Results 31 to 40 of about 229,905 (187)
, 2011 本发明涉及适用于酸性电解液液流储能电池的一种有机无机复合离子交换膜及其制备方法。本发明还涉及包含本发明聚合物离子交换膜的酸性电解液液流储能电池。该类复合离子交换膜制备方法简单，容易实现大批量生产。制备的复合离子交换膜具有优良力学强度，其酸性电解液液流储能电池中具有优良的质子传导性和优异的阻隔正负极离子渗透性 ...
史丁秦, 张华民, 李先锋
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Resource Substitution: Local Governments' Issue Attention and Policy Reinvention
Policy Studies Journal, EarlyView.ABSTRACT Research on policy reinvention, where a government modifies rather than replicates policy innovations introduced by other governments, has progressed significantly, but how it is influenced by the government's issue attention has not been thoroughly examined.
Yingxin Zhang, Yixue Yao, Kaifeng Yang
wiley +1 more source
Dizhen xuebao, 2018 以历史重演原则和构造类比原则为基础，提出了一种基于经验分布的大地震复发概率计算方法，该方法不作任何复发概率分布的强假定，直接通过对大量地震序列数据的蒙特卡罗随机抽样来模拟未来大地震的复发规律，进而统计得到未来一段时间内的大地震发生概率，并以鲜水河断裂带炉霍段和道孚段为实例，利用本文给出的复发概率计算方法得出炉霍段和道孚段未来50年大地震发生概率分别为0.15和0.31。
Xing Guo +3 more
doaj +1 more source
, 2015 本发明提供了一种含氟聚酰亚胺红外低发射率复合薄膜材料及其制备方法。该材料由在含氟聚酰亚胺材料中添加1%～10%的纳米无机物形成的复合材料，其中纳米无机物以晶相粉粒分散在含氟聚酰亚胺中。实验证实，添加无机物后所形成的复合材料的热稳定性、耐环境性能以及红外低发射性能均有所提高，尤其是其红外发射率降低幅度较大，因此能够满足对稳定性要求很高的红外隐身材料的要求 ...
薛立新, 陈景, 刘秉鑫, 陈修碧
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Democratic Values in Citizen Participation: What Citizens Prioritize in Participation
Policy Studies Journal, EarlyView.ABSTRACT Citizen participation is often initiated to strengthen democracy. While participatory innovations are typically assessed through normative frameworks emphasizing democratic values, little is known about which of these values are prioritized by citizens.
Take Sipma, Frank Hendriks
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2011 目的探讨微小残留病（MRD）检测在急性髓系白血病预测复发及指导治疗的临床意义。方法选择32例初治急性髓系白血病（除外M3）患者128份标本,利用多参数流式细胞术（FCM）进行微小残留病检测,CD45/SSC设门,选择2-4组四色抗体组合,从诱导化疗后第21天开始,每1-3个月监测一次。结果按照首次诱导治疗后第21天MRD水平将32例AML分为高（MRD>1×10-2）、中（1×10-2>MRD>1×10-4）、低（MRD1×10-2组2年复发率最高 ...
孔令环 +5 more
doaj
, 2010 本发明公开一种新型盐碱土壤修复剂的生产工艺，以海藻及海带渣、贝壳、虾蟹壳、水产品加工下脚料为原料，包括以下步骤：（1）将海藻及海带渣、水产品加工下脚料用烘干机干燥，贝壳、虾蟹壳自然晒干；（2）将海藻及海带渣、贝壳、虾蟹壳、水产品加工下脚料用粉碎机分别粉碎至粒径小于80目；（3）对步骤（2）所得的海藻及海带渣、贝壳、虾蟹壳、水产品加工下脚料粉末用搅拌机充分混匀既得成品，海带渣、贝壳、虾蟹壳、水产品加工下脚料粉末的重量比为5-25：20-60：10-30：10-20；本发明修复剂能够改良盐碱土地 ...
邵洪波 +5 more
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Running With Scissors? Integrating GPT Models Into Public Policy Research
Policy Studies Journal, EarlyView.ABSTRACT The integration of large language models (LLMs) into public policy research presents both exciting opportunities and methodological challenges. This research note explores how OpenAI's GPT can be used to semi‐automate the annotation of legislative testimony within the Advocacy Coalition Framework, focusing on emotion‐belief dyads.
Giulia Mariani, Allegra H. Fullerton
wiley +1 more source
, 2018 航空发动机静子叶片作为压气机的关键部分,对整个航空发动机的性能有着重大影响。采用轻量化纤维增强复合材料叶片,对实现减重、大推重比、高燃油效率起到关键作用。首先介绍了纤维增强树脂基复合材料叶片的设计流程和设计技术进展,然后从静子叶片预成型、成型和切削加工三方面讨论了制造工艺研究状况,并强调了前期设计在航空发动机冷端一体化发展中的重要性,最后通过对国外几种典型复合材料叶片的成功应用案例和当前设计技术以及成型工艺的发展趋势的分析,凸显了2.
史鹏程 +5 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