Results 51 to 60 of about 917 (197)

Research progress and prospects of surfactant flooding in molecular dynamics simulation

Youqi dizhi yu caishoulu
Surfactants are widely used in the tertiary recovery of oilfields， and it is of great significance to study the mechanism of surfactant flooding from the microscopic point of view. In recent years， molecular dynamics （MD） simulation has become essential for oil and gas field development research. The use of MD simulation to study surfactants has become
LIU Feng, HAN Chunshuo, YU Linjun, ZHANG Yi, LIU Yancheng, GAO Xiaoquan, YANG Kai   +6 more
openaire   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

Low‐Temperature in Situ Upgrading of Ultra‐Deep Heavy Oil Using Ni–Ce/MOF–OTf Superacid Catalysts to Enhance Energy Utilization and Sustainability

EcoEnergy, EarlyView.
A triflate‐functionalized Ni–Ce/MOF–OTf superacid enables low‐temperature (∼140°C) in situ upgrading of ultra‐deep heavy oil. It reduces viscosity by 92.11% in 12 h, maintains activity over cycles, and delivers 90.25% recovery with a lower carbon footprint by selective bond cleavage. ABSTRACT Ultra‐deep heavy oil is an important unconventional resource,
Li Wang, Ji‐Xiang Guo, Qiming Huang, Kunpeng Li, Chi Li, Yajie Wu   +5 more
wiley   +1 more source

Anode/Electrolyte Interfacial Engineering Toward Sustainable and Practical Solid‐State Metal‐Sulfur Batteries: A Prospective Review

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Coordinated engineering of the anode, electrolyte, and interface underpins the rational design of next‐generation solid‐state metal‐sulfur batteries. Solid‐state metal‐sulfur batteries are emerging as a transformative energy storage platform with the potential to overcome the fundamental limitations of conventional flooded cells, particularly ...
Ziyu Feng, Hong Zhang, Peng Wang, Ke Lu, Fei Du   +4 more
wiley   +1 more source

Coaxial Core–Shell Carbon–Tin Sulfide Nanohybrids as High‐Performance Electrodes for Long‐Life Supercapacitors

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Illustration of the charge transport pathways in the plasma‐designed coaxial‐core–shell type SnS@VCN nanohybrid electrodes for supercapacitors, along with their excellent rate performance and long‐standing cycle life performance with other SnS‐based electrodes.
Anjana Baby, Janez Zavasnik, Janez Kovač, Neelakandan M. Santhosh   +3 more
wiley   +1 more source

A Novel Multilevel Conceptual Framework for Flood Risk Governance

Environmental Policy and Governance, EarlyView.
ABSTRACT Globally, flood risk is increasing as climate change progresses. Contemporary flood risk management practice often utilises hydrodynamic modelling (for hazard risk assessments), social vulnerability assessments, and risk communications in silo, which fragments evidence‐based decision‐making for effective flood risk management. We hence develop
Aiperi Stambekova, Avidesh Seenath
wiley   +1 more source

A rainfall-runoff simulation model for estimation of flood peaks for small drainage basins: a progress report

, 1970
A parametric rainfall-runoff simulation model is used with point rainfall and daily potential evapotranspiration data to predict flood volume and peak rates of runoff for small drainage areas. The model is based on bulk-parameter approximations to the physical laws governing infiltration, soil moisture accretion and depletion, and surface streamflow ...
Dawdy, D. R. (David R.), 1926-, author, Lichty, Robert W., author, Bergmann, James M., author, U.S. Geological Survey, publisher   +3 more
openaire   +1 more source

Life cycle assessment of a microfluidic electrolytic cell using Bi–Sn nanoparticle catalyst and an ionic liquid electrolyte

Environmental Progress &Sustainable Energy, EarlyView.
Abstract The electrochemical reduction of carbon dioxide (CO2) to produce formic acid is a sustainable and crucial method for combating greenhouse gas emissions and addressing global warming. This study focuses on conducting a life cycle assessment of formic acid synthesis using microfluidic electrolytic cells with Bi–Sn catalyst and [EMIM][BF4] (1 ...
Akaninyene Christopher Offong, Abdulhakim Adeoye Shittu, Sunday Amos Onikanni, James Okpor   +3 more
wiley   +1 more source

From a Probabilistic PBEE Framework to Risk‐Targeted Structural Design With Cascading Hazards: Engineering Application for Seismic–Radiological Safety

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Earthquake‐induced damage of structures can trigger cascading hazards, linking structural performance to nonstructural consequences. In current engineering practice, these two aspects are typically addressed separately, limiting the ability to account for such coupled effects in design.
Matjaž Dolšek, Peter Fajfar, Anže Babič   +2 more
wiley   +1 more source

Climate Driven Water Table Changes and Their Influence on Liquefaction Response of Integral Bridges

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Integral abutment bridges (IABs) eliminate bearings and joints but transfer seismic demand directly into the surrounding soil, making their response highly sensitive to groundwater conditions and soil–structure interaction. This study presents a 60 g centrifuge testing programme on single‐span IABs designed to isolate the influence of water ...
Yazan B. Asia, Gopal S. P. Madabhushi
wiley   +1 more source