Results 71 to 80 of about 2,747 (213)

Multiphase CFD Simulation of Solid Propellant Combustion in a Small Gun Chamber

International Journal of Chemical Engineering, 2014
The interior ballistics simulations in 9 mm small gun chamber were conducted by implementing the process into the mixture multiphase model of Fluent V6.3 platform.
Ahmed Bougamra, Huilin Lu
doaj   +1 more source

Preventing wall deposition in duct flows: The role of particle number density and flow direction

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Particle deposition in wall‐bounded turbulent flows is a challenge in many industries, including pneumatic conveying, filtration, and related applications. When particles accumulate near boundaries, they reduce transport efficiency, alter near‐wall flow structures, and cause blockage.
Gizem Ozler, Holger Grosshans
wiley   +1 more source

Ultrafast Transitions in X‐Ray Irradiated Solids

Contributions to Plasma Physics, EarlyView.
ABSTRACT In this review, we present current developments on modeling ultrafast transitions in solids triggered by intense, atto‐ to femtosecond pulses from X‐ray free electron lasers. This specific irradiation regime requires dedicated simulation tools based on theoretical and computational methods, involving the elements of classical and quantum ...
Sebastião Antunes, Konrad J. Kapcia, Vladimir Lipp, Beata Ziaja   +3 more
wiley   +1 more source

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

Discovering Shared Design Heritage for Semiconductor‐Based Gamma‐Ray Spectrometers: From CdTe to Metal Halide Perovskites

Laser &Photonics Reviews, EarlyView.
Decades of CdTe and CdZnTe gamma‐ray spectrometer development define core design principles for room‐temperature semiconductor detectors. This Review highlights how metal halide perovskites rapidly assimilate these principles, particularly through defect and compositional engineering strategies that establish favorable spectroscopic conditions for ...
Younghak Kim, Jiwon Seo, Jihwan Boo, Jaehyeon Seo, Chanho Kim, Geehyun Kim, Jung‐Yeol Yeom, Beomjun Park   +7 more
wiley   +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

Comparison of Amplitude‐ and Amplitude‐Frequency‐Modulated Pulses for Outer Volume Suppression in Cardiac MRI: Application to Myocardial T2$$ {T}_2 $$ Mapping

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To evaluate single‐ and dual‐band pulse modules for suppressing extra‐cardiac signal in cardiac MRI, and test their applicability for time‐efficient imaging with reduced FOV in myocardial T2$$ {T}_2 $$ mapping at 3 T. Methods Outer Volume Suppression (OVS) was implemented using two regional saturation slabs, along the phase‐encoding ...
Ayda Arami, Maša Božić‐Iven, Christal van de Steeg‐Henzen, Yidong Zhao, Yi Zhang, Qian Tao, Alexandru Cernicanu, Hildebrandus Johannes Lamb, Sebastian Weingärtner   +8 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

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 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