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1,556 results on '"Xu, Dongsheng"'

2. Towards long-life 500 Wh kg−1 lithium metal pouch cells via compact ion-pair aggregate electrolytes

Author

Jie, Yulin, Wang, Shiyang, Weng, Suting, Liu, Yue, Yang, Ming, Tang, Chao, Li, Xinpeng, Zhang, Zhengfeng, Zhang, Yuchen, Chen, Yawei, Huang, Fanyang, Xu, Yaolin, Li, Wanxia, Guo, Youzhang, He, Zixu, Ren, Xiaodi, Lu, Yuhao, Yang, Ke, Cao, Saichao, Lin, He, Cao, Ruiguo, Yan, Pengfei, Cheng, Tao, Wang, Xuefeng, Jiao, Shuhong, and Xu, Dongsheng

Published
2024
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12. DEVICE: DEpth and VIsual ConcEpts Aware Transformer for TextCaps

Author

Xu, Dongsheng, Huang, Qingbao, Shuang, Feng, and Cai, Yi

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

Text-based image captioning is an important but under-explored task, aiming to generate descriptions containing visual objects and scene text. Recent studies have made encouraging progress, but they are still suffering from a lack of overall understanding of scenes and generating inaccurate captions. One possible reason is that current studies mainly focus on constructing the plane-level geometric relationship of scene text without depth information. This leads to insufficient scene text relational reasoning so that models may describe scene text inaccurately. The other possible reason is that existing methods fail to generate fine-grained descriptions of some visual objects. In addition, they may ignore essential visual objects, leading to the scene text belonging to these ignored objects not being utilized. To address the above issues, we propose a DEpth and VIsual ConcEpts Aware Transformer (DEVICE) for TextCaps. Concretely, to construct three-dimensional geometric relations, we introduce depth information and propose a depth-enhanced feature updating module to ameliorate OCR token features. To generate more precise and comprehensive captions, we introduce semantic features of detected visual object concepts as auxiliary information. Our DEVICE is capable of generalizing scenes more comprehensively and boosting the accuracy of described visual entities. Sufficient experiments demonstrate the effectiveness of our proposed DEVICE, which outperforms state-of-the-art models on the TextCaps test set. Our code will be publicly available., Comment: 11pages, 7figures. This work has been submitted to the IEEE for possible publication

Published
2023

26. Research on Networked Traction Power Supply System and Its Optimal Dispatching Strategy

Author

LI Hongbo, XU Dongsheng, HUANG Zhihao, YIN Xiaowei, ZHANG Min, WANG Xiong, and ZHANG Zhixue

Subjects
railway traction power supply system, regenerative braking energy, energy dispatching equipment, networked, Control engineering systems. Automatic machinery (General), TJ212-225, Technology
Abstract

Train regenerative braking energy accounts about 10%~30% of the total traction energy, and its efficient utilization is of great importance to building green and low-carbon railway traction power supply system. Traditional railway traction power supply system consists of multiple independent sections, and energy cannot be transferred between sections. This restricts the utilization of regenerative energy in the traction power supply system. To solve this problem, this paper proposes a networked traction power supply system, where energy dispatching equipment is installed in the section post to connect adjacent sections. Topology of the networked traction power supply system and principles of the energy dispatching equipment are introduced in this paper, and energy dispatching equipment group's optimal strategy aimed for cost reduction is proposed too. The simulation result shows that compared with the traditional traction power supply system, the forward energy of networked traction power supply system can be reduced by 17.3%, and the maximum power of substation can be reduced by about 19.0%. The correctness and effectiveness of the networked traction power supply system's working principle and dispatching strategy are verified.

Published
2023
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32. To identify issues that impact upon the acculturation and adaptation of Chinese Mandarin-speaking students taking undergraduate studies in British business schools

Author

Xu, Dongsheng

Subjects
650.071
Abstract

According to the Higher Education Statistics Agency (HESA, 2020), In 2018-19, the amount of student enrolments domiciled from China reached 115,435, 32% of non-UK domiciled students for their first year studies come from China. Despite the trend of more Chinese students studying in the UK, the problems and difficulties of acculturation and adaptation into local life and their academic studies are always challenging the Chinese students. This research aims to identify the impacting factors upon the acculturation and adaptation of Chinese Mandarin-speaking students during their business education at undergraduate level in the UK, so as to provide implications for all the stakeholders, including Chinese students, academics, and business schools, towards developing a more satisfying outcome for students during the period of their living and learning experience. Supporting this research investigation, the literature review works constructs a theoretical framework which encompasses the cultural difference at national, organisational, and personal level, the acculturation strategy and acculturation outcomes, the comparison of Chinese and British pedagogies, and the influencing factors in the intercultural learning environment. Eight research themes are identified from the theoretical framework, based upon which, to answer the research questions and to realise the research aims and objectives. Adopting interpretivism as the research philosophical stance, this research investigation chose to use the convergent parallel mixed methods, so as to collect and analyse data deductively and test the existing theories. A web based survey among three groups of total 172 Chinese students was administrated to collect quantitative data, who are going to study in the UK, who have been studying in the UK within three months, and who are going to graduate from their undergraduate studies within three months. Interviews with nineteen students and eighteen academics were conducted to collect the qualitative data concurrently. Theoretically, this research project implies that, for Chinese students, the short term immigrants who are pursuing academic achievement in the UK, the academic adjustment during their studies, should be added into the acculturation outcomes of their acculturation strategy that they may adopt, which is parallel to their sociocultural and psychological adjustments. Moreover, the trend of the effects on their acculturation during their life and studies is becoming mitigated from the sociocultural and psychological perspectives. Practical contributions from this study include propositions about the delivery of pre-departure training with the content of cultural and academic knowledge, the awareness of the Chinese students’ mindset development when an enquiry is formulated in the classroom, and the identification of the mediating role of the sociocultural adjustment in general life between Chinese students’ academic adjustment and their overall acculturation level. Based on the formulated theoretical framework and its underpinning research themes, and the mixed methods adopted within this research project, further research could be implemented on the acculturation of other ethnical student groups, Chinese visiting scholars, and professionals under the intercultural learning or business environment.

Published
2020

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