Search results

This study aims to understand the influence of raceway surface topography on the temperature rise characteristics of silicon nitride (Si₃N₄) full ceramic ball bearing and improve its service life.

The arithmetic average height S_a, skewness S_sk and kurtosis S_ku in the three-dimensional surface roughness parameters are used to quantitatively characterize the surface topography of the raceway after superfinishing. The bearing life testing machine is used to test the Si₃N₄ full ceramic ball bearing using polytetrafluoroethylene (PTFE) cage under dry friction conditions, and the self-lubricating full ceramic ball bearing heat generation model is established.

With the decrease of S_a and S_sk on the raceway surface and the increase of S_ku, the average height of the raceway surface decreases, and the peaks and valleys tend to be symmetrically distributed on the average surface, and the surface texture becomes tighter. This kind of raceway surface topography is beneficial to form a thin and uniform filamentous PTFE transfer film with a wide coverage area on the raceway surface based on consuming less cage materials and improving the temperature rise characteristics of hot isostatic pressing silicon nitride full ceramic ball bearings.

The research results provide a theoretical basis for the reasonable selection of Si₃N₄ ring raceway processing technology and have important significance for improving the working characteristics and service life of Si₃N₄ full ceramic ball bearings under dry friction conditions.

COVID-19 halted global tourism, prompting stakeholders to use virtual reality (VR) tourism to maintain interest. Due to technological advancements and wider internet access globally, VR tourism has become increasingly popular. Guided by the attention-interest-desire-action (AIDA) model and the technology acceptance model (TAM) frameworks, and with the inclusion of personal innovativeness, this study aims to clarify consumer intentions toward engaging with VR tourism by investigating factors such as personal innovativeness, interest, perceived usefulness (PU), perceived ease of use (PEOU), attitude and desire.

Data was gathered from 252 participants using a cross-sectional approach, with partial least squares structural equation modeling used to assess the research model.

The findings indicate consumers' personal innovativeness strongly influences VR tourism intention, mediated by PU, attitude and desire. VR tourism intention is also significantly impacted by interest in VR tourism and is mediated by PU and PEOU, attitude and desire. PEOU and PU are significantly linked to interest and determine attitude. Attitude, both directly and indirectly, significantly influences VR tourism intention through users' desire, which mediates the relationship. Through multiple group analysis, the path from desire to intention is found to be moderated by age, education and marital status.

Theoretically, this study pioneers a framework that merges AIDA, TAM and personal innovativeness to advance the understanding of VR tourism adoption dynamics and enrich tourism research. Managerially, it provides valuable guidance on targeting communications and technology toward increasing VR tourism engagement and presents a roadmap for industry practitioners.

This research addresses the identified gaps in extant literature by combining TAM and AIDA with personal innovativeness to investigate the process of consumers' VR tourism intention, triggered by consumers' personal innovativeness and interest in VR tourism. The study highlights significant managerial insights for both tourism industry practitioners and academic researchers, which can assist with decision-making to promote VR tourism development.

COVID-19 使全球旅游业停滞不前, 促使利益相关者使用虚拟现实 (VR) 旅游来保持兴趣。由于技术进步和全球互联网接入的增长, VR 旅游变得越来越受欢迎。基于注意-兴趣-渴望-行动模型 (AIDA) 和技术接受模型 (TAM) 框架, 并纳入个人创新性, 本研究旨在通过调查个人创新性、兴趣、感知有用性、感知易用性、态度和渴望等因素, 澄清消费者对参与 VR 旅游的意图。

使用横截面方法收集了252名参与者的数据, 并使用偏最小二乘结构方程建模来评估研究模型。

研究结果表明, 消费者的个人创新性通过感知有用性、态度和渴望显著影响 VR 旅游意图。VR 旅游意图也受到对 VR 旅游兴趣的显著影响, 并通过感知有用性、感知易用性、态度和渴望进行调节。感知易用性和感知有用性显著与兴趣相关, 并决定态度。态度通过用户的渴望直接和间接地显著影响 VR 旅游意图, 这些渴望调节了这种关系。通过多群组分析, 发现年龄、教育和婚姻状况对渴望与意图之间的路径具有调节作用。

本研究通过结合 TAM 和 AIDA 与个人创新性来研究消费者的 VR 旅游意图过程, 填补了现有文献中的空白。本研究强调了对旅游业从业者和学术研究人员的重大管理见解, 这些见解可以帮助决策者推动 VR 旅游的发展。

从理论上讲, 本研究开创了一个结合 AIDA、TAM 和个人创新性的框架, 以提升对 VR 旅游采用动态的理解, 并丰富旅游研究。从管理角度来看, 它提供了有价值的指南, 帮助定位通信和技术, 以增加 VR 旅游参与度, 并为行业从业者提供了发展路线图。

El COVID-19 detuvo el turismo global, lo que indujo a las partes implicadas a utilizar el turismo de realidad virtual para mantener el nivel de interés. Debido a los avances tecnológicos y al acceso más amplio a Internet a nivel mundial, el turismo de realidad virtual se ha vuelto cada vez más común. Basándose en el modelo de Atención-Interés-Deseo-Acción (AIDA) y en el modelo de aceptación tecnológica (TAM), y con la inclusión de la innovación personal, este estudio tiene como objetivo comprender las intenciones de los consumidores hacia el compromiso con el turismo de realidad virtual investigando factores como la innovación personal, el interés, la utilidad percibida, la facilidad de uso percibida, la actitud y el deseo.

Se recopilaron datos de 252 participantes utilizando un enfoque transversal, y se utilizó la modelización de ecuaciones estructurales de mínimos cuadrados parciales para evaluar el modelo de investigación.

Los resultados indican que la innovación personal de los consumidores influye fuertemente en la intención de turismo de realidad virtual mediada por la utilidad percibida, la actitud y el deseo. La intención de turismo de realidad virtual también se ve significativamente afectada por el interés en el turismo de realidad virtual y está mediada por la utilidad percibida y la facilidad de uso percibida, la actitud y el deseo. La facilidad de uso percibida y la utilidad percibida están significativamente relacionadas con el interés y determinan la actitud. La actitud influye tanto directa como indirectamente de manera significativa en la intención de turismo de realidad virtual a través del deseo de los usuarios, que media en la relación. A través del análisis de múltiples grupos, se encontró que la edad, la educación y el estado civil moderan la relación entre el deseo y la intención.

Desde el punto de vista teórico, este estudio es pionero en la creación de un marco que aúna AIDA, TAM e innovación personal para avanzar en la comprensión de la dinámica de adopción del turismo de realidad virtual y enriquecer la investigación turística. Desde el punto de vista de la gestión, ofrece una valiosa orientación sobre cómo orientar las comunicaciones y la tecnología para aumentar la participación del turismo de realidad virtual y presenta una hoja de ruta para los profesionales del sector.

Esta investigación aborda las lagunas identificadas en la literatura existente mediante la integración de TAM y AIDA con la innovación personal para analizar el proceso de la intención de los consumidores de turismo de realidad virtual, provocada por la innovación personal de los consumidores y el interés en el turismo de realidad virtual. El estudio pone de relieve importantes perspectivas de gestión tanto para los profesionales del sector turístico como para los investigadores académicos, que pueden ayudar en la toma de decisiones para promover el desarrollo del turismo de realidad virtual.

This study aims to explore the mechanism of boundary-spanning search on firm’s innovation performance under environmental dynamics from the perspective of strategic knowledge integration.

A survey was conducted among Chinese firm managers and R&D personnel, resulting in the collection of 315 valid samples. Hierarchical regression analysis was mainly adopted to demonstrate the hypothesized relationships, while the Sobel test and bootstrap method were used to further validate the mediating effects.

The results demonstrate that boundary-spanning search in different dimensions is a critical factor in the improvement of firm innovation performance (FIP). Two types of strategic knowledge integration are the main factors causing FIP and mediate the influence of boundary-spanning search on FIP. Furthermore, environmental dynamics moderate the relationship among boundary-spanning search, strategic knowledge integration and FIP.

Managers need to strengthen the boundary-spanning search for market and technical knowledge, which will promote firm innovative performance. Managers also need to implement strategic knowledge integration, which specifically includes using planned strategic knowledge integration to compensate for knowledge deficiencies, thereby achieving predetermined objectives; and using emergent strategic knowledge integration to update their understanding of internal and external environments, and to reset strategic objectives. In dynamic environments, managers should emphasize strategic knowledge management activities more.

From a strategic management perspective, this study categorizes strategic knowledge integration into planned and emergent forms. By applying the logic of knowledge acquisition, integration and creation, it explores how boundary-spanning search affects FIP through strategic knowledge integration as the intermediary and the boundary conditions of environmental dynamics. This not only provides a deeper understanding of the nature and effects of boundary-spanning research but also enhances the theory of strategic knowledge management.

Generative conversational artificial intelligence (AI) demonstrates powerful conversational skills for general tasks but requires customization for specific tasks. The quality of a custom generative conversational AI highly depends on users’ guidance, which has not been studied by previous research. This study uses social exchange theory to examine how generative conversational AI’s cognitive and emotional conversational skills affect users’ guidance through different types of user engagement, and how these effects are moderated by users’ relationship norm orientation.

Based on data collected from 589 actual users using a two-wave survey, this study employed partial least squares structural equation modeling to analyze the proposed hypotheses. Additional analyses were performed to test the robustness of our research model and results.

The results reveal that cognitive conversational skills (i.e. tailored and creative responses) positively affected cognitive and emotional engagement. However, understanding emotion influenced cognitive engagement but not emotional engagement, and empathic concern influenced emotional engagement but not cognitive engagement. In addition, cognitive and emotional engagement positively affected users’ guidance. Further, relationship norm orientation moderated some of these effects such that the impact of user engagement on user guidance was stronger for communal-oriented users than for exchange-oriented users.

First, drawing on social exchange theory, this study empirically examined the drivers of users’ guidance in the context of generative conversational AI, which may enrich the user guidance literature. Second, this study revealed the moderating role of relationship norm orientation in influencing the effect of user engagement on users’ guidance. The findings will deepen our understanding of users’ guidance. Third, the findings provide practical guidelines for designing generative conversational AI from a general AI to a custom AI.

This paper aims to explore how a shared service centre (SSC) is mobilised in a power-dominant context of a Chinese state-owned enterprise (SOE). Specifically, it examines the mobilisation of SSC within this multi-divisional SOE, the role and dynamics of actors involved and the influence of changes in the integrated information system (IIS) during the mobilisation process.

The study follows a qualitative case study methodology. The authors draw on actor-network theory to examine the network and translation processes constructed in mobilising SSC in the chosen SOE. The data sources of this study were collected through semi-structured interviews, observations and documentary reviews.

The mobilisation of SSC is not a linear process but rather a “spiral” interplay through continuous interactions and compromises between human and non-human actors. Power gave the core actor as an orchestrator legitimacy and formality to reduce resistance and obstruction in translation for the mobilisation of SSC. The changes in IIS appear to facilitate the interaction between the heterogeneous actors.

This case study contributes towards understanding the mobilisation of SSC in a power-dominant context by highlighting the impact of changes in IIS and the details of the mobilisation of SSC in terms of the role played by both the individual actors and the technology.

This study provides a broader understanding of the interactions of the heterogeneous actors for mobilising SSC in a power-dominant context. More importantly, the study inspires future research into examining how SSC practices unfold and how the changes in IIS influence the mobilisation of SSC.

The purpose of this paper is to improve the mechanical and tribological properties of Si₃N₄ ceramics and to make the application of Si₃N₄ ceramics as tribological materials more extensive.

Si₃N₄-based composite ceramics (SN-2L) containing nitrogen-doped graphene quantum dots (N-GQDs) were prepared by hot press sintering process through adding 2 Wt.% nanolignin as precursor to the Si₃N₄ matrix, and the dry friction and wear behaviors of Si₃N₄-based composite against TC4 disc were performed at the different loads by using pin-on-disc tester.

The friction coefficients and wear rates of SN-2L composite against TC4 were significantly lower than those of the single-phase Si₃N₄ against TC4 at the load range from 15 to 45 N. At higher load of 45 N, SN-2L/TC4 pair presented the lowest friction coefficient of 0.25, and the wear rates of the pins and discs were as low as 1.76 × 10⁻⁶ and 2.59 × 10⁻⁴mm³/N·m. The low friction and wear behavior could be attributed to the detachment of N-GQDs from the ceramic matrix to the worn surface at the load of 30 N or higher, and then an effective lubricating film containing N-GQDs, SiO₂, TiO₂ and Al₂SiO₅ formed in the worn surface. While, at the same test condition, the friction coefficient of the single-phase Si₃N₄ against TC4 was at a range from 0.45 to 0.58. The spalling and cracking morphology formed on the worn surface of single-phase Si3N4, and the wear mechanism was mainly dominated by adhesive and abrasive wear.

Overall, a high-performance green ceramic composite was prepared, and the composite had a good potential for application in engineering tribology fields (such as aerospace bearings).

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-05-2024-0161/

The purpose of this study is to examine the impact of green bonds on common prosperity in China. Green bonds have gained significant attention as a means to address financial challenges and promote environmental protection. This research aims to investigate the influence of green bonds on common prosperity by utilizing the system-generalized method of moments (SYS-GMM) and analyzing panel data from prefecture-level cities. The study also explores the theoretical mechanisms and heterogeneous relationships between green bonds and common prosperity, providing valuable guidance for advancing economic and social well-being in China.

This study employs a system-generalized method of moments (SYS-GMM) as the methodology to investigate the influence of green bonds on common prosperity in China. Panel data from prefecture-level cities for the period 2014 to 2020 are utilized for analysis. The SYS-GMM approach allows for the examination of dynamic relationships and control of endogeneity issues. By utilizing this methodology, the study aims to provide robust and reliable findings on the impact of green bonds on common prosperity, considering the specific context of China's ecological civilization development and financial challenges faced by energy-saving and environmental protection enterprises.

The findings of this research indicate several important outcomes. Firstly, common prosperity in China experienced substantial growth between 2014 and 2020. Secondly, green bonds have demonstrated a clear and positive impact on common prosperity. They contribute to the enhancement of common prosperity by driving industrial structure upgrading and fostering green technology innovation. Lastly, the study reveals that the positive influence of green bonds on common prosperity is particularly pronounced in the western region of China. These findings highlight the significance of green bonds in promoting sustainable economic development and societal well-being.

This study contributes to the existing literature by examining the impact of green bonds on common prosperity in China, utilizing the system-generalized method of moments (SYS-GMM) and panel data analysis. The research not only adds to the understanding of the relationship between green bonds and economic well-being but also provides insights into the theoretical mechanisms and heterogeneous relationships involved. The findings showcase the positive influence of green bonds on common prosperity, emphasizing their role in addressing financial challenges, promoting environmental protection, and driving sustainable development. The study's conclusions offer valuable guidance for policymakers, financial institutions, and stakeholders in advancing common prosperity in China.

The discrepancy between the content of an article and its title is a key characteristic of fake news. Current methods for detecting fake news often ignore the significant difference in length between the content and its title. In addition, relying solely on textual discrepancies between the title and content to distinguish between real and fake news has proven ineffective. The purpose of this paper is to develop a new approach called semantic enhancement network with content–title discrepancy (SEN–CTD), which enhances the accuracy of fake news detection.

The SEN–CTD framework is composed of two primary modules: the SEN and the content–title comparison network (CTCN). The SEN is designed to enrich the representation of news titles by integrating external information and position information to capture the context. Meanwhile, the CTCN focuses on assessing the consistency between the content of news articles and their corresponding titles examining both emotional tones and semantic attributes.

The SEN–CTD model performs well on the GossipCop, PolitiFact and RealNews data sets, achieving accuracies of 80.28%, 86.88% and 84.96%, respectively. These results highlight its effectiveness in accurately detecting fake news across different types of content.

The SEN is specifically designed to improve the representation of extremely short texts, enhancing the depth and accuracy of analyses for brief content. The CTCN is tailored to examine the consistency between news titles and their corresponding content, ensuring a thorough comparative evaluation of both emotional and semantic discrepancies.

This chapter reviews the competition between full-service carrier (FSC) and low-cost carrier (LCC) in China. More importantly, we discuss the impacts of the COVID-19 pandemic on FSC–LCC competition. Specifically, the airlines' route choices and also the market contact between FSCs and LCCs in China are examined and discussed. Our review results suggest that, despite the rapid growth of the independent LCC Spring Airlines and the establishment of new subsidiary LCCs by FSCs, China's LCC sector still plays relatively minor roles compared with many fully deregulated markets. Subsidiary LCCs serve more as competitive tools for their parent FSCs, primarily deployed on their parent FSCs' routes to jointly compete against rival FSCs. This competition is primarily focused on niche regional markets rather than engaging in full-scale competition. Spring Airlines also strategically avoided direct head-to-head competition with FSCs before the pandemic by mainly connecting with the secondary cities. However, the pandemic has introduced significant changes, notably the network differentiation between FSCs and LCCs in mainland China. With the relaxation of government's regulations on airline route entries into hub airports during pandemic, Chinese LCCs have shifted their focus toward serving more dense routes, especially those connected to the top five cities. This shift has led to an intensified head-to-head competition between LCCs and FSCs following the outbreak of the pandemic. Such a process is likely to continue in the years to come. This chapter's discussions could also provide new insights into LCC development and the impact of the pandemic on FSC–LCC competition interactions to supplement existing literature studying other major airline markets.

The impact of environmental regulations on ecological innovation is a contested issue in current research. However, there is no uniform consensus on existing conclusions. It is commonly accepted among scholars that external environment and organizational characteristics are key factors affecting ecological innovation. However, these are often analyzed in isolation, without consideration of the interaction between leadership and external environment. So this study aims to explore the impact of environmental regulation on ecological innovation by combining internal and external factors.

Based on institutional theory and leadership theory, this paper takes environmental regulation as the independent variable, environmental leadership as the intermediary variable and intellectual property protection level as the regulating variable to explore the impact mechanism of environmental regulation on ecological innovation.

The findings indicate an inverted U-shaped relationship between environmental regulation and ecological innovation. Additionally, there is a positive correlation between environmental leadership and intellectual property protection level with ecological innovation. Furthermore, environmental leadership partially mediates the relationship between environmental regulation and ecological innovation. However, the level of intellectual property protection does not have a significant moderating effect on the relationship between environmental leadership and ecological innovation.

This paper proposes suggestions for regional ecological innovation based on the current policy and research situation to promote its development.