文章资讯
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- 2015-05-22 Scientists resolve spin puzzle
- Scientists at the University of York have helped to uncover the properties of defects in the atomic structure of magnetite, potentially opening the way for its use in producing more powerful electronic devices.
Magnetite, one of the oldest known examples of a magnetic material, has many technological applications including in spintronics where it can be used to help develop more efficient and higher capacity memory devices. - See Details
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- 2015-05-21 New 'electronic skin' for prosthetics, robotics detects pressure from different directions
- Touch can be a subtle sense, but it communicates quickly whether something in our hands is slipping, for example, so we can tighten our grip. For the first time, scientists report the development of a stretchable "electronic skin" closely modeled after our own that can detect not just pressure, but also what direction it's coming from. The study on the advance, which could have applications for prosthetics and robotics, appears in the journal ACS Nano.
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- 2015-05-21 Dutch launch 'intelligent bicycle' that warns of danger
- The Netherlands on Monday launched its first-ever "intelligent bicycle", fitted with an array of electronic devices to help bring down the high accident rate among elderly cyclists in the bicycle-mad country.
Developed for the government by the Netherlands Organisation for Applied Scientific Research (TNO), the intelligent bicycle prototype runs on electricity, and sports a forward-looking radar mounted below the handlebars and a camera in the rear mudguard. - See Details
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- 2015-05-21 Raise your home's IQ: smart gadgets take center stage at CES (Update)
- Imagine a world in which your garage door opens automatically as you pull into the driveway. The living room lights and heater turn on—perhaps the oven starts warming up, too. In the so-called "smart home," cars, appliances and other devices all have sensors and Internet connectivity to think and act for themselves, and make your life easier.
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- 2015-05-21 Electronics show a window into the 'Internet of Me'
- New technology is getting more personal. So personal, it is moving to connect and analyze our movements, our health, our brains and our everyday devices. Welcome to the so-called Internet of Me.
One of the major themes at the International Consumer Electronics Show in Las Vegas is connecting thousands of objects that people use each day—clothing, cars, light bulbs and home appliances. - See Details
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- 2015-05-21 Smart and pretty: Fashion designers spruce up smartwatches
- Smartwatches don't have to look ugly to be functional. Clothing and accessories designers are collaborating with engineers to produce computerized wristwatches that people will want to wear all day and night.
With Apple Inc. preparing to release a watch line that includes an 18-karat gold edition, rivals know they need to think beyond devices that look like miniature computers—with their rectangular screens and wristbands made of rubber-like materials. If the watches aren't attractive, the market won't grow beyond a small niche of users. - See Details
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- 2015-05-21 'Belty' offers tech solution to weighty problem
- Wearable tech can sometimes cut right to the chase: that's the case with "Belty," a smart belt unveiled at the Consumer Electronics Show which aims to help people lose weight.
With its embedded sensors, the belt will vibrate when it determines you have eaten too much, and also send a signal when you are sedentary for too long. - See Details
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- 2015-05-21 Team develops new superconducting hybrid crystals
- A new type of 'nanowire' crystals that fuses semiconducting and metallic materials on the atomic scale could lay the foundation for future semiconducting electronics. Researchers at the University of Copenhagen are behind the breakthrough, which has great potential.
The development and quality of extremely small electronic circuits are critical to how and how well future computers and other electronic devices will function. The new material, comprised of both a semiconductor and metal, has a special superconducting property at very low temperatures and could play a central role in the development of future electronics. - See Details
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- 2015-05-21 Beyond the trinkets: Voxel8 shows 3D electronics printer
- Beyond plastic angel paperweights and keychain elves, how complex can complex be in today's output from 3D printers? Voxel8 says they have the world's first multi-material 3D electronics printer, the nature of which can give the imagination a workout.
"Voxel8 3D printer can print a complete quadcopter, including the circuits," saidGeek.com's headline about the company announcement. Matthew Humphries ofGeek.com said the printer can create both the object and the circuitry required to power/control. - See Details
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- 2015-05-21 Amazon win highlights blurring TV/Internet line
- The Golden Globes triumph of Amazon's online series "Transparent" highlights the increasingly blurred lines between television and the Internet. "TV and the Internet are becoming one and the same, and in a few years that line will completely dissolve," said media analyst Jeff Bock of box officer tracker Exhibitor Relations.
"Transparent," which tells the story of a transgender father and his family, was crowned best comedy series at the Globes, a first for an online series, while its star Jeffrey Tambor won the best actor prize in the same category. - See Details
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- 2015-05-21 Review: CES shows Internet of Things' potential and challenges
- The Internet of Things may be in its early stages but it's evolving rapidly - and experiencing some difficult growing pains.
As expected, the Internet of Things was one of the dominant themes at the Consumer Electronics Show. Everyday devices packed with sensors and radios that allow them to collect and transmit data to other gadgets were everywhere. - See Details
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- 2015-05-20 Graphene multiplies the power of light
Could graphene turn light to electricity? Scientists have shown that graphene can convert a single photon into multiple electrons, showing much promise for future photovoltaic devices.
Graphene is a material that has gathered tremendous popularity in recent years, due to its extraordinary strength andlight weight. It can be generated by literally peeling it off from graphite, or by growing it on top of various materials, which makes its production cost-effective.- See Details
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- 2015-05-20 Graphene brings quantum effects to electronic circuits
Research by scientists attached to the EC's Graphene Flagship has revealed a superfluid phase in ultra-low temperature 2D materials, creating the potential for electronic devices which dissipate very little energy.
At the atomic and molecular scales, the world can be a very strange place, with everyday notions of temperature, energy and physical coherence thrown into disarray. With reality at the quantum level we must talk of statistical likelihood and probability rather than simple billiard ball cause and effect.
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- 2015-05-20 Electronic circuits with reconfigurable pathways closer to reality
- Multitasking circuits capable of reconfiguring themselves in real time and switching functions as the need arises—this is the promising application stemming from a discovery made at EPFL and published in Nature Nanotechnology. Other potential uses: miniaturizing our electronic devices and developing resilient circuits.
Will it be possible one day to reconfigure electronic microchips however we want, even when they are in use? A recent discovery by a team at EPFL suggests as much. The researchers have demonstrated that it is possible to create conductive pathways several atoms wide in a material, to move them around at will and even to make them disappear. - See Details
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- 2015-05-20 Graphene displays clear prospects for flexible electronics
- Published in the scientific journal Nature Materials, University of Manchester and University of Sheffield researchers show that new 2D 'designer materials' can be produced to create flexible, see-through and more efficient electronic devices.
The team, led by Nobel Laureate Sir Kostya Novoselov, made the breakthrough by creating LEDs which were engineered on an atomic level. - See Details
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- 2015-05-20 Researchers find that users do not get rid of their old technology when buying new and use more power
- A trio of researchers at the Rochester Institute of Technology has found that despite dramatically reduced power requirements for new electronic gadgets, the average American home consumes more power than ever—because consumers keep using the old-school technology devices, along with the new, adding to the total number of devices used. In their paper published in Environmental Science and Technology, Erinn Ryen, Callie Babbitt and Eric Williams describe how they looked at gadgets in the average American home as an ecosystem made up of electronic virtual organisms and what they found in doing so.
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- 2015-05-20 Electronics you can wrap around your finger
- Electronic devices have shrunk rapidly in the past decades, but most remain as stiff as the same sort of devices were in the 1950s—a drawback if you want to wrap your phone around your wrist when you go for a jog or fold your computer to fit in a pocket. Researchers from South Korea have taken a new step toward more bendable devices by manufacturing a thin film that keeps its useful electric and magnetic properties even when highly curved. The researchers describe the film in a paper published in the journal Applied Physics Letters.
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- 2015-05-20 Exotic states materialize with supercomputers
- Scientists used supercomputers to find a new class of materials that possess an exotic state of matter known as the quantum spin Hall effect. The researchers published their results in the journal Science in December 2014, where they propose a new type of transistor made from these materials.
The science team included Ju Li, Liang Fu, Xiaofeng Qian, and Junwei Liu, experts in topological phases of matter and two-dimensional materials research at the Massachusetts Institute of Technology (MIT). - See Details
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- 2015-05-20 Improved fire detection with new ultra-sensitive, ultraviolet light sensor
- A new study published today in Scientific Reports has discovered that a material traditionally used in ceramics, glass and paint, can be manipulated to produce an ultra-sensitive UV light sensor, paving the way for improved fire and gas detection.
Researchers at the University of Surrey's Advanced Technology Institute manipulated zinc oxide, producing nanowires from this readily available material to create a ultra-violet light detector which is 10,000 times more sensitive to UV light than a traditional zinc oxide detector. - See Details
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- 2015-05-20 Researchers develop new technique for making graphene competitor molybdenum disulfide
- Graphene, a single-atom-thick lattice of carbon atoms, is often touted as a replacement for silicon in electronic devices due to its extremely high conductivity and unbeatable thinness. But graphene is not the only two-dimensional material that could play such a role.
University of Pennsylvania researchers have made an advance in manufacturing one such material, molybdenum disulfide. By growing flakes of the material around "seeds" of molybdenum oxide, they have made it easier to control the size, thickness and location of the material. - See Details
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- 2015-05-20 Researchers test radiation-resistant spintronic material
- A team of researchers from the University of Michigan and Western Michigan University is exploring new materials that could yield higher computational speeds and lower power consumption, even in harsh environments.
Most modern electronic circuitry relies on controlling electronic charge within a circuit, but this control can easily be disrupted in the presence of radiation, interrupting information processing. Electronics that use spin-based logic, or spintronics, may offer an alternative that is robust even in radiation-filled environments. - See Details
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- 2015-05-19 Apple patent lets iPhone be part of VR reality display
- Apple on Tuesday was awarded a patent on a headset that could let iPhones be part of augmented or virtual reality displays.
The patent titled "Head Mounted Display Apparatus For Retaining A Portable Electronic Device With Display" depicts a large eyeglass-style frame into which a smartphone could be seated.
A smartphone would essentially become a screen set directly before the wearer's eyes, with the option of picture-in-picture if a person wants to watch what is happening around him or her. - See Details
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- 2015-05-19 Researchers build atomically thin gas and chemical sensors
- The relatively recent discovery of graphene, a two-dimensional layered material with unusual and attractive electronic, optical and thermal properties, led scientists to search for other atomically thin materials with unique properties.
Molybdenum disulfide (MoS2) has proved to be one of the most promising. Single-layer and few-layer molybdenum disulfide devices have been proposed for electronic, optoelectronic and energy applications. A team of researchers, led by engineers at the University of California, Riverside's Bourns College of Engineering, have developed another potential application: sensors. - See Details
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- 2015-05-19 Why your laptop battery won't kill you
- News on Tuesday that major U.S. airlines are no longer going to ship powerful lithium-ion batteries might lead some to fret about the safety of their personal electronic devices.
Those people can relax.
A kitchen grease fire or drunk driver is more likely to harm you than the battery powering your laptop, iPhone or Kindle. - See Details
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- 2015-05-19 Team develops ultrathin polymer insulators key to low-power soft electronics
- A group of researchers at the Korea Advanced Institute of Science and Technology (KAIST) developed a high-performance ultrathin polymeric insulator for field-effect transistors (FETs). The researchers used vaporized monomers to form polymeric films grown conformally on various surfaces including plastics to produce a versatile insulator that meets a wide range of requirements for next-generation electronic devices. Their research results were published online in Nature Materials on March 9th, 2015.
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- 2015-05-19 Thin cooling device for compact electronics
- Fujitsu Laboratories today announced the development of the world's first thin cooling device designed for small, thin electronic devices. Smartphones, tablets, and other similar mobile devices are increasingly multifunctional and fast. These spec improvements, however, have increased heat generated from internal components, and the overheating of localized parts in devices has become problematic.
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- 2015-05-19 A graphene solution for microwave interference
- Microwave communication is ubiquitous in the modern world, with electromagnetic waves in the tens of gigahertz range providing efficient transmission with wide bandwidth for data links between Earth-orbiting satellites and ground stations. Such ultra-high frequency wireless communication is now so common, with a resultant crowding of the spectral bands allocated to different communications channels, that interference and electromagnetic compatibility (EMC) are serious concerns.
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- 2015-05-19 Single-walled carbon nanotube composites show great promise for use in 'unconventional' computing
- As we approach the miniaturization limits of conventional electronics, alternatives to silicon-based transistors—the building blocks of the multitude of electronic devices we've come to rely on—are being hotly pursued.
Inspired by the way living organisms have evolved in nature to perform complex tasks with remarkable ease, a group of researchers from Durham University in the U.K. and the University of São Paulo-USP in Brazil is exploring similar "evolutionary" methods to create information processing devices. - See Details
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- 2015-05-19 New way to purify arrays of single-walled carbon nanotubes a step toward post-silicon circuits
- The exceptional properties of tiny molecular cylinders known as carbon nanotubes have tantalized researchers for years because of the possibility they could serve as a successors to silicon in laying the logic for smaller, faster and cheaper electronic devices.
First of all they are tiny—on the atomic scale and perhaps near the physical limit of how small you can shrink a single electronic switch. Like silicon, they can be semiconducting in nature, a fact that is essential for circuit boards, and they can undergo fast and highly controllable electrical switching. - See Details
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- 2015-05-19 Nanopillar fabrication to lead to more efficient electronics
- A University of Texas at Arlington engineering researcher will build nanoscale pillars that will lead to more energy-efficient transistors in electronic devices and gadgets.
Seong Jin Koh, an associate professor in the Materials Science & Engineering Department, has received a $300,000 National Science Foundation grant that could lead to a tenfold reduction in energy consumption of smart phones, laptops and tablets, which could result in an identical reduction in the frequency of battery charging for those devices. - See Details