#Hubble Reveals That Markarian 231 Is powered by a Double Black hole Using NASA Hubble space telescope, a team of astronomers discovered that Markarian 231 is powered by two central black holes furiously whirling about each other.
use these techniques on a gram-scale object to reduce quantum noise in detectors, thus increasing the sensitivity to pick up on those gravity waves,
Applications of these devices include advanced microscopes, displays, sensors, and cameras that can be mass-produced using the same techniques used to manufacture computer microchips. hese flat lenses will help us to make more compact and robust imaging assemblies,
said Mahmood Bagheri, a microdevices engineer at JPL and co-author of a new Nature Nanotechnology study describing the devices. urrently,
and the study principal investigator. ut this new technology is very similar to the one used to print semiconductor chips onto silicon wafers,
Seen under a scanning electron microscope the new metasurfaces that the researchers created resemble a cut forest where only the stumps remain.
Semiconductor lasers typically emit into elliptical beams that are really hard to work with and the new metasurface optical components could replace expensive optical systems used to circularize the beams.
a Yale postdoctoral researcher in applied physics. xamples include more sensitive biological and chemical sensors, lasers with higher output power,
#New Technique Could Enable Chips with Thousands of Cores Researchers from MIT have unveiled the first fundamentally new approach to cache coherence in more than three decades,
a memory-management scheme that could help enable chips with thousands of cores. In a modern, multicore chip, every core or processor has its own small memory cache, where it stores frequently used data.
But the chip also has shared a larger cache, which all the cores can access. If one core tries to update data in the shared cache,
other cores working on the same data need to know. So the shared cache keeps a directory
In a 64-core chip, it might be 12 percent of the shared cache. And that percentage will only increase with the core count.
Envisioned chips with 128,256, or even 1, 000 cores will need a more efficient way of maintaining cache coherence.
In a 128-core chip that means that the new technique would require only one-third as much memory as its predecessor.
But with a 256-core chip, the space savings rises to 80 percent, and with a 1, 000-core chip, 96 percent.
When multiple cores are simply reading data stored at the same location, there no problem.
With a directory system, the chip looks up which cores are working on that data and sends them messages invalidating their locally stored copies of it. irectories guarantee that
In massively multicore chips, Yu says, this could lead to performance improvements as well. e didn see performance gains from that in these experiments,
however, that chip designers are conservative by nature. lmost all mass-produced commercial systems are based based on directory protocols,
and theye being eyed for use as building blocks in hybrid structures with unique properties for electronics,
scanning transmission electron microscopes only produce two-dimensional images. So creating a 3-D picture requires scientists to scan the sample once,
Using a scanning transmission electron microscope at the Lawrence Berkeley National Laboratory Molecular Foundry, Miao and his colleagues analyzed a small piece of tungsten,
#New Protein-Based Sensor Detects Viral Infection, Kills Cancer cells Biological engineers from MIT have designed a modular system of proteins that can detect a particular DNA sequence in a cell
This protein-based sensor can be customized to detect any DNA sequence in a mammalian cell
Engineers Build Protein-Based Sensor to Detect Viral Infection At left, cells glow red to indicate that the detection system has been delivered successfully.
The nanoparticle hydrophilic layer essentially locks in the active ingredient, a hydrophobic chemical called padimate O. Some sunscreen solutions that use larger particles of inorganic compounds, such as titanium dioxide or zinc oxide,
The main limitation to mapping large parts of the brain is the analysis of the data obtained with electron microscopes.
Similarly, liquid cooling for high-performance electronics also could be made more efficient by being able to control the rate of bubbling to prevent overheating in hotspots,
especially in the electronics cooling industry to cool hot spots. Such strategies can be applied effectively through simple electric controls using the new technology.
The project involves installing high-performance power electronic converters at individual homes and offices. By doing this, utilities can increase the voltage sent over local networks to give customers more flexibility.
Tan and company built their igh Doppler resolution passive Wi-fi radaron two multi-frequency, software-defined, FPGA-based transceivers (National Instrumentsusrp,
promising a new approach to electronics. It even been engineered to act like a semiconductor with a band gap for stopping
and starting the flow of electrons, thus offering an alternative to silicon in electronics. Despite these properties,
and a host of others that seem to sprout up regularly, nobody had been able to make graphene behave as a superconductor, until now.
The key observation was increased that this number of coupled pairs led to superconductivity, which the researchers measured by identifying an energy gap between the material's conducting and nonconducting electrons.
That energy gap is equal to the amount of energy needed to break Cooper pairs. The researchers who demonstrated last year the role phonons played in the superconductivity of graphite and calcium, Patrick Kirchmann and Shuolong Yang of the SLAC National Accelerator Laboratory
believe this latest work could usher in the fabrication of nanoscale superconducting quantum interference devices and single-electron superconductor quantum dots u
the temperature of the road itself (taken by infrared sensors), barometric pressure, and of course the stage of those windshield wipers. e are pioneering the connected car,
and the graphene acts as the transparent electrode material. Graphene has long been pursued as a potential replacement for indium tin oxide (ITO) as a transparent electrode material for displays.
Here again, graphene transparency, high conductivity, and potentially low cost seemed attractive to the researchers. The researchers improved on the conductivity of the graphene by coating it with a thin layer of a polymer that also served as an adhesion layer to the perovskite active layer during the lamination process.
which the graphene formed the top transparent electrodes. This approach maintained the transparency of the electrodes
while increasing their sheet resistance. A big concern for the researchers was lowering costs. They claim that their solar cells cost less than US$. 06/watt,
and the graphene acts as the transparent electrode material. Graphene has long been pursued as a potential replacement for indium tin oxide (ITO) as a transparent electrode material for displays.
Here again, graphene transparency, high conductivity, and potentially low cost seemed attractive to the researchers. The researchers improved on the conductivity of the graphene by coating it with a thin layer of a polymer that also served as an adhesion layer to the perovskite active layer during the lamination process.
which the graphene formed the top transparent electrodes. This approach maintained the transparency of the electrodes
while increasing their sheet resistance. A big concern for the researchers was lowering costs. They claim that their solar cells cost less than US$. 06/watt,
The scientists cut kirigami designs into a 3-micron-thick flexible crystalline gallium arsenide solar cells mounted on plastic sheets.
Measuring Electrical resistance Graphene merits in electronic devices and as a light bulb coating are still being debated. But new results suggest the atom-thick carbon sheet has one clear advantage:
which are taken using a device made of thin layers of gallium arsenide and aluminum gallium arsenide, can require a 10-Tesla magnetic field (and so a massive superconducting magnet) and temperatures within a few degrees of absolute zero.
Researchers have suspected long that the unique behavior of electrons in graphene, namely the big spacing between electron energy levels when the material is exposed to a magnetic field,
The team found they could measure resistance with a level of accuracy rivaling those yielded by gallium arsenide devices,
this observation could help lead to more sensitive hydrogen sensors for detecting leaks in fuel-cell-powered vehicles. ne main challenge
when working on hydrogen sensors is to design materials whose response to hydrogen is as linear and reversible as possible.
Its development could usher in a new generation of portable sensors that can use polarized light for applications ranging from drug screening to quantum computing.
Having a portable sensor capable of detecting a drug chirality could be a game changer. nexpensive CPL detectors could be integrated into the drug production process to provide real time sensing of drugs
in a press release. ortable detectors could be used to determine drug chirality in hospitals and in the field. n research published in the journal Nature Communications,
the researchers fabricated the portable CPL sensors by laying down nanowires in a zigzag pattern over a thin sheet of acrylic affixed to a thick silver plate.
the sensor could discern between left and right circularly polarized light. The researchers concede that their current prototype is not efficient enough to be commercially viable.
#Tunnel Transistor May Meet Power Needs of Future Chips A new kind of transistor consumes 90 percent less power than conventional transistors,
dramatically exceeding a theoretical limit for electronics, researchers say. These findings could one day lead to super-dense low-power circuits as well as ultra-sensitive biosensors and gas sensors, the investigators added.
The relentless advance of computing power over the past half-century has relied on constant miniaturization of field-effect transistors (FETS),
which serve as the building blocks of most microchips. Transistors act like switches that flick on and off to represent data as zeroes and ones.
A key challenge that FETS now face is reducing the power they consume. The switching properties of conventional FETS are restricted currently by a theoretical limit of 60 millivolts per decade of current at room temperature.
This limit, known as the subthreshold swing, means that each 60-millivolt increase in voltage leads to a 10-fold increase in current.
This led to a more than 90 percent reduction in power consumption compared with conventional FETS. The scientists and engineers detailed their findings in the 1 oct. issue of the journal Nature. his transistor represents a major breakthrough in the electronics and semiconductor industry
says study co-author Kaustav Banerjee, an electrical engineer at UCSB. The new TFET is made from two atomically-thin layers of semiconducting molybdenum sulfide crystal on top of a substrate of germanium.
Until now, the only experimental TFET to meet the International Technology Roadmap for Semiconductors (ITRS) goal of average subthreshold swing below 60 millivolts per decade over four decades of current was a transistor that used nanowires.
But that type is often challenging to fabricate using conventional semiconductor manufacturing techniques. This new TFET not only meets the ITRS goal
UCSB Banerjee suggests that potential applications for these new TFETS may include ultra-low-power electronics and computing,
and ultra-sensitive and low-power biosensors and gas sensors to enhance the Internet of things. However, Banerjee cautions that TFETS are designed not for speed
or high performance. hey are desirable for low-power electronics, he says s
#MIT's 3-D Microwave Camera Can See through Walls Visible light is all well and good for things like eyeballs,
in the same way that Microsoft latest Xbox Kinect sensor works. The time of flight camera sends out bursts of microwaves
and return to the sensor. After doing some not very fancy math with the speed of light,
including the use of reconfigurable focal-plane sensors or shrinking the transmission wavelength from microwave (3 cm) down to millimeter wave (5 mm),
which is streamed efficiently through the chip without caching, says van Rooyen. Its algorithms are tailor-made to identify genetic mutations,
They are used also to manufacture semiconductors, probe new materials, illuminate too-fast-to-follow chemical reactions,
the wavelength is long enough that we can fabricate waveguides with conventional machining techniques, provide accurate timing,
#Bright blue PHOLEDS Almost Ready for TV A new energy-efficient organic LED (OLED) that glows a deep blue is finally close to meeting the most stringent U s. video display brightness requirements,
OLEDS have enabled a new generation of bright, high-quality, low-cost, power-efficient, flexible, lightweight flat panel displays.
Each pixel in an OLED display typically consists of red, green, and blue OLEDS that shine with different brightnesses to produce any desired color.
Phosphorescent OLEDS (PHOLEDS) use only one quarter the energy of conventional OLEDS. Green and red PHOLEDS are used already in smartphones and TVS
leading to longer battery lives and lower electricity bills, but developing the kind of bright deep blue PHOLEDS needed for video displays has proven challenging.
This restriction of electron movement results in a junction-like structure that changes from a zero-gap conductor to a semiconductor and back to zero-gap conductor.
The other revelation yielded by this research is that it possible to manipulate the wrinkles to change graphene band gap using mechanical methods rather than chemical techniques. p until now,
The discovery that it was possible to produce graphene semiconductors without the need to chemically dope the carbon sheets was the result of trying to produce graphene films using chemical vapor deposition (CVD.
the researchers discovered that there were band gaps within them, which meant that they could act as semiconductors a
#Agtech Is The New Queen Of Green Before Monsanto acquired Climate Corporation in late 2013 for nearly $1 billion,
inexpensive but sophisticated hardware sensors have emerged to automate the collection of massive data sets. With these technology shifts, exciting technologies like drones, AI, satellite mapping, robotics,
In 2013, Apple acquired Primesense, the company which powered much of the tech that went into the original Kinect sensor.
if a user terminal was involved in the flow. And half the time you end up with fake emails and unverifiable information.
me a working system to control electronics in the home using an open and very usable chip interface.
Shaped like the Nest thermostat, the Control is actually a removable button/dial that you can carry from room to room to control lighting
Theye raised $3. 3 million to build out the product and they are already placing their specialized chips in OEM products around the world including Freemont
CA-based Soraa who is using the technology in their connected LED lamps. ee built the unique architecture where devices form a native,
this new system will let customers take advantage of more advanced sensor and image processing tools without sacrificing an interface that actually usable for operators in the field.
They could also put this into many different devices, such as wearable technology, embedded sensors, medical devices and Internet of things devices anything that doesn require massive amounts of electricity.
which has boosted security on its mobile app by using fingerprint sensors that are installed on some Samsung Electronics devices.
Qualcomm Technologies recently announced the development of the first comprehensive mobile biometric solution based on ultrasonic technology.
While traditional fingerprint authentication relies on capacitive touch-based sensors, the new Snapdragon solution features ultrasonic-based technology,
The goal is to create a direct-to-consumer brand (like Nest initial strategy with thermostats and then smoke detectors.
your name comes up on a transparent LCD screen box, and you pull out a bowl of quinoa.
#Mobile devices Will Either Have 3d Sensors Or Suffer Flat Sales When Apple hot on iphone 6ad campaign covered billboards and posters in 24 cities around the world,
Small, inexpensive sensors can now see our world in all three dimensions, for which consumer applications no amount of megapixels alone could achieve.
Apple recently confirmed acquiring 3d-sensor manufacturer Linx for $20 million. They didn say why,
when Allied Market research predicts 80 percent of smartphones will carry 3d sensors by 2018, earning a total of $2. 02 billion by 2020.
Allied Market research predicts 80 percent of smartphones will carry 3d sensors by 2018. And that just the start.
Full-sized 3d sensors are already being used for 3d scanning, a process that maps the exact size, shape and colors of a given object anything from a human face to priceless works of art.
The IDF15 keynote had Intel CEO Brian Krzanich quickly calculating storage space needed for objects by scanning them with a 3d sensor.
Based on human depth perception, this kind of sensor takes in feeds from two cameras (eyes) and compares the difference in horizontal placement of each object to calculate how far away it is.
Real-time environment maps provided by depth sensors are being used to test self-driving taxis and autonomous delivery drones.
wee sure to see loads of apps that make use of 3d sensors in ways even experts can predict.
Prasad said Raythaeon, Northrop grumman, Lockheed martin, of the US, Thales, Canada-Europe, Elta of Israel and NEC of Japan have the capability to make such systems.
SV Subba Rao said the phased array radar antenna is stationary while its beam generated by 4,
Prasad said Raythaeon, Northrop grumman, Lockheed martin, of the US, Thales, Canada-Europe, Elta of Israel and NEC of Japan have the capability to make such systems.
SV Subba Rao said the phased array radar antenna is stationary while its beam generated by 4,
"One purpose of this experiment was to show we could integrate bacterial catalysts with semiconductor technology.
#New lab-on-chip device to cut health test costs WASHINGTON: Scientists have developed a breakthrough lab-on-chip device that can substantially reduce the cost of sophisticated lab tests for medical disorders and diseases such as HIV,
Lyme disease and syphilis. The new device uses miniaturised channels and valves to replace"benchtop"assays-tests that require large samples of blood
The lab-on-chip device, which employs microfluidics technology, along with making tests more affordable for patients
The researchers combined several capabilities for the first time in the device they have dubbed"ELISA-on-a-chip"(for enzyme-linked immunosorbent assay.
The research was published in the journal Lab on a Chip p
#Robot journalist introduced in China A Chinese internet company has developed a robot journalist, who has written its first news story.
Electrode arrays were placed onto the man's sensory cortex, the brain region responsible for identi ying tactile sensations such as pressure.
The mechanical hand contains sophisticated torque sensors that can detect when pressure is being applied to any of its fingers,
and instead send messages through a computer algorithm to electrodes placed around the patient's knees to trigger controlled leg muscle movements.
#New chip-based technology to detect Ebola virus Researchers have developed a chip-based technology that can be integrated into a portable instrument for use in field situations where rapid,
"said senior author Holger Schmidt, professor of Optoelectronics at University of California, Santa cruz.""We're detecting the nucleic acids directly,
Adding a"preconcentration"step during sample processing on the microfluidic chip extended the limit of detection well beyond that achieved by other chip-based approaches,
The system combined a microfluidic chip for sample preparation and an optofluidic chip for optical detection.
The microfluidic chip was made of a silicon-based polymer, polydimethylsiloxane (PDMS), and had microvalves and fluidic channels to transport the sample between nodes for various sample preparation steps.
and transferred to the optofluidic chip for optical detection. The study was published in the journal Scientific Reports s
which requires electronics and systems that can withstand the heat of baking, adds to the cost
Treatment of the tumours with anti-erbb2/neu mabs followed by interferon-gamma led to a considerable inhibition of tumour growth
The Optical Communications and Sensor Demonstration (OCSD) Cubesat spacecraft is in orbit and operational, said Nasa and The Aerospace Corporation of El Segundo, California on Monday.
What makes Lily unique is that rather than having a large remote control or smart device app to control the flying unit,
Included in the pocket GPS unit are sensors that will let Lily know if a user is moving vertically such as a jump or fall.
when it came to specs that rival existing action cameras such as those offered by both Gopro and Sony.
"ipad covers, laptop bags, skins of iphone will no longer be just for casing electronics, but to collect some energy as well
and power those electronics, "said Fiona Scholes, a senior research scientist at Australia national science agency CSIRO.
This is again the case with a 3d printed solution for a problem almost as old as robots equipped with microphones themselves:
or equipping robots with a large number of microphones focused on various positions in the vicinity,
and diverse honeycomb passages leading to a single microphone in the center of the disk.
It is essentially a single-sensor listening system that combines acoustic metamaterials and compressive sensing techniques. ifferent from previous research efforts that generally rely on signal
Well each of the 46 passages to the microphone is unique and features subtly different ways of enabling sound to travel to the center,
because the unique 3d printed shapes create variations that can be picked up by the single sensor.
but the algorithm used for the sensor can almost always tell which direction it comes from.
The solar panels are connected to the battery (12v containing a charge controller and AC inverter) to chare it,
which houses control electronics and the video camera holder. According to the engineers, who published their breakthrough research in the journal HKIE Transactions
and conductive and resistive inksnto a single 3d printed object, opening up new possibilities for entirely 3d printed wearable devices, soft robots and electronics.
as well as some very recent 3d printed wearables that embed electronic components, current 3d printing technology struggles with multi-material integrationhat is, the seamless and precise transition between flexible materials, rigid materials,
#Scientists develop 3d printed Edge Detector that sorts sound waves If youe a naval captain using sonar, a gynaecologist conducting ultrasounds,
At the head of the 3d printed structure, four microphones measure the transmitted sound. To create an outline image of an object,
along with microphones, to a robot close to the object surface, which enabled them to systematically scan the entire surface
To address the problem, the team of researchers, led in part by Thomas Angelini, assistant professor in the department of mechanical and aerospace engineering at the University of Florida, took advantage of the physical properties of a commercially available granular hydrogel made up of 7 m-wide particles.
This high level of precision is why the researchers are confident in their 3d printer ability to contribute to the building of flexible electronics
Its applications range from medicine, advanced energy, electronics, aerospace design and many others. Despite these groundbreaking characteristics,
The company is a worldwide leader in the manufacurting and retailing of graphene and other advanced materials, with clients such as NASA, Ford motor, Apple, Samsung, Harvard and Stanford.
and will allow an ever widening variety of manufacturers to consider incorporating the extraordinary qualities of graphene in wide range of materials from batteries to consumer electronics to plastics. s the most sought-after and groundbreaking material,
Each finger is outfitted with resistive bend sensors that collect data points, just one from each finger.
They plan to add resolution with better flex sensors as well as multiple internal flex sensors to get independent data from different segments of each finger.
sensor network, and seamless process integration. The metal materials Liou and Sarangapani have been developing are Structural amorphous metals (SAMS),
NASA Spiderfab project intends to 3d print the underlying structures for such objects as antennas and solar panels.
While an antenna could improve communication, an optimally designed, large-scale solar array could power spacecraft, robots, drones, and more.
What makes this printer so efficient is its digital micromirroring array device chip (DMD), containing millions of micromirrors that function separately from one another to cast the desired microfish design onto photosensitive material,
will be able to serve as both a detoxification device and a toxin sensor too, and, hopefully,
while a specific inverter is included in the kit in case the standard Mars analogue mission battery pack cannot be transported on the plane due to varying airline regulations
Coulter and Ianakiev describe the DEAS as ssentially flexible capacitors sending low energy electric signals to the flexible tubular structure
Each surface layer of the 3d printed silicone was coated with graphite, capable of acting as a DEA electrode.
Using robust silicone material, DEA electrodes, and a modified 3d printing system, the research team was able to not only replicate the structure of the muscle,
Other applications include tissue engineering, flexible electronics, particle engineering, smart materials, and encapsulation technologies. In order to demonstrate the possibilities of this new 3d printing method,
while the second chip runs the various tests on the purified blood sample. It is the brainchild of a joint research team from Singapore Nanyang Technological University (NTU Singapore), SIMTECH and the Houston Methodist Hospital Research Institute.
who is also the Director of VIRTUS Center of Excellence in Integrated circuit Design at NTU School of Electrical and Electronic engineering n
they could be used widely in many applications including as exceptionally strong components in personal electronic devices, in space exploration vehicles,
which includes a photovoltaic cell using a high-quality semiconductor crystal similar to the ones for lasers
and LEDS operating under the focal point of an optical lens. The solar-to-electricity conversion efficiency of this CPV module is as high as 31 percent.
#Geometrically Encoded Magnetic Sensors (GEMS) for High-resolution Remote Biological Sensing To date, most efforts to image highly localized biochemical conditions such as abnormal ph
"As a result, they can get strong, distinctive signals from very small dimensions at substantial depths or in other locations impossible to probe with optically based sensors.
The novel devices, called geometrically encoded magnetic sensors (GEMS), are microengineered metal-gel sandwiches about 5 to 10 times smaller than a single red blood cell, one of the smallest human cells.
the scientists tested the sensors in solutions of varying ph, in solutions with ion concentration gradients,
And some potential applications of the sensors may not be biological at all. But a long-term goal is to improve our techniques to the point at
But preliminary estimates by the experimenters indicate that the sensors can be reduced substantially from their current size,
"The idea is that you could design different sensors to measure different things, effectively measuring a panel of potential biomarkers simultaneously, rather than just one,
"We think that these sensors can potentially be adapted to measure a variety of different biomarkers,
"Ron Goldfarb, leader of NIST's Magnetics Group, notes that,"the work on geometrically encoded magnetic sensors by Gary Zabow
in order to make these sensors widely available to researchers.""Note:**ph is a measure of the acidity or alkalinity of a substance,
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