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Nano-Micro Letters 2025年第2期17卷 376-386页

作者： wei-min Qin Zhongliang Li Wen‑Xia Su Jia‑min Hu Hanqin Zou Zhixuan Wu Zhiqin Ruan Yue‑Peng Cai Kang Li Qifeng Zheng School of Chemistry South China Normal UniversityGuangzhou 510006People’s Republic of China Key Laboratory of Functional Metal‑Organic Compounds of Hunan Province College of Chemistry and Material ScienceHengyang Normal UniversityHengyang 421008People’s Republic of China Guangzhou Key Laboratory of Energy Conversion and Energy Storage Materials Guangzhou 510006People’s Republic of China

Porous organic cages(POCs)with permanent porosity and excellent host–guest property hold great potentials in regulating ion transport behavior,yet their feasibility as solid-state electrolytes has never been testified in a practical ***,we design and fabricate a quasi-solid-state electrolyte(QSSE)based on a POC to enable the stable operation of Li-metal batteries(LMBs).Benefiting from the ordered channels and cavity-induced anion-trapping effect of POC,the resulting POC-based QSSE exhibits a high Li+transference number of 0.67 and a high ionic conductivity of 1.25×10^(−4) S cm^(−1) with a low activation energy of 0.17 *** allow for homogeneous Li deposition and highly reversible Li plating/stripping for over 2000 *** a proof of concept,the LMB assembled with POC-based QSSE demonstrates extremely stable cycling performance with 85%capacity retention after 1000 ***,our work demonstrates the practical applicability of POC as SSEs for LMBs and could be extended to other energy-storage systems,such as Na and K batteries.

关键词： Porous organic cage Cavity-induced anion-trapping Quasi-solid-state electrolyte Homogeneous Li+flux Lithium metal battery

Ultimate Lateral Capacity of Rigid Pile in c–φ Soil

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China Ocean Engineering 2018年第1期32卷 41-50页

作者： ZHANG wei-min Nanjing Hydraulic Research Institute Nanjing 210029China Key Laboratory of Water Scienceand Engineering Ministry of Water ResourcesNanjing 210029China National Energy Hydropower Engineering Safetyand Environmental Research and Development Center Nanjing 210029China

To date no analytical solution of the pile ultimate lateral capacity for the general c–φ soil has been obtained. In the present study, a new dimensionless embedded ratio was proposed and the analytical solutions of ultimate lateral capacity and rotation center of rigid pile in c–φ soils were obtained. The results showed that both the dimensionless ultimate lateral capacity and dimensionless rotation center were the univariate functions of the embedded ratio. Also,the ultimate lateral capacity in the c–φ soil was the combination of the ultimate lateral capacity（f;） in the clay, and the ultimate lateral capacity（f;） in the sand. Therefore, the Broms chart for clay, solution for clay（φ=0） put forward by Poulos and Davis, solution for sand（c=0） obtained by Petrasovits and Awad, and Kondner’s ultimate bending moment were all proven to be the special cases of the general solution in the present study. A comparison of the field and laboratory tests in 93 cases showed that the average ratios of the theoretical values to the experimental value ranged from 0.85 to 1.15. Also, the theoretical values displayed a good agreement with the test values.

关键词： pile ultimate lateral capacity dimensionless analytical solution c–φ soils hyperbolic function method

A Coupled Model Study on the Intensification of the Asian Summer Monsoon in IPCC SRES Scenarios

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Advances in Atmospheric Sciences 2005年第6期22卷 798-806页

作者： min wei Max-Planck-Institut fur Meteorologie Bundesstrasse 53 D-20146 Hamburg Germany

The Asian summer monsoon is an important part of the climate system. Investigating the response of the Asian summer monsoon to changing concentrations of greenhouse gases and aerosols will be meaningful to understand and predict climate variability and climate change not only in Asia but also globally. In order to diagnose the impacts of future anthropogenic emissions on monsoon climates, a coupled general circulation model of the atmosphere and the ocean has been used at the Max-Planck-Institute for Meteorology. In addition to carbon dioxide, the major well mixed greenhouse gases such as methane, nitrous oxide, several chlorofluorocarbons, and CFC substitute gases are prescribed as a function of time. The sulfur cycle is simulated interactively, and both the direct aerosol effect and the indirect cloud albedo effect are considered. Furthermore, changes in tropospheric ozone have been pre-calculated with a chemical transport model and prescribed as a function of time and space in the climate simulations. Concentrations of greenhouse gases and anthropogenic emissions of sulfur dioxide are prescribed according to observations （1860-1990） and projected into the future （1990-2100） according to the Scenarios A2 and B2 in Special Report on Emissions Scenarios （SRES, Nakcenovic et al., 2000） developed by the Intergovernmental Panel on Climate Change （IPCC）. It is found that the Indian summer monsoon is enhanced in the scenarios in terms of both mean precipitation and interannual variability. An increase in precipitation is simulated for northern China but a decrease for the southern part. Furthermore, the simulated future increase in monsoon variability seems to be linked to enhanced ENSO variability towards the end of the scenario integrations.

关键词： asian summer monsoon climate change IPCC SRES scenarios

Foam-structured Activated Carbon-ceramic as Ti02 Supports for Photocatalytic Degradation of Phenol

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Chemical Research in Chinese Universities 2013年第2期29卷 314-318页

作者： LIU wei-min School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 P. R. China

An activated foam-structured carbon-ceramic（AFCC） was prepared and investigated as TiO2 support for the photocatalytic degradation of phenol. AFCC and TiO2/AFCC catalysts were characterized by N2 adsorption- desorption and X-ray diffraction（XRD）. The effects of AFCC on the photocatalytic activity and the crystallinity of TiO2 were studied. The results show that the crystallinity and anatase/rutile ratio of TiO2 loaded on AFCC could be significantly influenced by the calcination temperature. The degradation rate of phenol benefited from the synergistic effects of the adsorption of activated carbon（AC） and the photocatalysis of TiO2, which suggests that a high surface area of AC is essential to achieve high degradation rates and efficiencies. It was found that the larger mean cell size of AFCC increased the lizht transmission within the foam.

关键词： Photocatalytic degradation TiO2 Activated foam-structured carbon-ceramic(AFCC) Phenol

Effects of Finish Rolling Temperature on Microstructure and Mechanical Properties of Ferritic-Rolled P-Added High Strength Interstitial-Free Steel Sheets

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Journal of Iron and Steel Research International 2011年第5期18卷 42-46页

作者： GUO wei-min Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials of ministry of Education Shandong UniversityJinan 250061ShandongChina School of Materials Science and Engineering Shandong UniversityJinan 250061ShandongChina

The steels were rolled at 3 different finishing temperatures. The mechanical properties were tested by tensile tests. The results show that as finish rolling temperature decreases from 620 to 560 ℃ in ferrite region,the deep drawability of ferritic-rolled P-added high strength IF steels is improved,and r value rises from 1.14 to 1.37. Finish rolling temperature （FT） has less influence on other mechanical properties,such as yield strength,tensile strength and elongation. Microstructures of hot rolled and annealed steel sheets and precipitates of annealed steel sheets were also analyzed.

关键词： ferrite high strength IF steel deep drawability r-value

Reconstruction of Smoke Plume Concentration Peaks Based on Modified MAX-DOAS Tomography

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Chinese Journal of Chemical Physics 2015年第6期28卷 -页

作者： min-hong wei min-ming Tong Su-wen Li School of Physics and Electronic Information Huaibei Normal University Huaibei 235000 ChinaSchool of Information and Electrical Engineering China University of Mining and Technology Xuzhou 221116 China School of Information and Electrical Engineering China University of Mining and Technology Xuzhou 221116 China School of Physics and Electronic Information Huaibei Normal University Huaibei 235000 China

Optical tomographysystem based on modified simultaneous iterative reconstruction technique is designed to real-time monitor spatial distribution and diffusion process of smoke plume in a power plant. Concentration profiles, rather than just a point value, of smoke plume concentrations are the goal of this method, and the tomography algorithm is analyzed. According to incomplete projection data in the process of reconstruction and exiting noise interference, the modified simultaneous iterative reconstruction technique (SIRT) is adopted to extract the information of the trace gas concentration by a fan beam scanning and is compared to the conventional SIRT. Three evaluation indexes show that the reconstruction effect is the best by choosing proper relaxation factor, which reduces the index d to 0.044 from 0.435 and reduces the index r to 0.044 from 0.376 for 5500 iterations. Hence, the modified algorithm performs better in estimating the shape of the plume, this method is used to process the measured spectra in field campaign, the reconstruction results and the measured data are basically consistent, which is further confirmed by the experimental results.

关键词： Reconstruction DOAS tomography Retrieval Modified simultaneous iterative reconstruction technique

Modular Total Synthesis of (-)-Palmyrolide A and (+)-(5S,7S)-Palmyrolide A via Ring-Closing Metathesis and Alkene Isomerization

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Chinese Journal of Chemistry 2021年第1期39卷 69-74页

作者： Yecai Lai wei-min Dai Laboratory of Advanced Catalysis and Synthesis Department of Chemistry and Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou)The Hong Kong University of Science and TechnologyClear Water BayKowloonHong Kong SARChina Baiyunshan Pharmaceutical General Factory Guang-zhou Baiyunshan Pharmaceutical Holdings Co.Ltd.Guangzhou 510515China

A pentamodule assembly approach has been established for total synthesis of the naturally occurring(-)-palmyrolide A and(+)-5,7-epi-palmyrolide *** using the racemic tert-butyl carbinol-containing alkyl iodide,the two diastereoisomeric macrolides could be obtained from the same sequence of reactions,demonstrating the flexibility of the multimodule assembly strategy for diverted total synthesis.

关键词： Alkene B-Alky Suzuki-Miyaura cross-coupling Modular total synthesis Cross coupling Ring-closing metathesis

LINEAR FINITE ELEMENT APPROXIMATIONS FOR THE TIMOSHENKO BEAM AND THE SHALLOW ARCH PROBLEMS

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Journal of Computational Mathematics 2002年第1期20卷 15-22页

作者： Xiao-liang Cheng wei-min Xue Department of Mathematics Zhejiang UniversityXixi CampusHangzhou 310028China Department of Mathematics Hong Kong Baptist UniversityKowloon TongHong Kong

Focuses on a study that discusses the linear finite element approximations for the Timoshenko beam and the shallow arch problems with shear dampening and reduced integration. Information on the Timoshenko beam; Detail... 详细信息

关键词： Timoshenko beam shallow arch shear dampening reduced integration

Molecular characterization of microbial communities in bioaerosols of a coal mine by 454 pyrosequencing and real-time PCR

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Journal of Environmental Sciences 2015年第4期27卷 241-251页

作者： min wei Zhisheng Yu Hongxun Zhang College of Resources and Environment University of Chinese Academy of Sciences

Microbial diversity and abundance in bioaerosols of a coal mine were analyzed based on 454 pyrosequencing and real-time polymerase chain reaction（PCR）. A total of 37,191 high quality sequences were obtained and could be classified into 531, 1730 and 448 operational taxonomic units respectively for archaea, bacteria and fungi at 97% sequence similarity. The Shannon diversity index for archaea, bacteria and fungi was respectively 4.71, 6.29 and 3.86, indicating a high diversity in coal mine bioaerosols. Crenarchaeota, Proteobacteria and Ascomycota were the dominant phyla for archaea, bacteria and fungi, respectively. The concentrations of total archaea, bacteria and fungi were 1.44 × 10^8, 1.02 × 10^8 and 9.60 × 10^4cells/m^3, *** observed in bioaerosols suggested possible methane oxidation in the coal mine. The identified potential pathogens to coal miners, such as Acinetobacter schindleri,Aeromonas cavernicola, Alternaria alternata, Aspergillus penicillioides, Cladosporium cladosporioides,and Penicillium brevicompactum were also observed. This was the first investigation of microbial diversity and abundance in coal mine bioaerosols. The investigation of microbial communities would be favorable in promoting the progress of methane control based on microbial technique and concern on coal miners＇ health.

关键词： Microbial community Bioaerosols Methanotrophs Coal mine

Unified stability condition for particulate and aggregative fluidization—Exploring energy dissipation with direct numerical simulation

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Particuology 2013年第2期11卷 232-241页

作者： min wei Limin Wang Jinghai Li The EMMS Group State Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of Sciences University of Chinese Academy of Sciences

Fully resolved simulations of particulate and aggregative fluidization systems are performed suc-cessfully with the so-called combined lattice Boltzmann method and time-driven hard-sphere model （LBM-TDHS）. In this method, the discrete particle phase is described by time-driven hard-sphere model, and the governing equations of the continuous fluid phase are solved with lattice Boltz-mann method. Particle-fluid coupling is implemented by immersed moving boundary method. Time averaged flow structure of the simulated results show the formation of core-annulus structure and sigmoid distribution of voidage in the axial direction, which are typical phenomena in fluidization systems. Combining the results of the simulation, the energy consumption Nst for suspending and transporting solids is calculated from the direct numerical simulation （DNS） of fluidization, and the stability criterion Nst/NT = rain proposed in EMMS/bubbling model is verified numerically. Further-more the numerical results show that the value of Nst/NT in particulate fiuidization is much higher than that in aggregative fluidization, but Nst/NT = rain is effective for both particulate and aggregative fluidization.

关键词： Direct numerical simulation Fluidization Stability condition Lattice-Boltzmann method Time-driven hard-sphere model