Abstract This paper explains the way GPS technology works and the way it tracks. The author points out the benefits of the GPS technology. The paper reviews issues of privacy and ethical disadvantages versus technical and safety advantages.
From the Paper "High technology has touched almost every facet of human experience all around the world. Global positioning system or GPS technology is no exception. In fact, it has a special place in technology because it has the potential to find the exact location of any person or thing anywhere in the world. That is a great benefit because it means that GPS makes it possible for people never to get lost anywhere in the world again. However, it would be foolish to think that GPS has benefits only especially ..."
Abstract This paper considers the way the implementation of GPS technology (Global Positioning Satellite) in aviation has affected safety and what this will likely mean for the future. It discusses how GPS technology has become a major technological advance for use by the airline industry and for aviation at all levels and how the tracking capabilities and accuracy of this technology has had a major impact on aviation safety as a result.
From the Paper " The creation of the Global Positioning System (GPS) offered a boon to many people and many professions. The use of GPS for ships at sea was noted early. The system was also deemed of particular value to the military and so to the government, which protected aspects off the technology for some time and kept these from wider public use. More recently, GPS technology has become viable for virtually everyone and has been included in automobiles, laptops, individual electronic tracking devices, and much more. GPS technology has also become a major technological advance for use by the airline industry and for aviation at all levels, and the tracking capabilities and accuracy of this technology has had a major impact on aviation safety as a result. "
Abstract The main purpose of this paper is to analyze different aspects of Pulse Code Modulation including sampling theory, aliasing, quantizing and effect of non-uniform quantization. Each part of the paper begins with the theoretical analysis; then the simulation results are presented. Finally the practical measurement results are demonstrated and discussed. For better analysis and subjective evaluation of quantization process, a Java-MATLAB application is developed (the source codes are included). Finally in the conclusion, the main points of each part are summarized.
Outline
Introduction
Pulse Modulations Pulse Code Modulation Sampling
Nyquist Sampling Theorem and the Aliasing Distortion
Zero Order Hold (ZOH)
Effect of Output Pulse Width
Aliasing Distortion
Variation of the Output Filter Bandwidth
Quantization
PCM Quantization Analysis: Java-MATLAB Software Application
Peak clipping
Quantization Distortion
Spectrum of Quantization Noise
Non-Uniform Quantization
The i law
Quantization Distortion for a Companded System
Conclusion
References
Appendix A: Java Software Source code
From the Paper "Sampling is the first step in any pulse modulation system. In fact by sampling, a signal is represented by set of discrete samples. If the frequency of the sampling is high enough, the original signal can be recovered from the samples. This concept will be examined with more details later. From the mathematical point of view, the sampling process can be considered as the multiplication of the message signal by a train of Dirac impulses. "
Abstract The purpose of this paper is to identify some of the possible risks associated with the use of cellular telephones. The paper is organized into four sections: An introduction which examines the existing literature on the topic and a methodological approach for identifying the likelihood of potential dangers. The second section discusses the results of the research. The third section states the conclusions that were reached from those findings. and the fourth section lists some recommendations for future research. Also included is an appendix containing the research instruments used in this study.
From the Paper "Of the 200 survey instruments sent out to the study participants, 100 completed forms were returned for analysis. The final sample consisted of 50 oncologists and 50 neurosurgeons. All 100 respondents indicated that they were aware of the current research on the potential dangers of cellular telephone use. However, only 90% stated that felt there was enough evidence to draw any firm conclusions about those risks (88% of oncologists believed this and 92% of neurosurgeons believed this). Twenty-eight percent of the total sample indicated that they felt able to give a general assessment of cellular telephone health risks."
Tags: health, danger, technology, warning, cancer, medical, telephone, mobile
Abstract This essay is intended to persuade the reader not to use cell phones while driving. In this article the writer examines the dangers of cell phones. In particular, the writer concentrates on the use of the cell phones that apply while driving. The writer uses this paper to urge the reader not to use such cell phones while driving.
From the Paper "Curtis Sathre said it was like a bomb going off. His young son Michael, stood stunned, his ears ringing, hand gushing blood and body covered in black ash. In a split second, fragments from Michael's exploding cell phone had hit him between the eyes and lodged in the ceiling of the family's home. Michael is still alive. Imagine what would have happened if he had been driving. The purpose is to persuade ..."
Abstract "The Most Dangerous Game", published in 1924, is a tale of adventure and suspense with a theme that quickly grew into a classic storyline of books and films that followed its publication. " This paper examines the themes of evil and fear in the story.
From the Paper "The Most Dangerous Game, published in 1924, is a tale of adventure and suspense with a theme that quickly grew into a classic storyline of books and films that followed its publication (The Most Dangerous Game intro). A general analysis would explain that this classic motif is "about the hunter and the hunted" (The Most Dangerous Game By Richard Connell), but this exploration is too surface. Connell writes, "I think evil is a tangible thing--with wave lengths just as light and sound have." It is this tangible, let us call it "landscape," that really presents itself as the theme of the story. However, the landscape of The Most Dangerous Game is not one of evil per se but of fear. This will be explored in the following pages. "
Abstract This paper researches the issues concerning the ways unmanned aerial vehicles (UAVs) will affect the security of the national airspace. The paper specifically looks at the degree of acceptance of UAVs and of the ways to educate individuals so that UAVs will be accepted into the current national airspace as a necessary component. The author includes a literature review, a description of the methodology used for the survey, an analysis of the data and recommendations based on the research. In the chapter on methodology, the author presents an extensive general discussion on the process of doing research.
Table of Contents:
Introduction
Background
Statement of the Problem
Purpose of the Study
Importance of the Study
Scope of the Study
Rationale for the Study
Overview of the Study
Review of Related Literature
Methodology
Research Design and Approach
Population and Sample
Collection and Tabulation of Data
Data Analysis Procedure
Qualitative vs. Quantitative Analysis
Limitations of the Study
Reliability and Validity of the Data
Survey Instrument
Analysis of the Data
Summary, Recommendations, And Conclusion
From the Paper "Commercial flights have been going on for a long time. Throughout this history there have always been accidents. Weather, mechanical failures, and other issues have worked to produce some of these. However, there are some accidents that can only be attributed to what is termed "pilot error." Those that want to understand how these accidents happen and why have studied many of these accidents and tried to determine what caused the human error that ultimately led to the crash . Many of these individuals have discovered that the fatigue of the crew and the pilot has been what has led to the crash in many cases."
Abstract This paper analyzes the use of GPS surveying in relation to a proposed land project over a garbage dump. The paper also outlines the necessary factors of GPS surveying to be used in the assessment, and discusses the advantages and end result. The paper explains that before the arrival of GPS technology, three- to five-person survey crews were used in comparison to a one- or two-person crew into the field in order to achieve the same results. The paper also looks at how GPS technology also provides complete, three-dimensional survey information, enabling and empowering the design and construction management team to excel at their phase of the project. The writer believes that future studies and advancements in GPS technology will pave the way for a brighter future in land use planning.
Outline:
Introduction to GPS Technology
Land Development in Relation to GPS Technology
Meadowlands Xanadu Project History
The Application of GPS Technology to the Meadowlands Xanadu Project
Benefits of Using GPS Technology in relation to the Meadowlands Project
Proposed Use of GPS Technology for the Meadowlands Project
Conclusion
From the Paper "Control surveys are primarily used to establish the locations of arbitrary points. These points, called control points, may then be used as reference locations for performing additional survey work (U.S. Department of Commerce, 2007). The main reason for performing a control survey is to place control points in locations which are physically convenient for the intended survey work. Control surveys are generally performed to a higher standard of accuracy than other types of surveys (U.S. Department of Commerce, 2007). Control surveys usually consist of several different measurements to the unknown point from several known points, so that the measurements are taken from different angles."
Abstract This paper examines how satellite technology is used worldwide to provide important services in the fields of research, communications and more and how one of the most popular applications of satellite technology is the development of the Global Positional System (GPS). It provides an overview of satellites and GPS, including a brief description of the principles behind satellite technology and deployment and specifically of GPS. It also covers the origins and development of GPS as well as a synopsis of its current military and civilian uses. Finally, this paper also aims to address the future of GPS technology in the private sector.
From the Paper "By 1972, the best characteristics of these satellite systems and the investigation of the steering group came together to result in the development of today's system that would be known as the NAVSTAR Global Positioning System. The program was officially approved in 1973 and by February 1978, the first experimental GPS satellites (called Block I) were being launched into space. From the beginning, GPS had to meet the radio navigation requirements of all military services as well as those of civilian users and by February 1989, the second block of GPS satellites (Block II) was launched into space. Today's GPS is now made up of twenty-four Block II and IIA satellites and one experimental satellite from Block I. (Commission 145-146)"
Abstract In this paper, the writer notes that the global positioning system (GPS) has advanced vastly since the first satellite was launched into space in 1978. The writer points out that originally the GPS was a project placed into orbit by the United States Department of Defense and in the 1980s the system became available for civilian use. The writer discusses that the GPS offers many positive applications such providing driving directions to devices that will save a life buried by an avalanche. The writer discusses that although the GPS has thousands of different possible applications, it is controversial in the ways it could be used. For example, privacy is jeopardized as a result of the tracking capabilities of the global positioning system. The writer concludes that the GPS definitely has its advantages and has the capabilities to save lives, however, the possible consequences of this technology should not be overlooked.
From the Paper " Since GPS has been allowed for civilian use, we have seen it placed in many devices. The most common devices are those for navigational purposes. Such as a device that is used in cars, boats, and aircraft. These devices tell the navigator their position at all times, and or how to get to a specific location. Another popular device used in agriculture helps to maximize crop production. The GPS device that is used during farming will tell the farmer what areas he has covered and what areas are yet to be done. The system is so advanced and accurate that it will actually auto guide that tractor in a precise path so to optimize time and coverage. There are also many hand held devices that are used by hikers to navigate trails, by snowmobilers and skiers in case of an avalanche, and by hunters who wonder deep into the woods. We also see devices now in cell phones, personal and business vehicles, on personal belongings and much more. There are now millions of devices that take advantage of the Global Positioning System and there will be millions more to be developed as time progresses."
Tags: device, privacy, satellites, navigation, position
Abstract This paper describes the United States Global Positioning System (GPS). The author presents policy decisions regarding GPS. The paper contends that GPS, under the aegis of the U.S .Air Force, is ill-served to advance lockstep with competing technologies overseas because U.S. supremacy in this area is tenuous, due largely to lack of funding GPS has received.
From the Paper "The Global Positioning System (GPS) is a satellite-based infrastructure developed by the United States Department of Defense to provide an invaluable navigation service to the military. GPS has since been ..."
Tags: global positioning system, satellite navigation, space-based technology
Abstract This paper analyzes and simulates the performance of the frequency modulation (FM). The paper begins with an introduction to FM modulation and provides a full mathematical background information in regards with the FM. (This includes FM spectral analysis and introducing and simulating the role of the Bessel function and the frequency sidebands). The FM bandwidth requirements is discussed and simulated by using the MATLAB/Simulink. The simulation model and initialization steps are completely demonstrated and the results are discussed. The effect of adding noise to a FM modulated signal is analyzed and the results are presented. (This includes analysis of threshold effect and the mathematical relationship between signal to noise and carrier to noise.) The results of practical measurements are presented at the end of each part. The paper includes figures and graphs.
Contents:
1. Abstract
2. Frequency Modulation A. Description:
B. Why Modulation?
C. Modulation Types
D. FM Modulation E. FM Spectral analysis
3. Determining Kf (the deviation constant)
A. DC Method
B. Time Domain method
C. The Spectrum Analyzer Method
D. FSK Method
4. Effect of Band-pass Filtering
Simulating the Effect of Band-pass Filtering using SIMULINK
5. Effect of Adding Noise to an FM Signal
6. Conclusion
7. References
From the Paper "As explained before, in FM modulation, there is a linear relation between frequency deviation and voltage variation. (At the receiver site, demodulator use this property to extract the message from the modulated signal). In other word, this means that if we sketch the graph of modulated signal frequency versus message signal's voltage for an arbitrary FM system, the slope of the graph would be a constant value and would be equal to Kf (deviation constant)."
Abstract The paper relates that marijuana is considered a dangerous addictive drug that is often a "gateway" to the use of more dangerous addictive drugs. The paper discusses how researchers are now investigating this drug for more therapeutic usage. The paper explains how marijuana works, its medical uses and the suspected harmful long-term effects in habitual users. The paper stresses that for the lay person, the dangers of long-term marijuana use are clear. As far as medical use is concerned, the paper explains that the potential dangers of use will have to be weighed against the potential dangers of the disease.
Outline:
Pharmacology
Changes in Brain and Behavior
Medical Uses of Marijuana
From the Paper "The effects of marijuana intoxication include the sensation that time passes more slowly, and an altered awareness of the body and environment around the person (Murray, 1985). There are also a number of emotional changes that occur as well. Intoxication with marijuana produces difficulty with motor coordination, impaired learning, difficulty paying attention and memory loss (Murray 1985). Compared to other psychotropic drugs such as cocaine and MDMA (Methamphetamine), marijuana is considered to be relatively harmless (Lundquist 2005). However, some long term effects, such as neurotoxicity are a concern regarding the long-term medical use of the plant."
Abstract This paper contends that theater can be dangerous on a variety of levels. The paper presents Plato's main concern, that art distracted otherwise reasonable people from using their reason to rule the other faculties. This concern appears to be a prominent feature in the dangers posed by the theater as expounded by Artaud and Boal. Artaud's theater concentrates mainly on the psychological aspect. It places people in touch with the primitive and instinctive to the detriment of reason. While the advantage here is that repressed emotions are revealed to be examined and possibly healed, it is also possible that a permanently broken psyche may result. The paper discusses Boal's theater, on the other hand, that poses a variety of levels in terms of both danger and healing. There is a psychological aspect that may be seen as similar to Artaud's theater. At the psychological level, Boal also addresses the subconscious in terms of dissatisfaction. In extreme cases, this may lead to a breakdown between the desired state and the state of dissatisfaction. The mental and physical aspects of danger are detailed in the paper.
From the Paper "The theater is probably the medium of art by means of which the most prominent of social sentiments can be depicted. Furthermore the theater lends itself to a variety of forms, including the highly experimental. One of the most recent evolutions in theater has been including the audience in the setting and theme of the play. Indeed, among the most modern thinkers is Augusto Boal, who takes this paradigm a step further in allowing the audience to actively take part in the creation of the very events within the play. The idea that art in whatever form could pose a danger to society and its way of life originates with Plato, whose main concern was with the art of poetry. Plato's thought was embedded in the politics and social structure of his time. According to him, then, the danger of poetry lay in the fact that it could distract citizens from their duties as citizens in the Republic. The role of poetry during Plato's time then was more or less the same as the role of theater today."
Abstract This paper reviews "Global Dangers: Changing Dimensions of International Security". The collection of papers in this book perfectly reflect the themes of this course, since it touches on how the threat to the environment poses the greatest danger to the international community today. This is precisely why environmental security must now become the most important objective of all nations.
