There were a lot of key points gained from weld figure,and parameterize recurrence were achieved by B-spline curves to connect these points.
在所获取的电子束焊缝截面上取一系列控制点,利用B样条曲线实现焊缝形状的参数化再现,分析了控制点参数与焊缝形状特征参数的关系,建立了焊接形状分类准则,获得了特征尺寸临界值,并将电子束焊缝分为漏斗型、钟罩型、楔型和钉型四类。
The quantitative structure activity relationship(QSAR) of 32 polychlorinated dibenzo-p-furans toxicity is set up with some quantum-chemical parameters calculated by HyperChem7.
0计算得到的量化参数和自行设计的结构编码参数结合构成变量集,对氯代二苯并呋喃(PCDFs)进行定量构效关系研究。
The present article reviewed application and development of quantum chemical descriptors in predicting TLSER of compounds, the partition cofficients, and CoMFSA in detail.
评述了ＱＳＡＲ／ＱＳＰＲ研究中应用的４４种量化参数及其意义。
A total of 16 quantum-chemical descriptors were analyzed with PCA approach.
运用混合密度泛函理论DFT-B3LYP,以6-31G*为基组计算35个硝基苯及其同系物电子结构的量化参数,采用主成分分析法对16个量化参数进行预处理,并结合人工神经网络对硝基苯及其同系物的QSAR进行了研究。
QSAR Study on Hallucinogens with Quantum Chemical Descriptors
量化参数用于迷幻剂的QSAR研究
QSAR study on hallucinogenic activity of tryptamines using quantum chemical descriptors
量化参数用于色胺类迷幻剂的QSAR研究
Study on Structures and Properties of Fatty Alcohols with Quantum-chemical Descriptors and Topological Index
基于量化参数和拓扑指数的脂肪醇沸点QSPR研究
Intelligent Optimization of Multi-parameters in CNC Milling
数控铣削加工参数的多参量智能优化
LVQ Based Dimension-Reduced LSP Vector Quantization
LSP参数降维格型矢量量化应用研究
Parametrized Cyclic Representation of the Quantum Super algebra OSPq(1, 2);
量子超代数OSP_q(1,2)的参数化循环表示
Quantizations of Cartan-type Lie Algebras and Restricted Two-Parameter Quantum Groups of Type B;
Cartan型李代数的量子化和限制B型双参数量子群
Application of Parametric and Variational Design On Truck Body
参数化及变量化技术在数字汽车设计中的应用
On the Parameterization of the Transient Eddy Heat Flux in Atmosphere
关于大气涡动热通量参数化问题研究
The Dry-reed Relay Parameters Measuring System
舌簧继电器性能参数智能化测量系统
Study on the Parameter Optimization in Support Vector Machine;
关于支持向量机中的参数优化的研究
Research on Parameterized Three Dimensional Reconstruction Based-on Photogrammetry;
基于摄影测量点集的参数化三维重建
Solve Multiple Parameters Function Optimization Problem with Genetic Algorithm;
用遗传算法求解多参量函数优化问题
Research on Network Well-Earth Electrical Method Multi-Parameters Detection System
网络化井—地电法多参数测量系统研究
Ionosphere fitting method and path parameters analysis
电离层拟合方法及路径参数量化分析
Parameter Optimization of Support Vector Machine Based on Ant Colony Optimization Algorithm
基于蚁群算法的支持向量机参数优化
Soft measurement of operating parameters of conventional catalyst regeneration in FCCU
催裂化装置常规再生操作参数软测量
Optimization of filter parameters based on quantum genetic algorithm
基于量子遗传算法的滤波器参数优化