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1 – 8 of 8Heyao Yu, Cass Shum, Michelle Alcorn, Jie Sun and Zhaoli He
There has been a dramatic increase in the adoption of service robots in hotels, potentially replacing the human workforce. Drawing on Social Amplification of Risk Framework, this…
Abstract
Purpose
There has been a dramatic increase in the adoption of service robots in hotels, potentially replacing the human workforce. Drawing on Social Amplification of Risk Framework, this study aims to examine the moderating effect of transformational leadership on the indirect relationships between Gen Z employees’ tech-savviness and social skills on industry turnover intention via service robot risk awareness (SRRA).
Design/methodology/approach
This study collected two-wave time-lagged multilevel data of 281 frontline Gen Z hotel employees from 54 departments in China. Participants were asked to rate their tech-savviness, social skills and SRRA in the first survey. They rated their supervisor’s transformational leadership and industry turnover intention one week later.
Findings
Multilevel path analysis results showed SRRA mediates the negative indirect relationship of Gen Z employee’s tech-savviness and social skills on industry turnover intention. Transformational leadership weakened the positive effect of SRRA on industry turnover intention.
Originality/value
This study contributes to the growing literature on service robots by investigating the antecedents and outcomes of employees’ SRRA. To the best of the authors’ knowledge, it is one of the first empirical studies investigating the role of leadership to mitigate the negative consequences of employee’s SRRA. Managers can use the results of this study to implement training programs and ensure that employees and service robots successfully coexist in the workplace.
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Gaojie Liu and Zhaoli Guo
The purpose of this paper is to investigate, numerically, the effects of the Prandtl number on the mixing process in two‐dimensional Rayleigh‐Taylor instability of incompressible…
Abstract
Purpose
The purpose of this paper is to investigate, numerically, the effects of the Prandtl number on the mixing process in two‐dimensional Rayleigh‐Taylor instability of incompressible and miscible fluids.
Design/methodology/approach
The simulations are carried out based on a double‐distribution‐function lattice Boltzmann method in which the Prandtl number can be adjusted.
Findings
The simulations reveal that the mixing‐zone grows inversely with increasing Prandtl number, but the processes of Rayleigh‐Taylor instability are nearly identical in terms of a dimensionless time as the Prandtl number ranges from 0.1 to 10. The symmetric property of the mixing‐zone is also studied, which is found to be closely dependent on the symmetry of the initial perturbations.
Originality/value
The results here show that the growth of the mixing‐zone is related to the Prandtl number, whereas most previous studies have been focused on the relationship between the growth of the mixing zone and time with a constant Prandtl number.
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Yen-Chiang Chang and Mehran Idris Khan
This study aims to explore why marine development and maritime security in Pakistan are significant and what the Chinese concerns are. Therefore, the objective of this research is…
Abstract
Purpose
This study aims to explore why marine development and maritime security in Pakistan are significant and what the Chinese concerns are. Therefore, the objective of this research is to analyse a growing Pak–China bilateral interests, particularly at Gwadar, to achieve the geostrategic objectives of China–Pakistan Economic Corridor (CPEC).
Design/methodology/approach
The study adopts a qualitative means to discuss the significance of China’s ambitions towards the CPEC project concerning strategic deep-sea management and maritime regulations in the region, with a particular focus on the Gwadar Port.
Findings
The paper concludes that the Gwadar Port is a critical element for maritime security in the whole region. The study also provides an analysis of national and international, security and legal challenges associated with CPEC.
Originality/value
Most of the potential outcomes have already been discussed in public, though a limited academic discussion is available on the legal aspects. It is particularly so with regard to the development and capacity building in the maritime sector of Pakistan under this project. This study aims to explore why marine development and maritime security in Pakistan is significant and what the Chinese concerns are.
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Yogarajah Nanthagopan, Nigel Williams and Karen Thompson
The purpose of this paper is to understand and identify the nature of evaluation criteria, levels and associations among levels of project success in development projects by NGOs…
Abstract
Purpose
The purpose of this paper is to understand and identify the nature of evaluation criteria, levels and associations among levels of project success in development projects by NGOs in Sri Lanka.
Design/methodology/approach
The setting for this study is Sri Lanka, a country currently recovering from civil war and natural disasters and host to a large number of national and international NGOs involved in development projects. Data collection was conducted using a quantitative survey which obtained 447 responses. Multivariate analysis of data was conducted using confirmatory factor analysis and structural equation modelling.
Findings
The study confirmed that overall project success in NGOs could be assessed in three levels: project management (PM) success, project success and NGO success. The results conclude that there are strong associations among the three levels of project success; moreover, PM success and project success are indispensable for achieving NGO success.
Originality/value
This study extends existing research to confirm the presence of the three levels of project success and the interconnections among them. These findings can support subsequent research on development projects and also support the design of holistic evaluation tools to support project practices in NGOs.
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Fei Shang, Bo Sun and Dandan Cai
The purpose of this study is to investigate the application of non-destructive testing methods in measuring bearing oil film thickness to ensure that bearings are in a normal…
Abstract
Purpose
The purpose of this study is to investigate the application of non-destructive testing methods in measuring bearing oil film thickness to ensure that bearings are in a normal lubrication state. The oil film thickness is a crucial parameter reflecting the lubrication status of bearings, directly influencing the operational state of bearing transmission systems. However, it is challenging to accurately measure the oil film thickness under traditional disassembly conditions due to factors such as bearing structure and working conditions. Therefore, there is an urgent need for a nondestructive testing method to measure the oil film thickness and its status.
Design/methodology/approach
This paper introduces methods for optically, electrically and acoustically measuring the oil film thickness and status of bearings. It discusses the adaptability and measurement accuracy of different bearing oil film measurement methods and the impact of varying measurement conditions on accuracy. In addition, it compares the application scenarios of other techniques and the influence of the environment on detection results.
Findings
Ultrasonic measurement stands out due to its widespread adaptability, making it suitable for oil film thickness detection in various states and monitoring continuous changes in oil film thickness. Different methods can be selected depending on the measurement environment to compensate for measurement accuracy and enhance detection effectiveness.
Originality/value
This paper reviews the basic principles and latest applications of optical, electrical and acoustic measurement of oil film thickness and status. It analyzes applicable measurement methods for oil film under different conditions. It discusses the future trends of detection methods, providing possible solutions for bearing oil film thickness detection in complex engineering environments.
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This paper discusses how peer pressure works and how to use it in a positive way to encourage employees to behave in ways that are beneficial to the organization.
Abstract
Purpose
This paper discusses how peer pressure works and how to use it in a positive way to encourage employees to behave in ways that are beneficial to the organization.
Design/methodology/approach
This viewpoint is prepared by an independent writer offering practical suggestions to improve employee compliance by applying academic theory.
Findings
Organizations can create positive peer pressure through institutionalized socialization tactics that set clear expectations for behavior. These expectations become ingrained in culture leading to employees acting as “enforcers” of cultural values.
Originality/value
This article saves executives and researchers hours of reading time by presenting decades of research in a condensed and easy-to-read format.
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Xilian Wang, Baoming Ge and Jin Wang
The novel bearingless switched reluctance motor (BSRM) is proposed recently, which is different from the conventional BSRM in the stator structure and suspension winding…
Abstract
Purpose
The novel bearingless switched reluctance motor (BSRM) is proposed recently, which is different from the conventional BSRM in the stator structure and suspension winding arrangement. The reduced number of suspension windings makes the novel BSRM much simpler, so that the control circuit and algorithm are greatly simplified when compared to those of the conventional BSRM. This paper for the first time proposes the novel BSRM's analytic model, including the mathematical relationships among the winding currents, rotor angle, radial forces, and motor torque, to further achieve the suspending forces and torque control. The paper aims to discuss these issues.
Design/methodology/approach
The magnetic equivalent circuit method is employed to obtain the self-inductances and mutual-inductances of the motor torque windings (main windings) and suspension windings (control windings). The straight flux paths are combined with the elliptical fringing flux paths to calculate the air-gap permeances, and the stored magnetic energy. Then, the mathematical expressions of radial forces and torque are derived. A novel BSRM prototype is analyzed through using the proposed analytical model and the finite element model. The results of both methods are compared to verify the proposed mathematical model.
Findings
The proposed mathematical model of the novel BSRM considering unsaturated magnetic circuits is verified by finite-element analysis results.
Research limitations/implications
The mathematical model represents the situation of magnetic circuit unsaturated and is not suitable for the magnetic circuit saturation. It cannot be used to control the motor which is working in the deep magnetic circuit saturation region.
Practical implications
Building mathematical model is a necessary step for the motor's suspension and rotating control. The built model provides the fundamental for the preliminary control algorithm and experimental study of this novel BSRM.
Originality/value
For the first time, the novel BSRM's mathematical model is proposed. It provides necessary fundamental for the motor's further analysis, design, and suspending and rotating controls.
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Mountains provide more than 40% of global goods and services. The ecosystem services arising from the Hindu Kush-Himalayas (HKH) in the form of water, biodiversity and niche…
Abstract
Mountains provide more than 40% of global goods and services. The ecosystem services arising from the Hindu Kush-Himalayas (HKH) in the form of water, biodiversity and niche products, hydroelectricity, timber, mineral resources, and recreation are enormous. The HKH region is enriched by a diversity of cultures, ethnic groups, and traditional knowledge systems. Thus, it is a paradox that, in spite of rich natural resources and cultures, poverty is rampant. Additionally, the HKH is a hotspot for climate change impacts, but the region has been identified as a data deficient during the 2007 assessment report of the Intergovernmental Panel on Climate Change (IPCC). Since then, some progress has been made to fill the data gap, specifically relating to biodiversity, cryosphere, and climate change. This chapter introduces the HKH region and elaborates the need for modeling in the context of dealing with climate change.
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