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Journal of Wuhan University of Technology(Materials Science) 2025年第1期 232-239页

作者：刘鹏 MAO Junpeng FANG Yanfeng YU Yunwu CHEN Changxiu TANG Ning wan ye GU Yaxin LIU Yunxue wanG Lihua School of Materials Science and Engineering Shenyang Jianzhu University

A new modified blend ultrafiltration （UF） membrane with good hydrophilicity,high porosity and excellent anti-fouling performance was developed by using carboxylic multi-walled carbon nanotube （CMWCNT） as casting solution ***,a composite nanofiltration （NF） membrane with large water flux and good retention rate was fabricated by using the PVDF/CMWCNT blend UF membrane as the substrate,and polyvinyl alcohol （PVA）,β-cyclodextrin （β-CD） and polyethylenimine （PEI） as the coating *** results show that with the appropriate addition of CMWCNT in the casting solution,the surface roughness,porosity and recovery rate of the PVDF/CMWCNT blend UF membrane is obviously *** water flux of blend UF membrane is significantly improved when the CMWCNT content increases from 0 wt% to 0.2 wt%.The water flux of blend UF membrane with 0.2 wt% CMWCNT is 162.7 L/（m2·h）,which is 44.3% higher than that of the pure PVDF *** β-CD content is 0.8 wt%,the retention rate of Congo red by PVDF/CMWCNT/β-CD composite NF membrane reaches 98.7%,which is 28.3% higher than that of single PVA/PEI modified *** research will provide a new idea and simple method for developing novel high-performance composite NF membranes.

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Does the long-term application of calcium superphosphate lead to an increase of the soil rare earth element contents？

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Journal of Environmental Sciences 2006年第1期18卷 130-134页

作者： ZHANG Yun DENG Li-bin ye wan-Hui South China Botanical Garden Chinese Academy of Sciences Guangzhou 510650 China School of Resources and Environmental Science Hubei University Wuhan 430062 China Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

In order to test whether the long-term application of calcium superphosphate leads to an increase of the soil rare earth element contents, superphosphate fertilized soils were sampled and compared with superphosphate-free soils. Spectrophlame inductively coupled argon plasma atomic emission spectrophotometer （ICP-AES） was applied to quantify the rare earth elements （REEs）. The total rare earth element contents in calcium superphosphate from Zhijin County, west part of Guizhou Province, China （produced by the sulphuric acid treatment of the apatites） are about 2.54 mg/g. Between 38 and 189 gREEs/hm^2 per year （available for plants, estimated by 2% citric acid） will be introduced into the soil solution when applying 320 kg superphosphate/hm^2 per year. The long-term application of the latter will increase the REE content by about 18% in the soil surface layer in these areas. A statistically significant increase of the content of the rare earths in some cultivated soils should not be neglected.

关键词： rare earth elements calcium superphosphate soil

Prediction model for cost data of a power transmission and transformation project based on Pearson correlation coefficient-IPSO-ELM

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Clean Energy 2021年第4期5卷 756-764页

作者： Ju Xin Liu ShangKe Xiao YanLi wan ye State Grid Ningxia Electric Power Co.Ltd Eco-Tech Research Institute NingXia Yinchuan750004P.R.China

In view of the difficulty in predicting the cost data of power transmission and transformation projects at present,a method based on Pearson correlation coefficient-improved particle swarm optimization(IPSO)-extreme learning machine(ELM)is *** this paper,the Pearson correlation coefficient is used to screen out the main influencing factors as the input-independent variables of the ELM algorithm and IPSO based on a ladder-structure coding method is used to optimize the number of hidden-layer nodes,input weights and bias values of the ***,the prediction model for the cost data of power transmission and transformation projects based on the Pearson correlation coefficient-IPSO-ELM algorithm is *** the analysis of calculation examples,it is proved that the prediction accuracy of the proposed method is higher than that of other algorithms,which verifies the effectiveness of the model.

关键词： cost data of power transmission and transformation project Pearson correlation coefficient IPSO-ELM algorithm project-cost prediction

Research on the risk-evaluation model of power transmission and transformation projects based on multilevel fuzzy-thought weighting for cloud-model improvement

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Clean Energy 2022年第1期6卷 153-164页

作者： Yanli Xiao Ruixin Gou Zheng wang ye wan State Grid Ningxia Electric Power Co.Ltd Eco-Tech Research Institute NingXia Yinchuan750004P.R.China

The risk evaluation of power transmission and transformation projects is a complex and comprehensive evaluation process influenced by many factors and involves many *** order to solve the uncertainty and fuzziness problems in the process of the multilevel fuzzy risk evaluation of power transmission and transformation projects,this paper introduces the cloud theory,which is specialized in the study of uncertainty problems and constructs the multilevel fuzzy comprehensive risk-evaluation model of power transmission and transformation projects based on the improved multilevel fuzzy-thought weighting based on the cloud ***,the risk of the Beijing 220-kV Tangyu power transmission and transformation project is evaluated and the feasibility of the evaluation model is *** results of the evaluation and the evaluation layer cloud model are combined with MATLAB simulation to show that the risk level of the project is between large risk and general risk.

关键词： power transmission and transformation project risk cloud model multilevel fuzzy comprehensive evaluation smart grid

Optical Properties of Plasmon Resonances with Ag/SiO2/Ag Multi-Layer Composite Nanoparticles

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Chinese Physics Letters 2010年第6期27卷 107-109页

作者： MA ye-wan ZHANG Li-Hua WU Zhao-wang ZHANG Jie School of Physics and Electric Engineering Anqing Teachers College Anqing 246011

Optical properties of plasmon resonance with Ag/SiO2/Ag multi-layer nanoparticles are studied by numerical simulation based on Green＇s function theory. The results show that compared with single-layer Ag nanoparticles, the multi-layer nanoparticles exhibit several distinctive optical properties, e.g. with increasing the numbers of the multi-layer nanoparticles, the scattering efficiency red shiRs, and the intensity of scattering enhances accordingly. It is interesting to find out that slicing an Ag-layer into multi-layers leads to stronger scattering intensity and more ＂hot spots＂ or regions of stronger field enhancement. This property of plasmon resonance of surface Raman scattering has greatly broadened the application scope of Raman spectroscopy. The study of metal surface plasmon resonance characteristics is critical to the further understanding of surface enhanced Raman scattering as well as its applications.

关键词：复合纳米粒子等离子体共振光学性能表面增强拉曼散射银纳米粒子格林函数理论散射强度共振拉曼散射

Optimal Operation of Electric Vehicles and Distributed Generation Resources in Smart Grid Considering Load Management

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Energy Engineering 2022年第6期119卷 2655-2679页

作者： Zheng wang Shangke Liu Yanli Xiao ye wan Bin Bai State Grid Ningxia Electric Power Co. Ltd.Eco-Tech Research InstituteYinchuan750004China

Technology advancement and the global tendency to use renewable energy in distributed generation units in the distribution network have been proposed as sources of energy *** the complexity of their protection,as well as the operation of distributed generation resources in the distribution network,factors such as improving reliability,increasing production capacity of the distribution network,stabilizing the voltage of the distribution network,reducing peak clipping losses,as well as economic and environmental considerations,have expanded the influence of distributed generation(DG)resources in the distribution *** location of DG sources and their capacity are the key factors in the effectiveness of distributed generation in the voltage stability of distribution ***,along with the scattered production sources of electric vehicles with the ability to connect to the network,due to having an energy storage system,they are known as valuable resources that can provide various services to the power *** vehicles can empower the grid or be used as a storage supply source when parked and connected to the *** paper introduces and studies a two-stage planning framework for the concurrent management of many electric vehicles and distributed generation resources with private *** the first stage,the aim is to increase the profit of electric vehicles and distributed generation sources;finally,the purpose is to reduce operating *** proposed scheduling framework is tested on a distribution network connected to bus 5 of the RBTS sample *** distributed generation sources and electric vehicles,we integrate time-consistent load management into the *** to distributed generation sources such as photovoltaic systems and wind turbines and the studied design in the modeling,we use the Taguchi TOAT algorithm to generate and reduce the scenario to ensure the uncertainty in renewable *** software is used t

关键词： Electric vehicle distributed generation sources coordinator uncertainty taguchi algorithm harmony search algorithm load management

Study on adverse effects of groundwater level rising induced by land creation engineering in hilly and gully area of the Loess Plateau

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Journal of Mountain Science 2019年第12期16卷 2739-2753页

作者： DUAN Xu DONG Qi ye wan-jun ZHOU Jia-lin OH Erwin School of Architectural and Civil Engineering Xi'an University of Science and TechnologyXi'anShaanxi 710054China Shaanxi Science&Technology Holding Group Co. Ltd.Xi'anShaanxi 710054China State Key Laboratoiij for Strength and Vibration of Mechanical Structures Xi'an Jiaotong UniversityXi'an 710049China School of Engineering Griffith UniversityGold Coast 7222Australia

Land creation projects have been implemented in China to expand urban space in mountainous *** addition to the predictable settlement brought about by filling construction,varying degrees of land subsidence and engineering failures have a demonstrated relationship to groundwater level fluctuation induced by land creation *** this work,we adopted a typical large-scale land creation project,Yan’an New City in Shaanxi province,West China,as our study *** to conducting the main experiment,preliminary field investigation and groundwater level monitoring were conducted to determine the groundwater fluctuation trend induced by land creation *** a blind drainage system was implemented,the depth aspect of groundwater level changes after large-scale land creation still needed to be *** study the degree of impact and the settlement mechanism induced by the rising groundwater level,we conducted a Water Immersion Test(WIT)in a typical land creation site for 107 *** rising groundwater level was simulated by injecting water from the bottom of the filling *** the WIT,the soil water content,surface subsidence,and internal settlement of soil at different depths were *** subsidence development could be categorized into four stages during the water level *** second stage,which is defined as the point when the groundwater level rises to 10 m,marked the critical point in the ***,it was ascertained that the local settlement in regions that were originally composed of steep slopes is larger than that in originally flat *** addition,ground cracks and sinkholes in the study area were inspected;and it was determined that they would become new channels that would accelerate water infiltration and exacerbate the *** on the results from our field investigation and testing,several suggestions are proposed for land creation projects to mitigate issues associated with construc

关键词： Water immersion test Land creation engineering Loess plateau Groundwater Subsidence

Spatial Patterns and Interspecific Associations of Three Canopy Species at Different Life Stages in a Subtropical Forest, China

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Journal of Integrative Plant Biology 2008年第9期50卷 1140-1150页

作者： Lin Li Shi-Guang Wei Zhong-Liang Huang wan-Hui ye Hong-Lin Cao South China Botanical Garden Chinese Academy of Sciences Guangzhou 510650 China Graduate University of Chinese Academy of Sciences Beijing 100049 China Applied Science and Technology College Guilin University of Electronic Technology Guilin 541004 China

Spatial patterns of species at different life stages are an important aspect for understanding causal mechanisms that facilitate species co-existence. Using Ripley＇s univariate L（t） and bivariate L12（t） functions, we analyzed the spatial patterns and *** associations of three canopy species at different life history stages in a 20-ha subtropical forest plot in Dinghushan Nature Reserve. Based on diameter at breast height （DBH）, four life stages were distinguished. Castanopsis chinensis and Schima superba showed a unimodal DBH distribution. Engelhardtia roxburghiana showed a bimodal curve. L（t） function analysis showed significantly aggregated distributions of all three species at later life stages and random distribution at early life stages at some scales. From the analysis of L12（t） function, the results showed the positive association was a dominant pattern for most species pairs at most scales but the intensity of association decreases with the increase of life stages. Juveniles of the three species had no negative intra- and interspecific associations with the older life stages. Only premature trees were suppressed by overmature trees at some scales. Considering these results, we found three canopy-dominant species that lacked regeneration. There was no direct competition occurring between understorey individuals. Young trees can grow well under conspecific species with two other species. Longevity and lack of regeneration led to a large number of trees stored in mature and overmature stages, therefore, intra- and inter-competition can be strong at later life stages.

关键词： Castanopsis chinensis Dinghushan Engelhardtia roxburghiana interspecific association Schima superba spatial pattern.

LncRNAs are potentially involved in the immune interaction between small brown planthopper and rice stripe virus

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Journal of Integrative Agriculture 2019年第12期18卷 2814-2822页

作者： CHEN Meng-yao ye wan-yi XIAO Hua-mei LI Mei-zhen CAO Zheng-hong ye Xin-hai ZHAO Xian-xin HE Kang LI Fei Institute of Insect Sciences Zhejiang UniversityHangzhou 310058P.R.China College of Life Sciences and Resource Environment Yichun UniversityYichun 336000P.R.China

Small brown planthopper(SBPH, Laodelphax striatellus Fallén) is an important vector of major crop pathogen rice stripe virus(RSV). Controlling SBPH population is an efficient approach to control RSV. Long non-coding RNAs(lnc RNA) have been reported to block virus replication in hosts. However, the function of lnc RNAs in RSV infection and replication is still unknown. Here, we aimed to study regulatory mechanisms of lnc RNA in an immune system during RSV infection. First, lnc RNA genes were predicted from SBPH transcriptomes using a bioinformatics pipeline based on characteristics of lnc RNA. We identified 4 786 lnc RNA genes corresponding to 5 790 transcripts in SBPH from an RNA-Seq dataset of 15 transcriptomes. Differential expression analysis indicated that 3, 11, and 25 lnc RNA genes were highly expressed in gut, salivary gland, and ovary, respectively, of viruliferous SBPH(Student’s t-test, P<0.05). We randomly selected eight lnc RNAs for expression validation using quantitative real-time PCR, confirming the differential expression of these lnc RNAs between viruliferous and non-viruliferous SBPH. In summary, we present evidence that the expression of lnc RNA genes was induced by RSV infection, suggesting that RSV might be involved in the antivirus immune system in SBPH and participate in regulating the RSV replication mechanism. These data provide helpful information for future investigations of the interaction between lncRNA and RSV.

关键词： lncRNA small brown planthopper rice stripe virus RNA-Seq viral infection

Preparation and Performance of Organically Modified Montmorillonite Composite Separation Membrane

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Journal of Wuhan University of Technology(Materials Science) 2024年第5期39卷 1100-1107页

作者： LIU Peng BI Yuanyuan CHEN Shaowei wan ye YU Yunwu FANG Yanfeng GU Yaxin LI Feihong TANG Ning LI Xiangyu School of Materials Science and Engineering Shenyang Jianzhu UniversityShenyang 110168China

A new composite separation membrane was developed by using organically modified montmorillonite(OMMT)as an *** effects of OMMT on the modification and properties of PVDF composite membranes were *** is found that different kinds and amounts of OMMT into the casting solution can obviously change the pure water flux,separation performance and hydrophilicity of composite membrane in varying *** the TA/PDA-MMT was 0.5 wt%,the pure water flux of the membrane reached the maximum,which was 584.7 L/(m^(2)·h),about 6 times that of the original *** OMMT/PVDF composite membrane had good hydrophilicity and stability in the treatment of oily *** development of novel OMMT/PVDF composite membrane will provide a new idea for solving the problem of oily wastewater treatment.

关键词： membrane montmorillonite composite wastewater