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Article
Publication date: 8 January 2018

Jiusheng Bao, Yan Yin, Lijian Lu and Tonggang Liu

The purpose of this study is to establish an effective method for characterizing the tribological properties of friction brakes during continuous braking because they have direct…

258

Abstract

Purpose

The purpose of this study is to establish an effective method for characterizing the tribological properties of friction brakes during continuous braking because they have direct influences on the reliable operation of transport vehicles and industrial equipments.

Design/methodology/approach

First, tribological tests were carried out with the X-DM type friction tester, and changing curves of friction coefficient and temperature were obtained. Second, a novel tribological characteristic parameter set characterizing the tribological properties of brake pair in continuous braking was extracted from some important experimental data such as friction coefficient, wear rate and temperature. Finally, the influence of law and mechanism of braking number on dynamic tribological parameters was studied through continuous braking experiments.

Findings

The extracted tribological characteristic parameter set includes two subsets: dynamic characteristic parameter subset and overall characteristic parameter subset, which is composed of ten parameters: dynamic parameters of friction coefficient (including average, trend coefficient and stability coefficient), dynamic wear rate, dynamic average temperature, dynamic temperature rise, overall average friction coefficient, overall wear rate, overall average temperature and overall temperature rise.

Originality/value

Conclusively, the novel tribological characteristic parameter set is more comprehensive and objective, and it can provide a theoretical basis for the study of tribological properties in continuous braking.

Details

Industrial Lubrication and Tribology, vol. 70 no. 1
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 17 October 2023

Hong Chen, Chien-Ping Chen, Wang Jin, Yangyang Wang and Lijian Qin

This paper employs nationwide, large-scale field survey data to provide the first empirical evidence on the impact of human educational capital on the acquisition of health…

196

Abstract

Purpose

This paper employs nationwide, large-scale field survey data to provide the first empirical evidence on the impact of human educational capital on the acquisition of health entitlement among Chinese migrant workers. The findings of this study hold significant practical implications for the formulation of policies aimed at improving the health protection of migrant workers, as well as for socioeconomic policies during China's transitional period.

Design/methodology/approach

Using the IVProbit model, this research examines how human educational capital influences the attainment of health entitlement among migrant workers in China by analyzing the impact and mechanism of education on health entitlement. The study is based on the China Migrants Dynamic Survey (CMDS) data from 2018, which include 100,177 observations.

Findings

For migrant workers in China, higher levels of education have a significant positive effect on the acquisition of health entitlements, including medical insurance, health records and health education. The positive impact of human educational capital on health entitlements is more significant for non-provincial cities and young-generation migrant workers. The results also show that human educational capital can influence the acquisition of health entitlements through mediators such as financial status, social integration and health status.

Originality/value

This study represents the first empirical attempt to evaluate the influence of human educational capital on the access of migrant workers in China to health rights and interests. Additionally, the study develops a theoretical framework to examine how the impact of human educational capital varies across migrant workers with different characteristics and their access to health entitlements.

Details

China Agricultural Economic Review, vol. 15 no. 4
Type: Research Article
ISSN: 1756-137X

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Article
Publication date: 27 December 2022

Zhao Alexandre Huang and Rui Wang

The aim of this study was to examine the early stages of the COVID-19 outbreak and the international communication management of Chinese diplomats as a case for extending the…

519

Abstract

Purpose

The aim of this study was to examine the early stages of the COVID-19 outbreak and the international communication management of Chinese diplomats as a case for extending the definition of intermestic public diplomacy. The goal was to reveal how Beijing subtly used both domestic and foreign social media to organize a network for communication about COVID-19 and purposefully soften the highly centralized and hierarchical political propaganda of the Communist Party of China (CPC).

Design/methodology/approach

Based on the literature on digital public diplomacy, the authors applied the existing concept of intermestic to Chinese politics in order to demonstrate the digitalization of public diplomacy, along with its forms and strategies under an authoritarian regime. A hybrid methodology combining quantitative network analysis and qualitative discourse analysis permits examination of China's intermestic online communication network dynamics, shedding light on how such an intermestic practice promoted Chinese values and power to international publics in the early stages of the COVID-19 crisis.

Findings

The authors’ findings extend the implications of intermestic public diplomacy from a democratic context to an authoritarian one. By analyzing the content of public diplomacy and para-diplomatic social media accounts in China and abroad at the beginning of the COVID-19 crisis, the authors outlined China's early crisis management, explaining its intermestic public diplomacy transmission modes and strategies. Moreover, the authors identified changes in the narrative strategies of Chinese diplomats and journalists during this process.

Social implications

The findings of this study underline that Beijing established a narrative-making virtual communication structure for disseminating favorable Chinese strategic narratives and voices through differentiated communication on domestic and foreign social media platforms. Such intermestic communication strategies were particularly evident and even further weaponized by Beijing in its large-scale Wolf Warrior diplomacy in the spring of 2020. Thus, the study’s findings help readers understand how China digitalized its public diplomacy, its digital communication patterns and strategies.

Originality/value

On the one hand, geopolitical uncertainty and the popularity of social media have contributed to the evolution of the intermestic model of public diplomacy. This model allows actors to coordinate homogenous and differentiated communication practices to deploy their influence. On the other hand, the authors did not examine how intermestic audiences perceive and receive public diplomacy practices. In future studies, scholars should measure the agenda-setting capacity of diplomatic actors by examining the effects of such intermestic communication efforts.

Details

Journal of Communication Management, vol. 27 no. 2
Type: Research Article
ISSN: 1363-254X

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Article
Publication date: 23 February 2021

Jana Fedtke, Mohammed Ibahrine and Yuting Wang

This paper analyzes Fang Fang's 2020 Wuhan Diary‐Dispatches from a Quarantined City, to show how the author communicates the coronavirus crisis in Wuhan in a global information…

463

Abstract

Purpose

This paper analyzes Fang Fang's 2020 Wuhan Diary‐Dispatches from a Quarantined City, to show how the author communicates the coronavirus crisis in Wuhan in a global information ecosystem. The success of the diary showcases how the actual health emergency has been transformed into a communication issue.

Design/methodology/approach

This study is exploratory and qualitative in nature. The authors conducted a thematic analysis (TA) of Wuhan Diary, in which we decided to focus on the aspects of sousveillance and solidarity. For the purposes of our paper, we used the English translation of the text by Dr. Michael Berry.

Findings

The authors focus on two major themes in their exploration of the corona crisis as a global communication issue: sousveillance and solidarity. The authors argue that the diary's ways of seeing perform a version of “sousveillance” or “undersight” in juxtaposition to surveillance or “oversight” (Mann, 2017). Fang Fang calls for solidarity as an effective measure for individuals, communities and societies to contain the pandemic and a potential misinfodemic.

Originality/value

Since Wuhan was the early epicenter of the COVID-19 pandemic, Wuhan Diary presents an unprecedented narrative account of life under quarantine that could function as a litmus test for other cities and countries. Fang Fang's diary provides a countermeasure to official accounts of the pandemic in Wuhan, which has resonated both with people in China and abroad.

Details

Online Information Review, vol. 45 no. 4
Type: Research Article
ISSN: 1468-4527

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Article
Publication date: 29 December 2020

Xiaobo Li, Bao Jiang and Jian Li

Supply chain finance (SCF) is a promising financing solution for small and medium enterprises (SMEs). The study aims to highlight the determinants of the adoption of SCF and the…

1014

Abstract

Purpose

Supply chain finance (SCF) is a promising financing solution for small and medium enterprises (SMEs). The study aims to highlight the determinants of the adoption of SCF and the theoretical implications for SCF in SMEs.

Design/methodology/approach

Drawing on the theory of planned behaviour (TPB), the authors develop a model and test hypotheses about the factors (1) SE, (2) attitude toward SCF, (3) social influence (SI), (4) adoption intention (AI) and (5) actual adoption (AA) of SCF. Data collected from a survey of 211 managers in SMEs in China were used to conduct a partial least squares (PLS) estimation.

Findings

The empirical results indicate that attitude toward SCF and SI positively affect AI towards SCF, whereas AI positively affects the AA of SCF. Specifically, the authors find that AI plays a mediating role in the relationship between SE and AA of SCF, whereas attitude toward SCF plays a mediating role between SI and AI.

Originality/value

First, the authors use the TPB to study the adoption of SCF in SMEs. Second, the authors apply PLS to clarify the influence mechanism of behavioural factors on the adoption of SCF. The authors provide a useful approach for practitioners in examining the adoption of SCF by SMEs.

Details

Business Process Management Journal, vol. 27 no. 2
Type: Research Article
ISSN: 1463-7154

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Article
Publication date: 13 May 2024

Qiang Yang, Tianfei Xia, Lijia Zhang, Ziye Zhou, Dequan Guo, Ao Gu, Xucai Zeng and Ping Wang

The purpose of this paper is to use the corresponding magnetic sensor and detection method to detect and image the defects of small diameter pipelines. Urban gas pipeline is an…

83

Abstract

Purpose

The purpose of this paper is to use the corresponding magnetic sensor and detection method to detect and image the defects of small diameter pipelines. Urban gas pipeline is an energy transportation tool for urban industrial production and social life, which is closely related to urban safety. Preventing the occurrence of urban gas pipeline transportation accidents and carrying out pipeline defect detection are of great significance for the urban economic and social stability. To perform pipeline defect detection, the magnetic flux leakage internal detection method is generally used in the detection of large-diameter long-distance oil and gas pipelines. However, in terms of the internal detection of small-diameter pipelines, due to the heavy weight, large structure of the detection device and small pipe diameter, the detection is more difficult.

Design/methodology/approach

In order to solve the above matters, self-made three-dimensional magnetic sensor and three-dimensional magnetic flux leakage imaging direct method are proposed for studying the defect identification. Firstly, for adapting to the diameter range of small-diameter pipelines, and containing the complete information of the defect, a self-made three-dimensional magnetic sensor is made in this paper to improve the accuracy of magnetic flux leakage detection. And on the basis of it, a small diameter pipeline defect detection system is built. Secondly, as detection signal may be affected by background magnetic field interference and the jitter interference, the complete ensemble empirical mode decomposition with adaptive noise method is utilized to screen the detected signal. As a result, the useful signal is reconstructed and the interference signal is removed. Finally, the defect contour inversion imaging of detection is realized based on the direct method of three-dimensional magnetic flux leakage imaging, which includes three-dimensional magnetic flux leakage detection data and data segmentation recognition.

Findings

The three-dimensional magnetic flux leakage imaging experimental results shown that, compared to the actual defects, the typical defects, irregular defects and crack groove defects can be analyzed by the magnetic flux leakage defect contour imaging method in qualitative and quantitative way respectively, which provides a new idea for the research of defect recognition.

Originality/value

A three-dimensional magnetic sensor is made to adapt the diameter range of small diameter pipeline, and based on it, a small-diameter pipeline defect detection system is built to collect and display the magnetic flux leakage signal.

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