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1 – 5 of 5Hongwei Wang, Chao Li, Wei Liang, Di Wang and Linhu Yao
In response to the navigation challenges faced by coal mine tunnel inspection robots in semistructured underground intersection environments, many current studies rely on…
Abstract
Purpose
In response to the navigation challenges faced by coal mine tunnel inspection robots in semistructured underground intersection environments, many current studies rely on structured map-based planning algorithms and trajectory tracking techniques. However, this approach is highly dependent on the accuracy of the global map, which can lead to deviations from the predetermined route or collisions with obstacles. To improve the environmental adaptability and navigation precision of the robot, this paper aims to propose an adaptive navigation system based on a two-dimensional (2D) LiDAR.
Design/methodology/approach
Leveraging the geometric features of coal mine tunnel environments, the clustering and fitting algorithms are used to construct a geometric model within the navigation system. This not only reduces the complexity of the navigation system but also optimizes local positioning. By constructing a local potential field, there is no need for path-fitting planning, thus enhancing the robot’s adaptability in intersection environments. The feasibility of the algorithm principles is validated through MATLAB and robot operating system simulations in this paper.
Findings
The experiments demonstrate that this method enables autonomous driving and optimized positioning capabilities in harsh environments, with high real-time performance and environmental adaptability, achieving a positioning error rate of less than 3%.
Originality/value
This paper presents an adaptive navigation system for a coal mine tunnel inspection robot using a 2D LiDAR sensor. The system improves robot attitude estimation and motion control accuracy to ensure safe and reliable navigation, especially at tunnel intersections.
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Sameh M. Saad, Ramin Bahadori, Chandan Bhovar and Hongwei Zhang
This paper aims to analyse the current state of research to identify the link between Lean Manufacturing and Industry 4.0 (I4.0) technologies to map out different research themes…
Abstract
Purpose
This paper aims to analyse the current state of research to identify the link between Lean Manufacturing and Industry 4.0 (I4.0) technologies to map out different research themes, to uncover research gaps and propose key recommendations for future research, including lessons to be learnt from the integration of lean and I4.0.
Design/methodology/approach
A systematic literature review (SLR) is conducted to thematically analyse and synthesise existing literature on Lean Manufacturing–I4.0 integration. The review analysed 60 papers in peer-reviewed journals.
Findings
In total, five main research themes were identified, and a thematic map was created to explore the following: the relationship between Lean Manufacturing and I4.0; Lean Manufacturing and I4.0 implication on performance; Lean Manufacturing and I4.0 framework; Lean Manufacturing and I4.0 integration with other methodologies; and application of I4.0 technologies in Lean Manufacturing. Furthermore, various gaps in the literature were identified, and key recommendations for future directions were proposed.
Research limitations/implications
The integration of Lean Manufacturing and I4.0 will eventually bring many benefits and offers superior and long-term competitive advantages. This research reveals the need for more analysis to thoroughly examine how this can be achieved in real life and promote operational changes that ensure enterprises run more sustainably.
Originality/value
The development of Lean Manufacturing and I4.0 integration is still in its infancy, with most articles in this field published in the past two years. The five main research themes identified through thematic synthesis are provided in the original contribution. This provides scholars better insight into the existing literature related to Lean Manufacturing and I4.0, further contributing to defining clear topics for future research opportunities. It also has important implications for industrialists, who can develop more profound and richer knowledge than Lean and I4.0, which would, in turn, help them develop more effective deployment strategies and have a positive commercial impact.
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Peng Xie, Hongwei Du, Jiming Wu and Ting Chen
In prior literature, online endorsement system allowing the users to “like” or “dislike” shared information is found very useful in information filtering and trust elicitation in…
Abstract
Purpose
In prior literature, online endorsement system allowing the users to “like” or “dislike” shared information is found very useful in information filtering and trust elicitation in most social networks. This paper shows that such systems could fail in the context of investment communities due to several psychological biases.
Design/methodology/approach
This study develops a series of regression analyses to model the “like”/“dislike” voting process and whether or not such endorsement distinguishes between valuable information and noise. Trading simulations are also used to validate the practical implications of the findings.
Findings
The main findings of this research are twofold: (1) in the context of investment communities, online endorsement system fails to signify value-relevant information and (2) bullish information and “wisdom over the past event” information receive more “likes” and fewer “dislikes” on average, but they underperform in stock market price discovery.
Originality/value
This study demonstrates that biased endorsement may lead to the failure of the online endorsement system as information gatekeeper in investment communities. Two underlying mechanisms are proposed and tested. This study opens up new research opportunities to investigate the causes of biased endorsement in online environment and motivates the development of alternative information filtering systems.
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Ngatindriatun Ngatindriatun, Muhammad Alfarizi and Tika Widiastuti
This study aims to analyze the influence of the dimensions of Sharia hospital service standards, religiosity commitment and trust of Muslim patients on attitudes and satisfaction…
Abstract
Purpose
This study aims to analyze the influence of the dimensions of Sharia hospital service standards, religiosity commitment and trust of Muslim patients on attitudes and satisfaction, as well as the implications of loyalty.
Design/methodology/approach
This study was carried out by analyzing data obtained from a survey with purposive sampling techniques with 425 patients in an Indonesian-certified Sharia hospital and analyzing it using partial least squares structural equation modeling software to test the path modeling and the relationship between the instruments.
Findings
This study shows that hospital amenities, doctor’s services, nurses’ services, health-care technicalities and hospital environmental and administrative behavior affect patient satisfaction. In addition, religiosity and trust in encouraging patient attitudes determine patient satisfaction. High satisfaction points will increase loyalty to Sharia hospitals.
Research limitations/implications
This study encourages managers to maximize the quality of humanist Islamic medical services and the infrastructure of comfortable facilities. In addition, hospitals need to improve their holistic atmosphere, technical services and administrative behavior so that they can become essential value for hospital marketing – the development of competence and ethical behavior of health workers through various training programs internally and externally.
Originality/value
This study presents the determination of Sharia hospital service standards accompanied by a commitment to religiosity and trust as a psychological perspective of Muslim patients on attitudes and satisfaction and its implications on the brand loyalty of Indonesian Sharia hospitals that have been officially certified.
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The increasingly active data practice in academic environments makes investigating college faculty users’ potential needs for library data services (LDS) essential. Guided by a…
Abstract
Purpose
The increasingly active data practice in academic environments makes investigating college faculty users’ potential needs for library data services (LDS) essential. Guided by a conceptual framework rooted in the data lifecycle and the extended technology acceptance model, this study aims to investigate the relationship between faculty’s data engagement (DE) and their attitudes toward multiaspect LDS.
Design/methodology/approach
An online survey at a master’s college was conducted to collect data regarding faculty data practice, potential needs for data services (DS) and attitudes toward multiaspect LDS. Based on 139 complete and valid responses, the study built three conceptual models to demonstrate faculty users’ potential acceptance of LDS for research and teaching.
Findings
Participants’ research and teaching-related DE and background factors directly or indirectly affect their attitudes toward general DS, an institutional data repository if available and repository-based data curation.
Originality/value
The study contributes to DS and librarianship research by offering three conceptual models to explore LDS’ holistic support for faculty research and teaching. Moreover, the study provides insights into faculty’s job-related DE factors and calls for future research on effective DS in more college communities.
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