Wednesday 12 April 2017

Controlling Turtle Motion with Human Thought

Turtle Motion
About nine years ago we saw the flick which showed humans controlling the body of an alien. Today we have that technology though it is in the initial but has huge potential to grow by leap and bounds in the upcoming years. Leaving the realm of science fiction aside scientists has long been working on developing a system called ‘brain computer interfaces’ or BCI. This particular technology is designed to allow humans to read and use the thought in order to control the machines and one of its prime examples are the humanoid robots.

Now the researchers at Korea Advanced Institute of Science and Technology (KAIST) had successfully developed a highly sophisticated human turtle interaction system. This system allows the signals emerging from the human brain to produce desirable effect on the movement of the turtle.

How this technology works?

If you are wondering how human are able to control the turtle movements simply with their thought then here is complete process. Human operator has to wear a head mounted display which is commonly refereed as HMD. HMD IS combined with the BCI which helps in immersing the human operator right into the turtle environment. On other hand the turtle in question is equipped with a cyborg system which consists of a camera, Wi-Fi receiver along with a control module as well as a battery. All of this is mounted on the upper shell of the turtle. A black semi-cylinder with a slit is also placed on the shell which helps in forming a true simulation device.

A camera is mounted on the turtle which is received by a human operator. Using these real time video images the human operator has to be deciding where he wants the turtle to move about. Human operator is required to provide all the commands which affects the motion of the turtle using a wearble BCI system which effectively makes use of the electroencephalography (EEG) signals.

Currently the BCI system is designed to take commands only in the three metal states of left, right and idle. Now when the human operator tends to make the choice either left or right that commands happens to activate the turtle simulation device which is connected through a Wi-Fi. This particular process invokes a natural instinct in the turtle to move towards the light and thereby it changes the direction.

Future applications of this technology

This research has clearly demonstrated how the human thought can be utilized in developing animal guiding scheme for turtles. This technology in future can be easily integrated into positioning system and can certainly help in augmented and virtual reality techniques.

On other hand this can be helpful in enabling a wide range of application which might devices form the military reconnaissance and surveillance. But for these to happen it might take another decade to make the technology human proof, robust and highly reliable so that it can distinguish from the raw and concentre commands originating from the human mind.

Google Takes Aim At Update Its Duo Videoconferecing App in Battle with Skype, Messenger and Facetime

Google’s New Video-Calling App – Duo

A new video-calling app known as Duo had been launched by Google as a challenge to Skype and Apple’s Facetime. It tends to work using your mobile phone just like WhatsApp, once the app has been downloaded and logged utilising a Google account. The user can instantly video call any person from their contacts who also tend to have the app.

Though the main focus of Google is on ease, it does have duo features with a provision of differentiating it from its opponents. For instance a feature known as `Knock Knock’, enables the user to see live video of your caller before answering, providing you with a sense of what they could be up to and why they would prefer a chat.

 According to Google this makes video calls seem like an invitation rather than an interruption. Another benefit of the feature is the capability of switching between Wi-Fi and cellular data mechanically without dropping the call. This way you could start your call at home and continue effortlessly while heading out.

The benefit of Duo over FaceTime is that it tends to work on Android as well as iOS while FaceTime only operates on Apple devices. It has also been considered to be simpler than Skype enabling users to start a video call with only a tap.

Cope with Slower Networks

Justin Uberti, principal software engineer at Google had mentioned in a blog post that video calling is the next best thing to being with someone in person but too often it could be a frustrating or complicated experience.

One should not have to worry about whether your call will get connected or if your friend has been using the same kind of device similar to the one you could be using and this could be the reason why almost half of them never tend to made video calls on mobile.

Google has also built Duo to work to cope with slower networks in the background, like a 2G together with end-to-end encryption for the purpose of security. Google had mentioned that it would be offering an audio-only option on its Duo video calls service in order to assist users in communicating utilising poor quality connection and would be adding a feature to allow file sharing in group chats on its Allo messaging app.

In August, the company had launched Google due offering video calls for Android and iOS users, opposing it against Apple’s FaceTime, Microsoft Corp’s video calling app – Skype and Messenger of Facebook Inc.

Google Maps

Google Vice President for Product Management, Mario Queiroz had mentioned in a blog post after he had announced the moves at a Google conference in Sao Paulo that the audio-only calls would be working well on all connections speed and would be data efficient. In reply to responses from users in countries like Brazil,

Google had informed that Android users all over would be in a position of sharing documents as well as other files with friends on Allo in group chats. Moreover he also mentioned that they would have two new features for Google Photos on Android and iOS in order to make backup and sharing much easier on low connectivity.

When strong Wi-Fi connection tends to be available backed up photos would be replaced with high-quality version. Google has also mentioned that it would be adding new location sharing feature in Google Maps to enable users in letting friends and family to be aware of their whereabouts and when they would arrive at their destination. Queiroz had also mentioned that users could stop sharing that information whenever they desire to do so.

Fuzz Fibers Can Take Rockets Heat

 Fuzz Fibers
Rocket engines of latest design have much vigor, and produces heat. Recently, NASA has made a joint effort in order to create some fibers for taking the heat of rockets.

The special fibers are manufactured with silicon carbide, which may be comparable to Velcro. They are able to resist the pressure, which is experienced by materials in many applications of aerospace. Such fibers give enough support to composite materials, which are often applied in the latest rocket engines with a capability of enduring high level of temperature. Ceramic materials, present in these rockets, make use of the fibers for toughening the system. However, at any time, brittleness or cracks may turn up, especially because of oxygen exposure.

Use of nanotubes along with fibers-

The researchers of Rice laboratory have implanted nanowires and tubes into fibers’ surface. The uncovered spots of these fibers have coiled design. They work almost as a hook to add value to Velcro. After making the experiment, the scientists have concluded that it leads to the development of powerful interlocking links with lots of knots of fibers. As a result, a composite has reduced level of cracking risk. Moreover, due to sealing, the chemical structure of fibers is not changed.

Amelia Hart, one of the students of Rice University, has stated that fuzzy fibers could be improved with the application of nanotubes (made of silicon carbide), which are interwoven with one another, while is placed inside composite. It also increases the resistance level and strength to endure intense heat.

A test on compression and friction confirmed about the force, which was essential for moving the nanotubes over one another. This force seemed to be quite higher than what is required for sliding the simple fibers or nanotubes. They could also pull through extreme compression, created with the help of nano-indenter. The indenters prevented breakdown for much extensive period.

The complete work has been explained in detail in one of the journals. It had been started, while Hart had met Meador, one of the researchers of NASA. Presently, Meador is a manager of nanotechnology program, while Hart was engaged in the study, related to carbon nanotubes development.

It had brought about a good partnership, which would increase the possibility of combining her thoughts with the engineer of NASA. A partial conversion of silicon carbides was accomplished. In fact, Hart had applied the skill for growing nanotubes to create fresh composite.

Tests on different fibers-

Hart along with other researchers blended the fiber in iron-based catalyst. After that, they applied a deposition of chemical vapor for inserting carbon nanotube system to a surface. It turned out to be the model of ultimate product. Then, these fibers had been heated under severe temperature.

 It is considered by researchers that the fibers would modify heat and light resistant silicon carbide strand. The later one is able to stay consistent to almost 1,600 C. It gives the scientists a confidence on the success that they would get by integrating nanotubes, made of silicon carbide.

Tuesday 11 April 2017

New Electron Microscope Sees More Than an Image

EMPAD
In the field of material science, electron microscope has lots of application as an effective device. It is usually known to all that this tool helps in viewing at an image. However, with the new enhancement done few days ago, this microscope has gained much more power. And it has been confirmed recently by some physicists at Cornell. The overall system is named as Electron Microscope Pixel Array Detector. It produces image along with some important data on the present electrons, which develop that image.

To give a clear idea about the microscope, Professor David Muller has said that it is possible to identify the tilts, polarity, rotations and magnetic or electric fields.

Manufacturer of the new microscope-

CTL department of Cornell University has accredited the innovation of new microscope to a prominent manufacturer, FEI. According to FEI, the design may be commercialized fully on the present year. In a periodical (Microscopy and Microanalysis) in 2016, the researchers have clarified the work in detail.

In another standard microscope, STEM, the researchers have observed that few electrons could be captured with the help of a specimen. The scanning is done from side to side to generate images. There is a detector at the base, and it interprets how the electrons are varying in their intensity.

EMPAD is intended for the replacement of a standard detecting system, and it is designed with specific pixels, which are sensitive to electrons. Every one hundred and fifty microns square are attached to a circuit, which warns signals with enough effectiveness in understanding signals. This technology is comparable to what you may find in contemporary camera. The major intention is the detection of angles or directions, where the electrons come out. Every electron usually does not strike at the same pixel.

Microscope with prompt working ability-

EMPAD has remarkable sensitivity and speed along with extensive intensities, tracked by it. It also detects each of the electrons and beams that contain almost millions of electrons. To explicate the phenomenon, Muller has commented that it is just like the act of capturing image of sunset, which displays surface details and everything about the shadows.

The advancement that has been done to the device is really unique and increases the excitements of scientists. Collection of all electrons that are in scattered condition develops the sensitive feature of the device. Moreover, it is also reduces the risk of damage and any negative effect on the living sample. EMPAD has power to track the frame of image within shortest time, and it identifies several electrons for every pixel and frame. In fact, it is multiple speedier than that of any traditional electron microscope.

Thus, the new microscope has brought a revolution in the domain of science. The scientists are now competent at examining the internal part of the cells. The research process has been backed up by Department of Energy in the United States and Cornell. STEM adaptation has also received support from Kavli center.

Innovative Software Convert Wi Fi Data into Energy Savings

UBC
The advancement of technology had begun since the arrival of human kind of Earth’s sphere. From the invention of knifes and spears to the creation of computers and tablets, man has managed to come a long way. It is a known fact that this technological advancement has been exceptionally brilliant in the past two centuries. Every day scientists around the world are striving to create something newer that is not only mind boggling but will also be useful to mankind.

High quality air with reduced energy consumption 

Recently in the University of British Columbia in Canada, a group of dedicated engineers have derived a way by which they could use Wi-Fi to establish number of building residents. By determining the number, they can easily adjust the ventilation through which they would be able to save energy without compromising on the air quality. Stefan Storey who holds a PhD in environmental studies and resource management and masters in mechanical engineering from UBC is leading the project. He remarked that thousands of tablets, laptops, and Smartphone are connected everyday to Wi-Fi through UBC. The Bridge Software incognito calculates the total number of Wi-Fi connected devices in every room. This anonymously calculated number is then passed on to the head building control system of UBC, which then regulates airflow through the buildings, in real time.

Based on this resident count, the control system can manage the airflow, ramping it for a crowded lecture, or bringing it down in other times. Storey collaborated with UBC for testing the effectiveness of this new technology at one of the busiest places, Irving K Barber Learning Centre, which is attended by thousands of staffs and students. It not only resulted in increased occupant comfort and goof air quality but also reduced energy expenditure by five perfect in 12 months.

Increased thermal comfort at a reduced rate 


UBC’s managing director, David Woodson remarked that this system can save over $100,000 in energy costs every year and would also assist the university in reducing greenhouse gas emission. UBC is considering this system to be the future of managing and better handling of energy consumption. The test conducted at the learning centre was highly successful and seeing the results of this ordeal, UBC is all set to install the technology in 8 to 10 more buildings within 5 months. Woodson also stated that this software uses Wi-Fi network, to reduce the disruption and lower the costs while offering thermal comfort and providing good air quality. He also stated that UBC Wi-Fi user’s private information is completely secured and protected as per the rules of Canadian privacy legislation.

Storey believes that this project emphasizes the prospective advantages of using Wi-Fi network to create smart buildings. With the support from UBC he also co founded Sensible Building Science, a company that helps staff entrepreneurs, faculty, alumni and students to lead their way through, from a basic idea to the market. Storey’s patent innovation is being set up at campuses around B.C. UBC is extremely happy about the success of this project and is thus is planning to expand their system to 10 more campuses.