A triple-frequency transducer for endoscopic imaging: Simulation design and experimental verification

2021 ◽  
Vol 321 ◽  
pp. 112589
Author(s):  
Zhangjian Li ◽  
Jie Xu ◽  
Xinle Zhu ◽  
Zhile Han ◽  
Jiabing Lv ◽  
...  
Keyword(s):  
Experimental Verification ◽  
Simulation Design ◽  
Endoscopic Imaging ◽  
Triple Frequency ◽  
Frequency Transducer ◽  
Imaging Simulation

A Triple-frequency transducer and its Multi-frequency Image Fusion Method

2019 ◽  
Author(s):  
Zhangjian Li ◽  
Weiwei Shao ◽  
Zhile Han ◽  
Pengbo Liu ◽  
Chen Yang ◽  
...  
Keyword(s):  
Image Fusion ◽  
Fusion Method ◽  
Triple Frequency ◽  
Frequency Transducer ◽  
Image Fusion Method

Forced Zero Cross-Loading Misspecifications in Measurement Component of Structural Equation Models

Methodology ◽  
2014 ◽  
Vol 10 (4) ◽  
pp. 138-152 ◽  
Author(s):  
Hsien-Yuan Hsu ◽  
Susan Troncoso Skidmore ◽  
Yan Li ◽  
Bruce Thompson
Keyword(s):  
Structural Equation ◽  
Structural Model ◽  
Structural Equation Models ◽  
Equation Model ◽  
Model Fit ◽  
Model Specification ◽  
Simulation Design ◽  
Measurement Models ◽  
Fit Statistics ◽  
Path Coefficients

The purpose of the present paper was to evaluate the effect of constraining near-zero parameter cross-loadings to zero in the measurement component of a structural equation model. A Monte Carlo 3 × 5 × 2 simulation design was conducted (i.e., sample sizes of 200, 600, and 1,000; parameter cross-loadings of 0.07, 0.10, 0.13, 0.16, and 0.19 misspecified to be zero; and parameter path coefficients in the structural model of either 0.50 or 0.70). Results indicated that factor pattern coefficients and factor covariances were overestimated in measurement models when near-zero parameter cross-loadings constrained to zero were higher than 0.13 in the population. Moreover, the path coefficients between factors were misestimated when the near-zero parameter cross-loadings constrained to zero were noteworthy. Our results add to the literature detailing the importance of testing individual model specification decisions, and not simply evaluating omnibus model fit statistics.

Simulation Design: Negotiation Learning Gains

2012 ◽  
Author(s):  
Noam Ebner ◽  
Daniel Druckman
Keyword(s):  
Learning Gains ◽  
Simulation Design

Magnetic Endoscopic Imaging for routine colonoscopy – do we need it?

2008 ◽  
Vol 21 (01) ◽  
Author(s):  
A Dechêne ◽  
P Hilgard ◽  
K Radecke ◽  
J Schlaak ◽  
G Gerken ◽  
...  
Keyword(s):  
Endoscopic Imaging
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