Results 11 to 20 of about 1,916 (261)
Nature Materials, 2010 Sliding parts in nanosystems such as Nano ElectroMechanical Systems (NEMS) and nanomotors, increasingly involve large speeds, and rotations as well as translations of the moving surfaces; yet, the physics of high speed nanoscale friction is so far unexplored. Here, by simulating the motion of drifting and of kicked Au clusters on graphite - a workhorse
Guerra, R. +3 more
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Analysis of the Possibility of Elimination of Threats Resulting from the Modification of Bullet Trajectory after Hitting the Target in Garrison Shooting Ranges [PDF]
Problemy Mechatroniki, 2023 . During shooting operations in garrison shooting ranges, a phenomenon of random deflection of the bullet flight path was noticed which may cause secondary reflections from accidentally hit technical and ballistic shooting range elements and the ground ...
Józef GACEK +8 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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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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Experimental and Finite Element Studies on Man-Rifle Reaction Force [PDF]
Problemy Mechatroniki, 2017 The study concerns a man-weapon interaction during a gunshot. The recoil force measurements obtained for the Kalashnikov automatic rifle are presented and analyzed. The influence of shooter’s mass, height and position is described.
Cyprian SUCHOCKI, Janusz EWERTOWSKI
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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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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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Extent of Forensic Practices of Police Investigators: A Basis for Enhancement Plan
JPAIR, 2023 In criminal investigations, the Directorate for Investigation and Detective Management – Police investigators are required by Philippine National Police orders to conduct forensic science-based crime scene investigations.
Japhet Quiape, Ermee Joy Painaga
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Optimal control of propellant consumption during vertical lifting of rocket in homogeneous atmosphere using regularized solution of integral equation of the first kind [PDF]
INCAS Bulletin, 2020 The article is devoted to the study of the optimal control of propellant consumption during vertical lifting of rocket in homogeneous atmosphere using regularized solution of integral equation of the first kind.
Aleksey G. VIKULOV
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Perspective Armour-Piercing Intermediate Cartridge Projectile [PDF]
Problemy Mechatroniki, 2023 Ongoing military conflicts, along with a constant evolution of individual protection devices, have shown an urgent need of development in terms of the armour piercing capability of standard infantry small arms ammunition.
Krzysztof PIASTA, Przemysław KUPIDURA
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