Aplicatiile ar putea fi multiple, ele implicand realizarea de produse textile „invizibile” (de camuflaj), cu posibilitati de exploatare nu numai in domeniul miloitar , dar si in cel al produselor tehnice din domeniul industrial (camuflarea obiectivelor industriale), ori in domeniul designului vestimentar-prin crearea de produse cu caracteristici optice si de aspect deosebite.
Un material complet opac este iradiat de sus, cu un model specific de undă – cu efectul că undele luminoase din stânga pot trece acum prin material fără nici o obstrucție.
Acest rezultat surprinzător deschide complet noi posibilități pentru camuflajul activ. Ideea poate fi aplicată diferitelor tipuri de valuri, ar trebui să funcționeze cu valuri de sunet la fel de bine ca și cu unde luminoase. Experimentele se află deja în planificare.Dacă acest model corespunde perfect neregularităților interioare ale materialului care de obicei dispersează lumina, atunci proiecția de deasupra poate opri efectiv împrăștierea și un alt fascicul de lumină care călătorește prin material dintr-o parte poate trece fără nici o obstrucție, împrăștiere sau pierderi.
| Posted: Sep 13, 2017 | |
The beam of invisibility(Nanowerk News) How do we make an object invisible? Researchers from TU Wien (Vienna), together with colleagues from Greece and the USA, have now developed a new idea for a cloaking technology. A completely opaque material is irradiated from above with a specific wave pattern – with the effect that light waves from the left can now pass through the material without any obstruction. |
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| This surprising result opens up completely new possibilities for active camouflage. The idea can be applied to different kinds of waves, it should work with sound waves just as well as with light waves. Experiments are already in the planning. | |
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| A material with random irregularities scatters an incident light wave into all directions. | |
Outwitting the Scattering of Light |
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| “Complex materials such as a sugar cube are opaque, because light waves inside them are scattered multiple times”, says Professor Stefan Rotter (TU Wien). “A light wave can enter and exit the object, but will never pass through the medium on a straight line. Instead, it is scattered into all possible directions.” | |
| For years many different attempts have been made to outwit this kind of scattering, creating a “cloak of invisibility”. Special materials have been worked out, for example, which are able to guide light waves around an object. Alternatively, also experiments have been performed with objects that can emit light by themselves. When an electronic display sends out exactly the same light as it absorbs in the back, it can appear invisible, at least when looked at in the right angle. | |
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| The material is irradiated with a specially designed pattern, the wave from the left can pass through the object completely unperturbed. | |
| At TU Wien a more fundamental approach has now been chosen. “We did not want to reroute the light waves, nor did we want to restore them with additional displays. Our goal was to guide the original light wave through the object, as if the object was not there at all”, says Andre Brandstötter, one of the authors of the study („Wave propagation through disordered media without backscattering and intensity variations”). “This sounds strange, but with certain materials and using our special wave technology, it is indeed possible.” | |
The Laser Material |
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| The team at TU Wien has spent years working on optically active materials, which are used for building lasers. To make the laser shine, energy has to be supplied by means of a pump beam. Otherwise, the laser material behaves just like any other material – it absorbs part of the incident light. | |
| “The crucial point is to pump energy into the material in a spatially tailored way such that light is amplified in exactly the right places, while allowing for absorption at other parts of the material”, says Professor Konstantinos Makris from the University of Crete (previously TU Wien). “To achieve this, a beam with exactly the right pattern has to be projected onto the material from above – like from a standard video projector, except with much higher resolution.” | |
| If this pattern perfectly corresponds to the inner irregularities of the material which usually scatter the light, then the projection from above can effectively switch off the scattering, and another beam of light travelling through the material from one side can pass without any obstruction, scattering or loss. | |
| “Mathematically, it is not immediately obvious that it is at all possible to find such a pattern”, says Rotter. “Every object we want to make transparent has to be irradiated with its own specific pattern – depending on the microscopic details of the scattering process inside. The method we developed now allows us to calculate the right pattern for any arbitrary scattering medium.” | |
Light or Sound |
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| Computer simulations have shown that the method works. Now the idea should be confirmed in experiments. Stefan Rotter is confident that this will be successful: “We are already discussing with experimentalists how this could be done. As a first step, we may test this technology with sound instead of light waves. Experimentally, they are easier to handle, and from a mathematical point of view, the difference does not matter significantly.” |
| Source: Vienna University of Technology | |
Folosind puterea de stand-by virtuală zero, senzorii ar putea îmbunătăți gradul de conștientizare pentru războinici, adăugați inteligența la Internet a Lucrurilor.Construiți un senzor minuscul care detectează o semnătură a lungimilor de undă în infraroșu (IR) caracteristice unui canal de evacuare fierbinte, unui foc de lemn sau poate chiar unei ființe umane
Anchetatorii speră că o gamă mai largă le va permite să dezvolte, în colaborare cu unitatea SLAC a Departamentului de Energie de la Stanford, un spectrometru unic capabil să colecteze simultan și să măsoare cu precizie multe raze X de înaltă energie din materialele studiate la X Laser cu laser liber. Razele de raze penetrante de la această unealtă puternică sunt utilizate din ce în ce mai mult pentru a înțelege proprietățile materiei în timpuri foarte scurte, dar sunt necesare magistrale mai mari chiar și pentru această sursă strălucitoare de raze X.Versiunile noului instrument pot detecta semnale pe o gamă largă de frecvențe, de la gamma sau raze X la lungimi de undă la lungimi de undă cu lungimi de undă. Detectarea razei gama este crucială pentru contabilitatea materialelor nucleare, în special pentru urmărirea izotopilor de plutoniu în combustibilii nucleari uzați. Deoarece plutonul poate fi folosit pentru a crea arme nucleare, este important să existe metode rapide și exacte pentru a măsura cantitatea de plutoniu din combustibilul nuclear trimis pentru reprocesare.
| Posted: Aug 14, 2017 | |
New SQUID-based detector opens up new fields of study with new level of sensitivity(Nanowerk News) Investigators at the University of Colorado, Boulder and the National Institute of Standards and Technology (NIST) have developed a new sensor array-based instrument that offers ultra-low noise detection of small amounts of energy for a number of applications. The new device allows for the collection of data from many more detectors than was previously possible. |
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| The advance, reported in this week’s issue of Applied Physics Letters („Simultaneous readout of 128 X-ray and gamma-ray transition-edge microcalorimeters using microwave SQUID multiplexing”), is expected to allow applications in fields as diverse as nuclear materials accounting, astrophysics and X-ray spectrometry. | |
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| Photograph of a 33-channel SQUID multiplexer chip (20 mm x 4 mm) along with its microwave response showing the associated resonances. Multiple chips are daisy-chained together to achieve larger multiplexing factors. (Image: J.A.B. Mates, University of Colorado Boulder) (click on image to enlarge) | |
| The instrument consists of 128 superconducting sensors and combines their output into a single channel provided by a pair of coaxial cables. In the past, array size was limited by the bandwidth available to combine signals into a reasonable number of output channels. This new research demonstrates a hundred-fold bandwidth improvement, and the investigators plan to do even better soon. They overcame the bandwidth barrier by using very cold superconducting microwave circuitry and superconducting quantum interference device amplifiers, known as SQUIDs, capable of boosting the intensity of small signals. | |
| The new device uses radiofrequency SQUIDs to regulate high-quality microwave resonators. When these resonators are coupled to a common microwave feed line, with each resonator tuned to a different frequency, all sensors can be simultaneously monitored. | |
| “It’s as if one were trying to listen to hundreds of radio stations at one time, through one radio receiver,” said Ben Mates of the University of Colorado and lead author of the work. The SQUID resonators boost the signal in each channel, he explained, allowing simultaneous readout of all the radio stations at once. | |
| Versions of the new instrument can detect signals over a wide range of frequencies, from short-wavelength gamma or X-rays to long-wavelength microwaves. Gamma ray detection is crucial for nuclear materials accounting, particularly for tracking plutonium isotopes in spent nuclear fuels. Since plutonium can be used to create nuclear weapons, it is important to have fast, accurate methods to measure the amount of plutonium in nuclear fuel sent for reprocessing. | |
| Current technology for tracking plutonium uses mass spectrometry, but this method is expensive and time consuming. Faster and less costly technologies based on gamma-ray spectroscopy don’t have the accuracy to rule out small discrepancies in amounts of plutonium from a large facility. Only 8-10 kilograms of missing material is needed to build a nuclear bomb. The new array detectors are candidates to improve the accuracy of gamma-ray spectroscopy so that nuclear material can be tracked more easily. | |
| At the other end of the spectrum, the new instrument is expected to improve astronomical studies of cosmic microwave background radiation, which is mostly uniform, although small and important fluctuations exist in its intensity and polarization. The researchers predict that similar versions of their instrument will be used to search for fluctuations in polarization that are a signature of an inflationary epoch in the earliest moments of the universe. | |
| The investigators hope that a larger array will allow them to develop, in collaboration with the Department of Energy’s SLAC facility at Stanford, a unique spectrometer capable of simultaneously collecting and precisely measuring many high energy X-rays from materials under study at the California facility’s X-ray free electron laser. Penetrating X-rays from this powerful tool are increasingly used to understand the properties of matter on ultrashort timescales, but larger detector arrays are desirable even for this bright X-ray source. Toward this end, future work will focus on increasing the array size to a thousand sensors or more. |
| Source: American Institute of Physics |
Read more: New SQUID-based detector opens up new fields of study with new level of sensitivity
modelul a fost dezvoltat special pentru a satisface cerințele de colorare ale OPFOR pentru a replica terenurile în care operează și „depășesc nivelurile de reflexie în infraroșu (IR) apropiate de ceea ce văd în prezent în inventarul american de acolo și acest lucru unul a întâmpinat nevoile lor cu colorarea și cu spectrul luminos aproape de infraroșu
HyperStealth Biotechnology Corp. President/CEO Guy Cramer was kind enough to show DefenseReview (DR) the new USMC OPFOR (United States Marine Corps Opposing Force) “swirly” (or “swirling”) jungle/woodland combat camo (camouflage) pattern BDU (Battle Dress Uniform) at NDIA SOFIC (Special Operations Forces Industry Conference) 2017, and the pattern looked pretty good. According to Cramer, the pattern was specifically developed to meet the OPFOR’s coloration requirements to replicate the terrains in which they operate and “surpass the near-infrared (IR) reflectance levels of what they were currently seeing in the US inventory out there, and this one met their needs with the coloration, and with the near-infrared [light spectrum]. So, very much an advance [in uniform technology] compared to what they’re typically using in the scenarios that they do.”
Now, you may be asking why a non-digital “swirly” pattern. Well, Cramer answered that one for us. “So, for Special Forces, you’re gonna’ want something that is not digital, because quite often, they’ll be within engagement ranges that are 10-5 yards. Digital is so artificial looking that close up, it’s actually give it away. At 30 yards, digital looks better. It actually blends in with the background much better than a design that’s not digital,” says Cramer. Cramer told DR that the new Hyperstealth USMC OPFOR combat camouflage pattern BDU actually started out as a digital pattern, that HyperStealth modified into a non-digital (analog?) swirly pattern. In other words, the non-digital/analog swirly jungle/woodland USMC OPFOR combat camo pattern is designed to optimize concealment at close-in dynamic CQB/CQC (Close Quarters Battle/Close Quarters Combat) distances.
Anyway, Cramer told DR that as of our interview with him at SOFIC, the USMC OPFOR unit had already adopted the new HyperStealth Biotechnology OPFOR BDU, and had been using it for about 6 weeks, which means that they’ve been using it for about 3 months, now.
Defense Review likes the HyperStealth USMC OPFOR pattern, and looks forward to talking with some of the units’ operators at some point, to get their direct feedback on it. In the meantime, enjoy the embedded photos and video.
Company Contact Info:
Guy Cramer, President/Owner
HyperStealth Biotechnology Corp.
P.O. Box 21134
Maple Ridge Sq.
Maple Ridge, B.C., V2X 1P7
Office Phone: 604-961-7046
Email: [email protected]
Website: http://www.hyperstealth.com
Valorile frecvențelor undelor terahertz variază între spectrul infraroșu și undele gigahertz.Undele terahertz permit detectarea materialelor nedetectabile la alte frecvențe.
capitolul este descris aici având un dispozitiv de cameră montat pe un margine și accesorii pentru acesta
Dispozitivul aparatului foto poate include un vizor, cum ar fi o fotografie
LBX-0080A-CAIMAN Assaulter Camouflage Combat Tricou Caracteristici:
„- Jersey corp tricotat centru w / 65/35 poli / bumbac ripstop mâneci
– Buzunare laterale cu buzunare cu buzunar și buzunar cu buzunare cu fermoar și buclă pentru patch-uri
– deschiderea încheieturii mânerului cu cârlig și buclă reglabilă ”
LBX-0081A-CAIMAN Assaulter Camouflage Combat Pant Caracteristici:
„- 65/35 Poly Cotton Ripstop
– Pantaloni de lupta Ripstop w / patch de scaun armat
– zip acoperi w / închidere snap
– Buzunare frontale duble
– Două (2) buzunare laterale de încărcare laterale cu închidere cu cârlig și buclă și guseți laterali răniți
– genunchii întăriți dublu stratificați cu închidere pentru cârlig și buclă pentru inserția opțională a genunchiului
– Două (2) buzunare auxiliare pentru picioare „
LBX Tactical, a division (or subsidiary) of London Bridge Trading Inc. (LBT), showed a very interesting BDU (Battle Dress Uniform) consisting of the LBX-0080A-CAIMAN Assaulter Camouflage Combat Shirtand LBX-0081A-CAIMAN Assaulter Camouflage Combat Pant. Both products featured the HyperStealth Caiman foliage green/arid digital combat camo (camouflage) pattern by HyperStealth Biotechnology Corp., but two additional patterns, HyperStealth Inland Taipan desert pattern and HyperStealth Snow Raptor arctic pattern, are also available. The combat shirt and pants also come with the following respective features:
LBX-0080A-CAIMAN Assaulter Camouflage Combat Shirt Features:
“- Jersey knit center body w/ 65/35 poly/cotton ripstop sleeves
– Hook and Loop side sleeve zipper pockets w/ hook and loop area for patches
– Adjustable hook and loop wrist opening”
LBX-0081A-CAIMAN Assaulter Camouflage Combat Pant Features:
“- 65/35 Poly Cotton Ripstop
– Ripstop combat pant w/ reinforced seat patch
– Zip fly w/ snap closure
– Dual front utility pockets
– Two (2) deep side cargo pockets w/ hook and loop closure and bellowed side gussets
– Dual layered reinforced knees w/ hook and loop closure for optional knee pad insert
– Two (2) low leg ancillary pockets”
Bo Stewart of LBT and LBX was kind enough to take DefenseReview (DR) through the LBX-0080A-CAIMAN Assaulter Camouflage Combat Shirt and LBX-0081A-CAIMAN Assaulter Camouflage Combat Pant at SHOT Show 2016, and DR liked what we saw. The products looked pretty good to us, and we particularly liked the minimalist approach. According to Stewart, the HyperStealth Caiman combat camo pattern, after “a lot of studies”, “tested off the chart. As far as how this pattern works and the environment it’s supposed to be in, this pattern did very, very well.”
DR has no idea, as yet, how well-made the Assaulter combat shirt and pants are, but they look well-made at first glance.
Editor’s Note: That skateboard in the background of the video (see below) also looked pretty good to us, since we also happen to like skateboards, here.
Company Contact Info:
LBX Tactical
585 London Bridge Road
Virginia Beach, VA 23454
Toll Free: 800-229-0207
Email: [email protected]
Website: http://lbxtactical.lbtinc.com
London Bridge Trading Inc. (LBT)
585 London Bridge Road
Virginia Beach, VA 23454
Toll Free: 800-229-0207
Email Customer Service: [email protected]
Email Marketing: [email protected]
Website: http://lbtinc.com
Guy Cramer, President/Owner
HyperStealth Biotechnology Corp.
P.O. Box 21134
Maple Ridge Sq.
Maple Ridge, B.C., V2X 1P7
Office Phone: 604-961-7046
Email: [email protected]
Website: http://www.hyperstealth.com
Cirrus are toată bunătatea tactică și utilitară a Pantalonului Ridgeline, cu o anumită fler de sex feminin / stil și modelare
Tactical a ucis-o într-adevăr cu îmbrăcămintea lor de luptă / tactică, în ultima vreme, și asta este în special adevărat cu pantalonii.
cămăși tactice noi carouri concepute special pentru misiuni / operații ascunse și carouri ascunse,cămăși tactice noi, create special pentru misiuni / operații ascunse și carouri ascunse, Tru-Spec face un aspect foarte frumos cu mâneci scurte,
