弱激光驻波场作用下的无反射势阱

研究弱激光驻波场中的无反射势阱 .利用直接微扰法 ,导出该系统非齐次Schr dinger方程的积分形式的精确解 .分析和数值研究发现 ,该解满足波函数有界的条件 ,但不能表示成初等函数的有限形式 ,并因此具有数值不可算性     

三元等价关系

研究了三元等价关系与二元等价关系的联系,给出它们之间等价性的两个定理。     

Calculating method of contact stress for non-circular gears

According to Hertz theory, the difference of contact stress for non-circular gears and equivalent gears is compared in the paper, a calculating method of contact stress for non-circular gears by using equivalent gears is researched, and computing formulas of power and rotation speed for equivalent gears are deduced. A numerical simulation of contact stress for non-circular gears has also been conducted based on the finite element method. By the comparison of fitting curves, the feasibility of using equivalent gears instead of non-circular gears to calculate the contact stress is testified.     

等同原则在知识产权司法鉴定中的适用

对被侵权的技术和相关技术的特征是否相同或者等同进行认定,是知识产权司法鉴定的重要内容,在这一过程中,等同原则的正确适用非常关键。等同物的判定、等同时间的判定以及本领域普通技术人员的认定,是知识产权司法鉴定中认定技术等同的关键要素,也是困扰司法实践的重要问题。同时为了避免等同原则的扩张可能对公众利益造成的侵害,亦应对等同原则做出必要的限定,以达到合理范围内专利权人利益与社会公众利益的协调平衡。     

有氧运动强度监测指标特征分析与研究

研究了运动指标中的心率、代谢当量、主观感觉程度与运动能量消耗等指标特征,首先,从心率对运动负荷的基本应答特征、运用目标心率安排锻炼负荷强度、心率测量的特征、心率的运动强度监测等方面分析了心率指标特征;其次,阐述了代谢当量指标与主观感觉程度特征及其分级指标;再次,从气体代谢分析仪与心率测试法等方面分析了运动能量消耗测定方法;最后进行了总结与建议。     

等价无穷小在求极限中的应用

对于高职高专学生来说,求极限的方法很多样,掌握起来有困难。等价无穷小替换是在求极限中常用的一种方法。但由于对其理解不够深刻,学生常常感到困惑。本文在等价无穷小替换定理的基础上,推广加减运算、复合函数、幂指函数中的等价无穷小替换,使计算极限达到化简为繁、化难为易的目的。     

J·乔伊斯《青年艺术家的画像》对"发展小说"叙事风格的革新

J·乔伊斯的《青年艺术家的画像》较之传统的“发展小说”,在叙事风格上表现出了大胆的创新。在这部小说中 ,作者运用第三人称内视角来叙述故事。这一叙事模式实现了绝对的客观叙述 ,开创了在“发展小说”中仅用等述的先例 ,淡化了“故事情节”在“发展小说”中的作用 ,从而打造出一部与众不同的意识流实验“发展小说”。     

论苗族文化俗语的等值英译与相对等值英译

主要从理论的角度阐述琦文化翻译中的等值翻译与相对等值翻译相结合的必要性和重要性，并探讨等值翻译与相对等值翻译在苗族文化俗语的英译中的具体运用。     

Estimation of 2-D ARMA model parameters by using equivalent AR approach

In this paper, the problem of estimating the parameters of a two-dimensional autoregressive moving-average (2-D ARMA) model driven by an unobservable input noise is addressed. In order to solve this problem, the relation between the parameters of a 2-D ARMA model and their 2-D equivalent autoregressive (EAR) model parameters is investigated. Based on this relation, a new algorithm is proposed for determining the 2-D ARMA model parameters from the coefficients of the 2-D EAR model. This algorithm is a three-step approach. In the first step, the parameters of the 2-D EAR model that is approximately equivalent to the 2-D ARMA model are estimated by applying 2-D modified Yule-Walker (MYW) equation to the process under consideration. Then, the moving-average parameters of the 2-D ARMA model are obtained solving the linear equation set constituted by using the EAR coefficients acquired in the first step. Finally, the autoregressive parameters of the 2-D ARMA model are found by exploiting the values obtained in first and second steps. The performance of the proposed algorithm is compared with other 2-D ARMA parameter and spectral estimation algorithms available in the technical literature by means of three different criteria. As a result of this comparison, it is shown that the parameters and the corresponding power spectrums estimated by using the proposed algorithm are converged to the original parameters and the original power spectrums, respectively.     

基于等效啁啾光纤光栅的光控实延时技术

本文介绍了一种基于等效啁啾光纤光栅来实现实延时的技术,该技术的使用可以提供雷达所需的实延时精度,并且有利于减轻雷达的重量,降低成本,增大相控阵雷达的工作带宽,是一种前沿的实延时技术。本文对实延时结构进行具体的分析。分析证明该方案可以提供相控阵雷达所需的时延