- 更多网络例句与有效函数相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Keynesia thinks significant demand is the node of total supply and total demand function, it is balanced dot, this come from at entrepreneur profit the biggest those who change is decision-making, yield the decision from this and the limit efficiency that the significant demand of Keynesia of obtain employment; still contacts consumptive function and capital, regarding them is magnitude of value of a kind of currency, discuss in system of banking of a money put quantity and flow while balanced; in addition, cantabrigian growth model is hind the Keynesia development to Kalaiciji's economics.
凯恩斯则认为有效需求是总供给和总需求函数的交点,它是一个均衡点,这一点来自于企业家利润最大化的决策,由此将决定产出和就业;凯恩斯的有效需求还联系到消费函数和资本的边际效率,把它们看作是一种货币价值量,在一个货币金融体系中讨论存量和流量的同时均衡;此外,剑桥增长模型是后凯恩斯对卡莱茨基的经济学的发展。
-
Owing to the properties of wavelet packet functions such as compact support in time domain, localization in frequency domain and orthogonalities, the performance of the proposed system is enhanced greatly.
为了节约系统带宽,论文提出了小波包函数的"有效支撑长度"的概念,通过合理调节"有效支撑长度"上的小波包函数的长度达到节省系统带宽的目的。
-
Properties of efficient portfolios and the efficient frontier to the model are systematically analyzed. Our main results concerning the properties are: every efficient portfolio can be solved by minimizing portfolio risk under a given level of portfolio return or by maximizing portfolio return under a given level of portfolio risk; on the efficient frontier, the risk is a convex and strictly increasing function of the return and the return is a concave and strictly increasing function of the risk; the utility function on the efficient frontier can be expressed as a quasi-concave function of the risk or the return if the investor's utility function is quasi-concave.
从理论上系统地对该模型下的有效投资组合和有效前沿的性质进行了分析,结果表明:每一个有效投资组合可通过在给定期望收益水平的条件下最小化投资组合风险来获得,或者在给定风险水平的条件下最大化期望投资组合收益来获得;在有效前沿上,风险是收益的严格单调递增凸函数,收益是风险的严格单调递增凹函数;当投资者的效用函数是拟凹函数时,则有效前沿上的效用可表达成风险或收益的拟凹函数。
-
After a power spectrum is constructed, empirical wavelet coefficients are used to detect the jump points in the function to obtain the strong consistent estimator of the position and number of the frequencies. Numerical simulations show this method is reliable.
根据它们的协方差函数可以表示为一个Fourier级数,而其Fourier系数可通过协方差函数的逆变换得到的特性,我们对于零均值的近周期相关序列构造了类似于周期图的函数,并构造其经验小波系数,利用频率处于此函数的尖点的特性,以及此性质在经验小波系数中的反映,来确定频率的个数和位置,所有的估计量都是强相合的,此外,数值模拟的结果表明,我们的方法是有效的。
-
The application of the lattice Boltzmann method in unsteady open channel flows was studied in detail in the paper. An existing lattice BGK model was mended; For the problem of negative local equilibrium and evolutionary distribution, we proposed a lattice Boltzmann model based on cell-population equilibrium, which is a direct non-negative approximation to the continuous Maxwell distribution. The model reduces the transport and collision, two basic evolution steps in the LB model, to transport of the non-equilibrium distribution.
本文系统的研究了格子Boltzmann 方法在明渠非恒定流中的应用问题,改进了一个现有的LB 模型,数值实验表明此改进是有效的;在平衡态分布函数及分布函数的非负性问题上,作者提出了一个基于单元均衡的格子Boltzmann 模型,通过直接对Maxwell 分布函数的离散化实现对速度分布函数的非负离散,这种方法将传统模型演化过程中的碰撞和输运两个步骤直接表现为粒子的输运。
-
It is proved that strictly efficient point set of the objective space is connected when objective function is cone convex-like,and that if objective function is cone convex set-valued mapping,then strictly efficient solution set is also connected.
证明了当目标函数为锥类凸的集值映射时,其目标空间里的严有效点集是连通的;若目标函数为锥凸的集值映射时,其严有效解集也是连通的。
-
Filled function method is an effective deterministic algorithm of global optimization.
填充函数法是全局优化的一种有效的确定性方法,本文对全局凸填充函数方法和一般的填充函数方法分别进行了研究,提出了一个新的全局凸填充函数,给出了基于一类广义全局凸填充函数的几种具体形式。
-
This thesis mainly discuss following issues, Theory and simple expressions for array covariance matrixes are derived when angular spread functions are symmetric distribution functions, i. e. the Uniform distribution, the Gauss distribution, the Laplace distribution and the Von Mises distribution, and a non-symmetric distribution function, i. e. the Gamma distribution. And the relation between the effective signal subspace and the array number, or and the nominal angle of the distributed source, the angular spread, the distributed functions, and the Signal-to-Noise Ratio is gained. The dimension of the effective signal subspace increases with increment of the array number. And it is more obvious to the non-symmetric distribution. The dimension of the effective signal subspace decreases with increment of the nominal angle. And the distributed source is equal to a point source as θ=π/2. The dimension of the effective signal subspace increases with increment of the angular spread.
本论文针对阵列信号处理中广泛存在的分布源现象,主要讨论了以下问题:推导了角度分布函数分别为对称的均匀分布、高斯分布、拉普拉斯分布、Von Mises分布和非对称的伽马分布时,分布源阵列接收信号协方差阵的严格模型和简化模型,得到了单个分布源的有效信号子空间随阵元数、分布源中心角、分布角、角度分布函数和信噪比的变化规律:随着阵元数的增加,对所有角度分布函数的有效信号子空间维数也随着增加,且非对称分布函数的有效信号子空间充满整个空间的可能性更大;随着分布源中心角逐步增加,有效信号子空间维数逐步减小,当θ=π/2时,等价于点源情形;随着分布源分布角逐渐加大,有效信号子空间维数也随之增加,直到有效信号子空间充满整个空间;随着信噪比的增加,有效信号子空间维数有一定程度的减少。
-
So using theory of power series to define and study function is an effective method of deal with question of function.
因此,用幂级数定义和研究函数是处理函数问题的一种有效的手段,并能给问题的解决带来一些方便,但是,幂级数只是函数的一种表示形式,只有与函数的其他表示形式相互协调和补充,才能真正简洁有效地处理函数问题。
-
Firstly, this paper definited pseudometric d for n -foldproduct of σ-algebra A of subsets of a given set X , and definited indicator function ; secondly, gave the concept of differentiable of set function at S° and concept of partial derivative at S° with respect to the ith argument Si through indicator function, and defound the weak efficient solution of and optimality necessary condition; Finally, obtained three weak duality results and strong duality results under generalized convexity conditions.
首先,对已知集X的子集的σ-代数A的n-折积A^n,定义了伪度量d,给出了相应的特征函数〈h,Is〉;其次,通过特征函数给出了集函数在S 可微的定义及集函数在S 关于第i个变量Si的偏导数定义;给出了多目标规划问题的弱有效解概念及的最优性必要条件;最后,分别在目标函数和约束函数的3种较弱凸性条件下,研究n-集函数多目标规划问题的对偶问题,获得了3个弱对偶结果和强对偶结果。
- 更多网络解释与有效函数相关的网络解释 [注:此内容来源于网络,仅供参考]
-
aggregate demand function:总需求函数
我们不难看到,总需求函数(Aggregate Demand Function)和总供给函数(Aggregate Supply Function)就是没有相等的可能!买卖永远不相等--有效需求当然不足. 解决有效需求不足的问题实际上应该是政府怎样通过税收等手段把赚钱的人手里所赚的钱(哪怕是一部分)怎样再回流到买者手里、或者怎样提高个人的消费倾向、或者怎样周转人们
-
Auto:自动的
(1)遇空格,或按"回车"或"跳格"(TAB)键2.主函数中定义的变量也只在主函数(main)中有效,而不因为在主函数中定义而在整个文件或程序中有效,主函数也不能使用其它函数中定义的变量;3.存储方法具体包括:自动的(auto),静态的(static),
-
effectively computable function:能行可计算函数
effective variance of error 有效误差方差 | effectively computable function 能行可计算函数 | efficiency 效率
-
convex function:凸函数
在企业税收呈凸函数(Convex Function)的情况下(如图1所示),有效边际税率为税前价值的递增函数,则企业的税后价值是税前价值的递减函数,企业税前所得的波动将会增加税负,因此公司会有动机使用衍生产品降低税前所得的波动性获得降低税收支出的好处.
-
cost function:代价函数
因为这种算法一般对仿真运行时间代价高昂的非线性问题更有效. 优化器运行50次迭代后分析结果将发现,代价函数(cost function)得到充分改善. 进行最终调节之后,优化器耗时30分钟左右共运行100次迭代以进一步优化那些参数.
-
effective variance of error:有效误差方差
effective number of replications 有效重复数 | effective variance of error 有效误差方差 | effectively computable function 能行可计算函数
-
extern:外部的
2.主函数中定义的变量也只在主函数(main)中有效,而不因为在主函数中定义而在整个文件或程序中有效,主函数也不能使用其它函数中定义的变量;3.存储方法具体包括:自动的(auto),静态的(static),寄存器的(register),外部的(extern)
-
hashing function:杂凑函数
此种函数,一般称之为杂凑函数(Hashing function)或键值对应位址转换(key to address transformation). 对於有限的储存空间,能够有效使用且在加入或删除时也能快的完成,利用杂凑法是最适当不过了. 因为杂凑表搜寻在没有碰撞(collision)及溢位(overflow)的情况下,
-
signum:正负号函数
significant figure 有效数字 | signum 正负号函数 | similar 相似
-
work function:功函数
阴极的金属必需具备低功函数(work function)的特性,才能,才能有效的将电子注入有机层内,有效的将电子注入有机层内,镁((MgMg)的功函数够低()的功函数够低(3.5eV3.5eV),也),也相当稳定,十分符合元件的要求.