Results 81 to 90 of about 11,507 (301)
, 2022 Understanding accumulated damage effects is essential when undertaking deep underground rock engineering, as complex in situ environments and intense engineering disturbances realistically affect the physical and mechanical properties of rocks ...
Hai Pu, Ziheng Sha, Junce Xu
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American Journal of Agricultural Economics, EarlyView.Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt +6 more
wiley +1 more source
Study on sandstone fragments from impact rockburst experiments
矿业科学学报, 2018 Impact rockburst is induced by the combined static and dynamic loads after excavation.There are two types of impact rockburst experiments，one is induced by changing the static load and another is induced by changing the amplitude of dynamic load.The ...
Liu Dongqiao +4 more
doaj +1 more source
‘Turkeys Cannot Vote for Christmas’: Why Epistemic Disobedience in an Anti‐Black World Matters
Australian Journal of Social Issues, EarlyView.ABSTRACT Never in the history of global coloniality has the idea of epistemic disobedience been as important as in the 21st century. This is not only because the struggle for decolonisation has shifted from physical confrontation between the coloniser and the colonised into a battle of ideas but also because the former has deployed the idea of ...
Morgan Ndlovu
wiley +1 more source
The Study of the Supernormal Mechanical Properties of Giant NPR Anchor Cables
Shock and Vibration, 2020 Due to the frequent occurrence of geological disasters, such as geological faults, tectonic activities, and local activities, the study of a cable structure capable of resisting large deformations and of absorbing energy is investigated. The plane length
ZhiGang Tao +4 more
doaj +1 more source
Geofluids, 2022 The most challenging aspect of constructing an underground reservoir is ensuring that the safety coal pillar has long-term stability. It is of great significance to study the creep mechanical behavior of coal pillars under water-rock interaction for the ...
Zhong Zhao +5 more
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This Reprint aims to showcase the recent advances in research related to geomechanics and geotechnical engineering problems in the design and construction of underground buildings and present some scientific issues and solutions encountered in tunnel ...
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Going underground in Sweden, past-present-future
, 2013 Traditionally, utilization of underground space is well known in Sweden through a wide range of applications in the past, in projects presently in use or under construction as well as projects planned for future needs. The paper touches on many important
Tengborg, P., +3 more
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On a Possible Mechanism of Hydrostatic Pressure on Mineshaft Linings in Western China
Geofluids, 2022 Reasonable determination of the water pressure on the shaft linings is the key to the optimization design of the vertical shaft of mining. The traditional water pressure calculation model is not suitable for the stratum conditions in western China. A new
Lian-Fei Kuang +3 more
doaj +1 more source
Sustainable Pd‐Catalyzed Aminations “on Dirty Water”
Angewandte Chemie International Edition, EarlyView.Aminations, done safely yet neat, and therefore, quickly, using low levels of Pd, in “dirty water” that must contain 30% KOH; not NaOH, and not at 5%,10%, 20%, 40%, or 50% KOH. Moreover, no base sensitivity of functional groups! Very cool. Thank you, Nature.
Erfan Oftadeh +4 more
wiley +1 more source