成分

The phytogeographical elements include Cosmopolitans (13.57%), North Temperate elements (36.11%), Tropical Asia elements (16.67%), East Asia elements (19.44%) and Endemic to China (13.89%).

3地理成分多样性含世界分布(13.89%)，北温带分布(36.11%)，热带亚洲分布s(16.67%)，东亚分布(19.44.11%)和中国特有(13.89%)等5种成分。

And the author summarized the main identifiable features at the genera level. Some pictures of new reported species have been drawn. In the thesis, the author studied its geographical elements, compared the species abundance, the generic similarity coefficient, the phytogeographical elrments,and analyzed the floristic spectrum using the method of Principal Component Analysis . According to the comparison between the area of Pangquangou Nature Reserve and other 8 areas, The abundance of the bryophytes of Pangquangou Nature Reserve lower than the other 8 area.

通过物种丰富度、属相似系数、区系谱主成分分析、区系地理成分分析等多种方法与内蒙古七老图山、山东崂山、福建鹫东麓、新疆东部天山和吉林省长白山、河南云台山、河北小五台山、滦河上游地区8个地区的苔藓植物区系进行了比较，发现庞泉沟自然保护区苔藓植物物种丰富度最低。

In this thesis, the chemical constituents from the seeds of Pinus koraiensis and the stems of pinus massoniana were investigated.

为了进一步研究松科植物的化学成分，本论文对红松松子及马尾松枝条的化学成分进行了系统的植物化学分析。

The biological active substances of the stems of pitaya were introduced in this paper.

综述了火龙果茎的活性成分及各种活性成分的应用现状，同时还介绍了火龙果茎的开发应用前景。

Results: Two of them may contain the same chemical component patterns, polyose, acid tannic, phenols, organic acid, flavonoids, anthraquinone, cardiac glycoside, triterpenoids and its saponin etc.

结果：两者所含的化学成分类型基本相同，可初步确定其可能含有多糖、鞣质、酚类、有机酸、黄酮类、蒽醌类、强心苷、三萜类化合物及其皂苷等化学成分。

Applying the theory of deformation partitioning to this area, the author discuss the relationship between deformation and porphyroblast growth, and get the conclusion of the sequence of deformation and metamorphism. At the first time we measure the distribution of chemical composition within the porphyroblast by XRF and confirm the theory of deformation partitioning quantitative.

利用宝音图群泥质变质岩中的存在大量变斑晶矿物，应用变形分解理论，讨论了变斑晶生长和变形关系，确定了变质变形演化序列，提出了变斑晶的生长相，并首次利用同步辐射XRF技术测定了变斑晶矿物的化学成分分布，主要是微区的微量元素成分分布，定量地证实了变斑晶矿物生长相的存在，进而讨论了与变形关系，并进行了变斑晶矿物不同生长相的温压计算。

In conventional seismic data processing, the earth is regarded as prefectly elastic medium.However,the pores of stratum rock often contain fluid. So, when the seismic wave propagates in it, there are energy attenuation and phase distortion related to frequency. Moreover, the attenuation, scattering,and dispersion of high-frequency components are far higher than that of low-frequency components.

常规地震资料处理中把大地看成是完全弹性介质，实际上，地层岩石孔隙中常常含有流体，当地震波在其中传播时要发生与频率相关的能量衰减和相位畸变，且高频成分的衰减、散射和弥散远高于低频成分。

Pseudoephedrine hydrochloride is the main content used in the Cold Medicine and plays the most important role in the treatment.

盐酸伪麻黄碱（S--a-1[1-乙基]-苯甲醇盐酸盐）是感冒药中的常用成分，并且是发挥主要药效的成分。

The expression of AT2R gene can be regulated efficiently in vivo by local delivery of MSC with dual-stable expression of AT2R gene, thus reduces the formation of intimal hyperplasia.④AT2R gene can influence the expression of ECM and significantly promote the cellular apoptosis in the injury rat carotid artery.⑤These data demonstrate the clinical potential of AT2R regulatable expression to prevent restenosis after PCI.

研究结论：(1)与VSMC直接接触可以诱导MSC向血管成分细胞分化；(2)构建的Dox-on可调控的MSC细胞株诱导活性可靠，使外源AT2R基因的表达处于有效的主动控制下；(3)局部导入MSC不影响球囊损伤后大鼠颈动脉新生内膜增生；(4)由MSC介导的AT2R可调控表达受到Dox的良好调控，可有效抑制球囊损伤后大鼠颈动脉新生内膜增生；(5)AT2R影响血管损伤后修复时ECM成分的表达，并促进细胞凋亡的发生，可能是AT2R介导抑制新生内膜形成的机制。

①Rat MSC and VSMC were cultured and identified, respectively. MSC were labeled with DAPI firstly, and then co-cultivated with VSMC. The changes of morphology and ultrastructure of co-cultured cells were observed. Immunfluorescence analysis was performed by using monoclonal antibodies against specific antigen.②We established the regulatable system in two steps: a stable MSC line expressing rtTA has been constructed and characterized firstly by transfected with pUHD 17-1hyg and then selected by hygromycin B; in a second step, this line was used for trandfer the AT2R gene to MSC to get the well establishing double stable MSC lines;③The expression of AT2R regulated by doxycycline was evaluated by western blot;④The MSCs were transduced into rat carotid arteries with regulatable AT2R gene after the establishment of rat carotid balloon injury restenosis model. The intimal/medial area ratio were measured by digital analysis system.

研究方法：(1)密度梯度离心法及胶原酶消化法分别培养原代大鼠MSC及VSMC，细胞共培养并行免疫荧光化学染色和透射电镜观察超微结构；(2)组成受Dox调控的哺乳动物表达系统的四种成分的转化、扩增及提纯并酶切鉴定；(3)采用常规分子生物学方法连续两个回合转染体外培养的MSC，并分别采用发光计检测不同细胞克隆萤光素酶活性改变以及RT-PCR方法检测AT2R目的基因mRNA表达情况，根据各个细胞克隆受Dox调控表达的程度，选择低背景、高诱导表达AT2R的细胞系，作为双重稳定MSC细胞系；蛋白免疫印迹法观察该细胞系在Dox调控下AT2R表达的时相性、持续性及在不同浓度Dox调控下的表达情况；(4)建立大鼠颈动脉球囊损伤动物模型，将双重稳定MSC在术中导入血管，分别于14 d、28 d进行病理切片，检测可调控AT2R对新生内膜增生的影响；采用RT-PCR免疫组织化学免疫荧光等技术观察AT2R基因在新生内膜中的表达以及细胞外基质成分表达的改变，TUNEL法检测血管组织中细胞凋亡的变化情况。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。