基数据

Coumarinyloxy)-6-methoxyl-7-hydroxycoumarin,β-sitosterol, 3-stigmast-5-en-3- 3 -D-Glucopyranoside . 3-(7-coumarinyloxy)-8-(7-hydroxycoumarin-8-yl)-7-hydroxycoumarin rhamnoside and Sucrose. Compound I , V, IX and XI were isolated from barks and stems of this plant for the first time and compound VI and VI were isolated from flowers of this plant for the first time, too.

共鉴定了其中11个化合物，根据理化性质和波谱数据鉴定确定为：丁香甙，结香甙C(Edgeworoside C Ⅱ)，7-羟基香豆素(7-hydroxycoumarin Ⅲ)，5，7-二甲氧基香豆素(5，7-dimethoxycoumarin Ⅳ)，卫矛醇，异吲哚-1，3-二酮1H-iso-Indole-1，3(2H-dione Ⅵ，西瑞香素(Daphnoretin Ⅶ)，β-谷甾醇(β-sitosterol Ⅷ)，胡萝卜甙(Daucosterol Ⅸ)，结香甙A(Edgeworoside A Ⅹ)和蔗糖。

Although reducing the number of fins increases thermal resistance and the substract temperature, the measured data indicates that the thermal resistance of the road lamp is low enough to ensure sufficient cooling capability and safety chip temperature at the rated operating power.

减少散热鳍片的数量虽然会增加热阻与铝基板的温度，但是实验数据显示本灯具的散热路径热阻甚低，足以提供本灯具在额定功率的散热性能，确保晶片维持在安全的工作温度。

Through analyzing of the theory and the results, we concluded that method 2, namely mixed reaction of defatted soy flour, Urea-SDS solution and Ellman's reagent, can determined exactly sulphydryl content of defatted soy flour.

通过理论和数据分析得到，方法二即脱脂豆粕、尿素－SDS溶液和Ellman's试剂相混合反应可用于测定脱脂豆粕中的巯基含量。

Reactive oxygen species causing DNA oxidative damage comes from two kinds of ways:one is from cellular normal physiological metabolism;the other is from outer environment.Redox-sensitive green fluorescent protein was expressed in Saccharomyces cerevisiae.Recombinant cells were evaluated in monitoring the changes in the redox state of living cells when challenged with toxicologically relevant metal ions NaAsO_2 or Pb(NO_3)_2 by measuring emission intensity at 510 nm with a Hitachi F6500 fluorescence spectrophotometer,roGFP expressed in yeast responded not only to typical membrane-permeant oxidants H_2O_2 and reductants DTT,but also to toxicological metal ion-induced intracellular redox changes in a dose-dependent manner.Moreover,exposure of yeast cells to NaAsO_2 or Pb(NO_3)_2 at concentrations that induced redox changes reported by roGFP caused up to 2～3 fold increases in DNA mutation frequency.This mutagenic effect was largely caused by oxidative stress since blocking the production of hydryl radicals with thiourea significantly reduced the mutation rate as well as delayed the cell death.

本文将对氧化还原状态变化敏感的绿色荧光蛋白roGFP1-R12，在酵母细胞中实现了多拷贝强表达；荧光扫描经强氧化剂H_2O_2和还原剂DTT以及环境中重金属NaAsO_2或Pb(NO_3)_2处理后的酵母细胞悬液，测定510 nm处的荧光发射强度结果显示，表达的绿色荧光蛋白对氧化还原水平敏感，且在510 nm处的荧光强度与一定的重金属浓度呈正相关，即roGFP1-R12在510nm处的荧光发射值随重金属浓度的增高而增强，从而说明重金属对细胞的毒性在一定程度上很可能是通过破坏细胞内的氧化还原平衡发生作用；同时通过该绿色荧光蛋白对胞内氧化还原状态变化的响应情况可以来实时检测环境中的重金属；遗传学的点突变频率及致死率实验数据表明，重金属能导致菌体的点突变频率和致死率升高，且活性氧的清除剂巯基脲能明显降低这种点突变和致死率，说明由重金属引发的这种点突变和致死效应在很大程度上是依赖于重金属对细胞诱导产生的氧化胁迫。

The structural assignment of Ⅱwas supported by spectral data and was confirmed by the identification of the compound as the product obtained by synthesis from triethyl orthoacetate and 2- cyanot hioacetamide.

结构的指定得到由光谱数据的支持，确认结构是通过原乙酸三乙酯和2-氰基-硫代乙酰胺合成得到的化合物。

On the basis of the summarization of MCM-Cs main features and its assembly and packaging technologies, the paper puts stress on relatively deepgoing studies in practically advanced MCM-C assembly process technologies as gold ball wire bonding, IC chip gold ball stud bump making, IC flip chip bonding and underfilling, in high reliability MCM-C packaging process technologies as integral LTCC substrate packaging, hermetically metal sealing, and also in the basic technological process of MCM-C assembly and packaging. Later on, it presents the effectively engineering development of two high level actual module products--a high-density monolithic processor system MCM-C , a high-speed data collecting and processing system MCM-C. Lastly, it briefly introduces various common methods of quality inspection and reliability test of MCM-C assembly and packaging in engineering practice.

论文在综述MCM-C的主要特点及其组装封装技术的基础上，重点对金丝球引线键合、IC芯片金球凸点制作、IC芯片倒装焊与下填充等实用先进MCM-C组装工艺技术和LTCC基板与外壳及PGA引线的一体化封装、气密性金属封装等高可靠MCM-C封装工艺技术以及MCM-C组装封装基本工艺流程展开了较深入的研究，有效完成了高密度单片机系统MCM-C和高速数据采集控制系统MCM-C等两种高水平实际产品的工程化研制工作，扼要介绍了工程实践中MCM-C组装封装工艺常用的质量检验方法和可靠性试验方法。

RESULTS: A germacrane sesquiterpenoid, incaspitolide D (1), along with-N-benzoylphenylalanine--2-benzamido-3-phenyl- propyl ester (2), indole-3-carboxylic acid (3), apigenin (4), diosmetin (5) and luteolin (6) was isolated. CONCLUSION: Compounds 1-5 were isolated for the first time from Vernonia patula.

结果：分离到1个牻牛烷型倍半萜内酯， 1个苯丙氨酸衍生物、1个生物碱和3个黄酮化合物，根据波谱数据和X-衍射分析分别鉴定为：incaspitolide D (1)，-N-苯甲酰基苯基丙氨酸–-2-苯甲酰氨基–3-苯基丙酯(S-N-benzoylalanine-–2-benzamido-3-phenylpropyl ester， 2；吲哚-3-羧酸(indole-3-carboxylic acid， 3)；香叶木素(diosmetin， 4)，芹菜素(apigenin， 5)和木犀草素(luteolin， 6)。

Aimed at the difficulty to extract the fault information of a low speed shaft in a large gearbox, wavelet analysis was used to realize the local analysis of signals in a time and frequency domain simultaneously. The signals were dissembled to a sieres of compactly supported wavelet bases non-redundantly and without leaking.

针对大型齿轮箱低速轴故障信息难以提取的问题，采用小波分析方法对故障数据进行处理以实现信号在时/频域的局域性分析，将其无冗余、无泄漏地分解到一组具有紧支撑性的小波基上。

In order to design an actual pile foundation it is common to collect as much as possible information concerning pile ultimate load capacity for that project from available sources, induing estimation by using some empirical formulas, thus it forms an estimation distribution.

为具体桩基工程的设计，从各渠道收集到的有关该工程的极限承载力信息，包括用各种经验式估算，构成一个估计分布，然后结合实地进行的静载荷试验资料应用Bayes理论将上述各项数据进行综合更新，最终得到一个后验的极限承载力均值及其标准差。

There is a suggestion in the data that productivity was more responsive to changes in artificial than natural light.

发现这些数据在密尔沃基和波士顿的两个存档中留存了几十年，于是他们决定重新以经济学的分析方式来研究它们。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。