Jun Sun, Xiao Zhang, Jianxiong Zhu, Yaming Gao, Hu Wang, Xiaoyong Zhao, Qin Teng, Yanping Ren and Guixiang Zhu
Currently, lubrication analysis of piston ring is generally done under engine rated operating condition. However, the engine (such as the vehicle engine) does not always operate…
Abstract
Purpose
Currently, lubrication analysis of piston ring is generally done under engine rated operating condition. However, the engine (such as the vehicle engine) does not always operate in rated operating condition, and its operating condition changes frequently in actual use. In addition, the lubrication status of piston ring is generally assumed as the flooded lubrication or a certain form of poor lubrication in most of the lubrication analysis.
Design/methodology/approach
In this paper, based on the equations about the flow rate of lubricating oil and the variation of control volume, the flow model of lubricating oil in the piston ring-cylinder liner conjunction is established. The lubrication analysis of piston ring for a four-stroke engine under different engine operating conditions is done, in which the lubricating oil at the inlet of piston ring is considered as the lubricating oil attached on the relevant location of cylinder wall after the piston ring moves over at the previous stroke.
Findings
There is remarkable difference for the lubrication characteristics of the piston ring under different engine operating conditions. The worst lubrication status of piston ring may not take place under engine rated operating condition.
Originality/value
In this paper, based on the measured engine cylinder pressure, the lubrication analysis of piston ring for a four-stroke engine under different engine operating conditions is done in which the lubricating oil supply condition at the inlet of piston ring is considered. The results of this paper are helpful for the design and research of engine piston ring-cylinder liner conjunction.
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Xiaojuan Li, Yanping Feng, Cora Un In Wong and Lianping Ren
This paper aims to understand Chinese tourists’ changing shopping experience in Macao. In scrutinizing reviews posted in the pre-COVID and during COVID eras, the study has…
Abstract
This paper aims to understand Chinese tourists’ changing shopping experience in Macao. In scrutinizing reviews posted in the pre-COVID and during COVID eras, the study has identified changing patterns in Chinese tourists’ shopping experiences, including increased leisure components while shopping, decreased luxury pursuits and an improved overall leisure and shopping experience because of decreased prices in accommodation and a less crowded retail and leisure environment. An emergent opportunity to provide “retail-tainment” experience is discussed.
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Zonghua Liu, Yanping Li, Yulang Guo, Ming Zhang and Thomas Ramsey
With increasing pressure to achieve environmental sustainability, hotel organizations implement green human resource management (GHRM) to inspire employees’ green behavior to…
Abstract
Purpose
With increasing pressure to achieve environmental sustainability, hotel organizations implement green human resource management (GHRM) to inspire employees’ green behavior to improve environmental performance. Following the conservation of resources theory, this research aims to examine how GHRM fosters employee green advocacy.
Design/methodology/approach
Data were obtained from 315 employees from 24 hotels in China. This study used the SPSS PROCESS to test the mediation and moderated mediation model.
Findings
The results showed that GHRM has a positive impact on green advocacy, and harmonious environmental passion (HEP) fully mediates the positive relationship between GHRM and green advocacy. Furthermore, the relationship between GHRM, HEP and green advocacy is moderated by environmentally specific transformational leadership (ESTL). Subsequently, the findings imply that the indirect effect of GHRM on green advocacy via HEP is stronger while ESTL is higher.
Originality/value
This study extends the research on GHRM and green advocacy by exploring how and when GHRM stimulates employee green advocacy via HEP in the Chinese context.
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Dujun Qiu, Pearl M.C. Lin, Sandra Yanping Feng, Kang-Lin Peng and Daisy Fan
This study aims to investigate the development of Airbnb in China from the perspective of hospitality leaders by identifying the positive and negative effects of Airbnb…
Abstract
Purpose
This study aims to investigate the development of Airbnb in China from the perspective of hospitality leaders by identifying the positive and negative effects of Airbnb development in the country.
Design/methodology/approach
A qualitative approach was adopted to explore the current development of sharing accommodation service in China. Focus group discussions were conducted with the managers and top executives of hotels in China.
Findings
Most of the participants affirmed that the experience of local culture and authenticity are the advantages of staying in this type of informal accommodation. From the viewpoint of hoteliers, traditional accommodation is necessary to rethink their strategies by providing authentic experiences. By contrast, Airbnb service may not seamlessly fit into Chinese culture. The result also indicated that there is a need for government to regulate the informal accommodation platforms.
Practical implications
This study provides views towards Airbnb from the traditional accommodation sector in Mainland China, which can contribute to the future regulation of informal accommodation services.
Originality/value
Chinese market is the leading sector in tourism industry. With the popularity of Airbnb development around the world, Airbnb is still in a developing stage in Mainland China. This study is based on 45 hoteliers and industry professionals in China, who share their views on Airbnb development and how it should move forward. The findings of this study shed light on the informal accommodation service and its future directions in China.
爱彼迎在中国的未来:酒店业领导者的行业观点
目的
这项研究旨在从酒店业领导者的角度调查Airbnb在中国的发展, 以确定Airbnb在中国发展的正面和负面影响。
设计/方法/方法
本文采用定性方法来探索中国共享住宿服务的当前发展。研究组与中国酒店的经理和高层管理人员进行了焦点小组讨论。
结果
大多数参与者表示, 当地文化和真实性的体验是住在Airbnb这种非正式住宿中的优势。从酒店经营者的角度来看, 传统的住宿业需要重新考虑他们的经营策略, 为顾客提供真实的体验。相比之下, Airbnb的服务可能无法无缝融入中国文化。结果还表明, 政府需要规范非正式的住宿平台。
实际含义
该研究提供了中国内地传统住宿业对Airbnb的看法, 这有助于未来对非正式住宿服务的监管。
创意/价值
中国市场是旅游业的主导市场。Airbnb在世界范围内不断普及, 而它在中国内地市场仍处于发展阶段。参与研究的45位中国酒店业者和行业专业人士, 分享了对Airbnb开发的看法以及其之后的发展方向。这项研究的结果阐明了非正式住宿服务在中国的未来发展方向。
El futuro de Airbnb en China: perspectiva de la industria desde el punto de vista de líderes hoteleros
Propósito
Este estudio tiene como objetivo investigar el desarrollo de Airbnb en China desde la perspectiva de líderes hoteleros, mediante la identificación de los efectos positivos y negativos del desarrollo de Airbnb en el país.
Diseño/metodología/enfoque
Se adoptó un enfoque cualitativo para explorar el desarrollo actual del servicio de alojamiento colaborativo en China. Se llevaron a cabo discusiones de grupos focales con los gerentes y altos ejecutivos de hoteles en China.
Resultados
La mayoría de los participantes afirmaron que la experiencia de la cultura local y la autenticidad, son las ventajas de alojarse en este tipo de “alojamiento informal”. Desde el punto de vista de los hoteleros, es necesario que el alojamiento tradicional, repiense sus estrategias proporcionando experiencias auténticas. Por el contrario, el servicio de Airbnb puede no encajar perfectamente en la cultura China. El resultado, también indicó que es necesario que el gobierno regule las “plataformas informales” de alojamiento.
Implicaciones prácticas
El estudio proporciona puntos de vista hacia Airbnb desde el sector de alojamiento tradicional en China continental, que puede contribuir a la futura regulación de los servicios de “alojamiento informal”.
Originalidad/valor
El mercado chino es el sector líder en la industria del turismo. Con la popularidad del desarrollo de Airbnb en todo el mundo, Airbnb aún se encuentra en una etapa de desarrollo en China continental. Este estudio se basa en 45 hoteleros y profesionales de la industria en China al compartir sus puntos de vista sobre el desarrollo de Airbnb y cómo debería avanzar. Los resultados de este estudio arrojan luz sobre el servicio de “alojamiento informal” y sus futuras direcciones en China.
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Yanping Liu, Bo Yan and Xiaoxu Chen
This paper studies the optimal decision-making and coordination problem of a dual-channel fresh agricultural product (FAP) supply chain. The purpose is to analyze the impact of…
Abstract
Purpose
This paper studies the optimal decision-making and coordination problem of a dual-channel fresh agricultural product (FAP) supply chain. The purpose is to analyze the impact of information sharing on optimal decisions and propose a coordination mechanism to encourage supply chain members to share information.
Design/methodology/approach
The two-echelon dual-channel FAP supply chain includes a manufacturer and a retailer. By using the Stackelberg game theory and the backward induction method, the optimal decisions are obtained under information symmetry and asymmetry and the coordination contract is designed.
Findings
The results show that supply chain members should comprehensively evaluate the specific situation of product attributes, coefficient of freshness-keeping cost and network operating costs to make decisions. Asymmetric information can exacerbate the deviation of optimal decisions among supply chain members and information sharing is always beneficial to manufacturers but not to retailers. The improved revenue-sharing and cost-sharing contract is an effective coordination mechanism.
Practical implications
The conclusions can provide theoretical guidance for supply chain managers to deal with information asymmetry and improve the competitiveness of the supply chain.
Originality/value
This paper combines the three characteristics that are most closely related to the reality of supply chains, including horizontal and vertical competition of different channels, the perishable characteristics of FAPs and the uncertainty generated by asymmetric demand information.
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Nour El-houda Daoudi, El-haddi Harkati, Djamel Boutagouga and Messaoud Louafi
The purpose of this paper is to study the effect of the relative density and geometric parameters on the homogenised in-plane elasticity modulus of a cellular honeycomb structure…
Abstract
Purpose
The purpose of this paper is to study the effect of the relative density and geometric parameters on the homogenised in-plane elasticity modulus of a cellular honeycomb structure using analytical and numerical approaches.
Design/methodology/approach
In this work, the mechanical behaviour of a new design of the honeycomb is analysed through a refined analytical model that is developed based on the energy theorems by considering the shearing and stretching effects in addition to bending.
Findings
By taking into account the various deformation mechanisms (MNT), the obtained results show that the values of elasticity modulus are the same for low relative densities, but the difference becomes remarkable for higher densities. Moreover, it is difficult to judge the effect of the relative density and anisotropy of the cellular structure on the values of the homogenised elasticity modulus without considering all the three deformation mechanisms in the analytical model. It is shown that conventional models overestimate the elasticity modulus, especially for high relative densities.
Originality/value
In this paper, a refined model that takes into account the three deformation mechanisms (MNT) is developed to predict the in-plane elasticity modulus of a honeycomb cellular material. It is shown that analytical models that describe the anisotropic behaviour of honeycomb cells can be improved by considering the three deformation mechanisms, which are bending, stretching, and shearing deformations.
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In today’s Taiwan, sha-cha sauce is an indispensable ingredient for beef hot pot and stir-fried dishes. The purpose of this paper contextualizes the history of sha-cha sauce in…
Abstract
Purpose
In today’s Taiwan, sha-cha sauce is an indispensable ingredient for beef hot pot and stir-fried dishes. The purpose of this paper contextualizes the history of sha-cha sauce in Tainan, the oldest city in Taiwan, and argues that sha-cha sauce, introduced by Chaoshan immigrants, has contributed to new styles and habits of beef consumption tastes and habits in the post-1949 Tainan and beyond.
Design/methodology/approach
This paper uses documentary materials, oral interviews and diaries to explore the relationship between beef consumption and sha-cha sauce. It begins with an historical overview of Taiwan’s beef consumption during the Japanese colonial era (1895-1945). Then, it focuses on two Chaoshan business enterprises: the Bull-Head, which makes the world’s largest “canned sha-cha sauce,” and the Xiao Haozhou, a Tainan restaurant specializing in sha-cha beef hot pot. Finally, this study analyzes Xinrong Wu, a Tainan gentry whose diary entries from 1933 to 1967 documented the changing dietary habits of beef consumption among Taiwanese.
Findings
The Chaoshan migrants played an important role in introducing the sha-cha sauce to postcolonial Tainan, and this input bolstered the beef consumption among Taiwanese. The production of sha-cha provided a reliable source of income for these migrants in Tainan, and major businesses like the Bull-Head became the international brands of Taiwanese food products.
Research limitations/implications
The study, though limited to Tainan, reveals the symbiosis between popularization of sha-cha sauce and widespread beef consumption in Taiwan.
Practical implications
This study helps researchers examine the connection between Chinese migrations and food culture.
Originality/value
This paper is an original scholarly investigation of the relationship between food diet and Chaoshan migration in postcolonial Tainan.
Kishor Purushottam Jadhav, Amita Mahor, Anirban Bhowmick and Anveshkumar N.
Non-orthogonal multiple access (NOMA) is a much hopeful scheme, which is deployed to enhance the spectral efficiency (SE) significantly, and it also enhances the massive access…
Abstract
Purpose
Non-orthogonal multiple access (NOMA) is a much hopeful scheme, which is deployed to enhance the spectral efficiency (SE) significantly, and it also enhances the massive access that has attained substantial concern from industrial and academic domains. However, the deployment of superposition coding (SC) at the receiver side resulted in interference. For reducing this interference, “multi-antenna NOMA” seems to be an emerging solution. Particularly, by using the channel state information at the transmitter, spatial beam forming could be deployed that eliminates the interference in an effective manner.
Design/methodology/approach
This survey analyzes the literature review and diverse techniques regarding the NOMA-based spatial modulation (SM) environment. It reviews a bunch of research papers and states a significant analysis. Initially, the analysis depicts various transmit antenna selection techniques that are contributed in different papers. This survey offers a comprehensive study regarding the chronological review and performance achievements in each contribution. The analytical review also concerns on the amplitude phase modulation (APM) selection schemes adopted in several contributions. Moreover, the objective functions adopted in the reviewed works are also analyzed. Finally, the survey extends with various research issues and its gaps that can be useful for the researchers to promote improved future works on NOMA-based SM.
Findings
This paper contributes to a review related to NOMA-based SM systems. Various techniques and performance measures adopted in each paper are analyzed and described in this survey. More particularly, the selection of transmission antenna and APM are also examined in this review work. Moreover, the defined objective function of each paper is also observed and made a chronological review as well. Finally, the research challenges along with the gaps on NOMA-based SM systems are also elaborated.
Originality/value
This paper presents a brief analysis of NOMA-based SM systems. To the best of the authors’ knowledge, this is the first work that uses NOMA-based SM systems to enhance SE.
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Hui Lu, Shaohan Cai, Yan Liu and Hong Chen
The purpose of this study is to investigate the impact mechanism of green human resource management (GHRM) on employee organizational citizenship behavior for the environment…
Abstract
Purpose
The purpose of this study is to investigate the impact mechanism of green human resource management (GHRM) on employee organizational citizenship behavior for the environment (OCBE). The authors maintain that anticipated environmental pride and guilt serve as dual mediators on the relationship between GHRM and OCBE, while environmental value discrepancy between employees and coworkers of the employees serve as the moderator on this relationship.
Design/methodology/approach
For this study, 226 valid questionnaires were obtained from various industries (food, machinery, electronics, etc.) in China and a hierarchical regression analysis was performed.
Findings
The results revealed that GHRM exerts a direct influence on OCBE, as well as indirect effects through anticipated environmental emotions. Environmental value discrepancy moderates the relationship between GHRM and anticipated environmental emotions.
Originality/value
The contribution of this study is not only to investigate the emotional impact mechanism between GHRM and employee OCBE, but also to identify the boundary conditions for the effect of GHRM on employees’ anticipated environmental emotions. The authors' findings offer a new theoretical framework for future research on GHRM, as well as practical implications for researchers and managers in organizational environmental management.
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Ann Veeck, Hongyan Yu, Hongli Zhang, Hong Zhu and Fang (Grace) Yu
The purpose of this study is to explore the association between eating patterns, social identity and the well-being of adolescents via a mixed methods study of Chinese teenagers…
Abstract
Purpose
The purpose of this study is to explore the association between eating patterns, social identity and the well-being of adolescents via a mixed methods study of Chinese teenagers. The specific research questions presented in this study are as follows: What is the relationship between social eating and well-being? How is the relationship between social eating and well-being mediated by social identity?
Design/methodology/approach
This study is based on a sequential mixed methods study, including interviews with 16 teenage–parent dyads, and a large-scale survey of over 1,000 teenagers on their eating patterns, conducted with the support of public schools. A model that tests relationships among social eating, social identity and subjective well-being is developed and tested.
Findings
The results show that dining with family members leads to improved subjective well-being for teenagers, through a partial mediator of stronger family identity. However, dining with peers is not found to influence subjective well-being.
Research limitations/implications
The privileged position of family meals demonstrated through this study may be an artifact of the location of this study in one Chinese city. Further research is needed related to the connections among social identity, objective well-being and the social patterns of teenagers’ food consumption behavior.
Practical implications
To improve the subjective well-being of teenagers, families, public policy-makers and food marketers should support food consumption patterns that promote family meals.
Originality/value
While many food-related consumer studies focus on the individual, social and environmental influences of food choices of adolescents, few studies address how eating patterns affect overall well-being. These results reinforce the importance of understanding the effect of the social context of teenagers’ eating patterns on health and well-being.