Results 21 to 30 of about 10,166,138 (273)

Effect of Polypropylene Microplastics on Water and Salt Movement and in Saline Soils

open access: yesGuan'gai paishui xuebao, 2023
【Objective】 Polypropylene microplastics are fragments of polypropylene. They exist in soil and have potential impact on soil environment. This paper investigates their influence on water flow and salt redistribution in soil under drip irrigation. 【Method】
WANG Zhichao   +5 more
doaj   +1 more source

The Relationship between Imbibitional Damage and Initial Water Content of Soybeans

open access: yesAgricultural and Biological Chemistry, 1988
The relationship between imbibitional damage and the initial water content of soybean seeds was investigated. Imbibitional damage such as the lack of cotyledons was serious at water contents below 10% but not over 20%. The water content of 10% was the point below which the signal of inorganic phosphate in cytoplasm disappeared in 31P-NMR spectra and ...
ISHIDA, Nobuaki   +4 more
openaire   +2 more sources

Experimental study on swelling force of undisturbed mudstone with low clay mineral

open access: yesShuili Shuiyun Gongcheng Xuebao, 2018
In order to study the influence of the swelling characteristics of soil and initial water content on the undisturbed mudstone swelling force, taking one typical area of undisturbed mudstone of the Second Double-Track Railway as the study object, three ...
WANG Bingzhong   +5 more
doaj   +1 more source

Experimental Study on the Effect of Initial Water Content and Temperature Gradient on Soil Column Segregation Frost Heave

open access: yesGeofluids, 2022
A series of freezing experiments were carried out on the Qinghai silty clay using a one-dimensional soil column particle image velocimetry (PIV) system.
Dong Zhang   +3 more
doaj   +1 more source

Coupled hydro-mechanical behaviour of a Kaolin Clay in the context of the geothermal use of geotechnical structures [PDF]

open access: yesE3S Web of Conferences, 2023
An experimental study regarding the hydro-mechanical behaviour of a Malaysian Kaolin is presented. Strain rate-controlled oedometer tests have been conducted on compacted samples. The influence of initial water content on the pore-size distribution (PSD)
Kayser Timon   +3 more
doaj   +1 more source

Effects of Different Initial Values on the Simulation of Permafrost Hydrothermal Processes at Xidatan Station on the Three-River Regions

open access: yesGaoyuan qixiang, 2022
Different initial values have a profound impact on the simulation of the permafrost hydrothermal process.The observation data from the Xidatan Station in the permafrost region of the Three-river sources regions on the Qinghai-Xizang (Tibet) Plateau, CLM4.
Zihang CHEN   +5 more
doaj   +1 more source

One-dimensional swelling characteristics of expansive soils considering influence of initial states

open access: yesYantu gongcheng xuebao, 2021
Taking the Nanyang medium expansive soil as the research object, the evolution laws of the swelling force and swelling rate of unsaturated remolded soils under different initial conditions (including suction, water content and dry density, etc.) are ...
YE Yun-xue 1, 2, ZOU Wei-lie 2, HAN Zhong 2, XIE Peng 3, ZHANG Jun-feng 4, XU Yong-fu 5
doaj   +1 more source

Using hyperspectral remote sensing data for retrieving canopy water content [PDF]

open access: yes, 2009
Canopy water content (CWC) is important for understanding functioning of terrestrial ecosystems. Spectral derivatives at the slopes of the 970 nm and 1200 nm water absorption features offer good potential as estimators for CWC.
L. Kooistra   +3 more
core   +2 more sources

Isokinetic Total Water Content Probe in a Naturally Aspirating Configuration: Initial Aerodynamic Design and Testing [PDF]

open access: yes, 2008
Recent measurements in wind tunnel and flight experiments have demonstrated that water loss prior to complete evaporation is possible for the hot-wire total water content probes.
Strapp, J. Walter   +7 more
core   +1 more source

Effects of water content and initiator composition on photopolymerization of a model BisGMA/HEMA resin [PDF]

open access: yesDental Materials, 2008
The purpose of this study was to evaluate the effects of photoinitiator type and water content on the polymerization rate (Rp) and degree of conversion (DC) of a model BisGMA/HEMA-based resin.The comonomer mixture consisted of BisGMA/HEMA (60/40 by weight). Different two- or three-component photoinitiator systems were incorporated.
Xinglin, Guo   +4 more
openaire   +2 more sources

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