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Article
Publication date: 1 December 2005

David J. Edwards, Junli Yang, Ruel Cabahug and Peter E.D. Love

The productivity and output levels of construction plant and equipment depends in part upon a plant operator’s maintenance proficiency; such that a higher degree of proficiency…

415

Abstract

The productivity and output levels of construction plant and equipment depends in part upon a plant operator’s maintenance proficiency; such that a higher degree of proficiency helps ensure that machinery is maintained in good operational order. In the absence of maintenance proficiency, the potential for machine breakdown (and hence lower productivity) is greater. Using data gathered from plant and equipment experts within the UK, plant operators’ maintenance proficiency are modelled using a radial basis function (RBF) artificial neural network (ANN). Results indicate that the developed ANN model was able to classify proficiency at 89 per cent accuracy using 10 significant variables. These variables were: working nightshifts, new mechanical innovations, extreme weather conditions, planning skills, operator finger dexterity, years experience with a plant item, working with managers with less knowledge of plant/equipment, operator training by apprenticeship, working under pressure of time and duration of training period. It is proffered that these variables may be used as a basis for categorizing plant operators in terms of maintenance proficiency and, that their potential for influencing operator training programmes needs to be considered.

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Article
Publication date: 13 November 2024

Junli Wang, Ling Yuan and Zhihong Tan

This study explores the potential impact of enterprise social media (ESM) communication visibility on knowledge sabotage to reduce knowledge sabotage within organizations.

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Abstract

Purpose

This study explores the potential impact of enterprise social media (ESM) communication visibility on knowledge sabotage to reduce knowledge sabotage within organizations.

Design/methodology/approach

We collected data from 389 Chinese employees across three stages and used hierarchical regression analysis and the bootstrap method to test our hypotheses.

Findings

Communication visibility negatively affects knowledge sabotage, and the loss of knowledge power mediates the relationship between communication visibility and knowledge sabotage. Digital work connectivity strengthens the negative relationship between message transparency and loss of knowledge power but weakens the negative relationship between network translucence and loss of knowledge power. Therefore, digital work connectivity plays a dual role.

Practical implications

Managers can encourage employees to share their knowledge advantages through ESM and seek cross-disciplinary knowledge cooperation, which helps restrain knowledge sabotage from the source. At the same time, maintaining appropriate digital work connectivity enables employees to leverage their knowledge interaction advantages of ESM, thereby fostering their knowledge competitiveness.

Originality/value

This study is the first to reveal the internal mechanism (loss of knowledge power) through which ESM communication visibility affects knowledge sabotage and explores the boundary condition (digital work connectivity) impacting the effectiveness of communication visibility. It contributes to a deeper understanding of the inherent nature of knowledge sabotage from an information technology perspective and offers novel technical insights into its management.

Details

Internet Research, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1066-2243

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Article
Publication date: 12 December 2017

Xin Jin and Junli Yu

Owing to the importance of the investment behavior in China, the purpose of this paper is to find the influence of executive network and government governance on investment…

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Abstract

Purpose

Owing to the importance of the investment behavior in China, the purpose of this paper is to find the influence of executive network and government governance on investment efficiency.

Design/methodology/approach

The paper use China’s listed companies as sample to make an investment efficiency determinant model.

Findings

In this article, the authors find that larger executive network and higher government governance will lead to more corporate investment efficient. Furthermore, the informal institution – executive network, is not only an effective way to alleviate financing constraints, but also can solve underinvestment problem. While the improvement of local government governance can provide institutional protection, it will also be more conducive to restrain overinvestment behavior.

Research limitations/implications

The authors have not explored conduction path. Especially, the authors have not examined whether information spillover effect or the release of resources constraints in executive network plays a more important role to ease investment insufficient.

Originality/value

Under the Chinese circumstance, relationship governance can not only promote companies to improve investment efficiency, but also provide an important guarantee for sustained macroeconomic growth.

Details

China Finance Review International, vol. 8 no. 2
Type: Research Article
ISSN: 2044-1398

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Article
Publication date: 22 December 2022

Junli Shi, Zhongchi Lu, Huanhuan Xu and Jipei Cui

The purpose of this study is to present a system dynamic (SD)-based remanufacturing economic analysis model of used automobile engine under two recycling modes. The authors will…

161

Abstract

Purpose

The purpose of this study is to present a system dynamic (SD)-based remanufacturing economic analysis model of used automobile engine under two recycling modes. The authors will compare the remanufacturing cost, sales profit and sales revenue from time and space dimensions incurred in different recycling modes in the long run.

Design/methodology/approach

The remanufacturing economic analysis model is based on SD methodology. The authors can simulate the relations of impact factors on automobile engine recycling and remanufacturing and further analyze and compare the cost, sales profit and sales revenue incurred in different recycling modes in the long term.

Findings

Sinotruk Steyr engine remanufacturing in Shandong province is taken as the research case subject. The revenue, cost and profit under the two recycling modes from 2015 to 2035 are analyzed and compared. The results show that different recycling modes have significant varying influence on the economy of engine remanufacturing.

Originality/value

This economic analysis model can provide a method reference to decide the recycling mode for auto components and other product remanufacturing. Moreover, this model can guide and support the sustainable development of remanufacturing industry.

Details

Journal of Engineering, Design and Technology , vol. 22 no. 5
Type: Research Article
ISSN: 1726-0531

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Article
Publication date: 12 March 2018

Jiang Chen, Junli Zheng and Feng Xiong

The spatial resolution of seepage monitoring methods based on fiber Bragg grating (FBG) temperature sensing technology is limited by the distance between measurement points…

102

Abstract

Purpose

The spatial resolution of seepage monitoring methods based on fiber Bragg grating (FBG) temperature sensing technology is limited by the distance between measurement points. Improving the spatial resolution for a given number of measurement points is a prerequisite for popularizing this technology in the seepage monitoring of rockfill dams. The purpose of this paper is to address this problem.

Design/methodology/approach

This paper proposes a mobile-distributed seepage monitoring method based on the FBG-hydrothermal cycling seepage monitoring system. In this method, the positions of the measurement points are changed by freely dragging the FBG sensing cluster within the inner tube of a dual-tube structure, consisting of an inner polytetrafluoroethylene tube and outer polyethylene of raised temperature resistance heating tube.

Findings

A seepage velocity calibration test was carried out using the improved monitoring system. The results showed that under a constant seepage velocity, the use of the dual-tube structure enables faster cooling, and the cooling rate accelerates with an increase in the diameter of the inner tube. The use of the dual-tube structure can improve the sensitivity of the seepage evaluation index ζv to the seepage velocity. When the inner diameter increases, ζv becomes more sensitive to the seepage velocity.

Originality/value

A mobile-distributed seepage monitoring method based on FBG sensing technology is proposed in which the FBG sensors are not fixed. Instead, the positions of the measurement points are changed to improve the spatial resolution. Meanwhile, the use of the dual-tube structure in the presented monitoring system can improve its sensitivity.

Details

Sensor Review, vol. 38 no. 3
Type: Research Article
ISSN: 0260-2288

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Article
Publication date: 17 October 2008

HongPu Hu, WanNian Liang, Aimin Guo, XueMei An, Ping Zhou, JunLI Wang and Yi Lin

The aim is to focus on an automated management and evaluation system to control the operation of community health service (CHS) efficiently.

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Abstract

Purpose

The aim is to focus on an automated management and evaluation system to control the operation of community health service (CHS) efficiently.

Design/methodology/approach

On the basis of analyzing existing health laws, regulations, CHS work situation, the authors established the execution method and supervision norm of management for CHS. They used Delphi expert consultation activity and analytic hierarchy process to construct weight coefficient allocation list and synthesize evaluation models: GI=∑I=1NCiPi. The authors synthesized computer technology to design corresponding software, and then completed the spot usage.

Findings

The automated management and evaluation system for CHS has been completed. The system possesses automated management function, automated evaluation function, searching function, the functions of supervision and statistics analysis as well as the feedback. Automated management includes guide and filling‐in, checking‐up, modifying and saving, converging, submitting, examining and approving, receiving, saving to file and issuing formation, etc. Automated evaluation can rank automatically synthesized index or any selected single criterion index in the order of either high to low or low to high. The feedback function is able to be used to convey timely the state of execution, and to offer the bases for further adjustment.

Research limitations/implications

The automated evaluation makes the difficult evaluation work of daily supervision simple and maneuverable.

Practical implications

The systemization and automation of CHS management can control effectively practical operation of CHS.

Originality/value

The study is the first to establish an automated compliance management and evaluation system for Chinese CHS.

Details

Kybernetes, vol. 37 no. 9/10
Type: Research Article
ISSN: 0368-492X

Keywords

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Article
Publication date: 29 January 2020

Zheng Li, Jun Li, Jin Chen and Tsvi Vinig

This is a special issue of Chinese Management Studies and this study aims to engage with debates on innovation in China and to provide new insights for innovation research in the…

820

Abstract

Purpose

This is a special issue of Chinese Management Studies and this study aims to engage with debates on innovation in China and to provide new insights for innovation research in the context of China, seeking to develop a greater understanding of the concept of “innovation with Chinese characteristics”.

Design/methodology/approach

This study reviews the Chinese innovation management literature in general and the selected papers in this special issue in particular and proposes two new directions for future research.

Findings

The nine papers that constitute this special issue present research on important aspects of innovation in China, ranging from the effectiveness of government subsidisation for innovation, the impact of fiscal decentralisation on innovation, the role of management behaviour in promoting (or discouraging) innovation and the effects of differing business models on innovation. These papers shed valuable new light on the theory and practice of innovation in China. The papers are discussed in the context of four primary arguments about innovation management in China identified from the broader literature in the field. These relate to the pattern of China’s innovation performance over time, the reasons for its effectiveness, the role of alliances and influences of indigenous factors. It is also shown that management of the internationalisation of innovation and of efficient internal innovation are two important directions for future research on Chinese innovation in an era of de-globalisation.

Originality/value

The studies presented here provide valuable contributions to theory building in innovation research, as well as some important ideas for directions of future research on innovation in China in the new era of de-globalisation.

Details

Chinese Management Studies, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1750-614X

Keywords

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Article
Publication date: 19 May 2020

Lei Wang, Chun Zhang, Jun Li, Dong Huo and Xing Fan

This study examines how unilateral supplier transaction-specific investments (TSIs), directly and indirectly, influence international buyer opportunism and the extent to which…

671

Abstract

Purpose

This study examines how unilateral supplier transaction-specific investments (TSIs), directly and indirectly, influence international buyer opportunism and the extent to which detailed contracts enable suppliers to safeguard against international buyer opportunism. The study also examines whether relationship length affects the efficacy of detailed contracts in cross-border outsourcing relationships.

Design/methodology/approach

The hypotheses are tested by using data collected from multiple informants working for 229 manufacturing suppliers in China. Multiple regression with a three-way interaction is used to test the hypotheses.

Findings

Unilateral supplier TSIs encourage international buyer opportunism through increased supplier dependence. Contract specificity negatively moderates the effect of supplier dependence on international buyer opportunism. This moderating effect is stronger in long-term cross-border buyer–supplier relationships than in short-term ones.

Originality/value

The current study extends the cross-border outsourcing literature by examining how emerging-market suppliers in a weak power position can proactively safeguard against international buyer opportunism by using detailed contracts. Our findings show that supplier dependence mediates the relationship between unilateral supplier TSIs and international buyer opportunism; detailed contracts, however, can help dependent suppliers safeguard against international buyer opportunism. In particular, the findings highlight the importance of long-term buyer–supplier relationships that enhance the efficacy of detailed contracts.

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Article
Publication date: 3 January 2017

Xiaowei Shao, Mingxuan Song, Jihe Wang, Dexin Zhang and Junli Chen

The purpose of this paper is to present a method to achieve small satellite formation keeping operations by using the differential lift and drag to control the drift caused by J2…

379

Abstract

Purpose

The purpose of this paper is to present a method to achieve small satellite formation keeping operations by using the differential lift and drag to control the drift caused by J2 perturbation in circular or near-circular low earth orbits (LEOs).

Design/methodology/approach

Each spacecraft is equipped with five large flat plates, which can be controlled to generate differential accelerations. The aerodynamic lift and drag acting on a flat plate is calculated by the kinetic theory. To maintain the formation within tracking error bounds in the presence of J2 perturbation, a nonlinear Lyapunov-based feedback control law is designed.

Findings

Simulation results demonstrate that the proposed method is efficient for the satellite formation keeping and better accuracy advantage in comparison with classical approaches via the fixed maximum differential aerodynamic acceleration.

Research limitations/implications

Because the aerodynamic force will reduce drastically as the orbital altitude increases, the formation keeping control strategy for small satellites presented in this paper should be limited to the scenarios when satellites are in LEO.

Practical implications

The formation keeping control method in this paper can be applied to solve satellite formation keeping problem for small satellites in LEO.

Originality/value

This paper proposes a Lyapunov control strategy for satellite formation keeping considering both lift and drag forces, and simulation results show better performance with high accuracy under J2 perturbation.

Details

Aircraft Engineering and Aerospace Technology, vol. 89 no. 1
Type: Research Article
ISSN: 1748-8842

Keywords

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Article
Publication date: 10 July 2020

Songtao Huang, Jie Ye, Haozhe Wang, Baojin Li, Anwen Shen and Junli Deng

Traditional switching harmonic suppressor design methods require domain experts to adjust design parameters due to various complex performance requirements and practical…

174

Abstract

Purpose

Traditional switching harmonic suppressor design methods require domain experts to adjust design parameters due to various complex performance requirements and practical limitations in switching ripple suppressor designs. The purpose of this paper is to present a method for filter parameter design.

Design/methodology/approach

An improved non-dominated sorting genetic algorithm II (NSGA II) was used in the inductor-capacitor-inductor (LCL) filter design to find the optimal design parameters, and a method was proposed to handle the constraints by transforming the them into decision variables.

Findings

The performance of the proposed algorithm in parameter designing was verified by simulation on MATLAB and experimental results on hardware-in-the-loop plat-form with StarSim software. The results indicate that the optimization algorithm has a better effect than the traditional expert parameters on each optimization index, especially on the switching harmonic suppression.

Originality/value

The paper presents an improved multi-objective optimization algorithm with ingenious constraints handing to obtain better filter parameters and reduces switching harmonics.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 39 no. 4
Type: Research Article
ISSN: 0332-1649

Keywords

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