查询词典 optimal process

All of these provide hardware platform for fermentation process modeling and optimal control.

长期以来对它们的控制手段及控制策略不断改进，控制精度不断提高[2]。

During the minimizing process of variational assimilation, calculation efficiencyis very important and the optimal step size greatly influences the algorithm efficiency.

在变分同化的最小化过程中，计算效率无疑是最重要的，而优化步长的计算又直接关系到算法效率的成败。

Under certain assumptions, the incoming of aircrafts can be abstracted as mathematics model, and the scheduling process can be defined as an optimal value function.

在一定假设条件下，大量航空器的进场行为可以抽象成数学模型，而排序过程可以被定义为一个求最优值的函数。

For the process of forming member gear, the machine setting parameters for Free-form generators can be determined by either direct or equivalent transformation, both methods coincide with each other. For generated pinion, the author utilizes a imaginary modified member gear to get original machine setting parameters for traditional cradle-type generator, and then establishes a mathematical model including the second and third order contact parameters of the gear pair for optimal synthesis to optimize the quality of contact transmission of the gearing.

对于成形法加工大轮可以直接或通过等效转化的办法确定Free-form型机床的调整参数，二者是完全一致的；对于展成法加工小轮，作者利用假想修正大轮的概念获得传统摇台类机床调整参数的初值，然后建立包含齿轮副二阶接触参数和三阶接触参数的优化数学模型，以优化齿轮副的啮合传动质量。

Applying whitening process and Gram-Schimdt orthogonalization and orthogonal subspace projection, an optimal transformation matrix is designed to minimize the ratio of intra-class distance to inter-class distance while imposing the constraint that different class centers after transformation are along specifically directions that are orthogonal each other.

以线性变换后样本的类内距离与类间距离之比最小作为准则函数，同时加上约束条件使变换后的样本中心沿着特定的正交方向，通过白化变换、Gram-Schimdt正交化和正交子空间投影求解约束准则函数得到最优变换矩阵。

Relevance theory, an adequate theory of communication, holds the view that communication is an ostensive-inferential process in which people instinctively abide by the principle of relevance, that is, every act of ostensive communication communicates a presumption of its own optimal relevance.

关联理论是一个比较完整的交际理论。它认为交际是一个明示推理的交际过程，人们在这个过程中会下意识地遵循关联原则，即每一种明示行为都传递这样一个假定：该行为本身具备最佳关联性。

RT considers communication as an ostensive-inferential process and it has the assumption that every ostensive communicative behavior has the optimal relevance, i.e.

关联理论因其强大的解释力，影响已经远远超过了语用学领域。

Fourth,Simul8 will be introduced in logistics simulation for the first time in this paper,and use it to build the simulation model of distribution and procurement business process;at the condition of out-of-stock,it uses Arena to construct the optimal order point simulation model under VMI,and advances the simulated optimization program.

第四，本文首次将Simul8引入物流仿真领域，并用其构建了采购配送业务流程仿真模型；在允许缺货的条件下用Arena构建了VMI下最优订货点仿真模型，并进行了仿真运行和仿真分析，提出了仿真优化方案。

Based on modern optimization theory and optimal control theory, this dissertation studies some questions as follows:1. The optimization model of parameter identification of three-dimensional geologic history numerical simulation, algorithm and its applicationGeologic history numerical simulation is a basic content of basin numerical simulation, and the porosity is the major parameter in the evolution and development process of oil-bearing basin. According to the sedimentation and burial mechanism, the physical and chemical principles of oil geology, the mudstone porositys non-linear parabolic partial differential equation has been established.

本文应用现代最优化及最优控制理论，对如下一些问题进行了研究： 1、三维地史数值模拟的参数辨识优化模型、算法及应用地史模拟是盆地数值模拟的一个基础性的研究内容，地层孔隙度是含油气盆地地史演化发育过程中的重要参数，根据地层沉积埋藏机理和石油地质的物理化学原理，通过引入数学物理方程概念，建立了泥岩三维孔隙度场方程，根据问题的特点，给出了方程的定解条件，对方程的动边界也给出了处理方法，并且证明了解的存在性与惟一性，在此基础上建立了以当今实测数据为拟合准则的三维地史数值模拟的参数辨识优化模型，这是一个含有二阶偏微分方程约束的泛函极值问题。

The optimal control problem for the FCC process is solved using the MFNN (multilayer feedforward neural network) for system recognition and modeling, periodogram analysis for model testing, and the advanced Frank-Wolfe algorithm for steady state optimization computation.

为解决催化裂化过程的优化控制问题，采用多层前馈神经网络进行辨识、建模，用周期图检验法对模型检验，用改进的Frank-Wolfe算法进行稳态优化计算，并以大港炼油厂实际生产过程的稳态数据进行试验和验证，说明神经网络适合于解决非线性复杂生产过程的辨识、建模和稳态优化控制问题。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。