Results 51 to 60 of about 1,084 (90)
Shuitu Baochi Xuebao, 2023 以北京市密云板栗林为研究对象,设置植物措施、工程措施和植物+工程措施处理(裸地作为对照)分析不同水土保持单一措施及其组合措施对坡面产流产沙及水沙关系的影响,以期为密云区板栗林水土保持措施的制定提供科学依据。结果表明:植物措施方面,卷柏处理的减流率和减沙率分别为62.8%,88.3%,减流减沙效果优于椰丝毯、狗牙根和结缕草处理;工程措施方面,水平阶处理的减流率和减沙率分别为83.2%,92.9%,减流减沙效果优于鱼鳞坑处理;组合措施方面,水平阶+卷柏处理的减流率和减沙率分别为86.7%,96.1 ...
张萌, 关红杰, 王若水, 张超
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Narrowband near‐infrared (NIR) phosphor‐converted light‐emitting diodes (pc‐LEDs) featuring low full‐width at half maximum (FWHM) and high conversion efficiency are crucial for chemical content evaluation, light therapy, and bioimaging.
Chunshen Li +4 more
wiley +1 more source
Shuitu Baochi Xuebao, 2018 为了研究三峡库区不同林分类型马尾松林的枯落物持水性能，采用野外调查和室内浸泡法，对马尾松纯林（Ⅰ）、马尾松+香椿混交林（Ⅱ）、马尾松+檫木混交林（Ⅲ）、马尾松+盐肤木混交林（Ⅳ）、马尾松+槲栎+檫木混交林（Ⅴ）、马尾松+光皮桦混交林（Ⅵ）、马尾松+木姜子混交林（Ⅶ）7种马尾松林分类型枯落物持水特性进行了研究。结果表明：三峡库区不同林分类型马尾松林枯落物储蓄量为5.39~11.77 t/hm2，枯落物总厚度变化范围为2.14~3.73 cm，枯落物总蓄积量排列顺序为Ⅲ > Ⅳ > Ⅵ > Ⅱ > Ⅴ ...
袁秀锦 +5 more
doaj
Shuitu Baochi Xuebao, 2021 以吉林省汪清县林业局天然云冷杉针阔混交林为研究对象，选取4块具有代表性的1 hm2方形固定样地分别设置0，6.29%，11.22%和21.21% 4种采伐强度，测定了各采伐强度下枯落物的现存量，并采用室内浸水法对不同分解阶段枯落物持水能力（最大持水量、最大持水率、有效拦蓄量等）进行研究。结果表明：（1）4种采伐强度的枯落物总现存量为29.04~35.26 t/hm2。（2）随采伐强度增加，新鲜层和完全分解层枯落物最大持水量和有效拦蓄量均呈现先降低再增加随后又降低的规律 ...
杜雪 +4 more
doaj
Preparation of Bamboo Charcoal Supported Al3+ and Study on Its Adsorption and Catalytic Activity of p-nitrophenol [PDF]
, 2010 竹炭是竹材热解得到的主要产品，是一种在环境保护、医学和食品等领域具有广阔应用前景的新型吸附材料。但由于生产工艺等问题，直接将竹炭应用于废水处理存在吸附容量小，吸附选择性差等问题，所以对竹炭进行各种处理以期提高其吸附性能越来越受到人们的关注。用作农药、医药和染料生产原料的对硝基苯酚(p-nitrophenol，PNP)是一种高毒性、很难被生物降解的有机物，从生产排放的废水中去除对硝基苯酚有多种方法，其中吸附法由于不引人新的污染物，且能从废水中分离有机污染物，实现废物回收再利用，因而在水处理中得到广泛应用。
李娇
core
Effects of soluble soybean polysaccharides on the formation of gel formation of soybean protein isolate [PDF]
ObjectiveThis study aimed to investigate the effect of soluble soybean polysaccharides (SSPS) on gel formation and properties of soybean protein isolate (SPI).MethodsSPI suspension and gels with different amounts of SSPS were prepared, and SPI suspension
GE Yuhong +3 more
core +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Recently, cobalt/nitrogen co‐doped materials have emerged as heterogeneous catalysts to activate peroxymonosulfate (PMS) and have been applied to advanced oxidation processes for environmental remediation. However, their recyclability and reusability remain major barriers to practical application.
Wen‐Kai Zhu +11 more
wiley +1 more source
Shuitu Baochi Xuebao, 2016 为探究密度调控措施对华北落叶松（Larix principis-rupprechtii Mayr）人工林枯落物水文效应的影响，以山西太岳山好地方林场35 a生华北落叶松（principis-rupprechtii L.）人工林为研究对象，采用样地调查和室内浸泡法分析了不同密度调控处理下未分解层和半分解层枯落物储量、枯落物持水特征、枯落物持水量和持水速率及其与浸水时间的关系。结果表明：（1）4种密度调控处理枯落物储量由大到小依次为：轻度密度调控处理（LT）＞中度密度调控处理（MT）＞重度密度调控处理（HT）
白英辰 +6 more
doaj
Effects of Texture Properties of Konjac Glucomannan Gel on Starch Digestion and Appetite [PDF]
This study focused on the effects of texture characteristics of konjac glucomannan (KGM)-starch composite gel on oral processing behavior, in vitro digestion characteristics, and postprandial appetite of subjects.
SUN Yang, XU Chenfeng, CHENG Kaixuan, KANG Yu, LIU Bowen, ZHANG Chi, CHEN Shuai, SHANG Longchen
core +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.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