Results 41 to 50 of about 11,763 (288)
Research on Fatigue Stability of Rocket Launcher High Thrust Electro-mechanical Servo Actuator
Jixie chuandong, 2022 The high thrust electro-mechanical servo actuator in rocket launcher is a linear transmission mechanism with high precision planetary roller screw as its core component.
Jianxin Zhang, Wenzhu Deng, Wei Lei
doaj
Hierachical micro/nano structures fabrication by a novel tri-axial piezoelectric servo system
Materials & Design, 2022 In this study, a novel tri-axial piezoelectric servo system is developed for micro/nano manufacturing considering the stroke, motion resolution, crosstalk, working bandwidth, compact structure, and position and pose modulation capability of cutting tool.
Haiqiang Yu +6 more
doaj +1 more source
Subgravity simulator Patent [PDF]
, 1967 Apparatus for training astronaut crews to perform on simulated lunar surface under conditions of lunar ...
Johnson, H. I., Trader, A. G.
core +1 more source
Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami
Advanced Functional Materials, EarlyView.A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding +7 more
wiley +1 more source
Applied SciencesWith the rapid development of the manufacturing industry toward intelligence and flexibility, traditional mechanical presses are unable to meet the increased stamping requirements due to the difficulties in achieving variable speed control and changing ...
Yanzhong He, Xiang Luo, Xingsong Wang
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Aerospace, 2022 The constant pressure difference regulating mechanism is widely used in aeroengine fuel servo metering systems, and it almost decides the metering precision.
Wenshuai Zhao +4 more
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Bio‐Friendly Artificial Muscles Based on Carbon Nanotube Yarns and Eutectogel Derivatives
Advanced Functional Materials, EarlyView.Solid‐state artificial muscles based on coiled commercial carbon nanotube yarns coated with eutectogel derivatives exhibit unipolar actuation through selective ion intercalation. Combining polyanionic and polycationic gels enables enhanced contractile stroke and high energy density.
Gabriela Ananieva +6 more
wiley +1 more source
Design of an Anthropomorphic, Compliant, and Lightweight Dual Arm for Aerial Manipulation
IEEE Access, 2018 This paper presents an anthropomorphic, compliant and lightweight dual arm manipulator designed and developed for aerial manipulation applications with multi-rotor platforms.
Alejandro Suarez +2 more
doaj +1 more source
Cloud chambers and crystal growth: Effects of electrically enhanced diffusion on dendrite formation from neutral molecules [PDF]
, 1999 We present an extension of the solvability theory for free dendrite growth that includes the effects of electrically enhanced diffusion of neutral polar molecules.
Libbrecht, Kenneth G. +1 more
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Shape‐Morphing Nanoengineered Hydrogel Ribbons as Hemostats
Advanced Functional Materials, EarlyView.This study introduces a self‐assembling, shape‐morphing nanoengineered hydrogel ribbon system that rapidly forms porous aggregates in situ for efficient hemostasis in trauma and surgical applications. Abstract Rapid and effective hemorrhage control remains a major challenge in trauma and surgical care, particularly for complex or noncompressible wounds.
Ryan Davis Jr +9 more
wiley +1 more source