Results 121 to 130 of about 2,243,701 (264)

Regeneration Strategies in Seed Plants: A Continuum Shaping Survival

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
Seed plants dominate terrestrial ecosystems in part because regeneration is not a single event, but a coordinated sequence of traits acting across time and space. Here, we synthesize regeneration strategies in seed plants as a continuous, integrated framework spanning pre‐germination regulation, germination timing, seedling emergence, soil seed banking,
Keyvan Maleki, Elias Soltani
wiley   +1 more source

INFLUENCE OF LAYER ORIENTATION ON THE EFFECTIVENESS OF BALLISTIC PROTECTION

open access: yes, 2014
65 s. :il., tab., grafy +CD ROMCílem práce je zjistit, zda má orientace materiálu v balistické ochraně vliv na její účinnost. Úvod práce je zaměřen na historii balistických vest a důvod jejich nošení. Rešeršní část práce je věnována materiálům, z kterých
Mencáková, Michaela
core   +1 more source

Investigation of the ballistic performance of multi-material protection systems

open access: yes, 2022
International audienceBallistic protections usually result from an incremental and empirical approach and accordingly strongly depend on the experience and know-how of the manufacturer.
Longère, Patrice   +3 more
core   +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 system for military helicopters

open access: yesScientific Bulletin of Naval Academy, 2019
This article presents the importance of military helicopters and the need to protect them with a ballistic protection system against terrestrial threats. Current ballistic protection systems are in a permanent development by optimizing materials and protective structures and discovering new materials, in order to balance the variety of threats in the ...
openaire   +1 more source

Multi‐Dimensional Conductive Nanocomposites for Flexible Electronics

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 4, July 2026.
Multi‐dimensional conductive nanocomposites integrate 0D, 1D, and 2D nanomaterials through spatial structure regulation and interface engineering, achieving “1 + 1 > 2” synergistic effects. By leveraging 0D filling to reduce contact resistance, 1D bridging to construct continuous conductive paths, and 2D supporting to enhance mechanical stability ...
Tianyu Wang   +12 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

Ballistic protection worker industry commercial security

open access: yes, 2007
Seznámení se soudobou problematikou balistické ochrany pro různé funkce pracovník v Průmyslu komerční bezpečnosti. Pomocí schémat a obrazového materiálu zpracuji rozdělení balistické ochrany, její určení, materiál, konstrukci, princip funkce a způsoby ...
Ptáček, Michal
core  

Ballistic Protection of Military Shelters from Mortar Fragmentation and Blast Effects using a Multi layer Structure

open access: yes, 2019
In addition to its usage as a top attack ammunition in the battle field against troops, 120 mm mortar bomblethas been recently used in the terror attacks against military shelters and civil constructions.
T. Elshenawy, M. A. Seoud, G. Abdo
semanticscholar   +1 more source

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