Xiao Wang, Xuan Liang, Bo Wang, Chang-qing Guo, Shan-gui Zhang, Kai Yang, Shi-ya Shao, Yan Sun, Zheng Guo, Xue-yan Yu, Donghai Zhang, Tai-jiang Gui, Wei Lu, Ming-liang Sun and Rui Ding
The purpose of this study is to evaluate the effect of graphene, basalt flakes and their synergy on the corrosion resistance of zinc-rich coatings. As the important heavy-duty…
Abstract
Purpose
The purpose of this study is to evaluate the effect of graphene, basalt flakes and their synergy on the corrosion resistance of zinc-rich coatings. As the important heavy-duty anticorrosion coatings, zinc-rich coatings provided cathodic protection for the substrate. However, to ensure cathodic protection, a large number of zinc powder made the penetration resistance known as the weakness of zinc-rich coatings. Therefore, graphene and basalt flakes were introduced into zinc-rich coatings to coordinate its cathodic protection and shielding performance.
Design/methodology/approach
Three kinds of coatings were prepared; they were graphene modified zinc-rich coatings, basalt flakes modified zinc-rich coatings and graphene-basalt flakes modified zinc-rich coatings. The anticorrosion behavior of painted steel was studied by using the electrochemical impedance spectroscopy (EIS) technique in chloride solutions. The equivalent circuit methods were used for EIS analysis to obtain the electrode process structure of the coated steel system. Simultaneously, the corrosion resistance of the three coatings was evaluated by water resistance test, salt water resistance test and salt spray test.
Findings
The study found that the addition of a small amount of graphene and basalt flakes significantly improved the anticorrosion performance of coatings by enhancing their shielding ability against corrosive media and increasing the resistance of the electrochemical reaction. The modified coatings exhibited higher water resistance, salt water resistance and salt spray resistance. The graphene-basalt flakes modified zinc-rich coatings demonstrated the best anticorrosion effect. The presence of basalt scales and graphene oxide in the coatings significantly reduced the water content and slowed down the water penetration rate in the coatings, thus prolonging the coating life and improving anticorrosion effects. The modification of zinc-rich coatings with graphene and basalt flakes improved the utilization rate of zinc powder and the shielding property of coatings against corrosive media, thus strengthening the protective effect on steel structures and prolonging the service life of anticorrosion coatings.
Originality/value
The significance of developing graphene-basalt flakes modified zinc-rich coatings lies in their potential to offer superior performance in corrosive environments, leading to prolonged service life of metallic structures, reduced maintenance costs and a safer working environment. Furthermore, such coatings can be used in various industrial applications, including bridges, pipelines and offshore structures, among others.
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This paper aims to provide a new perspective in investigating how internal research and development (R&D) and external knowledge acquisition interact regarding their influence on…
Abstract
Purpose
This paper aims to provide a new perspective in investigating how internal research and development (R&D) and external knowledge acquisition interact regarding their influence on innovation performance in an emerging market context. Building on an attention-based view (ABV), it argues that internal R&D and external knowledge acquisition can be substitutes for each other in emerging markets. Its contingency factors are also discussed according to the principles of the ABV.
Design/methodology/approach
The proposed hypotheses were empirically tested using a Tobit model approach. The data used was from the enterprise survey and the follow-up innovation survey conducted by the World Bank in 10 emerging market countries.
Findings
The results indicate that internal R&D and external knowledge acquisition entails a substitute effect among emerging market firms (EMFs). A higher level of manager’s open-mindedness to external knowledge and firm performance and a lower level of firm administrative control help mitigate the substitute effect of internal R&D and external knowledge acquisition. While adequate financial resources may not necessarily mitigate the substitute effect, it is an essential condition for the external knowledge acquisition to play a role in enhancing innovation performance.
Research limitations/implications
The research uses a set of cross-sectional data. A dynamic study will provide a deeper understanding of the long-term effects of innovation investments.
Practical implications
To better use innovation investments, EMFs need to assess their specific conditions and the possible substitute effect of internal R&D and external knowledge acquisition activities.
Originality/value
Previous research discussing the interactive effect of internal R&D and external knowledge acquisition has mostly focused on an absorptive capacity perspective, which represents a firm’s technical ability. This study argues that these investments not only involve in absorbing knowledge technically but also form a challenge for the limited firm resources and can cause cognitive problems in management, especially for EMFs.
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Jianjin Yue, Wenrui Li, Jian Cheng, Hongxing Xiong, Yu Xue, Xiang Deng and Tinghui Zheng
The calculation of buildings’ carbon footprint (CFP) is an important basis for formulating energy-saving and emission-reduction plans for building. As an important building type…
Abstract
Purpose
The calculation of buildings’ carbon footprint (CFP) is an important basis for formulating energy-saving and emission-reduction plans for building. As an important building type, there is currently no model that considers the time factor to accurately calculate the CFP of hospital building throughout their life cycle. This paper aims to establish a CFP calculation model that covers the life cycle of hospital building and considers time factor.
Design/methodology/approach
On the basis of field and literature research, the basic framework is built using dynamic life cycle assessment (DLCA), and the gray prediction model is used to predict the future value. Finally, a CFP model covering the whole life cycle has been constructed and applied to a hospital building in China.
Findings
The results applied to the case show that the CO2 emission in the operation stage of the hospital building is much higher than that in other stages, and the total CO2 emission in the dynamic and static analysis operation stage accounts for 83.66% and 79.03%, respectively; the difference of annual average emission of CO2 reached 28.33%. The research results show that DLCA is more accurate than traditional static life cycle assessment (LCA) when measuring long-term objects such as carbon emissions in the whole life cycle of hospital building.
Originality/value
This research established a carbon emission calculation model that covers the life cycle of hospital building and considered time factor, which enriches the research on carbon emission of hospital building, a special and extensive public building, and dynamically quantifies the resource consumption of hospital building in the life cycle. This paper provided a certain reference for the green design, energy saving, emission reduction and efficient use of hospital building, obviously, the limitation is that this model is only applicable to hospital building.
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Peng Xue, Jie Zheng, Yue Xu, Haiyang Bao and Rui Zhang
This study aims to analyze the transmission characteristics of a long-period grating (LPG) fabricated on plastic optical fibers (POFs) and its refractive index (RI) sensing.
Abstract
Purpose
This study aims to analyze the transmission characteristics of a long-period grating (LPG) fabricated on plastic optical fibers (POFs) and its refractive index (RI) sensing.
Design/methodology/approach
The geometric optic method is used to analyze the factors affecting the transmission characteristics of an LPG on POFs. The RI sensing performances of unbent LPGs and U-bent LPGs fabricated on POFs with different diameters are evaluated experimentally.
Findings
This study shows that the transmission loss caused by LPG strongly depends on the structural parameters of LPG and the environmental RI. For the unbent LPG, the highest RI sensitivity of 1,015%/RI unit (RIU) was obtained in the RI range of 1.33–1.45. For the U-bent LPG without cladding, the highest RI sensitivities of 1,007 and 559%/RIU are obtained in the RI ranges of 1.33–1.40 and 1.40–1.45, respectively.
Originality/value
A geometric optic method is used to analyze the transmission characteristics for an LPG on POFs, and the RI sensing of the LPGs are studied experimentally. The results show the LPG has a good RI sensing performances and is with the features of low-cost, simple structure and easy fabrication.
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Heidi Ross and Jing Lin
We investigate how communities in China use schools to create and reproduce the values, knowledge, and social expectations that engender social capital. We focus on private and…
Abstract
We investigate how communities in China use schools to create and reproduce the values, knowledge, and social expectations that engender social capital. We focus on private and girls’ education, and report on the experiences of four schools between 1995 and 2005. We argue that, beyond schools’ contribution to the skills acquired by individual students, whether they promote the formation of social capital within communities should be a part of our assessment of their effectiveness. Schools as centers of activism can provide communities a forum for formulating their social demands and identities. In this context, social capital formation provides a useful heuristic for reclaiming the language of social justice and considering the human ends of education.
Sociology of sport in China has evolved from being an “exotic” subject to a localized subject over the past 35 years. It is closely associated with social changes, sports policy…
Abstract
Sociology of sport in China has evolved from being an “exotic” subject to a localized subject over the past 35 years. It is closely associated with social changes, sports policy and athletic achievement of China. As a discipline of humanitarian and social sciences of sport, it is taught in virtually all universities with sports majors. There are about 500 scholars specializing in sport sociology in the country. Textbooks written by Chinese and foreign scholars are published. Academic papers on sport sociology are often published in the 15 accredited core sports journals. The most productive authors are from universities and the developed provinces and municipalities. The established research areas of sport sociology are extensive. These include national identity, athlete mobility, Olympic legacy, sport for all, sports industry issues, feminist studies, community sport, sport for the aged and disabled, etc. However, there are few studies with critical analysis and only a few in the areas of sport and religion, sport and race, and deviance in sport in China. Various kinds of financial support at different levels are available in the country. Empirical research is common with literature review, questionnaire, case study, and interview being the most frequently used methods. However, sport sociology is not considered as a major topic but as a research direction and it is not accepted widely by mainstream sociology. The future of sport sociology is promising, but not without challenges.
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Yudan Dou, Wenjuan Hou, Xueya Yan, Xin Jin and Pan Li
Prefabricated construction (PC) is increasingly recognized for its sustainability and is being vigorously promoted worldwide. However, its adoption in developing countries remains…
Abstract
Purpose
Prefabricated construction (PC) is increasingly recognized for its sustainability and is being vigorously promoted worldwide. However, its adoption in developing countries remains suboptimal, with existing studies predominantly focusing on policy frameworks or the impact of a single policy instrument. This study addresses this research gap by optimizing the path of PC promotion from the perspective of policy mixes.
Design/methodology/approach
The study employs fuzzy-set qualitative comparative analysis (fsQCA) in conjunction with necessary condition analysis, to explore effective policy configurations for PC promotion. A comprehensive collection of 171 PC-related policies issued by the Chinese government was analyzed using text mining to identify antecedent conditions of configuration. Data were further obtained through a questionnaire survey involving 263 valid responses, with fsQCA used to derive the optimal policy configurations.
Findings
The analysis identified six distinct combination paths for effective policy configurations. Land supply and governmental procurement were found to be core conditions, while fiscal and taxation financial measures emerged as marginal conditions prevalent across all paths. These findings suggest that land supply policies are particularly suitable for regions with limited land resources, such as Shanghai, while government procurement is more effective in regions like Xinjiang, where PC awareness is still developing.
Practical implications
In practice, the conclusions enable policymakers to clearly understand policy instruments, thereby finding differentiated pathways for promoting PC with comparable effects. The proposed recommendations help advance PC development effectively while reducing financial burden and minimizing resource waste. This provides important guidance for PC development across different regions or stages, helps address regional imbalances in PC development, and ultimately contributes to the broader goal of sustainable urban development.
Originality/value
This study significantly enriches the research on PC policy combinations by utilizing more comprehensive and robust data, thereby enhancing the universal applicability of the findings. The results provide valuable references for policymakers in different regions, helping to address regional imbalances in PC development and facilitating the construction industry’s transition towards greater intelligence and sustainability.
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The integration of women higher education leaders into the ideal discourse of educational leadership is a significant issue, as the discourses on women and leadership are…
Abstract
The integration of women higher education leaders into the ideal discourse of educational leadership is a significant issue, as the discourses on women and leadership are continually reshaped in a changing social background, with their compatibility directly influencing women leaders’ construction, understanding and presentation of their leadership identities. In recent years, the Ministry of Education in China has issued a series of documents encouraging the promotion of academic and innovative development in higher education. In response, local governments and higher education institutions (HEIs) have introduced policies that directly link the achievements of university teachers and leaders to evaluations, promotions and performance assessments. The concept of ‘academic and innovative’ encompasses both research and innovation – the ideal educational leader is expected to demonstrate stable research outcomes while actively promoting educational reforms. This chapter focuses on the narratives of women higher education leaders. In particular, the study explores the structural challenges faced by women leaders within the higher education system in integrating this seemingly non-conflicting new ideal leadership discourse with their identities. The research is derived from narrative interviews with eight women leaders in HEIs in China, focusing on their understanding, construction and presentation of their leadership identities. The study suggests that the discourse surrounding the ideal ‘academic and innovative’ higher education leader, while not directly opposing traditional notions of ‘feminine traits’, brings a set of performance management-like evaluation criteria for leaders. However, due to structural challenges within higher education, women face significant hurdles in attempting to integrate into the emerging ideal leadership discourse.
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Ilan Alon, Romie F. Littrell and Allan K.K. Chan
This article reviews and discusses issues in the translation of international brand names to Chinese, and provides a framework for international brand managers who want to expand…
Abstract
This article reviews and discusses issues in the translation of international brand names to Chinese, and provides a framework for international brand managers who want to expand into China. Linguistic differences between Chinese and English are wide and deep, making translation of brand names difficult. Cultural context, pronunciation, written vs. oral language, and the meaning of characters are just a few examples of such difficulties. We discuss four global product‐naming strategic alternatives available to country/brand managers, along with their usage. The four approaches include (1) dual extension, (2) brand meaning extension, (3) brand feeling extension, and (4) dual adaptation. We also provide examples of brands utilizing the different approaches.