Results 101 to 110 of about 32,671 (309)

Development of New Three-Dimensional Rock Mass Strength Criteria

, 2018
Two new three-dimensional rock mass strength criteria are developed in this paper by extending an existing rock mass strength criterion. These criteria incorporate the effects of the intermediate principal stress, minimum principal stress and the ...
Xingen, Ma, Kulatilake, Pinnaduwa H.S.W., He, Manchao, Mehranpour, Mohammad Hadi   +3 more
core  

Experimental Investigation on the Effects of Cutting Direction and Joint Spacing on the Cuttability Behaviour of a Conical Pick in Jointed Rock Mass

Applied Sciences
In this study, a series of rock cutting tests was conducted using a conical pick to investigate the effect of joints on roadheader performance. Tests were performed on intact rock and jointed rock mass specimens with three different joint spacings.
Han-Eol Kim, Min-Seong Kim, Wan-Kyu Yoo, Chang-Yong Kim   +3 more
doaj   +1 more source

Smart Exploration of Perovskite Photovoltaics: From AI Driven Discovery to Autonomous Laboratories

Advanced Energy Materials, EarlyView.
In this review, we summarize the fundamentals of AI in automated materials science, and review AI applications in perovskite solar cells. Then, we sum up recent progress in AI‐guided manufacturing optimization, and highlight AI‐driven high‐throughput and autonomous laboratories.
Wenning Chen, Zheyu Zhang, Kelvian T. Mularso, Bonghyun Jo, Hyun Suk Jung   +4 more
wiley   +1 more source

Effect of Joint Morphology on Fracture Behavior for Rock Mass: DEM Investigation on a Single Joint

Eng
This study proposes a novel discrete element modelling (DEM) framework for investigating the fracture behavior of jointed rock masses, with particular emphasis on rock specimens containing a single pre-existing joint.
Chong Wang, Peng-Cheng Shi, Shi-Yue Zhang, Chun-Sheng Wang, Jin-Shuai Wei, Qing-Xiang Meng   +5 more
doaj   +1 more source

Investigation of Moisture‐Induced Degradation Mechanisms and a Reviving Strategy for Sulfide‐Based Solid Electrolytes in All‐Solid‐State Composite Cathode

Advanced Energy Materials, EarlyView.
Moisture exposure induces the formation of reductive solid phases on argyrodite Li6PS5Cl, which destabilize Ni‐rich cathodes by extracting lattice oxygen and inducing surface reconstruction. A brief oxygen‐assisted annealing treatment quenches these reductive phases, restores interfacial stability, and enables effective regeneration and reuse of ...
Yujeong Hwang, Hwiho Kim, Sungjae Seo, Mingyuan Ge, Yongjun Jang, Jongwoo Lim   +5 more
wiley   +1 more source

The influence of the lithological and geotechnical properties of rocks on the morphology of glacial valleys

, 2013
The glacial valley cross-profile has traditionally had its development attrituted to the physical properties of the eroding glacier, with the input of the properties of the eroded rock mass to the development of the valley system considered in a purely ...
Augustinus, Paul Christian
core  

Study on material point failure probability of complex jointed rock masses based on peridynamics

Scientific Reports
In rock masses, the presence of numerous randomly distributed joints introduces uncertainty, making the prediction of failure paths challenging. Among these, key joints significantly influence rock mass fracturing. This study proposes a peridynamics (PD)
Yigong Zhao, Xiaoyan Zhang, Ze Li, Wushu Dong, Yakun Guo   +4 more
doaj   +1 more source

Kenyan Farmers' Policy Priorities During Economic Crisis and Stability: Insights From a Best‐Worst Scaling Experiment

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT Amid rising food and fertilizer prices, understanding farmers' policy preferences is critical for effective crisis response. We use best‐worst scaling experiment to assess Kenyan mobile‐owning crop farmers' preferences for government support under high and normal price scenarios.
Mywish K. Maredia, John Olwande, Jacob Ricker‐Gilbert, David L. Mather, Nicole M. Mason   +4 more
wiley   +1 more source

Predynastic & Pharaonic era Rock-Art in Egypt’s Central Eastern Desert: Distribution, Dating & Interpretation [PDF]

, 2012
The aim of this thesis is to examine the rock-art of Egypt’s Central Eastern Desert in order to outline the petroglyphs’ distribution and influences on their location, to date them, and to explore the reasons why they were created.
LANKESTER, FRANCIS,DAVID
core  

Numerical investigation of bolted rock joints under varying normal stress and joint roughness coefficient conditions

Frontiers in Earth Science
Rock masses are formed through long-term, complex geological processes, and the presence of joints significantly reduces their strength and increases their deformation.
Zhiyong Wang, Zhiyong Wang, Liyun Liao, Liyun Liao, Shiyi Guo, Shiyi Guo, Hanfang Zheng, Xuezhen Wu, Xuezhen Wu   +8 more
doaj   +1 more source