In using Affdex Affectiva recruits participants to watch advertisements in front of their computer webcams tablets and smartphones.
But if a smirk subtle asymmetric lip curls separate from smiles comes at a moment when information appears on the screen it may indicate skepticism or doubt.
and can avoid tracking any other movement on screen. One of Affectiva s long-term goals is to usher in a mood-aware Internet to improve users experiences.
#Making the cut Diode lasers used in laser pointers barcode scanners DVD players and other low-power applications are perhaps the most efficient compact and low-cost lasers available.
At the core of the Terablade is a power-scaling technique known as wavelength beam combining (WBC
But it could also lead to benefits such as smaller batteries and less hardware which would lower costs for manufacturers and consumers.
Courtesy of Witricity Corp. Full Screen The Witricity technology can charge an electric car with the vehicle parked about a foot above the transmitting pad.
Courtesy of Witricity Corp. Full Screen Stronger couplingsimilar wireless charging technologies have been around for some time. For instance traditional induction charging
The result of this screen, Jaws, retained its red-light sensitivity but had a much stronger photocurrent enough to shut down neural activity. his exemplifies how the genomic diversity of the natural world can yield powerful reagents that can be of use in biology and neuroscience,
the researchers were able to shut down neuronal activity in the mouse brain with a light source outside the animal head.
Roska and Busskamp tested the Jaws protein in the mouse retina and found that it more closely resembled the eye natural opsins
#Researchers unveil experimental 36-core chip The more cores or processing units a computer chip has,
the bigger the problem of communication between cores becomes. For years, Li-Shiuan Peh, the Singapore Research Professor of Electrical engineering and Computer science at MIT, has argued that the massively multicore chips of the future will need to resemble little Internets,
where each core has associated an router, and data travels between cores in packets of fixed size.
This week, at the International Symposium on Computer architecture, Peh group unveiled a 36-core chip that features just such a etwork-on-Chip in addition to implementing many of the group earlier ideas
it also solves one of the problems that has bedeviled previous attempts to design networks-on-chip:
In today chips, all the cores typically somewhere between two and six are connected by a single wire,
. When two cores need to communicate, theye granted exclusive access to the bus. But that approach won work as the core count mounts:
Cores will spend all their time waiting for the bus to free up, rather than performing computations.
In a network-on-chip, each core is connected only to those immediately adjacent to it. ou can reach your neighbors really quickly,
Every core on a chip has its own cache a local, high-speed memory bank in which it stores frequently used data.
if another core needs the data before it been shipped? Most chips address this question with a protocol called noopy,
When a core needs a particular chunk of data, it broadcasts a request to all the other cores,
If all the cores share a bus, then when one of them receives a data request,
Similarly, when the requesting core gets data back, it knows that it the most recent version of the data.
and packets will frequently arrive at different cores in different sequences. The implicit ordering that the snoopy protocol relies on breaks down.
All they can do is declare that their associated cores have sent requests for data over the main network.
Groups of declarations reach the routers associated with the cores at discrete intervals intervals corresponding to the time it takes to pass from one end of the shadow network to another.
and by which other cores. The requests themselves may still take a while to arrive,
During each interval, the chip 36 cores are given different, hierarchical priorities. Say, for instance, that during one interval,
both core 1 and core 10 issue requests, but core 1 has a higher priority.
Core 32 router may receive core 10 request well before it receives core 1 . But it will hold it until it passed along 1. This hierarchical ordering simulates the chronological ordering of requests sent over a bus,
so the snoopy protocol still works. The hierarchy is shuffled during every interval, however, to ensure that in the long run,
all the cores receive equal weight. Cache coherence in multicore chips s a big problem, and it one that gets larger all the time,
modified to run on 36 cores, and evaluate the performance of real applications, to determine the accuracy of the group theoretical projections.
At that point, she plans to release the blueprints for the chip, written in the hardware description language Verilog,
KGS Buildingsfoundation The KGS cofounders met as participants in the MIT entry for the 2007 Solar Decathlon an annual competition where college teams build small-scale, solar-powered homes to display at the National Mall
flat-screen TVS, gaming consoles, laptops, electric bikes, and air conditioners, while reducing the cost of manufacturing.
#Glasses-free 3-D projector Over the past three years, researchers in the Camera Culture group at the MIT Media Lab have refined steadily a design for a glasses-free, multiperspective, 3-D video screen,
which are like tiny liquid-crystal displays (LCDS) positioned between the light source and the lens. Patterns of light and dark on the first modulator effectively turn it into a bank of slightly angled light emitters that is,
The screen combines two lenticular lenses the type of striated transparent sheets used to create crude 3-D effects in,
Exploiting redundancy For every frame of video, each modulator displays six different patterns which together produce eight different viewing angles:
But like the researchersprototype monitors, the projector takes advantage of the fact that, as you move around an object,
One of the problems with LCD screens is that they don enable rue black A little light always leaks through even the darkest regions of the display. ormally you have contrast of,
is the prototype screen. here is this invariant of optical systems that says that if you take the area of the plane
We couldn figure out a way around that. hey came up with a screen that instead of stretching the image
Think of it as a reverse crane says Glass who invented the core BAT technology. A crane has a nice stationary component
The MIT team designed their liposomes to carry doxorubicin inside the particle core, with erlotinib embedded in the outer layer.
we need ways to monitor neural function deep in the brain with spatial, temporal, and functional precision, he says.
An area known as the nucleus accumbens core, known to be one of the main targets of dopamine from the VTA,
But the core technology began as a bit of aerospace ingenuity and has since found its way back to space.
The researchers also believe this test could be exploited to screen for new drugs that inhibit
and to monitor whether treatments are having the desired effect according to the researchers who describe the device in the Proceedings of the National Academy of Sciences the week of April 21.
Several of these prototype designs with exposed mechanical parts and looping wires are on permanent display at the MIT Media Lab. Still today Herr can remember stepping into the group s first bionic leg prototype and then back
One could just bolt these pieces together to produce a humanoid hardware platform Herr says.
and privacy filters for display screens. The work is described in a paper appearing this week in the journal Science,
The filtering could also be applied to display screens on phones or computers so only those viewing from directly in front could see them.
the researchers sorted more than 350 mouse retinal neurons into 15 types, including six that were unidentified previously.
He used the lab s 3-D printer to build the mold in which he cast the fish s tail
It would be impractical to do this kind of large-scale protein screen in patients, but it could be possible to test samples for certain proteins using antibodies,
#Cochlear implants with no exterior hardware Cochlear implants medical devices that electrically stimulate the auditory nerve have granted at least limited hearing to hundreds of thousands of people worldwide who otherwise would be totally deaf.
low-power signal processing chip that could lead to a cochlear implant that requires no external hardware.
Lowering the power requirements of the converter chip was the key to dispensing with the skull-mounted hardware.
and found a low-power way to implement it in hardware. Two of their collaborators at MEEI Konstantina Stankovic, an ear surgeon who co-led the study with Chandrakasan,
and implements those changes into a running Linux kernel an operating system s core data-processing component.
All the hardware it requires can already be found in commercial lidar systems; the new system just deploys that hardware in a manner more in tune with the physics of low light-level imaging and natural scenes.
Count the photonsas Ahmed Kirmani a graduate student in MIT s Department of Electrical engineering and Computer science and lead author on the new paper explains the very idea of forming an image with only a single photon detected at each pixel location is counterintuitive.
The technique known as raster scanning is how old cathode ray tube-tube televisions produced images illuminating one phosphor dot on the screen at a time.
This allows the team to use inexpensive hardware off-the-shelf light-emitting diodes (LEDS) can strobe at nanosecond periods,
They are now studying mouse models of colon and ovarian cancer. The research was funded by the Austrian Science Fund the National institutes of health Janssen Pharmaceuticals Inc. the Koch Institute MIT s Center for Environmental Health Sciences the Volkswagenstiftung the Deutsche Forschungsgemeinschaft the German
We think that in this mouse model we may have some kind of indication that there s a disorganized thinking process going on says Junghyup Suh a research scientist at the Picower Institute
This mutant mouse doesn t seem to have that kind of replay of a previous experience.
when a person (or mouse) is resting between goal-oriented tasks. When the brain is focusing on a specific goal
In previous studies using mouse models of fragile X, Bear and others discovered that the loss of this gene results in exaggerated protein synthesis at synapses, the specialized sites of communication between neurons.
the researchers used a mouse model of 16p11.2 microdeletion, created by Alea Mills at Cold Spring Harbor Laboratory.
biochemical, and behavioral analyses, the MIT team compared this 16p11.2 mouse with what they already had established in the fragile X mouse.
Synaptic protein synthesis was disrupted indeed in the hippocampus, a part of the brain important for memory formation.
Not just finding the culprits These early innovations to the hardware have nabled Essess to have this large-scale,
was finding how closely coupled the hardware was to the software. his is truly mechatronic,
he says. small change to the hardware could have profound effects on the software. You may say,
The closest 3-D printers however, were at the Singapore University of Technology and Design (SUTD.
and learn to perfect 3-D printing. Ten months ago, the Golden West Foundation completed its first complete set of 3-D-printed models, ready for use in training.
Golden West is receiving orders from around the world for models made on 3-D printers set up by Golden West in Phnom penh.
recruiting a core team of engineers and establishing its first market instead of focusing on technical challenges. he particulars of the technology are usually not the primary areas of focus in VMS,
six-lensed camera that pulls raw images from its lenses simultaneously into one processor. This reduces complexity
which are needed for brief transmissions of data from wearable devices such as heart-rate monitors, computers, or smartphones, the researchers say.
They are taking a closer look at inexpensive catalysts that can help encourage the breakdown of large hydrocarbons
Nanoparticles made from these polymers have a hydrophobic core and a hydrophilic shell. Due to molecular-scale forces
BPA, another endocrine-disrupting synthetic compound widely used in plastic bottles and other resinous consumer goods, from thermal printing paper samples;
Put together in sequence these p-n junctions form transistors which can in turn be combined into integrated circuits microchips and processors.
This method is analogous to half-toning used in ink-based printing and results in a broad color gamut comments Yang.
Researchers use aluminum nanostructures for photorealistic printing of plasmonic color palettes More information: Tan S. J. Zhang L. Zhu D. Goh X. M. Wang Y. M. et al.
Plasmonic color palettes for photorealistic printing with aluminum nanostructures. Nano Letters 14 4023#4029 (2014.
which consist of a core that glows blue when struck by near-infrared light, and an outer fabric of porphyrin-phospholipids (Pop) that wraps around the core.
Credit: Jonathan Lovell Differences like these mean doctors can get a much clearer picture of
and an outer fabric of porphyrin-phospholipids (Pop) that wraps around the core. Each part has unique characteristics that make it ideal for certain types of imaging.
The core, initially designed for upconversion imaging, is made from sodium, ytterbium, fluorine, yttrium and thulium.
""Another advantage of this core/shell imaging contrast agent is that it could enable biomedical imaging at multiple scales, from single-molecule to cell imaging,
#High-resolution patterns of quantum dots with e-jet printing A team of 17 materials science and engineering researchers from the University of Illinois at Urbana#Champaign and Erciyes University in Turkey have authored High-resolution Patterns of Quantum dots
Are formed by Electrohydrodynamic Jet Printing for Light-emitting diodes. Their paper was published in Nano Letters an ACS journal.
and operating conditions that allow for high-resolution printing of layers of quantum dots with precise control over thickness and submicron lateral resolution and capabilities for use as active layers of QD light-emitting diodes.
The thickness can be controlled through a combination of printing parameters including the size of the nozzle the stage speed ink composition and voltage bias.
Their work on high-resolution patterns of quantum dots is of interest as it shows that advanced techniques in e-jet printing offer powerful capabilities in patterning quantum dot materials from solution inks over large areas.
E-jet printing refers to a technique called electrohydrodynamic jet described as a micro/nanomanufacturing process that uses an electric field to induce fluid jet printing through micro/nanoscale nozzles.
The resolution of conventional ink jet-printers printers is limited. For the past seven years she said Rogers has been developing the electrohydrodynamic jet printing method.
This kind of printer works by pulling ink droplets out of the nozzle rather than pushing them allowing for smaller droplets.
An electric field at the nozzle opening causes ions to form on the meniscus of the ink droplet.
Then a tiny droplet shears off and lands on the printing surface. A computer program controls the printer by directing the movement of the substrate
and varying the voltage at the nozzle to print a given pattern. Dot line square and complex images as QD patterns are possible the researchers said with tunable dimensions and thickness.
They wrote that these arrays as well as those constructed with multiple different QD materials directly patterned/stacked by e-jet printing can be utilized as photoluminescent and electroluminescent layers.
Writing in IEEE Spectrum on Monday Prachi Patel similarly made note that Quantum dots (QDS) are light-emitting semiconductor nanocrystals that used in light-emitting diodes (LEDS) hold the promise of brighter faster displays.
In the IEEE story headlined High-resolution Printing of Quantum dots For Vibrant Inexpensive Displays Patel said these researchers repurposed a printing method which they devised for other applications.
Inkjet printers usually have a few hundred nozzles said Patel. The difficulty with the e-jet printing method is that the electric field at one nozzle affects the fields of neighboring nozzles.
They are trying to figure out how to isolate nozzles in order to eliminate that crosstalk. Explore further:
High-resolution Patterns of Quantum dots Formed by Electrohydrodynamic Jet Printing for Light-emitting diodes Nano Lett. Article ASAP.
and operating conditions that allow for high-resolution printing of layers of quantum dots (QDS) with precise control over thickness and submicron lateral resolution and capabilities for use as active layers of QD light-emitting diodes (LEDS).
The shapes and thicknesses of the QD patterns exhibit systematic dependence on the dimensions of the printing nozzle and the ink composition in ways that allow nearly arbitrary systematic control when exploited in a fully automated printing tool.
Sequential printing of different types of QDS in a multilayer stack or in an interdigitated geometry provides strategies for continuous tuning of the effective overall emission wavelengths of the resulting QD LEDS.
which is entitled"Colloidal Nanoparticles as Catalysts and Catalyst Precursors for Nitrite Hydrogenation"on Thursday 15 january a
so they could also be used to make flexible displays and electronics that can stretch and bend, allowing you to integrate electronics into new places like clothing,
In this study researchers exposed cultured laboratory mouse cells resembling the arterial wall cells to NPS of silicon dioxide
and active electronics via 3-D printing (Phys. org) As part of a project demonstrating new 3-D printing techniques Princeton researchers have embedded tiny light-emitting diodes into a standard contact lens
Kong the lead author of the Oct 31 article describing the current work in the journal Nano Letters said that the contact lens project on the other hand involved the printing of active electronics using diverse materials.
Mcalpine said that one of 3-D printing's greatest strengths is its ability to create electronics in complex forms.
and then stacks them into three dimensions 3-D printers can create vertical structures as easily as horizontal ones.
To conduct the research the team built a new type of 3-D printer that Mcalpine described as somewhere between off-the-shelf and really fancy.
and build the new printer which Mcalpine estimated cost in the neighborhood of $20000. Mcalpine said that he does not envision 3-D printing replacing traditional manufacturing in electronics any time soon;
instead they are complementary technologies with very different strengths. Traditional manufacturing which uses lithography to create electronic components is a fast and efficient way to make multiple copies with a very high reliability.
Manufacturers are using 3-D printing which is slow but easy to change and customize to create molds and patterns for rapid prototyping.
Trying to print a cellphone is probably not the way to go Mcalpine said It is customization that gives the power to 3-D printing.
In this case the researchers were able to custom 3-D print electronics on a contact lens by first scanning the lens and feeding the geometric information back into the printer.
The new technique could also be used to create nanoscale inkjet printers for printing electronics or biological cells or to create antennas or photonic components.
The paper Sculpting Asymmetric Hollow-Core Three-dimensional Nanostructures Using Colloidal Particles was published online Dec 8 in the journal Small l
Heterostructured nanoparticles can be used as catalysts and in advanced energy conversion and storage systems. Typically these nanoparticles are created from tiny seeds of one material on top of
Initially the gold covered the platinum seed's surface uniformly creating a type of nanoparticle known as core-shell.
The mismatch can be handled by the first two layers of gold atoms creating the core-shell effect
The core of the nanothreads that Badding's team made is a long thin strand of carbon atoms arranged just like the fundamental unit of a diamond's structure zigzag cyclohexane rings of six carbon atoms bound together in
and to link up in a highly ordered chain of single-file carbon tetrahedrons forming these diamond-core nanothreads.
The resulting diamond-core nanothread is surrounded by a halo of hydrogen atoms. During the compression process the scientists report the flat benzene molecules stack together bend
so that when we release the pressure very slowly an orderly polymerization reaction happens that forms the diamond-core nanothread.
The nanothread also may be the first member of a new class of diamond-like nanomaterials based on a strong tetrahedral core.
You can attach all kinds of other atoms around a core of carbon and hydrogen.
which display processor memory and energy devices are integrated. The high temperature processes essential for high performance electronic devices have restricted severely the development of flexible electronics because of the fundamental thermal instabilities of polymer materials.
The transferred device successfully demonstrates fully-functional random access memory operation on flexible substrates even under severe bending.
The ILLO process can be applied to diverse flexible electronics such as driving circuits for displays and inorganic-based energy devices such as battery solar cell and self-powered devices that require high temperature processes s
Inorganic#Organic Hybrid Nanoprobe for NIR-Excited Imaging of Hydrogen sulfide in Cell Cultures and Inflammation in a Mouse Model.
Scientists have developed now a fast low-cost way of making these sensors by directly printing conductive ink on paper.
Metal ink could ease the way toward flexible electronic books displays More information: Direct Writing on Paper of Foldable Capacitive Touch Pads with Silver nanowire Inks ACS Appl.
it will probably be thanks to MIT spinout QD Vision, a pioneer of quantum dot television displays.
Last June, Sony used QD Vision product, called Color IQ, in millions of its Bravia riluminostelevisions, marking the first-ever commercial quantum dot display.
these displays will be olling out to the rest of the world. Replacing the bulb In conventional LCD TVS
and green filters to produce the colors on the screen. But this actually requires phosphors to convert a blue light to white;
and displays only reach about 70 to 80 percent of the National Television Standard Committee color gamut.
with greater power efficiency than any other technology. he value proposition is that you are not changing the display,
and yet the entire display looks much better. The colors are much more vivid known as much more saturated allowing you to generate a much more believable image,
Green from radle to gravewhile QD Vision aims to bring consumers more color-saturated displays,
which replaces phosphor in displays the company developed a much greener synthesis, according to the EPA.
Other technologies, called organic light-emitting diode (OLED) displays, use an organic compound to reach upward of 100 percent of the color gamut
Lighting to displays, and back QD Vision technology began at MIT more than a decade ago.
quantum dot displays. aking a transition like that from lighting to displays tests the nerves of folks involved, from top to bottom,
Pooling all resources into displays, the company eventually caught the eye of Sony, and last year became the first to market with a quantum dot display.
Today, QD Vision remains one of only two quantum dot display companies that have seen their products go to market.
Now, with a sharp rise in commercial use, quantum dot technologies are positioned to penetrate the display industry
Coe-Sullivan says. Along with Color IQ-powered LCD TVS, Amazon released a quantum dot Kindle last year,
and computer screens may seem worlds apart but they're not. When associate professor Qi Hua Fan of the electrical engineering and computer science department set out to make a less expensive supercapacitor for storing renewable energy he developed a new plasma technology that will streamline the production of display screens.
For his work on thin film and plasma technologies Fan was named researcher of the year for the Jerome J. Lohr College of Engineering.
His research focuses on nanostructured materials used for photovoltaics energy storage and displays. Last spring Fan received a proof-of-concept grant from the Department of energy through the North Central Regional Sun Grant Center to determine
Applied Nanofilms and Wintek a company that makes flat panel displays for notebooks and touch screens in Ann arbor Michigan provided matching funds.
Through this project Fan developed a faster way of treating the biochar particles using a new technology called plasma activation.
The technique that treats biochar electrodes for supercapacitors can also be used in making displays explained Fan who was a research scientist at Wintek more than 10 years ago.
and carbon thin films for the company's displays. Plasma processing is a very critical technology in modern optoelectronic materials
The high-energy plasma can deposit highly transparent and conductive thin films create high quality semiconductors and pattern micro-or nanoscale devices thus making the display images brighter and clearer.
eliminating adhesion issues that plagued the transfer of platinum catalysts to common electrodes like transparent conducting oxide.
or computer screen that are produced solely by combinations of red, green and blue pixels. The yellows, oranges and purples those displays make,
however, are a trick of perception, not of physics. Red and blue light are experienced simply simultaneously,
the nanowire core.""By engineering the structure so that light is contained mostly within the cadmium sulfide rather than at the interface between it and the silver shell,
In fuel cells these nanowire arrays can be used to lower production expenses by relying on more cost-efficient catalysts.
or outperform the current use of platinum and show that these nanowire arrays are better catalysts for the oxygen reduction reactions in the cells says Dr. Manashi Nath assistant professor of chemistry at Missouri S&t.
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