时间子

The main object of this research is to investigate synthesis of Cu23Cl Cu and CuO nanoparticles through electrospinning and heat-treated method The research is mainly focused on preparative parameter and the change of heat-treated temperature to form the nanoparticles inlaid in silicon fibers the shape and color change are dicussed First of all to prepare the Polyvinyl butyral and silica dioxide complex nanofiber by electrospinning and then to investigate different heat-treated temperature and reactive time to being an influence on the products The results detected by SEM XRD TEM EDS FTIR combined sol-gel process and electrospinning can prepare Polyvinyl butyral and silica complex nanofiber The experimental result is found when heat-treated temperature is 100~4750C it can produce Cu23Cl nanoparticles; Above 4750C~ 4900C it can produce Cu nanoparticles; Above 450~7000C it can produce CuO nanoparticles And the viscosity is lain between 20~40cp and the sol-gel process time is 3hr it can produce the thinner fibers The average diameter of the fibers are 107 88±21 01nm;Due to the nanoparticles inlaid in the silica fibers the thinner fibers can be inlaid the smaller nanoparticles so this is the result that the experiment is expected To calcine the complex fibers is to produce surface silica fibers contain Cu23Cl Cu and CuO nanoparticles due to surface plasma resonance it make the color of the fibers become yellowish green from light white green turn into the red nuclear finally As the experimental result to utilize sol-gel process combine electrospinning can produce porous silica fibers contain Cu23Cl Cu and CuO nanoparticles

本研究旨在探讨「利用放电纺丝和热处理法来合成Cu23Cl、Cu和CuO奈米粒」之研究，实验著重在制备参数与热处理温度变化对所形成的奈米粒镶嵌在二氧化矽纤维中的形态与颜色变化探讨。首先，利用放电纺丝法制备出聚乙烯醇缩丁醛及二氧化矽之奈米纤维，比较不同的热处理温度与反应时间的改变对产物生成产生影响，进而研究不同热处理温度和时间对生成奈米粒的影响。产物经由SEM、XRD、TEM、EDS和FTIR等仪器分析结果显示，结合溶胶-凝胶法(sol-gel process)和放电纺丝法可产生聚乙烯醇缩丁醛及二氧化矽复合奈米纤维。实验结果发现，若热处理温度在100~4750C下可得到Cu23Cl奈米粒，475~4900C 可得Cu奈米粒，450~7000C以上可得 CuO奈米粒。而黏度介於20~40cp间和溶胶-凝胶时间为3hr时，可产生直径比较细的纤维，纤维直径为107 88±21 01nm；且由於奈米金属颗粒镶嵌在二氧化矽纤维中，直径比较细的纤维，可以得到比较小的奈米金属颗粒，这与实验预期相符。而锻烧此复合物产生多孔的二氧化矽纤维并包含Cu23Cl、Cu和CuO奈米微粒时，由於表面电浆子共震关系，而使纤维颜色由淡白黄绿色变成黄绿色，再变红褐色。由实验结果得知，利用溶胶-凝胶法(sol-gel process)结合放电纺丝法和不同热处理温度，可产生Cu23Cl、Cu和CuO奈米粒镶嵌在二氧化矽纤维。

In this paper, using time Petri nets as specification models, system functionality and timeliness are first verified. Then a heuristic algorithm is proposed to optimize the system energy, which is driven by subtasks' energy-gradients and can be further simplified in the case that TPNs are composable. The experimental results show that the proposed methods can support the high-level low-power synthesis of real-time systems with results close to the optimum one, but with very low time complexities.

以时间Petri网为模型，验证系统功能性和实时性，在此基础上，提出了一种由子任务的能耗变化率驱动的启发式能耗优化算法，并针对一类特殊形式的网模型———可组合时间Petri网，设计了相应的简化算法·实验说明，上述算法时间复杂度低，且优化效果接近最优值，能够为实时系统低能耗高层综合提供有力支持

After this, the AL4 elicitor concentration and handling time were optimized for improving the essential oil yield in suspension cells of A.

此后以茅苍术悬浮细胞挥发油产量为指标，优化了内生真菌AL4诱导子添加浓度和诱导子诱导时间这二个因素。

The paper proves that the search process of the non-crossover genetic algorithm is an ergodic homogeneous Markov Chain. The proof of global convergence of NCGA is presented is this paper. The upper bound of convergence speed of the NCGA is the same as the CGA. The possibly of retain the promising genes of NCGA is larger than CGA.

对于本人可以找到的32种典型的非线性优化测试函数，应用无交叉算子遗传算法，与基于经典遗传算法相比，在相同的进化代数的条件下，NCGA同样取得了略优的收敛速度，在相同CPU计算时间上NCGA也取得略优的结果； 3 提出了复合算子遗传算法。

Thirdly, on the base of the existent error estimate of elliptical Galerkin projection operator, obtain semi-discrete and complete-discrete error estimates betwent EFG solution and exact solution of parabolic partial differential equation. Semi-discrete error estimate show that the rank of r is accordance with the approximation rank of subspace S_h. Complete-discrete error estimates show that it not only have relation with radius r of domain of influence, but also have relation with the step length of time variable and the way of discrete.Lastly, give typical examples and draw up procedures of MATLAB.

再次，在"椭圆Galerkin投影"算子的误差估计的基础上，对用EFG法解抛物型偏微分方程的EFG解与精确解之间作了半离散和全离散的误差估计，半离散的误差估计表明所给出的误差界限关于r的阶是与子空间S_h的逼近阶相一致的，全离散的误差估计表明所产生的误差不但与影响域半径r有关，而且与离散时间变量的步长τ及其离散方式有关。

This procedure was repeatedly done on the same plots three times in every fructification season, and resulted to all positive effect for RNAs supplement.

试验最后结果表明在形成子实体的两周时间内关联物使松茸子实体的产量和数量显著增加。

To prediting the parallel execution time of the parallel program that is composed of a number of sub-tasks, each of which has identically, independent distributed random execution time, this paper presents the parallel execution time predicting method which is based on the Johnson distribution.

为解决由具有独立同分布随机执行时间的子任务组成的并行任务的执行时间预测问题，提出了基于Johnson分布的并行执行时间预测方法。

Firstly, the basic concept and convention about formalized stand language LOTOS is introduced, and, the language was improved and extended by adding discrete time domain and time operator to confirm its syntax and semantics rules.

本文首先论述了形式化规范语言 L OTOS的基本概念与约定，对其进行了基于时间的改进和扩充，引入了离散时间域和时间操作算子，然后确定其相应的语法定义和语义规则，通过仔细分析分布式环境下的多媒体同步问题，基于时间扩充的 L OTOS，给出了一种特殊的多媒体同步系统以及具体的算法描述。

Firstly, the basic concept and convention about formalized stand language LOTOS is introduced, and, the language was improved and extended by adding discrete time domain and time operator to confirm its syntax and semantics rules. Then, a special multimedia synchronization system and implement algorithm is proposed by anatomizing multimedia synchronization problems in distributed environment.

本文首先论述了形式化规范语言LOTOS的基本概念与约定，对其进行了基于时间的改进和扩充，引入了离散时间域和时间操作算子，然后确定其相应的语法定义和语义规则，通过仔细分析分布式环境下的多媒体同步问题，基于时间扩充的LOTOS，给出了一种特殊的多媒体同步系统以及具体的算法描述。

A time-delay reconstruction of a phase space equal to the original system has been made by analyzing of observed time series of current signal and vibratory signal, and the methods of choosing properly the embedding dimension and delay-time for phase space reconstruction have been studied in detail.

本文利用振动信号和电流信号时间序列，采用时间延迟法，重构了系统的等价相空间，并详细研究了嵌入维数及时间延迟的选择对重构相空间的影响，计算了铣削加工典型过程的Lyapunov指数谱，分析了系统的混沌特性；同时采用P-G算法，计算了混沌动力系统的奇异吸引子的分维数，分析了分维数与系统状态的关系，定量地指示出系统的混沌程度，同时也反映出系统的不可预报程度。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。