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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hi this is harshil, n i want information about the topic IMPROVEMENT IN TOOL LIFE OF MILLING CUTTER BY APPLICATION OF CRYOTREATMENT ....etc

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a) Reference signal extraction from corruptd
b) ECG using wavelet decomposition forMRI
c) sequence triggering: application to
d) small animals
e) Nanorobot Hardware Architecture for
f) Medical Defense
g) Eddy Currents based flexible sensor for
h) Contactless measurement of breathing
i) An ultra-low-power image compressor for
j) capsule endoscope
k) Potential Brain Imaging using
l) Near Field Radiometry
m) Two-channel data logger for quantitative
n) EEG recording while driving
o) STARFAST: a Wireless Wearable EEG/
p) ECG Biometric ....etc

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PRESENTED BY
ANINDITA ROUT


Method to produce Low temperature
Magnetism produces low temperature. When a material is magnetized it becomes warm and cold when demagnetized in controlled atmosphere thus producing low temperature
By compressing the gas it producing heat and later allowed to expand producing ultralow temperature.
Advantages of Cryogenics Processing
The following properties are attained to the materials treated
Increases wear resistance
Increases corrosion resistance
High strength ....etc

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Presented By:-
Harsh Jha


Cryogenic Refrigeration (Freezing )
INTRODUCTION
Cryogenics may be defined as the branch of physics which deals with the production of very low temperature and their effect on matter.
It may also be defined as the science and technology of temperatures below 120K.
The word “cryo” is derived from a Greek word “kruos” which means cold.
Cryogenics use the absolute temperature scales. These are Kelvin(SI units) or Rankine scale  (English/US units)
Methods ....etc

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1. Near Infrared spectroscopy in food analysis
2. VENTILATORS A bio medical instrument
3. Carbon Dioxide Laser
4. Ultraviolet Analyzer
5. Blood Flow meter
6. Smart Instruments
7. Technology on the Roads
8. Pulmonary Function tests
9. Ultra Wide Band
10. SCADA
11. Expert System & Mobile Robotic system an application of AI
12. Machine Vision System
13. Electronic Nose
14. Cryosurgery
15. Fiber Optics Pressure Sensor
16. Gas Chromatography
17. Optical Burst Switching
18. Cardic Defibrillator
19. Automatic Blood Pressure Monit ....etc

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Needed cryogenics notes and study material for 7th sem mechanical engineering ....etc

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hii i need a cryogenics notes bcz no books available in collage libarery or outside so plz provide the good notes ....etc

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a) Reference signal extraction from corruptd
b) ECG using wavelet decomposition forMRI
c) sequence triggering: application to
d) small animals
e) Nanorobot Hardware Architecture for
f) Medical Defense
g) Eddy Currents based flexible sensor for
h) Contactless measurement of breathing
i) An ultra-low-power image compressor for
j) capsule endoscope
k) Potential Brain Imaging using
l) Near Field Radiometry
m) Two-channel data logger for quantitative
n) EEG recording while driving
o) STARFAST: a Wireless Wearable EEG/
p) ECG Biometric ....etc

[:=Read Full Message Here=:]

Prepared by::B.Swathi





Introduction

Cryobiology is the study of living organisms, organs, biological tissues or biological cells at low temperatures.

Greek words cryo = cold
bios = life
logos = science


History
Cryobiology history can be traced back to antiquity. As early as in 2500B.C low temperatures were used in Egypt in medicine.
The use of cold was recommended by Hippocratus to stop bleeding and swelling.
With the emergence of moder ....etc

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Prepared by::B.Swathi





Introduction

Cryobiology is the study of living organisms, organs, biological tissues or biological cells at low temperatures.

Greek words cryo = cold
bios = life
logos = science


History
Cryobiology history can be traced back to antiquity. As early as in 2500B.C low temperatures were used in Egypt in medicine.
The use of cold was recommended by Hippocratus to stop bleeding and swelling.
With the emergence of moder ....etc

[:=Read Full Message Here=:]