Results 91 to 100 of about 54,197 (216)

Simulation Research on Impact Contact Behavior between Coal Gangue Particle and the Hydraulic Support: Contact Response Differences Induced by the Difference in Impacted Location and Impact Material. [PDF]

Materials (Basel), 2022
Yang Y, Zhang Y, Zeng Q, Wan L, Zhang Q.
europepmc   +1 more source

Programmable Multi‐Axially Aligned Aerogels via Sequential Freeze‐Casting for Tailored Anisotropy and Tunable Mechanics

Advanced Science, EarlyView.
Conventional single‐gradient freeze‐casting typically produces unidirectional porous architectures with limited transverse connectivity. The Sequential Hybridization by Infiltration and Freeze‐casting Technique (SHIFT) addresses this constraint by integrating secondary aligned structures within a preformed primary scaffold.
Kiho Sung, Sungchul Shin
wiley   +1 more source

Research on collaborative control method of positioning of operators and hydraulic support for coal mine fully-mechanized mining face

Meikuang Anquan
In order to further improve the safety of coal mine comprehensive mining operations, a set of coal mine comprehensive mining personnel positioning and hydraulic support system control system is proposed with intelligent technology as the starting point ...
Zhanze LIANG, Shu ZHOU, Haijian CHEN
doaj   +1 more source

Bioinspired Passive Flow Routing to Mitigate Thrombosis in Prosthetic Heart Valves and Cardiovascular Devices

Advanced Science, EarlyView.
Bioinspired passive flow routing mitigates thrombosis in cardiovascular devices by redirecting a small fraction of forward flow into stagnation‐prone regions. Inspired by avian alula and aircraft slat mechanisms, strategically placed routing channels restore washout around mechanical heart valves, reducing low‐shear exposure by four orders of magnitude
Yevgeniy Kreinin, Mark Epshtein, Yahel Talmon, Tirosh Mekler, Itay Or, Mahli Raad, Gil Bolotin, Josué Sznitman, Netanel Korin   +8 more
wiley   +1 more source

Response characteristics of unit type energy-absorbing and anti-impact hydraulic support under impact load

Meitan kexue jishu
In the rock burst mines, mastering both the mechanical and modal response characteristics of advanced hydraulic supports is the basis and premise for the selection and optimization of roadway advanced hydraulic supports.
Shuwen WANG, Yonghui XIAO, Feng JIN, Lianpeng DAI, Shijie SU, Aiwen WANG, Ping MA   +6 more
doaj   +1 more source

Current Collector Engineering for New Efficient Bioresorbable Sodium‐Ion Batteries

Advanced Science, EarlyView.
A bioresorbable Na‐ion battery is proposed with Mo or Mg thin‐film current collectors for temporary implants. Mo‐based batteries exhibit superior electrochemical performance and stable cycling compared with Mg counterparts. XPS was used to investigate the Mo/Mg surface oxidation.
Bincy Lathakumary Vijayan, Eleonora Vandini, Vedi Kuyil Azhagan Muniraj, Hussien Hammoud, Oussama Jamai, Eve Djenizian, Marc Ramuz, Daniela Giuliani, Manuela Zavatti, Yann Tison, Hervé Martinez, Lucas Teolis, Esma Ismailova, David Moreau, Sébastien Maria, Thierry Djenizian   +15 more
wiley   +1 more source

An Innovative Three-Dimensional Mathematical–Physical Model for Describing Load-Carrying Characteristic of Hydraulic Supports

Actuators
Reliable posture and loading characteristics detection of hydraulic supports is one of the indispensable factors to realizing the intelligentization of fully mechanized coal mining faces.
Xiang Yuan, Boyi Yu, Jinghao Zhu, Xinhao Zhou, Yifan Xie   +4 more
doaj   +1 more source

A Multimodal Haptic Feedback Interface with Thin‐Film Compliant Mechanism

Advanced Science, EarlyView.
Multimodal haptic devices can trigger different mechanoreceptors, enabling richer haptic information. This study presents an electromagnetic multimodal haptic device capable of delivering indentation, stretch, and vibration stimuli. The device is enabled by a novel polymer thin‐film compliant mechanism that provides high translational compliance along ...
Jingjing Wan, Emanuele Nicotra, James Davies, Kefan Zhu, Quang Anh Nguyen, Sinuo Zhao, Chi Cong Nguyen, Bibhu Sharma, Adrienne Ji, Hermione Truong, Patrick Pruscino, Tan Huynh, Phuoc Thien Phan, Hoang‐Phuong Phan, Nigel Hamilton Lovell, Thanh Nho Do   +15 more
wiley   +1 more source

Study on constant-resistance energy-absorbing components of hydraulic support for rock burst roadway and their anti-impact performance

Meitan kexue jishu
The significant fluctuation in bearing capacity remains a critical challenge to be addressed in thin-walled corrugated anti-impact energy-absorbing components.
Yimin SONG, Di WU, Dong AN, Hailiang XU, Tengteng WANG, Qiuliang WAN, Tian WEN, Jinying FAN   +7 more
doaj   +1 more source

A Smart Fluid‐Hydraulic System Based on MRF Valve Control and Its Application in Flexible Grasping

Advanced Science, EarlyView.
This study introduces a smart fluid hydraulic system using MRF valve control for flexible gripping. An MRF‐MSV with an integrated excitation coil and micro‐textured damping channels is designed and validated; micro‐texturing increases hydraulic resistance. Coupled with a soft actuator, the MRF‐MSV enables dynamic bending and grasping.
Linfeng Huo, Hui Ji, Ruidong Hong, Songlin Nie, Fanglong Yin, Zhonghai Ma   +5 more
wiley   +1 more source