Help pull-down menus

A blank LTI window will pop up. The first task would be to poke into features supported under the File and Tools pull-down menus and see what we can achieve via point-and-click. There is also a Help pull-down menu, which activates the Help Window. 

Now, go to the LTI Viewer window and select Import under the File pull-down menu. A dialog box will pop out to help import the transfer function objects. By default, a unit step response will be generated. Click on the axis with the right mouse button to retrieve a popup menu that will provide options for other plot types, for toggling the object to be plotted, and other features. With a step response plot, the Characteristics feature of the pop-up menu can identify the peak time, rise time, and settling time of an underdamped response. 

The Help pages available via the corresponding pull-down menu, are organized in a hierarchy with information on different levels. Two ways to exploit Help exist, either by using the Help menu system or by using a special cursor. Starting from a main topic associated subtopics on lower levels may be accessed. 

Start the ID WIN-NMR program and from the first Help menu choose the Contents submenu to access the introductory remarks and the main Help menu. Click on the item FID- and Spectrum Window and select the topic Pull Down Menu. Further items appear. Select File and then Filecopy Convert. Here you will find all the necessary information for the transfer of UXNMR/XWINNMR files from a remote computer to your PC. Use the Up button to move up from one level to the other, back to the main Help menu and the Close button to exit the Help tool. 

A further integral mode is available with Integration in the Process pull-down menu. This, however, will simply replace the spectrum by its integral. Its main purpose is to inspect the integral of the whole spectrum before actually and interactively execute the integration. Use the Help option for more informations if necessary. 

Use the same 2D spectrum to become familiar with all the Window options available in the Display pull-down menu. Display the full 2D spectrum at normal size (512x512). Click on the Create button and in an empty part of the display create a window. Now select a region you want to expand and copy it into the newly created window. Create a second window and expand a second part of your 2D spectrum. Use the Help tool for further information on how to do this and to display the axis within these windows. 

For 2D data which need no phase correction the PHmod parameter in FI, available in the General parameter setup dialog box opened via the Process pull-down menu, must be set to me if a magnitude, or to ps if a power spectrum should be calculated. Use the Help tool for more informations. 

These options are available only with ID WIN-NMR via the FID Shift..., Adjust Point and Zero Filling... options in the Process pull-down menu. Use the Help tool for more information about these options, their dedicated panel buttons and how to use them. 

Adding or subtracting FIDs is only possible with 1D WIN-NMR and is accomplished with the File Algebra option in the Process pull-down menu. A dialog box allows you to select the second file and to specify whether FIDs or spectra should be added/subtracted. At the same time the screen is horizontally split into three regions with the original spectrum at the top, the second spectrum in the middle and the result of the arithmetic operation at the bottom. A new button panel appears where several specific options are available (Fig. 5.27). In contrast to the Dual Display function, available in the Display pull-down menu and discussed in chapter 4, more options exist with File Algebra, i.e. to store the result or to move one of the traces with respect to the other. Use the Help tool for more information. 

Load the H spectrum of peracetylated glucose D NMRDATA GLUCOSE 1D GH 001999.1R. From the Process pull-down menu choose the File Algebra option. In the dialog box select Spectrum Type and use the expanded H spectrum D NMRDATA GLUCOSE 1D GH 002999.1R as the second spectrum. Explore the functions of the buttons in the new button panel and try out the effect of the various options. Use the Help tool if necessary. 

The principal benefit to students is a built-in function for integrating tabulated heat capacities between specified temperature limits. Without this tool, polynomial formulas in Table B.2 of the text must be integrated term-by-term and the initial and final temperatures must be entered as the limits, with tedious calculations being required for the associated arithmetic. With the Physical Property Database tool, the desired species is selected from a pull-down menu, the initial and final temperatures are typed in, and a single click leads to the calculation of the integral. This feature will be most helpful in Chapters 8 and 9 of the text. 

Solver has a secondary pull-down menu. Options, where, according to the Help assistance command, the default settings are noted usually to suffice. 

Overview of computer systems Windows 98 help screens, mouse, pull down passwords, menu bars, etc. 

---