as if an equalizer with different settings were affecting the sound in each slice, explains senior author Steven Cummer, an electrical engineer at Duke university in Durham, North carolina a
a method the company calls digital decibel equalizer technology normalizes the volume at a safe level.
but these and other nonmetallic waveguides are constrained by pesky physical laws that require critical dimensions to be at least half the wavelength of the light in size;
when the scientists put the membrane into the beam of a scanning electron microscope, it folded.
who is the first author of the report. hen we scrutinised the hybrid gels under a scanning electron microscope (SEM),
so you could conceivably manufacture millions of systems such as microscopes or cameras at a time. een under a scanning electron microscope,
Terahertz waves have a much higher frequency and therefore more potential bandwidth. Scientists and engineers have begun only recently exploring the potential of terahertz waves
In this case, the antenna is made from two metal plates placed in parallel to form a waveguide.
As terahertz waves travel down the waveguide, some of the radiation leaks out of the slit.
it possible to adjust the spectrum bandwidth that can be allocated to each channel. That could be especially useful
if one user suddenly needs a ton of bandwidth, you can take it from others on the network who don need as much just by changing the plate spacing at the right location,
These soft waveguides are lined with reflective gold; as the silicone is stretched, cracks develop in the reflective layer,
Pioneering improvements to electron microscopes pave the way for the creation of a detailed map of the how these diseases develop,
and examining its shape in the electron microscope powerful device used to study protein structures, and a specialty of co-author Huilin Li, a molecular biologist at Brookhaven National Laboratory and Stony Brook University.
proteins like insulin or the blood cell-booster erythropoietin, are made inside a bacterium or other cell.
or making it possible to use one where two were needed before (see he Clever Circuit That Doubles Bandwidth.
It's also supposed to be easier for Google to display on low-bandwidth connections:
Two stretched versions of shuttle solid rocket boosters also will help lift the SLS rocket early in flight, for at least the first two launches,
These attacks leverage a technique that amplifies the traffic attackers generate through hijacking computers'bandwidth,
They then used an electron microscope at Brookhaven to pin down the exact structures at each targeted moment in a kind of molecular time-lapse.
At the core of this development is wide bandgap material made of silicon carbide with qualities superior to standard semiconductor materials.
Wide bandgap technology enables devices to perform more efficiently at a greater range of temperatures than conventional semiconductor materials said ORNL's Madhu Chinthavali who led the Power Electronics and Electric Machinery Group on this project.
Specific advantages of wide bandgap devices include: higher inherent reliability; higher overall efficiency; higher frequency operation;
and Electronics Engineers Workshop on Wide Bandgap Power Devices and Applications in Knoxville were Curt Ayers Steven Campbell Randy Wiles and Burak Ozpineci.
In the study the researchers used a scanning transmission electron microscope to observe the diffusion processes of cerium and manganese dopant atoms.
Only skin deepthe researchers'detailed imaging with a transmission electron microscope and atomistic modeling revealed that
To look at the structure with an electron microscope the research team turned to Jing Tao a researcher at Brookhaven National Laboratory.
When the researchers used a scanning electron microscope (SEM) to examine the deposits, they saw clear evidence of a phase explosion--a mixture of liquid and vaporized particles thrown out by the laser impact.
This scanning electron microscope image shows the network of conductive nanoribbons in Rice university's high-density graphene nanoribbon film.
This scanning electron microscope image shows a closeup of the nanoribbon network in Rice university's high-density graphene nanoribbon film.
and the reaction time, scientists can generate a nearly unlimited number of dots with differences in an electronic property known as bandgap,
and to encourage proposals for demonstrations of advanced, high-bandwidth applications. With all the resources marshaled behind U s. Ignite,
These are made up of microelectromechanical accelerometers attached to inexpensive off-the-shelf cellphone equipment that manages data gathering
but it fit the limited bandwidth of old analog copper phone lines. In 1988, the International Telecommunication Union approved the G. 722 standard for HD Voice,
The broader bandwidth of the Internet allowed Skype and some other Voip services to carry 7, 000-Hz HD Voice,
The Wifi router will be part of a P2p-based network that is supposed to make video stream faster while reducing Youku Tudou bandwidth usage.
That because the big idea behind Helium is to use unlicensed wireless bandwidth to transmit small amounts of data from various connected device
Our phones are full of sensors from the GPS to the accelerometer to the compass, all of them feeding data to apps and to the cloud.
hey developed a smart employee badge with a microphone, accelerometer, bluetooth connection and other tools typically found in a smart phone.
The accelerometer can compare the gait and balance of someone walk against a healthy person speed and posture.
He s also thinking about adding other sensors such as an accelerometer or thermometer to the battery o
Even some of the area biggest technology boosters are appalled. ou have people begging in the street on University avenue Palo alto main street,
That means it can plug and play anywhere. t going to be quite difficult to regulate, Evans predicts.
Conventional augmented reality glasses use lenses, beam splitters, waveguides, reflectors, and other optics to relay an image to the eye,
It replaces these with an array of bright dots dubbed pinlights. transparent display panel is placed between the pinlights
#A New Chip Could Add Motion Sensing to Clothing A company called mcube has made a new kind of accelerometer, the device that senses motion from inside a smartphone or fitness monitor.
The new accelerometers are a millimeter across, less than half the size of conventional ones. The company says they are more accurate, more power-efficient,
Accelerometers are made usually of two chips: a mechanical device that detects movement, and a microchip that makes sense of the signal from the first chip.
In fact, the company says its new accelerometer is sensitive enough to replace the gyroscope in a smartphone.
says its customers are interested also in integrated, single-chip accelerometers. Rosa says Applied materials is, in fact, developing a process for making such chips using the latest materials,
motion detectors, accelerometers, and touch-sensitive buttons. Adding Wi-fi capabilities makes the devices more practical.
photodetector, and accelerometer into an earbud. The emitter shines an infrared light on a part of the ear between the concha and antitragusssentially, the lower part of the bowl of your ear,
The accelerometer, meanwhile, measures your movement. A digital signal processor (which can be housed inside or outside the earbud) analyzes the data,
With accelerometer and blood-flow data, Leboeuf says, Valencell algorithms can also estimate things like the number of calories youe burned.
Accelerometer data already being collected by the earbuds could even be used to create a sort of 3-D stereoscopic audio experience
The result is the 3dtouch a thimble-like device that sits on the end of a finger equipped with a 3d accelerometer a 3d magnetometer and 3d gyroscope.
in order to make them more practical for people who have scarce bandwidth and pay high data rates, said Jay Parikh, head of infrastructure at Facebook, at MIT Technology Review Digital Summit event in San francisco today.
and expanding its"bandwidth""This is only possible because graphene is transparent, unlike any conventional filament,
and expanding its"bandwidth""This is only possible because graphene is transparent, unlike any conventional filament,
accelerometers to track your wrist and elbow, and then an IMU sensor as well to track your bicep rotation as well as your shoulder movement,
and instrument performance from the scale of optical and super-resolution imaging to high-resolution and cryo-electron microscopes.
the team new aerogel has the lowest adjunction and widest effective bandwidth--with a reflection loss below-10 decibels.
In terms of applications, based on the combination of low adjunction and a ideeffective bandwidth, the researchers expect to see their 3-D PPY aerogel used in surface coatings for aircraft.
#Novel Method to Accurately Print High-resolution Images on Nanoscale Materials In this case, the print features are very fine visible only with the aid of a high-powered electron microscope.
Under a scanning electron microscope, the template looks like a needlepoint pattern of the logo. The researchers then beamed light through the holes to create the logo using no ink only the interaction of the materials and light.
and a cantilever hanging over the waveguide. A cantilever, or beam, is a long and thin strip of microscopic dimensions (5 micrometers long,
There are two optical signals going through the waveguide during oscillations: the first one sets the cantilever in motion,
Without the nanoscale waveguide and the cantilever, the chip simply wouldn't work. Abig cantilever cannot be made to oscillate by freely propagating light,
and the electromagnetic wave passing through the waveguide will be dispersed by the cantilever differently, which can be seen in the changes of the intensity of the readout signal.
#mcube Introduces Accelerometers Optimized for the nternet of Moving Thingsmcube, provider of the world smallest MEMS motion sensors,
today introduced the company first family of accelerometers optimized for wearables and the nternet of Moving Things (Iomt) The MC3600 family of ultra-low power,
high-performance 3-axis accelerometers is built upon mcube award-winning monolithic single-chip MEMS technology platform,
The new MC3600 family of accelerometers will consume only 0. 6ua of current, which is up to 3x less power consumption than competitive accelerometers.
Additionally, the mcube accelerometer comes in a 2 x 2 mm package and occupies a small footprint on the printed circuit board,
making it in some cases 3x smaller than other solutions on the market today for wearable devices.
president and CEO, mcube, Inc. ith key input from leading device manufacturers, we developed the MC3600 family of accelerometers to extend battery life
MC3610 Accelerometer Featuring an industry-leading small die size, the first commercially available device of the family is the MC3610 accelerometer, an ultra-low power,
integrated digital output 3-axis device, shipping in a 2 x 2 x 0. 94 mm 12-pin package.
and the ability to integrate multiple sensors onto a single-chip. mcube will continue to utilize this approach as it introduces more products in the MC3600 accelerometer family later this year.
The Keysight 9500 AFM system seamlessly integrates new software, a new high-bandwidth digital controller,
A new high-bandwidth, FPGA-based digital controller ensures high-speed operating precision and eliminates the requirement for additional external control boxes.
researchers rapidly froze samples of the proteasome bound to the inhibitor to allow them to be examined in the electron microscope at-180oc.
"Our study zooms in to display the proteasome complex-a recycling unit which plays a critical role in our cells-in far greater detail than we have seen ever before in the electron microscope.
but using the electron microscope will allow us to tackle protein complexes which no one has been able to crystallise,
which is a one-molecule-thick bag capable of holding liquid within it during exposure to the ultra high vacuum of the electron microscope column.
A constantly increasing demand for telecommunication bandwidth requires an ever faster operation of electronic devices, pushing their response times to be as short as a picosecond. he results of this study will help improve the performance of graphene-based nanoelectronic devices such as ultra-high speed transistors and photodetectorssays Professor Dmitry Turchinovich,
with microphones accelerometers and other transducers that have a large dynamic range. Common applications include audio acoustic and vibration testing.
Saturas'precision agriculture sensing system comprises of miniature implanted sensors wireless transponders and delivery of information to the farmer's Internet device:
and that could offer more than 1000 times the bandwidth of today's cell phone systems. Like pioneers who found land by going west telecom researchers can find open spectrum by going up--to higher frequencies.
while a television set top box may require much higher bandwidth and more complex spectrum management.
The problem was that electron microscopes work by shooting electrons at the speed of light through a biological sample suspended in a vacuum;
It reached Mach 4. 8 in less than half a minute powered by a solid rocket booster.
After separating from the booster, the scramjet engine was ignited, accelerating the aircraft to Mach 5. 1 at 60,000 feet.
used scanning electron microscopes to examine eight dinosaur fossils. These included a claw from a predatory theropod and bones from several unidentified hadrosaurs.
and Transparent OLED display panels initially designed to create a'virtual necklace'for a jewellery firm.
but Samsung said its Mirror OLED display panel has more than 75 per cent reflectance level and delivers at least 50 per cent higher reflectance than rival models.
and roll axis are detected by smartphone accelerometers, that send user data into the virtual world, which was created by HYVE companion animation studio, lumacode. the combination movement and visual cues,
With an arsenic concentration of 83%the material exhibits an extremely small band gap of only 0. 15 electron volts
With an arsenic concentration of 83%the material exhibits an extremely small band gap of only 0. 15 electron volts
The absence of a bandgap in pure graphene means that although its electrical conductivity is the highest of any material bar none,
not only how to build precisely defined bandgaps into composites of graphene and boron nitride, but they have uncovered also the deeper electronic structure of the material
There a touch display panel on the top to input collected data straight into the patient EMR.
Right now, graphene lack of a useful bandgap means that graphene computers are limited to analog computation only;
Its achievable bandgap also makes silicon highly absorptive to incoming energy sources like photons, and today most solar cells are based on silicon.
orientation and gravitational forces using accelerometers, gyroscopes and magnetometers. In the Gloveone, the IMU sensor will track your hands within the virtual world to offer a more realistic experience.
orientation and gravitational forces using accelerometers, gyroscopes and magnetometers. In the Gloveone, the IMU sensor will track your hands within the virtual world to offer a more realistic experience.
#Researchers cut the required bandwidth for graphics-intensive game streaming The rise of cloud gaming services such as Playstation Now may have ushered in a new era of convenience for blasting virtual aliens and monsters to smithereens,
the bandwidth required is astronomical. But researchers at Duke university and Microsoft Research think they have a solution that'll let gamers have their on-demand cake
The researchers claim that this collaborative rendering technique requires just one-sixth as much bandwidth as conventional cloud gaming setups for the same visual quality.
The nanoscale perforations used to provide this color are so small as to only be visible with the help of an electron microscope,
and holes generated in the larger bandgap of the perovskite are transferred with 80 percent efficiency to become excitons in the quantum dot nanocrystals.
#Low-cost prosthetic knee could let the impoverished walk normally Some higher-end prosthetic legs are equipped with things like gyroscopes and accelerometers,
because antenna size and operating bandwidth tend to be conflicting tradeoffs. his is why tunable antennas are highly desirable:
This will allow datacenters to offer greater data rates and bandwidth for cloud computing and Big data applications.
which can overcome the bandwidth-distance limitations inherent to multimode VCSEL links. IBM CMOS integrated nanophotonics technology combines the essential parts of an optical transceiver, both electrical and optical, on one silicon chip.
and receive data with high bandwidths as well as to detect trace molecules or bio-agents. Construction of our nanolaser required precise control over the shape and location of the adjacent gold nanoparticles.
This electron microscope image shows tiny nanoparticles of bismuth ferrite embedded in a polymer film. The film enhances the unique electric and magnetic properties of bismuth ferrite and preserves these properties even when bent.
and hexagonal boron nitride created a unique bandgap in graphene, which could be a precursor to developing the material for functional transistors.
In addition to the Hofstadter butterfly result, the same devices were also the first to show a bandgap in graphene.
Scanning electron microscope image of an individual nano-spiral. Haglund Lab/Vanderbilt) Source: http://news. vanderbilt. edu/..t
and attach them to their testing platform inside an electron microscope. This platform, developed in conjunction with Sandia National Laboratory
and the materialsability to sense long wavelength infrared (LWIR) waves due to their small energy gaps. This particular electromagnetic spectral range of LWIR is important for a range of applications such as LIDAR (light radar) systems
and built to work seamlessly with both synchrotron x-rays and electron microscopes.""Everything was controlled exquisitely at both NSLS
green or redthat is determined by a unique atomic structure and energy bandgap. The attice constantrepresents the distance between the atoms.
and energy bandgaps. ur goal is to achieve a single semiconductor piece capable of laser operation in the three fundamental lasing colors.
Six years ago, under U s army Research Office funding, they demonstrated that one could indeed grow nanowire materials in a wide range of energy bandgaps
proved to be a greater challenge with its wide energy bandgap and very different material properties. e have struggled for almost two years to grow blue emitting materials in nanosheet form,
it is suited not to the field of optoelectronics where TMDCS such as molybdenum disulphide (Mos2) have a clear advantage thanks to exhibiting a finite band gap in the visible wavelength range.
The paper describes how gentle oxygen plasma treatment produces direct bandgap transition in many-layer Mos2.*
The authors successfully demonstrate the generation of an indirect-to-direct bandgap transition in many-layer Mos2 through the use of an easy to use, scalable oxygen induced plasma process.
XEI has sold now more than 2000 Evactron systems worldwide solving contamination problems in many different environments using high vacuum including electron microscopes, FIBS and other vacuum sample chambers.
Another possibility would be to grow large sheets of graphene that can be used as a transparent conducting electrode for solar cells and display panels."
In a new study this week in the American Chemical Society journal Applied materials & Interfaces, Tour and colleagues demonstrated fine control over the graphene oxide dots'size-dependent band gap,
the team's new aerogel has the lowest adjunction and widest effective bandwidth--with a reflection loss below-10 decibels.
In terms of applications, based on the combination of low adjunction and a"wide"effective bandwidth, the researchers expect to see their 3-D PPY aerogel used in surface coatings for aircraft.
by literally videoing these processes on the nanoscale level using an electron microscope.''The development employed a recently developed process called Liquid Cell Transmission Electron microscopy.
The result is Cds semiconductor nanocrystals with associated size-dependent band gap and photoluminescent properties. This biosynthetic approach provides a viable pathway to realize the promise of green biomanufacturing of these materials.
and built to work seamlessly with both synchrotron x-rays and electron microscopes.""Everything was controlled exquisitely at both NSLS
In-situ scanning electron microscope (SEM) tests of individual NWS showed that upon removal of the bending load and instantaneous recovery of the elastic strain, a significant portion of the total strain gradually recovers with time.
while they were in a scanning electron microscope. Additional analysis was done using a Titan aberration-corrected scanning transmission electron microscope in NC State's Analytical Instrumentation Facility.
When any material is bent the bonds between atoms are stretched or compressed to accommodate the bending,
waveguide, a physical structure for guiding sound waves. The intensive resonances of the membranes significantly reduce the structure's effective mass density
This energy gap, in addition to other parameters such as density difference in electrical charges and type and density of surface atoms,
"These scanning electron microscope images show the graphene ink after it was deposited and dried (a) and after it was compressed (b). Compression makes the graphene nanoflakes more dense,
to create tiny optical waveguides, about 20 nanometers in size the same size range as the smallest features that can now be produced in microchips.
It also potentially allows for the generation of intense femotosecond electron pulses that could increase resolution for time-resolved electron microscopes that follow the motion of individual atoms
"Scanning electron microscope image of an individual nano-spiral. Image: Haglund Lab/Vanderbilt) They are certainly smaller than any of the spirals weve found reported in the scientific literature,
#Researchers build world's first fully functioning single crystal waveguide in glass Researchers from Lehigh University,
and demonstrating what they call the"world's first fully functioning single crystal waveguide in glass."
"In an article published in Scientific Reports("Direct laser-writing of ferroelectric single-crystal waveguide architectures in glass for 3d integrated optics),
The group says its achievement will boost ongoing efforts to develop photonic integrated circuits (PICS) that are smaller, cheaper, more energy-efficient and more reliable than current networks that use discrete optoelectronic components--waveguides, splitters, modulators, filters
"Amorphous waveguides fundamentally lack second-order optical nonlinearity due to their isotropically disordered atomic structure, "the researchers write,
and a cantilever hanging over the waveguide. A cantilever, or beam, is a long and thin strip of microscopic dimensions (5 micrometers long,
There are two optical signals going through the waveguide during oscillations: the first one sets the cantilever in motion,
Without the nanoscale waveguide and the cantilever, the chip simply wouldn't work. Abig cantilever cannot be made to oscillate by freely propagating light,
and the electromagnetic wave passing through the waveguide will be dispersed by the cantilever differently, which can be seen in the changes of the intensity of the readout signal.
High Efficiency as a result of an Indirect Electronic Band gap?"."Organic solar cells made of metal-organic frameworks are highly efficient in producing charge carriers.
suggest that the excellent properties of the solar cell result from an additional mechanism the formation of indirect band gaps that plays an important role in photovoltaics.
high efficiency resulting from an indirect electronic band gap?.The clou is that we just need a single organic molecule in the solar cell,
The result is Cds semiconductor nanocrystals with associated size-dependent band gap and photoluminescent properties. This biosynthetic approach provides a viable pathway to realize the promise of green biomanufacturing of these materials.
With the aid of cryo-electron microscopes, Medalia's team was able to display the miniscule nuclear pores,
and the materials'ability to sense long wavelength infrared (LWIR) waves due to their small energy gaps. This particular electromagnetic spectral range of LWIR is important for a range of applications such as LIDAR (light radar) systems,
such as an altered band gap, and possibly superconductivity if properly doped.""From left are: Professor Jim Williams, Professor Andrei Rode and Associate professor Jodie Bradbury with the complex electron diffraction patterns.
pointing out that ordinary techniques like electron microscopes dont provide the amount of detail necessary to understand whats happening on the surface of nanomaterials.
pure Tio2 has a large bandgap--that is, it takes a great deal of energy to excite electrons from one level to another--and only displays photocatalytic properties under ultraviolet light.
It also reduced the nanoparticles'bandgap, decreasing the amount of energy necessary to activate the photocatalyst.
TEM Nanocube A nanoscale view of the new superfast fluorescent system using a transmission electron microscope.
After each trial, they analyzed the structure and the functional properties of the product electrical, opticalusing electron microscopes and spectroscopic tools,
#Ultrafast Lasers Create 3-D Crystal Waveguides in Glass Ultrafast Lasers Create 3-D Crystal Waveguides in Glassbethlehem, Pa.
June 9, 2015 Femtosecond laser pulses can create complex single-crystal waveguides inside glass a discovery that could enable photonic integrated circuits (PICS) that are smaller, cheaper, more energy-efficient and more reliable than current networks that use
researchers at Lehigh University have reported creating waveguides with a loss of 2. 64 db/cm at 1530 nm."
Bandwidth Demands Drive Fiber optics Advance s
#Graphene Filaments Provide Tunable On-Chip Light source Graphene Filaments Provide Tunable On-Chip Light Sourcenew YORK, June 15,
The Grillo Active contains an accelerometer, Wi-fi and GPS. But how will it work? The efficacy of a system relies on sensor placement.
Doubts toward sensitivity thresholds in accelerometers (compared to calibrated scientific instruments) and Wi-fi speed and reliability beg to be asked.
accelerometers to track your wrist and elbow, and then an IMU sensor as well to track your bicep rotation as well as your shoulder movement,
because antenna size and operating bandwidth tend to be conflicting tradeoffs. e
#Scientists Create Single-Molecule Diode The idea of creating a single-molecule diode a circuit element that directs current flow was suggested first more than 40 years ago, in 1974, by researchers Arieh Aviram of IBM Thomas
suggest that the excellent properties of the solar cell result from an additional mechanism the formation of indirect band gaps that plays an important role in photovoltaics.
An electron microscope image shows the cross section of laser-induced graphene burned into both sides of a polyimide substrate.
The team's nanofabricated waveplates achieved measured polarization conversion rates higher than 92 percent over more than an octave bandwidth with a wide filed-of-view of around 40 degrees."
or even fast and high power control of light beams for free space optical communications using orbital angular momentum to increase signal bandwidth,
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