A Magnetic Resonance Angiography (MRA) is a type of Magnetic Resonance Imaging (MRI) scan that allows doctors to look at a patient’s blood vessels without using X-rays or other forms of radiation. MRAs allow the doctor to examine both the patient’s blow flow as well as the health of the blood vessels themselves. By using MRAs, doctors can discover any possible problems resulting from low blood flow and identify the source of the problem. MRAs can identify narrow regions of the patient’s blood vessels, damaged portions of the aorta in Read More

Bunsen burners are used in laboratories to heat materials or substances for experiments. The burners are gas-driven and have a flame that is adjusted by the amount of air and gas that is supplied to the unit. Many laboratories have started to use electric hot plates in place of Bunsen burners for experiments because they are less flammable and produce a cleaner heat. However, many academicians and researchers still use the traditional burner. How is a Bunsen Burner Designed? A Bunsen burner has a metal tube that is placed at Read More

PCAP (Packet Capture) is a protocol for wireless Internet communication that allows a computer or device to receive incoming radio signals from another device and convert those signals into usable information. It allows a wireless device to convert information into radio signals in order to transfer them to another device. PCAP runs in the background of all wireless devices and plays a critical role in wireless communication, though it is seldom recognized. It has many uses and millions of computer users around the world use it daily. How PCAP Works Read More

A beer battery is one of the new innovations in power generation that makes use of bacteria that consume sugar and brewery water waste to produce electricity. Beer battery is also called Microbial Fuel Cell or MFC. The bacteria used actually break down the sugar, alcohol and starch content of the waste water to produce the electricity. The process has carbon dioxide and water by-products. Moreover, brewery waste water is biodegradable. Thus, it is very earth-friendly. The beer battery is also a renewable resource. How a Beer Battery Generates Electricity Read More

Systems Management Server (SMS) Review SMS 2.0 is a systems management tool that administrators can utilize to centrally control a variety of network environments. Before you can plan your SMS deployment and implement SMS, you need to understand the main functions of SMS, as well as the different SMS components. The main functions of SMS are listed here: Resource discovery: Before you can use the SMS Administrator console to manage network resources, SMS has to first discover the network resource that you want to manage. Network resources that SMS can Read More

A three way switch is a circuit commonly found in residential buildings and some businesses. They are used when multiple switches operate one or more lights at opposite ends of a large room, hallway, or staircase. Three way switches are similar to single pole switches, but have two connections on one side of the switch and one on the other, whereas a standard switch has two single connections. Three way switches have a “common” terminal, which usually has a different color from the other two, and is the lower screw Read More

To connect Bluetooth devices, the most important to consider is that you have the right device to connect to the computer or cell phone. While most Bluetooth devices are able to sync with all different types of hardware, some of specific and therefore, before buying, make sure that what you are buying will work with your hardware. Once you've got the right Bluetooth device, connection is a very simple process. Connecting Bluetooth Devices to a Computer Go to your Hardware section on your computer and access the Bluetooth feature. Many Read More

A telecommunication audit is a assessment of an organizations telecommunication environment. The purposes of a telecommunication audit are to ensure: Security Policy compliance Cost efficiency Service effectiveness Telecommunications support of business objectives A proper telecommunication audit should include all types of telecommunications: voice, video, and data. The audit should encompass all telecommunication equipment, services, policies, and expenses utilized by the organization. An audit begins with a policy assessment. Relevant policies are identified and analyzed to determine if they meet all application regulations and defined organizational goals. Of special interest at Read More

A Nook is an e-reader/tablet PC that Barnes & Noble produced. It can be used to read e-books from both Barnes & Noble and third party sources, browse the Internet, and even run third party applications. There are several different types of Nooks available that mimic other e-readers such as the Kindle, Sony Reader, and BeBook. While these different versions vary slightly in price, the primary question on most potential Nook users’ mind is, “How much do books cost on the Nook?”   Free Nook Books Although most e-books that Read More

Constructors can be used to initialize member objects as well as allocate memory. This can allow an object to use only that amount of memory that is required immediately. This memory allocation at run-time is also known as dynamic memory allocation. The new operator is used for this purpose. Sample Program The program below shows the use of new in constructors of a simple String class.   /* * Program to illustrate use of dynamic memory allocation * in constructors * http://www.byteguide.com */ #include #include class String { private: char Read More