Results 51 to 60 of about 10,712 (195)
Lowering Blood Lipids and Regulating Intestinal Flora Effects of Blueberry Enzyme in Hyperlipidemic Mice [PDF]
The effects of blueberry enzyme on dysregulated lipid metabolism and intestinal microbiota in hyperlipidemic mice were investigated, using blueberry juice as a control, they were divided into normal group, model group, simvastatin group, high-dose ...
Binyan YANG +3 more
core +1 more source
Transmission power control and scheduling algorithm in wireless body area networks [PDF]
, 2015 Wireless body area networks(WBAN)were expecting to play an essential role for healthcare,sports,leisure,and all the aspect of our daily life.The purpose was to solve two key issues of WBAN.The first issue was which sensor should transmit during each time
Feng-ye HU +3 more
core +1 more source
Functional Ecology, Volume 39, Issue 12, Page 3504-3516, December 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Nitrogen (N) deposition strongly affects litter decomposition and nutrient release, thereby reshaping carbon cycling in terrestrial ecosystems. Although most studies have focused on above‐ground litter, the effects of N addition on fine root decomposition and their ...
Yuneng Wang +5 more
wiley +1 more source
Study on origin traceability and year characterization by NMR and NIR spectroscopy [PDF]
, 2017 茶树是一种重要的经济作物，在中国已有四五千年的种植历史。近年来，国内外市场对茶叶的需求量不断增加，为我国茶叶市场的发展提供了广阔的舞台。随着经济发展和居民生活水平的提高，人们对茶叶品质的要求也越来越高。 长期以来，人工评审作为茶叶品质判断的一种传统方式，主要通过茶叶的外形、香气、汤色、滋味和叶底五方面的信息对茶叶品质做出整体的评判。但这种感官评判的方法对审评人员具有较高的专业要求，评判结果易受外界因素干扰，而且缺乏科学量化的数据支持。因此，发展快速准确无偏向性的方法来定量分析茶叶中的化学成分 ...
孟维君
core
Ecology and Evolution, Volume 15, Issue 10, October 2025.This paper proposes a ‘relaxed’ point‐count survey method to enhance accessibility and expand geographic coverage by easing these constraints. Surveys can be conducted in diverse locations, including urban areas and travel routes, within flexible timeframes (e.g., 6 h after sunrise or during the evening) and with adaptable spacing between survey points,
Masumi Hisano
wiley +1 more source
Dianci bileiqi, 2015 针对ZnO压敏电阻多片并联时能量吸收的问题,基于全能量分析法,通过改变ZnO压敏电阻的并联片数及压敏电压的大小,对多片并联的ZnO压敏电阻进行8/20μs波形冲击试验,可以得出以下结论:多片压敏电阻并联时,各片压敏电阻的吸收能量随着冲击电压的上升而呈现线性增长的趋势,且压敏电阻相互间的压敏电压越接近,吸收能量越均匀,该现象可以由空穴诱导隧道击穿理论解释;能量吸收比随着冲击电压的增加呈现出线性递减的趋势,从能量释放角度证明了多片并联的压敏电阻可以有效保护后级设备,对实际应用具有一定的参考价值意义。
李祥超 +5 more
doaj
Theoretical Study on the Enhancement Mechanism of SERS of Benzene-like Derivatives [PDF]
, 2016 由于拉曼光谱能够提供分子结构和动力学信息，今天它已经成为用途广泛的分子识别技术。但是拉曼信号非常微弱，通常需要利用某种增强效应来放大信号。研究者发现，在特殊制备的一些金属或者溶胶中，吸附分子的拉曼信号大大增强。表面增强拉曼光谱(SERS)有效克服了拉曼散射灵敏度低的缺点，在表面科学、分析科学等领域很快发展起来。SERS的增强机理被归纳为两类：物理增强和化学增强。物理增强主要来源于金属表面与入射光电场的耦合作用，化学增强则以金属表面对分子极化率的影响为出发点 ...
刘立倩
core
Functional Ecology, Volume 39, Issue 10, Page 2889-2904, October 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract In the Southwest Australian Biodiversity Hotspot, the greatest plant species diversity tends to occur on the most phosphorus (P)‐impoverished soils. Many plant species in this P‐impoverished environment release root carboxylates that mobilise soil P which is a more ...
Xue Meng Zhou +5 more
wiley +1 more source
Gaoya dianqi, 2001 本文依据国内外有关的模拟试验和计算研究成果 ,结合生产实际 ,分析了影响ZnO电阻片能量吸收能力的各种因素 ,介绍了几种提高ZnO电阻片能量吸收能力行之有效的方法。
郭洁
doaj
Dianci bileiqi, 2020 在换流站金属转换开关（MRTB）转换操作的过程中,并联的避雷器组在开关动作后需要快速吸收大量能量。但是多柱并联结构的避雷器普遍存在氧化锌电阻片能量吸收不均的问题,在长期运行多次动作后以及环境因素影响下,避雷器组局部伏安特性降低会使较小阻抗的单柱氧化锌承受更大能量,吸收能量超出其热容量时会发生热崩溃导致击穿故障。近几年多次发生由于避雷器组损坏而导致金属转换开关转换失败的事故。为了解决避雷器故障的问题,本文以±660 kV宁东换流站为例,通过理论计算以及仿真分析提出金属转换开关避雷器参数要求 ...
刘志远 +4 more
doaj