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Photonics Research Feature Announcement Non-Hermitian Photonics in Complex Media: PT-symmetry and beyond
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作者 Greg Gbur 《Photonics Research》 SCIE EI 2017年第2期52-,共1页
Submission Open:15 March 2017 Submission Deadline:15 April 2017 The idea of parity-time(PT)symmetry,first introduced in quantum mechanics,was recently realized in the context of photonics in the form of balanced gain-... Submission Open:15 March 2017 Submission Deadline:15 April 2017 The idea of parity-time(PT)symmetry,first introduced in quantum mechanics,was recently realized in the context of photonics in the form of balanced gain-loss structures with special symmetries.In recent years。 展开更多
关键词 PT-symmetry and beyond Photonics research Feature Announcement Non-Hermitian Photonics in Complex Media
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RESEARCH OF COMPLEX AND BIOACTIVE TERPENOIDS FROM MEDICINAL PLANTS OF MELIACEAE FAMILY
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作者 L.Y.Kong 《World Journal of Traditional Chinese Medicine》 2015年第4期70-70,共1页
In China,many plants of Meliaceae,distributed mainly in Southern China,were well-known Chinese folk medicines using to treat dysentery and fever.Recently,plants from Meliaceae were the research focus of natural produc... In China,many plants of Meliaceae,distributed mainly in Southern China,were well-known Chinese folk medicines using to treat dysentery and fever.Recently,plants from Meliaceae were the research focus of natural products because of their diverse structures and interesting biological properties.In order to discover novel and bioactive natural products from Chinese folk medicinal plants,we have investigated the chemical constituents and bioactivity 展开更多
关键词 research OF COMPLEX AND BIOACTIVE TERPENOIDS FROM MEDICINAL PLANTS OF MELIACEAE FAMILY
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A Practical Qualitative+Quantitative Method─S-ANN
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作者 GUAN Wei, SHEN Jin-sheng, LI Peng-fei Institute of Systems Engineering, Northern Jiaotong University, Beijing 100044, China 《Systems Science and Systems Engineering》 CSCD 2002年第1期19-27,共9页
In this paper, a practical qualitative+quantitative method named S-ANN is proposed as a forecasting tool, in which the artificial neural network (ANN) of AI is used to handle the quantitative knowledge and the SCENARI... In this paper, a practical qualitative+quantitative method named S-ANN is proposed as a forecasting tool, in which the artificial neural network (ANN) of AI is used to handle the quantitative knowledge and the SCENARIO method of systems engineering is used to handle the qualitative knowledge respectively. As a case study, S-ANN method is employed to forecast the ridership of Beijing public transportation, the results show that S-ANN method possesses advantages of feasibility and easily to operate. 展开更多
关键词 SCENARIO method artificial neural network complexity research
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Development and Application of Hydrogen Storage 被引量:4
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作者 Yang-huan ZHANG Zhi-chao JIA +3 位作者 Ze-ming YUAN Tai YANG Yan QI Dong-liang ZHAO 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2015年第9期757-770,共14页
Hydrogen,as a secure,clean,efficient,and available energy source,will be successfully applied to reduce and eliminate greenhouse gas emissions.Hydrogen storage technology,which is one of the key challenges in developi... Hydrogen,as a secure,clean,efficient,and available energy source,will be successfully applied to reduce and eliminate greenhouse gas emissions.Hydrogen storage technology,which is one of the key challenges in developing hydrogen economy,will be solved through the unremitting efforts of scientists.The progress on hydrogen storage technology research and recent developments in hydrogen storage materials is reported.Commonly used storage methods,such as high-pressure gas or liquid,cannot satisfy future storage requirement.Hence,relatively advanced storage methods,such as the use of metal-organic framework hydrides and carbon materials,are being developed as promising alternatives.Combining chemical and physical hydrogen storage in certain materials has potential advantages among all storage methods.Intensive research has been conducted on metal hydrides to improve their electrochemical and gaseous hydrogen storage properties,including their hydrogen storage capacity,kinetics,cycle stability,pressure,and thermal response,which are dependent on the composition and structural feature of alloys.Efforts have been exerted on a group of magnesium-based hydrides,as promising candidates for competitive hydrogen storage,to decrease their desorption temperature and enhance their kinetics and cycle life.Further research is necessary to achieve the goal of practical application by adding an appropriate catalyst and through rapid quenching or ball milling.Improving the kinetics and cycle life of complex hydrides is also an important aspect for potential applications of hydrogen energy. 展开更多
关键词 hydrogen storage hydrogen energy metal hydride complex hydride research progress
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