Items on the Screen

Items that we place on the Probe screen can be moved with the same techniques we use to move items in Capture. We will first move the text Regulator Output Voltage. Click the left mouse button on the text Regulator Output Voltage. The text should turn red, indicating that it is selected. Next, click and drag the selected text to a new location  

Position the text in a convenient location and release the mouse button to place the text  

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We can now move any of the items on the screen. The steps for moving any item are the same as shown in Section 2.J. 

Touch sensitive screens are another mechanism for indicating a choice of items on the screen. It is a course device, with the limit to its resolution governed by the size of a finger, rather than electromechanical constraints in the previous devices. The method of interaction is to point to and/or touch the object or menu item on the screen. 

A tablet is a device for placing selectable menus or modules on a separate, peripheral plate. It is helpful for a user of CAD software to have all the modules available displayed on the screen for selection. The only drawback in such an arrangement is that it takes away a portion of the screen space and therefore less space is available for the actual CAD activities. Selection of an item from a tablet can be made with a mouse or light pen (Fig. 4). 

When you have a clipping circuit, as in the last example, a transfer curve may be desired. This can easily be done by changing the x-axis. A transfer curve usually plots VQ versus Vjn, so we need to change the x-axis from Time to VQ/IN). We must first delete the trace VflfINl from the plot above. Click the LEFT mouse button on the text V/VIN). The text will appear in red, indicating that it has been selected. Once the trace is selected, press the DELETE key to delete the trace. You can delete the other text items and lines on the screen using the same method. Click the LEFT mouse button on an item to select it and then press the DELETE key to delete it. You should have a screen with a single trace ... 

Such men who are untrustworthy, soclopathlc, grossly disturbed or pathologic or have criminal history or a history of recurrent, severe or recent psychotic episodes should not be selected as volunteers and if they arrive at Edgewood, should be returned to their home station. This decision should ordinarily be made during the initial screening upon the basis of severe distortion of MMPI scores or very bizarre or unappropriate items on the history or questionnaire tests. 

All changes to the processed data set are registered in a special history file. This file can be inspected and, if required, changed by means of the History... menu item. On activating this command a history dialog box appears on the screen with options for saving and printing. 

The user-friendliness is enhanced by the context-sensitive help, available in all modes of processing. The help window may be permanently present on the screen (reducing the part of the screen used for draw/display of structures) or it may be called in only when actually needed. When the help window is opened, its contents are updated automatically with the selection of menu and submenu items. 

Another device involved in the input of data is the mouse (or, generically, the pointer device, since many people use trackballs or touch pads instead of mice). The mouse changes the position of a pointer on the screen relative to the position of the mouse. It is used to select menu options and other items within Graphical User Interfaces (GUIs). 

A special tutorial instructs students in the use of the mouse prior to the onset of SPS instruction about story problems. Students move into the SPS instruction only when they have demonstrated competent use of the mouse. The mouse tutorial takes only about 5 min. It explains to the student how to move the cursor on the screen by moving the mouse, and it gives the student practice in making menu selections and in moving items around on the screen. At the end of the tutorial, the student completes a short exercise using the skills just learned. If the student appears to have trouble manipulating objects on the screen, the tutorial provides additional practice. 

Once you get the desired graph on the screen, you probably want to make a hard copy. To print, hit the SPACE key to bring up the graph customization dialog box shown above. Notice the "Print" and "Printer Setup" items on the bottom line of the dialog. To print, you move the cursor over the "Print" item and hit the ENTER key. ChemSep will send the graph to the printer identified by the "Printer Setup" menu. 

Tliese devices drive a cursor on the screen for selecting menu items and placing pieces of structure on the screen. A mouse, now available through mail order houses for about 100, is strongly recommended for ease of use. Aside from the input device, the two versions are identical in every respect... 

The operation of the system was almost completely driven by using the TOUCHPEN to select a menu item from a box on the screen or by touching a place on the screen where an atom was to be drawn. 

The registration of the activities during the woik session utilized video technology. One camera recorded the progress of work on the screen of the CAD system or on the drawing board, respectively the second camera recorded the overall workplace. Both pictures were mixed, recorded on one tape, and coded with a list of items afterward. On the one hand, an analysis along these lines enabled us to create a profile of the actual stress components, on the other hand, it made possible the identification of strain outcomes, for example in identifying error occurrences. 

In each of these alternative pointing devices, input to the pointing device moves a pointer on the screen. Once the pointer is moved to the desired item, the user can make a selection by either pausing for a preset time (called acceptance time selection) or by pressing a switch (called manual selection). 

Click Next. You will probably now see the Properties Specifications-Data Browser screen. You must select the appropriate physical properties package to predict the equilibrium for your chemical system. There is no choice that is always best. The choice is made through a menu item on the right side labeled Property Method. You may need to click twice to get the conplete menu. This choice is very important (Carlson, 1996 O Connell et al., 2009 Schad, 1998). If you pick the wrong model, your results are garbage. A brief selection guide is given in Table 2-4. 

This is a computerised adaptation of the Digit Symbol Coding subtest of the WISC-R. A visual key, linking the numbers 1 to 9 with nine different geometrical symbols, is present on the screen throughout the duration of the task. Immediately above, the symbols are presented one at a time in random order. The subject is required to respond by pressing the key of the corresponding number as quickly as possible. The version used in the initial assessment consisted of forty-five items. 

One could plan series with distractions (hearing in visual tasks and pictures on the screen in auditory tasks) and measure the attention with a self-rating scale (10 items from unattentive to fully attentive). 

This command prints on the screen, as one line and in an order fashion, the following four items ... 

Figure S A practical assignment for the Quantenchemie II lecture (see also Table 5) as seen by the student on the screen of his/her monitor. Activating the strings A Lennard-Jones (LJ) potentiai [can now be] fit to your results (item 2.3 in the assignment) will display background information about the LJ-potential (analytic expression, graph), and an applet to perform the curve-fitting (see also Figure 6). Other hypertext items provide an extended basis set (item 1.1) to be cut-and-pasted into the work-window, or a reference to a recent study on He-He pair potentials (Additional Information)...

When a semicolon is used in the print statement, the cursor on the screen will not move to a new line and will not advance. Subsequent printing continues immediately after the last item printed. When a comma is used, the cursor will not move to a new line but will advance to the next tab stop which can be set with dep tab. The default is usually about 5 spaces. A print statement alone causes the cursor to advance to a new line. For example,... 

Locate each of the labeled items in the illustration below in the window on your screen. 

Whenever a test 1s to be run, the sample composition and Instrument control parameters must be defined. This Is done with three (or more) data-entry screens. The first data-entry screen, shown In Figure 4, deals with experiment identification and base fluid composition. The operator simply types in the desired information Into unprotected fields of the screen. Information requested Includes such Items as experiment ID, submitter s name, base fluid type and base fluid additives. The base fluid pump rate and valve selection are also requested for later use by the control programs. The second data-entry screen is used to select the desired test temperatures and also to record any comments related to the experiment. The third data-entry screen Is used to input the in-line additive compositions. This screen is filled out for each set of additives to be tested with the base fluid as described on Data-Entry Screen No. 1. Also input are the pump rates for each of the three additive pumps. This information is used by the control programs when the additive set is being tested. (The pump rates are preset by the operator, but the pumps are turned on and off by the control programs as necessary during the course of an experiment.)... 

As indicated, the first two items on this condensed listing include those aspects of measurement that contribute error to measurements of the spectral data or of the constituent information, while the last group includes all those aspects that affect the relationships between them. From this list we see that nonlinearity is one of the fundamental limiting characteristics that makes it through this (rather brutal) screening process. 

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