The DNA and protein synthetic rates have relations with the somatic embryo increment and tissue differentiation.

Changes of respiratory metabolism pathway during the tissue differentiation and bud formation in tobacco callus cultures

烟草愈伤组织分化和芽原基形成期间呼吸代谢途径的改变

Based on the variation of fatty acid composition, DHA participated in tissue differentiation and organization.

脂肪酸变化研究表明：DHA主要参与细胞和亚细胞结构形成。

The expression of TOPO ⅱ was associated with tissue differentiation ( P < 0.05).

TOPOⅡ表达与分型有关（P＜0.05）。

Hormonal Regulation of Vascular Tissue Differentiation in Graft Unions

嫁接接合部维管组织分化的激素调节

Gondii antigen was expressed in tissue differentiation sections.

弓形虫感染胚胎时，弓形虫抗原主要出现在组织分化区。

Higher expression of VEGF was observed in cases with higher tissue differentiation degree ( P < 0.05).

随着癌组织学分级的升高，VEGF表达水平也有逐渐升高趋势（P

Studies on tissue differentiation of the roots of Angelica sinensis

当归根的组织分化研究

Studies on molecular biology of vascular tissue differentiation

维管组织分化的分子生物学研究

Through analysis of biomechanics property of soft tissue, this paper applies the visco-elastic model in the study of soft tissue deformation in surgery simulation.

本文通过对软组织生物力学特性的分析，将粘弹性模型应用于手术仿真中软组织变形的研究。

As a result of the doctors contact most is the soft tissue in surgery, so the simulation of soft tissue deformation is one of the key technologies in virtual surgery, and it regulates the development of virtual surgery.

由于在实施外科手术的过程中，医生接触的大部分是人体软组织，因此，人体软组织形变的仿真是虚拟手术的关键技术之一，并严重制约着虚拟手术技术的发展。

In order to improve the accuracy of simulation in the case of large deformation of tissue, we developed a total Lagrange finite element tissue deformation simulate method and update Lagrange finite element tissue deformation simulate method.

在大形变条件下组织形变精确仿真方面，本文提出了完全拉格朗日格式下的粘弹性有限元组织形变仿真算法和更新拉格朗日格式下的粘弹性有限元组织形变仿真算法。

In addition, the soft tissue is divided as deformation area and un-deformation area, and the calculation is only executed in deformation area, which reduces the calculation scale.

其次，将软体组织分为形变区域和非形变区域，仅对形变区域的部分进行形变计算，减少了计算规模。

Experimental results show that the new method can be used in real-time simulation of soft tissue with large deformation.

实验结果表明，该模型适合于软组织大形变的实时仿真。

Methods By referring to the computerized tomography pictures of the human body and using plane strain and finite element method ( FEM), we applied plane strain hypothesis to establish a model for calculation of the brain tissue deformation caused by rotational inertia loading during vehicle crash accident.

方法参照人体CT图片，利用平面应变假设建立模型，采用有限元法仿真计算旋转惯性载荷作用下脑组织的变形。

This method can reduce computational time, improve the efficiency of soft tissue deformation and maximal meet the requirement of real-time. A good virtual surgery simulation system must meet the requirements in vision and sense of touch at the same time.

良好的虚拟手术仿真系统必须同时满足视觉和触觉感官的要求。

Regarding the facial soft tissue deformation problem in simulation of plastic surgery, this paper propose a simplified method of human facial modeling using geometric finite elements which is based on cylinder projection.

针对模拟整形手术中面部软组织变形问题，本文提出一种简化的基于柱面投影的几何有限元建模方法。

This system can emulate two basic bone fracture surgeries and predict the soft tissue deformation after operation. In addition, it has the self-learning function.

该系统能针对两种基本的截骨手术进行模拟和手术后软组织形变预测，并具有自学习功能。

Objective To establish the plane strain model of brain tissues on mid-sagittal plane and discuss the relation between the brain tissue deformation and brain injury.

目的建立人体正中矢状平面头部组织的平面应变模型，探讨脑组织变形与大脑损伤间的关系。

Soft tissue deformation is divided into three parts, the first, deformation pretreatment, and second deformation calculation, third, deformation mapping results.

软组织形变可分为三大部分，一是形变前期处理，二是形变计算，三是形变结果绘制。

A quasi-static finite element approach is presented to simulate soft tissue deformation during robot-assisted needle insertion with satisfactory precision.

为了提高机器人辅助针穿刺精度，提出一种对软组织变形分析的准静态有限元法。