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Effect of Modification Treatment on Chloride Ions Permeability and Microstructure of Recycled Brick-mixed Aggregate Concrete

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Journal of wuhan University of Technology(Materials Science) 2024年第3期39卷 728-737页

作者：何子明申爱琴 WANG Xiaobin wu jinhua WANG Lusheng School of Civil and Architectural Engineering Liaoning University of TechnologyJinzhou 121001China School of Highway Chang’an UniversityXi’an 710064China Department of Road and Bridge Engineering Liaoning Provincial College of Communica-tionsShenyang 110122China

The modification methods of pozzolan slurry combined with sodium silicate and silicon-based additive were respectively adopted to treat recycled coarse brick-mixed aggregate(RCBA)in this *** compressive strength and chloride permeability resistance of recycled aggregate concrete(RAC)before and after modification treatment were tested,and the microstructure of RAC was analyzed by mercury intrusion porosimetry(MIP)and scanning electron microscopy(SEM).The results show that the physical properties of RCBA strengthened by modification treatment are improved,and the compressive strength and chloride permeability resistance of treated RAC are also significantly *** modification treatment optimizes the pore size distribution of RAC,which increases the number of gel pores and transition pores,and decreases the number of capillary pores and macro *** surface fractal dimension shows a significant correlation with chloride diffusion coefficient,indicating that the variation of chloride permeability of treated RAC is consistent with the microstructure evolution.

关键词： recycled aggregate concrete modification treatment compressive strength chloride permeability resistance microstructure

Analysis and optimum design of rider-bicycle mechanisms:Design of bicycle parameters for a specified rider

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Science China(Technological Sciences) 2011年第11期54卷 3027-3034页

作者： LIU XinJun WANG Jing YU WeiYang wu jinhua State Key Laboratory of Tribology and Institute of Manufacturing Engineering Department of Precision Instruments and Mechanology Tsinghua University Beijing 100084 China

Optimum design of rider-bicycle mechanisms is very important for customizing bicycles and plays a crucial role in the improvement of athletes' performances and in protection of the *** the birth of the first bicycle,people have been keeping optimizing bicycles with respect to physical conditions of *** modern design,the basic structure of a bicycle has been formulized,while many geographic parameters remain *** this paper,the bicycle and the human body are considered as a kinematic mechanism,called rider-bicycle *** optimum design is implemented from the perspective of ***-saving and comfortableness are considered at the same *** corresponding performance charts are drawn and the relationship between the performances and parameters of seat height,crank length and body parameters are *** using these charts,the optimal design method of bicycle's parameters for a specified person is then *** solutions to get suitable seat height and crank length for a person are obtained *** research is of significance for customizing bicycles and design of bicycle robot.

关键词： optimum design rider-bicycle mechanism performance index performance chart

Insights into the electrochemical degradation of sulfamethoxazole and its metabolite by Ti/SnO_(2)-Sb/Er-PbO_(2) anode

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Chinese Chemical Letters 2020年第10期31卷 2673-2677页

作者： Yanping Wang Chengzhi Zhou jinhua wu Junfeng Niu School of Environment and Energy South China University of TechnologyGuangzhou 510006China Research Center for Eco-Environmental Engineering Dongguan University of TechnologyDongguan 523808China

Electrochemical degradation of sulfamethoxazole(SMX)and its metabolite acetyl-sulfamethoxazole(AcSMX)by Ti/SnO_(2)-Sb/Er-PbO_(2) were *** indicated that the electrochemical degradation of SMX and Ac-SMX followed pseudo-first-order *** rate constants of SMX and Ac-SMX were 0.268 and 0.072 min-1 at optimal curre nt density of 10 and 14 mA/cm^(2),*** products of SMX and Ac-SMX were identified and the possible degradation pathways,including the cleavage of S-N bond,opening ring of isoxazole and nitration of amino group,were *** organic carbon removal of SMX was nearly 63.2%after 3 h electrochemical degradation.22.4%nitrogen of SMX was trans formed to NO_(3)-,and 98.8%sulfur of SMX was released as SO_(4)2-.According to quantitative structureactivity relationship model,toxicities of SMX and Ac-SMX to aquatic organisms significantly decreased after electrochemical *** energy consumption for 90%SMX and Ac-SMX degradation was determined to be 0.58-8.97 and 6.88-44.19 Wh/L at different experimental conditions,*** with parent compound SMX,the metabolite Ac-SMX is more refractory and toxic,which emphasizes the importance of taking its metabolites into account when investigating the disposal of pharmaceuticals from wastewater.

关键词： Electrochemical degradation Sulfamethoxazole and metabolite Degradation mechanism Quantitative structure-activity relationship

Self-optimized single-nanowire photoluminescence thermometry

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Light(Science & Applications) 2023年第2期12卷 259-271页

作者： Zhang Liang jinhua wu Ying Cui Hao Sun Cun-Zheng Ning Department of Electronic Engineering Tsinghua University100084 BeijingChina College of Integrated Circuits and Optoelectronic Chips Shenzhen Technology University518118 ShenzhenGuangdongChina

Nanomaterials-based photoluminescence thermometry(PLT)is a new contact-free photonic approach for temperature sensing,important for applications ranging from quantum technology to biomedical imaging and *** though numerous new materials have been explored,great challenges and deficiencies remain that hamper many *** contrast to most of the existing approaches that use large ensembles of rare-earth-doped nanomaterials with large volumes and unavoidable inhomogeneity,we demonstrate the ultimate size reduction and simplicity of PLT by using only a single erbium-chloride-silicate(ECS)***,we propose and demonstrate a novel strategy that contains a self-optimization or "smart"procedure to automatically identify the best PL intensity ratio for temperature *** automated procedure is used to self-optimize key sensing metrics,such as sensitivity,precision,or resolution to achieve an all-around superior PLT including several record-setting metrics including the first sensitivity exceeding 100%K^(-1)(~138%K^(-1)),the highest resolution of 0.01 K,and the largest range of sensible temperatures 4-500 K operating completely within 1500-1800 nm(an important biological window).The high-quality ECS nanowire enables the use of well-resolved Stark-sublevels to construct a series of PL intensity ratios for optimization in infrared,allowing the completely Boltzmann-based sensing at cryogenic temperature for the frst *** single-nanowire PLT and the proposed optimization strategy overcome many existing challenges and could fundamentally impact PL nano-thermometry and related applications such as single-cell thermometry.

关键词： optimization exceeding simplicity

Crystal structure of Lamellipodin implicates diverse functions in actin polymerization and Ras signaling

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Protein & Cell 2013年第3期4卷 211-219页

作者： Yu-Chung Chang Hao Zhang Mark LBrennan jinhua wu Department of Developmental Therapeutics Fox Chase Cancer Center333 Cottman AvenuePhiladelphiaPA 19111USA

The adapter protein Lamellipodin(Lpd)plays an important role in cell *** particular,Lpd mediates lamellipodia formation by regulating actin dynamics via interacting with Ena/VASP *** RA-PH tandem domain confi guration suggests that like its paralog RIAM,Lpd may also mediate particular Ras GTPase *** determined the crystal structures of the Lpd RA-PH domains alone and with an N-terminal coiled-coil region(cc-RA-PH).These structures reveal that apart from the anticipated coiled-coil interaction,Lpd may also oligomerize through a second intermolecular contact *** then validated both oligomerization interfaces in solution by mutagenesis.A fluorescence-polarization study demon-strated that Lpd binds phosphoinositol with low *** on our crystallographic and biochemical data,we propose that Lpd and RIAM serve diverse functions:Lpd plays a predominant role in regulating actin polymerization,and its function in mediating Ras GTPase signaling is largely suppressed compared to RIAM.

关键词： Lamellipodin crystal structure RIAM coiledcoil oligomerization

Des=gn of efficient simplified genomic DNA and bisulfite sequencing in large plant populations

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Frontiers of Electrical and Electronic Engineering in China 2016年第3期4卷 226-239页

作者： jinhua wu Zewei Luo Ning Jiang Institute of Biostatistics Fudan University Shanghai 200438 China

The next generation sequencing enables generation of high resolution and high throughput data for structure sequence of any genome at a fast declining cost. This opens opportunity for population based genetic and genomic analyses. In many applications, whole genome sequencing or re-sequencing is unnecessary or prohibited by budget limits. The Reduced Representation Genome Sequencing （RRGS）, which sequences only a small proportion of the genome of interest, has been proposed to deal with the situations. Several forms of RRGS are proposed and implemented in the literature. When applied to plant or crop species, the current RRGS protocols shared a key drawback that a significantly high proportion （up to 60%） of sequence reads to be generated may be of non-genomic origin but attributed to chloroplast DNA or rRNA genes, leaving an exceptional low efficiency of the sequencing experiment. We recommended and discussed here the design of optimized simplified genomic DNA and bisulfite sequencing strategies, which may greatly improves efficiency of the sequencing experiments by bringing down the presentation of the undesirable sequencing reads to less than 10% in the whole sequence reads. The optimized RAD- seq and RRBS-seq methods are potentially useful for sequence variant screening and genotyping in large plant/crop populations.

关键词： plant/crop genomes next generation sequencing genotyping restriction-enzyme sites associated DNA(RAD) DNA methylation reduced representation bisulfite sequencing

The donor-dependent methoxy effects on the performance of hole-transporting materials for perovskite solar cells

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Journal of Energy Chemistry 2020年第8期29卷 10-17,I0001页

作者： Mengyuan Li jinhua wua Guoguo Wang Bingxue wu Zhe Sun Song Xue Qiquan Qiao Mao Liang Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion Department of Applied ChemistryTianjin University of TechnologyTianjin 300384.China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Collaborative Innovation Center of Chemical Science and EngineeringCollege of ChemistryNankai UniversityTianjin 300071China Center for Advanced Photovoltaics Department of Electrical EngineeringSouth Dakota State UniversityBrookingsSD 57007 United States

In this work, a comprehensive study on the deliberate molecular design and modifications of electron donors is carried out to elucidate correlations between the methoxy effects and donor configuration of hole-transporting materials(HTMs). Our initial findings demonstrate the donor-dependent methoxy effects. Photovoltaic performance of the HTM with twisted donor highly depends on the methoxy substituent. In contrast, efficiency’s reliance on methoxy is insignificant for the HTM with planar donor. The HTM(M123) featuring the methoxy–substituted carbazole shows a decent power conversion efficiency of 19.33% due to synergistic effects from both planar structure and methoxy. This work gives a guideline to access HTMs reaching both high-performance and good stability.

关键词： Hole-transporting materials Donor configuration Methoxy effect Perovskite solar cells

Synthesis and crystal structure of a novel two-dimensional network complex[Mn(O_(2)CCH_(2)Cl)_(2)(phen)]_(n)

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Science China Chemistry 2005年第z1期48卷 79-82页

作者： LI Jun ZHANG jinhua wu Aizhi XI Yun GUO Hui ZHANG Fengxing Department of Chemistry Northwest University/Shaanxi Province Key Laboratory of Physicoinorganic Chemistry Xi'an 710069 China Department of Chemistry Northwest University/Shaanxi Province Key Laboratory of Physicoinorganic Chemistry Xi'an 710069 China Department of Chemistry Northwest University/Shaanxi Province Key Laboratory of Physicoinorganic Chemistry Xi'an 710069 China Department of Chemistry Northwest University/Shaanxi Province Key Laboratory of Physicoinorganic Chemistry Xi'an 710069 China Department of Chemistry Northwest University/Shaanxi Province Key Laboratory of Physicoinorganic Chemistry Xi'an 710069 China Department of Chemistry Northwest University/Shaanxi Province Key Laboratory of Physicoinorganic Chemistry Xi'an 710069 China

A novel two-dimensional network manganese(Ⅱ) polymer complex [Mn(O2CCH2CI)2-(phen)]n has been synthesized and characterized by elemental analysis and IR spectrum. The crystal structure of title complex has also been determined, which is in monoclinic of a space group P21/c with the following unit cell parameters at 294K: a=1.9738(4) nm, b =1.1384(2) nm, c =0.74915(14) nm, V =1.6795(5) nm3, Z= 2.

关键词： synthesis, polymer, manganese complex, two-dimensional network.

Hybrid microbial electrolytic/UV system for highly efficient organic pollutants removal

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Journal of Environmental Sciences 2019年第9期31卷 39-45页

作者： Yingying You Shaobin Huang Xuesong Zhao Han Li Fangqin Cheng jinhua wu Yongqing Zhang Shaofeng Zhou School of Environment and Energy South China University of Technology Guangzhou 510006 China School cf Environmental Science and Engineering Guangdong University of Technology Guangzhou 510006 China Department of Environmental Engineering Technical University cf Denmark DK-2800 Lyngby Denma Institute of Resources and Environmental Engineering Shanxi University Taiyuan 030006 China Guangzhou Taihe Water Ecology Technology Co. Ltd. Guangzhou 510220 China

This study for the first time proposed an efficient microbial electrolyte/UV system for Methyl Orange decomposition. With an external applied voltage of 0.2 V and cathode aeration of20 mL/min, H2O2 could be in-situ generated from two-electron reduction of oxygen in cathode, reaching to 8.1 mg/L in 2 hr and continued to increase. The pollutant removal efficiency of approximate 94.7% was achieved at initial neutral pH, with the activation of ·OH in the presence of UV illumination. Although the nature of its guiding principles remain on the vista of practical exploration, this proof-of-concept study provides an alternative operation pattern of solar–microbial hybrid technology for future wastewater treatment from a basic but multidisciplinary view.

关键词： Microbial electrolytic cell Hydrogen peroxide production Photo-Fenton reaction Organic pollutants removal Advanced oxidation process