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Article
Publication date: 4 January 2016

Particle capture of elliptic cross-section matrices for parallel stream high gradient magnetic separation

Xiayu Zheng, Yuhua Wang and Dongfang Lu

The purpose of this paper is to model the particle capture of elliptic magnetic matrices for parallel stream type high magnetic separation, which can be a guidance for the…

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Abstract

Purpose

The purpose of this paper is to model the particle capture of elliptic magnetic matrices for parallel stream type high magnetic separation, which can be a guidance for the development of novel elliptic cylinder matrices for high-gradient magnetic separation (HGMS).

Design/methodology/approach

The magnetic field distribution around the elliptic matrices is investigated quantitatively and the magnetic field and gradient were calculated. The motion equations of the magnetic particles around the matrices were derived and the particle capture cross-section of elliptic matrices was studied and was compared with that of the conventional circular matrices.

Findings

Elliptic matrices can present larger particle capture cross-section than the conventional circular matrices and can be a kind of promising matrices to be applied to HGMS.

Originality/value

There is little literature investigating the magnetic characteristics and the particle capture of the elliptic matrices in HGMS, the study is of great significance for the development of novel elliptic magnetic matrices in HGMS.

Details

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, vol. 35 no. 1
Type: Research Article
DOI: https://doi.org/10.1108/COMPEL-03-2015-0140
ISSN: 0332-1649

Keywords

  • Magnetic devices
  • Magnetism
  • Magnetic separation
  • Magnetic field and gradient
  • Elliptic cylinder matrices
  • Capture cross-section

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Article
Publication date: 4 March 2020

Experimental investigation on Stribeck curves of different elastic modulus materials under oil and water lubrication conditions

Hua Zhang, Guangwu Zhou, Ping Zhong, Kepeng Wu and Xingwu Ding

The purpose of this paper is to study the influence of friction coefficient of materials with different elastic modulus on the variation of velocity and load under water…

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Abstract

Purpose

The purpose of this paper is to study the influence of friction coefficient of materials with different elastic modulus on the variation of velocity and load under water lubrication and oil lubrication conditions.

Design/methodology/approach

Low-viscosity lubricating oil and water were used as lubricants to test the friction performance of the ball-disc contact friction pair in the lubrication state on the universal micro-tribometer multi-functional friction and wear test system.

Findings

In the same speed range, the lubrication states from soft to rigid materials are not necessarily similar to each other. Generally, the material with low elastic modulus is suitable in low-viscosity lubricant environments, while the material with high elastic modulus has relatively smaller friction coefficients in oil-lubricated environments compared with water lubrication. However, the coefficients of polyethylene, polytetrafluoroethylen and polyoxymethylene are exceeded by rubber’s coefficients under water lubrication in the same experiment environments, and their lubrication states are not affected by lubricants. The friction coefficient of the friction pair decreases with the increase of loads; however, it does not apply to all materials. The friction coefficients of materials with smaller elastic modulus such as rubber under high loads are rather large. Therefore, the elastic modulus of the material under high loads is a factor to be considered.

Originality/value

The Stribeck curves study of the ball-disk contact friction pair comprising soft and rigid materials, whose elastic modulus is from hundreds of GPa to a few of MPa, was carried out. The influence of different speeds, loads and lubricants on the friction coefficient of the friction pair was revealed, which provided a research basis for the selection and matching of friction pair materials.

Details

Industrial Lubrication and Tribology, vol. 72 no. 6
Type: Research Article
DOI: https://doi.org/10.1108/ILT-08-2019-0305
ISSN: 0036-8792

Keywords

  • Lubrication
  • Friction coefficient
  • Stribeck curve

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Article
Publication date: 1 October 2006

Transfer of Taylorist ideas to China, 1910‐1930s

Stephen L. Morgan

Management is a “hot field” in China, yet little has been written in English about the history of management in China. Contrary to contemporary management literature, the…

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Abstract

Purpose

Management is a “hot field” in China, yet little has been written in English about the history of management in China. Contrary to contemporary management literature, the paper aims to show that Chinese entrepreneurs and managers were exposed to modern management ideas from the early twentieth century. The paper is an initial exploration of the transfer of managerial knowledge to China, especially Scientific Management, during the interwar period.

Design/methodology/approach

Draws on Chinese journal articles and books from 1910‐1930s, supplemented with archive materials and secondary sources in Chinese and English.

Findings

Chinese industrialists, officials and academics were attracted to Taylor's ideas of scientific management during the 1920s and 1930s, which were experimented with on a wider scale than is commonly realized. The interest in “new” management extended beyond industrialists and industry officials to reportage in the popular press.

Research limitations/implications

Future research should consider first how new ideas about management and organization were implemented on the shopfloor in individual Chinese enterprises, and second examine the role of social networks constituted by native place, industry ties and professional association membership in the diffusion of managerial ideas among the Chinese business elite of the period.

Originality/value

The paper shows that the transfer to China of modern management as an ideas system was not a recent phenomenon, but part of a century‐long process of transfer and adaptation of western management theory and practice.

Details

Journal of Management History, vol. 12 no. 4
Type: Research Article
DOI: https://doi.org/10.1108/17511340610692761
ISSN: 1751-1348

Keywords

  • China
  • Management history
  • Business history
  • Scientific management

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Article
Publication date: 13 February 2017

Understanding link sharing tools continuance behavior in social media

Jianjun Sun, Dongfang Sheng, Dongxiao Gu, Jia Tina Du and Chao Min

The purpose of this paper is to investigate the continued use behavior (CU) of link sharing tools based on uses and gratifications theory, the theory of planned behavior…

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Abstract

Purpose

The purpose of this paper is to investigate the continued use behavior (CU) of link sharing tools based on uses and gratifications theory, the theory of planned behavior and expectation confirmation theory. It then builds a conceptual model that is empirically tested.

Design/methodology/approach

Data were collected from 343 students (undergraduates, masters, PhD students, and MBAs) from three Chinese universities via a two-phrase survey. The tools SPSS 18.0 and AMOS 18.0 were used to analyse the reliability, validity, model fits and SEM, respectively.

Findings

The results indicate that an individual’s CU of link sharing tools was determined by his or her continued use intention directly and subjective norm indirectly. Users’ satisfaction on link sharing tools was the main factor affecting the continuance intention. Individuals’ motivation needs such as cognitive needs, personal integrative needs, and social integrative needs were found to be the significant predictors of his or her satisfaction. Besides, people with high privacy concern tended to have less satisfaction with link sharing tools.

Originality/value

This study explores users’ CU of link sharing tools in social media for the first time. The theoretical model developed shows the predictors behind people’s CU.

Details

Online Information Review, vol. 41 no. 1
Type: Research Article
DOI: https://doi.org/10.1108/OIR-08-2015-0261
ISSN: 1468-4527

Keywords

  • Social media
  • Satisfaction
  • Continued use behaviour
  • Link sharing tools
  • Motivation needs

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Article
Publication date: 9 March 2020

Research and improvement of fraud identification model of Chinese A-share listed companies based on M-score

Wanting Lu and Xiaokang Zhao

The purpose of this paper is to start with the background of the construction of the M-score model, find the variables that can represent the fraud characteristics of…

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Abstract

Purpose

The purpose of this paper is to start with the background of the construction of the M-score model, find the variables that can represent the fraud characteristics of Chinese companies, and use the data of Chinese A-share listed companies to modify the M-score model.

Design/methodology/approach

In this paper, the fraud behavior of Chinese enterprises that M-score cannot detect is summarized as the basis of adding variables. Then, based on the data of Chinese listed companies, a modified M-score model including nine variables is constructed by the logistic regression method based on Wald.

Findings

Based on the original 8 variables of M-score, this paper adds 10 new variables that can represent the fraud characteristics of Chinese listed companies, and finally, constructs a modified M-score model with 9 variables. Results indicated that indexes such as gross profit margin, fixed assets depreciation rate, equity concentration and audit opinion can characterize the financial fraud of Chinese listed companies.

Practical implications

The modified M-score model based on the characteristics of Chinese enterprises’ fraud is more suitable for Chinese market, which can help investors avoid fraud risks, protect their own rights and interests and reduce losses.

Originality/value

Starting from the background of the model, this paper looks for variables that can characterize the characteristics of fraud in Chinese listed companies. Then, subdivides the research samples into specific fiscal years in which fraud occurs, so that the modified M-score model can be more suitable for the Chinese market.

Details

Journal of Financial Crime, vol. ahead-of-print no. ahead-of-print
Type: Research Article
DOI: https://doi.org/10.1108/JFC-12-2019-0164
ISSN: 1359-0790

Keywords

  • Financial fraud
  • M-score
  • Fraud identification model
  • Chinese listed companies

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Article
Publication date: 5 February 2020

Effect of carbides on sensitivity of pitting corrosion in Inconel 718 alloy

Xianping Wei and Wen Jie Zheng

This paper aims to expand the application area of Inconel 718 alloy in marine environment, the sensitivity of pitting corrosion should be analyzed and discussed…

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Abstract

Purpose

This paper aims to expand the application area of Inconel 718 alloy in marine environment, the sensitivity of pitting corrosion should be analyzed and discussed, especially the effect of block carbides.

Design/methodology/approach

Effect of carbides on the sensitivity of pitting corrosion for Inconel 718 alloy was carried out at 30°C in 3.5% NaCl solution using dynamic electrochemical impedance spectroscopy and anodic polarization techniques. In addition, the initiation of pitting corrosion was investigated by immersion test in 0.05 M HCl + 6% FeCl3 solution.

Findings

As a result, the precipitation of carbides, as the initiation of pitting corrosion, increased pitting corrosion susceptibility, especially the block carbides could lead to deep-spalling. Within that process, temperature and potential acted as the main controlling factors, and the effect of the latter was more distinct.

Originality/value

The initiation of pitting corrosion was revealed by the immersion test. The mechanism of pitting corrosion was analyzed and discussed.

Details

Anti-Corrosion Methods and Materials, vol. 67 no. 2
Type: Research Article
DOI: https://doi.org/10.1108/ACMM-10-2018-2025
ISSN: 0003-5599

Keywords

  • Pitting corrosion
  • Anodic polarization
  • DEIS
  • Immersion test
  • Inconel 718 alloy

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Article
Publication date: 6 January 2020

Flame-retardancy, thermal and coating properties of P-containing poly-acrylate resin cured with MF resin

Xinyue Liang, Hui Qiao, Guilong Xu, Yanchong Zhang, Yun Liang and Jian Hu

The flammability of poly-acrylate (PA) resin is a major disadvantage in applications that require flame resistance. Many studies, including the authors’ previous study…

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Abstract

Purpose

The flammability of poly-acrylate (PA) resin is a major disadvantage in applications that require flame resistance. Many studies, including the authors’ previous study, have proved that covalent-incorporated phosphorous-containing (P-containing) monomer onto the PA resin can exhibit better flame resistance than that by an additive approach. However, other properties such as thermal stability, coating properties are still deteriorated. To further improve the flame-retardancy and other comprehensive properties of the P-containing PA resin, in this study, melamine formaldehyde(MF) resin was used not only as a curing agent to enhance the coating properties of the PA resin, but also as a nitrogen-containing (N-containing) resin to form a P-N synergistic effect and therefore further improve its flame retardancy.

Design/methodology/approach

Epoxy resin phosphorous acid-modified (EPPA-modified) PA (EPPA-PA) resin was first prepared and then using MF resin as curing agent. The flame retardancy of the cured resin was tested by the limiting oxygen index (LOI) and UL 94 methods. The thermal stability of the cured resin was studied by TGA. The coating technology such as adhesion property, pencil hardness and anti-solvent properties were characterized according to methods of International Standards ISO2409-1992, ISO 15184-1998 and ISO-15184-2012, respectively. The micro-char morphology of the char residue was observed by SEM.

Findings

The results showed that by using MF resin as curing agent has provided the PA resin with excellent coating properties and thermal stability, but also gave a P-N synergistic effect which has greatly enhanced the flame retardancy of the cured resin. The cured resin system containing only 1.7 Wt.% P content and 5.3 Wt.% N content can reach a LOI of 26.9 per cent and pass the V-0 rating in the UL-94 test.

Research limitations/implications

This resin system releases formaldehyde due to the MF resin.

Practical implications

It is expected that the large-scale production of this EPPA-PA resin cured by MF resin system will enable practical industrial applications.

Originality/value

This method for the synthesis of a P- and N-containing PA resin system is newfangled.

Details

Pigment & Resin Technology, vol. 49 no. 1
Type: Research Article
DOI: https://doi.org/10.1108/PRT-04-2019-0035
ISSN: 0369-9420

Keywords

  • Flame retardancy
  • MF resin
  • P-containing PA resin
  • P-N synergistic effect

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Article
Publication date: 22 October 2019

Cross-culture product hybridization in pre-communist China (1912–1949)

Tony Yan and Michael R. Hyman

Studies on cross-culture marketing often focus on either localization or globalization strategies. Based on data from pre-communist China (1912–1949), product…

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Abstract

Purpose

Studies on cross-culture marketing often focus on either localization or globalization strategies. Based on data from pre-communist China (1912–1949), product hybridization – defined as a process or strategy that generates symbols, designs, behaviors and cultural identities that blend local and global elements – emerges as a popular intermediate strategy worthy of further inquiry. After examining the mechanisms and processes underlying this strategy, a schema for classifying product hybridization strategies is developed and illustrated. The paper aims to discuss these issues.

Design/methodology/approach

Critical historical research method is applied to historical data and historical “traces” from pre-communist China’s corporate documents, memoirs, posters, advertisements, newspapers and secondhand sources.

Findings

Strategic interactions between domestic and foreign companies in pre-communist China fostered products and a city (Shanghai) containing Chinese and non-Chinese elements. Informed by historical traces and data from pre-communist China (1912-1949), a 2 × 2 classification schema relating company type (i.e. foreign or domestic) to values spectrum endpoint (i.e. domestic vs foreign) was formulated. This schema reflects the value of communication, negotiation and cultural (inter)penetration that accompanies cross-culture product flows.

Research limitations/implications

Cross-culture marketing strategies meant to help companies satisfy diverse marketplace interests can induce a mélange of product design elements. Because product hybridization reflects reciprocity between domestic and foreign companies that embodies multiple interests and contrasting interpretations of product meanings, researchers should examine globalization and localization synergistically.

Practical implications

Strategies adopted by domestic and foreign companies in pre-communist China (1912–1949) can help contemporary companies design effective cross-culture marketing strategies in a global marketplace infused with competing meanings and interests.

Originality/value

Examining historical strategies adopted in pre-communist China (1912–1949) can inform contemporary marketers’ intuitions. Understanding product hybridization in global marketplaces can improve marketing efficiency.

Details

Asia Pacific Journal of Marketing and Logistics, vol. 32 no. 2
Type: Research Article
DOI: https://doi.org/10.1108/APJML-12-2018-0502
ISSN: 1355-5855

Keywords

  • China
  • Globalization
  • Advertising
  • Localization
  • Hybridization
  • Cross-cultural marketing

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Article
Publication date: 1 September 2007

Dependency or Interdependency: United States Power Generation Firms’ Entry into China

Lena Croft and Shige Makino

Conventional theories of market entry assume choice availability. This investment assumption is subject to challenges in the power generation market of an emerging economy…

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Abstract

Conventional theories of market entry assume choice availability. This investment assumption is subject to challenges in the power generation market of an emerging economy where the host government controls most key resources and market entry choices. With such constraints, entrants become heavily dependent on their host country partners. This study investigates how the resource dependency frameworks explain better in respect of some US power generation firms that manage to operate electricity facilities in China whereas some have to abort. Using cross‐case analysis, patterns emerged illustrate how two groups of entrants manage key resources differently.

Details

Journal of Asia Business Studies, vol. 2 no. 1
Type: Research Article
DOI: https://doi.org/10.1108/15587890780001280
ISSN: 1558-7894

Keywords

  • Market Entry
  • Resource Dependency
  • US Power Generation Sector
  • China

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Article
Publication date: 24 February 2012

Service innovation research in China: past, present and future

Jing Hua Li

China always acts as a large low‐cost manufacturing economy under globalization. However, her services are also active and innovative today although still small. The…

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Abstract

Purpose

China always acts as a large low‐cost manufacturing economy under globalization. However, her services are also active and innovative today although still small. The purpose of this paper is to exhibit the roadmap of service innovation research in China and to predict the future research trend.

Design/methodology/approach

A literature review was organized under a cross framework – innovation in services, and service innovation with manufacturing. All literature was selected from Chinese academic periodicals and monographs in the last decade. The search keywords include “service innovation”, “knowledge‐intensive business services”, and “new service development”.

Findings

Through the review of Chinese literature, two critical characteristics of service innovation were proved, i.e. organizational innovation and regulation environment; and for China, the marketalization of services is urgent for the motivation and accumulation of service innovation capability.

Practical implications

Policy makers should take services as significant as manufacturing, and put them into the national and regional innovation systems. Regulation should be reduced to a low level to stimulate service innovation. Government should also encourage the development of the services infrastructure, including social credit system, independent intermediary, grid, and NGOs, etc.

Originality/value

The paper gives an insight into the perspectives of management, sociology, and economics in the service innovation field using the Chinese research track as an illustration.

Details

Journal of Science and Technology Policy in China, vol. 3 no. 1
Type: Research Article
DOI: https://doi.org/10.1108/17585521211198356
ISSN: 1758-552X

Keywords

  • China
  • Service industries
  • Research work
  • Knowledge organizations
  • Service innovation
  • Knowledge‐intensive business services

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