A NEW REVOLUTIONARY SYSTEM TO DETECT HUMANBEINGS BURIED UNDER EARTHQUAKE RUBBLE USING MICROPROCESSOR OR MICRO COTROLLER [pic] [pic] “Thousands of persons killed as a cause of earthquake”. The above words aren’t the headlines of the newspaper but daily news everyone come across whenever we go through a newspaper or watching over a TV news. A person’s life is precious and meaningful to his loved ones. We‚ as responsible Engineers felt a part of society to bring
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Interference Introduction When two waves of equal intensity combine‚ the intensity of the resulting wave can be anywhere between zero and four times the intensity of the individual waves‚ depending upon the phase difference between them. When they are in phase (the maxima coincide with maxima and the minima coincide with minima)‚ maximum intensity results. When they are exactly out of phase (the maxima of one wave coincide with the minima of the other wave)‚ the result is zero intensity. In
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is the phase shift for the following? a. A sine wave with the maximum amplitude at time zero b. A sine wave with maximum amplitude after 1/4 cycle c. A sine wave with zero amplitude after 3/4 cycle and increasing Solution: a. There is no phase shift at time zero b. (¼) 360 = 90 90 x 2π / 360 = 1.57 rad c. (¾) 360 = 270 270 x 2π / 360 = 4. 7 rad A periodic composite signal with a bandwidth of 2000 Hz is composed of two sine waves. The first one has a frequency of 100 Hz with a
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One day my parents got our whole family in our living room and told us that we were all going on a trip to Puerto Vallarta‚ Mexico. Our whole family was so excited so later that night we all went out to eat to celebrate. When we all got home we started getting packed right away. Our plane wasn’t suppose to leave for a couple house but we were all waiting at the airport so that we would not be late. It was about 2:00 pm when our plane took off and It was the start to a long trip. When we finally
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Paper Electron diffraction through a graphite film. Mark Raskin Skidmore College (11/14/14) Abstract: In this paper‚ the wave-like properties of electrons are discussed. We are trying to measure the inter-atomic spacing (d) between the graphite atoms‚ which we are accelerating electrons through. As the electrons pass through the graphite‚ an interference pattern emerges on the screen in front of the gun. The interference pattern shows up as a circle within a circle‚ each of which represents
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The protagonist of “One’s a Heifer” goes on a quest to find his two lost calves. But the primary reason for taking this journey is to show his Aunt Ellen that he’s not a child anymore and is capable of succeeding. “I didn’t wave back” (54): this is the protagonist’s first attempt at adulthood‚ not waving goodbye to his aunt. Throughout his journey‚ the boy travels through “silent miles of prairie‚” “nagging winds‚” and deadly cold‚” yet he remains determined: “[I] choked my disappointment down and
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Information‚ such as sound‚ is carried by systematically changing (modulating) some property of the radiated waves‚ such as their amplitude‚ frequency‚ phase‚ or pulse width. When radio waves strike an electrical conductor‚ the oscillating fields induce an alternating current in the conductor. The information in the waves can be extracted and transformed back into its original form. In November 1894 public demonstration at Town Hall of Kolkata‚ Jagadish Chandra Bose ignited gunpowder and rang
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Doppler effect. The Doppler effect states that a change in frequency of a wave will occur for an observer that moves relative to the wave. This is seen in our everyday life‚ for example‚ when the siren of a police car or fire truck passes you‚ you are experiencing the Doppler effect. Key Variables Independent Variable: Original position of moving object (sound maker and sound recorder) Dependent Variable: Change in Wave Frequency (pitch of the note) Object moves at varying speeds of 5 mph
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Book Report I chose “The Shark And The Goldfish” by Jon Gordon for my book report. This book is about positive ways to thrive during waves of change and follows a goldfish named Gordy who washes out into the ocean. Gordy has always been taken care of and fed daily‚ but doesn’t know how to act or get food when he is in the ocean. He meets a nice shark named Sammy who teaches him how to find food and take care of himself. The story is a lesson for how you never know what life is going to throw
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Mere static pictures do not do justice to Lissajous Figures. When the horizontal and vertical sine wave frequencies differ by a fixed amount‚ this is equivalent to constantly rotating the phase between them. The figure produced by this rotating phase appears to be a rotating 3D figure. In addition‚ as in 3D wireframe images‚ the figure can appear to rotate in either direction‚ depending on how your brain interprets it. It can also spontaneously reverse the direction of rotation. (In a real
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