#Stash App Brings $5 Investments, and Advice, to Newcomers to Trading The ebb and flow of the public markets gets a lot of attention these days,
just as gate voltages do in conventional three-terminal transistors. There are two keys to using molybdenum disulfide for generating current:
Switching lighting to LEDS over the next two decades reports the U s. Department of energy could save the country $250 billion in energy costs over that period reduce the electricity consumption for lighting by nearly one half
White LED bulbs are already on store shelves but the light is generally colder than the warm glow of traditional bulbs.
Another key to the success is a design that incorporates several small capacitors connected in parallel to ensure better cooling
and lower cost compared to fewer larger and more expensive brick type capacitors. The research group's first prototype a liquid-cooled all-silicon carbide traction drive inverter features 50 percent printed parts.
#Beyond LEDS: Brighter, new energy saving flat panel lights based on carbon nanotubes Even as the 2014 Nobel prize in Physics has enshrined light emitting diodes (LEDS) as the single most significant and disruptive energy-efficient lighting solution of today scientists
around the world continue unabated to search for the even-better-bulbs of tomorrow. Enter carbon electronics.
And they may enable a new generation of brighter low-power low-cost lighting devices that could challenge the dominance of light-emitting diodes (LEDS) in the future
--about a hundred times lower than that of an LED. In the journal Review of Scientific instruments from AIP publishing the researchers detail the fabrication
and optimization of the device which is based on a phosphor screen and single-walled carbon nanotubes as electrodes in a diode structure.
Our simple'diode'panel could obtain high brightness efficiency of 60 Lumen per Watt which holds excellent potential for a lighting device with low power consumption said Norihiro Shimoi the lead researcher and an associate professor of environmental studies at the Tohoku University.
For instance LEDS can produce 100s Lumen per Watt and OLEDS (organic LEDS) around 40. Although the device has a diode-like structure its light-emitting system is not based on a diode system
which are made from layers of semiconductors materials that act like a cross between a conductor and an insulator the electrical properties
and an anode with the improved phosphor screen in our diode structure obtained no flicker field emission current and good brightness homogeneity Shimoi said.
and amount of circuitry disruption indicating that a greater loss of stem cells led to a larger degree of disorganization in the olfactory bulb.
The study led to another important discovery about egg-cell development. Although it was known that developing egg cells go through a bottleneck period that decreases the number of mtdna molecules scientists didn't know how small
and technologies such as energy saving LED LIGHTS where dopants can affect color and atom movement can determine the failure modes.
#Revving up fluorescence for superfast LEDS Duke university researchers have made fluorescent molecules emit photons of light 1000 times faster than normal--setting a speed record
and making an important step toward realizing superfast light emitting diodes (LEDS) and quantum cryptography.
This year's Nobel prize in physics was awarded for the discovery of how to make blue LEDS allowing everything from more efficient light bulbs to video screens.
which LEDS can be turned on and off has limited their use as a light source in light-based telecommunications.
To make future light-based communications using LEDS practical researchers must get photon-emitting materials up to speed.
One of the applications we're targeting with this research is said ultrafast LEDS Maiken Mikkelsen an assistant professor of electrical and computer engineering and physics at Duke.
If we can precisely place molecules like this it could be used in many more applications than just fast LEDS said Akselrod.
In the first beam channel light-sensitive electronic components known as CCD line sensors record the entire spectrum of the sample.
A total of 72 passive and 13 active components (such as LEDS, DC-to-DC converters, memory chip, image sensor and image processor) had to be positioned within the module in an especially space-saving manner.
"By encapsulating the electronic components, the microcamera is now impervious to vibrations on uneven street surfaces."
and observed that repeated topical exposure to peanut allergens led to sensitization and a severe whole-body allergic reaction upon a second exposure.
It was this discovery that led to the two present studies which were published recently in Nature Chemical Biology and PNAS.
because a high density of transistors has many direct and indirect benefits for computation and signal processing.
or having the capability to design complex integrated devices. The team envisions an open community where designs can be shared via an open-source database.
The scientists found that controlling irrigation using data from moisture sensors led to substantial reductions in both production time and crop losses.
who led the new work. ut the way that it done opens a very interesting possibility.
All of those operations also share a single inductor the chip main electrical component which saves on circuit board space
and we really want to do all these tasks with inductor sharing and see which operational mode is the best.
the Joseph F. and Nancy P. Keithley Professor in Electrical engineering, use an inductor, which is a wire wound into a coil.
When a current passes through an inductor, it generates a magnetic field, which in turn resists any change in the current.
Throwing switches in the inductor path causes it to alternately charge and discharge, so that the current flowing through it continuously ramps up
however, the switches in the inductor path need to be thrown immediately; otherwise, current could begin to flow through the circuit in the wrong direction,
El-Damak and Chandrakasan use an electrical component called a capacitor, which can store electrical charge.
The higher the current, the more rapidly the capacitor fills. When it full, the circuit stops charging the inductor.
The rate at which the current drops off however, depends on the output voltage, whose regulation is the very purpose of the chip.
El-Damak and Chandrakasan thus equip their chip with a bank of capacitors of different sizes.
As the current drops, it charges a subset of those capacitors, whose selection is determined by the solar cell voltage.
Once again, when the capacitor fills, the switches in the inductor path are flipped. n this technology space,
there usually a trend to lower efficiency as the power gets lower, because there a fixed amount of energy that consumed by doing the work,
#Niobium Nanowire Yarns Make High-performance Supercapacitors Using yarns made from niobium nanowire, researchers at MIT have developed a new approach to making supercapacitors.
Wearable electronic devices for health and fitness monitoring are a rapidly growing area of consumer electronics; one of their biggest limitations is the capacity of their tiny batteries to deliver enough power to transmit data.
The key is a new approach to making supercapacitors devices that can store and release electrical power in such bursts,
as the electrodes in tiny supercapacitors (which are essentially pairs of electrically conducting fibers with an insulator between).
Nanotechnology researchers have been working to increase the performance of supercapacitors for the past decade. Among nanomaterials, carbon-based nanoparticles such as carbon nanotubes and graphene have shown promising results,
So an alternative is to go to a combination of a battery and a capacitor, Hunter says:
and the capacitor for short bursts of high power. Such a combination should be able to either increase the range of the device,
The new nanowire-based supercapacitor exceeds the performance of existing batteries, while occupying a very small volume. f youe got an Apple Watch and
Other groups have made similar supercapacitors using carbon nanotubes or other materials, but the niobium yarns are stronger and 100 times more conductive.
Overall, niobium-based supercapacitors can store up to five times as much power in a given volume as carbon nanotube versions.
onvincingly demonstrates the impressive performance of niobium-based fiber supercapacitors. The team also included Phd student Mehr Negar Mirvakili and professors Peter Englezos and John Madden, all from the University of British columbia s
and microcontrollers are rigid. But what if you could combine the autonomy and speed of a rigid robot with the adaptability and resiliency of a soft robot
The robot body transitions from soft to hard, reducing the stress where the rigid electronic components join the body
In the new study, King and his colleagues report that treatment with the drug led to dramatic improvement in six patients with moderate to severe eczema who had tried previously conventional therapies without success. During treatment all six
#Knitted Supercapacitors to Power Smart Shirts Researchers from Drexel University in collaboration with the U s. Naval academy, have invented a way to embed activated carbon particles into different types of yarn to form a knitted textile that can store
Last year teams from China and the United states demonstrated a fiber-like supercapacitor made from both graphene
At the time these fibers were said to obtain the highest volumetric energy density reported for carbon-based microscale supercapacitors (6. 3 microwatt-hours per cubic millimeter,
Researchers there have developed a new technique that makes it possible to produce a diode from a single molecule.
In research published in the journal Nature Nanotechnology, the researchers claim that they have not only produced a single-molecule diode,
but that it greatly outperforms all previous designs. ur new approach created a single-molecule diode that has a high rectification and a high ncurrent,
"Diodes are key elements in integrated circuits. They are two-terminal components with asymmetric conductance, which means that they keep current passing in only one direction.
But previous attempts, in which researchers looked to achieve asymmetric conductance by making the diodes asymmetric in design,
have been less than satisfactory. hile such asymmetric molecules do indeed display some diode-like properties, they are explained not effective
A well-designed diode should only allow current to flow in one directionhe ndirectionnd it should allow a lot of current to flow in that direction.
To overcome this poor current flow in single-molecule diodes, the Columbia researchers, in cooperation with colleagues at the University of California Berkeley, looked at putting the asymmetry in the area around the molecular junctionhere the molecule meets the metal electrode.
which is notably high for a single-molecule diode, according to Venkataraman. t amazing to be able to design a molecular circuit,
the researchers created several microwave Gaas devices, such as arrays of Gainp/Gaas heterojunction bipolar transistors, as well as circuits containing capacitors, RF inductors and Schottky diodes.
The performance of these flexible devices is exactly the same as that of rigid circuits
#Graphene Heating system Dramatically Reduces Home energy Costs Breakthroughs in energy generation using nanomaterialsike their enabling of better supercapacitors
and that led us to evaluate a wide range of heating materials and systems before we finally arrived at graphene. o meet the company third criteria,
and often led to damaging the surrounding chip. But graphene makes all the difference. The international team demonstrated heating the graphene-based filament to 2500 Degree celsius,
which predicts that the number of transistors on integrated circuits will double about every two years, causing an exponential growth in performance.
IBM researchers are trying to prop up Moore law using silicon-germanium transistor channels in effort to create a 7-nanometer chip within the next four years.
An international research team based at the University of Texas at Dallas initially targeted the new super fiber for artificial muscles and for capacitors
You have a fiber capacitor. his technology could be well-suited for rapid commercialization, said Raquel Ovalle-Robles, one of the paper authors,
Lasers could be far more energy-efficient than LEDS: While LED-based lighting produces up to about 150 lumens per watt of electricity,
but"the Li-Fi currently under development is based on LEDS,""Ning says. He suggests white-laser based Li-Fi could be 10 to 100 times faster than LED-based Li-Fi,
because the lasers can encode data much faster than white LEDS. In the future, the scientists plan to explore
and organic light-emitting diodes (OLEDS) L
#Google s Unified Privacy Policy Draws Threat Of $15m Fine In The netherlands The national data protection authority in The netherlands has warned Google that it could be fined up to $15 million
Transparency Leads to Trust Each year, GMI Ratings releases a list of the 100 Most Trustworthy Companies, inspired by the abuses that led to the financial collapse.
To date Chatgrape has raised around 440000 Euros led in part by angel investors and in part by the The Austrian Research Promotion Agency (FFG.
Suddenly, networking is not just about the next generation of ASIC technology. It now about innovating at the speed of software.
A Quick History lesson The steam-powered Spinning jenny, followed by the petroleum-powered version, led the first Industrial revolution.
Paying search engines for stimulating clicks that led to purchases was fine but most consumers take a more circuitous route to their final decisions.
It could grow simply by using excess capacity at existing LED manufacturing facilities. The company wouldn be possible without one key bit of new manufacturing technology,
The Biom T2 uses a battery to power a system of microprocessors sensors springs and actuators;
The sheets will contain organic LEDS, or OLEDSHE same kind of technology used in some ultrathin TVS and smartphones.
OLEDS could be used in large sheets, because organic light-emitting molecules can be deposited over large surfaces.
They also run cooler than LEDS, so they don require elaborate heat sinks, making a lighting structure simpler.
OLED lighting is 10 to 100 times more expensive than conventional lighting but as costs come down,
In recent weeks, researchers have announced advances that could greatly improve the efficiency of OLED lighting.
It does this via nanoparticles that ease the transition for light as it passes between the parts of an OLED device.
Konica-Minolta and OLED Works (a business formed from Kodak former OLED division) are both developing cheaper new manufacturing techniques.
as well as the Dutch company Philips, plan to scale up production of OLED lighting in the next year or two,
OLED lighting is expensive in part because manufacturers typically use equipment developed for making high-resolution displays,
says Michael Boroson, the chief technology officer of OLED Works. His company is reëngineering the equipment
This fall, Konica-Minolta will start full-scale production of OLED lights on flexible plastic sheets.
which should be faster and cheaper than making OLED lights in batches, as is done now.
Even with such advances, it will take years to bring costs low enough to make OLED lighting widely used.
OLED lamps cost as much as $9, 000 now. But, Philips aims to introduce OLED products by the beginning of 2017 that cost $600 to $1, 600.
Costs are expected to drop further as the scale of production increases. Fundamental research could also make OLED lighting more realistic.
OLED lighting blends red, green, and blue light, but the blue light is relatively inefficient.
Last week Stephen Forrest, a professor of materials science and engineering at the University of Michigan, published work on a more efficient,
LEDS produce a beautiful sheet of light, Forrest says. believe OLED lighting will be a very important lighting source in the future, perhaps a dominant one.
But there a big gap between what we can do now and what we need to get costs down
and even high cholesterol in its development pipeline and has three in human trials progress that led the pharmaceutical company Sanofi to make a $700 million investment in the company last winter.
So the screen in the Apple Watch is almost certainly an OLED display. Rather than the pixels being illuminated by a backlight,
Manufacturers can already make OLED displays flexible. They first laminate a sheet of plastic to glass and then deposit the materials for the pixels and the electronics on top of both.
and afterwards the plastic, together with display and electronic components, is lifted off the glass. Manufacturers have known how to do this for years.
Samsung showed off a fully FLEXIBLE OLED display in 2013. The tricky part is making sure the devices are durable.
OLED pixels can be destroyed by even trace amounts of water vapor and oxygen, so you have to seal the display within robust, high-quality, flexible materials.
along with a ring of several cheap near-infrared LEDS. By doing so, they essentially made each camera act as an infrared camera. computer with Microsoft image of person's face e kind of turned the camera on its head
The new designnown as a sequential displayould help LCDS close the energy efficiency gap with another type of display, the OLED.
OLEDS are used in some smartphones and TVS, but are more expensive to produce. Marc Mcconnaughey, CEO of Light Polymers, says the company materials are being evaluated by flat-panel display manufacturers.
Though it is no match for a conventional microprocessor at crunching numbers, the chip consumes significantly less power,
The chip uses the same basic components as today commercial chipsilicon transistors. But its transistors are configured to mimic the behavior of both neurons and the connectionsynapsesetween them.
The Synapse chip breaks with a design known as the Von neumann architecture that has underpinned computer chips for decades.
Although the new Synapse chip has more transistors than most desktop processors, or any chip IBM has made ever, with over five billion,
Server chips with similar numbers of transistors consume tens of watts of powerround 10,000 times more.
Versions were built that could power LEDS motion detectors, accelerometers, and touch-sensitive buttons. Adding Wi-fi capabilities makes the devices more practical.
A digital signal processor (which can be housed inside or outside the earbud) analyzes the data, removing oiselike skin movement
Because of its scratch-proof properties, it has long been used for making LEDS, sensors on missiles,
Whereas flash memory stores bits of information in the form of charge in transistors RRAM stores bits using resistance.
#How LEDS Are Set to Revolutionize Hi-tech Greenhouse Farming It won't come as a surprise to discover that consumers all over the developed world are increasingly demanding seasonal vegetables all year round even
One obvious answer is to convert greenhouses from the traditional incandescent lighting usually high pressure sodium lamps to more energy-efficient LEDS.
but the industry has been slow to make this change because of the high initial cost of LEDS.
These guys have compared the life-cycle costs of traditional high pressure sodium lamps against those of LEDS for greenhouse lighting.
They calculate that the cumulative cost of high pressure sodium lamps surpasses that of LEDS after just seven years
and that after 16 years the cumulative cost of high pressure sodium lamps is more than double the equivalent cost of LEDS.
Although high pressure sodium lamps are individually cheaper than LEDS they have to be changed every year compared to every 19 years for LEDS.
And of course LEDS use considerably less electricity wasting little as heat. But the most interesting part of Singh and co s analysis is in the potential of LEDS to change the way that vegetables are grown.
High pressure sodium lamps emit light across the entire visible part of the spectrum and well into the infrared where much energy is lost as heat.
By contrast LEDS can be adjusted to emit light in very specific parts of the spectrum. Plant physiologists have known long that chlorophyll absorbs mainly in the blue green
That s easy with LEDS of course but impossible with sodium lampsat the same time various researchers have shown that flowering
LEDS give farmers greater flexibility at a lower cost and a smaller environmental footprint. These are surely goals worth aiming for r
Microsoft s Quantum Search for The next Transistor Microsoft is making a significant investment in creating a practical version of the basic component needed to build a quantum computer,
Speaking at MIT Technology Review Digital Summit event in San francisco, Peter Lee likened the effort to research at Bell labs in the 1940s that produced the silicon transistor,
the basis of all computing today. his is our attempt to find the analogous device to the transistor,
Just like a transistor in a conventional computer, a qubit can switch between states that represent either a 1 or 0 of digital data.
The robots can work with glass, metal wood, and electronic components. In one demonstration they made a carbon truss structure with wires
and colored LEDS mixed in to serve as the lab Christmas tree. e can scale to many more robots at low cost,
Many electronic components are the right size to be handled by his microrobots, he says, and teams of them might prove a good way to lay them out onto circuit boards.
resistors and capacitors, could one day be printed in the comfort of one home, said Dr Kwok Sen Wai,
incorporates a video camera and a microprocessor. A custom algorithm is able to detect shadows and contrast differences caused by irregularities on normal daylight road conditions.
and hits the ELISA plate with a variety of light-emitting diodes. After the light is projected through each well, 96 individual plastic optical fibers in the attachment collect a multitude of images.
#CAP-XX Introduces Thinline Supercapacitors with Unique Nanotechnology Construction Examples include wearables (medical, fitness and health monitors, smart watches, drug delivery systems), portables (active
and copper terminals that contribute to thickness in its standard line supercapacitors. For comparison, CAP-XX's thinnest traditional single-cell supercapacitor is 1. 10mm.
CAP-XX supercapacitors benefit from a unique nanotechnology construction that stores electrical charge in engineered carbon electrodes on aluminium foil,
to minimize resistance and maximize capacitance (scroll down to CAP-XX Nanotechnology to view diagrams at www. cap-xx. com/products/photo-gallery).
Supercapacitors can handle peak power events, supporting batteries and energy harvesters configured to provide low-power current at maximum efficiency.
Supercapacitors also enable ultra-quick device charging and wireless power transfer, and provide the backup needed for graceful shutdown
CAP-XX Thinline supercapacitors support power requirements in Iot devices including wireless communication (Bluetooth Bluetooth Smart, Zigbee, Z-Wave, Ant, active RFID), electronic paper and OLED displays, haptic or tactile feedback, vibration alerts, GPS acquisition,
and injection or inhalation system delivery. The Thinline idea was born while working with a customer designing a disposable insulin pump."
CAP-XX Thinline supercapacitors are available in three footprints: Suggested retail price for all 0. 6mm cells is less than US$1 in large volumes.
"Our study shows that this material has exceptional energy storage capacity, enabling unprecedented performance in lithium-sulfur batteries and supercapacitors."
the Stanford team fabricated carbon-coated electrodes and installed them in lithium-sulfur batteries and supercapacitors."
"Supercapacitors are used energy storage devices widely in transportation and electronics because of their ultra-fast charging and discharging capability,
"For supercapacitors, the ideal carbon material has a high surface area for storing electrical charges, high conductivity for transporting electrons
"In the experiment, a current was applied to supercapacitors equipped with designer-carbon electrodes. The results were dramatic.
Electrical conductivity improved threefold compared to supercapacitor electrodes made of conventional activated carbon.""We also found that our designer carbon improved the rate of power delivery and the stability of the electrodes,"Bao added.
#Fujifilm and imec Develop Full-Color Organic light-emitting diodes Organic EL displays are used increasingly for televisions, mobile devices including smartphones as well as wearable devices.
In the latest achievement, Fujifilm and imec produced full-color OLEDS with the photoresist technology for organic semiconductors
to create full-color OLEDS. An OLED array of 40 x 40 dots at the resolution of 640ppi was realized
and illuminated with UV rays to confirm that red, green and blue dots separately emitted light.
An example would be creating an OLED array that adds a fourth color to red
as well as developing previously-unseen devices such as a new sensors that integrate OLED with the organic photodetector.
so that the integrated devices can be addressed and used to stimulate or record neural activity.""These type of things have never been done before, from both a fundamental neuroscience and medical perspective,
#Nanoparticles Arrest Destruction of Beta Cells and Avoid Diabetes Development This work led to more studies with the support of the Spanish Government, Catalan Government and private patrons with a keen interest in it.
single-chip MEMS+ASIC devices that are cost effective, while consuming very little power and offering very high performance.
It comes ready-to-use with the required decoupling capacitor integrated into the board. It is available for purchase online at Mouser Electronics.
#New Method to See Inside Supercapacitors at the Atomic Level By using a combination of nuclear magnetic resonance (NMR) spectroscopy
the researchers were able to visualise how ions move around in a supercapacitor. They found that
Supercapacitors are used in applications where quick charging and power delivery are important, such as regenerative braking in trains and buses, elevators and cranes.
a supercapacitor is useful when a short burst of power is required, such as when overtaking another car, with the battery providing the steady power for highway driving. upercapacitors perform a similar function to batteries
A supercapacitor is similar to a battery in that it can generate and store electric current, but unlike a battery, the storage and release of energy does not involve chemical reactions:
instead, positive and negative electrolyte ions simply tickto the surfaces of the electrodes when the supercapacitor is being charged.
When a supercapacitor is being discharged to power a device, the ions can easily opoff the surface
The reason why supercapacitors charge and discharge so much faster is that the tickingand oppingprocesses happen much faster than the chemical reactions at work in a battery. o increase the area for ions to stick to,
In the new study, the researchers used NMR to look inside functioning supercapacitor devices to see how they charge and store energy.
what happens inside a supercapacitor while it charges. n a battery, the two electrodes are different materials,
Griffin. n a supercapacitor, the two electrodes are made of the same porous carbon sponge, so you think the same process would take place at both
and the positive ions are attracted to the surface as the supercapacitor charges. But in the positive electrode, an ion xchangehappens,
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