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ABSTRACT

The basic principles of Dual Energy X-ray Absorptiometry have been discussed in this presentation. DEXA is a instrumental technique used to measure bone mineral density (BMD), which is the widely accepted indicator of bone strength. DEXA scanner is the most widely used modern electronic machine to diagnose the disease osteoporosis, the thinning of bones. Human body being a heterogeneous system, use of a dual energy, rather than single energy, X-ray source is necessary for scanning. The interaction of the sample wi ....etc

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Definition

The basic principles of Dual Energy X-ray Absorptiometry have been discussed in this presentation. DEXA is a instrumental technique used to measure bone mineral density (BMD), which is the widely accepted indicator of bone strength. DEXA scanner is the most widely used modern electronic machine to diagnose the disease osteoporosis, the thinning of bones. Human body being a heterogeneous system, use of a dual energy, rather than single energy, X-ray source is necessary for scanning. The interaction of the sample with the X-ray beam ....etc

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DUAL PORT FIFO

Abstract:- The dual port FIFO is now a standard building block in most designs, especially in the area of communications where it is used frequently for packet work. Although very useful in its basic form, the standard FIFO does lack two attributes; autonomy and cascadability. Unfortunately you cannot simply connect two FIFOâ„¢s together, as shown below, and expect them to automatically transfer data ....etc

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Definition
The basic principles of Dual Energy X-ray Absorptiometry have been discussed in this presentation. DEXA is a instrumental technique used to measure bone mineral density (BMD), which is the widely accepted indicator of bone strength. DEXA scanner is the most widely used modern electronic machine to diagnose the disease osteoporosis, the thinning of bones. Human body being a heterogeneous system, use of a dual energy, rather than single energy, X-ray source is necessary for scanning. The interaction of the sample with the X-ray beams ....etc

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If you have you lost count of the times you find your computer lagging when you work on several AutoCAD projects while also zipping your entire C drive, and burning a series of CDs, or if youâ„¢ve just hoped that you could find an expensive new computer feature that is more status symbol than performance, here the answer; you should be happy to hear about the new systems work.A dual-core processor is a CPU with two separate cores on the same die, each with its own cache. Itâ„¢s the equivalent of getting ....etc

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Definition

Seeing the technical difficulties in cranking higher clock speed out of the present single core processors, dual core architecture has started to establish itself as the answer to the development of future processors. With the release of AMD dual core opteron and Intel Pentium Extreme edition 840, the month of April 2005 officially marks the beginning of dual core endeavors for both companies.

The transition from a single core to dual core architecture was triggered by a couple of factors. According to Moore's Law, the number o ....etc

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Computer performance has been driven largely by decreasing the size of the chips while increasing the number of transistors they contain. In accordance with Moore?s law, this has caused chip speed to rise and prices to drop. However transistors can?t shrink forever. As components grow thinner, chip manufactures have struggled to cap power usage and heat generation. Even performances enhancing approaching like running multiple instructions per thread have bottomed out. In response manufactures are building chips with multiple cooler running, mor ....etc

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Dual-Link Failure Resiliency Through Backup Link Mutual Exclusion

Abstract”
Networks employ page link protection to achieve fast recovery. While the first page link failure can be protected using page link protection, there are several alternatives for protecting against the second failure. This paper formally classifies the approaches to dual-link failure resiliency. One of the strategies to recover from dual-link failures is to employ page link protection for the two failed links independently, which requires that two links may ....etc

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The dual mass flywheel, or DMF, eliminates excessive transmission gear rattle, reduces gear change/shift effort, and increases fuel economy. There are two basic types of Dual Mass Flywheels. The first is made up of a primary and secondary flywheel with a series of torsion springs and cushions. There is a friction ring located between the inner and outer flywheel that allows the inner and outer flywheel to slip. This feature is designed to alleviate any damage to the transmission when torque loads exceed the vehicle rating of the transmission. T ....etc

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