Results 141 to 150 of about 7,666,006 (325)

Study on Collet Circumferential Positioning Mechanism and Motion Stability for Collet Connectors

open access: yesShiyou jixie, 2016
The dip angle between collet and actuator ring determines whether the collet and actuator ringcan realize self-locking after locking. The working principle of the collet moving parts has been introduced. The dip angle between collet and actuator ring and
Miao Chunsheng   +5 more
doaj  

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

Visual and motion cueing in helicopter simulation [PDF]

open access: yes
Early experience in fixed-cockpit simulators, with limited field of view, demonstrated the basic difficulties of simulating helicopter flight at the level of subjective fidelity required for confident evaluation of vehicle characteristics.
Bray, R. S.
core   +1 more source

Design and Simulation of Pipe Handling Manipulator for Skid-mounted Drilling Rig

open access: yesShiyou jixie, 2015
To meet the needs of pipe handling automation for the small skid-mounted drilling rig,based on the study object of Daqing-30 rig,a new type of pipe handling manipulator for skid-mounted drilling rig has been designed using modern mechanical design theory
Ma Xiaoshi, Li Qian, Zhang Chenggong
doaj  

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton   +11 more
wiley   +1 more source

Swing Analysis of Freedom Overhanging Gripper of Pipe Crane on Floating Platform Base on UG and ADAMS

open access: yesShiyou jixie, 2017
The domestic knuckle boom pipe crane has a large swing during the test in factory, especially operated by the unskilled personnel, and may be greater on the floating drilling platform.
Wang Dongshi
doaj  

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann   +4 more
wiley   +1 more source

Visually guided control of movement in the context of multimodal stimulation [PDF]

open access: yes
Flight simulation has been almost exclusively concerned with simulating the motions of the aircraft. Physically distinct subsystems are often combined to simulate the varieties of aircraft motion.
Riccio, Gary E.
core   +1 more source

Motion Performance Analysis and Control of Robotic Hydraulic Manipulator Arm

open access: yes工程科学与技术
Connecting and disconnecting water and gas pipes is essential to coal mine site construction. With the increasing demands for installation quality, construction efficiency, and safety, traditional manual operation fails to meet construction requirements.
Zenglin YE   +4 more
doaj  

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

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