Red Tacton Technology Abstract On Human Area Networks

Red Tacton Technology Abstract On Human Area Networks

Ever thought of becoming a network provider? Now you can be. The latest technology which is still under development is RedTacton. RedTacton is a Human Area Networking technology which uses the human body as a safe, high speed network transmission path. It is different from wireless and infrared technology. A minute electric field is emitted on human body and this electric field is used for networking.

Each device you wish to communicate with; must be equipped with a RedTacton transceiver. And once the RedTacton transceiver which you wear is programmed to detect the other device’s transceiver; connection is established. RedTacton uses point to point network, know as Piconet. Thus information can be exchanged between two transceivers without the need of a server to process information. So imagine holding your iPod in one hand and your other hand on your laptop and you can transfer songs to your iPod. The data transfer rate is upto 10 Mbps.

RedTacton technology can be used for the protection of weapons. There is a huge black market of stolen weapons. We can reduce this black marketing using the RedTacton technology. We can manufacture weapons with a built in transceiver and have another transceiver which is programmed to fire the weapon. So without this transceiver, the weapon cannot be used. This technology has many more application in the field of Medical Sciences and some Consumer Applications as well.

RedTacton faces competition with technologies like IrDA, Bluetooth, Radio waves, Zigbee etc. Bluetooth is also a short range transmission technology but is unsecure. The connection can be tapped and data can be misused. Apart from so many competitors, this technology also faces other obstacles. Since the technology is new, it is expensive in terms of cost and time required to develop it. Also it will require time for people to adopt this technology and until many people do not use this technology, it won’t be successful. Each technology has its positive and negative aspects and with time it undergoes changes. So with time, we will surely discover whether RedTacton will prove to be a boon for networking or not.

Idea submitted by- Ashish khairker 
                              mechanical
    OP Jindal Institute Of Technology

Ultra Strong Body Armor From Cement

Latest Invention News Articles: 

Soon soldiers could be much less vulnerable to all kinds of bullets thanks to a body armor made from cement. The latest invention of the engineers from the University of Leeds will be made of very strong cement mixed with carbon fiber materials. Thus scientists will be able to create a material so strong that it will be able to resist nearly all types of bullets.

Currently engineers at the School of Civil Engineering at the University are working on the first stage of cement vest project development. The team of engineers is led by Dr Philip Purnell, who mentioned that their latest invention will not only provide a higher level of protection, but will also be cost-effective, reports Science Daily.

It is worth mentioning that the hi-spec body armor, available today, features alumina plates, a raw material used to create aluminum. To make the plates very hard, they are heated at temperatures of up to 1600 degrees Celsius over a two-week period. This process is called "sintering".

The current latest invention is one of the many ideas that engineers at University of Leeds attempt to implement. Among other ideas, there are: cement based pump-less fridges and enhanced bone replacements. To gather more ideas about other ways of using the cement, the lead researcher carries out an active search of engineers, scientists, designers, sculptors and artists, with fresh thoughts. 

This Article is Submitted By-Kalyani Vishwanathan
                                               Branch-Civil / 2nd sem 
                                 OP Jindal Institute Of Technology

 

RESTORE AND IMPROVE URBAN INFRASTRUCTURE

Novel construction materials may help address some of challenges of urban infrastructure development. But dramatic progress may be possible only by developing entirely new construction methods. Most of the basic methods of manual construction have been around for centuries — even millennia. Advances in computer science and robotics should make more automation possible in construction, for instance, greatly speeding up construction times and lowering costs. Electricity networks linking large central-station and decentralized power sources will also benefit from greater embedded computation.

All of these endeavors must be undertaken with clear vision for the aesthetic values that go beyond mere function and contribute to the joy of living. Major bridges, for instance, have long been regarded almost as much works of art as aids to transport. Bridges, buildings, and even freeways contribute to the aesthetical appeal of a city, and care in their design can contribute to a more enjoyable urban environment.

In previous decades, much of the rest of urban infrastructure has been erected without as much concern for its impact on a city’s appearance and cultural milieu. Recently, though, awareness of the aesthetics of engineering has begun to influence infrastructure design more generally. Integrating infrastructure needs with the desire for urban green spaces is one example.

Projects to deal with urban stormwater runoff have demonstrated opportunities to incorporate aesthetically pleasing projects. Using landscape design to help manage the flow of runoff water, sometimes referred to as “green infrastructure,” can add to a city’s appeal in addition to helping remove pollution. The vast paved area of a city needs to be rethought, perhaps by designing pavements that reduce overhead temperatures and that are permeable to allow rainwater to reach the ground table beneath. Proper engineering approaches can achieve multiple goals, such as better storm drainage and cleaner water, while also enhancing the appearance of the landscape, improving the habitat for wildlife, and offering recreational spaces for people.

Rebuilding and enhancing urban infrastructure faces problems beyond the search for engineering solutions. Various policies and political barriers must be addressed and overcome. And the practice of letting infrastructure wear out before replacing it, rather than incorporating technological improvements during its lifetime, only exacerbates the problems.

And so, a major grand challenge for infrastructure engineering will be not only to devise new approaches and methods, but to communicate their value and worthiness to society at large.

Submitted By-

GOURAV SHARMA

CIVIL 6^th  Sem, O.P. JINDAL  INSTITUTE  OF  TECHNOLOGY, RAIGARH ( C.G.)

Email:gouravsharmaopjit@gmail.com

An Engine that Harnesses Sound Waves

This article is meant for recent development in the field of energy.Today more no of research are going in this field.So let's have a overlook on this Article......

An Engine that Harnesses Sound Waves

The device uses thermoacoustics for greater efficiency.

A startup company has developed a new type of engine that could generate electricity with the efficiency of a fuel cell, but which costs only about as much as an internal combustion engine.
Etalim, based in Vancouver, Canada, says its engine, roughly the size of a basketball, could improve the economics of electricity production for the cogeneration of power and heat in homes, and as a way to harness the heat produced at concentrating solar collectors. The company has created a prototype, but has yet to achieve the kind of efficiencies—in excess of 40 percent—that its computer models indicate are within reach.
The device shares some principles of a Stirling engine, in which an external heat source is used to expand a fixed amount of working gas (usually helium), which then contracts when it is pushed into a cooler space. This expansion-contraction cycle repeats itself, turning heat into mechanical work by driving a piston.
Etalim's CEO Ron Klopfer says a fundamental problem with Stirling engines is that they need to run at very high temperatures and pressures to be efficient, making it difficult to keep the gas sealed inside the cylinder that encases the piston. "At these temperatures, you can't use traditional methods of sealing," he says. "You can't use rubber, lubricants. It must be dry metal on metal, and those are very expensive, high-precision parts that lead to high costs."

Etalim's founder and chief scientist, Thomas Steiner, saw an opportunity to eliminate all the rubbing parts and seals that are prone to wear and leakage by using a design based on thermoacoustics—which employs heat to control the intensity of sound waves within a sealed cavity.
Encased within the core of Etalim's engine is a plate of metal that replaces the function of a piston in a conventional Stirling engine. When pressurized helium on the top side of the metal plate is heated, sound waves traveling through the gas are amplified, causing the plate to vibrate, and a metal diaphragm below (separated by a cooler layer of helium) to push down on a shaft. All mechanical friction is eliminated. The shaft is attached to an alternator that produces electricity.
The vibration of the plate only moves the shaft two-tenths of a millimeter per cycle, so not much helium is being moved with each cycle. But the engine achieves a rapid 500 cycles per second. "If you go to high-frequency, you can get more power out of it," says Greg Swift, a thermoacoustics expert at Los Alamos National Laboratories who saw an early version of Etalim's engine. "Steiner has really done a good job of taking a different [design] direction and not making any mistakes."
The company has ambitious goals. A first prototype, completed last year, demonstrated that the concept works, but relatively low heat was used, so its efficiency was only 10 percent. A second prototype that aims for 20 to 30 percent efficiency at 500 °C is expected this spring.
A commercial product with 40 percent efficiency running at 700 °C is targeted for 2012. It will initially be sold as a cheaper and longer-lasting competitor to fuel cells used for residential cogeneration. The company believes it can manufacture the engine for less than $1 per watt, and has a long-term target of 15 cents per watt, which would make it less expensive than a comparable internal combustion engine.
"Everything to get us to 40 percent efficiency is right in line with what we've seen from our prototype so far," says Klopfer, adding that 50 percent is the longer-term target. "To get from 40 percent to 50 percent, we need to raise the temperature to 1,000 °C, and that requires some use of ceramics."
Mike Hayden, a professor of physics at Simon Fraser University, says Etalim's design is promising, but a lot of engineering works lies ahead to prove that the device can handle high temperatures and achieve the kind of efficiencies that would make it stand out. "But there's no doubt these guys have something interesting," he says.

The above fig is of Sound barrier: This prototype engine uses thermacoustics to turn heat into electricity.
Credit: Etalim.