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1 – 10 of 938Kaiyuan Wu, Hao Huang, Ziwei Chen, Min Zeng and Tong Yin
This paper aims to overcome the limitations of low efficiency, low power density and strong electromagnetic interference (EMI) of the existing pulsed melt inert gas (MIG) welding…
Abstract
Purpose
This paper aims to overcome the limitations of low efficiency, low power density and strong electromagnetic interference (EMI) of the existing pulsed melt inert gas (MIG) welding power supply. So a novel and simplified implementation of digital high-power pulsed MIG welding power supply with LLC resonant converter is proposed in this work.
Design/methodology/approach
A simple parallel full-bridge LLC resonant converter structure is used to design the digital power supply with high welding current, low arc voltage, high open-circuit voltage and a wide range of arc loads, by effectively exploiting the variable load and high-power applications of LLC resonant converter.
Findings
The efficiency of each converter can reach up to 92.3%, under the rated operating condition. Notably, with proposed scheme, a short-circuit current mutation of 300 A can stabilize at 60 A within 8 ms. Furthermore, the pulsed MIG welding test shows that a stable welding process with 280 A peak current can be realized and a well-formed weld bead can be obtained, thereby verifying the feasibility of LLC resonant converter for pulsed MIG welding power supply.
Originality/value
The high efficiency, high power density and weak EMI of LLC resonant converter are conducive to the further optimization of pulsed MIG welding power supply. Consequently, a high performance welding power supply is implemented by taking adequate advantages of LLC resonant converter, which can provide equipment support for exploring better pulsed MIG welding processes.
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Furkan Arasli, Souji Gopalakrishna Pillai and Tong Yin
This chapter introduces the specifics of spirituality-centric management practices in service and operation focused industries. Strategic management practices are often challenged…
Abstract
This chapter introduces the specifics of spirituality-centric management practices in service and operation focused industries. Strategic management practices are often challenged by the human factor of businesses. Consequently, businesses often waver with the fulfillment of their strategic goals and face harmful repercussions. Subsequently, strategic leadership plays a crucial role in the advancement of incorporating spirituality in the workplace and cultivating a perception of the spiritual domain at the individual, team, and organizational levels. To succeed, organizations need to overcome the challenges pertaining their members' retainment and wellness. This is because members often act on their emotional, moral, and ethical concerns that are pillared by their spirituality-centric views on colleagues and management. As the overarching term, workplace spirituality has been linked with organizational learning, togetherness, sense of nurturement, and interpersonal fulfillment with tasks and often coincidences with managerial application of strategic approaches. For the synthesis of service focused businesses, authors exemplify studies within tourism and hospitality industries.
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Tong Yin and Audhesh K. Paswan
This research paper aims to examine the relationships among the factors associated with changing shopping environment, consumer knowledge and reference price.
Abstract
Purpose
This research paper aims to examine the relationships among the factors associated with changing shopping environment, consumer knowledge and reference price.
Design/methodology/ approach
A self administered online survey was used to collect data (final sample size was 265). After checking for non‐response bias, data was factor analyzed and checked for reliability and validity. Hypotheses were tested using structural Equation Modeling procedure.
Findings
Product search opportunity is associated with product and price knowledge. Price volatility is negatively associated with internal reference price. Further, consumers' price comparison propensity and price knowledge positively influence external reference price. Finally, price volatility has a significant negative influence on consumer knowledge and IRP orientation.
Research limitations/implications
The sampling frame is a major limitation, in addition to not including variables such as product type and other measures of price volatility. Future research should expand the sampling frame and include other variables as well as other aspects of price volatility.
Practical implications
These findings provide insights into advertised price claims in the information rich internet age. Managers also benefit from the finding that the internet, particularly price comparison, influences external reference price. Consequently, managers must be cautious with their advertised price claims and not exaggerate the value of offerings or cost savings too much.
Originality/value
This topic is important because retailers extensively use reference price or price comparison to increase consumers' perception of the product value. However, not much research attention has been given to this topic.
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This paper examines the relationship between traditional timber frame structure and the diasporic identity of the Southern Fujianese Chinese community in West Malaysia. It…
Abstract
Purpose
This paper examines the relationship between traditional timber frame structure and the diasporic identity of the Southern Fujianese Chinese community in West Malaysia. It analyses the cultural semiotics of Southern Fujianese traditional Chinese temple timber frame structure architectural language. This study addresses the under-examined domain of Chinese cultural identity representation through the architecture of traditional Chinese temples in Malaysia. It seeks to understand its underlying structure and process involved in revealing its disposition within the cultural phenomena from the perspective of Chinese cultural semiotics.
Design/methodology/approach
Selected Southern Fujianese traditional Chinese temples in West Malaysia built between the 18th to the 19th century that retain the traditional timber frame structure were investigated through field survey and focused publication review. Historical interpretive analysis and typological analysis supplement the cultural semiotics analysis to assess the timber frame structure attributes concerning architectural language expressions.
Findings
Findings reveal that the architectural language signifiers of the structural disposition of the timber framework and its corresponding formal articulation establish a clear statement of the Southern Fujian Chinese cultural identity.
Originality/value
The evaluation of the cultural identity signifiers helps to understand the underlying structure and process of the Chinese cultural semiotics in architecture. Results of this research substantiate the significance of timber frame structure in preserving the architectural heritage of the Southern Fujianese traditional Chinese temples. They provide important references for conservation and cultural studies of such building typology.
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Saskia M. van Ruth, Lintianxiang Chen, Anika Dick and Sara W. Erasmusa
This chapter presents a typology, a comprehensive overview and a deconstruction of food counterfeits. In this chapter, common targets, defined by type of commodity, supply chain…
Abstract
This chapter presents a typology, a comprehensive overview and a deconstruction of food counterfeits. In this chapter, common targets, defined by type of commodity, supply chain (node) and location, are identified based on incident reports and vulnerability assessments in global food supply chains. As a second step, the effects of counterfeiting on brand owners, consumers and governments are detailed, which is followed by the characterisation of the groups of buyers and suppliers. To comprehend the counterfeiting process and its most important factors in greater detail, counterfeiting is disassembled into and analysed for existing motivational drivers, opportunities and control measures. Lastly, various strategies are proposed to deter counterfeiting and disrupt these practices.
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Liyun Zeng, Rita Yi Man Li, Huiling Zeng and Lingxi Song
Global climate change speeds up ice melting and increases flooding incidents. China launched a sponge city policy as a holistic nature-based solution combined with urban planning…
Abstract
Purpose
Global climate change speeds up ice melting and increases flooding incidents. China launched a sponge city policy as a holistic nature-based solution combined with urban planning and development to address flooding due to climate change. Using Weibo analytics, this paper aims to study public perceptions of sponge city.
Design/methodology/approach
This study collected 53,586 sponge city contents from Sina Weibo via Python. Various artificial intelligence tools, such as CX Data Science of Simply Sentiment, KH Coder and Tableau, were applied in the study.
Findings
76.8% of public opinion on sponge city were positive, confirming its positive contribution to flooding management and city branding. 17 out of 31 pilot sponge cities recorded the largest number of sponge cities related posts. Other cities with more Weibo posts suffered from rainwater and flooding hazards, such as Xi'an and Zhengzhou.
Originality/value
To the best of the authors’ knowledge, this study is the first to explore the public perception of sponge city in Sina Weibo.
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Xiao Bai, Yan Xu and Sifeng Liu
The purpose of this paper is to establish the index system of leading industries in Kashgar urban agglomeration, and use the multi-attribute weighted intelligent grey target…
Abstract
Purpose
The purpose of this paper is to establish the index system of leading industries in Kashgar urban agglomeration, and use the multi-attribute weighted intelligent grey target decision-making evaluation model to measure the comprehensive effect, so as to select the leading industries of Kashgar urban agglomeration.
Design/methodology/approach
First, 18 industries in Kashgar urban agglomerations are taken as objectives, and four indexes, namely, demand income elasticity index, growth rate index, labor productivity growth rate index and contribution rate of output value, are selected to construct an evaluation system for leading industry selection in Kashgar urban agglomerations. Then, grey incidence degree method is used to determine the decision-making power of each decision-making objective. Finally, multi-attribute weighted intelligent grey target decision-making evaluation model is used to measure the comprehensive effect of the objective system of leading industries in Kashgar urban agglomerations.
Findings
It can be seen that the multi-attribute weighted intelligent grey target decision-making evaluation model is more convenient to be used in selecting regional leading industries, and the results are accurate and feasible. Based on the calculation results and the actual economic development requirements of Kashgar urban agglomeration, the leading industries of Kashgar urban agglomeration can be determined as: wood processing, furniture, paper making and printing; wholesale and retail; construction; equipment manufacturing; transportation, storage and postal services.
Originality/value
First, it is a new method in selecting regional leading industry by using the multi-attribute weighted intelligent grey target decision-making evaluation model. Second, since there is relatively little research on Kashgar urban agglomeration, especially on leading industries in Kashgar urban agglomeration. The research in this paper can not only enrich the research on selecting leading industries in urban agglomeration but also provide scientific reference for relevant government agencies to formulate economic development plans.
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Guotao Zhang, Weijie Cai, Xiaoyi Wang, Junpeng Xu, Yanguo Yin and Xicheng Wei
The purpose of this paper is to put forward the lubrication model of oil bearing and enrich the design theory under the condition of mixed lubrication.
Abstract
Purpose
The purpose of this paper is to put forward the lubrication model of oil bearing and enrich the design theory under the condition of mixed lubrication.
Design/methodology/approach
A mixed lubrication model of bilayer porous bearing is established. The effects of the working conditions on the lubrication performance and seepage behavior were analyzed.
Findings
Results show that the oil film pressure mainly occurs in the bearing convergence zone and contact pressure mainly occurs near the minimum film thickness. The oil infiltrates into the porous matrix in the contact area and precipitates out to the friction surface at the inlet of the contact area. The oil seepage velocity and dynamic pressure effect at the friction interface can be improved by reasonably matching the load and speed. With the decrease of the external load or increase of the rotating speed, the lubrication performance becomes well.
Originality/value
This study provides a reference for the design and application of oil bearing under harsh working conditions.
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Mehmet Fatih Burak and Polathan Küsbeci
Considering both the current opportunities of the Internet of things (IoT) and aviation, as well as the potential opportunities they may offer for the future, it is understood…
Abstract
Purpose
Considering both the current opportunities of the Internet of things (IoT) and aviation, as well as the potential opportunities they may offer for the future, it is understood that they are among the important issues that need to be examined in the literature. This study aims to provide an idea by conducting bibliometric and visualization analyses of the current trends and development opportunities of IoT and aviation.
Design/methodology/approach
In this study, descriptive and bibliometric analyses within the framework of co-author, co-citation, bibliographic coupling, and keyword co-occurrence analysis were carried out for publications found to be published between 2007 and 2023 in the Web of Science (WoS) database related to IoT and aviation. VOSviewer (ver. 1.6.18) program and the Biblioshiny application were used to create bibliometric networks and provide visualization.
Findings
As a result of some descriptive and visualization analyses, the current trend of publications on IoT and aviation and future publication opportunities has been revealed. It has been understood that the subject of IoT and aviation is one of the subjects whose number of publications has increased in recent years and has not yet fully matured in terms of the number of publications and has the potential to make new publications.
Originality/value
In this study, bibliometric analysis of IoT and aviation, which could not be found examined before in the literature, and the creation of existing bibliometric networks by visualizing were carried out.
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