toes in the gritty sand and lift my face to the sky from where rain drops start to fall. We turn and dash into a T-Mobile store. My father checks out the deals and buys a hideous Nokia cellphone for my mother: a hard blue shell and a thumb-sized antenna. Ironically‚ this object that I have strongly disliked since it entered into my life twelve years ago represents me wholly. A fatal fall may damage any ordinary phone‚ but my mother’s has a protective shell which keeps it from breaking. I have
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CHAPTER I THE PROBLEM AND ITS SETTING INTRODUCTION The area of wireless power transmission is very interesting. The technology is in its infancy but the overall benefits from its maturation could be significant to society as a whole. World population is expected to continue to grow exponentially. Five sixths of the world’s population lives in developing nations. Most developing nations such as China‚ India‚ and Pakistan are rapidly improving their standard of living. All of these trends point
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CAMPUS AREA WIRELESS NETWORK PROPOSAL ( UITM MACHANG ) This proposal recommends the implementation of Project CAWN (Campus Area Wireless Network) at the University Teknologi Mara‚ Kelantan branch. The following information and recommendations are necessary for the university to stay on the cutting-edge of today’s campus technology 1.0 EXECUTIVE SUMMARY The Information Technology Department‚ UiTM Kelantan has indicated that wireless access improvements are important to students
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Digital • Controls • Solid State The AM Radio & The Telephone System The AM Radio • Understanding the AM radio requires knowledge of several EE subdisciplines: – Communications/signal processing (frequency domain analysis) – Electromagnetics (antennas‚ high-frequency circuits) – Power (batteries‚ power supplies) – Solid state (miniaturization‚ low-power electronics) The AM Radio “System” Transmitter Receiver Signal • The radio system can be understood in terms of its effect on signals. •
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Radiations of GSM Base Station Antenna And Its Health Consequences- A Research conducted in Nigeria In Nigeria 98% of Global System for Mobile (GSM) base stations (cell sites) are sited within 20 meters from residential‚ offices‚ schools‚ business buildings. Cell phone antennas emit microwave frequencies‚ which are non-ionizing radiation. A research was conducted by measuring field data of radiation from GSM base antennas in Nigeria for supporting evidence public health risks from gsm radiations
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OLABISI ONABANJO UNIVERSITY P.M.B 2002 AGO-IWOYE OGUN-STATE A TECHNICAL REPORT ON STUDENTS INDUSTRAIL WORKING EXPERIENCE SCHEME (SIWES) COMMENCED FROM NOV. 1ST 2012 – FEB. 28TH 2013 UNDERTAKEN AT NO 33‚ SAKA TINUBU STREET VICTORIA ISLAND‚ LAGOS. PRSENTED BY ADEYEMI OLUWAFUNMILAYO IFEOLUWAPO MATRIC NUMBER: 09085849 DEPARTMENT: COMPUTER SCIENCE LEVEL: 400 CERTIFICATION This is to certify that this report was clearly written by
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www.jntuworld.com Satellite Communications Reference book: Satellite Communications‚ 3rd ed. Dennis Roddy McGraw-Hill International Ed. www.jntuworld.com www.jntuworld.com 1.1 Introduction Features offered by satellite communications large areas of the earth are visible from the satellite‚ thus the satellite can form the star point of a communications net linking together many users simultaneously‚ users who may be widely separated geographically Provide communications links
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wires between the sender and receiver. Radio‚ on the other hand‚ requires no such physical connection. It relies on the radiation of energy from a transmitting antenna in the form of radio waves. These radio waves‚ traveling at the speed of light (300‚000 km/sec; 186‚000 mi/sec)‚ carry the information. When the waves arrive at a receiving antenna‚ a small electrical voltage is produced. After this voltage has been suitably amplified‚ the original information contained in the radio waves is retrieved
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modulated. Pulse-modulated radar can determine the distance to a target by measuring the time required for an extremely short burst of radio-frequency (r-f) energy to travel to the target and return to its source as a reflected echo. Directional antennas are used for transmitting the pulse and receiving the reflected echo‚ thereby allowing determination of the direction or bearing of the target echo. Once time and bearing are measured‚ these targets or echoes are calculated and displayed on the
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article‚ The Friendly Iranians‚ present different ideas when it comes to describing what the TV means to the population of Iran. The book shows Margie‚ that has never had contact with a TV satellite antenna hearing one of her friends tell her that Fariborz‚ a close friend‚ which had just won that kind of antenna with international channels. Excited she jumps into a car and drives to her friend’s house where she watches MTV and EUROSPORT. She says‚ “We could finally experience a view different from the
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