Results 51 to 60 of about 2,145,348 (216)

A New Anthropomorphic Mannequin for Efficacy Evaluation of Thoracic Protective Equipment Against Blast Threats

Frontiers in Bioengineering and Biotechnology, 2022
Exposure to blast is one of the major causes of death and disability in recent military conflicts. Therefore, it is crucial to evaluate the protective capability of the ballistic-proof equipment worn by soldiers against the effects of blast overpressure (
Johanna Boutillier, Venetia Cardona, Pascal Magnan, Michael Ogier, Sébastien De Mezzo, Florent Montespan, William Menini, Joël Mosnier, Pierre Naz, Nicolas J. Prat   +9 more
doaj   +1 more source

Recent Advances in Exosome‐Based Nanodelivery Systems for Traumatic Brain Injury Treatment

Med Research, EarlyView.
An overview of functional modification, therapeutic effects, molecular composition, and delivery strategies for exosomes. ABSTRACT Traumatic brain injury (TBI) is a highly heterogeneous neurological condition with extremely high rates of mortality and disability.
Jue Zhu, Weiquan Liao, Ziqi Lian, Mengdan Zhang, Chenxing Wang, Xingjia Zhu, Lin Zhang, Jian Chen, Zhichao Lu, Peipei Gong   +9 more
wiley   +1 more source

Radiation Shielding Performance of B4C‐Reinforced Ultra‐High Molecular Weight Polyethylene Composites Against Low‐Energy X‐Rays: Experimental and Computational Analysis

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, Yalçın Kalkan, Gozde Celebi Efe, Aysun Ayday, Tuba Yener   +4 more
wiley   +1 more source

Natural fiber reinforced polymer composites for ballistic protection: Design, performance, and challenges

Results in Materials
The increasing demand for sustainable and lightweight materials in defense and security applications has driven the development of natural fiber-reinforced polymer composites (NFRPCs) for ballistic protection.
Md. Syduzzaman, Salman Enayet Chowdhury, Nadvi Mamun Pritha, Abir Hassan, Sajid Hossain   +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

Nitrogen-Rich 5,5'-Azotetrazolates: A Broad Spectrum of Technologically Accessible Gas-Generating Pyrotechnic Materials. [PDF]

ChemistryOpen
A series of ten 5,5′‐azotetrazolate salts with nitrogen‐rich bases is prepared and assessed as technologically accessible gas‐generating materials. Structural, safety, and ballistic evaluations reveal several compounds combining high bulk density, acceptable sensitivities, and favorable gas‐generation performance, highlighting the potential of ...
Votýpka A, Matyáš R, Mikuláštík J, Růžička A, Růžičková Z, Zigmund J, Labaj M, Adam M, Jalový Z.   +8 more
europepmc   +2 more sources

Preventing Plasma‐Induced Resist Hardening in Molybdenum Disulfide Transistors via Sacrificial Metal Mask Lithography

Small, EarlyView.
Photoresist (PR) residue significantly degrades the electrical performance of 2D semiconductors such as MoS2. In particular, the intrinsically ultrathin nature of these materials makes them highly susceptible to damage during conventional PR cleaning procedures.
Dahyeon Kim, Yanfeng Zhao, Sungyeon Kim, Seungchan Lee, Sangmin Eom, Tae Yeon Kim, Hyun Seok Lee, Joonki Suh, Byungjo Kim, Myungsoo Kim   +9 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

Ballistic design and testing of a composite armour reinforced by CNTs suitable for armoured vehicles

Defence Technology
This paper is investigating the use of composite armour reinforced by nanomaterials, for the protection of light armoured (LAV) and medium armoured military vehicles (MAV), and the interaction between the composite materials and high-performance ...
Evangelos Ch. Tsirogiannis, Evangelos Daskalakis, Mohamed H. Hassan, Abdalla M. Omar, Paulo Bartolo   +4 more
doaj   +1 more source

Preparing to Fight the ‘Wrong War’? Why the UK Defence Budget Must Focus More on ‘National Resilience’

The Political Quarterly, EarlyView.
Abstract This article argues that the current debate over defence spending in the United Kingdom is fundamentally flawed. Too much emphasis is being placed on preparing for a form of warfare with Russia that is unlikely to occur. As this article points out, the Russians actually want to avoid a traditional battlefield confrontation with NATO.
Rod Thornton
wiley   +1 more source