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Interview Tips

2010-02-18T04:27:00.000-08:00

Hi Friends, There are three main steps in the interview process: preparation, the interview itself, and follow-up. PreparationKnow the exact place and time of the interview, the interviewer's full name and the correct pronunciation, and his or her title.Research pertinent facts about the company, such as annual sales revenue, main businesses and products, and locations. A visit to the company's

List of Universities in India & Contact Address

2010-02-06T06:07:00.000-08:00

List of Universities in India 1. Amity University, Private University and a part of Amity Education Group with over 50000 students across 600 acres of campuses. [ http://www.amity.edu/] - Amity Campus, Sector 44, Noida- 201303. Tel: 1800-11-00-00 (Toll Free)2. Amravati University, Amravati 444602. Bihar. Fax 91-0721-662135 -Tel 91-0721-6620933. Andhra University, Waltair, Vishakhapatnam 530003. -

ELECTROMECHANICAL RELAYS

2010-02-06T05:56:00.000-08:00

ELECTROMECHANICAL RELAYS The electromechanical relays are based on the comparison between operating torque/force and restraining torque/force. The VA burden of such relays is high.The characteristics of these relays have some limitations.Each relay can perform only one protective function. Such relays are used for simple and less costly protection purposes.For important and costly equipment and

Regulator (automatic control)

2010-02-06T05:52:00.002-08:00

Regulator (automatic control) In automatic control, a regulator is a device which has the function of maintaining a designated characteristic. It performs the activity of managing or maintaining a range of values, in a machine. The measurable property of a device is managed closely by specified conditions or an advance set value; or it can be a variable according to a predetermined arrangement

Combination (hybrid) regulators

2010-02-06T05:52:00.001-08:00

Combination (hybrid) regulatorsMany power supplies use more than one regulation method in series. For example, the output from a switching regulator can be further regulated by a linear regulator. The switching regulator accepts a wide range of input voltages and efficiently generates a (somewhat noisy) voltage slightly above the ultimately desired output. That is followed by a linear regulator

Types of Active regulators

2010-02-06T05:50:00.000-08:00

Linear regulatorsLinear regulators insert a variable resistance in series with the load current. In the past, one or more vacuum tubes were commonly used as the variable resistance. Modern designs use one or more transistors instead. Linear designs have the advantage of very "clean" output with little noise introduced into their DC output.Entire linear regulators are available as integrated

Comparing linear vs. switching regulators

2010-02-06T05:49:00.001-08:00

Comparing linear vs. switching regulatorsSometimes only one or the other will work: Linear regulators are best when low output noise is required.Linear regulators are best when a fast response to input and output disturbances is required.Switching regulators are best when power efficiency is critical (such as in portable computers).Switching regulators are required when the only power supply is a

Active regulators

2010-02-06T05:48:00.002-08:00

Active regulatorsBecause they (essentially) dump the excess current not needed by the load, shunt regulators are inefficient and only used for low-power loads. When more power must be supplied, more sophisticated circuits are used. In general, these can be divided into several classes:Linear regulators Switching regulators SCR regulators

DC voltage stabilisers

2010-02-06T05:48:00.001-08:00

DC voltage stabilisersMany simple DC power supplies regulate the voltage using a shunt regulator such as a zener diode, avalanche breakdown diode, or voltage regulator tube. Each of these devices begins conducting at a specified voltage and will conduct as much current as required to hold its terminal voltage to that specified voltage. The power supply is designed to only supply a maximum amount

AC voltage stabilisers

2010-02-06T05:47:00.001-08:00

AC voltage stabilisersA voltage stabiliser is a type of household mains regulator which uses a continuously variable autotransformer to maintain an AC output that is as close to the standard or normal mains voltage as possible, under conditions of fluctuation. It uses a servomechanism (or negative feedback) to control the position of the tap (or wiper) of the autotransformer, usually with a motor

Mains regulators

2010-02-06T05:46:00.002-08:00

Mains regulatorsElectromechanical regulators have also been used to regulate the voltage on AC power distribution lines. These regulators generally operate by selecting the appropriate tap on a transformer with multiple taps. If the output voltage is too low, the tap changer switches connections to produce a higher voltage. If the output voltage is too high, the tap changer switches connections

Electromechanical regulators

2010-02-06T05:46:00.001-08:00

Electromechanical regulatorsEarly automobile generators and alternators had a mechanical voltage regulator using two or three relays and various resistors to stabilize the generator's output at slightly more than 6 or 12 V, independent of the engine's rpm or the varying load on the vehicle's electrical system. More modern designs use solid state technology (transistors) to do the same.These

Types of Voltage regulator

2010-02-06T05:44:00.000-08:00

Types of Voltage regulator1 Electromechanical regulators2 Mains regulators3 AC voltage stabilisers4 DC voltage stabilisers5 Active regulators5.1 Linear regulators5.2 Switching regulators5.3 Comparing linear vs. switching regulators5.4 SCR regulators5.5 Combination (hybrid) regulators

Voltage regulator

2010-02-06T05:43:00.000-08:00

Voltage regulatorA voltage regulator is an electrical regulator designed to automatically maintain a constant voltage level.It may use an electromechanical mechanism, or passive or active electronic components. Depending on the design, it may be used to regulate one or more AC or DC voltages.With the exception of shunt regulators, all voltage regulators operate by comparing the actual output

EMBEDDED SOFTWARE PROPERTIES

2010-02-06T05:35:00.002-08:00

EMBEDDED SOFTWARE PROPERTIES• Timeliness• Concurrency• Liveness• Interfaces• Heterogeneity• ReactivityTIMELINESS• Time: systematically removed from theories of computation• RTOSes often reduce the characterization of a task to a single number (its priority)• But: computation does take time– However, even with infinitely fast computers, time

NEW TRENDS IN EMBEDDED SYSTEM H/W

2010-02-06T05:35:00.001-08:00

NEW TRENDS IN EMBEDDED SYSTEM H/W• Systems-on-chip –Usual (or desired) specs:• 32-bit RISC CPU• Built-in interfaces to RAM and ROM• Built-in DMA, interrupt and timing controllers• Built-in interfaces to disk or flash memory• Built-in Ethernet/802.11 interfaces• Built-in LCD/CRT interfaces –New SOCs appearing almost every week!• Examples – Intel StrongARM SA-1110, Motorola PowerPC

COMPANIES ARE WORKING ON EMBEDDED SYSTEMS AND APPLICATIONS

2010-02-06T05:34:00.000-08:00

COMPANIES ARE WORKING ON EMBEDDED SYSTEMS AND APPLICATIONS• AXES technologies• CG Smith• Converge Labs• Future Software• IBM• LUCENT• MASCON• Sundaram Telematics• Visteon• WIPRO• TCS• Infosys• Robert Bosch• Kshema Technologiesand so on…

THE JOB OPPORTUNITIES IN THE AREAS OF EMBEDDED SYSTEMS

2010-02-06T05:33:00.001-08:00

THE JOB OPPORTUNITIES IN THE AREAS OF EMBEDDED SYSTEMS • Hardware Design Engineer• Software Design Engineer• Device Driver Developer• Kernel Developer• Network Engineer• RTOS Programmer• Software Engineer in Research & Development

FUTURE OF EMBEDDED CONTROL

2010-02-06T05:32:00.000-08:00

FUTURE OF EMBEDDED CONTROL • Intelligent products are used everyday - Mobile Phones, Printers, Washing Machines, Microwave Ovens, Water Purifier, Air Conditioners etc.• New generation Embedded Control will include Internet connectivity, RF controls & Blue Tooth.

EMBEDDED SYSTEMS IN TODAY’S WORLD

2010-02-06T05:31:00.000-08:00

EMBEDDED SYSTEMS IN TODAY’S WORLDSIGNAL PROCESSING SYSTEMS -Real-Time Video, Set-top Boxes, DVD Players, Medical Equipment, Residential GatewaysDISTRIBUTED CONTROL -Network Routers, Switches, Firewalls, Mass Transit Systems, ElevatorsSMALL SYSTEMS -Mobile Phones, Pagers, Home Appliances, Toys, Smart Cards, MP3 players, PDAs, Digital Cameras, Sensors, Smart BadgesBENEFITS OF EMBEDDED CONTROL

EMBEDDED SYSTEMS - EARLY HISTORY

2010-02-06T05:29:00.000-08:00

EMBEDDED SYSTEMS - EARLY HISTORY• Late 1940’s: MIT Whirlwind computer was designed for real-time operations.– Originally designed to control an aircraft simulator.• First microprocessor was Intel 4004 in early 1970’s.• HP-35 calculator used several chips to implement a microprocessor in 1972.• Automobiles used microprocessor - based engine controllers starting in 1970’s.– Control

EXAMPLES OF EMBEDDED SYSTEMS

2010-02-06T05:28:00.000-08:00

EXAMPLES OF EMBEDDED SYSTEMS· Automatic Teller Machines or ATM's & Bank Vaults· Automotive & Automobile Engine Management systems: Electronic Dashboards, ABS brakes, transmission controls.· Blue Tooth enabled Network Synchronization Applications· Control Systems (Manufacturing, Cryogenics, Electric Power)· Controls for Digital Equipment: CD Players, TV Remote,

EMBEDDED SYSTEMS COMPONENTS

2010-02-06T05:25:00.000-08:00

EMBEDDED SYSTEMS COMPONENTS MICRO CONTROLLERS (µC) MICRO PROCESSORS (µP)DIGITAL SIGNAL CONTROLLERS (DSC)DIGITAL SIGNAL PROCESSORS (DSP) BUSSES (Data, Address, Input/output)SYSTEM CLOCK - Steps µC / µP Through Each InstructionREAD ONLY MEMORY (ROM): Permanently Loaded With Instructions (FIRMWARE)RANDOM ACCESS MEMORY (RAM)STORES DATA IN PROCESSING / SHARES DATA WITH EXTERNAL PARTNERSREAL TIME

FEATURES OF AN EMBEDDED SYSTEM

2010-02-06T05:24:00.000-08:00

FEATURES OF AN EMBEDDED SYSTEMReal-Time Operation• Reactive: computations must occur in response to external events• Correctness is partially a function of timeSmall Size, Low Weight• Hand- held electronics and Transportation applications -- weight costs moneyLow Power• Battery power for 8+ hours (laptops often last only 2 hours)Harsh environment• Heat, vibration, shock, power fluctuations, RF

Applications of Embedded Systems

2010-02-06T05:22:00.000-08:00

Applications of Embedded Systems General Computing• Applications similar to desktop computing, but in an embedded package• Video games, set- top boxes, wearable computers, automatic tellersControl Systems• Closed- loop feedback control of real- time system• Vehicle engines, chemical processes, nuclear power, flight controlSignal Processing• Computations involving large data streams• Radar, Sonar,

CHARACTERISTICS OF AN EMBEDDED SYSTEM

2010-02-06T05:21:00.000-08:00

CHARACTERISTICS OF AN EMBEDDED SYSTEM· Sophisticated functionality· Real-Time Operation· Low Manufacturing Cost· Low Power Consumption· Eliminates Necessity of Complex Circuitry· Smarter Products· Smaller Size· User Friendly·

EMBEDDED SYSTEM ----2

2010-02-06T05:20:00.000-08:00

Embedded systems: What are they?A special purpose computer built into a larger device• ‘Special-purpose’Embedded systems have a (more or less) well-defined purpose Contrast with: general purpose computers (PCs etc)• ‘Built into a larger device’Embedded systems are (usually) part of a larger device, augmenting its capabilitiesWHY EMBEDDED SYSTEMS It is EMBEDDED because the Micro Controller is ‘

EMBEDDED SYSTEM Introduction

2010-02-06T05:12:00.000-08:00

EMBEDDED SYSTEMS An embedded system is a special-purpose computer system, which is completely encapsulated by the device it controls. An embedded system has specific requirements and perform pre-defined tasks, unlike a general-purpose personal computer. An embedded system is a programmed hardware device. A programmable hardware chip is the 'raw material' and it is programmed with particular

Aricent Recent 6 Question Papers with Answers(Hughes Software System)

2009-11-30T06:36:00.000-08:00

PAPER1: All the following questions are memory based and have been submitted by candidates who appeared for the tests/interviews in the past. HUGHES Software System Systems Q1) There’s a circuit given using three nand gates with two inputs and one output .you have to find the output.a) orb) andc) xorans- a) or Q2) Suggest a sorting algo which is efficient( in worst case) to 10 valuesa) binary

General IMPORTANT 'C' Questions

2009-11-30T06:30:00.001-08:00

Section 1. Declarations and Initializations1.1: How do you decide which integer type to use?A: If you might need large values (tens of thousands), use long. Otherwise, if space is very important, use short. Otherwise, use int.1.4: What should the 64-bit type on new, 64-bit machines be?A: There are arguments in favor of long int and long long int, among other

Aricent Questions-4(HUGES SOFTWARE)

2009-11-30T06:29:00.000-08:00

HUGES SOFTWARE (A)Aptitude :25 Qns, 20 Minutes 1. 2 x 4 analytical GRE type qns 2. 2-3 Reasoning qns (GRE type) 3. Probability of getting a sum of 7 when two dices are thrown together 4. Rest quantitative questions (B) Technical: 50 Qns, 45 Minutes 1. 3 qns on operating systems. I qn on dijkestra algorithm 2. Using which pin it's possible to address 16 bit addresses even though

Aricent Questions-3( HUGES SOFTWARE)

2009-11-30T06:25:00.000-08:00

HUGES SOFTWARE 1. CSMA/Cd protocol used in Ans : Ethernet 2. Checksum in IP packet is Ans : Sum of the bits and 9's complement of sum 3. Inselective repeat Max Seq is given find windowsize i.e. Ans : (15+1)/2 = 8 4. Main memory cache direct mapping Ans : 64 5. Address lines and data lines for 4K x 16 Ans : Addr 12, Data 16 6. Infix to postsize commession uses Ans : operator stack 7.

Interview Tips

2009-11-30T06:21:00.000-08:00

Interview SectionAfter clearing the written test, companies usually interview the candidates to gauge his/her capabilities and personality. Basically there are two kinds of interviews, the techincal one, where stress is laid on checking your fundamentals in your core subjects and the HR one , where your communication skills and personality is put to the test.Check out the following sections for

Aricent Questions-2(Hughes Software System)

2009-11-30T06:19:00.000-08:00

Hughes Software System Test#2 1. There was a circuit given using three nand gates with two inputs and one output.Find the output.a) ORb) ANDc) XORd) NOTAns. (a)2. Suggest a sorting algorithm which is efficient (in worst case) to 10 valuesa) Binary treeb) Selectionc) Bubbled) Any of the above3. What is the number of comparisons in the worst case to merge two sorted lists containing n elements

Aricent Questions(Hughes Software System)

2009-11-30T06:16:00.000-08:00

Hughes Software System 1. Find the probability of getting a number with 7 between 100 and 999 (both inclusive).2. There are 10 items in a box, out of which 3 are defective.2 balls are taken one after the other.What is the probability that both of them are defective?3. Context free grammar is accepted bya) finite automatab) push down automatac) two way bounded automatad) both b and c4. Which is

C frequently asked questions

2009-11-30T06:14:00.000-08:00

---------- cquest --------Some of the C frequently asked questions (Collected from Express Computer mag.)*******************************************************************************1. what is the error in the following sequence of program. int i1; switch(i1) { printf("The value of I1 is :"); case 1: printf("%d",i1); break;

Interview Practice

2009-11-30T06:08:00.000-08:00

Interview Practice Practicing for the interview means practicing several behaviors- not just answering questions. You must dress well, watchyour body language and posture, practice your manners and eyecontact as well as practice answering questions correctly,smoothly,

book List

2009-11-30T06:06:00.000-08:00

Books: - Quantitative aps (R.S.Agarwal)- Verbal & Non Verbal Reasoning (R.S.Agarwal)- Puzzles to Puzzle u (Shakuntala devi)-More Puzzles to Puzzle u (Shakuntala devi) -Brain teasers (George j Summers)

Reasoning Questions

2009-11-30T06:03:00.000-08:00

Q1.For a motorist there are three ways going from City A to City C. By way of bridge the distance is 20 miles and toll is $0.75. A tunnel between the two cities is a distance of 10 miles and toll is $1.00 for the vehicle and driver and $0.10 for each passenger. A two-lane highway without toll goes east for 30 miles to city B and then 20 miles in a northwest direction to City C.1. Which is the

TECHNICAL Questions

2009-11-30T05:49:00.000-08:00

TECHNICAL : 1. Binary equivalent of 52 Ans. 110100 2. Hexadecimal equivalent of 3452 Ans. 72A 3. Explain Just In Time Concept ? Ans. Elimination of waste by purchasing manufacturing exactly when needed 4. A good way of unit testing s/w program is Ans. User test 5. A lowest level of security by most RDBMS is 6. OOT uses Ans. Encapsulated of detect methods 7.EDI useful in Ans. Electronic

DEPTH FIRST TRAVERSAL IN GRAPH

2009-08-25T08:20:00.000-07:00

//DEPTH FIRST TRAVERSAL IN GRAPH #include #include int graph[10][10]; int visited[10]; void intialize_graph(int no_v) { int i,j; for(i=1;i",start_v); for(i=1;i<=no_v;i++) { if(i!=start_v && visited[i]==0 && graph[start_v][i]==1) { DFS(i,no_v); } } } void main() { int no_v,no_e; int s_v,e_v,start_v; int i,j; clrscr(); printf("\n Enter the number of vertices in the graph:-"); scanf("%d",&no_v);

GRAPH IMPLEMENTATION

2009-08-25T08:19:00.000-07:00

//GRAPH IMPLEMENTATION #include #include int graph[10][10]; int visited[10]; void intialize_graph(int no_v) { int i,j; for(i=1;i { visited[i]=0; for(j=1;j<=no_v;j++) graph[i][j]=0; } } void print_graph(int no_v) { int i,j; printf("\n The Graph Matrix Representation: \n"); for(i=1;i<=no_v;i++) printf("\t%d",i); for(i=1;i<=no_v;i++) { printf("\n %d",i);

Quick Sort

2009-08-25T08:16:00.000-07:00

#include #include int i,j,n,pivot,a[20]; void quick(int a[],int left,int right); void swap(int a[],int i,int j); void main() { int i,n,a[20]; clrscr(); printf("\n\n Enter the Limit : "); scanf("%d",&n); printf("\n\n Enter the Elements \n"); for(i=0;i %d",a[i]); getch(); } void quick(int a[],int first,int last) { if(first=pivot&&j>first) j--; if(iswap(a,i,j); } swap(a,first,j); quick(a,first,j-1);

binary search tree implementation

2009-08-25T08:05:00.000-07:00

//binary search tree implementation.#include#include#includetypedef struct node{int data; struct bstree *left; struct bstree *right;}tree;tree *getnode();void displaymenu();tree *createbtree();tree *insertnode(tree *btree,tree *temp);tree *deletenode(int digit,tree *btree);tree *searchnode(tree *btree,int key);void view(tree *btree,int level);tree *find(tree *btree,int item,tree **par);tree *

queue using linked list

2009-08-25T07:59:00.000-07:00

//queue using linked list#include#include#includestruct list{int data; struct list *next;}*rear=NULL,*front=NULL,*temp;void display();void enqueue(){temp=(struct list *)malloc(sizeof(struct list));temp->next=NULL;printf("\nEnter the data:-");scanf("%d",&temp->data);if(front==NULL){ front=temp; rear=front; }else { rear->next=temp; rear=rear->next; }display();}void dequeue(){ if(front==NULL)

stack using linked list

2009-08-25T07:56:00.000-07:00

//stack usinglinked list#include#include#includestruct list{int data; struct list *next; }*top=NULL,*head=NULL,*temp;void display();void push(){ temp=(struct list *)malloc(sizeof(struct list)); temp->next=NULL; printf("\nEnter the data:-"); scanf("%d",&temp->data); if(head==NULL) { head=temp; top=head; } else { top->next=temp; top=top->next; } display();}void pop(){if(head==NULL) display();

CENTRE for AFFILIATION of INSTITUTIONS ANNA UNIVERSITY CHENNAI

2009-08-25T07:34:00.000-07:00

(1)A.C.T. College of Engineering & TechnologyNelvoy Village, Pukkathurai Post, Pukkathurai Uthiramerur High Road,Maduranthagam, Kancheepuram District – 603 107.(2)A.R. Engineering CollegeVadakuchipalayam,Kappiyampuliyur Post,Villupuram – 605 601.(3)A.M.S. College of EngineeringNizara Educational Campus,Muthapudupet, Avadi - I.A.F 600055.(4)Adhi College of Engineering & TechnologyNo. 174,

2009-08-25T07:27:00.000-07:00

UNIT – 3COMPARISON METHODS OF MEASUREMENTS w D.C & A.C potentiometers w D.C & A.C bridges w transformer ratio bridges w self-balancing bridges w Interference & screening w Multiple earth and earth loops w Electrostatic and electromagnetic interference w Grounding techniques. Potentiometers w DC Potentiometers. w AC Potentiometers. A Potentiometer is an instrument designed to measure an unknown

MEASUREMENT AND INSTRUMENTATION

2009-08-25T07:00:00.000-07:00

UNIT I Concepts of MeasurementMeasurementsMeasurement of a given quantity is essentially an act or result of comparison between the quantity (whose magnitude is unknown) and predetermined or predefined standards.Two quantities are compared the result is expressed in numerical values.Basic requirements for a meaningful measurementThe standard used for comparison purposes must be accurately defined

CircuitMaker 2000 With Service Pack and key

2009-08-06T11:28:00.000-07:00

Hello Friends,Do u want to download CircuitMaker 2000 With Service Pack and key Electronic Simulation software?then why r u waiting just click on the tilte and Download the " CircuitMaker 2000 With Service Pack and key" Electronic Simulation software for Free...........With Regards,5stararun......

Circuit Design

2009-08-06T11:26:00.000-07:00

Hello Friends,Do u want to download Circuit Design Electronic Simulation software?then why r u waiting just click on the tilte and Download the " Circuit Design" Electronic Simulation software for Free...........With Regards,5stararun......

Eagle V4.16

2009-08-06T11:24:00.000-07:00

Hello Friends,Do u want to download Eagle V4.16 Electronic Simulation software?then why r u waiting just click on the tilte and Download the " Eagle V4.16" Electronic Simulation software for Free...........With Regards,5stararun......

PROTEUS V7.1 for SP2

2009-08-06T11:22:00.000-07:00

Hello Friends,Do u want to download PROTPROTEUS V7.1 for SP2 Electronic Simulation software?then why r u waiting just click on the tilte and Download the " PROTEUS V7.1 for SP2" Electronic Simulation software for Free...........With Regards,5stararun......

PROTEUS V7.1

2009-08-06T11:18:00.000-07:00

Hello Friends,Do u want to download PROTEUS V7.1 Electronic Simulation software?then why r u waiting just click on the tilte and Download the " PROTEUS V7.1" Electronic Simulation software for Free...........With Regards,5stararun......

Practical Electronics Handbook

2009-08-06T11:10:00.000-07:00

Hello Friends,Do u want to download Practical Electronics Handbook ?then why r u waiting just click on the tilte and Download the " Practical Electronics Handbook " E-Book for Free...........Name : Practical Electronics Handbook Author : Ian Sinclair, John DuntonPublisher : Newnes; 6 edition (January 11, 2007)Language : EnglishWith Regards,5stararun......

Electronics Projects For Dummies

2009-08-06T11:08:00.000-07:00

Hello Friends,Do u want to learn Electronics Projects For Dummies ?Are u beginner to learn Electronics Projects For Dummies ?then why r u waiting just click on the tilte and Download the " Electronics Projects For Dummies " E-Book for Free...........Name : Electronics Projects For Dummies Author : Nancy C. Muir, Earl Boysen Publisher : For Dummies (July 31, 2006)Language

Electronics For Dummies

2009-08-06T11:07:00.000-07:00

Hello Friends,Do u want to learn Electronics For Dummies ?Are u beginner to learn Electronics For Dummies ?then why r u waiting just click on the tilte and Download the " Electronics For Dummies " E-Book for Free...........Name : Electronics For Dummies Author : Gordon McComb, Earl Boysen Publisher : For Dummies; 1 edition (February 4, 2005)Language : EnglishWith

The Electrical Engineering Handbook

2009-08-06T11:05:00.000-07:00

Hello Friends,Do u want to download The Electrical Engineering Handbook ?then why r u waiting just click on the tilte and Download the " The Electrical Engineering Handbook " E-Book for Free...........Name : The Electrical Engineering Handbook Author : Richard C. DorfPublisher : CRC; 3rd edition (January 13, 2006)Language : EnglishWith Regards,5stararun......

Power Electronics And Motor Drives

2009-08-06T11:03:00.000-07:00

Hello Friends,Do u want to learn Power Electronics And Motor Drives ?Are u beginner to learn Power Electronics And Motor Drives ?then why r u waiting just click on the tilte and Download the "Power Electronics And Motor Drives " E-Book for Free...........Name : Power Electronics And Motor Drives Author : Bimal K. BosePublisher : Academic Press (July 28, 2006)Language :

Electrical pocket book

2009-08-06T11:01:00.000-07:00

Hello Friends,Do u want to download Electrical pocket book ?then why r u waiting just click on the tilte and Download the " Electrical pocket book " E-Book for Free...........Name : electrical pocket book Author : Martin Heathcote, E A ReevesPublisher : Newnes; 23 edition (January 16, 2003)Language : EnglishWith Regards,5stararun......

Integrated Electronics

2009-08-06T10:59:00.000-07:00

Hello Friends,Do u want to learn Integrated Electronics ?Are u beginner to learn Integrated Electronics ?then why r u waiting just click on the tilte and Download the " Integrated Electronics " E-Book for Free...........Name : Integrated Electronics Author : Jacob Millman and Christos C. HalkiasPublisher : Mcgraw-Hill (Tx) (June 1972)Language : EnglishWith Regards,5stararun

Getting Started in Electronics

2009-08-06T10:54:00.000-07:00

Hello Friends,Do u want to learn Getting Started in Electronics ?Are u beginner to learn Getting Started in Electronics ?then why r u waiting just click on the tilte and Download the " Getting Started in Electronics " E-Book for Free...........Name : Getting Started in Electronics Author : Forrest M. MimsPublisher : Master Publishing, Inc. (February 2003)Language :

The Art of Electronics

2009-08-06T10:52:00.000-07:00

Hello Friends,Do u want to learn The Art of Electronics ?Are u beginner to learn The Art of Electronics ?then why r u waiting just click on the tilte and Download the " The Art of Electronics " E-Book for Free...........Name : The Art of Electronics Author : Paul HorowitzPublisher : Cambridge University Press; 2 edition (July 28, 1989)Language : EnglishWith Regards,

The PIC Microcontroller: The Personal Introductory Course

2009-08-06T10:50:00.000-07:00

Hello Friends,Do u want to learn The PIC Microcontroller: The Personal Introductory Course ?Are u beginner to learn The PIC Microcontroller: The Personal Introductory Course ?then why r u waiting just click on the tilte and Download the " The PIC Microcontroller: The Personal Introductory Course " E-Book for Free...........Name : The PIC Microcontroller; Your Personal Introductory

Electricity and Electronics for HVAC

2009-08-06T10:48:00.000-07:00

Hello Friends,Do u want to learn Electricity and Electronics for HVAC?Are u beginner to learn Electricity and Electronics for HVAC?then why r u waiting just click on the tilte and Download the " Electricity and Electronics for HVAC" E-Book for Free...........Name : Electricity and Electronics for HVACAuthor : Rex MillerPublisher : McGraw-Hill Professional; 1 edition (August 9, 2007)Language :

PIC in practice

2009-08-06T10:46:00.000-07:00

Hello Friends,Do u want to learn PIC in practice?Are u beginner to learn PIC in practice?then why r u waiting just click on the tilte and Download the "PIC in practice" E-Book for Free...........Name : PIC in practiceAuthor : David W. SmithPublisher : Newnes; 2 edition (January 27, 2006)Language : EnglishWith Regards,5stararun......

Microcontrollers in Practice

2009-08-06T10:40:00.000-07:00

Hello Friends,Do u want to learn Microcontrollers in Practice?Are u beginner to learn Microcontrollers in Practice?then why r u waiting just click on the tilte and Download the "Microcontrollers in Practice" E-Book for Free...........Name : Micro controllers in practiceAuthor : Loan Susnea and Marian MitescuPublisher : Springer; 1 edition (August 22, 2005)Language :

Practical Electronics for Inventors

2009-08-06T10:37:00.000-07:00

Hello Friends,Do u want to learn Practical Electronics for Inventors?Are u beginner to learn Practical Electronics for Inventors?then why r u waiting just click on the tilte and Download the " Practical Electronics for Inventors" E-Book for Free...........Name : Practical Electronics for InventorsAuthor : Paul ScherzPublisher : McGraw-Hill/TAB Electronics; 1 edition (April

Teach Yourself Electricity & Electronics

2009-08-06T10:34:00.000-07:00

Hello Friends,Do u want to learn how to Teach Yourself about Electricity & Electronics?Are u beginner to learn Electricity & Electronics?then why r u waiting just click on the tilte and Download the " Teach Yourself Electricity & Electronics" E-Book for Free...........With Regards,5stararun......

JINDAL GET Recruitment 2010-11

2009-08-06T09:38:00.000-07:00

Hello Friends,JINDAL STEEL & POWER Ltd, conducts GET Recruitment 2010-11They invite applications from young dynamic talented and result oriented engineers for the position of Graduate Engineers Trainees (GETs - 507) in the following branches.(1)CIVIL ENGINEERING(2)ELECTRICAL(3)INSTRUMENTATION & CONTROL(4)MECHANICAL(5)METALLURGICALClick on the title to apply online.Click below to download the GET

Doubly linked list --- Data structure Pgm

2009-07-28T07:34:00.000-07:00

//doubly linked list#include#includevoid create_list();void insert_first();void delete_first();struct node* get_node();void view();void readnode(struct node *newnode);struct node{int data;struct node *prev; struct node *next;}*head,*last;struct node* get_node() {struct node *newnode;int size=sizeof(struct node);newnode=(struct node*)malloc(size); return newnode; }void read_node(struct node *

singly linked list -- Data structure Pgm

2009-07-28T07:26:00.000-07:00

//singly linked list#include#includevoid create();void insert_first();void delete_first();void modify();struct node* getnode();void view();void readnode(struct node *newnode);struct node{ int data; struct node *link;};struct node *head,*temp;struct node* getnode(){ struct node *newnode;int size;size=sizeof(struct node);newnode=(struct node*)malloc(size); getch(); return (newnode);}void readnode(

Queue using array -- Data structure Pgm

2009-07-28T07:19:00.000-07:00

//Queue using array #include #include #define MAX 5int q[MAX],rear=-1,front=0; void Enqueue(); void Dequeue(); void Display(); void main() { int choice; clrscr(); printf("\n\n1.Enqueue\n2.Dequeue\n3.Display\n4.Exit"); while(1) { printf("\n\nEnter ur choice:-->"); scanf("%d",&choice); switch (choice) { case 1: Enqueue(); break; case 2: Dequeue(); break; case 3: Display();

Stack using array-- Data structure Pgm

2009-07-28T07:11:00.000-07:00

//Stack using array#include#include#define MAX 5void Push();void Pop();void Display();int stack[MAX],topstk=-1;void main(){ int choice;clrscr();while(1){ printf("\n\n1.Push\n2.Pop\n3.Display\n4.Exit"); printf("\n\nEnter ur choice:->");scanf("%d",&choice); switch (choice) { case 1: Push(); break; case 2: Pop(); break; case 3: Display(); break; case 4: exit(0); } }Display();

8085 Mnemonics

2009-07-28T07:10:00.000-07:00

Mnemonic OpSZAPC~sDescription Notes ---------+--+-----+--+--------------------------+-------------ACI n CE***** 7Add with Carry Immediate A=A+n+CY ADC r 8F***** 4Add with Carry A=A+r+CY(21X)ADC M 8E***** 7Add with Carry to Memory A=A+[HL]+CY ADD r 87***** 4Add A=A+r (20X)ADD M 86***** 7Add to Memory A=A+[HL] ADI n C6***** 7Add Immediate A=A+n ANA r A7****0 4AND Accumulator A=A&r (24X)ANA M A6****

8085 Instruction Set

2009-07-28T06:55:00.000-07:00

Instruction Set8085 instruction set consists of the following instructions: Data moving instructions.Arithmetic - add, subtract, increment and decrement. Logic - AND, OR, XOR and rotate. Control transfer - conditional, unconditional, call subroutine, return from subroutine and restarts. Input/Output instructions. Other - setting/clearing flag bits, enabling/disabling interrupts, stack operations,

8085 microprocessor architecture Introduction

2009-07-28T06:29:00.000-07:00

8085A, 8085AH microprocessor - DIP 40 packageManufacturers: AMD, Intel, NEC, Siemens, Toshiba.Program, data and stack memories occupy the same memory space. The total addressable memory size is 64 KB.Program memory:- program can be located anywhere in memory. Jump, branch and call instructions use 16-bit addresses, i.e. they can be used to jump/branch anywhere within 64 KB. All jump/branch

Brain wash manual

2009-07-23T09:21:00.000-07:00

Hello Friends,Do u want to learn how to Brain wash u r Relatives?Are u beginner to learn Brain wash u r Relatives?then why r u waiting just click on the tilte and Download the " Brain wash manual" E-Book for Free...........With Regards,5stararun......

ASP Programming for the Absolute Beginner

2009-07-23T09:11:00.000-07:00

Hello Friends,Do u want to learn ASP Programming?Are u beginner to learn ASP Programming?then why r u waiting just Click on the title and Download the "ASP Programming for the Absolute Beginner" E-Book for Free...........With Regards,5stararun......

optimal capacitors Replacement in radial distribution systems

2009-07-22T12:30:00.000-07:00

ABSTRACT:The main objective of the present work is to determine optimal location and size of capacitors in radial distribution systems to improve voltage profile and reduce the active power loss. For this, an effective load flow solution is essential.In this project, Vector Based Distribution Load Flow (VDLF) method is used. The VDLF is made powerful by using the ‘Sparsity Technique’. Optimal

Artificial Immune-Based For Voltage Stability Prediction In Power System

2009-07-22T12:21:00.000-07:00

Abstract:Voltage instability has recently become a challenging problem for many power system operators. These are blackouts.This paper presents the application ofArtificial Immune Systems (AIS) for online voltage stability evaluation that could be used as early warning system to the power system operator so that necessary action could be taken in order to avoid the occurrence of voltage collapse.

VOLTAGE STABILITY CONSTRAINED ATC COMPUTATIONS IN DEREGULATED POWER SYSTEM USING NOVEL TECHNIQUE

2009-07-22T12:19:00.000-07:00

ABSTRACT: The voltage stability constrained Available Transfer Capability (ATC) computations are obtained on IEEE 9-bus by running load flow until the voltage collapse point is achieved by enhancing the load in steps with constant power factor. These results are used to train the Neural Network by using Radial Basis Function Neural Network (RBFN) technique. The comparative results of convergence

TRANSFORMER PROTECTION Using SUDDEN PRESSURE RELAYS

2009-07-22T12:17:00.000-07:00

INTRODUCTION:Sudden pressure relays are a specialized protection device to detect transformer or reactor problems. The sudden pressure relay detects sudden changes in transformer oil or gas pressure due to internal faults. The sudden pressure relay has an inverse time characteristic. It operates faster for severe faults. The sudden pressure relay may be used in conjunction with other types of

Transformer Internal Faults Simulation

2009-07-22T12:15:00.000-07:00

Abstract:This paper presents a novel method of modeling internal faults in a power transformer. The method leads to a model which is compatible with commercial phasor-based software packages. Consequently; it enables calculation of fault currents in any branch of the network due to a winding fault of a power transformer. These currents can be used for evaluation of protective relays' performance

Transformer Fault Analysis Using Event Oscillography

2009-07-22T12:13:00.000-07:00

Abstract:Transformer differential protection operates on Kirchhoff’s well-known law that states, “The sum of currents entering and leaving a point is zero.” Although Kirchhoff’s law is well understood, the implementation of the law in transformer differential protection involves many practical considerations such as current transformer (CT) polarity, phase-angle correction, zero-sequence removal,

Static Voltage Stability Assessment Considering the Power System Contingencies using Continuation Power Flow Method

2009-07-22T12:10:00.000-07:00

Abstract:According to the increasing utilization in power system, the transmission lines and power plants often operate in stability boundary and system probably lose its stable condition by over loading or occurring disturbance. According to the reasons that are mentioned, the prediction and recognition of voltage instability in power system has particular importance and it makes the network

POWER TRANSFORMER INCIPIENT FAULTS MONITORING

2009-07-22T11:47:00.000-07:00

Abstract:Power transformers are important and expensive components in the electric power system. Theknowledge of the actual status of the transformer insulation behavior, load tap changer performance, temperature, and load condition is necessary in order to evaluate the service performance concerning reliability, availability and safety. Systems abnormalities, loading,switching and ambient

Online Measurements of Transformer Fault Gases

2009-07-22T11:46:00.000-07:00

The dissolved gas analysis technique (DGA) is well known to the transformer engineeringcommunity. Equally well known are some of the limitations of this method for analyzingtransformer fault gases (H2, O2, CO, CO2, CH4, C2H2, C2H4, C2H6). Further, it is widely known that knowledge of the concentrations of these gases dissolved in oil (especially the combustible gases) is critical to safe

MV NETWORK REMOTE MONITORING AND CONTROL

2009-07-22T11:42:00.000-07:00

INTRODUCTION:Distribution Automation is increasingly being introduced by Tamilnadu distribution utilities in order to be prepared for the forthcoming process of energy market opening in Tamilnadu.First, we have tried to define a term “Distribution Automation” that is to often related only to MV network remote monitoring and control. Distribution Automation comprises number of functions, as shown

Measurement based Voltage Stability Monitoring of Power system

2009-07-22T11:40:00.000-07:00

Abstract:Many papers discuss the voltage stability assessment of power system using power flow analysis methods. In this paper, a method for online monitoring of a power system based onmeasurements is proposed, which is aimed at detection of the voltage instability. Thereby an indicator is derived from the fundamental Kirchoff-Laws. Since in the transient process, at anytime point, the electric

Internal Fault Classification in Transformer Windings using Combination of Discrete Wavelet Transforms and Back-propagation Neural Networks

2009-07-22T11:38:00.000-07:00

Abstract: This paper presents an algorithm based on a combination of Discrete Wavelet Transforms and neural networks for detection and classification of internal faults in a twowinding three-phase transformer. Fault conditions of the transformer are simulated using ATP/EMTP in order to obtain current signals. The training process for the neural network and Fault diagnosis decision are implemented

Harmonics and voltage stability analysis in power systems including thyristor-controlled reactor

2009-07-22T11:36:00.000-07:00

Abstract:In this study, non-sinusoidal quantities and voltage stability, both known as power quality criteria, are examined together in detail. The widespread use of power electronics elements cause the existence of significant non-sinusoidal quantities in the system. These non-sinusoidal quantities can create serious harmonic distortions in transmission and distribution systems. In this paper,

FUZZY-NEURAL APPROACH FOR DISSOLVED GAS ANALYSIS OF POWER TRANSFORMER INCIPIENT FAULTS

2009-07-22T11:34:00.000-07:00

Abstract:Well-being of power transformer is crucial to the reliable operation of power system. Dissolved gas analysis is an important tool for online monitoring of transformer insulation. Although IEC codes were developed to diagnose transformer faults, there are situations of errors and misleading results occurring due to borderline and multiple faults. Methods were developed to solve this

ANN Based Power Transformer Fault Diagnosis

2009-07-22T11:29:00.000-07:00

Abstract:This paper presents as Artificial Neural Network (ANN) technique to recognize the incipient faults of power transformers. The technique presented in this paper improves the diagnosis accuracy of the conventional dissolved gas analysis (DGA) approaches. The ANN is trained by using Adaptive Back-propagation learning algorithm that converges much faster than the conventional

English Grammar - 'ARTICLE'

2009-07-22T11:01:00.000-07:00

lets we start from “ARTICLE” 1 a/an (the indefinite article): The form a is used before a word beginning with a consonant, or a vowel with a consonant sound.a man a hat a university a European a one-way streetThe form an is used before words beginning with a vowel (a, e, i, o, u) or words beginning with a mute h.an apple an island an unclean egg an onion an houror individual letters spoken with a

English Grammar

2009-07-22T10:58:00.000-07:00

Welcome to English Grammar for Basic learners. Many of these grammar lessons also have quizzes to check your understanding.grammar (noun): the structure and system of a language, or of languages in general, usually considered to consist of syntax and morphology.What is Grammar?English Grammar Terms DefinitionsThe 8 English Parts of SpeechThese are the words that you use to make a sentence. There

Hello world!

2009-07-22T10:53:00.000-07:00

Welcome to projcts4u,This is my first blog to educate our world.In this Blog u can learn and download the education materials as u required.This blog contains the following sections,1. Free E-book download,2. Engineering Project reports,3. Symposium papers,4. Study Materials,5. Job search,6. Engineering Subject Notes,and so on…………….keep watching my blog and Learn & Gain u r Knowledge…………….With