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Acta Pharmaceutica Sinica B 2015年第3期5卷 201-209页

作者： zhi jiang Huiqiang Wang Yanping Li Zonggen Peng Yuhuan Li Zhuorong Li Institute of Medicinal Biotechnology Chinese Academy of Medical Sciences and Peking Union Medical College

A series of novel N-phenylbenzamide and N-phenylacetophenone compounds were synthesized and evaluated for their antiviral activity against HCV and EV71(strain SZ-98).The biological results showed that three compounds(23,25 and 41) exhibited considerable anti-HCV activity(IC50? 0.57–7.12 μmol/L) and several compounds(23,28,29,30,31 and 42) displayed potent activity against EV71 with the IC50 values lower than 5.00 μmol/*** potency of compound 23(IC50? 0.57 μmol/L) was superior to that of reported compounds IMB-1f(IC50? 1.90 μmol/L) and IMB-1g(IC50? 1.00 μmol/L) as anti-HCV agents,and compound29 possessed the highest anti-EV71 activity,comparable to the comparator drug *** efficacy in vivo and antiviral mechanism of these compounds warrant further investigations.

关键词： Synthesis N-phenylbenzamide N-phenylacetophenone Anti-HCV Anti-EV71 Agents

Prediction Technology of Buried Water-Bearing Structures in Coal Mines Using Transient Electromagnetic Method

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Journal of China University of Mining and Technology 2007年第2期17卷 164-167页

作者： jiang zhi-hai YUE Jian-hua LIU Shu-cai School of Resource and Earth Science China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China

Buried water-conducting and water-bearing structures in front of the driving head may easily lead to water bursts in coal mines. Therefore,it is very important for the safety of production to make an accurate and timely forecast about water bursts. Based on the smoke ring effect of transient electromagnetic fields,the principle of transient electro-magnetic method used in detecting buried water-bearing structures in coal mines in advance,is discussed. Small multi-turn loop configurations used in coal mines are proposed and a field procedure of semicircular sector scanning is presented. The application of this method in one coal mine indicates that the technology has many advantages compared with others. The method is inexpensive,highly accurate and efficient. Suggestions are presented for future solutions to some remaining problems.

关键词： mine transient electromagnetic method advance detection water-bearing structure small multi-turn loop sector scanning

Atomic Force Microscopy Studies on the Chemical Treatment of Nanocrystalline Porous TiO_2 Films

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Chinese Chemical Letters 2002年第5期13卷 484-486页

作者： Yuan LIN Feng zhi jiang Jing Bo ZHANG Yan Lin SONG Lei jiang Xu Rui XIAO Center for Molecular Science Institute of ChemistryChinese Academy of SciencesBeijing 100080

AFM has been utilized to study the surface topography and the local conductivity of nanocrystalline TiO2 films. Improving the local conductivity by Ti(iso-C3H7O)4 treatment is characterized by quantitative analysis o... 详细信息

关键词： Nanocrystalline TiO2 films chemical treatments AFM topography local conductivity.

A high precision visual localization sensor and its working methodology for an indoor mobile robot

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Frontiers of Information Technology & Electronic Engineering 2016年第4期17卷 365-374页

作者： Feng-yu ZHOU Xian-feng YUAN Yang YANG zhi-fei jiang Chen-lei ZHOU School of Control Science and Engineering Shandong University School of Information Science and Engineering Shandong University

To overcome the shortcomings of existing robot localization sensors, such as low accuracy and poor robustness, a high precision visual localization system based on infrared-reflective artificial markers is designed and illustrated in detail in this paper. First, the hardware system of the localization sensor is developed. Secondly, we design a novel kind of infrared-reflective artificial marker whose characteristics can be extracted by the acquisition and processing of the infrared image. In addition, a confidence calculation method for marker identification is proposed to obtain the probabilistic localization results. Finally, the autonomous localization of the robot is achieved by calculating the relative pose relation between the robot and the artificial marker based on the perspective-3-point(P3P) visual localization algorithm. Numerous experiments and practical applications show that the designed localization sensor system is immune to the interferences of the illumination and observation angle changes. The precision of the sensor is ±1.94 cm for position localization and ±1.64° for angle localization. Therefore, it satisfies perfectly the requirements of localization precision for an indoor mobile robot.

关键词： Mobile robot Localization sensor Visual localization Infrared-reflective marker Embedded system

Experimental evaluation of the effect of an internal heat exchanger on a transcritical CO_2 ejector system

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第2期12卷 146-153页

作者： Xiao-xiao XU Guang-ming CHEN Li-ming TANG zhi-jiang ZHU Shuang LIU Institute of Refrigeration and Cryogenics State Key Laboratory of Clean Energy Utilization Zhejiang University Hangzhou 310027 China

This study presents experimental results focused on a performance comparison of a transcritical CO2 ejector system without an internal heat exchanger(IHX) (EJE-S) to a transcritical CO2 ejector system with an IHX(EJE-IHX-S) . The comparison includes the effects of changes in operating conditions such as cooling water flow rate and inlet temperature. Experiments are conducted to assess the influence of the IHX on the heating coefficient of performance(COPr) ,heating capacity,entrainment ratio,pressure lift,and other parameters. The primary flow rate of the EJE-IHX-S is higher than that of the EJE-S. The pressure lift and actual ejector work recovery are reduced when the IHX is added to the transcritical CO2 ejector system. Using a more practical performance calculation,the compression ratio in the EJE-S is reduced by 10.0%-12.1%,while that of EJE-IHX-S is reduced only by 5.6%-6.7% compared to that of a conventional transcritical CO2 system. Experimental results are used to validate the findings that the IHX weakens the contribution of the ejector to the system performance.

关键词： CO2 ejector system Transcritical cycle Heating coefficient of performance (COPr)

Consuming fermented distillers＇ dried grains with solubles (DDGS) feed reveals a shift in the faecal microbiota of growing and fattening pigs using 454 pyrosequencing

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Journal of Integrative Agriculture 2017年第4期16卷 900-910页

作者： WANG Jin HAN Ye ZHAO Jin-zhao ZHOU zhi-jiang FAN Huan School of Chemical Engineering and Technology Tianjin University Tianjin 300072 P.R.China Tianjin Kuntai Environment & Energy Science and Technology Development Co. Ltd. Tianjin 300191 P.R. China Tianjin Animal Science and Veterinary Research Institute Tianjin 300381 P.R.China Key Laboratory of Systems Bioengineering Ministry of Education Tianjin 300072 P.R China

The objective of this study was to investigate pig fed by Bacillus coagulans-fermented distillers＇ dried grains with solubles （DDGS） on the faecal microbial composition and diversity using 454 pyrosequencing. Healthy crossbred （Durocx Yorkshirex Landrace） growing and fattening pigs （n=48）, with an average initial body weight of 65 kg, were divided into two groups （24 replicates per group; four pens per group; six pigs per pen）, and given either DDGS feed as the control, or B. coagulans-fermented DDGS feed as the treatment. Faecal samples were collected on day 0, 7, 14, 21, and 28. DNA was extracted, and the V3-V6 region of the 16S rRNA gene was amplified. The fermented DDGS feed affected the relative abundance of bacteria populations at the phylum, genus, and species levels. At the genus level, the consumption of fermented DDGS feed led to higher relative abundances of faecal Prevotella, Lactobacillus, Clostridium, Bifidobacterium, Roseburia, and Bacillus, and lower relative abundances of faecal Escherichia, Ruminococcus, Dialister, unclassified Lachnospiraceae, unclassified Ruminococcaceae, and unclassified Enterobacteriaceae than in the control. At the species level, the consumption of fermented DDGS feed led to higher relative abundances of faecal Prevotella sp., Lactobacillus johnsonii, Lactobacillus fermentum, Lactobacillus mucosae, Lactobacillus reuteri, Clostridium butyricum, Bifidobacterium sp., and Roseburia sp., and lower relative abundances of faecal Prevotella copri, Escherichia coil, Ruminococcus gnavus, Ruminococcus flavefaciens, and Dialister sp. than in the control. Principal coordinates analysis indicated a distinct separation in the faecal microbial communities of pigs that were fed the fermented and unfermented DDGS feed. Fermented DDGS feed significantly increased the average daily gain （ADG） of pigs, and significantly decreased the average daily feed intake （ADFI） of feed and feed/gain （F/G）. Thus, our results demonstrate a beneficial shift in t

关键词： faecal microbiota growing and fattening pigs pyrosequencing fermented DDGS feed

Impact of Methanol Photomediated Surface Defects on Photocatalytic H2 Production Over Pt/TiO2

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Energy & Environmental Materials 2020年第2期3卷 202-208页

作者： zhi jiang Rongjie Qi Zhengwen Huang Wenfeng Shanggguan Roong Jien Wong Adam Lee Research Center for Combustion and Environment Technology Shanghai Jiao Tong UniversityShanghai 200240China Center of Hydrogen Science Shanghai Jiao Tong UniversityShanghai 200240China School of Science RMIT UniversityMelbourne Vic.3000Australia

Co-catalysts play a critical role in enhancing the efficiency of inorganic semiconductor photocatalysts;however,synthetic approaches to tailoring cocatalyst properties are rarely the focus of research efforts.A photomediated route to control the dispersion and oxidation state of a platinum(Pt)cocatalyst through defect generation in the P25 titania photocatalyst substrate is *** photoirradiation in the presence of methanol induces longlived surface defects which subsequently promote the photodeposition of highly dispersed(2.2±0.8 nm)and heavily reduced Pt nanoparticles on exposure to H2 *** optimal methanol concentration of 20 vol%produces the highest density of metallic Pt *** activity for water splitting and associated hydrogen(H2)production under UV irradiation mirrors the methanol concentration employed during the P25 photoirradiation pretreatment and resulting Pt loading resulting in a common mass-normalized H2 productivity of 3800±130 mmol gpt-1 *** surface defects(arising in the presence of a methanol hole scavenger)provide electron traps that regulate subsequent photodeposition of a Pt co-catalyst over P25,offering a facile route to tune photocatalytic efficiency.

关键词： methanol platinum surface defects titanium

Electrochemical property of LiFePO4/C composite cathode with different carbon sources

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Rare Metals 2018年第9期37卷 743-749页

作者： Xin Li Yu zhi jiang Xi Kun Li Hai Xia jiang Jun Long Liu Jun Feng Shi Bin Lin Xin Guan Shenyang Ligong University Shenyang 110159 China

To improve the performance of battery cathode materials that consist of carbonaceous organic material, carbon coatings on lithium iron phosphate （LiFePO4/C） materials were synthesized by different carbon sources. LiFePO4/C was synthesized by a combination method of sol-gel and gas-phase diffused permeation. LiFeO4/C materials were prepared by coating different carbon con- tents. High-performance composite materials were pre- pared by combining carbon with element doped by two modified methods. The elements of Fe and C came from Fe3＋ and sucrose, glucose, citric acid. Thermogravimetry- differential thermal analysis （TG-DTA）, X-ray diffrac- tometer （XRD）, scanning electron microscope （SEM）, cycle voltammetry （CV）, and charge-discharge test were used to characterize and test the surface morphology, structure, and electrochemical performance. The results show that LiFePO4/C synthesized with sucrose has higher specific discharge capacity than the other materials. The specific discharge capacity of this material is 84.27 mAh.g-1. The capacity retention could attain 94 % of the initial discharge capacity after 30 cycles, showing good electrochemical performance.

关键词： Solgel Gas-phase diffused permeation LiFePO4/C Sucrose Citric acid

Comparison of very-high-frequency ultrasound assessment of radial arterial wall layers after first and repeated transradial coronary procedures

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Journal of Geriatric Cardiology 2017年第4期14卷 245-253页

作者： Bei-Bei ZHANG Yu-Jie ZHOU Jie DU Shi-Wei YANG zhi-jiang WANG Hua SHEN zhi-Ming ZHOU Bering Anzhen Hospital Capital Medical University Beijing Institute of Heart Lung and Blood Vessel Disease Beijing China

Background Transradial coronary procedure （TRP） traumatizes the radial artery （RA）, especially resulting in changes to arterial wall morphology. This study explored the significance of the early onset of traumatic effects to wall layers of the RA following the first TRP （FTRP） and repeat TRP （RTRP） using very-high-frequency ultrabiomicroscopy （VHFUBM）. Methods A total of 1431 patients that re- ceived TRP were divided into the FTRP group that comprised 781 patients and the RTRP group that comprised 650 patients depending on the number of procedures. Two-dimensional RA images were acquired by 30-55 MHz ultrasound one day before and one day after the pro- cedure. Results After TRP, the incidence of intimal tears, medial dissections and external elastic lamina fracture were greater in the RTRP （P 〈 0.001）. The RTRP group showed significantly thicker intimal thickness （IT）, media thickness （MT）, adventitia thickness and all complex layer thicknesses as compared with the FTRP group （P 〈 0.001）. Conclusions Multivariate linear regression analysis discovered that repeated TRP and other observations were independent predictors of increased IT in post-operative RA. VHFUBM provides an approach to study structural and histopathological injury in the wall layers of RA which showed increased trauma to the RA following RTRP.

关键词： Radial arterial wall morphology Transradial procedure Very-high-frequency ultrabiomicroscopy

Nonempirical hybrid multi-attribute decision-making method for design for remanufacturing

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Advances in Manufacturing 2019年第4期7卷 423-437页

作者： Qing-Shan Gong Hua Zhang zhi-Gang jiang Han Wang Yan Wang Xiao-Li Hu Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering Wuhan University of Science&TechnologyWuhan 430081People's Republic of China Key Laboratory of Automotive Power Train and Electronics Hubei University of Automotive TechnologyShiyan 442002HubeiPeople's Republic of China Key Laboratory of Metallurgical Equipment and Control Technology Wuhan University of Science&TechnologyWuhan 430081People's Republic of China School of Computing Engineering and MathematicsUniversity of BrightonBrighton BN24GJUK School of Mechanical Engineering Shanghai Dianji UniversityShanghai 201306People's Republic of China

Design for remanufacturing(DfRem)is the process of considering remanufacturing characteristics during product design in order to reduce the number of issues during the remanufacturing *** decisionmaking in DfRem is influenced by the designers'subjective preferences owing to a lack of explicitly defined remanufacturing knowledge for designers,which can lead to indecisive design *** order to objectively select the optimal design scheme for remanufacturing,a nonempirical hybrid multi-attribute decision-making method is presented to alleviate the impacts of subjective *** this method,design characteristics and demand information are characterized through the matter-element *** with design principles,some initial design schemes are *** criteria are established considering the technical,economic,and environmental *** entropy weight and vague set are used to determine the optimal design scheme via a multi-attribute decision・making *** design of a bearing assembly machine for remanufacturing is taken as an example to illustrate the practicality and validity of the proposed *** results revealed that the proposed method was effective in the decision-making of DfRem.

关键词： Design for remanufacturing(DfRem) Remanufacturing Multi-attribute decision-making Vague set Entropy weight