Wenchao Zhang, Enming Cui, Cheng Wang, Baoquan Zhang, Jiwei Jin, Pengfei Zhang, Wending Wu and Mingwei Wang
An investigation was conducted into the impact of various process parameters on the surface and subsurface quality of glass-ceramic materials, as well as the mechanism of material…
Abstract
Purpose
An investigation was conducted into the impact of various process parameters on the surface and subsurface quality of glass-ceramic materials, as well as the mechanism of material removal and crack formation, through the use of ultrasonic-assisted grinding.
Design/methodology/approach
A mathematical model of crack propagation in ultrasonic-assisted grinding was established, and the mechanism of crack formation was described through the model. A series of simulations and experiments were conducted to investigate the impact of process parameters on crack depth, surface roughness, and surface topography during ultrasonic-assisted surface and axial grinding. Additionally, the mechanism of crack formation was explored.
Findings
During ultrasonic-assisted grinding, the average grinding forces are between 0.4–1.0 N, which is much smaller than that of ordinary grinding (1.0–3.5 N). In surface grinding, the maximum surface stresses between the workpiece and the tool gradually decrease with the tool speed. The surface stresses of the workpiece increase with the grinding depth, and the depth of subsurface cracks increases with the grinding depth. With the increase of the axial grinding speed, the subsurface damage depth increases. The roughness increases from 0.780um/1.433um.
Originality/value
A mathematical model of crack propagation in ultrasonic-assisted grinding was established, and the mechanism of crack formation was described through the model. The deformation involved in the grinding process is large, and the FEM-SPH modeling method is used to solve the problem that the results of the traditional finite element method are not convergent and the calculation efficiency is low.
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This chapter uses the entrepreneurial experiences of women entrepreneurs in urban China as an empirical case to discuss contextual influences on women's everyday entrepreneurial…
Abstract
This chapter uses the entrepreneurial experiences of women entrepreneurs in urban China as an empirical case to discuss contextual influences on women's everyday entrepreneurial experience in developing countries. Based on thematic analysis of women's own accounts of their entrepreneurial experiences, four contextual influences emerged: (1) preentrepreneurial work experience, (2) national entrepreneurial development, (3) cultural values, and (4) gendered work ideology. These influences shaped and were shaped by women's entrepreneurial identities, decisions, and actions in situated contexts. To further understand women's negotiations with these influences in developing countries, future research are called for to investigate how women resist dominant structures to carve out entrepreneurial agencies and enact resiliency to build sustainable businesses.
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Teng Xiao, Daosheng Wen, Shouren Wang, Mingyuan Zhang, Beibei Kong and Qiqi Yu
This paper aims to investigate the fretting wear mechanism of an Al-Li alloy at room temperature, the tangential fretting wear tests were carried out.
Abstract
Purpose
This paper aims to investigate the fretting wear mechanism of an Al-Li alloy at room temperature, the tangential fretting wear tests were carried out.
Design/methodology/approach
The effects of displacement amplitude and fretting frequency on the tangential fretting wear characteristics were mainly investigated. The experimental data obtained are analyzed and compared.
Findings
The results indicated that the fretting friction coefficient increased with the increase of displacement amplitude. As the displacement amplitude increased, the wear scar morphology changed significantly, mainly in terms of delamination debris and furrow scratches. The wear mechanism changed from initial mild wear to more severe oxidative wear, adhesive wear and abrasive wear.
Originality/value
This paper extends the knowledge into mechanical tight connections. The conclusions can provide theoretical guidance for the fretting of mechanical tight connections in the field of automotive lightweight and aerospace.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-11-2019-0490/
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Jie Chen, Bruce Judd and Scott Hawken
With the dramatic transformation of China’s industrial landscape, since the late 1990s, adaptive reuse of industrial heritage for cultural purposes has become a widely occurring…
Abstract
Purpose
With the dramatic transformation of China’s industrial landscape, since the late 1990s, adaptive reuse of industrial heritage for cultural purposes has become a widely occurring phenomenon in major Chinese cities. The existing literature mainly focusses on specific cases, yet sees heritage conservation similarly at both national and regional scale and rarely identifies the main factors behind the production of China’s industrial-heritage reuse. The purpose of this paper is to examine the differences in heritage reuse outcomes among three Chinese mega-cities and explore the driving factors influencing the differences.
Design/methodology/approach
This paper compares selected industrial-heritage cultural precincts in Beijing, Shanghai and Chongqing, and explores the local intervening factors influencing differences in their reuse patterns, including the history of industrial development, the availability of the nineteenth and/or twentieth century industrial buildings, the existence of cultural capital and the prevalence of supportive regional government policy.
Findings
The industrial-heritage reuse in the three cities is highly regional. In Beijing, the adaptation of industrial heritage has resulted from the activities of large-scale artist communities and the local government’s promotion of the city’s cultural influence; while in Shanghai, successful and more commercially oriented “sea culture” artists, private developers in creative industries and the “creative industry cluster” policy make important contributions. Chongqing in contrast, is still at the early stage of heritage conservation, as demonstrated by its adaptive reuse outcomes. Considering its less-developed local cultural economy, Chongqing needs to adopt a broader range of development strategies.
Originality/value
The paper contributes to knowledge by revealing that the production of industrial-heritage cultural precincts in Chinese mega-cities is influenced by regional level factors, including the types of industrial heritage, the spontaneous participation of artist communities and the encouragement of cultural policy.
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Frederick Doe and Bill Buenar Puplampu
The purpose of this study is to provide a link that will close the gap in the field in respect of the methods used to measure the causes of coercive management behaviour (CMB) in…
Abstract
Purpose
The purpose of this study is to provide a link that will close the gap in the field in respect of the methods used to measure the causes of coercive management behaviour (CMB) in universities and analogous institutions. Second, cultural and geographical differences and absence of studies of the phenomenon in the African university context have instigated researchers’ decision to design new scales to identify and measure the causes of CMB in the workplace.
Design/methodology/approach
A total of 371 respondents were surveyed in a cross-sectional survey using a developed scale which had 20 items. The study adopted the latent variable approach to scale development.
Findings
Following an exploratory factor analysis done, five factors were extracted for the measurement of causes of CMB. A Cronbach alpha for all five factors to measure causes of CMB revealed validity for the administrative, social, organisational, cultural and governance elements. The research therefore surmised that the instrument developed to measure causes of CMB proposed is valid.
Research limitations/implications
The study provides a vital bridge in the gap between the occurrence of CMB and the identification and measurement of its causes in universities thus contributing to knowledge.
Practical implications
As a nation that is heavily imbued with culture, there is need to push for modifications in culture at the national level and within the African setting so as to ensure curtailment or total eradication of CMB for the future.
Originality/value
The study brings to research attention hitherto unmarked causes of CMB by providing a validated instrument that can be used to measure causes of the phenomenon.
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Lin Gui, Zhendong Yin and Huihua Nie
The stability maintenance system has played an essential role in maintaining social stability although it also has brought about social problems worthy of attention. Admittedly…
Abstract
Purpose
The stability maintenance system has played an essential role in maintaining social stability although it also has brought about social problems worthy of attention. Admittedly compensation-based stability maintenance policy can address the appeals of citizens whose rights are infringed and the dissolving effect in the provision of compensation can save the cost of stability maintenance but such stability maintenance system lacks equilibrium.
Design/methodology/approach
The establishment of a strict assessment system for stability maintenance performance can encourage the stability maintenance authorities to eliminate the “fuse effect” as much as possible and ensure the effective implementation of the stability maintenance system. However, the rigorous stability maintenance performance assessment also provides the possibility for profit-driven petitions.
Findings
Due to the continuous accumulation of social dissatisfaction and the lack of stability maintenance equilibrium in the implementation of the compensation-based stability maintenance policy, public governance will fall into a stability maintenance paradox of “greater instability resulting from stability maintenance”.
Originality/value
The provision of sufficient means for the people to protect their interest by implementing measures such as strengthening the rule of law mechanisms is the key to achieve long-term social stability.
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Despite an intensified anti-corruption campaign, China's economic growth and social transition continue to breed loopholes and opportunities for big corruption, leading to a…
Abstract
Despite an intensified anti-corruption campaign, China's economic growth and social transition continue to breed loopholes and opportunities for big corruption, leading to a money-oriented mentality and the collapse of ethical standards, and exposing the communist regime to greater risk of losing moral credibility and political trust. In Hong Kong, the setting up of the Independent Commission Against Corruption (ICAC) in 1974 marked the advent of a new comprehensive strategy to eradicate corruption and to rebuild trust in government. The ICAC was not just an anti-corruption enforcement agency per se, but an institution spearheading and representing integrity and governance transformation. This chapter considers how mainland China can learn from Hong Kong's experience and use the fight against corruption as a major political strategy to win the hearts and minds of the population and reform governance in the absence of more fundamental constitutional reforms, in a situation similar to Hong Kong's colonial administration of the 1970s–1980s deploying administrative means to minimize a political crisis.
This paper aims to critically discuss the mounting role of social media (SM) or social networking sites (SNSs) on various human resource management (HRM) practices.
Abstract
Purpose
This paper aims to critically discuss the mounting role of social media (SM) or social networking sites (SNSs) on various human resource management (HRM) practices.
Design/methodology/approach
The paper is based on 87 published papers collected from the Web of Science Database particularly from 2010 to 2020 (up to June) using VOSviewer software. After reviewing those paper contents, the author briefly highlighted the findings.
Findings
According to most of the previous studies, the utilization of SM information for various HRM practices is rising although such utilization is mostly limited to talent search and recruitment & selection at present. Further, it was found that Facebook and LinkedIn are the two most accepted sites among the hiring professionals where the first one mostly provides behavioral information and the second one provides job-related information. Finally, it was revealed that organizations can develop a strong corporate branding through the presence in SM.
Research limitations/implications
This review paper is expected to motivate further research initiatives regarding the role of social media into different HRM practices.
Practical implications
The author expects that based on the findings, the organizational policymakers can get some practical guidelines regarding the efficient utilization of such a platform.
Originality/value
Social media is a powerful platform for flourishing business entities, promoting products, branding, talent search and so many more purposes. An organization can well promote its existence through this popular platform. In particular, the media can be a well-established platform for searching competent employees and creating employer branding. Therefore, more and more research studies should be carried out focusing on this recent issue. This review paper can be a base for the upcoming researchers as it has accumulated the previous literature and their findings.
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Bataa Sayed Mohamed Mazen, Badawi Mohamed Ismail, Rushdya Rabee Ali Hassan, Mahmoud Ali and Wael S. Mohamed
The purpose of this study is to detect the effect of some natural cellulosic polymers in their nano forms with the addition of zinc oxide nanoparticles on restoring the lost…
Abstract
Purpose
The purpose of this study is to detect the effect of some natural cellulosic polymers in their nano forms with the addition of zinc oxide nanoparticles on restoring the lost mechanical strength of degraded papyrus without any harmful effects on the inks.
Design/methodology/approach
In the current study, the USB digital microscopy, scanning electron microscope, measurement of mechanical properties (tensile and elongation), pH measurement, color change and infrared spectroscopy were undertaken for the samples before and after treatment and aging.
Findings
In the current study, the USB digital microscopy, scanning electron microscope, measurement of mechanical properties (tensile and elongation), pH measurement, color change and infrared spectroscopy were undertaken for the samples before and after treatment and aging.
Originality/value
The effect of strengthening materials was studied on cellulose and carbon ink, which makes this study closer to reality as the manuscript is the consistent structure of cellulose and inks, whereas most of the literature stated the impact of consolidation materials on the strengthening the cellulosic supports without attention to their impact on inks.