DESIGN AND FABRICATION OF PULSE TUBE REFRIGERATION SYSTEM

ABSTRACT
Cooling effect at one end of a hollow tube with a pulsating pressure in the inside gas, was first observed by Gifford and Longsworth in early sixties. This marks the inception of one of the most promising cryogenic refrigerators known as 'pulse tube refrigerator' (PTR). Cryogenics is the science of low temperature. Cryogenics refers to the entire phenomenon occurring below -150°C or 123K. Cryogenic engineering involves the design and development of ....etc

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1. INTRODUCTION
Rocket engines that work much like an automobile engine are being developed at NASAâ„¢s Marshall Space Flight Center in Huntsville, Ala. Pulse detonation rocket engines offer a lightweight, low-cost alternative for space transportation. Pulse detonation rocket engine technology is being developed for upper stages that boost satellites to higher orbits. The advanced propulsion technology could also be used for lunar and planetary Landers and excursion vehicles that require throttle ....etc

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INTRODUCTION

Pulstar pulse plugs by Enerpulse look and fit like traditional spark plugs, but are exponentially more powerful. Pulstars discharge with 10 times the energy of a spark plug! This high power pulse discharge ignites the compressed air/fuel mixture in the cylinder more precisely and completely, producing on average 6% better fuel economy and torque.

With the assistance of Sandia National Laboratories in Albuquerque, Enerpulse developed Pulstar™ to increase the peak power of the spark by 10 times a ....etc

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ppt for industrial high voltage transformer protection against overheating of transformer using microcontroller
please help me ....etc

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I. Introduction
Current U.S. military transformation strategy centers on information dominance, network-centric warfare, and expeditionary operations. Operations Desert Storm and Iraqi Freedom demonstrated a spectacular evolution of capability in these key areas. Certainly, adversaries learned from Saddamâ„¢s poor decision to face American forces head-on and will increasingly employ asymmetric attacks to defeat U.S. forces in the future. Electromagnetic pulse (EMP) weapons represent one of the most likely and potentially devastating opp ....etc

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Electromagnetic Pulse (EMP) is an intense energy field that can instantly overload or disrupt numerous electrical circuits at a distance. Modern high technology microcircuits are especially sensitive to power surges, and the possible vulnerability of U.S. civilian computer systems to the effects of EMP has been discussed in the media. EMP can be produced on a large scale using a single nuclear explosion, and on a smaller, non-nuclear scale using a device with batteries or chemical explosives. Several nations, including reported sponsors of ter ....etc

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i want a full seminar presentation on buck boost transformer so plz provide materials regarding this topic ....etc

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please send me full seminar report on pulse transformer
i am searching about pulse transformer not pulse counter, please send me seminar about pulse transformer ....etc

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Pulse Shape Improvement in Core-Type High-Voltage Pulse Transformers With Auxiliary Windings
High-voltage pulsed power technologies are rapidly emerging as a key to efficient and flexible use of electrical power for many industrial applications. One of the most important elements in high-voltage pulse-generating circuit technology is the transformer, generallyused to further increase the pulse output voltage level. However, its nonideal behavior has significant influence on the output pulse shape.The most attractive winding configurati ....etc

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ABSTRACT
Mechatronics is a hybrid technological field which evolved from the combination of mechanical, electronics & Software engineering. Automobiles need high degree of safety to protect the occupants and their property. Bearing this in senses we come up with a new concept of Electric pulse Magnetic Braking (E.P.M.Braking).
When the driver applies force on the brake pedal the magnitude is sensed by the pressure transducer which in turn sends the actuating signals to microprocessor. This intelligent devi ....etc

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