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The Channel Behavior of Gramicidin D in the Self-assembled Monolayer

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Chinese Chemical Letters 1999年第2期10卷 165-166页

作者： Ji Dong GUO Li Xiang WANG gong quan sun Tian Hong LU Hut YANG(Changqhun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022)(Department of Chemistry, Naming Normal University, Naming, 210097) Changchun Inst. of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China Department of Chemistry Nanjing Normal University Nanjing 210097 China

It was found for the first time that gramicidin D (GD) molecules can be incorporated into the ODM monolayer which is self-assembled on the surface of the gold electrode and form monovalent cation channels.

关键词： gramicidin self-assembled monolayer channel behavior

Pt_(x)Cu_(y)/C电催化剂甲醇氧化反应性能及机理研究

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电化学 2021年第5期27卷 508-517页

作者：唐佳张晓明于陕升王素力孙公权中国科学院大连化学物理研究所辽宁大连116023 中国科学院大学北京100049 吉林大学材料科学与工程学院吉林长春130012

直接甲醇燃料电池(DMFC)是一种将甲醇燃料的化学能直接转化为电能的能量转换装置,具有能量转化效率高、环境友好、燃料来源丰富等优势,在移动电源等领域具有广泛应用前景,但阳极铂基电催化剂的性能及成本制约着DMFC的发展。本论文通过... 详细信息

直接甲醇燃料电池(DMFC)是一种将甲醇燃料的化学能直接转化为电能的能量转换装置,具有能量转化效率高、环境友好、燃料来源丰富等优势,在移动电源等领域具有广泛应用前景,但阳极铂基电催化剂的性能及成本制约着DMFC的发展。本论文通过简单的液相浸渍还原法,制备了系列PtCu/C纳米电催化剂,电化学性能测试结果表明,电催化剂对甲醇氧化反应(MOR)活性顺序为商品Pt/C

关键词： Pt_(x)Cu_(y)/C电催化剂甲醇氧化反应 CuO相

Molecule‑Level Multiscale Design of Nonflammable Gel Polymer Electrolyte to Build Stable SEI/CEI for Lithium Metal Battery

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Nano-Micro Letters 2025年第1期17卷 404-423页

作者： Qiqi sun Zelong gong Tao Zhang Jiafeng Li Xianli Zhu Ruixiao Zhu Lingxu Wang Leyuan Ma Xuehui Li Miaofa Yuan Zhiwei Zhang Luyuan Zhang Zhao Qian Longwei Yin Rajeev Ahuja Chengxiang Wang Key Laboratory for Liquid‑Solid Structural Evolution and Processing of Materials(Ministry of Education) School of Materials Science and EngineeringShandong UniversityJinan 250061People’s Republic of China Condensed Matter Theory Department of Physics and AstronomyUppsala UniversityUppsala 75120Sweden

The risk of flammability is an unavoidable issue for gel polymer electrolytes(GPEs).Usually,flameretardant solvents are necessary to be used,but most of them would react with anode/cathode easily and cause serious interfacial instability,which is a big challenge for design and application of nonflammable ***,a nonflammable GPE(SGPE)is developed by in situ polymerizing trifluoroethyl methacrylate(TFMA)monomers with flame-retardant triethyl phosphate(TEP)solvents and LiTFSI–LiDFOB dual lithium *** is strongly anchored to PTFMA matrix via polarity interaction between-P=O and-CH_(2)CF_(3).It reduces free TEP molecules,which obviously mitigates interfacial reactions,and enhances flame-retardant performance of TEP *** TEP molecules are also inhibited in solvation of Li^(+),leading to anion-dominated solvation sheath,which creates inorganic-rich solid electrolyte interface/cathode electrolyte interface *** coordination structure changes Li^(+)transport from sluggish vehicular to fast structural transport,raising ionic conductivity to 1.03 mS cm^(-1) and transfer number to 0.41 at 30℃.The Li|SGPE|Li cell presents highly reversible Li stripping/plating performance for over 1000 h at 0.1 mA cm^(−2),and 4.2 V LiCoO_(2)|SGPE|Li battery delivers high average specific capacity>120 mAh g^(−1) over 200 *** study paves a new way to make nonflammable GPE that is compatible with Li metal anode.

关键词： Anchoring effect Nonflammable gel electrolyte In situ cross-linked Electrode-electrolyte interface Li metal battery

Construction of Power Trading Supply Guarantee System of High Proportion of Hydropower in the Southwest Power Grid Under Extreme Climate Scenarios

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Dianwang Jishu/Power System Technology 2025年第1期49卷 113-123页

作者： Wen, Xu Zhou, quan sun, Tian Yang, Yang Mao, Rui Wen, Siao Southwest Branch of State Grid Corporation of China Sichuan Province Chengdu 610041 China Beijing Power Trading Center Co. Ltd. Xicheng District Beijing 100031 China

Currently, the Southwest Power Grid is promoting the construction of a new power system. The southwest power grid has a large-scale integration of clean energy, mainly hydropower, which depends on the weather. The system operation is facing serious challenges due to the lack of reliable power supply and the frequent occurrence of extreme climate. Firstly, this paper introduces China's Southwest Power Grid and market operation pattern. Secondly, learning from the power supply issues in the Sichuan-Chongqing region of the Southwest Power Grid under the extreme drought, and high-temperature climate scenarios in the summer of 2022, and based on the perspectives of the regional power grid and the marketization, the paper summarizes the four shortcomings of current power supply scheme of Southwest Power Grid, namely limited warning levels, short supply cycle, limited supply space, and a single supply resource. Therefore, research methods and framework for the power supply of Southwest Power Grid are proposed based on the concept of "double-level, full-lifecycle, full-space, and full-resources" ("one-double three-full"). Thirdly, the power trading system for supply sufficiency in Southwest Power Grid under extreme climate scenarios is constructed: 1) proposing the concept and level determination method of power supply warning and response for regional power grids, and constructing a double-level power trading supply warning and response mechanism for "provincial power grid + regional power grid";2) proposing medium and long term interruptible power supply varieties and constructing a "medium and long term + spot + emergency" full-lifecycle power trading supply guarantee system;3) proposing the concept of inter-regional and intra-provincial market power supply, designing spatiotemporal exchange transactions of large-scale hydropower and constructing a "inter-regional + inter-provincial + intra-provincial" full-space power trading system for supply sufficiency;4) proposing p

关键词： Commerce

Study on the performance of the A*Prune QoS routing algorithm for intelligent optical networks and its improvements

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The Journal of China Universities of Posts and Telecommunications 2006年第3期13卷 65-70页

作者： sun quan WANG gong-pu School of Telecommunication Engineering Beijing University of Posts and Telecommunications Beijing 100876 China School of Network Education Beijing University of Pos'ts and TelecommunicationsBeijing 100088 China

The A＇Prune quality of service （QoS） routing algorithm was proposed to compute K-shortest paths satisfying multiple QoS constraints, The A＇Prune is considered to be one of the practical routing algorithms for intelligent optical networks because of its flexibility in handling many practical constraints, This article gives detailed performance studies of the algorithm through extensive simulation experiments. We found that both the running time and the memory space requirements of the algorithm are large, especially when the network size increases, in this article, we also propose an approach to improving the performance of the A＇Prune algorithm. The improvements should make the A＇Prune algorithm more attractive for practical use in intelligent optical networks.

关键词： constrained paths K-shortest paths QoS routing,intelligent optical networks

THEORETICAL AND EXPERIMENTAL INVESTIGATIONS OF ENTRAINED AND TRANSPORTED CHARACTERISTICS OF SUBMERGED JET

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Journal of Hydrodynamics 2004年第2期16卷 176-181页

作者： DONGZhi-yong WUChi-gong YANGYong-quan SchoolofCivilandArchitecturalEngineering ZhejiangUniversityofTechnologyHangzhou310014Chinae-mail：dongzy@mail*** StateKeyHydraulicsLaboratoryofHighSpeedFlows SichuanUniversityChengdu610065China

This paper presents entrainment mechanism, and transported and diffusioncharacteristics at the point of entry of submerged jet. The profiles of both velocity andconcentration within the air-water mixing layer were theoretically deduced. And the comparisonsbetween theoretical values and measured data were made. Results show that the velocity profilewithin the air-water mixing layer exhibits a form of error function. The concentrations of airentrainment in the internal and external regions of air-water mixing layer correspond to Gaussiandistribution.

关键词： submerged jet air entrainment diffusion air-water mixing layer point ofjet entry

Consistency check of degradation mechanism between natural storage and enhancement test for missile servo system

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Journal of Systems Engineering and Electronics 2019年第2期30卷 415-424页

作者： Wang Xu sun quan College of Information Systems and Management National University of Defense Technology The Second Academy of China Aerospace Science and Industry Corporation Hunan Ginkgo Reliability Technology Institute Limited Corporation

Reliability enhancement testing(RET) is an accelerated testing which hastens the performance degradation process to surface its inherent defects of design and manufacture. It is an important hypothesis that the degradation mechanism of the RET is the same as the one of the normal stress condition. In order to check the consistency of two mechanisms, we conduct two enhancement tests with a missile servo system as an object of the study, and preprocess two sets of test data to establish the accelerated degradation models regarding the temperature change rate that is assumed to be the main applied stress of the servo system during the natural storage. Based on the accelerated degradation models and natural storage profile of the servo system, we provide and demonstrate a procedure to check the consistency of two mechanisms by checking the correlation and difference of two sets of degradation data. The results indicate that the two degradation mechanisms are significantly consistent with each other.

关键词： reliability enhancement testing (RET) degradation model accelerated equation consistency check Pearson correlation coefficient

Aerobic granular sludge formation based on substrate availability:Effects of flow pattern and fermentation pretreatment

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Frontiers of Environmental Science & Engineering 2020年第3期14卷 155-164页

作者： quan Yuan Hui gong Hao Xi Kaijun Wang State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China

The influences of flow patterns(mixed-flow and plug-flow)and fermentation pretreatment on aerobic granular sludge(AGS)formation with various substrate availability levels were investigated by running four identical laboratory-scale sequencing batch reactors(R1-R4),comparing two anaerobic feeding strategies and three kinds of substrates.R1 achieved faster granulation with a fast influent fill step followed by a modified anaerobic mixed-flow phase,but the AGS showed poorer stability with a cracked structure and a high suspended solids concentration in the *** anaerobic plug-flow feeding mode(with influent fed slowly from the bottom)in R2 provided deeper penetration depth for the substance to reach the core of A G S and accordingly strengthen A G S *** acidogenic upflow sludge bed reactor was introduced as a pretreatment to improve the AGS performance by enhancing glucose pre-fermentation(R4).AGS fed with mixed volatile fatty acids(VFA)after glucose fermentation showed similar performance compared with the reactor fed with acetate in the aspects of stability,structure,size distribution and nitrogen removal efficiency,and 74%similarity in the microbial *** actual wastewater with low VFA concentrations,fermentation treatment was suggested as a promising pretreatment for stable AGS granulation and operation.

关键词： Anaerobic plug-flow feeding mode Anaerobic mixed-flow mode Fermentation pretreatment Substrate gradient Penetration depth

A SIMPLE METHOD FOR PREDICTION OF THE REDUCED SCATTERING COEFFICIENT IN TISSUE-SIMULATING PHANTOMS

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Journal of Innovative Optical Health Sciences 2010年第1期3卷 53-59页

作者： JIANWEI FU GUOTAO quan HUI gong Britton Chance Center for Biomedical Photonics Wuhan National Laboratory for Optoelectronics—Huazhong University of Science and Technology Wuhan 430074P.R.China

This paper proposes a method for predicting the reduced scattering coefficients of tissuesimulating phantoms or the desired amount of scatters for producing phantoms according to Mie scattering theory without measurements with other *** concentration of the scatters TiO2 particles is determined according to Mie theory calculation and added to transparent host epoxy resin to produce phantoms with different reduced scattering *** India Ink is added to alter the absorption coefficients of the *** reduced scattering coefficients of phantoms are measured with single integrating sphere *** results show that the measurements are in direct proportion to the concentration of TiO2 and have identical with Mie theory calculation at multiple *** method proposed can accurately determine the concentration of scatters in the phantoms to ensure the phantoms are qualified with desired reduced scattering coefficients at specified *** investigation should be possible to manufacture the phantom simply in reasonably accurate for evaluation of biomedical optical imaging systems.

关键词： Mie scattering theory integrating sphere optical imaging