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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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n condition exhibits negative resistance characteristics in the microwave frequency range.
Since the negative resistance is based upon avalanche multiplication and transit-time effect of carriers, the device has been called the IMPATT (Impact Avalanche Transit-Time) Diode.
Device Structure

The original suggestion for a microwave device employing transit-time effect was made by W. T. Read and involved an n+-p-i-p+ structure such as that shown in figure. This device operates by injecting carriers into the drift region and is called an IMPATT diode.
The device consists essentially of t..................[:=> 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 ,
This session is intended to help new or beginning network administrators learn how to use packet capture software for ..................[:=> 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,
coV-570 UV/VIS/IR , and the fluorescence
emission measurements are recorded by using a Cary Eclipse
fluorescence spectrophotometer VARIAN . In the present
investigation, we have employed the single beam z scan
technique with nanosecond laser pulses to measure the NLO
absorptive and refractive properties of ZnO“CdS nanocom-
posites. Z scan technique developed by Bahae et al.
19,20
is a
single beam method for measuring the sign and magnitude of
nonlinear refractive index n
2
and has a sensitivity compa-
rable to interferometric methods. A Q-switched neodymium
doped yttrium al..................[:=> 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 ,
the J“V characteristics of five
227
different n-ZnO/p-Si heterojunctions with ZnO films
228
grown at different oxygen pressures. All of the five
229
heterojunctions were found to be rectifying and the
230
turn-on voltage of the heterojunctions increased as
231
shown in the inset of Fig. 5 with increasing oxygen
232
pressure during the growth of the ZnO films. The
233
J“V characteristics of the n-ZnO/p-Si heterojunc-
234
tion diode with the lowest turn-on voltage is plotted
235
on a logarithmic scale in Fig. 6. The maximum for-
236
ward-to-reverse current ratio ..................[:=> 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,
tion peak of the
113
ZnO films was found to be about 0.34°, indicating a
114
reasonably good crystalline quality of these films.
120
X-ray diffraction pattern of the ZnO films deposited
121
on the silica substrates is shown in Fig. 1b. This
122
also showed only a (002) peak of ZnO, confirming
123
the same c-axis-oriented growth as in the case of
124
ZnO films grown on the p-Si substrates. However
125
the FWHM of this peak was found to be about 0.36°,
126
which is slightly higher than that of the films grown
127
on the Si substrates, as expected.
128
Figure..................[:=> 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,
rable harm to the 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, awar..................[:=> 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 ,
amp) is an electromagnetic device for amplifying electrical signals. The magnetic amplifier was invented early in the 20th century, and was used as an alternative to vacuum tube amplifiers where robustness and high current capacity were required. World War II Germany perfected this type of amplifier, and it was used for instance in the V-2 rocket. The magnetic amplifier has now been largely superseded by the transistor-based amplifier, except in a few safety critical, high reliability or extremely demanding applications.


Principle of operation

The mag amp is a ma..................[:=> 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 ,
rinted circuit boards (PCB) and across fiber or satellite networks. Moving this 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 increa..................[:=> Show Contents <=:]



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