Results 61 to 70 of about 2,936 (191)

Synthesis and Characterization of an Azido Nitrofurazanyl Ether: An Energy‐Rich Heterocyclic Plasticizer With a Low Glass Transition Temperature

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT We report on the synthesis and characterization of 3‐(2‐(2‐azidoethoxy)ethoxy)‐4‐nitro‐1,2,5‐oxadiazole (NFPEG2N3), which is a liquid nitrofurazanyl ether that was designed to be an energy‐rich plasticizer for glycidyl azide polymer (GAP)‐ and nitrocellulose (NC)‐based formulations.
P. Lieber, A. Omlor, U. Schaller, T. M. Klapötke   +3 more
wiley   +1 more source

The Use of Resistant Glass in Special Agricultural Machinery and the Logistic Support Depending on Operating Temperatures

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2017
The paper is concerned with quality assessment of bullet‑resistant glass in relation to ambient temperatures. The measurement results provided below may be drawn on in the field of logistics when transport, special as well as special agricultural ...
Tomáš Binar, Jiří Švarc, Stanislav Rolc, Petr Dostál, Michal Šustr   +4 more
doaj   +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, R. Hazael, R. Critchley, L. Humphreys   +3 more
wiley   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

Crash Behavior of DP800–DP1000 Advanced High‐Strength Steel’s Dissimilar Resistance Spot Welded Joints Under Quasi‐static and High Strain Rates

steel research international, EarlyView.
The high‐strain‐rate behavior of resistance spot‐welded DP800–DP1000 joints is investigated. Results show that microstructural gradients across BM–HAZ–FZ govern hardness, strain rate sensitivity, and failure modes. While strength increases with strain rate, energy absorption is controlled by ductility, with DP800–DP800 joints showing superior ...
Pankaj Shrivastava, Velaphi Msomi
wiley   +1 more source

Optimizing Viscoelastic Properties of Rubber Compounds for Ballistic Applications

Applied Sciences, 2020
Using interlayers of rubber adds a positive effect to the synergy of disruptor–absorber armors. Emerging from its viscoelasticity the material is able to transform mechanical stress into heat.
Janis Karl, Franziska Kirsch, Norbert Faderl, Leonhard Perko, Teresa Fras   +4 more
doaj   +1 more source

Sharp force trauma analysis without animal bones: A proposal for sustainable and ethical bone proxies

Journal of Forensic Sciences, EarlyView.
Abstract Sharp force trauma has been the leading cause of homicide in England and Wales for more than a decade. Experimental research on sharp force trauma frequently relies on animal bone as a substitute for human remains, yet their ethical acceptability and comparability to human bone remain contested.
Beth Lawrence, Giada Sciâdi Steiger, Matteo Borrini   +2 more
wiley   +1 more source

Ballistic Performance of Natural Fiber Based Soft and Hard Body Armour- A Mini Review

Frontiers in Materials, 2020
Increase in awareness towards utilization of eco-friendly materials, encouraged the researchers to find a sustainable alternative to synthetic fibers for different engineering applications.
J. Naveen, K. Jayakrishna, Mohamed Thariq Bin Hameed Sultan, Mohamed Thariq Bin Hameed Sultan, Mohamed Thariq Bin Hameed Sultan, Mohamed Thariq Bin Hameed Sultan, Siti Madiha Muhammad Amir   +6 more
doaj   +1 more source

The Dual‐Use Conundrum of the Lisbon Treaty Regarding Space Governance: Solutions Through International Legal Interpretation?

Global Policy, EarlyView.
ABSTRACT An inherent divide features within the Lisbon Treaty between civilian and military/security competences; something previously more obvious via the ‘pillar system's’ separations. This division follows the Member States (MS) (natural) protection of their military/defence autonomy; their core sovereign powers.
Charlie J. P. Bennett
wiley   +1 more source

The Unintended Consequences of German Deterrence

Global Policy, EarlyView.
ABSTRACT Germany's evolving deterrence posture boils down to continued participation in NATO nuclear sharing and an ambitious conventional rearmament program. Due to its non‐nuclear status and a result of decades of underinvestment, Germany prioritizes modern conventional weapons.
Ulrich Kühn
wiley   +1 more source