查询词典 hilbert problems

Firstly, through applying Hilbert-Sobolev norm to measure fidelity term, a total variation filter is used to smooth the normal vectors of the level curves of a noise image. And then, a model is constructed to find a surface which fit smoothed normal vectors.

该方法首先引入负指数Hilbert- Sobolev范数度量逼近项，对图像水平曲线的法向量场进行全变差正则化磨光，然后构造出一个曲面拟合模型，拟合磨光后的流场。

In the same time, after shortly review the Halclanes description of the quantum Hall effect on 2-sphere S2, we obtain the corresponding noncommutative algebra An and the Moyal structure of the Hilbert space.

同时在回顾了Haldane在二维球面S~2上对量子Hall效应的描述，我们构造了S~2的非对易代数及其Hilbert空间的Moyal结构。

By an appealing parameterization and projection techniques that use the reproducing kernel Hilbert space norm,recursions for the effective parameters and a sparse Gaussian approximation of the posterior process are obtained.

通过利用参数化和再生核Hilbert空间范数的投影技巧，得到优化后的参数和后验过程的稀疏高斯逼近。

In this dissertation, some researches are developed to overcome these disadvantages and to improve the image compressing quality with fractal Peano-hilbert scanning curve.

对此，本文结合DCT变换的特性，利用分形的Peano-hilbert扫描曲线，对基于DCT变换的图像编码方法进行了研究，并提出了改进方法。

For the need of scrambling some images in latter work, Hilbert curve for image scanning is studied in depth, and a fast algorithm for it based on matrixes is presented in the thesis.

由于在后面的研究中需要置乱某些图像，本文还深入研究了基于矩阵运算的Hilbert曲线扫描矩阵的快速生成，并给出了一个有效的新算法。

Oil-water two-phase flow ; Venturi tube ; Hilbert-Huang transform ; support vector machine

油水两相流；文丘里管； Hilbert-Huang变换；支持向量机

Flow regime and void fraction are important parameter in gas-liquid two-phase flow, the relation of differential pressure signal coming from Venturi tube and the flow regime of gas-liquid two-phase flow was studied in this paper, A kind of flow regime identification method of gas-liquid two-phase flow based on Hilbert-Huang Transform and fuzzy inference was put forward, the familiar flow regime identification of gas-oil and gas-water two-phase flow was achieved.

两相流动是一个十分复杂的过程，参数较多，检测相当困难。流型、空隙率是气液两相流中非常重要的参数，而且测量比较困难，还影响两相流其它参数的测量。

It is described that how to generate SIP from the original remote sensing image and how to organize and index the image blocks in SIP by using Hilbert space-filling curves and the unique GSG units' codes.

分析了全球剖分格网与影像金字塔的优点与不足，结合两者的优势提出了剖分影像金字塔模型及建塔策略，利用全球剖分格网面片编码的唯一性和Hilbert曲线空间连续性对影像块进行索引与组织。

4The fundamental of designing weighing rail with single-measure section is obtained, and the work of the research to process testing data of overload and imbalanced load is completed by introducing Hilbert-Huang transform.

4研究并得出了以单测量区剪力型称重轨为基础研制高速超偏载检测设备的设计原则，并引入Hilbert-Huang变换完成了对超偏载检测数据处理技术的研究工作。

In Chapter 2, an existence theorem is obtained for periodic solutions of non-autonomous second order systems with even-typed potentials. We also investigate solutions of linear bounded positive self-conjugation operators equations in Hilbert Space by variation methods.

第二章主要利用临界点理论中的归药方法、极小作用原理研究具偶型位势的二阶非自治系统周期边值问题，得到了周期解的存在；利用变分方法证明了Hilbert空间中有界线性正自共轭算子方程解的存在性。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。