Results 81 to 90 of about 10,848,381 (289)

The effect of burnt rock on inclined shaft in shallow coal seam and its control technology

Energy Science & Engineering, 2019
Burnt rock is a geo‐material widely existed in many countries. After the rock mass is burned, the fracture is developed, the structure is destroyed, the integrity and strength are reduced, and a good water storage space is formed in suitable hydration ...
Yong Yuan, Zhi‐Heng Liu, Cheng Zhu, Chao‐Feng Yuan, Sheng‐Zhi Wang   +4 more
doaj   +1 more source

UA Little Rock Seminar in Public History (HIST 7391) files on the Little Rock Port Authority, 2017

, 2016
This collection contains the project report, interviews, and transcripts from the University of Arkansas at Little Rock's Seminar in Public History's 2016 project,; Project staff: Jared Craig, Randall Crawford, Michael Fondren, Lyle Grisham, Neal ...
University of Arkansas at Little Rock. Department of History.
core  

Above Room Temperature Ferroelectricity in Epitaxially Strained KTaO3

Advanced Materials, EarlyView.
Through precise epitaxial engineering, the cubic and paraelectric KTaO3${\rm KTaO}_3$ is transformed into a robust ferroelectric. By leveraging lattice‐mismatched substrates to apply controlled epitaxial strain, a stable ferroelectric ground‐state is achieved with a transition temperature as high as 475 K, establishing KTaO3${\rm KTaO}_3$ as a highly ...
Tobias Schwaigert, Salva Salmani‐Rezaie, Sankalpa Hazra, Utkarsh Saha, Maya Ramesh, Aiden Ross, Betül Pamuk, Long‐Qing Chen, David A. Muller, Darrell G. Schlom, Venkatraman Gopalan, Kaveh Ahadi   +11 more
wiley   +1 more source

UA Little Rock Seminar in Public History (HIST 7391) files on the Greater Little Rock Chamber of Commerce, 1999

, 1999
This collection contains the project report, interview transcripts, and audiocassette tapes from the University of Arkansas at Little Rock's Seminar in Public History's 1999 project, "Accomplishing Things Most People Think Just Happen: A History of the ...
University of Arkansas at Little Rock. Department of History.
core  

Engineering Pluripotent Stem Cells‐Derived Inner Ear Organoids With Enhanced Maturation and Reproducibility by Micro‐Topographical Cues

Advanced Materials, EarlyView.
Micro‐topographical cues applied through temporally controlled microscale confinement improve the reproducibility, spatial organization, and neurosensory‐associated features of pluripotent stem cell‐derived inner ear organoids. Integration with a vascularized organoid platform further enables controlled investigation of vascular‐epithelial interactions
Harshita Sharma, Jungeun Lim, Woochan Kim, Yeon Ju Kim, Dream Kim, Shinyull Lee, Chaeyeon Park, Stephen Rhee, Shruthy Kuttapan, Jungho Ha, Sang Wook Park, Kyunghoon Kim, Noo Li Jeon, Sunho Park, Yun‐Hoon Choung, Jangho Kim   +15 more
wiley   +1 more source

Which way do we go? A story-based approach to archaeological based interpretation of the rock art of Castle Rock, Chillagoe, north Queensland, Australia

, 2013
Analysis of the rock art motifs at Castle Rock, near Chillagoe, north Queensland, has shown that this site provides a detailed landscape map of the surrounding country. A series of motifs shaped like asterisks or stars suggest vertical views of a number
Campbell, John B., Galiina Ellwood, W., C. Ray, Owen, Winn, Nicola   +3 more
core  

Surrounding rock control mechanism of deep coal roadways and its application

International Journal of Mining Science and Technology, 2015
Abstract Aiming at the surrounding rock control problem of mining and preparation entries in Xingdong mine with large mining depth, and the comprehensive control countermeasures including high pre-stress cable truss system, this study put forward powerful anchor support system and anchor cable adaption technology to surrounding rock deformation ...
Shengrong Xie, Erpeng Li, Shijun Li, Jinguang Wang, Chongchong He, Yafeng Yang   +5 more
openaire   +1 more source

Interfacial Failure and Self‐Healing in Solid‐State Batteries

Advanced Materials, EarlyView.
Dynamic interfacial self‐healing offers an adaptive route to mitigate coupled mechanical, chemical, and electrochemical degradation in solid‐state batteries. This review connects evolving interfacial failure mechanisms with physical‐flow, chemical‐restoration, stimuli‐responsive, and electric‐field‐assisted repair strategies, highlighting targeted self‐
Xinxin Zhu, Tengfei Dai, Wendi Dou, Zhiheng Li, Kaihua Wen, Yanqun Lv, Ming Zhao, Jun Lu, Zaiping Guo   +8 more
wiley   +1 more source

Polar Wurtzite NbAlN: A Transition‐Metal Nitride Alloy for Polarization‐Engineered GaN Heterostructures

Advanced Materials, EarlyView.
A novel polar wurtzite alloy, NbAlN, is demonstrated as a transition‐metal‐containing polar barrier for GaN heterostructures. Nb atoms form coherent nanoscale enrichment within the wurtzite lattice without disrupting metal polarity. This study demonstrates that transition metals can be integrated into polar nitrides to enable polarization‐related ...
Atsushi Kobayashi, Souta Kurogi, Tomoya Okuda, Riku Kikuchi, Yusuke Wakamoto, Kouei Kubota, Hikaru Sasaki, Kazuhisa Ikeda, Kanako Shojiki, Takahiro Kawamura, Toru Akiyama, Takehito Seki, Takuya Maeda   +12 more
wiley   +1 more source

Stability control of roadway surrounding rocks under repeated mining: a case study

Scientific Reports
Repeated mining makes the deformation and failure of roadway surrounding rocks more complex than those under single-seam conditions. To address the large deformation and support failure in the 40,111 roadway of the Dafosi Coal Mine, this study combined theoretical calculations and numerical simulations to analyze the evolution of stress, displacement ...
Wang, Tong, Wang, Changcheng, Yang, Ke, Ren, Bo, Chi, Xiaolou, Fu, Qiang, Wang, Haiping   +6 more
openaire   +3 more sources