Results 61 to 70 of about 4,210 (209)

Stress analysis of crack characteristic of anthracite under dynamic loading

Deep Underground Science and Engineering, EarlyView.
In this article, the dynamic compression test of anthracite under five strain rates is carried out, the evolution law of three kinds of crack characteristic stress is analyzed, and a prediction model of the crack characteristic stress threshold considering the strain rate effect is established. Then, the rationality of crack characteristic stress under
Yun Bai, Feng Gao, Ning Luo, Zhizhen Zhang, Yue Niu, Shanjie Su   +5 more
wiley   +1 more source

Characterization of the permeability evolution of hard and soft rocks under hydro‐mechanical coupling conditions

Deep Underground Science and Engineering, EarlyView.
The permeability variation of rocks during complete stress–strain processes was investigated. A mathematical model describing the influence of rock damage on permeability was constructed. The permeability–stress relationship between soft rock and hard rock was proposed.
Zhen Huang, Jian Yu, Yun Wu, Cong Gong, Xiaozhao Li, Kui Zhao, Dickson Moyo   +6 more
wiley   +1 more source

Modeling of electro-hydraulic controlled propulsion system

Journal of Dynamics and Vibroacoustics, 2014
Modern rocket propulsion system is a dynamic system with a set of inter- connected links Modern controlled propulsion system, ensuring in the pro- cess of its operation on the aircraft receiving the given basic characteristics. Main propulsion controlled variable serving as controlled object is second mass flow of gases through the nozzle.
A. B. Bachurin, E. V. Strelnikov, V. A. Tselischev   +2 more
openaire   +1 more source

Dynamic response at the terminus of oblique intersecting joints subjected to stress waves

Deep Underground Science and Engineering, EarlyView.
This study derives the propagation equation for stress waves impinging upon nonlinear oblique intersecting joints. It analyzes the dynamic response at the terminus of nonlinear oblique intersecting joints subjected to stress waves. Abstract To investigate the dynamic response at the terminus of oblique intersecting joints subjected to stress waves, a ...
Gang Hu, Xiang Chen, Honglu Fei, Shijie Bao, Jian Guo   +4 more
wiley   +1 more source

Membrane Engineering for Battery Systems: Bridging Design Principles and Frontier Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The review emphasizes membrane separators' role in battery performance and safety, covering redox flow, lithium‐ion, and solid‐state batteries. It reviews advances in membrane materials (e.g., polymer electrolytes, hybrid composites) and ion transport mechanisms, while addressing challenges like dendrite growth and crossover losses.
Xiaoqun Zhou, Justice Delali Akoto, Rui Tan, Jun Ma   +3 more
wiley   +1 more source

Modeling and control of a high-quality electro-hydraulic actuator driven via an induction motor under intelligent indirect vector control [PDF]

Engineering and Technology Journal
Due to its excellent energy efficiency and broad speed range, the variable-speed electro-hydraulic drive is an appealing driving principle in many contemporary industrial applications.
Aws Hassan, Jamal Mohammed, Walaa Hashim
doaj   +1 more source

SELF-TUNING FUZZY CONTROL OF ELECTRO-HYDRAULIC SERVO SYSTEM

Proceedings of the JFPS International Symposium on Fluid Power, 1996
This study deals with a self-tuning fuzzy controller (STFC) when it is applied to an electro-hydraulic servo system. The STFC has a hierarchic structure consisting of an algorithm being identical to a fuzzy controller at the lower loop, and a tuning algorithm accommodating the performance evaluation and parameter modification function at the upper loop.
Takayoshi MUTO, Ping YU, Yoshiharu TAKEDA, Hironao YAMADA   +3 more
openaire   +3 more sources

Hydrophobic eutectic solvent‐engineered membranes for highly permeable, selective, and antifouling pharmaceutical removal from municipal wastewater

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Single‐step incorporation of a hydrophobic deep eutectic solvent (HDES) into polyethersulfone ultrafiltration membranes via non‐solvent induced phase separation creates selective, antifouling membranes for pharmaceutical removal. The HDES nanodomains enhance permeability, electrostatic interactions, and adsorption affinity, enabling efficient and ...
Anjali Goyal, Tarek Lemaoui, Mahendra Kumar, Ahmad S. Darwish, Ali Zerriouh, Fawzi Banat, Hassan A. Arafat, Shadi W. Hasan, Inas M. AlNashef   +8 more
wiley   +1 more source

Dual‐Mode Electrophoretic Displays Enabled by Quantum Dot‐Decorated PR48:2 Pigment Particles and TiO2 for All‐Weather Visibility, Excellent Bistability, and Enhanced Readability

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study presents a novel quantum dot electrophoretic display (QDEPD), which combines electro‐controlled reflection and optically‐triggered emission to achieve efficient multi‐modal switching within a single pixel. By incorporating multi‐component nanostructures, the system enhances functional integration and multi‐modal response capabilities.
Xingke Zheng, Yun Ye, Hongxing Xie, Yuanyi Liu, Ruihan Lin, Guangyou Liu, Tianyong Guan, Enguo Chen, Tailiang Guo   +8 more
wiley   +1 more source

Design of monitoring and control system based on virtual reality technology on fully-mechanized coal mining face

Gong-kuang zidonghua, 2016
In view of problems of bad image effect of video monitoring and control in process of automation production on fully-mechanized coal mining face, a monitoring and control system based on virtual reality technology was designed, and function design ...
LI Hao, CHEN Kai, ZHANG Xi, QIAN Jiansheng   +3 more
doaj   +1 more source