telecommunication involving the transmission of data to and from computers and components of computer systems. More specifically data communication is transmitted via mediums such as wires‚ coaxial cables‚ fiber optics‚ or radiated electromagnetic waves such as broadcast radio‚ infrared light‚ microwaves‚ and satellites. Data Communications = Movement of computer information by means of electrical or optical transmission systems Information can be represented using analog signals Analog signals
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..........................................1 1.2 Fundamental acoustic concepts ......................................................................................1 1.2.1 Plane sound waves .............................................................................................4 1.2.2 Spherical sound waves .....................................................................................13 1.3 Acoustic measurements .....................................................................
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[pic] Course Information Fundamentals of Acoustics: Applications in Speech‚ Hearing and Language Description: This course will provide students with a basic and working knowledge of acoustics and the physics of sound. It will provide the basis for measurement and description of speech stimuli. It will have direct application to Speech‚ Hearing and Language intervention as well as application into communicative sciences. CSD 221 Student Name __________________
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Kirchhoff depth migration Beam migration Wave equation migration (WEM) Velocity modelling Full Waveform Inversion (FWI) Tomography Imaging http://www.iongeo.com/Products_Services/Data_Processing/Advanced_Imaging/Waveform_Inversion/ (http://sepwww.stanford.edu/sep/biondo/3DSI_frame.html) Seismic imaging algorithms can be divided in two broad categories: integral methods (e.g. Kirchhoff methods) and wavefield-continuation methods Technique Details Wave-Equation Migration (WEM) / wavefield
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Waves Introduction For this experiment‚ the use of equipment such as oscillators and function generators were used in order to calculate forms of AC waves. Waves are visual representations of the variation of a voltage or current over time and are used in many applications throughout technology. Aim The aim of this laboratory was to be able to measure the voltage in a circuit over a specific time using equipment such as an oscilloscope‚ and using it to look at the SINE wave that is
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understand the interaction between the electromagnetic radiation and the matter (mainly)‚ + interaction of a acoustic waves and beam of particles (ions‚ electrons) with matter. • Wave model failed to account for absorption and emission of EM energy – (sinosoidal wave model (λ ‚ f‚ v‚ Amplitude) • Particle model : EM radiation is viewed as stream of discrete particles or wave packets‚ of energy called Photons where energy is proportional to frequency ( ) E~ f Electromagnetic Radiation
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Underwater Wireless Communication Points I want to cover in this Seminar Paper Acoustic Communication and Optical Communication Acoustic Waves and Optical Waves Use of Light and Sound Electromagnetic (EM) Waves Propagation Pros and Cons UANs (Underwater Acoustic Networks) UWCNs (Underwater Wireless Communication Networks) AUVs (Autonomous Underwater Vehicles) ROVs (Remotely Operated Vehicles) USNs (Underwater Sensor Networks) UWSNs (Underwater Wireless Sensor Networks) UW-ASNs (Underwater Wireless
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result of the difference between the phase velocity of propagation of an electromagnetic wave in air and that in the lens material. Lens antennas are used in radar and metering equipment that operates in the centimeter wavelength range. A lens antenna consists of a lens proper and of a feed. The shape of the lens depends on the refractive index n (the ratio of the phase velocity of propagation of a radio wave in a vacuum to that in the lens). A decelerating lens antenna‚ as in optics‚ is one for
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The Henri Rose heaved‚ mighty waves crashing on the decks. The lantern fluttered and clicked. Sailors shouted to each other as they tightened the sails‚ checking the bindings. Some held to the sails while others tried to sit down in the inner decks of the ship. Clouds enveloped the sky. Hawkins spun the helm‚ turning the ship sideways. Thunder wrecked the mighty waves‚ emitting flashes of lightning‚ clear and crystal white‚ punching through the dark skies. Wave after wave rocked the ship‚ each larger
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Sounds are waves that we hear and are caused by vibrations that travel through mediums. Depending on the medium and temperature‚ the time it takes for sound waves to travel vary. The hypothesis states that if the temperature in the air increases‚ then the speed of sound will also increase because faster-moving particles transfer energy quickly. The data collected supports the hypothesis. Therefore‚ increased air temperature affects the speed of sound because the molecules move faster‚ which causes
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