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Article
Publication date: 15 July 2020

Zhenduo Zhang, Li Zhang, Jing Xiu and Junwei Zheng

Based on the social cognitive theory, this research analyzed the helping behavior of leaders and its trickle-down effect on an employee's helping behavior. Additionally, this…

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Abstract

Purpose

Based on the social cognitive theory, this research analyzed the helping behavior of leaders and its trickle-down effect on an employee's helping behavior. Additionally, this study analyzed the relationship between an employee's helping behavior and thriving at work.

Design/methodology/approach

Cellphones were used to collect data using the experience sampling method from 74 participants over five consecutive days (N = 370), and the conceptual model was analyzed at the episode level.

Findings

This research examined the helping behavior of employees and its role in mediating the relationship between a leader's helping behavior and an employee's thriving at work. Psychological availability moderates this indirect relationship; and high psychological availability increases the indirect influence of a leader's helping behavior on an employee's helping behavior, which in turn increases employee's thriving at work.

Originality/value

The findings of this research shed light on a new social cognitive mechanism through which the helping behavior of leaders enhances an employee's thriving at work.

Details

Leadership & Organization Development Journal, vol. 41 no. 6
Type: Research Article
ISSN: 0143-7739

Keywords

Article
Publication date: 2 January 2020

Zeng Wu, Wei Ma, Hong-xiu Xiao and Jing-kun Zhang

Fastener technology is one of the key technologies of the ballastless track structure, and the spring strip is the key component to realize the fastener function. Based on the…

Abstract

Purpose

Fastener technology is one of the key technologies of the ballastless track structure, and the spring strip is the key component to realize the fastener function. Based on the fatigue test of the WJ-7 type fastener of the ballastless track in China, it is concluded that the fatigue damage of an elastic strip is the main reason for the decline of service performance of the fastener. The purpose of this paper is to discuss the fatigue life of the fastener.

Design/methodology/approach

First, a DH3818 static strain tester is used to measure the static strain signal in the elastic strip fatigue test, and then the fatigue limit of the WJ-7 elastic strip is calculated. Finally, the fatigue life of the fastener strip is estimated.

Findings

The findings of the paper are as follows: first, the lowest fatigue life with a survival rate of 99 percent should be taken as a reference for the service times of WJ-7; second, the fatigue life of the modified formula found to be short under the same stress amplitude.

Originality/value

The fatigue test is processed by the authors and the results of elastic strip are obtained based on the test. Meanwhile, the corresponding limit value of the fatigue stress amplitude is calculated based on the tested results.

Details

International Journal of Structural Integrity, vol. 11 no. 6
Type: Research Article
ISSN: 1757-9864

Keywords

Article
Publication date: 4 March 2014

You-Qiang Wang, Xiu-Jiang Shi and Li-Jing Zhang

Water-lubricated rubber bearing is one of the most appropriate bearings for underwater use. The most popular design used widely today is the straight fluted rubber bearing. The…

Abstract

Purpose

Water-lubricated rubber bearing is one of the most appropriate bearings for underwater use. The most popular design used widely today is the straight fluted rubber bearing. The special configuration leads to partial hydrodynamic lubrication and low load capacity. A new bearing bush structure with two cavities which is favorable for constructing continuous hydrodynamic lubrication was designed and studied. The paper aims to discuss these issues.

Design/methodology/approach

A new bearing bush structure with two cavities which is favorable for constructing continuous hydrodynamic lubrication was designed. The apparatus for studying the tribological behaviors of the two types of water-lubricated rubber bearings has been devised and established in the paper. The experimental studies on the tribological properties of the rubber bearings have been conducted under different loads and velocities. The eccentricity ratio of the new structure rubber bearing with two cavities was measured in experiment and the load capacity was calculated by numerical simulation.

Findings

The experimental results show that the friction coefficient decreases with increasing velocity; the friction coefficient increases sharply with the rising temperature, the friction coefficient increases at first and then decreases with increasing load for fluted rubber bearings. The numerical results were in good agreement with the experimental results. The numerical results show that complete hydrodynamic lubrication can be formed in the new designed rubber bearing with two cavities. The experimental and numerical results all indicate that there is an appropriate bearing clearance which the friction coefficient is minimum and the load capacity is maximum.

Originality/value

A new bearing bush structure with two cavities which is beneficial to constructing continuous hydrodynamic lubrication film was designed. A new apparatus for studying the tribological behaviors of the two types of water-lubricated rubber bearings has been devised and established. Experimental and numerical study on the new structure rubber bearing were conducted in the paper.

Details

Industrial Lubrication and Tribology, vol. 66 no. 2
Type: Research Article
ISSN: 0036-8792

Keywords

Article
Publication date: 29 July 2014

Wei Zhen Wang, Yan Wang, Shu Lian Yu, Lin Sun, Jing Liu and Xiu Min Wei

In view of high consumption situation of raw materials in the apparel industry due to unique and diversified style, the purpose of this paper is to investigate the application of…

Abstract

Purpose

In view of high consumption situation of raw materials in the apparel industry due to unique and diversified style, the purpose of this paper is to investigate the application of pattern transformation between clothing and tent, explore the feasibility of extending multi-functional product and provide experimental demonstration for realizing 5R (Reduce, Reevaluate, Reuse, Recycle, Rescue) design goal of garment product.

Design/methodology/approach

According to the results of market research, in order to make single product have the functions of both outdoor couple clothing and simple tent, the planar patterns of clothing and tent are compared and transformed to make them compatible with each other, then the removable multi-functional design and technique processing are adopted.

Findings

It was found that outdoor clothing and tent with similar application occasions and raw materials could realize the assumption of multi-functional product. Their combination has the functions of both clothing and tent by wearing and assembling.

Originality/value

By means of this transformation design, the diversification and enjoyment of garment styles and functions can be realized. This helps to improve the energy efficiency of raw materials and accessories by increasing the frequency of product reuse and sharing. In addition, the enjoyment design of products also helps to lead and promote ecological consumption.

Details

International Journal of Clothing Science and Technology, vol. 26 no. 4
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 26 July 2022

Kui Yin, Can Li, Oliver J. Sheldon and Jing Zhao

Drawing upon a dynamic managerial capabilities perspective, this study aims to unpack how and when chief experience officer (CEO) transformational leadership influences firm…

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Abstract

Purpose

Drawing upon a dynamic managerial capabilities perspective, this study aims to unpack how and when chief experience officer (CEO) transformational leadership influences firm innovation. Specifically, a moderated mediation model linking CEO transformational leadership to firm innovation, which includes strategic flexibility as a mediator and top management team (TMT) knowledge diversity as a moderator, is theorized and empirically tested.

Design/methodology/approach

The authors conducted a survey of 354 TMT members and 62 CEOs from 62 firms in China’s construction industry to explore these relationships. Path analysis using Mplus 7.4 was undertaken to test our proposed moderated mediation model.

Findings

The results revealed that strategic flexibility mediates the positive relationship between CEO transformational leadership and firm innovation. Additionally, TMT knowledge diversity positively moderates the relationship between CEO transformational leadership and strategic flexibility.

Research limitations/implications

Taken together, these findings help advance and deepen our understanding of the mechanisms through which CEO transformational leadership influences firm innovation and boundary conditions under which CEO transformational leadership influences strategic flexibility. At the same time, this study also contributes to the literature on strategic flexibility and the CEO-TMT interface by revealing the interactive effect of CEO transformational leadership and TMT knowledge diversity on strategic flexibility.

Originality/value

Although the positive influence of CEO transformational leadership on firm innovation has been widely recognized, the specific mechanisms underlying this effect have yet to be fully theorized. This study proposes and tests a nuanced theoretical framework linking CEO transformational leadership to firm innovation via a firm’s strategic flexibility. It also argues that TMT knowledge diversity enhances the indirect effect of CEO transformational leadership on firm innovation through strategic flexibility; that is, this indirect effect is significant when TMT diversity is high, but not when TMT diversity is low.

Details

Chinese Management Studies, vol. 17 no. 5
Type: Research Article
ISSN: 1750-614X

Keywords

Article
Publication date: 18 April 2008

Sheau‐yueh J. Chao

This paper seeks to discuss the genealogical sources for Chinese immigrants as well as the settlement of Chinese in the USA and the historical evolution of Chinese names, their…

Abstract

Purpose

This paper seeks to discuss the genealogical sources for Chinese immigrants as well as the settlement of Chinese in the USA and the historical evolution of Chinese names, their origins, arrangement and development. It aims to cover the origins of various classes of Chinese surnames, followed by the content description of a traditional genealogical book for jiapu.

Design/methodology/approach

The paper researches the various ways that a Chinese person can find out about their ancestry.

Findings

The paper reveals the roles of libraries, including serving the needs of patrons interested in genealogical research, preserving and interpreting information through oral and family history projects and collaborating with other libraries through interlibrary loan, document delivery, library consortia, collection management and international resource‐sharing.

Research limitations/implications

The study provides information on where and how to locate the genealogical resources for researching the genealogy of a Chinese family.

Originality/value

The paper analyzes the value of genealogical research as a documentary source for population history, life expectancy in a clan, marriages and family connections, as well as lineage organizations and inter‐lineage relations.

Details

Collection Building, vol. 27 no. 2
Type: Research Article
ISSN: 0160-4953

Keywords

Article
Publication date: 8 January 2018

Jun-peng Shao, Guang-dong Liu, Xiao-dong Yu, Yan-qin Zhang, Xiu-li Meng and Hui Jiang

The purpose of this paper is to describe a simulation and experimental research concerning the effect of recess depth on the lubrication performance of a hydrostatic thrust…

Abstract

Purpose

The purpose of this paper is to describe a simulation and experimental research concerning the effect of recess depth on the lubrication performance of a hydrostatic thrust bearing by constant rate flow.

Design/methodology/approach

The computational fluid dynamics and finite volume method have been used to compute the lubrication characteristics of an annular recess hydrostatic thrust bearing with different recess depths. The performances are oil recess pressure, oil recess temperature and oil film velocity. The recess depth has been optimized. A test rig is established for testing the pressure field of the structure of hydrostatic thrust bearing after recess depth optimization, and experimental results show that experimental data are basically identical with the simulation results, which demonstrates the validity of the proposed numerical simulation method.

Findings

The results demonstrate that the oil film temperature decreases and the oil film pressure first increases and then decreases with an increase in the recess depth, but oil film velocity is constant. To sum up comprehensive lubrication performance, the recess depth of 3.5 mm is its optimal value for the annular recess hydrostatic thrust bearing.

Originality/value

The computed results indicate that to get an improved performance from a constant flow hydrostatic thrust bearing, a proper selection of the recess depth is essential.

Details

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

Keywords

Article
Publication date: 21 September 2012

Gao Cuiming, Yuhong Feng and Fiona Henderson

Since the 1980s, and especially after China's entry into the World Trade Organization (WTO) in 1991, international educational collaborations have developed in China. Spurred by

Abstract

Purpose

Since the 1980s, and especially after China's entry into the World Trade Organization (WTO) in 1991, international educational collaborations have developed in China. Spurred by economic, cultural and educational factors, joint programs have become an essential supplement to Chinese education. Despite the obvious and diverse benefits brought about by joint programs, various challenges arise. The purpose of this paper is to evaluate the benefits and challenges generally and then in a more targeted way through the lens of one Sino‐Australian partnership.

Design/methodology/approach

This paper uses a case study of one joint Australia‐China program to explore the development, benefits and challenges of joint programs in China and suggest how to improve the overall quality of the joint programs which will further international collaboration of educational institutions in China.

Findings

Joint programs are a strategic component of the expansion and globalization objectives of the Chinese government. They offer more opportunities for Chinese students to receive an overseas education, enhance the research profile of Chinese universities and promote new ways of teaching and learning. For the Australian government, transnational education and the model of joint programs are helping to build Australia's research reputation, develop alternative teaching and learning ideas and promote global citizenship. Challenges include linguistic issues, financial problems, inefficient management, program assessment, qualifications, skills of teaching staff and different ways of thinking.

Practical implications

Enhancing pedagogical quality within a business paradigm is a unifying imperative.

Originality/value

The paper presents a new case study analysis for joint program educators and decision makers.

Details

On the Horizon, vol. 20 no. 4
Type: Research Article
ISSN: 1074-8121

Keywords

Article
Publication date: 3 July 2007

Ding‐Rong Qu, Yu‐Gui Zheng, Xiu Jiang and Wei Ke

The objective of the present work was to study the influence of chemical compositions of five naphthenic acids (NAs) extracted from Liaohe crude oil on their corrosivity.

Abstract

Purpose

The objective of the present work was to study the influence of chemical compositions of five naphthenic acids (NAs) extracted from Liaohe crude oil on their corrosivity.

Design/methodology/approach

Fourier‐transform infrared spectrometry and electron impact mass spectrometry were used to characterize the chemical structures and compositions if five NAs. The corrosivities of the NAs were assessed by stagnant NA corrosion (NAC) tests. An attempt was made to identify any correlation between the chemical composition of the NAs and their corrosiveness.

Findings

The acidic species in all five NA samples were saturated aliphatic and naphthenic acids and the amount of aromatic and unsaturated acids was negligible. A relationship between the carboxylic acid distribution and the molecular weight was obtained. Most of the carboxylic acids in five NAs contained 0‐3 ring structures. NAs with lower molecular weight and fewer ring structures usually were more corrosive.

Originality/value

The findings have important implications for assessing the corrosivity of acidic crude oils from various resources.

Details

Anti-Corrosion Methods and Materials, vol. 54 no. 4
Type: Research Article
ISSN: 0003-5599

Keywords

Article
Publication date: 5 June 2017

Xue-Jun Cui, Ying-Jun Zhang, Bao-Jie Dou, Xian-Guang Zeng and Xiu-Zhou Lin

This paper aims to investigate the effects of deposition time on the structure and anti-corrosion properties of a micro-arc oxidation (MAO)/Al coating on AZ31B Mg alloy.

Abstract

Purpose

This paper aims to investigate the effects of deposition time on the structure and anti-corrosion properties of a micro-arc oxidation (MAO)/Al coating on AZ31B Mg alloy.

Design/methodology/approach

The study describes the fabrication of the coating via a combined process of MAO with multi-arc ion plating. The structure, composition and corrosion resistance of the coatings were evaluated using scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction and electrochemical methods.

Findings

The Al-layer is tightly deposited with a good mechanical interlock along the rough interface due to the Al diffusion. However, the Al layer reduces the anti-corrosion of MAO-coated Mg alloy because of structural defects such as droplets and cavities, which act as channels for corrosive media infiltration towards the substrate. Fortunately, the Al layer improves the substrate corrosion resistance owing to its passive behaviour, and the corrosion resistance can be enhanced with increasing deposition time. All results indicate that a buffer layer fabricated through the duplex process improves the interfacial compatibility between the hard coating and soft Mg alloys.

Originality/value

An MAO/Al duplex coating was fabricated via a combined process of MAO and physical vapour deposition. MAO/Al duplex coatings exhibit obviously passive behaviours on AZ31 Mg alloy. The structure and corrosion resistance of MAO/Al coatings were investigated.

Details

Anti-Corrosion Methods and Materials, vol. 64 no. 4
Type: Research Article
ISSN: 0003-5599

Keywords

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