The parameters affecting the friction head losses in lateral defined in dimensionless terms using Buckingham’s Π theorem. Two mathematical models were developed to predict the friction head losses in lateral equipped with on-line and integrated built-in emitters. Laboratory experiments were conducted to measure friction head losses for emitter spacing from 0.3 to 2.4 m, pipe inner diameter 13.1, 15.6, and 17 mm, protrusion barb area 14.49, 21.375, 28.78 mm2 (for on-line emitters), emitter cylinder length from 30 to 68 mm, and emitter inner diameter from 11.2 to 15.5 mm (for built-in emitters) at values of Reynolds number varied from 6000 to 21000. The accurate design of drip irrigation laterals needs to determine the total energy losses that include the pipe friction losses along the lateral line and minor losses due to emitter connections. This study concerns the factors affect friction head losses in lateral line and to establish the relationship between them. Inadequate mathematical models may lead to an underestimation of head losses calculations. Mathematical modeling considered as one of the influencing means for drip irrigation improvement to develop efficient and economical system designs. The user also has complete control over the browser and the web itself. The user can multitask with the availability of multiple tabs. With the Vlite web browser, the user is capable of changing the fonts as well as the color. Visual studio allows you to create several types of projects including windows form application which was used for the Vlite browser, console application, ASP.net as well as C# and F# projects. Visual allows greater access to system resources, Object inheritance, Garbage collection and Better management. net is the Integrated Development Environment (IDE) for the visual. net is an object oriented programming language i.e. net language to support the global community of browsing and surfing the internet. The Vlite web browser is designed with the use of visual studio. Hence, this project make use of miniature version of web which minimized data consumption and notify the user if there is need to allow some background process to make use of data. Due to high consumption of data by most web browser in existence either for background processes that the user is not accessing or not aware which leads to a data waste. References to the System and assemblies.ABSTRACT A web browser is an application software or program designed to enable users to access, retrieve and view documents and other resources on the internet. += new System.EventHandler(this.openToolStripMenuItem_Click) Ī MenuStrip control on Form1 named menuStrip1, and a MenuStrip control on Form2 named menuStrip2. Private Sub openToolStripMenuItem_Click(sender As Object, e As _ĮventArgs) Handles openToolStripMenuItem.Click Place code similar to the following code example in the &Open ToolStripMenuItem to register the event handler. Set the parent form of the child window. Private void openToolStripMenuItem_Click(object sender, EventArgs e) 'Set the parent form of the child window. Private Sub openToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles openToolStripMenuItem.Click Within the event handler, insert code similar to the following code example to create and display new instances of Form2 as MDI children of Form1. Set the MergeAction property of the &Special, Command&1, and Command&2 menu items to Append.Ĭreate an event handler for the Click event of the &Open ToolStripMenuItem. Set the Visible property of the Form1 MenuStrip to false.Īdd a top-level menu item to the Form1 MenuStrip and set its Text property to &File.Īdd a submenu item to the &File menu item and set its Text property to &Open.Īdd a form to the project, add a MenuStrip to the form, and set the AllowMerge property of the Form2 MenuStrip to true.Īdd a top-level menu item to the Form2 MenuStrip and set its Text property to &Special.Īdd two submenu items to the &Special menu item and set their Text properties to Command&1 and Command&2, respectively. To append a menu item to an MDI parentĬreate a form and set its IsMdiContainer property to true.Īdd a MenuStrip to Form1 and set the AllowMerge property of the MenuStrip to true. Closing the MDI child window removes the appended menu from the MDI parent.Īlso see Multiple-Document Interface (MDI) Applications. The following procedure uses the IsMdiContainer, AllowMerge, MergeAction, and MergeIndex properties to append the MDI child menu to the MDI parent menu. In that case, you want to update the contents of the MDI parent's menu with the contents of the MDI child's menu as MDI child windows of different kinds are activated. For example, the MDI parent might be a spreadsheet, and the MDI child might be a chart. In some applications, the kind of a multiple-document interface (MDI) child window can be different from the MDI parent window.
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