Chenjie Wang, Lu Yin, Qing Zhao, Wei Wang, Chengyuan Li and Bin Luo
To ensure the safety of electric power supply, it is necessary to inspect substation equipment. With the dramatic increase in the number of substations, especially indoor…
Abstract
Purpose
To ensure the safety of electric power supply, it is necessary to inspect substation equipment. With the dramatic increase in the number of substations, especially indoor substations, intelligent robot inspection has become an important development direction. This paper aims to describe the design of a trackless robot with a robotic arm, which is capable of navigating autonomously and inspecting the equipment in a narrow and complex indoor substation.
Design/methodology/approach
A robust four-wheel platform powered by electric motors is used to carry the robot. By fusing multiple-sensor data and visual markers, the robot achieves autonomous movement based on simultaneous localization and mapping. In addition, to accurately obtain the reading of meters located at height or in a narrow space, the robot is equipped with a newly designed visual servo robotic arm.
Findings
In practical application, the robot satisfies the requirements of substation inspection, improves work efficiency, saves costs and achieves good results. The robot is also approved by the relevant departments of the State Grid Corporation of China.
Practical implications
After stable operation in a substation for a period of one year, the robot shows high efficiency and stability, meeting the requirements of indoor substation inspection. Meanwhile, the robot greatly promoted the realization of indoor and outdoor integrated substation automatic inspection, and is expected to be further applied in other industrial inspection sites, including mine, tunnel and nuclear power plant.
Originality/value
Due to the complex indoor environment, most of the existing inspection robots are only used outdoors, and there are no good trackless inspection robots for use indoors. The proposed robot is a trackless intelligent inspection robot for use in indoor substations. The robot features a number of important modules, including an autonomous localization and navigation module and a visual servo manipulator module, which can be used in narrow spaces or at height.
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While higher education has been encouraging interdisciplinary research, few studies have been conducted to understand how interdisciplinarity shapes the identity construction of…
Abstract
Purpose
While higher education has been encouraging interdisciplinary research, few studies have been conducted to understand how interdisciplinarity shapes the identity construction of scholars, especially doctoral students who may already strive to socialize into academia.
Design/methodology/approach
Therefore, this study adopts the approach of autoethnography to analyze my lived experience of developing disciplinary literacy and constructing interdisciplinary identity as a Chinese international doctoral student at a North American university. Communication theory of identity (CTI) is the theoretical framework through which I understand the negotiation among my personal, enacted, relational and communal identities while communicating my research through diverse literacy practices.
Findings
This autoethnography reveals that interdisciplinary doctoral students can flexibly use discursive resources from different disciplines and literacy practices in both English and their first language to dynamically create interdisciplinary identities communicable to different discourse communities. Their identities in different disciplines can develop simultaneously, rather than suppressing one for the development of the other as they do interdisciplinary research.
Originality/value
This study first extends current scholarly discussion of disciplinary literacy to a less-investigated setting, i.e. doctoral education in higher education. Second, it adds an additive and current layer of interdisciplinarity to the existing understanding of international doctoral students’ identity construction. Third, it helps to understand how the development of disciplinary literacy can facilitate disciplinary identity construction and how disciplinary identity construction can facilitate the development of disciplinary literacy.
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Zejun Li, Chengyuan Wang, Qiong Wang and Biao Luo
This paper aims to summarize antecedents and consequences of risk-taking in tournaments and show the development of tournament optimization considering risk-taking. Moreover…
Abstract
Purpose
This paper aims to summarize antecedents and consequences of risk-taking in tournaments and show the development of tournament optimization considering risk-taking. Moreover, further expansion expectations related to antecedents and consequences of risk-taking in tournaments and tournament optimization considering risk-taking are discussed.
Design/methodology/approach
A comprehensive bibliographic retrieval and further literature review and systematics re-organization are used to build the framework with respect to risk-taking in tournaments. Then, qualitative analysis is used to present conclusions of existing research.
Findings
By summarizing various antecedents, different consequences and tournament optimizations with regard to risk-taking in tournaments of existing research, the authors present a series of research opportunities regarding risk-taking in tournaments that can propel the advancement of tournament theory.
Originality/value
The studies on risk-taking in tournament have been recently received wide attention and are growing vigorously. Based on the summary and re-organization, the framework of literature studying risk-taking in tournaments is built. This literature review also helps researchers learn the advance of risk-taking in tournament and provides fruitful direction for future research on this topic.
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The issue of concurrent jurisdiction over cross-border crimes has become common in a globalizing world, while the rigid compliance with territoriality and active personality…
Abstract
Purpose
The issue of concurrent jurisdiction over cross-border crimes has become common in a globalizing world, while the rigid compliance with territoriality and active personality jurisdiction has created a legal vacuum for cross-border crimes in many situations. The jurisdiction dispute between mainland China and Taiwan over cross-border telecom fraud crimes is a good example. In recent years, the Ministry of Public Security of the People’s Republic of China cracked down a series of cross-border telecom fraud crimes against mainland residents and extradited suspects to mainland China. Given a certain proportion of Taiwan residents in criminal gangs, the Taiwan side raised jurisdiction objections, arguing that mainland China had no right to exercise jurisdiction over Taiwanese criminals. The essence of the jurisdiction dispute between two sides is the concurrence of Taiwan’s right to exercise active personality jurisdiction and the mainland’s right to exercise passive personality jurisdiction. The purpose of this paper is to analyze the connotation of different jurisdiction principles (namely, territorial, active personality, protective and passive personality jurisdiction) and reinterpret their prioritization of applicability from a jurisprudential perspective, and thus, enhance the theoretical basis for resolving the issue of concurrent jurisdiction over cross-border crimes.
Design/methodology/approach
By reviewing the historical trajectory of major jurisdiction principles since the 1920s, and studying the specificities of the case in this context, this paper argues that territorial jurisdiction and active personality jurisdiction have presumed priority but not an absolute priority for resolving the issue of concurrent jurisdiction. The applicability of protective and passive personality jurisdiction could precede the former provided the jurisdictions of territoriality or active personality are inadequate, incompetent or lack of motivation to combat crimes, which harm other jurisdictions.
Findings
The developmental trajectory and contemporary connotation of major jurisdiction principles suggests that the legitimacy of the mainland’s exercise of passive personality jurisdiction over Taiwan criminal suspects lies in the urgent need to recover mainland victims’ significant property loss, the incompetence of Taiwan in detecting and prosecuting telecom fraud crimes committed by Taiwanese residents and targeting mainland victims and that the mainland has guaranteed the Taiwan side’s right to be timely informed and fully participate in its exercise of criminal jurisdiction over crimes involving Taiwan suspects.
Originality/value
Current literature on jurisdiction doctrines mainly uses a historical or descriptive approach to reveal the attitudes of different countries toward jurisdiction principles, which helps little in resolving the issue of concurrent jurisdiction over cross-border crimes in an era of globalization. This paper uses an interpretative approach, reinterprets the contemporary connotation of different jurisdiction principles and redefines the criteria for determining their prioritization in the context of the specificities of a case. It is expected to update the academic literature for resolving concurrent jurisdiction, fill the legal vacuum for combating cross-border crimes created by rigid compliance with territorial jurisdiction, and meanwhile relieve concerns about abuse of extraterritorial jurisdiction as it provides concrete standards for weighting the applicability of jurisdiction principles.
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Shaolong Sun, Fuxin Jiang, Gengzhong Feng, Shouyang Wang and Chengyuan Zhang
The purpose of this study is to provide better service to hotel customers during the COVID-19 era. Specifically, this study focuses on understanding the changes in hotel customer…
Abstract
Purpose
The purpose of this study is to provide better service to hotel customers during the COVID-19 era. Specifically, this study focuses on understanding the changes in hotel customer satisfaction during the epidemic and formulating effective marketing strategies to satisfy and attract guests.
Design/methodology/approach
As the first victim of the COVID-19 virus, China’s hotel industry has been profoundly affected and customer satisfaction and needs have also changed. Taking 105,635 hotel reviews obtained from Tripadvisor.com in Beijing and Shanghai as samples, this study explores the changes in consumer satisfaction by using text-mining methods.
Findings
The results suggest that there are significant differences in overall ratings, spatial distribution and ratings of different traveller types before and after the epidemic. Generally, customers have higher “tolerance” and are more inclined to give higher ratings and pay more attention to hotel prevention and control measures to reduce health risks after the COVID-19.
Research limitations/implications
This paper proves the changes in customer satisfaction before and after the COVID-19 at the theoretical level and reveals the changes in customer attention through the topic model and provides a basis for guiding hotel managers to reduce the impact of the COVID-19 crisis.
Practical implications
Empirical findings would provide useful insights into tourism management and improve hotel service quality during the COVID-19 epidemic era.
Originality/value
This research explores the hotel customer satisfaction in the field of hotel management before COVID-19 and after COVID-19, by using text mining to analyse mandarin online reviews. The results of this study will suggest that the hotel industry should continuously adjust its products and services based on the effective information obtained from customer reviews, so as to realize the activation and revitalization of the hotel industry in the epidemic era.
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Peter Malkin and Meletios Pagonis
The purpose of this paper is to describe the necessity for the use of fully superconducting electrical power systems (SEPS) in future hybrid electric aircraft which facilitates…
Abstract
Purpose
The purpose of this paper is to describe the necessity for the use of fully superconducting electrical power systems (SEPS) in future hybrid electric aircraft which facilitates the use of a distributed propulsion system.
Design/methodology/approach
The paper looks at the overall design of the electric power systems for these applications and compares the design process of a more conventional power network with a fully superconducting one. The design issues and solutions in each case are then described.
Findings
The paper concludes that SEPS will give many advantages to the aircraft design and operation.
Practical implications
Significant efforts needs to be oriented towards the development of fully SEPS and dedicated facilities are required for reliable experimental data that will allow the modelling of these systems.
Originality/value
The requirement for more experimental work has not yet been considered by the Industry, as it is a general belief that these networks will behave similar to the conventional ones.
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XiaoXi Wu, Jinlian Shi and Haitao Xiong
This paper aims to analyze the research highlights, evolutionary process and future research directions in the field of tourism forecasting.
Abstract
Purpose
This paper aims to analyze the research highlights, evolutionary process and future research directions in the field of tourism forecasting.
Design/methodology/approach
This study used CiteSpace to conduct a bibliometric analysis of 1,213 tourism forecasting articles.
Findings
The results show that tourism forecasting research has experienced three stages. The institutional collaboration includes transnational collaboration and domestic institutional collaboration. Collaboration between countries still needs to be strengthened. The authors’ collaboration is mainly based on on-campus collaboration. Articles with high co-citation are primarily published in core tourism journals and other relevant publications. The research content mainly pertains to tourism demand, revenue management, hotel demand and tourist volumes. Ex ante forecasting during the COVID-19 pandemic has broadened existing tourism forecasting research. The future forecasting research focuses on the rational use of big data, improving the accuracy of models and enhancing the credibility of forecasting results.
Originality/value
This paper uses CiteSpace to analyze tourism forecasting articles to obtain future research trends, which supplements existing research and provides directions for future research.
意图
本文旨在分析旅游预测领域的研究重点、演化过程和未来的研究方向。
设计/理论/方法
本研究使用 CiteSpace 软件对 1213 篇旅游预测文章进行了文 献计量学分析。
结果
结果表明, 旅游预测研究经历三个阶段。机构合作包含国际机构合作和 国内机构合作, 需要持续加强国家之间的合作, 作者之间的合作多以校内合作为 主。高引用文章不仅发表在旅游领域的核心期刊还发表在其他专业的核心期刊上。 旅游预测研究的主要内容为旅游需求、收入管理、酒店需求和游客量。新冠疫情 期间的事前预测拓宽了现有的旅游预测研究。未来预测的研究重点在于合理利用 大数据, 提高模型的准确定以及提高预测结果的可信度。
创意/价值
本文使用 CiteSpace 分析旅游预测文章得到未来研究趋势, 既是对 现有研究的补充, 又为今后的研究提供方向。
Objetivo
Este artículo pretende analizar los aspectos más destacados de la investigación, el proceso evolutivo y las futuras orientaciones de la investigación en el campo de la previsión turística.
Diseño/metodología/enfoque
Este estudio utilizó CiteSpace para realizar un análisis bibliométrico de 1213 artículos sobre previsión turística.
Resultados
Los resultados muestran que la investigación sobre previsión turística ha experimentado tres etapas. La colaboración institucional incluye la colaboración transnacional y la colaboración institucional nacional. La colaboración entre países aún debe reforzarse. La colaboración entre autores se basa principalmente en la colaboración dentro del campus. Los artículos con una alta cocitación se publican principalmente en las principales revistas de turismo y en otras publicaciones relevantes. El contenido de la investigación se refiere principalmente a la demanda turística, el revenue management, la demanda hotelera y los volúmenes turísticos. La previsión previa y durante la pandemia de la COVID-19 ha ampliado la investigación existente sobre previsión turística. La futura investigación sobre previsiones se centra en el uso racional de los big data, la mejora de la precisión de los modelos y el aumento de la credibilidad de los resultados de las previsiones.
Originalidad/valor
Este artículo utiliza CiteSpace para analizar artículos de previsión turística con el fin de obtener futuras tendencias de investigación, lo que complementa la investigación existente y proporciona orientaciones para futuras investigaciones.
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Liang Wan, Biao Luo, Tieshan Li, Shanyong Wang and Liang Liang
– This paper aims to investigate the relation between technological innovation modes and their impact on eco-efficiency of industrial enterprises in China.
Abstract
Purpose
This paper aims to investigate the relation between technological innovation modes and their impact on eco-efficiency of industrial enterprises in China.
Design/methodology/approach
This paper first constructs a model to evaluate and measure the eco-efficiency of industrial enterprises in China from 2006 to 2010. Second, this paper compares the role of technological innovation modes – specifically, domestic independent innovation, foreign technology import and domestic technology transfer – in improving eco-efficiency of industrial enterprises in the Eastern, Central and Western regions of China by logarithmic regression.
Findings
The study finds that domestic independent innovation has a positive significant influence in improving eco-efficiency of industrial enterprises in the Eastern region; domestic technology transfer has a positive significant role in the Central region; and foreign technology import and domestic technology transfer positively affect the Western region.
Originality/value
This paper is the first to identify the role of technological innovation modes in improving eco-efficiency. The findings can help enterprises in the three regions adopt the most effective technological innovation mode. In addition, the results provide valuable insights into policy development to improve China’s overall eco-efficiency and to balance economic and industrial development among the three regions.
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Robert Sitar, Žarko Janić and Željko Štih
– The purpose of the paper is to compare losses and temperatures in power transformer tanks for different high current lead arrangements.
Abstract
Purpose
The purpose of the paper is to compare losses and temperatures in power transformer tanks for different high current lead arrangements.
Design/methodology/approach
3D computational tools MagNet and ThermNet based on the finite element method are used to calculate magnetic field distribution in 3D models of power transformers. Eddy current losses in conducting metal parts are induced by the stray magnetic field of transformer windings and high current leads. From loss distribution and appropriate cooling condition temperature values are calculated.
Findings
From calculation results it is possible to understand advantages and disadvantages of different lead arrangements. The analysis is finalized with a short presentation of the influence of magnetic shielding height on temperature and loss values.
Originality/value
Results give transformer designer clearer understanding of precautions that should be taken for avoiding high temperatures on the tank wall of a transformer.