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The purpose of this study is to investigate the influence of rotational speed on the oil film stability of the hydrostatic rotary table having double rectangular oil pads. The oil film stability is evaluated based on the oil film stiffness under constant load condition and the displacement response amplitude of the oil film under disturbance load condition.

The oil film stability theoretical equations of the double rectangular oil cavity are deduced such as oil film stiffness, damping and dynamic equations. A simulation model is developed to analyze the relationship among oil film temperature, oil film pressure fields and oil film stability. The user-defined function programs are used to control the rotational speed, lubricant viscosity and oil film thickness during the simulation. In addition, an experimental rig is built to test the simulation results.

This study shows that oil film stability decreases with increasing rotational speed under constant load and disturbance load. The trend of oil film stability decreased slowly within 30 r/min, and then rapidly. However, since the hydrodynamic pressure effect, the decrease rate of stability is mitigated under constant load and high rotational speeds.

The conclusions can provide a theoretical basis for improving the oil film stability of machines with similar hydrostatic support structure.

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-07-2024-0267/

To investigate the influence of vehicle operation speed, curve geometry parameters and rail profile parameters on wheel–rail creepage in high-speed railway curves and propose a multi-parameter coordinated optimization strategy to reduce wheel–rail contact fatigue damage.

Taking a small-radius curve of a high-speed railway as the research object, field measurements were conducted to obtain track parameters and wheel–rail profiles. A coupled vehicle-track dynamics model was established. Multiple numerical experiments were designed using the Latin Hypercube Sampling method to extract wheel-rail creepage indicators and construct a parameter-creepage response surface model.

Key service parameters affecting wheel–rail creepage were identified, including the matching relationship between curve geometry and vehicle speed and rail profile parameters. The influence patterns of various parameters on wheel–rail creepage were revealed through response surface analysis, leading to the establishment of parameter optimization criteria.

This study presents the systematic investigation of wheel–rail creepage characteristics under multi-parameter coupling in high-speed railway curves. A response surface-based parameter-creepage relationship model was established, and a multi-parameter coordinated optimization strategy was proposed. The research findings provide theoretical guidance for controlling wheel–rail contact fatigue damage and optimizing wheel–rail profiles in high-speed railway curves.

The purpose of this paper is to integrate job demands–resources theory with core self-evaluation theory to examine how and when sustainable project leadership stimulates sustainable project performance. Psychological empowerment is used as a mechanism between sustainable project leadership and sustainable project performance, whereas core self-evaluation acts as a moderator between sustainable project leadership and psychological empowerment.

This study adopts a time-lagged two-phase approach to collecting data from 257 software engineers working in medium-sized and large companies in the Polish financial sector.

This study reveals the direct and indirect (through psychological empowerment) effects of sustainable project leadership on sustainable project performance. It also confirms that the “sustainable project leadership–psychological empowerment” relationship strengthens with increasing level of project team members’ core self-evaluation.

This article explores a unique research framework. It significantly enriches the literature on sustainable project management, increasing the understanding of effective leadership practices that address the needs of software engineering teams to support sustainable project performance.

Because the food service industry is more dependent on customer contact and human resources than other industries, it is crucial to understand the factors influencing employee job satisfaction to ensure that employees provide satisfactory service to customers. However, few studies have incorporated employee reviews of job portals into their research. Many job seekers tend to trust company reviews posted by employees on job portals based on the information provided by the company itself. Thus, this study utilized company reviews and job satisfaction ratings from employees in the food service industry on a job portal site, Job Planet, to conduct mixed-method research.

For qualitative research, we applied the Latent Dirichlet Allocation (LDA) model to food service industry company reviews to identify 10 job satisfaction factors considered important by employees. For quantitative research, four algorithms were used to predict job satisfaction ratings: regression tree, multilayer perceptron (MLP), random forest and XGBoost. Thus, we generated predictor variables for six cases using the probability values of topics and job satisfaction ratings on a five-point scale through LDA and used them to build prediction algorithms.

The analysis showed that algorithm accuracy performed differently in each of the six cases, and overall, factors such as work-life balance and work environment have a significant impact on predicting job satisfaction ratings.

This study is significant because its methodology and results suggest a new approach based on data analysis in the field of human resources, which can contribute to the operation and planning of corporate human resources management in the future.

To maximize the benefits of intercultural mentoring relationships, which are increasing in today’s diverse higher education environment, the current article conceptualizes the connection between intercultural mentoring and cultural competence among mentors and mentees as a learning process.

The conceptual paper discusses the nuanced aspects of intercultural mentoring. Ultimately, the current article presents a framework for a bidirectional relationship between intercultural mentoring and cultural competence through experiential learning theory and intergroup contact theory, resulting in implications for practitioners and actionable research directions.

The article highlights the interplay and interdependence of cultural competence and intercultural mentoring through experiential learning and intergroup contact theory. Cultural competence influences the quality of intercultural mentoring relationships. Conversely, intercultural mentoring relationships can develop cultural competence in mentors and mentees through experiential learning, producing positive intergroup contact behaviors. Findings suggest the need for active learning and unlearning among mentors and mentees in intercultural mentoring relationships to maximize developmental outcomes (e.g. cultural competence).

The proposed framework emphasizes that (1) the possession of cultural competence is a critical success factor for intercultural mentoring relationships, (2) the development of cultural competence is an outcome of successful intercultural mentoring relationships, and (3) intercultural mentoring relationships should be regarded as experiential learning platforms that can produce positive intercultural traits such as cultural competence.

Based on social exchange theory (SET), the current research aims to investigate the relationship between illegitimate tasks (ITs) and employees’ knowledge-hiding behavior (KHB), incorporating the mediating role of psychological contract violation (PCV) and the moderating role of optimism.

A two-wave time-lagged survey was conducted to collect data from 196 adult Chinese full-time employees.

ITs were positively related to KHB, and this relationship was mediated by PCV. Furthermore, optimism buffered the connection between ITs and PCV as well as the mediating effect of PCV on the relationship between ITs and KHB.

For managers, this study made them aware of the hidden costs of ITs; that is, employees may respond by concealing knowledge in the organization.

This study provides a more nuanced understanding of the relationship between ITs and employees’ subtle deviant behavior, KHB and hitherto unspecified mediating and moderating factors that explain this process.

This paper aims to explore how relative advantages, compatibility, perceived ease of use and perceived usefulness affect hotel room self-directed booking (SDB) behavior, specifically focusing on the mediating role of trust.

The research utilized the responses of 432 hotel guests, applying an extended technology acceptance model (TAM)− innovation diffusion theory (IDT)−trust framework and using partial least squares structural equation modeling to conduct both direct and indirect path analyses to confirm the study hypotheses.

Results show that perceived relative advantages, compatibility, usefulness and ease of use of the online booking platform significantly impact guests’ SDB behavior, with trust significantly mediating each of the proposed relationships, highlighting its crucial role in promoting online booking behavior.

This study underscores the importance of SDB providers’ showcasing the benefits and efficiency of online booking systems in influencing consumer decisions, offering new insights into how technological advancements affect SDB behavior in the hotel industry.

By integrating TAM, IDT and trust into an integrated framework, this study provides a comprehensive understanding of the diverse factors influencing hotel guest engagement with SDB, offering practical insights to enhance guest satisfaction with the SDB platform.

This study aims to review the results of relevant studies to shed light on social trust-building in different contexts and the factors that affect it in disaster risk management.

This systematic review was conducted using the Preferred Reporting Items for Systematic reviews and Meta-Analyses model. The study keywords were searched for in PubMed, Scopus and Web of Science databases on August 2021. The inclusion criteria were English-written articles published in social trust and disaster relief efforts. Exclusion criteria were lack of access to the full text and article types such as nonoriginal articles.

Out of 1,359 articles found, 17 articles were included in the final analysis using four general categories: six articles on the role of local government in trust-building (local governments), five articles on the role of social media in trust-building (social media), four articles on the role of social capital in trust-building (social capital) and two articles on the importance of community participation in trust-building (community participation).

Understanding the role of social trust and the factors which influence it will help the development of community-based disaster risk management. Therefore, disaster management organizations and other relief agencies should take the findings of this study into account, as they can help guide policymaking and the adoption of strategies to improve public trust and participation in comprehensive disaster risk management. Further studies recommended understanding people’s experiences and perceptions of social trust, relief and disaster preparedness.

Up to 89.1% of consumers have changed their decisions due to the influence of online reviews. In order to increase the number of reviews, some websites and platforms have adopted feedback incentives. Research shows that offering review incentives does increase the likelihood of consumers writing reviews. However, the review reward system also brings some problems. Consumers may doubt the authenticity of product reviews that are incentivized by rewards, believing that reviewers are only writing reviews for personal gain, which has a negative impact on the credibility of the reviews. To address this issue, this study proposes a mechanism for mandatory disclosure of review incentives as research demonstrates that transparent online communication of a platform’s efforts can substantially boost review helpfulness restore trust in online platforms, and even improve purchase intentions.

This study applies the S-O-R (Stimulus-Organism-Response) theoretical framework and utilizes a simulated situational questionnaire to investigate the impact of online reviews on consumers' emotional and behavioral responses within the context of a mandatory disclosure review reward system. The model identifies four key constructs: review quality as the Stimulus, review credibility and review usefulness as the Organism, and purchase intention as the Response. Data were collected through the questionnaire and subsequently analyzed to understand these relationships.

The results show that review quality has a significant positive impact on review credibility, review usefulness and purchase intention. Similarly, review credibility and review usefulness also have significant positive impacts on purchase intention.

To mitigate the potential negative effects of review reward systems, this study introduces a mandatory disclosure of the review reward and examines its impact using a simulated situational questionnaire. The study hypothesizes that mandatory disclosure of rewarded reviews enables consumers to identify these reviews, which may, in turn, enhance their purchase intentions.

This research aims to explore the mechanisms and conditions that motivate diners to engage in foodstagramming. It focuses on intrinsic versus extrinsic motivations, and the role of the dining environment in facilitating social connection and social commerce intention.

Two scenario-based experiments were conducted among Chinese participants. Experiment 1 (n = 219) used a one-factor between-subjects design to test the effect of foodstagramming incentives (intrinsic vs extrinsic) on social commerce intention. Experiment 2 (n = 529) used a 2 (foodstagramming incentive: extrinsic vs intrinsic) × 2 (environmental attractiveness: low vs high) between-subjects design to examine the mediation of social connection and the moderation of environmental attractiveness.

Intrinsic incentives more effectively enhance tourists’ social commerce intention than extrinsic incentives. The attractiveness of the dining environment moderates this relationship. Extrinsic incentives significantly boost social commerce intention and social connection in low-attractiveness environments, but not in high-attractiveness environments. Social connection serves as a conditional mediator.

Restaurant managers should prioritize superior service and culinary offerings, and invest in appealing dining environments to encourage tourists to share their dining experiences, leveraging word-of-mouth promotions. In less attractive settings, external incentives like coupons or discounts can promote food selfie-taking and sharing, driving social commerce intention.

This study offers new insights into foodstagramming motivations, highlighting the effectiveness of economic incentives and the role of the service environment in influencing social commerce behaviors. It expands the literature on service environments by explaining their effect on tourists’ sharing, commenting, liking and repurchasing behaviors.

本研究探讨了激励食客进行“美食打卡”行为的机制与条件, 重点分析了内在与外在激励, 以及用餐环境在促进社交联系和社交商务意图中的作用。

研究基于两个场景实验, 实验对象为中国参与者。实验1（n = 219）采用单因素组间设计, 以测试美食打卡激励（内在 vs. 外在）对社交商务意图的影响。实验2（n = 529）采用2（美食打卡激励：外在 vs. 内在）× 2（环境吸引力：低 vs. 高）的组间设计, 考察了社交联系的中介作用以及环境吸引力的调节作用。

内在激励比外在激励更有效地提升游客的社交商务意图。餐饮环境的吸引力对该关系具有调节作用。在低吸引力环境中, 外在激励显著增强了社交商务意图和社交联系, 而在高吸引力环境中则不然。社交联系作为一个有条件的中介发挥作用。

餐厅经理应优先提供优质服务和高水平餐饮, 同时投资于吸引人的用餐环境, 以鼓励游客分享他们的用餐体验, 借此促进口碑传播。在吸引力较低的环境中, 优惠券或折扣等外在激励可以有效促进美食自拍和分享行为, 进而推动社交商务意图。

本研究为美食打卡动机提供了新见解, 突显了经济激励的效果以及服务环境在社交商务行为中的作用。研究扩展了关于服务环境的文献, 阐释了其对游客分享、评论、点赞和复购行为的影响。

Esta investigación explora los mecanismos y condiciones que motivan a los comensales a participar en foodstagramming. Se centra en las motivaciones intrínsecas frente a las extrínsecas, así como en el papel del entorno gastronómico para facilitar la conexión social y la intención de comercio social.

Se realizaron dos experimentos basados en escenarios con participantes chinos. En el Experimento 1 (n = 219) se utilizó un diseño de un factor entre sujetos para comprobar el efecto de los incentivos de foodstagramming (intrínsecos vs. extrínsecos) en la intención de comercio social. En el Experimento 2 (n = 529) se empleó un diseño 2 (incentivo de foodstagramming: extrínseco vs. intrínseco) × 2 (atractivo del entorno: bajo vs. alto) entre sujetos para examinar la mediación de la conexión social y la moderación del atractivo del entorno.

Los incentivos intrínsecos mejoran de manera más efectiva la intención de comercio social de los turistas que los incentivos extrínsecos. El atractivo del entorno gastronómico modera esta relación. Los incentivos extrínsecos incrementan significativamente la intención de comercio social y la conexión social en entornos poco atractivos, pero no en entornos muy atractivos. La conexión social actúa como un mediador condicional.

Los gerentes de restaurantes deben dar prioridad a un servicio y una oferta culinaria superiores, e invertir en entornos gastronómicos atractivos para animar a los turistas a compartir sus experiencias gastronómicas, aprovechando la promoción boca a boca. En entornos menos atractivos, los incentivos externos, como cupones o descuentos, pueden animar a los clientes a hacerse selfies y compartirlos, impulsando así la intención de comercio social.

Este estudio ofrece nuevos conocimientos sobre las motivaciones para el foodstagramming, destacando la eficacia de los incentivos económicos y el papel del entorno del servicio en la influencia sobre los comportamientos de comercio social. Amplía la literatura sobre entornos de servicio explicando su efecto en los comportamientos de los turistas de compartir, comentar, dar “me gusta” y realizar compras repetidas.