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Journal of Wuhan University of Technology(Materials Science) 2017年第1期32卷 67-75页

作者：胡秀丽 XIAO Leqin JIAN Xiaoxia zhou weiliang School of Chemical Engineering Nanjing University of Science and Technology School of Chemistry and Materials Engineering Changshu Institute of Technology

Ag loaded mesoporous silica-embedded TiO_2 nanocomposites were successfully synthesized via two different routes,including one-pot solvothermal method and solvothermal-chemical reduction method,both using Titanium（Ⅳ） n-butoxide（Ti（OC_4H_9）_4） as a precursor,formic acid as a solvent and reducing agent,silver nitrate as a silver source and tetraethyl silicate（TEOS） as a *** transmission electron microscopic（TEM） images showed that silica-embedded anatase TiO_2 sample exhibited approximately rhombic shape and Ag nanoparticles could be embedded into the nanocomposites or deposited on the surface with high *** N_2 adsorption-desorption isotherms indicated that the silica-embedded anatase TiO_2 had obvious mesoporous structure with a BET specific surface area of 203.5 m^2·g^-*** Ag loaded silica-embedded TiO_2composites showed a higher photocatalytic H2-generation activity from water splitting under simulative solar light irradiation than that of TiO2 *** maximum H_2 production rate（6.10 mmol·h^-1·g^-1） was obtained over 2%Ag/silica-embedded TiO2 nanocomposites（2%Ag/MST） prepared by solvothermal-chemical reduction method,which was 20 times that achieved on the silica-embedded TiO2 *** enhanced photocatalytic H2-evolution activity of Ag loaded mesoporous silica-embedded TiO2 nanocomposites can be attributed to the multi-function of surface Ag co-catalyst,mesoporous structure,and embedding of silica.

关键词： hydrogen production Ag co-catalyst mesopore silica-embedding TiO2

Monocular vision and calculation of regular three-dimensional target pose based on Otsu and Haar-feature AdaBoost classifier

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International Journal of Agricultural and Biological Engineering 2020年第5期13卷 171-180页

作者： Yuanhong Li Hongjun Wang weiliang zhou Zehao Xue Department of Engineering South China Agricultural UniversityGuangzhou 510642China Southern Key Laboratory of Agricultural Equipment Machinery South China Agricultural UniversityGuangzhou 510642China Department of Biological and Agricultural Engineering Texas A&M UniversityCollege StationTX77843USA

Using machine vision to identify and sort scattered regular targets is an urgent problem to be solved in automated production *** study proposed a three-dimensional(3D)recognition method combining monocular vision and machine learning *** to the color characteristics of the targets,to convert the original color picture into YCbCr mode and use the 2D Otsu algorithm to perform gray level image segmentation on the Cb *** the Haar-feature training was carried *** comparison of feature training and Haar method for Hough transform showed that the recognized time of Haar-feature AdaBoost trainer reached 31.00 ms,while its false recognized rate was 3.91%.The strong classifier was formed by weight combination,and the Hough contour transformation algorithm was set to correct the normal vector between plane coordinate and camera coordinate *** monocular vision system ensured that the field of camera view had not obstructed while the dots were being *** was measured and calculated angles between targets and the horizontal plane which coordinate points of the identified plane *** testing results were compared with the Otsu and AdaBoost trainer where the prediction and training set have an error of no more than 0.25 *** correct rate can reach 95%.It shows that the Otsu and Haar-feature based on AdaBoost algorithm is feasible within a certain error ranges and meet the engineering requirements for solving the poses of automated regular three-dimensional targets.

关键词： Otsu Haar-feature AdaBoost 3D position target pose monocular vision error analysis

Engineering hollow core-shell hetero-structure box to induce interfacial charge modulation for promoting bidirectional sulfur conversion in lithium-sulfur batteries

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Journal of Energy Chemistry 2023年第5期80卷 128-139,I0004页

作者： weiliang zhou Xinying Wang Jiongwei Shan Liguo Yue Dongzhen Lu Li Chen Jiacheng Zhang Yunyong Li School of Materials and Energy Guangdong University of TechnologyNo.100 Waihuan Xi RoadGuangzhou Higher Education Mega CenterGuangzhou 510006GuangdongChina

Severe polysulfide shuttling and sluggish sulfur redox kinetics significantly decrease sulfur utilization and cycling stability in lithium-sulfur batteries(LSBs).Herein,we develop a hollow CoO/CoP-Box core-shell heterostructure as a model and multifunctional catalyst modified on separators to induce interfacial charge modulation and expose more active sites for promoting the adsorption and catalytic conversion ability of sulfur *** and experimental findings verify that the in-situ formed core-shell hetero-interface induces the formation of P-Co-O binding and charge redistribution to activate surface O active sites for binding lithium polysulfides(LiPSs)via strong Li-O bonding,thus strongly adsorbing with Li ***,the strong Li-O bonding weakens the competing Li-S bonding in LiPSs or Li2S adsorbed on CoO/CoP-Box surface,plus the hollow heterostructure provides abundant active sites and fast electron/Li+transfer,so reducing Li2S nucleation/dissolution activation *** expected,LSBs with CoO/CoP-Box modified separator and traditional sulfur/carbon black cathode display a large initial capacity of 1240 mA h g^(-1)and a long cycling stability with 300 cycles(~60.1%capacity retention)at ***,the thick sulfur cathode(sulfur loading:5.2 mg cm^(-2))displays a high initial areal capacity of 6.9 mA h cm^(-2).This work verifies a deep mechanism understanding and an effective strategy to induce interfacial charge modulation and enhance active sites for designing efficient dual-directional Li-S catalysts via engineering hollow core-shell hetero-structure.

关键词： CoO/CoP-Box Hollow core-shell hetero-structure Multifunctional catalysts Interfacial charge modulation Lithium sulfur batteries

Effects of dietary ratio of n-6 to n-3 polyunsaturated fatty acids on immunoglobulins, cytokines, fatty acid composition, and performance of lactating sows and suckling piglets

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Journal of Animal Science and Biotechnology 2013年第2期4卷 137-144页

作者： Wei Yao Jie Li Jun jun Wang weiliang zhou Qingbo Wang Rongchang Zhu Fenglai Wang Phil Thacker Ministry of Agriculture Feed Industry Centre State Key Laboratory of Animal Nutrition China Agricultural University Tianjin National Breeding Pig Farm Ninghe Livestock & Fisheries Bureau Department of Science University of Saskatchewan

This experiment was conducted to investigate the effects of dietary ratios of n-6：n-3 polyunsaturated fatty acids （PUFA） on the performance of lactating sows and their piglets. Thirty pregnant Landrace sows were assigned to one of three treatments from d 108 of gestation until weaning （26-29 d） and were fed diets containing different ratios of n-6：n-3 PUFA including 3：1,9：1 and 13：1. The effects on sow and litter production traits were examined together with an assessment of sow body condition. No differences were detected among the treatments for the daily feed intake of sows or changes in sow weight and back-fat levels during lactation （P 〉 0.05）. Litter size at d 14 and d 21 were tended to increase in 3：1 treatment compared with 9：1 and 13：1 treatments （P 〈 0.10）. Litter weight gain （1.77 kg/d） from d 0 to d 14 was tended to increase in 9：1 groups compared with the other two treatments （P 〈 0.10）. A significant difference was observed for the content of a -linolenic acid, total n-3 PUFA, and the ratio of n-6：n-3 PUFA in the colostrum, milk, and piglets plasma （P 〈 0.01）. The effects of different ratios of n-6：n-3 PUFA in sow diets on colostrum, milk and piglet plasma immunoglobulin concentrations are studied. No difference was observed among treatments in the concentrations of IgM, and IgA in colostrum （P 〉 0.05）. A great significant difference for IgG concentration was observed among 3 group in colostrum. A great significant difference for IgA, and IgM （P〈 0.01） concentrations in piglet plasma at d14 and a significant difference for IgG（P 〈 0.05） was observed at d14. Furthermore, at d 21 of lactation, piglet plasma IgG and IgA concentration were greater in 3：1 compared with 13：1 group （P 〈 0.01）. In summary, the current study demonstrated that altering the ratio of n-6：n-3 PUFA in lactating sow diet had an effect on the immune component including immunoglobulin and cytokines, and it tended to increase the litter average daily gain and improve the immune status o

关键词： n-6:n-3 polyunsaturated fatty acids Performance Fatty acid composition Immunoglobulin Cytokines

Simulation of secondary aerosols over North China in summer

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Science China Earth Sciences 2005年第z2期48卷 185-195页

作者： LIU Yu LI weiliang zhou Xiuji Chinese Academy of Meteorological Sciences Beijing 100081 China Chinese Academy of Meteorological Sciences Beijing 100081 China Chinese Academy of Meteorological Sciences Beijing 100081 China

The comparisons of observed and simulated NOx, CO, O3, NH3, HNO3, SO2 and PM2.5 indicate that CMAQ model can simulate variations of pollutants over North China ***, the model results show that high NH3 is in Hebei, Henan and Shandong provinces,with average concentration of (30-35)×10-9. The results of the sensitive experiment indicate that high concentration of NH3 has the efficiency of the production of secondary sulfate aerosol increase by more than 30%, especially at the juncture of Handan, Anyang and Changzhi that increased by 50%. In addition, NH3 also produces secondary ammonia and nitrate aerosol, and the sum of them is approximately equal to sulfate aerosol. The height of planetary boundary layer (PBL) in Beijing is higher in daytime, with average height of 1500 m at noon. This makes SO2,NH3 and HNO3 transported into upper PBL of 850 hPa. The high secondary sulfate, and ammonia and nitrate aerosol happen in the upper and lower PBL, respectively. Because PM2.5 lifetime is relatively long, it can be transported into the middle troposphere to form a thick aerosol layer,which is the arched roof of aerosol. The model result suggests that if the aerosol concentration in North China would be controlled, the reduction of NH3 emission is one of efficient ways besides the reduction of primary SO2, NOx and aerosol emission.

关键词： secondary aerosol, PM2.5, NH3.

Boosting Electrochemical Urea Synthesis via Constructing Ordered Pd–Zn Active Pair

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Nano-Micro Letters 2024年第11期16卷 529-540页

作者： weiliang zhou Chao Feng Xuan Li Xingxing Jiang Lingyan Jing Shuai Qi Qihua Huo Miaoyuan Lv Xinbao Chen Tianchi Huang Jingwen Zhao Na Meng Hengpan Yang Qi Hu Chuanxin He College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518060GuangdongPeople’s Republic of China School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering Shihezi UniversityShihezi 832003XinjiangPeople’s Republic of China

Electrochemical co-reduction of nitrate(NO_(3)^(-))and carbon dioxide(CO_(2))has been widely regarded as a promising route to produce urea under ambient conditions,however the yield rate of urea has remained ***,we report an atomically ordered intermetallic pallium-zinc(PdZn)electrocatalyst comprising a high density of PdZn pairs for boosting urea *** is found that Pd and Zn are responsible for the adsorption and activation of NO_(3)^(-)and CO_(2),respectively,and thus the co-adsorption and co-activation NO_(3)^(-)and CO_(2) are achieved in ordered PdZn *** importantly,the ordered and well-defined PdZn pairs provide a dual-site geometric structure conducive to the key C-N coupling with a low kinetical barrier,as demonstrated on both operando measurements and theoretical ***,the PdZn electrocatalyst displays excellent performance for the co-reduction to generate urea with a maximum urea Faradaic efficiency of 62.78%and a urea yield rate of 1274.42μg mg^(-1) h^(-1),and the latter is 1.5-fold larger than disordered pairs in PdZn *** work paves new pathways to boost urea electrosynthesis via constructing ordered dual-metal pairs.

关键词： Electrochemical C-N coupling Urea electrosynthesis Intermetallic compounds Geometric structures Active pairs

文化安全视野下中华武术的继承与发展——试论当代武术的文化迷失与重构

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学术界 2007年第1期 59-78页

作者：周伟良杭州师范学院体育学院浙江杭州310036

传统文化是一个民族和国家之所以能独立于世界民族之林的身份标识。然而,随着近二十年多来日益加剧的全球化进程,中华传统文化在西方强势文化的“笼罩”下被日益消解,这显然是不符合我们这个民族的生存发展以及对于国家安全的文化诉求... 详细信息

传统文化是一个民族和国家之所以能独立于世界民族之林的身份标识。然而,随着近二十年多来日益加剧的全球化进程,中华传统文化在西方强势文化的“笼罩”下被日益消解,这显然是不符合我们这个民族的生存发展以及对于国家安全的文化诉求的。武术是华夏文明长期氤氲滋养而发展起来的传统人体活动方式,承载着中国传统文化积极向上、自强不息的基本精神。但是,综观近半个世纪的现代武术运动发展,因西方体育文化的强烈辐射及自身的主动趋附,致使原本博大深邃的武术文化发生了一场活生生的“和平演变”。本文以全球化趋势下的国家文化安全为视角,就中华武术的文化意义、历史走向等几个层面予以剖析,旨在呼唤当代武术的发展应在全球化的汹涌浪潮中增强其文化创造力与竞争力,成为自觉构建我国文化安全屏障的一块重要基石。

关键词：全球化文化安全传统武术竞技武术文化迷失精神家园

西谛本《易筋经义》与述古堂本《易筋经》的比较研究

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中州学刊 2008年第5期 213-218页

作者：周伟良杭州师范大学浙江杭州310036

《易筋经》一书长年来有着广泛的社会影响,它与传统武功、传统导引、少林武术史以及武侠故事等有着诸多方面的关系。但由于资料的匮乏,人们对该书的不少情况往往云遮雾障,鲁鱼之讹不时发生,国家图书馆古籍部《易筋经义》与台湾图书馆藏... 详细信息

《易筋经》一书长年来有着广泛的社会影响,它与传统武功、传统导引、少林武术史以及武侠故事等有着诸多方面的关系。但由于资料的匮乏,人们对该书的不少情况往往云遮雾障,鲁鱼之讹不时发生,国家图书馆古籍部《易筋经义》与台湾图书馆藏述古堂钱遵王抄本《易筋经》为了解《易筋经》的早期概况及进行相关研究,提供了难得的第一手珍贵资料。

关键词：西谛本《易筋经义》述古堂本《易筋经》

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武术概念刍议

体育科学 1989年第4期10卷 12-16,93页

作者：周伟良北京体育学院

本文运用历史学、逻辑学的研究方法,围绕武术的概念问题,对它的本质属性、内容形式进行了探讨。并系统地考察了自三十年代开始武术正式成为近代体育项目以来,不同时期人们对它认识的异同。通过这种对研究对象的内涵、外延以及历史、现... 详细信息

本文运用历史学、逻辑学的研究方法,围绕武术的概念问题,对它的本质属性、内容形式进行了探讨。并系统地考察了自三十年代开始武术正式成为近代体育项目以来,不同时期人们对它认识的异同。通过这种对研究对象的内涵、外延以及历史、现状的比较、分析,来确定我们今天对武术的概念认识,进而在这基础上按照逻辑学的要求对武术作出定义。

关键词：武术理论武术概念本质属性逻辑学三十年代武术运动传统武术内容形式技击方法概念定义

义和团武术活动简论——义和团活动研究的一个新视域

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学术界 2011年第8期 163-177,273-276页

作者：周伟良杭州师范大学体育与健康学院浙江杭州310036

一个多世纪前的十九世纪末,正当苦难深重的中华民族面临被帝国主义列强瓜分的严重时刻,在神州北部大地上,爆发了一场轰轰烈烈的义和团运动。这场运动以它独特的组织方式和活动内容,震惊中外,在中国近代史上谱写了一曲悲壮颂歌。而以"习... 详细信息

一个多世纪前的十九世纪末,正当苦难深重的中华民族面临被帝国主义列强瓜分的严重时刻,在神州北部大地上,爆发了一场轰轰烈烈的义和团运动。这场运动以它独特的组织方式和活动内容,震惊中外,在中国近代史上谱写了一曲悲壮颂歌。而以"习拳练艺"为主要特点的义和团习武活动,同样对武术的历史发展产生了深刻影响,成为当时世纪之交中华武术社会进程中的一个鲜明坐标。文章就义和团的历史缘起、习武活动的方式与内容及其影响和作用,进行了较为深入的论述。

关键词：义和团义和拳习武活动