Results 11 to 20 of about 25,141 (308)
Strain hardening and shock mitigation response of polyurethane under high strain rates
AIP Advances, 2021 Polyurethane is a promising candidate for the potting of embedded electronics due to its shock absorbing properties. This paper discusses the less known strain hardening and shock mitigation properties of 4,4′-methylenediphenyl diisocyanate based ...
Amandeep Singh +5 more
doaj +1 more source
Géosciences, 2023 Between 2020 and 2022, more than sixty lava fountains occurred at Mt. Etna (Italy), which formed high eruption columns rising up to 15 km above sea level (a.s.l.). During those events, several ballistics fell around the summit craters, sometimes reaching
Giorgio Costa +4 more
semanticscholar +1 more source
Continuum Mechanics and Thermodynamics, 2023 Using the possibilities of modern science and technology, it can be said that the presented mathematical model has been formulated without significant simplifications, and its (numerical) solution itself will be performed with high accuracy.
Filip Kagankiewicz, M. Magier
semanticscholar +1 more source
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
R. Guerra +3 more
openaire +5 more sources
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
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
Multimedia tools and applications, 2022 A crime scene can provide valuable evidence critical to explain reason and modality of the occurred crime, and it can also lead to the arrest of criminals.
Luca Guarnera +5 more
semanticscholar +1 more source
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
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
doaj +1 more source
Heat Transfer Modelling and Simulation of a 120 mm Smoothbore Gun Barrel During Interior Ballistics
Defence Science Journal, 2022 Understanding the heat transfer phenomenon during interior ballistics and consequently presenting a realistic model is very important to predict the temperature distribution inside the cannon barrel, which influences the gun wear and the cook-off ...
Ç. Susantez, A. B. Caldeira
semanticscholar +1 more source