Mechanica 2011 - IIT Madras

April 9,10 (Mechanical)

Mechanica 2011, an annual technical festival of the Mechanical Engineering Department of IIT Madras, Chennai. At Mechanica, we present to you unparallel oppoirtunities to test your skills.

National Symposium on Rotor Dynamics - IIT Madras

December 19,20,21

Most machines have one or more rotating parts. Rotating machine elements thus form the backbone of industrial infrastructure and therefore play a pivotal role in the growth and development of the country. Rotor Dynamics is the key in design and maintenance of all such rotating machinery. This area has made tremendous strides in recent years.

ObCom 2011 - VIT

September 9

This International Conference is a major event to be conducted following the grand success of series of ObCom conferences during 2003, 2004 and 2006, which were audited by a good number of participants from Academia and Industry across the World. The past ObCom conferences received good contributions from academia, industry and research organizations. Our sponsors included governmental and non-governmental agencies like DRDO, ISTE, DIT, CSIR etc.

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Technical Papers and Symposium Details

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64 Bit Computing

Posted by tpapers On 3:46 pm 0 comments
Abstract:

The labels "16-bit," "32-bit" or "64-bit," when applied to a microprocessor, characterize the processor's data stream. Although you may have heard the term "64-bit code," this designates code that operates on 64-bit data.


In more specific terms, the labels "64-bit," 32-bit," etc. designate the number of bits that each of the processor's general-purpose registers (GPRs) can hold. So when someone uses the term "64-bit processor," what they mean is "a processor with GPRs that store 64-bit numbers." And in the same vein, a "64-bit instruction" is an instruction that operates on 64-bit numbers. 
Source: www.newtechpapers.com

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Digital Audio Water Marking

Posted by tpapers On 3:41 pm 0 comments
Abstract:

Digital watermarking is the process of embedding copyrighting information into digital media frame, such as text, image, audio and video. They are preferred to be imperceptible to the end user. The need for watermarking arises because of the inherent ease with which digital data can be copied and manipulated.
Digital watermarking find application in areas like copyrighting of information, authentication of data, tracing of illegal copies etc. Audio watermarking refers to applying watermarking on audio signals. The knowledge of the human auditory system i.e. psychoacoustics is of great importance in audio watermarking. This aspect of audio watermarking necessitates it to be treated as a separate topic.
Current watermarking techniques are mainly concerned with spread spectrum type of watermarking.

Source: www.newtechpapers.com

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Abrasive Jet Machining

Posted by tpapers On 3:37 pm 0 comments
 Abstract:
Abrasive water jet machine tools are suddenly being a hit in the market since they are quick to program and could make money on short runs. They are quick to set up, and offer quick turn-around on the machine. They complement existing tools  used for either primary or secondary operations and could make parts quickly out of virtually out of any material. One of the major advantage is that they donot heat the material. All sorts of intricate shapes are easy to make. They turns to be a money making machine.
So ultimately a machine shop without a water jet , is like a carpenter with out a hammer. Sure the carpenter can use the back of his crow bar to hammer in nails, but there is a better way. It is important to understand that abrasive jets are not the same thing as the water jet although they are nearly the same. Water Jet technology has been around since the early 1970s or so, and abrasive jets extended the concept about ten years later. Both technology use the principle of pressuring water to extremely high pressure, and allowing the water to escape through opening typically called the orifice or jewel. Water jets use the beam of water exiting the orifice to cut soft stuffs like candy bars, but are not effective for cutting harder materials. The inlet water is typically pressurized between 20000 and 60000 Pounds Per Square Inch (PSI). This is forced through a tiny wall in the jewel which is typically .007” to .015” diameter (0.18 to0.4 mm) . This creates a vary high velocity beam of water. Abrasive jets use the same beam of water to accelerate abrasive particles to speeds fast enough to cut through much faster material.
 Source: www.newtechpapers.com
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Magnetic levitation

Posted by tpapers On 3:31 pm 0 comments
Abstract:
 Magnetic levitation is the latest in transportation technology and has been the interest of many countries around the world. The idea has been around since 1904 when Robert Goddard, an American Rocket scientist, created a theory that trains could be lifted off the tracks by the use of electromagnetic rails. Many assumptions and ideas were brought about throughout the following years, but it was not until the 1970’s that Japan and Germany showed interest in it and began researching and designing.
The motion of the Maglev train is based purely on magnetism and magnetic fields. This magnetic field is produced by using high-powered electromagnets. By using magnetic fields, the Maglev train can be levitated above its track, or guideway, and propelled forward. Wheels, contact with the track, and moving parts are eliminated on the Maglev train, allowing the Maglev train to essentially move on air without friction.

Source: www.newtechpapers.com 

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Plastic Explosion

Posted by tpapers On 3:20 pm 0 comments

Synthetic polymers are often referred to as "plastics", such as the well-known polyethylene and nylon. However, most of them can be classified in at least three main categories: thermoplastics, thermosets and elastomers.


Man-made polymers are used in a bewildering array of applications: food packaging, films, fibers, tubing, pipes, etc. The personal care industry also uses polymers to aid in texture of products, binding, and moisture retention (e.g. in hair gel and conditioners). 

Source: www.newtechpapers.com 

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Flywheel Energy storage

Posted by tpapers On 2:49 pm 1 comments
Abstract:


Flywheel energy storage systems store kinetic energy (i.e. energy produced by motion) by constantly spinning a compact rotor in a low-friction environment. When short term back-up power is required (i.e. when utility power fluctuates or is lost), the rotor's inertia allows it to continue spinning and the resulting kinetic energy is converted to electricity.

Active Power's CleanSource Flywheel Technology, as shown Below, integrates the function of a motor, flywheel rotor and generator into a single intergrated system, The motor, which uses electric current from the utility grid to provide energy to rotate the flywheel, spins constantlyto maintain a ready source kinetic energy.
Source:  www.newtechpapers.com
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