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Article
Publication date: 1 June 2021

Yushen Wang, Wei Xiong, Danna Tang, Liang Hao, Zheng Li, Yan Li and Kaka Cheng

Traditional simulation research of geological and similar engineering models, such as landslides or other natural disaster scenarios, usually focuses on the change of…

Abstract

Purpose

Traditional simulation research of geological and similar engineering models, such as landslides or other natural disaster scenarios, usually focuses on the change of stress and the state of the model before and after destruction. However, the transition of the inner change is usually invisible. To optimize and make models more intelligent, this paper aims to propose a perceptible design to detect the internal temperature change transformed by other energy versions like stress or torsion.

Design/methodology/approach

In this paper, micron diamond particles were embedded in 3D printed geopolymers as a potential thermal sensor material to detect the inner heat change. The authors use synthetic micron diamond powder to reinforced the anti-corrosion properties and thermal conductivity of geopolymer and apply this novel geopolymer slurry in the direct ink writing (DIW) technique.

Findings

As a result, the addition of micron diamond powder can greatly influence the rheology of geopolymer slurry and make the geopolymer slurry extrudable and suitable for DIW by reducing the slope of the viscosity of this inorganic colloid. The heat transfer coefficient of the micron diamond (15 Wt.%)/geopolymer was 50% higher than the pure geopolymer, which could be detected by the infrared thermal imager. Besides, the addition of diamond particles also increased the porous rates of geopolymer.

Originality/value

In conclusion, DIW slurry deposition of micron diamond-embedded geopolymer (MDG) composites could be used to manufacture the multi-functional geological model for thermal imaging and defect detection, which need the characteristic of lightweight, isolation, heat transfer and wave absorption.

Article
Publication date: 18 October 2021

Danna Tang, Yushen Wang, Zheng Li, Yan Li and Liang Hao

The low-temperature sintering of silica glass combined with additive manufacturing (AM) technology has brought a revolutionary change in glass manufacturing. This study…

Abstract

Purpose

The low-temperature sintering of silica glass combined with additive manufacturing (AM) technology has brought a revolutionary change in glass manufacturing. This study aims to carry out in an attempt to achieve precious manufacturing of silicate glassy matrix through the method of slurry extrusion.

Design/methodology/approach

A low-cost slurry extrusion modelling technology is used to extrude silicate glassy matrix inks, composed of silicate glass powder with different amounts of additives. Extrudability of the inks, their printability window and the featuring curves of silicate glassy matrix are investigated. In addition, the properties of the low-temperature sintering green part as a functional part are explored and evaluated from morphology, hardness and colour.

Findings

The results showed that the particle size was mainly distributed from 1.4 µm to 5.3 µm, showing better slurry stability and print continuity. The parameters were set to 8 mm/s, 80% and 0.4 mm, respectively, to achieve better forming of three-dimensional (3D) samples. Besides, the organic binder removal step was concentrated on 200°C–300°C and 590°C–650°C was the fusion bonding temperature of the powder. The hardness values of 10 test samples ranged from 588 HL to 613 HL, which met the requirements of hard stones with super-strong mechanical strength. In addition, the mutual penetration of elements caused by temperature changes may lead to a colourful appearance.

Originality/value

The custom continuous AM technology enables the fabrication of a glass matrix with 3D structural features. The precise positioning technology of the glass matrix is expected to be applied more widely in functional parts.

Details

Rapid Prototyping Journal, vol. 28 no. 4
Type: Research Article
ISSN: 1355-2546

Keywords

Article
Publication date: 29 August 2019

Danna Tang, Liang Hao, Yan Li and Zheng Li

The study aims to explore the composition and microstructure of clay functionally graded materials under the process of double-gradient direct ink writing (DIW).

Abstract

Purpose

The study aims to explore the composition and microstructure of clay functionally graded materials under the process of double-gradient direct ink writing (DIW).

Design/methodology/approach

The investigation focused specifically on the pore characteristics of barite-kaolin clay composite after three-dimensional (3D) printing and sintering as well as its bionic application in geophysical model.

Findings

The model with pore and material variations brought about spatial and nonlinear mechanical properties. Moreover, the vertical gradient and connected pores in the upper kaolin part simulated the natural phenomenon of the landslide model (take Chinese Majiagou landslides as an example). Both the thermal debinding behavior and the kaolin powder particles characteristics [large pore volume (0.019 cm3g1) and pore size (29.20 nm)] were attributed to the interconnection channels.

Originality/value

Hence, the macroscopic and microscopic pores achieved by dual-gradient DIW process make it possible to control the permeability and details of properties, precisely in the geological model.

Details

Rapid Prototyping Journal, vol. 26 no. 1
Type: Research Article
ISSN: 1355-2546

Keywords

Book part
Publication date: 12 November 2016

Qihao He

Due to climate change and an increasing concentration of the world’s population in vulnerable areas, how to manage catastrophe risk efficiently and cover disaster losses…

Abstract

Purpose

Due to climate change and an increasing concentration of the world’s population in vulnerable areas, how to manage catastrophe risk efficiently and cover disaster losses fairly is still a universal dilemma.

Methodology

This paper applies a law and economic approach.

Findings

China’s mechanism for managing catastrophic disaster risk is in many ways unique. It emphasizes government responsibilities and works well in many respects, especially in disaster emergency relief. Nonetheless, China’s mechanism which has the vestige of a centrally planned economy needs reform.

Practical Implications

I propose a catastrophe insurance market-enhancing framework which marries the merits of both the market and government to manage catastrophe risks. There are three pillars of the framework: (i) sustaining a strong and capable government; (ii) government enhancement of the market, neither supplanting nor retarding it; (iii) legalizing the relationship between government and market to prevent government from undermining well-functioning market operations. A catastrophe insurance market-enhancing framework may provide insights for developing catastrophe insurance in China and other transitional nations.

Originality

First, this paper analyzes China’s mechanism for managing catastrophic disaster risks and China’s approach which emphasizes government responsibilities will shed light on solving how to manage catastrophe risk efficiently and cover disaster losses fairly. Second, this paper starts a broader discussion about government stimulation of developing catastrophe insurance and this framework can stimulate attention to solve the universal dilemma.

Details

The Political Economy of Chinese Finance
Type: Book
ISBN: 978-1-78560-957-2

Keywords

Article
Publication date: 13 March 2017

Ali Kazemi

The current conceptualizations and measurements of well-being are inadequate in the context of work. Specifically, well-being research has neglected the social aspects of…

Abstract

Purpose

The current conceptualizations and measurements of well-being are inadequate in the context of work. Specifically, well-being research has neglected the social aspects of well-being. Therefore, the present study aims to investigate the validity of a multi-dimensional view of occupational social well-being.

Design/methodology/approach

Data were collected in an educational setting, i.e. six different schools in a Swedish municipality. A total of 314 teachers and other categories of school staff (239 females and 75 males) participated in a survey study.

Findings

Results provided empirical support for a multi-dimensional view of occupational social well-being. The dimensions were integration, acceptance, contribution, actualization and coherence, and they were differentially correlated with previous measures of well-being. Furthermore, occupational social well-being accounted for additional variance in work tension, overall job satisfaction and organizational commitment over and above the variance accounted for by positive and negative affect and satisfaction with life, indicating the value of taking domain-specific social indicators of well-being into account in explaining various employee outcomes.

Practical implications

Occupational social well-being is an umbrella term for describing the well-lived social life in the context of work. As such, this is a crucial part of a holistic view of well-being at work. Thus, effective employee well-being enhancement programs should not only focus on physical and mental health promotion or competence development but must also include measures of relational experience and functioning as discussed in the present study.

Originality/value

This is the first study to measure and validate occupational social well-being as an attempt to complement existing measures of subjective and psychological well-being. Measures of social aspects of well-being are crucial to assess as it has been argued in previous research that context-free measures of well-being might render misleading results.

Details

International Journal of Organizational Analysis, vol. 25 no. 1
Type: Research Article
ISSN: 1934-8835

Keywords

Content available
Book part
Publication date: 22 June 2021

John N. Moye

Abstract

Details

The Psychophysics of Learning
Type: Book
ISBN: 978-1-80117-113-7

Article
Publication date: 16 January 2023

Kamelia Chaichi, Alexander Trupp, Mageswari Ranjanthran and K. Thirumaran

Employee well-being in a casino work environment is crucial for the quality of work-life and employees' performance. This study examines the dimensions of well-being at a…

Abstract

Purpose

Employee well-being in a casino work environment is crucial for the quality of work-life and employees' performance. This study examines the dimensions of well-being at a casino in Malaysia to gain deeper insights into employee challenges and motivational factors to arrive at practical mitigation efforts.

Design/methodology/approach

The study adopted a qualitative approach involving 14 semi-structured interviews with casino employees in Malaysia. Interviews lasted 30 min to 2 h at a time when Covid-19 was raging in 2021. Responses were analysed via a data-driven approach and coded using NVivo software to delineate the contents into analytical categories of well-being dimensions.

Findings

The findings suggest that employees at the casino face challenges in achieving work-life balance. Employee's well-being suffers from insufficient break time, irregular working hours affecting family time, managing customer temper tantrums and lack of emotional support systems and remunerations altered by the pandemic. Women employees were particularly vulnerable.

Research limitations/implications

The findings suggest a need to create better working conditions and address well-being with counselling support for stress management, a balanced approach by employers to the “customer is always right” mantra, creating promising career pathways and supervisors to have better oversight of workaholics. The research focused only on one casino and there was limited access to management departments for an organizational perspective.

Originality/value

This study adds to the body of knowledge on employee well-being in the context of a casino. It suggests hospitality and tourism organizations review their human resource practices that would ease the stresses at the workplace and create support systems to promote employee well-being. Crucially, in a pandemic crisis, well-being dimensions must be accommodating and integrative to employee sentiments, sensitivity and self-actualization.

Details

Equality, Diversity and Inclusion: An International Journal, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2040-7149

Keywords

Open Access
Article
Publication date: 13 April 2022

Christin Mellner, Walter Osika and Maria Niemi

Contemporary workplaces undergo frequent reorganizations in order to stay competitive in a working life characterized by globalization, digitalization, economic…

Abstract

Purpose

Contemporary workplaces undergo frequent reorganizations in order to stay competitive in a working life characterized by globalization, digitalization, economic uncertainty, and ever-increased complexity. Managers are in the frontline of these challenges, leading themselves, organizations and their employees in high stress environments. This raises questions on how to support managers’ work-life sustainability, which is crucial for organizational sustainability. Mindfulness has been related to enhanced capacities to cope with challenges that are associated with organizational change. The authors evaluated short- and long-term effects of an eight-week mindfulness-based intervention in a company setting, which was going through reorganization.

Design/methodology/approach

Forty managers (42.5% males), mean age 54.53 (SD 5.13), were randomized to the mindfulness intervention or a non-active wait-list control. Self-report data were provided on individual sustainability factors in a work context: job demands and resources, psychological detachment, i.e. possibilities for letting go of work-related thoughts during leisure, control over work-nonwork boundaries, work-life balance, and mindfulness at baseline, postintervention, and at 6-month follow-up.

Findings

Linear mixed models (LMMs) analysis (all ps < 0.005 to 0.05) showed that the intervention group had a larger decrease in job demands and a smaller decrease in job resources, a larger increase in psychological detachment, work-nonwork boundary control, work-life balance, and mindfulness from baseline to postintervention when compared with the reference group. These initial effects were sustained at 6-month follow-up.

Originality/value

The study provides evidence that mindfulness practice can enhance managers’ long-term capacity to cope with challenging working conditions, and increase their work-life sustainability in times of organizational change and disruption.

Details

International Journal of Workplace Health Management, vol. 15 no. 4
Type: Research Article
ISSN: 1753-8351

Keywords

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