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您的检索式：作者名="ZHAI Runping"
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| 1 | Application and Development of Systems Engineering in Road Traffic Management显示文摘Traffic management is an important contribution in the sustainable development of urban traffic.The complexity of traffic problems determines the difficulty of traffic management.Therefore,traffic management needs the guidance of scientific theories.This paper explores traffic management systems engineering for management road traffic.First,the paper looks at the contents of road traffic management from a systems perspective.Second,the paper briefly describes systems engineering,and explains the necessity and feasibility of the combination of the traffic management and systems engineering.At last,the paper puts forward the concept of traffic management systems engineering using a systems framework. | LIU Guangping ZHAI Runping | 2018 | Journal of Traffic and Transportation Engineering2018，6，5： | 0 |
| 2 | Luminescence modulation of ultrasmall gold clusters by aromatic ligands显示文摘Luminescence is one of the most important properties for metal nanoclusters;however,clearly revealing its origin remains challenging.The different luminescence properties of the two prototypical 8e nanoclusters Au_(11)and Au_(13)remain elusive—Au_(11)is always nonluminescent,whereas Au_(13)is luminescent.In this work,by using a designed unique aromatic ligand(quinoline-2-thiol),we obtained new atomically precise phosphine-thiolate-protected neutral Au_(11)-SH and cationic Au_(13)-SH.In comparison with the classic phosphine-halide-protected Au_(11)-Cl and Au_(13)-Cl,the Cl-to-thiol alteration triggered room-temperature luminescence of the Au_(11)core and dramatically modulated that of the Au_(13)core.Ultrafast ultraviolet/infrared(UV/IR)spectroscopy,which is sensitive to organic aromatic groups,together with ultrafast transient absorption(TA)spectroscopy unprecedently revealed a relaxation process from the ligand to core state affecting the dynamics in excited states and some critical intermediate states favouring efficient room-temperature emission of these nanoclusters.This work provides some new insights into the origin of photoluminescence of metal nanoclusters and opens an avenue to modulate the dynamics of their excited states using aromatic ligands,which would have direct applications in lighting,light harvesting,and photocatalysis. | Xue-Jing Zhai Jia-Hua Hu Jianxin Guan Yubing Si Xi-Yan Dong Peng Luo Fangfang Pan Zhihao Yu Runping Han Shuang-Quan Zang | 2023 | Nano Research2023，16，8： | 0 |
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