La nivel național, un metaplan pentru a determina amenințările naționale generale este activ în permanență în direcția efectuării unei evaluări de risc în timp util și, prin urmare, determină mobilizarea capacităților naționale de pregătire și supraveghere.
reacție de urgență pentru detecția pericolelor CBRNE cu multi roboti
Aderență și dexteritate inspirată de atletism într-o mănușă de atac maritim. Mănușa cu umiditate caldă WetWorX este destinată protecției mâinilor în medii mai umede mai calde, în cazul în care se menține apăsarea texturată și încrederea, dar este esențial să aveți timp de uscare rapidă.
S&S Precision usually has new and interesting products for military SOF (Special Operations Forces) assaulters/operators every time we see see them, and their new WetWorX Maritime Assault Gloves are certainly no exception. Basically, the they’re combat/tactical shooting gloves for the water, and they come in both warm weather AND cold weather variants. DefenseReview (DR) was actually surprised at how reasonably priced they are, at $49.00 USD, as of this writing.
Both sets of gloves looked very well designed and made to us, which isn’t surprising. Aesthetically/visually, we particularly dug the mesh warm-weather WetWorX Maritime Assault Gloves, since we liked the perforated/ventilated look, but both are nice. DR also likes that both models incorporate “wrap-up index finger sidewall for enhanced trigger feel” for combat/tactical shooting and “‘Gripmax’ thumb construction with conductive material [on thumb and index finger]”, which means the gloves give you “grip where you need it” and “conduction where you need it” for operating you smartphone or tablet computer. the S&S Precision WetWorx Maritime Assault Gloves are also designed to be very comfortable, as well as durable.
Defense Review also like the fact that they go on and off quick, just like a batting glove.
The following information on the WetWorX Maritime Assault Gloves comes from the S&S Precision website:
WETWORX WARM WEATHER MARITIME ASSAULT GLOVES
$49.00
SKU WW-WMAG
When we started the WetWorX Maritime Assault Gloves, the very first thing we wanted to ensure was the user wouldn’t feel a great disparity between their warm water and cold water gloves. Our materials were carefully chosen to provide significant commonality between the warm & cold gloves, while maintaining the climate centered traits necessary to operate in a wide variety of environments. Paying close attention to the human factors and ergonomics associated with maritime operations, we have produced gloves with outstanding wet grip, tactility, and range of motion. Built into the WetWorX gloves is the durability needed for hot climate operations and the heat retaining traits needed for cold water operations. Grab a set and see for yourself, you won’t be disappointed.
Athletic-inspired grip and dexterity in a maritime assault glove. The WetWorX warm weather glove is for hand protection in warmer wet environments where the textured grip hold and confidence are required, but a quick drying time is essential.
– “Gripmax” thumb construction with conductive material = grip
where you need it, conductive where you need it
– Batting glove hook and loop wrist closure = easy don and doff
– Single layer .8mm embossed grip textured palm = enhanced wet grip
– Open mesh and durable water repellent treatment = quick dry time
– Seamless back of hand construction = longer wear time comfort
– Wrap-up index finger sidewall = enhanced trigger feel
– Conductive index finger
– Wrap over fingertip construction = better sense of touch
– Keyhole thumb construction = increased articulation
WETWORX COLD WEATHER MARITIME ASSAULT GLOVES
$49.00
SKU WW-CMAG
When we started the WetWorX Maritime Assault Gloves, the very first thing we wanted to ensure was the user wouldn’t feel a great disparity between their warm water and cold water gloves. Our materials were carefully chosen to provide significant commonality between the warm & cold gloves while maintaining the climate centered traits necessary to operate in a wide variety of environments. Paying close attention to the human factors and ergonomics associated with maritime operations, we have produced gloves with outstanding wet grip, tactility, and range of motion. Built into the WetWorX gloves is the durability needed for hot climate operations and the heat retaining traits needed for cold water operations. Grab a set and see for yourself, you won’t be disappointed.
The WetWorX cold weather glove combines the warmth of 2mm neoprene and wind resistant patches with a textured grip for enhanced wet environment hold and confidence.
– “Gripmax” thumb construction with conductive material = grip where
you need it, conductive where you need it
– Batting glove hook and loop wrist closure = easy don and doff
– Single layer .8mm embossed grip textured palm = enhanced wet grip
– Laminated wind resistant patches = increased warmth
– Wrap over fingertip construction = better sense of touch
– Seamless back of hand construction = longer wear time comfort
– Wrap-up index finger sidewall = enhanced trigger feel
– Conductive index finger
– Keyhole thumb construction = increased articulation
– Gasketed at wrist to prevent flushing = warmer hands
Company Contact Info:
S&S Precision
2504 Squadron Ct, Unit 110
Virginia Beach, VA 23453
Phone: 757-453-6695
Email Contact Page: https://www.sandsprecision.com/contacts/
Website: https://www.sandsprecision.com
Autoritățile germane au acuzat un cetățean tunisian cu construirea unei arme biologice, după ce a găsit cantități semnificative de substanță ricină foarte toxică în apartamentul său
Noi sisteme care disting între forțele inamice și cele prietenoase au fost expuse de o companie israeliană
Acele arme se încruntă cu adevărat. Cu toate acestea, Lantac pare să facă niște pistoale Glock 17 (G17) și Glock 19 (G19) Grid 19 (G19) destul de slick și Razorback, care merită verificate, bazându-ne pe întâlnirea cu SHOT Show 2018. La urma urmei, nu există prea multe pistoale personalizate / personalizate Glock în colecția ta. Pur și simplu nu puteți exagera în această privință.
DefenseReview (DR) readers may already be aware that the Nous Defions Arsenal Democracy custom Glock-type pistols are currently our favorite Glock-type pistols, and that our latest favorite is their ND-AD Blackside 19MC (Mayhem Carry) compact 9mm combat/tactical Glock 19 (G19)-type pistol with SWiTCH Trigger and Mayhem Syndicate Carry Compensator Mk2. Well, if they aren’t (aware of that), they are now. Those guns really rock. However, Lantac would appear to be making some pretty slick Razorback complete custom Glock 17 (G17) and Glock 19 (G19) pistols and slide groups as well that are definitely worth checking out, based on our encounter with them at SHOT Show 2018.. After all, there’s no such thing as too many custom/customized Glock pistols in your collection. You simply can’t overdo it in that regard.
So, it was with that spirit that DR asked Jamie Franks of Lantac to take us through their latest and greatest Glock products at the booth, and we really liked what we saw, particularly the gun(s) set up with a suppressor-ready threaded barrel that was also crowned (nice touch). Everything felt and looked good on the Lantac Glocks that we handled, particularly the one shown in DR’s video below. Everything on that gun looked well-curated/chosen, including the Trijicon RMR red dot sight combat optic, which comes with both the complete pistol and complete slide packages.
Lantac also makes their own branded parts for Glock pistols, and all of those look interesting, as well.
Editor’s Note: Defense Review hasn’t shot the Lantac guns yet, so we’re only going off the guns’ feel and aesthetics at the moment, but both of those bode well for them. Our primary caveat at present is the reliability/durability of the Lantac E-CTG9 Upgrade Glock 17/19 Gen1-4 Trigger, since there are supposed high-end aftermarket Glock triggers out there that are a bit lacking in that aspect, particularly under hard use and high round count. The E-CTG9 may be terrific. We just don’t know yet.
Company Contact Info:
LANTAC USA LLC
1300 Forum Way, Suite B
Fort Worth, Texas 76140
Phone: 1.817.420.6011
Email: [email protected]
Website: https://www.lantac-usa.com
Prima aplicație de produs pe care am dezvoltat-o folosind tehnologia noastră compozită GCL este armura de corp flexibilă
Grafenul este un material foarte conductiv care ar putea fi folosit pentru a acoperi orice suprafață. Înțelegerea modului în care comportamentul său variază în funcție de substratul pe care este pus este esențial pentru aplicațiile sale viitoare, mai ales în domeniul neurologic”, continuă Scaini proprietățile unice ale grafenului este natural să se gândească, de exemplu, la dezvoltarea unor electrozi inovatori de stimulare cerebrală sau dispozitive vizuale „.Grafenul este cel mai subțire material bi-dimensional disponibil astăzi, caracterizat de proprietăți incredibile ale conductivității, flexibilității și transparenței. Deși există așteptări mari pentru aplicațiile sale în domeniul biomedicalei, foarte puține lucrări au analizat interacțiunile cu țesutul neuronal.
| Posted: Jun 12, 2018 | |
Neurons communicate better with graphene carpets(Nanowerk News) A work led by SISSA and published in Nature Nanotechnology („Single-layer graphene modulates neuronal communication and augments membrane ion currents”) reports for the first time experimentally the phenomenon of ion ‘trapping’ by graphene carpets and its effect on the communication between neurons. |
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| The researchers have observed an increase in the activity of nerve cells grown on a single layer of graphene. Combining theoretical and experimental approaches they have shown that the phenomenon is due to the ability of the material to ‘trap’ several ions present in the surrounding environment on its surface, modulating its composition. | |
| Graphene is the thinnest bi-dimensional material available today, characterised by incredible properties of conductivity, flexibility and transparency. Although there are great expectations for its applications in the biomedical field, only very few works have analysed its interactions with neuronal tissue. | |
| A study conducted by SISSA – Scuola Internazionale Superiore di Studi Avanzati, in association with the University of Antwerp (Belgium), the University of Trieste and the Institute of Science and Technology of Barcelona (Spain), has analysed the behaviour of neurons grown on a single layer of graphene, observing a strengthening in their activity. | |
| Through theoretical and experimental approaches the researchers have shown that such behaviour is due to reduced ion mobility, in particular of potassium, to the neuron-graphene interface. This phenomenon is commonly called ‘ion trapping’, already known at theoretical level, but observed experimentally for the first time only now. | |
| „It is as if graphene behaves as an ultra-thin magnet on whose surface some of the potassium ions present in the extra cellular solution between the cells and the graphene remain trapped. It is this small variation that determines the increase in neuronal excitability” comments Denis Scaini, researcher at SISSA who has led the research alongside Laura Ballerini. | |
| The study has also shown that this strengthening occurs when the graphene itself is supported by an insulator, like glass, or suspended in solution, while it disappears when lying on a conductor. | |
| „Graphene is a highly conductive material which could potentially be used to coat any surface. Understanding how its behaviour varies according to the substratum on which it is laid is essential for its future applications, above all in the neurological field” continues Scaini, „considering the unique properties of graphene it is natural to think for example about the development of innovative electrodes of cerebral stimulation or visual devices”. | |
| It is a study with a double outcome. Laura Ballerini comments as follows: „This ‘ion trap’ effect was described only in theory. Studying the impact of the ‘technology of materials’ on biological systems, we have documented a mechanism to regulate membrane excitability, but at the same time we have also experimentally described a property of the material through the biology of neurons.” |
| Source: Scuola Internazionale Superiore di Studi Avanzati (SISSA) |
Oamenii de știință de la EPEL au dezvăluit o modalitate rapidă și eficientă de a genera fibre super-elastice de înaltă performanță care pot fi utilizate într-o varietate de aplicații
Graphene Composites (GC) se apropie acum de ținta de finanțare a celei de-a patra campanii
Există o cerere imensă pentru noile tehnologii de detectare în infraroșu cu sensibilitate ridicată. Această lucrare a lui Efetov și co-lucrătorilor care raportează un bolometru inovator de grafen, integrat într-o cavitate de cristal fotonic pentru a obține o absorbție ridicată, este oportună și interesantă.
| Posted: Jun 11, 2018 | |
New graphene bolometer is faster, simpler, and covers more wavelengths(Nanowerk News) Bolometers, devices that monitor electromagnetic radiation through heating of an absorbing material, are used by astronomers and homeowners alike. But most such devices have limited bandwidth and must be operated at ultralow temperatures. Now, researchers say they’ve found a ultrafast yet highly sensitive alternative that can work at room temperature — and may be much less expensive. |
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| The findings, published in the journal Nature Nanotechnology („Fast thermal relaxation in cavity-coupled graphene bolometers with a Johnson noise read-out”), could help pave the way toward new kinds of astronomical observatories for long-wavelength emissions, new heat sensors for buildings, and even new kinds of quantum sensing and information processing devices, the multidisciplinary research team says. The group includes recent MIT postdoc Dmitri Efetov, Professor Dirk Englund of MIT’s Department of Electrical Engineering and Computer Science, Kin Chung Fong of Raytheon BBN Technologies, and colleagues from MIT and Columbia University. | |
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| Schematic illustration of the experimental setup. (Image: Courtesy of the researchers) | |
| “We believe that our work opens the door to new types of efficient bolometers based on low-dimensional materials,” says Englund, the paper’s senior author. He says the new system, based on the heating of electrons in a small piece of a two-dimensional form of carbon called graphene, for the first time combines both high sensitivity and high bandwidth — orders of magnitude greater than that of conventional bolometers — in a single device. | |
| “The new device is very sensitive, and at the same time ultrafast,” having the potential to take readings in just picoseconds (trillionths of a second), says Efetov, now a professor at ICFO, the Institute of Photonic Sciences in Barcelona, Spain, who is the paper’s lead author. “This combination of properties is unique,” he says. | |
| The new system also can operate at any temperature, he says, unlike current devices that have to be cooled to extremely low temperatures. Although most actual applications of the device would still be done under these ultracold conditions, for some applications, such as thermal sensors for building efficiency, the ability to operate without specialized cooling systems could be a real plus. “This is the first device of this kind that has no limit on temperature,” Efetov says. | |
| The new bolometer they built, and demonstrated under laboratory conditions, can measure the total energy carried by the photons of incoming electromagnetic radiation, whether that radiation is in the form of visible light, radio waves, microwaves, or other parts of the spectrum. That radiation may be coming from distant galaxies, or from the infrared waves of heat escaping from a poorly insulated house. | |
| The device is entirely different from traditional bolometers, which typically use a metal to absorb the radiation and measure the resulting temperature rise. Instead, this team developed a new type of bolometer that relies on heating electrons moving in a small piece of graphene, rather than heating a solid metal. The graphene is coupled to a device called a photonic nanocavity, which serves to amplify the absorption of the radiation, Englund explains. | |
| “Most bolometers rely on the vibrations of atoms in a piece of material, which tends to make their response slow,” he says. In this case, though, “unlike a traditional bolometer, the heated body here is simply the electron gas, which has a very low heat capacity, meaning that even a small energy input due to absorbed photons causes a large temperature swing,” making it easier to make precise measurements of that energy. Although graphene bolometers had previously been demonstrated, this work solves some of the important outstanding challenges, including efficient absorption into the graphene using a nanocavity, and the impedance-matched temperature readout. | |
| The new technology, Englund says, “opens a new window for bolometers with entirely new functionalities that could radically improve thermal imaging, observational astronomy, quantum information, and quantum sensing, among other applications.” | |
| For astronomical observations, the new system could help by filling in some of the remaining wavelength bands that have not yet had practical detectors to make observations, such as the “terahertz gap” of frequencies that are very difficult to pick up with existing systems. “There, our detector could be a state-of-the-art system” for observing these elusive rays, Efetov says. It could be useful for observing the very long-wavelength cosmic background radiation, he says. | |
| Daniel Prober, a professor of applied physics at Yale University who was not involved in this research, says, “This work is a very good project to utilize the many benefits of the ultrathin metal layer, graphene, while cleverly working around the limitations that would otherwise be imposed by its conducting nature.” He adds, “The resulting detector is extremely sensitive for power detection in a challenging region of the spectrum, and is now ready for some exciting applications.” | |
| And Robert Hadfield, a professor of photonics at the University of Glasgow, who also was not involved in this work, says, “There is huge demand for new high-sensitivity infrared detection technologies. This work by Efetov and co-workers reporting an innovative graphene bolometer integrated in a photonic crystal cavity to achieve high absorption is timely and exciting.” |
| Source: By David Chandler, MIT |
