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食品科技 2011年第4期36卷 257-259,265页

作者：李俶王芳李积华刘成梅农业部热带作物产品加工重点开发实验室湛江524001 南昌大学中德食品工程中心南昌330047 宁夏大学农学院银川750021

对菠萝皮渣中的营养成分及K、P、Mg、Ca、Mn、Fe、Zn、Na、Al、Cu、Ni、Co等矿质元素的含量进行了分析,结果表明:菠萝皮渣中含有丰富的矿质元素、总糖、粗纤维等多种营养成分。菠萝皮渣中不但含有人体所需的P、K、Ca、Mg、Na等常量元素... 详细信息

对菠萝皮渣中的营养成分及K、P、Mg、Ca、Mn、Fe、Zn、Na、Al、Cu、Ni、Co等矿质元素的含量进行了分析,结果表明:菠萝皮渣中含有丰富的矿质元素、总糖、粗纤维等多种营养成分。菠萝皮渣中不但含有人体所需的P、K、Ca、Mg、Na等常量元素,而且还含有Cu、Zn、Fe、Ni、Mn、Co等人体必需的微量元素。K元素含量最高,P、Mg次之,为进一步研究菠萝皮渣的利用价值提供了依据。

关键词：菠萝营养成分矿质元素

施肥对南果梨树叶片叶绿素含量、抗氧化酶活性及膜脂过氧化程度的影响

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土壤通报 2011年第6期42卷 1399-1403页

作者：王春枝陶姝宇齐宝利方传龙滕丽萍沈阳农业大学土地与环境学院辽宁沈阳110866 鞍山市千山区农业技术推广中心辽宁鞍山114041 鞍山市千山区园林绿化所辽宁鞍山114041

通过测定不同施肥处理对南果梨树叶片中叶绿素含量、过氧化物酶活性及丙二醛含量等指标,比较施肥后不同时期、不同叶位的生理指标变化,探讨施肥对果树叶片抗氧化和膜脂过氧化程度的影响,为维持叶绿素的稳定提供理论依据。结果表明:果树... 详细信息

通过测定不同施肥处理对南果梨树叶片中叶绿素含量、过氧化物酶活性及丙二醛含量等指标,比较施肥后不同时期、不同叶位的生理指标变化,探讨施肥对果树叶片抗氧化和膜脂过氧化程度的影响,为维持叶绿素的稳定提供理论依据。结果表明:果树叶片的叶绿素含量与过氧化物酶活性呈极显著正相关关系,与丙二醛含量呈显著负相关关系。叶绿素含量和过氧化物酶活性随着氮肥用量的增加、磷肥用量的减少呈增高趋势,随着钾肥用量的增加呈先升高后降低趋势;丙二醛含量随着氮、钾肥用量的增加呈降低趋势,随着磷肥用量的增加呈现先降低后升高趋势。适宜用量有助于提高南果梨树叶片叶绿素含量、抗氧化酶系统的抗氧化能力、抗逆境性能。

关键词：南果梨叶片过氧化物酶叶绿素丙二醛

<正>The Calculations of γ-Production Data of n+89Y Reactions in the Incident Neutron Energy Region from 0.1 to 20 MeV

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中国核科技报告 1995年第S1期 14-22页

作者： Liu Jianfeng ( Department of Physics, Zhengzhou university, Zhengzhou )Liu Tingjin ( china Nuclear Data center, CIAE )

The theoretical calculation of the nuclear reaction data for n+89Y is very important. It not only provides the indispensable nuclear reaction data for nuclear engineering but also has important theoretical significance. On the one hand89Y is a neutron magic-number nucleus and located in the 3P giant resonance region of the neutron strength functions, i. e., the 3P state energy levels of the neutrons are located nearby the neutron binding energy and the 2d state en

关键词： The Calculations of Production Data of n Y Reactions in the Incident Neutron Energy Region from 0.1 to 20 MeV

Highly sensitive and selective chemosensor for Cu～(2+) detection based on a N-propargyl rhodamine 6G-hydrazide derivative

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science china Chemistry 2012年第4期55卷 626-631页

作者： MA Xing1,2,LIU Jun1,DU YuGuo1,2,WEI GuoHua1 & WEI DongBin1 1State Key Laboratory of Environmental Chemistry and Ecotoxicology Research center for Eco-Environmental sciences,Chinese Academy of sciences,Beijing 100085,china 2College of Chemistry and Chemical Engineering,Graduate university of Chinese Academy of sciences,Beijing 100049,china State Key Laboratory of Environmental Chemistry and Ecotoxicology Research center for Eco-Environmental sciences Chinese Academy of Sciences Beijing China College of Chemistry and Chemical Engineering Graduate University of Chinese Academy of Sciences Beijing China

A novel fluorescence ＂turnon＂ probe for CH^2＋ detection has been designed based on a Cu^2＋ triggered spirolactam ringopening reaction. The synthetic probe is a doubleresponsive fluorescent and colorimetric Cu^2＋specific sensor. In aqueous solution, it exhibits high selectivity and excellent sensitivity. With a significant color change visible to the naked eye at the concentration of 3 *** （ca. 0.19 mg/L）, about one magnitude lower than the WHO （World Health Organization） recommended level （2.0 mg/L） for Cu^2＋ions in drinking water, the probe could be used to monitor Cu^2＋ ions in drinking water.

关键词： copper – fluorescent chemosensor – chromogenic probe – rhodamine

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基于结构-运动特性矩阵的加工中心运动仿真

天津大学学报（自然科学与工程技术版） 2001年第6期34卷 779-782页

作者：李吉平张文铭刘华明黄田天津大学机械工程学院天津中环三津有限公司哈尔滨工业大学

在分析加工中心几何结构特点及运动特性的基础上 ,提出一种基于微机的实现加工中心运动仿真的方法 .该方法以二叉有向构造图和结构 -运动特性矩阵等概念为理论框架 ,突出特点是将加工中心的几何结构信息和运动方式信息统一在一个矩阵中 ... 详细信息

在分析加工中心几何结构特点及运动特性的基础上 ,提出一种基于微机的实现加工中心运动仿真的方法 .该方法以二叉有向构造图和结构 -运动特性矩阵等概念为理论框架 ,突出特点是将加工中心的几何结构信息和运动方式信息统一在一个矩阵中 ,方便了运动仿真算法对数据的处理 .此外 ,还举例说明了该方法在 NC验证领域的应用 .

关键词：加工中心二叉有向构造图结构-运动特性矩阵运动仿真 NC验证数控加工几何结构

Modeling and control of dynamic soft reduction in continuous slab casting

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Baosteel Technical Research 2010年第S1期4卷 27-页

作者： GUO Liangliang~(1)),SHEN Houfa~(2)) and YAO Man~(3)) 1) Research Institute,Baoshan Iron & Steel Co.,Ltd.,Shanghai 2.0940,china 2) Department of Mechanical Engineering,Tsinghua university,Beijing 100084,china 3) School of Materials science and Engineering,Dalian university of technology,Dalian 116024,china

The centerline segregation in continuous casting steel is known to be formed by the interdendritic enriched liquid flow at the solidification end in *** present,several methods,such as thermal soft reduction, electromagnetic stirring and dynamic soft reduction,are available to reduce the center segregation and to improve the internal *** some methods could alleviate center segregation to some extent,they can also give rise to new *** instance,thermal soft reduction can lead to surface cracking during casting of some steels and electromagnetic stirring can result in white *** soft reduction is an effective technology for the improvement of strand quality in continuous slab *** this paper,the key parameters of dynamic soft reduction technology,such as soft reduction region,the total reduction amount,for low carbon steel have been studied based on experimental and theoretical *** soft reduction region was related to the segregation of chemical composition,slab bulging of narrow side and avoiding internal crack of *** total reduction amount was composed of natural thermal shrinkage and actual reduction amount depending on critical *** low carbon steel with slab dimension of(950 - 1 950) mm×170 mm,the solid fraction range in soft reduction region was recommended from 0.4 to 0.8,the total reduction amount was 2.0 -2.8 mm,and the optimized reduction rate was 0.4 - 1.2 mm/min,***,a dynamic soft reduction system in continuous slab casting, Visual Cast-Dynamic,has been developed by multithreading *** demonstrated that the dynamic soft reduction model in this study was correct with the ability of online control.

关键词： continuous slab casting dynamic soft reduction soft reduction region total reduction amount

EVALUATION OF NEUTRON NUCLEAR DATA OF 239Pu FOR CENDL-2

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中国核科技报告 1992年第S2期 75-87页

作者： Liang Qichang Yan Shiwei Shen Qingbiao Cai Dunjiu (CHINESE NUCLEAR DATA center, IAE) Cai Chonghai(PHYSICS DEPARTMENT, NANKAI university )Tang Guoyou Zhou Zhining(PEKING university)

Based on the experimental data evaluation and theoretical calculation,thecomplete neutron nuclear data ofPu have been evaluated in the incidentneutron energy range from 10eV to 20 MeV for *** comparisonof present eval... 详细信息

关键词： ENDF data IAE EVALUATION OF NEUTRON NUCLEAR DATA OF Pu FOR CENDL-2

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多波曲线预应力瞬时损失的计算与试验研究

施工技术 2002年第7期31卷 26-28页

作者：郭全全李珠王远平杨秋学张善元太原理工大学山西太原030024

对万家寨引黄工程指挥调度中心中的多波曲线预应力筋的孔道摩擦损失和锚固损失进行了理论计算 ,得到了钢绞线有效预拉力沿梁长的分布 ,并对 3道预应力框架梁中的 3组钢绞线的孔道摩擦损失和锚固损失进行了全面的现场试验研究 ,现场试验... 详细信息

对万家寨引黄工程指挥调度中心中的多波曲线预应力筋的孔道摩擦损失和锚固损失进行了理论计算 ,得到了钢绞线有效预拉力沿梁长的分布 ,并对 3道预应力框架梁中的 3组钢绞线的孔道摩擦损失和锚固损失进行了全面的现场试验研究 ,现场试验检验了理论计算结果的准确性。

关键词：无粘结预应力多波曲线瞬时损失试验

Target Characteristic Fusion Recognition Based on D-S Evidence Theory

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Target Characteristic Fusion Recognition Based on D-S Eviden...