Results 11 to 20 of about 597 (199)
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
openaire +2 more sources
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Firearms and ballistics. [PDF]
, 2016 Chapter 7 of the book entitled 'Practical Veterinary Forensics' aims to introduce forensic veterinarians to the scientific concepts underpinning the field of firearms and ballistics. This introduction will enable practitioners to understand wound formation depending on the firearm and ammunition used.
BOLTON-KING, Rachel, Schulze, Johan
openaire +1 more source
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
doaj +1 more source
European Mechanical Science, 2021 Computational impact analysis of an E-glass fiber reinforced laminated composite structure with a conical nose shaped projectile is performed including delamination analysis.
Hande Yavuz
doaj +1 more source
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
doaj +1 more source