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96 results on '"Kang, Chengwei"'

1. The Effectiveness of Culinary Therapy Platform System: A Study Examining Cooking Course as a Mental Health Intervention for College Students

Author

Wu, Xiaofeng, Duan, Yijia, Kang, Chengwei, Man, Siu Shing, Chen, Xingheng, Zhu, Zhiheng, Goos, Gerhard, Series Editor, Hartmanis, Juris, Founding Editor, van Leeuwen, Jan, Series Editor, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Kobsa, Alfred, Series Editor, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Nierstrasz, Oscar, Series Editor, Pandu Rangan, C., Editorial Board Member, Sudan, Madhu, Series Editor, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Weikum, Gerhard, Series Editor, Vardi, Moshe Y, Series Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, and Duffy, Vincent G., editor

Published
2024
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7. Ultra-Precision Machining Technology and Equipment for High-End Optical Elements

Author

Jiang Zhuangde, Li Changsheng, Sun Lin, Duan Duanzhi, Kang Chengwei, Chen Shanshan, Lin Qijing, and Yang Shuming

Subjects
optical element, precision manufacturing, ultra-precision machine tool, ultra-precision machining, optical fabrication, Engineering (General). Civil engineering (General), TA1-2040
Abstract

High-end optical elements determine the performance of high-end equipment. Researching the ultra-precision machining technology and equipment for high-end optical elements is crucial for strengthening China's manufacturing industry and satisfying the requirements of the high-end equipment industry. In this study, the ultra-precision machining methods and equipment for optical elements, high-performance basic components, and measurement methods and equipment used in ultra-precision optical machining are analyzed. Five development trends are summarized including extremalization of precision and size, integration of shape and performance, compounding of machining technologies, integration of machining and measurement, and intellectualization of equipment and processes. Through extensive survey and discussions, a technology roadmap for ultra-precision manufacturing of high-end optical elements by 2035 is proposed from the aspects of demand, goals, products, key technologies, application demonstrations, and guarantees. Furthermore, several development suggestions are proposed, including (1) optimizing the innovation system and establishing technical alliances by organizing superior resources, (2) increasing resource guarantees and laying out plans on basic and technical research,(3) strengthening talent cultivation to expand the scale of the multi-level talent team, and (4) building a solid foundation for industrial development and cultivating small-sized leading enterprises.

Published
2023
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8. Hybrid Pulse Width Modulation for Metro Permanent Magnet Traction Motors

Author

Kang, Chengwei, Zhang, Shuo, Cong, Peicheng, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Liang, Jianying, editor, Liu, Zhigang, editor, Diao, Lijun, editor, and An, Min, editor

Published
2022
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9. Research on IGBT Condition Monitoring Based on On-State Voltage Drop

Author

Kang, Chengwei, Cong, Peicheng, Li, Jinpeng, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Liang, Jianying, editor, Liu, Zhigang, editor, Diao, Lijun, editor, and An, Min, editor

Published
2022
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12. A Simplified SVPWM Method Applied to Subway Traction Inverter

Author

Kang, Chengwei, Cong, Peicheng, Gao, Zichen, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, Ma, Weiming, editor, Rong, Mingzhe, editor, Yang, Fei, editor, Liu, Wenfeng, editor, Wang, Shuhong, editor, and Li, Gengfeng, editor

Published
2021
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13. Research on High Precision AC Voltage Phase and Amplitude Detection Algorithms Based on SPLL and CORDIC

Author

Kang, Chengwei, Wang, Ping, Li, Weijie, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, Ma, Weiming, editor, Rong, Mingzhe, editor, Yang, Fei, editor, Liu, Wenfeng, editor, Wang, Shuhong, editor, and Li, Gengfeng, editor

Published
2021
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14. A Novel PLL for Auxiliary Supply System in Railway Vehicles

Author

Kang, Chengwei, Lin, Yang, Li, Weijie, Wang, Ping, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, Ma, Weiming, editor, Rong, Mingzhe, editor, Yang, Fei, editor, Liu, Wenfeng, editor, Wang, Shuhong, editor, and Li, Gengfeng, editor

Published
2021
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21. Study on Steady-State Output Characteristics of Three-Level Boost Converter

Author

Kang, Chengwei, Wang, Wei, Zhang, Guoqin, Du, Huiqing, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, Liu, Baoming, editor, Liu, Zhigang, editor, Diao, Lijun, editor, and An, Min, editor

Published
2020
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22. Nano-cutting mechanism of ion implantation-modified SiC: reducing subsurface damage expansion and abrasive wear.

Author

Kang, Qiang, Kong, Xianguang, Chang, Jiantao, Fang, Xudong, Kang, Chengwei, Wu, Chen, Li, Changsheng, Maeda, Ryutaro, and Jiang, Zhuangde

Subjects
FRETTING corrosion, ION implantation, DISLOCATION nucleation, MECHANICAL wear, STRAIN rate, MACHINE performance
Abstract

This study utilized ion implantation to modify the material properties of silicon carbide (SiC) to mitigate subsurface damage during SiC machining. The paper analyzed the mechanism of hydrogen ion implantation on the machining performance of SiC at the atomic scale. A molecular dynamics model of nanoscale cutting of an ion-implanted SiC workpiece using a non-rigid regular tetrakaidecahedral diamond abrasive grain was established. The study investigated the effects of ion implantation on crystal structure phase transformation, dislocation nucleation, and defect structure evolution. Results showed ion implantation modification decreased the extension depth of amorphous structures in the subsurface layer, thereby enhancing the surface and subsurface integrity of the SiC workpiece. Additionally, dislocation extension length and volume within the lattice structure were lower in the ion-implanted workpiece compared to non-implanted ones. Phase transformation, compressive pressure, and cutting stress of the lattice in the shear region per unit volume were lower in the ion-implanted workpiece than the non-implanted one. Taking the diamond abrasive grain as the research subject, the mechanism of grain wear under ion implantation was explored. Grain expansion, compression, and atomic volumetric strain wear rate were higher in the non-implanted workpiece versus implanted ones. Under shear extrusion of the SiC workpiece, dangling bonds of atoms in the diamond grain were unstable, resulting in graphitization of the diamond structure at elevated temperatures. This study established a solid theoretical and practical foundation for realizing non-destructive machining at the atomic scale, encompassing both theoretical principles and practical applications. [ABSTRACT FROM AUTHOR]

Published
2024
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31. Tool path planning on triangular mesh surfaces based on the shortest boundary path graph.

Author

Liang, Fusheng, Kang, Chengwei, and Fang, Fengzhou

Subjects
GEODESIC distance, CONTOURS (Cartography), GEODESICS, SCALLOPS, HARMONIC maps
Abstract

In this paper, a new method is developed for tool path planning on triangular mesh surfaces with consideration of the scallop height restriction and the path smoothness. This method first maps the triangular mesh surface into a unit disk region by using a harmonic map algorithm, and then the shortest boundary path graph (SBPG) is constructed on the unit disk region to describe the shortest geodesic distance from each mesh vertex to the surface boundary. The tool path is then obtained by inversely mapping the contours of SBPG from the harmonic mapped region to the physical space of mesh surface. During this process, a subdivision method is used to boost the computing efficiency and a smoothing treatment is conducted on the SBPG to improve the path smoothness. The tool path planning is performed starting from the surface boundary in an iteration process. Taking the level difference of SBPG contours as the initial path interval and being supplemented by a correction process, the maximal step distance between any two paths, which meets the requirement of scallop height restriction, can be determined efficiently. Typical simulation cases and experiments are carried out to illustrate the effectiveness of the proposed method. [ABSTRACT FROM AUTHOR]

Published
2022
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35. A review on tool orientation planning in multi-axis machining.

Author

Liang, Fusheng, Kang, Chengwei, and Fang, Fengzhou

Subjects
MACHINING, MACHINE tools, MACHINERY, TOOLS
Abstract

Tool path planning is critical to fully realise the producing capabilities of multi-axis machine tools and improve the precision and efficiency in multi-axis machining. Up to now, more than 400 articles have been published for tool path planning of multi-axis machine tools. Among them, most of the articles mainly focus on the topology of tool path while few studies are conducted for planning of tool orientation. Moreover, the factors that affect the planning of tool orientation are derived from multiple aspects, such as interference, collision and cutting strip width, which poses great challenges on tool orientation planning. To generate a time-optimal tool path with high machining precision, there is an urgent need to ascertain the influences of tool orientation arrangement on the multi-axis machining process. Therefore, in this work, a literature review on tool orientation planning of multi-axis machine tools is implemented. The main factors that influence the planning of tool orientations are systematically summarised, and the advantages and disadvantages of the corresponding methods related to these factors are discussed. Some research issues and challenges encountered in the tool orientation planning are identified. Furthermore, the methodologies that have potential to address the research issues in the future are prospected. [ABSTRACT FROM AUTHOR]

Published
2021
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47. Structural and optical properties of Zn-deficient ZnGa2O4 nanoparticles hydrothermally synthesized at low temperature by rapid heating using microwaves.

Author

Ishii, Satoshi, Suzuki, Satoru, Kang, Chengwei, Yoshida, Michiyuki, Nakane, Takayuki, Nakayama, Minako, and Naka, Takashi

Subjects
MICROWAVE heating, OPTICAL properties, SEMICONDUCTOR nanoparticles, LOW temperatures, NANOPARTICLES
Abstract

Wide-bandgap ZnGa2O4 (ZGO) semiconductor nanoparticles with oxygen vacancies were prepared by a hydrothermal method via microwave heating at temperatures less than 120 °C using a domestic microwave with an irradiation time as short as 150 s. The effect of pH of the precursor solution on the structural and optical properties of the ZnGa2O4 nanoparticles was investigated. The solution pH hardly affected the ZnGa2O4 particle size; the sizes remained almost unchanged in the range from 4.98 ± 0.09 to 6.32 ± 0.07 nm as pH was varied between 5.2 and 7.0. However, with decreasing solution pH, the number of oxygen vacancies increased owing to the generation of zinc deficiencies in the ZnGa2O4 nanoparticles. Consequently, the bandgap increased with decreasing pH, reaching a maximum of 4.78 eV at pH 5.2, when the ZnO/Ga2O3 molar ratio in the nanoparticles was the lowest (= 0.18). Moreover, the photoluminescence intensity also increased with decreasing pH, without any spectral shift. The photoluminescence was not dominated by the quantum size effect, but by the number of oxygen vacancies. The rapid and low-temperature microwave-based synthesis strategy of ZnGa2O4 nanophosphors developed in this study is expected to provide an energy-saving method for producing nanoparticles with controlled optical properties, contributing to future optoelectronic device applications. [ABSTRACT FROM AUTHOR]

Published
2022
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