Results 91 to 100 of about 122,120 (271)

Behavior and phytotoxic activity of pethoxamid in soil under different moisture conditions [PDF]

open access: yes, 2006
Thesis (Ph. D. in Agricultural Science)--University of Tsukuba, (A), no.
Dhareesank Arm
core  

Non‐Precious Metals Enhance Hydrogen Evolution in COF/Cd0.9Cu0.1S S‐Scheme Heterojunctions: KPFM Reveals Charge Transfer Pathways

open access: yesRare Metals, EarlyView.
ABSTRACT Photocatalytic hydrogen production from water splitting is a promising strategy for sustainable and clean energy generation. However, the design of low‐cost, highly active photocatalysts remains a critical challenge. In this study, covalent organic frameworks (COFs) were loaded onto the surface of Cd0.9Cu0.1S to fabricate COF/Cd0.9Cu0.1S ...
Yue Zhao   +3 more
wiley   +1 more source

再生水灌溉对草坪土壤速效养分及盐碱化的效应

open access: yesShuitu Baochi Xuebao, 2006
采用7种水分处理:清水适宜灌(FPI)、混合适宜灌(RFPI)、再生水充分灌(RFI)、再生水适宜灌(RPI)、再生水轻微干旱胁迫(RLWS)、再生水中度干旱胁迫(RMWS)、再生水重度干旱胁迫(RSWS),相应灌溉下限分别为田间持水量70%,70%,80%,70%.60%,50%,40%,灌水定额相同。研究结果表明:与清水灌溉相比,短期内采用再生水灌溉不会使大量氮紊残留于土壤,不会快速提高土壤供磷水平,土壤速效钾含量增加不显著,土壤阳离子含量增加也不显著。再生水灌溉不同水分处理下 ...
彭致功, 杨培岭, 王勇, 任树梅
doaj   +2 more sources

天山北坡土壤水分时空变化及驱动力分析

open access: yesShuitu Baochi Xuebao
目的分析天山北坡土壤水分的时空变化特征及其影响因素,探讨耕地扩张对土壤水分的影响。方法基于2000—2020年的1 km日尺度土壤水分数据、土地利用数据、气象数据等数据,采用Theil-Sen Median趋势分析、Mann-Kendall显著性检验和Pearson相关系数分析,研究0~50 cm土层的土壤水分变化,并通过地理探测器模型探讨影响土壤水分的主要因素及其空间分异特征。结果2000—2020年,天山北坡0~50 cm土层土壤水分总体呈减少趋势,尤其在0~10 cm土层变化最显著 ...
李泓儒, 李超凡
doaj  

不同植被类型沙地表层土壤水分变化特征

open access: yesShuitu Baochi Xuebao, 2007
通过对沙坡头地区不同植被类型沙地土壤表层水分时空变化特征的研究表明,该区不同植被类型沙地土壤表层水分的分布均符合正态分布,降雨使表层土壤水分的空间变异性减小,空间自相关性减弱,分维数减小,空间自相关范围由干旱时的5m左右内变化扩大到几十米,土壤表层水分的空间依赖性增强;在土壤表层水分含量极低的情况下,土壤表层水分的空间变异性规律与土壤水分含量的变化规律一致;在土壤水分含量不是很低的情况下,其空间变异性与土壤表层水分含量变化趋势相反,流沙地、柠条地A、柠条地B、油蒿地 ...
潘颜霞   +3 more
doaj  

Study on the antiseptics-associated changes in physiological conditions of skin surface [PDF]

open access: yes, 1999
消毒剤の皮膚刺激性を成人30名の前腕の皮膚を用いて検討した.臨床で繁用される消毒剤の調査結果をもとに, ポビドンヨード製剤(PVP-1), 日局消毒用エタノール(EtOH), グルコン酸クロルヘキシジン製剤(CHG), およびチオ硫酸ナトリウム製剤(STS)を選択し, 対照群として生理的食塩水(SCI)を用いた.消毒剤塗布部に加え無処理の皮膚において, 単回及び一週間の連続使用後の皮膚表面のpH, 角質水分量, 経表皮水分喪失量, 皮表皮脂量の生理機能の変化を多角的に検討し, 皮膚刺激の調査も加えた ...
田中 愛子   +3 more
core   +1 more source

Morphological and Molecular Characterization of Eimeria saudiensis From Arabian Oryx (Oryx leucoryx) Held in Captivity in the Sultanate of Oman 阿曼苏丹国圈养阿拉伯羚羊 (Oryx leucoryx) 体内沙特艾美球虫 (Eimeria saudiensis) 的形态学与分子特征

open access: yesWildlife Letters, EarlyView.
Eimeria saudiensis represents a genus of apicomplexan parasites capable of inducing coccidiosis in Arabian oryx. Our research concentrated on the morphological and molecular investigation of Eimeria spp. in the captive oryx herd in Oman. The therapeutic and management practices employed at the Mammals Breeding Center were reassessed to diminish ...
Khalid Al‐Habsi   +7 more
wiley   +1 more source

黄土区土壤水分循环水分研究

open access: yesShuitu Baochi Xuebao, 1995
土壤水分循环水平是指一定时期内土壤水分波动变化的平均状态。它是判别土壤水分循环状况优劣的标志之一,土壤水分循环达到平衡状态,并不一定说明土壤水分循环处于最佳状态。只有同时对土壤水平稀状态水分循水平进行,杂技和有可能作出可靠的判断,在一定程度上,生态系统的循环水平可以通过人为措施来调节。
王孟本
doaj  

Development of near infrared (NIR) measuring system for single kernels of grains and its application to rice quality evaluation [PDF]

open access: yes, 2005
Thesis (Ph. D. in Bioresource Engineering)--University of Tsukuba, (A), no.
Rittron Ronnarit
core  

Home - About - Disclaimer - Privacy