Results 21 to 30 of about 6,303 (264)

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, Marina Carpineti, Fabio Giavazzi, Alberto Vailati   +3 more
doaj   +1 more source

Another tool in the experimental toolbox: On the use of aluminum as a substitute for chert in North American prehistoric ballistics research and beyond

North American archaeologist (Print), 2022
Experimental archaeology continues to mature methodologically and theoretically. Around the world, practitioners are increasingly using modern materials that would have been unavailable to prehistoric people in archaeological experiments.
Metin I. Eren, Lawrence Mukusha, Julie Lierenz, Michael Wilson, M. Bebber, Michael R. Fisch, Trent True, Michael Kavaulic, R. S. Walker, Briggs W. Buchanan, Alastair J. M. Key   +10 more
semanticscholar   +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

Numerical evaluation of an autofrettaged thick-walled cylinder under dynamically applied axially non-uniform internal service pressure distribution

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

Cylindro-Conical Mild Steel Projectile Impact on E-Glass Fiber Reinforced Laminated Composite Plate Including Delamination Analysis

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

ON THE QUANTITATIVE INVESTIGATION OF THE INTERMEDIATE BALLISTICS: VELOCITY MEASUREMENT OF THE MUZZLE FLOW

Proceedings of the 32nd International Symposium on Ballistics, 2022
In the context of intermediate ballistics, a thorough understanding of the muzzle flow is necessary to optimize the design of muzzle devices and long-range projectiles.
A. Moumen, B. Stirbu, J. Grossen, D. Laboureur, J. Gallant, P. Hendrick   +5 more
semanticscholar   +1 more source

Thermal decomposition and kinetics of plastic bonded explosives based on mixture of HMX and TATB with polymer matrices

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, Tirupati C. Sharma, Mahesh Kumar, Jaspreet Kaur Narang, Prateek Kishore, Alok Srivastava   +5 more
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

Results of experimental research of wound ballistics of separate types and calibers of modern bullets

Medičnì Perspektivi, 2021
There was made the analysis of wound ballistics of modern expansive bullets in comparison with shell bullets on 25 blocks of ballistic plasticine (ROMA PLASTILINA No.
V. I. Tsymbalyuk, I. Lurin, O. Usenko, K. Gumeniuk, S. G. Krymchuk, O. V. Gryshchenko, K. A. Lopatuk   +6 more
semanticscholar   +1 more source