Results 41 to 50 of about 7,063 (264)

Steady Flows in Unsaturated Soils Are Stable [PDF]

Transport in Porous Media, 2004
The stability of steady, vertically upward and downward flow of water in a homogeneous layer of soil is analyzed. Three equivalent dimensionless forms of the Richards equation are introduced, namely the pressure head, saturation, and matric flux potential forms.
van Duijn, C. J., Pieters, G. J.M., Raats, P. A.C.   +2 more
openaire   +2 more sources

The Plant‐to‐Plant Circular Strategy: Coupling Photodegradation and Phytoremediation With Plant‐Based Nanomaterials for Plastic Degradation

Advanced Science, EarlyView.
Plant‐based nanomaterials derived from alfalfa serve as dual‐function catalysts, coupling photodegradation and phytoremediation to degrade polyethylene under UV‐A light and in soil. The nanomaterials work synergistically with alfalfa and soil microbes, achieving efficient plastic breakdown without trophic transfer.
Haoran Liu, Lena Ciric, Yuheng Wang, Ziru Pei, Manpreet Bhatti   +4 more
wiley   +1 more source

An isochronous stress ratio logarithmic strain curve based clay creep model considering the effects of hardening and damage

Scientific Reports
Creep is one of the typical mechanical properties of clay, and studying the creep mechanical properties of clay is of great significance to construction projects in clay sites. This study conducted creep tests on Chengdu clay and found that the soil mass
Peng Wang, Yin Tang, Peng Ren, Hua Zhang
doaj   +1 more source

Role of unsaturated soil mechanics in geotechnical engineering

International Journal of Geo-Engineering, 2019
The understanding of unsaturated soil mechanics principles is of interest to a wide spectrum of geotechnical problems associated with soils above water table and compacted soils.
Harianto Rahardjo, Yongmin Kim, Alfrendo Satyanaga   +2 more
doaj   +1 more source

Prediction of soil-water characteristic curve based on pore size distribution of soils

Yantu gongcheng xuebao, 2021
The soil-water characteristic curve (SWCC) is an important curve describing the relationship between the suction of unsaturated soils and the saturation or water content, and is an important basis for analyzing the strength, deformation and seepage of ...
FEI Suo-zhu , TAN Xiao-hui , DONG Xiao-le , ZHA Fu-sheng , XU Long
doaj   +1 more source

Surface and Interfacial Engineering toward Durable Mechanically Coupled Flexible Electronics

Advanced Science, EarlyView.
This Review highlights how surface and interfacial engineering governs the reliability, durability, and functional stability of mechanically coupled flexible electronics. By integrating fundamental interfacial theory, failure mechanisms, multiscale engineering strategies, and representative applications, it provides a design‐oriented framework for ...
Qian Wang, Fangfang Dai, Wei Wu
wiley   +1 more source

Landslide Displacement Prediction With Gated Recurrent Unit and Spatial-Temporal Correlation

Frontiers in Earth Science, 2022
Landslides are geohazards of major concern that can cause casualties and property damage. Short-term landslide displacement prediction is one of the most critical and challenging tasks in landslide deformation analysis, and is beneficial for future ...
Wenli Ma, Wenli Ma, Wenli Ma, Jianhui Dong, Jianhui Dong, Zhanxi Wei, Zhanxi Wei, Zhanxi Wei, Liang Peng, Qihong Wu, Qihong Wu, Chunxia Chen, Yuanzao Wu, Yuanzao Wu, Yuanzao Wu, Feihong Xie, Feihong Xie   +16 more
doaj   +1 more source

Groundwater Rise Sustains the World's Largest Alpine Water System Under Global Warming

Advanced Science, EarlyView.
Shallow groundwater depth (SGWD) across the non‐permafrost plains of the Qinghai–Xizang Plateau decreased at averagely 0.02 m year−1, adding 31.44 Gt of freshwater storage from 2000 to 2020 and sustaining ∼53 500 km2 of alpine ecosystems. A vadose‐zone capacity of 426.6 Gt reveals these aquifers as promising reservoirs, highlighting groundwater's ...
Jianqing Du, Zhixiang Niu, Yanfen Wang, Shirui Zhou, Youqing Yang, Xiang Wei, Haishan Niu, Yitao Zhang, Anquan Xia, Yali Liu, Yanbin Hao, Kai Xue, Bingfang Wu, Xinquan Zhao, Tandong Yao, Yiyu Chen   +15 more
wiley   +1 more source

Bio‐Based Polyurethanes for Sustainable and Multifunctional Applications

Advanced Science, EarlyView.
Bio‐based polyurethanes prepared from vegetable oils, lignin, and polysaccharides have attracted increasing interest as alternatives to fossil‐derived polyurethanes. This review summarizes recent progress in their chemistry, structural engineering, and advanced applications, highlighting the roles of feedstocks, chain‐segment design, dynamic covalent ...
Xin Li, Henghui Deng, Shiwei Yu, Jiawei Huang, Zehong Chen, Dawei Zhao, Chaoqun Zhang   +6 more
wiley   +1 more source

Coupled hydro-thermo-deformation frost heave model for unsaturated expansive soils in seasonally frozen soil regions

Yantu gongcheng xuebao, 2022
A large area of deep residual deluvial expansive soils is distributed in seasonally frozen soil regions in China. Its unique 'frost heave-thaw settlement' and 'expansion-shrinkage' characteristics induce many engineering diseases.
LING Xian-zhang 1, LUO Jun 2, GENG Lin 3, TANG Liang 1
doaj   +1 more source