Results 51 to 60 of about 15,167 (290)

Multi-field coupling analysis of water-heat-salt in composite unsaturated soils

Yantu gongcheng xuebao, 2022
The multi-field coupling problem of water, heat and salt in the composite unsaturated soils composed of unsaturated clay and unsaturated sand is studied. Based on the mass and energy conservation equations for porous media, the temperature, pore pressure,
GAO Guo-yao 1, GUO Wei 1, ZHOU Feng-xi 2
doaj   +1 more source

Lunar‐Based Photothermal CO2 Reduction Strategy: Self‐Evolving Transient Active Interface and Band Engineering

Advanced Science, EarlyView.
A self‐evolving Pd/Ov‐FeTiO3 photothermal catalyst, inspired by lunar soil, enables efficient extraterrestrial CO2 conversion. The formation of transient active interfaces and oxygen vacancies extends light absorption to the infrared range and optimizes electron transfer.
Yahang Wang, Yuhuan Li, Quanxin Wang, Deng Li, Pakkin Leong, Meng Wang, Shi Feng, Runyang Mo, Xianjin Shi, Xiaohui Li, Gangqiang Zhu, Chipui Tang   +11 more
wiley   +1 more source

SUCTION MEASUREMENTS AND WATER RETENTION IN UNSATURATED SOILS [PDF]

, 2008
Techniques for testing unsaturated soils have been investigated by the author where the measurement and control of parameters were undertaken directly. Suction was measured and controlled with a new high suction tensiometer and water content through mass
Lourenço, Sérgio Duarte Nunes
core  

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

Modelling shear strength of compacted soils [PDF]

E3S Web of Conferences, 2019
Compacted soils constitute most engineering projects such as earth dams, embankments, pavements, and engineered slopes because of their high shear strength and low compressibility.
Bulolo Sam, Leong Eng Choon
doaj   +1 more source

A Geomorphometric Approach to Estimate the Deterioration of Earthen Archaeological Sites by Rainfall and Diffusion Processes: The Huaca Chornancap (Eighth–14th Century ad), Lambayeque, Peru

Archaeological Prospection, EarlyView.
ABSTRACT Rain‐induced erosion processes can severely damage Earthen archaeological sites. Huaca Chornancap (HCH; eighth–14th century ad) is a platform located in the Lambayeque region (Peru) exposed to seasonal rain due to El Niño Southern Oscillation (ENSO).
Luigi Magnini, Maria Ilaria Pannaccione Apa, Robert Gutiérrez Cachay, Marco Fernández Manayalle, Carlos Eduardo Wester La Torre, Guido Ventura   +5 more
wiley   +1 more source

Slaking mechanisms of a mudstone and prediction of its number-size distribution considering shape evolution

Soils and Foundations
The wide distribution of mudstone poses challenges to efficient construction and safe long-term maintenance of infrastructure, primarily due to its susceptibility to slaking.
Danxi Sun, Hailong Wang, Hideo Komine, Guojun Cai, Gaofeng Pan, Daichi Ito   +5 more
doaj   +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

From Material Tensions to Organizational Paradoxes: How Manufacturers Cope With the Limits of Circular Product Design

Business Strategy and the Environment, EarlyView.
ABSTRACT Circular product design (CPD) is central to advancing the circular economy by enabling the narrowing, slowing, and closing of resource flows. Yet, its implementation remains persistently challenging for firms. Prior research has largely framed these challenges as discrete barriers, overlooking the structural contradictions embedded in CPD ...
Vanessa Robertson, Nelly Rahimy, Suleika Bort   +2 more
wiley   +1 more source

Experimental Study on Determining Unsaturated Property of Soil

, 1980
This paper deals with the experimental study of hydraulic properties of unsaturated soil. In treating unsaturated zone, a great deal more data are required than are required for the saturated zone, but these properties of soils must be known to apply the
Nishigaki, Makoto, Kono, Iichiro
core   +1 more source