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The paper aims to study the effect of sintering temperature on the microstructure, shear strength and ratcheting fatigue life of nanosilver sintered lap shear joint. In addition, the Gerber model is used to predict the ratcheting fatigue lives of nanosilver sintered lap shear joints at different sintering temperatures.

In this paper, the nanosilver sintered lap shear joints were prepared at three sintering temperatures of 250 °C, 280 °C and 310 °C. The bonding quality was characterized by scanning electron microscopy, X-ray diffraction, transmission electron microscope and shear tests, and the long-term reliability was studied by conducting ratcheting fatigue tests. In addition, three modified models based on Basquin equation were used to predict the ratcheting fatigue life of nanosilver sintered lap shear joint and their accuracies were evaluated.

When the sintering temperature is 250°C, the nanosilver sintered lap shear joint shows the porosity of 22.9 ± 1.6 %, and the shear strength of 22.3 ± 2.4 MPa. Raising the sintering temperature enhances silver crystallite size, strengthens sintering necks, thus improves shear strength and ratcheting fatigue life in joints. In addition, the ratcheting fatigue lives of the joints sintered at different temperatures are effectively predicted by three equivalent force models, and the Gerber model shows the highest life prediction accuracy.

The sintered silver bondline is suffering a complex stress state. The study only takes the shear stress into consideration. The tensile stress and the combination of shear stress and tensile stress can to be considered in the future study.

The paper provides the experimental and theoretical support for robust bonding and long-term reliability of sintered silver structure.

The introduced model can predict the ratcheting fatigue lives of the joints sintered at different temperatures, which shows a potential in engineering applications.

The study revealed the relationship between the sintering temperature and the microstructure, the shear strength and the ratcheting fatigue life of the joint. In addition, the Gerber model can predict the ratcheting fatigue life accurately at different sintering temperatures.

Beijing is becoming one of the top global destinations but the number of international tourists to the city has been declining recently. By analyzing inbound tourists experience in Beijing and identifying the relationship between the destination attributes and satisfaction, the purpose of this paper is to provide important insights into city tourism research and city destination development.

This study used an online deductive approach and collected 1,254 reviews on TripAdvisor referencing major attractions in Beijing. This study used the Leximancer software to analyze the content of the reviews and to identify the underlying relationships.

The results showed that international tourists’ experience in Beijing can be reflected via five aspects: attractions, city, transportation, service and people. The results further indicated that the major concern of international tourists visiting Beijing related to the service quality on site.

This study explored inbound tourists experience in Beijing using an online deductive approach. Practical implications were provided with respect to improving international tourists experience in Beijing and enhancing their satisfaction and revisiting intentions.

Crisis communication is an essential component of crisis management in hospitality and tourism. Yet few studies have offered a clear impression of the state of knowledge in this area. As one of the early conceptual attempts, this study aims to contribute to the existing knowledge by analyzing, comparing and synthesizing the literature in crisis communication and hospitality and tourism research. This study also proposes a transactional and dynamic crisis communication model that lays the conceptual foundation for future research.

This study was guided by a theory synthesis approach and analyzed the related literature. More specifically, this study conducted a rapid review of the general crisis communication research and a conventional, systematic review of crisis communication research in hospitality and tourism. Based on the review findings, this study further develops a transactive and dynamic crisis communication model in hospitality and tourism, which is fundamental for future studies in this area.

The findings of this study are presented through a literature review of general crisis communication research and crisis communication research in hospitality and tourism and the development of a transactive and dynamic crisis communication model in hospitality and tourism.

This study reviews the literature and develops an integrated model for crisis communication in hospitality and tourism. The findings of this study lay the conceptual foundation for crisis communication in hospitality and tourism and reveal future research venues.

By offering a state-of-the-art review and developing an integrated conceptual model, the findings of this study can help bridge the gaps between academics and practices as well as serve as references for practitioners to identify and develop effective crisis responses.

This paper represents an early effort to review crisis communication research in hospitality and tourism and conceptualize the subject area through an integrated model. The findings of this study contribute to the further conceptual development of crisis communication in hospitality and tourism.

The purpose of this paper is to examine the underlying mechanism through which high-performance work system (HPWS) influences employee creativity. In addition, this paper aims to examine contingent factors in the relationship between perceived organisational support and employee creativity.

The sample of the study included 268 employees and matched supervisors from two pesticide chemical companies in China. Hypotheses were tested with linear regressions.

The study shows that HPWS enhances perceived organisational support, which in turn promotes employee creativity. Moreover, the results also indicate that devolved management positively moderates the relationship between perceived organisational support and employee creativity.

The unique environment of China may limit the generalisability of the findings. Future studies can extend these findings by conducting studies in other societal contexts.

When trying to inspire employee creativity, organisations need to pay attention to employees’ perception of organisational support. One way of enhancing perceived organisational support is to implement HPWS. In addition, organisations need to encourage devolved management in order to inspire more creative behaviours.

This is the first study that explores the mediating role of perceived organisational support in the HPWS-employee creativity linkage. In addition, the study provides what is believed to be the first test of the moderating role of devolved management.

Diasporas represent a unique yet often overlooked stakeholder in tourism crisis management. Their strong bonds with their homeland often result in continued engagement with an extended community, which is valuable to their homeland during unsettling times. This study aims to examine the engagement of the Indonesian diaspora in the USA to revive tourism in Indonesia during the early stages of the COVID-19 pandemic and their motivation behind such efforts.

This study is rooted in a social constructivism paradigm and uses a qualitative approach. Four focus groups (n = 25) and ten individual interviews with the Indonesian diaspora in the USA were conducted. Thematic analysis was used to identify major themes.

The findings indicate that diaspora engagement stemmed from two broad categories: social activism, such as information liaison, skills and knowledge transfer, and economic activism, including philanthropic activities, investment and remittance and return-home travel. Both altruistic and social exchange motives drive their continuous engagement. The findings exemplify “diaspora diplomacy” that can be harnessed as social capital for homeland tourism recovery post-crisis.

This study provides an in-depth analysis of diaspora engagement in destination recovery. This study highlights the importance of diasporas as social capital for destinations and offers insights into tourism crisis management by incorporating this overlooked stakeholder group.

侨民是旅游管理中一个独特但经常被忽视的利益相关群体。他们与祖国的紧密联系往往让他们团结在一起成为一个扩展社区, 并对于旅游目的地的灾后复苏做出贡献。本文通过实证研究来探索印度尼西亚侨民在新冠初期对于印度尼西亚旅游业做出的贡献以及他们的动机。

本研究植根于社会建构主义范式并采用了定性方法。这个研究项目进行了四个焦点小组访谈和十个个人访谈。这个研究应用了主题分析方法来分析这些访谈数据。

调查结果表明, 侨民群体在经济和社会方面都参与了目的地恢复。他们参与的动机主要是来自于(1)社会行动主义, 例如信息、技能、和知识的分享, 以及（2）社会行动主义, 包括募捐, 投资, 汇款和回国旅行。除此以外, 利他主义和社会交换动机也推动了他们的持续参与活动。 这些研究结果也表明了“侨民外交”可以作为有效推动旅游目的地的灾后复苏。

本研究深入分析了侨民参与目的地恢复的情况。本研究强调了侨民作为目的地社会资本形式的重要性, 并通过整合这个被忽视的利益相关者群体为旅游危机管理提供了见解。

Este estudio se basó en el paradigma de constructivismo social y empleó un enfoque cualitativo. Se realizaron cuatro grupos focales (n = 25) y diez entrevistas individuales con emigrantes indonesios en Estados Unidos. Se utilizó el análisis temático para identificar los temas principales.

La dispersión de grupos humanos que abandonan su lugar de origen, también denominado, diáspora o emigrantes, representan un grupo único y, sin embargo, a menudo ignorado en la gestión del turismo. Sus fuertes lazos con su tierra natal a menudo dan como resultado una relación con una comunidad extendida, la cual es valiosa para su tierra natal durante tiempos difíciles. Este estudio examinó el rol de los emigrantes indonesios en Estados Unidos para revivir el turismo en Indonesia durante las primeras etapas de la pandemia de COVID-19 y su motivación detrás de esos esfuerzos.

Los hallazgos muestran que el rol de la diáspora provino de dos amplias categorías: 1) activismo social, como transferencia de información, transferencia de habilidades y conocimientos, y 2) activismo económico, incluidas actividades filantrópicas, inversión y remesas, y viajes de regreso a casa. Tanto los motivos altruistas como los de intercambio social son las causas de esta relación. Los hallazgos ejemplifican la “diplomacia de la diáspora” que puede ser aprovechada como capital social para la recuperación del turismo en tierra natal después de una crisis.

Este estudio ofrece un análisis profundo del rol de la diáspora en la recuperación del turismo. Este estudio destaca la importancia de los emigrantes como capital social para los destinos y ofrece información sobre el manejo de crisis turísticas mediante la incorporación de este interesante pero ignorado grupo.

Trajectory tracking error of robotic manipulator has limited its applications in trajectory tracking control systems. This paper aims to improve the trajectory tracking accuracy of robotic manipulator, so a linear-extended-state-observer (LESO)-based prescribed performance controller is proposed.

A prescribed performance function with the convergence rate, maximum overshoot and steady-state error is derived for the output error transformation, whose stability can guarantee trajectory tracking accuracy of the original robotic system. A LESO is designed to estimate and eliminate the total disturbance, which neither requires a detailed system model nor a heavy computation load. The stability of the system is proved via the Lyapunov theory.

Comparative experimental results show that the proposed controller can achieve better trajectory tracking accuracy than proportional-integral-differential control and linear active disturbance rejection control.

In the LESO-based prescribed performance control (PPC), the LESO was incorporated into the PPC design, it solved the problem of stabilizing the complex transformed system and avoided the costly offline identification of dynamic model and estimated and eliminated the total disturbance in real-time with light computational burden. LESO-based PPC further improved control accuracy on the basis of linear-active-disturbance-rejection-control. The new proposed method can reduce the trajectory tracking error of the robotic manipulators effectively on the basis of simplicity and stability.