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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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ent does not flow.
However when the reverse voltage exceeds a certain value, the junction breaks down and current flows with only slight increase of voltage. This breakdown is caused by avalanche multiplication of electrons and holes in the space charge region of the junction.
The pn junction in the avalanche breakdown 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.
..................[:=> 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,
This session is intended to help new or beginning network administrators learn how to use packet capture software for basic network troubleshoot..................[:=> 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,
t linear and NLO properties.
12
In this study, therefore,
the nanocomposite techniques are applied to improve the
spectral and optical properties of ZnO. In our continued ef-
forts to explore the optical properties of various nanocom-
posites, we have now elucidated the spectral and nonlinear
responses of ZnO“CdS nanocomposites.
Generally, photoluminescence spectrum of a single crys-
tal ZnO mainly consists of two bands.
13
The one in the UV
region corresponding to the near band edge emission at about
380 nm is mainly attributed to near band edge emission, and
the other in ..................[:=> 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 ,
in
361
Solid Films 386, 117 (2001).
362
16. A.S. Riad, S.A. Mahmoud, and A.A. Ibrahim, Physica B 296,
363
319 (2001).
364
17. S.H. Lim, J. Washburn, Z.L. Weber, and D. Shindo, J. Vacc.
365
Sci. Technol. A 19, 2601 (2001).
366
18. X.W. Sun and H.S. Kwok, J. Appl. Phys. 86, 408 (1999).
Fig. 8. The band structure of the ZnO/p-Si heterojunction (grown at
0.007 mbar oxygen pressure) under forward bias.
Electrical Characteristics of n-ZnO/p-Si Heterojunction Diodes Grown
by Pulsed Laser Deposition at Different Oxygen Pressures
Journal :
11664_JEM
Dispatch :
18-12-2007
Pages : 6
..................[:=> 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,
igher than the conduction-band offset DE
c
.
270
Since the carrier concentration in the p-Si side is
271
about 3 orders of magnitude 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 th..................[:=> 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,
l College Hospital has been done through proper study and so has almost all the components of a good waste management system. The key to the proper management of hospital waste lies not in most modern technologies, 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 ,
ite different from a transformer - essentially the mag amp is a saturable reactor. It makes use of magnetic saturation of the core, a non-linear property of a certain class of transformer cores. For controlled saturation characteristics the magnetic amplifier employs core materials that have been designed to have a specific B-H curve shape that is highly rectangular, in contrast to the slowly tapering B-H curve of softly saturating core materials that are often used in normal transformers.

The typical magnetic amplifier consists of two physically separate but similar transformer magnetic co..................[:=> 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 ,
-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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