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Application of aluminosilicate clay mineral-based composites in photocatalysis

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Journal of Environmental Sciences 2022年第5期34卷 190-214页

作者： Yingtong zou Yezi hu Zewen Shen Ling Yao Duoyue Tang Sai Zhang Shuqin Wang Baowei hu Guixia Zhao Xiangke Wang College of Environmental Science and Engineering North China Electric Power UniversityBeijing 102206China School of Life Science Shaoxing UniversityShaoxing 312000China

Aluminosilicate clay mineral(ACM)is a kind of typical raw materials that used widely in manufacturing industry owing to the abundant reserve and low-cost *** past two decades,in-depth understanding on unique layered structure and abundant surface proper-ties endows ACM in the emerging research and application *** field of solar-chemical energy conversion,ACM has been widely used to support various semiconductor photocata-lysts,forming the composites and achieving efficient conversion of reactants under sunlight *** date,classic ACM such as kaolinite and montmorillonite,loaded with semi-conductor photocatalysts has been widely applied in *** review summaries the recent works on ACM-based composites in *** on the properties of surface and layered structure,we elucidate the different features in the composition with various functional photocatalysts on two typical kinds of ACM,i.e.,type 1∶1 and type 2∶*** only large surface area and active surface hydroxyl group assist the substrate adsorption,but also the layered structure provides more space to enlarge the application of ACM-based ***,we overview the modifications on ACM from both external surface and the inter-layer space that make the formation of composites more efficiently and boost the photo-chemical *** review could inspire more upcoming design and synthesis for ACM-based photocatalysts,leading this kind of economic and eco-friendly materials for more practical application in the future.

关键词： Aluminosilicate clay mineral Photocatalysis Functional bases Surface activating Interlayered modification Pollutant degradation

Quality of life among women with breast cancer living in Wuhan, China

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International Journal of Nursing Sciences 2014年第1期1卷 79-88页

作者： Zhijie zou Jie hu Thomas PMcCoy HOPE School of Nursing Wuhan UniversityWuhanChina School of Nursing Department of Community Practice NursingUniversity of North CarolinaGreensboroUSA School of Nursing Department of Educational Research MethodologyUniversity of North CarolinaGreensboroUSA

Background:Quality of life is an important indicator in patients with breast *** here reported that the quality of life in patients with breast cancer is low and many factors contribute to this poor quality of ***:To examine the relationships among demographic characteristics,optimism,social support,illness related factors,appraisal of illness,coping strategies and the quality of life of Chinese women with breast cancer residing in Wuhan,***:A convenience sample of 156 Chinese women with breast cancer was recruited from five teaching hospitals in Wuhan,*** completed the Revised Life Orientation Test,the Perceived Social Support Scale,the Symptom Distress Scale,the Appraisal of Illness Scale,the Medical Coping Modes Questionnaire,and the Functional Assessment of Cancer *** analysis was used to examine factors influencing quality of ***:Significant relationships were found between optimism,symptom distress,social support,appraisal of illness,a give-in coping mode and quality of ***,social support,symptom distress,lymph node status,appraisal of illness,and a give-in coping mode accounted for 66.6%of the variance in quality of ***:The findings of this study underscore the importance of helping women reduce symptoms distress,appraise their illness positively,use less negative coping modes,and maintain optimism,maintain good social support,because all of these factors indirectly or directly affect their quality of life.

关键词： Breast cancer Quality of life Optimism Social support Stress and coping Symptom distress

Rapid Growth of TiNi intermetallic compound within undercooled Ti_(50)Ni_(50)alloy under electrostatic levitation condition

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Journal of Materials Science & Technology 2021年第18期77卷 82-89页

作者： P.F.zou C.H.Zheng L.hu H.P.Wang School of Physical Science and Technology Northwestern Polytechnical University.Xi'an710072China

The undercooling dependence of the solidification mechanism was systematically explored by the electrostatic levitation(ESL)*** the experiments,the maximum undercooling reached up to 406 K(0.26 T_L)and the growth velocity of the primary TiNi phase was in-situ determined at various *** the initial increase of alloy undercooling,the value of growth velocity sluggishly rose followed by a power *** this case,the primary TiNi phase preferentially developed as the equiaxed dendrite,then the remnant liquid participated as Ti_(2)Ni andα-Ti phases on the grain *** the undercooling exceeded the critical value of 350 K,the growth velocity of the primary phase displayed a sharply increase ***,the TEM results demonstrated that the precipitation of the intermetallic Ti_(2)Ni compound was gradually restrained during the rapid solidification and the R-phase existing in the TiNi matrix at large undercooling implied that the martensitic transformation was incomplete.

关键词： Undercooling Ti-Ni alloy Solidification Growth kinetics

Expression and regulation of orphan receptor TR2 mRNA in germ cells of cryptorchid testis in rat and rhesus monkey

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Chinese Science Bulletin 2000年第8期45卷 720-725页

作者： GUO Caixia hu Zhaoyuan zou Rujin MU Xiaomin LIU Yixun State Key Laboratory of Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijing 100080China Kunming Institute of Zoology Chinese Academy of Sciences.Kunming 650223China

Expression and cellular localization of orphan receptor TR2 mRNA in relation to germ cell apoptosis in cryptorchid testes of rat and rhesus monkey have been studied by using in situ hybridization and in situ 3’-end labeling of DNA fragments (T躈EL). The results show that: (i) TR2 mRNA is specifically expressed in the germ cells, mainly in the spermatocytes, round and elongated spermatids. The expression level of TR2 mRNA varies with the seminiferous cycle. (ii) in the rat cryptorchid testes on days 3 and 5 after the surgery, the germ cells began to undergo apoptosis with no evident decrease in TR2 mRNA level. On day 7.5, however, most germ cells underwent apoptosis, while the expression level of TR2 mRNA declined markedly, and TR2 mRNA was rarely expressed on day 10 thereafter. (iii) On days 15 and 20 of the cryptorchid testes of rhesus monkey, TR2 mRNA was only expressed in a few of primary spermatocytes and the mRNA was almost undetectable on days 30, 45, 60. These results suggest that TR2 mRNA

关键词： orphan receptor TR2 in situ hybridization cryptorchidism spermatogenesis apoptosis.

Numerical analysis of residence time distribution of solids in a bubbling fluidized bed based on the modified structure-based drag model

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Particuology 2017年第3期15卷 30-38页

作者： Zheng zou Yunlong Zhao hu Zhao Hongzhong Li Qingshan Zhu Zhaohui Xie Yingbo Li State Key Laboratory of Multi-phase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences Belting 100049 China Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences Belting 100190 China

The residence time distribution （RTD） of solids and the fluidized structure of a bubbling fluidized bed were investigated numerically using computational fluid dynamics simulations coupled with the modified structure-based drag model. A general comparison of the simulated results with theoretical values shows reasonable agreement. As the mean residence time is increased, the RTD initial peak intensity decreases and the RTD curve tail extends farther. Numerous small peaks on the RTD curve are induced by the back- mixing and aggregation of particles, which attests to the non-uniform flow structure of the bubbling fluidized bed. The low value of t50 results in poor contact between phases, and the complete exit age of the overflow particles is much longer for back-mixed solids and those caught in dead regions. The formation of a gulf-stream flow and back-mixing for solids induces an even wider spread of RTD.

关键词： FluidizationResidence time distribution Bubbling fiuidized bed Modified structure-based drag mode Computational fluid dynamics CFD

Elevating mitochondrial reactive oxygen species by mitochondria-targeted inhibition of superoxide dismutase with a mesoporous silica nanocarrier for cancer therapy

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Nano Research 2014年第8期7卷 1103-1115页

作者： Yi Zhang Zhengyan hu Guiju Xu Chuanzhou Gao Ren'an Wu Hanfa zou Key Lab of Separation Sciences for Analytical Chemistry National Chromatographic R&A Center Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China University of Chinese Academy of Sciences Beijing 100049 China Institute of CancerStem Cell Dalian Medical University Dalian 116044 China

In the intrinsic pathway of apoptosis, stresses of mitochondrial reactive oxygen species （mitoROS） might be sensed as more effective signals than those in cytosol, as mitochondria are the major sources of reactive oxygen species （ROS） and pivotal components during cell apoptosis. Mitochondrial superoxide dismutase （SOD2） takes the leading role in eliminating mitoROS, and inhibition of SOD2 might induce severe disturbances overwhelming the mitochondrial oxidative equilibrium, which would elevate the intracellular oxidative stresses and drive cells to death. Herein, we report a general strategy to kill cancer cells by targeted inhibition of SOD2 using 2-methoxyestradiol （2-ME, an inhibitor for the SOD family） via a robust mitochondria-targeted mesoporous silica nanocarrier （mtMSN）, with the expected elevation of mitoROS and activation of apoptosis in HeLa cells. Fe304@MSN was employed in the mitochondria-targeted drug delivery and selective inhibition of mitochondrial enzymes, and was shown to be stable with good biocompatibility and high loading capacity. Due to the selective inhibition of SOD2 by 2-ME/mtMSN, enhanced elevation of mitoROS （132% of that with free 2-ME） was obtained, coupled with higher efficiency in initiating cell apoptosis （395% of that with free 2-ME in 4 h）. Finally, the 2-ME/mtMSN exhibited powerful efficacy in targeted killing of HeLa cells by taking advantage of both biological recognition and magnetic guiding, causing 97.0% cell death with only 2 Dg/mL 2-ME/mtMSN, hinting at its great potential in cancer therapy through manipulation of the delicate mitochondrial oxidative balance.

关键词： mitochondria reactive oxygen species apoptosis mesoporous silicananoparticles drug delivery

Study on Wall Temperature Distribution of Oscillating Tube

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Journal of Thermal Science 2009年第3期18卷 246-252页

作者： dapeng hu Peiqi LIU Wenjing ZHAO Che Zhu Yudong WANG Yuqiang daI Jiupeng zou Institute of Chemical Engineering Dalian University of Technology Dalian 116012 Liaoning China Xin Jiang Xin Jie co. Ltd Wulumuqi 830011 Xinjiang China

The wall temperature distribution and heat transfer process of the oscillating tube have been investigated in thispaper using both numerical simulation and experimental method. The wall temperature of oscillating tube increasesrapidly in the inlet and then decreases slowly, moreover, the rally phenomenon of wall temperature nearthe closed end is observed. With the increase of jet flow frequency, the highest wall temperature increases and thelocation of that moves towards the inlet. The velocity of pressure wave in the oscillating tube almost remainsconstant even its intensity changes. The quantity of heat transfer between the gas and inner wall of the oscillatingtube determines the wall temperature of every location, and the pressure wave disturbance can cause the heattransfer quantity change. Each pressure wave has its own disturbance range. The wall temperature distribution canbe explained by the change of pressure wave intensity and its disturbance time. Besides, the step and rally of walltemperature are discussed, which shows that the conditions of heat transfer can be improved due to intersection orreflection of pressure waves.

关键词： thermal separator oscillating tube pressure wave numerical simulation.

Simulation Study on the Heat Transfer Characteristics of a Spray-Cooled Single-Pipe Cooling Tower

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Fluid Dynamics & Materials Processing 2024年第9期20卷 2109-2126页

作者： Kaiyong hu Zhaoyi Chen Yunqing hu huan Sun Zhili Sun Tonghua zou Jinghong Ning Tianjin Key Lab of Refrigeration Technology Department of Refrigeration and Low Temperature EngineeringTianjin University of CommerceTianjin300134China Jiangsu Yongzhiyu Technology Development Co. Ltd.Xuzhou221700China Shandong Onar Refrigeration Technology Co. Ltd.Binzhou256600China

The current study focuses on spray cooling applied to the heat exchange components of a cooling *** optimization of such processes is attempted by assessing different spray flow rates and droplet *** simplicity,the heat exchanger of the cooling tower is modeled as a horizontal round tube and a cooling tower spray cooling model is developed accordingly using a computational fluid dynamics(CFD)*** study examines the influence of varying spray flow rates and droplet sizes on the heat flow intensity between the liquid layer on the surface of the cylindrical tube and the surrounding air,taking into account the number of *** is observed that on increasing the spray flow strength,the heat flow intensity and extent of the liquid film in the system are enhanced ***,the magnitude of droplet size significantly impacts heat transfer.A larger droplet size decreases evaporation in the air and enhances the deposition of droplets on the round *** facilitates the creation of the liquid film and enhances the passage of heat between the liquid film and *** the number of nozzles,while maintaining a constant spray flow rate,results in a decrease in the flow rate of each individual *** decrease is not favorable in terms of heat transfer.

关键词： Spray cooling droplet sizes number of nozzles CFD

HPLC Fingerprint - Antioxidant Properties Study of Buckwheat

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Journal of Integrative Agriculture 2012年第7期11卷 1111-1118页

作者： ZHAO Gang PENG Lian-xin WANG Shu hu Yi-bing zou Liang College of Biotechnology Industly Chengdu UniversityChengdu 610106P.R.China

For quality control of buckwheat, fingerprint-efficacy study of buckwheat was carried out in this work. 2,2＇-Bipyridyl,2,2- diphenyl-l-picrylhydrazyl radical （DPPH） scavenging activity of the buckwheat was measured using UV spectrometer. Chemical fingerprints of tartary buckwheat from 29 different sources were determined by HPLC-UV and investigated by similarity analysis and hierarchical clustering analysis. The fingerprint-efficacy relationship between chemical fingerprint and DPPH radical scavenging activity of tartary buckwheat were established by multi-linear regression analysis. The results showed that the sources of buckwheat had some important influence on the chemical fingerprints and DPPH radical scavenging activity. DPPH radical scavenging activity of tartary buckwheat was stronger than that of common buckwheat, rutin, and kaempferol and some unknown compound might be the major effective components for quality control of tartary buckwheat for its antioxidant activity.

关键词： buckwheat chemical fingerprint antioxidant DPPH