As a web programming language, one of PHP’s strengths traditionally has been to make it easy to write scripts that access databases so that you can create dynamic web pages that incorporate database content. This is important when you want to provide visitors with information that is always up-to-date, without hand tweaking a lot of static HTML pages. However, although PHP is easy to use, it includes no general-purpose database access interface. Instead it has a number of specialized ones that take the form of separate sets of functions for each database system. There is one set for MySQL, another for InterBase, and another for PostgreSQL—and others as well.
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In this paper we describe a Python- and Tkinter-based visual-programming environment called ViPEr. This tool enables non-programmers to build computational and visualization networks interactively. Computational nodes can be placed onto a canvas and their input and output ports can be connected using the mouse. The connections between the nodes define a directed graph that will be used to propagate data and trigger the execution of nodes that have new input data. ViPEr is, in appearance, similar to programs such as AVS [Upson et al. 89] from Advanced Visual Simulations Inc, or OpenDX [DX 93] from IBM, but presents some fundamental differences which will be pointed out throughout this paper. Several examples of applications will be used to illustrate ViPEr’s design and current range of capabilities.
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The IMAQ 1426 is a highly flexible image acquisition (IMAQ) device that supports a diverse range of Camera Link-compatible cameras from various camera companies. The IMAQ 1426 acquires digital images in real time and stores the images in onboard frame memory or transfers them directly to system memory. Featuring a high-speed data flow path, the IMAQ 1426 is ideal for both industrial and scientific environments.
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Wireless systems have evolved to successfully penetrate the world of personal communications, where virtually all people can talk as needed on-demand with a feature rich and flexible set of alternatives. This world of people talking is now being complemented with a wireless world of all things “talking” – in other words, all things are becoming wireless. As these new systems continue to evolve to meet their best-fit applications in the enterprise, matching each one’s unique characteristics to the application is not always clear to the prospective end user or even to a providing system integrator.
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The RFL 98 TMX (Fig. 1) is a programmable telemetry transmitting module, capable of operating within wide input and output parameter ranges. It uses Digital Signal Processing (DSP) techniques to produce telemetry signals, having greater stability than conventional analog telemetry devices. The operating characteristics of the RFL 98 TMX can be changed by using the RFL 9800 Programmer/Calibrator, which plugs into a dedicated connector on the front of the module. RFL 98 TMX modules are designed for use in anRFL 9800 Series chassis. Each module requires five horizontal units (5E) of chassis space. Power and data connections are made through an RFL 98 DATA I/O 19-point I/O module, which is installed in the chassis directly behind the module.
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This Technical Manual is intended to be read in conjunction with the OPQ32 User Manual. The content of the latter focus on administration, scoring, norming and interpretation issues, and is intended to cover all the matters one needs to refer to when using the OPQ32. The technical manual is intended for reference purposes and provides all the technical backup needed when evaluating the OPQ32 in terms of its suitability for use.
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In this first tutorial you will learn how to start AutoCAD, save a drawing, and a range of common drawing commands.
Start AutoCAD by clicking on the Windows Start button (bottom left), then move the mouse to Programs then CAD and Modelling then “AutoCAD Architectural Desktop 2″ and click on AutoCAD Architectural Desktop 2. A dialog giving various startup options will be displayed. Select the second option: “Start from Scratch” and click OK.
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Presenting compelling search results depends critically on understanding what is there to be presented on the first place. Given that the current generation of search engines have a very limited understanding of the query entered by the user, the content returned as a result and the relationship of the two, the opportunities for customizing search results have been limited.
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