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Digital-Twin-Enhanced Quality Prediction for the Composite Materials Article
Yucheng Wang, Fei Tao, Ying Zuo, Meng Zhang, Qinglin Qi
Engineering 2023, Volume 22, Issue 3, Pages 23-33 doi: 10.1016/j.eng.2022.08.019
Composite materials are widely used in many fields due to their excellent properties. Quality defects in composite materials can lead to lower quality components, creating potential risk of accidents. Experimental and simulation methods are commonly used to predict the quality of composite materials. However, it is difficult to predict the quality of composite materials accurately due to the uncertain curing environment and incomplete feature space. To address this problem, a digital twin (DT) visual model of a composite material is first constructed. Then, a static autoclave DT virtual model is coupled with a variable composite material DT virtual model to construct a model of the curing process. Features are added to the proposed model by generating simulated data to enhance the quality prediction. An extreme learning machine (ELM) for quality prediction is trained with the generated data. Finally, the effectiveness of the proposed method is verified through result analysis.
Keywords： Digital twin Quality prediction Composites Coupling models
Quality-related locally weighted soft sensing for non-stationary processes by a supervised Bayesian network with latent variables Research Articles
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 9, Pages 1234-1246 doi: 10.1631/FITEE.2000426
It is necessary to construct an adaptive model to cope with process non-stationaries. In this study, a novel quality-related locally weighted soft sensing method is designed for non-stationary processes based on a Bayesian network with . Specifically, a is proposed where quality-oriented are extracted and further applied to a double-layer similarity measurement algorithm. The proposed soft sensing method tries to find a general approach for non-stationary processes via quality-related information where the concepts of local similarities and window confidence are explained in detail. The performance of the developed method is demonstrated by application to a numerical example and a debutanizer column. It is shown that the proposed method outperforms competitive methods in terms of the accuracy of predicting key quality variables.
Keywords： 软测量；有监督贝叶斯网络；隐变量；局部加权建模；质量预测
Adaptive compression method for underwater images based on perceived quality estimation Regular Papers
Ya-qiong CAI, Hai-xia ZOU, Fei YUAN
Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 5, Pages 716-730 doi: 10.1631/FITEE.1700737
Underwater image compression is an important and essential part of an underwater image transmission system. An assessment and prediction method of effectively compressed image quality can assist the system in adjusting its compression ratio during the image compression process, thereby improving the efficiency of the image transmission system. This study first estimates the perceived quality of underwater image compression based on embedded coding compression and compressive sensing, then builds a model based on the mapping between image activity measurement (IAM) and bits per pixel and structural similarity (BPP-SSIM) curves, next obtains model parameters by linear fitting, and finally predicts the perceived quality of the image compression method based on IAM, compression ratio, and compression strategy. Experimental results show that the model can effectively fit the quality curve of underwater image compression. According to the rules of parameters in this model, the perceived quality of underwater compressed images can be estimated within a small error range. The presented method can effectively estimate the perceived quality of underwater compressed images, balance the relationship between the compression ratio and compression quality, reduce the pressure on the data cache, and thus improve the efficiency of the underwater image communication system.
Keywords： Underwater image compression Set partitioning in hierarchical trees Compressive sensing Compression quality estimation
Learning-based parameter prediction for quality control in three-dimensional medical image compression Research Articles
Yuxuan Hou, Zhong Ren, Yubo Tao, Wei Chen,3140104190@zju.edu.cn,renzhong@cad.zju.edu.cn
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 9, Pages 1169-1178 doi: 10.1631/FITEE.2000234
Keywords： 医学图像压缩；高效视频编码（HEVC）；质量控制；基于学习方法
Strategy for Improving Product Quality of Manufacturing Industry in China
Zhang Hao, Zhang Gang, Jiang Jiadong, Zong Xijun
Strategic Study of CAE 2022, Volume 24, Issue 2, Pages 38-47 doi: 10.15302/J-SSCAE-2022.02.002
Currently, the product quality of China’s manufacturing industry is uneven and has a notable gap with that of developed countries. Improving the quality of manufactured products is vital for upgrading China’s manufacturing industry and promoting the core competitiveness of the industry. In this study, we first analyze the development characteristics regarding the quality of the manufacturing industry, and then examine the development trend and prominent problems regarding the product quality of China’s manufacturing industry. While summarizing international experiences, we propose several suggestions for product quality improvement. Specifically, China should (1) clarify the strategic positioning of product quality development and strengthen the coherence of national quality policies; (2) focus on the needs of future industrial development by implementing three action plans; (3) accelerate the innovation of quality management theories, technologies, and tools under the guidance of digital transformation; (4) integrate the industrial quality infrastructure to support the product quality improvement; (5) reconstruct the quality development environment to promote enterprises’ willingness in improving product quality; and (6) maximize the institutional advantages of the country to implement foundation projects for improving product quality.
Keywords： manufacturing，quality improvement，product quality，quality assurance，quality infrastructure
Strategy of Manufacturing Quality Power
The Research Group for Manufacturing Quality Power Strategy
Strategic Study of CAE 2015, Volume 17, Issue 7, Pages 24-28
The meaning to implement the Manufacturing Quality Power Strategy was systematically discussed in this research, and the present situation of manufacturing quality development in our country was analyzed. Based on the national conditions in China, the research has proposed the strategic goals, strategic tasks, countermeasures and policy recommendations by 2025 by analyzing the experiences of the major industrial countries.
Keywords： manufacturing power quality strategy
Liu Weili,Zheng Qiming and Zhang Han
Strategic Study of CAE 2015, Volume 17, Issue 7, Pages 133-132
Based on the Hallak Product Quality model, we construct an empirical product quality model adopting unit value, distance between countries, income per capita. This research measures Chinese, Indian and Brazilian manufacturing quality of HS6 products that export to the U.S., from 2003 to 2013. And we put forward policy recommendations to improve China’s product quality upgrading ability in the international market.
Keywords： manufacturing product quality quality upgrade
Quality Markers of Traditional Chinese Medicine: Concept, Progress, and Perspective Review
Yazhuo Li, Ying Xie, Yufei He, Wenbin Hou, Maoliang Liao, Changxiao Liu
Engineering 2019, Volume 5, Issue 5, Pages 888-894 doi: 10.1016/j.eng.2019.01.015
As the most important complementary medication against a variety of diseases, traditional Chinese medicines (TCMs) have been extensively applied over thousands of years. Current quality control of herbal medicines, however, is in great dispute. Unlike chemical drugs, which have clear and validated quality standards, the content of only one (or a few) compounds of many herbs and preparations is currently assessed as an indicator of quality, even though the assessed compound(s) is neither closely associated with the efficacy nor representative of the medicine as a whole. Based on the clinical use, compatibility of multiple component prescriptions, and manufacturing process of TCM, the new concept of a TCM quality marker that was proposed in previous work is discussed further here. In addition, practical technological approaches are described for the qualitative analysis and quantification of TCMs including herbs, processed products, and preparations, which lead to the discovery and identification of specific chemicals as quality markers and new quality control patterns. The progress that has been made in TCM quality control is also addressed. This work provides useful information for the quality control of herbal medicines in the future.
Keywords： Traditional Chinese medicine Quality marker Quality control
Quality Upgrading of the Manufacturing Industry in Supply-Side Structural Reformation
Zhang Gang
Strategic Study of CAE 2017, Volume 19, Issue 3, Pages 29-38 doi: 10.15302/J-SSCAE-2017.03.005
Quality in manufacturing reflects the core competitiveness of enterprises and industries and the national comprehensive strength. This paper focuses on the main direction of supply-side structural reform, analyzes the role of manufactural quality upgrading in processing impetus to industrial transformation, optimizing the employment structure, promoting coordinated economic development, and building the national brand. The author maintains that quality, which covers aspects of both hard power and soft power, should be strengthened like science and technology and education, granted with comprehensive status. Based on the concept of "Big Quality", six aspects of accelerating reform in manufactural quality upgrading are put forward: set goals of engaging quality with efficiency, create new methods for industrial structure analysis of quality dimensions, build new advantages of national quality infrastructure, implement major projects for quality upgrading, innovate the law and policy systems of quality upgrading, and strengthen the work system of "Big Quality".
Keywords： supply-side structural reformation manufacturing industry quality upgrading
Practice and Quest of Quality Control in Three Gorges Project
Wang Jiazhu,Xu Changyi
Strategic Study of CAE 2001, Volume 3, Issue 10, Pages 77-81
The Three Gorges Project (TGP) is a vitally important and backbone project in the development and harnessing of the Yangtze River. Since TOP started eight years ago, a matured and complete quality assurance system has been established with the whole process, full direction and sliced quality adiminstration. The quality of the project has been controlled effectively and the result is quite good and accords with the require-ments of design. Based on a detailed introdution of the TGP quality assurece and quality control, the paper give some suggestions and views about the work in the future.
Keywords： Three Gorges Project (TGP) quality assurece quality control
Wang Chengmin
Strategic Study of CAE 2009, Volume 11, Issue 6, Pages 107-110
Is earthquake predictable? This question has been discussed a lot by earthquake researchers and common people after the Wenchuan Earthquake.The specialists in Chinese Earthquake Prediction Consultation Committee started the aftershock prediction research after the earthquake to support emergency rescue and disaster relief with practical action.From May 15 to August 15, the committee formally reported prediction results for 3 times and the three strong aftershocks, i.e.M 6.0 earthquake on May 18 in Jiangyou, M 6.4 earthquake on May 25 in Qingchuan and M 6.1 earthquake on August 1 in Beichuan, have been correctly predicted.Through predicting aftershock isn't so difficult as predicting main shock, those people who think earthquake can be predicted after decades of generations and despise the academic viewpoint that earthquake is predictable should think over the fact that the prediction of all three aftershocks was correct without any miss report, and treat the academic viewpoint equally.
Keywords： Wenchuan Earthquake aftershock of Wenchuan Earthquake earthquake short -impending prediction
Amultimodal dense convolution network for blind image quality assessment Research Article
Nandhini CHOCKALINGAM, Brindha MURUGAN
Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 11, Pages 1601-1615 doi: 10.1631/FITEE.2200534
Keywords： No-reference image quality assessment (NR-IQA) Blind image quality assessment Multimodal dense convolution network (MDSC-Net) Deep learning Visual quality Perceptual quality
Development of Technology System for High-Quality Manufacturing in China
Lin Zhongqin, Xi Lifeng, Xia Tangbin, Zhao Yixi, Pan Ershun, Li Yanting
Strategic Study of CAE 2022, Volume 24, Issue 2, Pages 1-9 doi: 10.15302/J-SSCAE-2022.02.001
High-quality manufacturing is an innovative model that supports quality transformation and increases high-quality supply, and it is crucial for upgrading China’s manufacturing industry. Studying the technology system and development strategy for highquality manufacturing is significant for boosting China’s manufacturing sector. In this study, we first identify the problems regarding the manufacturing quality development in China and examine the key issues through a four-in-one framework that integrates supply side, demand side, government supervision, and quality infrastructure. Subsequently, we explore the connotation and characteristics of highquality manufacturing, establish a technology system that covers the entire process of design, production, operation, and maintenance, and propose several countermeasures. Our study shows that China’s manufacturing quality still suffers from low quality efficiency, limited international influence of manufacturing brands, and difficulty in quality upgrade of the industrial chain. The technology system we proposed is comprised of quality infrastructure, quality generic technologies, lifecycle quality control technologies, and resource elements. Furthermore, we suggest that China should strengthen the construction of high-quality manufacturing standards system, accelerate the upgrading of industrial chain quality, innovate the quality development mechanism, improve the supply capacity of quality resource elements, achieve breakthroughs in new technologies, and consolidate the quality infrastructure.
Keywords： high-quality manufacturing high-quality development technology system quality infrastructure quality generic technology quality control technology
World Trend for Apple Cultivation——mproving Fruit Quality
Xue Shizhao
Strategic Study of CAE 2001, Volume 3, Issue 6, Pages 81-88
Shifting from quantity-orientation to quality-orientation is the world trend for apple cultivation. Old practice of mere pursuing high yield should be abandoned. We should target at best fruit quality, with an output of 30,000 kg per hectare, to maintain the healthy orchard development and sharpen its competition edge in international market.
Keywords： apple cultivation world trend fruit quality
Meticulous quality management in aerospace project
Yuan Jiajun
Strategic Study of CAE 2011, Volume 13, Issue 8, Pages 36-42
China's aerospace project quality management is guided by Dr. Qian Xuesen’s system engineering theory. Based on the principle of “adherence, perfect and development”, driven by the major engineering projects, the theory and management innovation of aerospace project quality management has been continuously developed. Since the “11th Five-Year Plan”, CASC has been implemented aerospace project meticulous quality management to ensure the success of a series of major aerospace projects, such as China’s manned aerospace project , Chang’e project, etc. The meticulous quality management puts the emphasis on improving the capabilities of overall design improvement, system optimization, effectively identification and control of the technical risk, fast focusing, and amplifying and quantizing control capability of key details; highlights the effective integration and operation of organizational quality management system and project product assurance system; focuses on the development and application of the practical management tools and the synchronous improvement of technology, product, team and management maturity. This paper briefly reviewed the history of the development of quality management in aerospace industry, and proposed the concept and content meticulous quality management, and discusses the meticulous quality management theoretical basis, methods, work systems and the main approaches.
Keywords： aerospace quality management meticulous
Title Author Date Type Operation
Digital-Twin-Enhanced Quality Prediction for the Composite Materials
Yucheng Wang, Fei Tao, Ying Zuo, Meng Zhang, Qinglin Qi
Journal Article
Quality-related locally weighted soft sensing for non-stationary processes by a supervised Bayesian network with latent variables
Journal Article
Adaptive compression method for underwater images based on perceived quality estimation
Ya-qiong CAI, Hai-xia ZOU, Fei YUAN
Journal Article
Learning-based parameter prediction for quality control in three-dimensional medical image compression
Yuxuan Hou, Zhong Ren, Yubo Tao, Wei Chen,3140104190@zju.edu.cn,renzhong@cad.zju.edu.cn
Journal Article
Strategy for Improving Product Quality of Manufacturing Industry in China
Zhang Hao, Zhang Gang, Jiang Jiadong, Zong Xijun
Journal Article
Strategy of Manufacturing Quality Power
The Research Group for Manufacturing Quality Power Strategy
Journal Article
Export Quality Upgrading of Manufacturing Sector in Developing Countries—Based on the Data of China, India, and Brazil
Liu Weili,Zheng Qiming and Zhang Han
Journal Article
Quality Markers of Traditional Chinese Medicine: Concept, Progress, and Perspective
Yazhuo Li, Ying Xie, Yufei He, Wenbin Hou, Maoliang Liao, Changxiao Liu
Journal Article
Quality Upgrading of the Manufacturing Industry in Supply-Side Structural Reformation
Zhang Gang
Journal Article
Practice and Quest of Quality Control in Three Gorges Project
Wang Jiazhu,Xu Changyi
Journal Article
The scientific faith that earthquake is predictable should be insisted—the successful prediction of three strong aftershocks of Wenchuan Earthquake
Wang Chengmin
Journal Article
Amultimodal dense convolution network for blind image quality assessment
Nandhini CHOCKALINGAM, Brindha MURUGAN
Journal Article
Development of Technology System for High-Quality Manufacturing in China
Lin Zhongqin, Xi Lifeng, Xia Tangbin, Zhao Yixi, Pan Ershun, Li Yanting
Journal Article
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