Nanotechnology of Catalysis



Catalysts are perhaps the first industrial nanotechnology
2-10 nm particles (sometimes larger) on high surface area support (Al2O2, SiO2)
Catalyst Particles

Catalytic reactions occur on catalyst surfaces

Small particles maximize surface area
-reduce catalyst volume (smaller reactors)
-optimize use of catalysts
(more metal atoms at surface)

Catalyst dispersion
fraction of catalyst atoms
at surface (10-40%)

What is Catalysis?

Berzelius, 183 ....etc

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Hi,

I am preparing a seminar with the subject Magnetic Catalysis and Inverse Magnetic Catalysis in QCD.

I am looking for a powerpoint file as a collection of the recent theoretical and experimental results in this subject.

I would be appreciated if you can help me.

Thanks in advance. ....etc

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Spin stabilized magnetic levitation



INTRODUCTION
The Levitron 1 Ref. 1! is a remarkable toy which levitates
in air a 22-g spinning permanent magnet in the form of
a small handspun top. The top is spun on a lifter plate on a
permanent magnet base and then raised to the levitation
height. The top floats about 3.2 cm above the base for over 2
min until its spin rate declines due to air resistance to about
1000 rpm. Unlike an earlier magnet toy which requires a
thrust beari ....etc

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you can refer these page details of magnetic refrigeration bellow link..

http://seminarsprojects.net/Thread-magnetic-refrigeration-full-report?pid=21061#pid21061
http://ocw.mit.edu/NR/rdonlyres/Materials-Science-and-Engineering/3-45Spring2004/52EA0080-CB0D-4726-86A1-6E21B5E889E9/0/wells_paper.pdf
http://ipnpr.jpl.nasa.gov/progress_report/42-78/78D.PDF
http://en.wikipediawiki/Magnetic_refrigeration
http://chuden.co.jp/english/corporate/press2006/1107_1.html
http://ashraedoclib/20070727_Emerging.pdf ....etc

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plz send the total information about magneto optic current transformers..
principle, operation, design, difference b/w current transformers & moct, advantages and dis advantages ....etc

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Magnetic resonance imaging (MRI)

Abstract
Magnetic resonance imaging (MRI) is a noninvasive method for producing three-dimensional tomographic images of the human body. MRI is most often used for the detection of tumors, lesions, and other abnormalities in soft tissues, such as the brain.
Several techniques for automatically segmenting brain tissues in MRI scans of the head have recently been developed. One goal of segmentation is to automatically or semi-automatically detect lesions in the brains ....etc

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Magnetic Levitation
Introduction
Magnetic Levitation is a way to suspend objects in air without any support, as if in defiance of gravity. An unsung phenomenon of the past which is now being put to use in a variety of interesting and useful applications. As a child we must have seen a ping pong ball being levitated on an air stream at the output pipe of a vacuum cleaner. Magnetic levitation, also known as maglev is used in a similar way to levitate objects in air without any support, using magnetic field. Levitation is the process by which an ....etc

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To get full information or details of magnetic bearing seminar reports please have a look on the pages

http://seminarsprojects.net/Thread-Magnetic-Bearings-pdf

if you again feel trouble on magnetic bearing seminar report please reply in that page and ask specific fields in magnetic bearing seminar report ....etc

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SMES is a grid-enabling device that stores and discharges large quantities of power almost instantaneously. The system is capable of releasing high levels of power within a fraction of a cycle to replace a sudden loss or dip in line power. Strategic injection of brief bursts of power can play a crucial role in maintaining grid reliability especially with today s increasingly congested power lines and the high penetration of renewable energy sources, such as wind and solar.

A typical SMES consists of two parts cryogenically cooled supercond ....etc

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[Who magnatic shock absorber works..?and is construction???? ....etc

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