Results 61 to 70 of about 2,260,712 (239)

Swirl Characteristics of Vortex Valve Variable-Thrust Solid Rocket Motor

Journal of Applied Fluid Mechanics, 2018
In accordance with the flow characteristics of vortex valve variable-thrust solid rocket motors, a cold flow experimental system based on Particle Image Velocimetry was established.
X. G. Wei, J. Li, G. Q. He
doaj  

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

Advanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan, Hocheon Yoo, Benoît H. Lessard, Ioannis Kymissis, Chang‐Hyun Kim   +4 more
wiley   +1 more source

Rapid Microwave Plasma Engineering of HfO2/C@C Core‐Shell Fibrous Membrane Toward Flexible High‐Performance Electromagnetic Wave Absorption

Advanced Functional Materials, EarlyView.
Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding, Limeng Song, Wei Li, Jiangtao Hao, Xuewen Jiang, Mengru Li, Xinglai Yuan, Gang Wang, Yanqiu Zhu, Mi Tian, Hailong Wang, Hongxia Li, Biao Zhao, Rui Zhang, Bingbing Fan   +14 more
wiley   +1 more source

Advanced Motion Parameter Sensors Based on Standing Wave Inertia

Приборы и методы измерений
Miniaturization and increased accuracy of orientation and navigation systems for controlling mobile objects are a pressing task for the aviation, space, transport, and oil and gas industries.
V. V. Matveev, A. N. Khomyachkova, А. V. Kalikanov, D. S. Streltsov   +3 more
doaj   +1 more source

An Epigenetic Fate Converter Based on Nuclei‐Targeting Lipid Nanoparticles Drives Neuronal Programming of Stem Cells for Spinal Cord Repair

Advanced Functional Materials, EarlyView.
Schematic illustration of LNP‐MPG nuclei‐targeting delivery of HMW‐FGF2 promoting histone acetylation to regulate the fate of DPSCs and treat spinal cord injury. LNPs components include pHMW‐FGF2 plasmid, DSPC, Dlin‐MC3‐DMA, cholesterol, and PEG2000, and are modified with MPG to form HMW‐FGF2@LNP‐MPG (HLM). HLM nuclei‐targets DPSCs to deliver HMW‐FGF2,
Heng Zhou, Qiang Qin, Xiqin Li, Hanyu Ding, Chun Xu, Yan He, Qingsong Ye   +6 more
wiley   +1 more source

Atherosclerotic Lesions in the Superficial Femoral Artery (SFA) Characterized with Velocity Ratios using Vector Velocity Ultrasound [PDF]

, 2018
Atherosclerotic arteries are challenging to evaluate quantitatively using spectral Doppler ultrasound because of the turbulent flow conditions that occur in relation to the atherosclerotic stenoses.
Lange, Theis, Hansen, Peter Møller, Hansen, Kristoffer Lindskov, Jensen, Jørgen Arendt, Pedersen, Mads Møller, Nielsen, Michael Bachmann, Lönn, Lars   +6 more
core   +1 more source

Accelerated Discovery of Topological Spin Phase Diagrams in CrSBr Magnets Via High‐Throughput Optimization

Advanced Functional Materials, EarlyView.
Here, we develop a high‐throughput algorithm that accelerates the elucidation of phase diagrams of topological spin textures using limited computational resources at high numerical accuracy. Applying this framework to the van der Waals magnet CrSBr, we unveiled a hierarchy of previously unknown topological textures (domain‐wall bimerons, bimeron chains,
Andrew Lyall, Mohammad H. Badarneh, Cristian Bonato, Rebecca Cheung, Elton J. G. Santos   +4 more
wiley   +1 more source

Numerical Simulation and Optimization on Flow of Cooling Water in Oxygen Lance Nozzle for a 50 t Converter

Teshugang, 2013
The numerical simulation on flow of cooling water in oxygen lance nozzle for a 50 t converter has been carried out by a commercial software Fluent to analyze its flow characteristics through velocity vector diagram of cooling water flow.
孙玉霞, 韩志杰, 常金宝, 张朝发, 李双武, 轩宗宇   +5 more
doaj  

Study of the Kinematics, the Working Angles of the Cutters and their Influence on the Gear Cutting Process by Means of the Power Skiving Method

Journal of Mechanical Engineering
The paper deals with the kinematics of the Power Skiving process, the determination of the total cutting speed, the working angles of the cutting wedge of the Power Skiving tool and their influence on the process of cutting gears.
Hrytsay Ihor, Slipchuk Andrii, Borovets Volodymyr   +2 more
doaj   +1 more source

Transições de fase na matéria de quarks magnetizada com repulsão vetorial [PDF]

, 2015
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Física, Florianópolis, 2015.Neste trabalho investigamos as transições de fase na matéria de quarks magnetizada usando o ...
Denke, Robson Zacarelli
core