Ultra capacitors & Super Capacitors store electricity by physically separating positive and negative charges?unlike batteries which do so chemically. The charge they hold is like the static electricity that can build up on a balloon, but is much greater thanks to the extremely high surface area of their interior materials.

Nano Ultracapacitor Diagram


? An advantage of the ultracapacitor is their super fast rate of charge and discharge... which is determined solely by their physical properties. A battery relies on a slower chemica ....etc

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Integrated Implantable Stimulator without Off-Chip Blocking-Capacitors
Presented by:
Shiyad Ashraf
No. 61
College Of Engineering, Trivandrum
2007-11 batch

Contents
Introduction
Working of FES
Need of blocking capacitors
Disadvantages of using blocking capacitors
Methods of protection without off chip capacitors
Technique for avoiding off chip capacitors
Stimulator output stages utilizing blocking capacitors
Current generator circuits
Proposed current generator circuits
Proposed output stage
St ....etc

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Aluminum Electrolytic Capacitors

Aluminium electrolytic capacitors are widely used in power supply circuitry of electronic equipment as there after several advantages over other types of capacitances. The selection of a capacitor for an application without knowing the basics may result in unreliable performance of the equipment due to expanitor problems. It may lead to customer dissatisfaction and damage market to potential or the image of a reputed company. The aluminium eletrolytic capacitors are suitable to be used when a great capacitanc ....etc

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I amit chauhan, i wanna paper and ppt presentation on ultra capacitors and sensors in medical science for my college seminars.please send me within one day.my email id is [email protected] ....etc

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Abstract:

The science and technology of ultracapacitors are reviewed for a number of electrode materials, including carbon, mixed metal oxides, and conducting Polymers .More work has been done using microporous carbons than with the other materials and most of the commercially available devices use carbon electrodes and an organic electrolytes.
This paper reveals the importance and the urgent need for the evolution of ultra capacitors which is expected to bring a revolutionary and rema ....etc

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please tell me some hints about it............. ....etc

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ULTRA- FAST ULTRA - HIGH INTENSE LASER




ABSTRACT

The year 2008 will probably known as the year of ultra mobile PCs with a slew of Ultra Mobile PCs being released by different companies. Ultra mobile PC promises to support wired or wireless network to which is a major plus as gives a number of options for net connection along with mobility. On the specification side the device sports s 7 inch LCD screen with a resolution is a ....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 ....etc

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Capacitors




Zealots:


capacitors are our friends. In this issue I will explain what they are, what they do, and
finally how you can change your filter caps and make your amp have something most of us rarely
experience: Real BASS!
What do they look like? That's the question that I wish someone answered for me when I fist
became curious about this stuff. The most easily identifiable are the ones that look like little brown
plain M&Ms, but ....etc

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It is an electronic component whose function is to accumulate charges and then release it.
To understand the concept of capacitance, consider a pair of metal plates which all are placed near to each other without touching. If a battery is connected to these plates the positive pole to one and the negative pole to the other, electrons from the battery will be attracted from the plate connected to the positive terminal of the battery. If the battery is then disconnected, one plate will be left with an excess of electrons, th ....etc

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