Results 41 to 50 of about 8,247 (275)

Experimental and simulated research on the ballistic performance of Ti/AlTi laminate composites

Advanced Composites Letters, 2020
The metal-intermetallic laminate composite Ti/Al 3 Ti can be used as protective armor in aerospace and military applications, due to its low density, high strength, and superior impact-resistant performance.
Yang Cao, Siyuan Zhao, Limin Sun, Wenbin He, Jun Ma   +4 more
doaj   +1 more source

Testing of some Ballistic Experiments [PDF]

Nature, 1901
WHEN the Council of Military Education directed my attention to the science of ballistics in 1864, I came to the conclusion that a thoroughly good chronograph would solve all practical difficulties. The newly-invented instrument was first tried in 1865 with ten screens 120 feet apart, by the ue of a 12-pr. Armstrong B.L.
openaire   +2 more sources

Assessment and Measurment of Potential Blunt Trauma Under Ballistic Helmets [PDF]

, 2008
This paper investigates measurement techniques to evaluate ballistic impact protection in terms of head contact loads from non penetrating impacts on helmets.
Webb, Annette, Horsfall, Ian, Watson, Celia H.   +2 more
core  

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

Numerical and experimental analysis of the ballistic performance of soft bulletproof vests for women

AUTEX Research Journal
This article presents a comprehensive numerical and experimental analysis of the ballistic performance of soft bulletproof vests designed for women. The study involved a woman aged between 24 and 28 with a breast size of 85C.
Pinkos Justyna, Stempien Zbigniew, Grzegorska Karolina, Kulinska Maria, Smędra Anna   +4 more
doaj   +1 more source

Aramid composites impregnated with different reinforcement: Nanofibers, nanoparticles and nanotubes

Zaštita Materijala, 2014
In this study, the electrospun nanofibers, nanoparticles and nanotubes were used as reinforcement in order to improve mechanical properties of materials for ballistic protection.
Vera Obradović, Dušica Stojanović, Aleksandar Kojović, Irena Živković, Vesna Radojević, Petar Uskoković, Radoslav Aleksić   +6 more
doaj   +1 more source

Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films

Advanced Functional Materials, EarlyView.
This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge, Olivia Harper, Jaejun Lee, Sergio Gonzalez‐Munoz, Vladimir V. Tsukruk   +4 more
wiley   +1 more source

The influence of migration processes in gunpowder charge on the quality of mortar ammunition [PDF]

Hemijska Industrija, 2017
The study describes the results of static, physicochemical and ballistic examination of double-based gunpowder charges, in order to establish the deviations from the demanded quality of mortar ammunition.
Bobić Nikola R., Simonović Radovan S., Drmanić Saša Ž., Milić Stefan Z., Nikolić Jasmina B., Stoiljković Slaviša D., Terzić Nebojša S.   +6 more
doaj   +1 more source

Bluetooth Signal Attenuation Analysis in Human Body Tissue Analogues

IEEE Access, 2021
Wireless communications for ingestible and implantable medical device applications are integral for the embedded systems employed to these ends. The Bluetooth protocol is of major interest given its ubiquitous nature in consumer electronic devices.
Michael J. Christoe, Jinhong Yuan, Aron Michael, Kourosh Kalantar-Zadeh   +3 more
doaj   +1 more source

Near‐Unity Chiral Lasing Enabled by Quasi‐Bound States in the Continuum

Advanced Materials, EarlyView.
Nanoimprinted chiral array that supports bound states in the continuum is doped with an efficient non‐chiral molecule (Rhodamine‐B) acting as gain medium to produce fully circularly polarized lasing emission. The chiral lasing wavelength can be tuned across the emission band of Rhodamine‐B by adjusting the coating thickness of the TiO2 high refractive ...
Jose Mendoza‐Carreño, Luis A. Pérez, Carlota Ruiz De Galarreta, Théo Rouanet, M. Isabel Alonso, Agustín Mihi   +5 more
wiley   +1 more source