Results 1 to 10 of about 185,751 (346)
Nature Materials, 2010 Sliding parts in nanosystems such as Nano ElectroMechanical Systems (NEMS) and nanomotors, increasingly involve large speeds, and rotations as well as translations of the moving surfaces; yet, the physics of high speed nanoscale friction is so far ...
AE Filippov +33 more
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The role of tangential velocity in explosive initiation by fragment impact
Defence Technology, 2022 An initiation study is presented in which we examine the effect of the normal and the tangential velocity components of a fragment that impacts a covered and a bare Comp-B explosive. The study is based on calibrated numerical Lagrangian simulations using
Vitaly Leus +3 more
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Interceptor model based on ballistic missile maneuvering penetration [PDF]
Zhihui kongzhi yu fangzhen, 2023 The mid-course ballistic flight is the research focus of various missile defense systems, and the development of kinetic energy interceptors has reached the level of refinement and precision, the mid-course penetration technology of ballistic missiles is
SHAO Hengwu, LI Hongwei
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Maximal fascicle shortening velocity measurements in human medial gastrocnemius muscle in vivo
Physiological Reports, 2023 This study evaluated the maximal fascicle shortening velocity under near‐no‐load conditions. In addition, we determined whether the rate of torque development during ballistic contraction was related to maximal fascicle shortening velocity. Under passive
Keitaro Kubo
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Experimental study on the performance of multi-layered bulletproof vest
Jurnal Ilmiah SINERGI, 2022 A bulletproof vest should have high strength and durability to resist a bullet as vital war equipment. However, the cost of creating good quality bulletproof vest is expensive.
Azhari Sastranegara +2 more
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Research on deployment method of early warning detection ship in ballistic missile defense operation [PDF]
Zhihui kongzhi yu fangzhen, 2023 In order to give full play to the maneuverability of sea-based ballistic missile defense force and expand the level of sea-based ballistic missile defense, this paper studies the deployment of early warning and detection ship in ballistic missile defense
XIE Xuehao, ZHAO Xiaodong
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Optica, 2020 We report the theoretical prediction and experimental realization of the optical phenomenon of “ballistic resonance.” This resonance, resulting from the interplay between free charge motion in confining geometries and periodic driving electromagnetic fields, can be utilized to achieve negative permittivity at frequencies well above the bulk plasma ...
Kun Li +6 more
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Experimental and Numerical Analysis of Bulletproof Armor Made from Polymer Composite Materials [PDF]
Engineering and Technology Journal, 2015 This work focuses on the preparation of polymer matrix composite specimens by (Hand Lay-Up) method to make bulletproof armor from the unsaturated polyester resin (UP) as a matrix reinforced by Kevlar fibers at different volume fractions with and without (
Jawad Kadhim Oleiwi +2 more
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A Thermal Transport Study of Branched Carbon Nanotubes with Cross and T-Junctions
Applied Sciences, 2021 This study investigated the thermal transport behaviors of branched carbon nanotubes (CNTs) with cross and T-junctions through non-equilibrium molecular dynamics (NEMD) simulations.
Wei-Jen Chen, I-Ling Chang
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Vertical Launch Trajectory Modeling and Range Influence Law of Shipborne Depth Charge
水下无人系统学报, 2023 The vertical launch of shipborne depth charge can greatly improve platform adaptability and combat effectiveness, which is of great significance in improving the combat capability of ships.
Xiaohui WAN +5 more
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