ABSTRACT



Because of high requirements in power, efficiency, installation space and weight, the design of electrical machines for hybrid electrical vehicles is a particular challenge. This seminar describes a comparative study allowing the selection of the most appropriate electric-propulsion system for a parallel hybrid electric vehicle (HEV). This seminar is based on an exhaustive review of the state of the art and on an effective comparison of the performances of the four main electric propulsion systems, namely the dc moto ....etc

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PREPARED BY
ASHUTOSH MISHRA


BASIC CONCEPTS OF ROTATING ELECTRICAL MACHINES ....etc

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Basic Principles and Functions of Electrical Machines



INTRODUCTION
The Direct Current (D.C.) machine, the synchronous machine, and the induction machine are the major electromechanical conversion devices in industry . The merits of the squirrel cage induction machine are: lightness, simplicity, ruggedness, robustness, less initial cost, higher torque-inertia ratio, capability of much higher speeds, ease of maintenance, etc . The most important feature which declares it ....etc

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I want viva question in electrical machines 1 lab with answers
please give it to me ....etc

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requet: send us material related to special machines
requirments : about design, working
comment : give as early as you can ....etc

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Fusion: Basic Principles, Current Progress and ITER Plans

Mohamed Abdou
Distinguished Professor, Mechanical and Aerospace Engineering Department
Director, Center for Energy Science and Technology Advanced Research (CESTAR)
Director, Fusion Science and Technology Center
University of California Los Angeles (UCLA)


Incentives for Developing Fusion

Fusion powers the Sun and the stars
It is now within reach for use on Earth
In the fusion process lighter elements are fused together, making heavier elem ....etc

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RINI . M .VINCY
SHARIL.ALEX
ARCHA MOHANDAS
SNEHA SKARIYA
SRUTHY. LS



BASIC REFRIGERATION PRINCIPLES
If you were to place a hot cup of coffee on a table and leave it for a while, the heat in the coffee would be transferred to the materials in contact with the coffee, i.e. the cup, the table and the surrounding air. As the heat is transferred, the coffee in time cools. Using the same principle, refrigeration works by removing heat from a product and transferring that heat to the outside air ....etc

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This article is presented by:
A. Lobontiu, D. Loisance
Department of Cardio-Thoracic Surgery
Henri Mondor Hospital, University Paris 12, France
ROBOTIC SURGERY AND TELE-SURGERY:
BASIC PRINCIPLES AND DESCRIPTION OF A NOVEL CONCEPT

ROBOTIC SURGERY AND TELE-SURGERY: BASIC PRINCIPLES AND DESCRIPTION OF A NOVEL
CONCEPT (Abstract): One of the most important advances in surgical technology in the last two decades of the twentieth century is represented by the introduction ....etc

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BASIC INSTRUMENTATION MEASURING DEVICES AND BASIC PID CONTROL


INTRODUCTION
Instrumentation is the art of measuring the value of some plant parameter,
pressure, flow, level or temperature to name a few and supplying a signal
that is proportional to the measured parameter. The output signals are
standard signal and can then be processed by other equipment to provide
indication, alarms or automatic control. There are a number of standard
signals; however, those most common in a ....etc

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Basic Principles of Ultrasonic Testing



basic principles of ultrasonic testing Wave propagation

Longitudinal waves propagate in all kind of materials.
Transverse waves only propagate in solid bodies.
Due to the different type of oscillation, transverse waves travel at lower speeds.
Sound velocity mainly depends on the density and E-modulus of the material.

Reflection and Transmission

As soon as a sound wave comes to a change in material characteristics ,e.g. t ....etc

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