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The purpose of this paper is to develop a novel method for analyzing wheel-rail (W-R) contact using thermo-mechanical measurements and study the effects of heating on the characteristics of W-R contact under different creepages.

This study developed an implicit-explicit finite element (FE) model which could solve both partial slip and full sliding problems by setting different angular velocities on the wheels. Based on the model, four material types under six different creepages were simulated.

The results showed that frictional heating significantly affected the residual stress distribution under large creepage conditions. As creepage increased, the temperature of the wheel tread and rail head rose and the peak value was located at the trailing edge of the contact patch.

The proposed FE model could reduce computational time and thus cost to about one-third of the amount commonly found in previous literature. Compared to other studies, these results are in good agreement and offer a reasonable alternative method for analyzing W-R contact under various conditions.

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-07-2019-0298

The purpose of this study is to prepare thermal transfer ribbons with good alcohol resistance.

A variety of alcohol-resistant thermal transfer inks were prepared using different polyester resins. The printing temperature, printing effect, adhesion and alcohol resistance of the inks on the label were studied to determine the feasibility of using the ink for manufacturing thermal transfer ribbons. The ink formulations were prepared by a simple and stable grinding technology, and then use mature coating technology to make the ink into a thermal transfer ribbon.

The results show that the thermal transfer ink has good scratch resistance, good alcohol resistance and low printing temperature when the three resins coexist. Notably, the performance of the ribbon produced by 500 mesh anilox roller was better than that of other meshes. Specifically, the ink on the matte silver polyethylene terephthalate (PET) label surface was wiped with a cotton cloth soaked in isopropyl alcohol under 500 g of pressure. After 50 wiping cycles, the ink remained intact.

The proposed method not only ensures good alcohol resistance but also has lower printing temperature and wider label applicability. Therefore, it can effectively reduce the loss of printhead and reduce production costs, because of the low printing temperature.

This paper aims to study the Gramian solutions and solitonic interactions of a (2 + 1)-dimensional Broer–Kaup–Kupershmidt (BKK) system, which models the nonlinear and dispersive long gravity waves traveling along two horizontal directions in the shallow water of uniform depth.

Pfaffian technique is used to construct the Gramian solutions of the (2 + 1)-dimensional BKK system. Asymptotic analysis is applied on the two-soliton solutions to study the interaction properties.

N-soliton solutions in the Gramian with a real function ζ(y) of the (2 + 1)-dimensional BKK system are constructed and proved, where N is a positive integer and y is the scaled space variable. Conditions of elastic and inelastic interactions between the two solitons are revealed asymptotically. For the three and four solitons, elastic, inelastic interactions and soliton resonances are discussed graphically. Effect of the wave numbers, initial phases and ζ(y) on the solitonic interactions is also studied.

Shallow water waves are studied for the applications in environmental engineering and hydraulic engineering. This paper studies the shallow water waves through the Gramian solutions of a (2 + 1)-dimensional BKK system and provides some phenomena that have not been studied.

The purpose of this paper is to propose a new combined finite-discrete element method (FDEM) to analyze the mechanical properties, failure behavior and slope stability of soil rock mixtures (SRM), in which the rocks within the SRM model have shape randomness, size randomness and spatial distribution randomness.

Based on the modeling method of heterogeneous rocks, the SRM numerical model can be built and by adjusting the boundary between soil and rock, an SRM numerical model with any rock content can be obtained. The reliability and robustness of the new modeling method can be verified by uniaxial compression simulation. In addition, this paper investigates the effects of rock topology, rock content, slope height and slope inclination on the stability of SRM slopes.

Investigations of the influences of rock content, slope height and slope inclination of SRM slopes showed that the slope height had little effect on the failure mode. The influences of rock content and slope inclination on the slope failure mode were significant. With increasing rock content and slope dip angle, SRM slopes gradually transitioned from a single shear failure mode to a multi-shear fracture failure mode, and shear fractures showed irregular and bifurcated characteristics in which the cut-off values of rock content and slope inclination were 20% and 80°, respectively.

This paper proposed a new modeling method for SRMs based on FDEM, with rocks having random shapes, sizes and spatial distributions.

Against the background of industrialisation and modernisation of agriculture, food production issues and environmental hazards have become more and more obvious and consumers are increasingly concerned about food safety and health, which is strengthening demand for organic food. E-commerce provides a new channel for sales. Research on consumer trust in online organic food sales is the basis of network marketing. The paper aims to discuss these issues.

A laboratory experiment was used to empirically test the effects of media richness on consumers’ trust and the moderating effect of online review length. A 2×2 factorial design (i.e. two types of online product presentation formats (between-subject)×two levels of online review lengths (between-subject)) was used.

Media richness has a significant positive effect on consumers’ trust and that this effect is moderated by online review length. Meanwhile, perceived risk conveys the interaction effect of the media richness of online product presentation and online review length to trust.

E-commerce websites should aim to promote organic food by using a variety of online product presentation formats and by presenting high quality online reviews in order to reduce consumers’ perceived risk and improve their degree of trust when buying online.

This paper provides a new insight into consumers’ attitude of buying organic food online. The results of the research could provide proposals for promoting organic food sales online.

Product variant design can only be achieved after all its constituent parts have been implemented by variant design. It is necessary to plan the sequence of part variant design reasonably. The product variant design process involves a large amount of information transfer events at the dimensional level. A reasonable product variant design process needs to make full use of the information transfer characters of parts to decrease the uncertainty of product variant design process. The existing methods of researching the product variant design process mainly focus on resource constraint and activity logic. They are deficient, however, in information transfer resolution and uncertainty management. This paper aims to address these issues.

This paper identifies the number of dimension transfer paths and the position of dimension locating within a transfer path as being the key factors affecting the information transfer role of dimension. Information transfer utility is proposed to measure the information transfer capability of dimensions and parts. Based on these, a two-stage approach of generating the sequence of part variant design based on information transfer utility is proposed.

The uncertainty of dimension constraint network is minimal during the product variant design process when parts are implemented by variant design under the sequence generated through a two-stage method based on the information transfer utilities of parts, as does the times of parameter transferring and iteration in dimension constraint network.

Part variant design under the sequence of descending information transferring utilities can decrease the difficulty of implementing product variant design validly and also increase the efficiency. This suggests an innovative method to planning the product variant design process reasonably from the perspective of informatics.

While robots have increasingly threatened frontline employees’ (FLEs) future employment by taking over more mechanical and analytical intelligence tasks, they are still unable to “experience” and “feel” to occupy empathetic intelligence tasks that can be handled better by FLEs. This study, therefore, aims to empirically develop and validate a scale measuring the new so-called empathetic creativity as being creative in practicing and performing empathetically intelligent skills during service encounters.

This study adopts a multistage design to develop the scale. Phase 1 combines a literature review with text mining from 3,737 service robots-related YouTube comments to generate 16 items capturing this new construct. Phase 2 assesses both face and content validity of those items, while Phase 3 recruits Prolific FLEs sample to evaluate construct validity. Phase 4 checks this construct’s nomological validity using PLS-SEM and Phase 5 experiments dedicated effort (vs natural talent) as an effective approach to foster FLEs’ perceived empathetic creativity.

The final scale is comprised of 13 refined items that capture three dimensions (social, interactive and emotional) of empathetic creativity. This research provides timely implications to help FLEs in high-contact services stay competitive.

This study introduces the new construct of empathetic creativity, which goes beyond the traditional definition of creativity in services and highlights the importance of empathetic intelligence for FLEs in future employment. This study also develops a multi-item scale to measure this construct, which can be applied to future service management research.

The present situation is marked by the threat of COVID-19 pandemic on entire humankind and researchers across the globe are looking forward to vaccines or medicines to tackle COVID-19. However, according to the scholars and health-care agencies, vaccines alone would not be of much help and in the longer run adhering to the physical distancing policy along with sanitation could be the only solution. Moreover, extant studies across different areas have noted a positive association between various human psychological factors and prosocial behaviours. Additionally, an empirical study undertaken in the western context has tried exploring the association between human psychological factors and physical distancing behaviour (a kind of prosocial behaviour) in the COVID-19 context. The results of the extant study seem intriguing and encouraging enough to undertake a more robust exploratory study in this developing area. Against this background, this study aims to explore the relationship between individuals’ mindfulness and physical distancing behaviour, along with the mediating role of empathy during the COVID-19 pandemic.

To achieve the study objectives, this study has used an online survey method and has collected responses from the general adult population in India spread across all six regions. The survey was conducted during May 2020 when India was under a nationwide lockdown to mitigate the risk of COVID-19 pandemic. The respondents were identified based on convenience and snowball sampling techniques. Using social media platforms, the prospective respondents were contacted through WhatsApp, LinkedIn and Facebook or e-mails. Post data cleaning, a total of 315 responses were found to be suitable for analysis. For analysis, confirmatory factor analysis was conducted to establish the validity and reliability of the conceptual model, whereas Pearson correlation was undertaken to study the relationship between variables and mediation was examined using the PROCESS macro of Hayes.

The findings were encouraging and could become the foundation stone for further research and a practical guide for policymakers, agencies working in the health-care areas and even corporate leaders. As expected, an individual’s mindfulness was noted to be positively-related and influencing physical distancing behaviour. The mediation analysis indicated the intervening role of empathy in the association between an individual’s mindfulness and physical distancing behaviour.

The findings of the present could be a game-changer in restricting the spread of the COVID-19 pandemic. As espoused by various scholars, as well as health-care organizations about the use of physical distancing in mitigating the risk of COVID-19, policymakers, health-care authorities and even corporate leaders could look forward to strategizing and execute the dissemination of various mindfulness-based programs among the individuals. These mindfulness-based programs, which could be disseminated offline and online through smartphones, could, in turn, help in positively influence physical distancing behaviour among the individuals leading to the success of physical distancing policy.

This study relates and extends the mechanism of mindfulness in influencing individuals’ physical distancing behaviour in the pandemic situation, notably the COVID-19 pandemic. Moreover, based on the “empathy-altruism hypothesis”, as well as Schwartz’s theory of fundamental values, the intervening role of empathy has been explored and the findings further helped in extended these two theories in the domain of pandemic.

This study could be the first to conceptualize and examine the human psychological factors, particularly the relationship and role of an individual’s mindfulness with physical distancing behaviour among the general public during the COVID-19 pandemic. Additionally, this could also be the first study to conceptualize and explore the intervening role of empathy in the relationship between an individual’s mindfulness and physical distancing behaviour. Moreover, in conceptualizing and exploring the relationship between an individual’s mindfulness and physical distancing behaviour, this study explored and extended the “reperceiving” mechanism of mindfulness and the “empathy-altruism hypothesis” along with Schwartz’s theory of fundamental values in the domain of pandemic.

The purpose of this study is to explore the impact of social media use on both empathy and well-being through using a five-factor model (FFM) of personality in the context of Saudi Arabia.

Data were collected from the 13 regions in Saudi Arabia. Confirmatory factor analysis was used to measure the reliability and validity of the study’s constructs and a structural equation modeling technique was applied to test the study hypotheses.

With a sample of 450 users, the regression results indicate a less significant relationship between personality and social media use, as well as between personality and affective empathy, while a more significant relationship between personality and cognitive empathy. Also, individuals’ well-being are influenced directly by the heavy use of social media.

The cross-sectional design used in this research may not be able to provide the true essence of the hypothesized relationships compared to the cause-effect design. This study furthers the understanding of the role of personality on empathy and well-being in social media among Saudis from one side and provides insights to professionals for better improvement of social media and so better individuals’ well-being from the other side.

This paper fills an untapped gap in a developing country context by exploring the relationship between the usage of social media and the two dimensions of empathy, which, in turn, influence well-being under the theoretical lens of an FFM personality.