Results 11 to 20 of about 286 (181)

Numerical Simulation Study of Fines Migration Impacts on an Early Water Drainage Period in Undersaturated Coal Seam Gas Reservoirs

Geofluids, 2019
Coal fines migration exerts negative impacts on early water drainage of undersaturated coal seam gas (CSG) reservoirs. The complicated migration process results in ineffective and inaccurate forecast of coal fines production.
Xiaolong Peng, Suyang Zhu, Zhenjiang You, Zhimin Du, Peng Deng, Chaowen Wang, Mingwei Wang   +6 more
doaj   +1 more source

Upcycling Water Pollutants Into Long‐Chain Polymers via Synergistic Interfacial Dechlorination and Organic Radical Stabilization

Angewandte Chemie, EarlyView.
HEO‐regulated electronic structure drives nonradical PI activation, promoting ETP‐mediated polymerization of 4CP into high‐molecular‐weight products with enhanced surface enrichment. Concurrent dechlorination occurs via radical coupling and •OHads attack, enabling efficient carbon retention and selective product evolution at the liquid–solid interface.
Ziwei Yao, Yidi Chen, Penghui Shao, Jian Liu, Xiaodan Wang, Kunsheng Hu, Xubiao Luo, Nanqi Ren, Xiaoguang Duan   +8 more
wiley   +2 more sources

Visual physical simulation experiment of coal fines migration and blockage removal in fractures

Meitan xuebao
The deposition of coal fines in fractures can reduce the fracture conductivity and restrict the efficient and stable development of coalbed methane wells.
Yingchun WEI, Qi ZHANG, Ziliang LIU, Biao LI, Tiancheng XIE, Jinwei REN, Anmin WANG, Daiyong CAO   +7 more
doaj   +1 more source

The working life of Iranians in the South Caucasus; Employment status, working hours and wages (from the end of the 19th century to the beginning of the 20th century) [PDF]

تحقیقات تاریخ اقتصادی ایران
1.IntroductionStatement of the subject: During the Qajar period, especially during the reign of Nasser al-Din Shah, a large part of the Iranian workforce, under the influence of internal conditions and the situation in the Caucasus, legally and illegally
مهدی احمدی
doaj   +1 more source

Study on gas-liquid-solid multiphase flow laws in CBM reservoir

Meikuang Anquan
It is of great practical significance to reveal the law of coal powder migration and production in the unsaturated flow stage of the reservoir for the efficient extraction of coalbed methane (CBM).
Wenlong HAN, Yong LI, Yanbin WANG, Shihu ZHAO   +3 more
doaj   +1 more source

Advancing Lithium–Oxygen Batteries: Pioneering Cathode Catalyst Innovation and Artificial Intelligence‐Driven Design Paradigms

Advanced Materials, EarlyView.
This review summarizes the principles and challenges of nonaqueous lithium‐oxygen batteries and recent advances in cathode catalysts, including carbon‐based materials, metals, oxides, sulfides, nitrides, carbides, and redox mediators. It highlights emerging design strategies and artificial intelligence‐driven approaches, emphasizing data‐assisted ...
Yuqing Yao, Chongyang Hao, Karol Viviana Mejia‐Centeno, Malik Dilshad Khan, Shang Wang, Longqiu Li, Yanhong Tian, Andreu Cabot, Qing Sun   +8 more
wiley   +1 more source

Recent Developments in Energy Storage and Conversion Applications of Multifunctional Vanadium Carbides

Advanced Materials Technologies, EarlyView.
This review systematically explains the synthesis, properties, and energy storage and conversion applications of vanadium carbides. We introduce the structural and the synthetic strategies and reviewed recent developments in the material synthesis processes. The emerging applications of vanadium carbides in energy storage and conversion are highlighted.
Swathy B. Saseendran, Sang Mun Jeong, Chandra Sekhar Rout   +2 more
wiley   +1 more source

Frustrated Lewis Pairs and Metallic Ni Synergistically Enabled Low‐Temperature Hydrogenolysis of Lignin Models

Advanced Science, EarlyView.
Nickel–aluminum composite oxide (NiAlOx‐300) derived from NiAl layered double hydroxide showed high activity for hydrogenolysis of various lignin models. Especially, hydrogenolysis of benzyl phenyl ether could be efficiently proceeded at 20°C and 1 MPa H2.
Jinpeng Liang, Ziyi Ma, Zhaoxi Cai, Kongqian Liang, Chenglei Xiao, Sitong Chen, Na Wang, Zhimin Xue, Chao Xie, Jinliang Song   +9 more
wiley   +1 more source

Advances and Perspectives in Graphene‐Based Quantum Dots Enabled Neuromorphic Devices

Advanced Science, EarlyView.
Graphene‐based QDs are zero‐dimensional carbon nanomaterials with pronounced quantum confinement and tunable electronic structures. Herein, we summarize their synthesis strategies and functionalization methods, and highlight their functional roles and operating mechanisms in devices, as well as recent advances in neuromorphic electronics. We anticipate
Yulin Zhen, Wei Zeng, Zherui Zhao, JiYu Zhao, Ziyan Huang, Zhuo Chen, Kui Zhou, Guanglong Ding, Su‐Ting Han, Ye Zhou   +9 more
wiley   +1 more source

Experimental study on particle migration in propped fractures of coal seam under true triaxial stress

Meitan xuebao
During the production of deep coalbed methane (CBM) after fracturing, the output of coal fines and proppants is prone to occur, leading to a decline in well productivity.
Ruili ZHOU, Chuhao CHEN, Jun ZHENG, Yihang XIAO   +3 more
doaj   +1 more source