Results 41 to 50 of about 5,371 (247)

A Novel Modified Petroresin Particle (MPRP) With Enhanced Oil–Water Selectivity for Cold Production in Heavy Oil Reservoirs

Advanced Functional Materials, EarlyView.
A novel oil–water selective conformance control agent, MPRP, is prepared via hydrophilic grafting and mechanical granulation. MPRP uniformly disperses in water, cohesively expands upon aging, and readily dissolves in the oil phase. During conformance control, it selectively aggregates in water channeling pathways to form effective plugs without ...
Guang Zhao, Dongfang Lv, Chang Liu, Changxu Wu, Yifei Liu, Caili Dai, Huazhou Li   +6 more
wiley   +1 more source

Inverse analysis method for in-situ stress field of rock mass considering influences of characteristics of layered structure

Yantu gongcheng xuebao
The layered rock mass and its interlayer shearing fracture zone have complex influences on the magnitude and direction of local stress field in underground engineering areas.
ZHAO Meng 1 , NIU Xinqiang 1 , YAN Tianyou 2, XIAO Ming 3
doaj   +1 more source

Experimental analysis of failure process in soft-hard combined rock masses at different inclination angles

Zhongguo dizhi zaihai yu fangzhi xuebao, 2023
In order to investigate the influence of the inclination angle of soft rocks on the evolution process of composite rock mass rupture, this paper conducted uniaxial compression experiments on composite rock masses with different inclination angles of soft
Na ZHAO, Lixin MENG, Haibin MIAO, Yibin ZHANG, Laigui WANG   +4 more
doaj   +1 more source

From Geometry to Function: Programmable Mechanical Response in 3D‐Printed Adipose‐Inspired Soft Metamaterials

Advanced Functional Materials, EarlyView.
Geometry‐driven design of soft cellular metamaterials is systematically investigated by combining experiments, finite element modeling, and statistical prediction. The study quantifies how unit cell geometry and material properties govern stiffness, instability, densification, and energy absorption.
Alice Berardo, Gianmarco Dolino, Damiano Coato, Paolo Gargiulo, Emanuele Luigi Carniel   +4 more
wiley   +1 more source

Tuning Redox Dynamics in Cu‐Based Electrocatalysts: Effect of Secondary Metals

Advanced Functional Materials, EarlyView.
Advanced analysis of operando X‐ray absorption spectroscopy data reveals that secondary metals affect the redox processes in Cu‐based catalysts for electrocatalytic CO2 reduction. This influences the amount of oxides formed under pulsed reaction conditions and the distribution of reaction products.
Martina Rüscher, Andrea Martini, Eduardo Ortega, Lichen Bai, Eric Liberra, Daniel Escalera‐López, Hyo Sang Jeon, Antonia Herzog, Clara Rettenmaier, Dorottya Hursán, David Koshy, Mariana Cecilio de Oliveira Monteiro, Timon Wagner, Leon Jacobse, Felix Haase, Arno Bergmann, Janis Timoshenko, Beatriz Roldan Cuenya   +17 more
wiley   +1 more source

Mechanical properties and acoustic emission characteristics of two dissimilar layers of rock-like specimens with prefabricated parallel fissures

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
Through the uniaxial compression test of double parallel fissured layered rock mass, the mechanical properties of layered rock mass with different fissure dip angle, and the characteristics of acoustic emission (AE) parameters in the process of fracture ...
Jun Hu, Hukun Wang, Zhiguo Xia, Bing Chen, Qingheng Gu, Xinrong Wang, Jinpeng Cao, Xu Liu   +7 more
doaj   +1 more source

Preliminary analysis on basic characteristics and mechanism of rockfalls in layered red rocks with gentle dip angle: A case study of the Tiejiangwan rockfall in Hongya County, Sichuan Province

Zhongguo dizhi zaihai yu fangzhi xuebao, 2023
Gentle dip angle rock slopes are often developed in layered red rocks, which are prone to geological disasters due to the combination of soft and hard lithology.
Wen LIU, Tianbin YU, Meng WANG, Ban SONG, Xichao HUANG, Jihong DONG, Yu JIANG, Yujiang SUN   +7 more
doaj   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

Advanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao, Jiaojiao Zhang, Shideng Yuan, Xinmeng Yu, Keming Wan, Xiaoguang Duan, Zhining Wang   +6 more
wiley   +1 more source

Mitigating Concentration Polarization in Dry‐Processed Ultra‐Thick Cathodes Using a Low‐Viscosity Electrolyte With Soft Li+ Solvation

Advanced Functional Materials, EarlyView.
A low‐viscosity, soft‐solvating methyl ethanoate (ME)‐based electrolyte facilitates electrolyte infiltration into dense dry‐processed ultra‐thick NCM622 cathodes while reducing Li+ desolvation barriers at Li‐metal anodes. Balanced cathode‐scale ion transport and anode‐side interfacial kinetics mitigate concentration polarization and interfacial ...
Jae Bin Park, Yewon Park, Ah Reum Choi, Chaerin Park, Seonhee Jo, Seongwook Chae, Taekyun Kwon, Ji‐Oh Kim, Ji‐Hoon Baik, Sung Hyun Kwon, Minjoon Park, Jin Hong Lee   +11 more
wiley   +1 more source

Analysis of Mining Crack Evolution in Deep Floor Rock Mass with Fault

Geofluids, 2021
To further explore the crack evolution of floor rock mass, the mechanism of fault activation, and water inrush, this paper analyzes the crack initiation and propagation mechanism of floor rock mass and obtains the initiation criteria of shear cracks ...
Juntao Chen, Yi Zhang, Kai Ma, Daozeng Tang, Hao Li, Chengxiang Zhang   +5 more
doaj   +1 more source