Results 21 to 30 of about 74,974 (232)

Influence of Dimensionality on Thermoelectric Device Performance [PDF]

open access: yes, 2008
The role of dimensionality on the electronic performance of thermoelectric devices is clarified using the Landauer formalism, which shows that the thermoelectric coefficients are related to the transmission, T(E), and how the conducing channels, M(E ...
Ashcroft N. W.   +4 more
core   +4 more sources

Ballistic performance and mechanism of B4C/Al laminated targets with different configurations

open access: yesJournal of Materials Research and Technology, 2023
The present paper explores the ballistic performance of B4C/6061Al laminated targets with the typical configurations of double-layer, sandwich and gradient impacted by 7.62 mm API projectile.
Run-wei Zhang   +11 more
doaj   +1 more source

Study on the protective performance of high-performance multi-scale (SiCh-p+B4Cp)/5083Al ceramic array armor with excellent ballistic properties

open access: yesJournal of Materials Research and Technology, 2023
Ceramic array armor suffers from insufficient constrained capability of ceramic units in the embedded armor structure, leading to weak interfacial bonding at ceramic unit connections, significantly reducing the overall ballistic performance.
S.Q. Du   +12 more
doaj   +1 more source

Extending ballistic graphene FET lumped element models to diffusive devices [PDF]

open access: yes, 2012
In this work, a modified, lumped element graphene field effect device model is presented. The model is based on the "Top-of-the-barrier" approach which is usually valid only for ballistic graphene nanotransistors.
Canali   +39 more
core   +3 more sources

The Effect of Particle Strength on the Ballistic Resistance of Shear Thickening Fluids

open access: yes, 2013
The response of shear thickening fluids (STFs) under ballistic impact has received considerable attention due to its field-responsive nature. While efforts have primarily focused on the response of traditional ballistic fabrics impregnated with fluids ...
Frost, David L.   +5 more
core   +1 more source

Simulation of the Spin Field Effect Transistors: Effects of Tunneling and Spin Relaxation on its Performance [PDF]

open access: yes, 2010
A numerical simulation of spin-dependent quantum transport for a spin field effect transistor (spinFET) is implemented in a widely used simulator nanoMOS.
Gao, Yunfei   +3 more
core   +3 more sources

The impact of the coupling relationship between projectile size and yarn dimension on the ballistic performance of plain weave fabric

open access: yesDefence Technology
Aramid fibers, due to their relatively high inter-yarn friction, high strength, high modulus, and other characteristics, have become a typical representative of flexible anti-ballistic materials in modern warfare. Current research on the anti-penetration
Kaiying Wang   +7 more
doaj   +1 more source

Maximum likelihood estimation in the context of a sub-ballistic random walk in a parametric random environment

open access: yes, 2014
We consider a one dimensional sub-ballistic random walk evolving in a parametric i.i.d. random environment. We study the asymptotic properties of the maximum likelihood estimator (MLE) of the parameter based on a single observation of the path till the ...
Falconnet, Mikael   +2 more
core   +2 more sources

Ballistic limit velocity of small caliber projectiles against SS400 steel plates: Live fire experiments and empirical models

open access: yesDefence Technology
This study presents the ballistic limit velocity of small caliber projectiles against SS400 steel plate derived from live-fire ballistic experiments. Four different small caliber projectiles were tested against SS400 steel plates of 9 mm, 10 mm, and 12 ...
Jong-Hwan Kim   +3 more
doaj   +1 more source

Experimental investigation of Ballistic capabilities in Carbon-Kevlar composites: Effects of weight and layer variations against 9 mm projectiles

open access: yesResults in Materials, 2023
The study aimed to investigate the ballistic capabilities of carbon-Kevlar composites, particularly for the design of ballistic vests against pistol bullets. carbon-Kevlar is known for its high strength, lightweight nature, and affordability, making it a
Tannachart Wantang   +2 more
doaj   +1 more source

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