Therapeutical effect of Shengmaisan is determined by the interaction among the three herbs

Shengmaisan is a recipe of traditional Chinese medicine, which is composed of three herbs. The interaction among the components from the three herbs of Shengmaisan is investigated using FT-IR, Matrix Assistant Laser Desorption/Ionization Time of flight mass spectrometry (MALDI TOF MS) and TEM observation. Interactions among various components from different herbs cause enhancement of the solubility of some component and suppression of the solubility of others. Results from MALDI-TOF MS show that some components found in the decoction from a single herb disappear when different herbs are decocted together. On the other hand, new substances are produced when two and/or three herbs of Shengmaisan are decocted together. TEM showed that vacuoles formed in the decoction from two and/or three herbs of Shengmaisan but did not occur in any decoction from a single herb. This result provides us direct evidence that the solubilized structure is formed by the interaction among the components from different herbs. This knowledge helps us to understand the therapeutical effects of traditional Chinese medicine.     

松辽盆地南部海坨子地区油气成藏研究

松辽盆地南部海坨子地区扶余油层与萨尔图油层中有机包裹体有较大差异。扶余油层中有机包裹体量多 ,个体大 ,早期和晚期有机包裹体发出强的黄色荧光 ;萨尔图油层有机包裹体丰度不高 ,个体都较小 ,早期和晚期有机包裹体发出弱的浅黄色荧光。这说明萨尔图油层的烃类成熟度比扶余油层的烃类成熟度高。海坨子构造主要发生过两次成藏过程 ,早期在嫩江期末 ,晚期发生在明水期末至第三纪。扶余油层和萨尔图油层的油气来源不同 ,前者油气主要来自海坨子构造青一段烃源岩 ,后者主要来自乾安凹陷青山口组烃源岩。     

空气水两相段塞流的跟踪模拟及试验研究

分析了前人提出的段塞跟踪模拟方法的优缺点 ,根据液塞头部的加速压降和入口液塞长度分布特征对段塞跟踪模型进行了改进。采用面向对象技术 ,实现了水平和倾斜管道段塞流的跟踪模拟 ,并与多相流试验环道的空气水试验数据进行了对比。模拟结果表明 ,当不考虑加速压降时 ,用跟踪模型预测的压降低于实测值 ;当考虑加速压降时 ,用跟踪模型预测的压降高于实测值。在管道上固定位置测出的压力信号符合正态分布 ,管道上某一固定点处液塞头部和尾部的速度分布也符合正态分布。当不考虑气泡尾波作用时 ,液塞长度沿管线增长较慢 ,分布形状无变化 ;但是考虑气泡尾波作用时 ,在入口附近液塞长度平均值增长较快 ,统计分布沿管轴向呈对数正态分布。     

基于Web的证书管理系统的设计与实现

公钥基础设施PKI(Public Kcy Infrastructure)已成为当前解决信息安全问题的主流方法。如何构建安全可靠的证书管理系统是PKI技术的主要问题之一。从安全性和扩展性角度提出了一个基于Web的证书管理系统的框架模型，着重阐述了模型中证书数据处理和主要的证书管理机制，并讨论了实现证书管理系统的关键技术。     

基于C/S结构的中小型市长热线坐席系统的开发

设计了基于客户机／服务器体系结构的市长热线坐席系统，给出了总体设计方案，包括坐席与客户呼叫管理之间消息的交互及系统模块，介绍了系统所采用的软件平台和基本技术，阐述了系统具有的特色。     

一种新型糖基表面活性剂的合成及其性质

以葡甲胺和正烷基(C12，C14，C16，C18)溴为原料在无水乙醇中反应生成叔胺中间体，葡甲胺：正烷基溴(物质的量之比)=1．008：1，温度78℃，反应时间5h；季铵化反应，叔胺：正烷基溴(物质的量之比)=1：1，100℃下反应3h后，再于130℃下反应2h，对产物结构用红外光谱和电喷雾质谱进行了表征，同时测定了合成产物的季铵盐含量、表面张力和临界胶束浓度等，讨论了结构和性能的关系。     

Oxidative Treatment of Some Reactive Dyes by Fenton Reagent

Nine kinds of reactive dye solutions: Reactive K-2RL, H-E2R, X-6B1Y, HE-4G, X-3B, K-2R,H-E7B, X-4RN and S-F3B were treated by usingFenton reagent. While the concentration of dye is 400mg/L, the FeSO_4 dosage 100-180 mg/L, H_2O_2 240～540 mg/L, that is the stoichiometric numbers of Fe~(2+)and H_2O_2. are between 1: 9～1: 12, pH=3, reaction     

Quantitative Analysis on Postponement Strategies of Decoupling Points in Mass Customization

The key to mass customizing effectively is postponingthe deco upling point of customer order in the supplynetwork. This paper focused on quantitative analysison postponement strategies of multiple decouplingpoints in mass customization to improve operating     

Ordinary Toxicity of Chlorine Dioxide and By-products Chlorite and Chlorate in Water

Acute toxicity and accumulated toxicity of chlorine dioxide (ClO2) and by-products chlorite (ClO2-) and chlorate (ClO3-) in water acted on mice are studied by the method of Horn and accumulation coefficient. Subchronic toxicity of the mixture of ClO2 and ClO2-and ClO3- in water acted on rat is studied though feeding test for 90 days, including statistical analysis of variance on weight gaining, food utilization efficiency,index of blood and serum,liver (or kidney) to body weight ratio, and histopathological examination on liver and kidney. The results show that aqueous solution of ClO2, NaClO2 and NaClO3 ( with the concentration of 276.5 mg/L, 200 mg/L and 200 mg/L respectively) and the mixed aqueous solution of ClO2 with the concentration of 553 mg/L are actually non-poisonous , and non-cumulative aqueous solution as well.     

从果子狸谈起——从SARS的流行省思人与自然的关系

果子狸是SARS病毒的宿主之一 ,野生动物是人类SARS的毒源。人工驯养野生动物 ,让人造的化学成分进入了大自然本来的生物过程 ,其产生的危害给世人带来了生态性的灾难。人类要善待自然 ,慎用科技 ,让人的自然体在大自然中正常生息才能达致人与自然的和谐。