Results 31 to 40 of about 1,724 (260)

Innovative method for installing soil moisture probes in a large‐scale undisturbed gravel lysimeter

open access: yesVadose Zone Journal, 2021
Aquifers of coarse gravel are an important source for drinking water; however, coarse sediments are also particularly susceptible to the rapid and long‐range transport of pollutants through the vadose zone.
Margaret E. Stevenson   +7 more
doaj   +1 more source

Study on Mechanical Properties of Gravelly Sand under Different Stress Paths

open access: yesAdvances in Civil Engineering, 2021
To investigate the strength and deformation characteristics of gravelly sand on the Qinghai-Tibet Plateau under different stress paths, a series of triaxial shear tests was conducted under confining pressures of 50–400 kPa in four types of stress path ...
Dongjie Zhang   +6 more
doaj   +1 more source

Geophysical and contamination assessment of soil spatial variability for sustainable precision agriculture in Omu-Aran farm, Northcentral Nigeria

open access: yesHeliyon, 2022
The spatial and temporal variability of soil properties (fluid composition, structure, and water content) and hydrogeological properties employed for sustainable precision agriculture can be obtained from geoelectrical resistivity methods.
O.T. Kayode   +2 more
doaj   +1 more source

Echinoderm‐Inspired Autonomy for Soft‐Legged Robots

open access: yesAdvanced Robotics Research, EarlyView.
Inspired by echinoderms, a modular soft robot achieves autonomous phototaxis without a central controller or explicit communication. Each limb independently adapts its actuation timing through local sensing and short‐term memory. Coordination emerges purely from physical interactions, demonstrating resilience to changes in morphology, environment, and ...
Harmannus A. H. Schomaker   +2 more
wiley   +1 more source

Applicability and reliability of CYY formula based on Chinese dynamic penetration test for liquefaction evaluation of gravelly soils

open access: yesYantu gongcheng xuebao, 2019
The CYY formula, proposed by Cao, Youd and Yuan in 2013 and based on the field investigations of gravelly soil sites liquefied during the 2008 Wenchuan earthquake using the Chinese dynamic penetration test (DPT), has uncertainty regarding applicability ...
CAO Zhen-zhong 1, 3, Kyle M. Rollins 2, YUAN Xiao-ming 3, T. Leslie Youd 2, Michael Talbot 4, Jashod Roy 2, Sara Amoroso 5
doaj   +1 more source

Deformation and failure mechanism of colluvial landslide under sustained rainfall-a case study of Xinzhan landslide in Tongzi County, China

open access: yesAlexandria Engineering Journal, 2023
The failure mechanism of Xinzhan landslide were investigated systematically based on multiple-integrated geotechniques, including field investigations, monitoring, and numerical simulations. Xinzhan landslide is a typical colluvial landslide, composed of
Zhou Ke   +5 more
doaj   +1 more source

Soil Inorganic Electron Acceptors and Carbon Substrates Hierarchically Govern Wetland Methanogenesis Temperature Response

open access: yesAdvanced Science, EarlyView.
ABSTRACT Wetlands constitute Earth's largest natural methane (CH4) source, yet projections of their climate feedback remain uncertain due to poorly constrained temperature sensitivity (Q10‐CH4) of microbial methanogenesis. While water table dynamics have been demonstrated to regulate wetland methanogenesis by altering key soil conditions such as ...
Shuying Qiu   +6 more
wiley   +1 more source

Plate Size Effects in Gravelly Soil Based on In Situ Plate Load Tests and Finite Element Analysis

open access: yesApplied Sciences
The average contact stress–settlement behavior observed in plate load tests provides essential data for reliable foundation design. However, the test plate is often smaller than the actual foundation, requiring size extrapolation to interpret in situ ...
Wenshuai Li   +5 more
doaj   +1 more source

Polychip‐A High‐Throughput Droplet Microfluidics Platform for Interrogating Microbial Interactions

open access: yesAdvanced Science, EarlyView.
Polychip, a fully integrated droplet microfluidics platform, enables high‐throughput, single‐cell resolution screening of polymicrobial interactions. By seamlessly combining six automated microfluidics operations on a single chip, the system accelerates antimicrobial discovery by 11 to 14 times compared to traditional robotic methods.
Jeong Jae Han   +11 more
wiley   +1 more source

Study on the key factors affecting the performance of shield scrapers in gravelly soil strata

open access: yesAlexandria Engineering Journal
Gravelly soil strata exhibit heterogeneity and nonlinearity in their physical and mechanical properties, leading to volatile fluctuations of shield scraper force.
Yang Yang, Nian-En Yi, Xuhui Zhang
doaj   +1 more source

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