Homework 2_1 ECET310 NOISE 1. Assume that a receiver has a first amplifier stage with a 5K input resistance‚ a gain of 300‚ an input audio signal of 20 V‚ and an operating temperature of 27oC. When the amplifier is operating with a bandwidth first of 10 MHz‚ find (a) the rms input noise levels (b) the audio output levels (c) the rms output noise levels PN = noise power in watts Tk = 27°C + 273 = 300°K a) Noise level Pn(in) = KT(k)BW = (1.38x10-23)(300°K)(10MHz) = 41.4 x 10^-15 W
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Even the most meticulously improved methods are unlikely to yield good results if the work place where the operator does his work has insufficient light‚ excessive heat‚ unbearable noise‚ heavy concentrating of toxic or non-toxic dust‚ etc. Some of the important environment factors to be looked into are lighting‚ noise‚ vibration‚ heat‚ ventilation‚ housekeeping‚ selection of colors‚ amenities‚ etc. 1. Lighting: Productivity of a worker to a great extent is influenced by the extent
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Filter (SF) and Gabor deconvolution. We found that these two techniques can improve AVO analysis in CMP and CRP gathers. Structural Filter greatly enhances the S/N of gathers by removing abnormal single high amplitude events‚ outliers and strong random noise. At the meantime‚ the relative amplitude is well preserved. A smoother AVO anomaly is observed in the gathers with enhanced S/N. The gather was measured for AVO fit using a 2-term Aki-Richards equation. The AVO gradient analysis shows an amplitude
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Assignment Cover Sheet Faculty of Science and Technology NAME: SHUYAO GONG STUDENT ID: 210633853 UNIT CODE: SIT253 Class day and Time Wed 14:00 T1.05 DUE DATE: 03/08 2011 ------------------------------------------------- Plagiarism and collusion Plagiarism occurs when a student passes off as the student’s own work‚ or copies without acknowledgment as to its authorship‚ the work of any other person. Collusion occurs when a student obtains the agreement of
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effective speaker‚ it should be known that success comes from being an effective listener. By understanding barriers to listening the speaker can eliminate or reduce distraction prior to delivery of the speech. Some distractors are listed below. 1. Noise: Intrapersonal‚ Semantic and Situational a. Intrapersonal; this comes from a listener’s internal dialog‚ daydreaming‚ or focusing on their internal thoughts “day dreaming”. By listening to their internal speech‚ the listener will lose concentration
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without sound. However important sounds and noises are in our daily lives‚ a balance still needs to be found. More often than not there needs to be a greater amount of silence. First‚ silence can be powerful; it has an energy like no other. It has the power to get people to think‚ to act‚ and slow the mind down. The trouble is that many people feel the need to fill the void of silence with needless chatter‚ television‚ music‚ or some other kind of noise. True‚ silence can be disconcerting and can
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in their mouth and others that look like ghosts and scary monsters. You look left and right and the only thing you could see is fog. You look at your friends and they look as if they just seen someone pass away. You all remain silent and the only noise that you are able to here is the laughing of some clouds and yelling from other people. Although you hear these sounds you do not know where they are coming from. This is the moment when you fear your life the most. You see something white in front
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Create Tension in Chapter Three in Of Mice and Men Steinbeck creates tension by making the atmosphere before Curley’s dog gets shot very awkward. He does this by writing about how small noises draw everyone’s attention in the room to it: “He rippled the edge of the deck nervously‚ and the little snapping noise drew the eyes of all men in the room‚ so that he stopped doing it.” This quote gives a sense of tension‚ since tiny things like rippling cards can drew everyone’s attention. This makes it
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Are you an urban inhabitant who is fed up with the characteristic noises and dirty of the city? Do you yearn for hiding in a quiet and tranquil place inside? I was once awed by the peaceful scene of a small anonymous village in northern Fujian where lived an old friend of my grandmother’s. The beauty and peace of the village were unequaled. It was a beautiful morning; green mountains extended high above the clouds. Wild flowers speckled the base of the mountains‚ waving their faces in the gentle
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inevitably starts with a sound‚ which either goes off very slowly‚ or ends in a Swift movement; and it ends the same way it started‚ with noise. Noise‚ sound‚ our perception of both has changed since they were recognized and “categorized” as such. People see this soundscape changing; our awareness is evolving‚ and prompting that change. What we categorize as noise has influenced our music or maybe our perception was influenced by our circumstances and thus changed music. Attempts at analyzing these
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