Jiawei Huang 37154135 Fourier Transform Assignment 1. Fourier transform of sine wave (code): import numpy as np import matplotlib.pyplot as plt from scipy.fftpack import fft‚fftfreq dt = 0.01 time = np.arange(0‚5.‚dt) f_1 = 3. a_1 = 2.3 y = a_1*np.sin(2.*np.pi*time*f_1) plt.plot(time‚y) plt.xlabel("Time t [s]") plt.ylabel("Wave") plt.title("Wave Signal") plt.show() n = time.shape[-1] transform = (fft(y)[:n/2]) * 2./n frequency = fftfreq(n‚time[1]-time[0])[:n/2]
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Film Reflection Good Bye‚ Lenin! I had mixed feelings about the movie Good Bye‚ Lenin! While I enjoyed watching Alex run into new challenges and come up with new solutions in scene after scene I felt the movie became too long and repetitive. I do however think the movie succeeded as a comedy‚ and as a glimpse into the history of Germany. I liked how the Becker used comedy to tell a sad story because it made it easier for the audience to watch. There were also many funny characters that accentuated
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Cosine Transform∗ Gilbert Strang† Abstract. Each discrete cosine transform (DCT) uses N real basis vectors whose components are π cosines. In the DCT-4‚ for example‚ the jth component of vk is cos(j + 1 )(k + 1 ) N . These 2 2 basis vectors are orthogonal and the transform is extremely useful in image processing. If the vector x gives the intensities along a row of pixels‚ its cosine series ck vk has the coefficients ck = (x‚ vk )/N . They are quickly computed from a Fast Fourier Transform. But a
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minor challenges in our life. How we handle them on a daily basis determines our physical‚ as well as our mental well-being. There are three challenges that I will discuss that relate to my life. The first would be‚ adjusting to the extra responsibilities of Higher Education. The second would be‚ learning to balance school and work. And the third would be‚ helping my family adjust to my new responsibilities. Adjusting to the extra responsibilities of Higher Education is the biggest challenge for me
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During the 1860’s and 1870’s Russia had a growing underground movement of young‚ intelligent people growing discontent with the social and political disadvantages that the country was going through. Many in the government‚ especially the Tsar Alexander II was trying to curve revolutionary sentiment by reforming the government and introducing new measures to improve Russian society. To many young Russians that grew disaffected they saw the reforms as being too little too late and that further radical
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Why did Lenin urge a Bolshevik uprising in October 1917? As 1917 ended‚ a pivotal change took place both in politics and social standing as Lenin; leader of the Bolshevik party‚ took control over Russia and plunged Russian society into a period of extreme left wing control. The causation of Lenin’s decision to urge for a Bolshevik uprising is due to a combination of idea’s and beliefs‚ actions and events which resulted in a seizure of Bolshevik control and new age of democratic assembly for Russia
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Sami Alonizi AES165-01/13SP 4th of March 13 The Challenges We faced Moving from Adolescence to Adulthood. Adolescence is a normal stage of human life‚ not a crisis; it is alienation from childhood to adulthood or maturity. This stage accompanies of rapid growth and change of the body. Teenager needs to cope with a range of physical changes and social pressures‚ such as the decisions on the quality of life‚ relationships with others‚ values and beliefs. Adolescence is not only a physical
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no more confined in the cozy corner of their homes. They are also participating in the economy. With this attachment of new role women are facing some challenges too. This research paper deals with those problems that are faced by a working woman‚ in both her personal life as well as professional life. Balancing both the parts is the biggest challenge for any working woman of Bangladesh. Women are now contributing in the family income. They are helping their parents and husbands to live a better life
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In April 1917‚ a month after the Romanov Dynasty in Russia effectively ended with the abdication of Tsar Nicholas II‚ Vladimir Ilich Lenin returned to Russia from exile with a formidable revolutionary mentality. The Tsar’s abdication prompted a period of dual power between select members of the defunct fourth Duma‚ now termed the Provisional Government‚ and the newly formed Petrograd Soviet. This arrangement offered a sense of political stability‚ a stability that was detrimental to Lenin’s quest
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Climate How cold do you think Russia can get? The Russian winter certainly guarantees plenty of snow and frost… but not everywhere. And it doesn’t last forever. Russia’s climate varies dramatically‚ from the deep Arctic chill of the far north to the searing desert heat of some inland areas further south. Yet‚ throughout much of the country there are only two distinct seasons – winter and summer. Spring and autumn are only brief spells of change in between. [pic]Russian winter (photo by Irina
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