VARIATION OF DAMPING RATIO AND SHEAR MODULUS WITH PLASICITY INDEX AND CONFINING PRESSURE

INTRODUCTION
Behaviour of soil under cyclic loading is non-linear

Non-linear behaviour commonly characterised by:

Damping coefficient, D

Shear modulus, G


DEFINITION
Damping coefficient
Is defined as the measure of energy dissipation
Shear modulus
Is the ratio of shear stress to shear strain
Plasticity index
Is the difference between liquid limit and plastic
limit
Confining pressure
Is ....etc

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INTRODUCTION
Protective relaying is an integral part of any electrical power system. The fundamental objective of system protection is to quickly isolate a problem so that the unaffected portions of the system can continue to function. The flip side of this objective is that the protection system should not interrupt power for acceptable operating conditions, including tolerable transients.
The choice of protection depends upon several aspects such as type, rating of the protected equipment, its important lo ....etc

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Abstract
This paper focuses on the experimental investigation carried out on high strength concrete reinforced with hybrid fibres (combination
of hooked steel and a non-metallic fibre) up to a volume fraction of 0.5%. The mechanical properties, namely, compressive strength, split
tensile strength, flexural strength and flexural toughness were studied for concrete prepared using different hybrid fibre combinations
steel polypropylene, steel polyester and steel glass. The flexural properties were studied using four point bending t ....etc

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Presented by:
Ratish J. Punnoose

Introduction

Ex: An ultrasonic signal at 200kHz and another one at 201kHz will generate a 1kHz tone and a 401kHz signal which is inaudible to the human ear.

If an AM signal with a non-zero carrier amplitude is passed through Air, it is self-demodulated

- for more details on the topic and ppt, please follow the page link given below

http://ece.cmu.edu/ ece796/seminars/12/seminars/blacksonic.ppt ....etc

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Freedomsoft offers a resource that brings internet marketing and technological advancement together to offer a solution to this problem with its squeeze pages and database. Most people in this business have, or are building a buyers list, and are constantly speaking with sellers. landing page or opt-in page) to gather data from buyers and sellers.
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hey i m ankur a 3rd year electrical engg student..i want seminar details for the topic Feeder Protective Relay. mail me the details on [email protected] you!! ....etc

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Presented By;
D. Rai. G. Rainakrishna. S.O. Faried,

Abstract
In This paper investigates the impact of a STATCOM operating in a phase imbalanced mode on damping sub synchronous resonance in series capacitive compensated transmission grid. Phase imbalance has the potential of reducing the energy exchange between the electrical and mechanical sides of turbine-generator and, therefore, damps the sub synchronous oscillations resulting from series capacitive compensation.

read full report
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Fuzzy Coordination of FACTS Controllers for Damping Power System Oscillations

Abstract
This paper concerns the optimization and coordination of the conventional FACTS (Flexible AC Transmission Systems) damping controllers in multimachine power system. Firstly, the parameters of FACTS controller are optimized. Then, a hybrid fuzzy logic controller for the coordination of FACTS controllers is presented. This coordination method is well suitable to series connected FACTS devices like UPFC, TCSC etc. in damping multi-mod ....etc

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