| Papers [225-238] of 455 :: [Page 17 of 33] | | Go to page : <— 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 —> | |
|
|
The Wright Brothers and Flight, 2004.
A discussion about the discovery of the airplane by the Wright brothers.
1,681 words (approx. 6.7 pages), 4 sources, APA, £ 34.95
»
Click here to show/hide summary
Abstract
This essay provides a short biography of Orville and Wilbur Wright and their invention of the airplane early last century. The paper explains that the airplane was a technical mystery for many years, but relying on each other's strengths, they worked very well as a team to solve the problems. It concludes that even though the brothers were not formally educated, they succeeded in inventing one of the most revolutionary technologies of all time.
From the Paper
"The Wrights' growing local reputation as skillful cyclists and mechanics led to many requests from friends to fix their bicycles. In 1893 they capitalized on the situation and opened a small rental and repair shop. Their bicycle business provided them with an adequate and enjoyable living, an upstanding reputation in the local business community, and an outlet for their mechanical interests. Knowledge and experience with bicycles also proved valuable to the Wrights' development of a successful airplane."
| |
|
Hobart?s Funnies: World War II and D-Day, 2005.
A look at the life and success of the technical innovations of Percy Hobart during World War II.
1,775 words (approx. 7.1 pages), 9 sources, APA, £ 36.95
»
Click here to show/hide summary
Abstract
This paper examines how Major General Hobart was given an assigned task during World War II to develop some of the most unusual pieces of military equipment ever seen. It looks at how Hobart and his division designed tanks that were named "Hobart's Funnies" and how among these specialized tanks were the Bobbin, Crab, Fascine, Small Box Girder, Crocodile, AVRE Recovery vehicle, ARC Mark II, Bulldozer and the DD Tank. It shows how these tanks were important because they helped the Allies overcome German obstacles and made a huge difference in the D-Day operations.
From the Paper
"Percy Hobart graduated from the Royal Military Academy in 1904 where he was commissioned into the Royal Engineers. He served in India, France, and Iraq during World War I, where he gained the respect of his comrades and became know as a "Brilliant but independent-minded officer". Hobart believed that tanks were the future of ground warfare and joined the brand-new Royal Tank Corps in 1923. He then became a Colonel in 1928 and in 1934 he formed and gained command of the 1st Tank Brigade, where he began to develop new tank tactics in the content of mobile warfare. "
| |
|
TQM (Total Quality Management), 2004.
An analysis of TQM (total quality management) and other quality tools.
2,188 words (approx. 8.8 pages), 10 sources, APA, £ 43.95
»
Click here to show/hide summary
Abstract
In support of TQM, this essay goes in depth to define TQM, describe various functions of TQM and applies it to today's business world. As technology and production vastly improved over the past decade, the need for quality process improvements became apparent more than ever. The paper shows practical applications of TQM today (with examples) and also briefly describes various quality awards.
From the Paper
"The major new element in world market competition is quality and maintaining that level of quality. During the 1970's and 1980's, the Japanese and their U.S. companies demonstrated that high quality is achievable at lower costs and greater customer satisfaction. It was the result of using the management principles of total quality management (TQM), continuous process improvements (CPI) and quality improvement tools. More and more U.S. companies have demonstrated that such achievements are possible using TQM as a new way to manage. Such companies also found that they were recognized with everyone pulling in the same direction, with the creation of quality awards such as Malcolm Baldridge and ISO 9000."
| |
|
Hybrid Cars, 2004.
A research paper about hybrid cars.
1,743 words (approx. 7.0 pages), 9 sources, MLA, £ 35.95
»
Click here to show/hide summary
Abstract
This paper argues that hybrids are a more possible than not solution for the future. It explains how they offer many unique features including a better fuel economy and cleaner emissions. This contributes to the hybrids' growing popularity and, as a consequence, major automakers are producing their own hybrid models which include sedans, trucks and SUVs. The writer states that currently, these vehicles are more realistic than using fuel cells or diesel. The writer summarizes by claiming that all of these reasons point to the conclusion of hybrids as a definite part in the future of cars.
From the Paper
""If everyone in the US drove a hybrid instead of a traditional car, we could save roughly 1.6 billion barrels of oil a year" (Mihm 1). In the quest for cheaper gasoline and a cleaner environment, the one answer that comes to mind is the hybrid. The hybrid, a gasoline-electric car, seems to be the solution for the future. With lower emissions and better fuel economy, hybrids are thrilling consumers and environmentalists. Because of the unique features of these cars and its popularity among owners, several major automakers are following Toyota and Honda by producing their own hybrid model. This is starting a hybrid revolution whether it's for a sedan, SUV, or truck. With other fuel options such as diesel, all-electric, and fuel cells falling short, hybrids may have a secure spot in our future."
| |
|
Wanted: Fossil Fuel?s Replacement, Nuclear Energy, 2005.
The pros and cons of nuclear energy.
1,378 words (approx. 5.5 pages), 5 sources, MLA, £ 29.95
»
Click here to show/hide summary
Abstract
This paper thoroughly describes the advantages and disadvantages between using nuclear energy and fossil fuels. Overall, the paper provides a positive view of nuclear energy and concludes that its advantages outweigh its disadvantages.
From the Paper
"The green, glowing substance illustrated on "The Simpsons", capable of destroying 155,200 people and giving frogs three legs, actually proves to be beneficial. A decrease in the conventional coal burning ways is more than important for conserving and consuming energy. The efficient, clean and safe solution for conservation appears to be nuclear energy. As the safest out of any major technological industry, nuclear technology's powers are nearly limitless. Of course, with no known method for storing radioactive waste, it is in constant, high debate because of the danger spent reactors pose. Leakage and moving tectonic plates in the main storage mountain, the Yucca, continue to be arguments for the opposing of nuclear energy. Still, in everyday use, the benefits of nuclear power outweigh the negative aspects and are a prime alternative to the rapid reduction of fossil fuels."
| |
|
Solar Energy and Solar Cells, 2003.
This paper is on solar energy, solar cells (panels) and the breakdown of what happens in the process.
1,137 words (approx. 4.5 pages), 3 sources, MLA, £ 24.95
»
Click here to show/hide summary
Abstract
This paper provides a full explanation about the way in which solar energy is created. The paper looks at the process in details and then discusses what benefits solar energy may have in the future.
From the Paper
"Solar Energy comes from Solar cells which today are mostly made of silicon, one of the most common elements on Earth. The crystalline silicon solar cell was one of the first types to be developed and it is still the most common type in use today. They do not pollute the atmosphere and they leave behind no harmful waste products. Photovoltaic cells work effectively even in cloudy weather and unlike solar heaters, are more efficient at low temperatures. They do their job silently and there are no moving parts to wear out. It is no wonder that one marvels on how such a device would function. To understand how a solar cell works, it is necessary to go back to some basic atomic concepts. In the simplest model of the atom, electrons orbit a central nucleus, composed of protons and neutrons."
| |
|
Reprogenetics, 2005.
An overview of the current practice of modern reprogenetics and its future.
1,433 words (approx. 5.7 pages), 12 sources, MLA, £ 29.95
»
Click here to show/hide summary
Abstract
This paper discusses the genetic engineering field of reprogenetics. It covers the history and overview of biotechnology, reprogenetics current practices (from IVF to amniocentesis and chorionic villus sampling) as well as potential future possibilities as well as bioethics and its implications on society.
Outline
Introduction
Biotechnology: Overview and History
Introduction to Reprogenetics
Current Practices of Reprogenetics
The Future of Reprogenetics
Bioethics
Conclusion
From the Paper
"The future of Reprogenetics is based around Genetic Engineering of the Germline (Silver, 2000). This essentially refers to the art of modifying or adding to, the embryo, any gene imaginable and any number of genes. Genetic Engineering of the Germline would allow parents to basically design their offspring, from physical characteristics to mental capacity, realising the concept of 'designer babies'. This technology has been used with increasing efficiency on mice, pigs and sheep. However, not until recently has it been considered possible to apply it to humans. This was largely due to quite a low success rate combined with ethical questions. Powerful new modification and screening technologies could allow scientists to overcome this low success rate. The question of ethics however, may remain indefinitely."
| |
|
Electrostatics, 2005.
An insight to the theory of electrostatics.
1,700 words (approx. 6.8 pages), 2 sources, MLA, £ 34.95
»
Click here to show/hide summary
Abstract
This paper introduces some of fundamental concepts of electrostatics including: electric surface charge density, electric flux density, Coulomb's Law and the Gauss's Theorem.
Paper Outline:
Electric Charge
Electric Surface Charge Density
Electric Flux and Electric Flux Density
Fields and Potential
Electric Potential
Electric Field Strength
Coulomb's Law
The E Field for a Point of Change
Electric Potential in a Field Due to a Single Point Charge
Surface Charge Density and Curvature
Electric Field as the (Negative) Gradient of Potential
Gauss's Theorem
References
From the Paper
"In some substances, particularly metals, negatively charged particles (electrons) can move easily. Such substances are called electrical conductors. Other substances, in which electrons do not move freely, are called electrical insulators. There is another group of substances which are neither good conductors nor good insulators but which have become increasingly important in the last 50 years; these are called semiconductors."
| |
|
Asynchronous Transfer Mode (ATM) Networks, 2005.
An examination of different aspects of Asynchronous Transfer Mode (ATM) networks and switches.
4,830 words (approx. 19.3 pages), 6 sources, MLA, £ 77.95
»
Click here to show/hide summary
Abstract
This paper looks at Asynchronous Transfer Mode (ATM) networks and switches including the problems associated with the old existing networks and the introduction of Broadband Integrated Networks. The paper also compares ATM networks with the traditional circuit and packet switching systems as well as discussing different categories of ATM switches and buffering schemes.
Outline
Origins of ATM
Evolution to a Broadband Integrated Network
Service Characteristics
Information Rate and Burstiness
Service Examples
Transfer Modes
Extreme Transfer Modes
Asynchronous Transfer Mode (ATM)
Benefits of ATM
ATM Cell Structure
Cell Size
BISDN Protocol Stack
Transmission Delay
Header Functionality
Virtual Paths
Statistical Multiplexing
Making an ATM Call
ATM Switching
Classification of Switch Fabrics
Time Division Switch Fabrics
Shared Medium Single Bus Structure
Space Division Fabrics
Single Path Self Routing Switch
Switch Problems
Buffering
From the Paper
"Asynchronous Transfer Mode is a digital technique for high speed switching. The unit of multiplexing and switching is a cell which comprises a short fixed length information packet with a fixed length header to carry signalling information. By offering access at the cell level, information from many sources with widely differing activity patterns and transmission rates can be interleaved on a single transmission link or switched through an ATM node. As in other packet switching environments capacity is used only when it is needed."
| |
|
IEEE 802.11 Wireless LANs, 2005.
Examines different aspects of IEEE 802.11 Wireless LANs by using analytical methods and simulation.
13,943 words (approx. 55.8 pages), 14 sources, MLA, £ 157.95
»
Click here to show/hide summary
Abstract
This paper analyzes the efficiency of the access algorithms in IEEE 802.11 infrastructure wireless LANs. The first part of the paper provides an overview of the access algorithms that are in used in IEEE 802.11 implementations. A mathematical model of the carrier sense protocols is introduced and analyzed through the second part. The main part of the paper is devoted to simulation of IEEE 802.11 infrastructure networks. For this purpose a discrete event simulator has been designed and implemented. Finally the results are presented and discussed.
Table of Contents
IEEE 802.11 Wireless LANS
IEEE 802.11 Access Algorithms
Mathematical Analysis of the Carrier Sense Protocols
Non-Slotted Non-Persistent CSMA
Slotted Non-Persistent CSMA
Simulation of IEEE 802.11 Infrastructure WLANS
Traffic Modeling
The Simulation Model
Simulation Results
Summary
References
The Simulator Source Codes
From the Paper
"Nowadays, wireless LANs, also known as WLANs, are used widely as an alternative for the wired LANs. In Comparison with the traditional wired LANs, WLANs provide more flexibility and higher ROI (Return On Investment) for both providers and customers. Also in some cases (such as disaster discovery), it is impossible to set up a wired LAN. Since setting up a WLAN does not need a great starting investment (especially in the case of ad hoc operation), it is considered to be an ideal choice for any temporary network connectivity requirement in local scales. For these reasons, the WLAN's productivity has increased rapidly during recent years."
| |
|
Pulse Code Modulation (PCM), 2005.
An examination of different aspects of Pulse Code Modulation (PCM) by using analytical methods and simulation.
5,755 words (approx. 23.0 pages), 5 sources, MLA, £ 87.95
»
Click here to show/hide summary
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. "
| |
|
Frequency Modulation: Analysis and Simulation, 2005.
Examines different aspects of Frequency Modulation by using analytical methods and simulation. Both techniques are fully described through the paper.
4,105 words (approx. 16.4 pages), 5 sources, MLA, £ 69.95
»
Click here to show/hide summary
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)."
| |
|
A New Football Stadium for Guildford, 2005.
A contemporary planning issue for Guildford, England and a proposal for a new football stadium.
2,421 words (approx. 9.7 pages), 2 sources, MLA, £ 46.95
»
Click here to show/hide summary
Abstract
This paper discusses the wider issues of interaction between public, planning and politics and views the interaction of the three within the context a controversial development proposal - plans for a new football stadium in Guildford. The main inputs from politicians, the people and the planning system are discussed at various stages at the planning process.
From the Paper
"Guildford is a town that has seen the relative decline of its football abilities. The application was made as a direct response to the wish of AFC Guildford to progress to the Nationwide Conference League. The club currently play on the pitch at the centre of the running track at the Spectrum Leisure Centre. The track however is not capable of being upgraded to the requirements of the Conference football league. There is an area of green land adjacent to the Spectrum Leisure Centre, which it was felt could possibly accommodate better facilities. With these historical and practical issues in mind the planning application for a new stadium was submitted in February 2004. The stadium would be built by the Trinity Investment Co. Ltd on behalf of AFC Guildford. Such a large scale and controversial issue could not be decided within the normal eight week deadline. The application was concluded in January 2005."
| |
|
Data Mining, 2005.
The paper is about data mining, which is the process of finding trends and patterns in data, often within a database.
3,546 words (approx. 14.2 pages), 10 sources, MLA, £ 62.95
»
Click here to show/hide summary
Abstract
Data mining has become a very important concept today and is used by companies all over the world to increase their profits and target the right market. The paper talks about the different aspects of data mining, tools used, and future trends in data mining. Data mining benefits are discussed in detail, and an entire discussion related to the trends in data mining is presented.
1-Background
2-Introduction
3-Data Mining Growth and Tools
4-The Data Mining Process
5-Data Mining Market Place Trends
6-The Data in Data Mining and Meta Data
7-Types of Data Mining Problems
8-Privacy and Ethical Sensitivity in Data Mining Results
9-Future Prospects of Data Mining
10-Works Cited
From the Paper
"Data, particularly in the vast diversity and immense quantity that it is available to modern business, was till recently almost very hard to find and understand. Yet, the comprehension of data is the most crucial step to extracting the knowledge that it contains. The scenario has drastically changed today where data is much more easily available and has become more "meaningful" with the utilization of Data Mining. Today, technology offers business managers powerful new tools for gleaning knowledge from data-the essentials of data mining. Data mining has become increasingly important to mainstream companies to become more competitive both in their workings and their customer based relationships. Data mining, as such is of great interest because it is imperative for organizations to grasp the competitive value of information contained within their data repositories. There are a number of pertinent benefits of data mining. First of all, data mining provides the tools and techniques that are essential for optimization of customer relationships. Secondly, data mining provides an automatic method of discovering patterns in data. Thirdly, but not the least, data mining tools can identify the relationships that are actually present in historical data."
|
|
|
