Differential contact-type air plug gauge non-automatic extraction turbine 差动接触式气动塞规非自动调节抽气式汽轮机
Stress Analysis of Differential Straight Wire Appliance and Sliding Straight Wire Appliance Applied in Extraction Cases; The Effect of Slot Direction of Lingual Appliance on Mechanical Properties 差动直丝弓与滑动直丝弓矫治器应用于正畸拔牙病例的力学分析舌侧托槽不同槽沟方向对矫治器力学性能影响的对比研究
Investigation on the Peak-seperation for Determining Oxide Inclusions in Steel by Differential Thermal Extraction 钢中氧化物夹杂差热抽取峰形分离研究
To avoid the disadvantage of the traditional methods, the mass transfer coefficient is calculated based on the results of differential extraction. The kinetic model of SCFE bases on differential extraction is established according to the principle of mass conservation. 针对已有超临界流体萃取模型中传质系数关联计算方法的不足,本文采用微分床萃取实验结果来计算传质系数,并根据质量衡算原理,建立了基于微分床萃取的超临界流体萃取动力学模型。
The differential centrifugation technique and sequential chemical extraction method were used to study the subcellular distribution and the chemical forms of Cu in the roots, leaves and stems of Commelina communis. 运用差速离心法和化学试剂逐步提取法分析了Cu在鸭跖草Commelinacommunis根、茎、叶的亚细胞分布及贮存形态。
The Establishment of the Differential Diagnosis for the Borderline Cases with Extraction or Non-extraction Orthodontic Treatment Using Fuzzy Set Theory 正畸拔牙和非拔牙矫治边缘病例模糊综合评判系统的建立
Second, we use differential geometry principle to study footprint range image segmentation, and have realized the segmentation and extraction of three-dimensional footprint pressure surface. 运用微分几何原理研究深度图像分割方法,实现了立体足迹重压面的分割与提取。
A mathematical model based on the hypothesis of fixed bed, plug-flow in integral run and mixed-flow in differential run is set up. Using this model we can calculate the results of integral extraction on the base of differential extraction which uses small materiel and occupies less time. 基于固定床、积分柱塞流与微分混合流的假设建立了理论计算模型,使用这个模型可以根据装料量少耗时短的微分萃取试验结果来较为准确地计算出相同条件下积分萃取的过程。
According to the principle of mass conservation, the kinetic model of SCFE is set up founded on differential extraction, and the mass transfer in SCFE is analyzed. 根据质量衡算原理,建立了基于微分床萃取的超临界流体萃取的动力学数学模型,从理论上分析了超临界流体萃取的传质过程。
Considering the correlation between the pixels in face image, the PCA method is performed both on the raw image and its horizontal differential image and vertical differential image for feature extraction. And then the stability of the face detection is improved. 考虑到图像像素间的相关性,人脸特征提取的同时,对原始图像和其水平方向及垂直方向的差分图像进行PCA分析,从而提高了人脸检测的稳定性。
The organic component and its content were got with DSC ( Differential Scanning Calorimetry) material burning test extraction test pyrolysis and GC/ MS, and the dielectric characteristic of insulator were also tested. 用DSC、材料燃烧、萃取、热裂解和色谱质谱分析法确定了有机部分的组成和含量,并对样品做了介电特性测试试验。
The Partial Differential Equations Processing Methods of Electronic Speckle Pattern Interferometry Fringes and Phase Extraction 电子散斑干涉条纹图的偏微分方程处理方法及相位提取
Differential pressure Security Control of the Last stage Blades of a Reheat Extraction Steam Turbine Intermediate pressure Cylinder 再热抽汽式汽轮机中压缸末级叶片压差保护控制
The BP artificial neural network is trained with the results of differential extraction, and after being trained it is used to predict the differential extraction under other conditions. 用已有的超临界流体微分床萃取实验数据来训练人工神经网络,并利用训练后的神经网络来预测不同萃取压力与萃取温度条件下的超临界流体微分床萃取过程。
Put forward Riemannian metric-based nearest center neighbor classifier ( RMNCC) on the basis of differential geometry, correlating the feature extraction based on PCA and ICA and classification in radar target recognition on the foundation of mathematics. 针对PCA、ICA特征提取方法,基于微分几何的数学理论,综合考虑了雷达目标距离像识别中的特征提取与分类识别,提出基于黎曼度量的最近中心邻分类器。
Signal backend using differential threshold and median filtering algorithm based on oversampling the bottom of the pulse wave in the system pretreatment, extraction of more accurate data, the signal usefulness of the system is greatly improved. 信号后端采用微分阈值和基于中值滤波的过采样算法在系统底层对脉搏波进行预处理,以提取更精确的数据,使系统的信号实用性大大提高。
So the phonocardiogram characteristic value extraction algorithm based on Shannon standardized average energy envelope extraction and differential method to realizing extraction of the amplitude and start point position was proposed. 因此本课题还设计了一种基于归一化平均Shannon能量包络提取与差分法实现心音特征值提取算法,主要实现了S1与S2的幅值与起始位置的提取。
But using differential technology to extract the edge of the method often noise are very sensitive to noise image edge extraction containing the effect will be discounted. 但利用微分技术提取边缘的方法往往对噪声很敏感,对含有噪声的图像提取边缘的效果会大打折扣。
Differential quantities such as normal, Gaussian curvatures and Mean curvatures can be used for a variety of tasks in computer graphics, such as segmentation, feature extraction, smoothing, simplification, reconstruction, rendering and surface analysis. 法向量、高斯曲率、平均曲率等微分量可以用来解决计算机图形学领域的各种基本任务,其中包括渲染、三维重建、平滑、分割、特征提取、分类等。
This paper researches the method of typhoon wind field retrieval based on the techniques of partial differential equation, machine learning and so on. The main work of this paper includes four aspects as follows: ( 1) Typhoon eye extraction by partial differential equations. 本文结合偏微分方程和机器学习等智能信息处理技术研究台风风场的反演方法,主要包括以下四个方面的研究工作:(1)基于偏微分方程的台风眼提取。
Proposed method is based on two previously developed approaches: the first one is the differential geometric approach to extract linear features; second one is road contour extraction based on Active Contour Models ( also known as Snake). 提出的方法主要基于以下两条途径:其一,微分几何方法提取线性结构的中心线;其二,基于主动轮廓模型(又被称为Snake)的道路边界提取。
The recognition rate of the BP neural network and least squares support vector machine model in which second-order differential treatment based on the extraction of characteristic values by partial least-squares analysis reached 100%. 其中依据二阶微分处理并且经过偏最小二乘分析提取特征值而建立的BP神经网络和最小二乘支持向量机识别模型效果最好,识别率都达到了100%。