Results 41 to 50 of about 29,756 (163)
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT This study presents an assessment of four representative expansive additives—calcium sulphoaluminate–calcium oxide, magnesium oxide, sodium lauryl sulfate, and sodium abietate—and their effects on the expansion behavior, mechanical development, and microstructural characteristics of cemented paste backfill (CPB).
Lijie Guo +5 more
wiley +1 more source
Shuitu Baochi Xuebao, 2007 研究了深圳市1991～2004年的酸雨时空分布、降雨化学组成及其成因分析。结果表明，深圳市酸雨14年间pH平均值为4．98，酸雨频率为44．2％；降雨中SO4^2-与NO3^-比值是3．78：1，低于全国平均值6.4；酸雨夏秋两季较为严重，主要集中在3～9月份，而冬春两季降雨酸度和酸雨频率均较小；酸雨强度由西向东依次减弱；降雨中离子来源主要是工业和交通排放的酸性污染物，但陆地源和海洋源对降雨酸度的影响也较大。
张俊平 +3 more
doaj +2 more sources
Zhongguo shiyan zhenduanxue, 2022 齐墩果酸（3β-hydroxyolean-12-en-28-oicacid,OA）是一种齐墩果烷型的五环三萜类化合物，目前临床上主要用于治疗急性黄疸型肝炎和慢性病毒性肝炎，已有研究证实齐墩果酸具有抗肿瘤、保肝、护肾、抗炎、降血糖血脂及抗血管新生等药学活性，虽然齐墩果酸具有多种活性，但存在水溶性差、生物利用度低的缺点。以上缺点在一定程度上对齐墩果酸的应用和研究开发造成了不同程度的制约，因此人们采用新型材料包合技术改变齐墩果酸的水溶性，从而提高其生物利用度，其中齐墩果酸纳米粒子不仅能够提高齐墩果酸水溶性 ...
马欣月 +4 more
doaj
Development and application of μTAS for detection of foodstuff freshness level [PDF]
, 2012 Thesis (Ph. D. in Biotechnology)--University of Tsukuba, (A), no.
邱 暁麗
core
Functional Ecology, Volume 40, Issue 4, Page 983-1000, April 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Organic phosphorus mineralization is a critical process in the phosphorus cycle, governing phosphorus bioavailability for plants. The PhoD gene, which encodes the key enzyme alkaline phosphatase, serves as a valuable biomarker for this process.
Sandhya Mishra +3 more
wiley +1 more source
Veterinary Dermatology, Volume 37, Issue 2, Page 200-210, April 2026.Background: Antimicrobial stewardship has become vital given the progressive emergence of multidrug‐resistant bacteria, and novel approaches to the treatment of bacterial infections are needed. Recently, reported synergistic effects of antibacterial drugs and bacteriophage therapy have revealed promising applications for the management of meticillin ...
Sarah Ehling +9 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2017 目的探讨婴幼儿肝炎综合征（IHS）患儿干血片氨基酸和肉碱浓度变化的临床意义。方法应用HPLC/MS/MS测定患儿组与对照组干血片氨基酸及肉碱浓度。结果患儿组与对照组相比辛酰基肉碱C8、葵酰基肉碱C10浓度降低,十四烷酰基肉碱C14、十六烷酰基肉碱C16浓度升高 ...
李娴 +6 more
doaj
Integrative Conservation, Volume 5, Issue 1, Page 10-15, March 2026.First confirmed breeding of the Brown Hornbill in China, documented through cooperative feeding in Shangyong Protected Area. ABSTRACT The Brown Hornbill (Anorrhinus austeni), a Near Threatened frugivore, reaches the northern edge of its distribution in southern Yunnan, China, yet breeding had not been previously documented with site‐attributed nests in
Junsong Li +8 more
wiley +1 more source
Shuitu Baochi Xuebao, 2023 为探究不同温度条件下添加碳酸钙对活性有机碳组分及微生物群落组成的影响,以贵州典型黄壤土为研究对象,采用同位素标记法,设置6个处理(培养温度分别为15,25,35 ℃下添加碳酸钙和不添加碳酸钙),通过分析不同温度下碳酸钙添加对土壤活性有机碳、微生物群落组成的影响,揭示外源碳在土壤活性碳库中的分配规律,以期为贵州典型黄壤有机碳固存和改良提供理论依据。结果表明:各温度下添加碳酸钙显著增加土壤DOC和MBC含量(p＜0.01),添加碳酸钙各处理土壤DOC含量在培养第5天均达到最大值,相较于不添加碳酸钙处理 ...
赵娜 +5 more
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Aqueous zinc‐ion batteries (AZIBs) hold great promise for safe and sustainable energy storage, but their commercialization is impeded by severe Zn dendrite growth and interfacial instability. To address these challenges, we propose a defect engineering strategy employing ultrafine ZnAl2O4 (ZAO) nanoparticles (∼5 nm) with oxygen vacancy defects
Yilun Ren +9 more
wiley +1 more source