搜索结果: 1-15 共查到“工学 L Curve”相关记录34条 . 查询时间(0.812 秒)
SOLVING THE RATIONAL POLYNOMIAL COEFFICIENTS BASED ON L CURVE
RPC model Tikhonov Regularization method L Curve orthorectification rigorous sensor model ill conditioned equation
2018/5/17
The rational polynomial coefficients (RPC) model is a generalized sensor model, which can achieve high approximation accuracy. And it is widely used in the field of photogrammetry and remote sensing. ...
TLS Deformation Measurement Using LS3D Surface and Curve Matching
Terrestrial Laser Scanner Point Cloud Matching Deformation measurement
2015/12/16
During last few years the use of Terrestrial Laser Scanner has increased notably in different application fields, like architecture,
geology and geodesy. The paper focuses in the use of TLS data for ...
RECOVERING PLOT-SPECIFIC DIAMETER DISTRIBUTION AND HEIGHTDIAMETER CURVE USING ALS BASED STAND CHARACTERISTICS
Airborne laser scanning forest inventory Weibull Korf Scots pine
2015/11/10
Density, diameter distribution and height-diameter (H-D) pattern of a forest stand are of primary importance in deriving various stand characteristics, but measuring diameters and heights of a tree st...
Straight-line backbone curve
Nonlinear vibrations Perturbation methods Period–amplitude relation
2015/8/27
In this work we propose a class of problems in nonlinear vibrations related to avoiding undesirable hysteresis and jump phenomena and offer sample conservative systems for which the backbone curve is ...
Strategies in skill acquisition: reconciling continuous models of the learning curve with abrupt strategy shifts
skill acquisition learning mathematical models learning curves
2015/7/21
How does task completion time change with practice and what processes underlie this change? Despite over 100 years of scientific research (e.g., Bryan & Harter, 1899) no wholly satisfactory answer has...
Estimation of the soil water retention curve (SWRC) using pedotransfer functions
continuous pedotransfer function soil water retention curve fitting parametric method neural network
2015/1/30
Soil hydraulic characteristics, especially the soil water retention curve and hydraulic conductivity, are essential for many agricultural, environmental, and engineering applications. Their measuremen...
POLYNOMIAL CURVE FITTING INDICES FOR DYNAMIC EVENT DETECTION IN WIDE-AREA MEASUREMENT SYSTEMS
Power system measurements Power system monitoring Fault detection Response-based control Decision trees
2015/1/20
In a wide-area power system, detecting dynamic events is critical to maintaining system stability. Large events, such as the loss of a generator or fault on a transmission line, can compromise the sta...
Exact Finite Element Formulation of Frenet Formula of Curve in Geospatial Database
Data processing curve plotting curve equation navigation
2014/7/23
Directly using the difference form of Frenet formula will cause the three basic vectors losing their orthogonal features rapidly. As the analytic form is exact for infinite short length region, for fi...
3D CATENARY CURVE FITTING FOR GEOMETRIC CALIBRATION
3D catenary model least square fitting parameter correlation hanging power cables
2014/6/5
In modern road surveys, hanging power cables are among the most commonly-found geometric features. These cables are catenary curves that are conventionally modelled with three parameters in 2D Cartesi...
RECONSTRUCTING THREE-DIMENSIONAL SPECIFIC CURVE BUILDING MODELS FROM A SINGLE PERSPECTIVE VIEW IMAGE
Geometry Modelling, Building Reconstruction Close Range Photogrammetry.
2014/4/29
This paper presents a systematic approach to reconstruct 3D models of complex buildings with specific curve structures from single
perspective view images. The proposed method begins with the automa...
Algorithm for Smooth S-curve Feedrate Profiling Generation
S-curve acceleration/deceleration feedrate control
2011/8/4
The works for feedrate profile generation, such as linear and S-curve profiles, have been proposed all over the world, and these algorithms can greatly improve the smoothness of motion. However, most ...
Estimation of the baking quality of wheat flours based on rheological parameters of the mixolab curve
mixolab alveograph rheofermentometer dough baking quality
2014/2/26
The Mixolab device in view of the characterisation of the thermo-mechanical behaviour of ten different flours, and establishing the correlations between the rheological parameters of wheat flour suppl...
Regional plantar foot pressure distributions on high-heeled shoes-shank curve effects
High-heeled shoes Shank curve Plantar arch height Plantar pressure Foot biomechanics
2012/2/28
Forefoot pain is common in high-heeled shoe wearers due to the high pressure caused by the center of body mass moving forward and the increased arch height with heel elevation. Sufficient arch support...
基于周期性延伸的三次B样条闭曲线插值（Interpolation of Cubic B-spline Closed Curve Based on Periodic Extension）
闭曲线 三次B样条插值 带状阵 周期性延伸
2009/12/28
针对闭曲线具有可周期性延伸的特点，提出了一种基于求解双列带阵线性方程组的三次B样条完全闭曲线插算法。通过节点向量和控制点在曲线闭合点两端的周期性延伸，使插值曲线在闭合点实现了理论上的完全封闭。针对曲线插值线性方程组中系数矩阵具有不完全带阵的特点，提出了一种双列带阵线性方程组求解算法。应用实例表明，算法性能稳定、效率高、可插值任意形状的复杂闭曲线，适于处理大数据量闭曲线插值运算。
基于压痕加载曲线的谷物籽粒硬度性能测定技术（Testing of Grain Hardness Based on Indentation Loading Curve）
谷物 籽粒 硬度 压入法 试验
2010/5/5
使用500N微机控制材料试验机，利用压痕加载曲线，进行了用针尖压入法测定谷物籽粒硬度的试验研究，测得豌豆、蚕豆、大米、绿豆、小麦、扁豆以及玉米在不同组成部位、不同含水率时的硬度值在2～75MPa范围内。研究表明，试验加载速度在0.25～2.00mm/s范围内、针尖压入深度在0.25～1.50mm范围内时对试验结果无明显影响，而针尖锥度与籽粒硬度存在定量关系。 By using the 500N m...