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09 juin 2009
pdf

Security challenges in wireless sensor networks

Thesis - 5 pages - Electronics, mechanics, engineering & technology

Wireless sensor networks (WSNs) are wireless ad hoc networks of tiny sensor nodes. As a result of advances in sensor technology and wireless communication, sensor networks have emerged as an indispensable and important new tool for multiple civilian and military applications, including patient...

09 juin 2009
pdf

Developing a high speed memory interface

Thesis - 4 pages - Electronics, mechanics, engineering & technology

A common problem for today's system designers is to reliably interface with their next generation high-speed memory devices. As system bandwidths continue to increase, memory technologies have been optimized for higher speeds and performance. As a result, these next generation memory interfaces...

09 juin 2009
pdf

National conference on power electronics and power systems 2008: Simulation of transient for power transmission lines

Thesis - 6 pages - Physics

Switching operations, faults, lightning surges, and other intended or unintended disturbances cause temporary high voltages and currents in power transmission lines. The system must withstand this high voltage with a certain probability or its effects must be reduced and limited with protective...

09 juin 2009
pdf

Study of the incompressible fluid-flow past a square cylinder in a viscous medium

Thesis - 3 pages - Physics

The present study makes an effort to find out the location of the drag, stream lines and contours of static pressure in the flow field passing through the square cylinder in incompressible viscous media. For this work, different values of Reynolds Numbers have been chosen. The distance of both...

09 juin 2009
pdf

Experimental methods of hydrogen testing to prevent Hydrogen Assisted Cracking (HAC) during the Submerged Arc Welding (SAW) process

Thesis - 5 pages - Physics

One of the main problems associated with the welding of ferritic steels is that of hydrogen assisted cracking (HAC), popularly known as cold cracking or delayed cracking. As the name suggests, it is caused by hydrogen present in the weld metal. One of the methods to mitigate this type of cracking...

09 juin 2009
pdf

Data warehousing and data mining: Bringing pinpoint accuracy to sales

Thesis - 4 pages - Computer science

For most businesses, the primary means of growth involves the acquisition of new customers. This could involve finding customers who previously were not aware of your product, were not candidates for purchasing your product, or customers who in the past have bought from your competitors. Some of...

09 juin 2009
pdf

Performance evaluation of diesel engines using blends of diehtyl ether and diesel and diethyl ether and bio diesel

Thesis - 7 pages - Physics

Producing and using renewable fuels for transportation is one approach for sustainable energy future for the world. With ever growing concerns on environmental pollution, energy security, and future oil supplies, the global community is seeking non petroleum based alternative fuels, along with...

09 juin 2009
pdf

Analytical design of tonnage plant for the separation of high purity Nitrogen, Oxygen and Argon from atmospheric air

Thesis - 4 pages - Physics

Air is a mixture of various gases like as nitrogen, oxygen, argon, hydrogen, helium, neon, krypton, etc. These gases can be separated at cryogenics temperature by liquefying the components at different temperature & pressure. This paper presents the latest technology in bulk production of high...

09 juin 2009
ppt

Simple Mail Transfer Protocol

Presentation - 21 pages - Computer science

This presentation talks about Simple Mail Transfer Protocol. First of all it begins with a clear description of SMTP, how it is implemented and what are the alternatives used on mail servers after which it explains what authenticated SMTP with pictorial representation is. Following this it moves...

08 juin 2009
pdf

Optical wireless communication

Thesis - 7 pages - Electronics, mechanics, engineering & technology

Today's information economy depends on the transmission of data, voice and multimedia across telecommunication networks. Optical networks remain the most ideal medium for high-bandwidth communications for true connectivity. There are two distinct types of optical communications: Fiber optics...

08 juin 2009
pdf

Inverted suspended space fed microstrip antenna for wireless applications

Thesis - 6 pages - Electronics, mechanics, engineering & technology

The basic microstrip antenna (MSA) is a resonant patch of metal, etched on the surface of grounded dielectric slab. The dielectric material is replaced with air to improve the bandwidth and to minimize losses. The proposed space fed microstrip antenna (MSA) consists of fed patch and parasitic...

08 juin 2009
pdf

WiBro technology

Thesis - 6 pages - Electronics, mechanics, engineering & technology

This technology is the latest advancement in Wireless Communication which presents drastic change in Wireless Internet and helps connect each and every person globally. It is the most advanced and upcoming technology now a days. WiBro is the Portable Internet Service to provide a high data rate...

08 juin 2009
pdf

Brain finger-printing

Thesis - 5 pages - Electronics, mechanics, engineering & technology

Brain Fingerprinting Laboratories, Inc. has developed and patented EEG/P300 based testing systems that determines, with extremely high accuracy, whether or not specific information is stored in a person's memory. The test measures individual brain-wave responses to relevant words, pictures or...

08 juin 2009
pdf

Performance based comparision of TCP variants: Reno and Sack on real test beds

Thesis - 4 pages - Computer science

One of the most important parameter of data communication is the TCP protocol. It has underwent many changes which brought into existence many variant of it like tahoe, reno, new reno, sack, vegas, westwood. Nowadays we are using TCP SACK as the tcp variant as it is better as compared to its...

08 juin 2009
pdf

Optimization of TCP SACK

Thesis - 4 pages - Computer science

Internet is expanding rapidly over entire glob with heterogeneous networks. TCP/IP protocol suite is an inseparable part of Internet. Hence, the efficiency of the protocols is plays a vital role in performance of Internet. The increasing use of wireless links in expanding Internet has brought out...

08 juin 2009
pdf

DSP based excitation controller for synchronous motor

Thesis - 5 pages - Electronics, mechanics, engineering & technology

Induction motors are widely used in industrial production processes. Use of an induction motor will result in increased lagging power factor. This power factor must be corrected by adding capacitors. If not, the result is the penalty of larger kVA burdens to the interconnected system. The...

08 juin 2009
doc

Development of a grid framework using .net

Thesis - 8 pages - Computer science

It is difficult to analyze the performance of dynamic environment like Grid. In a Grid , data need to be collected and analyzed in real time. A Grid has to adapt to the changing resources usages scenario. The objective of this paper is to present an object oriented implementation of a part of...

08 juin 2009
pdf

Short term load forecasting using artificial neural networks

Thesis - 6 pages - Medical studies

Today's electric power industry is undergoing many fundamental changes due to the process of Deregulation. In the new market environment, the power system operation will become more competitive. Therefore the Utilities are required to perform optimal planning in order to operate their system...

08 juin 2009
pdf

Power quality issues and mitigation of voltage dips using power conditioning equipment

Thesis - 8 pages - Physics

Most of the industrial loads are mainly controlled by power semiconductor devices. These devices make such loads more sensitive against power system disturbances. Thus, the power quality problems have gained more interest recently. This paper presents a review of some of the disturbances on the...

08 juin 2009
pdf

Commutative analysis of a stepper motor drive

Thesis - 7 pages - Electronics, mechanics, engineering & technology

In this paper, the designs of the various drives of the stepper motor are presented. The main objective of this paper is to analyze the various drives of the stepper motor. Basically the Design consist four sections. First part is power supply. We required two supply 5v and 12v. Second part is...

08 juin 2009
pdf

An overview of esoteric pollution EMI-EMC

Thesis - 5 pages - Physics

Water , air and Sound pollution is well within the human perception but esoteric pollution of frequency spectrum called Electro Magnetic Interference (EMI) has to address in today's world of computerization where the emphasize is on high band width / high speed along with miniaturization of...

08 juin 2009
ppt

Improving the power factor of a circuit

Presentation - 51 pages - Physics

The power factor of a circuit implies that how efficiently power is being consumed or utilized in the circuit. The greater the power factor of a circuit, greater is the ability of the circuit to utilize apparent power. Thus if the power factor is 0.5, it means that 50% of the power is being...

07 juin 2009
ppt

Mechanical forming of metals: Study of rapid prototyping processes

Case study - 30 pages - Computer science

The introduction of the presentation will give a brief overview of the trend that the information in it will follow after which it will begin with the reasons why RP is used. It will then move onto a mention of the classifications of RP followed by a section on stereo lithography, inject based...

07 juin 2009
ppt

Software process models

Presentation - 46 pages - Computer science

This presentation deals with software process models. It begins with the definition of software development process and its different phases. It then moves on to the description of each of the software models beginning with waterfall model,its advantages and disadvantages, incremental life cycle...

04 juin 2009
doc

Product design and development of a 10kW Horizontal Axis Wind Turbine Blade

Thesis - 8 pages - Physics

Wind power generation techniques are being promoted all over the world as a beneficial alternative among other renewable sources (Li, Chen 71). A wind turbine is defined as a rotating machine that is used to generate power by means of converting kinetic energy to mechanical energy. Kinetic energy...

04 juin 2009
ppt

Characteristics of a system

Presentation - 39 pages - Computer science

Relatively autonomous subsystems are also loosely coupled with other subsystems; that is. relatively few interfaces exist between the subsystems, and these interfaces are relatively simple. Decoupling techniques, which may be used to make subsystems relatively independent from one another by...

04 juin 2009
ppt

Internet famous protocols

Presentation - 34 pages - Computer science

The protocol is set of rules that govern how things communicate over the network. Computers have a common way that is called protocol to send information between them. Protocols enable all procedures to be undertaken in a standard manner. some of the more common protocols are TCP, IP, UDP, POP,...

04 juin 2009
ppt

Hypertext transfer protocol

Presentation - 37 pages - Computer science

HTTP (Hypertext Transfer Protocol) is the set of rules for transferring files (text, graphic images, sound, video, and other multimedia files) on the World Wide Web. HTTP has been in use by the World-Wide Web global information initiative since 1990. HTTP lies at the application layer of TCP/IP....

01 juin 2009
ppt

The system in information systems

Presentation - 37 pages - Computer science

The presentation begins with an explanation of what an information system is. From there it will go onto give a general overview of the layout of a system followed by the basic functions of a system. The next topic covered will be the elements of an example system which will be followed by...

31 mai 2009
ppt

Biological Nutrient Removal Theories and Design

Worksheets - 131 pages - Biology

Flocculation Method: Add 1 ml of 100 g/l zinc sulfate solution to a 100 ml waste water sample and mix vigorously with a magnetic stirrer for 1 minute. Adjust the pH to approximately 10.5 with a 6 M sodium hydroxide solution. Settle quiescently for a few minutes. Withdraw the clear supernatant...