Until recently, the design of fuel cells has been done using a combination of hand-drawn schematics and SPICE simulation. However, many designers find it difficult to efficiently capture a circuit and to simulate it simultaneously using a single software package. NI Multisim simplifies the design process and enables designers to more effectively capture, simulate, and validate a circuit.
Designing a typical fuel cell system involves many steps in the schematic design, schematic capture, and SPICE simulation process. This overview will focus on the schematic capture and SPICE simulation. The overview includes: 1) tutorial to capture a basic block diagram and simulate using NI Multisim; 2) tutorial for using Multisim to design and simulate a low-cost solid oxide fuel cell system; 3) tutorial for designing a microgrid system. This new tutorial series will help first-time users of NI Multisim to design and create a new circuit or to simulate a new circuit. Also users will find their previous designs and experience with Multisim are beneficial.
NI Multisim’s comprehensive component library provides a variety of options for connecting wires to components. For example, the library includes connectors to connect devices with or without pins and the ability to select different colors to differentiate between devices. Figure 2 shows a resistor connected to a LED and a power supply. Figure 3 shows the resistance change as a function of the current at different voltages. SPICE simulation provides immediate results and helps you to understand the behavior of a circuit.
In addition to the above, MSE will offer the following security enhancements:
Real time protection: The new antivirus engine is based on signature-less technology, but is said to be highly optimized.
Sandbox protection: Windows Security Essentials includes the Heap Protection feature, which allows it to quarantine the memory of any process or program that shows suspicious activity.
Behavior monitoring: Microsoft Security Essentials will monitor changes made by applications and changes made by hackers and show problems.
Protection from phishing: MSE will use a dual-level system to detect phishing attacks, be they email and web-based.
Updates: Microsoft Security Essentials will be updated regularly for new malware, and the protection it offers will be updated daily.
The beta version of MSE comes as a download utility for Windows XP, Vista, Windows 7 and Windows Server 2003 and 2008, but not for Windows ME, 2000 and Windows 2000. It seems Microsoft is serious about not having a security product for those operating systems (unless of course they want to sell them an add-on).
Some applications, such as Java, require that the application directories and libraries are updated to a newer version before the user can update. However, there are some applications that are not explicitly API-specific, such as the X Window System, the X server source code, are automatically updated as required. 827ec27edc