Results 91 to 100 of about 2,942 (199)

Determination of ballistic properties of densified reinforced laminated wood material

open access: yesEngineering Science and Technology, an International Journal
The aims of this study is to determine the ballistic properties of densified, reinforced, and laminated wood material. For this purpose, the samples obtained from Uludağ Fir (Abies nordmanniana subsp.
İlker Yalçın, Raşit Esen
doaj   +1 more source

Mission Design and Early Navigation Operations for the Lunar Trailblazer Mission

open access: yesEarth and Space Science, Volume 13, Issue 7, July 2026.
Abstract Lunar Trailblazer is a smallsat mission launched on 27 February 2025 as a secondary payload with the Intuitive Machines IM‐2 mission. After insertion into a near‐polar circular orbit around the Moon, the mission's goal was to search and characterize lunar water, primarily looking for ice in permanently shadowed craters and water bound in ...
Gregory Lantoine   +13 more
wiley   +1 more source

Formation of Compact Aggregate Piles on a Surface Through Dissipation of Kinetic Energy Associated With Horizontal Motion

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract Accumulation of dust on the Lunar and Martian surfaces plays a critical role in both surface evolution and human exploration efforts, limiting equipment lifetimes and obscuring optical surfaces. Yet, the underlying physics of surface soiling is still poorly understood.
G. Griffin   +3 more
wiley   +1 more source

A Different Position: Protest Medicine and the Limits of Professional Neutrality

open access: yesSociology of Health &Illness, Volume 48, Issue 6, July 2026.
ABSTRACT Protests are a persistent feature of contemporary urban life, often producing mass injuries through police repression. Yet the role of medical care in these contexts—especially when provided by informal collectives—remains understudied. Drawing on 21 in‐depth interviews with members of volunteer medical brigades during Chile's 2019–2020 ...
Cristian Montenegro
wiley   +1 more source

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

open access: yesAmerican Journal of Political Science, Volume 70, Issue 3, Page 925-945, July 2026.
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

Static recrystallization of shocked calcite in Ries impact breccias

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 7, Page 1456-1473, July 2026.
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

Rapid Torque Production of the Knee Extensors: An Integrative Analysis of Neuromuscular and Muscle–Tendon Determinants

open access: yesScandinavian Journal of Medicine &Science in Sports, Volume 36, Issue 7, July 2026.
ABSTRACT The physiological determinants of explosive strength are usually investigated separately. We aimed to quantify the relative contributions of muscle excitation, structural, and mechanical determinants of rapid torque production in the knee extensors in a multi‐domain framework.
Francesco Salvaggio   +9 more
wiley   +1 more source

Enhancing the Performance of Materials in Ballistic Protection Using Coatings—A Review

open access: yesTechnologies
The continuous advancement of modern weaponry has intensified the pursuit of next-generation ballistic protection systems that integrate lightweight architectures, superior flexibility, and high energy absorption efficiency.
Georgiana Ghisman Alexe   +3 more
doaj   +1 more source

Ballistic protection materials a moving target

open access: yesReinforced Plastics, 2006
Reinforced polymeric composites have offered advantages in armour systems since World War II. Vicki P. McConnell finds that new combat conditions and higher threat levels are challenging fibre chemistry in this growing market.
openaire   +1 more source

Recent advancements in ballistic protection - a review

open access: yesJournal of Student Research
This research review paper describes the historical evolution of protective armor and then delves into current methods of producing effective ballistic protection. It investigates the potential of natural fiber reinforced polymer composites, such as kenaf and ramie. Then, it discusses the exploration of 3D printed body armor, which can take on tailored
openaire   +1 more source

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