| 1. | Semidirect products of two semigroups to be completely archimedean semigroups 完全阿基米德半群的半直积 |
| 2. | Archimedean vector lattice 阿基米德向量格 |
| 3. | Archimedean screw pump 阿基米德螺旋泵 |
| 4. | Analysis of archimedean spiral antenna using moment method with curved segmentations 曲线分段的矩量法分析阿基米德平面螺旋天线 |
| 5. | Relation h ( superscript * ) on a completely archimedean semigroup is investigated , and some equivalent conditions for h ( superscript * ) to be a congruence are given 摘要给出了完全阿基米德半群上关系h (上标* )是同余的若干等价条件。 |
| 6. | In addition , a counterexample is constructed to show that the characterization and the related results do not hold for the non - archimedean riesz space r # with the lexicographical ordering 同时构造一个反例说明,对于r ~ n按字典顺序做成的非阿基米德riesz空间的情形,这个刻画及相应结果并不成立。 |
| 7. | It points out that the implication operator i ( x , y ) defined by strict t - norms is not continuous at ( 0 , 0 ) and discusses under what conditions a t - norm induced by an implication operator is archimedean 指出了由严格的仁范定义的蕴涵算子方(叨在叮0 )处不连续;并给出了什么样的蕴涵算子定义的t范是阿基米德的 |
| 8. | In this paper , the orthomorphisms on the archimedean riesz space r " with the usual coordinatewise ordering are characterized . also , the direct sum decomposition of an order bounded operator with respect to the orthomorphisms is obtained 本文首先刻画了n维欧氏空间r ~ n按通常的偏序做成的阿基米德riesz空间上正交射的特征,以此可对r ~ n上序有界算子作关于正交射的直和分解。 |
| 9. | In this thesis , the concept of " fractal " and the recursive algorithm of fractal structure are depicted . the wavelength - independent character of archimedean spiral antenna and the space filled property of koch monopole are analyzed by the method of moment 本文介绍了分形的基本概念和分形结构的迭代算法,采用矩量法分析了阿基米德螺旋天线的频率无关特性和koch单极天线的空间填充特性。 |
| 10. | Since complicated differential and integral operations were involved in the kernel of the integral equation , we simplified the equation and got the nakano equation . as instances , the planar archimedean spiral antenna , the planar equiangular spiral antenna , the monofilar helical antenna , the conical helical antenna with fixed ascending angle and the conical equiangular - spiral antenna were analyzed through the moment method . all of the results matched fairly well with the references and experiment results 这种方法的积分方程的积分核里含有复杂的微积分运算,为了简化计算,本文在推广的海伦积分方程的基础上,对方程进行了简化,推导了nakano方程,并以平面阿基米德螺旋天线,平面等角螺旋天线,轴向模圆柱螺旋天线,具有固定升角的圆锥螺旋天线和圆锥等角螺旋天线为例,用矩量法求解了天线上的电流分布,研究了螺旋天线辐射的宽频带特性,所得的结果均与参考文献吻合很好。 |