Students create racing motorcycle

Washington, May 18 (ANI): Researchers at the Universidad Carlos III de Madrid (UC3M) have presented the Moto Student Project, in which a group of University students and engineers have worked to design and develop a racing motorcycle prototype that will complete against university teams from all over the world.

The Moto Student competition is a challenge for university teams from Spain, Europe and the rest of the world to design and develop a racing motorcycle prototype with a small cylinder (125 cubic centimeters and 2 strokes). This test is a challenge for the students because within a period of three semesters they must test and demonstrate their creation and innovation capacity by completing a project under the same conditions required by industry, that is, working as a team, within a limited budget, with some minimum technical requirements and a closed calendar, as well as being touch with the most up to date technologies, sponsors and companies in the sector.

The UC3M team recently presented a prototype in its initial construction phase.

Technical Director, José G. Pérez Alonso, said: “This development phase to get it underway is going to be the most complicated but also the most rewarding because we have lots of ideas to test out on the motorcycle before presenting it for competition.”

The final competition, with its corresponding evaluation, will be held at the Ciudad del Motor (Motor City) in Aragón during the first part of next October, coinciding with the Campeonato de España de Velocidad (Spanish Speed Championship). The prize, which is for the top industrial project, is 6,000 Euros and a “stage” for the team members in industry companies or in the companies taking part in the competition.

Just as in any engineering project, the first step for the design of the prototype was observing actual models to understand the form and functioning of a racing motorcycle.

Once the concepts were clear and the line of work well-defined, brainstorming sessions began and the initial sketches were made. The second step consisted in creating a virtual prototype model with which to work out possible faults in its prior construction. For that purpose, material supplied by the competition organization was modeled by the students through 3D software design. After that, once all of the parts were assembled, they began the first dynamic virtual simulations and when they were able to have this virtual model totally ready, the actual prototype construction began. Soon its first sessions on the track will take place at the Circuito (Circuit) of Cartagena, where the team will evaluate the invention through a data collection system of its design.

The objective of the teams taking part in this competition, sponsored by the Moto Engineering Foundation, is that the manufacturing cost for the 500 motorcycle units designed totals 4,500 Euros, although the value of the prototype is higher. This must include the engine, rims and tires, the brake system for wheels, the front fender, and the back muffler. The rest of the components are optional, except for the chassis, and the swing arm which they design “The main challenge has been to start from scratch, choosing an innovative design, without the constrictions of a traditional approach, with the goal of being able to unify the technical solutions which we think can offer us a competitive edge, and which on the other hand, allow us to learn the most possible”, stated Pérez. And as result, in a nutshell, you have a different and original motorcycle.

This industrial engineer leads a very capable group of students with a great deal of interest in making this adventure work. Yolanda Colás Escandón is one of them, and she is very excited to be able to wrap up her studies with this kind of work. “It has been a great challenge, and I have learned many things, not only from the motorcycling point of view, but also from the engineering perspective”, said Colás, who is one of the coordinators of the project, which is under the direction of the Full Professor Juan Carlos Garcia Para, in charge of the MAQLAB project. “This project is now consolidated and it is producing very interesting concrete results. In addition, we are nearing completion of a spin-off at the UC3M Science Park (Leganes Tecnológico) to launch this development, which will be called LGNTech Design”. (ANI)

Now, 3D fantasy game to help treat depressed teens

Wellington, May 7 (ANI): A 3D fantasy game, called Sparx, could soon act as a counsellor to gloomy teens.

Developed by New Zealand researchers, the game lets players choose an avatar, or character, which can roam around a virtual world, interact with non-playing characters and complete challenges.

And the challenges have been carefully based on cognitive behaviour therapies, a common technique used in face-to-face counselling.

Sally Merry, an associate professor of psychology at Auckland University who helped develop the game, said each of its seven levels taught players about a new behaviour therapy.

They could practise the techniques in the Sparx world using mini-games before trying it out in real life.

In one level, the players are taught the technique of swapping negative thoughts for positive ones, by making them zap malignant “gnats” – gloomy, negative automatic thoughts – to transform them into positive “sparks”.

A “guide” then encouraged players to try out what they had learnt, said Merry.

“He sets challenges for the young person – he”ll say, `you choose some [techniques] and go and try them out in your real world … and tell me about it next week,’” Stuff.co.nz quoted Merry as saying.

The game was aimed at young people with mild to moderate depression and the guide prompted players to talk to someone if their mood was worsening or not improving.

A prototype of the game, created by PhD student Karolina Stasiak, was trialled last year.

Merry said the 34 teenagers who took part in the trial liked the game. (ANI)

Giant airship can carry 1,000 pounds of payloads up to 20,000-ft above Earth

Washington, May 6 (ANI): A 235-foot prototype Bullet Airship, called The Bullet 580, can carry 1,000 pounds of payloads up to 20,000 feet above Earth.

The inflatable airship, which has a helium-filled tanker and an inner hull filled with ambient air, can fly heavy instruments to high altitudes and remote locations, or serve as an eye-in-the-sky. It will be inflated later this month, for the first time ever.

The airship, a pioneering technological innovation in a long time, will be used as a sky based platform to relay communications and to keep watch on oil spills, forest fires or even pirates at sea.

“We”re kind of like a truck in the sky that can have different types of payloads for different requirements,” Discovery News quoted Mike Lawson as saying. Lawson is the chief executive of Alabama-based E-Green Technologies.

“The bags expand as we go up in altitude,” said Lawson. “If you hit a hard landing with any of our airships, it”s just going to kind of bounce. (ANI)

Argela Announces an Entrepreneurship Program: Argela-WIN

ISTANBUL–(Business Wire)–
Argela, a leading telecommunication solutions provider, today announced a new
program to profilerate innovation and entrepreneurship. Argela Wiring Innovation
(Argela-WIN) program will welcome emerging technologies as well as novel to
identify the methods of working together. The newco, participating Argela-WIN
program, may be at the `idea` stage, or may have a prototype ready or a mature
product for the market. Argela-WIN has something to offer at all these stages.

Argela is pleased to share his entrepreneurship experience and venture power in
telecommunication with local and global startups and have their ideas, solutions
find their presence in Argela and in global,” stated Dr. Mustafa Ergen, director
of research and technology at Argela. “With this program, we want to transfuse
our knowledge and accelerate new technologies ready for our consumers .”

The program is governing in win.argela.com.tr.

About Argela

Argela collaborates with telecom operators around the world to help them
increase their revenue and customer satisfaction; contain their costs, and
decrease churn through distinguished and innovative turn-key solutions
including, but not limited to, Argela ADz-on advertising platform, fixed-mobile
convergence, Web TV, intelligent network (IN) applications and femtocell.

Argela combines its extensive telecom expertise with its high energy and
ultimate passion to add value to its customers` businesses.

For more information, please visit www.argela.com.

Argela
Nurcan Bicakci Arcan
+902123281248
nurcan.arcan@argela.com.tr

Copyright Business Wire 2010

Soon, pill that signals it has been swallowed

Washington, Apr 1 (ANI): University of Florida engineering researchers are designing a pill which confirms that patients have taken their medication.

The boffins have added a tiny microchip and digestible antenna to a standard pill capsule. The prototype is intended to pave the way for mass-produced pills that, when ingested, automatically alert doctors, loved ones or scientists working with patients in clinical drug trials.

“It is a way to monitor whether your patient is taking their medication in a timely manner,” said Rizwan Bashirullah, UF assistant professor in electrical and computer engineering.

Such a pill is needed because many patients forget, refuse or bungle the job of taking their medication.

The American Heart Association calls patients’ failure to follow prescription regimens “the number one problem in treating illness today.”

Bashirullah, doctoral student Hong Yu, UF materials science and engineering Professor Chris Batich and Neil Euliano of Gainesville-based Convergent Engineering designed and tested a system with two main parts.

One part is the pill, a standard white capsule coated with a label embossed with silvery lines. The lines comprise the antenna, which is printed using ink made of nontoxic, conductive silver nanoparticles. The pill also contains a tiny microchip, one about the size of a period.

When a patient takes the pill, it communicates with the second main element of the system: a small electronic device carried or worn by the patient – for now, a stand-alone device, but in the future perhaps built into a watch or cell phone. The device then signals a cell phone or laptop that the pill has been ingested, in turn informing doctors or family members.

Bashirullah said the pill needs no battery because the device sends it power via imperceptible bursts of extremely low-voltage electricity. The bursts energize the microchip to send signals relayed via the antenna. Eventually the patient’s stomach acid breaks down the antenna – the microchip is passed through the gastrointestinal tract — but not before the pill confirms its own ingestion.

“The vision of this project has always been that you have an antenna that is biocompatible, and that essentially dissolves a little while after entering the body,” Bashirullah said.

The team has successfully tested the pill system in artificial human models, as well as cadavers. (ANI)

‘Bionic eye’ sunglasses unveiled

New Delhi, March 30 (ANI): What looks like a pair of dark sunglasses could one day give virtual sight back to those with impaired-vision, that’s the idea behind the ‘bionic eye’ shades.

Bionic Vision Australia has unveiled a sunglasses prototype for a bionic eye, which researchers hope to implant in its first recipient by 2013, reports Xinhua.

The prototype uses a tiny video camera attached to the middle of a pair of sunglasses, which researchers designed to improve the sight of those suffering degenerative vision.

The camera captures images that are sent to a transmitter a patient wears in their shirt pocket or on a belt.

The signal is then sent using radio waves to a microchip implanted in a patient” s retina on the back of the eye.

Electrodes on the retina are then stimulated, which the brain interprets as an image.

“It”s amazing technology,” said Leighton Boyd, who has lost nearly all his vision as a sufferer of retinitis pigmentosa. (ANI)

NASA concludes tests for prototype Moon rovers

Washington, September 16 (ANI): NASA has concluded two weeks of technology development tests on two of the agency’s prototype lunar rovers.

“These tests provide us with crucial information about how our cutting edge vehicles perform in field situations approximating the moon,” said Rob Ambrose, Human Robotic Systems project lead at NASA’s Johnson Space Center in Houston.

“We learn from them, then go back home to refine the technology and plan the next focus of our research,” he added.

The annual studies featured an intensive, simulated 14-day mission.

Two crew members, an astronaut and a geologist, lived for more than 300 hours inside NASA’s prototype Lunar Electric Rover.

The explorers scouted the area for features of geological interest, then donned spacesuits and conducted simulated moonwalks to collect samples.

The crew also docked to a simulated habitat, drove the rover across difficult terrain, performed a rescue mission and made a four-day traverse across the lava.

Throughout the test, the crew provided updates via Twitter and posted pictures and video online.

Prior to the test, NASA’s K10 scout robot identified areas of interest for the crew to explore.

NASA’s heavy-lift rover Tri-ATHLETE – or All-Terrain Hex-Legged Extra-Terrestrial Explorer – carried a habitat mockup to which the rover docked. (ANI)

Roads made of solar panels may solve energy crisis

London, September 9 (ANI): The U.S. Department of Transportation is funding a new research project aimed at replacing asphalt with solar panels as the basic material for making roads, in a bid to solve the crisis of electricity.

As part of the scheme, a U.S. firm called Solar Roadways has won a grant of 100,000 dollars from the Government to carry on with its work on a prototype glass solar cell panel that may one day turn motorways into major energy sources.

It is expected that these panels will be capable of generating enough power to support local communities, according to reports.

The panels would also be covered with a mosaic of small lights, which could be illuminated to provide road markings, and warning messages to drivers.

They could also be embedded with heaters to keep the road clear by melting snow and ice.

The company believes that a four-lane, one-mile stretch of road made from the 12 ft by 12 ft panels, each capable of producing 7.6 kilowatt hours of electricity each day, can generate enough power for 500 homes.

Solar Roadways plans to develop its idea to allow the energy produced to be channelled into the national grid, as well as sold to drivers of electric cars on the roadside.

“This feature packed system will become an intelligent highway that will double as a secure, intelligent, decentralised, self-healing power grid which will enable a gradual weaning from fossil fuels,” the Telegraph quoted the company as saying in a statement. (ANI)

Open-source camera may help reinvent digital photography

Washington, September 4 (ANI): Stanford scientists may revolutionize digital photography with the aid of an open-source digital camera, which will give programmers around the world the chance to create software that will teach cameras new tricks.

Marc Levoy, professor of Computer Science and of Electrical Engineering, says if the technology catches on, camera performance will be no longer be limited by the software that comes pre-installed by the manufacturer.

He has revealed that virtually all the features of “Frankencamera” – focus, exposure, shutter speed, flash, etc. – are at the command of software that can be created by inspired programmers anywhere.

“The premise of the project is to build a camera that is open source,” said Levoy.

Graduate student Andrew Adams, who has helped design the prototype of the Stanford camera, imagines a future where consumers download applications to their open-platform cameras the way Apple applications are downloaded to iPhones today.

The camera’s operating software is expected to be publicly available in a year.

Users will be able to continuously improve it, along the open-source model of the Linux operating system for computers or the Mozilla Firefox web browser.

Programmers will have the freedom to experiment with new ways of tuning the camera’s response to light and motion, adding their own algorithms to process the raw images in innovative ways.

Levoy’s plan is to develop and manufacture the “Frankencamera” as a platform that will first be available at minimal cost to fellow computational photography researchers.

Within about a year, after the camera is developed to his satisfaction, Levoy hopes to have to have the funding and the arrangements in place for an outside manufacturer to produce them in quantity, ideally for less than 1,000 dollars. (ANI)

Robots may soon be serving the elderly at home just like humans do

Washington, August 29 (ANI): Elderly people with limited mobility may soon come to be served by robots in a manner as if they are being served by other persons, thanks to a collaborative study by three University of Illinois at Chicago engineers and a Rush University nursing specialist.

“We want to help elderly people communicate with robots, to tell them what they need, and to perform physical activities,” said Milos Zefran, UIC associate professor of electrical and computer engineering.

The three-year study, supported by a grant of 989,000 dollars from the National Science Foundation, is aimed at developing software to allow the elderly to communicate with robots that can respond to a wide range of verbal language, non-verbal gestures, and touch.

“If we can help the elderly remain independent and continue living in their own homes, that will improve their health outlook while relieving the burden on family members and health care providers,” said Zefran, the lead researcher.

The researchers say that their communication interface software will have at its core a novel adaptive and reliable recognition methodology called Recognition by Indexing and Sequencing (RISq), which will allow the robot to comprehend speech altered by impairments and to learn and adapt to such speech.

To enable a robot to understand and correctly respond to various forms of human touch, the researchers will combine techniques from natural language processing and haptics, a scientific term to describe the computerized sense of touch.

They say that the robot will also know how to respond to the user safely when performing everyday chores, such as cooking or making a bed.

“We’ll start by observing interaction between human helpers and the elderly. We’ll identify what kind of language, physical interactions and non-verbal interactions are used. Then we’ll develop a mathematical framework to model this interaction so it can be treated by the robot as a single way of communicating,” Zefran said.

The researchers say that they will program and test a robot, in order to devise refinements, as the project progresses.

“The human-robot interface is really a long-standing, open problem that won’t be solved in three years. But we’ll have a working prototype by then, and we’ll know what additional research needs to be done,” Zefran said.

He believes that this research project may also find widespread use in delivery of institutionally based health care, where routine tasks now done by nurses could be handled by robots.

“If robots can alleviate some of the burden nurses face, they then could spend more time where they’re really needed — providing the human contact that a robot can’t replace,” he said.

Zefran has revealed that his work will include developing seminars or a new graduate or upper-level undergraduate course that considers the various factors that allow robots to perform more sophisticated tasks. (ANI)

Now, an intelligent system to help the elderly avoid forgetting everyday tasks

Washington, August 28 (ANI): Scientists at the University of Granada (UGR) have announced the creation of a system that uses Artificial Intelligence techniques to help elderly people, or those with special needs, avoid forgetting certain everyday tasks.

The researchers have revealed that their system uses sensors distributed in the environment to detect people’s actions, and mobile devices to remind them.

Suppose, say the researchers, an elderly lady who is about to go to bed goes into her room, sits down on the bed, takes off her slippers, and turns off the light.

According to them, before she gets into bed, a small alarm will go off, and a mobile device will remind her that she has forgotten to take her tablets.

“It is a prototype which, in a non-intrusive manner, facilitates the control of the activity of people with special needs and increases their independence,” said Maria Ros Izquierdo, from the Higher Technical School of Computer Engineering of the UGR.

The system recognizes the everyday actions of the users by means of Radio Frequency Identification (RFID) labels. These labels are discreetly placed on the objects that the individuals touch most often, in such a way that, when they do so, a signal is sent to a computer or mobile device situated in the house itself or at an assistance centre some distance away.

To compile a list of actions-such as remembering to take the keys or the mobile phone before leaving home-the activities of the people are assessed with Artificial Intelligence techniques.

“It is not necessary to use cameras or microphones, and the devices which are used do not entail any technological complications for users, nor do they modify their daily routines,” said Ros.

To evaluate the novel system, the university team have also designed an intelligent space called ‘Tagged World’, which simulates the rooms of a house, with sensors embedded in the environment helping to recognize the behaviour of its occupants.

The researchers monitored each user so as to obtain an individualized database. They later verified with a test the reliability of the system and the degree of intrusion felt by the participants.

“The system does not modify the life of the users, but does positively modify that of the people who look after them,” indicated Ros, who recalled that elderly people or those with special needs often reject the aid of others and demand more independence.

The researcher believes that the new system may help to achieve this objective.

A research article describing the new system has been published in the Expert Systems with Applications magazine. (ANI)

Soon, soundwaves may help find early dental decay

Washington, Aug 25 (ANI): Aussie researchers are developing a tool that can use sound waves to identify early stages of tooth decay by measuring the mineral content of teeth.

Tooth decay begins by acid-forming bacteria eating away at the enamel, causing minerals to leach from it, softening, and weakening the tooth.

Sometimes dentists can identify this demineralisation by seeing a change in the colour of the tooth, or by looking at x-rays.

They also use sharp probes that test the hardness of the enamel, and find where the rot has set in, but all such probes can be painful and cause unnecessary damage to the teeth.

But PhD researcher David Hsiao-Chuan Wang, from the University of Sydney, and colleagues are now developing a less invasive new technique to measure mineral content of teeth, using sound waves generated by laser pulses.

“We want to be able to be able to quantify mineral content of the dental enamel,” ABC Online quoted Wang as saying.

He added: “We can keep the laser power below a damaging threshold.”

Laser pulses aimed at the tooth set up a series of high frequency sound waves (ultrasound) that travel through the enamel surface, penetrating it to different depths.

As a soundwave moves through a demineralised part of the tooth, it changes its speed, which can be detected.

Each soundwave penetrates to different depths of the enamel, depending on its wavelength, enabling a profile of the tooth to be built up, showing where decay has begun.

The researchers first tested the system on different known materials, before testing it on extracted human tooth.

They still have to test the system on teeth in patients, but firstly they need to develop a convenient handheld device and obtain ethics permission to trial it in humans.

Wang said that a prototype of the hand-held device could be ready in two years.

Professor Ian Meyers of the Australian Dental Association has said that testing the technique in the mouth is important, as saliva affects the property of teeth enamel.

Meyers also said that when decay was detected early, fillings could be avoided by either stopping the demineralisation through better oral care.

Otherwise, it could also be possible to re-mineralise the tooth by using products specifically designed for this purpose.

He said that the new technique could add to the range of tools available for dentists to identify early stages of decay, as long as it is affordable

Wang has estimated that the new tool would cost “below 50,000 dollars”, and complement rather than replace conventional methods.

He said that the ultrasound technique would be particularly useful in research, especially in evaluating the effectiveness of remineralisation treatments.

The study has been published in the journal Optics Express. (ANI)

Honda Crosstour | Honda Cross Tour | Accord Crosstour | Honda Crossover | Honda Accord Crossover | Crosstour | Honda Cars All-Wheel Drive | Honda Cars Four-Wheel Drive

Honda Crosstour | Honda Cross Tour | Accord Crosstour | Honda Crossover | Honda Accord Crossover | Crosstour | Honda Cars All-Wheel Drive | Honda Cars Four-Wheel Drive

The all-new crossover Honda Accord Crosstour vehicle will start production in September of this year at the East Liberty factory in Ohio.The Accord CUV will slot in-between CR-V and Pilot and will look to do battle with Toyota’s new Venza CUV.

These early-production prototypes are powered by Honda’s 3.5 i-VTEC engine, but earlier this year, we observed powertrain mules testing alongside a 2010 Acura RDX. We also noticed these mules accelerating rather briskly, so the 2.3L four-cylinder turbo motor from the RDX may also have a chance of making it into the Accord CUV.

One thing we can say for sure about this vehicle is that AWD will be an option. A close look at this prototype reveals that it has a rear differential. More than likely, this means the car has Honda’s VTM-4 AWD system.

The Honda Accord Crosstour will have four-wheel-drive, and will look similar to the ZDX Concept, but it will be built on the Accord platform. The engine line-up of the Honda Accord Crosstour will probably include some, it not all, the units that currently equip the Accord.

-wiki.

Pulse Smartpen – Smartpen – Livescribe Pulse Smartpen Tidbits – Livescribe Pulse Smartpen – Livescribe pens – Handwriting Recognition Service for Mac Comes to Device – Classrooms Go High-Tech to Engage Students

Pulse Smartpen | Smartpen | Livescribe Pulse Smartpen Tidbits | Livescribe Pulse Smartpen | Livescribe pens | Handwriting Recognition Service for Mac Comes to Device | Classrooms Go High-Tech to Engage Students

The Livescribe smartpen recognizes handwritten marks through a camera inside its tip that focuses on a minute pattern of dots printed on paper. It captures over 100 hours of audio through a built-in microphone and plays audio back through a built-in speaker or 3D recording headset. Files are uploaded from the pen to a computer using a USB connection. The technology will be much more affordable and portable than previous products used for this purpose – students can just put it in their backpacks with the rest of their books and notebooks.

Van Schaack and Miele will be using a prototype of the Livescribe smartpen and a Sewell Raised Line Drawing Kit, a Mylar-like film that is deformed when a student writes on it with a pen, creating raised drawings. Students will be able to touch a hand-drawn figure with their smartpen to hear audio explanations of its features.

As for other uses of the smartpen, Van Schaack believes the possibilities are endless.

“It really is a new computer platform – it includes most of the technology found in a typical laptop, but gets its information from handwriting rather than from a keyboard and mouse,” Van Schaack said. “One of the most immediate uses of it that I see will be for college students. It will allow them to spend more time listening in class while taking more of an outline form of notes. Later, when they are reviewing their handwritten notes, they can tap within them to hear what the professor was saying when they wrote a particular note, giving them the opportunity to annotate them for accuracy and additional detail.”

The smartpen is expected to hit stores during the first quarter of 2008 at a cost of less than $200. Livescribe interactive notebooks will run about the same price as a good quality notebook from a college bookstore.

For more information about the smartpen visit on : http://www.livescribe.com

For video of Van Schaack and the smartpen click here

Source: Melanie Moran
Vanderbilt University

Your cars may soon be powered by urine

New York, July 15 (ANI): Could it be possible to run your car on urine? Well, it may be, if Ohio University scientists are to be believed.

And their confidence stems from the fact that they have found a novel way to produce hydrogen energy from urine.

According to Discovery News, the scientists used a nickel-based electrode to make cheap hydrogen from urine.

When the research team led by professor Gerardine Botte stuck the electrode into a pool of urine, and applied an electrical current, hydrogen gas was released, which was used in fuel cells.

The prototype is about three inches by three inches, and is capable of generating 500 milliwatts of power.

The scientists hope to create commercial versions of the technology.

Botte expects that the fuel-cell urine-powered car could theoretically travel 90 miles per gallon.

“One cow can provide enough energy to supply hot water for 19 houses. Soldiers in the field could carry their own fuel,” the New York Daily News quoted him as saying.

The researchers focussed their study on urea, a urine by-product.

“Urea is a byproduct of a lot of cities and farms, but even if you take all the people and all the animals, there’s not enough to run the world,” said University of Georgia professor John Stickney.

He added that though applications using urine won’t be available to consumers for quite some time, it’s definitely worth developing.

“We are going to have to put together a lot of greener ways to collect energy that don’t produce greenhouse gases and don’t require us to go to war,” he added. (ANI)

Bavina Cars – Bavina Cars to set up manufacturing unit in Tamil Nadu

Bavina Cars – Bavina Cars to set up manufacturing unit in Tamil Nadu

Tamil Nadu government has allotted 100 acres of land for electric car manufacturer Bavina Cars India Ltd to set up a manufacturing unit at the State Industries Promotion Corporation of TamilNadu’s SEZ at Ranipet near here.

The company has been permitted to produce 25000 cars annually and commercial production of the five-seater vehicle was scheduled to commence from 2011, the release said.

Company promoter S Rajasekar on Friday received the order from Tamil Nadu Deputy Chief Minister M K Stalin, who test drove a prototype of the vehicle.

‘Invisibility cloaks’ come closer to reality

Washington, July 8 (ANI): A team of researchers at the Universitat Autonoma de Barcelona (UAB) have come up with a device called a dc metamaterial, which makes objects invisible under certain light.

The device does so, according to the researchers, under very low frequency electromagnetic waves by making the inside of the magnetic field zero, but not altering the exterior field.

It, thus, acts an invisibility cloak, making the object completely undetectable to these waves, the researchers say.

Based on an initial idea of the British Ben Wood and John Pendry-the latter considered the father of metamaterials-the research is being hailed as a step forward in the race to create devices that can make objects invisible at visible light frequencies.

“The theoretical work provides the details for constructing a real dc metamaterial and represents another step towards invisibility,” says Alvar Sanchez, director of the research.

“Now comes a very important stage: building a prototype in the laboratory and applying this device to improving magnetic field detection technology,” he adds.

Recent scientific discoveries have suggested that artificial materials containing unique electric and magnetic properties, known as metamaterials, may make it possible to create cloaking devices.

The metamaterial designed by the research group at UAB consists in an irregular network of superconductors, which give materials specific magnetic properties that can create “invisible” areas in the magnetic field and in very low frequency electromagnetic fields.

The researchers say that their discovery can be applied to medical purposes, such as magnetoencephalographic or magnetocardiographic techniques that are used to measure the magnetic fields created by the brain or the heart, which in order to function properly need to shield out all other existing magnetic fields.

They also believe that their discovery can be used in other areas in which magnetic field detection is important, such as in sensors, or to prevent the magnetic detection of ships or submarines.

A research article on their work has been published in the journal Applied Physics Letters. (ANI)

‘Laser dazzler’ to stop careless drivers without blinding them

London, July 2 (ANI): Reports indicate that the Pentagon is developing a laser dazzler that will force drivers to stop without harming their eyes.

When a vehicle approaches a checkpoint at speed, ignoring warning signs to slow down, troops do not know whether the driver is simply careless or a suicide bomber.

This makes it necessary for troops to have a clear and harmless way of forcing drivers to stop.

Green laser dazzlers designed to temporarily blind drivers were sent to US forces in Iraq and Afghanistan for just this purpose.

But at short range they can damage the eye, and a number of US troops and civilians have ended up in hospital with eye injuries after “friendly fire” incidents.

US troops and civilians have been sent to hospital with eye injuries after ‘friendly fire’ incidents.

Now, according to a report in New Scientist, the US Department of Defense’s Joint Non-Lethal Weapons Directorate (JNLWD) in Quantico, Virginia is developing a pulsed laser designed to prevent eye damage.

Its wavelength means a portion of the light is absorbed by the vehicle windscreen, vaporising the outer layer of the glass and producing a plasma.

This absorbs the rest of the pulse and re-emits the energy as a brilliant white light that is dazzling but harmless.

Because the light is emitted from the windscreen, the effect on the driver’s eyes should be the same regardless of the vehicle’s distance from the laser.

According to Scott Griffiths of the JNLWD, a working prototype could be ready by next year. (ANI)

Space and robotics technology used to improve forest planning and harvesting

Washington, June 30 (ANI): Space and robotics technology have been combined to develop an advanced Precision Forestry Positioning System, which allows more efficient forest planning and harvesting.

Invented by researchers at the Institute of Man-Machine-Interaction at the RWTH Aachen University in Germany, the system has helped catalogue 240 million single trees in the German region of North Rhine-Westphalia. he system combines remote-sensing maps from airplanes with satellite navigation data to map each tree in a forest.

This information is then used to plan which trees are to be cut, and when.

Finally, the plan is used on harvesters to identify which trees to cut. This helps make the harvesting more efficient, optimises overall wood production and reduces costs.

The system won the North Rhine-Westphalia Region’s 2008 European Satellite Navigation Competition, which was supported by ESA’s Technology Transfer Programme Office.

“We already have one harvester in operation with our system onboard. As the prototype works well, we are fairly close to the stage where we can go into production. Another 6 to 12 months, and we should be there,” said Professor Dr Jurgen Rossmann from RWTH Aachen University, who developed the system together with Petra Krahwinkler, Arno Bucken and Dr Michael Schluse.

The objective of the Precision Forestry Positioning System is to automate and optimize all the work involved in foresting, from the early planning of the forest to the final cutting of single trees, in order to be competitive on the worldwide market, and to overcome efficiency problems related to the forest ownership structure of the region.

“Precision farming is important in today’s agriculture, where farmers can save money with the use of satellite navigation systems,” explained Arno Bucken.

“However, the accuracy of the GPS navigation system, which is of 20 to 30 m, is not enough to identify single trees in a forest. Much higher accuracy is needed,” he added.

“We found a solution to this problem, which increases the accuracy to 50 cm, by using GPS as the initial reference position, and then taking remote-sensing data to identify the single trees in the forest,” he explained.

To help the planning, a virtual computer-based forest has been developed with all trees being identified by their location, based on the GPS and remote-sensing data.
In addition, a fourth dimension, ‘time’, has been added, and is of the utmost importance for this system.

“All trees are not only known by their geo-coordinates, but they are also time-stamped, and all measurement data are archived.

This makes it possible to see ‘how trees grow’, as well as look back to learn from the past,” said Rossmann. (ANI)

New instrument may detect groundwater deep inside Mars

Washington, June 25 (ANI): A team of Boulder (US) scientists and engineers has tested a new instrument prototype that might be used to detect groundwater deep inside Mars.

Known as the Mars Time Domain Electromagnetic Sounder (MTDEM), the instrument uses induction to generate electrical currents in the ground, whose secondary magnetic fields are in turn detected at the planetary surface.

In this way, the electrical conductivity of the subsurface can be reconstructed.

“Groundwater that has been out of atmospheric circulation for eons will be very salty,” said the project’s principal investigator Dr. Robert Grimm, a director in the Space Science and Engineering Division at Southwest Research Institute. “It is a near-ideal exploration target for inductive systems,” he added.

The inductive principle of the MTDEM is distinct from the wavelike, surface-penetrating radars MARSIS and SHARAD presently orbiting Mars.

“The radars have been very useful in imaging through ice and through very dry, low-density rock, but they have not lived up to expectations to look through solid rock and find water,” said Grimm.

The time-domain inductive method uses a large, flat-lying loop of wire on the ground to generate and receive electromagnetic signals.

In order to do this robotically, the team developed a launch system that shoots two projectiles, each paying out spooled wire as they fly.

Data taken during the test launches allowed Warden and Grimm to scale the system for a flight mission. The MTDEM prototype deployed to a distance of more than 70 meters.

For Mars, a system deploying a 200-meter loop would be less than 6 kilograms mass and could detect groundwater at depths up to 5 kilometers (3 miles). Most of the instrument’s mass would be in the loop and deployment system.

According to Barry Berdanier, the Ball electrical engineer who built the MTDEM electronics, the flight electronics would comprise just a few hundred grams.

“Electromagnetic induction methods are widely used in groundwater exploration,” said James Pfieffer of Zapata Incorporated, a geophysical firm that provided field support.

“Subsurface, liquid water on Mars could be a habitable zone for microbes. We know that huge volumes of discharged groundwater have shaped Mars’ ancient surface,” said Grimm. (ANI)