To obtain a constant gradient magnetic field outside unilateral nuclear magnetic resonance (NMR), optimal design method based on finite element method (FEM) and topology optimization is proposed.
为了在单边核磁共振仪器外产生梯度恒定的磁场，提出利用基于拓扑优化和有限元法的优化设计方法。
On the basis of making the achievement previously, it was suggested and perfected what the types of the plane unilateral and bi-directional and spatial mapping infinite element.
在早先取得成果的基础上，提出并完善了平面单向、双向映射无限元及空间映射无限单元的类型。
This paper presents a kind of two-element array, discusses its possibility of being used for array miniaturization and analyses the main factors for influencing its unilateral directivity.
本文介绍了一种单向性二元阵，探讨了其在基阵小型化中应用的可能性，分析了影响这种阵单指向性的主要因素。
The dynamic interaction between an embedded object and surrounding media with a unilateral frictional contact interface is studied by time-domain boundary element method.
应用时域边界元法研究了结构介质动力相互作用问题。
Objective:To construct a normal L3-L5 spinal segment model by using finite element method and investigate the biomechanical characteristics of unilateral pedicle screws fixation.
目的：建立人正常L3~L5节段三维有限元模型，分析腰椎单侧椎弓根螺钉固定融合的生物力学特性。
Objective:To construct a normal L3-L5 spinal segment model by using finite element method and investigate the biomechanical characteristics of unilateral pedicle screws fixation.
目的：建立人正常L3~L5节段三维有限元模型，分析腰椎单侧椎弓根螺钉固定融合的生物力学特性。
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