Determination of optimal system parameters to measure bending property of fabric based on the CHES-FY system

2014 ◽  
Vol 15 (4) ◽  
pp. 874-881 ◽  
Author(s):  
Cao Sun ◽  
Ruiqiang Gao ◽  
Linge He ◽  
Zhaoqun Du
Keyword(s):  
Optimal System ◽  
System Parameters ◽  
Bending Property

Determination of optimal system parameters to characterize the wrinkle recovery of fabrics by an integrated shape retention evaluation system

2019 ◽  
Vol 90 (1) ◽  
pp. 91-100 ◽  
Author(s):  
Yuzheng Lu ◽  
Xiaorui Hu ◽  
Fengxin Sun ◽  
Fujian Peng ◽  
Weidong Gao
Keyword(s):  
Evaluation System ◽  
Elastic Recovery ◽  
Orthogonal Experiment ◽  
Optimal System ◽  
System Parameters ◽  
Alternative Approach ◽  
Shape Retention ◽  
Recovery Angle ◽  
Visual Testing

Measurement methods based on the visual testing principle have been widely used for evaluating the wrinkle recovery property of fabrics; however, the cumbersome testing process and poor adaptability for various fabrics are the main shortcomings of these methods. Here, a facile mechanical testing method named the integrated shape retention evaluation system (ISRES) was developed, providing an alternative approach to assess the wrinkle recovery, as well as the compression recovery and elastic recovery of fabrics. The optimal system parameters of the ISRES in measuring the wrinkle recovery angle were determined using an orthogonal experiment design based on correlation analysis between the curve parameters from the force–displacement curves of the ISRES and the wrinkle recovery angles tested by a standard Shirley crease recovery tester. Moreover, the sensitivity of the ISRES for the differences of the wrinkle recovery of fabrics was analyzed. The results showed that the selected optimal system parameters were a good combination, and the ISRES with the optimal system parameters provided a feasible method to differentiate the wrinkle recovery of fabrics.

scholarly journals A tale of two periods: determination of the orbital ephemeris of the super-Eddington pulsar NGC 7793 P13

2018 ◽  
Vol 616 ◽  
pp. A186 ◽  
Author(s):  
F. Fürst ◽  
D. J. Walton ◽  
M. Heida ◽  
F. A. Harrison ◽  
D. Barret ◽  
...  
Keyword(s):  
Accretion Disk ◽  
Orbital Period ◽  
Timing Analysis ◽  
X Ray ◽  
System Parameters ◽  
Orbital Resonance ◽  
Photometric Period ◽  
Orbital Periods ◽  
Analyze Data

We present a timing analysis of multiple XMM-Newton and NuSTAR observations of the ultra-luminous pulsar NGC 7793 P13 spread over its 65 d variability period. We use the measured pulse periods to determine the orbital ephemeris, confirm a long orbital period with Porb = 63.9+0.5−0.6 d, and find an eccentricity of e ≤ 0.15. The orbital signature is imprinted on top of a secular spin-up, which seems to get faster as the source becomes brighter. We also analyze data from dense monitoring of the source with Swift and find an optical photometric period of 63.9 ± 0.5 d and an X-ray flux period of 66.8 ± 0.4 d. The optical period is consistent with the orbital period, while the X-ray flux period is significantly longer. We discuss possible reasons for this discrepancy, which could be due to a super-orbital period caused by a precessing accretion disk or an orbital resonance. We put the orbital period of P13 into context with the orbital periods implied for two other ultra-luminous pulsars, M82 X-2 and NGC 5907 ULX, and discuss possible implications for the system parameters.

Experimental study on an effective method for the friction property of fabrics by the comprehensive handle evaluation system for fabrics and yarns system

2017 ◽  
Vol 88 (8) ◽  
pp. 882-891 ◽  
Author(s):  
Fengxin Sun ◽  
Ruiqiang Gao ◽  
Xiaorui Hu ◽  
Zhaoqun Du ◽  
Weidong Yu
Keyword(s):  
Friction Coefficient ◽  
Evaluation System ◽  
Orthogonal Experiment ◽  
Optimal System ◽  
Cluster Method ◽  
Displacement Curve ◽  
Friction Property ◽  
System Parameters ◽  
Fabric Surface ◽  
Method Analysis

The main topic investigated in this paper is the effective measurement of the fabric friction property by the comprehensive handle evaluation system for fabrics and yarns (CHES-FY). The optimal system parameters of the CHES-FY were determined using an orthogonal experiment design based on the correlations between four curve parameters from the pulling-out force – the displacement curve of the CHES-FY and the friction coefficient tested by the Kawabata evaluation system for fabric surface tester. The repeatability and stability of the CHES-FY under settings of optimal system parameters were also analyzed. Moreover, the four curve parameters were used to cluster the smoothness/roughness handle of fabrics objectively by the k-means cluster method, and the clustering results of the k-means cluster method were compared with those of the subjective cluster method. Analysis of the results showed that the selected optimal system parameters were a good combination, and the CHES-FY with the optimal system parameters provided an effective and reliable evaluation to the friction coefficient and smoothness/roughness handle of fabrics.

Fuzzy Quality Measures for Use in a Hierarchical Fuzzy Controller

2000 ◽  
Author(s):  
Alan Carlson ◽  
Dean B. Edwards ◽  
Michael J. Anderson
Keyword(s):  
Fuzzy Controller ◽  
Structure Optimization ◽  
Quality Measures ◽  
Quality Measure ◽  
Approximate Determination ◽  
Rule Base ◽  
System Parameters ◽  
The Individual ◽  
Monolithic Structure

Abstract This paper presents a control strategy that uses a hierarchical structure to arbitrate between recommendations from lower level modules. The lower level modules represent lower level tasks or behaviors. Each lower level module provides its own control recommendation based on its limited perception of the environment. We introduce the concept of a fuzzy quality measure that may be used by the hierarchical controller to determine how best to fuse the individual recommendations. The Quality Measure provides an approximate determination of each control recommendations potential value. The hierarchical partitioning reduces the cardinality of the rule base and decreases the number of system parameters, as compared to a monolithic structure. Optimization of the reduced parameter set is simpler and requires less time.

Accurate determination of the total alkalinity and the CO2 system parameters in high-altitude lakes from the Western Pyrenees (France – Spain)

2020 ◽  
Vol 152 ◽  
pp. 104345
Author(s):  
Leire Kortazar ◽  
Bastien Duval ◽  
Olaia Liñero ◽  
Olaia Olamendi ◽  
Ainhoa Angulo ◽  
...  
Keyword(s):  
High Altitude ◽  
Accurate Determination ◽  
Total Alkalinity ◽  
System Parameters ◽  
High Altitude Lakes ◽  
Western Pyrenees
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