Results 141 to 150 of about 92,194 (299)

Modeling and experimental validation of bolt–grout bond–slip behavior for deep underground excavation support

Deep Underground Science and Engineering, EarlyView.
A novel shear‐lag model, validated by pull‐out tests, incorporates a constant bond stress stage to predict the complete load–displacement response of grouted rock bolts, providing a new tool for optimizing anchorage length and material toughness in deep underground engineering. Abstract The stability of rock masses in deep underground excavations, such
Wenhui Bian, Xiaohui He, Kexue Wang, Yufei Wu, Guoxin Wang, Shaochen Zhang, Jun Yang   +6 more
wiley   +1 more source

Co-simulation and Operating Characteristic Analysis of Shift Clutch based on Recur Dyn and AMESim

Jixie chuandong, 2018
Based on the operating principle and cushioning characteristic of a shift clutch,the mechanical model of the shift clutch and the hydraulic model of the buffer circuit are respectively established in Recur Dyn and AMESim,then the mechanical-hydraulic co ...
Hao Chiyu, Feng Guangbin, Sun Huagang, Liu Qi   +3 more
doaj  

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

Rechargeable Self‐Powered Flexible Pressure Sensors With Adjustable Sensitivity Based on Quasi‐Solid‐State Zinc‐Ion Batteries

EcoEnergy, EarlyView.
his paper presents a self‐powered, rechargeable quasi‐solid‐state zinc‐ion battery‐based flexible pressure sensor with adjustable sensitivity, excellent performance and broad application prospects. ABSTRACT Flexible pressure sensors hold broad application prospects in electronic skin, human–machine interaction, and health monitoring.
Qianqian Yao, Liangxian Wang, Ziqi Ren, Jianyu Yin, Qixiang Zhang, Mingfang Deng, Nishuang Liu, Yihua Gao   +7 more
wiley   +1 more source

MATHEMATICAL MODEL OF SUBDIVIDED HYDRAULIC CIRCUITS

Advanced Engineering Research, 2010
The mathematical model of subdivided hydraulic circuits that permits calculation of the fluid distribution in all points is considered.
Valery S. KRUTIKOV, Konstantin A. LIKHODED, Nikolay V. DIVULIN   +2 more
openaire   +2 more sources

Defect Engineering and Effect of Vacancy Concentration on the Electrochemical Performance of V‐Based MXenes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Using a top‐down defect engineering approach, controllable vacancy concentrations are introduced into V‐based MXenes by rationally designing the precursor MAX phase, aiming to investigate the effect of vacancy concentration on the electrochemical performance.
Leiqiang Qin, Rutuparna Samal, Jianxia Jiang, Joseph Halim, Ningjun Chen, Florian Chabanais, Per O. A. Persson, Johanna Rosen   +7 more
wiley   +1 more source

Preliminary design of a Primary Loop Pump Assembly (PLPA), using electromagnetic pumps [PDF]

A preliminary design study of flight-type dc conduction-permanent magnetic, ac helical induction, and ac linear induction pumps for circulating 883 K (1130 F) NaK at 9.1 kg/sec (20 lb/sec) is described.
Donelan, L., Johnson, J. L., Matlin, G., Moss, T. A., Rowe, I.   +4 more
core   +1 more source

Modeling and Power Regulation Strategy of Variable‐Speed Pumped Storage Unit With Full‐Size Converter in Pump Mode

Energy Science &Engineering, EarlyView.
A numerical model of variable‐speed pumped storage unit (VSPSU) with full‐size converter (FSC) under fast speed control strategy is established. Additionally, the correctness of the model was validated by comparing with SIMSEN simulation results and text prototype data from NARI.
Weijia Yang, Peilin Wu, Zixuan Shao, Yiwen Liao, Yufei Teng, Huabo Shi   +5 more
wiley   +1 more source

Optimized sequential method assisting design and implementation of electro-pneumatic/hydraulic circuit

, 2020
Marques VAdS, Rodrigues FNC, Tavares JJZdS.   +2 more
europepmc   +1 more source

MOD-0A 200 kW wind turbine generator design and analysis report [PDF]

The design, analysis, and initial performance of the MOD-OA 200 kW wind turbine generator at Clayton, NM is documented. The MOD-OA was designed and built to obtain operation and performance data and experience in utility environments.
Anderson, T. S., Bodenschatz, C. A., Eggers, A. G., Hughes, P. S., Lampe, R. F., Lipner, M. H., Schornhorst, J. R.   +6 more
core   +1 more source