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Article
Publication date: 25 September 2009

Disassembly processes with disassembly matrices and effects of operations

Yuan Mao Huang and Yu‐Chung Liao

The purpose of this paper is to enhance the method developed by previous researchers. In addition to using the combined interference matrix, the combined connection matrix…

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Abstract

Purpose

The purpose of this paper is to enhance the method developed by previous researchers. In addition to using the combined interference matrix, the combined connection matrix and the combined contact matrix of product components, the disassembly sequence matrix and the combined instability matrix with platform to evaluate instability of sub‐assemblies are built, and effects of changes of sub‐assembly disassembly directions or tools and the effect of gravity are considered to obtain the best disassembly sequence for a product with many components. A computer program is generated and results of two cases are compared with those of the available studies.

Design/methodology/approach

The methodology includes the combined interference matrix, the combined contact matrix and the combined connection matrix of components for a product. The combined instability matrix of sub‐assemblies, changes of sub‐assembly disassembly direction or tools, and the effect of gravity during operation are considered. The binary number system is used to simplify relations among components of a product.

Findings

This methodology enhances the existing method and software is generated. Results of two cases are compared and show the same optimum disassembly processes as those obtained from other researchers.

Research limitations/implications

All matrices are defined by the directions of x, y and z with three axes perpendicular to each other. The computer program generated cannot be used for a product with components that must be disassembled in the directions different from the axes.

Practical implications

Two cases are used to investigate feasibility of the proposed methodology with the computer program generated. The first one is an electric drill, and the second one is a flash lighter.

Originality/value

The methodology described in this paper is feasible for study of disassembly processes of products. The software generated can be used to obtain the optimum disassembly process of products.

Details

Assembly Automation, vol. 29 no. 4
Type: Research Article
DOI: https://doi.org/10.1108/01445150910987763
ISSN: 0144-5154

Keywords

  • Production methods
  • Planning and control
  • Computer software

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Article
Publication date: 9 April 2020

Inventory management of perishable health products: a decision framework with non-financial measures

Linh Nguyen Khanh Duong, Lincoln C. Wood and William Yu Chung Wang

This research proposes a decision framework for using non-financial measures to define a replenishment policy for perishable health products. These products are perishable…

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Abstract

Purpose

This research proposes a decision framework for using non-financial measures to define a replenishment policy for perishable health products. These products are perishable and substitutable by nature and create complexities for managing inventory. Instead of a financial measure, numerous measures should be considered and balanced to meet business objectives and enhance inventory management.

Design/methodology/approach

This research applies a multi-methodological approach and develops a framework that integrates discrete event simulation (DES), analytic hierarchy process (AHP) and data envelopment analysis (DEA) techniques to define the most favourable replenishment policy using non-financial measures.

Findings

The integration framework performs well as illustrated in the numerical example; outcomes from the framework are comparable to those generated using a traditional, financial measures-based, approach. This research demonstrates that it is feasible to adopt non-financial performance measures to define a replenishment policy and evaluate performance.

Originality/value

The framework, thus, prioritises non-financial measures and addresses issues of lacking information sharing and employee involvement to enhance hospitals' performance while minimising costs. The non-financial measures improve cross-functional communication while supporting simpler transformations from high-level strategies to daily operational targets.

Details

Industrial Management & Data Systems, vol. 120 no. 5
Type: Research Article
DOI: https://doi.org/10.1108/IMDS-11-2019-0594
ISSN: 0263-5577

Keywords

  • Perishable inventory management
  • Substitutable
  • Decision systems

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Article
Publication date: 12 August 2019

User’s feedback contribution to enhance professional online community: a motivational process

Tingting Zhang, William Yu Chung Wang and Angsana A. Techatassanasoontorn

The purpose of this study is to investigate the motivational process underlying users’ intention to provide feedback on user-contributed knowledge in professional online…

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Abstract

Purpose

The purpose of this study is to investigate the motivational process underlying users’ intention to provide feedback on user-contributed knowledge in professional online communities. User feedback can serve as a means of indicating the credibility of the online content, which can help community members in their knowledge-seeking process. Adopting such a user feedback mechanism is beneficial for users to identify relevant and credible content efficiently and for an online community to sustain itself.

Design/methodology/approach

Drawing on self-determination theory, an integrated model is proposed. In this model, behavioural intention is defined as the consequence of motivational orientations whose antecedences include various social factors. The model is empirically tested using survey data collected online and the structural equation modelling techniques.

Findings

The results show that users’ intention to provide feedback is primarily influenced by autonomous motivation. Autonomous motivation is in turn affected by social factors, including reciprocity, online reputation, trust in the user involvement mechanisms and affective and normative community commitments.

Originality/value

This study adds value to prior studies by stressing the significance and feasibility of user feedback in helping members of professional online communities with their knowledge-seeking process. It also contributes to the literature on user participation in these communities by showing the efficacy of a motivational process perspective and the role of motivational orientations, in particular, in explaining users’ behavioural intention.

Details

VINE Journal of Information and Knowledge Management Systems, vol. 49 no. 3
Type: Research Article
DOI: https://doi.org/10.1108/VJIKMS-11-2018-0108
ISSN: 2059-5891

Keywords

  • Knowledge sharing
  • Quantitative research

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Article
Publication date: 1 January 1996

Electronic resources for Chinese studies in a global context

Peter Zhou

This paper is a study of the current trends and conditions of electronic resources for Chinese studies, based on a recent survey on the Internet of 29 Chinese libraries in…

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Abstract

This paper is a study of the current trends and conditions of electronic resources for Chinese studies, based on a recent survey on the Internet of 29 Chinese libraries in North America and eight Chinese libraries in China, Taiwan and Hong Kong. The survey discussed current electronic resources for Chinese studies, with a union list of major Chinese language databases currently used in libraries in Asia and the US. Current views on the use and development of electronic resources for Chinese studies were summarised.

Details

The Electronic Library, vol. 14 no. 1
Type: Research Article
DOI: https://doi.org/10.1108/eb045439
ISSN: 0264-0473

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Article
Publication date: 16 October 2017

Quality dimensions in online communities influence purchase intentions

Chung-Yu Wang, Hsiao-Ching Lee, Li-Wei Wu and Chih-Chung Liu

The purpose of this paper is to examine how quality dimensions in independently owned online brand communities influence purchase intentions via uncertainty reduction and…

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Abstract

Purpose

The purpose of this paper is to examine how quality dimensions in independently owned online brand communities influence purchase intentions via uncertainty reduction and the role of involvement.

Design/methodology/approach

This work validates the model and hypotheses through non-probabilistic sampling. The online questionnaire was made on the website of MySurvey and an invitation letter was posted to the forums. The respondents received the questionnaire items translated into Chinese. The final survey sample consisted of 235 respondents.

Findings

Empirical results confirm that as for independently owned online brand communities, their information quality and relationship quality are effective tools for influencing purchase intentions via uncertainty reduction. In addition, the authors demonstrate that involvement has a positively moderating influence on the relationship between uncertainty reduction and purchase intentions.

Originality/value

The current study moves beyond uncertainty reduction to demonstrate that information quality and relationship quality of forums influenced purchase intention via uncertainty reduction and the moderating variable such as involvement.

Details

Management Decision, vol. 55 no. 9
Type: Research Article
DOI: https://doi.org/10.1108/MD-11-2016-0822
ISSN: 0025-1747

Keywords

  • Information quality
  • Relationship quality
  • Uncertainty reduction
  • Online brand communities

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