RSS

VARIOUS DATE UPDATES OF ENTRANCE EXAMS like CAT,MAT,XAT,GATE,IIFT .



UPDATES FOR CAT 10:


Indian Institute of Management (IIM) will be conducting the CAT in October - November 2010 and CAT Advertisement will appear in leading newspapers on Last Sunday of August 2010.
CAT 2010 will be held in a 20 day window, between October 27 and November 23, 2010. The application fee for taking CAT 2010 will remain the same as last year. There is no change in the fee; it will be Rs. 1400 for the General candidates and Rs. 700 for the SC/ST/OBC candidates. The official announcement of CAT 2010 will be made on the last Sunday of August 2010, i.e. August 29, 2010.

For details click here.

GATE UPDATES:
For gate information,eligibility criteria, date of exams n other infos chk out:

1. click here.
2. click here.

MAT UPDATES:-

Various previous yr. question n answers of MAT click here.

CAT 2010 Take the Quant Challenge:-

Special Series on CAT 2010: click here.

IIFT and JMET notifications out :-

IIFT Notification: click here
JMET Notification for IIT MBA programs: click here.


OTHER MBA ENTRANCE PROGRAMME DATES FOR 10 LIKE MAT,IIFT,KMAT,IBSAT, etc: click here.

FOR VARIOUS ENTRANCE EXAMS FOR BANK,HOTEL MANAGEMENT,UPSC, etc: click here.



  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

Mobile os & its security



Topic:-

Mobile os & its security:-

For ppt file- click here.

For pdf file- 1.click here. 2. click here.

To know about Symbian OS and its associated user interfaces click here.

Android is an operating system for mobile devices such as cellular phones.
To know more click here.

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

Natural Language Processing & its application- Seminar topic for IT & CS



TOPICS:-

Natural Language Processing & its application

To download the ppt file-
1. click here.
2. click here.

To download the pdf file click here.

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

PLANNING TO STUDY IN THE U.K., U.S., or CANADA? - TOEFL SCHOLAR PROGRAMME.



The TOEFL test can help you get to the destination of your choice.

- New scholarship programme recognises outstanding students in india.
- Receive awards up to US$10,000!

Special opportunity from ETS, the maker of the TOEFL test :

For TOEFL test takers , ETS has developed a scholarship programme to recognise and assist outstanding students in india who are planning to attend an institution in the U.K., U.S. or Canada.


Scholarships up to US$10,000 :

- To quality you must :
- Be an undergraduate or graduate student living in india will begin postgraduate study in the U.K., U.S. or Canada in 2011.
- Have an overall grade percentage of 60 or above.
- Demonstrate English proficiency with your TOEFL scores.
- Other requirements :
- Proof of identity.
- Academic and examination transcripts.
- Letters of recommendation.
- Verbal and written responses to questions and topics.
- Scholarship winners must provide an official letter of acceptance from an institution in the U.K., U.S. or Canada.

Get more information about the TOEFL Scholar Programme :

E-mail questions about the scholarship programme or application process to indiascholarships@ets.org or call us at +91-9930-243-795 ( 9 a.m.- 6 p.m. IST).

For more information visit : www.ets.org/toefl/indiaschoiarships.

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

Study in UK, USA, CANADA, AUSTRALIA, NEW ZEALAND, SINGAPORE, IRELAND, FRANCE, DUBAI SWITZERLAND, MALAYSIA ???



STUDY ABROAD BY EDWISE- INDIA'S LEADING OVERSEAS EDUCATION CONSULTANTS





Study in UK, USA, CANADA, AUSTRALIA, NEW ZEALAND, SINGAPORE, IRELAND, FRANCE, DUBAI SWITZERLAND, MALAYSIA ???

The solution is EDWISE - india's leading overseas education consultants.
Visit: www. edwiseinternational.com or sms ED F to 54242.

Why EDWISE?
- One stop solution to all study abroad needs.
- Representing 400 plus universities in 11 countries.
- Providing free services for 19 years.
- Professional & Experianced trained counselors.
- 20 branches across India.

Free. . . . . . . Expert Guidance For Selection of Course And University:
- Hosting direct interviews from university representatives.
- Comprehensive and unbiased information on various study options.
- 90% of our students are references from previous satisfied students.
- We make no false promises.

Admission Formalities:
- Special attention to your application.
- Highlighting areas essential for well presented error free application.
- Exhaustive information brochures, library cd's and application forms, etc.
- Coaching on IELTS, TOFEL, GMAT, GRE, AND SAT.

Visa Formalities:
- Well stocked with visa application forms & visa formality updates.
- Comprehensive guidance regarding completion of visa application forms.
- verification & advice by specially trained accountants with regards to preparation of financial documents in the manner recommended by the high commision.

Bank Loan Assistance:
- Tie ups with well known banks.
- Application fee waiver.
- Complete guidance on Education loan & assistance provided.
- Quick and easy process

Other Services:
- Academic pathway planning( Career + Aptitude & Testing)
- IELTS Registration centre for British council.
- Pre departure briefing.
- Forex or Travel currency Cards.
- Discount on tickets and extra luggage.
- Student Travel and medical insurance.
- Global SIM cards & Accomodation assistance.


CONTACTS:

HEAD OFFICE METRO- MUMBAI
Jer Mahal, gr. Flr., Dhobi Talao,
Opp. metro Cinema,
Mumbai-400 002.
Tel: 4081 3333/ 2200 3338
Fax: + 91-22-22003269
ho@edwiseinternational.com

Others:-

MUMBAI MARINE LINES: 2, Sethna Bldg., 1st Flr., Marine Lines, Mumbai- 400 002. Tel.: (022) 4081 3456/ 22003339.

MUMBAI SANTACRUZ : 512, Dheeraj heritage, S.V. Road, Santacruz (W), Mumbai- 400 054. Tel.: (022) 4276 4444/26603075.

MUMBAI MALAD : 304, Linkway Estate, Malad Link Road Near Inorbit, Malad (W), Mumbai - 400 064. Tel.: (022) 42176444.

KOLKATA: South Block, 206, 2nd Floor, Ideal Plaza, Kolkata-700020, Tel: (033) 40122333/9830543637.

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

STUDY IN FRANCE





STUDY IN FRANCE:-

From Engineering, management to Arts, Fashion, Law etc. Courses taught in English across disciplines. Knowing French highly recommended but not mandatory Scholarships available for meritorious candidates.

Planning to study abroad is a process involving a sequence of steps that must begin well in advance of your anticipated arrival in France.

CAMPUSFRANCE is an organization set up by the Frence Ministry of National Education and Research to promote French Embassy in India and with the network of Alliances Francaise who serve as information centers for those wishing to study in France. Campus France help desks are located in 9 major cities in India, namely, Ahmedabad, bangalore, Chennai, Chandigarh, new Delhi, Hyderabad, kolkata, mumbai and Pune.

CampusFrance helps you gather information, compare educational institutions and their programs, plan your budget, apply for admission and a visa, prepare for departure, and accomplish essential tasks upon arrival.

GET ONLINE GUIDANCE AT WWW.CAMPUSFRANCE.ORG

Visited 100,000 times each month, the CampusFrance website provides easy access to the academic and practical information that you need to plan a period of study in France: campusfrance.org introduces you to the French educational system and helps you campare educational programs, understand academic disciplines and fields of study, and search for programs that match your educational background and goals.

campusFrance's online catalog of French higher education includs more than 35,000 programs-licences, masters, doctorates-offered by some 6,000 institutions. The home page provides basic information on the Frence educational system (institutional types, degrees offered, fields of study).
Users are prompted to select a degree level and to provide keywords corresponding to their fields of interest and geographic preferences. A powerful search engine then generates a report of programs that match the user's criteria and provides both a summary of the institutions offering the programs and links to their websites.
Shortcuts are provided for common searches, such as Erasmus Mundus master's programs, programs taught in english, french as a foreign language, MBA programs, profiles of fields of study.
the site also offers practical advice on applying for admission, getting a visa, obtaining financial aid, locating housing, and enjoying life in France.
All this information is conveyed in more than 20 countries, in your own language.


For complete guidance & counseling contact :

The CanpusFrance Desk
The Alliance Francaise du Bengale,
Khaleel Munzil, 217 AJC Bose Road, Kolkata- 17.
Tel : 033 2281 5198/5538
Email: kolkata@india-campusfrance.org

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

Growth of Technology for a wireless world

Growth of Technology for a wireless world:



Purdue University reseachers have developed a miniature device that converts ultrafast laser pulse into radio-frequency signal. The new device will make communication devices in homes, business and cars completely wireless.

The advance could enable all communications, from high-definition television broadcasts to secure computer connections, to be tarnsmitted from a single base station. This base station wold be sort of a computer itself. The centraln computer would take charge of all the information processing, acting as a single point of contact that interacts with the external world in receiving and sending data.

The pulsing nature of the signals produced by the chip-based spectral shaper reduces the interference that normally plagues radio frequency communications.

If you want to know more about the movement towards the wireless world visit here.

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

SEND DATA THROUGH YOUR BODY- an interesting news

Send data through your body:



If yourn internet connection is currently unavailable, you may try sending data through your body.This has already been tested by researchers at Korea University,Seoul. they trasmitted data through a person's arm at the rate of 10 megabits per second by placing two electrodes 30 cm(12 inches) apart on his skin.

A network trnsmitting through the skin would cut energy needs bu roughly 90 per cent, claim the researchers. The most interesting application would be in the medical field, where it could help measure bllod sugar and electrical activity of the heart.

For further details click here.

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

ISDN- Integrated Service Digital Network

What is ISDN?



ISDN stands for Integrated Service Digital Network, and as the name suggests it allows digital communication. This is favourable as digital technology is a lot faster, and more accurate than the old analogue lines as they no longer require the process of modulation and demodulation. ISDN relies on already existing copper cable systems, causing it’s integration into our existing communications system to be smoother and less disruptive.

According to ITU-T(formerly CCITT) "an ISDN is a network, in general evolving from a telephony IDN, that provides end-to-end digital connectivity to support a wide range of services, including voice and non-voice services, to which users have addressed by a limited set of standard multi-purpose user-network interfaces." The key point of this definition is the ability to support voice services adequately, this has not been achieved using any other concept.

ISDN has four major aspects; telephone network; integrated services; digital; network. These will be explored in a little more detail later.


  • What is Broadband ISDN?

Narrowband ISDN has been designed to operate over the current communications infrastructure, which is heavily dependent on the copper cable. B-ISDN however, relies mainly on the evolution of fibre optics. According to CCITT B-ISDN is best described as ‘a service requiring transmission channels capable of supporting rates greater than the primary rate.’ Behind this statement lies the plan for a network and services that will have far more impact on the world we know today, than ISDN ever would.
















  • ISDN is Telephone Network:

When ISDN is referred to as a network it is to be considered a telephone network, not a computer network. Broadband ISDN allows its users to communicate over high speed, high quality digital channels. The media is supports include Telex, fax, voice telephone, video telephone, audio, high definition TV and computer networking.

  • ISDN is Integrated Services:

In the past video, audio, voice and data services needed different types of communication channels. One of the main advantages of ISDN is the ability to integrate these features over the same network and cable plant. Not only is this possible using ISDN technology but the quality of the transmission is better also. In the past four networks were needed and video was distributed on coaxial lines, audio over balanced lines, voice used copper cable pairs and data services required coaxial or twisted pair cables. Using one network allows reductions in installation costs, as well as easier installation. Other features available include demand networking, automatic bandwidth and on the fly connectivity. Advances in the services available are due to ISDN being digital.

  • ISDN is Digital:

Data applications, in particular, seemed to have problems with the old analogue services. This is due to the fact that computers are digital devices and the transmission of data needs to be modified form binary to analogy tones, then changed back to binary when it is received. This process requires a modem, which handles the MODulation and DEModulation of the data. Whilst the data is in transit it is susceptible to outside influences like noise, line spikes and echoes. Bandwidth is also limited, with the speed of modems being close to the maximum possible.

  • ISDN is a Network:

Networks require high speed connectivity if they are going to be useful. ISDN is an excellent vehicle for connecting LANs, because it scales in increments of 64 kilobits per second (kbps). Computers are digital devices, as is ISDN, meaning that no translation of information is required, improving quality and speed. Due to the characteristics of ISDN it can be used, with the same level of performance, across a room or halfway across the continent. This has unlimited benefits.



  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

5ESS SWITCH- ELECTRONIC SWITCHING SYSTEM

5ESS Switch :-


The class 5 electronic switching system sold by Lucent Technologies. The 5ESS Switch is the digital central office circuit switching system many communication service providers use.

5ESS has three main kinds of Module: AM is Administrative Module, which contains the central computers. CM is Communications Module, which is the central time-divided switch of the system. SM is Switching Module which in most exchanges is the majority of equipment. SM performs multiplexing, analog/digital coding, and other work to interface with the outside world. Each has a controller, a small computer whose CPUs and memories, like most common equipment of the exchange, are duplicated for redundancy.

5ESS runs on a Time-Space-Time (TST) topology. The Time-Slot-Interchangers (TSI) in the Switching Modules (SM) assign each phone call to a time slot for routing through the CM.

Distributed system lessens the load on the Central Administrative Module (AM) or main computer. AM is a dual processor mini main frame computer of the AT&T 3B series, running UNIX-RTR. AM contains the hard drives and tape drives used to load and backup the central and peripheral processor software and translations. Disk drives were originally several 300 megabyte SMD multiplatter units in a separate frame. Now they consist of several redundant multi-gigabyte SCSI drives that each reside on a card. Tape drives were originally half inch open reel at 6250 bits per inch, which were replaced in the early 1990s with 4 mm Digital Audio Tape cassettes.

Power for all circuitry is distributed as -48VDC and converted to logic or telephone voltages as needed by DC to DC converters on each shelf of circuit packs.


Switching Module (SM):-

Each SM handles several hundred to few thousand telephone lines or several hundred trunks or mixture thereof. Each has its own processors, which perform most call handling processes, using their own memory boards. Originally the peripheral processors were to be Intel 8086, but those proved inadequate and the system was introduced with Motorola 68000 series processors. The name of the cabinet that houses this equipment was changed at the same time from Interface Module to Switching Module.
T-carrier spans are terminated, one or two per card, in Digital Line Trunk Units (DLTU) which concentrate their DS0 channels into the TSI. Larger DS3 signals can also have their DS0 signals switched in Digital Network Unit SONET (DNUS) units, without demultiplexing them intoDS1. SMs have Dual Link Interface (DLI) cards to connect them by multimode optical fibers to the Communications Modules for time divided switching to other SMs. Calls among the lines and trunks of a particular SM needn't go through CM, and an SM located remotely can act as distributed switching, administered from the central AM. Each SM has two Module Controller/Time Slot Interchange (MCTSI) circuits for redundancy.

In contrast to Nortel's DMS-100 which uses individual line cards with a codec, most lines are on two stage analog space division concentrators or Line Units, which connect as many as 512 lines as needed, to the 8 Channel cards that each contain 8 codecs, and to high level service circuits for ringing and testing. Both stages of concentration are included on the same grid board. Each grid board serves 32 lines, 16 A links and 32 B links. Limited availability saves money with incompletely filled matrixes. The Line Unit can have up to 16 grid boards connecting to the channel boards by shared B links, but in offices with heavier traffic for lines a lesser number of grid boards are equipped.

Since Line Units handle the high voltages and currents of analog lines, their cards fail at higher rates than ones that handle only computer voltages. Some lines, especially ISDN or PBX ones, are served by individual line cards in an Integrated Subscriber Line Unit.

The development effort for 5ESS reached 5000 employees, producing 100 million lines of code, with 100 million lines of header and makefiles. Evolution of the system took place over 20 years, while three releases were often being developed simultaneously (each taking about 3 years to develop).
A 5ESS-2000 version, introduced in the 1990s, increased the capacity of the SM, with more peripheral modules and more optical links per SM to the CM (see below).



Administrative Module (AM):-


The Administrative Module (AM) of the 5ESS Switch is built on the 3B21D platform and is used to load software to the many microprocessors throughout the switch and to provide high speed control functions required by the AM. It provides messaging and interface to control terminals. The AM of a 5ESS consists of the 3B20x or 3B21D processor unit, including I/O, disks, and tape drive units. Once the 3B21D has loaded the software into the 5ESS and the switch is activated, packet switching takes place without further action by the 3B21D. Because the processor mirrors its functions, a failure of one side of the processor will not result in a loss of switching.



Communication Module (CM):-


The oddly named Communications Modules form the central time switch of the exchange. CMs perform time divided switching and are provided in pairs; each module (cabinet) belonging to Office Network and Timing Complex (ONTC) 0 or 1, roughly corresponding to the switch planes of other designs. Each SM has four optical fiber links, two connecting to a CM belonging to ONTC 0 and two to ONTC 1. Each optical link consists of two multimode optical fibers with screw-on connectors to plug into transceivers mounted in metal cans plugged into backplane wiring at each end. CMs receive time multiplexed signals on the receive fiber, and send them to the appropriate destination SM on the send fiber.




Very Compact Digital Exchange:-


The VCDX (Very Compact Digital eXchange) was marketed to small telephone companies and was used in some instances as a large PBX. It consisted of a single Switching Module, had no Communications Module, and used a Sun Microsystems workstation as its Administrative Module.



Signaling:-



The 5ESS has two different signaling architectures Common Network Interface (CNI) Ring and Packet Switch Unit (PSU).


Operations, Administration, Maintenance, and Provisioning:-


The system is administered through an assortment of teletypewriter "Channels" (also called the system console) such as the TEST channel and Maintenance channel. Typically provisioning is done using a one of two methods - a command line interface (CLI) called RCV:APPTEXT, and through the menu-driven RCV:MENU,APPRC program. RCV stands for Recent Change/Verification, and can be accessed throughSwitching Control Center System. Most service orders, however, are administered through Recent Change Memory Administration Center(RCMAC).

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

CAMS AND CAMSHAFT



A cam is a rotating or sliding piece in a mechanical linkage used especially in transforming rotary motion into linear motion or vice versa.It is often a part of a rotating wheel (e.g. an eccentric wheel) or shaft (e.g. a cylinder with an irregular shape) that strikes a lever at one or more points on its circular path. The cam can be a simple tooth, as is used to deliver pulses of power to a steam hammer, for example, or an eccentric disc or other shape that produces a smooth reciprocating (back and forth) motion in the follower, which is a lever making contact with the cam.
A camshaft is a shaft to which a cam is fastened or of which a cam forms an integral part.

For download the file click here.

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS