Results 11 to 20 of about 194,077 (135)
Gongye shui chuli, 2014 油田污水处理系统常用的过滤器有两种：水力加气方式清洗滤料的多介质过滤器和机械搅拌方式清洗滤料的核桃壳过滤器。改性污水处理工艺产生的污泥主要成分是碳酸钙，过滤时极易穿透吸附在滤床滤料上，使滤料不能彻底洗净，再生难度加大。研制了一种新型体外清洗滤料核桃壳过滤器，采用独特的滤料罐外流化循环大强度清洗技术，能彻底清洗滤料，使滤料再生，同时污水处理能力较多介质过滤器提高了一倍，用水量降至原来的25%左右，具有推广价值。
唐俊, 严辉容, 陈岚, 郑立新
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Identical Platform, Divergent Publics: Sweden and Finland During the 2022 NATO Crisis
Policy &Internet, Volume 18, Issue 3, September 2026.ABSTRACT Digital platforms are often theorized as universal drivers of political polarization, yet empirical patterns remain inconsistent across countries. Leveraging the natural‐experiment logic of Sweden's and Finland's simultaneous 2022 NATO applications and the NATO–Turkey diplomatic crisis, this study examines how national political cultures ...
Selcen Ozturkcan
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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
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金属有机骨架
Fushe yanjiu yu fushe gongyi xuebao为了改善传统聚丙烯熔喷空气过滤材料功能单一、过滤稳定性差的缺陷，本研究利用电子束辐射接枝技术将金属有机骨架（ZIF-8）接枝在聚丙烯（PP）无纺布上，快速制备抗菌空气过滤材料。通过扫描电镜、红外光谱、X射线衍射、热重分析、接触角测定等方法对空气过滤材料进行分析表征。结果表明，ZIF-8在电子束辐射接枝下牢固结合在聚丙烯纤维上。过滤测试表明，抗菌空气过滤材料具有高效稳定的过滤性能，与原PP空气过滤材料相比，针对PM1.0的品质因子及过滤效率分别增长了13.02%和12.08 ...
朱 砚龙 +6 more
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Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Bio‐inspired artificial vision systems have made significant progress, but most focus on photo‐receptors, neglecting the hardware implementation of the efficient downstream neural circuits for complex computations like motion detection. To overcome this bottleneck, we demonstrate a neuromorphic vision system that mimics Drosophila's motion ...
Xianyu Hu +4 more
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Gongye shui chuli, 2000 介绍了国外硅藻土助滤剂在过滤水中的应用和近年国内研究工作概况。有关资料表明，硅藻土过滤技术可用于饮用水、工业用水、游泳池水过滤以及工业废水、生活污水处理后的过滤净化。过滤设备简单、占地少、易操作、费用低、效果好，主要可滤除细微悬浮物、胶体物质、细菌病毒等，滤水清亮透明。
王泽民
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Methods in Ecology and Evolution, Volume 17, Issue 6, Page 1896-1909, June 2026.Abstract Molecular identification of insect food webs can accurately reveal complex trophic interactions and serve as a foundation for understanding ecosystem functioning and advancing biodiversity conservation. This process typically involves DNA library construction, high‐throughput sequencing and subsequent steps, including data assembly, annotation,
Xiao‐man Zhang +9 more
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Conservation Biology, Volume 40, Issue 3, June 2026.Abstract Despite the crucial role of human impacts on biodiversity loss, many assessments of this loss focus on single metrics, such as species richness, and overlook the multidimensional effects of human activities. Because of its importance to ecosystem functioning, we investigated the functional diversity of medium‐ and large‐sized mammal ...
Xueyou Li +8 more
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Ecology and Evolution, Volume 16, Issue 5, May 2026.This study reveals a shift in woody plant community assembly from competitive exclusion in early succession to habitat filtering in later stages within karst areas. Environmental distance (80.54%) contributed significantly more than geographical distance (9.95%), providing strong quantitative evidence that niche processes, particularly habitat ...
Hongfen Hu +5 more
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Gongye shui chuli, 2009 对下进水囊式纤维过滤器、下孔板浮动型纤维过滤器、上孔板浮动型纤维过滤器的优缺点和运行效果进行对比分析,指出3种过滤器适合应用的水质;并且探讨了提高纤维过滤器反洗效果的方法。
喻军 +4 more
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