Results 61 to 70 of about 1,963 (265)
Inspired by the Mexican jumping bean, this study presents a centimeter‐scale, electronics‐free robot that merges principles from both the animal and plant kingdoms. A thermo‐responsive actuator mimicking larval motion, enclosed within a uniquely shaped plant‐seed‐inspired shell, generates jumping, rolling, flipping, sliding, and climbing through ...
Ragesh Chellattoan +3 more
wiley +1 more source
Muzzle Brake Testing Method Based on the Example of an Anti-Materiel Rifle [PDF]
This article presents a comprehensive methodology for the design and analysis of muzzle brakes for firearms, demonstrated using the example of an anti-materiel rifle.
Kornel PIŁAT (kornel.pilat@pg.edu.pl)
doaj +1 more source
Computational fluid dynamics simulations of airflow through the nasal passages of rhinolophoid bats
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 +7 more
wiley +1 more source
Initial temperature influence on the powder speed combustion in the high pressure range
The initial temperature influence on the ballistics characteristics of powder is considered as well as the parameters of gas dynamics calculations. Analytical methods for thermal chemical and interior ballistics calculations are used.
Ljubiša Tančić
doaj +1 more source
Preventing wall deposition in duct flows: The role of particle number density and flow direction
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
Visible cameras are widely adopted low-cost instruments for volcano monitoring. Images can be used to characterize volcanic activity of variable intensity and style and to estimate key eruption source parameters that are essential for assessing volcanic ...
Alvaro Aravena +4 more
doaj +1 more source
Review of wound ballistic research and its applicability to wildlife management
Wound ballistics is a science that has been gaining attention in wildlife management because of the movement toward non‐lead bullets for hunting and wildlife management projects.
Joe N. Caudell
doaj +1 more source
Overcoming spectral limits of perovskite photodetectors for the infrared region
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 +4 more
wiley +1 more source
Numerical Study on Ballistic Phenomena - Part Two
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
Dignity's Dilemma: Categorical Objections to Autonomous Weapons and Their Pacifist Entailments
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

