Results 61 to 70 of about 3,362 (262)
Deep Underground Science and Engineering, EarlyView.In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu +6 more
wiley +1 more source
Seismic analysis and design of tunnels within fault ground: A review
Deep Underground Science and Engineering, EarlyView.The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang +6 more
wiley +1 more source
RESEARCH OF MOTORCYCLE EXHAUST PIPE FRACTURE FAILURE
Jixie qiangdu, 2015 For the motorcycle muffler exhaust pipe rupture fracture morphology and metallographic analysis. Assessment of heat affected zone average grain size of level 3,parent metal grain size grade for level 6.
WANG ZhengJin
doaj
Process of Air Ingress during a Depressurization Accident of GTHTR300
Science and Technology of Nuclear Installations, 2018 A depressurization accident is the design-basis accidents of a gas turbine high temperature reactor, GTHTR300, which is JAEA’s design and one of the Very-High-Temperature Reactors (VHTR).
Tomoya Shiga +2 more
doaj +1 more source
Energy Science &Engineering, EarlyView.This study primarily investigates the optimal width for coal pillar retention in both sides of the worked‐out face section. Taking the 42201 haulage roadway of the 42201 working face at Shengxin Coal Mine as the primary research target, it analyses the optimum width for coal pillar retention through theoretical calculations, numerical simulations, and ...
Shuaifeng Yin +4 more
wiley +1 more source
Energy Science &Engineering, EarlyView.This paper introduces a novel resilience‐based reward‐penalty scheme (RPS) for electricity grids facing high‐impact, low‐probability (HILP) disasters. By modeling the costs of proactive asset immunization against reactive RPS penalties, our analysis conclusively demonstrates that long‐term investment in grid resilience is the more economically rational
Amirhossein Yousefi Joobeni, Reza Dashti
wiley +1 more source
Numerical Investigation of Methane Transport Within and Around Evolving Cracks
Energy Science &Engineering, EarlyView.A validated model shows that natural gas leakage induces soil deformation and forms three key cracks. When diffusion is low, methane moves mainly along the primary crack, demonstrating how natural fractures reshape pathways and significantly enhance methane migration.
Le Wang +3 more
wiley +1 more source
Flexibilizing inorganic thermoelectrics
FlexMat, EarlyView.This perspective reviews advances in flexible inorganic thermoelectric materials, covering ductile bulks, thin films, and fibers/yarns. It highlights strategies like warm metalworking, van der Waals material screening, orientation and sandwich engineering, and device integration, offering pathways to combine flexibility and performance for wearable ...
Xiao‐Lei Shi +3 more
wiley +1 more source
Analytical studies of blowdown thrust force and dynamic response of pipe at pipe rupture accident.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 1985 高温高圧水が配管から噴出すると, 配管にはブローダウン推力が作用し, この力によって配管の運動が誘起される. ブローダウン推力を計算するためには運動量の保存式が用いられた. また, 配管の運動を解析するためには, 有限要素法が用いられた. さらに, 配管に生じる外表面最大ひずみを求めるために, 静的平衡状態を仮定して, 簡易評価式を導いた. 解析結果と実験結果とを比較して, ほぼ妥当な一致を示すことを確かめた.
openaire +2 more sources
Nanoplastics: Methods, Exposure and Effects on Domestic, Farm and Wild Animals
Journal of Applied Toxicology, EarlyView.ABSTRACT Nanoplastics (NPs) are synthetic polymer particles ranging in size from 1 nm to 1 μm that have been identified as a major concern for ecosystems and organisms due to their plethora of negative effects. The aim of this review is to provide a comprehensive overview of the knowledge relating to exposure and effects of NPs in domestic (i.e., farm ...
B. De Felice +8 more
wiley +1 more source