分类系统

Based on relative literatures,this part has included five resesearch aspects as below.1 Fifteen compounds were isolated and purified by extraction,column chromatography,and their structures were determined on the basis of spectral analysis: acteoside(Ⅰ-1),isoacteoside(Ⅰ-2),crenatoside(Ⅰ-3),cistanoside F(Ⅰ-4),sinapoyl-4-O-β-D-glucoside(Ⅰ-5),adenosine(Ⅰ-6),β-siterol(Ⅰ-7),oleanic acid(Ⅰ-8), succinic acid(Ⅰ-9),caffeic acid(Ⅰ-10),protocatechuic aldehyde(Ⅰ-11),p-hydro xybenzyl alcohol(Ⅰ-12),β-daucosterol(Ⅰ-13),D-galacitol(Ⅰ-14),D-mannitol(Ⅰ-15).Ⅰ-4～15 were obtained from this plant for the first time,andⅠ-6,7,9,and 13 were isolated from Orobanche genus for the first time.2 The scavenging test of DPPH showed that most compounds have comparative antioxidant activity as L-ascorbic acid and part of them show better activity such as the O.coerulescens extract and phenylethanoid glycosides.Acteoside showed potent free radical scavenging effects with a median inhibition concentration of 25.6μg/ml.3 The anti-HBV activities of acteoside,isoacteoside and crenatoside were measured,and all of them showed suppressive activity on the expression of HBsAg and HBeAg in the HepG2.2.15 cell line.

本论文在文献调研基础上对紫花列当化学成分及生物活性进行了研究，并从免疫抗病毒角度探讨紫花列当中特征性成分类叶升麻苷的肝保护作用及其机制。1采用大孔树脂、硅胶和Sephadex LH-20等色谱技术对紫花列当进行系统的植物化学研究，从中分离得到19个化合物，利用UV和NMR等波谱手段及理化性质鉴定了其中的15个化合物，分别为类叶升麻苷(Ⅰ-1)、异类叶升麻苷(Ⅰ-2)、crenatoside(Ⅰ-3)、cistanoside F(Ⅰ-4)、sinapoyl-4-O-β-D-glucoside(Ⅰ-5)、腺苷(Ⅰ-6)、β-谷甾醇(Ⅰ-7)、齐墩果酸(Ⅰ-8)、琥珀酸(Ⅰ-9)、咖啡酸(Ⅰ-10)、原儿茶醛(Ⅰ-11)、对羟甲基苯甲酸(Ⅰ-12)、β-胡萝卜苷(Ⅰ-13)、D-半乳糖醇(Ⅰ-14)和甘露醇(Ⅰ-15除化合物Ⅰ-1、Ⅰ-2和Ⅰ-3外，其余化合物均为首次从该植物中分离得到。2)通过大孔树脂富集该药材有效部位苯乙醇总苷，并采用HPLC测得其所含特征性成分类叶升麻苷的含量可达80%以上。3DPPH自由基清除试验显示紫花列当提取物及其所含的苯乙醇苷类化合物均具有较好的抗氧化能力，其清除DPPH自由基能力接近于抗坏血酸。4采用卡介苗整体致敏、脂多糖离体攻击构建大鼠原代肝细胞免疫性损伤模型，在体外观察类叶升麻苷的保肝作用。

The placement of 11 taxa, formerly sorted on the subgroup level of the Chinese Soil Genetic Classification System, in CST was elucidated in the paper. All these soils studieds are classified into 5 CST Orders: Anthrosols, Ferrosols, Argosols, Cambosols and Primosols, 5 CST Suborders: Stagnic Anthrosols, Udic Ferrosols, Udic Argosols, Udic Cambosols and Orthic Primosols, 15 CST Group and 23 CST Subgroups.

阐述土壤发生分类体系的11个亚类级土壤类型在中国土壤系统分类中归为5个土纲，即人为土、富铁土、淋溶土、雏形土和新成土；5个亚纲，即水耕人为土、湿润富铁土、湿润淋溶土、湿润雏形土和正常新成土；15个土类和23个亚类。

The birds of Passeriformes are the group which are the largest number, the most species, the highest station of evolvement and the broadest adaptive radiation of existent aves. The traditional taxonomy were onlyaccording to morphologic and behavioral characters, however their morphologic and behavioral characters are so complicated that we could not differentiate some species easily. Therefore we had some taxonomic research by molecular means in order to supply traditional taxonomy.

雀形目是现存鸟类中种类最多、数量最大的、演化地位最高、适应辐射最广的类群，传统的分类方法仅依据形态和行为特征来划分，但由于该类群的形态及行为特征复杂使得部分种类不易区分，因此有必要依据分子手段研究其系统发生关系、以盼能对经典的分类方法给予补充。

The averaged recognition rate on 751000 untrained characters is 84% while the averaged 10th accumulating classification rate of preclassification is 96%.

初步实现了一个可识别国标一级3755字的结构验证式识别子系统，这个系统与一个统计法的粗分类方案相结合，对粗分类给出的10位候选字进行识别。

According to our three years study, the earliest suoid are records from Southern Asia, and the controversial primitive suoids are neither typical suid nor typical tayassuid, there is another group to unit the primitive suoids. A new systematic classification is suggested to the suoids group.

通过本课题三年来的工作，我们发现最早的猪形类是在亚洲起源的，长久以来争论不休的早期猪形类既非典型的猪类，又非典型的西猯类，解决了早期猪形类的分类问题，并以支序系统学为理论提出了新的猪形类分类方案。

In this study, the ITS sequences including 5.8S gene from 34 Trametes strains were determined and used to construct a phylogenetic tree for phylogenetic analysis together with 17 reference sequences obtained from the GenBank database.

测定了34个分类单元的ITS(包括5.8SrDNA)序列，并对得到的43个分类单元的ITS序列进行系统发生分析，构建了聚类分析树状图。

Finally, we carry out the Rough Set-Based method classing customers and obtain comparatively good result of experiment, which prove this paper is available.

通过对客户关系管理系统中获取的数据进行实验，本文实现了相应的客户分类功能，并获得了较好的效果，证实了本文采用的客户分类方法具有一定的实用价值。

Numerical classification and cladistic analysis were new ways in phylogenetics.

数值分类和支序分类是系统发育分析的两种新方法。

Study on systematic taxonomy of isolated halophiles had been done using polyphasic technology including morphological and cultural characteristic obserbations, physiological and chemical tests, analyses of chemtaxonomy and G+C content, DNA-DNA homology and 16S rRNA sequences.

并对分离到的嗜盐菌菌株采用形态特征、培养特征观察，生理生化测定，细胞化学组分分析，DNAmol％和DNA同源性测定，以及16S rDNA全序列分析等多项分类技术对其进行系统的分类研究。

Theoretical analysis and experimental results show that the BTSVM algorithm is superior to other competitive multi classifiers.

理论和实验结果表明，本文提出的基于支撑向量机的多类分类器在整体性能上要优于其它类似的分类器系统。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。