| 1. | S german standard methods for the examination of water , waste water and sludge ; physical and physicochemical parameters group c ; determination of tritium 德国检验水废水和污泥的标准方法.污泥和沉积物 |
| 2. | German standard methods for analysing of water , waste water and sludge ; physical and physical - chemical parameters group c ; determination of temperature 德国检验水废水和污泥的标准方法.物理和物理化学特 |
| 3. | German standard methods for the examination of water , waste water and sludge - physical and physico - chemical parameters group c - part 10 : calcit saturation of water 德国检验水废水和污泥的标准方法.物理的及物理化学 |
| 4. | German standard methods for the examination of water , waste water and sludge ; physical and physico - chemical parameters group c ; determination of the oxidation reduction potential 对水.废水和淤泥进行检查的德国标准方法.物理和物理 |
| 5. | By using the characters and advantages of wavelet transform with mra and local time - frequency domain , the feature parameter group which reflecting gear fault features is built 摘要运用小波变换的多分辨和时频局部化特性,建立故障徵兆的初始徵参数集合。 |
| 6. | German standard methods for the analysis of water , waste water and sludge ; summary action and material characteristic parameters group h ; determination for the chemical oxygen demand ; short duration method 德国对水.废水和污泥的标准检验法.综合作用和材料特 |
| 7. | German standard methods for examination of water , waste water and sludge ; summary action and material characteristic parameters group h ; determination of the chemical oxygen demand in the range over 15 mg l 德国对水废水和污泥的标准检验法.总的作用参数和材 |
| 8. | Then the parameter group and identifmbility criterions were discussed . the identification algorithm based on the simulated annealing - simplex shape algorithm was proposed 对基于静力位移结构识别问题的参数分组及可辨识性标准进行了讨论,建立了基于模拟退火-单纯形的完全非线性识别算法。 |
| 9. | To make up the shortages in practice of that network , the thesis synthetically exerts the principal components analysis clustering analysis and fuzzy c - means to offer the initial training samples for the network , then makes use of the genetic algorithm to find the best parameters group , in the end of this thesis , as an example , evaluates the credit grades of the 57 pieces of customers of a domes tic pharmaceutical group , giving out each customer ' s credit grade and the degree belonging to that grade as basis for the enterprises to investigate the credit status and determinate the quota 为克服该网络实用中的不足,综合运用主成份分析( pca ) 、聚类分析和模糊c -均值( fcm )等方法,为该网络提供初始训练样本,并采用遗传算法对该网络关键参数组合进行寻优。最后以国内某制药集团57份客户信用评分结果为例,进行应用分析,给出每个客户的信用等级和对该等级的隶属度,作为企业审查客户信用水平、确定信用限额的依据。 |
| 10. | In the fourth part , by using the bifurcation theory of planar dynamical systems and the method of detection functions , the paper gives a configuration of limit cycles forming compound eyes . with the help of numerical analysis ( usi ng maple ) , it is shown that there exist parameter groups such that a z7 - equivariant planar polynomial vector field of degree 7 has at least 36 limit cycles with z7 - symmetry 然后,对于一组特定的参数值,研究了它的相轨线的变化趋势;第四部分指出:在一定的条件下,利用平面动力系统分支理论以及判定函数法,在计算机数学软件( maple )的帮助下,得到结论: 7次z _ 7 -等变平面向量场至少有36个极限环,形成具有z _ 7 ?对称性的极限环分布。 |