Results 91 to 100 of about 8,979 (244)

Dead Matter, Living Machines: Repurposing Crustaceans' Abdomen Exoskeleton for Bio‐Hybrid Robots

Advanced Science, EarlyView.
Crustacean exoskeletons, repurposed from food waste, are engineered into sustainable bending actuators combining biotic structure with synthetic control. The augmented exoskeletons achieve rapid and robust motion with lightweight body and can be used as part of robotic manipulators, grippers and swimmers.
Sareum Kim, Kieran Gilday, Josie Hughes
wiley   +1 more source

Direct Observation of Electric‐Field‐Driven Phase Transitions Associated with Energy Storage in Antiferroelectric Films

Advanced Science, EarlyView.
The electric‐field‐driven antiferroelectric‐to‐ferroelectric phase transition in epitaxial PbZrO3 films is directly visualized by in situ aberration‐corrected scanning transmission electron microscopy. A sequential transition pathway involving an orthorhombic ferrielectric phase and a monoclinic ferroelectric phase, ultimately stabilizing into a ...
Yan‐Peng Feng, Mei‐Xiong Zhu, Ru‐Jian Jiang, Yu‐Jia Wang, Yun‐Long Tang, Yin‐Lian Zhu, Xiu‐Liang Ma   +6 more
wiley   +1 more source

实现连续轨迹的曲柄滑块机构的尺度优化

Jixie chuandong, 2007
The crank-slider which reappears continuous path has six variables. An optimal synthesis model based on the angle error of guide passage of crank-slider is set up.
孔建益, 刘怀广, 杨金堂, 李公法   +3 more
doaj  

Gradient Ion Beams Regulate Surface Group Modification to Enhance Interfacial Charge Transport in Triboelectric Polymers

Advanced Science, EarlyView.
This study addresses the core scientific question of atomic‐scale structural units and their assembly mechanisms by integrating ion implantation technology— originally developed in nuclear physics research—with flexible intelligent polymers. Through this interdisciplinary approach, we have enabled on‐demand customization of surface functionalities and ...
Yi Chen, Yuliang Yao, Xinya Shen, Meiling Gong, Chuan Xu, Chunliang Zhou, Fuqiu Ma, Jian Zhang, Xiangyu Chen, Yanxia Liang, Engang Fu, Yong Fan   +11 more
wiley   +1 more source

Preliminary Exploration of the Topological Structure of the Crank- Group Driving Mechanism

Jixie chuandong, 2015
The crank- group driving mechanism is a kind of underactuated mechanism with redundant characteristics. Based on the topological theory,taking the typical structures of the crank- group driving mechanism（ the single driven crank driving mechanism and the
Wang Yuqi, Cao Jujiang
doaj  

A Van der Waals Material Exhibiting Room Temperature Broken Inversion Symmetry with Ferroelectricity

Advanced Science, EarlyView.
This study reports a βp$\ubeta^{\text{p}}$ phase of indium selenide showing ferroelectricity over large areas at room temperature in a low‐dimensional limit. It is found that indium selenide films with βp$\ubeta^{\text{p}}$ layers display electric field‐induced switchable polarization characteristic of ferroelectric materials, suggesting the breaking ...
Fabia F. Athena, Cooper A. Voigt, Mengkun Tian, Anjan Goswami, Emily Toph, Moses Nnaji, Fanuel Mammo, Brent K. Wagner, Sungho Jeon, Wenshan Cai, Eric M. Vogel   +10 more
wiley   +1 more source

Addressing Oxygen Embrittlement in Additively Manufactured Titanium via Cu‐Mediated Interstitial Site Engineering

Advanced Science, EarlyView.
A novel “Cu‐mediated interstitial site engineering” strategy is introduced to thermodynamically stabilize hexagonal oxygen (hex‐O) configurations in oxygen‐containing titanium alloys. The hex‐O configuration activates multiple slip systems and enhances dislocation pinning via long‐range repulsion.
Xiaobin Lin, Xudong Rong, Jiachen Xie, Xinru Wang, Jianteng Wang, Zhihang Xu, Dongdong Zhao, Shiwei Pan, Feng Qian, Longlong Ma, Gang Sha, Xiang Zhang, Chunsheng Shi, Chunnian He, Naiqin Zhao   +14 more
wiley   +1 more source

Dynamics Simulation and Experiment of the Slider-crank Mechanism with Dry Friction Clearance Joint

Jixie chuandong, 2017
Based on dynamics simulation software,the dynamics analysis of the slider-crank mechanism with clearance joint is carried out and the effect of joint with different clearance size under dry contact and non-friction conditions on dynamic response of ...
Han Yuncheng, Xu Lixin, Huang Xiaoqiu
doaj  

Semiconducting THO‐C3N Monolayers for Ultrahigh Anisotropic Carrier Mobility

Advanced Science, EarlyView.
A precise site‐specific N‐doping strategy that drives a secondary electronic transition in net W is proposed, enabling the electronic properties transition from metal to Dirac semimetal and ultimately to semiconductor. The obtained THO‐C3N‐2 and THO‐C3N‐3 semiconductors exhibit high carrier mobilities and pronounced mobility anisotropy, with THO‐C3N‐2 ...
Rui Tan, Xueqing Chen, Jifeng Luo, Zhe Xue, Zehou Li, Xiaolin Wei, Zhenkun Tang, Gaokuo Zhong   +7 more
wiley   +1 more source

Methylation‐Induced Permanent Charge Polarization in Covalent Organic Frameworks for Visible Light‐Driven Water Decontamination and Disinfection

Advanced Science, EarlyView.
A targeted in situ methylation strategy is developed to engineer cationic centers in a quinoline‐linked COF (NQ‐COFS1‐Me), creating a strong built‐in electric field, which effectively suppresses excitonic effects and promotes charge separation. The optimized material demonstrates powerful photocatalytic ROS generation for rapid bacterial inactivation ...
Xuewen Peng, Huaji Pang, Niu Feng, Dekang Huang, Chunpeng Jiao, Jingbin Zeng, Yonggang Xiang, Yiping Chen   +7 more
wiley   +1 more source