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Numerical Study on Ballistic Phenomena - Part Two

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2016
The study of ballistic phenomena (interior ballistics, exterior ballistics and terminal ballistics) is an activity that involves the use of complex and at the same time very expensive equipment.
Vasile BĂLAN, Marian BORDEI
doaj  

Computational fluid dynamics simulations of airflow through the nasal passages of rhinolophoid bats

The Anatomical Record, EarlyView.
Abstract The nasal passages of bats that emit their echolocation call through their nostrils have adapted for sound emission as well as standard respiratory and olfactory functions. Rhinolophids, hipposiderids and rhinonycterids all use a high duty cycle (HDC) echolocation strategy.
Carley Goodwin, Jason M. Bourke, Daisuke Koyabu, Kyle N. Armstrong, Vuong T. Tu, Thongchai Ngamprasertwong, Thanakul Wannaprasert, Laura A. B. Wilson   +7 more
wiley   +1 more source

Development of a Numerical Model of the 9 mm Parabellum FMJ Bullet Including Jacket Failure

Engineering Transactions, 2014
Even though ballistic experiments are widely accepted as the only reliable way to probe terminal effects, we demonstrate that computer simulation can be a useful alternative.
Ch. MARECHAL, F. BRESSON, G. HAUGOU
doaj   +1 more source

The use of gelatine in wound ballistics research

Zeitschrift für Rechtsmedizin, 2018
Blocks of gelatine are used in both lethality and survivability studies for broadly the same reason, i.e. comparison of ammunition effects using a material that it is assumed represents (some part of) the human body. The gelatine is used to visualise the
D. Carr, T. Stevenson, P. Mahoney
semanticscholar   +1 more source

Preventing wall deposition in duct flows: The role of particle number density and flow direction

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Particle deposition in wall‐bounded turbulent flows is a challenge in many industries, including pneumatic conveying, filtration, and related applications. When particles accumulate near boundaries, they reduce transport efficiency, alter near‐wall flow structures, and cause blockage.
Gizem Ozler, Holger Grosshans
wiley   +1 more source

Overcoming spectral limits of perovskite photodetectors for the infrared region

InfoScience, EarlyView.
Infrared (IR) photodetectors are vital for modern optoelectronics, but traditional inorganic semiconductors face limitations in cost, processing, and bandgap tunability. This review provides a summary of advanced strategies to extend metal halide perovskites into the IR region, categorizing approaches into intrinsic material engineering, physical ...
Jiean Li, Bobo Li, Mingxia Qiu, Wang Zhang, Xuan Fang   +4 more
wiley   +1 more source

The Application of Computational Thermo-Fluid-Dynamics to the Simulation of Hybrid Rocket Internal Ballistics with Classical or Liquefying Fuels: A Review

Aerospace, 2019
The computational fluid dynamics of hybrid rocket internal ballistics is becoming a key tool for reducing the engine operation uncertainties and development cost as well as for improving experimental data analysis.
G. D. Di Martino, C. Carmicino, S. Mungiguerra, R. Savino   +3 more
semanticscholar   +1 more source

Dignity's Dilemma: Categorical Objections to Autonomous Weapons and Their Pacifist Entailments

Journal of Applied Philosophy, EarlyView.
ABSTRACT Dignity objections to autonomous weapon systems are prominent in contemporary military ethics, yet their theoretical foundations remain underexamined. This article reconstructs those foundations, showing what categorical dignity objections require to function as absolute prohibitions.
Timothy Dubber
wiley   +1 more source

Projectile Seating Depth Influence on a Small Arms Cartridge Performance

Technologia i Automatyzacja Montażu
In the world of small-arms ammunition, precision reigns supreme. The most significant feature of ammunitionfor shootersis undoubtedly the repeatability from one shot to the next. This study exploresthe detailedassembly process of small arms
Krzysztof Piasta, Jakub Michalski, Bartosz Fikus, Przemysław Kupidura   +3 more
doaj   +1 more source

Stretch‐shortening cycle force–time and power–time waveform analysis indicates limitations of the contralateral limb benchmark in athletes with ACL injury

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Unilateral countermovement jump (CMJsingle) testing is commonly used after anterior cruciate ligament reconstruction (ACLR) to assess stretch‐shortening cycle (SSC) function and return‐to‐sport readiness. However, the impact of ACLR on contralateral limb SSC function is poorly understood, which may impact the utility of the ...
Shadan Al‐Saket, Zachary McClean, Nathan Boon‐van Mossel, Tanita Botha, Helen Bayne, Cassidy de França, Kati Pasanen, Matthew Jordan   +7 more
wiley   +1 more source