As current authentication mechanisms evolve and as new authentication mechanisms are introduced, system entry services such as login, rlogin, and telnet must continually be customized to incorporate these changes.

With the Pluggable Authentication Module (PAM) framework, multiple authentication technologies can be added without changing any of the login services, thereby preserving existing system environments. PAM can be used to integrate login services with different authentication technologies, such as RSA, DCE, Kerberos, S/Key, and smar ....etc

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Active Gate Control for Current Balancing of
Parallel-Connected IGBT Modules
in Solid-State Modulators

Dominik Bortis, Student Member, IEEE, Juergen Biela, Member, IEEE, and Johann W. Kolar, Senior Member, IEEE


Abstract—

In modern pulsed power systems, often, fast solidstate
switches likeMOSFETs and insulated gate bipolar transistor
(IGBT) modules are used to generate short high power pulses. In
order to increase the pulsed power, solid-state switches have to be
connected in series or in par ....etc

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CHAPTER 1
INTRODUCTION
1.1 OVERVIEW
With the increasing use of distributed systems, users often need to access multiple resources to finish a single business transaction. Traditionally, users have had to sign on to all these systems, each of which may involve different usernames and authentication requirements. With the introduction of the single sign-on technique, users can login once and be authenticated for all systems involved in a given business transaction.
PAM and PAM-aware applications reduce the complexi ....etc

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A few designs for remote control switches, using VG40T and VG40R remote control pair, are shown here.
The miniature transmitter module shown in Fig. 1, which just measures 34 mm x 29 mm x 10 mm, can be used to operate all remote control receiver-cum-switch combinations described in this project. A compact 9-volt PP3 battery can be used with the transmitter. It can transmit signals up to 15 metres without any aerial. The operating frequency of the transmitter is 300 MHz. The following circuits, using VG40R remote control receiver module measur ....etc

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Presented by;
K.HEMAKISHORE
P.MANASA
K.SAIKUMAR
A.D.V.PRASAD


BER Performance Analysis of Asynchronous DS-CDMA Systems Using BPSK Modulation over Fading Channels
ABSTRACT :
An asynchronous binary DS-CDMA system using
random spreading sequences is considered when communicating
over various fading c ....etc

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trustmanager model
energy watcher model
....etc

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As current authentication mechanisms evolve and as new authentication mechanisms are introduced, system entry services such as login, rlogin, and telnet must continually be customized to incorporate these changes. With the Pluggable Authentication Module (PAM) framework, multiple authentication technologies can be added without changing any of the login services, thereby preserving existing system environments. PAM can be used to integrate login services with different authentication technologies, such as RSA, DCE, Kerberos, S/Key, and smart ca ....etc

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Development of street lighting system-based novel high-brightness LED modules
The development of high-power light emitting diode (LED) for street lighting is a continuously evolving topic. greater energy efficiency, long operating life and light control are the major plus points of this technique. 9LEDM (9-LED module) and adaptive driver based alternative lighting system is shown here. thermal, photometric, power electronics techniques have been used to create the 9 LEDM. The 9LEDM offers a price less than 1$/Watt (W) and luminous fl ....etc

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Operation Analysis of Novel UPFC Based on H-Bridge Modules

Abstract-.

This paper proposes a novel UPFC based on Hidge
modules, isolated through single-phase multi-winding
transformers. The dynamic performance of proposed system was
analyzed by simulation with EMTDC, assuming that the UPFC is
connected with the 138-kV transmission line of one-machineinfinite-
bus power system. The proposed system can he directly
connected to the transmission Line without series injection
transformers. It has tlenhility in ....etc

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please tell about concepts of spread spectrum communication coded bpsk and dpsk demodulators....... ....etc

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