Sigmund Freud, Joseph Conrad, And Tadeusz Borowski

Sigmund Freud, Joseph Conrad, and Tadeusz Borowski were some of the most influential voices during 20th century Europe. Europe at the time was transitioning from being one of the most powerful and intellectual nations, to now experiencing human suffering, revolutions, and war. Due to this, these intellectual thinkers began to drift away from 19th-century enlightenment ideas, such as liberty, progress, and a constitutional government. They began to question Europe s achievements and started criticizing progress, rationality, and human nature. Through their experience, ideas, and literature were able to see the what caused the change in society and their views on it . Freud mainly focuses on human nature and questions the desire, ideas ,and beliefs that shape a human, he then further analyses them. We see in his literature, Civilization and its Disconnect, that he questions religion and the belief in God. He himself does not believe in God, but wants to know why many people follow and trust something that they cannot see. He also questions the concept of human relationships. Knowing that a two person relationship and interaction is inevitable and that it is a part of life, but he does not know if a third relationship, and further on, is necessary. Regardless, human relationships are a part of society, and one of causes of civilizations, which Freud defines as â€Å"the whole some of achievement and the regulations which distinguish our lives† (Freud). With one of the achievements

Comparing 1984 And Fahrenheit 451 - 912 Words

Both 1984 and Fahrenheit 451 predict a dystopian future where information is tightly controlled and the populace seems to care little for the fact that they are being lied to and manipulated into working for the ambitions of their government. Both governments in the story have taken control of the media and this the population, and both characters are apart of agencies that help keep the government in control of the people. In Fahrenheit 451 the man is a fireman and burns all of the books that he can find, this keeps the population dumb and easily controllable. In 1984 Winston works for the Ministry of Truth, its job is to help edit news and entertainment in order to keep the party in line and be able to misinform the prolls. Both of these characters unknowingly worked for the party and political establishment. In Fahrenheit 451 Faber a retired English professor was in the minority in fighting for the right to have books. He is an older man and relies on the younger Guy Montag in order to help him achieve his goals of preserving the knowledge of books for a future generation. Guy Montag is a middle aged man similarly to Winston who also works at keeping the political establishment in power through the burning of books. The society within 1984 though much like the society in Fahrenheit 451 has many differences mainly in the way it is set up and how the government runs. The Inner party makes up only 2% of those that live within Oceania. They make all of the policies, andShow MoreRelatedComparing 1984 And Fahrenheit 451928 Words   |  4 Pages1984 and Fahrenheit 451 1984, written by George Orwell, and Fahrenheit 451, by Ray Bradbury, are similar to each other, however they also have several distinct differences. Both 1984 and Fahrenheit 451 are dystopian themed novels that deal with an overbearing and extremely powerful government. The nations in both novels are involved in wars that never seem to end, and their main characters begin to doubt the government and what society expects of everyone. In both 1984 and Fahrenheit 451, theRead MoreComparing Dystopic Worlds in George Orwells 1984 and Ray Bradburys Fahrenheit 451.2257 Words   |  10 Pagesimage of utopia, and yet to the reader seems like a foreign, inhumane residence dominated by an all-powerful government. George Orwells 1984, and Ray Bradburys Fahrenheit 451 depicts two different dystopic worlds. The settings of both books are different and the characters are unique; however, both of these books are also very similar. 1984 and Fahrenheit 451 are similar dystopic literatures by a common theme of censorship in which the government withholds or censors information, by a similar threadRead More 198451: The Year of the Salamander Essay1864 Words   |  8 Pages198451: The Year of the Salamander When comparing the masterpieces of George Orwell’s Nineteen Eighty-Four and Ray Bradbury’s Fahrenheit 451 the astute reader is immediately able to see a minimum of two recurring themes in both of them. â€Å"Orwell had produced an imaginative treatise of totalitarianism, cutting across all ideologies, warning of the threat to humanity should any government, of whatever political complexion, assume absolute power† (Nineteen Eighty-Four 12). Meanwhile Bradbury describedRead MoreDeveloping Management Skills404131 Words   |  1617 PagesConflict 375 SKILL LEARNING 376 Interpersonal Conflict Management 376 Mixed Feelings About Conflict 376 Diagnosing the Type of Interpersonal Conflict 378 Conflict Focus 378 Conflict Source 380 Selecting the Appropriate Conflict Management Approach 383 Comparing Conflict Management and Negotiation Strategies 386 Selection Factors 386 Resolving Interpersonal Confrontations Using the Collaborative Approach A General Framework for Colla borative Problem Solving 391 The Four Phases of Collaborative Problem SolvingRead More_x000C_Introduction to Statistics and Data Analysis355457 Words   |  1422 Pages4 Hypotheses Tests for a Population Mean 550 10.5 Power and Probability of Type II Error 562 10.6 Interpreting and Communicating the Results of Statistical Analyses 571 Activity 10.1 Comparing the t and z Distributions 574 Activity 10.2 A Meaningful Paragraph 575 Graphing Calculator Explorations 580 11 Comparing Two Populations or Treatments 583 11.1 Inferences Concerning the Difference Between Two Population or Treatment Means Using Independent Samples 583 11.2 Inferences Concerning theRead MoreLogical Reasoning189930 Words   |  760 Pagestime, but the only evidence for this was Nathan’s own claim that he was 10 miles away at the time. 4. Evaluate the quality of this argument: All ice eventually melts when heated to over 47 degrees Fahrenheit. The ice in the refrigerator of the President of France was heated to over 47 degrees Fahrenheit that day. So, the ice in the President’s refrigerator eventually melted.67 This is a very strong argument. It is deductively valid and all its premises (there’s just one) are true. 66 The argument

Wavelength Conversion Four Wave Mixing in Silicon Waveguide Free Essays

Wavelength Conversion by Degenerate Four Wave Mixing in Silicon Waveguide Abstract – Four-wave mixing (FWM) is one of the interesting nonlinearities in optical systems. It is mainly used for wavelength conversion. To investigate the factors that affect the wavelength conversion efficiency, the evolution of Four-wave mixing (FWM) in silicon waveguide is modeled using matlab. We will write a custom essay sample on Wavelength Conversion Four Wave Mixing in Silicon Waveguide or any similar topic only for you Order Now The method of modeling is described. The effects of input pump power and waveguide length on the conversion efficiency are investigated. Results show that when propagating along a 0. 048m silicon waveguide, both the input pump power and stroke power decreases, while anti-stroke power increases first and then decreases along the waveguide. It is also shown that for a 0. 048 silicon waveguide, output anti-stroke power is the maximum when the input pump power is 3W. Also, when the input pump power is kept constant, there is a most effective waveguide length for wavelength conversion. Keywords -FWM; model; conversion efficiency; input pump power; waveguide length 1 Introduction Four-wave mixing (FWM) is an inter modulation phenomenon in optical systems, whereby interaction between three waves (two pump waves and a signal wave) produce a fourth wave (idler wave) [1]. This phenomenon can be used for all optical wavelength conversion (AOWC) and entangled photon generation [2, 3]. As extremely small core of si wires produce the nonlinear optical effect even under low optical power, Silicon is used as waveguide in our project for practical wavelength conversion by FWM process with longer waveguide lengths and smaller propagation loss[4]. Factors that affect optical wavelength conversion are being studied to enhance the conversion efficiency. It has therefore become important to study FWM in silicon waveguide theoretically to increase the conversion efficiency for further experiment. In our project, FWM matlab to study the factors that affect the conversion efficiency. This paper discusses the factors that affect FWM’s conversion efficiency in silicon waveguide. Theoretical treatment is presented in section 2, where FWM in silicon waveguide is described. The method to model FWM in silicon waveguide using matlab is described in section 3. Results are shown in section 4. Results show that both the input pump power and the waveguide length play an important part in the FWM’s conversion efficiency. 2 THEORY The FWM process involves the interaction of four waves (two Pump waves, one signal and one idler wave) as they propagates along a medium. In our project, silicon waveguide is used as the medium. The schematic diagram of FWM in silicon waveguide is shown in figure 1. Here, E represents the electric field of the respective waves and normalized such that power P=|E|^2. Subscripts ‘p’, ‘s’ and ‘a’ represent pump, signal and idler respectively. The superscript ‘f’ represents forward propagating waves. [pic] Figure 1 Schematic diagram of FWM in silicon waveguide . 3 METHODOLOGY The evolution of the three waves along the silicon waveguide can be modeled by the following differential equations [1]. [pic][pic][pic][pic] where Aeff is the waveguide effective core area, ? is the wavelength, ? is the linear propagation loss and ? is the TPA coefficient, ? is the FCA cross section and ? eff is the effective carrier lifetime. h and c follow their usual physical meaning of Plank’s constant and free-space speed of light respectively. k denotes the linear phase mismatch and can be expressed as[pic]. ? is the nonlinear parameter assumed to be the same for three wavelengths and defined as [pic] where n2 is the nonlinear refractive index. To simulate the evolution of the three waves along the silicon waveguide, the above four differential equation are solved simultaneously using Runge-Kutta-Fehlberg (RKF) method [2]. | Parameters |Input-Output simulation values | |? |100/4. 34 m-1 | |Aeff |0. 17? 10^(-12) m2 | |? 0. 7? 10^(-11) m/W | |? p |1310? 10^(-9) m | |? eff |1? 10^(-9) s | |c |2. 998? 10^(8) | |h |6. 626? 10^(-34) Js | |? k |0 m/s | |? p |1. 0297? 10-21m2 | |? |2. 43 ? 10^(-11) m/W | 4 RESULTs and discussion . 1 Modelling of FWM in silicon waveguide Given Pp=1W, Ps=0. 001W, Pa=0W and L=0. 048m, Pump power, stroke power and anti-stroke power are drawn with respect to the position in the waveguide. [pic][pic][pic]The figures above show that when propagating in the waveguide, both the pump power and stroke power decrease while the anti-stoke power increases. This is as expected, as the interaction of the pump wave and stroke wave produce the anti-stroke wave. The increase of the anti-stroke power comes from the decrease of the pump and stroke power. It can be seen that, at the end of the waveguide, the pump power is only 0. 26W and the stoke power is only 0. 026W. Both of them decrease 74% of their original power. Both the pump power and stroke power decrease fast at the beginning, and then their decrease rate becomes slower when propagating further in the waveguide. This implies that the higher the pump power and the stroke power, the higher the propagation loss. As a result, the anti-stroke power increases fast at the beginning and then its increasing rate slows down. At the length of 0. 42m, the power of the anti-stroke reaches its maximum value which is about 3. 2*10^-5W. Then the anti-stroke power starts to decrease slowly. This may be because when the pump and stroke power is small, the gain of the anti-stroke power is less than its propagation loss. 4. 2 Effects of input pump power on conversion efficiency Given Ps=0. 001W, Pa=0W and L=0. 048m, Pp changes from 0 to 10W with step 0. 2W. The graph of the output stroke power and the output anti-stroke power are drawn with respect to the input pump power. [pic] Figure 2. 1 Output stroke power with different input pump power This graph shows that the larger the input pump power, the smaller the output stroke power. This is as expected, as the larger the input pump power, the larger the propagation loss. The output stroke decreases slower when the input pump power is higher. [pic] Figure 2. 2 Output anti-stroke power with different input pump power This graph shows that when the input pump power is less than3W, the higher the input pump power, the higher the output anti-stroke power. This is as expected, as more input power can be converted to anti-stroke power when the input pump power is larger. When the input pump power is larger than3W, the output anti-stoke power decreases with the input pump power. As the higher the input pump power, the higher the propagation loss. When the input pump power is larger than3W, the propagation loss dominates. 4. 3 Effects of waveguide length on conversion efficiency To investigate the relationship between the waveguide length and the conversion efficiency, input power are keep constant, Pp=1W, Ps=0. 001W, Pa=0W, L changes from 0. 001m to 0. 1m with step 0. 001m. Output stroke power and output anti-stroke power are drawn with respect to different waveguide length. pic] Figure 3. 1 Output stroke power with different waveguide length This graph shows that the longer the waveguide length, the smaller the output stroke power. This is as expected, as the longer the waveguide length, the larger the propagation loss. The decreasing rate of the output stroke power decreases with the waveguide length. [pic] Figure 3. 2 Output anti-stroke power with different waveguide length This graph shows that when the waveguide length is less than 0. 048m, the output anti-stroke power increases with the waveguide length. This implies that the gain is larger than the propagation loss in the waveguide. When the waveguide length is larger than 0. 48m, the output anti-stoke power decreases with the waveguide length. At waveguide length larger than 0. 048m, the propagation loss is larger than the gain of the anti-stroke power. The output anti-stroke power has a maximum value of 4. 5*10^3 when the waveguide is 0. 048m. Thus, the most effective waveguide length is 0. 048m. 5 Conclusion The conclusion serves the important function of drawing together the various sections of the written report. The conclusion is a summary, and the developments of the previous sections or chapters should be succinctly restated, important findings discussed and conclusions drawn from the whole study. In addition, you may list questions that have appeared in the course of the study that require additional research, beyond the limits of the project being reported. Where appropriate, recommendations for future work may be included. The conclusion should, however, leave the reader with an impression of completeness and of gain. Acknowledgment The author would like to express her deepest gratitude to A/P Luan Feng and PhD student Huang Ying for their guidance, assistance and advices. The author also wishes to acknowledge the funding support for this project from Nanyang Technological University under the Undergraduate Research Experience on Campus (URECA) programme. References The template will number citations consecutively within brackets [1]. The sentence punctuation follows the bracket [2]. Refer simply to the reference number, as in [3]—do not use â€Å"Ref. [3]† or reference [3]† except at the beginning of a sentence: â€Å"Reference [3] was the first †¦Ã¢â‚¬  Number footnotes separately in superscripts. Place the actual footnote at the bottom of the column in which it was cited. Do not put footnotes in the reference list. Use letters for table footnotes. Unless there are six authors or more give all authors’ names; do not use â€Å"et al. † Papers that have not been published, even if they have been submitted for publication, should be cited as â€Å"unpublished† [4]. Papers that have been accepted for publication should be cited as â€Å"in press† [5]. Capitalize only the first word in a paper title, except for proper nouns and element symbols. For papers published in translation journals, please give the English citation first, followed by the original foreign-language citation [6]. 1] G. Eason, B. Noble, and I. N. Sneddon, â€Å"On certain integrals of Lipschitz-Hankel type involving products of Bessel functions,† Phil. Trans. Roy. Soc. London, vol. A247, pp. 529-551, April 1955. (references) 2] J. Clerk Maxwell, A Treatise on Electricity and Magnetism, 3rd ed. , vol. 2. Oxford: Clarendon, 1892, pp. 68-73. 3] I. S. Jacobs and C. P. Bean, â€Å"Fine particles, thin films and exchange anisotropy,† in Magnetism, vol. III, G. T. Rado and H. Suhl, Eds. New York: Academic, 1963, pp. 271-350. 4] K. Elissa, â€Å"Title of paper if known,† unpublished. 5] R. Nicole, Title of paper with only first word capitalized,† J. Name Stand. Abbrev. , in press. 6] Y. Yorozu, M. Hirano, K. Oka, and Y. Tagawa, â€Å"Electron spectroscopy studies on magneto-optical media and plastic substrate interface,† IEEE Transl. J. Magn. Japan, vol. 2, pp. 740-741, August 1987 [Digests 9th Annual Conf. Magnetics Japan, p. 301, 1982]. 7] M. Young, The Technical Writer’s Handbook. Mill Valley, CA: University Science, 1989. 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