查询词典 boundary value problem

The solution expression is suitable both for the inner and outer problem with a close boundary, and the calculation of velocity and pressure can be carried out separately, which is an advantage of boundary element scheme.

该方法的积分表达式可同时表示内、外边值问题的解，而且计算速度和计算压力的式子可以分别开，这是用边界积分公式求解的优点。

The modern philologist wants for many times to the idiom to make to mark out boundary, meeting with often again so hard nut to crack; Also therefore make sure the scope of the idiom, make a clear distinction it and other familiar languages, especially with consistently use the boundary of the language, became idiom a define of core problem.

现代语言学者多次想对成语作个划界，又不时碰上这样那样的难题；也因此，确定成语的范围，划清它与其他熟语，特别是与惯用语之间的界限，就成了成语界定的核心问题。

The full field boundary element solutions are solved for the small—scall yielding problem of boundary layer formulation.

针对双材料界面裂纹边界层构形计算了小范围屈服问题的全场解，并与现有理论和有限元结果进行了比较。

The model is a free boundary problem for a system of partial differential equations governing the intratumoral nutrient concentration and the intratumoral pressure. The free boundary is the surface of the tumor.

该模型是一个关于肿瘤内部压力和肿瘤内部营养浓度的偏微分方程系统自由边界问题，其中自由边界是肿瘤外表面。

There is no ferromagnetic material in the outside of ironless PM motors airgap. Because of this characteristic, airgap magnetic field of ironless PM motor belongs to 3-dimentions (3-D) open boundary magnetic field. Engineering problem of open boundary magnetic field is a hot research issue in the computation electromagnetics field recently.

无铁心永磁电机气隙外没有铁磁材料，其自身的结构特点决定了无铁心永磁电机的气隙磁场属于三维开域磁场，开域磁场工程问题的计算是近年来计算电磁学的研究热点之一。

The main contributions of this thesis are as follows:(1)To address the problem of kernel parameterσselection and regulation of the decision boundary in SVDD algorithm,this thesis proposes a new kernel parameter optimization method based on the spheral distribution of samples in kernel space and regulation of the decision boundary method based on KPCA(Kernel Principal Component Analysis).

本论文主要以支持向量数据描述(Support Vector Data Description，SVDD)与随机森林(Random Forests，RF)模式识别工具为基础，对流程工业在线故障诊断的若干问题进行研究，其具体内容如下：(1)针对SVDD的核参数σ优化及其决策边界规整问题，提出了基于核样本球形分布的核参数优化方法与基于核主元分析(Kernel Principal ComponentAnalysis，KPCA)的SVDD决策边界规整方法。

Phase-lagged cyclic boundary condition is implemented by a novel method in conjunction with the developed sliding interface technique to accurately simulate the arbitrary pitch ratio rotor/stator interaction without any modifications of the physics of the problem. It's for the first time to compose the computational area into one structured grids including both rotor/stator of centrifugal or axial turbomachinery with arbitrary pitch ratio. This method can eliminate the iteration of boundary conditions on the sliding interface and calculate the unsteady flow within rotor and stator simultaneously.

为了能够在较小的计算区域内不改变叶型而真实地反映出任意栅距比时的内部非定常流场，并避免近似仍采用相位后滞周期性条件，结合本文发展的网格技术，给出了一种新的实施方法，首次将动、静叶片数不等的离心式/轴流式叶轮机械转子、静子计算区域组合在一套结构化计算网格中，动/静叶排间的滑移界面完全按内场处理，避免了每一时层内，滑移界面处边界条件的迭代计算；并保证了每一时层，滑移界面处流动参数的守恒特性。

The view of anthropocentric value thinks that human has intrinsic value, he is only subject of value, nature and other beings don't possess intrinsic value, they only possess instrumental value.

人类中心主义价值观认为只有人才具有内在价值，人是自然界唯一的主体，自然和其他生命形式没有内在价值，只有工具价值。

Profit model is the strategic issue in the media industry. The dual sales is the core of the media industry.There are some defaults in the profit models such as single, linear and low value-added in the converging trend in the media industry.As the impact of convergence in the media industry appear gradually, the value chain of media industry take on network-based, flexible and similar structure.The innovation of profit model in media industry should focus on value-added, value chain transformation and governance of the value chain management.

内容提要：盈利模式问题是媒介产业发展中的一个战略性问题，二次销售模式作为媒介产业的核心模式在媒介融合的进程中逐渐显露出其单一化、线性化和低增值化的缺陷，由于媒介融合的影响，媒介产业价值链出现网络化、柔性化和同构化的发展趋势，媒介产业在此趋势中应通过价值增值、价值链转换和加强价值链治理实现盈利模式的创新。

The results of study show that operator and consumer have different value cognitive structure, in other words, operators and consumers have different link relations in "attribute - result ","result – value", and "attribute – value". At the same time the results of compare means in "attribute ","result " and "value " also show the difference between operator and consumer for "service content attribute " and "price attribute". There are cognitive differences between operator and consumer for "interpersonal relationship and novelty" and "life entertainment", and for "belonging "and "stimulus" of value.

研究结果显示业者及消费者具有不同的价值认知结构，换句话说，业者及消费者在「属性-结果」、「结果-价值」、和「属性-价值」三种链结关系中表现出不同的链结关系；同时个别在「属性」、「结果」和「价值」的差异检定中亦显示，业者及消费者对於「服务内容属性」、「价格属性」等产品属性有认知上的差异；在消费结果中「人际关系及新奇」和「生活娱乐」有认知差异；最后在「归属感」、「刺激」等价值感受有认知上的差异。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。