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Article
Publication date: 20 August 2018

Liping Wang, Pu Zhang, Pei Zhang, Rongbo Li, Yanke Zhang and Yueqiu Wu

Public–private partnership (PPP) projects are increasingly significant in many countries. The purpose of this paper is to assess the impact of critical success factors (CSFs) on…

Abstract

Purpose

Public–private partnership (PPP) projects are increasingly significant in many countries. The purpose of this paper is to assess the impact of critical success factors (CSFs) on PPP projects and comprehensively consider the interrelations and interaction among dimensions and factors to achieve a better understanding of PPP project management.

Design/methodology/approach

An evaluation index system for PPP projects such as the presented case study is proposed based on a literature review and a survey. Then, interpretative structural modeling is used to transform the CSFs dimension into a multi-level hierarchical model to reflect the driven-dependency relation of each dimension; the fuzzy analytic network process model optimized by moment estimation theory is used to investigate the impact of CSFs by considering their internal impact.

Findings

Regarding the project used as the case study, the driving force and dependence for driving layer and dependent layer are determined. Moreover, in driving layer, efficient and well-structured payment mechanism is the most important CSF if considering the internship and interaction among CSFs, and efficient and well-structured payment mechanism and good governance provide most positive interaction; in dependent layer, population of beneficiaries is the most important CSF if considering the internship and interaction among CSFs, and public client’s satisfaction provides most positive interaction.

Originality/value

This paper developed an evaluation model to explore the interrelationships of dimensions and factors and then determine the impact of CSFs. The model propose in this paper relaxes the independence assumptions of traditional methods and is more in line with reality; besides, weighting method is optimized to obtain more objective and reasonable evaluation results. Through an empirical study, the validity of the model has been verified; therefore, the study can help project stakeholders better understand the CSFs and further improve project performance.

Details

Engineering, Construction and Architectural Management, vol. 25 no. 9
Type: Research Article
ISSN: 0969-9988

Keywords

Article
Publication date: 20 March 2017

Yuzhe Liu, Jun Wu, Liping Wang, Jinsong Wang, Dong Wang and Guang Yu

The purpose of this study is to develop a modified parameter identification method and a novel measurement method to calibrate a 3 degrees-of-freedom (3-DOF) parallel tool head…

Abstract

Purpose

The purpose of this study is to develop a modified parameter identification method and a novel measurement method to calibrate a 3 degrees-of-freedom (3-DOF) parallel tool head. This parallel tool head is a parallel mechanism module in a five-axes hybrid machine tool. The proposed parameter identification method is named as the Modified Singular Value Decomposition (MSVD) method. It aims to overcome the difficulty of choosing the algorithm parameter in the regularization identification method. The novel measurement method is named as the vector projection (VP) method which is developed to expand the measurement range of self-made measurement implements.

Design/methodology/approach

Newton Iterative Algorithm based on Least Square Method is analyzed by using the Singular Value Decomposition method. Based on the analysis result, the MSVD method is proposed. The VP method transforms the angle measurement into the displacement measurement by taking full advantage of the ability that the 3-DOF parallel tool head can move in the X – Y plane.

Findings

The kinematic calibration approach is verified by calibration simulations, a Rotation Tool Center Point accuracy test and an experiment of machining an “S”-shaped test specimen.

Originality/value

The kinematic calibration approach with the MSVD method and VP method could be successfully applied to the 3-DOF parallel tool head and other 3-DOF parallel mechanisms.

Details

Industrial Robot: An International Journal, vol. 44 no. 2
Type: Research Article
ISSN: 0143-991X

Keywords

Article
Publication date: 16 January 2017

Dong Wang, Jun Wu, Liping Wang, Yuzhe Liu and Guang Yu

The purpose of this paper is to describe and evaluate the time-varying and coupling dynamic characteristics of a 3-DOF parallel tool head.

Abstract

Purpose

The purpose of this paper is to describe and evaluate the time-varying and coupling dynamic characteristics of a 3-DOF parallel tool head.

Design/methodology/approach

From the view of control, a new dynamic index of a 3-DOF parallel tool head is proposed based on the dynamic model in the joint space. This index can reflect the time-varying and coupling dynamic characteristics which are the main characteristics of the parallel mechanisms, and its distribution in the whole workspace is also given. Through comparison of the dynamic load (driving current) of each driving shaft, a series of experiments is designed and carried out on a prototype to validate the effectiveness of the dynamic analysis. The tracking error of each driving shaft has also been taken into consideration.

Findings

The simulations of the index have the same variation law with the experimental results. The dynamic load of the driving shaft becomes larger with the increase of the dynamic index, and the dynamic performance becomes worse at the same time.

Originality/value

The main dynamic characteristics of the 3-DOF parallel tool head can be described and evaluated through this work.

Details

Industrial Robot: An International Journal, vol. 44 no. 1
Type: Research Article
ISSN: 0143-991X

Keywords

Article
Publication date: 18 June 2019

Xingjun Wang, Zhuoran Yang, Feifei Xu and Liping Wang

The microcutting performance of the 10B/Al composite is significantly poor because of the existence of hard boron particles. The effects of cutting parameters, including uncut…

Abstract

Purpose

The microcutting performance of the 10B/Al composite is significantly poor because of the existence of hard boron particles. The effects of cutting parameters, including uncut chip thickness and cutting speed, on the material removal mechanism and surface generation are investigated to improve the surface quality.

Design/methodology/approach

The 2D finite element model, which includes a rigid cutting tool, a reinforced phase, a matrix and a dense layer, is established. The effects of uncut chip thickness on material removal mechanism and surface generation are analyzed from a probabilistic perspective. The relationship between the uncut chip thickness and the probability in which the machined surface will have a better surface quality is constructed. A Gaussian distribution formula is applied to describe the machined surface quality.

Findings

Two representative particle-removal modes, namely, cutting-through and pulling-out modes, are observed. For cutting-through mode, when the relative cutting location is small, better surface quality is obtained. For pulling-out mode, the quality of the machined surface gradually improves because the further increase of the relative cutting location reduces the height of the generated pit and scratches. The microcutting at high cutting speed tends to suppress the scratch phenomenon. The best surface quality will be obtained at small uncut chip thickness and high cutting speed.

Originality/value

The surface quality generated in microcutting of the 10B/Al composite can be improved by optimizing the cutting parameters and controlling the particle-removal modes based on the proposed Gaussian distribution formula.

Details

Industrial Lubrication and Tribology, vol. 71 no. 5
Type: Research Article
ISSN: 0036-8792

Keywords

Article
Publication date: 20 June 2022

XuJin Lang, Liping Wang, Xin Du, Lixia Li and Dongya Zhang

This paper aims to synthesize a novel alkanolamine borate and explore the performance of as a copper wire drawing oil.

Abstract

Purpose

This paper aims to synthesize a novel alkanolamine borate and explore the performance of as a copper wire drawing oil.

Design/methodology/approach

In this paper, a copper wire drawing oil (CU-KL) was formulated by using a novel alkanolamine borate, naphthenic base oil, fatty alcohol polyoxyethylene ether and palm oil. The tribological performance of CU-KL and commercial copper wire drawing oils (CU-DRB and CU-8010) was investigated

Findings

Under applied loads of 5 N-15 N, the average friction coefficient of CU-KL was 29.4%, 5.4% and 25.3% lower than that of CU-DRB, respectively. At sliding speed of 1000–5000 rpm, the average friction coefficient of CU-KL was reduced by 14.3%, 6% and 10.3% compared with CU-DRB, respectively. Through scanning electron microscope and energy dispersive spectrometry, CU-KL can form B-containing compound at the contact interface, which could synergistically enhance the lubrication effect and improve the wear resistance.

Originality/value

The properties of CU-KL under different test condition were studied, and the findings are of great significance for the application of alkanolamine borate in copper wire drawing oil.

Details

Industrial Lubrication and Tribology, vol. 74 no. 7
Type: Research Article
ISSN: 0036-8792

Keywords

Abstract

Details

Quality Services and Experiences in Hospitality and Tourism
Type: Book
ISBN: 978-1-78756-384-1

Abstract

Details

Quality Services and Experiences in Hospitality and Tourism
Type: Book
ISBN: 978-1-78756-384-1

Book part
Publication date: 12 October 2018

Saerom Wang, Liping A. Cai and Xinran Lehto

This chapter investigates the antecedents of individuals’ emotional outcomes from their dining-away-from-home experiences and conceptualizes how food and emotions are related and…

Abstract

This chapter investigates the antecedents of individuals’ emotional outcomes from their dining-away-from-home experiences and conceptualizes how food and emotions are related and how travel and emotions are associated. The study applies the stimulus-response theory to set up the premise that emotions that individuals experience while dining out comprise a pivotal part of their emotional well-being and their emotions can be triggered by stimuli encountered on trips and in other away-from-home situations. Cognitive appraisal, arousal, and other causes that are responsible for awakening affective responses are utilized in developing six propositions regarding individuals’ emotional outcomes in travel and dining contexts. Theoretical and practical implications are suggested following the discussions on these propositions.

Details

Quality Services and Experiences in Hospitality and Tourism
Type: Book
ISBN: 978-1-78756-384-1

Keywords

Book part
Publication date: 25 August 2022

Lei Dong, Y. Ken Wang and Kai Du

This study examines whether the source from which nonprofessional investors obtain corporate social responsibility (CSR) disclosure influences their investment-related judgments…

Abstract

This study examines whether the source from which nonprofessional investors obtain corporate social responsibility (CSR) disclosure influences their investment-related judgments and decisions and whether that influence depends on the company's financial performance. In an experiment, we find an asymmetrical effect of information source that varies with financial performance. In particular, information source affects investors' management credibility judgments when the firm announces unfavorable earnings result but not when the announced result is favorable. The mediation analysis reveals that investors' management credibility judgments mediate the joint effect of information source and financial performance on investors' investment decisions. Our findings highlight that the effectiveness of CSR communication can be complicated and that investors are sensitive to other factors that exist in the communication setting, such as the context in which CSR is disclosed (contextual factor) and information source of CSR disclosures (attributional factor).

Details

Advances in Accounting Behavioral Research
Type: Book
ISBN: 978-1-80382-802-2

Keywords

Article
Publication date: 16 January 2009

Bana Abuzayed, Philip Molyneux and Nedal Al‐Fayoumi

This paper examines whether earnings and its components are relevant and sufficient to bridge the gap between banks' market and book values, and also considers if bank efficiency…

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Abstract

Purpose

This paper examines whether earnings and its components are relevant and sufficient to bridge the gap between banks' market and book values, and also considers if bank efficiency is “value relevant” for banks valuation.

Design/methodology/approach

This paper follows the value relevance literature methodology which tests for the difference between book and market values using a variety of indicators including net income and its components as well as bank efficiency (derived using DEA) and risk indicators. The regression models are estimated using OLS, random and fixed effects approaches for a sample of listed Jordanian banks between 1993 and 2004.

Findings

The main findings of this paper are twofold. First, it is found that earnings (and its components) are value relevant and explain the gap between market and book values. Secondly, cost efficiency, as an economic performance measure, provides incremental information, not contained directly in banks financial statements, to the market. Overall it is found that the components of net income are more important than aggregate net income in explaining bank value. Furthermore, bank operational efficiency adds incremental information in explaining the gap between market and book value. These results support the view that stock prices aggregate signals received by the market as well as from firm's accounting systems.

Practical implications

The study shows that bank efficiency indicators (along with more traditional accounting measures) help explain market values.

Originality/value

This is one of only a limited number of studies that link bank efficiency to market valuation. It is the first, we believe, to do this for banks operating in an emerging economy.

Details

Managerial Finance, vol. 35 no. 2
Type: Research Article
ISSN: 0307-4358

Keywords

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