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一个微分
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  a differential
    THE GONVERSE PROBLEM OF A DIFFERENTIAL EQUATION
    一个微分方程的反问题——关于井场泵杆振动方程的研究
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    ON SOLUTION OF A DIFFERENTIAL EQUATION AND ITS APPLICATION
    一个微分方程的解及其应用(英文)
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    D is a 3*1 matrix, it is a differential equation group.
    这样求出的D为3*1矩阵,它是一个微分方程组。
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    More than one method for working out a differential equation
    一个微分方程的多种解法
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    For the multi-item continues time problem, by use of a differential function that the optimal value function satisfies, we construct the retailer's optimal price policy and maximal expected revenue function in case of discreet price set.
    对于多产品连续时间收益管理问题,我们通过最优值函数的所满足的一个微分方程构造出了离散价格集下零售商的最优报价策略和最大期望收益函数。
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  “一个微分”译为未确定词的双语例句
    A DIFFERENTIO-INTEGRAL IDENTITY AND ITS APPLICATION
    一个微分-积分恒等式及其应用
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    A Theorem of Global Existence and Uniqeness of Solutions of Differential Equations
    一个微分方程解的整体存在性及唯一性定理
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    On the Existence and Uniqueness of Positive Periodic Solution of a System of Differential——Difference Equations
    一个微分差分方程组数学模型周期正解的存在唯一性
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    Generalization of a differential-integral identity and its application
    一个微分—积分恒等式的推广及应用
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    In chapter two, utilizing the topological degree method, the existence of fixed points for compact continuous operators(1/μ)T (μ≥1) in PN spaces is studied and anapplication for a class of differential equations is given.
    第二章,在概率赋范线性空间中用拓扑度的方法研究了紧连续算子(1/μ)T(μ≥ 1)的不动点存在性问题,并给出了一个微分方程的应用。
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  a differential
Calderón's formula associated with a differential operator on (0, ∞) and inversion of the generalized abel transform
      
For a differential equation, a theoretical proof of the relationship between the symmetry and the one-parameter invariant group is given: the relationship between symmetry and the group-invariant solution is presented.
      
Then a differential attack algorithm on the nonlinear combined sequences was proposed.
      
Certain Ergodic Properties of a Differential System on a Compact Differentiable Manifold
      
These methods were extended to the problem of periodic trajectories of the controlled system obeying a differential inclusion.
      
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In a research project conducted by the department of soil and water conservation, Beijing College of Forestry, it was considered necessary to telemeter the capacitive parameters directly in forecasting mud flow. The driving cable was used for this purpose to connect a capacitive transducer located at a distance of 100 to 1000 meters away.A differential analysis of measuring error caused by the driving cable while transmitting information at long distance was made in this paper.Details in method of calculation...

In a research project conducted by the department of soil and water conservation, Beijing College of Forestry, it was considered necessary to telemeter the capacitive parameters directly in forecasting mud flow. The driving cable was used for this purpose to connect a capacitive transducer located at a distance of 100 to 1000 meters away.A differential analysis of measuring error caused by the driving cable while transmitting information at long distance was made in this paper.Details in method of calculation and limits for the parameters were shown. Application of this new technology to telemetering the change of soil water has brought about a satisfactory result.

激励电缆(driving cable又译驱动电缆)是接有激励电源的以层屏蔽通讯电缆。这种新技术应用在泥石流研究工作中,要求能在100至1000公尺的远距离直接传递电容传感器参数的讯息。为此本文对激励电缆在远距离传递讯息时引起的测量误差,作一个微分的分析研究,从而导出实用的计算方法和应用的极限参数。这种新技术首先实际应用在我院水土保持系泥石流预报研究的土体水分动态远距离监测系统中,并收到了较好的效果。

It is shown that: (a) although the grey models GM(1,1) have the property of differential equations, they are not ordinary differential equations but differential equation groups with adaptive properties; (b)although the models have the property of difference equations, they are not ordinary difference equations but difference equation groups of variable structure with one-step difference and multi-step differential; (c) although the models have the property of exponential laws, they are not ordinary exponential...

It is shown that: (a) although the grey models GM(1,1) have the property of differential equations, they are not ordinary differential equations but differential equation groups with adaptive properties; (b)although the models have the property of difference equations, they are not ordinary difference equations but difference equation groups of variable structure with one-step difference and multi-step differential; (c) although the models have the property of exponential laws, they are not ordinary exponential laws but grey exponential laws for which there is the possibility of appearance of singularity, e. g. singular points may appear at α =±2; singular phenomenon may appear at α>2.

本文的研究表明,GM(1,1)具有微分方程性质,但不是一般的微分方程,而是具有适应性的微分方程群;它具有差分性质,但不是一般的差分方程,而是具有一步差分多步微分的变结构差分方程群;它具有指数律性质,但不是一般的指数律,而是可能出现奇异点或奇异现象的灰指数律。文中论证了GM(1,1)实质上是一个微分、差分、指数兼容的模型群;获得了GM(1,1)的一些重要性质。

The large scale system′s decomposition theory is used to study the harmonic oscillation problem of this system. By building a specific function, a differential large scale system′s bound is transformed into an algebra inequality and the per-io dic solution is obtained from it. Secondly, extreme stability of large scale system is studied by upper limit. In the end of the paper, uniqneuess of periodic solution is derived.

本文利用大系统分解理论来研究时变大系统之平稳振荡问题。首先通过构造一个特殊的函数,将一个微分大系统的有界性问题转化为一个代数不等的求解问题,由此得出用期解之存在性。然后,由上极限理论对大系统之非常稳定性进行研究,由此导出周期之唯一性。

 
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