Seismic waves‚ which are waves of energy that travel through the earth‚ and are a result of an earthquake‚ explosion‚ or a volcano that imparts low-frequency acoustic energy. There are two types of seismic waves‚ Body waves and surface waves. Body waves travel through the interior of the earth. Surface waves travel along the earth’s surface and through water. Seismic wave fields are measured by a seismograph‚ geophone‚ hydrophone or accelerometer. These are used to measure earthquakes. When
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Name: Date: Graded Assignment Lab Report Answer the questions below. When you are finished‚ submit this assignment to your teacher by the due date for full credit. You may type in the answers‚ but you will need to print this lab report to draw the epicenter. In this laboratory experiment‚ you will be working as an amateur seismologist to locate the epicenter of a fictional earthquake. Your task will involve interpreting seismograms from three seismograph stations; determining the difference in
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Nano Energy (2012) 1‚ 714–722 Available online at www.sciencedirect.com journal homepage: www.elsevier.com/locate/nanoenergy RAPID COMMUNICATION Geometrical control of photocurrent in active Si nanowire devices Amit Solankia‚n‚ Pascal Gentilea‚ Vincent Calvoa‚ Guillaume Rosaza‚b‚ Bassem Salemb‚ Vincent Aimezc‚ Dominique Drouinc‚ Nicolas Pauca SiNaPS/SP2M‚ UMR-E CEA/UJF-Grenoble 1‚ INAC‚ Grenoble F-38054‚ France Laboratoire des Technologies de la Microelectronique‚ CNRS‚ Grenoble‚
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The Fading Feline The jaguar is a magnificent creature. It owns a prized fur and holds a top speed of sixty-four miles per hour. This powerful‚ poised‚ and potent cat species is gradually diminishing. In the later years of the twentieth century‚ “…around eighteen thousand jaguars were killed [each] year” (Miller). Due to habitat loss‚ human intolerance‚ and poaching‚ there are only an estimated fifteen thousand jaguars left in the wild. Although there are specific organizations and government funds
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Why marketing is becoming synonymous with advertising With the growing complexity and sophistication of the marketing function‚ marketers need to choose the right set of marketing technology based on a marketing maturity model. Peter Drucker once elevated the marketing function in his quote‚ "The business enterprise has two - and only two - basic functions: marketing and innovation. Marketing and innovation produce results; all the rest are costs." With time‚ marketing has been given lesser
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Denim and jeanswear demand shows no sign of fading 18/5/2009 The denim and jeanswear market is traditionally one of the industry’s most vibrant sectors‚ embracing different age‚ fashion and commodity brackets. But how will it fare amid the current economic downturn and beyond? This is one of the main focuses of a new report from just-style‚ which offers two different forecasts for the future. Given the uncertainties of recession‚ the latest edition of just-style’s report ’Global market review
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Just a Fad: The Fading Correlation Between Fashion and Social Class Change is inevitable‚ as Charles Darwin has proven through his theory of evolution. Starting from as early as the 13th century to the present day‚ fashion and its role in society has significantly evolved. The evidence of this evolution shows exactly how the connection between fashion and social status within different societies has changed over time. Fashion is a very popular part of any culture‚ with a variety of different colors
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MARCH 2012 A Low Complexity MMSE for OFDM Systems over Frequency-Selective Fading Channels Tian-Ming Ma‚ Yu-Song Shi‚ and Ying-Guan Wang Abstract—Channel estimation is one of the key technologies in Orthogonal Frequency Division Multiplexing (OFDM) systems‚ which has received more and more consideration. A modified Minimum Mean Square Error (MMSE) is proposed and simulated by MATLAB over a frequency-selective fading channel. Comparing with the conventional MMSE‚ this algorithm has the advantage
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PERFORMANCE OF TURBO CODED OFDM IN WIRELESS LOCAL AREA NETWORK (WLAN) List of Abbreviations GSM Global System for mobile communications GPRS General Packet Radio System EDGE Enhanced Data rates for Global Evolution IEEE Institute of Electrical and Electronics Engineers MC-CDMA Multiple-Carrier Code Division Multiplex W-CDMA Wideband-Code Division Multiple Access OFDMA
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/T )] ‚ 0‚ 0 ≤ τ ≤ T /2 otherwise a) 3 marks: Find the channel frequency correlation function. b) 4 marks: Calculate the mean delay and rms delay spread. c) 3 marks: If T = 0.1 ms‚ determine whether the channel exhibits frequencyselective fading to the GSM system. 3) Cellular CDMA systems use soft handoff‚ where the transmissions to/from multiple base stations are combined to give a macro-diversity. Here we consider the effects of path loss and shadowing and ignore multipathfading. Suppose
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