Power quality aspects for power system and industrial utilities

Science & technology   |   Electronics   |   Term papers   |   09/21/2009   |   .pdf   |   7 pages
Document abstract : «Power Quality is the headache for industrial utilities due dependence on the regional grid systems. The good quality power is always not available but dirty power is often found in the electrical systems. The dirty power causes severe problems in...»

Synopsis abstract : «Abstract. Introduction. Power quality problems. Causes of harmonic distortion. Evaluation of harmonic distortion. Classification of harmonics and their effects. Harmonics mitigation methods. Over-sizing or derating of die installation. Isolation...»

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

Science & technology   |   Electronics   |   Term papers   |   09/21/2009   |   .pdf   |   5 pages
Document abstract : «Most of the industrial loads are mainly controlled by power semiconductor devices. These devices make such loads to be more sensitive against power system disturbances. Thus, the power quality problems have gained more interest recently. This paper...»

Synopsis abstract : «Introduction. Power quality issues. Voltage quality. Current quality. Voltage swells. Voltage/current transients. Harmonic distortion. Voltage flicker. Voltage unbalance. Phase- angle jump. Voltage dips. Causes and characterization of voltage...»

Wind energy integration in power systems

Science & technology   |   Physics & chemistry   |   Term papers   |   09/21/2009   |   .pdf   |   5 pages
Document abstract : «Grid connection of wind energy sources is essential if they are to be effectively exploited, but grid connection brings number of problems. In the paper, Distributed Generation and Wind Power integration problems are discussed. Many early wind...»

Synopsis abstract : «Introduction. Grid integration issue of DG. Voltage variation. Power quality. Protection system. Short circuit power. Reliability. Power flow. Inertia. Grid integration issues of wind power integration. Standard squirrel cage induction...»

Wireless electrical power transmission

Science & technology   |   Physics & chemistry   |   Research papers   |   09/21/2009   |   .pdf   |   4 pages
Document abstract : «The conception of using the group of small satellite with wireless power transmission by focus powerful laser beam is one of the most promising direction of the modern space engineering development this engineering system makes possible to create...»

Synopsis abstract : «Introduction. Block diagram of wireless power transmission technology. Microwave semiconductors. Microwave vacuum tubes. Phase shifters and power dividers. Wave guide . Introduction. Transmitting antenna. Rectennas. System performance. Microwave...»

Marvelous Micro Electro-Mechanical Systems

Science & technology   |   Electronics   |   Term papers   |   09/21/2009   |   .pdf   |   4 pages
Document abstract : «Attention to microelectromechanical systems (MEMS) continues to increase worldwide and MEMS has a phenomenal growth in the past decade because of wide range of application. MEMS technology is become most rapid changing field today, this is due to...»

Synopsis abstract : «Introduction. Challenges for MEMS products. MEMS manufacturing procedure. Packaging of MEMS. Types of MEMS packaging. Methods of MEMS packaging. MEMS applications. Conclusions. References....»

Simulation of transient for power transmission lines

Science & technology   |   Electronics   |   Term papers   |   09/21/2009   |   .pdf   |   6 pages
Document abstract : «Switching operations, faults, lightning surges, and other intended or unintended disturbances cause temporary over voltages and currents in power transmission lines. The system must withstand these over voltages with a certain probability or their...»

Synopsis abstract : «Introduction. Origin of transient in power system. Traveling waves phenomenon in analysis of transmission lines. The effect of short length of cable in transmission line. Closing of registors for EHV . Conclusions. Referenc...»

Blackberry technology

Science & technology   |   Electronics   |   Term papers   |   09/22/2009   |   .doc   |   5 pages
Document abstract : «Mobile solutions are developing and so is its technology. Like the early Web boom, we have the mobile era coming soon. New technologies and new platforms in the mobile world are coming into light. Technology seems to discover into the perspective of...»

Synopsis abstract : «Introduction. Characteristics of black berry technology. Operating system. Supporting software. Working of black berry. An overview of push technology. Working of push technology. Benefits. Conclusion....»

An overview of digestive system in humans and digestive disorders

Science & technology   |   Medical studies   |   Term papers   |   09/22/2009   |   .doc   |   8 pages
Document abstract : «Digestion is the process of break down of (catabolic) complex organic macro molecules into simple assimilable micro molecules. This involves several biocatalysts called enzymes. Therefore digestion could also be said as the enzymatic hydrolysis of...»

Synopsis abstract : «Introduction. The alimentary canal. Buccal cavity. Description of teeth and tongue. Functions of the tongue. Description of pharynx, oesophagus, stomach, small intestine, large intestine and rectum. Digestive glands. Functions of salivary...»

The hybrid electric vehicle as a cultural object

Science & technology   |   Electronics   |   Term papers   |   09/23/2009   |   .doc   |   9 pages
Document abstract : «The American public imagination is steeped in images of cars. Long ago, the car took over for the horse as the best romantic vehicle to ride off into the sunset. Pop culture throughout the existence of the car is riddled with references to it. Just...»

Synopsis abstract : «Introduction. The first try: A brief history of the electric car. Zero Emission Vehicle Mandate . The HEV: Close enough. The birth of new technology. The rise of the hybrid: Green marketing. The commercial viability of lower-emission vehicles. Green...»

Software Processes

Science & technology   |   Computer science   |   Presentation   |   09/23/2009   |   .ppt   |   18 slides
Document abstract : «A software process model is an abstract representation of a process. It presents a description of a process from some particular perspective. Based on the transformation of a mathematical specification through different representations to an...»

Synopsis abstract : «Introduction. Generic software process models. The waterfall model. Evolutionary development. Formal systems development. Reuse-based development. Waterfall model problems. Evolutionary development. Exploratory development . Throw-away...»

A study on dysentery

Science & technology   |   Medical studies   |   Term papers   |   09/25/2009   |   .doc   |   3 pages
Document abstract : «Dysentery represents a plaque not just of the intestines, but a plague of developing nations as well. Lack of potable water and malnutrition create an environment for disease to flourish. US foreign aid has been primarily for show and not effect....»

Synopsis abstract : «Introduction. Meaning of Enterobacteriaceae . Understanding how dysentery is transmitted. Contaminated food/water . Higher incidence of dysentery in developing countries. The efforts by the US to avoid dysentery. Dysentery as a major concern in...»

The tree species specificity and inter specific interactions of Spanish moss

Science & technology   |   Biology   |   Term papers   |   09/25/2009   |   .doc   |   5 pages
Document abstract : «Inter specific interactions are the relationships demonstrated between two species and how one species affects the other. The four main types of these interactions are competition, predation, commensalisms, and mutualism. Spanish moss is a plant...»

Synopsis abstract : «Abstract. Introduction. The four main inter specific interactions . Observing and analyzing the interactions . Tillandsia Usneoides / Spanish Moss. Spanish moss coverage on palm trees. Spanish moss is tree species specific. The statistical...»

A study on stem cells

Science & technology   |   Biology   |   Term papers   |   09/25/2009   |   .doc   |   7 pages
Document abstract : «With millions of people dying and suffering every year from various diseases, scientists are becoming more and more eager to find cures and treatments. One potential treatment emanates from the research of human stem cells. Stem cells are...»

Synopsis abstract : «Introduction. History of stem cell research . Uniqueness of stem cells. Properties of stem cells. Signals that control a cell's genes . The most unique property of stem cells. Embryonic stem cells and adult stem cells. Process of characterization to...»

Spectrum of consciousness: Evolution of the spectrum

Science & technology   |   Physics & chemistry   |   Term papers   |   10/01/2009   |   .doc   |   13 pages
Document abstract : «In this chapter, Wilber explains how the information given in the previous chapters relate to the spectrum model of consciousness. He summarizes the previous chapters and shows how they relate to the creation of the spectrum. Wilber describes the...»

Synopsis abstract : «Introduction. The idea of consciousness as a spectrum. The recognizable dualism . The third level of consciousness: The ego. The tertiary dualism. The spectrum of consciousness . Relationship between the immaterial experience of consciousness and...»

Two health-care law case studies

Science & technology   |   Medical studies   |   Term papers   |   10/07/2009   |   .doc   |   4 pages
Document abstract : «Drs. Allison Jones and Emily Johnson will have to abide by several standards when attempting to open their practice in Tesson, Allstate, particularly in regard to their desire to enlist a physician's assistant to do many of their main undertakings...»

Synopsis abstract : «Introduction: Problem - Physicians, physician assistants and nurses . An overview of Section A. 334.104.. The Board of Healing Arts. Problem: The birthing center . Issues to develop in a cause of action by Hernandez against Dr. Jones and the Nurse...»

Data Warehouse

Science & technology   |   Electronics   |   Term papers   |   10/08/2009   |   .pdf   |   5 pages
Document abstract : «Nowadays data is everywhere and yet we are not able to access proper data that we want effectively. You can't get the data that you want, you can't understand the data you found and you can't effectively use the data you found. There is data in...»

Synopsis abstract : «Introduction. Meaning of a data warehouse. Usage of data warehouse. Decision support. Evolution of decision support. The data warehousing process. OLTPS vs data warehouse. Characteristics. Data marts. Building a data mart. Warehouse models and...»

Reliable group key distribution protocol with source authentication

Science & technology   |   Electronics   |   Term papers   |   10/08/2009   |   .pdf   |   4 pages
Document abstract : «IP multicast provides efficient group communications. It conserves network resources by transmitting a single copy of the packet on each link. It also supports large multicast groups with frequent membership changes. But it does not ensure secure...»

Synopsis abstract : «Introduction. Notations. Logical key tree at group controler. Join operation. Leave operation. Replay attack. Scenario 1. Session hijack. Scenario 2. Delayed disclosure. Scenario 3. The approach. One-way chains. Authentication procedure. Simple join...»

Biometric security system

Science & technology   |   Electronics   |   Term papers   |   10/08/2009   |   .pdf   |   5 pages
Document abstract : «One of the most common causes of network security breaches is easily guessable or insecure passwords. Many users choose common names or words that are in any dictionary; others use the same passwords everywhere or write them down where they can be...»

Synopsis abstract : «Introduction. The need for security. History of biometrics. How biometrics works?. Capture. Extraction. Comparison. Decision. Identification by biometrics. Fingerprints. Iris/retinal. Face. Voice. Hand geometry. Hand writing. Biometrics...»

Security issues in on-demand grid computing

Science & technology   |   Computer science   |   Term papers   |   10/08/2009   |   .pdf   |   7 pages
Document abstract : «Utility computing is defined to be the on demand delivery of infrastructure, applications, and business processes in security-rich, shared, scalable, and standards-based computer environment over the Internet through fee. Customers will hit into IT...»

Synopsis abstract : «Abstract. Introduction. Security fundamentals. Authentication. Access control. Data integrity. Data confidentiality. Key management. Important grid security terms. Symmetric encryption. Asymmetric encryption. Secure Socket Layer/Transport Layer...»

Image based watermarking and authentication mechanism

Science & technology   |   Electronics   |   Term papers   |   10/08/2009   |   .pdf   |   5 pages
Document abstract : «Popular transforms include the Discrete Cosine Transform (DCT) and the Discrete Wavelets Transform (DWT) that allow us to place the water mark easily into the perceptually significant parts of an image. This leads to a mark that is more resistant to...»

Synopsis abstract : «Abstract. Introduction. Principle of the watermark application. Formation of the watermark in DCT. Formation of the watermark in DWT. Requirements on watermarking schemes. Experiment results. Mid frequency band results. DWT result using PN...»

An application layer communication interface for a combat management system for naval ships

Science & technology   |   Electronics   |   Term papers   |   10/08/2009   |   .pdf   |   5 pages
Document abstract : «The objective of the system is to provide a state of the art technology "Decision Support System" to the command. The system is referred as "Combat Management System: CMS-SNF ". The system is hosted on the naval ships. The CMS-SNF system is...»

Synopsis abstract : «Abstract. Introduction. Changing the very nature of the battle space. Operational architecture view. Systems architecture view. Technical architecture view. Combat management system (CMS). Scope. System capabilities. TDS data server. Network health...»

Code division switching

Science & technology   |   Electronics   |   Term papers   |   10/08/2009   |   .pdf   |   4 pages
Document abstract : «Code division may be considered as a generalized method for access and switching in communication networks. Such an approach may be viewed as a user encoding process where the choice of the code and spreading types can create a large set of access...»

Synopsis abstract : «Abstract. Introduction. Switch architecture. CDS architecture for code multiplexed channels. CDS architecture for multiplexed channels. Evaluation of the switch interference. The switch interference coupling. The switch control and optimization. The...»

Role of optical CDMA in access networks

Science & technology   |   Electronics   |   Term papers   |   10/08/2009   |   .pdf   |   3 pages
Document abstract : «Optical code-division multiple access (OCDMA) combines the large bandwidth of the fiber medium with the flexibility of the CDMA technique to achieve high-speed connectivity. CDMA was originally investigated in the context of radio frequency...»

Synopsis abstract : «Abstract. Introduction. Optical CDMA for access networks. Fair division of bandwidth. Flexibility. Network control and management. Service differentiation. Security. Technological barriers to acceptance. Shot and beat noise. Forward error...»

Modified locally delayed latching approach for data synchronization in GALS SOC's

Science & technology   |   Computer science   |   Term papers   |   10/08/2009   |   .pdf   |   5 pages
Document abstract : «IP core based Systems on chip (SOC) require multiple frequency domain clocks and it become difficult to obtain all cores in SOC's of the same frequency. As IP core based SOC's offer multiple advantages such as high degree of modularity, less time to...»

Synopsis abstract : «Abstract. Introduction. Various schemes for clock generation. Pausible clock generation. Data driven clock generation. Stoppable clock generation. Locally delayed latching. Decoupled input port. Decoupled output port. Experimental reults...»

Neural network implementation

Science & technology   |   Electronics   |   Term papers   |   10/08/2009   |   .pdf   |   4 pages
Document abstract : «CMOL circuits seem more suitable for the implementation of naturally defect-tolerant architectures, including artificial neural networks. Neural Networks designed using CMOL are named as "Cross Nets" and they may eventually exceed the mammal brain...»

Synopsis abstract : «Abstract. Introduction. Types of neural networks. Implementing neural networks. Basic network structure. Conclusion. References....»

Parallel algorithm for solving the system of simultaneous linear equations by Jacobi method on star graph

Science & technology   |   Math   |   Term papers   |   10/08/2009   |   .pdf   |   4 pages
Document abstract : «The problem of solving the system of simultaneous linear equations with large number of unknowns often takes more time in unprocessed systems. Since parallel computing systems are now available, these can be solved exploiting the large processing...»

Synopsis abstract : «Abstract. Introduction. Jacobi Method [10]. The star graph. Processor ordering. Routing in the star graph. Building Hamiltonian circuit and path. The parallel algorithm. The initialization phase. The main phase. Computation...»

Comparative study of memory consistency models in prevalent software-dsm systems

Science & technology   |   Computer science   |   Term papers   |   10/08/2009   |   .pdf   |   4 pages
Document abstract : «Often computational resources at a single location are not enough for computation. In addition, it is not financially viable to invest in high-end machines. Currently, network of computers and clustering technologies has gained significant attention...»

Synopsis abstract : «Abstract. Introduction. Memory consistency models. Overview of prevalent software - DSM systems. Teamster. JUMP: JIAJIA Using Migrating-Home Protocol. Comparison of SDSMS based on consistency models. Conclusions. Refe...»

A fractionally spaced DFE with exponential step-size LMS algorithm

Science & technology   |   Electronics   |   Term papers   |   10/08/2009   |   .pdf   |   4 pages
Document abstract : «In a multi path environment within time disruptive channels, modulation bandwidth greater than the coherence bandwidth of the radio channel introduces inter symbol interference (ISI) resulting into high bit error rate (BER) [1]. The performance of...»

Synopsis abstract : «Abstract. Introduction. Overview of AN FS-ADFE. Adaptation of algorithm . Adaptation techniques in equalizers. Adaptation algorithm n the proposed FS-ADFE. x/4 -DQPSK modem. Implementational issues. Equalizer implementation. Results and discussions...»

Secure CORBA adapter: Business applications integration with SSL security

Science & technology   |   Computer science   |   Term papers   |   10/08/2009   |   .pdf   |   4 pages
Document abstract : «CORBA (Common Object Request Broker Architecture) added great values to Distributed computing by providing RPC architecture. This CORBA is based on Object Model developed by OMG itself. This architecture supports object oriented languages like C++,...»

Synopsis abstract : «Abstract. Introduction. CORBA - Common Object Request Broker Architecture. SSL - Secure Sockets Layer. Publication service. Subscription service. Request-response service. Request-response invocation service. Architecture of the adapter. Message...»

Optimization of network bandwidth using image compression

Science & technology   |   Computer science   |   Term papers   |   10/08/2009   |   .pdf   |   4 pages
Document abstract : «In the early days of computing, data was numerical. Later, textual data became more common. Today, we see many other forms of data: voice, music, speech, images, computer graphics, etc. Although such data has been in use for a long time, their use...»

Synopsis abstract : «Abstract. Introduction. Multimedia data and their transmission bandwidth. Image compression as bandwidth management. Fast buffer reservation. System models. Conclusions. References....»

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