Results 71 to 80 of about 1,938 (249)

Self‐Seeded Nucleation of PET in a Benign Solvent Yields a High Modulus Aerogel With Ultra‐Low Thermal Conductivity

Advanced Materials, EarlyView.
A new benign solvent (1,3‐diphenylacetone) enables a simple, safe, and sustainable dissolution and gelation method to convert waste PET into low density, monolithic aerogels with high mechanical strength (E = 20 MPa) and remarkably low thermal conductivity (k = 21.9 to 28.9 mW/m·K).
Kira R. Baugh, Garrett F. Godshall, Glenn A. Spiering, Isabela Trindade Coutinho, Alejandro A. Rodriguez, Katherine J. Wood, Aiyana Gonzalez‐Arellano, Sadeq Malakooti, Stephanie L. Vivod, Robert B. Moore   +9 more
wiley   +1 more source

Prediction of Mine Water Inflow Based on Growth Curve Model

Academic Journal of Science and Technology
During the construction and operation of a coal mine, water inrush incidents frequently occur. Minor water-related accidents can cause delays in mining operations, while major incidents can result in significant losses and casualties. This paper takes a coal mine in Shanxi as a case study, employing growth curve models and optimal weighted coefficient ...
Shang Wang, Qingge Zhang, Shiyuan Tian
openaire   +1 more source

Treatment technology of large flow water gushing in karst depression open-pit mine

Meitan kexue jishu
Karst geology is widely distributed in China, and karst water gushing has become a huge disaster and challenge for the safe production of limestone mines.
Haiyan LI, Maozhe XIA, Kun ZHANG, Bo ZHANG, Huaifeng SUN, Guodong ZHAO, Junfei HAN, Gongjie LIU, Enlei HE   +8 more
doaj   +1 more source

Designable van der Waals Crystal for Artificial Neuronal Cell Mimicking

Advanced Materials, EarlyView.
Designable van der Waals crystal has been demonstrated for device‐scale neuronal cell mimicking. The structural similarity between ion‐channel in biological membranes and layered vdW lattices is realized with nano‐crystallization via Ar + H2S plasma sulfurization.
Jinhyoung Lee, Gunhyoung Kim, Dongho Lee, Seowoo Son, Hyunho Seok, Sihoon Son, Hyunbin Choi, Geonwook Kim, Geumji Back, Hyunkyu Kim, Chaerin Park, Junmin Ahn, Seongyun Je, Chaeyoung Im, Junil Cho, Magdalena Grzeszczyk, Seongho Kim, Eunseo Go, Hyunwoo Shim, Donghwan Choi, Muyoung Kim, Hyoeng‐U. Kim, Won‐Jun Jang, Taesung Kim   +23 more
wiley   +1 more source

Solving hydrogeological parameters of thick sandstone based on various analytical and numerical methods

Meitan kexue jishu
In the process of coal mining, accidents such as water inrush in mines can not only cause huge economic losses, but also seriously threaten the safety of workers. Hydrogeological parameters play an important role in calculating the amount of water inflow
Quanchao ZHOU, Ling LIU, Jisheng LI, Caiyun YIN   +3 more
doaj   +1 more source

High Center‐of‐Mass, Multi‐Legged Soft Robots Powered by Geometrically Encoded Liquid Crystal Elastomer Arc Appendages

Advanced Materials, EarlyView.
Inspired by the octopus and the golden wheel spider, soft robots with liquid crystal elastomer arc fibers as appendages are fabricated to transcend surface constraints through an elevated center of mass and minimal contact footprints. By leveraging curvature‐encoded deformation‐recovery cycles, these robots exhibit contractile, torsional, and flexural ...
Jong Bin Kim, Antonio Proctor Martinez, Yaoye Hong, Ziyun Zhang, Kun‐Yu Wang, Shu Yang   +5 more
wiley   +1 more source

Piezo2 Mediates a Vicious Cycle of “Mechanical Homeostasis Imbalance—Inflammation” in Sensory Nerves and the Cartilage Endplate

Advanced Science, EarlyView.
In a lumbar spine instability model, dorsal root ganglion cells mediate the perception of relevant mechanical stresses through Piezo2 and subsequently release CGRP. CGRP activates the NF‐κB signaling pathway in cartilage endplate cells through the receptor RAMP1.
Hanpeng Xu, Wen Geng, Zhi Du, Yifan Du, Di Wu, Bide Tong, Huaizhen Liang, Xingyu Zhou, Zixuan Ou, Junyu Wei, Kun Wang, Yu Song, Wenbin Hua, Yan Xu, Wencan Ke, Bingjin Wang, Cao Yang   +16 more
wiley   +1 more source

Strategic research on mine water resource protection and utilization in coal mines of Yellow River Basin

Meitan xuebao
The ecological protection and high-quality development of Yellow River Basin constitute a major national strategy, however, water scarcity has become the greatest constraint to its development.
Qiang WU, Junlian GAO, Yifan ZENG, Yang CHENG, Yuxuan WANG   +4 more
doaj   +1 more source

A Rare Allele of ST5 From Wild Rice Enhances Salt Tolerance in Rice

Advanced Science, EarlyView.
A novel salt‐tolerance gene ST5W, characterized by a unique 36‐bp promoter insertion, is found exclusively in a small subset of Oryza rufipogon and is absent in cultivated rice. Field trials confirm ST5W significantly enhances rice yield across diverse genetic backgrounds under saline conditions.
Meng Xing, Jingfen Huang, Qiaoling Yuan, Ziyi Yang, Yanyan Wang, Mingchao Zhao, Yamin Nie, Rui Xu, Hongge Qian, Wenxi Chen, Qiaoling Zhang, Qi Du, Leiyue Geng, Yapeng Li, Ziyi Chen, Shizhuang Wang, Like Lou, Haiyuan Peng, Chongke Zheng, Xianzhi Xie, Xiaoming Zheng, Lifang Zhang, Lianguang Shang, Jiaqiang Sun, Qian Qian, Qingwen Yang, Weihua Qiao   +26 more
wiley   +1 more source

Studies of methane inflow from longwall floor into the mine atmosphere

E3S Web of Conferences
The results of studies assessing methane inflow from longwall floor are presented. Based on mine observation data, the facts of an increase in local gas release from the carbon massif caused by an increase in the reservoir properties of rocks have been confirmed.
Kobylkin Alexander, Kubrin Sergey, Meshcheryakov Dmitry, Pozdeev Evgeny, Zakorshmennyi Iosif   +4 more
openaire   +2 more sources