My Values Essays - Brian Welch, Converts To Christianity

My Values People have very different reasons on why going to college and getting an education is important for them. Some people go to college because that is what is expected of them, and others go because they have nothing else better to do. However, I am interested in going to college and obtaining a good education because it will benefit my family, my country, and me. My parents have this perfect life for me pictured in their heads, and the first thing they see me doing is going to college. They expect the best of me, and so by going to college, I will not only have fulfilled their goals for me, but I will have accomplished one of the goals I have set for myself. In our culture, when parents come to the age where they can't support themselves, it is the duty of the children to look after them. We don't just throw our elders into retirement homes and visit them twice every year. We are expected to meet their wants and needs, and that will not be possible without a good education, which will then lead to a good job. As you know, a college education is good for each individual, but not only that, it is good for the country. As a college education becomes more obtainable through the use of financial aid, our country benefits the most. We are the future businessmen and women of America, and through our knowledge, the country will grow. The education we get today will help us prosper in the future, and the more we expand our horizons, the more the economy will increase. If students are denied an education because they don't have the means to pay for college, then they are deprived of accomplishing their goals and reaching their fullest potential. In the words of Michael Jackson, ?The dream we were conceived in will reveal a joyful face, and the world we once believed in will shine again in grace.? With the students of today being educated, the people of tomorrow will prosper. Now that I've explained how my going to college is good for everyone else, I must explain why it is best for me. My dreams and aspirations are to be so successful that I am not dependent on anyone else. Ever since I was a little girl, I have wanted to be someone with power. To obtain power, I have to first obtain the knowledge, and to do that, I need to go to college. I have seen people become too dependent on others, and if anything upsets that relationship, the dependent one just crumbles. I don't want that happening to me, so I plan to study hard, make good grades, and be a top executive in a big firm. For me to accomplish that, I will need financial assistance, because my family isn't affluent enough to send three kids to college at the same time. Going to college has been a dream of mine since I can remember, and so I will try whatever it takes to make it there. Getting the financial assistance I need will make things easier for my family and I, so I am applying to many scholarships with the hopes that one of them will come through for me. I don't give up hope, and with the help of God, I will make it to college, and I will graduate and go on to bigger and better things. Acceptance Essays

Free Essays on Guitars

Guitars Guitars Jimmy Hendrix, Eddie VanHalen, B. B. King, Angus Young, Brian "Head" Welch, Fletcher Dragge. What do all of these people have in common? They are all guitar heroes in they're own styles of music. However, because of the different styles of music they play, each guitarist mentioned above uses a different style of guitar. The guitars different body styles and shape help mold the perfect sound for the style you play. From sweet and warm, to loud and thrashing, the guitar is one of the most versatile instruments and can be used for any style of music. Most styles of music (and the legends who made that style famous) have a specific guitar that embodies each genres sound. Jimmy Hendrix, a virtuoso of the 60' era, played a Fender Stratocaster. Eddie VanHalen, know for his innovative "tapping" style solos, Plays a custom peavey guitar called a Wolfgang. B. B. King, a blues guitar legend, plays a signature model Gibson Hollow body. Angus young, lead guitarist for AC/DC, plays a solid body Gibson SG. Head, one of two guitar players for the band Korn, plays an Ibanez 7-string model. Fletcher Dragge, a pioneer in the field of punk, plays a standard series RG Ibanez. To those who don't play guitar these names may be unfamiliar, but to those who play, these guitars cover most of the different sounds you can get out of a guitar. One way a guitar sounds different than other models is the way it is built. Depending on what kind of wood is used the sound can completely change. Some examples of woods used for guitars are ash, pine, sandalwood, rosewood, and maple. The more dense the wood is, the longer the sustain it has (sustain is a term for how long the sound will carry from one attack). Also, the lighter the wood, the brighter tone it has. The wood used for the fret board is also important. Usually it is made of maple or rosewood. Each of these woods has a different feel to it (it is more of a preference for one or the other as op... Free Essays on Guitars Free Essays on Guitars Guitars Guitars Jimmy Hendrix, Eddie VanHalen, B. B. King, Angus Young, Brian "Head" Welch, Fletcher Dragge. What do all of these people have in common? They are all guitar heroes in they're own styles of music. However, because of the different styles of music they play, each guitarist mentioned above uses a different style of guitar. The guitars different body styles and shape help mold the perfect sound for the style you play. From sweet and warm, to loud and thrashing, the guitar is one of the most versatile instruments and can be used for any style of music. Most styles of music (and the legends who made that style famous) have a specific guitar that embodies each genres sound. Jimmy Hendrix, a virtuoso of the 60' era, played a Fender Stratocaster. Eddie VanHalen, know for his innovative "tapping" style solos, Plays a custom peavey guitar called a Wolfgang. B. B. King, a blues guitar legend, plays a signature model Gibson Hollow body. Angus young, lead guitarist for AC/DC, plays a solid body Gibson SG. Head, one of two guitar players for the band Korn, plays an Ibanez 7-string model. Fletcher Dragge, a pioneer in the field of punk, plays a standard series RG Ibanez. To those who don't play guitar these names may be unfamiliar, but to those who play, these guitars cover most of the different sounds you can get out of a guitar. One way a guitar sounds different than other models is the way it is built. Depending on what kind of wood is used the sound can completely change. Some examples of woods used for guitars are ash, pine, sandalwood, rosewood, and maple. The more dense the wood is, the longer the sustain it has (sustain is a term for how long the sound will carry from one attack). Also, the lighter the wood, the brighter tone it has. The wood used for the fret board is also important. Usually it is made of maple or rosewood. Each of these woods has a different feel to it (it is more of a preference for one or the other as op... Free Essays on Guitars Guitars Guitars Jimmy Hendrix, Eddie VanHalen, B. B. King, Angus Young, Brian "Head" Welch, Fletcher Dragge. What do all of these people have in common? They are all guitar heroes in they're own styles of music. However, because of the different styles of music they play, each guitarist mentioned above uses a different style of guitar. The guitars different body styles and shape help mold the perfect sound for the style you play. From sweet and warm, to loud and thrashing, the guitar is one of the most versatile instruments and can be used for any style of music. Most styles of music (and the legends who made that style famous) have a specific guitar that embodies each genres sound. Jimmy Hendrix, a virtuoso of the 60' era, played a Fender Stratocaster. Eddie VanHalen, know for his innovative "tapping" style solos, Plays a custom peavey guitar called a Wolfgang. B. B. King, a blues guitar legend, plays a signature model Gibson Hollow body. Angus young, lead guitarist for AC/DC, plays a solid body Gibson SG. Head, one of two guitar players for the band Korn, plays an Ibanez 7-string model. Fletcher Dragge, a pioneer in the field of punk, plays a standard series RG Ibanez. To those who don't play guitar these names may be unfamiliar, but to those who play, these guitars cover most of the different sounds you can get out of a guitar. One way a guitar sounds different than other models is the way it is built. Depending on what kind of wood is used the sound can completely change. Some examples of woods used for guitars are ash, pine, sandalwood, rosewood, and maple. The more dense the wood is, the longer the sustain it has (sustain is a term for how long the sound will carry from one attack). Also, the lighter the wood, the brighter tone it has. The wood used for the fret board is also important. Usually it is made of maple or rosewood. Each of these woods has a different feel to it (it is more of a preference for one or the other as op...

Competitive Analysis Essay Example | Topics and Well Written Essays - 1000 words

Competitive Analysis - Essay Example Its cost only includes market research, advertising and promotion hence enabling the company to minimize on the cost of production. On the other hand, bottlers are provided by syrup by the concentrators’ where they then they mix it with sugar, treat with local water and carbonate it. Finally, they bottle it and then deliver it to the retailer. All these activities make the bottling business capital intensive as it requires high technology in production. Returns received by concentrate producers greatly differ from those received by the bottlers due to various reasons. The main factors as indicated in the above paragraph are the financial cost incurred by both companies (Fleisher & Bensoussan, 2007). Bottlers for instance incurs low cost of production as it only concentrates mainly on advertising, market research and product development whereas bottlers activities involve investment of huge amount of capital as its main concern is to archive its main goal of improvement and mod ernization of the bottling lines which as a results requires high amount of capital (Fleisher & Bensoussan, 2007). Secondly, the other cause of variance in returns is the availability of raw materials. The concrete producers require fewer raw materials hence its major spending is on purchase of cheap inputs like citric acid, natural flavors and also caffeine; on the other hand bottlers require large number of production materials. They invest in purchase of inputs such as packaging materials like cans, bottles and also sweeteners such as aspartame which prove to be expensive hence reducing their profitability as they are unable to reduce on the outflow of money (Fleisher & Bensoussan, 2007). The returns received by bottlers are also less than those received by the concentrate producers due to the risk levels each of the company face. Concentrate producers are responsible for the brand promotion and also invest hugely on trademark to stimulate sales; on the other hand, bottlers have little risk in their operations as they already have an advantage i.e. have a famous name which is well known all over the world .This development provide them with stable returns and low risk (Bensoussan & Fleisher, 2008).

The Death of Ivan Ilyich, Tolstoy Essay Example | Topics and Well Written Essays - 1000 words

The Death of Ivan Ilyich, Tolstoy - Essay Example He has family, friends and a good position that he devoted a major part of his life in cultivating. As a result he has political, personal and social freedom. Ilyich’s free and easy life is pleasant with decorum and lightheartedness, and his nature is agreeable. Through this narrative, Tolstoy studies both life and death, Ivan’s realization about his life not truly lived, and his eventual making of peace with the inevitability of death. Thus, only in his last moments does Ivan Ilyich lose his fear of death, and joyfully perceives the light which replaces it (Tolstoy 56). Great scholars such as Vladimir and Mahatma Gandhi acclaimed the novella as the greatest in Russian literature. The work is interesting to read, rich in insights about human nature, and educative in its content. Thesis Statement: The purpose of this paper is to examine Leo Tolstoy’s story The Death of Ivan Ilyich, and discuss why the main protagonist’s life was not truly lived. Why Ivan Il yich’s Life was not Well Lived Tolstoy through his story insists that Ivan Ilyich is not different from others in the world, and that his extremely simple and ordinary life is â€Å"most terrible† (Tolstoy 9). ... The author depicts his protagonist as a selfish, short-sighted and mediocre person, since the latter’s ideal goal in life was to avoid unpleasantness. Ilyich’s main pleasures in life included playing bridge with his friends, besides liking antiques and living properly and pleasantly. However, it is evident that none of these normal, ordinary qualities can condemn Ilyich as wicked. This is the exact message that Tolstoy wishes to convey to the reader. While Ivan’s existence was akin to living death, his death is a rebirth into a new spiritual life. Therefore, his fatal flaw was that he had lived in a spiritual void (Hobby 34). According to Tolstoy, the fact of living and life ironically includes the certainty of death. Living with pain and illness everyday, Ivan Ilyich suffers for several months while refusing to accept the inevitability of his death (Tolstoy 7). The core of his life had consisted of emptiness, self deception and false values. Most human beings, i n the process of living, we commonly deny the truth of our human condition, pretend to forget about death; and this lie forms a part of the other lies that vitiate our beings. This means that Ilyich had been â€Å"living a literal, physical life but had been spiritually dead† (Hobby 34). Olney’s (p.110) analysis of the story differentiates between â€Å"life as experience† and â€Å"life as meaning†, and states that Tolstoy’s vivid representation through the fictional narrative helps the reader comprehend the truth that was present in the author’s own soul. For Tolstoy the actual meaning of life was different from indulgence in parties, tastefully decorating one’s home, and other

Chapter 4 Essay Example | Topics and Well Written Essays - 500 words - 5

Chapter 4 - Essay Example Second class contains functional fibers which include isolated or extracted non-digestible carbohydrates. Fibers are important as they decrease the chances of intestinal disorders. Various functional fibers such as gums and pectin cause development of gums in the stomach which slow down the transmission of food. Fibers are also known to control blood cholesterol levels, because soluble fibers bind to cholesterol from food objects and reduce its absorption. Fiber intake can be helpful in reducing intestinal disorders and hence the daily recommended dosage which is 25-38 grams should be made common. Knowledge regarding dietary fibers should be incorporated into careers. I, being related to the medical field put my knowledge of fibers into practice. Dietary fiber if taken in the right dosage can be a factor for prevention of intestinal and other disorders. One of the most common symptoms a patient present with is constipation. The best solution to relieve constipation is the usage of fiber in diets. Patients can be counseled that there are no cons to the usage of fibers. Patients should also be told that the daily recommended dosage of fibers in the diet. Patients visiting the doctor should also be educated on which food items contain how much percentage of fibers. The significance of dietary fiber and its need in the diet is known by many people but there are still many confusions amongst them. The misunderstood thing is that fibers are present in plants that we eat but it needs to be known these parts of plants are not digested in our body and are rather left undigested. Dietary fibers have their pros and cons. These can be misleading and a thorough understanding is necessary. Various fibers such as gums and pectin are harmful as they provoke formation of gum like material in the intestine which hinders the transport of food materials resulting in low glycemic action of food items. Different fibers have different functions in the human body

Multipath Fading Channels And Transmitted Signals Computer Science Essay

Multipath Fading Channels And Transmitted Signals Computer Science Essay Multipath fading is a phenomenon of fading of transmitted signals due to refraction, reflection and diffraction from objects or obstacles present in the line or way of transmission. In this article, we have be realized an example of multipath fading channels such as in case of Rayleigh fading channels using MATLAB and would be analysing the variations incurred after varying system parameters such as samples per second and Doppler shift of the respective blocks of the Rayleigh fading system. Also, here screen shots of the respective variations have been provided for clear understanding of induced variations. 1. Introduction As mentioned earlier as well, multipath fading is the occurrence of fading of transmitted signals by refraction, reflection and diffraction due to obstacles present in the line or path of transmission and channels affected due to this type of fading are called multipath fading channels. Rayleigh fading is nothing but the statistical model that communication engineers use to study the characteristics propagation of radio signals, in case of wireless propagation channels. In general, Rayleigh fading model is used for studying ionospheric and tropospheric signals propagation and such that the signals are transmitted in a widespread manner i.e. they are transmitted in form of concentric rings throughout the atmosphere. Thus, these are not used to study the fading that occurs in line of sight propagation (for that Rician is preferred over it). The Rayleigh fading channel can be used to study fading characteristics such as in cases of densely populated cities with a large number of skyscrapers (such as Central London and NYC). The central limit theorem limits this concept such that the amount of scatter can be considered as a function of irrespective of individual function of Gaussian distribution. The impulse response can be modelled a random function varying from 0 to 2pie [1]. The probability distribution function R(of Rayleigh fading) can be given as; Where, ÃŽÂ © =  E(R2). [1] As mentioned in abstract that we would be varying the Doppler shift in case of Rayleigh fading and will be explaining the observed variations in the generated output, its better to have an understanding of what Doppler shift actually means as well for better understanding of concepts. Doppler effect (or Doppler shift) can be described as the increase or decrease in Doppler frequency in case of a moving object (for e.g. the Doppler frequency increases when the object is moving towards the stationary or moving object and vice versa for moving away from the desired moving or stationary object). The mathematical expression for Doppler frequency can be given as; f = left( frac{v + v_r}{v + v_{s}} right) f_0 , Where Vr is the velocity of receiver relative to the medium and Vs is the velocity of source relative to the medium and V is the velocity of waves in the medium [2]. Also, Doppler power spectral density which is also an important parameter of Rayleigh fading is the measure of spectral broadening caused in the waveform characteristics of the transmitted signal (such that the received signals appears to be faded and broadened as compared to the actual signal sent). The mathematical expression for Doppler power spectral density can be shown as [3]; S(nu) = frac{1}{pi f_d sqrt{1 left(frac{nu}{f_d}right)^2}} Realization of Rayleigh fading using MATLAB A sample program of Rayleigh fading can be accessed in MATLAB 2010a by typing the command doc_qpsk_rayleigh_derotated in the command window. The MATLAB operator gives us a block diagram of the Rayleigh fading. It consists of a Bernoulli binary sequence generator, two QPSKs, one error rate calculator, one Rayleigh fading block (where adjustments regarding Doppler shift can be made), one phase removal of path gain block and in the end an AWGN block for simulation of faded signal (4). The screenshot of block diagram for Rayleigh fading had been shown below; Figure 1. MATLAB screenshot of the block diagram for simulating the Rayleigh fading 2.1 Simulation with basic values of Doppler shift and sample rate The simulation results into three possible outputs. These are transmitter output, Rayleigh channel output with no phase component and Rayleigh noisy channel output with no phase component. These outputs for sample simulation with bit sample rate/sec of 100logbase2 (M) and maximum Doppler shift of 1000 hertz is shown below. The screenshots of respective output of QPSK modulator output, Rayleigh channel output and noisy Rayleigh channel output has been shown below; Figure 2.screenshot of MATLAB simulated QPSK modulator output for Rayleigh fading Figure 3.screenshot of Rayleigh channel output for Rayleigh fading (simulated using MATLAB) Figure 4.screenshot of the noisy Rayleigh channel output for Rayleigh fading (simulated using MATLAB) 2.2. Simulation with changed values of Doppler shift and sample rate In the second simulation i have changed the values in Doppler shift and sample rate per second. The Doppler shift can be changed by changing masking parameters in the Rayleigh fading channel. Here, in this simulation I have kept the Doppler shift to 10000Hz while in previous case it was 1000Hz. Also, in Bernoulli bit sequence generator the value of samples per second had been changed to 1000logbase2 (M). The observed variations have been shown below. Figure 5. QPSK modulator output of the Rayleigh fading (simulated using MATLAB) Figure 6. Rayleigh channel output for the Rayleigh fading (simulated using MATLAB). Figure 7. Noisy Rayleigh channel output for Rayleigh fading (simulation using MATLAB) 2.3. Explanation of the observed variations It can be seen that in first case the outputs (amplitude) of QPSK modulator lies in the range of -1 to 0 and 0 to +1 while it varies from -2 to 0 and 0 to +2 which obviously should be observable as the samples per second gets increased from 1000 to 10000 samples per second. However, as the Doppler shift is increased the fading becomes more visible in case of the Rayleigh fading and noisy Rayleigh fading channels. The explanation can be given using Jakes model which relates the Doppler shift and Rayleigh fading. Jakes model relates the Rayleigh fading for kth wave to Doppler shift in following manner; R(t,k) = 2sqrt{2}left[sum_{n=1}^{M}left(cos{beta_n} + jsin{beta_n}right)cos{left(2 pi f_n t + theta_{n,k}right)} + frac{1}{sqrt{2}}left(cos{alpha} + jsin{alpha}right)cos{2 pi f_d t}right] Also, fn=fd(cosa) [5] Hence, it can be said that the amount of Rayleigh fading is directly proportional to the cosine of Doppler shift experienced by the transmitted wave. Also, worth mentioning over here is that is cosine decreases from 0 to increasing values of angle. It can be also seen that from expression mentioned above for power spectral density for Doppler shift that if the Doppler shift is increased the corresponding power spectral density is also increased. Thus, the results shown in the screenshots are explained and justified and it can be said that with the increase of Doppler shift the transmitted waves the Rayleigh fading is increased and so is the power spectral density related to it. Conclusion Rayleigh fading is an important phenomenon used to explain multipath fading in case of the dense populated areas. Rayleigh fading affects a transmitted signal by making broadened and faded in nature and it also does effects its power spectral density in a big way. Also, with increase in Doppler shift the Rayleigh is increased as well. In this setup, channel distortion parameters such as gain and phase are defined as a complex number consisting of real and imaginary parts. Thus, Rayleigh fading can be said to be composed of two paths (real and imaginary) and can be considered as independent paths which can be added in order to get net magnitude of Rayleigh fading occurred in the transmission [6]. To counter the effects of Rayleigh fading a number of techniques were used in the past but the most common one used these days is using a White Gaussian simulator for maintaining bearable effects of Rayleigh fading. This had been shown in the block diagram shown above. References Proakis John. G (1995).  Digital Communications  (3rd Ed.). Singapore: McGraw-Hill Book Co. pp.  767-768.  ISBN  0-07-113814-5 Rosen, Joe; Gothard, Quinn Lisa (2009). Encyclopedia of Physical Science. Infobase Publishing. p. 155. ISBN 0-816-07011-3., available on page 155 Clarke.H.R. (July-August 1968). A Statistical Theory of Mobile Radio Reception. Bell Systems Technical Journal, page number 957-1000 Arsal. A, Ozen. S(2008), A Rayleigh fading  ¬Ã‚ lter design for multipath Rayleigh fading simulation and comparisons to other simulators Jakes. C. Williams, Editor (February 1, 1975). Microwave Mobile Communications. New York: John Wiley Sons Inc. ISBN 0-471-43720-4. Proakis John. G (1995).  Digital Communications  (3rd Ed.). Singapore: McGraw-Hill Book Co. pp.  767-768.  ISBN  0-07-113814-5 Spread Spectrum Models Abstract Spread spectrum is a statistical modulation technique that is been used for increasing the available channel bandwidth. In this article we have focussed on the one the spread spectrum models i.e. two users real spreading with BPSK modulation using MATLAB. Also, a brief study of variations and the explanation of such observations are made in this article. Here, Ill be varying the SNR value of the AWGN block in the given block diagram for the spread spectrum model and would be observing and explaining the variations occurred. 1. Introduction Spread spectrum modulation is a type of modulation in which we intentionally increase the available bandwidth in frequency domain i.e. we stretch the available bandwidth. This leads to a broadened or widened signal for with increased bandwidth. This is generally done to increase bandwidth for signals that require more bandwidth for transmission (it has an effect similar to aliasing but the difference we take anti-aliasing measures against the later). The system models that use such spread spectrum techniques are called spread spectrum models. Two user model for real spreading with BPSK modulation basically utilizes two different orthogonal codes for spreading of the codes. The process of spreading is independent in nature i.e. a different pn sequence for each of the two users. This model uses the orthogonal frequency division multiplexing access technology (OFDM) for communication between the two users simultaneously. In this scheme, there are a large number of orthogonal sub carriers separated by a very small distance. The data is then divided into small but same sized chunks and then are loaded (modulated) on these orthogonal sub carriers through multiple paths [1]. The subcarriers then can use any of the conventional technologies for modulating these data packets (such as QAM or PSK) for transmission over the channel. Also, the symbol rates for individual data packets are maintained such that those comparable to its conventional counterparts. However, OFDM is more popular with wireless systems. 2.1. Realization of spread spectrum model using MATLAB Two user orthogonal real fading with BPSK can be realized in MATALAB by typing commspreading_orthobpsk2u in the MATLAB command video. The result shown on the MATLAB simulation window is a block diagram of two user real spreading with BPSK. The screenshot of this has been shown below; Figure 1- Two-user orthogonal real spreading with BPSK modulation (simulated in MATLAB) As shown in the block diagram here the system setup can be broadly classified into three sections. These are transmitter section, the channel and then receiver section. Receiver section is further extended into one more section known as error calculation section. Let us have a brief look into each of the sections mentioned above. 2.1.1 Transmitter section The transmitter section is responsible for transmitting signals to receiver section via channel section of the system setup. Transmitter section is basically made up 5 major components, these are Random integer (signal generator), real BPSK modulator, Hadamard code generator, normalized gain and spreader blocks. Random integer block is used for the generation of signals that could be used for sending over the channel. These signals are then BPSK modulated where it is also mixed with the actual user signals and sent to spreader section. The sequence generated is of 64 bits length. Then on the lower side of the transmitter contains Hadamard code generator which generates unique Hadamard codes for the signals encryption and security to protect it from hacking and noise addition over the channel. The gain of the Hadamard code is then normalized and mixed with the BPSK modulated signal in the spreader section. The spreader is responsible for the deliberate spreading of signals in the frequency domain to increase the bandwidth of transmitted signal. 2.1.2. Channel section Channel section here refers to actual channel or medium through which transmission is done. But here its not wireless as it is an experimental setup. This section here contains AWGN correction blocks. These are responsible for deciding SNR values for the transmitted signals as to gain knowledge about the actual signal transmission through wireless medium. Here, a person can set values of SNR such that to determine the low and high noise environment and the results of these variations of the error rate at receiver section. 2.1.3. Receiver section The receiver section is responsible for the reception, decryption, de-spreading and calculation of error rate in the received signals after travelling through the physical medium. The process carried out here is just opposite as of transmitter section of the setup. The received signal is first sent to de-spreader for removing the spreading done in transmitter section. The integrator and dump section is used to detect or separate out RZ and NRZ parts of bit sequence [3]. Then the sequence is sent to demodulating BPSK section and then to error rate determination section for error rate estimation. 2.2. Effects of Variations in SNR on the Error rate The effects of variations of SNR on the error rate have been summarized below. The table below shows the variations in values of SNR and the corresponding changes in error rate i.e. eRx/Rx (number of erroneous bits transferred /total bits received [2]) with de-spreading. Also, worth mentioning here is that the time period for which the simulation is carried by the system is set to 0.125 seconds in this sample spread spectrum modulation. The table is as under; Figure 2. Table above depicts the effect of variation of SNR on the error rate of the system setup explained above (all values are realized in MATLAB and written down in the table) The table above shows that with increasing values of signal to noise ratio the value of bit error rate is reduced. But it is different in first two readings for receiver1 and receiver2 while it ends out to be zero for SNR value 100 dB for all of the values simulated in a time defined range of 0.125 seconds. This pretty understandable that the dispreading used is here is of ideal nature thus the value of erroneous bits goes down as value of SNR increases. The difference in the error rates between the first two readings of receiver1 and receiver2 is pretty understandable as the two different signals have different error rates when they are transmitted through two different Hadamard codes (i.e. initial seed for first receiver was set to 37 and for second it was set 631). 3. Conclusion Two user orthogonal real fading with BPSK modulation is used as an experimental to study the characteristics of spread spectrum. The OFDMA as we know splits the large data into small equally sized fragments and transmits it through multiple paths thus is also affected by multipath fading. This particularly affects wireless channels even makes is even more difficult to maintain SNR and low error rates. To counter the effects AWGN simulator is used such that the effects of multipath fading are neutralized. The observations made with this system setup prove that value of SNR affects the error rate percentage in the transmission. As the value of SNR is increased the value of error rate goes down and vice versa for a lower value of SNR. References 1. Robertson. P; Kaiser .S; The effects of Doppler spreads in OFDM(A) mobile radio systems, Vehicular Technology Conference, 1999. VTC 1999 Fall. IEEE VTS 2. Shah .Gaurav ; Molina. Andres ; Blaze. Matt (2006); Keyboards and Covert Channels 3. Sadr, R.; Hurd, W. J.; The Telecommunications and Data Acquisition Report, page 158-173 (ISBN N88-12679 04-32) 4. Aurthur. Ross (1997); CA Patent 2228131; data available on http://www.mathworks.com/products/commblockset/demos.html?file=/products/demos/shipping/commblks/commspreading_m.html#1 5. MATLAB code available at http://www.mathworks.com/products/commblockset/demos.html?file=/products/demos/shipping/commblks/commspreading_m.html#1 IEEE 802.11 WLAN Abstract IEEE 802.11 is the standard adopted by IEEE for design of wireless network systems. Here, in this article a sample simulation of 802.11 standard is done using MATLAB and Simulink. Also, a brief description of operation and functional characteristics of blocks (i.e. components) used for attaining and maintaining wireless networks have been made. Also, certain parameters of WLAN system setup are varied to make a brief study of changes that incur in the system due to these variations. 1. Introduction Secure, dependable and fast wireless systems have become a need of current growing world that touches everyone ranging from individuals to large organizations. Wireless networks are needed for small private area networks such as Bluetooth and Ad Hoc and large networks for wider network coverage such as 3G and 4G networks are currently being employed for providing internet and communication services to people with mobility. The WLAN 802.11 standard is used for wireless communication networks in 2.4, 3.6 and 5 GHz frequency bands [1]. There is a complete family of 802.11 which uses a number of over the air modulation techniques for transmission and reception of signals. There a number of versions launched by IEEE under the name of 802.11, this includes 802.11a, 802.11b, 802.11g and 802.11n. The most frequently employed among these are 802.11b and 802.11g. The data to be transmitted is first broken in small and equally sized packets and then modulated and transmitted on multiple channels (through different paths) to the destination. Thus, it uses OFDMA access for setting up communication. 802.11 standard has a complete frame stack for secure and dependable communication. These include certain frames for controlling and maintaining the wireless connection among wirelessly connected hosts. These are Protocol version, Type, Sub type, ToDS and FromDS, More fragment, Retry, Power management, More data and WEP [2]. All these play important part in setting, maintaining, controlling and releasing the wireless connection among a number of wirelessly connected hosts on 802.11 system. Below is shown a sample example of how 802.11 WLAN standard system looks like. Figure 1. The Linksys WRT54G contains an 802.11b/g radio with two antennas [3]. 2.1. Realization of IEEE 802.11 WLAN standard in MATLAB A sample MATLAB program for IEEE 802.11 WLAN can be realized in MATLAB by typing the same in help command box of the MATLAB. The output shows an experimental setup containing block diagram of the IEEE 802.11 WLAN system. This has been shown below. Figure 2- The screenshot above shows the block diagram of the sample IEEE 802.11 WLAN standard simulated in MATLAB The block diagram broadly contains variable-rate data source, BPSK modulator and demodulator, OFDM symbol generation block and disassemble OFDM frame block, multipath channel and a packet error calculation block. Also, the signal visualization block for opening the signal characteristics of such setup. These signals characteristics are shown below. Figure 3-The signals transmission and receiver characteristics of the 802.11 system setup using sample settings (simulated in MATLAB) 2.2. Operations and working of the Block diagram The signal characteristics can be visualized in the above screenshot. The transmitted data consists of a binary stream of data send with OFDMA modulation. In this model shown above the variable rate data source is used to generate a binary string of variable data rates which could be considered as similar to the real life scenario as data rates vary with time and need of the users. This binary string is then BPSK modulated using BPSK modulator which is the case with OFDMA as it uses any other general modulation technique for the modulation of signals and then OFDMA codes are added to it. The signals are now undergo a number of alterations before reaching the multipath channels. These include adding a cyclic code to the signals and going through IFFT which is inverse fast Fourier transform to the signal. The signals are then sent through multiple paths which is the case with the OFDMA. This completes transmitter section. After all these processes the signal enters the receiver section of the WLAN. The signals go through cyclic code removal block and then FFT or fast Fourier transform block to anti the effects of IFFT. Then signals are equalised in frequency domain as these get disturbed in frequency domain as shown in the figure 2 signal equalization. The disassemble OFDM block takes off the OFDM codes from the signals and then the signals is demodulated using a BPSK demodulator after which the signal output is sent to the error collection block where the original and received signals are compared to get error rate in the transmission. Also, one more output wire goes to adaptive modulation control block where the degree of modulation is controlled according to the bit error rate achieved by the system. Also, the value of SNR is varied according to the values entered in the stack. This also changes the adaptive modulation control. 2.3. Effects of variations in certain parameters of IEEE 802.11 WLAN setup The effects of inducing variations in certain parameters such as SNR or hysteresis are visible in the transmission characteristics of the block diagram shown below. These values are achieved after changing the value of hysteresis value for adaptive modulation to 10dB from 3dB and lower SNR threshold values to [10 11 14 18 22 24 26 32] decibels from earlier value of [10 11 14 18 24 26] decibels. It can be seen from the two figures 3 and 4 that the unequalized signal spreads out more. Also, the per i.e. packet error rate is increased from 6% to 12%. This due to increased hysteresis for adaptive modulation control. Conclusion The IEEE 802.11 standard for wireless LAN is used as a standard for setting up the wireless network for communication of multiple numbers of hosts. Also, in this sample simulation we concluded that with varying values of SNR and hysteresis the BER and PER also changes. Thus, it can be also concluded that data rates and packet loss rates are also variable at variable places in the parts of networks. This due to different distances, landscapes and congestion is different for different areas as the signal transmission follows multiple paths for transmission and every single path has a different type of obstacles available. Also, the system is greatly affected by noise present in free space. The reception quality always decreases with increase in distance between the service provider and host.

Kurt Vonnegut Jr. :: Essays Papers

Kurt Vonnegut Jr. Kurt Vonnegut, Jr. was born November 11, 1922, in Indianapolis, Indiana, the son of, Kurt Vonnegut, Sr., a successful architect, and Edith Sophia Vonnegut. He had two older siblings, a brother Bernard, and a sister Alice. He attended Short ridge high school. This is where he first realized his talent for writing. He was the editor of the school newspaper. Kurt graduated in 1940, and after high school, attended Cornell University and studied bio-chemistry, and was also a columnist and editor of the Cornell daily sun. However, because of bad grades, Kurt found himself almost flunking out of Cornell University. He saved himself from expulsion by joining the army in 1942. While in the army, several devastating experiences happened to Kurt. First in 1944, he received the news that his mother had committed suicide. A few months later Kurt was captured by the German Army. He was forced to produce a vitamin enriched malt for pregnant women. While doing this he happened to survive the firebombing of Dresden. His book Slaughterhouse-five is partially about the bombing of Dresden. After being rescued by the Soviets, Vonnegut returned home. He was working as a Police Reporter for the Chicago News Bureau and studying anthropology at the University of Chicago. He later moved to Schenectedy, New York. Here he worked in Press Relations for the General Electric Plant. This experience that led to the creation of his first novel Player Piano, . It was after the publication of this novel that he moved to Rhode Island, while in addition to writing short stories, he taught High School English and opened the first Saab dealership in the United States. After realizing the shrinking of the Short Story market, he began concentrating entirely on

“The Veldt” Essay Essay

Technology and its Bad Effect on Families Imagine holding so much engineering that your childs start to believe of it as their female parent and male parent. The narrative â€Å"The Veldt† by Ray Bradbury uses many literary elements to demo the audience that excessively much engineering can destruct a household. In the narrative. two childs and their parents live in a Happylife Home that does their mundane undertakings for them. The children’s parents. George and Lydia. are traveling to larn that giving their kids excessively much engineering is traveling to take to bad events in the hereafter. Through the usage of struggle. scene. and characterization Bradbury conveys that excessively much engineering can destruct a household. By depicting the struggles between the Hadley’s. Bradbury conveys that excessively much engineering can destruct a household. In the narrative. Peter gets into an statement with his pa who wants to turn off the baby's room. It is a good illustration of the struggle between them two. He says to his male parent. â€Å"I wish you were dead† ( Bradbury 7 ) . This shows that Peter has so much engineering in his life and now that his pa threatens to turn it off. he wants his pa gone. In add-on to this piece of grounds. Bradbury explains the psychologist look intoing in with the baby's room and what he finds out about it. â€Å"You’ve Lashkar-e-Taiba this room and this house replace you and your married woman in your child’s fondnesss. This room is their female parent and male parent. far more of import in their lives so their existent parents. And now you come along and want to close it off. No admiration there’s hatred here† ( Bradbury 6 ) . This shows how Wendy and Peter have so much engineering in their lives. that it is replacing their parents and making a struggle between them. The childs don’t want their parents around any longer since they have this engineering. Through the descriptions of the struggles between the Hadley household. readers see how so much engineering impacts them throughout the narrative. Through depicting the scene of the narrative. Bradbury conveys that excessively much engineering can destruct a household. In the narrative. the scene is largely the Happylife place that the Hadley’s live in and is described by Peter kicking that he may hold to make undertakings himself. â€Å"That sounds awful! Would I have to bind my ain places alternatively of allowing the shoe grade make it? And brush my ain dentition and comb my hair and give myself a bath? † ( Bradbury 5 ) . This shows how the childs are so used to holding engineering do everything for them that when their parents endanger to turn it off. they are forced to believe about what they might hold to make and they don’t want it to go on. Furthermore. Bradbury explains the scene of the baby's room as being the African Veldt. â€Å"He stepped into Africa. How many times in the last year†¦with slaying in the heat† ( Bradbury 3 ) . This shows how this engineering is showing the childrenâ €™s ideas onto the walls of the baby's room which happens to be the African Veldt with hungry king of beastss. Besides. the usage of the word â€Å"murder† in the quotation mark is a mark of what is traveling to go on to the parents subsequently in the narrative. By puting the scene of the narrative with descriptions of the scene. readers can see how Bradbury expresses how excessively much engineering can destruct a household. Last. Bradbury demonstrates that excessively much engineering can destruct a household by depicting the character’s personalities. In the narrative. George shows that he can be serious when needed while in an statement with Peter about turning off the house. â€Å"I won’t have any menaces from my son† ( Bradbury 7 ) . This shows that Peter is so spoilt that when his pa wants to take engineering off from Peter. he threatens his pa which is traveling to take to more household struggles subsequently on. Additionally. Bradbury explains the psychologist’s visit to look into the baby's room and figure out what’s incorrect. â€Å"How come you didn’t feel this before? † ( Bradbury ) . This shows that since the last clip the psychologist checked the baby's room. the kids have gotten more destructive heads and ideas that create the African Veldt all because of how their parents have been handling them. The psychologist used the engineering to ca lculate out how the kids have bad ideas toward their parents. which is traveling to ensue in the ruin of their household. Through the descriptions of these characters’ personalities. readers see the negative impact engineering has on this household. Ray Bradbury demonstrates to the reader of â€Å"The Veldt† through the usage of struggle. scene and word picture that excessively much engineering they had in the baby's room and the whole house. In the terminal. the childs end up killing their parents in a surprise stoping. Bradbury makes a great point in composing about the hereafter to non let excessively much engineering into this universe because it could take over and take to bad events.

Essay on International Project Management Association

Essay on International Project Management Association Essay on International Project Management Association Essay on International Project Management AssociationThe article considered in this paper is named About IPMA. IPMA, or International Project Management Association, is an international associations of project managers (Management Mania, 2012). The source of the article is the website of IPMA. The relevance and trustworthiness of this article are high because the optimal source of information about the purpose and goals of the organization is its dedicated resource (such as website).The article describes IPMA organization and its members, outlines vision and mission of the organization, its history, the methods of running the organization, initiatives supported by IPMA and the goals of the organization pertaining to growing, expanding and moving the project management practices forward.IPMA operates as a federation which includes 55 Member Associations (IPMA, 2014). The goal of the organization is to promote project management, to introduce standards of project management, to help de velop project management practices and to establish guidelines in project management. IPMA was founded in 1965 and was the first organization for project managers at that time (IPMA, 2014). The staff of the organization consists of volunteers, and the development of the organization is driven by its members. IPMA encourages collaboration and organizes regular meetings in different geographic locations. The services of IPMA are provided worldwide.The organization formulated and promoted a line of project management competencies referred to as IPMA Competence Baseline. IPMA has a certification program and issued more than 160,000 certificates by the end of 2013 (IPMA, 2014). These certificates are recognized in more than 50 countries which are members of IPMA.This article is highly relevant and important for project managers. Project management is a multifaceted profession which requires having many skills and competencies. IPMA competency list can be used by existing or future projec t management professionals; furthermore, project managers who want to gain new skills or improve their professionalism can use both the competency baseline and certification programs of IPMA. Since IPMA certificates and membership are recognized in many countries, participating in IPMA programs is an efficient option for those who pursue a career in project management.

100 Amazing Topics for Your Strong Persuasive Essay

100 Amazing Topics for Your Strong Persuasive Essay 100 Great Topics for Your Persuasive Essay Often students are given the topic before starting their assignment. If you ask average scholars what they think about choosing a topic on their own, they would probably say that it’s associated with additional problems. In fact, choosing a topic on your own can be a great advantage if you have a correct understanding of how to do it right. If your teacher gives you a chance to decide on a topic independently, you can pick up the theme that is interesting and familiar to you. Moreover, you can check if there are enough free and available information sources for writing an essay before making your final choice. If you are given a task to write a persuasive essay and to choose its topic on your own, use this opportunity. It’s only enough to spend around 10-20 minutes to learn how to choose the topic correctly and our article is aimed at helping you with this. Why Students Write Argumentative Essays Instead of Persuasive Essays Before giving you a list of topics, we want to speak about the difference between argumentative and persuasive essays. The problem is that many students can’t tell these two types of essays apart and make a huge mistake writing an argumentative essay instead of the assigned persuasive paper. Both types have quite similar aims and it’s not easy to understand how they differ. We’ve found a definition that will make you see the features of the different types easier: Argumentative essay shows your point of view on a problem or a subject. Explaining something, you tell the reader that there are also other possible ideas about the topic, however, you choose the one you speak about due to some reasons. You explain your idea but you allow your reader to think differently and to decide whether to support your point of view or not. Persuasive essay also speaks about your point of view on a certain topic. However, this time you use the facts and statements to prove that your point of view is the correct one, the most practical or ethical one. Step by step, you have to show that different points of view are less logical. Your final aim is to make a reader support your idea. Understanding the difference between the two types, you can also see a clearer and more correct way of picking up a topic for your persuasive essay. 100 Topics for Your Excellent Persuasive Essay Working with the list of topics, you can choose a ready topic and start to work on it or to take it as an inspiring sample and to create a similar theme for your future essay. Topics for Elementary Scholars Is it allowed to have a wild-born animal as a pet? Is it better to be the only child or to grow up in a big family? If you found a home of a rare animal on your yard, would you give it to the laboratory or to the local zoo? Is having a superpower making you a better person? The best holiday of the year is Birthday/Christmas/New Year’s Eve. If the invisible potion is discovered, shall it be given to people unrestrictedly? A shop assistant/waiter/bus driver is the worst job in the world. Shall parents encourage their children to choose school/friends/bedroom decor independently? Shall we stay friendly with everyone? Shall having an expensive gadget influence the way others see us? Topics for High School Scholars Will the return of the death penalty scare criminals from committing a crime? Is it safe to allow people to change their names any time they want? Shall we pay attention at moral and personal qualities of a president? Is younger generation better adapted for positive changes in the world? Can fashion be harmful to society? Shall reach people pay extra taxes to help those who are poor? Is lowering the voting age is a good idea? How to reduce the level of crimes among high schools students? Shall privacy be violated for national security? Topics Connected to Education Existing disciplinary means are outdated to control modern teens. The modern way of holding exams and academic tests may be harmful to the development of creativity and critical thinking? Shall IT students be encouraged to create their own entertaining applications and video games? How to provide an equally high level of education for children in big cities and rural areas? Shall children with different types of disabilities study in separate classes? What is the most effective way to stop bullying among kids? Is it necessary to have a special uniform for teachers? Shall physical training lessons be held by professional sportsmen? Which measures can be taken to motivate students with lower marks? Can video games encourage students to use guns at school? Topics Connected to Technology and Scientific Progress How environmental protection can be improved on a local level? Can robots with artificial intellect replace humans completely? Shall fuel be replaced with alternative sources of energy? Is global warming a natural process that doesn’t depend on the activity of humans? What is the alternative for genetically modified food? Is terrorism the most common reason for the modern plane crash? The role of the human in the extinction of rare animals and plants. Is it ethical to restrict a number of children in a family in order to control the growth of the population? How soft drugs can be used in medicine? The ethical side of cloning animals. Topics Connected to Nature Are zoos helpful for protection of rare species of animals? Can hunting be ethical? London Zoo is one of the largest and the best zoos on a planet: do animals feel good there? Is there’s any reason to keep exotic animals as domestic pets? What is the best and most effective way to train domestic animals? Is it ok to breed different animals in order to create new species? Vegetarianism can’t be helpful for the animal world and nature. Is it immoral to wear natural leather? Is there a point of trying to return extinct animals like a mammoth? Why governmental method of nature protection can’t stop poaching? Topics Connected to Music and Arts How pirating music influences the economy of a country. Can fame of a music band or a singer bring more opportunities for development of the country they originate from? Some music types have almost no differences: why shall they be separated into different types? Can music be used in the process of rehabilitation of criminals and prisoners? Will decreasing the price of music apps and albums lead to decreasing pirating? Will ancient Chinese music be indicated as a different type of art? Will the kind of music for rehabilitation be chosen individually? How historical songs help us to understand certain moments of history? Can technologies replace artists and musicians? Music as a part of therapy for curing mental disorders. Topics Connected to Sports Shall the animal sport be banned? Is it ethical to advertise junk food, alcohol or cigarettes during sports events? Shall popular sportsmen control their behavior being a role model for teenagers? Is the popularity of extreme sports can be a dangerous trend? Shall the bullfighting be banned, even being a part of Spanish culture and an old tradition? Are genetics and an inborn talent more important than the hard work in reaching great results in sport? Is there point of creating sports teams that may include both male and female players? Shall different types of sports be separated into female and male sports? Shall sportsmen work not only with a coach but also with a psychologist to avoid serious depression and to achieve better results? Is it necessary to make anti-doping control more severe? Complicated Topics for Persuasive Essays Are those features of people that are called ‘negative’ natural and coincide with the inborn instincts? What shall be the main aim of sexual education at school? Which measures can be taken to make oil producers be more attentive to oil spills? Shall other countries answer the new US policy that may violate the rights of national minorities? Is the legislation that controls selling of guns effective? Is free internet real harm to the moral norms of society? Which changes are necessary to make the copyright laws more effective? Shall teenagers be given more legal rights like voting, buying alcohol, dealing with banks and businesses? How would the opening of borders influence the world’s economy? How the world would be different now in the case if the German army could win the Second World War? Topics Connected to Ethics and Morality How to make animal testing less unethical in a case it can’t be banned? Shall people be given a legal right to die or to suicide? How kids’ beauty contest can influence the development of psychological disorders among young children? Which conditions are necessary to make euthanasia not illegal? How can governments of developed countries stop using child labor in other countries? Is atheism dangerous for moral norms? How to reduce the number of unnecessary plastic operations that may harm one’s health? Shall college students be allowed to buy alcohol drinks? Shall college students be involved in voluntary work that is connected to their future profession? What can be an alternative way of controlling the number of illegal immigrants? Do cameras in public places help to reduce the number of crimes? Universal Topics for Persuasive Essay What is the most tolerant way to control the relationship between atheists and believers? Is it necessary to participate in war conflicts in Middle Eastern countries? The influence of ‘Sexual Revolution’ on modern art, music and idols. Why the tension between vegetarians and meat eaters is growing and how to control it? Which types of crimes shall lead to a death sentence? Shall students keep a special diet that helps their brain to work better? Would the portrait of Mona Lisa be the same popular if it’s painted by an unknown artist? Shall people change their attitude towards cheating and call it sexual freedom? Is the art for masses less important than the recognized elite masterpieces? Modern fashion trends make women feel worse and look less natural comparing to women of the past. Choosing an interesting topic is not as easy as it may look. You shall prefer those topics that may have several possible explanations and points of view. It’s always good to choose some controversial topics, however, in that case, you shall also have a clear and grounded position about it. It’s not always necessary to create the topic on your own. It’s ok to choose one of the topics that is presented in a list. Even if you choose a topic that has been discussed before, you can express different ideas about it and make your paper sound unique.

Museum paper assignment Essay Example | Topics and Well Written Essays - 1000 words

Museum paper assignment - Essay Example but their proportions are more abstract although it has some naturalistic depictions. Dogon masks are an irony compared to the Haida mask of North America, because Dogon masks represents naturalistic entities which are members of Dogon tribe yet the proportions of their representation are more abstract. The Sulka masks of Oceania are obviously abstract in proportion. Unlike Dogon masks from Africa which has hues of semblance of a human form, Sulka masks does not have the slightest feature that distinctively resemble to any entity be it human, animals or objects. They are shaped like umbrellas especially the hemlaut masks which I believe were deliberately made indistinct because they are used for circumcision ceremonies for boys. Hopi figures which are Katsina dolls may represent spirits that descended from the mountains to aid the tribe people of their livelihood and well-being but their proportions resembles to a human form and being such, more naturalistic in representation. The Kota figure from Africa is more abstract in proportion due to the convexity of the male representation and concavity of the female representation to the point that it became indistinct. The indistinctiveness of the Hopi figure is more pronounced especially if Kota figure will be compared from the Hopi figure of North America which have an obvious resemblance to a human form. The Maori figure from Oceania is a beautiful naturalistic representation of the human form. This is particurlary true with the wood carving known as whakairo rakau which made decorates a human head with a synchronized lines and circles. Looking closely at the Haida mask from North America, it does not depict any emotional expression other than a blank stare. Perhaps the reason any expression was removed from mask because it represents an impersonal spirit. Examining the Dogon mask from Africa, it may not have any distinct expression but the sharp stare

Musical Rent Essay Example | Topics and Well Written Essays - 500 words

Musical Rent - Essay Example Most of these artists and musicians spent most of their time living in Lower East Side of New York City during the period of Bohemian Alphabet City. All this things were happening under the looming shadow of AIDS. This paper provides a review of musical rental, including an argument about its relevancy to the contemporary world. The musical rent describes the life of young adults who chose to live in Bohemian lifestyle. This appealing song has been performed under a series of stage designers, performers and directors (Larson & Ed 56). Despite of the numerous productions under different directors, the play has been appealing to the audience for a very long time. This play addresses several types of social issues such as sexual problems, alcohol and drugs among the young adults. The theme of the play is not presented in the form of a fiction but it is realistic, and the characters discuss the social issues in the play. Most of the young adults in the play have adapted the Bohemian life style, but they still thrive in poverty (Larson & Ed 56). Most audiences’ hearts are touched by the struggle and love stories of different young couples in the play. The School of Theater, Dance and Performance Studies, this year performed this play, and it was an remarkable job. The director of the play might have considered several factors about how the play will be performed.