QHP 2007 Notes – Quantitative Human Physiology

Overview. QHP 2007 is a new mathematical model of integrative human physiology.

There are two main components of the software package

The first is the equation solver, named QHP 2007.EXE. This is the executable file, prepared for the Windows operating system (2000, xp, Vista).

The second is an XML document that defines the model, the solution control and the display of results. This document is distributed over a large number of small files in the main folder and several subfolders. The XML schema used is described in preliminary fashion in another section of this modeling workshop.

The XML document is parsed at program startup. Parsing progress is displayed in the status bar at the bottom of the program’s main window.

All of the XML files are both machine and human readable. You only need a text editor (such as Notepad, WordPad).

Distribution. The complete model (executable plus XML) is distributed as a single zipped (compressed) file named QHP 2007 ZIP.EXE size is 1.6 MB). This is a self-exploding file. Run it and it will automatically recreate all of the required files and folders.

Experience suggests that it is best to create a new folder (named such as C:\QHP 2007) before downloading. Then, direct your browser to download the zipped file to this folder.

Next, find the downloaded ZIP file on your hard drive using your file navigator (Storage, My Computer, Vista Computer) and run the file by double clicking on its name. The exploder will want to place all recreated files off in some obscure place on your hard drive. Tell it no, use C:\QHP 2007 or equivalent.

A successful installation yields 2 main files and 4 main subfolders

Your Folder - Config (Folder)

Control (Folder)

Display (Folder)

Structure (Folder)

QHP 2007.DES (Data)

QHP 2007.EXE (Executable)

The main XML file is named QHP 2007.DES. All of the other XML files are included during the parse. If you move, rename or delete any of these XML files, the parser will be confused and will show an error message. In the future, we will provide information about the steps needed to create custom versions of the model (with a different file roster).

Running The Model. The procedures used in running this model are very similar to those used in running QCP.

The solution is advanced as a function of time using the selections shown on the Go popdown menu. The Stop menu selection will interrupt the calculations.

The calculated results are displayed as numerical values and graphs in panels that can be selected into the program’s main window. Parameters can be altered using the radiobuttons and slidebars displayed in the panels.

The Physiology, Organs and Clinic main menu selections list the model’s panels. Click to display a panel. The main menu’s forward and back arrows (<>) step the display through recently selected panels. The total number of recent panels to be remembered can be specified in the Options dialog box.

Additional Features. The Restart main menu selection can be used to restart the solution. The Options | Reset tab can be used to reset the model all the way back to power-up conditions.

Move the mouse pointer over any numerical value or graph and left click. A dialog box will be displayed that gives details of the relevant variable or variables and the solution history. The solution history can be sent to the clipboard for external processing.

Use the File | Save, Load menu selections to save and then reload complete sets of initial conditions. The data format is XML.

Use the File | Save, Load menu selections to save and then reload complete solutions. Again, the data format is XML.

The Tech dialog box provides technical information about the model and its current solution, including a summary of parser activity.

Versions. Since this is only a preview version of QHP, expect the versions of both the equation solver and the XML document to change frequently as additional content is added. Also, expect versions to be incompatible. When doing an update, replace all existing files with the new files.

The executable code’s version is displayed as a build date in the Help | About dialog box.

The XML document’s version is displayed as a date in the upper, right-hand corner of the first solution panel that is displayed.

The initial versions for this preview version of QHP are both May 13, 2007.

Important. This software does not alter your computer’s registry.

You can uninstall this software simply by deleting the folder containing the QHP 2007.EXE executable file and all subfolders.

This software creates files on your storage media (hard drive) only in the following conditions.

It automatically writes a file at program exit to save your user’s preferences for the next session. This file (with file extension INI) is optional, which means the software may be run from a read-only medium such as a CD if you choose.

This software will also write files when you optionally chose to save initial conditions or solution values using the File main menu selections.

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