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Some important aspects of wind-resistant studies on long-span bridges

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Science China(Technological Sciences) 2012年第12期55卷 3334-3343页

作者： gu Ming State Key Laboratory of Disaster Reduction in Civil Engineering Tongji UniversityShanghai 200092China

In recent years many long-span bridges have been or are being constructed in the world, especially in China. Wind loads and responses are the key factors for their structural design. This paper introduces some important achievements of wind-resistant studies of the author's research team on long-span bridges. First, new concepts and identification methods of aerodynamic derivatives and aerodynamic admittances were proposed. Then mechanical and aerodynamic control strategies and methods of wind-induced vibrations of long-span bridges were the great concerned problems, and valuable achievements were presented. Especially, great efforts which have been theoretically and experimentally made on rain-wind induced vibration of cables of cable-stayed bridges were described. Finally, some new progresses in computation wind engineering were introduced, and a new method for simulating an equilibrium boundary layer was put forward as well.

关键词： long-span bridge aerodynamic derivative and admittance flutter and buffeting control rain-wind induced vibration ofstay cable computation wind engineering equilibrium boundary layer

Latest research progress for LBE coolant reactor of China initiative accelerator driven system project

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Frontiers in Energy 2021年第4期15卷 810-831页

作者： Long gu Xingkang SU Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China

China’s accelerator driven subcritical system(ADS)development has made significant progress during the past *** the successful construction and operation of the international prototype of ADS superconducting proton linac,the lead-based critical/subcritical zero-power facility VENUS-II and the comprehensive thermal-hydraulic and material test facilities for LBE(lead bismuth eutectic)coolant,China is playing a pivotal role in advanced steady-state operations toward the next step,the ADS *** China initiative Accelerator Driven System(CiADS)is the next facility for China’s ADS program,aimed to bridge the gaps between the ADS experiment and the LBE cooled subcritical *** total power of the CiADS will reach 10 *** CiADS engineering design was approved by Chinese government in *** then,the CiADS project has been fully transferred to the construction application *** subcritical reactor is an important part of the whole CiADS ***,a pool-type LBE cooled fast reactor is chosen as the subcritical reactor of the *** and thermal experiments and software development for LBE coolant were conducted simultaneously to support the design and construction of the CiADS LBEcooled subcritical ***,it is necessary to introduce the efforts made in China in the LBE-cooled fast reactor to provide certain supporting data and reference solutions for further design and development for ***,the roadmap of China’s ADS,the development process of the CiADS,the important design of the current CiADS subcritical reactor,and the efforts to build the LBE-cooled fast reactor are presented.

关键词： LBE(lead bismuth eutectic)coolant reactor China initiative Accelerator Driven System(CiADS)project research progress

Systems Engineering in China

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Journal of Systems Engineering and Electronics 1993年第2期4卷 13-18页

作者： Jifa, gu Academia Sinica Beijing China

A short history of systems engineering (SE) is described. The reasons why research work moves from operations research (OR), management science (MS) and cybernetics to SE in China are given. This paper indicates some ... 详细信息

关键词： Cybernetics Management Operations research Systems science

Unveiling new anti-inflammatory mechanisms of nanomaterials

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National Science Review 2023年第12期10卷 40-42页

作者： Zhen gu Liangzhu Laboratory College of Pharmaceutical Sciences National Key Laboratory of Advanced Drug Delivery and Release Systems Zhejiang University MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Jinhua Institute of Zhejiang University Department of General Surgery Sir Run Run Shaw Hospital School of Medicine Zhejiang University

Inflammasome activation is instrumental in clearance of pathogens and damaged cells, playing a pivotal role in maintaining host homeostasis. Nonetheless, it is important to note that inflammasome activation can also be a primary driving factor in autoimmune disease and metabolic dysregulation, encompassing conditions such as Alzheimer’s disease, colitis, type 2 diabetes, gout, and atherosclerosis [1].

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Extended Decision Model for Energy System

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Journal of Systems Engineering and Electronics 1993年第2期4卷 19-27页

作者： Peiliang, gu Tianjin Univ Tianjin China

In the past, decision model for energy system only provides usable tools to support decision making. It didn't probe the way to improve decision making process. The extended decision model for energy system, proposed in this paper, couples energy planning & evaluating system and energy expert system. It can play a part of an adviser and assistant in the decision making process of energy department.

关键词： Energy management Systems engineering

A general methodology to measure the light-to-heat conversion efficiency of solid materials

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Light(Science & Applications) 2023年第6期12卷 1051-1060页

作者： Kai gu Haizheng Zhong Beijing Key Laboratory of Nanophotonics&Ultrafine Optoelectronic Systems School of Materials Sciences&EngineeringBeijing Institute of Technology100081 BeijingChina

Light-to-heat conversion has been intensively investigated due to the potential applications including photothermal therapy and solar energy *** a fundamental property of materials,accurate measurement of light-to-heat conversion efficiency(LHCE)is of vital importance in developing advanced materials for photothermal ***,we report a photothermal and electrothermal equivalence(PEE)method to measure the LHCE of solid materials by simulating the laser heating process with electric heating *** temperature evolution of samples during electric heating process was firstly measured,enabling us to derive the heat dissipation coefficient by performing a linear fitting at thermal *** LHCE of samples can be calculated under laser heating with the consideration of heat dissipation *** further discussed the effectiveness of assumptions by combining the theoretical analysis and experimental measurements,supporting the obtained small error within 5%and excellent *** method is versatile to measure the LHCE of inorganic nanocrystals,carbon-based materials and organic materials,indicating the applicability of a variety of materials.

关键词： solid versatile supporting

Progress and perspectives of neural tissue engineering

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Frontiers of Medicine 2015年第4期9卷 401-411页

作者： Xiaosong gu Jiangsu Key Laboratory of Neuroregeneration Co-innovation Center of Neuroregeneration Nantong University Nantong 226001 China

Traumatic injuries to the nervous system lead to a common clinical problem with a quite high incidence and affect the patient＇s quality of life. Based on a major challenge not yet addressed by current therapeutic interventions for these diseases, a novel promising field of neural tissue engineering has emerged, grown, and attracted increasing interest. This review provides a brief summary of the recent progress in the field, especially in combination with the research experience of the author＇s group. Several important aspects related to tissue engineered nerves, including the theory on their construction, translation into the clinic, improvements in fabrication technologies, and the formation of a regenerative environment, are delineated and discussed. Furthermore, potential research directions for the future development of neural tissue engineering are suggested.

关键词： nerve injury tissue engineering nerve gratFTs

Exact Vacuum Solutions to the Einstein Equation

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Chinese Annals of Mathematics,Series B 2007年第5期28卷 499-506页

作者： Yingqiu gu School of Mathematical Sciences Fudan University Shanghai 200433 China.

In this paper, the author presents a framework for getting a series of exact vacuum solutions to the Einstein equation. This procedure of resolution is based on a canonical form of the metric. According to this procedure, the Einstein equation can be reduced to some 2-dimensional Laplace-like equations or rotation and divergence equations, which are much convenient for the resolution.

关键词： Einstein equation Exact vacuum solution Canonical metric Black hole

Prospect Theory and the Newsvendor Problem with Mental Accounting

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Journal of Systems Science and Systems Engineering 2020年第5期29卷 525-536页

作者： Bojun gu Xiang Zhang School of Economics and Management Zhejiang Ocean UniversityZhoushan 316022China School of Management and Economics Beijing Institute of TechnologyBeijing 100081China Sustainable Development Research Institute for Economy and Society of Beijing Beijing 100081China

The manner in which economic outcomes are coded in a value function is critical because it has substantial influence on the evaluation of risky *** this paper,we formulate multiple mental accounts in a nonlinear value function and propose a newsvendor problem with mental accounting to predict and explain pull-to-center *** show that the distinctive predictions of the proposed model come from the value function with mental *** identify the individual and combined effects of loss aversion,risk aversion,and risk seeking on shaping newsvendor ordering *** work demonstrates that prospect theory can explain the decision bias and ordering behavior observed in newsvendor *** also provide some additional insights to explain the studies in the literature.

关键词： Prospect theory mental accounting newsvendor problem decision bias pull-to-center phenomenon