检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

佛手精油研究进展

农产品加工（下） 2017年第7期 69-70,74页

作者：陈汉民许剑华张淑芝汪华灯贺豪杰广东展翠食品股份有限公司广东潮州515634

佛手精油是一种天然香料精油,具有多种生理活性功能,广泛应用于食品、药品、日用品、化妆品等行业中。通过对佛手精油的药理功效进行分析总结,并对不同的佛手精油提取方法进行对比,为进一步利用佛手精油提供有益参考。

关键词：佛手精油应用提取前景

The atomic parameter model for the fifth and sixth transition metal quasicrystal alloys(Mc=0.5)

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2009年第10期52卷 1593-1600页

作者： LIAO shuzhi GUI XuChun zhang Chun PENG HaoJun XIE HaoWen OUYANG YiFang zhang BangWei Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Education Department of PhysicsHunan Normal UniversityChangsha 410081China College of Mathematics and Computer Science Hunan Normal UniversityChangsha 410081China Department of Physics Guangxi UniversityNanning 530004China Department of Applied Physics Hunan UniversityChangsha 410081China International Centre for Materials Physics Chinese Academy of SciencesShenyang 110015China

The forming ability of quasicrystal phase has a relationship with the atomic bond factors based on differences in atom size and electron ***,those factors or their combination are used to describe the forming ability,stability of alloys,*** this paper,the quasicrystal alloy forming abilities for the fifth and sixth transition metals(Y,Zr,Nb,Mo,Ru,Rh,Pd and La,Hf,Ta,W,Re,Os,Ir,Pt) based alloys have been studied by the size factor and the atomic parametric *** has been found that an ellipse curve can be used to separate the quasicrystal formed area from the informed area in the size factor and atomic parameters functional *** ellipse curve can be defined by an equation(x-m)2/c2+(y?n)2/d2=*** overall reliabilities for the model are up to 97.4% and 95.5% for the fifth and the sixth transition metals based quasicrystal alloys,***,the ellipse parameters m,n,c and d can be paraphrased by some appropriate parameters for each host metal.

关键词： quasicrystal transition metal atomic parametric model ellipse model

Simple analytic embedded atom potentials for HCP metals

在线全文

学校读者我要写书评

暂无评论

中国有色金属学会会刊：英文版 1999年第3期9卷 586-592页

作者： Ouyang Yifang(欧阳义芳) zhang Bangwei(张邦维) Liao shuzhi(廖树帜) Jin Zhanpeng(金展鹏) Guangxi Univ Dept Phys Nanning 530004 Peoples R China

A new simple analytic embedded atom model including a modified term, which has previously been successfully applied to the atoms in the FCC and BCC crystal systems, is now extended to the HCP structure. The model parameters are determined for HCP transition metals Co, Hf, Re, Ru, Sc, Ti, Y and Zr with ideal c/a ratios. The model is fitted to the lattice constants, cohesive energy, vacancy formation energy, elastic constants and is able to reproduce the experimental data quite well. The structure stability of real HCP, BCC and simple cubic is discussed, the formation energy of divacancy in the base plane and in different planes are also calculated, and the divacancy is found to be not bound.

关键词： embedded atom method vacancies formation energy structural stability

半胱亚磺酸脱羧酶在妊娠小鼠子宫和胚胎中的表达定位研究

在线全文

学校读者我要写书评

暂无评论

重庆医学 2019年第14期48卷 2349-2352页

作者：李炜吕钊旭冯永珍张淑芝左语馨范晶晶潍坊护理职业学院内科教研室山东潍坊261041 山东省潍坊市妇幼保健院新生儿科 261000 潍坊学院校医院护理部山东潍坊261061 潍坊学院生物与农业工程学院山东潍坊261061 山东省高校生物化学与分子生物学重点实验室/潍坊学院山东潍坊261061

目的研究半胱亚磺酸脱羧酶(CSD)mRNA和蛋白在妊娠小鼠子宫和胚胎中的表达定位。方法构建CSD原位杂交探针,收集正常妊娠小鼠第1~9天子宫组织和第11天胚胎,采用免疫组织化学染色、原位杂交检测CSD的表达情况。结果小鼠妊娠第1~2天CSD主要... 详细信息

目的研究半胱亚磺酸脱羧酶(CSD)mRNA和蛋白在妊娠小鼠子宫和胚胎中的表达定位。方法构建CSD原位杂交探针,收集正常妊娠小鼠第1~9天子宫组织和第11天胚胎,采用免疫组织化学染色、原位杂交检测CSD的表达情况。结果小鼠妊娠第1~2天CSD主要定位在子宫腔上皮细胞和腺上皮细胞,基质细胞从第3天开始表达,第6天开始胚胎周围的子宫蜕膜细胞中检测不到CSD蛋白,第8天子宫CSD的表达明显减弱,第9天表达更弱。从囊胚到第9天时胚胎都有CSD表达。CSD在第7天定位于着床点子宫和胚胎中,胚胎周围的子宫蜕膜细胞无表达,在第11天定位于胚胎的脑、心脏、脊髓。结论子宫和胚胎在小鼠妊娠过程中可表达CSD。

关键词：半胱亚磺酸脱羧酶子宫胚胎,哺乳动物定位

SnO_2(F)、Fe_2O_3和ZnSe(Fe)薄膜厚度的测量

在线全文

学校读者我要写书评

暂无评论

山东大学学报（自然科学版） 1993年第2期28卷 189-195页

作者：谭春雨夏曰源张汝贞刘吉田刘向东许炳章李淑英陈有鹏张淑芝山东大学物理系山东大学光电材料与器件研究所山东大学光学系

用RBS技术、椭偏法和微量天平称重法测量了掺氟SnO_2(FTO)透明导电膜、掺铁ZnSe磁性半导体膜和Fe_2O_3气敏元件膜的薄膜厚度.实验结果表明,RBS技术的测量数值与椭偏法以及微量天平称重法测得的结果符合得较好。

关键词：薄膜厚度 FTO 氧化铁硒化锌铁

EAM APPROACH TO ENTHALPY OF FORMATION OF ALKALI METAL ALLOYS

在线全文

学校读者我要写书评

暂无评论

中国有色金属学会会刊：英文版 1996年第4期6卷 52-56页

作者： zhang Bangwei Ouyang Yifang Liao shuzhi Jin Zhanpeng1 (International Centre for Materials Physics,Shenyang 110015)2 (Department of physics,Hunan University, Changsha 410082)3 (Department of Materials Science and Engineering,Central South University of Tec International Centre for Materials Physics Shenyang 110015 China Department of Physics Hunan University Changsha 410082 China Department of Materials Science and Engineering Central South University of Technology Changsha 410083 China Department of Chemistry and Chemical Engineering Hunan University Changsha 410082 China

ＥＡＭＡＰＰＲＯＡＣＨＴＯＥＮＴＨＡＬＰＹＯＦＦＯＲＭＡＴＩＯＮＯＦＡＬＫＡＬＩＭＥＴＡＬＡＬＬＯＹＳ￥ＺｈａｎｇＢａｎｇｗｅｉ；ＯｕｙａｎｇＹｉｆａｎｇ；ＬｉａｏＳｈｕｚｈｉ；ＪｉｎＺｈａｎｐｅｎｇ１（Ｉｎｔｅｒｎ... 详细信息

ＥＡＭＡＰＰＲＯＡＣＨＴＯＥＮＴＨＡＬＰＹＯＦＦＯＲＭＡＴＩＯＮＯＦＡＬＫＡＬＩＭＥＴＡＬＡＬＬＯＹＳ￥ＺｈａｎｇＢａｎｇｗｅｉ；ＯｕｙａｎｇＹｉｆａｎｇ；ＬｉａｏＳｈｕｚｈｉ；ＪｉｎＺｈａｎｐｅｎｇ１（ＩｎｔｅｒｎａｔｉｏｎａｌＣｅｎｔｒｅｆｏｒＭ...

关键词： EAM approach enthalpy of formation alkali metal alloys

Size and composition dependence of melting temperature of binary nanoparticles

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2011年第5期54卷 897-900页

作者： LU YunBin LIAO shuzhi XIE Bin CHEN Jia PENG HaoJun zhang Chun ZHOU HuiYing XIE HaoWen OUYANG YiFang zhang BangWei Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Education Department oy rnystcs Hunan Normal University Changsha 410081 China College of Mathematics and Physics University of South China Hengyang 421001 China College of Mathematics and Computer Science Hunan Normal University Changsha 410081 China Computer and Information Engineering School Central South University of Forestry and Technology Changsha 410004 China Department of Physics Guangxi University Nanning 530004 China Department of Applied Physics Hunan University Changsha 410082 China International Centre for Materials Physics Chinese Academy of Sciences Shenyang 110015 China

Based on the ideal solution approximation, the model for size-dependent melting temperature of pure metal nanoparticles is extended to binary alloy systems. The developed model, free of any adjustable parameter, demonstrates that the melting temperature is related to the size and composition of alloy nanoparticles. The melting temperature of CuNi, PbBi and Snln binary alloy nanocrystals is found to be consistent with the experiments and molecular dynamics simulations. The research reveals that alloy nanocrystals have similar melting nature as pure metal.

关键词： nano binary alloy melting temperature size-dependent

DATA PROCESSING OF UNIVERSAL QUANTITATIVE METHOD IN STANDARDLESS X-RAY PHASE ANALYSIS

在线全文

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 1989年第11期2卷 348-353页

作者： LIN shuzhi zhang Xizhang WANG Wenzhong, Institute of Metal Reaserch, Academia Sinica, Shenyang, China

Accuracy of coeffcient A_(isp) is related to the reference phase chosen during analysis. The cri- terion of choosing reference phase which may minimize the error of A_(isp) was deduced. The optimum results could be obtained by using the method of least squares if the number of sam- pies for analysis is more than the phase in samples. The procedure presented here is satisfacto- ryfor ordinary phase analysis.

关键词： X-ray diffraction analysis data processing

添加复合酶制剂对肉羊全混合颗粒日粮体外营养物质消化率、瘤胃发酵参数及育肥效果的影响

在线全文

学校读者我要写书评

暂无评论

中国畜禽种业 2024年第1期20卷 103-109页

作者：张淑枝吴振洲栗文钰王丽娟刘仰知乔梁陈玉艳孙玉飞王影杨慧杰禾丰食品股份有限公司辽宁沈阳110164 辽宁省检验检测认证中心辽宁沈阳110016

该体外试验采用两阶段消化法,对照组为基础日粮,试验Ⅰ、Ⅱ组在基础日粮基础上分别添加复合酶Ⅰ(100g/t)和复合酶Ⅱ(100g/t),体外消化48h,用以评估不同酶制剂对肉羊全混合颗粒日粮体外营养物质消化率及瘤胃发酵参数的影响。饲养试验选... 详细信息

该体外试验采用两阶段消化法,对照组为基础日粮,试验Ⅰ、Ⅱ组在基础日粮基础上分别添加复合酶Ⅰ(100g/t)和复合酶Ⅱ(100g/t),体外消化48h,用以评估不同酶制剂对肉羊全混合颗粒日粮体外营养物质消化率及瘤胃发酵参数的影响。饲养试验选取体重(20.83±0.42)kg、50-60日龄的120只小尾寒羊公羊,随机分为3组,每组40只,分别为对照组、试验Ⅰ组、试验Ⅱ组,对照组为基础全混合颗粒日粮,试验Ⅰ、Ⅱ组分别在基础日粮基础上添加复合酶Ⅰ(100g/t)和复合酶Ⅱ(100g/)。饲喂期共计90d,其中预饲期为7d,试验期83d。体外试验结果表明:与对照组相比,试验Ⅰ组显著地提高了干物质、中性洗涤纤维和酸性洗涤纤维消化率(P0.05)。与对照组相比,试验Ⅰ组的干物质、粗蛋白、中性洗涤纤维和酸性洗涤纤维消化率均无显著差异(P>0.05)。不同处理对瘤胃pH值均无显著影响(P>0.05)。与对照组相比,试验Ⅰ组和试验Ⅱ组显著降低了瘤胃氨态氮浓度(P<0.01),试验Ⅱ组显著提高了总挥发性脂肪酸浓度(P<0.01)。饲养试验结果表明:与对照组相比,试验Ⅰ组显著地提高了育肥羊的干物质采食量、日增重和饲料转化率(P<0.05)。可见,复合酶对肉羊体外营养物质消化率和瘤胃发酵参数有一定影响;饲养试验表明,添加复合酶Ⅱ(100g/t)可显著提高饲料转化率和日增重。

关键词：复合酶育肥肉羊体外消化瘤胃发酵日增重