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Advances in research on solid-state fermented feed and its utilization:The pioneer of private customization for intestinal microorganisms

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Animal Nutrition 2021年第4期7卷 905-916页

作者： Lijie Yang Xiangfang zeng Shiyan Qiao State Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural UniversityYuanmingyuan West Road 2Haidian DistrictBeijingChina Beijing Biofeed Additives Key Laboratory BeijingChina

With sustainable development of biotechnology,increasing attention has been placed on utilization of solid-state fermented feed(SFF).Solid-state fermented feed has been a candidate strategy to alleviate the contradiction between supply and demand of feed resources,ensure food hygiene safety,promoting energy conservation,and emission *** production of SFF,a variety of organic acids,enzymes,vitamins,peptides,and other unknown growth factors are produced,which could affect performance of ***-state fermented feed produced by different fermentation techniques has great instability on different physiological stages of different animals,which hinders the application and standardized production of ***,we summarize the current advances in the role of the characteristics of SFF prepared by different manufacturing technique and its research progress in animal experiments on growth performance,gastrointestinal ecology,and immune system,so as to provide references for further acquiring a relatively perfect set of SFF production and evaluation systems.

关键词： Solid-state fermented feed Manufacturing technique Growth performance Gastrointestinal ecology Immune system

基于DEMATEL-ISM的W市高速公路改扩建工程风险因素研究

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价值工程 2024年第1期43卷 9-11页

作者：曾继辉何峰新疆农业大学乌鲁木齐830000

本项目探究的是W市高速公路改扩建工程,具体建设内容为新修建桥梁,匝道变更优化。为加强W市高速工路改扩建项目的风险管理,探究该工程施工阶段风险因素之间的关系,通过采用文献研究法、调研法、WBS-RBS法将项目的作业分解,将风险源按人... 详细信息

本项目探究的是W市高速公路改扩建工程,具体建设内容为新修建桥梁,匝道变更优化。为加强W市高速工路改扩建项目的风险管理,探究该工程施工阶段风险因素之间的关系,通过采用文献研究法、调研法、WBS-RBS法将项目的作业分解,将风险源按人员风险、材料机械设备风险、技术风险、环境风险及管理风险进行分类,再经过RBM风险矩阵的耦合后列举出风险清单。风险评估阶段采取DEMATEL-ISM两种方法模型联用进行风险因素关系的研究,得出影响度、中心度、原因度等指标,分析该项目中各风险因素之间的关系。得出施工质量缺陷、机械设备损坏或故障、施工现场管理不当等要素是W市高速工路改扩建项目中最核心的风险因素。

关键词：高速公路改扩建风险因素风险评估 DEMATEL-ISM模型

Improved delay-dependent stability criteria for systems with interval delay

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Journal of Systems Engineering and Electronics 2011年第6期22卷 998-1002页

作者： Hongbing zeng Shenping Xiao Bin Liu School of Electrical and Information Engineering Hunan University of Technology Zhuzhou 412008 R R. China School of Information Science and Engineering Central South University Changsha 410083 E R. China Department of Information Engineering Australian National University Canberra ACT0200 Australia

This paper deals with the problem of stability for systems with delay varying in an interval.A new Lyapunov functional,which makes use of the information of both the lower and upper bounds of the interval time-varying delay,is proposed to derive some new stability ***,the relationship of the time-varying delay and its lower bound and upper bound is taken into *** a result,some less conservative delay-dependent stability criteria are obtained without ignoring any useful information in the derivative of Lyapunov functional,which are established in the forms of linear matrix *** examples are provided to show that the obtained results are better than existing ones.

关键词： stability criteria interval delay delay-dependent linear matrix inequality(LMI).

X-RAY POWDER DIFFRACTION DATA AND STRUCTURE REFINEMENT OF COMPOUND ErNi_2Si_2

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中国有色金属学会会刊：英文版 1998年第4期8卷 91-94页

作者： Yan, JL Ou, XL zeng, LM Guangxi Univ Inst Mat Sci Nanning 530004 Peoples R China Tianjin Elect Mat Res Inst Tianjin 300192 Peoples R China

１ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｒａｒｅｅａｒｔｈｃｏｍｐｏｕｎｄｓＲＥＴ２Ｓｉ２，ｗｈｅｒｅＲＥｉｓａｒａｒｅｅａｒｔｈｅｌｅｍｅｎｔａｎｄＴｉｓａｔｒａｎｓｉｔｉｏｎｍｅｔａｌｅｌｅｍｅｎｔ，ｈａｖｅｂｅｅｎｓｔ... 详细信息

１ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｒａｒｅｅａｒｔｈｃｏｍｐｏｕｎｄｓＲＥＴ２Ｓｉ２，ｗｈｅｒｅＲＥｉｓａｒａｒｅｅａｒｔｈｅｌｅｍｅｎｔａｎｄＴｉｓａｔｒａｎｓｉｔｉｏｎｍｅｔａｌｅｌｅｍｅｎｔ，ｈａｖｅｂｅｅｎｓｔｕｄｉｅｄｗｉｔｈｇｒｅａｔｉｎ?..

关键词： ErNi 2Si 2 X ray powder diffraction Rietveld structure refinement

Calculation of Thermodynamic Properties from Phase Diagram of the Pb-Zn System

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Journal of Materials Science & Technology 1997年第3期13卷 233-234页

作者： zeng, WM Chen, NY Qiu, GF Shanghai Institute of Metallurgy Chinese Academy of Sciences Shanghai 200050 China

The formulas for obtaining the interaction parameters of the liquid solution were first deduced from the immiscible phase diagram of binary system. Then, the relationships between activity coefficients and interaction parameters of the binary system were also deduced. Finally, thermodynamic properties of the Pb-Zn system were calculated by using these formulas.

关键词： Lead alloys

Deposition rate and morphology of carbon nanotubes at different positions in a CVD reactor

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Rare Metals 2008年第6期27卷 637-641页

作者： zeng Daxin Maxime Genestoux BAI Jinbo Laboratory of Mechanics of Soils Structures and Materials CNRS UMR 8579 Ecole Central Paris 92295 Chatenay-Malabry France Department of Materials Engineering Hubei Automotive Industries Institute Shiyan 442002 China

Carbon nanotubes （CNTs） were synthesized through the catalytic decomposition of a ferrocene-xylene mixture in a horizontal chemical vapor deposition reactor. The deposition rate of CNTs along the axial direction was measured. The morphology of CNTs was observed by scanning electron microscopy （SEM） and transmission electron microscopy （TEM）. The results showed that the deposition rate of CNTs along the axial direction first increased and later decreased, the position achieving the maximum deposition rate was influenced by the operating conditions. The morphologies of CNTs also changed along the axial direction.

关键词： carbon nanotubes deposition rate distribution chemical vapor deposition microstructure

玻璃掺杂及烧结工艺对BCZT压电陶瓷的影响

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中国陶瓷 2024年第2期60卷 20-27,35页

作者：周源曾梦诗曹丽嘉余洪滔西南科技大学材料与化学学院绵阳621010

采用传统的固相反应法制备了(Ba_(0.85)Ca_(0.15))(Ti_(0.9)Zr_(0.1))O_(3)(BCZT)以及掺杂Al-Mg-Ca玻璃粉的BCZT无铅压电陶瓷。首先研究了预烧温度对BCZT陶瓷粉体的影响,其次研究了掺杂Al-Mg-Ca玻璃粉对BCZT无铅压电陶瓷的烧结性能、介... 详细信息

采用传统的固相反应法制备了(Ba_(0.85)Ca_(0.15))(Ti_(0.9)Zr_(0.1))O_(3)(BCZT)以及掺杂Al-Mg-Ca玻璃粉的BCZT无铅压电陶瓷。首先研究了预烧温度对BCZT陶瓷粉体的影响,其次研究了掺杂Al-Mg-Ca玻璃粉对BCZT无铅压电陶瓷的烧结性能、介电性能和压电性能的影响。最后通过正交试验确定了其烧结工艺。结果显示BCZT粉体的最佳预烧温度在1100℃。掺杂Al-Mg-Ca玻璃粉能够有效降低BCZT陶瓷的烧结温度。通过烧结工艺正交实验获得了最佳烧结工艺:1100℃预烧,1350℃烧结,升温速度为2℃/min,保温时间为7 h,在110 min降温至800℃。验证正交试验所得到的结果是掺杂Al-Mg-Ca玻璃粉的BCZT陶瓷的居里温度点的介电常数为12228,压电常数d_(33)为425 p C/N。

关键词：无铅压电陶瓷锆钛酸钡钙(BCZT) 正交试验压电性能

Preparation of micro-arc oxidation coatings on magnesium alloy and its thermal shock resistance property

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Rare Metals 2006年第3期25卷 270-273页

作者： JIANG Zhaohua zeng Xiaobin YAO Zhongping Department of Applied Chemistry Harbin Institute of Technology Harbin 150001 China

In the NaAlO2-Na2SiO3 compound system, the ceramic coatings were prepared on magnesium alloy by micro-arc oxidation. The morphology, phase composition, and thermal shock resistance of the ceramic coatings were studied by scanning electron microscope, X-ray diffraction and thermal shock tests, respectively. The results showed that the ceramic coating contains MgO, MgAl2O4, as well as a little amount of MgESiO4. The thickness of the ceramic coatings increases with the current density increasing, when the current density is 12 A·dm^-2, the thermal shock resistance of the produced ceramic coating is the best. The hardness of the ceramic coating is up to 10 GPa or so.

关键词： micro-arc oxidation ceramic coatings thermal shock resistance magnesium alloy

Recent progress in the molecular imaging of therapeutic monoclonal antibodies

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Journal of Pharmaceutical Analysis 2020年第5期10卷 397-413页

作者： Kaifeng He Su zeng Linghui Qian Institute of Drug Metabolism and Pharmaceutical Analysis Zhejiang Province Key Laboratory of Anti-Cancer Drug ResearchCollege of Pharmaceutical SciencesZhejiang UniversityHangzhou310058China

Therapeutic monoclonal antibodies have become one of the central components of the healthcare system and continuous efforts are made to bring innovative antibody therapeutics to patients in *** is equally critical to acquire sufficient knowledge of their molecular structure and biological functions to ensure the efficacy and safety by incorporating new detection approaches since new challenges like individual differences and resistance are *** techniques for determining antibody disposition including plasma drug concentration measurements using LC-MS or ELISA,and tissue distribution using immunohistochemistry and immunofluorescence are now complemented with molecular imaging modalities like positron emission tomography and near-infrared fluorescence imaging to obtain more dynamic information,while methods for characterization of antibody’s interaction with the target antigen as well as visualization of its cellular and intercellular behavior are still under *** progress in detecting therapeutic antibodies,in particular,the development of methods suitable for illustrating the molecular dynamics,is described here.

关键词： Therapeutic monoclonal antibodies Molecular structure Biological function Molecular imaging