Research of marginal functions and marginal maps;
关于边缘泛函与边缘映射的研究
Using the time domain separation technology through edge diffraction and virtual instrument test technology,we do the experimental study of how the free-field method is applied to structure-borne sound insulation measurement.
本文在引入边缘衍射时域分离技术和虚拟仪器测试技术的基础上,以铝板为样品,以半消声室为测试场所,对自由场法在结构隔声测试领域中的应用开展了实验研究,并对边缘衍射、测试脉宽、系统增益和平均时间等因素对测试结果的影响进行了理论分析。
In this paper,a numerical method to evaluate the edge diffraction effect on sound insulation measurement in free-field was investigated using finite element method(FEM) and boundary element method(BEM) based on the commercial sound and vibration analysis software LMS-SYSNOISE.
本文基于边界元和有限元方法对自由场材料隔声测试中存在的边缘衍射影响进行了数值评估模型研究,理论评估模型、分析条件和分析步骤均以实际测试为基础,并以水下钢板法向隔声测试为例计算分析了边缘衍射对轴向接收和偏轴向接收的影响程度和特点。
The theory of Incremental length diffraction coefficients (ILDC) is one of the efficient methods to calculate the edge diffraction of electrically large scaled complex objects.
增量长度绕射系数理论(ILDC)是对电大尺寸复杂目标进行边缘绕射计算的有效方法之一。
An expression of edge diffraction field in the original GRECO literature is in error, the error-corrected formulas are derived by using method of equivalent edge.
在边缘绕射场的计算方面 ,指出了相关文献中存在的错误 ,给出了基于等效电磁流法 (MEC)和物理绕射理论 (PTD)的边缘绕射场计算式 ,及与物理光学 (PO)场叠加求取RCS的完整表达式。
In this paper, the increment edge diffraction coefficient is achieved through the increment length diffraction coefficient (ILDC) and the equivalent electrical current method(MEC), and the far fields in an arbitrary azimuth angle is related to arbitrary incident field through the derived diffraction coefficient, so that the high-frequency scatted field can be computed conveniently.
结合微分长度绕射系数和一致性等效电磁流推导得到了微分边缘绕射系数 ,将任意观察方向上的远区散射场与任意方向入射的平面波以绕射系数形式联系起来 ,得到一种实用简便的高频散射计算方法。
On Incremental Edge Diffraction Coefficients
用微分边缘绕射系数法计算多边形平板的散射远场
The margin of flesh around a wound.
伤口的边缘围绕伤口的肉边
An electron beam does not diffract at atomic scales, so it does not cause blurring of the edges of features.
由于电子束在原子尺度不会绕射，所以它不会使得图案细节的边缘模糊。
Line detection method based on nun-wrap FRIT
基于无“缠绕”FRIT目标边缘检测方法
lying around or just outside the edges or outskirts.
环绕着分布或者正好分布在边缘、边界的外面。
The border of epidermal tissue surrounding a fingernail or toenail.
甲周皮围绕手指甲或脚指甲的表面组织边缘
the line formed by the edge of a garment around the neck.
由环绕着脖子的衣物的边缘形成的线路。
A raised rim or border around an opening, as in a ship's deck, designed to keep out water.
舱口栏板船的甲板上围绕舱口通道的高边缘栏板或边缘，用于防止水流入
Computation of Wave Diffraction by 2D Obstacles Using a Scaled Boundary Finite-Element Method;
应用比例边界有限元法求解波浪对物体的绕射
Taiwan is but one of many places situated along the @Ring of Fire@ encircling nearly half the globe around the Pacific Ocean.
台湾是诸多太平洋边缘围绕近半个地球的“火环”地区之一。
In printing, the space surrounding the type area, comprising head, tail, back and foredge.
在打印技术中，围绕打字区域的空间，包括头、尾、后部和前边缘。
All that is left is a thin rim of cortex or glial tissue with meninges surrounding a fluid-filled cavity.
剩下的是薄薄的皮质边缘或包绕液体腔的脑膜神经胶质组织。
This optic is diffraction limited at the center field but not at the edge.
衍射极限只在中心部分起了作用而不是边缘。
Art produced from border existence also reflects on actual life.
边缘状态中的艺术也是现实生活的折射。
Improved Edge Detection Method for the Measurement of the Liquid Refractive Index Using CCD;
CCD测量液体折射率时边缘检测算法的改进
Investigation on the characteristic of scattering field distribution for underwater flat structure with multiple edge shapes
水下复合边缘扁平结构散射声场特性研究(英文)
A Sub-pixel Edge Detection Method for Non-diffraction Laser Image
一种无衍射激光图像亚像素边缘检测方法
Investigation on the Characteristic of Scattering Field Distribution for Underwater Flat Structure with Different Edge Shapes
水下不同边缘扁平结构散射声场特性研究(英文)