please read http://seminarsprojects.net/Thread-comparision-of-nanotechnology-with-mesotechnology for omparision of mesotechnology with nanotechnology ....etc

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Abstract
An Ad-Hoc network is a collection of wireless mobile nodes dynamically forming a temporary network without the use of any evolving network infrastructure or centralized administration. Due to the limitations of the wireless environment it may be necessary for one mobile node to enlist the need of other hosts in forwarding a packet to its destination. Thus multiple network hops may be needed for one node to exchange data with another across the network. For this purpose a routing protocol is used to discover routes between these nodes ....etc

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K.D. Slack




ABSTRACT
The traditional approach to power factor correction in a facility is to add capacitors to individual loads such as motors and fluorescent lighting circuits, to add a capacitor bank with switching to a major distribution panel, or to add a capacitor bank with switching to the power input panel from the utility lines. Recently it has been shown that careful selection of high-efficiency motors for a facility can result in new motors with a significantly higher power factor than t ....etc

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1. INTRODUCTION
The history of semiconductor devices starts in 1930 s when Lienfed and Heil first proposed the mosfet. However it took 30 years before this idea was applied to functioning devices to be used in practical applications, and up to the late 1980 this trend took a turn when MOS technology caught up and there was a cross over between bipolar and MOS share.CMOS was finding more wide spread use due to its low power dissipation, high packing density and simple design, such that by 1990 CMOS cover ....etc

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BiCMOS simple explanation


INTRODUCTION

In integrated technologies, BiCMOS, also called BiMOS It is the integration of BJT and CMOS technology into a single device.

In the 1990s modern integrated circuit technologies began to make BICMOS a reality.

BICMOS Circuit uses the characteristics of each type of transistor most appropriately.

Generally this means that high current circuit use metal oxide semiconductor field effect transistor (MOSFETs) for efficient control & portion ....etc

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I need procedure for performance comparision of mac protocol using opnet sir.. Kindly send me.. ....etc

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Complementary MOS fabrication



CMOS Technology depends on using both N-Type and P-Type devices on the same chip.
The two main technologies to do this task are:
P-Well (Will discuss the process steps involved with this technology)
The substrate is N-Type. The N-Channel device is built into a P-Type well within the parent N-Type substrate. The P-channel device is built directly on the substrate.
N-Well
The substrate is P-Type. The N-channel device is built directly on the substrate, while the P-channel device is ....etc

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i need this topic's ppt in one day.i found only the thyristor controlled series capacitor not thyristor switched series capacitor.i need the comparision between both of it. ....etc

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NMOS - N-type metal-oxide-semiconductor logic uses n-type field effect transistors (MOSFETs) to implement logic gates and other digital circuits. These nMOS transistors operate by creating an inversion layer in a p-type transistor body. This inversion layer, called the n-channel, can conduct electrons between n-type source and drain terminals. The n-channel is created by applying voltage to the third terminal, called the gate. Like other MOSFETs, nMOS transistors have four modes of operation: cut-off (or sub-threshold), triode, saturation ....etc

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CMOS circuits utilize complementary MOSFETs, i.e; NMOS and PMOS devices together in various patterns to create functional blocks like AND or OR gates. However the problem with these types of CMOS circuits is that they are inherently low power circuits. They cannot handle large currents. So when your block needs to have a large fan out (need to drive a large no of outputs, i.e; more current required) CMOS circuits fail. That is why we use BiCMOS. They are very similar to CMOS circuits except for the BJT(Bipolar Junction Transistor) output stage. ....etc

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