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Article
Publication date: 4 March 2021

Zheng Ping Lee, Rahimi A. Rahman and Shu Ing Doh

The success rate of design-build (D-B) implementation in Malaysia’s private construction projects is low compared to the nation’s public projects. Thus, the purpose of…

Abstract

Purpose

The success rate of design-build (D-B) implementation in Malaysia’s private construction projects is low compared to the nation’s public projects. Thus, the purpose of this paper is to investigate the critical success factors (CSFs) for D-B implementation in Malaysian public construction projects.

Design/methodology/approach

To achieve the research objectives, 111 questionnaire survey responses from construction-related professionals were collected and analysed using multivariate analysis, including t-test, analysis of variance (ANOVA) and factor analysis.

Findings

The results indicate that while the client’s briefing effectiveness remained the top CSF among many nations, the other top CSFs in Malaysia D-B construction projects vastly differed compared to those countries. Moreover, the underlying components for successful D-B projects in Malaysia include the project management team, leader competency and “stakeholder” management.

Originality/value

This is one of the first studies that identify the CSFs for D-B implementation in the Malaysian construction industry. The outcomes provide a valuable reference and resource for academic scholars and construction practitioners to increase D-B implementation in the Malaysian private sector.

Details

Journal of Engineering, Design and Technology , vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1726-0531

Keywords

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Article
Publication date: 26 September 2019

Gu Xin, Xiao-Ri Liu, Dong-Kang Cheng, Qing-Ping Zheng, Meng-Han Li, Nan-Nan Sun and Chun-Hua Min

This paper aims to investigate the effect of lubricant viscosity model with improver on friction and lubrication of piston skirt-cylinder liner conjunction.

Abstract

Purpose

This paper aims to investigate the effect of lubricant viscosity model with improver on friction and lubrication of piston skirt-cylinder liner conjunction.

Design/methodology/approach

A dynamic calculation model is established for the piston skirt-cylinder liner conjunction of a heavy-duty commercial diesel engine, to explore the effects of two kinds of lube oil viscosity models named after polyalkyle-metacrylate-1 (PAMA1) and styrene-isoprene-copolymer (SICP) improvers on the maximum oil film viscosity, the minimum oil film thickness, the peak oil film pressure, the maximum shear rate, the friction force and the total friction power loss.

Findings

The variation trends with the crank angle of the above parameters are not changed with the difference of improvers, while obvious numerical differences are found except the maximum oil film pressure. The minimum oil film thickness and maximum shear rate of PAMA1 are larger than that of SICP, the maximum oil film viscosity of SICP is larger than that of PAMA1, which indicates that the shear-thinning effect of PAMA1 is greater, the maximum friction force on the piston of SICP is larger than that of PAMA1, and the total friction power consumption is also larger, the average friction power consumptions of SICP and PAMA1 are 385.4 and 262.8 W, respectively, with the relative difference of 31.8 per cent.

Originality/value

The influence of different lubricating oil additive models on the lubrication and friction of piston skirt-cylinder liner conjunction is simulated and analyzed.

Details

Industrial Lubrication and Tribology, vol. 72 no. 1
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 7 March 2016

Yi Sui, Ping Zheng, Peilun Tang, Fan Wu and Pengfei Wang

The purpose of this paper is to investigate a five-phase permanent-magnet synchronous machine (PMSM) that features high-power density and high-fault-tolerant capability…

Abstract

Purpose

The purpose of this paper is to investigate a five-phase permanent-magnet synchronous machine (PMSM) that features high-power density and high-fault-tolerant capability for electric vehicles (EVs).

Design/methodology/approach

The five-phase 20-slot/18-pole PMSM is designed by finite-element method. Two typical rotor structures which include Halbach array and rotor eccentricity are compared to achieve sinusoidal back electromotive force (EMF). The influence of slot dimensions on leakage inductance and short-circuit current is analyzed. The method to reduce eddy current loss of permanent magnets (PMs) is investigated. The machine performances under both healthy and fault conditions are evaluated. Finally, thermal behavior of the machine is studied by Ansys.

Findings

With both no-load and load performances considered, rotor eccentricity is proposed to reduce the harmonic contents of EMF. Increasing slot leakage inductance is an effective way to limit the short-circuit current. By segmenting PMs in circumferential direction, the PM eddy current loss is reduced and the machine efficiency is improved. With proper fault-tolerant control strategy, acceptable torque performance can be achieved under fault conditions. The proposed machine can safely operate under Class F insulation.

Originality/value

So far, many researches focus on multiphase PMSMs used in aviation fields, such as fuel pump and electric actuator. Differing from PMSMs used in aviation applications, machines for EVs require characteristics like wide speed ranges and variable operating conditions. Hence, this paper proposes a five-phase 20-slot/18-pole PMSM for EVs. The proposed design methodology is applicable to multiphase PMSMs with different slot/pole combinations.

Details

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, vol. 35 no. 2
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 1 February 2006

Jing‐li Fu, Li‐qun Chen and Xiang‐wei Chen

In this letter, based on the infinitesimal transformations with respect to the generalized coordinates and generalized momentums, we obtain the definition, determining…

Abstract

In this letter, based on the infinitesimal transformations with respect to the generalized coordinates and generalized momentums, we obtain the definition, determining equations and structure equation of the momentum‐dependent symmetry for the systems. This study directly leads to the non‐ Noether type conserved quantity for the systems. Further we also give the inverse issue of the momentum‐dependent symmetries of the systems. However, a theory of momentum‐dependent symmetries of the nonconservative Hamiltonian systems is established. Finally, an example is discussed to illustrate the results.

Details

Multidiscipline Modeling in Materials and Structures, vol. 2 no. 2
Type: Research Article
ISSN: 1573-6105

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Article
Publication date: 21 May 2009

Jing‐Lin Duanmu and Yilmaz Guney

The upsurge of Chinese and Indian outward foreign direct investment (FDI) raises an unanswered question about locational determinants of direct investment from the two…

Abstract

The upsurge of Chinese and Indian outward foreign direct investment (FDI) raises an unanswered question about locational determinants of direct investment from the two countries. Using an unbalanced bilateral FDI database, we find that Chinese and Indian FDI are attracted to countries with large market size, low GDP growth, high volumes of imports from China or India, and low corporate tax rates. We also find important differences between China and India. While Chinese FDI is drawn to countries with open economic regimes, depreciated host currencies, better institutional environments, and English speaking status, none of these factors are important for Indian FDI. Chinese FDI is also deterred by geographic distance and OCED membership. However, neither of these has any impact on Indian FDI.

Details

Journal of Asia Business Studies, vol. 3 no. 2
Type: Research Article
ISSN: 1558-7894

Keywords

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Book part
Publication date: 21 October 2019

Abstract

Details

International Business in a VUCA World: The Changing Role of States and Firms
Type: Book
ISBN: 978-1-83867-256-0

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Article
Publication date: 14 January 2020

Jing-Ping Li, Zheng-Zheng Li, Ran Tao and Chi Wei Su

The purpose of this paper is to investigate the non-linear threshold effects between trade openness and female labours to participate in the labour markets.

Abstract

Purpose

The purpose of this paper is to investigate the non-linear threshold effects between trade openness and female labours to participate in the labour markets.

Design/methodology/approach

The authors consider data for nine Asian countries from 1990 to 2016 period and perform the panel threshold regression method.

Findings

Empirical results indicate that the threshold value is occurred. With the increase of trade openess, the female labour force participation rate shows a trend of rising first and then declining. Furthermore, exports also have an asymmetric threshold effect on female labour force participation, which is partly in accordance with the discrimination model (Becker, 1957). On the other hand, imports dependency will hinder female labour force participation regardless of a threshold effect. The authors obtain similar results when the authors consider the female employment rate as substitution.

Practical implications

Specifically, increased trade openness may contribute positively or negatively towards overall female labour force participation rate (FLFPR), attributed to the relative importance of these opposing effects. Thus, when the cost reduction effect, resulting from intensified competitive pressure and comparative advantages would enhance the participation rate, the technology channel operates in the opposite direction. Therefore, from the perspective of female employment, trade openness is not the more the better.

Originality/value

This study innovatively discusses the non-linear correlation between trade openness and FLFPR and distinguishes the different contributions from exports and imports. The advanced threshold regression model assumes the existence of threshold value from trade to female employment. Thereby, targeted policies for the government should be applied to promote active female in the labour market.

Details

International Journal of Manpower, vol. 41 no. 4
Type: Research Article
ISSN: 0143-7720

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Article
Publication date: 8 February 2021

Xiaoyan Wang, Ping Li, Yi Zheng, Ling (Alice) Jiang and Zhilin Yang

Drawing on conservation of resources (COR) theory and the motivation-opportunity-ability (MOA) framework, this study examines how salespersons' self-monitoring and…

Abstract

Purpose

Drawing on conservation of resources (COR) theory and the motivation-opportunity-ability (MOA) framework, this study examines how salespersons' self-monitoring and psychological capital influence sales performance.

Design/methodology/approach

This study uses survey data from 293 salespersons employed in China and their archival sales performance to test the hypotheses posited.

Findings

The results show that both salespersons' self-monitoring and psychological capital enhance sales performance via adaptive selling. However, these elements are primarily substitutes in influencing adaptive selling. In addition, by dividing social capital into two types (i.e. family-based social capital and customer-based social capital), the results reveal that salespersons' self-monitoring enhances family-based social capital, but not customer-based social capital. Finally, customer-based social capital, but not family-based capital, improves sales performance.

Research limitations/implications

This paper extends the literature on sales force management, which examines various psychological traits and their influences on sales performance. While self-monitoring and psychological capital have been investigated separately, this research simultaneously examines these two factors by drawing on resource conservation theory. Furthermore, it explores how these psychological traits impact salespersons' ability development (i.e. adaptive selling) and capital accumulation (i.e., family-based social capital and customer-based social capital), which, in turn, affect sales performance.

Practical implications

The results offer managerial insights into sales force selection and management. In particular, managers should encourage salespersons to obtain greater customer-based social capital, which is more valuable than family-based social capital in boosting sales performance.

Social implications

The present research is also beneficial for employee psychological health management, as it seeks to illuminate the role of psychological traits, ability development and capital accumulation. It offers insights into sociological research on social capital by categorizing it into family-based and customer-based capital.

Originality/value

This paper extends the literature on salespersons' psychological traits, selling abilities and social capital by examining the impacts of self-monitoring and psychological capital on adaptive selling and social capital. Specifically, this study examines the interplay between self-monitoring and psychological capital from the perspective of resources conservation theory.

Details

Asia Pacific Journal of Marketing and Logistics, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1355-5855

Keywords

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Article
Publication date: 6 June 2019

Yanlan Mei, Ping Gui, Xianfeng Luo, Benbu Liang, Liuliu Fu and Xianrong Zheng

The purpose of this paper is to take advantage of Internet of Things (IoT) for intelligent route programming of crowd emergency evacuation in metro station. It is a novel…

Abstract

Purpose

The purpose of this paper is to take advantage of Internet of Things (IoT) for intelligent route programming of crowd emergency evacuation in metro station. It is a novel approach to ensure the crowd safety and reduce the casualties in the emergency context. An evacuation route programming model is constructed to select a suitable evacuation route and support the emergency decision maker of metro station.

Design/methodology/approach

The IoT technology is employed to collect and screen information, and to construct an expert decision model to support the metro station manager to make decision. As a feasible way to solve the multiple criteria decision-making problem, an improved multi-attributive border approximation area comparison (MABAC) approach is introduced.

Findings

The case study indicates that the model provides valuable suggestions for evacuation route programming and offers practical support for the design of an evacuation route guidance system. Moreover, IoT plays an important role in the process of intelligent route programming of crowd emergency evacuation in metro station. A library has similar structure and crowd characteristics of a metro station, thus the intelligent route programming approach can be applied to the library crowd evacuation.

Originality/value

The highlights of this paper are listed as followings: the accuracy and accessibility of the metro station’s real-time information are improved by integrating IoT technology with the intelligent route programming of crowd emergency evacuation. An improved MABAC approach is introduced to the expert support model. It promotes the applicability and reliability of decision making for emergency evacuation route selection in metro station. It is a novel way to combine the decision-making methods with practice.

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Article
Publication date: 28 February 2019

Wei-Fen Chen, Xue Wang, Haiyan Gao and Ying-Yi Hong

The purpose of this paper is to explore some specific, current social phenomena in China that may influence consumers’ ethical beliefs and practices, focusing on how some…

Abstract

Purpose

The purpose of this paper is to explore some specific, current social phenomena in China that may influence consumers’ ethical beliefs and practices, focusing on how some top-down, social and political changes could shape consumer behavior that needs to be understood in the Chinese context.

Design/methodology/approach

Extensive literature was critically reviewed to explore recent macro-societal reforms in China and their impact on consumers’ (un)ethical practices.

Findings

The authors lay out how China, a government-led society, underwent a series of political reforms resulting in demographic shifts that differentiate it from its western, industrialized counterparts. The authors connect these societal changes with Chinese characteristics to consumers’ ethical evaluations, forming a new angle to understand consumer ethics in China. The authors also draw on two empirical examples to illustrate the argument.

Originality/value

While consumer ethics are often explained by either cultural factors or individual variations, the authors discuss how one’s ethical practice is shaped by one’s social position, which is a product of national-level public policy. The discussions have ramifications for the study of consumers’ social class and ethical practices because they take into account the elusive social positions and ambiguous social class consciousness of the Chinese population that have resulted from social mobility. The discussions may give practitioners a better understanding of the ethical rationale behind consumers’ changing lifestyles especially in the Chinese context.

Details

Asia Pacific Journal of Marketing and Logistics, vol. 31 no. 3
Type: Research Article
ISSN: 1355-5855

Keywords

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