Application Note 42047 Power Factor Correction (PFC) Basics


What is Power Factor?
Power factor (pf) is defined as the ratio of the real power (P)
to apparent power (S), or the cosine (for pure sine wave for
both current and voltage) that represents the phase angle
between the current and voltage waveforms (see Figure 1).
The power factor can vary between 0 and 1, and can be either
inductive (lagging, pointing up) or capacitive (leading, pointing
down). In order to reduce an ....etc

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IPV6

SUBMITTED TO:- SUBMITTED BY:-
MS. RAJNEESH RANI AKHIL KUMAR SINGH(09203001)
RAM JI ( 09203015)

Internet Protocol version 6 (IPv6) is the next-generation Internet Protocol version designated as the successor to IPv4, the first implementation used in the Internet and still in dominant use currently. It is an Internet Layer protocol for packet-switched internetworks. The main driving force for the redesign of Internet Protocol was the foreseeable IPv4 address exhaustion. IPv6 was defined in Decemb ....etc

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hey guys i need to match sketch image to real photo. any idea about this. if anyone can provide a sample code or code in java would be better thank you. ....etc

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MICROPHONES AND SOUND BASICS


Microphone

Microphone is a transducer.It converts sound wave (acoustical energy) into electrical energy

Five important characteristics of microphone

Operating principle

Frequency response

Directionality of microphone

Electrical output and

Physical design of the microphone

Pressure-operated Microphones

Sound pressure is applied on one side of the diaphragm.

Electrical output is proportional to the sound pressur ....etc

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The basics of a firewall


What is a firewall? :-
A firewall may be a standalone system,a software application or a hardware device that blocks/permits traffic,prevents unauthorized users or malicious traffic from accessing a network or a system.It acts as a barrier or a membrane between two or more networks.
The primary job of a firewall is to secure the inside network from the outside.Depending upon the policies or access co ....etc

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SQL Server Basics for non-DBAs
Independent consultant (Austin, TX)
Author of several SQL Server books
Instructor, Implementing and Managing SQL Server 2005 (Keystone Learning)
Info: http://AnilDesai.net or [email protected]
Overview and Agenda
SQL Server 2005 Platform Overview
Managing Databases
Database Maintenance and Data Protection
Securing SQL Server
Managing Database Objects / Best Practices
SQL Server 2005 Platform Overview
Understanding SQL Server s features, services, and administrati ....etc

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Hardware for image processing - Basics Eye Human vision sensor

History

Photography appeared in XIX century.
Ideas for developing fax machines and usage of telegraphic lines for
image submission was born during the World War I.
The idea about TV development was born around 1930.
The key event in digital image processing was development of the
first electronic computing machines. These machines enabled simple
and fast image processing.
The second important event was astronomical exploration ....etc

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Digital Image Basics



Introduction

When using digital equipment to capture, store, modify and view photographic
images, they must first be converted to a set of numbers in a process called digitization
or scanning. Computers are very good at storing and manipulating numbers, so
once your image has been digitized you can use your computer to archive, examine,
alter, display, transmit, or print your photographs in an incredible variety of ways.

Pixels and Bitmaps

Digital images are composed ....etc

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