Results 21 to 30 of about 6,899 (279)
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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External Ballistics Simplified Model of the “RT – 400” Rocket Aerial Target [PDF]
Problemy Mechatroniki, 2018 “RT-400” rocket aerial target system is described in the paper; research method of its simplified external ballistics characteristics is presented and the obtained results are discussed.
Algimantas FEDARAVIČIUS +3 more
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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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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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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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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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, 2023 Forensic ballistics Abstract The topic of this thesis is forensic ballistics, a technical forensic method, examining firearms, ammunition and other conditions of committing a crime using a firearms for criminalistic purposes.
Valter, Miroslav
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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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