搜索结果: 1-15 共查到“micro-CT”相关记录19条 . 查询时间(0.093 秒)
![](http://www.firstlight.cn/upload/imgfile/20248/22/2024822164930668.png)
小动物活体三维多模式成像系统(三维光学成像和micro CT一体机)(图)
中南大学 湘雅医学院 多模式 成像系统
2024/8/22
小动物活体三维多模式成像系统(三维光学成像和microCT一体机),生产厂家:荷兰MILabs公司,型号:U-OIBLT/FLT/CTXUHR,制造国家:荷兰。
评价BS镍钛系统维持根管解剖原始形态的能力。方法 将20个离体牙根按照随机数表法分为两组(n=10),分别用BS蓝色小旋风(BS组)和WaveOne (WO组)以逐步深入法预备根管。预备后用Micro-CT对各牙进行扫描,Mimics软件测量其近远中根管壁的厚度,计算距根尖 1 mm、3 mm、5 mm、7 mm、9 mm处根管偏移量。
在水稻脱粒、储运、加工过程中,外界机械作用力是造成稻谷损伤破损的主要方式,造成的内部裂纹肉眼无法观察但影响稻谷的存储、加工以及种子的发芽率等。该文利用质构仪对稻谷进行挤压力学特性试验,分析稻谷损伤破碎过程;对受不同载荷的稻谷进行CT扫描试验,结合数字图像处理方法对稻谷进行损伤表征分析与三维重构,旨在提出一种新的稻谷内部损伤定量评价方法。结果表明:伪彩色图像处理可以提高CT图像的视觉分辨率;灰度值以...
Hopfield Networks in Relevance and Redundancy Feature Selection Applied to Classification of Biomedical High-Resolution Micro-CT Images
feature selection image features pattern classification
2015/7/28
We study filter–based feature selection methods for classification of biomedical images. For feature selection, we use two filters — a relevance filter which measures usefulness of individual features...
基于micro CT扫描技术的鲤骨骼和显微结构分析
鲤 micro CT 骨 显微结构
2014/4/5
了解活体鲤(Cyprinus carpio)骨结构、形态、连接、空间分布以及骨骼矿物质组成对鲤的选育、行为学研究以及肉品加工有重要的意义。X射线显微CT技术(micro CT)对样品没有破坏,可实现活体检测,并能获取活体任意形态的结构参数。因此,文章通过这项技术来研究活体鲤的骨骼状况。结果显示,脊椎骨与头、尾相连,胸鳍位于头骨后,背鳍、腹鳍和尾鳍与整个脊椎骨并不相连。骨体积分数和骨小梁厚度在腹鳍较...
用DSS喂饲小鼠建立小鼠IBD模型, 在建模的第0、8、13 天分别用碘帕醇灌胃加腹腔注射的方法造影并micro-CT扫描降结肠壁厚度, 结果第8天和第13天分别为0.4586±0.04 mm和0.40325±0.03 mm, 显著(P<0.001)大于对照组(0.28±0.02 mm)。同时检测小鼠体重变化、临床评分、结肠病理切片并评分, 发现结肠壁厚度变化趋势和常规指标一致。应用micro-C...
用DSS喂饲小鼠建立小鼠IBD模型, 在建模的第0、8、13 天分别用碘帕醇灌胃加腹腔注射的方法造影并micro-CT扫描降结肠壁厚度, 结果第8天和第13天分别为0.4586±0.04 mm和0.40325±0.03 mm, 显著(P<0.001)大于对照组(0.28±0.02 mm)。同时检测小鼠体重变化、临床评分、结肠病理切片并评分, 发现结肠壁厚度变化趋势和常规指标一致。应用micro-C...
Three-dimensional Observation of Decrease in Pulp Cavity Volume Using Micro-CT: Age-related Change
Pulp chamber Secondary dentin Micro-CT
2010/12/1
We investigated three-dimensional decrease in the volume of the pulp chamber caused by age-related secondary dentin formation using micro-CT and evaluated the applicability of the results to evaluati...
利用Micro-CT建立蝙蝠发声器官的三维数字模型
Micro-CT 蝙蝠 数字立体模型
2009/11/17
研究蝙蝠的超声定位特性对智能设备的性能提高具有重要的借鉴意义,精确的生物模型是此类研究的前提. 简述Micro-CT的重构原理,并应用该设备与计算机相结合制作了中国大菊头蝙蝠超声波发声器官的数字三维立体模型. 该数字模型精确度高,并可根据研究需要变化模型矩阵的大小. 该方法及中国大菊头蝠鼻叶数字模型此前国内未见报道.
Mineral Concentration of Natural Human Teeth by a Commercial Micro-CT
Micro-computed tomography (micro-CT) teeth mineral concentration
2009/9/14
This study aimed to evaluate a commercial micro-CT system (μCT 20) for quantitative analysis of mineral concentration in human enamel and dentin using different methodologies, and thereby compare the ...
An In Vivo 3D Micro-CT Evaluation of Tooth Movement After the Application of Different Force Magnitudes in Rat Molar
Tooth movement In vivo micro-CT FEM Rat molar Time lapse Superimposition
2010/3/5
Objective: To investigate the precise longitudinal change in the periodontal ligament (PDL) space width and three-dimensional tooth movement with continuous-force magnitudes in living rats.
Materia...
Analysis of Orthodontically Induced Root Resorption Using Micro-Computed Tomography (Micro-CT)
Tooth root resorption Orthodontic treatment Micro-CT Resorption lacuna Demineralization
2010/3/5
Objective: To establish a protocol for assessing orthodontically induced tooth root resorption (OITRR) in human premolars using micro-computed tomography.
Materials and Methods: Ten extracted maxil...
Root resorption of maxillary primary incisors in relation to position of successive permanent incisors by Micro-CT
Bony crypt Dry skulls of Indian children Maxillary primary incisors Micro-CT
2008/11/12
The aim of this study is to elucidate the root resorption of primary incisors in relation to the development of permanent incisors. We observed the maxillas of the dry skulls of Indian children, using...
Three dimensional observation of the occlusal grooves in the maxillary first and second deciduous molars with micro-CT
Maxillary deciduous molar Micro-CT Occlusal grooves
2008/11/11
The purpose of this study was clarify the morphological condition of occlusal grooves in the maxillary first and second deciduous molars with micro-CT. We took photographs of the maxillary deciduous m...
中科院重大项目Micro-CT落户深圳先进院
Micro-CT项目 功能形态
2008/8/11