Results 81 to 90 of about 15,167 (290)

Buoyant Advection of Gases in Unsaturated Soil [PDF]

open access: yesJournal of Environmental Engineering, 1994
In unsaturated soil, methane and volatile organic compounds can significantly alter the density of soil gas and induce buoyant gas flow. A series of laboratory experiments was conducted in a two-dimensional, homogeneous sand pack with gas permeabilities ranging from 110 to 3,000 darcy. Pure methane gas was injected horizontally into the sand and steady-
Gregory E, Seely   +2 more
openaire   +2 more sources

Coupled Analysis of Desiccation Cracking in Unsaturated Soils through a Non-Local Mathematical Formulation

open access: yesGeosciences, 2019
The formation of desiccation cracks in unsaturated soils as a discontinuity phenomenon can compromise the integrity of civil infrastructure on unsaturated soils. Because of the singularity at such discontinuities, the mathematical modeling of desiccation
Shashank Menon, Xiaoyu Song
doaj   +1 more source

Enhanced peripheral blood mononuclear cell lipid metabolism drives poor immunotherapy response via ferroptotic stress‐induced T cell exhaustion in hepatocellular carcinoma

open access: yesInterdisciplinary Medicine, EarlyView.
Integrated multi‐omics reveals that CD36‐mediated lipid overload in PBMCs drives T cell exhaustion via sub‐lethal ferroptotic stress and AKT suppression. This systemic metabolic signature serves as a robust predictor of immunotherapy response in HCC, suggesting that modulating lipid metabolism can rescue immune fitness.
Ying Zhu   +6 more
wiley   +1 more source

Unsaturated Soil Mechanics.

open access: yesVadose Zone Journal, 2005
NING LU and WILLIAM J. LIKOS. John Wiley and Sons Inc, Hoboken, New Jersey. 2004. Hardcover, 556 pp. $130. ISBN 0-471-44731-5. Unsaturated soil mechanics is a relatively new discipline developed during the past 40 years from classical soil mechanics, which deals with stress, strength ...
Markus Berli, Dani Or
openaire   +1 more source

Towards Water, Food and Energy Security: The Global Challenges and Possible Solutions for a Holistic Vision of Sustainability

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT This invited paper gives an overview of the challenges the world is facing and offers a possible solution for water and food security within the holistic integrated concept of the water–energy–food (WEF) nexus. The paper summarizes the experience the author gained through working on various research projects at national and international ...
Ragab Ragab
wiley   +1 more source

Assessment of the impact of climate change on an instrumented embankment: an unsaturated soil mechanics approach [PDF]

open access: yes, 2011
Climate change has the potential to affect any transportation network that comprises embankments and cuttings built with soil material in an unsaturated state that is exposed to the climate.
MENDES, JOAO
core  

Observations of Unsaturated Soils by Environmental Scanning Electron Microscopy in Dynamic Mode

open access: yes, 2008
The Environmental Scanning Electron Microscope (ESEM) allows observation of hydrated samples in their original state. Imaging can be done at a constant vapour pressure and temperature or in dynamic conditions to observe a sample response to changes of ...
Lourenco, Sergio   +21 more
core   +1 more source

Test verification of stress state variables for unsaturated soils

open access: yesYantu gongcheng xuebao, 2017
In order to verify the reasonableness of two stress state variables for unsaturated soils and to improve the accuracy of tests, the triaxial apparatus for conventional unsaturated soils has been improved to control the pore water pressure, the inner and ...
ZHANG Long1, CHEN Zheng-han 1,2, ZHOU Feng-xi 1, SUN Shu-guo 2, HU Sheng-xia 3, YAO Zhi-hua 4
doaj   +1 more source

Comparative Study on the Field- and Lab-Based Soil-Water Characteristic Curves for Expansive Soils

open access: yesAdvances in Civil Engineering, 2022
Expansive soils are problematic and viewed as a potential hazard for buildings and structures due to swell and shrink phenomena. The damaging effect of these soils is strongly correlated with the soil-water characteristics of expansive soils present in ...
Bakht Zamin   +6 more
doaj   +1 more source

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