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In this paper, adipate -intercalated LDHs were prepared by direct anion exchange method,acidic one step synthesis method and alkaline one step synthesis method,and were characterized by XRD and IR.

采用阴离子直接交换法、酸性和碱性条件下原位一步合成法分别制备了Mg2Al-己二酸根插层水滑石,用XRD、IR对合成的样品进行了组成和结构表征,DTA结合不同温度下焙烧样品的XRD和IR分析研究了样品的热分解过程。

A special antisymmetric structure is proposed, and based on it, the direct design method is given to design the anti-synchronization controller. To prevent the controller design by active control method from indiscrimination, a simplified judging method of negative definite matrix is introduced to give the anti-synchronization active design of controller.

提出了一种特殊反对称结构,基于此给出了反同步控制器的直接构造法;针对主动控制法设计控制器的盲目性,引入了判定矩阵负定的简化方法,给出了实现反同步的主动控制法。

The principle and system structure of direct measurement method and indirect measurement methods ( including thrust wall pressure integral method and ballistic pendulum method) are introduced.

针对脉冲爆震发动机瞬时推力、平均推力测量问题,介绍了直接测量法和间接测量法(包括推力壁压力曲线积分法和抛物摆法)的测量原理及系统构成。

In this article,the synthesis method of Phenanthraquinone is discussed and five main methods are compared,such as the method of using biphenyl and derivative of diphenylethane and the method of Diels-Alder and rearrangement as well as the direct oxidation.

本文对菲醌的合成方法进行了综述并对其几种方法作了比较,其合成方法主要有以联苯及二苯乙烷衍生物为关键中间体的方法、以Diels-Alder及重排反应为关键步骤,以及直接氧化等五类合成方法。

This paper quantitates financial risk by constituting the model of measurement financial risk. And the samples are from the public companies'merger and acquisition from 2002 to 2005, this paper demonstrates perfectly the influence of financial risk of acquisition companies from different payment methods. The result of test analysis shows: in one side, the theory of risk-return is unfit in China (by being educed conclusions by other students: different payment methods bring different return, then the author detrusions different payment methods bringing different financial risk, and being tested direct proportion each other); in the other side, this paper answers different payment methods bringing different degree financial risk of acquisition companies: the smallest financial risk from cash payment method, the mean from commingle payment method, the biggest from stock payment method, which can supply reference in the choice of rational companies between payment methods and financial risk .

通过建立企业财务风险度量模型,将企业财务风险量化,并以中国上市公司2002年—2005年间的并购案中所采用的支付方式为样本,对我国上市公司并购中不同支付方式对并购方财务风险的影响做一个较系统、完善的实证检验,一方面从理论上验证了风险-收益理论的在我国的不具有适用性(通过对前人研究结论:不同支付方式带来不同收益,进而反推不同支付方式带来不同的财务风险,验证得出二者成正比关系);另一方面回答在我国目前市场条件下并购中的不同支付方式引起收购公司不同程度的财务风险,其中现金支付方式下给收购公司带来的财务风险最小;混合支付次之,股票支付方式下财务风险最大,能给企业在并购时选择支付方式与财务风险的最佳组合提供参考。

A novel no touch measuring method for traditional products was put forward and a precise model of Direct Linear Transform was presented for the aberration in the images occurred at every turn. Rectangle mark tag and location parameter are no longer needed in this algorithms. A method of tolerance reckon by curve equation was also provided. In order to raise the operation speed Hough circle detection method was improved. In the meantime circle detection method to images with more than one circle was applied, so that the concentricity calculation is possible.

论文的创新点是,提出了传统机械产品的非接触式测量方法,特别针对图像采集环节最容易出现的畸变现象,提出了一种严密的直接线性变换模型,该算法既不需要在影像上有框标,也不需要有摄影机内外方位参数的起始近似值,具有显著优点;提出了利用曲线的方程来确定公差的方法,对传统的Hough圆检测方法进行了改进,提高了检测速度,同时将圆检测用于存在多圆的图像,使多圆的同心度检测成为可能。

We put forward a new theoretical method named direct laser spectroscopy method, it holds some goodness which spectral method has not, it also showed that it was one of the best methods in molecular dynamics simulation by combined with the best method named chebychev polynomial expansion in time dependent wave packet theory. This had been approved bv example of H〓.

我们提出了一种新的理论方法即直接激光光谱法,这种方法具有以往常用的谱方法所不具备的优点,即高效性,并且通过与含时波包理论中最具有优越性的切比雪夫多项式展开方法结合,使得这种方法在动力学模拟中具有极大的优势,并以H〓分子为进行实验例。

Since the 1990s, he has proposed that the fundamental task of Chinese teaching is language learning, that its purpose is to improve students' ability to comprehend and apply Chinese, the essence is to direct students acquire the language while practicing on the basis of their development and the major method language-sense teaching. He has asserted that the language-sense teaching method must follow the steps of feeling, apprehending, accumulating and using of language. The practice and analysis of language-sense method must be of equal importance, and closely combined to moral education, thought training, aesthetic edifying, and Chinese language impartment. He has also claimed that teaching material should be compiled with more contents, more refinement and higher starting point in terms of students' actual development of language skills. His analysis of the long-term misplays in Chinese language education is profound and the repositioning and re-interpretation to the facts as purpose, task, essence, subject, method and materials of Chinese language teaching are full-scaled. In terms of teaching, Hong has stressed on the cultivation of the ability of language acquisition and intuition.

上世纪90年代以来,他先后提出语文教学的根本任务是学习语言;语文教学的目的是提高学生正确理解和运用祖国语言文字的能力;语文教学要以学生发展为本,&变讲堂为学堂&,指导学生在实践中学习语言;语文教学的主要方法是语感教学;语感教学要遵循&感受、领悟、积累、运用&的途径,坚持语感实践与语感分析并重,并与思想教育、思维训练、审美陶冶、语文知识教学紧密结合,与生活密切联系;根据学生语言发展的实际,大容量、高起点、选精品编写教材等一系列主张,从理论上对语文教学的长期性失误作了深刻剖析,对语文教学的目的、任务、本体、主体、方法、教材等问题进行重新定位和诠释。

One is low valence vanadium oxide thin films were deposited by direct current facing target magnetron sputtering firstly, and then thermal oxidated; the other is high valence vanadium oxide thin films were deposited by ion beam sputtering, then thermal deoxidated. Vanadium oxide thin films with phase transition were obtained at the lower thermal process temperature 300℃, which is compatible with MEMS technologys. The composition of VO_x thin film fabricated by first method includes mainly VO_2, V2O3 and VO_, the TCR is -2.25%/K, the TCR gradually increases with phase transition temperature decreases. The composition of VO_x thin film fabricated by the second method includes mainly VO_2, V2O5 and V2O3 , and the resulting VO_x thin filmTCR is -3.0%/K. The TCR of phase transition vanadium oxide thin films made by second method is higher than that made by first method for the existance of V2O5 in thin films.

分别采用直流对靶磁控溅射制备低价态氧化钒薄膜再附加热氧化处理的方式,和射频离子束溅射制备高价氧化钒薄膜附加热还原处理的方式获得了具有相变特性的氧化钒薄膜,第一种方式获得相变特性氧化钒薄膜的热处理温度最低为300℃,克服了以往高温条件下热处理不能与MEMS工艺兼容的缺点;相变特性氧化钒薄膜的组分以VO_2为主,含有V2O3和VO_,室温TCR为-2.25%/K;室温电阻温度系数随相变温度的降低逐渐升高;采用第二种方式获得的相变氧化钒薄膜的组分以VO_2为主,含有V2O5和V2O3,室温TCR可达-3.0%/K;分析发现,具有相变特性的氧化钒薄膜中含有V2O5时,室温电阻温度系数明显增大。

Several types of processes and characteristics of super-fine SSP are analyzed and compared, they are high frequency plasma spherical method, direct current plasma spherical method, carbon pole electrical arc spherical method, gas burnt flame spherical method, high temperature fused quartz jet and chemo synthesis spherical method.

本文对国内的研究开发现状和国际球形石英粉的生产现状进行了分析研究;分析比较了高频等离子球化法、直流等离子体球化法、碳极电弧球化法、气体燃烧火焰球化法、高温熔融喷射以及化学合成球化法的工艺特点。

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