Qinxuan Gu, Dongqing Hu and Paul Hempel
Drawing on the motivated information processing in groups (MIP-G) model, the purpose of this paper is to explore the relationship between team reward interdependence and team…
Abstract
Purpose
Drawing on the motivated information processing in groups (MIP-G) model, the purpose of this paper is to explore the relationship between team reward interdependence and team performance, treating shared leadership as a mediator and team average job-based psychological ownership as a moderator.
Design/methodology/approach
Data were collected from a field sample of 72 knowledge-based work teams comprised of 466 team members and their team leaders. Data were analysed using hierarchical regression analysis and moderated path analysis.
Findings
Team reward interdependence was positively related to team performance through shared leadership. Team average job-based psychological ownership moderated both the relationship between team reward interdependence and shared leadership, and the indirect relationship between team reward interdependence and team performance.
Research limitations/implications
The shared leadership literature is extended by exploring the antecedents of shared leadership from the perspective of team incentives and by examining the moderating role of team average job-based psychological ownership.
Practical implications
Organizations and managers should pay attention to team pay system design and be aware of the importance of employees’ psychological ownership toward their jobs in promoting shared leadership in teams.
Originality/value
This study sheds light on the antecedents of shared leadership from motivated information processing perspective and examines antecedent boundary conditions through the moderating role of team average job-based psychological ownership.
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Ruyue Han, Xingmei Li, Zhong Shen and Dongqing Jia
The consideration of the substitution phenomenon in the project portfolio selection problem can improve the robustness of project portfolio selection and help enterprises better…
Abstract
Purpose
The consideration of the substitution phenomenon in the project portfolio selection problem can improve the robustness of project portfolio selection and help enterprises better achieve their strategic objectives. However, the existence of inter-project risk propagation will have a negative impact on project substitution. This paper proposes a new framework for project portfolio selection and constructs a risk propagation model based on strategic objectives to study the impact of risk propagation on substitution in the project portfolio.
Design/methodology/approach
The authors first construct a risk propagation model based on strategic objectives to describe the risk propagation between projects. Then the project substitution phenomenon based on risk propagation is put forward, and the calculation method of substitution loss is given. Finally, a robust project portfolio selection framework based on strategic objectives considering risk propagation is constructed.
Findings
The analysis of a case study demonstrates that (1) With the increase of risk intensity, the strategic loss of the same project portfolio increases linearly, and under the same risk intensity, the more projects in the portfolio, the stronger the robustness. (2) Considering risk propagation, the effect of project substitution is significantly weakened, and the strategic loss rate of the project portfolio is significantly increased compared with that of a direct attack.
Originality/value
This study is the first to take the project substitution into account in the project portfolio selection process. Moreover, the authors describe inter-project risk propagation and analyze the impact of risk propagation on the project substitution phenomenon. Finally, the authors extend the evaluation index of robustness. This paper puts forward a new way to solve the problem of project portfolio selection.
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Jo-Yun Li, Yeunjae Lee and Dongqing Xu
The purpose of this paper is to explore how the excellent practice of public relations concerning strategic internal communication may help empower female employees to cope with…
Abstract
Purpose
The purpose of this paper is to explore how the excellent practice of public relations concerning strategic internal communication may help empower female employees to cope with workplace gender discrimination. It constructs and empirically tests a theoretical model that investigates the role of transparent internal communication on diversity and inclusion in shaping female employees' sense of empowerment, and that empowerment may affect how they cope with such problems in the workplace.
Design/methodology/approach
An online survey was conducted with 402 full-time female employees in large-sized organizations in the United States. Structural equation models were conducted to test the proposed measurement model and hypothesized model.
Findings
The findings of this study offer support for the proposed model that featuring transparent internal communication regarding workplace gender discrimination increases female employees' empowerment to tackle the problems, which in turn encourages them to adopt problem-focused coping and participate in collective coping behaviors.
Research limitations/implications
Excellent internal communication not only facilitates organization-employee relationships as prior research widely demonstrated, but, according to the findings of this study, also creates a sense of empowerment among female employees, which encourage them to proactively address workplace gender discrimination issue.
Practical implications
Organizations should practice transparent communication regarding diversity and inclusion, ensuring employees receive sufficient information, clear guidelines, and opportunities to voice as well as aim to develop empowerment interventions that help employees address discrimination issues in the workplace.
Originality/value
To the best of the author's knowledge, this study is among the first empirical studies that present the importance of strategic internal communication, particularly transparent communication, in facilitating gender equality in the workplace.
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The current study investigated the impact of organisational trust on emotional well-being and performance of middle leaders during the coronavirus disease 2019 (COVID-19) pandemic.
Abstract
Purpose
The current study investigated the impact of organisational trust on emotional well-being and performance of middle leaders during the coronavirus disease 2019 (COVID-19) pandemic.
Design/methodology/approach
A convenience sample of 265 middle leaders in kindergartens in China responded involving trust in schools (e.g. trust in principal and trust in colleagues), emotional well-being and job performance. Both confirmatory factor analysis and structural equation modelling (SEM) were used in the investigation.
Findings
Three hypotheses on the relationships between the three constructs were verified. Trust in schools significantly influenced emotional well-being and job performance of middle leaders which correlated with each other. The interactive effects of trust in principal and trust in colleagues were discussed for improving the well-being and job performance of middle leaders. Relationships between the two kinds of trust and pride were also identified in the research.
Research limitations/implications
Further studies may put efforts towards improving these three outcomes synchronously.
Practical implications
Based on the evidence of the current study, future research may focus on how middle leaders act as a bridging role between different stakeholders such as principal and teachers, principal and parents, teachers and children, meanwhile how to boost the leaders' own well-being and performance in the early childhood education (ECE).
Originality/value
This study established the empirical linkages between school trusts, emotional well-being and job performance.
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Zhen Zhou, Dongqing Wang and Boyang Xu
The purpose of this paper is to explore a multi-innovation with forgetting factor-based EKF-SLAM (FMI-EKF-SLAM) algorithm to solve the error increasing problem, caused by the…
Abstract
Purpose
The purpose of this paper is to explore a multi-innovation with forgetting factor-based EKF-SLAM (FMI-EKF-SLAM) algorithm to solve the error increasing problem, caused by the Extended Kalman filtering (EKF) violating the local linear assumption in simultaneous localization and mapping (SLAM) for mobile robots because of strong nonlinearity.
Design/methodology/approach
A multi-innovation with forgetting factor-based EKF-SLAM (FMI-EKF-SLAM) algorithm is investigated. At each filtering step, the FMI-EKF-SLAM algorithm expands the single innovation at current step to an extended multi-innovation containing current and previous steps and introduces the forgetting factor to reduce the effect of old innovations.
Findings
The simulation results show that the explored FMI-EKF-SLAM method reduces the state estimation errors, obtains the ideal filtering effect and achieves higher accuracy in positioning and mapping.
Originality/value
The method proposed in this paper improves the positioning accuracy of SLAM and improves the EKF, so that the EKF has higher accuracy and wider application range.
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Dongqing Liu, Bo Zheng and Pengcheng Yan
The purpose of this paper is to put forward a method which uses a computer to make a large number of simulated tests and determine the reference value of a system reliability…
Abstract
Purpose
The purpose of this paper is to put forward a method which uses a computer to make a large number of simulated tests and determine the reference value of a system reliability index according to a unit reliability index.
Design/methodology/approach
At the beginning of conducting an index demonstration and development on a new system, its unit reliability index can already reflect the unit reliability level accurately. Based on this characteristic, this index is used as the confidence lower limit of single side estimated in the unit reliability interval to find the failure distribution law of the unit. On this basis, a great number of simulated tests are made by a computer to calculate the unit failure number and reliability point estimated value every test.
Findings
The confidence lower limit of single side estimated in the system reliability interval is found by counting up the simulated test data of these units.
Research limitations/implications
Availability of data is the main limitation regarding which model will be applied.
Practical implications
A useful advice for system reliability analysis and calculation.
Originality/value
This paper presents a new approach of system reliability analysis.
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Xingxing Zu, Huaming Zhou, Xiaowei Zhu and Dongqing Yao
The purpose of this study is to investigate the underlying characteristics that influence quality management implementation at manufacturing companies operating in China.
Abstract
Purpose
The purpose of this study is to investigate the underlying characteristics that influence quality management implementation at manufacturing companies operating in China.
Design/methodology/approach
The data of this study were based on 199 manufacturing companies collected from a cross‐sectional survey in China. The cultural profiles of these companies were identified through cluster analysis. Multivariate analysis of variance was conducted to identify the effects of operating characteristics and cultural profile on the implementation level of quality management practices.
Findings
The results show that in general, there is no significant difference in implementing quality management practices among companies of different operating characteristics in terms of company size, industry, ownership, and production process. This study reveals that cultural profile is a distinguishing factor to explain the difference in quality management implementation among the companies.
Originality/value
As China is becoming an important supplier of products to the global market, it is necessary to understand how product quality is controlled and managed in China. This study examines the effects of operating and cultural characteristics of companies in China on their implementation of quality management practices. The results contribute to a deeper understanding of how to build an effective quality system at companies in China.
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Tang Ying and Li Wan‐Qing
The purpose of this paper is to introduce trench termination for high power buried‐gate static induction transistor (SIT) comprising three parts, which can inhibit the reverse…
Abstract
Purpose
The purpose of this paper is to introduce trench termination for high power buried‐gate static induction transistor (SIT) comprising three parts, which can inhibit the reverse leakage current substantially and paradisaical current. The simplified step‐etching process will also be discussed in detail.
Design/methodology/approach
For power buried‐gate SIT, the trench termination comprises three grooves, gate electrode etching, mesa‐groove etching and the separated groove, respectively. The simplified step‐etching process is proposed to optimize the traditional technical processing.
Findings
The tripartite trench termination of power SIT can inhibit the reverse leakage current, improve the gate‐source breakdown and increase the blocking voltage. The step‐etching process which is proposed for the first time, realizes the tripartite trench termination simultaneously which simplifies the traditional processes and is beneficial by protecting the surface of the die. The optimum etched depth of termination is also presented with experimentations.
Originality/value
The tripartite trench termination of power SIT is novel and the step‐etching process is also proposed for the first time.
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Keywords
Runyao Yu, Xingwang Bai, Xueqi Yu and Haiou Zhang
A new wire arc additive manufacturing (WAAM) process combined with gravity-driven powder feeding was developed to fabricate components of tungsten carbide (WC)-reinforced iron…
Abstract
Purpose
A new wire arc additive manufacturing (WAAM) process combined with gravity-driven powder feeding was developed to fabricate components of tungsten carbide (WC)-reinforced iron matrix composites. The purpose of this study was to investigate the particle transportation mechanism during deposition and determine the effects of WC particle size on the microstructure and properties of the so-fabricated component.
Design/methodology/approach
Thin-walled samples were deposited by the new WAAM using two WC particles of different sizes. A series of in-depth investigations were conducted to reveal the differences in the macro morphology, microstructure, tensile performance and wear properties.
Findings
The results showed that inward convection and gravity were the main factors affecting WC transportation in the molten pool. Large WC particles have higher ability than small particles to penetrate into the molten pool and survive severe dissolution. Small WC particles were more likely to be completely dissolved around the top surface, forming a thicker region of reticulate (Fe, W)6C. Large WC particles can slow down the inward convection more, thereby leading to an increase in width and a decrease in the layer height of the weld bead. The mechanical properties and wear resistance significantly increased owing to reinforcement. Comparatively, samples with large WC particles showed inferior tensile properties owing to their higher susceptibility to cracks.
Originality/value
Fabricating metal matrix composites through the WAAM process is a novel concept that still requires further investigation. Apart from the self-designed gravity-driven powder feeding, the unique aspects of this study also include the revelation of the particle transportation mechanism of WC particles during deposition.