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1 – 7 of 7Xiaodong Zhang, Xiaohua Jie, Liuyan Zhang, Song Luo and Qiongbin Zheng
This paper aims to discuss that a WC/Co-Cr alloy coating was applied to the surface of H13 steel by laser cladding.
Abstract
Purpose
This paper aims to discuss that a WC/Co-Cr alloy coating was applied to the surface of H13 steel by laser cladding.
Design/methodology/approach
The oxidation behavior of the WC/Co-Cr alloy coating at 600°C was investigated by comparing it with the performance of the steel substrate to better understand the thermal stability of H13 steel.
Findings
The results showed that the WC/Co-Cr alloy coating exhibited better high-temperature oxidation resistance and thermal stability than did uncoated H13 steel. The coated H13 steel had a lower mass gain rate and higher microhardness than did the substrate after different oxidation times.
Originality/value
The WC/Co-Cr alloy coating was composed of e-Co, CW3, Co6W6C, Cr23C6 and Cr7C3; this mixture offered good thermal stability and better high-temperature oxidation resistance.
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Yuanyuan Wu, Liuyan Chen, Eric W.T. Ngai and Pengkun Wu
The objective of this study is to investigate the interaction effect between incentive type (financial and compassionate incentives) and the ethicality of merchant strategy on…
Abstract
Purpose
The objective of this study is to investigate the interaction effect between incentive type (financial and compassionate incentives) and the ethicality of merchant strategy on consumer willingness to post positive reviews, while also examining potential variations in consumer responses based on consumption experience, shopping frequency and social class.
Design/methodology/approach
Building upon construal level theory, we hypothesized the moderating influence of the ethicality of merchant strategy and examined the three-way interaction among consumers’ demographic characteristics (i.e. consumption experience, shopping frequency and social class), incentive type and the ethicality of merchant strategy. To empirically test our hypotheses, we conducted four experiments and employed ANOVA for data analysis.
Findings
The ethicality of merchant strategies moderates the association between incentive type and consumer willingness to post positive reviews, with compassionate incentives eliciting more pronounced moral judgments toward merchant strategies compared to financial incentives. The moderating effect of the ethicality of merchant strategy on the relationship between incentive type and consumer willingness to post positive reviews is particularly strong among consumers who have favorable consumption experiences, engage in frequent shopping and belong to lower social classes.
Originality/value
This study contributes to the existing literature on online reviews by examining the impact of compassionate incentives on consumer review behaviors, analyzing the ethicality of merchant strategies within the realm of online reviews and investigating variations in consumer responses to merchant strategies regarding consumption experience, shopping frequency and social class.
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The purpose of this paper is to clarify the growth behavior of fatigue cracks on bionic coupling surface of vermicular cast iron.
Abstract
Purpose
The purpose of this paper is to clarify the growth behavior of fatigue cracks on bionic coupling surface of vermicular cast iron.
Design/methodology/approach
The thermal fatigue cyclic experiments were carried out on the bionic specimens processed by laser bionic treatment, in which the thermal fatigue was generated by heating at 600°C ± 5°C and cooling at 25°C ± 5°C. The thermal fatigue cracks of bionic units were analyzed using fractal theory. The relation between fractal dimensions of thermal fatigue cracks and thermal fatigue cycles was discussed.
Findings
The results show that the fractal dimensions can better characterize the fatigue crack growth behavior on bionic coupling surface of vermicular cast iron.
Originality/value
The fractal theory is first used to discuss the growth behavior of fatigue cracks on bionic coupling surface of vermicular cast iron, which is processed by laser bionic treatment.
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This paper proposes a systematic method to manage students to use limited seat resources in Chinese university libraries, with the aid of mobile phone app, at the same time, its…
Abstract
Purpose
This paper proposes a systematic method to manage students to use limited seat resources in Chinese university libraries, with the aid of mobile phone app, at the same time, its use is being investigated.
Design/methodology/approach
Use mixed research methods, quantitative and qualitative research. Through observation, questionnaire and interview to achieve research purpose. The survey was conducted in the library of Nanjing agricultural university.
Findings
The result shows system can offer convenient, accurate, more personalized, mobility service to each user. Actual average seat usage rate is over 51.7% in a day, most of users are satisfied with the seat management system, students' satisfaction degree are 94.8%. It is also an extension of mobile phone library service.
Originality/value
Seat management system innovate traditional people-oriented service mode of study room into smart, readers can browse usage information of seats anytime and anywhere, get what they want, service become fast and convenient. In period of COVID-19, the seat system also plays an important role, it is easy for librarians to control the number of students to enter, the trajectory of readers in the library can be tracked and the possible epidemic risk can be accurately prevented and controlled.
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Abstract
Purpose
The purpose of this paper is to provide theoretical guidance and an experimental basis for a smart anti-corrosion coating of halloysite nanocontainers loaded with benzotriazole (BTA) inhibitors on copper in a marine corrosion environment.
Design/methodology/approach
In the present study, the smart anti-corrosion coatings of halloysite nanocontainers loaded inhibitors on copper were synthesized by adding BTA inside the halloysite nanocontainers. Then, the halloysite carrier’s surface topography and composition in the halloysite were observed using scanning electron microscopy. After the successful synthesis of the coating, the inhibitor’s physical and chemical properties, as well as the mass change in halloysite, were evaluated in terms of temperature fluctuation and time using thermal gravity analysis (TGA). Finally, electrochemical impedance spectroscopy was used to check the pH selectivity for the self-releasing of BTA out of the nanocontainers.
Findings
The results indicate that the efficiency of the nanotubes was enhanced by calcination at high temperatures. The thermal gravity analysis by TGA shows that halloysite nanoparticles store inhibitors BTA and there are approximately 37.39 Wt.% BTA loaded in each nanocontainer. The release of the preloaded BTA from the halloysite nanocontainers is pH 7 in a 3.5% NaCl solution.
Originality/value
The development of a new environmentally safe coating for corrosion protection of metallic surfaces has attracted great interest in material science over the past few years. At present, halloysite nanotubes (HNTs) have become a research hotspot internationally and are widely used in nanocomposites, catalysis, nanofiltration, drug sustained-release and other fields. However, the application of HNT is limited by its modification methods. As the carrier of metal nanocorrosion inhibitor in the Marine corrosive environment, the modification research of HNT still needs to be further studied and improved so as to expand the practical application of HNT in the Marine corrosive environment. In this paper, the modification of HNTs was investigated and observed. Four different modification schemes were used to observe and compare the structural properties of the nanotubes under different conditions so as to provide a theoretical basis for the further loading of HNTs as corrosion inhibitors.
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Forces of globalization have driven international convergence in corporate governance and accounting considerably over the past few decades. Nevertheless, despite the global…
Abstract
Forces of globalization have driven international convergence in corporate governance and accounting considerably over the past few decades. Nevertheless, despite the global trend, convergence of corporate governance and financial reporting remains a subject of debate. This research monograph critically examines whether China’s convergence with Anglo-American corporate governance principles and the International Financial Reporting Standards (IFRS) is likely to produce the expected outcomes of improving the transparency and comparability of accounting information in Chinese firms. In this chapter, we discuss the motivation for and the significance of the study; describe the issues associated with the adoption of internationally acceptable standards and principles in China; explain the theoretical framework used to inform the study and research methodology; and present the aim and objectives of the monograph.
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The purpose of this paper is to explore the relationship between challenge-hindrance stressors and employees’ career initiative while incorporating the mediating role of positive…
Abstract
Purpose
The purpose of this paper is to explore the relationship between challenge-hindrance stressors and employees’ career initiative while incorporating the mediating role of positive affect and the moderating role of job autonomy.
Design/methodology/approach
Five proposed hypotheses were tested using path analysis with two waves of data collected from 136 part-time MBA students.
Findings
The findings show that challenge stressors indirectly facilitate career initiative, whereas hindrance stressors indirectly inhibit career initiative, both with positive affect as mediators. Job autonomy enhances the direct relationship between positive affect and career initiative, as well as the indirect relationships among challenge/hindrance stressors, positive affect and career initiative.
Originality/value
The study brings a new perspective to understanding why an employee conducts career initiative, thereby widening the scope of the antecedents of career initiative. The study discloses positive affect as the mediator that transmits the opposite effects from challenge-hindrance stressors to career initiative. It also identifies job autonomy as an important boundary condition for positive affect to exert its influence on career initiative, as well as challenge-hindrance stressors that influence career initiative via positive affect.
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