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城市高架桥抗震支撑体系优化设计与经济性分析 被引量:7
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作者 管仲国 沙丽新 李建中 《桥梁建设》 EI CSCD 北大核心 2014年第2期78-84,共7页
为了优选城市高架桥抗震支撑体系,促进减、隔震技术的合理应用,以嘉闵高架桥为依托,针对系列标准跨桥梁,考虑不同墩高和截面尺寸,分别选用延性抗震体系与减、隔震体系,分析其地震响应规律,并通过合理匹配地震需求与结构能力,对基础等主... 为了优选城市高架桥抗震支撑体系,促进减、隔震技术的合理应用,以嘉闵高架桥为依托,针对系列标准跨桥梁,考虑不同墩高和截面尺寸,分别选用延性抗震体系与减、隔震体系,分析其地震响应规律,并通过合理匹配地震需求与结构能力,对基础等主要构件的设计参数进行了优化分析,在此基础上,进一步分析了2种抗震体系的经济性。研究结果表明:延性抗震体系适用于高墩区,合理选择墩柱截面尺寸可以显著优化结构体系,并有效降低其总体造价;减、隔震体系更适用于矮墩区,尽管其价格远高于普通盆式支座,但采用减、隔震体系后基础部分的造价可节约,进而在总体上获得较好的经济性。 展开更多
关键词 高架桥 抗震体系 延性抗震 隔震技术 经济性 有限元法
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Dynamic interaction in tropical Africa:IGCP-616Y and IGCP 646 projects and events
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作者 Boniface Kankeu Izuchukwu Mike Akaegbobi +7 位作者 Asiedu Daniel K Reinhard O.Greiling Jürgen Runge Christopher Fuanya Sylvestre Ganno Jean Paul Nzenti Jean Bassahak Joseph Victor Hell 《Episodes》 2020年第2期825-831,共7页
The scientific objectives and research program of the IGCP-646 project(2015-2018)cuts across many disciplines and includes various aspects of continental basement geology,resource exploration(mineral,water and hydroca... The scientific objectives and research program of the IGCP-646 project(2015-2018)cuts across many disciplines and includes various aspects of continental basement geology,resource exploration(mineral,water and hydrocarbons),geohazard mitigation,and climate change,all of which are of critical importance to developing countries,particularly in parts of West Africa where population pressures are on the rise.Considerable emphasis was placed on capacity building,creation of opportunities for young scientists to undertake higher degrees programs,knowledge transfer and training.The SIDA-funded“pilot project”IGCP-616Y(started in 2012),focused on three objects(i)crustal architecture,tectonic evolution and regional geology of Central Africa and the connection with NE Brazil;(ii)the Mesozoic continental rifting and breakup leading to a better integration of the onshore and offshore geology;(iii)clarification and quantification of the links between basement structures,neotectonics,climate change and landscape evolution.The IGCP-616Y and IGCP-646 projects consisted of over 250 researchers,from different countries.In the course of the projects,six annual meetings,four field trips/workshops,as well as several training sessions were organized.Here we provide a summary of the scientific targets of the projects and a summary of the organized activities. 展开更多
关键词 dynamic interaction tropical africa igcp y climate changeall hydrocarbons geohazard mitigationand IGCP continental basement geologyresource exploration mineralwater capacity buildingcreation
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Unlocking the potential of designed microbial consortia: A breakthrough for sustainable waste management and climate resilience
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作者 Ginevra Giangeri Stefano Campanaro +1 位作者 Nikos C.Kyrpides Irini Angelidaki 《Environmental Science and Ecotechnology》 2025年第3期21-24,共4页
While the global waste crisis is intensifying,we are missing a crucial opportunity to address this challenge by embracing a transformative approach:engineered microbial consortia have the potential to revolutionize in... While the global waste crisis is intensifying,we are missing a crucial opportunity to address this challenge by embracing a transformative approach:engineered microbial consortia have the potential to revolutionize industrial waste management,reduce greenhouse gas emissions for climate mitigation,and promote a sustainable bioeconomy.Greenhouse gas emissions(GHG)from industrial processes pose a notable threat to planetary health[1].The need for biotechnological solutions specifically targeting CO_(2) capture and recycling for bio-based compounds and energy production is clear but far from achieved[2].There are one trillion microorganisms with a pangenome covering an unspeakable potential of processes.Microbes could provide a solution to many of the challenges our planet is currently facing,such as restoring environmental health,substituting fossil fuels-originating chemicals and products with biomassoriginating ones,enabling regenerative agriculture,restoring eutrophic water recipients,reducing biodiversity losses,and mitigating pollution. 展开更多
关键词 climate mitigationand microbial consortia industrial waste managementreduce greenhouse gas emissions transformative approach engineered microbial consortia biotechnological solutions greenhouse gas emissions global waste crisis sustainable waste management
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