What are UltraSonic Waves? Ultrasonic waves are sound waves with frequencies high about human hearing and short wave lengths. Sound waves have frequencies about 20‚000 to 100‚000. Also Ultrasound frequencies range from 20 kHz (the upper range of hearing for a young adult human) through 150 kHz (audible to some bats and other creatures)‚ right up to 10 MHz (used in some medical treatments and industrial cleaning applications). While these frequencies overlap with those of radio waves‚ they are different
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“ULTRA SONIC SPEED MEASUREMENT DEVICE” A PROJECT REPORT Submitted in partial fulfillment Of requirements for award of the degree Of BACHELOR OF TECHNOLOGY In ELECTRONICS & COMMUNICATION ENGINEERING By: Nimisha Sharma Nishant Tyagi Gaurav Sharma
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Aviation is the design‚ development‚ production‚ operation‚ and use of aircraft‚ especially heavier-than-air aircraft. The word "Aviation" was coined by french writer and former naval officer Gabriel La Landelle in 1863‚ from the verb "avier" (synonymous flying)‚ itself derived from the Latin word "avis" ("bird") and the suffix "-ation". Air transport in Egypt: The aviation sector - carries over 32 million passengers and 313‚000 tonnes of air freight to‚ from and within Egypt. More than 81‚000
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Chapter 3 Mobile Radio Propagation: Large-Scale Path Loss 1. (a) Explain the advantages and disadvantages of the 2-ray ground reflection model in the analysis of path loss. (b) What insight does the 2-ray model provide about large-scale path loss that was disregarded when cellular systems used very large cells? 2 .In a 2-ray ground reflected model‚ assume that must be kept below 6.261 radians for phase cancellation reasons. Assuming a receiver height of 2 m‚ and given a requirement that be less
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SEVERE THUDERSTORMS – OBSERVATIONAL AND REGIONAL MODELING (STORM) OVER NORTH-EASTERN REGION (NER) OF INDIA [STORM‐2010 OVER GUWAHATI] OBSERVATIONAL REPORT SUBMITTED TO MINISTRY OF EARTH SCIENCES GOVERNMENT OF INDIA BLOCK 12‚ CGO COMPLEX‚ LODHI ROAD NEW DELHI 110003 By Department of Physics Yogi Vemana University Vemanapuram Kadapa – 516 003 (in Collaboration with India Meteorological Department‚ RMC Guwahati) ACKNOWLEDGEMENTS The technical supports extended by the India
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Sliding Window Protocol Introduction: Sliding window protocol is used where a reliable transmitting of frame is required. It relies on packeting the frame queue to a definable window size which is provided to sender and receiver. Sliding window protocol defines maximum transmitter window size‚ Ws which is always one less than the sequence number. How transmitter window is defined: It is contains the data that are ready to be send. The lower limit in transmitter window which is waiting for
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Masters Program in Business Administration (MBA) Specializations: - Aviation Management Note :- (i) Solve any 10 Questions (ii) All Question carry equal marks. Q 1 ) Explain Civil Aviation in Aviation Management ? Q 2 ) Describe Aviation Sector in India with example ? Q 3) Explain with example Aircraft Regulation and guidance.? Q 4 ) Explain Air traffic control and its importance ? Q 5 ) Explain Air Safety Standards In Aviation Industry ? Q 6 ) Explain Operational Management ‚ Infrastructure
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ULTRASONIC TESTING (UT) USEFUL FORMULAE 1. Velocity of Ultrasonic Waves in a medium (V) = f x l OR W here f = Number of cycles per second is called frequency. Measured in ‘Hertz’. Abbreviated as ‘Hz’. One Hertz is equivalent to One cycle per second l = Distance covered in one cycle is wavelength V= Velocity of Ultrasonic wave inside the medium in ‘mm/s’ 2. A coustic Impedance (Z) = V x r W here: Z= Acoustic Impedance r= D ensity V= Velocity 3. R eflection Coefficient
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where storms are coming from‚ and the type of force that is carried with them. The Doppler radar is still in use today worldwide‚ all from the effects of Doppler‚ also his first invention of the Doppler Effect. Doppler’s most famous invention contributed in many different ways in modern science today‚ especially Aviation (Weather Patterns‚ Other Planes)‚ Nautical (Submarines‚ Fishing boats)‚ Police Radar Guns (Speed Traps)‚ Weather Patterns‚ Medical Imaging (Blood Flow) Christian Andreas Doppler
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your company but not of industry in general seem to be the cause of a major problem that you have recently encountered. One of your large clients developed a new type of radar detector. Radar detectors‚ also known as “fuzzbusters” are simple but extremely sensitive radio receivers that are tuned to the wave length of the police radar. When a car equipped with a enabling the driver to slow down‚ if necessary‚ before the speed of the car can be calculated by the
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