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education News
F-VLEDs Reduce Heat Generation, Opening Way for Biomedical Applications
DAEJEON, South Korea, Feb. 5, 2018 — Flexible vertical micro-LEDs (f-VLEDs) have been developed using anisotropic conductive film (ACF)-based transfer and interconnection technology. Thermal reliability and lifetime was improved by reducing heat generation within the thin film LEDs. Using optogenetic stimulation of the f-VLEDs, the researchers succeeded in controlling behavior in mouse models. Researchers from the Korea Advanced Institute of Science and Technology (KAIST) fabricated a f-VLED array using simultaneous transfer
RF Reference Transmitted Over Fiber Optics Could Reduce Reliance on Atomic Clocks
SYDNEY, Feb. 2, 2018 — Researchers from a consortium of Australian institutions have demonstrated that a stable radio-frequency (RF) reference can be reliably transmitted more than 300 kilometers over a standard fiber optic telecommunications network, and used to...
Remote System Uses Video, Algorithms to Monitor Baby’s Heart Rate and Breathing
LOGAN, Utah, Feb. 1, 2018 — A technology that estimates heart rate using a video camera and software could lead to new applications in the medical equipment and consumer markets. But first, the technology will be used to help new parents rest easier by monitoring the heart and...
Magneto-Optical Q-Switched Laser Generates Unpolarized Light
TOYOHASHI, Japan, Feb. 1, 2018 — By using a technique — called q-switching — that utilizes short but high-powered pulse outputs, a laser one-tenth of the size of an American penny produced a beam that is 10 times more powerful than previously reported with larger lasers. The...
Image Sensor Imperfection Thwarts Cybercriminals’ Best Efforts
Jan 31, 2018 — The digital cameras in smartphones are built to be identical for each model of phone. However, manufacturing imperfections create tiny variations in each camera’s image sensors. These imperfections could prevent identity theft more safely than...
Ordering Discovery Could Help Overcome Limitations to InGaN Material Systems
BERLIN, Jan. 31, 2018 — An international research group has discovered the core mechanism that limits the indium (In) content in indium gallium nitride (InGaN) thin films, a key material for making blue LEDs. In an effort to push the indium content to the limit, scientists...
Phototherapy Treats Metastatic Disease Using Light-Sensitive Drugs
ST. LOUIS, Jan. 30, 2018 — A new study could expand the use of phototherapy for treating metastatic disease. Researchers have demonstrated the treatment of disseminated cancer by delivering photoactivatable drugs within tissues and inside cells in vivo. Light emitted as part...
Silicon Nanoblock Arrays Create Vivid Colors With Subwavelength Resolution
OSAKA, Japan, Jan. 30, 2018 — Researchers have demonstrated precise color control using monocrystalline silicon. Their work exploits the resonance of silicon materials to enable high reflectance and purity of color. A research team from Osaka University developed a silicon...
Multiwall Carbon Nanotube Rectennas Get an Efficiency Boost
ATLANTA, Jan. 29, 2018 — The research team that announced the first optical rectenna in 2015 reports that it has improved multiwall carbon nanotube (MWCNT) rectennas by creating and optimizing new diode structures that allow optical rectification with air-stable devices....
'Quantum Cocktail' Provides Insight Into Magnetic Storage
ZÜRICH, Jan. 29, 2018 — To speed up the writing and readout of magnetic information from storage devices, researchers are exploring the use of ultrashort laser pulses that can switch magnetic domains in solid-state materials. Although this route shows promise, the large...
Method Analyzes Encrypted FPV Data to Detect Unauthorized Drone Filming
BEER-SHEVA, Israel, Jan. 26, 2018 — Researchers have demonstrated a method for detecting whether a drone camera is illicitly recording a targeted subject or private home. Previous studies have shown methods for detecting whether a drone is nearby; however, according to the team, none...
Lifesaving Drones Transform Rescue Efforts
Jan 26, 2018 — In the event of natural disasters such as wildfires and volcanic eruptions, drones can go where manned planes can’t. In the aftermath of a catastrophe, critical air quality information is needed for deploying emergency services, evacuations...
Bright Light Therapy Improves Sleep in Cancer Patients
NEW YORK, Jan. 26, 2018 — Researchers investigated the effect of systematic light exposure on sleep in a mixed group of fatigued cancer survivors following primary cancer treatment. Results of the randomized controlled trial suggest that systematic bright light exposure...
Light-Splitting Greenhouse Film Could Improve Photosynthetic Efficiency
BOULDER, Colo., Jan. 25, 2018 — University of Colorado Boulder (CU Boulder) engineers have received a $2.45 million grant from the U.S. Department of Agriculture (USDA) to develop a scalable, cost-effective greenhouse material that splits sunlight into photosynthetically efficient...
Manufacturing Is Changing Dramatically. Who’s Ready to Work?
PITTSFIELD, Mass., Jan. 25, 2018 — U.S. manufacturing companies are expected to face a shortage of two million skilled workers by the year 2020. As a result, manufacturers and educators are looking for real, actionable ideas to train workers, reduce the shortfall and realize the...
Single Metalens Focuses all Colors of the Spectrum in one Point
CAMBRIDGE, Mass., Jan. 25, 2017 — Metalenses are flat surfaces that use nanostructures to focus light. These simple, flat surface lenses could replace bulky, curved lenses currently used in optical devices. Researchers at the Harvard John A. Paulson School of Engineering and Applied...
3D Printing Technique Replicates Biological Structures
LONDON, Jan. 25, 2017 — A 3D printing technique that replicates biological structures could be used for tissue regeneration and replica organs. Imperial College London researchers have developed the method using cryogenics and 3D printing techniques. Their technique...
Optically Based T-Sensor Could Be Used in Manufacturing, Biomedicine
SÃO PAULO, Jan. 24, 2018 — A temperature-sensor (T-sensor) has been developed that is capable of precisely measuring temperatures in a wide band — between 80 Kelvin (-190 °C) and 750 Kelvin (476 °C). The ultrasensitive sensor, created in the laboratory by researchers at the...
Nonplanar Design Could Increase Display Flexibility, Resolution and Imaging Speed
THUWAL, Saudi Arabia, Jan. 24, 2018 — A newly developed transistor architecture could boost the performance of display circuitry, leading to flexible ultrahigh definition displays. The new, nonplanar design uses vertical semiconductor fin-like structures, which are laterally...
Renishaw Microscope Used for Energy Storage Development at U. Liverpool
WOTTON-UNDER-EDGE, England, Jan. 24, 2018 — The inVia confocal Raman microscope from Renishaw PLC is being used by a team at the Stephenson Institute for Renewable Energy at the University of Liverpool to develop energy storage devices. The team, headed by Laurence Hardwick, is investigating...
All-Si Laser Could Advance Integrated Photonics
SHANGHAI, Jan. 22, 2018 — An optically pumped all-Si distributed feedback laser has been demonstrated using active layers of high-density Si nanocrystals. The new laser provides high optical gains, overcoming the low efficiency that has been historically exhibited in Si...
Cork Researchers Enable Robust Image Capture of Unattenuated Bright Targets With Smart Camera
CORK, Ireland, Jan. 22, 2018 — The Coded Access Optical Sensor (CAOS) smart camera has demonstrated enhanced imaging capabilities by imaging bright targets in the visible band. In early 2016, Professor Nabeel Riza and his team made the multi-spectrum camera technology work in...
MU Researchers Use Depth Cameras for Physical Therapy
COLUMBIA, Mo., Jan. 20, 2018 — A team of University of Missouri (MU) researchers has found that depth camera often associated with video game systems can provide a variety of health care providers with objective information to improve patient care. "In testing the system, we are...
Lithography, DNA Used to Build Structures That Could Lead to New Metamaterials
EVANSTON, Ill., Jan. 19, 2018 — Researchers have developed a technique for creating optical structures that could lead to new classes of optical materials and devices. Their technique combines a traditional fabrication method, top-down lithography with a new method, programmable...
Microscopic 3D Printing Could Build Structures Inside the Body
LAUSANNE, Switzerland, Jan. 17, 2018 — Researchers have used ultrathin optical fibers to create microscopic structures via laser-based 3D printing. The microstructures, which were created on a microscope slide, exhibited a 1.0-micron lateral and 21.5-micron axial printing resolution. The...
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September 2024
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