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"You turn on the high beams to try to make it even brighter, and you get even more light back in your eyes.
photonic crystal fibre (PCF) lasers offer better and more accurate beam quality, are highly efficient, use less power,
Bugnicourt says between 50 and 100 million tonnes of wood could use Durawood pre-treatment system every year. urawood could help the timber industry by improving the quality of products
Five years later, Udalov was working as a researcher at the University of Twente in the field of high-power pulsed electron beams
Among the project's breakthroughs, the X-ray backscatter equipment produces high-intensity beams and is much safer than existing devices,
Udalov spent time at the UK company Ex-Beams Ltd. to learn about IMS technology
The british team members founded Ex-Beams, which is involved in the detection of landmines and explosives.
All that may soon change thanks to a new construction technology known by its acronym Preco-Beam (which stands for Prefabricated Enduring Composite beams based on innovative shear transmission.
By combining steel and concrete in prefabricated composite structures with reinforced concrete slabs, the European union (EU)- funded Preco-Beam project found a way to shave months off construction times
"Project Officer Jonas Hedberg said of Preco-Beam, which ran from 2006 to 2009 and received#838,000 in EU funding.
Already now eight new railway bridges using Preco-Beam have been built in Germany, Austria and Poland."
The Preco-Beam consortium invented a new shape for this composite dowel, which connects steel and concrete:
namely an I-section which can be divided into two steel T-beams by one simple cut."
was rebuilt using Preco-Beam technology, transport only had to be interrupted for a weekend. Composite structures-in which different building materials are combined-gained prominence in Europe because of their high resource efficiency and low maintenance requirement.
the Preco-Beam consortium brought together seven partners from France, Poland, Germany, Sweden, Belgium and Luxembourg."
showed that using Preco-Beam in its bridges could have cut expenses by approximately 40 percent.
To that end, the Preco-Beam consortium is already disseminating technical guidelines and design rules via the Internet,
and there are plans to use Preco-Beam for buildings. Meanwhile, European citizens may be more likely to enjoy the benefits of their infrastructure,
and promote in particular the use of lignin a by-product of wood pulp production. BIOCOUP will also help to make a significant contribution to the reduction of CO2 EMISSIONS in the transportation sector through the efficient utilisation of biomass material.
The process begins with the procurement of bio-feedstocks such as wood pulp paper and food from existing industries and the processing of upgraded biomass-derived liquids in existing mineral oil refineries.
Finally the"smart chip"contains a radio antenna to beam back sensor readings or signal the completion of its therapeutic task.
the researchers developed a flexible beam and integrated the piezoelectric materials. The use of piezoelectric materials allowed them to simultaneously measure the flexing and the rotation of the beam,
which in turn allowed them to replicate the fly hearing. Hall credits the pioneering work of Ronald Miles at Binghamton University and Ronald Hoy at Cornell University,
of radio is that it uses wider, more robust beams. Wider beams are better able to cope with obstacles between the transmitter and the receiver
and radio is affected not as by atmospheric turbulence as optics, Willner says. To achieve the high transmission rates,
Using electron-beam evaporation which is a common technique in CMOS processing Zheng deposited a thin layer of aluminum onto a silicon photodetector topped with an ultrathin oxide coating.
but with a bit of chaos. ulses of Srf shoot out from a cryogenic chamber to form a beam of molecules
It is the material itself a layered strontium titanium oxide not found in nature created through molecular beam epitaxy
and luggage could improve security at airport checkpoints researchers say. ince this method uses a single beam
but has the beam output of a simple presentation pointer. hile working on biomedical imaging I began exploring additional applicationsdantus says. e soon learned how effective it was for detecting traces of hazardous substances from distances up to 10 meters away. s described in the journal Applied Physics Letters the bomb-detecting
laser works as a single beam but uses two pulses. The first resonates with certain chemical frequencies found in explosives.
either as a concentrated beam at a specific target or as a dispersed wave. Changing the liquid also affects how a light beam will refract.
#Cancel each other outin this new system a waveguide feeds laser light into a cavity created by two tiny silicon beams.
which effectively turn the beams into mirrors. When photons-particles of light-strike the beams they cause the beams to vibrate.
And the particulate nature of the light introduces quantum fluctuations that affect those vibrations. Typically such fluctuations mean that
so that the light and beams interact strongly with each other#so strongly in fact that the beams impart the quantum fluctuations they experience back on the light.
And as is the case with the noise-canceling technology used for example in some headphones the fluctuations that shake the beams interfere with the fluctuations of the light.
#One in a trillionthe T2k experiment based in Tokai Japan expects to collect 10 times more data in the near future including data with an antineutrino beam.
The neutrino beam is monitored by a detector complex in Tokai and aimed at the gigantic Super-Kamiokande underground detector in Kamioka near the west coast of Japan 295 kilometers (185 miles) away from Tokai.
and an optics system that divides the three beams into 14 tracks on the ground.
Zheng's color photodetector consists of an ultra-thin oxide coating atop a thin layer of aluminum that was deposited onto a silicon photodetector using a common technique called electron-beam evaporation.
and the company Trilite Technologies have developed a new kind of display just for this purpose that sends beams of light directly to the viewerseyes via a laser and a sophisticated mirror system.
For example,#every time we take a smartphone with us in a car, it beams information on our location and speed to Google.
the printer uses the concentrated beam of sunlight to slowly trace an object into the sandbox layer by layer.
##Aircraft can safely traverse the beam and tests have demonstrated that even the sensitive honeybee is unaffected,
In its broad-beam form, microwaves become safe for birds and insects to fly through. Microwaves also have an efficiency advantage.
If you had to put a beam somewhere for structural reasons that was going to mess up the sound,
sailors aboard the Ponce can increase the strength of the laser's highly concentrated beam,
the beam can be turned up higher, making it capable of destroying the threat altogether. In recent tests, Laws successfully hit targets aboard a small boat that was speeding toward the Navy ship.
and certified lumber was used throughout. Over a year, the house is expected to generate a 2. 6-megawatt-hour surplus (compared to the average home consumption of 13.3 megawatts.
between the two beams were detected using interference. The differencein optical path length was due to the tiny difference of the thickness of the glass.
When both beams hit a flat part of the surface, they traveled the same distance and created a corresponding interference pattern.
#Electron beams set nanostructures aglow Put a piece of quartz under an electron microscope and it will shine an icy blue.
But the light#emitted after a beam of electrons kicks a material s own electrons into a higher energy state#is faint and diffuse,
because it is triggered by a narrow beam of electrons, it promises the same nanometre scale resolution that those systems can achieve."
in which X-ray beams are fired at crystals of the compound, and the structure is deduced from how the beams scatter.
The teams focused on two receptors, called 1b and 2b. They found that the molecules had very similar structures in the areas where serotonin docks.
the display beams different images in different directions, so that a person's left and right eyes see slightly different images#a requirement for the brain to process an image as 3d.
A microscope sends sheets of light rather than a conventional beam through the fish's brain,
and Flora (CITES) took the unprecedented step of granting protection to sharks and various species of tropical timber tree in their final vote today.
Conservationists see the move into timber as equally significant, with several tropical hardwoods, including ebonies and rosewoods, added to appendix II."
#Boxy Cubesats get a propulsion boost in new space race Tiny liquid volcanoes that spray beams of charged particles could make space history next year.
so that it is strong enough to pull away ions in a steady beam (see below). The process is self-sustaining.
Choreographed high-power lasers or electron beams can fuse and sculpt metal powders into high-performance machine parts.
These particles are separated into two beams with magnets (Physical Review Letters doi. org/m2n. The team call their device an antimatter gun
Despite their short duration the beams contain a quadrillion positrons per cubic centimetre says Sarri meaning they are comparable in density to the ones made at CERN.
and the tabletop method makes searing-hot beams of particles moving at near light speed. As an alternative says Sarri the beams can be used to mimic the way particle fountains from black holes
and pulsars shoot through and interact with gases in the interstellar medium creating mini versions of these enigmatic astrophysical phenomena in the lab for the first time.
those beams will have areas of overlap and interference.""Beaming down Radio transmission is the most common way to communicate between satellites and Earth.
Typically the interest of this type of emitter is to be able to emit a beam of ions
and not a beam of droplets says Herbert Shea an associate professor in the Microsystems for Space technologies Laboratory at the cole Polytechnique F d rale de Lausanne.
But boosting power usually means decreasing beam quality or focus. And the beam never gets intense enough to melt metal.
Now MIT Lincoln Laboratory spinout Teradiode is commercializing a multikilowatt diode laser system that s bright enough to cut
The 4-kilowatt Terablade runs on a novel power-scaling technique developed at MIT that manipulates individual diode laser beams into a single output ray.
This allows for boosting power of a diode laser while preserving a very focused beam. The Terablade has comparable beam quality as compared with traditional manufacturing lasers such as carbon dioxide disk
and fiber says Teradiode cofounder and vice president Robin Huang a former Lincoln Laboratory researcher and Terablade co-inventor.
or incoherent beam combining developed by Huang and former Lincoln Laboratory researcher and Teradiode cofounder Bien Chann who is now the company s vice president and chief technology officer.
An individual diode laser in say a laser pointer can emit a beam in infrared and near-infrared wavelengths that can be focused tightly to a very small spot
Overlapping many similar beams at differing wavelengths however produces a beam that focuses on a small spot making it very intense.
And the number of overlapping beams with differing wavelengths can be very high. In the early 2000s Huang Chann and Lincoln Laboratory colleagues built a few prototype lasers based on WBC technology.
One which reached a power level of 50 watts was a world s record for diode laser brightness at that time Huang says.
which it s designed to do the grating forces the beams into the same direction superimposing them on one another.
or spatial beam combining that joins together the beams of similar wavelengths. As the number of diode lasers increases the beam quality degrades resulting in a large focused spot limiting the beam s intensity.
This means the Terablade outputs a beam roughly 100 times brighter than these scaled-up direct-diode laser models Huang says.
Each Terablade module outputs about 1000 watts and can be scaled to increase power. The company has developed also a commercial Terablade system:
The beam-stabilization system on the space terminal is based on inertial sensors which can be scaled to work even at the most distant planets.
which works by sending a laser beam through a sample, then splitting the beam into two.
By recombining those two beams and comparing the information carried by each one, the researchers can determine the sample height
allowing beams to be guided, funneled, and controlled by voltages applied to the sheet. his poses a new opportunity to send
The magnetic insulator Shi and his team used was yttrium iron garnet grown by laser molecular beam epitaxy in his lab. The researchers placed a single-layer graphene sheet on an atomically smooth layer of yttrium iron garnet.
Joel Yang and Shawn Tan at the A*STAR Institute of Materials Research and Engineering and co-workers used an electron beam to form arrays of approximately 100-nanometer-tall pillars.
allowing the device to project beams of colored light. Michael Mcalpine the lead researcher cautioned that the lens is designed not for actual use for one it requires an external power supply.
These techniques rely on specialized lenses electron beams or lasers-all of which are extremely expensive. Other conventional techniques use mechanical probes
or multiple beams of light allowing them to create a wide variety of nanostructure designs.
Using electron-beam lithography techniques the team carved out an array of inward tapering trenches designed to fit 1 to 3 rows of gold nanoparticles.
Using electron beam lithography she then stamps the pattern onto a polymer matrix and the nanowires are grown by applying electric current through electrodeposition.
which resembles a series of nails protruding from a piece of lumber. One end is held secure to a metal conductor like copper
One of these beams is used then to probe this vibration and generate a light, called coherent anti-Stokes Raman scattering (CARS).
and spectroscopy techniques where beams of high-frequency photons bombard and bounce off a material to reveal elemental structure and composition.
The highly focused electron beams available at CFN revealed individual atom positions as an applied current pushed pristine batteries to an overcharged state.
Under a strong electric field the cathode emits tight high-speed beams of electrons through its sharp nanotube tips a phenomenon called field emission.
Field emission electron sources catch scientists'attention due to its ability to provide intense electron beams that are about a thousand times denser than conventional thermionic cathode (like filaments in an incandescent light bulb.
It is exactly the same with the beams of light in the ultra-thin glass fibre.
Typically the interest of this type of emitter is to be able to emit a beam of ions
and not a beam of droplets says Herbert Shea an associate professor in the Microsystems for Space technologies Laboratory at the cole Polytechnique Fdrale de Lausanne.
Tests with the nanotube cathode have produced beam currents a thousand to a million times greater than the one generated with a large pricey laser system.
and expertise for handling intense electron beams one of relatively few labs that can support this project.
When a strong electric field is applied it pulls streams of electrons off the surface of the cathode creating the electron beam.
The electric and magnetic fields of the particle accelerator then organize the electrons into a beam. The tested nanotube cathode requires no laser:
Specifically Yamaguchi and his group used molecular beam epitaxy (MBE) to grow a layer of Inas QDS with a density of 5 x 1011 cm-2 on Gaassb/Gaas (100) substrates.
When the oscillation was strong enough the photons can spill over along the beam from the filled cavity to the empty cavity during each cycle Li said.
K. Goodfellow R. Beams C. Chakraborty L. Novotny A n. Vamivakas Integrated nanophotonics based on nanowire plasmons and atomically-thin material Optica Vol. 1 Issue
Using electron-beam evaporation which is a common technique in CMOS processing Zheng deposited a thin layer of aluminum onto a silicon photodetector topped with an ultrathin oxide coating.
a DOE Office of Science User Facility that provides beams of high-intensity x-rays for studies in many areas of science.
what is currently achievable using conventional electron-beam lithography techniques).""On a fundamental level, our work demonstrates electron-beam based manipulation of nanoparticles an order of magnitude larger than previously possible,
using a simple SEM operating at only a fraction of the electron energies of previous work,
what is currently achievable using conventional electron-beam lithography techniques). The team demonstrated that an electron beam from a standard scanning electron microscope (SEM) can be used to deform either individual p-BNA structures
along with a significant thermal contribution, permit sufficient compliance of the pillars to be actuated by electron-beam-induced gradient forces.
the team paired crystalline magnetic carbon nanoparticles and continuous wave near-infrared laser beams for in
which absorbs the beam, to heat up and destroy cancer cells in the lab. The team used the new photothermal delivery method in lab experiments to introduce impermeable dyes and small DNA molecules into human prostate cancer and fibroblast sarcoma cells."
while the Eiffel Tower achieves similar strength using a lattice of steel beams and struts that is mostly open air, gaining its strength from the geometric arrangement of those elements.
and diagonal beams do in a structure like the Eiffel Towerhe lighter structure can maintain its strength.
Then using a minuscule manipulator they break off a single nanowire from a forest of them grown by molecular beam epitaxy insert the wire into the hole and weld it in place.
differing chiral forms of molecules are detected by using beams of polarised light. The way in which the light is twisted by the molecules results in chiroptical effects,
The researchers also used tiny gold structures, known as plasmonic nanostructures, to focus the beams of light.
and a sonic beam to identify how the bomb's casing vibrates. From the patterns of the vibrations the researchers can tell
the beams of information travel together but don't interfere with one another. The old fiber would be only a single-lane highway says Fontaine.
One beam arouses fluorescent molecules to glow while the second beam suppresses all other fluorescence except for that in a nanometer-sized area.
The result? Only the nanometer-sized volume is registered by the microscope and a brightly lit image with better resolution than 0. 2 micrometers is revealed.
Then the top array reads the electrical commands from the brain and beams them to the lower array.
so that drivers can keep their high beams on even when other cars are coming toward them.
or snowflakes seem to disappear from its beam to clear the vision of the driver a trick that this team of engineers from Carnegie mellon University has been working on for a few years now.
The headlight is made actually up of not just one beam of light but one million tiny individual beams.
The individual beams are created the same way pixels on a projector are. There's a semiconductor chip that has an array of a million tiny mirrors on it.
This way the system can turn off some beams sometimes without the driver noticing too much. To make raindrops disappear the system tracks falling rain predicts where the drops are going
and then turns off the beams that would otherwise reflect light off the drops. To make headlights appear dimmer to oncoming drivers the system tracks other cars
and turns off only the beams that are aimed at those drivers. To make arrows on the road the beams project their light accordingly.
It's like having a football field full of dorky marching-band players that you can rearrange into whatever patterns you like.
and sold high beams that appear dimmer to other carss. Although they seem to be illegal in the U s.)Those adaptive high-beams work in much the same way aiming many beams of light at the world
and dimming only those that point at other drivers. However CMU emphasizes that its programmable light is able to project any number of custom arrangements not just the dim-for-others program.
and consisting of beams and stiffeners separated by bulkheads ballast tanks form much of a ship#s supporting structure.
or fixed skids (the ski-type beams sometimes seen under the fuselage of a helicopter).
#Sonic Tractor Beam Levitates Plastic Beads The future, apparently, is going to be loud. In what is being termed the world first sonic tractor beam,
researchers in Britain have developed an acoustic hologram that can hold, move and manipulate objects in mid-air.
Tractor beams have been a reliable staple in science fiction movies like tar Wars, where theye used to reel in uncooperative Rebel blockade runners and pesky Corellian freighters.
Hence the tractor beam effect. Similar freestanding haptic holograms have been developed previously, but without the precision required to hold an object in place
The sonic tractor beam could have some interesting applications down the line, according to the research team.
so the sonic tractor beam might be used to remove kidney stones and clots, deliver drug-laden capsules to various parts of the body,
when the beams collide. In routine operation, protons make 11,245 laps of the LHC per second producing up to 1 billion collisions per second.
stable beams that can remain in collision state for 8 to 12 to 24 hours at a time,
who prize stability, will be satisfied with the quality of the beam conditions being delivered to them, Sekula said."
The beam must be stable, so physicists on shifts in the control room can take high-quality data under stable operating conditions.
and cost of accelerators and improve the quality of the electron beams they produce.""Steven Jamison of the UK's Accelerator Science and Technology Centre (ASTEC), who wasn't involved in the research,
says"While this demonstration of terahertz-driven acceleration is done with low energy beams and significant challenges remain in scaling to higher energies and longer interaction lengths,
while Eve inserts a device into the polarized beam that very slightly tilts the beam
which the incoming beam can enter the device. But Makarov and colleagues were able to enlarge the size of the pinhole by exposing it to a 10 second pulse from a 3. 6 W near-infrared laser.
the researchers were able to tilt the beam enough to enable any eavesdroppers to steal the secret key.
Semiconductor lasers typically emit into elliptical beams that are really hard to work with and the new metasurface optical components could replace expensive optical systems used to circularize the beams.
The small size of these devices would also allow for more compact systems. The team is currently working with industrial partners to create metasurfaces for use in commercial devices such as miniature cameras and spectrometers,
which a beam of electrons smaller than the size of a hydrogen atom is scanned over a sample
The downside of this technique is repeated that the electron beam radiation can progressively damage the sample.
thanks to the electron beam energy being kept below the radiation damage threshold of tungsten. Miao and his team showed that the atoms in the tip of the tungsten sample were arranged in nine layers, the sixth
They added that kirigami systems might also be phased useful for array radar and optical beam steering.
said Langhammer. his usually means focusing a beam of high-energy electrons or photons or a mechanical probe onto a very tiny volume.
his proof-of-principle terahertz linear accelerator demonstrates the potential for an all-optical acceleration scheme that can be integrated readily into small-scale laboratories providing users with electron beams that will enable new experiments in ultrafast electron diffraction and X-ray production
"We sprayed a beam of solvent onto the fingerprint slide to determine if these substances were added present,
"We sprayed a beam of solvent onto the fingerprint slide to determine if these substances were added present,
while its beam generated by 4, 608 radiating elements can be steered. He said the radar weighing 35 tonnes,
while its beam generated by 4, 608 radiating elements can be steered. He said the radar weighing 35 tonnes,
and the orientation of the Cubesat controls the direction of the beam. This makes the laser system more compact than anything previously flown in space.
#World's first sonic tractor beam lifts objects with sound Researchers, including one of Indian-origin,
Tractor beams are mysterious rays that can grab and lift objects. The concept has been used by science-fiction writers,
The 3d printer used in the manufacturing of the hip joint was designed by a Swedish company Arcam AB and uses the Electronic Beam Melting (EBM) method of manufacturing,
could lead to developments in areas as diverse as high-powered"tractor beams";"or manipulating drug delivery in the human body.
"Tractor beams, delivering cancer drugs and other new potentials Professor Drinkwater said the importance of developing a single-sided device was expanded that it the potential of the technology
and paved the way for the development of'tractor beams'that could pull objects toward the sound source."
also, single-beam traps do not have repeated patterns that could accidentally trap other particles.""Professor Drinkwater said the development could also lead to"non-contact production lines"for handling delicate or dangerous materials without contact.
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