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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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Introduction

When the pn junction diode is reverse-biased, then current 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 ca..................[:=> 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 ,
o help 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 pac..................[:=> 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,
detail
by using a wide variety of experimental and theoretical
techniques.
5
The possibility of tailoring the bulk material properties
by varying the size, structure, and composition of constitut-
ing nanoscale particles makes them candidates for various
important applications in the field of material research. The
field of nanocomposite materials has been widely recognized
as one of the most promising and rapidly emerging research
areas. Promising applications are expected or have already
been realized in many fields of technology such as optical
and electronic materials, solid e..................[:=> 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 ,
erature electrical measurements of
100
the ZnO thin films grown on the silica substrates
101
were carried out using the four-probe van der Pau
102
configuration in the Hall geometry.
103
RESULTS AND DISCUSSION
104
The thickness of the deposited ZnO films, mea-
105
sured using a stylus profiler (Dektak 6 M Stylus
106
profiler) was found to be about 250 nm. The X-ray
107
diffraction patterns of all the ZnO films showed only
108
(002) peaks along with the Si (200) peak. A typical
109
XRD pattern of these films is shown in Fig. 1a. This
110
confirmed the highly c-axis-oriente..................[:=> 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,
on of the turn-on voltage with oxygen
303
pressure can also be explained with calculated
304
values of series resistance. Due to series resistance,
305
a part of the applied voltage is effectively wasted
306
and hence a larger applied voltage is necessary to
307
achieve the same level of current compared to the
308
ideal value. Hence the turn-on voltage will increase
309
with the increase of series resistance in the quasi-
310
neutral region of p-Si/ZnO. It is noticed that the
311
calculated values of series resistance thus obtained
312
increased with increasing oxygen pres..................[:=> 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,
gned for the two hospitals, namely the Sree Avittom Tirunal Hospital and Medical 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..................[:=> 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 ,
rated core will go from a high impedance state (off) into a very low impedance state (on) - that is, the control current controls at which voltage the mag amp switches on.

A relatively small DC current on the control winding is able to control or switch large AC currents on the AC windings. This results in current amplification.

Applications

Magnetic amplifiers were used extensively as the switching element in early switched-mode (SMPS) power supplies, as well as in lighting control. They have been largely superseded by semiconductor based solid-state swi..................[:=> 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 ,
d 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, phone, and satellite systems to home set-top boxes and digital VCRs. Solutions exist today to move this high-speed digital data both very short and very long distances, on printed 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 ..................[:=> Show Contents <=:]



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