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36 results on '"Cui, FangSen"'

1. Benchmarking the aircraft noise mapping package developed for a unified urban environmental modelling tool

Author

Ang Linus Yinn Leng, Cui Fangsen, and Poh Hee Joo

Subjects
aircraft noise, urban noise, software development, environmental modelling, urban planning, Environmental technology. Sanitary engineering, TD1-1066
Abstract

In densely populated cities, residents living near aerodromes may experience heightened exposure to aircraft noise. With hybrid work arrangement, authorities have observed a rise in the number of complaints filed by residents affected by aircraft noise. In view of this problem, urban planners are now placing even more emphasis on exploring solutions that can manage aircraft noise in new and existing residential areas. To achieve this objective, urban planners usually rely on external acoustic consultants to generate noise maps using commercial software. However, urban planners may need to quickly evaluate potential noise issues in the neighbourhood so that noise management strategies can be brainstormed in advance. In this article, we present the development and benchmarking of a package designed to easily generate aircraft noise maps via simplified procedures and a reduced amount of input data, with acceptable accuracy in the results. These benefits distinguish our developed package from commercial software. Our developed package was eventually integrated into an in-house-developed unified urban environmental modelling tool that aims to help urban planners design more liveable and sustainable residential towns in an intuitive and quick manner.

Published
2024
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5. Solitons, Lumps, Breathers, and Interaction Phenomena for a (2+1)-Dimensional Variable-Coefficient Extended Shallow-Water Wave Equation.

Author

Qiu, Tianwei, Wang, Zhen, Yang, Xiangyu, Wei, Guangmei, and Cui, Fangsen

Subjects
WAVE equation, BILINEAR forms, VECTOR fields, ANALYTICAL solutions, SOLITONS
Abstract

In this paper, soliton solutions, lump solutions, breather solutions, and lump-solitary wave solutions of a (2+1)-dimensional variable-coefficient extended shallow-water wave (vc-eSWW) equation are obtained based on its bilinear form. By calculating the vector field of the potential function, the interaction between lump waves and solitary waves is studied in detail. Lumps can emerge from the solitary wave and are semi-localized in time. The analytical solutions may enrich our understanding of the nature of shallow-water waves. [ABSTRACT FROM AUTHOR]

Published
2024
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22. Development of a metamaterial for acoustic and architectonical improvement of window design

Author

Fusaro, Gioia, Yu, Xiang, Cui, Fangsen, and Kang, Jian

Abstract

Proceedings of the ICA 2019 and EAA Euroregio : 23rd International Congress on Acoustics, integrating 4th EAA Euroregio 2019 : 9-13 September 2019, Aachen, Germany / proceedings editor: Martin Ochmann, Michael Vorländer, Janina Fels 23rd International Congress on Acoustics, integrating 4th EAA Euroregio 2019, ICA 2019, Aachen, Germany, 9 Sep 2019 - 13 Sep 2019; Aachen (2019)., Published by Aachen

Published
2019

23. Modeling sound transmission through a periodic acoustic metamaterial grating of finite size

Author

Yu, Xiang, Cui, Fangsen, and Wong, Wei Hin Mark

Abstract

Proceedings of the ICA 2019 and EAA Euroregio : 23rd International Congress on Acoustics, integrating 4th EAA Euroregio 2019 : 9-13 September 2019, Aachen, Germany / proceedings editor: Martin Ochmann, Michael Vorländer, Janina Fels 23rd International Congress on Acoustics, integrating 4th EAA Euroregio 2019, ICA 2019, Aachen, Germany, 9 Sep 2019 - 13 Sep 2019; Aachen (2019)., Published by Aachen

Published
2019
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31. PREFACE

Author

LI, Hua, primary, CUI, Fangsen, additional, GOH, Kek Boon, additional, LIU, Zishun, additional, RAJAPAKSE, Nimal, additional, and VEDANTAM, Srikanth, additional

Published
2017
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35. Thoracic aorta stent grafts design in terms of biomechanical investigations into flexibility

Author

Linhui Wu, Fangsen Cui, Gang Chen, Junwei Yang, Zhuang Liu, Pei Ho, Jinxiang Dong, Liping Wang, Liu, Zongchao, Wu, Linhui, Yang, Junwei, Cui, Fangsen, Ho, Pei, Wang, Liping, Dong, Jianghui, and Chen, Gongfa

Subjects
Aortic arch, Flexibility (anatomy), Materials science, medicine.medical_treatment, lcsh:Biotechnology, finite element method, Aorta, Thoracic, Prosthesis Design, Blood Vessel Prosthesis Implantation, thoracic aorta, geometric parameters, medicine.artery, lcsh:TP248.13-248.65, medicine, Thoracic aorta, Applied Mathematics, lcsh:Mathematics, Single factor, Stent, General Medicine, lcsh:QA1-939, Finite element method, Blood Vessel Prosthesis, Computational Mathematics, flexibility, medicine.anatomical_structure, Treatment Outcome, surgical procedures, operative, Modeling and Simulation, orthogonal test, cardiovascular system, Stents, General Agricultural and Biological Sciences, Biomedical engineering
Abstract

Glioma is the most common and most serious form of brain tumors that affects adults. Accurate prediction of survival and phenotyping of low-grade glioma (LGG) patients at high or low risk are the key to achieving precision diagnosis and treatment. This study is aimed to integrate both magnetic resonance imaging (MRI) data and gene expression data to develop a new integrated measure that represents a LGG patient's disease-specific survival (DSS) and classify subsets of patients at low and high risk for progression to cancer. We first construct the gene regulatory network by using gene expression data. We obtain twelve network modules and identify eight image biomarkers by using the Cox regression model with MRI data. Furthermore, correlation analysis between gene modules and image features identify four radiomic features. The least absolute shrinkage and selection operator (Lasso) method is applied to predict these image features with gene expression data when lacking MRI data or image segmentation technology. Furthermore, the support vector machine (SVM)-based recursive feature elimination method has been established to predict DSS using gene signatures. Finally, 4 image signatures and 43 gene signatures are recognized to be associated with the patient's prognosis. An integrated measure for combining image and gene signatures is obtained through the PSO algorithm. The concordance index (C-index) and the time-dependent receiver operating characteristic (ROC) analysis are used to evaluate prediction accuracy. The C-index obtained for this integrated measure is 0.8071 and the area under the curve (AUC) of the ROC curve is 0.79, which are higher than any other single features. The 72.1% accuracy of classification of patients is better than the accuracy associated with the published work. These results demonstrate that integration analysis of radiomic and genomic data can improve the accuracy of the prediction of survival for lower grade gliomas. Refereed/Peer-reviewed

Published
2021

36. Thoracic aorta stent grafts design in terms of biomechanical investigations into flexibility.

Author

Liu Z, Wu L, Yang J, Cui F, Ho P, Wang L, Dong J, and Chen G

Subjects
Blood Vessel Prosthesis, Prosthesis Design, Stents, Treatment Outcome, Aorta, Thoracic surgery, Blood Vessel Prosthesis Implantation
Abstract

The present study aimed to design and optimize thoracic aorta stent grafts (SGs) based on the influence of geometric parameters on flexibility and durability. Five geometric parameters were selected, including strut height, strut number, strut radius, wire diameter, and graft thickness. Subsequently, 16 finite element (FE) models were established with an orthogonal design consisting of five factors and four levels. The influences of a single factor and all the geometric parameters' influence magnitude on the device flexibility were then determined. The results showed that all the other parameters had an opposite effect on global and local flexibility except for the wire diameter. The graft thickness exhibited the most remarkable impact on the global flexibility of SGs, while the strut radius influenced flexibility slightly. However, for the local flexibility analysis, the graft thickness became the least significant factor, and the wire diameter exerted the most significant influence. The SG with better global flexibility can be guided easily in the tortuous vessels, and better local flexibility improves the sealing effect between the graft and aortic arch. In conclusion, this study's results indicated that these geometric parameters exerted different influences on flexibility and durability, providing a strategy for designing thoracic aorta SGs, especially for the thoracic aortic arch diseases.

Published
2020
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