Results 21 to 30 of about 1,904 (243)
Optica, 2020 We report the theoretical prediction and experimental realization of the optical phenomenon of “ballistic resonance.” This resonance, resulting from the interplay between free charge motion in confining geometries and periodic driving electromagnetic fields, can be utilized to achieve negative permittivity at frequencies well above the bulk plasma ...
Kun Li +6 more
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Smart membrane absorbing electromagnetic waves based on polyvinyl chloride/graphene composites
Materials Research Express, 2022 The rapid proliferation and intensive use of electronic devices have led to an increase in electronic pollution, such as electronic noise, electromagnetic interference (EMI), and radiofrequency interference (RFI), which cause malfunctions of electronic ...
Sabrina Bouriche +7 more
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Technologia i Automatyzacja Montażu, 2023 The continuous development of production and assembly techniques gives rise to the idea of followinga new approachin the small-arms ammunition design process.
Krzysztof Piasta +2 more
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Comparative analysis of different types of ballistic barrels used in the ammunition researches [PDF]
Biuletyn Wojskowej Akademii Technicznej, 2021 Manufacturers offer different types of ballistic barrels made in according to various standards. The paper presents comparison of three types of ballistic barrels: pressure, velocity and accuracy made according to C.I.P.
Dawid Goździk +2 more
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USE OF SODIUM RHODIZONATE IN FIREARM USE CASES: CAN IT BE USEFUL IN IDENTIFYING THE SHOOTER? [PDF]
Euromediterranean Biomedical Journal, 2023 The sodium rhodizonate test is a simple colorimetric technique used to identify traces of lead and barium. A positive test provides rapid and photographically documentable results for shots fired at distances not exceeding 50 cm.
Benedetta Pia De Luca
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Pronking and bounding allow a fast escape across a grassland populated by scattered obstacles
Royal Society Open Science, 2023 Some quadrupeds have evolved the ability of pronking, which consists in leaping by extending the four limbs simultaneously. Pronking is typically observed in some ungulate species inhabiting grassland populated by obstacles such as shrubs, rocks and ...
Francesco Righini +3 more
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Explicit form of the “modified point mass trajectory model” for the use in Fire Control Systems [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2020 The main objective of this article is to obtain equations of motion of the spin–stabilized projectile in the presence of non–constant wind. Introducing models allowing utilization of inhomogeneous wind is dictated by new possibilities created by the use ...
L. Baranowski, P. Majewski, J. Szymonik
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Defence Technology, 2018 A dynamical moving pressure structural numerical calculation model using the internal ballistics calculation pressure-time results was constituted and the vicinity of the internal ballistics and quasi-internal ballistics structural model was checked. The
Onur Güngör, Veli Çelik
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Bilim ve Teknoloji İlişkisine Dair Tarihsel Bir Perspektif
Üniversite Araştırmaları Dergisi, 2021 Bu çalışmada bilim ve teknoloji arasındaki ilişki tarihsel örnekler üzerinden değerlendirilmiştir. Bilim son zamanlarda genel olarak teknolojiyi de kapsayacak şekilde kullanılmasına karşın bu çalışmada bilimi teorik, teknolojiyi ise pratik insan ...
Vural Başaran
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Defence Technology, 2017 This work describes thermal decomposition behaviour of plastic bonded explosives (PBXs) based on mixture of l,3,5,7-tetranitro- 1,3,5,7-tetrazocane (HMX) and 2,4,6- triamino-1,3,5-trinitrobenzene (TATB) with Viton A as polymer binder.
Arjun Singh +5 more
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