Modelling of Piezoceramic Output Current Based on Multivariate Linear Fitting Method

2018 ◽  
Vol 537 (1) ◽  
pp. 79-89
Author(s):  
Dezhi Li ◽  
Bin Zhang ◽  
Benjamin Ducharne ◽  
Linsen Zhu
Keyword(s):  
Output Current ◽  
Linear Fitting ◽  
Fitting Method

scholarly journals Kinetic, isotherm and thermodynamic studies with linear and non-linear fitting for cadmium(II) removal by black carbon of pine cone

2017 ◽  
Vol 76 (8) ◽  
pp. 2242-2253 ◽  
Author(s):  
Z. Yavari ◽  
M. Noroozifar
Keyword(s):  
Aqueous Solutions ◽  
Black Carbon ◽  
Adsorption Process ◽  
Order Kinetic ◽  
Cadmium Removal ◽  
Thermodynamic Studies ◽  
Linear Fitting ◽  
Pine Cone ◽  
Fitting Method ◽  
Non Linear

In this study, black carbon from pine cone (BCPC) and acidic-modified BCPC (MBCPC) powder as a popular agricultural waste in the southeast of Iran were used for cadmium removal from aqueous solutions. The effect of various factors, such as surface chemistry and dosage of adsorbent, contact time, size of particles, initial concentration of cadmium, temperature, and pH of aqueous solutions, was investigated. The results show cadmium removal with usage of the mentioned adsorbents increased after acidic modification. It was noteworthy in this work that the removal percentage of pollutant was above 90% for suggested biosorbents. The obtained experimental data for optimum conditions were selected to model the adsorption behavior of the materials with usage of six isotherm equations via non-linear fitting method and the residual root mean square error estimation for each model. The adsorption of cadmium preferably fitted Khan and Langmuir–Freundlich isotherms for BCPC and MBCPC adsorbents, respectively. The kinetic studies via linear fitting method proved the second-order kinetic was the applicable model for the adsorption process. Thermodynamic studies show the adsorption process of cadmium onto BCPC and MBCPC was spontaneous and endothermic.

Chromatic Confocal Displacement Measurment Based on Correlation Algorithm

2013 ◽  
Vol 446-447 ◽  
pp. 909-914
Author(s):  
Chun Hui Niu ◽  
Yong Lv
Keyword(s):  
Measurement System ◽  
Smoothing Spline ◽  
Peak Wavelength ◽  
Linear Fitting ◽  
Correlation Curve ◽  
Correlation Algorithm ◽  
Spline Fitting ◽  
Fitting Method ◽  
Spectrum Curve ◽  
Confocal Technique

Chromatic confocal technique application in displacement measurement is studied theoretically and experimentally. a set of refractive lenses are designed and a measurement system is established. Correlation fitting method is proposed to fit spectrum curve and find peak wavelength. Results with use of correlation fitting method are compared with Gaussian and smoothing spline fitting methods. It indicate that correlation fitting method have higher extracting accuracy of peak wavelength and smaller RMSE of linear fitting due to narrower and smoother correlation curve.

The non-linear fitting method to analyze the measured M–S plots of bipolar passive films

2010 ◽  
Vol 55 (7) ◽  
pp. 2498-2504 ◽  
Author(s):  
Ruijing Jiang ◽  
Changfeng Chen ◽  
Shuqi Zheng
Keyword(s):  
Passive Films ◽  
Linear Fitting ◽  
Fitting Method ◽  
Non Linear

A General Steel Hardenability Calculation Method

2013 ◽  
Vol 816-817 ◽  
pp. 140-143
Author(s):  
Zhi Gang Yu ◽  
Li Na Wang ◽  
Jia Liu
Keyword(s):  
Experimental Data ◽  
Calculation Method ◽  
Prediction Accuracy ◽  
General Relationship ◽  
Alloying Elements ◽  
Calculation Methods ◽  
Linear Fitting ◽  
Fitting Method ◽  
Limited Applicability ◽  
The Relationship

This paper presents a general calculation method of steel hardenability. First use non-linear fitting method to establish a general relationship between hardenability coefficient and end-quench distance, and then use SVM method to establish the relationship between alloying elements and hardenability coefficients. It solves the limited applicability and poor precisions problems of the currently applied calculation methods for hardenability. It gives an enhancement scheme to make sure the accuracy of the model when the data are not complete enough. Experimental data show that using this method can effectively improve the hardenability prediction accuracy and can be widely used.

CBED Tools for semi-automatic measurement of crystal thicknesses

2017 ◽  
Vol 50 (1) ◽  
pp. 313-319 ◽  
Author(s):  
Shi Honglong ◽  
Luo Minting ◽  
Wang Wenzhong
Keyword(s):  
Automatic Measurement ◽  
Convergent Beam Electron Diffraction ◽  
Zero Order ◽  
Crystal Thickness ◽  
Beam Electron ◽  
Linear Fitting ◽  
Fitting Method ◽  
Kikuchi Lines ◽  
Convergent Beam ◽  
Thin Crystal

Convergent-beam electron diffraction (CBED) is one of the most popular techniques to measure crystal thickness. The traditional measurement involves linear fitting of several fringes across the CBED disc, but for a thin crystal with fewer than three fringes the usefulness of this method will be limited. CBED Tools, a free plugin for the DigitalMicrograph software, provides a fast (∼1–2 min) and accurate algorithm to measure the crystal thickness on the basis of the linear fitting method, but it is also capable of determining the crystal thickness when it is very thin and only one fringe or part of the first fringe is recorded. CBED Tools can also be utilized to handle the severely distorted CBED pattern obtained when the zero-order Laue zone Kikuchi lines overlap with the fringes.

Experimental Analysis of the Wind Farm and Numerical Site Calibration

2007 ◽  
Author(s):  
T. Kamio ◽  
M. Iida ◽  
C. Arakawa
Keyword(s):  
Weibull Distribution ◽  
Complex Terrain ◽  
Wind Farm ◽  
Wind Data ◽  
Estimation Methods ◽  
Linear Fitting ◽  
Fitting Method ◽  
Non Linear ◽  
Wind Characteristics ◽  
The Difference

This paper mentions the difference of estimation methods for the Weibull distribution using the wind data that were measured at more than 300 locations to clarify the wind characteristics in a complex terrain. As the result, the Weibull distribution function is approximated the experimental wind data by the non-linear fitting method rather than the linear fitting method. Then the numerical site calibration with MASCOT which is the non-linear numerical wind prediction model and WaSP are run out on a complex terrain in Japan.

Study on the Characteristics of the Flow Resistance of the Mixed Plate Heat Exchanger

2013 ◽  
Vol 477-478 ◽  
pp. 213-216
Author(s):  
Zheng Ming Tong ◽  
Fei Xie ◽  
Gui Hua Qin ◽  
Xiao Gang Tao
Keyword(s):  
Heat Exchanger ◽  
Mixed Mode ◽  
Flow Resistance ◽  
Engineering Calculation ◽  
Plate Heat Exchanger ◽  
Plate Heat ◽  
Linear Fitting ◽  
Fitting Method ◽  
Test Platform

BR0.3 type plate heat exchanger was used for the experiment. Through the test platform of plate heat exchanger, a large number of experiments have been done in different mixed mode but the same passageway. By the linear fitting method and the analysis of the data, the formula of flow resistance which fit at any mixed mode is obtained, it solves the problem of calculating flow resistance and has a great help for engineering calculation.

High-accuracy differential resonant pressure sensor with linear fitting method

2021 ◽  
Vol 31 (4) ◽  
pp. 045006
Author(s):  
Xiangguang Han ◽  
Libo Zhao ◽  
Jiuhong Wang ◽  
Li Wang ◽  
Mimi Huang ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
High Accuracy ◽  
Linear Fitting ◽  
Fitting Method
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