Results 81 to 90 of about 23,545 (152)
四川大学学报. 自然科学版, 2014 本文以恒界面池法研究了HNO3介质中TiAP对Th(Ⅳ)的萃取动力学性质.在一定条件下,考察了萃取时间对萃取率的影响,并测定了搅拌速度、温度、界面积以及各反应物初始浓度对萃取速率的影响.实验结果表明:萃取体系在约6h后达到平衡;搅拌速度(120-180rpm)对萃取速率无显著影响,萃取反应的活化能为23.20kJ/mol,萃取过程为界面反应的混合控制模型.在HNO3介质中,TiAP萃取Th(Ⅳ)的化学反应速率方程为:r=-dcTh(NO3)4/dt=k[Th(NO3)4]1.05[TiAP]1.77 ...
刘晓青 +7 more
doaj
Sexuality, Gender &Policy, Volume 9, Issue 3, August 2026.ABSTRACT Menstrual justice is deeply interconnected with water justice, yet these topics remain largely siloed in policy and research—particularly in Canada, where water access is often assumed to be a non‐issue. However, existing literature reveals that inadequate water and infrastructure significantly affect menstrual hygiene, dignity, and health ...
Emma Cowman +4 more
wiley +1 more source
四川大学学报. 自然科学版, 1997 在２０℃和３０℃下，用热动力学面积差法（两点法）研究了极性聚合物（聚乙二醇）、ＣＡＴＢ阳离子表面活性剂及其混合胶束对乙酸乙酯皂化反应的影响；在３０℃下研究了短链醇（乙醇）与ＳＤＳ阴离子表面活性剂混合胶束对正丙酸乙酯皂化反应的影响．结果表明：单一和混合胶束对正脂肪酸乙酯的皂化反应有较强的禁阻作用 ...
陈晓楠 +6 more
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World Water Policy, Volume 12, Issue 3, August 2026.ABSTRACT Groundwater depletion is a major challenge in semiarid, hard‐rock regions where irrigation demands often exceed natural recharge. This study evaluates the effectiveness of farm‐scale recharge pits as a local, supplementary, and community‐managed groundwater recharge solution in the Dharta catchment of Rajasthan, India. Alongside check dams and
Prahlad Soni +4 more
wiley +1 more source
World Water Policy, Volume 12, Issue 3, August 2026.ABSTRACT In Ghana, the government has initiated a reform in rural water management to shift away from community‐based management (CBM) to state management, but research assessing the reform is still insufficient. This study aims to critically evaluate the impact of the reform in addressing rural water challenges.
Ernestina Ohenewaah Denchie, Kevin Lo
wiley +1 more source
野生动物学报, 2019 在全球气候变暖的趋势背景下，夏季高温极端天气屡屡出现，由此产生的热应激为圈养大熊猫带来了严重的负面影响，其相关研究和认识日益得到重视。本文从热应激的概念和发生机制，热应激对大熊猫生理、采食量的影响及高温环境下缓解大熊猫的热应激应对措施等方面进行阐述，旨在为大熊猫饲养管理和该领域的深入研究提供参考。
邓涛 1 +5 more
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Organ‐specific ozone and nitrogen legacies strengthen substrate control over litter decomposition
Functional Ecology, Volume 40, Issue 8, Page 2548-2559, August 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Elevated tropospheric ozone (O3) and nitrogen (N) deposition are concurrent atmospheric changes that strongly influence terrestrial carbon cycling, yet their combined effects on below‐ground decomposition remain poorly understood.
Xiaofan Hou +8 more
wiley +1 more source
Functional Ecology, Volume 40, Issue 8, Page 2590-2601, August 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Permafrost thaw is reshaping nutrient dynamics in boreal forests, but its impacts on tree nutrient limitation and functional strategies remain poorly understood. Clarifying these responses is crucial for predicting the response of boreal forests to climate change.
Qiyue Fu +9 more
wiley +1 more source
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract The design of experiments to investigate the combined effects of multiple stressors requires exposing target organisms to multiple combinations of stressor doses. Concurrent manipulation of stressors is often infeasible with wildlife, but long‐lasting health effects allow individual health to be used as an integrator of prior stressor exposure.
Enrico Pirotta +24 more
wiley +1 more source