Results 81 to 90 of about 11,379 (260)

A review of numerical simulation research on multi-phase dynamics of high-altitude and long-runout geohazards

Zhongguo dizhi zaihai yu fangzhi xuebao
High-altitude and long-runout geohazards encompass a range of surface processes involving single or cascading geological processes such as rockfalls, landslides, debris flows, and mudflows.
Yang GAO, Haodong YIN, Fuzhen CHEN, Yu ZHUANG   +3 more
doaj   +1 more source

In‐situ asphaltene capture with iron oxide nanoparticles in steam‐assisted gravity drainage (SAGD) for improved recovery and partial upgrading of bitumen

The Canadian Journal of Chemical Engineering, EarlyView.
Key improvements obtained by incorporating nanoparticles into a lab‐scale SAGD process configuration. The bar plots show enhanced oil recovery, reduced viscosity, and increased asphaltene adsorption in nanoparticle‐assisted scenarios compared with conventional SAGD.
Luis Prada, Saleh S. Baakeem, Mabkhot BinDahbag, M. Daniela Contreras‐Mateus, Jesus Botett, Afif Hethnawi, Nashaat N. Nassar   +6 more
wiley   +1 more source

Clathrate hydrate crystallization

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications.
Peter Englezos
wiley   +1 more source

Cryogenic physico-geological phenomena in permafrost regions

, 1964
This translation is the sixth arranged by the Permafrost Subcommittee of the Associate Committee on Soil and Snow Mechanics of the National Research Council of Canada, of the Russian permafrost publication, "Principles of Geocryology". This translation of Chapter XI by S.P.
Kachurin, S. P., National Research Council Canada. Division of Building Research   +1 more
openaire   +1 more source

Molten‐Salt‐Mediated Chemical Looping Oxidative Dehydrogenation of Ethane with In‐Situ Carbon Capture and Utilization

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
A sustainable alternative to steam cracking, the molten‐salt‐mediated oxidative dehydrogenation (MM‐ODH) of ethane (C2H6) in Li2CO3‐Na2CO3‐K2CO3 (LNK) couples thermal cracking with melt‐mediated CO2 capture to realize commercially competitive C2H4 and CO yields. LNK composition strongly influences MM‐ODH process outcomes.
Kyle Vogt‐Lowell, Dennis Chacko, Kunran Yang, Jace Carsten, Junchen Liu, Matthew Housley, Fanxing Li   +6 more
wiley   +1 more source

Morphotectonic Schematization for the Sector of Guamá, Santiago de Cuba

Minería y Geología, 2016
The relief was classified and the active nature of the faults located in the sector of Guamá was evaluated. The application of morphotectonic methods generated a 1:25 000 morphotectonic scheme.
Sandra Rosabal-Domínguez, Alina Rodríguez-Infante, José A. Zapata-Balanqué   +2 more
doaj  

Multi-source data integration and multi-scale modeling framework for progressive prediction of complex geological interfaces in tunneling

Underground Space
A reliable geological model plays a fundamental role in the efficiency and safety of mountain tunnel construction. However, regional models based on limited survey data represent macroscopic geological environments but not detailed internal geological ...
Jingxiao Wang, Peinan Li, Xiaoying Zhuang, Xiaojun Li, Xi Jiang, Jun Wu   +5 more
doaj   +1 more source

Review and prospects of shear test of bolted rock joints

Deep Underground Science and Engineering, EarlyView.
The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren, Fan Yang, Manchao He, Yong Yuan, Zhigang Tao   +4 more
wiley   +1 more source

Shear behavior of bolt–grout interfaces under constant normal stiffness: Influence of grout strength and thickness

Deep Underground Science and Engineering, EarlyView.
The effects of grout strength and thickness on the shear behavior of bolt–grout interfaces (BGI) under constant normal stiffness conditions are investigated. Shear strength, failure modes, and acoustic emission characteristics are examined. The findings reveal that grout strength exerts a significantly greater influence on BGI shear strength and ...
Sunhao Zhang, Dongqi Shang, Yujing Jiang, Jinge Zhang, Hongbin Chen, Tianqi Jiang   +5 more
wiley   +1 more source

Remote sensing interpretation and application of geological environment conditions in early identification of potential geo-hazards: A case study of Huaping county

Carsologica Sinica
Huaping county is located in the mountains bordering the Yunnan–Guizhou Plateau and the Qinghai–Xizang Plateau, where geo-hazards occur frequently. In order to understand the background of disaster generation and the laws of their occurrence, as well as ...
Yanfang YANG, Hejian JU, Yang CHENG, Yong WANG, Shuhao YAN, Shanshan WANG, Qin LI   +6 more
doaj   +1 more source