查询词典 forward difference quotient

The paper proposes the TLS approach that minimizes the two kinds of errors.A Rayleigh Quotient formulation based on regularization is used to enforce a smooth solution.Then a conjugate gradient algorithm is used to minimize the modified RQ function.

该方法能同时最小化这两种误差，采用基于正则化的Rayleigh商来光滑解，用共轭梯度算法来迭代求解该正则化Rayleigh商的最小化函数。

Considering the randomness of both elastic module and mass density of the structures, the element′s structural stiff and mass matrix have been built, the structure dynamic characteristics is analyzed based on probability, and the digit characteristics of natural frequency random variable is derived from the Rayleigh′s quotient.

利用随机因子法，建立了考虑结构弹性模量和质量密度同时具有随机性时结构的刚度矩阵和质量矩阵；从结构振动的瑞利商表达式出发，利用代数综合法推导出结构特征值随机变量数字特征的计算表达式。

Combining Rayleigh quotient of the stiffnesss matrix,the index used to estimate the manipulator continuous stiffness was defined,and spatial graphs of the stiffness performance were plotted.

文中还结合刚度矩阵瑞利商定义了连续刚度判定指标，绘制了刚度性能空间图，进一步探讨了该机构的方向刚度特性，为平面并联弹性铰机器人机构刚度的分析提供了一种新颖通用的方法。

In study of the truss structural dynamic characteristics analysis, randomness of the structural physical parameters and geomtric ones are all considered. The finite element model of the stochastic truss is built and the random functions of its natural frequencies are obtained by use of the Rayleigh quotient. Employing probabilistic distribution function expression for the random functions, through a series of mathematical processing including determination of limits of integrals, variable substitution etc., the probaabilistic density function for the truss natural frequencies are gained to realige accurate calculation for the reliability of the truss natural frequencies.

考虑结构物理参数和几何参数的随机性，通过构建随机参数桁架结构的有限元模型，利用瑞利商公式获得了结构固有频率随机函数的计算表达式，应用随机函数的概率分布函数表达式，通过确定积分区间、变量替换、积分顺序变换等一系列数学上的处理，获得结构固有频率的概率密度函数，进而实现对结构固有频率可靠度的精确计算。

By introducing the steepest descent algorithm , conjugate gradient algorithm , Newton algorithm , Rayleigh Quotient Iteration algorithm and variable metric algorithm , the MSBMDA is implemented iteratively.

MSBMDA算法将盲多用户信道估计或多用户信息符号估计的模糊度限制到以±1，±j为元素的对角矩阵内，并消除了用户次序的模糊度。

The relative change between inflection points of respiratory quotient and HbO2 in skeletal muscle during the process of increased intensity sports is investigated. The occurrence priority and interval regularity of the two based on time is compared, and the physiological mechanism of synchronisms is analyzed.

研究在递增强度运动过程中人体骨骼肌内氧合血红蛋白(HbO2)含量相对变化的拐点与呼吸商拐点，比较两者在时间上出现的先后次序及规律，分析它们不同步的生理机制。

The oxygen uptake and the respiratory quotient of the participants who did the Yuan-ji dance Part Ⅲ were recorded with K4B^2, and the statistics were compared with the maximal oxygen uptake and then their exercise intensity and energy expenditure were calculated.

实验设计是以受试者从事元极舞第三集，记录运动过程的摄氧量与呼吸商，然后与最大摄氧量作比较并推算出运动强度和能量消耗。

NS had higher respiratory quotient at 10~20cm, thus younger microbiology, and CN had younger microbiology at 0~10cm. This was good to sustain soil qualified characters and sustainable potentiality. This showed that mechanic tillage and biological tillage were of the same importance in some degree. It was important for reducing energy cost to enhance the effect of microbiology in soil nutrtient transferring.

免覆在10~20cm土层呼吸商较高，微生物年轻化，常无在0~10cm土层微生物年轻化，对维持土壤的优良性状和可持续利用潜力有益，这在一定程度上说明机械耕地和生物耕地的同等重要性，充分提高土壤微生物在养分转化中的作用对于降低农业生产中的能耗有重要意义。

NS had higher respiratory quotient (qCO2) in 10-20 cm soil layer and CN had higher qCO2 in 0-10 cm soil layer.

免耕秸秆覆盖在10~20 cm土层呼吸商较高，而常规耕作无秸秆还田在0~10 cm土层呼吸商较高。

We examined the metabolic change in responses to anoxia in American cockroach, Periplaneta Americana by measuring the O2 consumption, CO2 production and respiratory quotient.

本研究测量美洲蟑螂的氧气消耗量、二氧化碳排出量与呼吸商，以探讨缺氧对其代谢的影响，连续在氮中缺氧超过38小时的蟑螂，除活动力下降外，行为上无明显的变化。

Mr. Putin said there were signs of genocide against the Ossetian people.

普京说，有迹象表明对南奥塞梯人进行了种族清洗。

What I'm trying to say, Tristan is...

特瑞斯坦。我想说的是。