Results 71 to 80 of about 3,229 (238)

Complementarity in alliances: How strategic compatibility and hierarchy promote efficient cooperation in international security

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract How can defense alliances reap the efficiency gains of working together when coordination and opportunism costs are high? Although specializing as part of a collective comes with economic and functional benefits, states must bargain over the distribution of those gains and ensure the costs of collective action are minimized.
J. Andrés Gannon
wiley   +1 more source

Dynamic response of armor-piercing bullets to blunt and penetration with protective gelatin

open access: yesTheoretical and Applied Mechanics Letters
To investigate the coupled damage mechanism of blunt impact and bullets penetration after penetrating ballistic plates against human body targets, experiments were conducted using 6.8 mm caliber armor-piercing bullets against gelatin targets with ...
Rui Yuan   +5 more
doaj   +1 more source

Israel's Post‐War Healthcare Obligations

open access: yesBioethics, EarlyView.
ABSTRACT Since the beginning of the Israel–Hamas war in 2023, the healthcare infrastructure within Gaza has been dismantled. While international humanitarian law mandates distinction between lawful targets (combatants and military objectives) and non‐lawful targets (civilians and civilian objects), and acknowledging the inherent complexities of ...
Daniel J. Hurst, Christopher A. Bobier
wiley   +1 more source

Analysis ballistic impact modeling of multicomponent fabrics with jalaba structure

open access: yesMATEC Web of Conferences, 2018
Various textile materials have been employed in the past for protection against the ballistic with only limited satisfaction without realizing in underlying mechanism of ballistic impact.
Subagyo Asmanto
doaj   +1 more source

Static recrystallization of shocked calcite in Ries impact breccias

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Calcite is prone to chemical and microstructural modifications, especially after having been strained at high stresses and strain rates, as during hypervelocity impact events. These modifications include precipitation from pore fluid as well as replacement of strained volumes by recrystallization. In calcite aggregates of a metagranite breccia
Claudia A. Trepmann   +8 more
wiley   +1 more source

Mechanical Properties and Ballistic Performance for Different Coatings on HARDOX 450 Steel for Defense Applications

open access: yesCrystals
The aim of the current study is to investigate the mechanical properties and ballistic performance of HARDOX 450 steel for defense applications in different conditions: uncoated, alumina-coated, and LINE X polyurea-coated.
Cosmin Nicolescu   +7 more
doaj   +1 more source

Influence of the vacuum resin process, on the ballistic behaviour of lightweight armouring solutions

open access: yesEPJ Web of Conferences, 2012
The armour of vehicles against conventional threats is mainly composed with steel or aluminium panels. Efficient heavy solutions exist, but the involved industries require new lightweight structures.
Coutellier D.   +3 more
doaj   +1 more source

BALLISTIC PROTECTION MATERIALS

open access: yesTextile and Garment Magazine
Ballistic vests are composed of particular high performance clothing. They could be reinforced by one or two armor panels according to the protection level and are designed to resist to attacks intended to upper parts of the body to save lives of its wearers.
openaire   +1 more source

US‐Japan Alliance: Emmeshing Bilateralism Into Broader Multilateralism

open access: yesAsia &the Pacific Policy Studies, Volume 13, Issue 2, May 2026.
ABSTRACT In the 21st Century, geopolitical confrontation between the Eurasian continental powers and the sea powers works to divide Asia. The US‐Japan alliance has transformed itself from Japanʼs asymmetrical security dependence of the Cold War period into a mutual and more integrated partnership today.
Yoichiro Sato
wiley   +1 more source

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