Homework Assignment Essay

1.Prepare an analysis of the automobile manufacturing industry using Porter’s five forces framework. For each component force provide support for your conclusion. In addition, at the completion of your analysis provide a conclusion, along with support, of whether you expect the automobile industry to report high or low profitability in the near future. 2. Tremble Company manufactures outdoors wear for women. During 2009, the company reported the following items that affected cash. Required: Indicate whether each of these items is a cash flow from operating activities (O), investing activities (I), or financing activities (F). A. Paid cash for supplies B. Purchased equipment by paying cash C. Collected cash on account from customers D. Paid dividends to stockholders E. Paid suppliers for fabric F. Borrowed money from a bank on a long-term note G. Paid interest to bank on the note H. Paid wages to employees I. Sold shares of common stock to new stockholders 3. The following selected financial data pertain to four companies: a hotel, a travel agency, a meat packing company and a pharmaceutical company. Required: Match each with the financial information and explain why you made your choice as you did. Balance Sheet Data (component percentages)Company 1Company 2Company 3Company 4 Cash7.222.06.011.2 Accounts Receivable28.040.03.423.0 Inventory21.40.50.927.4 Property, Plant & Equipment 32.019.075.125.0 Income Statement Data (component percentages) Gross Profit15.2Not ApplicableNot Applicable44.0 Profit before Taxes1.83.32.57.0 Ratios Current ratio (over the last five years)1.61.30.51.8 Inventory turnover ratio27.8Not ApplicableNot Applicable 3.4 Debt-to-equity ratio1.82.35.81.4 4. Use the current asset section of the balance sheets of the El Paso Company as of January 31, 2012 and 2011 presented below to answer the questions that follow. 2012 2011 Cash and cash equivalents$ 75,000$ 58,800 Trade accounts receivable, net 157,500 193,200 Inventory 208,200 253,400 Other current assets 18,400 15,500 Total current assets$ 459,100$ 520,900 Total assets$2,650,000$3,430,000 Required: (a) In the spaces provided below, complete a Percentage Change analysis of the current asset section of El Paso Company’s balance sheet for 2012, using the following format to provide your answers for the amount of dollar change and the amount of percentage change, rounding â€Å"% Change† to one decimal place, e.g., 8.3%. Accounts$ Change% Change (b) Provide a short evaluation of this analysis.

Goals: Problem Solving and Population Reference Bureau

Abstract â€Å"To prepare for solving a problem, we must first acknowledge that the problem exists. Then, we must accept it, and clearly define or identify it. Finally, we must commit to solving the problem. Without some degree of personal commitment, the problems that we acknowledge, accept, and identify might never be resolved. 1. using a current local or international newspaper, identify an important local, national, or international concern that needs to be solved.Use the Library and Information Resources Network (LIRN) link by clicking here to locate two or more credible articles that provide background information and an analysis of the problem. You can also access LIRN in your online course by clicking on Course Home tab, then the Online Resources link. Contact your Campus for your LIRN password. 3. Using the articles you found as a resource, explain the concern using the five â€Å"Problem Solving Methods† found on page 104 of your textbook. Use Microsoft Word to resp ond to your problem.Your response should consist of 1-2 pages. Cite your articles using APA guidelines. Visit the APA Guide for assistance with APA formatting. † Week Two Individual Work (1) Introduction Using the articles I found as a resource, I am going to explain the concern using the five â€Å"Problem Solving Methods†. This is a big issue and I think we should all be actively trying to solve this issue. Environmental Problems I am going to be discussing environmental problems. I will use the problem solving methods as they are outlined in our text.â€Å"Problem- Solving Method (Advanced) Step 1: What is the problem? a. What do I know about the situation? b. What results am I aiming for in this situation? c. How can I define the problem? Step 2: What are the alternatives? a. What are the boundaries of the problem situation? b. What alternatives are possible within these boundaries? Step 3: What are the advantages and/ or disadvantages of each alternative? a. What are the advantages of each alternative? b. What are the disadvantages of each alternative? c.What additional information do I need to evaluate each alternative? Step 4: What is the solution? a. Which alternative(s) will I pursue? b. What steps can I take to act on the alternative(s) chosen? Step 5: How well is the solution working? a. What is my evaluation? b. What adjustments are necessary? †(Chafee) The problem is environmental problems, such as we have been polluting our planet’s air, water, and land; depleting its resources; and accumulating a lot of waste for which we need to find places to store.I know this situation needs to be suppressed on some level; because if we continue at this rate, then our environment will not be fit to live in. We have 6. 8 billion people on Earth today (Population Reference Bureau, 2009) and all of these people need food, water, clothing, and shelter. In addition to these minimal needs to survive, millions of people in developed nation s have cars, large homes, air conditioning, heated houses, washers, dryers, heated water for bathing, refrigerators, stoves, and so on.Hence, having nearly 7 billion people on Earth, compared to 5.2 billion people just 20 years ago (Population Reference Bureau, 1990), and having many people with a high standard of living, means that we humans will pollute a lot, deplete a lot, and build up huge amounts of waste that need to be stored. A second major reason why we have a big problem of polluting, depleting, and storing of waste is that during the past 200 years, we have gone from an agricultural way of life to an industrial way of life. Instead of â€Å"living off the land,† â€Å"growing grain to eat, and tending to farm animals, we built  factories and machines and created a new status called the factory worker to produce all kinds of products to consume—as a stroll through a typical shopping mall will show.To create these products, we have used a lot of resources and polluted the air and rivers. One of the most dangerous consequences of our polluting the environment is that we add huge amounts of carbon dioxide to the atmosphere as the result of burning fossil fuels, such as oil and gas, by industries and automobiles.†The result is the warming of our planet and the possible change of Earth’s climate, which could wreak havoc for the growing seasons. What can we do about this? More and more people are coming to the realization that we must consider the long term, what is good for the global community, and what is good for future generations if we want to survive as a species. This will require us to think, plan, sacrifice, and change our ways of living. Many people in our country, and throughout the world, do not realize the seriousness of our environmental problem.Hence, part of the solution is to make Americans more aware of the problem and to educate them about the problem. We must find ways to give these Americans incentives s o that they want to address the environmental problem or at least accept the notion that we must address this problem, regardless of their vested interests. The environmental problem will not go away by denying its existence or by denying that it is becoming a bigger and bigger problem. The oceans and the air are common property that we all share.If air and water pollution stayed only in the country that produced it, the nation producing this pollution could take the initiative and responsibility to clean up the pollution it produced. But air and water pollution does not stop at state boundaries; rather it spreads throughout the world. We as citizens of this world, not just citizens of a nation, will need to work together to clean up our oceans and air. Probably, we will eventually need to agree on some worldwide goals for the planet. We have been moving in this direction by attempting to decrease carbon dioxide and chlorofluorocarbon emissions.We will probably need to make saving o ur environment one of the main goals of our world community. Within this goal, we will need to agree on more specific goals such as decreasing carbon dioxide, sulfur dioxide, and chlorofluorocarbons; increasing the amount of rainforest; finding new, better, and safer ways of storing hazardous waste; and producing more energy without polluting more, depleting more, and creating more waste. Conclusion This is an issue we must all face together. We must realize that there is a problem and work on long term goals to correct this problem.Eventually, we may be able to turn this around. However, we must think long term, not only think about the here and now. Probably, a key factor, if not the key factor, in solving our environmental problem is time. Can we, as a world community, act soon enough to head off environmental trends that could be difficult, if not impossible, to reverse—for example, rising carbon dioxide emissions leading to rising temperatures, melting glaciers, rising s ea levels, and changing cli- mate patterns throughout the world? We must face this with a sense of urgency.

Wcf services, data access, and other features

5.1 IntroductionMicrosoft Windows Communication Foundation ( WCF ) is one of the cardinal engineerings available in.NET Framework 3.0 and ulterior versions. This session briefly introduces an overview of WCF services. The session besides takes a expression at the new informations related controls in ASP.NET 3.5. As organisations grow planetary, there is a strong demand for Web applications to accommodate to planetary audiences and civilizations. This session describes globalisation and besides discusses the support for handiness in ASP.NET 3.5. Finally, the session explains about nomadic applications in ASP.NET 3.5.5.2 WCF ServicesWCF is designed as incorporate programming theoretical account that helps to make distributed applications utilizing assorted.NET engineerings such as utilizing Web services, .NET Remoting, Message Queue ( MSMQ ) , Enterprise Services, and so forth. Through WCF, you can make a individual service that can be exposed as named pipes, HTTP, TCP, and so on.5.2.1 Making a WCF Service with ASP.NETASP.NET and Visual Studio 2008 enable you to make and devour WCF services. The first measure towards this is to specify the service contract. The stairss to specify a service contract are as follows: 1. Launch Ocular Studio and choose a new Web undertaking of type WCF Service Application. This templet defines a Web undertaking for hosting the WCF service and will make a mention to System.ServiceModel.dll in the undertaking. This assembly contains the WCF categories. The undertaking templet will besides bring forth a default service named Service1.svc and a related contract file named IService1.cs. You can rename these two files suitably. For illustration, you could call the undertaking as TestServices and the service itself as NewService. The contract file, INewService.cs, is a.NET Framework interface that includes the service property classes for the service category, the operations, and the members. The.svc.cs file is a category implementing this interface. A WCF Service application is automatically configured so that it can be hosted in IIS. It exposes a standard HTTP end point. The & lt ; system.servicemodel & gt ; subdivision of the web.config file describes these scenes. An illustration of & lt ; system.servicemodel & gt ; subdivision in web.config is shown in Code Snippet 1.Code Snippet 1& lt ; system.serviceModel & gt ; & lt ; services & gt ; & lt ; service name= † TestServices.NewService † behaviorConfiguration= † TestServices.NewService † & gt ; & lt ; endpoint address= † † binding= † wsHttpBinding † contract= † TestServices.NewService.INewService † & gt ; & lt ; individuality & gt ; & lt ; dns value= † localhost † / & gt ; & lt ; /identity & gt ; & lt ; /endpoint & gt ; & lt ; endpoint address= † mex † binding= † mexHttpBinding † contract= † IMetadataExchange † / & gt ; & lt ; /service & gt ; & lt ; /services & gt ; & lt ; behaviours & gt ; & lt ; serviceBehaviors & gt ; & lt ; behavior name= † TestServices.NewServiceBehavior † & gt ; & lt ; serviceMetadata httpGetEnabled= † true † / & gt ; & lt ; serviceDebug includeExceptionDetailInFaults= † false † / & gt ; & lt ; /behavior & gt ; & lt ; /serviceBehaviors & gt ; & lt ; /behaviors & gt ; & lt ; /system.serviceModel & gt ; 2. Implement the service contract. To implement the service, you start by specifying the contract via the interface. For illustration, see a scenario where you want to expose methods of a service that work with the Suppliers table in a Shipments database. Make a Supplier category inside ISupplierService.cs and tag it as a DataContract and taging each of its members as DataMember. Code Snippet 2 shows an illustration:Code Snippet 2[ DataContract ] public category Supplier { // specify a belongings [ DataMember ] public int SupplierCode { get ; set ; } // define other belongingss } The following measure is to specify the methods of your interface in ISupplierService.cs and tag them with the OperationContract property. You need to tag the interface with the ServiceContract property as shown in Code Snippet 3.Code Snippet 3[ ServiceContract ] public interface ISupplierService { [ OperationContract ] Supplier GetSupplier ( int supplierCode ) ; [ OperationContract ] Supplier SaveSupplier ( Supplier supplierper ) ; } WCF will utilize the interface to expose a service. The service will be configured based on the web.config file. The service interface is implemented inside the ISupplierService.svc.cs file as shown in Code Snippet 4.Code Snippet 4public category SupplierService: ISupplierService { confString = ConfigurationManager.ConnectionStrings [ â€Å" SupplierString † ] .ToString ( ) ; public Supplier GetSupplier ( int supplierId ) { . . . } public nothingness Display ( Supplier provider ) { . . . } } The contract is defined via the ISupplierService interface. The contract is implemented inside the SupplierService.svc file.5.3.2 Calling or devouring the WCF serviceThe stairss to configure one or more service end points and host the service in an application are taken attention of by default while executing all the stairss carried out until now. For illustration, an end point is configured via the default HTTP end point set up inside the web.config file and the service is hosted by IIS and ASP.NET. Now eventually, you can name the WCF service. You need to put a client to name the service. The client could be an ASP.NET Web site, a Windows application, or an application on a different platform. Assuming that the client is traveling to be an ASP.NET Web site for the current scenario, the stairss to name the service are as follows: 1. Make an ASP.NET Web site. 2. To bring forth a proxy category utilizing Ocular Studio 2008, right-click your Web site and choice Add Service Reference. The Add Service Reference duologue box is displayed as shown in figure 5.2. This duologue box allows you to specify an reference to your service. The construct of proxy category is similar to that in XML Web services – it is a WCF service client enabling you to work with the service without holding to cover with the inside informations of WCF. You can besides make the placeholder by utilizing the ServiceModel Metadata Utility command-line tool ( Svcutil.exe ) . 3. Stipulate an appropriate namespace in the Namespace box in the duologue box. This namespace will specify the name for the proxy category that will be generated by Ocular Studio. 4. Specify binding and end point information. Actually, the Add ServiceReference duologue box generates the appropriate end point information automatically when you add the service mention. The web.config file will incorporate this information as shown in Code Snippet 5.Code Snippet 5& lt ; system.serviceModel & gt ; & lt ; bindings & gt ; & lt ; wsHttpBinding & gt ; & lt ; adhering name= † WSHttpBinding_ISupplierService † closeTimeout= † 00:01:00 † openTimeout= † 00:01:00 † receiveTimeout= † 00:10:00 † sendTimeout= † 00:01:00 † bypassProxyOnLocal= † false † transactionFlow= † false † hostNameComparisonMode= † StrongWildcard † maxBufferPoolSize= † 524288 † maxReceivedMessageSize= † 65536 † messageEncoding= † Text † textEncoding= † utf-8 † useDefaultWebProxy= † true † allowCookies= † false † & gt ; & lt ; readerQuotas maxDepth= † 32 † maxStringContentLength= † 8192 † maxArrayLength= † 16384 † maxBytesPerRead= † 4096 † maxNameTableCharCount= † 16384 † / & gt ; & lt ; reliableSession ordered= † true † inactivityTimeout= † 00:10:00 † enabled= † false † / & gt ; & lt ; security mode= † Message † & gt ; & lt ; transport clientCredentialType= † Windows † proxyCredentialType= † None † realm= † † / & gt ; & lt ; message clientCredentialType= † Windows † negotiateServiceCredential= † true † algorithmSuite= † Default † establishSecurityContext= † true † / & gt ; & lt ; /security & gt ; & lt ; /binding & gt ; & lt ; /wsHttpBinding & gt ; & lt ; /bindings & gt ; & lt ; client & gt ; & lt ; endpoint address= † hypertext transfer protocol: //localhost:4392/SupplierService.svc † binding= † wsHttpBinding † bindingConfiguration= † WSHttpBinding_ISupplierService † contract= † NwServices.ISupplierService † name= † WSHttpBinding_ISupplierService † & gt ; & lt ; individuality & gt ; & lt ; dns value= † localhost † / & gt ; & lt ; /identity & gt ; & lt ; /endpoint & gt ; & lt ; /client & gt ; & lt ; /system.serviceModel & gt ; There are two options to pull off and redact the WCF constellation information: you can redact straight in web.config or you can utilize the Service Configuration Editor to pull off your end points. Right-click the web.config file and take Edit Wcf Configuration. This will establish the Service Configuration Editor duologue box. Finally, you will make a Web page will name the service via the proxy category. Code Snippet 6 shows portion of the codification in the Web page that will instantiate the proxy category and name the service.Code Snippet 6. . . SupplierServices.SupplierServiceClient testSupplier = new SupplierServices.ShipperServiceClient ( ) ; SupplierServices.Supplier provider = new SupplierServices.Supplier ( ) ; provider = testSupplier.GetSupplier ( supplierCode ) ;5.5 New Data Controls in ASP.NET 3.5ASP.NET 3.5 defines several new informations related controls including LinqDataSource, EntityDataSource, and ListView.5.5.1 LinqDataSourceLanguage-Integrated Query ( LINQ ) is a set of characteristics that adds question capablenesss to.NET linguistic communications such as C # . LINQ enables you to question informations from diverse informations beginnings in an easy mode. The lone status is that these informations beginnings must be LINQ-compatible, which means they must be supported by LINQ. LINQ can be used with SQL, XML files, objects ( such as C # arrays and aggregations ) , and ADO.NET DataSets. The LinqDataSource is new to ASP.NET 3.5 and Visual Studio 2008. It is used to recover informations from a LINQ information theoretical account. This control enables you to expose informations from a database by utilizing LINQ to SQL. Once you have generated informations categories utilizing the Object/Relational ( O/R ) interior decorator, you can adhere to those categories utilizing the LinqDataSource control. The ContextTypeName property is used in markup with the LinqDataSource to tie in the database context of your LINQ-based informations. See a scenario where you have defined a DataContext category named EmpDataContext utilizing Linq to SQL Classes in Visual Studio 2008. The following markup shows how you would link to this category utilizing the LinqDataSource control:Code Snippet 7& lt ; asp: LinqDataSource ID= † lnqEmp † runat= † waiter † ContextTypeName= † EmpDataContext † EnableDelete= † True † EnableInsert= † True † EnableUpdate= † True † OrderBy= † EmpCode † TableName= † Employees † & gt ; & lt ; /asp: LinqDataSource & gt ; Alternatively of typing the markup shown in Code Snippet 7, you can besides utilize the Configure Data Source ace to tie in the DataContext category with the LinqDataSource control. This can be done utilizing following stairss: 1. Add a LinqDataSource control to the Web page. 2. Snap the smart ticket beside the control. 3. In the context bill of fare that is displayed, choice Configure Data Source. This will expose the Configure Data Source ace as shown in figure 5.3.Figure 5.3: Configure Data Source Wizard for LinqDataSource4. Continue with the measure by measure process shown in the Configure Data Source ace. The LinqDataSource control allows you to specify parametric quantities, to bespeak sorting, enable paging, and more. You can besides specify questions holding Where and OrderBy clauses. The Where clause uses the WhereParameters stand foring a question twine that filters the information on the question twine. You can besides adhere a LinqDataSource control to a data-bound control.5.5.2 EntityDataSourceThe EntityDataSource control is new to the.NET Framework 3.5. The EntityDataSource control enables you to entree informations utilizing the ADO.NET Entity Framework. Users who are familiar with data-bound controls will happen the EntityDataSource control similar to the SqlDataSource, LinqDataSource, and ObjectDataSource controls. The EntityDataSource control enables you to adhere informations in an Entity Data Model ( EDM ) to Web controls on a page. You construct questions utilizing snippings of Entity SQL codification and delegate them to the Where, OrderBy, GroupBy, and Select operato rs. You can provide parameter values to these operations from page controls, cookies, and other ASP.NET parametric quantity objects. The EntityDataSource interior decorator enables you to configure an EntityDataSource control easy at design clip. Similar to LinqDataSource, you can utilize the Configure Data Source ace of the EntityDataSource control to initialise the informations beginning. Figure 5.4 shows the ace. Initially, the ace enables you to choose a named connexion from the Web.Config file or add a connexion twine to link to the database. The 2nd page of the ace will hold content depending on whether a Select statement configured by the options on the ace is used or some other bid text is used.5.5.3 ListViewThe ListView control is used to adhere and expose informations points from a information beginning. The ListView provides characteristics that support folio, screening, and grouping of points. Using the ListView control, you can execute edit, insert, and delete operations on informations without the demand for any codification. You can adhere the ListView control to informations by utilizing the DataSourceID belongings. This enables you to adhere the ListView control to a information beginning control, such as the SqlDataSource control. You can besides adhere the ListView control to informations by utilizing the DataSource belongings. This enables you to adhere to assorted objects, which includes ADO.NET datasets and informations readers and in-memory constructions such as aggregations. This attack requires that you write codifications for any extra functionality such as sorting, paging, and updating. Items that are displayed by a ListView control are defined by templets, likewise to the DataList and Repeater controls. The ListView control lets you expose informations as single points or in groups. You define the chief layout of a ListView control by making a LayoutTemplate templet. The LayoutTemplate must include a control that acts as a proxy for the information. You define content for single points utilizing the ItemTemplate templet. This templet typically contains controls that are data-bound to data columns or other single informations elements. Code Snippet 8 shows a ListView control that displays names of classs from the Categories tabular array in Library database.Code Snippet 8& lt ; caput runat= † waiter † & gt ; & lt ; title & gt ; ListView Demo & lt ; /title & gt ; & lt ; manner type= † text/css † & gt ; .table { boundary line: thin # 000000 solid ; border-collapse: prostration ; boundary line: 1px solid # 000000 ; } table td { boundary line: 1px solid # FF0000 ; } & lt ; /style & gt ; & lt ; /head & gt ; & lt ; organic structure & gt ; & lt ; signifier id= † form1 † runat= † waiter † & gt ; & lt ; div & gt ; & lt ; /div & gt ; & lt ; br / & gt ; & lt ; br / & gt ; & lt ; asp: ListView runat= † waiter † ID= † ListView1 † DataSourceID= † SqlDataSource1 † & gt ; & lt ; LayoutTemplate & gt ; & lt ; table runat= † waiter † id= † table1 † class= † tabular array † & gt ; & lt ; tr runat= † waiter † id= † itemPlaceholder † & gt ; & lt ; /tr & gt ; & lt ; /table & gt ; & lt ; /LayoutTemplate & gt ; & lt ; ItemTemplate & gt ; & lt ; tr id= † Tr1 † runat= † waiter † & gt ; & lt ; td id= † Td1 † runat= † waiter † & gt ; & lt ; % — Data-bound content. — % & gt ; & lt ; asp: Label ID= † NameLabel † runat= † waiter † Text= ‘ & lt ; % # Eval ( â€Å" Category † ) % & gt ; ‘ / & gt ; & lt ; /td & gt ; & lt ; /tr & gt ; & lt ; /ItemTemplate & gt ; & lt ; /asp: ListView & gt ; & lt ; asp: SqlDataSource ID= † SqlDataSource1 † runat= † waiter † ConnectionString= † & lt ; % $ ConnectionStrings: LibraryConnectionString % & gt ; † SelectCommand= † SELECT [ CategoryID ] , [ Category ] FROM [ BookCategories ] † & gt ; & lt ; /asp: SqlDataSource & gt ; The end product of this markup is seen in figure 5.6. 5.6 Globalization.NET Framework 4.NET Framework 3.0Ocular Studio 2005Ocular Studio.NET 2003ASP.NET allows you to develop Web applications that can be accessed by 1000000s of users across the Earth. This means that the Web applications should be created taking into consideration the demands of users from assorted parts of the universe. Therefore, you need to internationalise your application to do it accessible to users belonging to different states, parts, civilizations, linguistic communications, and so on. Globalizationinvolves the procedure of developing Web applications that can be used by users from different parts of the universe. These Web applications will be independent of the linguistic communication and civilization. In short, globalising an application involves doing your application readable to a broad scope of users irrespective the cultural and regional differences. See a scenario of a medical research company in New York. The company has created a Web application that displays the consequences of different researches carried out by the company. The Web application is created sing a broad scope of users of different linguistic communications and civilizations. This means that the Web site is civilization and linguistic communication specific. Therefore, for a user from United States, the Web site content appears in English and for the user from France, the Web site content appears in French, and so on. But, the company wants to follow a standard format while stand foring the medical marks and symbols. This means that irrespective of the user ‘s location, the marks and symbols should look same. To implement this, developers can globalise the Web application. Using ASP.NET, you can make Web applications that can automatically set civilization, and arrange day of the months and currency harmonizing to user demands. ASP.NET supports globalisation by supplying the System.Globalization namespace. The System.Globalization namespace provides a set of categories to construct applications that can be supported across the Earth. These categories allow you to cover with assorted globalisation issues such as civilization, part, calendar support, and date-time data format. Table 5.1 lists the normally used categories of the System.Globalizationnamespace.ClassDescriptionCalendarThis category represents yearss in hebdomads, months, and old ages. It is the basal category for other civilization specific calendars such as GregorianCalendar, JapaneseCalendar, and KoreanCalendarCultureInfoThis category provides culture-specific information such as name of the civilization and linguistic communicationNumberFormatInfoThis category represents the manner the numeral values are formatted and displayed for a specific civilizationRegionInfoThis category provides information about country/region such as country/region n ame and two missive codification defined in ISO 3166Table 5.1: Normally Used Classs of System.GlobalizationFor illustration, to expose the currency symbol of the current civilization in your Web application, the codification shown in Code Snippet 9 will be used.Code Snippet 9CultureInfo curie = System.Threading.CurrentThread.CurrentCulture ; NumberFormatInfo nfi = ci.NumberFormat ; Response.Write ( â€Å" Currency Symbol: â€Å" + nfi.CurrencySymbol + â€Å" & lt ; BR & gt ; † ) ; If the current civilization is US, the currency symbol displayed as a consequence of Code Snippet 9 will be $ . You can put the civilization or an ASP.NET Web page declaratively utilizing one of two attacks:Add a globalisation subdivision to the web.config file, and so put the uiculture and civilization properties, as shown:& lt ; globalisation uiCulture= † Es † culture= † es-MX † / & gt ; This sets the UI civilization and civilization for all pages,Set the Culture and UICulture attributes of the @ Page directive, as shown in the undermentioned illustration:& lt ; % @ Page UICulture= † Es † Culture= † es-MX † % & gt ; This sets the UI civilization and civilization for an single page,.NET Framework 4Ocular Studio 2005A resource file is used to hive away user interface strings for interpreting the application into other linguistic communications. It is a utile constituent in the procedure of globalisation and localisation. Resource files are stored in XML format and contain strings, image file waies, and other resources. This is because you can make a separate resource file for each linguistic communication into which you want to interpret a Web page. The stairss to make a resource file are as follows:Ensure that your Web site has a booklet such as App_GlobalResources in which to hive away the resource file. You can add such a booklet by right-clicking on the Website name in Solution Explorer and choosing Add ASP.NET Folder and so choosing App_GlobalResources as shown in figure 5.7.Right-click the App_GlobalResources booklet, and so snap Add New Item. This will make a resource file,In the Add New Item duologue box, under Ocular Studio installed templets, click Resource File.In the Name box, stipulate a name for the resource file and so snap Add. The Resources Editor window glass is displayed where you can type names ( keys ) , values, and optional remarks bespeaking each resource point.Type appropriate key names and values for each resource that you need in your application, and so salvage the file.To make resource files for extra linguistic communications, copy the file in Solution Explorer or in Windows Explorer, and so rename i t utilizing the syntax filename.language-culture.resx. For case, if you create a planetary resource file named Resources.resx for interlingual rendition to Spanish ( Mexico ) , you will call the copied file Resources.es-mex.resx. Open the copied file and interpret each value, go forthing the names ( keys ) the same.Perform and reiterate stairss 6 and 7 for each extra linguistic communication that you want to utilize.5.8 Accessibility Support in ASP.NET.NET Framework 4.NET Framework 3.0Ocular Studio 2005Accessible Web applications enable people with disablements to utilize assistive engineerings, such as screen readers, to work with Web pages. ASP.NET can assist you make accessible Web applications. ASP.NET controls support handiness criterions including Web Content Accessibility Guidelines 1.0 ( WCAG ) to a great extent. However, sometimes ASP.NET controls produce consequences that fail to follow with all handiness criterions. In such instances, you will necessitate to manually configure the controls for handiness. You can configure keyboard support for your pages in ASP.NET utilizing one of these attacks:Set check order for controls utilizing the TabIndex belongings.Stipulate a default button for a signifier or Panel control by puting the DefaultButton belongings.Define entree keys for button controls by puting the AccessKey belongings.Use Label controls with text boxes, which let you specify entree keys for the text boxes.5.9 Mobile Applications in ASP.NET 3.5Today, in major parts of the universe, a nomadic phone is no longer a luxury but a necessity. Mobile devices such as smartphones, Personal Digital Assistants ( PDAs ) , and others have become indispensable appliances and back up many powerful characteristics that make life easier and well-organized. These nomadic devices can hold a figure of applications installed on them. Mobile application development is hence considered to be a important portion of a developer ‘s skillset. As an ASP.NET developer, it is imperative for you to be familiar with the creative activity of both Web and nomadic applications.5.9.1 Mobile Application Creation in ASP.NET 3.5In earlier versions of Ocular Studio before Visual Studio 2008, there was built-in interior decorator support for developing nomadic Web applications. The IDE provided an application templet utilizing which you could make a new nomadic Web application. An point templet allowed you to custom-make the show and visual aspect of controls in Design View. Using the interior decorator, you could work with nomadic Web signifiers and nomadic Web user controls in Design View. The IDE besides provided tool chest and design-time layout support which made the undertaking of working with ASP.NET Mobile Web applications simple and easy. However, from Ocular Studio 2008 onwards, there is no reinforced -in interior decorator support for developing nomadic Web applications. You can still make and work with nomadic Web applications by utilizing downloaded templets from the Web. The stairss to make this are listed below:Download ASP.NET Mobile Templates.zip from hypertext transfer protocol: //blogs.msdn.com/b/webdevtools/archive/2007/09/17/tip-trick-asp-net-mobile-development-with-visual-studio-2008.aspxExtract the nothing file. This will ensue in a figure of other nothing files.Copy the nothing files with file names stoping with â€Å" _cs † to: [ My Documents ] Visual Studio 2008TemplatesItemTemplatesVisual C # .Restart Visual Studio.Create an empty Website as shown in Figure 5.8.Select WebsiteaAdd New Item. The Add New Item duologue box will expose the freshly added templates available as shown in figure 5.9.Choose the templet Mobile Web Form as shown in figure 5.10 and click Add.A nomadic Web signifier will be added to the Website application. Switch to the codification position. You will detect that the Default category inherits from System.Web.UI.MobileControls.MobilePage.An alternate manner of making Mobile Web signifiers in Ocular Studio 2008 is to add a Web signifier to your application and so modify the page category declaration to inherit from System.Web.UI.MobileControls.MobilePage.Once the Mobile Web page is created utilizing either of these two attacks, you can so put nomadic Web controls onto the page by dragging them from the Toolbox or by typing markup and properties.Code Snippet 10 demonstrates how to make a simple nomadic signifier with a Panel and a Label control.Code Snippet 10& lt ; % @ Page Language= † C # † AutoEventWireup= † true † CodeFile= † Default.aspx.cs † Inherits= † _Default † % & gt ; & lt ; % @ Register TagPrefix= † Mobile † Namespace= † System.Web.UI.MobileControls † Assembly= † System.Web.Mobile † % & gt ; & lt ; html xmlns= † hypertext transfer protocol: //www.w3.org/1999/xhtml † & gt ; & lt ; organic structure & gt ; & lt ; nomadic: Form id= † Form1 † runat= † waiter † BackColor= † # 99ffcc † & gt ; & lt ; Mobile: Label Name= † lblMessage † runat= † waiter † Font-Bold= † True † ForeColor= † Blue † Font-Size= † Large † & gt ; Welcome, this is exciting & lt ; /mobile: Label & gt ; & lt ; br & gt ; & lt ; /br & gt ; & lt ; Mobile: Image ID= † Image1 † Runat= † waiter † ImageUrl= † Garden.jpg † & gt ; & lt ; /mobile: Image & gt ; & lt ; /mobile: Form & gt ; & lt ; /body & gt ; & lt ; /html & gt ; Save and construct the application.5.9.2 Executing Mobile ApplicationsThe stairss to prove this application are as follows:Install the Windows Mobile Device Center if it is non already installed.Install Windows Mobile 6.0 Professional SDK Refresh if it is non already installed.Select Tools- & gt ; Device Emulator Manager in the Visual Studio 2008 IDE.Right-click Windows Mobile 6.0 Professional Emulator in the Device Emulator Manager duologue box and choice Connect.Right-click Windows Mobile 6.0 Professional Emulator in the Device Emulator Manager duologue box and choice Cradle. Windows Mobile Device Center ( WMDC ) is opened. Ensure that the connexion puting on WMDC is set to DMA. If you are utilizing a Work web to link to the Internet, so choose â€Å" This computing machine connects to Work Network. †Launch Internet Explorer on the copycat and navigate to the URL of your nomadic Web application. Assuming that the local machine name is test, the end product will be as shown i n figure 5.11. You can besides utilize the IP reference of the machine alternatively of machine name.5.9.3 Mobile Device CapabilitiesPeoples around the universe usage different nomadic devices. These devices may differ in show sizes and capablenesss. If a Web developer develops a Web application for a specific nomadic device, it may non work when exported to other nomadic devices. To get the better of this job, there is a demand of some agencies of device filtering. Device filtering is the procedure of custom-making nomadic Web waiter controls to correctly expose them on select nomadic devices. Using device filters, nomadic Web applications can custom-make the visual aspect of controls for specific hardware devices. The customization is based on the capablenesss of the hardware device being used to shop the application. Device filters are used to custom-make the behaviour of Web waiter controls depending on the browser or device that accesses them. Typically, the web.config file shops device capablenesss in the & lt ; deviceFilters & gt ; subdivision. By default, your nomadic Web application in.NET Framework 3.5 and Visual Studio 2008 may non hold a web.config file. To add it, launch the Add New Item duologue box and choose the Mobile Web Configuration point templet as shown in figure 5.12. The web.config will incorporate undermentioned device filters by default in the & lt ; deviceFilters & gt ; subdivision: & lt ; deviceFilters & gt ; & lt ; filter name= † isJPhone † compare= † Type † argument= † J-Phone † / & gt ; & lt ; filter name= † isHTML32 † compare= † PreferredRenderingType † argument= † html32 † / & gt ; & lt ; filter name= † isWML11 † compare= † PreferredRenderingType † argument= † wml11 † / & gt ; & lt ; filter name= † isCHTML10 † compare= † PreferredRenderingType † argument= † chtml10 † / & gt ; & lt ; filter name= † isGoAmerica † compare= † Browser † argument= † Go.Web † / & gt ; & lt ; filter name= † isMME † compare= † Browser † argument= † Microsoft Mobile Explorer † / & gt ; & lt ; filter name= † isMyPalm † compare= † Browser † argument= † MyPalm † / & gt ; & lt ; filter name= † isPocketIE † compare= † Browser † argument= † Pocket IE † / & gt ; & lt ; filter name= † isUP3x † compare= † Type † argument= † Phone.com 3.x Browser † / & gt ; & lt ; filter name= † isUP4x † compare= † Type † argument= † Phone.com 4.x Browser † / & gt ; & lt ; filter name= † isEricssonR380 † compare= † Type † argument= † Ericsson R380 † / & gt ; & lt ; filter name= † isNokia7110 † compare= † Type † argument= † Nokia 7110 † / & gt ; & lt ; filter name= † prefersGIF † compare= † PreferredImageMIME † argument= † image/gif † / & gt ; & lt ; filter name= † prefersWBMP † compare= † PreferredImageMIME † argument= † image/vnd.wap.wbmp † / & gt ; & lt ; filter name= † supportsColor † compare= † IsColor † argument= † true † / & gt ; & lt ; filter name= † supportsCookies † compare= † Cookies † argument= † true † / & gt ; & lt ; filter name= † supportsJavaScript † compare= † Javascript † argument= † true † / & gt ; & lt ; filter name= † supportsVoiceCalls † compare= † CanInitiateVoiceCall † argument= † true † / & gt ; & lt ; /deviceFilters & gt ; ASP.NET provides the HasCapability ( ) method in the MobileCapabilities category to find device capablenesss for nomadic devices. The method takes two parametric quantities. The first is a twine stipulating a delegateName that will indicate to the device rating method, belongings name, or so forth and the 2nd parametric quantity is any value that the capabilityName statement requires. The 2nd parametric quantity is optional. The HasCapability ( ) method enables you to find through codification whether the current device lucifers any device filter specified in the web.config file. Code Snippet 11 shows the usage of HasCapability ( ) method.Code Snippet 11:attempt { bool consequence = ( ( MobileCapabilities ) Request.Browser ) .HasCapability ( â€Å" supportsColor † , null ) ; txtvwMessage.Text = answer.ToString ( ) ; } gimmick ( ArgumentOutOfRangeException ) { txtvwMessage.Text = â€Å" false † ; }Here, the codification tries to look into whether there is any device filter named supportsColor defined in the web.config file. If yes, it assigns the true value to the TextView control, txtvwMessage. If there is no such filter defined, an ArgumentOutOfRangeException is raised and a value of false is assigned to the TextView control, txtvwMessage. In the web.config file shown earlier, there is a filter named supportsColor. Therefore, the result of Code Snippet 11 is that the TextView shows true.5.9.4 Using the DeviceSpecific ControlThe procedure of rendering a control otherwise based on the browser that requested the Web page is called adaptative rendition. You use the DeviceSpecific component in ASP.NET Mobile applications to implement adaptative rendition. One or more & lt ; Choice & gt ; elements incorporating different versions of the content aiming different devices are placed inside the & lt ; DeviceSpecific & gt ; component, as shown in Code Snippet 12.Code Snippet 12& lt ; nomadic: Form id= † frmTest † runat= † waiter † & gt ; & lt ; Mobile: Label Runat= † waiter † ID= † Label1 † & gt ; Welcome & lt ; DeviceSpecific & gt ; & lt ; Choice Filter= † isPocketIE † Font-Italic= † True † Font-Name= † Arial Black † / & gt ; & lt ; Choice Filter= † isNokia7110 † ForeColor= † Magenta † / & gt ; & lt ; /DeviceSpecific & gt ; & lt ; /mobile: Label & gt ; & lt ; /mobile: Form & gt ; Choices are evaluated from the first & lt ; Choice & gt ; component to the last. Each pick includes a Filter component. If the device satisfies the Filter so the content within that pick is displayed to the client. The last pick in the above illustration has no Filter. The content in this pick shows on all of the devices that satisfy none of the filters. The Filter property of the & lt ; Choice & gt ; component can besides mention to a filter in the web.config file.DrumheadWCF is a incorporate scheduling theoretical account that helps to make distributed applications utilizing.NET engineerings.ASP.NET 3.5 defines several new informations related controls including LinqDataSource, EntityDataSource, and ListView.Globalization involves the procedure of developing Web applications that can be used by users from different parts of the universe.A resource file is used to hive away user interface strings for interpreting the application into other linguistic communications and plays an of import function in globalisation.Most ASP.NET controls provide constitutional support for handiness in Web applications.ASP.NET 3.5 enables you to develop nomadic Web applications.Mobile device capablenesss differ from device to device and are specified utilizing & lt ; deviceFilters & gt ; in web.config file.

Lab5 Essay Example | Topics and Well Written Essays - 500 words

Lab5 - Essay Example The coal is received in chunk form and is then crushed into powder and blown into a burner where it combusts and produces heat of about 1000 degrees. The heat made is used to heat water into steam. The steam is then used to revolve the blades of a turbine. The turning motion then generates electricity by releasing electrons into a circuit (exp.lcc.edu). The smoke seen is coming from the plant is actually the gases of combustion e.g. carbon dioxide. According to (Edward & Grossman, 18) the two major concerns of burning coal includes pollution caused by emissions of contaminants like sulfur dioxide nitrogen oxides and mercury. To control this kind of gas pollution, the plant uses electrostatic precipitators that have electrically charged plates and wires. These are used to attract airborne contaminates as the hot air passes through it thus controlling pollution of the atmosphere (exp.lcc.edu). The cost of electricity usually depends on the number of people living in a house. My bill shows that we pay $1.50 per day for electricity. This cost can be reduced by turning off the lights when, not in use, also using energy saving light bulbs and electronics that are in good working condition in the house. The Lansing Board is a plant that supplies drinking water, fire protection and electricity to the citizens of Lansing. The board is a municipally owned utility, and it is different since it is a public utility and the customers own the system. The citizens of Lansing own the plant since they are the plant’s customers. The plant does not make any profit a quality that also makes it different from other power producing plants (lbwl.com). To conserve water, I would fix leaking faucets and use a cup when brushing teeth. A lot of water usually goes to waste when brushing since we leave the water running the whole time. Using a cup saves water that could otherwise be

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How do you use your time - Essay Example his situation nudges at family and career values which would place me in a dilemma of making an effort of spending time with family and risking exhaustion before my business meeting. My cousin is earnest but not demanding in his invite. His personal credibility is beyond reproach and he is fair enough in not expecting my full commitment to the occasion. His intention in speaking to me is a motive bound in family values and he does not display any intention aside from inviting me to the occasion. His intention is also persuasive but not insistent. As an audience to his request, the family link played a large part in deciding whether or not I would or should consider his request. He knew that I too was aware of the importance of family and that there were already fewer occasions when the extended family got to gather and mingle with each other. This rhetorical situation revolves around the issue of whether or not I should give time for my family on an otherwise uneventful weekend and risk being too weary for my business travel on the weekday work week; or whether or not I should not join family and friends for a gathering in order to stay refreshed for my business engagement. The main lines of reasoning or argument used in this rhetorical situation are my obligation to family and my duty to my career – to perform at 100% capability during the weekday workweek. My cousin is quick to remind me the value of family, but I would have to make a crucial choice on the situation in a few hours time. My cousin appeals not so much on reason but on my emotions and obligations to my family. He is knowledgeable of the fact that I would really be too tired from travelling to and from the baptism and then again for my business trip. Based on that assessment alone, reason would dictate that I would be compromising the quality of my work when the weekday would come. And he does not bring that logical part of the issue in the conversation. Instead, he appeals to my

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Managing Case Study on Colgate Co Example | Topics and Well Written Essays - 2500 words

Managing on Colgate Co - Case Study Example The report will also outline some of the competitors in this market that pose a challenge to the operations of Colgate in the oral and dental health care industry. 1.1 Background information about Colgate According to its official website, Colgate was established in 1806 and it was founded by William Colgate. To date, Colgate is regarded as the world’s leader in oral and dental health care and it offers products such as toothbrushes as well as toothpastes. Colgate operates in more than 200 countries though it is based in the US. According to Berger (2010), Colgate has a market share of 44,4 % in the world’s toothpaste industry and it operates in more than 200 countries. The company posted a profit of $3, 615 in the financial year of 2010. The brand is very popular in different countries. For instance, Colgate enjoys a lot of positive consumer response in large emerging economies such as India and Brazil. The company also offers different sizes of toothpaste to different customers. 2.0 Situational analysis of the marketing environment (SWOT) Basically, â€Å"SWOT analysis is a useful instrument that is used to help managers to identify internal strengths and weaknesses of a business and external opportunities and threats facing it,† (Strydom, 2004, p. 31). SWOT stands for strengths (S), weaknesses (W) while on the other hand the external environmental factors are regarded as either opportunities (O) or threats (T) and these factors help the company determine its current position in the market in order to map an effective strategy to realize its intended goals. The table below shows the SWOT analysis for Colgate. Table 1: SWOT analysis for Colgate Strengths The company has good human resources management practices which entails that it has a dedicated workforce The company also uses effective marketing strategies in selling its products Innovation is prioritized in terms of product development and it incorporates dental professionals in its o perations Colgate is a leader in dental hygiene The company operates in many countries across the globe Weaknesses The major weakness of this company is that it spends less on media advertising compared to its rival competitors Opportunities The major opportunity of the company is based on the aspect related to growing dental hygiene market across the whole world. The emerging markets also provide a good opportunity for Colgate Threats The major threat faced by Colgate is related to competition from other rival competitors. There are chances of substitute products being offered by other companies and this affects price of products offered. The other threat is related to currency fluctuations in different countries where Colgate operates Basically, the managers in a company should take advantage of the company’s strengths and opportunities while they put measures in place that are designed to minimise the weaknesses and threats. This section explains in detail the contents of the

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'English Law does not normally impose liability for failure to act despite the fact that there may be compelling moral justifications for doing so. Critically discuss this statement - Assignment Example This is one of the questionable areas of tort law. For instance, if a person sees a child drowning in a pool but does nothing to save him, they would not be held liable. However, if that person jumps in the water to save the child and acts negligently while doing so hence causing harm, they would be held liable for the harm caused due to their negligence. This paper discusses whether it is fair and justified for English law to not impose any liability upon failure to act, and the extent to which it collides with moral principles. It would be seen that the law actually does not violate any moral principles. It rather preserves the freedom of choice for people as they are in the best position to judge their own ability. If one is able to save someone, they may same them. But where one is incapable of saving someone, they should not be forced by law to save them. It is not that failure to act always escapes liability under English law: there are a few exceptions where courts do impose a liability. The most common are the circumstances where there is a special relationship e.g. parental, conjugal, doctor-patient. between the plaintiff and the defendant. Innkeepers, common carriers and certain other business relationships are also covered in this category. Defendants have an affirmative duty to act on the plaintiffs’ behalf and prevent injury where there is such a relation. Another exception is the one that is briefly mentioned above: there is no liability for not acting but once the defendant decides to act, they must do so in a reasonable way so as to avoid any harm that may be caused to the plaintiff due to the defendant’s negligence. Also, where the defendant has a control over land, a third party, or dangerous things that can cause harm to the plaintiff, the defendant has a duty to act and stop the danger. It can be said that maybe the establishment of duty does coincide with moral principles. In Home Office v Dorset Yacht Co

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Abraham Lincolns Role in the Civil War - Term Paper Example Enslavement, nevertheless, was the chief cause of the ever-increasing political conflict and opposition around the 1850s.There were numerous leaders who greatly contributed to the development and, eventually, the conclusion of this four-year war that killed millions of innocent lives. They, in many ways, have shaped and formed what is known as The Civil War today. Whether to instigate or to stifle the war, these leaders have unquestionably played a great part in it. Among these leaders was President Abraham Lincoln. He, throughout his presidency, has greatly molded and influenced the development and the end of this war. He, in a way, played a role in both the start and end of the Civil War. Many factors indeed instigated the Civil War. The trigger that ultimately pushed war into action was Abraham Lincoln’s victory in the presidential elections. During the presidential election of 1860, the Republican Party spearheaded by Abraham Lincoln had pushed against magnifying slavery o utside the states in which it previously subsisted.The Republicans intensely promoted patriotism, and in their 1860 manifesto they denounced disunion threats as affirmations of treason. This fervent drive to abolish slavery sprung from President Lincoln’s belief that slavery was the main cause of the war. In his second inaugural address, he said, "These slaves constituted a peculiar and powerful interest. All knew that this interest was somehow the cause of the war.†1 In retort to an anti-slavery Republican as the winner of the Presidential election, nearly a dozen Southern slave states in America affirmed their separation and breakaway from the United States. Many of these Southern whites that belonged to the Confederacy felt that secession had grown to be their only choice, as the people understood that Lincoln was against slavery and approved of Northern appeals. Together, they formed the Confederate States of America, better known universally as the Confederacy. Bot h the leaving presidency of President James Buchanan and the entering government disallowed the validity of secession, regarding it as rebellion. The other eight slave states turned pleas for secession down at this point. There was no nation in the world that acknowledged the Confederacy. As the Confederacy formed, the remaining twenty-five states reinforced the federal administration known collectively as the Union. Conflicts started on the April of 1861, when Confederate powers struck a U.S. military installation located at Fort Sumter in Charleston, South Carolina. After they severely bombarded the fort, the fort surrendered. A few days later, Lincoln called for a multitude that numbered around 75,000 from the states to recapture the fort and additional national property. Instead of furnishing troops for an assault on their fellow Southern states, North Carolina, Virginia, Arkansas, and Tennessee made a decision to join these states in withdrawal. Lincoln’s response of cal ling for a legion of volunteers led to statements of secession by these four slave states. This reaction to Ft. Sumter was a devastating call for war to support national morality. Only the state of Kentucky made an effort to stay neutral. A congregation of young men all throughout the land was in a great rush to enlist. Both sides built armies as the Union grasped control of the Border States during the early phases of the war and formed a naval barrier. Land combat in the East was indecisive between 1861 and 1862, as the Confederacy retorted Union efforts to seize its capital, Richmond, Virginia, particularly throughout the Peninsular Campaign. In the September of 1862, the Confederate movement in Maryland terminated in defeat at the

Introduction to social media in the classroom Research Proposal

Introduction to social media in the classroom - Research Proposal Example The intended audience for this study will be teachers, students and administrators of institutions who are keen to reduce the negative effect that social media has in classroom learning and gain from the benefits that it promises to bring. This study is important in the sense that it provides insights to how social media has been used by students in classroom settings; this will inform this research on how to carry out this (Dabbagh & Kitsantas, 2012). Literature will also provide insights on how scholars designed their research in order to answer their research questions; this will be relevant in this study since the research design used by previous scholars may be applicable to this study, therefore saving on time. The literature reviewed will also be used as a comparison tool for this study to ascertain the precision of the result. An experimental design will be used where the respondents will be divided into two groups, the experiment group will be allowed to access social sites for a week where statistics on their usage will be carried out, and the other group will not be allowed to use social networks for a week, after the experimentation period, questionnaires were given to the students. The study population is defined as all the elements involved in a study that satisfy the sample selection criteria to be included in the study, in our case, the population consists of all the students and the teaching staff of selected institutions. A sample size of 60 students was selected from schools where the experimental group would consist of 40 students and the remaining 20 would belong to the control group. The students who were selected to participate in the study were required to have been in the institution for at least one academic year and must be active users of at least two social media sites. A questionnaire and an in-depth interview were identified as the most

Triggered by the “Kolombusus-21’s exhibition” Essay Example for Free

Triggered by the â€Å"Kolombusus-21’s exhibition† Essay The issue of space travel has been widely debated in recent times, with opinions ranging from total support to a waste of money. In his opinion piece in ‘Daily newspaper’, entitled ‘Exploring our dreams’, Yvette Yergon uses a humble tone in contending that the government should provide more funds available for space travel. In contrast, Dr Peter Laikis’s sarcastic letter to the editor, ‘Off the planet’ appeals to all the people who have an interest in current world dilemmas, suggesting that our governments focus and  attention should be spent here on Earth rather than space travel. Yvette opens with statistics. The claim space is only ‘160km away’, ‘while Canberra to victoria is further away’ appeals to the readers logical side. Allowing them to believe, ‘space isn’t that far away’. It allows the reader to put in perspective how far space is really away. In addition by using a distance like ‘Victoria to Canberra’ it appears to be a very achievable distance, therefore making Yvette’s ‘dream’ a very possible ‘dream’ with which the reader can identify. The statistics give  Yvette credibility. Credibility, which is extended by the inclusion of personal background information. This allows Yvette’s views accepted as believable. Referring to the new possibilities that space exploration could lead to or fortunes that lie above, like ‘10,00 tones of gold’ inclines the reader share his ‘dream’. Leaning the reader to believe that space may hold the key or play a part in the future of earth. Yvette invokes hope by inviting the reader into a story. He records the observations of a young guide who starts, ‘it might only be a dream now’ using a  personal tone pulls the reader to his side. Going on to say ‘but one day it might come true’ showing the reader that his dream might be out of reach at the moment, but in the future may be very possible. The guides youth and enthusiasm is apparent and the reader is encouraged. The visuals assist with Yvette’s arguments. The first visual is an image of Kolombus’s ship. This picture represents how that ship was once the equivalent of a spacecraft discovering new continents, when it was thought to be impossible. Byincluding this it highlights, fin ding new continents was once impossible, showing the reading that there may possible be other world that just haven’t been discovered yet. The second visual shows all the befits that come from space travel. These include solar cells, global positioning system, safe food processing, radial tyres and medical imaging. All items that are very prevalent in society today, that we would not have without space travel. This positions the reader to believe that not only will space travel help us with mapping the solar system, but it will also help us to  discover or create new resources that would be beneficial for today’s society. Yvette ends by appealing to the readers’ emotions. Yvette tells how ‘we must recharge our scientific batteries’, ‘invest in the technology of tomorrow’. By using these example pushes the readers to look past their daily lives and in to the future. Pushing the readers to believe that we can grow as a society, through the funding space travel ‘Wake-up, Yvette’ by Dr Laikis, opens with a pun on Yvette’s title , suggesting that he must literally wake up from his dream, as it will only be a dream.  By using this humorous tone, draws his reader to believe that Yvette’s ‘dream’ absorbed and childish. He follows with ‘when did governments ever fund†¦ for peaceful purposes’, showing that his idea is also absurd. Dr Laikis points to a major flaw in Yvette’s argument. Even if countries wanted to explore space, it is very unlikely for every country to agree on the politics. This criticism, allows the reader to see how unlikely Yvette’s ‘dream’ may be. Dr Laikis finishes with an alternant ‘dream’; his dream is much closer to home. By doing this he reveals to the reader that we don’t need to look out in space to grow, but fix the problems on earth. Both Yvette and Dr Laikis were both persuasive, as they each positioned the reader to assume both were correct. Yvette persuaded by using a neutral tone, with many stories of what ‘could be’ if the government decided to fund the government. While Dr Laikis persuaded by using a sarcastic tone and mocking Yvette’s points while still pointing out their flaws. Yvette’s opinion piece was overall more persuasive as it had statistics and facts, while Dr Laikis was only his opinion.

Unemployment In Saudi Arabia And The Uk Economics Essay

Unemployment In Saudi Arabia And The Uk Economics Essay This essay will discuss a macroeconomic issue that affect to government economy. Understanding this issue is related to understand some general concept about the economic first. What is economic, what it divided to and how it related to government issues. Then after understanding these general ideas will focus on unemployment issue, what it is and how it affect to government economy. After that a comparison between unemployment in Saudi Arabia and unemployment in UK. In order to understand the issue in these countries using an analysis tool in necessary which will be PEST analysis in order to relies the reasons why that issue is important and the reason of it also. First of all what is economic, economics is a way to find how people lives process in that way which the live now. It is a measurement tool used by economics to know more about how people live. Also to find out the influences of some factors that could change these process to be better. Economics is mainly contain two part which are Macroeconomic and Microeconomic, and each part is focus on different way of study area. Macroeconomic is a field of study which related to governmental issues economy or globally and how economy fluctuate. The purpose of study macroeconomics in to understand and be able to analyze some issues such as national income, unemployment, inflation, rate of growth and price level. On the other hand, Microeconomics is discuss people decisions which related to the market. The aim of study Microeconomics is to define services and goods quantity and price, and also to discover the effect of government rules and taxes to the goods and services price, as an example of what Microeconomics study are cars prices and demand, telecom and electricity. In this essay will discuss one of Macroeconomic issue in two different countries which are Saudi Arabia and UK. The issue will focus on is unemployment, and the reasons of this issue. Then considering how it affect to the government economics. According to Donald Rutherford in his book Dictionary of Economics, he define unemployment as the stat of being part of a labor force, wanting to work, but without a job.( Rutherford, 1992, p. 473) Unemployment is defined as person who is available to work, looking for a job and does not have a job now. And some countries add more conditions to define person as unemployment, such as in Saudi Arabia mention that the person account as unemployment if the previous conditions apply on him and he accept the minimum rate of salary. And in UK they define unemployment as In the United Kingdom the definition of unemployment is someone who is in receipt of the jobseekers allowance (Parkin et al , 1997). Unemployment. Unemployment is a major problem that could affect to government economy, there are different side of that affect. Unemployment could affect to government policy, social relationships between people, economic growth, productivity and technology development. In this essay will use a tool to analyze this issue through the chosen countries and how it affect. PEST Analysis. PEST analysis based on four factors which are : Political : and it consist of governmental regulations and laws, government type and political change. Economic : which consist of growth, labor supply and labor costs. Social : and contains population growth, health and education. Technology : contain impact of technology and productivity. Unemployment in the United Kingdom. Unemployment in the UK actually is not a new problem or happen recently it started years ago and it fluctuated in high percentage to low percentage during 1855 to 1994. According to C.H.Feinstein, he mention that the percentages of unemployment in the UK changed from time to time. It reach the highest percentage in 1935 where it was 15% and almost 0% during 1945. Both of them have it own political reasons at that time. Political. There are many reasons that leads to unemployment, first political reasons: government always centralize the governmental organizations and businesses to be inside the big cities and rather than smaller one or rural side which affect that most people leave these village and move to live in big cities. And thatà ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ãƒ ¢Ã¢â‚¬Å¾Ã‚ ¢s affect to most businesses and market be only in big cities and then this country lose one or more of public sectors like education for example, and that what happen in the UK actually. Most of population be in big cities and the most of universities opened in big cities, then it will lead to lack of knowledge between people who lives in these places and cannot offer to let their children to lean in cities cause of expensive. Economic. Also there are economics reasons for unemployment in the UK, labor market are always linked with economy of these country. For example, the salary for employee in a rich country is different than other who could do the same job but in poor country. Employee lose their motivation to work because of the low payment and that affect to the company or organization productivity. Another economic reason of high percentage of unemployment is the credit crunch. Since the credit crunch happen and most of companies affected of it, they try hard to adjust their balance and the only way to do that is end a lot of their employee contract. The next chart shows that the percentages of unemployment is start to increase sharply when the world affected by credit crunch. http://www.tradingeconomics.com/Temp/United-Kingdom-Unemployment-Rate-Chart-000001.png?0b055430-d250-4215-93a4-27094745a09b Technology. Also the technology affect to spread the unemployment in United Kingdom in different ways. A lots of companies nowadays work hard to introduce machines to their company instead of human. The companies managers have their own point of view, the managers think that these electronic machines work more than the humans and at that time the productivity of the company will raise tribal. The human employee work 8 hours daily but these machines could work without break time or stop during 24 hours. Also the costs of this machines is lower than human and for future the expenses will reduce and the profit will increase and that what private sectors looking for. The new generations of robot employee will increase the rate of unemployment in UK. Social. Lora a student in a university were graduate recently from a law school. She works hard to find a job in a lawyer office, but unfortunately for her she graduate when the percentage of unemployment is high. As she not born in a rich family and cause of shortage of money she works in a clothes shop. Years after another trying hard to find a job that she looking for, but after a while she find herself stuck in the clothes shop because she cannot compete the new graduates law students. Previous example is shows how can unemployment affect socially, Lora found a solution for her problem in her way but others could not handle the unemployment like Lora. Rises of crime, alcoholism and violence are reflect of people who are jobless and have nothing to do. People who are unemployment and deal with this situation in wrong way by dealing a drug for example, easy money will be in their hand and they will never think of find a job but they will act in different way to try hard to make the worker be addict and then they will be a jobless cause they cannot do their job in the right way. If the unemployment increase the social problem will increase as will. Unemployment in the Saudi Arabia. Unemployment in Saudi Arabia in a new problem actually, the government did not face that huge increasing in unemployment like what happen recently. Unemployment rate in Saudi Arabia reach the highest percentage in Dec 2009 when reach almost 10.5 % , where the lowest percentage was during 1999 when reach 8.1 %. There are many reasons that affect to the unemployment to raise in Saudi Arabia. http://www.tradingeconomics.com/Temp/Saudi-Arabia-Unemployment-Rate-Chart-000002.png?cd318801-9e82-4d60-b5a6-41ce6853181e Political. Because of Saudi Arabia more than 50 % of its total area are desert, government did not make much effort to consider that the people who live in these areas are jobless. There is no industries inside these areas and those people who lived in desert which named Bedouins most of them are unemployment. They did not study or finish their graduation year cause of their culture enforce them to stay in their land to implant or raising camel through their childhood. They grown up and the time is change and they cannot depend on what their father used to do, but also they are not capable to work cause of lack of education. Economic. Saudi Arabia are like all other countries which affected by credit crunch, but because of the government regulations the private organizations cannot fired these employee before their contract will end. Then they companies use different way to reduce the number of the employee by adding more work to do for them. Actually that idea reduce the employee because most of them resign from work and also the company save more money than they expect. Many organization do that strategy and number of unemployment raise. Another reason of high percentage of unemployment is foreign labor. Some company hire a foreign labor cause of low cost of them and the high skills or professional employee can costs nothing comparing with local employee and with high experience in foreigner side. Technology. Technology is important in any organization in different way especially in industrial sectors. And because there are no much Saudis skilled employee who can work in these sectors, the organizations replace hiring Saudis with foreigner. Most of Saudis cannot handle to use technology in their work, not at this time actually, that raise the percentage of unemployment. Companies always looking to professionals in a way of reduce the cost of labor by using technology. Social.

Laboratorio de Metalurgia Física

Laboratorio de Metalurgia Fà ­sica 5.1.3 Practicas en el Laboratorio de Metalurgia Fà ­sica Preparacià ³n Metalografà ­a de Muestras  · OBJETIVO Iniciar al estudiante en la preparacià ³n metalografà ­a de muestras y anà ¡lisis de las mismas.  · INTRODUCCIÓN TEÓRICA: Bajo el nombre de metalografà ­a se engloban toda una serie de tà ©cnicas y conocimientos cientà ­ficos cuyo fin à ºltimo es la observacià ³n tanto macroscà ³pica como microscà ³pica de las caracterà ­sticas estructurales de los metales y aleaciones. La presente prà ¡ctica de laboratorio se basa exclusivamente en la preparacià ³n de muestras (llamadas probetas) para la observacià ³n microscà ³pica de materiales metà ¡licos, a travà ©s del uso del microscopio à ³ptico metalogrà ¡fico (MO).  · La preparacià ³n metalogrà ¡fica Involucra una serie de pasos para obtener una probeta con una superficie perfectamente plana y libre de rayas al observarse bajo el microscopio à ³ptico. Primero se comienza seleccionando una muestra adecuada, cortà ¡ndola para llevarla a un tamaà ±o conveniente y de ser necesario se embute en una resina polimà ©rica o se monta en un sujetador mecà ¡nico para facilitar su manipulacià ³n. Posterior a esto, la superficie debe esmerilarse y lijarse hasta lograr la planaridad y luego pulirse con ayuda de discos rotativos cubiertos de fieltro impregnados de una suspensià ³n abrasiva, para eliminar las marcas del esmerilado. El pulido, provee en la mayorà ­a de los casos una superficie brillante tipo espejo. La observacià ³n al microscopio de muestras no-metà ¡licas, sean materiales cerà ¡micos o materiales compuestos sigue (por lo general) las mismas etapas del proceso de preparacià ³n de muestras metà ¡licas, aunque frecuentemente se requieren de instrumentos de corte y abrasivos de mayor dureza. Las tà ©cnicas y conocimientos para la preparacià ³n de este tipo de muestras se engloban en el tà ©rmino petrografà ­a.  · DESARROLLO EXPERIMENTAL: Materiales y Equipos †¢ Muestras metà ¡licas †¢ Cortadoras de disco. †¢ Esmeril de Cinta. †¢ Papeles de lija. †¢ Pulidoras Rotativas. †¢ Microscopio Óptico. †¢ Dispositivo de captura de imà ¡genes. †¢ Alcohol. †¢ Algodà ³n y recipiente para guardar las probetas  · DESBASTE GRUESO. †¢ Esmerile, en la esmeriladora de cinta, la superficie de la muestra hasta obtener una superficie plana, cuidando de mantener un flujo constante de refrigerante. †¢ Una vez que la superficie a observar està © totalmente plana, lave la muestra con abundante agua. Limpie el equipo. No deje residuos de refrigerante en los alrededores.  · DESBASTE FINO v Comenzando por el papel esmeril de menor nà ºmero, desbaste la muestra movià ©ndola sobre el papel abrasivo en una misma direccià ³n, de manera recà ­proca. La direccià ³n del movimiento debe ser perpendicular a las huellas del desbaste grueso. El proceso culmina al deben desaparecer las huellas del desgaste grueso por la abrasià ³n efectuada, o equivalentemente, cuando toda la superficie de la probeta està © cubierta por rayas paralelas a la direccià ³n de movimiento. v Lave muy bien su muestra con agua y colà ³quela, sobre el siguiente papel de esmeril, de manera tal que las rayas anteriores sean perpendiculares a las nuevas rayas. Repita el paso anterior, hasta que està ©n borradas la totalidad de las rayas generadas en el paso anterior. Puede ir chequeando con regularidad la desaparicià ³n de las rayas observando al microscopio la superficie de la muestra. Asegà ºrese de secar muy bien la muestra antes de colocarla en el microscopio, para ello enjuà ¡guela con alcohol Repita el paso anterior hasta llegar al papel esmeril de menor nà ºmero. v Al finalizar, lave muy bien la probeta, con abundante agua y sus manos con agua y jabà ³n. Limpie con un paà ±o la mesa de lijas, asegà ºrese de no dejar charcos de agua luego de finalizado su trabajo.  · PULIDO Este es uno de los pasos mà ¡s crà ­ticos de la preparacià ³n metalogrà ¡fica, por lo tanto antes de comenzar, lave muy bien con abundante agua el paà ±o que va a utilizar, para evitar la presencia de restos de metal o abrasivos que puedan estropear su proceso de pulido. v Agregue una pequeà ±a cantidad del abrasivo de tamaà ±o de partà ­cula mà ¡s grueso (suspensià ³n de alà ºmina de 1 micrà ³n, generalmente) al paà ±o de pulido y gradà ºe el grifo hasta tener un goteo de agua constante. v Coloque la muestra sostenià ©ndola firmemente sobre el disco rotatorio ejerciendo una presià ³n moderada, para asegurar un pulido parejo y evitar que la probeta sea proyectada por el movimiento del disco. v La probeta debe moverse suavemente desde la periferia hacia el centro del paà ±o y viceversa. Tambià ©n puede girarse en sentido contrario al movimiento del disco. La tà ©cnica y destreza para efectuar el pulido dependerà ¡ en gran parte de la muestra en estudio. v Pida la opinià ³n de su instructor y de ser necesario (la mayorà ­a de las veces lo es) pase a otro paà ±o y continà ºe el pulido con abrasivo de tamaà ±o de partà ­cula mà ¡s fino (suspensià ³n de alà ºmina de 0,3 micrones, generalmente) o con algà ºn otro tipo de abrasivo, esto dependerà ¡ de la muestra que usted està © preparando. v Una vez que su muestra haya alcanzado una superficie plana tipo espejo, là ¡vela con abundante agua, rocà ­ela con alcohol, evitando la presencia de rastro alguno de humedad que pueda crear confusià ³n al momento del anà ¡lisis microscà ³pico. Una vez mà ¡s colabore con el mantenimiento del laboratorio y limpie, con un trapo, todo resto de agua y de suspensià ³n abrasiva que su trabajo haya podido dejar. v Observe su muestra pulida al microscopio, esta observacià ³n, dependiendo de la aleacià ³n, puede ser de significativa importancia a la hora de observar ciertos aspectos microestructurales, tales como ciertas fases e inclusiones, asà ­ como otros defectos propios del material (grietas y porosidades) e inclusive defectos generados en la etapa de pulido (colas de cometa y rayas). PRACTICA NO. 12 Ataque quà ­mico y microscà ³pica à ³ptica.  · OBJETIVOS †¢ Introducir al estudiante en la tà ©cnica del ataque quà ­mico como herramienta para revelar la microestructura de probetas preparadas metalogrà ¡ficamente. †¢ Conocer las partes constituyentes, usos y cuidados del Microscopio Óptico (MO)  · INTRODUCCIÓN TEÓRICA: Sin duda, desde el punto de vista cientà ­fico-tà ©cnico, el aliado mà ¡s importante del ingeniero de materiales es el microscopio, debido a que gracias a à ©l, se puede observar la microestructura, responsable directa del comportamiento mecà ¡nico y fisicoquà ­mico de los materiales. El microscopio utilizado para el anà ¡lisis microestructural de materiales se denomina microscopio à ³ptico metalogrà ¡fico (MO), el cual difiere de los microscopios comunes, en que funciona con luz reflejada sobre la muestra y no con luz transmitida a travà ©s de à ©sta. Luego del pulido, la microestructura del material se ve ocultada por una pequeà ±a capa de metal distorsionado y plà ¡sticamente deformado, que puede ser disuelto a travà ©s del uso de diversas sustancias quà ­micas, denominadas reactivos, las cuales actà ºan generando un proceso de corrosià ³n selectiva que permite, dependiendo del caso, hacer visibles aspectos microestructurales tales como los là ­mites de grano y las diferentes fases que conforman una aleacià ³n.  · PREPARACIÓN PREVIA: Antes de realizar la prà ¡ctica el estudiante debe indagar sobre los siguientes aspectos relacionados con el desarrollo de la misma: v Teorà ­a del ataque quà ­mico y reactivos quà ­micos mà ¡s usuales para el ataque de aleaciones ferrosas y no ferrosas. v Toxicidad y manejo de los reactivos indagados. v Teorà ­a del funcionamiento del microscopio metalogrà ¡fico y sus diferencias con el microscopio biolà ³gico. v Usos, partes constituyentes y cuidados del microscopio metalogrà ¡fico. Se recomienda ademà ¡s que el estudiante venga al momento de la prà ¡ctica preparado con suficiente algodà ³n para preservar su probeta, asà ­ como tambià ©n con un recipiente apropiado para resguardarla. Deberà ¡ tambià ©n procurarse un par de guantes de là ¡tex, de tipo cirujano, para las labores de ataque quà ­mico.  · DESARROLLO EXPERIMENTAL: Materiales y Equipos: †¢ Muestra (s) metà ¡lica (s) pulida (s). †¢ Reactivos quà ­micos. †¢ Pinzas para sujecià ³n de probetas. †¢ Guantes de Là ¡tex. †¢ Microscopio Óptico. †¢ Alcohol. †¢ Algodà ³n y recipiente para guardar las probetas.  · Procedimiento Experimental: . Ataque quà ­mico de la superficie pulida y observacià ³n al microscopio. Este es otro de los aspectos crà ­ticos de la preparacià ³n metalogrà ¡fica, y el que quizà ¡ requiere de mà ¡s cuidados a la hora de ser implantado. Cuà ­dese de evitar el contacto de los reactivos quà ­micos con su piel o con los ojos y utilice guantes de là ¡tex y pinzas para sujetar la probeta mientras la sumerge en los reactivos de ataque. Evite la aspiracià ³n de los gases generados durante la reaccià ³n de ataque y trate en lo posible de trabajar dentro de la campana de gases. †¢ Ataque su muestra con el reactivo que usted haya seleccionado de acuerdo a las caracterà ­sticas de su muestra. Existen varias tà ©cnicas, pero puede hacerlo por inmersià ³n de la superficie pulida en el reactivo, o pasando delicadamente un algodà ³n impregnado del reactivo sobre la superficie. Si tiene alguna duda plantà ©esela al instructor. †¢ Una vez completado el tiempo de ataque, lave cuidadosamente su muestra bajo el chorro de agua, rocà ­ela con alcohol. †¢ Observe la muestra al microscopio y si à ©sta resulta sobreatacada, repita el proceso de desbaste fino (lijado) desde el à ºltimo papel (grano mà ¡s fino) y vuelva a pulir en los paà ±os su muestra. Vuelva a atacar acortando el tiempo del proceso. Si la pieza resulta subatacada, sà ³lo tiene que continuar el ataque por mà ¡s tiempo. †¢ Observe muestra al microscopio bajo supervisià ³n del instructor, con ayuda del encargado del laboratorio y fundamentà ¡ndose en el criterio que debe haber desarrollado a la luz de sus conocimientos y de su preparacià ³n previa a la prà ¡ctica. PRà CTICA NO. 13 ENSAYO JOMINY * Objetivos 1.1 Aplicar el Mà ©todo Jominy para determinar la templabilidad de los aceros. 1.2 Interpretar los resultados del Ensayo Jominy. Aplicar estos resultados en la clasificacià ³n de los aceros en funcià ³n de la templabilidad. 1.3 Determinar el perfil de temperaturas y de velocidades de enfriamiento. 1.4 Relacionar las velocidades de enfriamiento con las microestructuras obtenidas en las diferentes zonas de la probeta Jominy. 1.5 Evaluar la eficiencia del sistema enfriante y corroborar la validez del ensayo Jominy. * Pre-laboratorio: Antes de realizar la prà ¡ctica el estudiante debe indagar sobre los siguientes aspectos, relacionados con el desarrollo de la misma. 3.1 Curvas Jominy para el acero a ser ensayado. 3.2 Influencia de los elementos de aleacià ³n en la templabilidad de los aceros. 3.3 Relacià ³n entre el Ensayo Jominy y las curvas tiempo temperatura transformacià ³n. 3.4 Factores que afectan a los ensayos de dureza y escala de dureza a utilizar. 3.5 Quà © puntos realmente interesan de la curva Jominy. 3.6 Caracterà ­sticas de las transformaciones perlà ­ticas y martensà ­ticas. 3.7 Caracterà ­sticas del Ensayo Jominy.  · Materiales Una probeta Jominy de acero AISI 1045, de dimensiones estandarizadas de acuerdo a la norma ASTM. Adicionalmente, à ©stas deben estar perforadas sobre la superficie opuesta al extremo a ser templado. * Procedimiento En el Laboratorio de Tratamientos Tà ©rmicos: Se introduce la probeta Jominy en el horno de tratamiento tà ©rmico, el cual ha sido precalentado a la temperatura de austenizacià ³n adecuada. La temperatura y el tiempo de permanencia de la probeta en el horno debe haber sido especificados y determinados por Ud. Recuerde: El cà ¡lculo adecuado de las variables de operacià ³n en este caso; temperatura y tiempo, influyen en forma determinante en los resultados del ensayo. Luego de haber transcurrido el tiempo de mantenimiento, extraiga rà ¡pidamente la probeta del horno y colà ³quela en el sostà ©n de la cuba Jominy. Anteriormente debe haber comprobado que dicha cuba cumple con todos los requisitos establecidos en la norma. Realice el enfriamiento durante el tiempo estipulado en la norma antes mencionada. Una vez transcurrido el tiempo de ensayo, retire la probeta del sostà ©n y termà ­nela de enfriar en agua. 5.1.4 Practicas en el Laboratorio de Maquinas-Herramientas CILINDRADO INTERIOR EN EL TORNO Objetivo Hacer un agujero de un dià ¡metro y longitud determinada a una pieza metà ¡lica Materiales y equipos Pieza metà ¡lica Broca Mandril Cuchilla para trabajar interior Refrigerante (taladrina) Torno Procedimiento 1 º Se coloca la pieza en el plato 2 º Se gradà ºa el torno a la velocidad adecuada 3 º Se monta el mandril en el cabezal mà ³vil y luego se coloca la broca en el mandril 4 º Se lleva el cabezal mà ³vil hasta que la punta de la broca roce el centro de la pieza 5 º Se acciona la palanca de arranque del torno y con una manivela que tiene el cabezal mà ³vil en la parte posterior se le da profundidad del agujero que se desea hacer; el ancho del agujero lo determina el dià ¡metro de la broca o la cantidad de corte que se le de al agujero con la cuchilla de interior FRESADORA La fresadora es una mà ¡quina herramienta en la cual la pieza està ¡ fija y la herramienta es la que gira para efectuar el corte. 1. Base 2. Cuerpo 3. Caja de cambio ce avances 4. Palanca para el cambio de los avances 5. Caja de cambio de velocidades 6. Tirante para la fijacià ³n del eje portafresa 7. Eje principal 8. Palanca para el cambio de las velocidades 9. Puente 10. Volante para el desplazamiento del puente 11. Eje portafresa 12. Soporte intermedio del eje portafresa 13. Guà ­as del puente 14. Soporte extremo del eje portafresa 15. Riostras 16. Ranura central de la mesa 17. Manivela para traslacià ³n horizontal de la mesa 18. Mesa 19. Guà ­as de la mesa 20. Volante para el desplazamiento transversal de la mesa 21. Volante para la traslacià ³n horizontal de la mesa 22. Guà ­as para el carro portamesa 22. Manivela para la traslacià ³n vertical de la mà ©nsula 23. Carro portamesa 24. Manivela para la traslacià ³n vertical de la mà ©nsula 25. Palanca para el desplazamiento automà ¡tico transversal y horizontal de la masa 26. Columna soporte de la mà ©nsula 27. Palanca para la fijacià ³n de la mà ©nsula 28. Palanca para la inversià ³n de avance 29. Husillo para la traslacià ³n vertical de la mà ©nsula 30. Mà ©nsula 31. Guà ­a para la mà ©nsula 32. Eje de transmisià ³n de los avances FRESAS Las fresas tienen formas algo complicadas y puede decirse que està ¡n compuestas por un conjunto de elementos, cada uno de los cuales intervienen en diferente medida en el corte del material. Los distintos elementos de las fresas se designan con tà ©rminos tà ©cnicos que, en conjunto, forman la nomenclatura o terminologà ­a de las fresas. Varios de ellos pueden ser: Cuerpo de la fresa Arista de corte Periferia Dià ¡metro Caras y ancho de las fresas Cara del diente o cara del corte Cara de incidencia à ngulo de incidencia à ngulo de desprendimiento de viruta à ngulo de filo à ngulo de hà ©lice Prà ¡ctica NO. 20 FRESADO PLANO Objetivo Hacer una pieza con una cara plana Materiales y equipos Barra de aluminio Fresa frontal de dos cortes Refrigerante Fresadora Procedimiento 1 º Se monta una prensa o tornillo de sujecià ³n en la mesa de la fresadora y se sujeta la barra en la prensa 2 º Se monta la fresa en el eje porta fresas 3 º Se gradà ºa la velocidad en la caja de cambio de velocidades 4 º Con la manivela para la traslacià ³n vertical de la mensura se le da la profundidad de corte a la pieza 5 º Con el volante para la traslacià ³n horizontal de la mesa se procede a darle el corte a la pieza Los pasos 4 y 5 se repiten hasta que la pieza llegue al grosor deseado. Nota: Este procedimiento se emplea tambià ©n para el fresado frontal y para una combinacià ³n de ambos al mismo tiempo (fresado plano y frontal). Lo à ºnico que cambia es el emplear la fresadora. RANURA EN FORMA DE V Objetivo Hacer un canal en forma de V a lo largo de toda la pieza Materiales y equipos Pieza rectangular Fresa angular doble Refrigerante Fresadora Procedimiento 1 º Se sujeta la pieza a la mesa de la fresadora 2 º Se monta la frase angular doble en el eje porta fresas 3 º Se gradà ºa la velocidad en la caja de cambio de velocidades 4 º Con la manivela para la traslacià ³n vertical de la mà ©nsula se le da la profundidad de corte a la pieza 5 º Se acciona la palanca para el desplazamiento automà ¡tico horizontal de la mesa y se efectà ºa el corte a lo largo de la pieza Nota: Este procedimiento es el mismo a seguir para las siguientes operaciones: Hacer una ranura semicircular Hacer tornos de seccià ³n semicircular Hacer chaveteros Hacer ranuras en forma de T Hacer ranuras en cola de milano La à ºnica diferencia que hay entre estas operaciones es la forma de la fresa. Prà ¡ctica NO. 22 ENGRANAJE Objetivo Hacer un pià ±Ãƒ ³n o engranaje Materiales y equipos Barra de aluminio Cuchilla para cilindrar Fresa de modulo Refrigerante Torno Fresadora Mandril Broca Procedimiento 1 º Se coloca la barra en el plato del torno 2 º Se monta la cuchilla para cilindrar en la torre en forma para cilindrar 3 º Se gradà ºa la velocidad en la caja de cambio y la profundidad de corte en el carro transversal 4 º Se acciona la palanca de arranque y se procede a trabajar la pieza con el carro longitudinal hasta llegar al dià ¡metro requerido para el pià ±Ãƒ ³n o engranaje 5 º Se coloca la cuchilla en posicià ³n para refrentar y se procede a hacer dicho operacià ³n hasta llegar al espesor requerido 6 º Se hace un agujero pasante en el centro de la pieza de dià ¡metro que ajuste en el eje que va a ser montado el pià ±Ãƒ ³n. Este agujero se hace con una broca montado en un mandril el cual va montado en el cabezal mà ³vil 7 º Se desmonta la pieza del torno y se fija en el divisor que està ¡ sobre la mesa de la fresadora 8 º Se coloca la fresa de mà ³dulo en el eje porta fresa y se gradà ºa la velocidad y la profundidad de corte 9 º La cara plana de la pieza debe quedar perpendicular a la fresa 10 º Con los cà ¡lculos obtenidos de antemano se procede a trabajar la pieza. Despuà ©s del primer corte se debe de dar el nà ºmero de vueltas necesario al plato divisor, para dar el segundo corte y formar el primer diente; este à ºltimo procedimiento se realiza hasta que todos los dientes queden formados LIMADORA Prà ¡ctica No. 23 Objetivo Hacer una pieza de superficie plana 1. Mesa (Con letras A, B, C y D) Materiales y equipos Una barra de acero Una cuchilla Refrigerante (aceite o taladrina) Limadora Procedimiento 1 º Se fija la pieza en la mesa 2 º Se gradà ºa el avance de la mesa, la profundidad de corte y el nà ºmero de golpes del cabezal o carnero 3 º Se repite el nà ºmero de corte hasta llegar a la longitud y el espesor requerido Prà ¡ctica No. 24 Objetivo: Hacer un maquinado[1] en la fresadora CNC Procedimiento: La seguridad primero * Asegà ºrese de que todos saben dà ³nde està ¡ y cà ³mo se activa el botà ³n de parada de emergencia * Nunca deje objetos extraà ±os en el à ¡rea de maquinado (calibres, cepillos, latas de lubricantes, piezas ya maquinadas, etc.) * En ninguna circunstancia trate de acceder a la zona de maquinado mientras haya partes en movimiento * Use las herramientas provistas para ajustar puntas y fresas. La secuencia de operaciones: 1. Comience la ejecucià ³n con el software de maquinado, en realidad virtual (VRT o VRM) 2. Cargue, cree o edite su programa de CNC 3. Actualice la configuracià ³n de herramientas que tiene cargada el software 4. Simule el programa de maquinado en 2D o 3D (aunque es menos vistosa, la simulacià ³n en 2D es sumamente à ºtil y clara) 5. Encienda su mà ¡quina de CNC 6. Lleve los ejes a la posicià ³n de reposo (desde la lengà ¼eta Home) 7. Prepare las herramientas de la mà ¡quina, de manera que se correspondan con la configuracià ³n que cargà ³ en el software 8. Cargue la pieza de materia prima en el plato o banco 9. Ajuste el offset de la pieza y las herramientas Ejecute el maquinado Practica NO. 25 Objetivo: Hacer un torneado cà ³nico en el torno CNC Procedimiento: Funcionamiento del ciclo G81 en cada paso de torneado. Forma en la que se realiza cada paso de torneado: * 1-2: Desplazamiento en avance rà ¡pido (G00). * 2-3: Desplazamiento al avance programado en G01. * 3-4: Si se programa el parà ¡metro D, el desplazamiento es en avance rà ¡pido (G00) Si no se programa el parà ¡metro D, el desplazamiento es al avance programado en G01, siguiendo el perfil (este es nuestro caso). 4-5: Desplazamiento de retroceso en avance rà ¡pido (G00). Practica NO.26 Objetivo: Hacer un torneado de tramos curvos Introduccià ³n: Funcionamiento general del ciclo fijo G84. * Este ciclo realiza el cilindrado de un tramo curvo. * El tramo se definirà ¡ programando los valores de los diferentes parà ¡metros que componen el ciclo (los parà ¡metros se explican en mà ¡s adelante). * El ciclo mantiene el paso de profundidad especificado entre las sucesivas pasadas del cilindrado. * El ciclo realiza el cilindrado en desbaste y permite seleccionar, si se desea realizar una pasada de acabado con la misma herramienta tras finalizar el desbaste o no. Forma en la que se realiza cada paso de torneado: * 1-2: Desplazamiento en avance rà ¡pido (G00). * 2-3: Desplazamiento al avance programado en G01. * 3-4: Si se programa el parà ¡metro D, el desplazamiento es en avance rà ¡pido (G00). Si no se programa el parà ¡metro D, el desplazamiento es al avance programado en G01, siguiendo el perfil (este es nuestro caso). * 4-5: Desplazamiento de retroceso en avance rà ¡pido (G00). TALADRADORA Prà ¡ctica: 27 Objetivo Hacer un agujero a una plancha de metal Materiales y equipos Plancha de metal Broca Mandril Prensa o tornillo de sujecià ³n Refrigerante Taladradora Procedimiento 1 º Se monta el mandril en el eje principal y la broca en el mandril 2 º Se monta la prensa en la mesa superior y la plancha se sujeta en la prensa 3 º Con el volante para el avance sensitivo se procede a hacer el agujero Esmerilado: Es un proceso de remocià ³n de material en el cual las partà ­culas abrasivas està ¡n contenidas en una rueda de esmeril que opera a velocidad superficial muy alta. La rueda de esmeril tiene forma de disco balanceado con toda precisià ³n para soportar altas velocidades de rotacià ³n. Mà ©todo de Ruta Critica[2] para el cà ¡lculo de las actividades en el Laboratorio. El anà ¡lisis comienza con una descripcià ³n del proyecto en tà ©rmino de de actividades y eventos. A- Comienzo de obtencià ³n de materiales B- Terminacià ³n de obtencià ³n de materiales pieza 1 C- Terminacià ³n de obtencià ³n de materiales pieza 2 D- Terminacià ³n de trabajo de mà ¡quina pieza 1 E- Terminacià ³n de trabajo de mà ¡quina pieza 2 F- Comienzo de ensamble G- Terminacià ³n de ensamble H- Terminacià ³n de inspeccià ³n y prueba Este modelo puede variar dependiendo del tipo de pieza Control de Calidad en Cada Prà ¡ctica El control[3] incluye una secuencia universal de pasos: v Elegir un sujeto de control v Seleccionar una unidad de medida v Establecer una meta para el sujeto de control v Seleccionar un sensor v Medir el desempeà ±o real v Interpretar la diferencia entre està ¡ndar y real v Realizar una accià ³n sobre esa diferencia [4]Proceso de Produccià ³n El proceso de produccià ³n es el procedimiento tà ©cnico que se utiliza en el proyecto para obtener los bienes y servicios a partir de insumos, y se identifica como la transformacià ³n de una serie de insumos para convertirlos en productos mediante una determinada funcià ³n de produccià ³n. Conclusiones: Las prà ¡cticas presentadas cumplen con el marco de referencia educativo dominicano que tiene como funcià ³n garantizar la eficiencia y la eficacia global del mismo. Se ha tomado en cuenta la evaluacià ³n de los procesos docentes y los servicios que intervienen en la actividad educativa para satisfacer las necesidades de la sociedad: v El rendimiento de los aprendizajes alcanzados por los estudiantes; v El grado de coherencia alcanzado entre los fines educativos, las estrategias para alcanzarlos y los resultados; v La inversià ³n de recursos, su racionalidad y adecuacià ³n que garanticen la puesta en prà ¡ctica de la accià ³n educativa; v El peso de la innovacià ³n, la investigacià ³n y la experimentacià ³n educativas; v Las caracterà ­sticas socioeconà ³mica, afectiva, fà ­sica y social del alumno; v Las caracterà ­sticas personales y profesionales de los educadores, la calidad de vida y las facilidades de que dispongan; v La programacià ³n acadà ©mica, los contenidos curriculares y los materiales didà ¡cticos, deben estar en constante actualizacià ³n; v Los procesos de aprendizaje. v Las condiciones fà ­sicas desde el punto de vista del ambiente en que se desarrolla la actividad educativa, incluyendo aulas, laboratorios, bibliotecas, canchas deportivas, à ¡reas de recreacià ³n, servicios de agua potable e iluminacià ³n y equipamiento; v El grado de compromiso y la intervencià ³n de la familia, el hogar y la comunidad en el proceso educativo; v La orientacià ³n educativa y profesional; La investigacià ³n educativa que se aplica para identificar los problemas del sistema y adoptar los correctivos a los mismos. v Se deberà ¡n integrar las prà ¡cticas de corto tiempo para que se puedan ejecutar todas las prà ¡cticas durante el semestre ya que el nà ºmero de prà ¡cticas excede al nà ºmero de semanas. 6. Administracià ³n de las Adquisiciones del Proyecto El conjunto[5] de actividades comprendidas en el quehacer de la funcià ³n adquisiciones conforman, normalmente, el segundo bloque de la là ­nea crà ­tica en proyectos complejos. En un sentido amplio, su tarea consiste n abastecer la obra con todos los elementos necesarios (maquinaria, equipos, repuestos, instrumentos, instalaciones, suministros de construccià ³n y servicios), en las condiciones de costo, calidad y oportunidad, requeridas por el proyecto. Una caracterà ­stica sobresaliente de las adquisiciones es su estrecha interrelacià ³n con las demà ¡s funciones, sobre todo en proyectos intensivos en bienes de capital de origen importado, tecnolà ³gicamente complejos, con programacià ³n acelerada (ruta rà ¡pida) o financiamientos condicionados. Las formas en que es posible abordar el abastecimiento de maquinarias, equipos y suministros, son variadas, si se tiene en cuenta el tamaà ±o del proyecto, la existencia y confiabilidad de los servicios de la organizacià ³n perm anente, la complejidad de las adquisiciones, y la modalidad que se defina para los contratos de construccià ³n. Diseà ±o de Formularios y Mecanismos de Control Adquisicià ³n de equipos El laboratorio[6] debe disponer de polà ­tica y procedimiento para la seleccià ³n y adquisicià ³n de los equipos, que incluya: * Especificacià ³n de las caracterà ­sticas necesarias, de acuerdo con los requisitos de tolerancias e incertidumbres. * Seleccià ³n y evaluacià ³n de los proveedores. El laboratorio debe evaluar a los proveedores y mantener un registro de estas evaluaciones. Es recomendable, siempre que sea posible, seleccionar los suministradores que cumplen con la Norma UNE-EN ISO/IEC 17025 o que tienen implantado un sistema de calidad acorde, por ejemplo, con las normas ISO 9000. * Requisitos solicitados al proveedor, tales como: documentacià ³n, certificado de calibracià ³n o verificacià ³n, periodo de garantà ­a, periodo de entrega, etc. En la adquisicià ³n de los equipos nuevos el laboratorio deberà ­a exigirle, a los fabricantes o distribuidores, la disponibilidad del Manual de Instrucciones del equipo en espaà ±ol. * Anà ¡lisis de las ofertas frente a las especificaciones y seleccià ³n de los equipos. Todas las actividades, relacionadas con la compra de los equipos y materiales, convienen documentarlas y archivarlas. Recepcià ³n de equipos Cuando el laboratorio recibe el equipo o material debe constatar, en primer lugar, que: * Se corresponde con las caracterà ­sticas y especificaciones del pedido o solicitud de adquisicià ³n, * Va acompaà ±ado de la documentacià ³n adecuada y completa (por ejemplo los certificados de calibracià ³n o conformidad, si son necesarios). * El laboratorio debe tener establecido un procedimiento que * Asegure que los equipos recibidos no sean utilizados o puestos en * servicio hasta que: * Se haya comprobado que no han sufrido ningà ºn daà ±o y funcionan * correctamente, * Hayan sido calibrados o verificados, cuando se considere necesario, * De que cumplen las especificaciones requeridas, debiendo mantenerse un registro de las medidas adoptadas para comprobarlo. Los equipos recibidos, cuando ya està ©n disponibles o instalados para realizar la funcià ³n para la cual han sido adquiridos, deben darse de alta, codificarse y etiquetarse, y ser incluidos en el inventario de los equipos disponibles del laboratorio. Inventario y codificacià ³n de equipos El inventario o listado (o base de datos) de los equipos disponibles debe incluir, como mà ­nimo, los equipos utilizados para realizar ensayos y/o calibraciones que tengan una relacià ³n directa con los resultados, asà ­ como aquellos equipos auxiliares que requieren de algà ºn tipo de control, mantenimiento, verificacià ³n o calibracià ³n. En el inventario deberà ¡ constar la fecha de su elaboracià ³n y, como mà ­nimo, el cà ³digo del equipo, la denominacià ³n del equipo, la marca, el modelo, el no. de serie, y la fecha de alta. El cà ³digo del laboratorio debe identificar al equipo de forma univoca y permitir relacionarlo con la documentacià ³n que se va generando (etiquetas, ficha/registro, procedimientos de funcionamiento, de mantenimiento y calibracià ³n, registros de datos, certificados de calibracià ³n, diarios de uso, etc.) y con su historial a lo largo de los aà ±os (averà ­as, sustituciones, modificaciones, etc.). El laboratorio debe mantener actualizado el inventario de los equipos disponibles, para ello serà ¡ necesario establecer un procedimiento del control y/o comunicacià ³n (por ejemplo, mediante impresos) de las altas, bajas o traslado