Results 71 to 80 of about 1,505,527 (335)

Fracture propagation and pore pressure evolution characteristics induced by hydraulic and pneumatic fracturing of coal

Scientific Reports
A two-dimensional unsteady seepage model for coal using a finite element program is developed, and the temporal variations of key factors such as water pressure and hydraulic gradient are analyzed in this paper. Additionally, the triaxial rock mechanical
Zhengzheng Cao, Xiangqian Yang, Zhenhua Li, Cunhan Huang, Du Feng, Wenqiang Wang, Xianjie Ni, Liu Shuai, Li Zhen   +8 more
semanticscholar   +1 more source

Elastomeric Micro‐Balloons for Remote Control of Cerebral Blood Flow and Real‐Time In vivo Imaging of Rodent Brain Response to Hypoperfusion

Advanced Materials, EarlyView.
This study reports the fabrication of MRI‐compatible elastomeric micro‐balloons via a multi‐step bubble casting process, where the monolithic elastomeric wall is selectively stiffened for reversible and controlled inflation and elasticity, depending on the target vessels for graded occlusion of cerebral arteries.
Jong Bin Kim, Jinghui Wang, Yinding Chi, Jingxian Wu, Alicia Ng, Guanda Qiao, Honglin Tan, Miroslaw Janowski, Piotr Walczak, Yajie Liang, Shu Yang   +10 more
wiley   +1 more source

MODERNIZATION OF DESIGN AND DESIGN CIRCUITS FOR CONTROL PART OF SPORTS SIMULATOR PNEUMATIC DRIVE

Наука и техника, 2009
The paper contains justification on application of a pneumatic drive  in various training simulators which are used as for general rehabilitation so for professional training as well for various kinds of sports. Simulator flow diagrams based on pneumatic
I. V. Kachanov, A. E. Pavlovich, А. A. Sheleg   +2 more
doaj  

Bandwidth expansion of a pressure control system for pneumatic anti-vibration apparatuses in presence of dead time

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2015
This paper considers the pressure control of air springs used for a pneumatic anti-vibration apparatus (AVA), which isolates vibration transmitted to semiconductor lithography equipment.
Yukinori NAKAMURA, Hiroki KAWAKAMI, Shinji WAKUI   +2 more
doaj   +1 more source

DEVELOPMENT OF AUTOMATIC SPEED CONTROL SYSTEM FOR SYNCHRONOUS DRIVE OF HIGH-POWER TUMBLING MILLS [PDF]

, 2018
Study the possibilities to increase the efficiency and decrease energy consumption of powerful tumbling ...
BORODAI, Valery, Бородай, Валерий Анатольевич, Бородай, В. А., Бородай, Валерій Анатолійович, NESTEROVA, Olha, Нестерова, Ольга Юріївна, Нестерова, О. Ю., Нестерова, Ольга Юрьевна, SHYKHOV, Stanislav, KHALAYIMOV, Taras   +9 more
core  

Selecting a variant to allocate a plant producing shotcrete while implementing method of “wet” pneumatic concrete placing in Orlovskaia mine [PDF]

, 2019
Purpose. Mining and geological conditions are complicated due to the decreased level of mining within deposits of West Kazakhstan. It results in significant increase in the amount of metal framed support which cannot always provide safety of mine ...
Konurin, A, Krupnik, L, Shaposhnik, S, Shaposhnik, Yu, Shokarev, D   +4 more
core   +1 more source

Freeform Manufacturing of Plant‐Based Structural Colors for Scalable Photonic and Mechanochromic Devices

Advanced Materials, EarlyView.
A green, freeform manufacturing approach that utilizes robust aqueous two‐phase systems to create intricate and scalable photonic structures and non‐planar mechanochromic hydrogel actuators from plant‐based hydroxypropyl cellulose. This approach broadens the structural possibilities of sustainable photonic devices and mechanochromic systems, offering ...
Xiao Song, Peiqi Niu, Wenxi Gu, Chun Lam Clement Chan, Jiuhong Yi, Xu Liu, Peng Tan, Chon In Haydn Cheong, Qingwen Guan, Dan Fang, Bingpu Zhou, Zi Liang Wu, Ji Liu, Yan Yan Shery Huang, Iek Man Lei   +14 more
wiley   +1 more source

Positive-pressure driven overflow-prevention valve with compact trigger mechanism

Nihon Kikai Gakkai ronbunshu, 2017
A new over-flow prevention valve with a trigger mechanism is designed, fabricated and studied experimentally to evaluate its performances. Loading arms are used to transfer combustible fluid such as oil between tankers and tanks.
Takeshi MIZUNO, Yuji ISHINO, Masaya TAKASAKI   +2 more
doaj   +1 more source

CHOICE OF CONTROLLED VARIABLES FOR ENERGY MANAGEMENT SYSTEM OF PISTON СOMPRESSOR UNITS [PDF]

, 2018
Nowadays on-off control system is common for piston compressors delivery. The control system is applied in case there is no technological need in maintaining the stable pressure level in pneumatic system and there are no dramatic ...
BOBROV, Oleksii
core  

Liquids as Reinforcements for Anisotropic and Tough Soft Matter Composites

Advanced Materials, EarlyView.
Liquid metal droplets are shaped and oriented within soft elastomers to create all‐soft matter composites with programmable mechanical anisotropy. These liquid inclusions act as fiber‐like reinforcements, enabling directional stiffness, enhanced toughness, and controlled crack steering under extreme deformation, offering new routes to resilient soft ...
Gwyneth M. Schloer, Ohnyoung Hur, Ravi Tutika, Aaron Haake, Eric J. Markvicka, Michael D. Bartlett   +5 more
wiley   +1 more source