常数函数
- 名constant function
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对于广义的Eady模型,讨论了密度函数是常数函数与指数函数两种情形,分别得到了非线性稳定性定理及线性稳定与非线性稳定一致的条件。
For the generalized Eady model , two cases were discussed according to the prescribed reference-state density function are constant function and exponential function , respectively . Both nonlinear stability theorem and the condition of the linear criterion coincide with the nonlinear one are obtained .
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同时该模型能够用一般的分段常数函数来定义初始水平集函数,即水平集函数不必初始化为符号距离函数。
Moreover , the level set function can be flexibly initialized with a piecewise constant function rather than a signed distance function in practice .
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介绍了无序二元固溶体的9种晶格常数函数;
Nine lattice constant functions of disordered binary solid solutions are introduced .
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对常数函数理解有一定困难;
There are difficulties understanding constant functions .
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无粘问题的弱熵解是含有有限个激波的分片常数函数,且含有激波的相互追赶及激波与边界相撞两种相互作用。
The weak entropy solution of the problem is a piecewise constant function with finitely many shocks , in which the interaction is overtaking of shocks and colliding of shocks with the boundary .
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求解分段函数应用题的障碍主要来自于阅读理解和加工操作方面,有的学生没有写成分段函数的形式是因为对常数函数的理解存在困难,部分学生对题意理解不准确。
Some students can not write the form of segmented function due to the difficulties in the understanding of constant functions and the meaning of the questions . Fourth , the learning hindrances in integral function application problems are having trouble in decoding and processing .
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本文对抛物型方程讨论了分片线性试探函数空间和分片常数检验函数空间的一种变更的广义Galerkin方法,即集中质量的方法。
In tise paper we consider a modification of the generalized Galerkin method using piecewise linear trial and piecewise constant test space for parabolic equations , the so called of lumped masses .
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化学键单元的元素全部是分子力学力场弹力常数的函数。
The entries in the sub-stiffness matrix of the chemical bonds elements are the functions of the force-field constants .
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功率反射系数是各层的厚度、磁导率和介电常数的函数。
Power reflection coefficient is a function of the thickness of each layer , the magnetic permeance coefficient and the dielectric coefficient .
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第三章研究信号函数为分段常数非线性函数时模型解的渐近行为。
In the last chapter we study the asymptotic behavior of solutions to the model when the signal function is a nonlinear constant function .
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有了介电常数分布函数的傅立叶展开系数做基础,用平面波展开法计算了任意形状二维介质光子晶体的带隙结构,求解带结构的主要方法是通过计算本征方程的特征根。
With dielectric constant distribution function of Fourier coefficients as a foundation , we calculated the arbitrary shape two-dimensional photonic crystals ' bandgap structures by PWM ( Plane Wave Expansion Method ) .
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该评估由计算得到,算法公式被表示成系统误差的加权均方根值的函数和飞行员超前时间常数的函数。
The ratings were calculated , using an expression that is a function of weighted RMS ( root mean square ) values of the system erros and the pilot 's lead time constant .
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分光光度法测定高铁酸锶的K(SP)~○常数和热力学函数
Determination of K ○ SP Constant and Thermodynamic Functions of Strontium Ferrate
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高铁酸镉的K(SP)~O常数和热力学函数的测定
Determination of K_ ( SP ) ~ O Constant and Thermodynamic Functions of Cadmium Ferrate
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Sobolev不等式中的最佳常数及其达到函数
Best Constants and Extremal Functions for Sobolev Inequalities
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运用一阶单时间常数低通函数模拟运算放大器的开环增益,对RC桥式振荡电路进行线性分析,得出最大振荡频率为运算放大器增益带宽积的16.67%。
The maximum frequency of RC-bridge oscillator is 16.67 % of gain bandwidth product of amplifier analyzed based on a first-order single time constant lowpass function model .
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DLR型k-ε紊流模型的模型常数和模型函数的选择及应用
Selecting and Application of Model Constants and Model Functions of DLR k - ε Turbulence Model
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当S值呈水平线、直线及二次曲线分布时,可分别选r(t)为常数、线性函数及二次函数;
When the distribution of S value appears to be a constant , a straight line or a conic curve , the r ( t ) can be chosen correspondingly as a constant , a linear function or a conic function .
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我们通过最佳Sobolev-Hardy常数的达到函数,应用拉直边界的方法,验证方程对应的泛函满足(PS)C条件,从而证明了这个定理。
By the achieving function of the best Sobolev-Hardy constant and the means of straightening the boundary , we find the equation 's energy function satisfy the ( PS ) c conditions , so we can prove the theorem .
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讨论了平衡水相酸度、萃取剂浓度、温度对萃取平衡的影响,计算了反应的浓度平衡常数和热力学函数,考察了萃合物的IR与NMR谱。
The extraction reaction of Sc ( III ) can be expressed respectively as follows : The equilibrium constants and thermodynamic functions of extraction reactions are calculated . The IR and NMR spectra of the extraction complexes of Sc ( III ) are discussed as well .
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温度升高,水解速率常数呈指数函数关系递增。
The hydrolysis rate constant increases at a exponential function with temperature increase .
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关于具有常数模插值函数的定理
A theorem on interpolation functions of constant modulus
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应用特征矩阵法研究介电常数受任意函数调制的一维光子晶体的带隙结构及其特性
Band Gaps and Characters of One-dimension Photonic Crystal With Dielectric Constant Modulated by Random Function
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核磁共振法测定烷基膦酸-硝酸铀酰体系的配位体交换反应速度常数及热力学函数
Determination of ligand exchange rate constants and its thermodynamic functions in alkyl phosphonate-uo_2 ( no_3 ) _2 systems by 1H-NMR
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用脉冲应答法测定吸附平衡常数&传递函数法和富里叶分析法
The Measurement of the Adsorption Equilibrium Constant by Impulse-Response Technique & The Transfer Function Method and the Fourier Analysis Method
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一个无理数的无理数次方是否有可能是有理数?人们采用某常数作为指数函数中的底,这个常数是无理数。
A certain constant has been adopted as a standard to use in exponential functions . It is an irrational number .
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针对控制增益为未知常数和未知函数两种情形,分别提出分散自适应滑模控制器设计新方案。
Considering two cases that the system has constant control gains or function control gams , two novel decentralized adaptive sliding mode control schemes are presented , respectively .
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利用平方慢度梯度为常数的分布函数进行解析射线追踪其表达式结构简单而又精确,在程序实现上是很方便的。
Programming analytical ray-tracing by making use of square slowness gradient distribution formalism , its expression constitution is simple and accurate , so it is also easy to complete program .
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并对供应商管理库存模式下零售商总需求为常数和为函数的两种情况建立模型,并利用迭代的方法求解需求为函数时的算例。
Then a model with invariable demand and a model with function demand under vendor managed inventory mode have been established respectively and the iterative method is used to handle the later case .
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本文讨论了在荷载分布不同,地基弹性抗力系数为常数及线性函数时,锚固深度对桩强度的影响。
The influence of anchor depth on the strength of the anchor stake is discussed under the conditions of different kinds of external load and the coefficient of foundation being constant or a linear function .