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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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2. Double drift region (DDR) – A DDR diode has a p+pnn+ structure that consist of two drift layers, one for electrons and other for holes on either side of the central avalanche zone.
3. Double avalanche region (DAR) – The DAR diode has a p+nipn+ structure that consist of one drift zone sandwiched between two avalanche zones. The electrons and holes from the two junctions travel across the central i-region in opposite directions and deliver power.
These diodes make excellent microwave generators for many applications like:-
1. Parametric amplifier,
..................[:=> 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, computer engineering network traffic analysis project ,
new or beginning network administrators learn how to use packet capture software for basic network troubleshooting and traffic analysis. It will cover both installation and use of packet capture ..................[:=> 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
The spectral and NLO properties of ZnO“CdS nanocom-
posites prepared by a colloidal chemical synthesis are inves-
tigated. The optical band gap is tunable between 2.62 and
3.84 eV. The emission peaks of ZnO“CdS nanocomposites
change from 385 to 520 nm almost in proportion to changes
in E
. It is possible to obtain a desired luminescence color
from UV to green by simply adjusting the composition. NLO
response of these samples is studied by using nanosecond
laser pulses from a tunable laser at excitonic resonance and
off-resonance wavelength..................[:=> 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 ,
nction diodes of n-type ZnO/p-type silicon (100) were fabricated by
pulsed laser deposition of ZnO films on p-Si substrates in oxygen ambient at
different pressures. These heterojunctions were found to be rectifying with a
maximum forward-to-reverse current ratio of about 1,000 in the applied
voltage range of -5 V to +5 V. The turn-on voltage of the heterojunctions was
found to depend on the ambient oxygen pressure during the growth of the ZnO
film. The current density“voltage characteristics and the variation of the
series resistance of the n-ZnO/p-Si ..................[:=> 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,

figure that the band gap decreased from 3.36 eV to
3.257 eV with an increase of the oxygen pressure
from 0.003 mbar to 0.007 mbar. Series resistance,
an inherent resistance of the depletion region in
N-ZnO/p-Si heterojunction of all the diodes grown at
different oxygen pressures was calculated from the
plot of log (I) versus V,
which is also shown in
Fig. 2a. As can be seen in this figure the series
3.45 · 10
Fig. 1. XRD pattern of ZnO films deposited on (a) p-silicon (100) and
(b) sil..................[:=> Show Contents <=:]


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,
society. All these factors receives our immediate attention to the safe management of hospital waste. Irrespective of the type of hospital or its size, it is essential to have a proper waste management system which should be effective enough management system which should be effective enough to rectify the problems in the handling and disposal of wasters. This could be done by properly studying the hospital, its waste generation characteristics etc. A properly designed system should have along with appropriate methods of collection, transportation and disposal of wastes, awareness creation pro..................[:=> 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 ,
rgely superseded by semiconductor based solid-state switches, though recently there has been some regained interest in using mag amps in compact and reliable switching power supplies. PC ATX power 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 ..................[:=> 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 ,
b)Low noise generation
c)High noise rejection
d)Robust transmission signals
e) Ability to be integrated into system level ICs

LVDS technology allows products to address high data rates ranging from 100's of Mbps to greater than 2 Gbps. For all of the above reasons, it has been deployed across many market segments wherever the need for speed and low power exists.

Consumers are demanding more realistic visual information in the office and in the home. This drives the need to move video, 3D graphics and photo-realistic image data from cameras to PCs and printers through LAN, phon..................[:=> Show Contents <=:]

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