According to the Marr's visual theory, a novel face image presentation model, dual attribute graph, is put forward in the thesis. Each node of the graph has two attributes, local principal component coefficient and Gabor coefficient. So the presentation of face image can be converted from gray level to more high level.
根据Marr的视觉表示理论，本文提出了新的人脸图象表示形式---双属性图表示，属性图中每个节点有两个属性特征，局部主成分系数特征以及Gabor系数特征；从而将人脸图象的灰度级表示，转化为更高一级表示。
Electrophysiologic Presentation of a Mahaim Fiber in Patient With Dual Accessory Pathways (Analysis of One Case)
双房室旁道合并Mahaim纤维（附一例分析）
In experiment ⅱ, we employed a mixed design, 2 (learning materials difficulty: easy vs. complex)× 2 (presentation mode: single channel vs. dual channel), and presentation mode is between-subject design, the learning materials difficulty is within-subject design.
实验二采用2（学习材料难度：容易vs复杂）×2（呈现方式：单通道vs双通道）的混合设计，呈现方式为被试间设计，材料难易为被试内设计。
Dickens, the author of the book, exhibits superb skills in narratology and stylistics, especially the use of dual narrative point of view and different modes of speech presentation.
《远大前程》采用的双重叙事视角与多种不同的人物话语形式有助于实现现实主义，使小说更真实。
Taking the aero-engine as the studying object and using three-dimensional visualization and digital technology, this thesis is to validate the instruction and control of assembly process of aero-engine, which ensures assembly quality. The main research works are as follows:1. Aiming at the problem that assembly workmen operate according paperbacked rules and dual-dimension and it is non-intuitionist, this thesis studies the three-dimensional visualization technology of assembly process, and presented the implement scheme of assembly visualization based on three-dimensional Visualization components of HOOPS. The studied technology related include the acquirement of model, how to create the assembly order and path, the presentation of three-dimensional assembly process and how to control the animation play of assembly process step by step. By building the visualization model of assembly process and show it in the animation format, the workmen are instructed in assembly operation and the man-made impact on assembly quality will be reduced.2. Aiming at the fact that in the assembly process of aero-engine the method of quality management and control is laggard, the process of malfunction check is studied, and the key points of process of malfunction check are strictly controlled. In addition, the army-check process is integrated into the process of malfunction check, which ensures the part would satisfy the army requirement.3. The connotation of digital army-check and the classification of army-check are studied.
本文以航空发动机为研究对象，以三维可视化技术、数字化技术为手段，通过发动机装配过程指导和流程控制，从而实现装配质量监控，本论文主要研究内容如下：1 针对目前装配工人按照纸质的装配工艺规程和二维装配示意图进行装配不直观的缺点，研究装配工艺过程三维可视化技术，提出基于三维可视化组件HOOPS实现装配可视化的实现方案，研究模型获取，装配顺序和路径生成，三维装配动画的表示和动画播放的工步级控制等技术，通过建立装配工艺过程可视化模型，以动画形式来演示涡扇发动机的装配过程，指导工人的装配操作，减少人为因素对装配质量的影响； 2 针对发动机装配过程中质量管理和控制手段落后的实际情况，以故障检验为突破口，研究了故障检验的流程，对故检中需要控制的关键节点严格控制，同时将军检工作纳入到故检流程，确保零件质量达到军方装备要求； 3 研究了数字化军检的内涵，军检工作的分类，以军代表在故障检验中的角色和作用为例，开发了军检工作中的故检处理和确认功能。
Rule Presentation and Reasoning Method in Hydraulic Turboset Fault Diagnosis Based on Dual Factors Method
基于双参数方法的水轮发电机组故障诊断规则表示和推理问题研究