Results 61 to 70 of about 20,101 (307)

Modeling the effect of rainfall intensity on soil‐water nutrient exchange in flooded rice paddies and implications for nitrate fertilizer runoff to the Oita River in Japan

open access: yesWater Resources Research, 2014
This paper examines the effect of rainfall intensity on nutrient exchange at the soil‐water interface of rice paddy fields and the implications to nitrate runoff to the Oita River. The Oita River Basin on Kyushu Island in Japan covers 650 km2 of which 11%
Makoto Higashino, Heinz G. Stefan
doaj   +1 more source

Exposure risk assessment and evaluation of the best management practice for controlling pesticide runoff from paddy fields. Part 2: Model simulation for the herbicide pretilachlor

open access: yes, 2011
BACKGROUND: Monitoring studies revealed high concentrations of pesticides in the drainage canal of paddy fields. It is important to have a way to predict these concentrations in different management scenarios as an assessment tool. A simulation model for
Vu, Son Hong   +4 more
core   +1 more source

Buried Unstrained Germanium Channels: A Lattice‐Matched Platform for Quantum Technology

open access: yesAdvanced Science, EarlyView.
ABSTRACT Strained germanium (ε$\varepsilon$‐Ge) and strained silicon (ε$\varepsilon$‐Si) buried quantum wells have enabled advanced spin‐qubit quantum processors. However, in the absence of suitable lattice‐matched substrates, ε$\varepsilon$‐Ge and ε$\varepsilon$‐Si are deposited on defective, metamorphic SiGe buffers, which may impact device ...
Davide Costa   +10 more
wiley   +1 more source

Studies on the Radiation Balance in the Paddy Field and Water Temperature in the Percolating Paddy Field

open access: yesJournal of Agricultural Meteorology, 1960
In order to research the radiation balance in the paddy field and the relation between water temperature in the percolating paddy field to percolation, the author carried out the observations of the radiation, water temperature, percolation in August 1958 at Nyuzen, Toyama Pref.The radiations were measured by using Beckman's net radiometer ...
openaire   +2 more sources

A Conserved DT2‐bZIP66‐NF‐YC4 Regulatory Module Confers Drought Tolerance in Rice and Arabidopsis

open access: yesAdvanced Science, EarlyView.
This study identifies a conserved tripartiteDT2–bZIP66–NF‐YC4 transcriptional module that enhances rice drought tolerance by activating stress‐responsive genes. This regulatory complex is functionally conserved across cereals and Arabidopsis, providing promising targets for engineering drought‐resilient crops. ABSTRACT Drought stress severely restricts
Jun Shen   +18 more
wiley   +1 more source

Uncovering Aggregation‐Induced Emission in Carbon Dots for Color‐Changing Hydrogels and Information Encryption

open access: yesAngewandte Chemie, EarlyView.
Red‐emissive carbon dots (R‐CDs) exhibiting aggregation‐induced emission (AIE) and aggregation‐caused quenching (ACQ) effects are synthesized from citric acid and urea. They display weak blue fluorescence in water but strong red emission in DMF due to aggregation.
Jiafeng Wan   +11 more
wiley   +2 more sources

Ammonia Volatilization Losses from Paddy Fields under Controlled Irrigation with Different Drainage Treatments

open access: yesThe Scientific World Journal, 2014
The effect of controlled drainage (CD) on ammonia volatilization (AV) losses from paddy fields under controlled irrigation (CI) was investigated by managing water table control levels using a lysimeter. Three drainage treatments were implemented, namely,
Yupu He   +4 more
doaj   +1 more source

Heavy metals in paddy fields in Taiwan: chemical behavior in soil and uptake by brown rice

open access: yes, 2009
Levels of cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni), lead (Pb) and zinc (Zn) were measured in 19 individual paddy fields in Taiwan. Total, reactive, and available metal levels were measured using Aqua Regia, 0.43 N HNO3, 0.1 M HCl, 0.05 M ...
Guo, H.Y., Chu, C.L., Romkens, P.F.A.M.
core  

Terraced paddy field rainfall-runoff mechanism and simulation using a revised tank model

open access: yes, 2014
Terraced paddy fields play important roles in water and soil conservation because their water storage effect reduces and delays flood peaks. This study applies the terraced paddy field rainfall-runoff mechanism to the tank model.
陳榮松, Chen, R.S., Yang, K.H.
core   +1 more source

A Pore or not a Pore? Understanding Pore Size Distributions of Non‐Graphitic Carbon and Atomically‐Dispersed M‐N‐C Materials

open access: yesAdvanced Science, EarlyView.
Gassorption analysis of in‐plane functionalized carbons reveals small, uniform ultramicropore signatures as potential artefacts of specific adsorption of the probe gases. Low‐pressure Langmuir fitting links these features to distinct functionalities via adsorption energies, enabling straightforward quantification of otherwise inaccessible surface‐site ...
Simon W. J. Dietzmann   +9 more
wiley   +1 more source

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