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The debut of all-boron fullerene

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National Science Review 2015年第1期2卷 2-3页

作者： su-yuan Xie College of Chemistry and Chemical Engineering Xiamen University

Boron is the ith element and next to carbon in the periodic table of the elements,but boron has been researched less than its neighbor *** sourced from a natural boronrich mine in Yamdrok Lake,Tibet,China,has been use... 详细信息

关键词： cage The debut of all-boron fullerene

Driving potential and fission-fragment charge distributions

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Communications in Theoretical Physics 2022年第9期74卷 92-97页

作者： yuan su Min Liu Ning Wang Department of Physics Guangxi Normal UniversityGuilin 541004China Guangxi Key Laboratory of Nuclear Physics and Technology Guilin 541004China

We propose an efficient approach to describe the fission-fragment charge yields for actinides based on the driving potential of the fissioning *** the properties of primary fission fragments at their ground states,the driving potential,which represents the potential energies of the system around scission configuration and closely relates to the yields of fragments,can be unambiguously and quickly obtained from the Skyrme energy-density functional together with the Weizs?cker-Skyrme mass *** fission-fragment charge distributions for thermal-neutron-induced fission and spontaneous fission of a series of actinides,especially the odd-even staggering in the charge distributions,can be well *** dynamical deformations and pairing corrections of fragments play an important role in the charge distributions.

关键词： nuclear fission fragment charge distribution driving potential nuclear deformation energy density functional

Cyclodextrin-functionalized Ordered Porous Block Copolymer Films: Preparation and Property

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Chinese Journal of Polymer Science 2018年第1期36卷 34-42页

作者： Jing Dang yuan-Wei su Wei Tian Ministry of Education Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions and Shaanxi Key Laboratory of Macromolecular Science and Technology School of Science Northwestern Polytechnical University

Ordered porous block copolymer films（PBCFs） have attracted much attention because of their potential applications in several fields. In this paper, we first reported a non-destructive, controllable, and efficient approach for preparation of β-cyclodextrin（β-CD）-functionalized PBCFs（β-CD-PBCFs）. The key point of the approach is to incorporate β-CD units into the hydrophilic segment of amphiphilic block copolymers before the preparation of films. β-CD-PBCFs with structural integrity and controllable pore parameters were fabricated through combining of self-assembly and breath figure methods. And then, the effective adsorption capacity of β-CD-PBCFs toward Congo red was confirmed through UV-Vis spectroscopy and was found to be affected by β-CD content and solution p H values. Adsorption kinetic results showed that the adsorption behavior of β-CD-PBCFs was consistent with the pseudo-second-order kinetic model and the chemisorption mechanism.

关键词： Porous block copolymer film β-Cyclodextrin Breath figure Self-assembly

Microstructural evolution,tensile property and dynamic compressive property of FSWed Ti-6Al-4V alloy

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Rare Metals 2020年第2期39卷 169-175页

作者： Jia-Wei Bao su-yuan Yang Ting Yang School of Materials Science and Engineering Beijing Institute of TechnologyBeijing100081China

Friction stir welding was applied to Ti-6 A1-4 V plates with 5 mm in *** microstructure and mechanical properties were investigated.A full lamellar microstructure was developed near the top surface,and the size of priorβgrain gradually decreases as the distance from the top surface *** microstructure of the bottom is fine equiaxed a grains,and the mean size is2μm.A mixture microstructure consisting of primary a,lamellarα+βand fine equiaxedαis discovered in thermomechanically affected zone(TMAZ).Results of transverse tensile test show that the tensile strength of the joint reaches 98%that of the base material(BM).Quasi-static compression test shows that the joint exhibits larger compressive strength and failure strain than the *** compressive strength of the joint is close to that of the BM;furthermore,the strain at the peak stress and energy absorption of the joint are larger than those of the BM.

关键词： Friction stir welding Ti-6Al-4V Microstructure Tensile property Dynamic compressive property

Determination of vinyl orientation of mouse neuroglobin by 2D nuclear Overhauser spectroscopy

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Chinese Chemical Letters 2007年第3期18卷 319-321页

作者： su yuan Zhou Xiao Yan Wei Department of Biomechanlcs Shanghai University of Sports Shanghai 200438 China

^1H NMR has been used to determine the 2-, 4-vinyl orientation of heme active site from oxidized mouse neuroglobin （mNgb）. The NOEs between 3-methyl and Hα, Hβ of 2-vinyl, together with the NOEs between 5-methyl and Hα, Hβ of 4-vinyl, allowed the unambiguous determination of trans and cis orientations for the 2- and 4-vinyl groups in the mNgb, respectively.

关键词： Heme Vinyl orientation Neuroglobin

A 3D MIL-101@rGO composite as catalyst for efficient conversion of straw cellulose into valuable organic acid

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Chinese Chemical Letters 2022年第5期33卷 2573-2578页

作者： yuan su Mengchu Lu Ruidian su Weizhi Zhou Xing Xu Qian Li School of Mathematic and Quantitative Economics Shandong University of Finance and EconomicsJi’nan 250014China Shandong Key Laboratory of Water Pollution Control and Resource Reuse School of Environmental Science and EngineeringShandong UniversityQingdao 266200China School of Civil Engineering Shandong UniversityJi’nan 250100China

Efficient conversion of straw cellulose to chemicals or fuels is an attracting topic today for the utiliza-tion of biomass to substitute for fossil *** development of catalysts is of vital *** this work,a composite catalyst metal-organic frameworks(MOFs)immobilized on three-dimensional reduced graphene oxide(3D-rGO)were synthesized by in situ growth of the MIL-101(Cr)within the 3D-rGO *** supporting of 3D-rGO guaranteed the dispersion and acid site density of MIL-101(Cr).The MIL-101(Cr)@3D-rGO nanocomposite possesses excellent catalytic activity,stability,recyclability and is an idea catalyst for the efficient degradation of straw cellulose into formic acid(FA),acetic acid(AA)and oxalic acid(OA).A maximum FA conversion rates of 95.36%was obtained by using MIL-101(Cr)@3D-rGO(1:1)as catalyst and hydrothermal reaction at mild conditions of 200°C for 1h in alkaline aqueous *** MIL-101(Cr)@3D-rGO nanocomposite can be reused with high catalytic activity without any collapse of structure or leaching of chromium.

关键词： Straw cellulose MIL-101(Cr) Three-dimensional graphene Catalystic conversion Organic acid

Patients with cirrhosis during the COVID-19 pandemic:Current evidence and future perspectives

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World Journal of Clinical Cases 2021年第13期9卷 2951-2968页

作者： Hung-yuan su Yin-Chou Hsu Department of Emergency Medicine E-DA HospitalI-Shou UniversityKaohsiung 82445Taiwan China School of Chinese Medicine for Post Baccalaureate I-Shou UniversityKaohsiung 82445Taiwan China

The outbreak of coronavirus disease-2019(COVID-19)has resulted in a global public health *** with cirrhosis were deemed more susceptible to viral infection because of their dysregulated immune *** to the general population,cirrhotic patients exhibit various degrees of COVID-19-related liver injury,which could be attributed to direct virus cytotoxicity,systemic immune system activation,drug-related liver injury,reactivation of pre-existing liver disease,and hypoxic *** clinical symptoms in patients with cirrhosis and COVID-19 were similar to those in the general population with COVID-19,with a lower proportion of patients with gastrointestinal *** respiratory failure is the predominant cause of mortality in cirrhotic patients with COVID-19,a significant proportion of them lack initial respiratory *** evidence has shown that cirrhotic patients have relatively higher rates of morbidity and mortality associated with *** cirrhosis was also proposed as an independent factor affecting a poor prognosis and the need to consider COVID-19 palliative *** measures implemented to prevent the transmission of the virus are also essential for cirrhotic patients,and they should also receive standard cirrhosis care with minimal *** efficacy of the available COVID-19 vaccines in cirrhotic patients still needs investigation.

关键词： COVID-19 SARS-CoV-2 Cirrhosis Acute liver injury Prognosis Therapy

Dilemmas and Obstacles： Multilateral Energy Cooperation Among BRICS Countries

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Fudan Journal of the Humanities and Social Sciences 2014年第3期7卷 395-410页

作者： su-yuan sun A407 Science Building 3663 North Zhongshan Road Shanghai 200062People's Republic of China

Multilateral energy cooperation among BRICS countries remains largely at the stage of initiatives with few substantial actions that have been taken so far. Three main reasons can account for it. One is a contending concern of energy security that constrains energy cooperation between energy producing countries and energy consuming countries. The second is energy diplomacy with self-help logic as the main principle, which discourages BRICS countries from taking collective actions to secure their energy security. The third one is the international energy system that conditions BRICS countries to participate in the international energy cooperation. As a result, multilateral energy cooperation is of secondary importance in the agenda of BRICS countries, and the degree of their involvement in global energy cooperation is relatively low.

关键词： BRICS Multilateral energy cooperation Energy security Energy diplomacy

Understanding information interactions in diffusion： an evolutionary game-theoretic perspective

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Frontiers of Computer Science 2016年第3期10卷 518-531页

作者： yuan su Xi ZHANG Lixin LIU Shouyou SONG Binxing FANG Key Laboratory of Trustworthy Distributed Computing and Service Ministry of EducationSchool of Computer Science Beijing University of Posts and Telecommunications Beijing 100876 China

Social networks are fundamental media for dif- fusion of information and contagions appear at some node of the network and get propagated over the edges. Prior re- searches mainly focus on each contagion spreading indepen- dently, regardless of multiple contagions＇ interactions as they propagate at the same time. In the real world, simultaneous news and events usually have to compete for user＇s attention to get propagated. In some other cases, they can cooperate with each other and achieve more influences. In this paper, an evolutionary game theoretic framework is proposed to model the interactions among multiple con- tagions. The basic idea is that different contagions in social networks are similar to the multiple organisms in a popula- tion, and the diffusion process is as organisms interact and then evolve from one state to another. This framework statis- tically learns the payoffs as contagions interacting with each other and builds the payoff matrix. Since learning payoffs for all pairs of contagions IS almost impossible （quadratic in the number of contagions）, a contagion clustering method is proposed in order to decrease the number of parameters to fit, which makes our approach efficient and scalable. To ver- ify the proposed framework, we conduct experiments by us- ing real-world information spreading dataset of Digg. Exper- imental results show that the proposed game theoretic frame- work helps to comprehend the information diffusion process better and can predict users＇ forwarding behaviors with more accuracy than the previous studies. The analyses of evolution dynamics of contagions and evolutionarily stable strategy re- veal whether a contagion can be promoted or suppressed by others in the diffusion process.

关键词： social networks information diffusion gametheory evolutionary game evolution dynamics