Ajaya Kumar Kavala
Research Scholar
Department of Physics
IIT Patna


Introduction of Dielectrics

Dielectric is an entity ,in which equal positive and negative charges separated by equal small distance.
In which each molecule has permanent dipole moment P
This type of materials are known as polar materials
Different molecules has different different directions of the dipole moment.
In Non polar materials ,The centre of the positive charge distribu ....etc

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why their is an abrupt incrase in dielectric loss after it satures a high frequency? ....etc

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Supervisor: Dr. R. Mahanty
Presented by:
Ram Prasad Sinha
Sameer Singhal



Instantaneous power, p(t) = v(t)i(t)





Power, p(t) value
positive – power transmit/dissipate by load
negative – power return from the load
Since p(t) is power transmits by load, then it is the average power, P at load
P ....etc

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presented by;
Ajaya Kumar Kavala


Technique for measuring the Dielectric constant using open ended coaxial cable in the microwave frequency region
Introduction of Dielectrics
• Dielectric is an entity ,in which equal positive and negative charges separated by equal small distance.
• In which each molecule has permanent dipole moment P
• This type of materials are known as polar materials
• Different molecules has different different directions of the dipole moment.
• In Non polar materials ,The ....etc

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Can we distinguish between dielectric property at low and high frequancy? ....etc

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Abstract
This paper presents a new technique for online identificationof an induction motor rotor time constant. The techniqueis designed for a shaft-sensorless indirect field-oriented controlinduction motor drive with a model reference adaptive system(MRAS)-based speed estimator. The MRAS estimator is sensitiveto the changes in the rotor time constant, and online identificationof that parameter is essential. If rotor parameter error exists, itdoes not only change the achieved rotor speed, but it also changesthe dynamic behavior of the ....etc

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Implementing Code Optimizations Constant Propagation ....etc

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There are many ways of batterycharging but constant-currentcharging, in particular, is apopular method for lead-acid and Ni-Cd batteries. In this circuit, the batteryis charged with a constant current thatis generally one-tenth of the batterycapacity in ampere-hours. So for a4.5Ah battery, constant charging currentwould be 450 mA.This battery charger has the followingfeatures:1. It can charge 6V, 9V and 12V batteries.Batteries rated at other voltagescan be charged by changing the valuesof zener diodes ZD1 and ZD2.2. Constant current can be set ....etc

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Abstract—
The admission control problem is concerned with
determining whether a new task may be accepted by a system
consisting of a set of running tasks, such that the already admitted
and the new task are all schedulable. Clearly, admission control
decisions are to be taken on-line, and hence, this constitutes a
general problem that arises in many real-time and embedded
systems. As a result, there has always been a strong interest
in developing efficient admission control algorithms for various
setups. In this paper, we pro ....etc

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I need material on above mentioned topic i.e electrical heating,methods and applications
plz send me ....etc

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