查询词典 threedimensional

Cast mould of CT scan is an effective means for threedimensional reconstruction of hepatic portal vein, which services presurgery plan and operation of laparoscopic hepatectomy .

管道铸型标本CT扫描法是肝门静脉系进行三维重建的一种有效技术方法，对腹腔镜肝外科术前的计划制定和术中操作具有临床意义。

Through simulation of the real process of thomcolumbar burst fracture and use of modem dynamics techniques, the present study was (1) to investigate the kinetic relationship between structural damage and impact energy absorption and dynamics mechanism of thoracolumbar burst fracture by quantitative analysis of various injured segments;(2) to explore the instability mechanism of L1 vertebral burst fracture and its injury threshold by three-dimensional analysis of the injured segment with stereophotogrammetry in combination of transient physical parameters, anatomy and image;(3) to explore the corresponding relationships between impact energy, geometry parameters and biomechanics by geometry and biomechanical analysis of thoracolumbar burst fracture, which may provide an objective standard for evaluation of spinal injury severity and experimental evidence for adoption of biomechanical treatment in clinic;(4) to evaluate the fixation effect of different instruments and the effect of intervertebral bone graft on segment fixation by analysis of the threedimensional stability of different internal fixation instruments and their decompression of the spinal canal, which may provide experimental evidence for therapeutical selection for thoracolumbar burst fracture in future; and finally to investigate the effect of various instrument fixation on dynamical characteristics by comparison and quantitative analysis of frequency and amplitude responses, which may provide certain theories and experimental evidence for application of vibration test to judge the stability of the spine.

本研究从胸腰段脊柱爆裂骨折发生的实际过程出发，以现代动力学检测及计算机多通道高性能数据采集分析系统等高新技术为基础，实时量化分析损伤节段的工程参数，揭示了结构破坏与能量吸收的变化规律，探讨了胸腰段脊柱爆裂骨折的瞬态损伤机制；利用三维立体摄像技术，对不同损伤程度的节段进行三维运动分析，结合瞬态物理参数、影像学和病理解剖，明确了〓椎体爆裂骨折的失稳机制及损伤阈值；通过对胸腰椎爆裂骨折的几何学变化及生物力学分析，明确了撞击能量与几何参数、几何参数与生物力学的相应关系，为评判脊柱损伤程度提供了客观标准，为治疗中采取适宜的生物力学方法提供了实验依据；通过对比分析不同内固定器械的三维稳定性和对椎管的减压作用，评价不同器械的复位固定作用，同时比较椎体间植骨对节段固定作用的影响，为今后临床胸腰段脊柱爆裂骨折的治疗选择提供依据；利用振动测试与分析技术，比较及量化分析了不同致伤状况的频幅响应特征，比较分析了各种器械固定对动力学特性的影响，为今后临床建立基于振动测试与分析技术判断脊柱稳定性的诊断方法，提供了一定的理论和实验依据。

Human bone marrow mesenchymal stem cells grow well in the threedimensional environment of partially demineralized bone matrix, which is a good method for culture of human bone marrow mesenchymal stem cells in vitro.

hBMSCs在部分脱钙骨支架的三维立体环境中生长良好，是一种较好的体外培养方法。

Application of dilating Gabor transform to threedimensional shape analysis.

基于傅里叶变换轮廓术方法的复杂物体三维面形测量。

ABSTRACT Stereoscopic vision is the most important passive technique in obtaining threedimensional surface information, which directly simu...

立体视觉是被动测距方法中最重要的距离感知技术，它直接模拟了人类视觉处理景物的方式，可以在多种条件下灵活地测量景物的立体信息。

The author puts forward a method to solve survey control of partial complex space structure by coordinate system conversion and application of threedimensional coordinate system during construction surveying of 108m height exhaust chimney in Tianwan Nuclear Power Plant.

通过坐标系的转换及三维坐标系在田湾核电站108m高排风塔的施工测量中的应用，提出解决局部复杂空间结构测量控制的一种方法。

On the basis of chamber theory and industrial application,in this paper,a practical threedimensional mathematics method of turbulent combustion in combustion chamber of oil-fired float glass furnace has been established.

文摘：本文首先在综合横焰玻璃熔窑理论及实践的基础上，建立了具有实用意义的燃油浮法玻璃熔窑火焰空间燃烧过程的三维数学模型。

Use brain threedimensional orientation apparatus operates implanting cannulae into the lateral ventricle, and every group was injected with microsyringe.

使用脑立体定位仪行侧脑室埋管手术及侧脑室微量注射。

From the governing equations satisfying the balance between pressure gradient force, inertial centrifugal force and viscous force, the threedimensional velocities of tornado are obtained, and then its funnel structure is depictured theoretically. It shows that the funnel structure consists of vertex flow and jet flow.

本文用气压梯度力、惯性离心力、黏性力三力平衡的柱坐标下的大气动力和热力学方程组，求龙卷风的三维速度场，从理论上绘制出龙卷风的三维漏斗型结构。

A lower tan δ value is a clear manifestation of increase gel firmness and viscosity while a high tan δ value is a reflection of loss in threedimensional network as indicated by the high tan δ value of S1 (resistant starch without gum and chemical agents) due to extrusion.

值下降表明胶体强度和粘度上升，而从S1样品（指未添加任何胶和化学试剂的样品）很高的δ值可以推测出样品高δ值是由于三维空间结构的损失导致的。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。