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Compared with results of FEM and other methods, the results of BEM can satisfied the boundary conditions more accurately, It is very important for analyzing the rolling processes.

计算结果表明和有限元法及其他数值方法相比更能精确地满足边界条件，为精确分析轧制过程提供了一种新的计算方法。

objective to analyze the ct appearance of thyroid carcinoma and the differential diagnosis of various thyroid disease.methods 83 cases of thyroid carcinoma and 119 cases of various benign disease with surgical and pathologically proved were analyzed retrospectively.results the ct findings of 83 cases of thyroid carcinoma include:ill defined nodules boundary (n=62),irregular necrosis(n=59),cystic(n=23),"peninsula" enhancing tubercles around the tumour(n=25),"mastoid" tubercles around the tumour(n=11),calcification(n=55) including large scale(n=27) and local(n=28),trachea invasion(n=15),neck or supraclavicular lymph node metastasis(n=27),the accurate of ct to differentia benignancy from malignancy on thyroid disease was 93.6%(189/202).conclusions "peninsula" enhancing tubercles was the characteristic sing of thyroid carcinoma,"mastoid" enhancing tubercles or large scale calcification was the affirmative sign,the ct signs was vary useful to differentiating thyroid disease.

摘 要］目的：分析甲状腺癌的ct表现及鉴别诊断要点。方法：回顾性分析经手术病理证实的83例甲状腺癌和119例甲状腺良性病变的ct表现，归纳总结不同病变的ct特征。结果：83例甲状腺癌中：边界不清62例，不规则坏死59例，囊性变23例，出现"半岛状"强化结节25例，"乳头状"强化结节11例，钙化55例(其中弥漫性钙化27例、局灶钙化28例)，侵犯气管15例，颈部或锁骨上淋巴结肿大27例，ct对甲状腺病变的良恶性鉴别诊断符合率93.6%(189/202)。结论："半岛状"强化结节是甲状腺癌的特征性表现，"乳头状"强化结节及弥漫性钙化可做为甲状腺癌的肯定性征象，掌握各种甲状腺病变的ct表现特点，对病变的定性诊断及鉴别诊断具有重要意义。

Control equation, boundary condition and Bernoulli equation are derived in blade-attached system.

在匹配渐近展开法分析中引入一假想速度位，导出固连坐标系中的控制方程、边界条件和Bernoulli方程。

The issue of connectivity and boundary effect of the improved Bernoulli model are addressed, according to the requirement of direct key establishment.

给定微观个体节点的本地连通度，随机图模型是分析宏观网络的几何性质的有力工具。

Matlab Application of different boundary conditions of Bessel equation calculation of the source.

应用matlab对不同边界条件下的贝塞尔方程进行计算的源程序。

Moreover, the quasi-analytical expressions of the relative concentrations at the mobile region and the immobile region are deduced respectively by using Bessel equation, Bessel function and the method of Laplace transform under the initial concentration zero and the first or second boundary condition of a semi-infinite one-dimensional space.

并分别在初始浓度为零，半无限一维空间内第一类边界条件和第二类边界条件下，利用Bessel方程、Bessel函数和Laplace变换法推导出了可动区和不动区溶质相对浓度的准解析表达式。

The boundary issues with India and Bhutan are in the process of being settled.

中国与印度、不丹的边界问题正在朝积极方向发展。

By using symmetry and boundary conditions the field and input impedance of finite wide-angle biconical antenna can be derived by modal analysis, which generally results in solving infinite linear equations.

模式匹配法利用有限长双锥天线的轴对称性求解天线电磁场边值问题，通常导致求解无限多个线性方程而得不到严格解。

It sits approximately 6-8 ft. below sea level at its northern boundary of Bayou Bienvenue.

它的北部边界大概在Bienvenue河口的海平面下6-8英尺处。

The geometry of bifurcate artery and the pulsating blood flow boundary conditions are established.

建立分岔动脉血管几何模型和脉动流边界条件。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。