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IMPATT Diode


Posted by: projectsofme
Created at: Tuesday 21st of December 2010 05:27:17 AM
Last Edited Or Replied at :Tuesday 21st of December 2010 05:27:17 AM
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avalanche zones. The electrons and holes from the two junctions travel across the central i-region in opposite directions and deliver power.
Applications
These diodes make excellent microwave generators for many applications like:-
1. Parametric amplifier,
2. Parametric up converter,
3. Parametric down converter,
4. Negative resistance parametric amplifier.
Summary
IMPATT stands for Impact Avalanche And Transit Time
Operates in reverse-breakdown (avalanche) region
Applied voltage causes momentary breakdown once per cycle
This starts a pulse of cur..................[:=> Show Contents <=:]



Network Traffic Analysis


Posted by: mechanical engineering crazy
Created at: Wednesday 05th of August 2009 06:45:27 AM
Last Edited Or Replied at :Wednesday 05th of August 2009 06:45:27 AM
network traffic compression , network traffic congestion, what is network traffic engineering , nsasoft network traffic emulator, network traffic encryption , network traffic simulator, network traffic engineering , network traffic control software, network traffic controller , network traffic check, network traffic counter , network traffic calculator, network traffic classification , network traffic characteristics of data centers in the wild, network traffic capture , network traffic control, Network Traffic , Analysis, Traffic , Network,
sis. It will cover both installation and use of packet capture software and the fundamentals of basic network traffic analysis, including identifying communication issues, monitoring network performance, verifying network security and tracking communication transactions...................[:=> Show Contents <=:]



Spectral and nonlinear optical characteristics of nanocomposites of ZnO


Posted by: super
Created at: Saturday 13th of June 2009 10:22:20 PM
Last Edited Or Replied at :Saturday 13th of June 2009 10:22:20 PM
ZnO,
dS volume fraction at 532 nm. The observed nonlinear ab-
sorption is explained through TPA followed by weak free
carrier absorption. The enhancement of the third-order non-
linearity in the composites can be attributed to the concen-
tration of exciton oscillator strength. This study is important
in identifying the spectral range and composition over which
the nonlinear material acts as a RSA based optical limiter. It
is shown that ZnO“CdS is a potential nanocomposite mate-
rial for tunable light emission and for the development of
NLO devices with a relatively small limiting th..................[:=> Show Contents <=:]



Electrical Characteristics of n-ZnOp-Si Heterojunction Diodes


Posted by: seminar projects crazy
Created at: Saturday 13th of June 2009 03:37:49 PM
Last Edited Or Replied at :Saturday 13th of June 2009 03:37:49 PM
Diodes , Heterojunction, n ZnOp Si , Characteristics, Electrical , band structure of zno si heterostructure, heterojunction in zno p si pdf , band parameter of semiconducter used in heterostructure, diode bas sur zno si n heterojonction these , l heterojonction zno si pdf, zno si heterojunctions ,
e lower than that in the
272
ZnO side, all the depletion region within the p-Si/
273
ZnO heterojunction is extended into the p-Si side.
274
Figure 7a shows that the bottom of the conduction
275
band on the ZnO side lies lower in energy than that
276
on the p-Si side. Hence under relatively low forward
277
bias, the chance of electron flow from the ZnO side
278
to the p-Si side is negligible due to the higher bar-
279
rier difference felt by the electrons at the bottom of
280
the conduction band on the ZnO side. This resulted
281
in a higher turn-on voltage for the p-Si/ZnO ..................[:=> Show Contents <=:]



Electrical Characteristics of n-ZnOp-Si Heterojunction Diodes


Posted by: seminar projects crazy
Created at: Saturday 13th of June 2009 03:34:37 PM
Last Edited Or Replied at :Saturday 13th of June 2009 03:34:37 PM
Diodes , Heterojunction, n ZnOp Si , Characteristics, Electrical , impedance heterojunction,
age (J“V) plot of ZnO/n-Si heterojunc-
tions on a logarithmic scale. The inset shows the current“voltage
(I“V) plot of the In/ZnO contact.
Fig. 7. (a) The band structure of the ZnO/p-Si heterojunction (grown
at 0.007 mbar oxygen pressure) under zero bias. (b) The variation of
DE
v
with oxygen pressure during PLD of ZnO films.
Ajimsha, Jayaraj, and Kukreja
Journal :
11664_JEM
Dispatch :
18-12-2007
Pages : 6
h LE
h TYPESET
Article No.: 365
h CP
h DISK
4
4
Author ProofPage 5

UNCORRECTE
D
PROOF
263
respectively. The variation of DE
v
with oxygen
264..................[:=> Show Contents <=:]



HOSPITAL WASTE MANAGEMENT


Posted by: seminar projects crazy
Created at: Friday 30th of January 2009 12:58:54 PM
Last Edited Or Replied at :Wednesday 23rd of February 2011 09:54:13 PM
MANAGEMENT, WASTE , HOSPITAL, hospital waste management ppt , hospital, biomedical waste management in hospitals ppt , biomedical waste management project topics, characteristics of a good waste disposal system of a hospital , hospital waste management in india ppt, hospital biomedical waste disposal and ppt , hospital wastw management ppt, metods disposal solid waste hospital ppt , hospital waste management project report, hospital waste management project pdf file , powerpoint presentation on hospital waste management system, powered by mybb medical hospitals , project report on waste management in hospital, topics on waste management ppt , research paper topics on waste disposal of hospital,
ies, but in the application of appropriate and systematic waste management practices...................[:=> Show Contents <=:]



Magnetic Amplifiers


Posted by: seminar projects crazy
Created at: Monday 26th of January 2009 10:40:13 PM
Last Edited Or Replied at :Monday 26th of January 2009 10:40:13 PM
Amplifiers, Magnetic , magnetic amplifier doc, series and parallel connections magnetic amplifier , magnetic amplifier, magnetic amplifier characteristics , characteristics magnetic amplifier, characteristics of magnetic amplifier , some points for seminar on magnetic amplifier, seminar topic on magnetic amplifiers , current measurement magnetic amplifier, measuring current low currents transformer magnetic amplifier , magnetic amplifier seminar, seminar on magnetic amplifier , mag amp priciples, magamp post regulator , amplifying magnetic fields, andrew piaskowski magnetic amplifier ,
supplies often use mag amps for secondary side voltage regulation.

Magnetic amplifiers are still used in some arc welders.

Magnetic amplifier transformer cores designed specifically for switch mode power supplies are currently manufactured by several large electromagnetics companies, including Metglas and Mag-Inc.

Magnetic amplifiers can be used for measuring high DC-voltages without direct connection to the high voltage and are therefore still used in the HVDC-technique.

For More Read

http://en.wikipedia.org/wiki/Special:BookSources/0970961855
http://focus.ti.com/lit/ml/slup1..................[:=> Show Contents <=:]



Low-Voltage Differential Signaling LVDS


Posted by: computer science crazy
Created at: Sunday 21st of September 2008 12:42:32 AM
Last Edited Or Replied at :Monday 04th of July 2011 12:17:18 PM
LVDS , Signaling, Differential , Low Voltage, low voltage differential signalling , low voltage signaling, low voltage differential signaling seminar , low voltage differential signaling, lvds seminars and ppts , poster presentation on low voltage differential signaling, low voltege differential signaling , lvds rs422 single ended interface scheme, low votage differential signalling seminar report , lvds sminar report, seminar report low voltage differential signaling pdf , seminar report on low voltage differential signalling pdf file, low voltage differential signaling seminar pdf , lvds abstract and report doc, tia eia 899 electrical characteristics of multipoint low voltage differential signaling ,
data from board-to-board or box-to-box however, requires an extremely high-performance solution that consumes a minimum of power, generates little noise, (must meet increasingly stringent FCC/CISPR EMI requirements) is relatively immune to noise, and is cost-effective...................[:=> Show Contents <=:]



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