Results 61 to 70 of about 15,167 (290)

Uncertainty in the determination of soil hydraulic parameters and its influence on the performance of two hydrological models of different complexity [PDF]

, 2009
Data of soil hydraulic properties forms often a limiting factor in unsaturated zone modelling, especially at the larger scales. Investigations for the hydraulic characterization of soils are time-consuming and costly, and the accuracy of the results ...
Facchi, A., B. Ortuani, Van Dam J. C., Gandolfi, C., C. Gandolfi, Gandolfi C., Horeschi, D., G. Baroni, D. Horeschi, J. C. van Dam, Baroni G., Dam, J.C., van, A. Facchi, Ortuani, B., Baroni, G., Facchi A., Ortuani B., van Dam, J.C., Horeschi D.   +18 more
core   +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

Oxidative Fast Pyrolysis Enabling Autothermal Production of Porous Functionalized Biochar and Anhydrosugar/Phenol‐Rich Bio‐Oil From Biomass

Carbon Energy, EarlyView.
Oxidative fast pyrolysis of biomass enables autothermal production of value‐added products. ABSTRACT Oxidative fast pyrolysis can potentially overcome the heat‐supply bottleneck of conventional fast pyrolysis by enabling autothermal operation while also tailoring product quality through controlled oxygen addition.
Bin Li, Mengge Song, Sunwen Xia, Kexin Jia, Wojciech Jerzak, Yusuf Makarfi Isa, Dongjing Liu, Xing Xie, Qingfa Zhang, Zhong Ma, Mingfeng Wang, Weiwei Liu, Shihong Zhang, Haiping Yang, Rock Keey Liew, Su Shiung Lam   +15 more
wiley   +1 more source

A modification of the mixed form of Richards equation and its application in vertically inhomogeneous soils [PDF]

, 2011
Recently, new soil data maps were developed, which include vertical soil properties like soil type. Implementing those into a multilayer Soil-Vegetation-Atmosphere-Transfer (SVAT) scheme, discontinuities in the water content occur at the interface ...
Ahrens, Bodo, B. Ahrens, F. Kalinka, Kalinka, Frank   +3 more
core   +1 more source

Estimating Unsaturated Hydraulic Conductivity in Unsaturated Soil Using Soil Moisture Sensors

International Journal of Integrated Engineering, 2023
Unsaturated hydraulic conductivity (K) is a measurement of soil water-retaining ability in unsaturated soil. The unsaturated hydraulic properties are necessary to predict the movement of water in unsaturated soil. The current study aims to create an alternative experimental device to estimate theKusing soil moisturesensors. The experimental
Ong Sin Tian, Goh Eng Giap, Rudiyanto Rudiyanto, Mohammad Fadhli Ahmad, Roslaili Abdul Aziz   +4 more
openaire   +1 more source

Unraveling Synergistic Regulation Mechanism in Nitrogen/Sulfur Co‐Doped Biomass‐Derived Hard Carbon Toward Durable Sodium‐Ion Battery Anodes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Nitrogen/sulfur co‐doping optimizes the electron and spatial structure of biomass‐derived hard carbon, and the anode demonstrates superior long‐term cycling stability over 2000 cycles, validating an improved “adsorption‐intercalation‐pore filling” mechanism.
Qian Long, Fangyuan Zhang, Jiayu Qu, Songtao Li, Renfei Cheng, Yaning Zhao, Di Guo, Zhengwang Zhu, Haifeng Zhang   +8 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

Advances in Design Strategy and Mechanism Insights for Alkaline Hydrogen Evolution Reaction: Multilevel Site Engineering and Structure–Activity Relationship

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review is about material design based on engineering multilevel sites from theoretical calculation and synthetic routes to mechanism, structure–activity relationship, challenges and perspectives for boosting hydrogen production in alkaline electrolyte. Electrolytic water splitting is a clean, carbon‐free method for producing green hydrogen and has
Ke Zhang, Hongying Luo, Yudong Du, Kehao Yu, Huayu Wu, Shimin Chai, Yanyan Liu, Yongfeng Wang, Jianchun Jiang, Baojun Li   +9 more
wiley   +1 more source