Results 21 to 30 of about 1,147,237 (164)

Deeper sociological insight needed for behaviour change: A systematic review of Chinese ivory consumption

open access: yesPeople and Nature, Volume 8, Issue 2, Page 270-282, February 2026.
Abstract Chinese consumer demand for ivory threatens vulnerable African elephant populations, despite long‐standing efforts to combat the illegal wildlife trade. Behavioural science approaches have been proposed to address these systemic behaviours. However, their robust use remains uncommon in demand management interventions.
Molly R. C. Brown   +3 more
wiley   +1 more source

COBR工艺在含聚污水处理中的应用研究

open access: yesGongye shui chuli, 2017
渤海S油田因采用聚合物驱油,导致原油中的聚合物含量逐年升高,由此造成炼制此原油的炼厂污水中含有聚合物,使污水生化处理难度增大甚至不能达标处理。在对比筛选多种污水深度处理技术基础上,选用催化臭氧氧化和内循环曝气生物滤池组合工艺(COBR工艺)对该类废水进行深度处理。运行结果表明,该组合工艺能有效去除污水中难生化降解的聚合物等有机物,处理出水COD平均低于45 mg/L。
苏长春, 方健
doaj  

A Micro‐Nano Flower‐Like Na3V2(PO4)3@C Constructed by Polar‐Driven H‐Bond Engineering Toward High‐Rate Sodium Storage

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT The polyanionic compound Na3V2(PO4)3 (NVP) has emerged as a competitive cathode material for sodium‐ion batteries (SIBs), owing to its high‐voltage redox activity (3.4 V vs. the Na+/Na reference couple) and NASICON‐type framework that enables superior ionic conductivity.
Xiaolei Wu   +5 more
wiley   +1 more source

聚合物驱污水混凝剂的研制与性能评价

open access: yesGongye shui chuli, 2010
油田实施聚合物驱后,采出水对化学混凝的敏感性降低,现有药剂的加药成本大幅上升。介绍了一种针对含聚合物污水研制的新型混凝剂的合成、性能和适用条件等。通过对河南油田污水处理的试验表明,当该种混凝剂加入质量浓度为3 500 mg/L时,出水浊度达到3 FTU以下,聚合物去除率达到85%以上,加药成本与聚合铝相比降低80%以上。
罗立新
doaj  

ZrO2-CNB复合光催化剂的制备及其性能研究

open access: yesGongye shui chuli, 2023
以四苯基硼化钠和尿素作为原料,通过热聚合法,利用热诱导前驱体发生缩聚反应,合成硼掺杂石墨相氮化碳(CNB)。然后,将ZrO2与CNB混合均匀,通过煅烧法制备了不同ZrO2含量的复合光催化剂ZrO2-CNB。以甲基橙作为降解目标化合物,探究了ZrO2-CNB的紫外光催化性能,并通过加入各种自由基清除剂,考察了在紫外光照射条件下光催化反应体系中生成的活性物种。研究表明:在所制备的复合光催化剂ZrO2-CNB中,含有质量分数为0.75%的ZrO2的ZrO2-CNB催化剂具有最高的紫外光催化性能 ...
陈卫, 胡文丽, 崔玉民
doaj  

“The Benefits Far Outweigh the Challenges”: Examining Practices of Queer Shared Households in Canada

open access: yesSexuality, Gender &Policy, Volume 9, Issue 1, February 2026.
ABSTRACT This paper focuses on the experiences and practices of LGBTQ+ adults in Canada living in shared housing arrangements. Drawing on qualitative focus group data from eight participants aged 32–67 in three Canadian cities, we identify and discuss three key themes that characterize these arrangements: (a) the material drivers and impacts of shared ...
Celeste Pang   +4 more
wiley   +1 more source

油田配聚污水中S2-的去除方法优化研究

open access: yesGongye shui chuli, 2015
油田回注水中含有大量S2-,其会降低聚合物——部分水解聚丙烯酰胺(HPAM)的黏度,进而影响驱油效果.采用化学氧化法去除油田污水中的S2-,探讨了KMnO4、H2O2和NaClO对S2-的去除效果,考察了油田污水中S2-经氧化去除后聚合物黏度的恢复情况.实验结果表明,3种氧化剂均能有效去除油田污水中的S2-,提高聚合物黏度.经过安全性、方便性、性价比的对比,发现KMnO4既能快速有效地去除S2-,改善聚合物黏度,且使用方便,价格合理,是最优氧化剂.
李向良   +4 more
doaj  

Coexistence and habitat restoration planning for the reintroduction of Spix's macaw

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Spix's macaw (Cyanopsitta spixii) is one of the world's most endangered species. Native to the Caatinga of northeastern Brazil—a region marked by significant socioeconomic vulnerability—the species was considered extinct in the wild in 2000. A reintroduction project, however, returned it to its natural habitat in 2022. The long‐term success of
Ugo Eichler Vercillo   +3 more
wiley   +1 more source

油田采出水的特性及处理技术

open access: yesGongye shui chuli, 2000
总结了油田采出水的特性及现场采用的水处理工艺流程,比较不同处理方法的适用范围及优缺点。指出目前油田现场采出水处理存在的问题,特别是对大庆油田聚合物驱和三元复合驱采出水进行了深入分析,阐明了污水处理难度大的原因是聚合物增加污水粘度,表面活性剂使污水严重乳化,并指出处理该污水的有效途径。
邓述波   +6 more
doaj  

Simple sequence repeats and their expansions: role in plant development, environmental response and adaptation

open access: yesNew Phytologist, Volume 247, Issue 2, Page 504-517, July 2025.
Summary Repetitive DNA is a feature of all organisms, ranging from archaea and plants to humans. DNA repeats can be seen both in coding and in noncoding regions of the genome. Due to the recurring nature of the sequences, simple DNA repeats tend to be more prone to errors during replication and repair, resulting in variability in their unit length ...
Sridevi Sureshkumar   +3 more
wiley   +1 more source

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