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Article
Publication date: 12 January 2022

Chia-Hung Hung, Tunay Turk, M. Hossein Sehhat and Ming C. Leu

This paper aims to present the development and experimental study of a fully automated system using a novel laser additive manufacturing technology called laser foil printing…

Abstract

Purpose

This paper aims to present the development and experimental study of a fully automated system using a novel laser additive manufacturing technology called laser foil printing (LFP), to fabricate metal parts layer by layer. The mechanical properties of parts fabricated with this novel system are compared with those of comparable methodologies to emphasize the suitability of this process.

Design/methodology/approach

Test specimens and parts with different geometries were fabricated from 304L stainless steel foil using an automated LFP system. The dimensions of the fabricated parts were measured, and the mechanical properties of the test specimens were characterized in terms of mechanical strength and elongation.

Findings

The properties of parts fabricated with the automated LFP system were compared with those of parts fabricated with the powder bed fusion additive manufacturing methods. The mechanical strength is higher than those of parts fabricated by the laser powder bed fusion and directed energy deposition technologies.

Originality/value

To the best knowledge of authors, this is the first time a fully automated LFP system has been developed and the properties of its fabricated parts were compared with other additive manufacturing methods for evaluation.

Details

Rapid Prototyping Journal, vol. 28 no. 6
Type: Research Article
ISSN: 1355-2546

Keywords

Article
Publication date: 12 February 2018

ChienHsing Wu, Shu-Chen Kao and Chia-Hung Shih

This paper aims to examine the role of the creation task–technology fit (CTTF) in the knowledge creation performance (KCP). The creation task features represented by goal-driven…

Abstract

Purpose

This paper aims to examine the role of the creation task–technology fit (CTTF) in the knowledge creation performance (KCP). The creation task features represented by goal-driven, goal-free and goal-frame modes (GDM, GFM and GRM) and information and communication technology (ICT) supportive features are considered. The moderation effect of cognitive style represented by analytical and intuitive styles is explored. Contributions and implications are addressed.

Design/methodology/approach

The literature review on creation task, ICT, cognitive behavior and fit theory, and the research gap with respect to the antecedents of KCP are presented. The research arguments are then hypothesized and the research model developed to describe that the proposed role is examined empirically.

Findings

Research findings are obtained on the basis of the data analysis of 258 valid subjects from research institutes as well as manufacturing and service industries. The effect of CTTF on creation outcomes is significantly confirmed. The ICT supportive functions are unlikely significantly related to CTTF for the analysis-styled group, but the intuition-styled group shows a likely significance because of the different means of dealing with information and knowledge processing. The analysis-styled group disagrees with the significant link of the GDM with CTTF, whereas the intuition-styled group presents the significant effects of GDM, GFM and GRM on CTTF.

Originality/value

The unique features of knowledge creation differentiate it from other tasks. With respect to whether the knowledge creation task presented by goal is defined or not, and how ICT better suits the creation task features to benefit the creation outcomes are yet to be discussed. The individual cognitive style is confirmed to alternate the effect of ICT and GDM on CTTF in the proposed model. The research findings are particularly obvious because a transition gap, less covered by the literature, might exist with regard to the perception connection of knowledge creation service providers, agencies, consultants and context creators.

Details

VINE Journal of Information and Knowledge Management Systems, vol. 48 no. 1
Type: Research Article
ISSN: 2059-5891

Keywords

Article
Publication date: 18 March 2024

Yu-Xiang Wang, Chia-Hung Hung, Hans Pommerenke, Sung-Heng Wu and Tsai-Yun Liu

This paper aims to present the fabrication of 6061 aluminum alloy (AA6061) using a promising laser additive manufacturing process, called the laser-foil-printing (LFP) process…

Abstract

Purpose

This paper aims to present the fabrication of 6061 aluminum alloy (AA6061) using a promising laser additive manufacturing process, called the laser-foil-printing (LFP) process. The process window of AA6061 in LFP was established to optimize process parameters for the fabrication of high strength, dense and crack-free parts even though AA6061 is challenging for laser additive manufacturing processes due to hot-cracking issues.

Design/methodology/approach

The multilayers AA6061 parts were fabricated by LFP to characterize for cracks and porosity. Mechanical properties of the LFP-fabricated AA6061 parts were tested using Vicker’s microhardness and tensile testes. The electron backscattered diffraction (EBSD) technique was used to reveal the grain structure and preferred orientation of AA6061 parts.

Findings

The crack-free AA6061 parts with a high relative density of 99.8% were successfully fabricated using the optimal process parameters in LFP. The LFP-fabricated parts exhibited exceptional tensile strength and comparable ductility compared to AA6061 samples fabricated by conventional laser powder bed fusion (LPBF) processes. The EBSD result shows the formation of cracks was correlated with the cooling rate of the melt pool as cracks tended to develop within finer grain structures, which were formed in a shorter solidification time and higher cooling rate.

Originality/value

This study presents the pioneering achievement of fabricating crack-free AA6061 parts using LFP without the necessity of preheating the substrate or mixing nanoparticles into the melt pool during the laser melting. The study includes a comprehensive examination of both the mechanical properties and grain structures, with comparisons made to parts produced through the traditional LPBF method.

Details

Rapid Prototyping Journal, vol. 30 no. 4
Type: Research Article
ISSN: 1355-2546

Keywords

Article
Publication date: 6 July 2010

Chung‐Kai Li and Chia‐Hung Hung

The purpose of this study is to investigate how information literacy can enhance job performance in the workplace setting.

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Abstract

Purpose

The purpose of this study is to investigate how information literacy can enhance job performance in the workplace setting.

Design/methodology/approach

Building on extant research, an integrated framework in which information literacy is related to person‐job fit which in turn influences job performance is proposed. A survey questionnaire was administered to a convenience sample of 427 current employees in financial institutions in Taiwan. Structural equation modeling was used to test the hypotheses.

Findings

Results indicate that there is a positive relationship between dimensions of traditional literacy and computer literacy toward person‐job fit. In addition person‐job fit is an effective predictor of job performance. Finally person‐job fit partially mediates the relationship between information literacy and job performance.

Originality/value

This study highlights the importance of information literacy when predicting job performance. Managers could benefit by understanding the antecedents of person‐job fit in a practical sense for organizations' favorable outcomes.

Details

Journal of Workplace Learning, vol. 22 no. 5
Type: Research Article
ISSN: 1366-5626

Keywords

Article
Publication date: 1 February 2011

Lynette M. McDonald and Chia Hung Lai

Scant research has investigated retail banking customers' reactions to different corporate social responsibility (CSR) initiatives. This study seeks to investigate whether…

7451

Abstract

Purpose

Scant research has investigated retail banking customers' reactions to different corporate social responsibility (CSR) initiatives. This study seeks to investigate whether Taiwanese retail banking customers prefer corporate social responsibility (CSR) initiatives that favour themselves or other stakeholder groups (community, environment), and whether these initiatives impact customer attitude and behavioural intentions.

Design/methodology/approach

Using an experimental survey design and a snowball sampling technique, 130 Taiwanese banking customers answered questionnaires examining attitude and behaviour in response to three different CSR initiatives.

Findings

Customer‐centric initiatives more powerfully impacted banking customers' attitude to the bank and behavioural intentions than environmental or philanthropic initiatives. However, the results were significant only for the difference between customer‐centric and environmental initiatives.

Originality/value

This is the first research examining banking customers' attitude and behaviour in response to different CSR initiatives in a Taiwanese setting. It has implications for banks developing CSR strategies.

Details

International Journal of Bank Marketing, vol. 29 no. 1
Type: Research Article
ISSN: 0265-2323

Keywords

Article
Publication date: 25 November 2013

Jyh-Shen Chiou, Arlene Chi-Fen Hsu and Chia-Hung Hsieh

The goal of this study is to investigate the relationships among brand attachment, online source credibility, and severity of negative online information on perceived negative…

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Abstract

Purpose

The goal of this study is to investigate the relationships among brand attachment, online source credibility, and severity of negative online information on perceived negative change in brand evaluation and perceived brand risk.

Design/methodology/approach

A 2×2×2 experiment was conducted to explore the effects of brand attachment (low or high), online source credibility (low or high), and online information severity (low or high) on perceived negative change in brand evaluation and perceived brand risk.

Findings

The results showed that the severity of negative online information affects perceived negative change in brand evaluation and perceived brand risk significantly. However brand attachment can reduce the effects of negative online information on perceived negative change in brand evaluation and perceived brand risk significantly. The results also showed that the effect of the severity of negative online information on perceived negative change in brand evaluation and perceived brand risk is moderated by online source credibility.

Originality/value

In addition to the main effects in the proposed research model, it is the first study to explore the moderating effects of brand attachment and online source credibility on the relationship between negative online information and perceived negative change in brand evaluation and perceived brand risk.

Details

Online Information Review, vol. 37 no. 6
Type: Research Article
ISSN: 1468-4527

Keywords

Article
Publication date: 11 April 2008

Chia‐Hung Lin, Chia‐Wei Yen, Jen‐Shin Hong and Samuel Cruz‐Lara

The purpose of this paper is to show how previous studies have demonstrated that non‐professional users prefer using event‐based conceptual descriptions, such as “a woman wearing…

Abstract

Purpose

The purpose of this paper is to show how previous studies have demonstrated that non‐professional users prefer using event‐based conceptual descriptions, such as “a woman wearing a hat”, to describe and search images. In many art image archives, these conceptual descriptions are manually annotated in free‐text fields. This study aims to explore technologies to automate event‐based knowledge extractions from these free‐text image descriptions.

Design/methodology/approach

This study presents an approach based on semantic role labeling technologies for automatically extracting event‐based knowledge, including subject, verb, object, location and temporal information from free‐text image descriptions. A query expansion module is applied to further improve the retrieval recall. The effectiveness of the proposed approach is evaluated by measuring the retrieval precision and recall capabilities for experiments with real life art image collections in museums.

Findings

Evaluations results indicate that the proposed method can achieve a substantially higher retrieval precision than conventional keyword‐based approaches. The proposed methodology is highly applicable for large‐scale collections where the image retrieval precision is more critical than the recall.

Originality/value

The study provides the first attempt in literature for automating the extraction of event‐based knowledge from free‐text image descriptions. The effectiveness and ease of implementation of the proposed approach make it feasible for practical applications.

Details

The Electronic Library, vol. 26 no. 2
Type: Research Article
ISSN: 0264-0473

Keywords

Article
Publication date: 4 September 2009

Yi‐Bin Chiu and Chia‐Hung Sun

Despite a growing interest in research, no existing study explores the nature of, and the relationship between, the real exchange rate and trade imbalance between Taiwan and…

1063

Abstract

Purpose

Despite a growing interest in research, no existing study explores the nature of, and the relationship between, the real exchange rate and trade imbalance between Taiwan and China. These economies were admitted to the World Trade Organization in late 2001 (China) and in January 2002 (Taiwan). This study aims to redress this deficiency.

Design/methodology/approach

Using Johansen's cointegration approach and bilateral trade data, the study reveals overwhelming evidence of a stable long‐run relationship of the real exchange rate and bilateral trade balance between Taiwan and its trading partners: China, the USA, Japan, Korea, Hong Kong and Singapore.

Findings

The evidence indicates that the currency depreciation of the New Taiwan dollar improves Taiwan's bilateral trade balance, except with China.

Originality/value

The findings imply that Taiwan cannot resolve the cross‐Strait trade imbalance alone via the currency depreciation, and macroeconomic adjustments, including application of the WTO rules, currency exchange and imports of Chinese goods, need to be negotiated on both sides of the Taiwan Strait.

Details

Journal of Economic Studies, vol. 36 no. 4
Type: Research Article
ISSN: 0144-3585

Keywords

Article
Publication date: 29 June 2012

Chung‐Kai Li and Chia‐Hung Hung

This study aims to examine the relations between teachers' perception of parental involvement and teacher satisfaction. It further aims to investigate how this relationship may be…

1904

Abstract

Purpose

This study aims to examine the relations between teachers' perception of parental involvement and teacher satisfaction. It further aims to investigate how this relationship may be moderated by interpersonal personality traits.

Design/methodology/approach

A questionnaire was conducted; participants were 572 classroom teachers who teach at public elementary schools in Taiwan.

Findings

Hierarchical regression results indicated that parental involvement at home was considered the most effective factor influencing teachers' satisfaction, followed by teacher‐parent contact. Parental involvement at school was less important. Furthermore, extraversion moderates the relationship partially; teachers low in extraversion perceived home‐based involvement associated with teachers' satisfaction more strongly than those high in extraversion. In contrast, the study found no moderating effect for agreeable teachers.

Originality/value

This article presents an original empirical study that expands the model of parental involvement in order to improve understanding of how teacher's perception of parent involvement is linked to teacher satisfaction.

Details

Journal of Educational Administration, vol. 50 no. 4
Type: Research Article
ISSN: 0957-8234

Keywords

Article
Publication date: 3 July 2009

Chung‐Kai Li and Chia‐Hung Hung

This paper aims to investigate how marketing tactics can enhance parents' loyalty in the educational context. Building on extant research, it proposes an integrated framework in…

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Abstract

Purpose

This paper aims to investigate how marketing tactics can enhance parents' loyalty in the educational context. Building on extant research, it proposes an integrated framework in which perceived marketing tactics are related to school image, which in turn is related to parents' loyalty.

Design/methodology/approach

Five marketing tactics are selected. A questionnaire is constructed, and data are collected from 1,200 parents of schoolchildren studying in 60 elementary schools in Taiwan. A multiple regression analysis is conducted to analyze the data.

Findings

The results show that the selected marketing tactics all significantly and meaningfully predicted the perception of school image, however promotion tactics were the most effective strategy. In addition school image is an effective predictor of parents' behavior. Finally school image mediates the relationship between marketing tactics and parents' loyalty.

Originality/value

The finding suggests that school administrators can use marketing tactics in order to enhance school image that in turn leads to parents' school choice and word‐of‐mouth.

Details

Journal of Educational Administration, vol. 47 no. 4
Type: Research Article
ISSN: 0957-8234

Keywords

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