Results 101 to 110 of about 28,757 (246)

Ballistic performance of TPU/steel configurations against spherical projectiles

AIP Advances
In this work, we numerically and experimentally investigate the ballistic performance of thermoplastic polyurethane (TPU)/steel configurations against spherical projectiles.
Ievgen Levadnyi, Fujia Liu, Yaodong Gu
doaj   +1 more source

Numerical simulation and machine learning framework approach for ballistic performance evaluation of aluminium structures

Results in Engineering
Understanding and accurately predicting the ballistic response behavior of structural materials is critical for the design and optimization of lightweight, high performance protective structures subjected to high velocity impact.
Tota Rakesh Kumar, Bodduru Kamesh, Jayant Giri, Mohammad Kanan, Dora Nagaraju, Javed Syed   +5 more
doaj   +1 more source

Modeling the Intermediate Flow Regime in Flow‐Compensated Intravoxel Incoherent Motion MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose The intravoxel incoherent motion (IVIM) model is commonly used to separate the effects of motion related to diffusion and blood microcirculation (perfusion) on the MR signal. Depending on the encoding time (T), it is possible to probe the different temporal regimes of blood motion, which resemble a ballistic flow at short T and a ...
Louise Rosenqvist, Mikael Montelius, Isabella M. Björkman‐Burtscher, Elina Petersson, Maria Ljungberg, Oscar Jalnefjord   +5 more
wiley   +1 more source

Static and Dynamic Mechanical Properties and Ballistic Behavior of 6061 Aluminum Alloy

Gaoya wuli xuebao
Aluminum alloys are widely used in aerospace, shipbuilding and high-tech fields due to their excellent mechanical properties. However, they often suffer dynamic impact loading during service.
Zhijian FENG, Menglei HU, Xuefeng ZHANG
doaj   +1 more source

Nonergodic dynamics of force-free granular gases

, 2015
We study analytically and by event-driven molecular dynamics simulations the nonergodic and aging properties of force-free cooling granular gases with both constant and velocity-dependent (viscoelastic) restitution coefficient $\varepsilon$ for particle ...
Bodrova, Anna, Chechkin, Aleksei V., Cherstvy, Andrey G., Metzler, Ralf   +3 more
core   +1 more source

Toward Optimized Intravoxel Incoherent Motion (IVIM) and Compartmental T2 Mapping in Abdominal Organs

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To quantitatively assess the bias in the intravoxel incoherent motions (IVIM)–derived pseudo‐diffusion volume fraction (f) caused by the differences in relaxation times between the tissue and fluid compartments, and to develop a two‐dimensional (b‐value‐TE) fitting approach for simultaneous T2 and IVIM parameter estimation along with ...
Julia Stabinska, Thomas A. Thiel, Hans‐Jörg Wittsack, Alexandra Ljimani, Helge J. Zöllner   +4 more
wiley   +1 more source

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

Defence 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, Xuan Zhou, Wenke Ren, Yiding Wu, Yilei Yu, Yi Zhou, Lizhi Xu, Guangfa Gao   +7 more
doaj   +1 more source

Design space for low sensitivity to size variations in [110] PMOS nanowire devices: The implications of anisotropy in the quantization mass

, 2008
A 20-band sp3d5s* spin-orbit-coupled, semi-empirical, atomistic tight-binding model is used with a semi-classical, ballistic, field-effect-transistor (FET) model, to examine the ON-current variations to size variations of [110] oriented PMOS nanowire ...
Gerhard Klimeck, Gerhard Klimeck, Neophytos Neophytou, Neophytos Neophytou, Purdue E-pubs   +4 more
core   +3 more sources

Kinetic Compensation of Barrel Launch Under High‐Speed Solid‐Phase Particulate Impacts

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT An accurate launch‐dynamics computational method is critical for barrel weapon service life assessment and multiphase physics field refinement. Given the lack of studies on the solid‐phase buildup behavior at the projectile base, this paper provides an improved method for calculating the launching dynamics under high pressure and high speed ...
Zhiyi He, Guolai Yang, Quanzhao Sun, Shuli Li   +3 more
wiley   +1 more source

Feeding SMBHs through supersonic turbulence and ballistic accretion

, 2011
It has long been recognised that the main obstacle to accretion of gas onto supermassive black holes (SMBHs) is large specific angular momentum.
Alexander Hobbs, Andrew King, Balsara, Barnes, Bartko, Bate, Bate, Bondi, Bondi, Bonnell, Bonnell, Booth, Chen, Chris Power, Cid Fernandes, Collin, Collin, Cuadra, DeBuhr, Dekel, Dekel, Dobbs, Dubinski, Elmegreen, Farrah, Ferrarese, Gebhardt, González Delgado, Goodman, Hobbs, Hoyle, Häring, Kawakatu, King, King, King, Kolykhalov, Kurk, Leitherer, Levin, Li, Lodato, Loeb, Mac Low, Magorrian, McGaugh, McKee, McKee, Monaghan, Nayakshin, Nayakshin, Nayakshin, Nayakshin, Paczyński, Paumard, Read, Schartmann, Sergei Nayakshin, Shakura, Shapiro, Shlosman, Sijacki, Springel, Springel, Springel, Thompson, Wang   +66 more
core   +1 more source