Results 81 to 90 of about 1,963 (265)
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT The design of control systems for high‐agility mechanical systems operating in extreme environments is a significant challenge in nonlinear dynamics. This paper addresses the complex dynamic control problem of a hypersonic interceptor, modeled as a multi‐input multi‐output (MIMO) mechanical system characterized by strong aerodynamic cross ...
Mohammad Mahdi Soori +1 more
wiley +1 more source
Numerical investigations on the sabots discard process of an APFSDS at different angles of attack
The Journal of Engineering, 2018 Sabot asymmetric discard after the projectile being launched from the muzzle at various angles of attack and 4Ma is investigated. This is implemented by the coupling computational fluid dynamics (CFD) and six degrees-of-freedom exterior ballistic code ...
Zhengui Huang +4 more
doaj +1 more source
Oikos, EarlyView.Functional traits allow ecologists to synthesise general rules of community assembly. In joint species distribution modelling, traits are increasingly used to explain species–environment relationships, with the intention of being able to generalise predictions to other species in other systems.
Hao Ran Lai +4 more
wiley +1 more source
Hitting a bullet with a bullet: an analysis of colliding bullets using experimental data and explicit simulation methods [PDF]
Royal Society Open ScienceA method to simultaneously fire and achieve a nose-to-nose collision of two bullets was created and compared to simulated results. This research focused on symmetric Taylor impact test techniques applied to 45-caliber Hornady 45177 full metal jacket (FMJ)
Destin Wilson Sandlin, Jason Cassibry
doaj +1 more source
Polymer Composites, EarlyView.Radiation shielding behavior of B4C‐reinforced UHMWPE composites. ABSTRACT The present study investigates the radiation shielding performance of ultra‐high molecular weight polyethylene (UHMWPE) composites reinforced with varying boron carbide (B4C) contents against low‐energy X‐rays through combined experimental and computational approaches.
Elif Altındaş +4 more
wiley +1 more source
Polymer Composites, EarlyView.Multiscale modeling for dynamic installatioin. ABSTRACT The dynamic installation of metal interference bushings has demonstrated significant potential for improving the mechanical performance of carbon fiber‐reinforced polymer (CFRP) joints. However, the underlying mechanisms governing the remaining life enhancement remain insufficiently understood ...
Yingjiang Guo +4 more
wiley +1 more source
Propellants, Explosives, Pyrotechnics, EarlyView.ABSTRACT Measuring impulse from explosive charges in contact and near‐field configurations presents practical challenges due to wide variation in impulse magnitude. Ballistic pendula are widely used for impulse measurement, but many existing designs are limited to narrow operating envelopes or are poorly suited to repeated contact testing and tamped ...
R. Alford +3 more
wiley +1 more source
Direct Measurement of Explosive Impulse From Contact to the Ultra‐Near Field
Propellants, Explosives, Pyrotechnics, EarlyView.ABSTRACT Measurement of impulse from explosive charges in contact and ultra‐near‐field regimes remains poorly characterised due to the short duration of loading, high strain rates, and the difficulty of obtaining direct momentum‐based measurements.
R. Alford +3 more
wiley +1 more source
Small, EarlyView.A one‐step oblique angle reactive sputtering approach enables simultaneous tuning of bulk and interfacial stoichiometry in a metal oxide/ silicon heterojunction. In case of vanadium oxides, growth angle variation controls the formation of stoichiometric SiO2, ternary SiOx(V) interlayer, and phase purity of vanadium oxide, considerably simplifying the ...
Aparajita Mandal +3 more
wiley +1 more source
Re‐Emergent Postural Tremor Without Clinical Resting Tremor in Parkinson's Disease—A Case Report
Movement Disorders Clinical Practice, EarlyView.
Kevin R.E. van den Berg, Rick C. Helmich
wiley +1 more source