Jing Xia, Siqi Zhu, XinYuan He, Junfu Shen, XiaoPan Li, YiYun Kong and Chun Yao
This paper aims to explore how thermal activation enhances the oxidation complexation of the titanium alloy, aiming to enhance surface quality and processing efficiency.
Abstract
Purpose
This paper aims to explore how thermal activation enhances the oxidation complexation of the titanium alloy, aiming to enhance surface quality and processing efficiency.
Design/methodology/approach
The titanium alloys were chemically mechanically polished under various temperatures. The removal rate and surface roughness were characterized using a three-dimensional topography tester. The surface composition, content and valence state were characterized by X-ray photoelectron spectroscopy. The abrasion performance of the surface reaction layers was conducted using a friction wear testing machine.
Findings
The thermal activation temperature can enhance the chemical-mechanical polishing effect of titanium alloy. The thermal activation temperature can enhance the oxidation complexation synergistic effect of K2S2O8 and KF on titanium alloy, thereby improving the polishing effect. With the increase in temperature, the wear resistance of titanium alloy decreases after oxidation corrosion, making it more susceptible to removal through friction. By promoting the oxidation and corrosion of K2S2O8 and KF on the titanium alloy, higher temperatures can facilitate the formation of easily removable film layers on the surface, thereby enhancing the polishing effect.
Practical implications
This research contributes to enriching the theoretical framework of precision machining of titanium alloy and enhancing surface quality and machining efficiency.
Originality/value
With this statement, the authors hereby certify that the manuscript is the result of their own effort and ability. They have indicated all quotes, citations and references. Furthermore, the authors have not submitted any essay, paper or thesis with similar content elsewhere. No conflict of interest exists in the submission of this manuscript.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-05-2024-0167/
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Yang Xia, Yiyun Qiu and Ahmed U. Zafar
Many FDI studies focus on the advantages that businesses can gain through internationalization and internalization. More recent research has indicated that such traditional…
Abstract
Many FDI studies focus on the advantages that businesses can gain through internationalization and internalization. More recent research has indicated that such traditional theories or perspectives may not sufficiently explain the subsequent success or failure of a firm’s operation in a foreign country, because the advantages gained through FDIs could be greatly affected by their strategic management in the host country environment. This study focused on the issue of a firm’s resources on its subsidiary’s competitiveness in a foreign country. A survey was undertaken in China. All companies participating in the study were small and medium‐sized Singapore‐China joint ventures and Singaporean wholly owned enterprises in China. The findings indicated that the variance in a firm’s performance in a foreign country can be largely explained by the six dimensions of firm resources: (1) technological resources, (2) owner/top manager’s managerial skills and capabilities, (3) employee’s Guanxi skills, (4) employee’s professional/technical knowledge, (5) the firm’s internal relationships and, (6) the firm’s external relationships. Among these six dimensions, employees’ professional knowledge and Guanxi skills, as well as a firm’s internal and external relationships, are significant predictors of Singaporean SMEs’ success in China.
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Yi Wu, Tianxue Long, Jing Huang, Yiyun Zhang, Qi Zhang, Jiaxin Zhang and Mingzi Li
This study aims to synthesize the existing serious games designed to promote mental health in adolescents with chronic illnesses.
Abstract
Purpose
This study aims to synthesize the existing serious games designed to promote mental health in adolescents with chronic illnesses.
Design/methodology/approach
This study conducted a review following the guidelines of Joanna Briggs Institute and Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews. Searches were conducted in databases PubMed, Scopus, Web of Science, Cochrane Library, cumulative index to nursing and allied health literature, PsycINFO, China national knowledge infrastructure Wanfang, VIP Database for Chinese Technical Periodicals and SinoMed from inception to February 12, 2023.
Findings
A total of 14 studies (describing 14 serious games) for improving the mental health of adolescents with chronic diseases were included. Of all the included games, 12 were not described as adopting any theoretical framework or model. The main diseases applicable to serious games are cancer, type 1 diabetes and autism spectrum disorder. For interventional studies, more than half of the study types were feasibility or pilot trials. Furthermore, the dosage of serious games also differs in each experiment. For the game elements, most game elements were in the category “reward and punishment features” (n = 50) and last was “social features” (n = 4).
Originality/value
Adolescence is a critical period in a person’s physical and mental development throughout life. Diagnosed with chronic diseases during this period will cause great trauma to the adolescents and their families. Serious game interventions have been developed and applied to promote the psychological health field of healthy adolescents. To the best of the authors’ knowledge, this study is the first to scope review the serious game of promoting mental health in the population of adolescents with chronically ill. At the same time, the current study also extracted and qualitatively analyzed the elements of the serious game.