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检索条件"机构=Univ Assiut"
17893 条 记 录,以下是1-10 订阅
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A New Trinortriterpenoid from Cleome chrysantha
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Chinese Chemical Letters 1998年 第12期9卷 0-0页
作者: Ye Gao CHEN Guo Wei QIN (Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 200031)Arafa I. HAMED (Faculty of Science, South Valley university, Aswan 81528, Egypt)Nasra EL-EMARY (Faculty of Pharmacy, assiut university, assiut Chinese Acad Sci Shanghai Inst Mat Med Shanghai 200031 Peoples R China S Valley univ Fac Sci Aswan 81528 Egypt univ assiut Assiut 71526 Egypt univ Hong Kong Dept Chem Hong Kong Peoples R China
A new trinortriterpenoid, 1-epibrachycarpone, was isolated from the aerial parts ofCleome chrysantha. Its stfucture was elucidated by spectral and X-ray crystallographic studies.
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Integrating flood and earthquake resilience: a framework for assessing urban community resilience against multiple hazards
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JOURNAL OF SAFETY SCIENCE AND RESILIENCE 2024年 第3期5卷 330-343页
作者: Ahmadi, Zahra Ghasemi, Mahdi Khavarian-Garmsir, Amir Reza Ahmadi, Mohammad Yazd univ Fac Art & Architecture Urbanism Dept Yazd Iran Yazd univ Fac Art & Architecture Dept Architecture Yazd Iran univ Isfahan Fac Geog Sci & Planning Dept Geog & Urban Planning Esfahan Iran Islamic Azad univ Dept Civil Engn Tabriz Branch Tabriz Iran
Floods and earthquakes are the most common natural disasters, causing significant damage and casualties in urban communities. Although academic research has focused on assessing cities' ability to withstand these natu... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Use of graphs to assess well safety in drilling projects and during operations by identification of available barrier elements and consolidation of barrier envelopes
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PETROLEUM RESEARCH 2024年 第3期9卷 418-431页
作者: Choueri Jr, Nelson Jaculli, Marcelo Anunciacao Leite, Amanda Gabriela Aparecida Silva Mendes, Jose Ricardo Pelaquim univ Estadual Campinas Campinas Brazil
Two independent barrier envelopes are the usual requirement used in most well operations to avoid catastrophic accidents. These are classified as primary- concerning preventing the occurrence of a kick, and secondary-... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Properties of the phase diagram from the Nambu-Jona-Lasino model with a scalar-vector interaction
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NUCLEAR SCIENCE AND TECHNIQUES 2024年 第10期35卷 1-12页
作者: Yang, Yong-Hang Liu, He Chu, Peng-Cheng Qingdao univ Technol Sch Sci Qingdao 266520 Peoples R China Qingdao univ Technol Res Ctr Theoret Phys Qingdao 266033 Peoples R China
We investigated the properties of the phase diagram of high-order susceptibilities, speed of sound, and polytropic index based on an extended Nambu-Jona-Lasinio model with an eight-quark scalar-vector interaction. Non... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
MOF synthesis using waste PET for applications of adsorption, catalysis and energy storage
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GREEN ENERGY & ENVIRONMENT 2024年 第11期9卷 1650-1665页
作者: Li, Hongmei Lei, Jinming Zhu, Liying Yao, Yanling Li, Yuanhua Li, Tianhao Qiu, Chuntian Chengdu univ Coll Food & Bioengn Chengdu 610106 Peoples R China Zhejiang univ ZJU Hangzhou Global Sci & Technol Innovat Ctr Hangzhou 311215 Peoples R China Huizhou univ Sch Chem & Mat Engn Huizhou 516007 Peoples R China Southwest univ Sch Mat & Energy Chongqing Key Lab Adv Mat & Technol Clean Energy Chongqing 400715 Peoples R China Southwest univ Yibin Acad Univ Rd Yibin 644005 Sichuan Peoples R China
Polyethylene terephthalate (PET) as one of non-degradable wastes has become a huge threat to the environment and human health. Chemical Recycle of PET is a sustainable way to release 1,4-benzenedicarboxylic acid (BDC)... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Investigation of a solid particle deposition velocity in drag reducing fluids with salinity
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PETROLEUM RESEARCH 2024年 第3期9卷 347-358页
作者: Obi, Chinemerem Rahman, Mohammad Azizur Hassan, Ibrahim Hasan, Rashid Texas A&M univ Doha Qatar Texas A&M univ CS College Stn TX 77840 USA
Optimal and cost-effective drilling operations in extended-reach horizontal wells depend on efficient solid cuttings removal from the borehole. Several solids-suspended multiphase processes such as crude petroleum tra... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Design of a Socially Inclusive Climate Risk Transfer Mechanism: A Case Study in La Guajira, Colombia
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INTERNATIONAL JOURNAL OF DISASTER RISK SCIENCE 2024年 第4期15卷 565-578页
作者: Lopera, Cristian Camilo Fernandez Mendes, Jose Manuel Barata, Eduardo Jorge univ Coimbra Inst Interdisciplinary Res Ctr Social Studies P-3000995 Coimbra Portugal univ Coimbra Fac Econ Ctr Social Studies P-3000995 Coimbra Portugal univ Coimbra Fac Econ CeBER P-3004512 Coimbra Portugal
The primary aim of this study was to develop a model of a socially inclusive climate risk insurance (CRI) mechanism based on the differential risk transfer approach. This study focused on the department of La Guajira,... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Development of a MWDC prototype of the CSR external-target experiment
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NUCLEAR SCIENCE AND TECHNIQUES 2024年 第10期35卷 1-14页
作者: He, Zhou-Bo Qin, Zhi Ma, Peng Yang, He-Run Wei, Xiang-Lun Lu, Chen-Gui Wen, Xiang-Jie Zhang, Xiu-Ling Chen, Tao Li, Zhi-Jie Yang, Yuan-Sheng Zhan, Mei-Qiang Liu, Can-Wen Li, Meng Qiu, Tian-Li Gong, Yi-Wei Huang, Xin-Jie Yin, Xiao-Hao He, Zhi-Xuan Zhang, Jun-Wei Zou, Hai-Chuan Fu, Sheng-Wei Guo, Dong Yan, Jun-Wei Cao, Zhe Deng, Zhi Kong, Jie Xiao, Zhi-Gang Hu, Rong-Jiang Duan, Li-Min Chinese Acad Sci Inst Modern Phys Lanzhou 730000 Peoples R China univ Chinese Acad Sci Sch Nucl Sci & Technol Beijing 100049 Peoples R China Tsinghua univ Dept Phys Beijing 100084 Peoples R China univ Sci & Technol China Hefei 230026 Peoples R China Sichuan univ Inst Nucl Sci & Technol Key Lab Radiat Phys & Technol Minist Educ Chengdu 610064 Peoples R China Lanzhou univ Sch Nucl Sci & Technol Lanzhou 730000 Peoples R China North China univ Water Resources & Elect Power Zhengzhou 450000 Peoples R China
The cooling storage ring (CSR) external-target experiment (CEE) is a spectrometer used in construction to study the properties of nuclear matter in high-baryon density regions at the Heavy-Ion Research Facility in Lan... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Tropical Cyclones in Nicaragua: Historical Impact and Contemporary Exposure to Disaster Risk
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INTERNATIONAL JOURNAL OF DISASTER RISK SCIENCE 2024年 第4期15卷 579-593页
作者: Velasquez-Espinoza, Gema Alcantara-Ayala, Irasema Natl Autonomous univ Nicaragua Fac Sci & Engn Unan Managua 14172 Nicaragua Natl Autonomous univ Mexico UNAM Postgrad Programme Geog Mexico City Mexico Natl Autonomous univ Mex UNAM Inst Geog Mexico City 04510 Mexico
In tropical regions such as Nicaragua, the population's vulnerability to hazards has escalated in recent decades. This increase in vulnerability has led to a surge in disasters, particularly those triggered by intense... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
COVID-19 and regional resilience: Trends, priorities, and the geography of research
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JOURNAL OF SAFETY SCIENCE AND RESILIENCE 2024年 第3期5卷 295-305页
作者: Turgel, Irina D. Chernova, Olga A. Ural Fed univ Mira St 19 Ekaterinburg 620002 Russia Southern Fed univ Maxim Gorky St 88 Rostov Na Donu 344002 Russia
The global economic crisis of 2008-2013 led to the emergence of the concept of resilience, which focuses on the ability of socio-economic system store cover socially, economically, and environmentally after external i... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论