项目教学法在《单片机原理与应用》课中的应用

在<单片机原理与应用>课程中引入项目教学法,利用"示范项目"、"练习项目"、"实训项目"贯穿整个教学过程,学生在教师的指引下实施项目任务.     

刺楸大规格苗木培育技术试验研究

针对刺楸大苗培育过程中存在的关键技术难题开展栽培试验研究,总结出了不同规格刺楸苗木合适的培育密度和整形修剪技术方法。     

蒙古马血液蛋白(酶)遗传多态性及聚类分析

采用垂直平板不连续聚丙烯酰胺凝胶电泳技术对221匹蒙古马（包括乌珠穆沁马、乌审马、锡尼河马和巴尔虎马）的8种血液蛋白进行多态性检测。计算了各位点的基因型频率、等位基因频率、遗传杂合度，并通过聚类分析探讨了群体间的亲缘关系和遗传距离。结果表明：除α1-B糖蛋白（A1B）位点呈现为单态外，其余7个蛋白（酶）位点均在不同程度上表现出多态。8个蛋白（酶）位点的平均杂合度分别为：乌珠穆沁马0．3296，乌审马0．3056，锡尼河马0．3783和巴尔虎马0．3666。对Nei氏标准遗传距离进行聚类分析，发现巴尔虎马和锡尼河马之间的遗传距离最近，它们与乌珠穆沁马和乌审马的遗传距离相对较远。     

MEK-石脑油可回收稀释降粘输送工艺

概述了稠油的物性,分析了石脑油中加入MEK(甲基乙基酮)后对稠油的稀释降粘效果。介绍了MEK-石脑油可回收的稠油稀释降粘工艺流程,指出MEK-石脑油回收稀释降粘工艺虽比石脑油回收稀释降粘工艺增设了一套MEK回收装置,投资及运行成本略高,但其降粘效果较好,能够以较小的稀释比提高稠油的输送能力。     

五节芒的分化类型及生产性状的比较研究

通过长期的引种栽培，发现五节芒分化出宽叶和窄叶类型。经对形态特征、生产性状的比较研究，证明两个类型差异显著，性状稳定。还证明，宽叶类型的生产性状明显优于窄叶类型。     

Subcellular localization of ZNF580-EGFP fusion protein

AIM: To construct a eukaryotic expression plasmid for enhanced green fluorescent protein (EGFP) and ZNF580 fusion protein, and study its subcellular localization in the transfected MGC803 cells. METHODS: The primers were designed according to the cDNA encoding sequence of ZNF580 full-length open reading frame (1-172aa), ZNF580 amino terminus (1-93aa) and ZNF580 carboxyl terminus (94-172aa). The three cDNA segments of PCR were cloned into pGEM-T vector. Then they were subcloned respectively into plasmid pEGFP-C1 (enhanced green fluorescent protein). The subcellular localization of the fusion protein in MGC803 cells transfected with the vector was monitored by autofluorescence microscopy. RESULTS: Restricted enzymes analysis and DNA sequencing showed that the sequences of the pEGFP-ZNF580 (1-172), pEGFP-ZNF580 (1-93) and pEGFP-ZNF580 (94-172) transgenic plasmid were correct. The fusion proteins of EGFP-ZNF580 (1-172) and pEGFP-ZNF580 (94-172) were localized in the nuclei. CONCLUSION: The recombinant eukaryotic expression vector pEGFP-ZNF580 has been successfully constructed. The nuclear localization signal is within amino acid residues 94 and 172 of ZNF580 carboxyl terminus (C2H2 zinc finger domain).     

植物叶面积测定方法的比较研究

以两个不同品种的大豆叶片为研究对象，采用了不同的测定方法测定叶面积，分析并指出各种测定方法的优缺点，为在不同测定条件和实验目的要求下选择不同的叶面积测定方法提供依据，也为研究人员提供更加准确、快速、简便和经济的测定方法和依据。     

Studies on the pathogenicity ofBabesia bovis in water buffaloes after cryopreservation and resuscitation

Tropical Animal Health and Production - Packed erythrocytes infected withBabesia bovis were mixed with an equal volume of 16% dimethyl sulphoxide (DMS0) in Alsever’s solution and dispensed...     

美国杏李不同施药时间对李实蜂防治效果

2007-2008年在美国杏李上进行了不同施药时间对李实蜂防治效果试验。结果表明：盛花末期施药虫果率最低，防治效果最好。