Continuous quality assessment of digitally-coded television pictures

1998 ◽  
Vol 145 (2) ◽  
pp. 116 ◽  
Author(s):  
R.P. Aldridge ◽  
D.S. Hands ◽  
D.E. Pearson ◽  
N.K. Lodge
Keyword(s):  
Quality Assessment ◽  
Continuous Quality

scholarly journals Continuous quality assessment with inCode

2017 ◽  
Vol 134 ◽  
pp. 19-36 ◽  
Author(s):  
George Ganea ◽  
Ioana Verebi ◽  
Radu Marinescu
Keyword(s):  
Quality Assessment ◽  
Continuous Quality

Online Weld Quality Benchmarking and Assurance during the Mass-Production Resistance Spot Welding Process

2012 ◽  
Vol 443-444 ◽  
pp. 872-880 ◽  
Author(s):  
Liang Gong ◽  
Cheng Liang Liu ◽  
Yan Ming Li ◽  
Bing Chu Li
Keyword(s):  
Quality Assessment ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Welding Process ◽  
Bayesian Belief Networks ◽  
Displacement Curve ◽  
Weld Quality ◽  
Probabilistic Forecasting ◽  
Resistance Spot ◽  
Continuous Quality

Nowadays online quality estimation for the resistance spot welding (RSW) has benefited a lot from monitoring the electrode displacement caused by nugget thermal expansion. Based on these emerging monitoring techniques a new approach is proposed to classify the weld quality and assure the quality for mass-produced weld group, which enables the continuous quality improvement concept during the welding process. A causal models are built with the offline trained Bayesian Belief Networks (BBN). It is a weld quality assessment net reveals the dependency of the weld quality on the features displayed by the displacement curve, which can be used for overdesigning the safety welds or as the probabilistic forecasting model for online weld quality assessment. The experimental results show that the proposed approach is valid and feasible to predict the weld quality and assure the overall quality for weld group in real applications.

SCAI core curriculum for adult and pediatric interventional fellowship training in continuous quality assessment and improvement

2015 ◽  
Vol 86 (3) ◽  
pp. 422-431 ◽  
Author(s):  
Henry S. Jennings ◽  
Sunil V. Rao ◽  
Dmitriy N. Feldman ◽  
Daniel M. Kolansky ◽  
Michael A. Kutcher ◽  
...  
Keyword(s):  
Quality Assessment ◽  
Core Curriculum ◽  
Fellowship Training ◽  
Continuous Quality ◽  
Quality Assessment And Improvement

Analysis and evaluation of the external quality assessment results of quality indicators in laboratory medicine all over China from 2015 to 2018

2019 ◽  
Vol 57 (6) ◽  
pp. 812-821 ◽  
Author(s):  
Min Duan ◽  
Fengfeng Kang ◽  
Haijian Zhao ◽  
Wei Wang ◽  
Yuxuan Du ◽  
...  
Keyword(s):  
Quality Assessment ◽  
Quality Indicators ◽  
External Quality Assessment ◽  
External Quality ◽  
Factors Affecting ◽  
Laboratory Errors ◽  
Continuous Quality ◽  
Clinical Laboratories ◽  
Information Construction ◽  
Quality Specifications

Abstract Background This study aimed to comprehensively evaluate laboratory quality in China and explore factors affecting laboratory errors through analyzing the external quality assessment (EQA) results of quality indicators (QIs). Methods According to model 3 (interpretive) of the proficiency testing scheme, the National Center for Clinical Laboratories of China (CNCCL) developed a questionnaire for 15 QIs. Clinical laboratories from different provinces of China participated in the EQA program of QIs annually and submitted data via an online reporting system named Clinet-EQA. The results of QIs were expressed in percentage and sigma value or minute. Three levels of quality specifications (QSs) were defined based on percentile values. Furthermore, the QIs were analyzed by disciplines, hospital scales and information construction levels of participant laboratories. Results A total of 3450 laboratories nationwide continuously attended the EQA program and submitted complete data from 2015 to 2018. The performance of most QIs has improved year by year. QIs in post-analytical gained the best performance with sigma values that varied from 5.3σ to 6.0σ. The comparison of results among different disciplines showed significant differences for five QIs. More than half of QIs had statistical differences among different hospital scales measured by hospital grades and number of hospital beds. The performance of nine QIs were influenced by information construction levels of participant laboratories. Conclusions The overall laboratory quality in China has improved since the initiation of EQA program for QIs, but the performance of some QIs was still unsatisfactory. Therefore, laboratories should make efforts for continuous quality improvement based on information provided by QSs.

scholarly journals Improving quality management of newborn screening in southwest China

2021 ◽  
Vol 49 (4) ◽  
pp. 030006052110029
Author(s):  
Chao-wen Yu ◽  
Xiao-yan He ◽  
Ke-xing Wan ◽  
Zhao-jian Yuan ◽  
Hao Liu ◽  
...  
Keyword(s):  
Quality Improvement ◽  
Quality Management ◽  
Newborn Screening ◽  
Quality Assessment ◽  
Continuous Quality Improvement ◽  
Southwest China ◽  
Internal Quality ◽  
Screening Process ◽  
Continuous Quality

Objective Newborn screening (NBS) programs benefit tens of millions of infants worldwide each year. However, the extremely large screening populations and number of laboratories involved pose great challenges to maintaining high screening quality. To achieve continuous quality improvement, we established a comprehensive quality management system (CQMS) in southwest China. Methods External quality assessment (EQA) and internal quality control were carried out for basic quality management. We used 16 quality indicators (QIs) to monitor the entire screening process, with external supervision from the China National Accreditation Service for Conformity Assessment. All retrospective data for quality assessment were collected consecutively from laboratory management and patient follow-up systems. Results From 2015 to 2019, satisfactory EQA performance was achieved, with an average score greater than 97 for each screening item. QI monitoring showed that NBS quality improved continuously. The rate of health education provision increased from 90.9% to 100% and the recall rate after a positive primary screening increased from 85.4% to 99.2%. The unsatisfactory specimen rate and rate of newborns lost to follow-up decreased to 0.38% and 0.08%, respectively. Conclusions Implementing a CQMS and monitoring the whole screening process using QIs may yield continuous quality improvement of NBS.

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