mediation of wires.” Bose’s first scientific paper‚ “On polarisation of electric rays by double-refracting crystals” was communicated to the Asiatic Society of Bengal in May 1895. His second paper was communicated to the Royal Society of London by Lord Rayleigh in October 1895. In December 1895‚ the London journal the Electrician (Vol. 36) published Bose’s paper‚ “On a new electro-polariscope”. At that time‚ the word ’coherer’‚ coined by Lodge‚ was used in the English-speaking world for Hertzian wave receivers
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orientation of a piezoelectric material during the design and manufacture of a device. There are certain mechanical parameters which plays a great role in piezoelectric effect. 2.2.1 Mechanical Strain The mechanical strain S which results from the application of a stress T is linearly proportional to the compliance S (S-1= Young’s modulus) within the elastic deformation region of the stress-strain curve of the material (below the yield strength )
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discovered by Sir Chandrasekhara Venkata Raman and Kariamanickam Srinivasa Krishnan in liquids‚[1] and by Grigory Landsberg and Leonid Mandelstam in crystals.[2][3] When light is scattered from an atom or molecule‚ most photons are elastically scattered (Rayleigh scattering)‚ such that the scattered photons have the same energy (frequency) and wavelength as the incident photons. However‚ a small fraction of the scattered light (approximately 1 in 10 million photons) is scattered by an excitation‚ with the
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UMTS NETWORK PLANNING‚ OPTIMIZATION‚ AND INTER-OPERATION WITH GSM UMTS Network Planning‚ Optimization‚ and Inter-Operation with GSM Moe Rahnema © 2008 John Wiley & Sons‚ (Asia) Pte Ltd. ISBN: 978-0-470-82301-9 UMTS NETWORK PLANNING‚ OPTIMIZATION‚ AND INTER-OPERATION WITH GSM Moe Rahnema John Wiley & Sons (Asia) Pte Ltd Copyright ß 2008 John Wiley & Sons (Asia) Pte Ltd‚ 2 Clementi Loop‚ # 02-01‚ Singapore 129809 Visit our Home Page on www.wiley.com All Rights Reserved.
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complicated exact equation is derived without using any approximations (just assuming that source‚ receiver‚ and wave or signal are moving linearly relatively to each other) several interesting and perhaps surprising results are found. For example‚ as Lord Rayleigh noted in his classic book on sound‚ by properly moving it would be possible to hear a symphony being played backwards. This is the so-called "time reversal effect" of the Doppler effect. Other interesting conclusions are that the Doppler effect is
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LITERATURE REVIEW ON ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING Amanpreet Kaura‚ Kamaljit Singh Bhatiab a‚b Department of Electronics Engineering‚ Sri Guru Granth Sahib World University‚ Fatehgarh Sahib‚ India Corresponding Author:kamalbhatia.er@gmail.com To design optical OFDM using low bandwidth electronics and optoelectronics components‚also low loss comb-line combiner using the IFFT‚lightware centralized Bidirectional hybrid Acess network and also with remodulated ONUS and a coherent
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www.visionias.cfsites.org www.visionias.wordpress.com IAS PHYSICS Main – Syllabus Paper- I: Section-A 1. Classical Mechanics (a) Particle dynamics Centre of mass and laboratory coordinates‚ conservation of linear and angular momentum. The rocket equation. Rutherford scattering‚ Galilean transformation‚ intertial and non-inertial frames‚ rotating frames‚ centrifugal and Coriolis forces‚ Foucault pendulum. (b) System of particles Constraints‚ degrees of freedom‚ generalised coordinates and momenta
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POWER ALLOCATION FOR THE NETWORK CODED COGNITIVE COOPERATIVE NETWORK by Major Awal Uddin Ahmed (ID: 1003) Major Md Shariful Islam(ID: 1004) Major K M Hasnut Zamil (ID: 1006) A Project Report submitted to the department of Electrical Electronic and Communication Engineering in partial fulfillment of the requirements for the degree of Bachelor of Engineering in Electrical Electronic and Communication Engineering Advisor: M. Shamim Kaiser Military Institute of Science and Technology Mirpur Cantonment
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1. ELEMENTS PICTURE (http://images-of-elements.com/xenon-2.jpg) 2. DESCRIPTION OF XENON The name originates from the Greek word ’xenon’ meaning the stranger. (http://www.elementalmatter.info/element-xenon.htm) Xenon is the fifth member of the noble gases‚ and makes up one part of a twenty millionth of the atmosphere. It is colorless‚ tasteless‚ odorless‚ and a non metal element. When put in a vacuum tube‚ it creates a bright blue glow because of the electrical discharge. Xenon
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and‚ additionally‚ getting itself trapped inside a lens. Atmospheric optics deals with how the unique optical properties of the Earth’s atmosphere cause a wide range of spectacular optical phenomena. The blue color of the sky is a direct result of Rayleigh scattering which redirects higher frequency
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