AN OVERVIEW OF SMART ANTENNA TECHNOLOGY FOR MOBILE COMMUNICATIONS SYSTEMS


WHAT ARE SMART ANTENNAS?
Base station antennas have up till now been omnidirectional
or sectored. This can be regarded as a “waste” of power as
most of it will be radiated in other directions than toward the
user. In addition, the power radiated in other directions will
be experienced as interference by other users. The idea of
smart antennas is to use base station antenna ....etc

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Reality is a computer-based technology which incorporates specialized input and output devices to aVirtualllow the user to interact with and experience an artificial environment as if it were the real world. A VR system permits the user to explore a three-dimensional virtual - or artificial - environment and to interact with lifelike and/or fantasy elements created by the designer. In the virtual world, the user can do things as routine as throwing a ball or as fantastic as flying through space. And these things can be made to occur by somethi ....etc

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GSM Security Overview




GSM Security Goals

Confidentiality and Anonymity on the radio path
Strong client authentication to protect the operator against the billing fraud
Prevention of operators from compromising of each others’ security
Inadvertently
Competition pressure

GSM Security Design Requirements

The security mechanism
MUST NOT
Add significant overhead on call set up
Increase bandwidth of the channel
Increase error rate
A ....etc

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PULSE DETONATION ENGINE TECHNOLOGY: AN OVERVIEW


Introduction
Imagine aircraft crossing continents and oceans at higher speeds and efficiencies.
Imagine spacecraft launching with higher safety factors and lower costs. Imagine
military craft operating in many flight conditions with increased performance. This is the
potential for Pulse Detonation Engine (PDE) technology; it has the capability to
revolutionize the aviation industry.


Description of Pu ....etc

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Embedded systems are increasingly becoming integral parts of almost all technology-oriented applications. Embedded systems are the unsung heroes of much of the technology we use today- video games, washing machines etc. The appliances using embedded systems are pre programmed to perform a dedicated or narrow range of functions as part of a large system, usually with minimal end user interaction and optimum performance. Embedded systems are used in navigation tools like global positioning systems (GPS), automated teller machines(ATMâ„¢s), ne ....etc

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Abstract
Overview of Bluetooth wireless technology, the Bluetooth SIG, and relationship to IEEE 802.11 specifications and their use with Bluetooth enabled products. Presented for the purpose of increasing awareness of Bluetooth SIG activities related to co-existence and use of IEEE 802.11 wireless technology in cooperation with Bluetooth wireless technology.
Bluetooth SIG, Inc.
Seven Promoter Member Companies:
Ericsson, Intel, Lenovo, Microsoft, Motorola, Nokia, Toshiba
Owners of Bluetooth Specification ....etc

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Risk in financial services: An Overview

Abstract :

Today financial services companies operate in increasingly complex, competitive and global markets. The ability to manage risks across geographies, products, asset classes, customer segments and functional departments is of paramount importance and inability to manage the risk can cause the irreparable damage and financial risks are increasing day by day especially in insurance, commercial banking and investment banking. The objective of this pa ....etc

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Embedded systems are increasingly becoming integral parts of almost all technology-oriented applications. Embedded systems are the unsung heroes of much of the technology we use today- video games, washing machines etc. The appliances using embedded systems are pre programmed to perform a dedicated or narrow range of functions as part of a large system, usually with minimal end user interaction and optimum performance. Embedded systems are used in navigation tools like global positioning systems (GPS), automated teller machines(ATM's), network ....etc

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