South China University Of Technology Research Articles

Preface

The 2019 5th International Conference on Energy, Environment and Materials Science (ICEEMS 2019) has been held on June 21-23,2019 in Singapore. ICEEMS 2019 is to bring together innovative academics and industrial experts in the field of energy, environment and materials science to a common forum. The primary goal of the conference is to promote research and developmental activities in energy, environment and materials science and another goal is to promote scientific information interchange between researchers, developers, engineers, students, and practitioners working all around the world. This year, ICEEMS 2019 was co-sponsored by Singapore Polytechnic and Nanjing University of Science and Technology.Assoc. Prof. Dr. Nur Islami (Physics PMIPA Department Universitas Riau, Indonesia), Prof. Cao Guan (Northwestern Polytechnical University) and Assoc. Prof. Zhenbo Xu (South China University of Technology, China) have been invited as the keynote speakers. The primary goal of the conference is to promote research and developmental activities in energy, environment and materials science and another goal is to promote scientific information interchange between researchers, developers, engineers, students, and practitioners working all around the world In this edition, ICEEMS 2019 is providing a venue of high quality state-of-the-art research papers in the following areas of interest:1. Energy Science, Environmental Pollution and Pollution Control2. Biomaterials, Composite Materials and Materials Processing Technology3. Power Electronics Applications and Smart Grid TechnologiesCommittee member, Conference Chairs, Technical Committee are avilable in the pdf.

Bulletin board

The 2nd IEEE International Conference on Electrical Materials and Power Equipment (ICEMPE 2019), was held in Guangzhou, China, from April 7 to 10, 2019. The conference was co-sponsored by the Engineering Dielectrics Committee of China Electrotechnical Society (CES) and the IEEE Dielectrics and Electrical Insulation Society (DEIS), and organized and technically supported by South China University of Technology (SCUT). Shengtao Li was the general conference chair. Yanpeng Hao was the executive chair of ICEMPE 2019. ICEMPE is a promotion of the Chinese National Conference on Engineering Dielectrics (NCED), which was founded in 1983 as a biennial forum.

The Co‐Assembly of Polyoxometalates and Quantum Dots for Hybrid Core‐Shell Nanoparticles

AbstractInvited for the cover of this issue is the group of Prof. Panchao Yin from the South China University of Technology, Guangzhou, China. The cover image shows the facial synthesis of hybrid core‐shell nanoparticles of quantum dots and polyoxometalates by a phase transfer protocol.

A practice of information processing by rearranging matrix of Jacques Bertin – application of diagram in environmental color workshop

Abstract. The goal of this research is to apply diagrams to environmental color studies. The experience of environmental color is not only visual experience, but also the relationship of the color and the form of the object, the material, the place, the human perception experience. Diagrams records these factors along with the human perception experiences. These diagrams make it possible to study and analyze environmental color more deeply and more easily. In this paper, we first reviewed the "case studies of environmental color workshops" and "theory of information processing by rearranging matrix of Jacques Bertin" which are related to this research. Next, we conducted an environmental color workshop and evaluated the application of diagrams at workshop by students and experts (design teachers and designers). As a result, we confirmed that the diagrams proposed by us are effective for the environmental color workshop. In particular, it was confirmed that these diagrams are effective for group discussion (analysis).The workshop was held at the South China University of Technology (Guangzhou, China) on October 14 – October 17, 2016 (Figure.1). The participants were 5 students. First, students walked along a path near the natural lake in the campus and recorded the observed color objects and their perception experiences. Next, the students (A, B, C, D, E) entered the observation results into the matrix type diagram (a) (Figure.2). In diagram (a), the colors observed by each student were displayed on the left side of the observation route, and the photographs of the color objects, the perception experiences on the color objects, and the landscape photographs of the observation place were arranged on the right side of the observation route. Next, according to Jacques Bertin's theory (visual variables and rearrangement of the matrix), diagram (a) was transformed into diagram (b) (Figure.3) and group discussion and information analysis were carried out. In diagram (b), color objects are represented as "rows", and various attributes of color objects as "columns". The attributes of color objects are the keywords extracted from the "perception experiences for color objects" in diagram (a). In the notation of visual variables, ordinary impression was displayed as gray dot, good impression was displayed as orange dot, bad impression was indicated as blue dot, and the number of observers was indicated by the size of the dot. Looking at Figure.3-left, the most common thing is finding color objects by "brightness", and the number of observers who recorded the "brightness" of bicycle is the largest. By rearranging the matrix in diagram (b), we found that the color objects can be divided into "gray", "white" and "yellow" (Figure.3-middle), there were many good impressions for "yellow and white (flowers)", and there were many bad impressions for "gray and white (street lights)" (Figure.3-right).

2019 International Conference on Intelligent Manufacturing and Intelligent Materials (2IM 2019)

PREFACE2019 International Conference on Intelligent Manufacturing and Intelligent Materials (2IM 2019) was held in Sanya, China from May 9 to 11, 2019. 2IM 2019 was co-organized by is organized by Harbin Institute of Technology, Hong Kong Society of Mechanical Engineers (HKSME) and Australian-China Advanced Material and Manufacturing Association, sponsored by South China University of Technology. The conference provides a useful and wide platform both for display the latest research and for exchange of research results and thoughts in Intelligent Manufacturing and Intelligent Materials other topics. The participants of the conference were from almost every part of the world, with background of either academia or industry, even well-known enterprise. The success and prosperity of the conference is reflected high level of the papers received.The proceedings are a compilation of the accepted papers and represent an interesting outcome of the conference. This book covers 2 chapters: Intelligent Manufacturing and Intelligent Materials.We would like to acknowledge all of those who supported 2IM 2019. Each individual and institutional help were very important for the success of this conference. Especially we would like to thank the organizing committee for their valuable advices in the organization and helpful peer review of the papers.We sincerely hope that 2IM 2019 will be a forum for excellent discussions that will put forward new ideas and promote collaborative researches. We are sure that the proceedings will serve as an important research source of references and the knowledge, which will lead to not only scientific and engineering progress but also other new products and processes.Prof. Ruxu Du, South China University of Technology, China

Preface

The organizing committee of the 5th International Conference on Electrical Engineering, Control and Robotics (EECR 2019) aimed to facilitate interaction among participants for the latest progress and development in the fields of electrical engineering, control and robotics. Through this conference, the committee intends to enhance the sharing of individual experiences and expertise in electrical engineering, control and robotics with particular emphasis on the technical challenges associated with varied applications in these fields.The conference was held in Xihu Hotel of SCUT, Guangzhou, China, January 12-14, 2019, organized by Sichuan Institute of Electronics with the support of South China University of Technology, University of Electronic Science and Technology of China and Southwest Minzu University. Despite the high quality of most of the submissions, the final proceedings of EECR 2019 includes 62 papers, which were presented at the conference and that were selected after a thorough reviewing process. The authors of these papers come from different countries from Europe, Australia and Asia etc..The contributions of the technical program committee and the referees are deeply appreciated. Most of all, we would like to express our sincere thanks to the authors for submitting their most recent works and the organizing committee for their enormous efforts to turn this event into a smoothly running meeting.We sincerely hope that this publication will prove to be an important resource for the scientific community.Prof. Chun-Yi Su Concordia University, Canada Jan. 18, 2019

Suitable resolution of EOS tables for neutron star investigations * * Supported by National Natural Science Foundation of China (11722546 and 11275073), Talent Program of South China University of Technology (K5180470), This Project is Sponsored by CSC and has Made Use of NASA's Astrophysics Data System

Inasmuch as the hydrostatic structure of the interior of neutron stars uniquely depends on the equation of state (EOS), the inverse constraints on EOS from astrophysical observations have been an important method for revealing the properties of high density matter. Currently, most EOS for neutron star matter are given in tabular form, but these numerical tables can have quite different resolution. To guarantee both the accuracy and efficiency in computing the Tolman-Oppenheimer-Volkoff equations, a concise standard for generating EOS tables with suitable resolution is investigated. It is shown that EOS tables with 50 points logarithmic-uniformly distributed in the supra-nuclear density segment [ ], where is the nuclear saturation density, correspond to the interpolation induced errors of ~0.02% for the gravitational mass and ~0.2% for the tidal deformability .

Reaction: Precision Macromolecules for Self-Assembly

Wei Zhang received his BS degree from Peking University and PhD degree in polymer science from the University of Akron (UA). He is now a postdoc at Harvard Medical School. Xuehui Dong received his BS degree at the University of Science and Technology of China and PhD degree in polymer science from UA. After completing postdoctoral research at the Massachusetts Institute of Technology, he joined the South China Advanced Institute for Soft Matter Science and Technology (AISMST) as a professor. Stephen Z.D. Cheng received his PhD degree from Rensselaer Polytechnic Institute. He has been at UA for his entire career and also serves as dean for AISMST at the South China University of Technology. He has received a number of awards and has been a member of the US National Academic of Engineering since 2008. His research interests span condensed states in polymers, liquid crystals, and hybrid systems.

Reaction: Size Distribution in Olefin Block Copolymers: Not Bad at All

Hongyu Chen completed his PhD in macromolecular science at Case Western Reserve University in 2010. He is a fellow of the Dow Chemical Company, where he focuses on developing new products. He is also a fellow of the American Physical Society and American Chemical Society. Valeriy Ginzburg completed his PhD in polymer physics at the Moscow Institute of Physics and Technology in 1992. He is a senior scientist at the Dow Chemical Company and a fellow of the American Physical Society.

Preservation and Valorisation of Public Historical Areas in Gaobu Village, Dong Minority of Hunan, China

The Dong minority communities are today, in a similar condition of many other Chinese rural settlements, deeply affected by the phenomenon of “Village Hollowing” and “Urbanization” over the last 20 years. This unprecedented exodus of rural populations to expanding urban areas, has resulted in almost vacant villages inhabited by struggling communities of mostly elderly people and children, the social and economic system has changed dramatically among Dong communities. Using the Dong Minority village of Gaobu, located along the Pingtan River in Hunan Province, China, as a pilot project, is a fully operating agricultural community with a population of over 2500 inhabitants. It has many typical architectural heritages mainly composed by 6 Drum-Towers, 2 Wind-Rain Bridges as well as other Han nationality’s buildings, a reflection of its rich cultural heritage and importance in the region. In July, 2017, a united summer workshop held in Gaobu village, was assembled and organized by school of architecture, Guangzhou University, Chinese University of Hong Kong, Hunan University, South China University of Technology and Polytechnic University of Milan. 56 master students, PhD students and Professors attended the workshop.The aim of the workshop is to develop an alternative and sustainable strategy to regenerate and preserve Dong Minority villages in China via architectural prototype and planning proposal, that respond to contemporary rural developments and foster minimum impact to the existing heritage of the village. Finally, a new collective and co-operative system, incorporating multiple function was offered. Meanwhile, an adaptive planning strategy that based on the needs of the community was proposed. Concentrating on the special link between dynamic heritage and villagers will provide a better rural living for the Dong community in the future.

Experimental and numerical investigation of mid-infrared laser in Pr3+-doped chalcogenide fiber**Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 61605095), the Natural Science Foundation of Zhejiang Province, China (Grant No. LY19F050004), the Natural Science Foundation of Ningbo City (Grant No. 2015A610038), the Open Fund of the Guangdong Engineering Technology Research and Development

We report on a chalcogenide glass fiber doped with Pr3+ that can be used for commercialized 1.5- and 2- laser excitations by emitting broadband – fluorescence, which is extruded into a preform and then drawn into a step-index fiber. The spectroscopic properties of the fiber and glass are reported, and the mid-infrared fiber lasers are also numerically investigated. Cascade lasing is employed to increase the inversion population of the upper laser level. The particle swarm approach is applied to optimize the fiber laser parameters. The output power can reach 1.28 W at 4.89- wavelength, with a pump power of 5 W, excitation wavelength at , Pr3+ ion concentration at 4.22 ×1025 ions/m3, fiber length at 0.94 m, and fiber background loss at 3 dB/m.

Curriculum Gaps of Bachelor’s Business Education in Universities of Bangladesh: An Analysis

This study investigates about how does a bachelor’s business education curriculum experience different gaps which arise in different phases of curriculum design, development, and implementation process in some selected universities of Bangladesh. This study also proposes a curriculum gap model by defining the different types of curriculum and real-life curriculum gaps. This study conducts a sample questionnaire survey on 155 respondents selected from alumni, employers from different sectors, university faculty members, and students from Jagannath University, ASA University Bangladesh, Jahangirnagar University, University of Dhaka, Dhaka International University through personal contact and interview. Secondary data have been used for this study from different articles, publications, books, speeches in conferences and seminar classes, and from existing master’s and bachelor’s business education curriculum and websites of some selected universities including South China University of Technology, and The University of British Columbia, Canada. This study lists the top most important reasons, such as industry needs are different from university graduation curriculum, there is no connection among university, government, and industry, etc. In Bangladesh, there are no big research projects on industry development and/or business development funded by the companies, conducted by the university, and cooperated by the government. The curriculum gaps also arise while addressing the lessons in the class, there remains a lack of proper sources of information about real life job demand in the context of globalization. This study also lists the top most alternative solutions to minimize curriculum gaps, such as, there should be a thorough study about world-class standard curriculum of different top ranked universities in the world, and employment assessment tests format as per industry needs should be linked with the lessons of university graduation business curriculum, there should be connection among university, government, and industry, etc. This study also proposes a theory by mapping curriculum gap model. These findings and some general comments for improvement have implications to the users of curriculum and decision makers in education sector.

Factors Influencing Online Shopping Behavior of International Students: A Case Study in Guangzhou, China

The aim of the study to explore the factor influencing online shopping behavior of international students who are studying in Guangzhou, china. The current study surveyed only the international Students of South China University of Technology of Guangzhou city in China and total 169 questionnaire samples have been distributed. Quantitative study approached has been adopted to collect analyze and present data in this study. Data for the study is drawn from two main sources-primary source and secondary source. Primary data was collected through the administration of structured questionnaires from 169 international university students. The collected sample was analyzed by using (SPSS) software which is convenient to use and fast to get the results. Frequency, descriptive analysis, and to check reliability of the tool internal consistency method using SPSS by finding Cronbach‘s alpha value lastly correlation factors was determined. And Secondary data is obtained from journals, published books, different blogs, lecture notes and internet etc. This study focused on strategies for analyzing the present scenario of international students as a shopper; survey their shopping behavior, factor influencing their online shopping patterns and consumption behavior. Functionality, privacy, trust, firm reputation and perceived value are the major influencing factors on consumer online shopping behavior. The relationship and data reliability of the influencing factors are significantly reliable and has significant relationships which justify the research. Study concluded that among the influencing factors functionality factor ranked top importance followed by privacy, firm reputation, perceived value, and trust. The lower ranking of trust is indicating that major respondents group feels uncomfortable or unsafe to do online shopping.

Construction of Practical Curriculum for Master of Art Design Based on Exploration-Oriented: Expressive Language in Visual Communication Design

Analyze the current situation of the practical curriculum setting of the master's degree design course, and find out the limitations of the master's practice course in the emergence stage. For the actual situation of design school professional distribution in South China University of Technology, through the construction of the Language and Performance of Form in Visual Communication Design (Practical Teaching), focusing on the core themes of exploration, which explored the concepts, methods, contents, and introduction models of inter-professional practice courses to achieve the goal of systematic teaching, and the effect was remarkable through the construction of effective results. The course construction focuses on cultivating and mobilizing the diversity of design thinking enthusiasm and visual form of students in different majors, and is used for the construction of follow-up practical courses.

Benchmarking a large-scale FIR dataset for on-road pedestrian detection

Far infrared (FIR) pedestrian detection is an essential module of advanced driver assistance systems (ADAS) at nighttime. Although recent deep learning-based detectors have achieved excellent results on visible images in the daytime, their performance on nighttime FIR images is still unidentified, due to the existing nighttime FIR data set is not sufficient to fully train a deep learning detector. To this end, a nighttime FIR pedestrian dataset with the largest scale at present is introduced in this paper, which is called SCUT (South China University of Technology) dataset. The dataset contains fine-grained annotated videos recorded from variable road scenes. In addition, a detailed statistical analysis of the dataset is provided and four representative pedestrian detection methods are evaluated. Benefit from the volume and diversity of training data, the experiment results show that convolutional neural networks (CNN) based detectors obtained good performance on FIR image. To further explore the performance of pedestrian detection on FIR images, four important modifications on Faster R-CNN were studied and a strong baseline for SCUT dataset was proposed, which achieves the best detection result by reducing log-average miss rate from 36.78% to 17.73%. The dataset will be public online (SCUT dataset will be published on: https://github.com/SCUT-CV/SCUT_FIR_Pedestrian_Dataset).

Isospin effect in peripheral heavy-ion collisions at Fermi energies**Supported by the National Natural Science Foundation of China (11722546, 11675226) and the Talent Program of South China University of Technology (K5180470)

The isospin effect in peripheral heavy-ion collisions was thoroughly investigated within the framework of the Lanzhou quantum molecular dynamics (LQMD) transport model. A coalescence approach was used to recognize the primary fragments formed in nucleus-nucleus collisions. The secondary decay process of these fragments was described using the statistical code GEMINI. The production mechanism and isospin effect of the projectile-like and target-like fragments were analyzed using the combined approach. It was found that the isospin migration from the high-isospin density to the low-density matter occurred in the neutron-rich nuclear reactions, i.e., 48Ca+208Pb, 86Kr+48Ca/208Pb/124Sn, 136Xe+208Pb, 124Sn+124Sn, and 136Xe+136Xe. A hard symmetry energy was available for creating the neutron-rich fragments, particularly in the medium-mass region. The isospin effect of the neutron-to-proton (n/p) ratio of the complex fragments was reduced when the secondary decay process was included. However, a soft symmetry energy enhanced the n/p ratio of the light particles, particularly at kinetic energies greater than 15 MeV/nucleon.

Sustainable Conversion of Glycerol into Value‐Added Chemicals by Selective Electro‐Oxidation on Pt‐Based Catalysts

AbstractThe front cover artwork is provided by Shen's group from the South China University of Technology (China). The image shows glycerol electro‐oxidation over a series of Pt‐based catalysts in alkaline solutions. The activity and product distribution of glycerol oxidation could be optimized by tuning the catalyst composition and the applied potentials. Read the full text of the Article at 10.1002/celc.201800309.

A new inflow turbulence generator for large eddy simulation evaluation of wind effects on a standard high-rise building

The generation of inflow turbulence is among the key issues that affect the large eddy simulation (LES) of atmospheric boundary layer (ABL) flow. An improved inflow turbulence generator for LES, the narrowband synthesis random flow generator (NSRFG), is proposed in this study based on previous random flow generation (RFG) techniques. The novel NSRFG technique yields a more concise expression and overcomes some defects in the previous study of RFG techniques by strictly maintaining a divergence-free condition, coherency function, and turbulent spectra of the ABL flow theoretically. The new technique was validated by simulating a typical turbulent ABL flow, and comparisons between the NSRFG method and the consistent discretizing and synthesizing RFG method are presented. The new technique was then applied to the numerical simulation of the turbulent flow around the CAARC standard building model, which was tested in the boundary layer wind tunnel of the South China University of Technology. A detailed comparison of the wind effects obtained from numerical simulations and a wind tunnel test, including wind pressures, base moments, and wind-induced responses, was finally performed to demonstrate the feasibility and effectiveness of the new technique.

Discussion Teaching of Real Estate Development and Management

"Real estate development and management" is an economic management courses which is under the background of architecture, urban planning and landscape architecture in South China University of Technology, In view of its realistic, comprehensive and practical characteristics, the course aims to stimulate students to think from different angles as the starting point, and carry out the practice of interactive research teaching mode. This paper studies the curriculum orientation, objectives and design, based on the aspects of teaching content, professional background and teaching effect, and tries to construct the real estate curriculum structure which adapts to the teaching system of architecture.

Progress in selective laser melting equipment, related biomedical metallic materials and applications

This paper introduces the latest achievements of the South China University of Technology in basic research on selective laser melting (SLM), applications of SLM manufacturing equipment, and biomedical metallic materials manufactured by SLM. First, we describe the use of DiMetal-100 equipment to study the process parameters, microstructure, and mechanical properties of three kinds of metal medical materials manufactured by SLM, including 316L stainless steel, CoCrMo, and Ti6Al4V. Second, we describe the application of 316L stainless steel manufactured by SLM to personalized lingual orthodontic brackets and surgical guide plates, the application of CoCrMo manufactured by SLM to knee prostheses and dental crowns and bridges, and the research results of Ti6Al4V manufactured by SLM in the treatment of pelvic fracture bone plates and personalized cranial prostheses. Finally, we introduce the development directions and research plans for SLM technology at the South China University of Technology, including the manufacture of a new porous structure by SLM directly, the manufacture by SLM of various material products simultaneously, SLM + material-reducing hybrid manufacturing, improving the negative feedback systems of SLM equipment, and developing SLM manufacturing processes using ceramics and new metals.