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1 – 10 of 118
Article
Publication date: 18 April 2017

Chien-Hsuan Chang, Hung-Liang Cheng and En-Chih Chang

A typical photovoltaic grid-connection power system usually consists of multi-stage converters to perform multiple functions simultaneously. To simplify system configuration…

Abstract

Purpose

A typical photovoltaic grid-connection power system usually consists of multi-stage converters to perform multiple functions simultaneously. To simplify system configuration, reduce cost and improve conversion efficiency, this paper aims to develop a buck–boost-type inverter. The proposed inverter has both step-up and step-down functions, so that it is suitable for applications with wide voltage variation. As only one power switch operates with high frequency at one time, switching losses can significantly be reduced.

Design/methodology/approach

A step-up/down inverter is developed by adopting a buck-interleaved buck–boost (BuIBB) DC-DC converter and connecting with an H-bridge unfolding circuit with line-commutated operation.

Finding

The proposed circuit can work functionally as either a buck-type or boost-type inverter, so that partial energy can be directly delivered to output to improve efficiency. The input current is shared by two inductors, leading to the reduction of current stresses.

Research limitations/implications

To apply the proposed inverter to micro-inverter applications in the future, developing a step-up/down inverter with a higher conversion ratio will be considered.

Practical implications

A laboratory prototype is built accordingly to verify the feasibility of the proposed inverter. The experimental results are presented to show the effectiveness.

Originality/value

This paper proposes a step-up/down inverter by using the BuIBB converter, which is innovatively studied.

Details

Engineering Computations, vol. 34 no. 2
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 31 January 2022

Hsuan Hsuan Chang and Chin Chung Chiang

This study aims to investigate the effect of virtual reality (VR) as a communication tool for advertising on tourism destination image and the changes in destination attitude…

1817

Abstract

Purpose

This study aims to investigate the effect of virtual reality (VR) as a communication tool for advertising on tourism destination image and the changes in destination attitude, clarifying how flow experience affects destination image, and examining how destination image mediates the effect of flow experience on attitude changes.

Design/methodology/approach

A survey was administered to collect data from 342 study participants who watched a tourism destination marketing video through HTC VR vive gear. A research model tested data collected from participants using confirmatory factor analysis and structural equation modeling by using partial least squares structural equation modeling software.

Findings

The results found that two factors (friendliness and telepresence) of flow experience in VR can positively affect destination image. Destination image has a significant indirect effect on how flow experience influences attitude change.

Originality/value

As tourism destinations are faced with strategic decisions about investment in different VR platforms or some other technologies, understanding how individuals respond to various VR stimuli is of practical importance. Therefore, this study’s findings provide valuable information for tourism industry practitioners.

虚拟现实是否能成为目的地营销的有效工具?一项基于沉浸理论视角的研究

研究目的

本研究旨在探索虚拟现实(VR)作为一项营销沟通工具来研究对目的地形象, 目的地态度改变, 诠释心流体验如何对目的地形象的影响, 以及目的地形象在心流体验对态度改变的中介作用的影响。

研究设计/方法/途径

本研究从342位观看了由HTC 提供的VR虚拟现实 VIVE 装备对旅游景区营销视频的参与者采集调研数据。调研数据由验证性因子分析和结构方程(PLS-SEM软件)来测试研究模型。

研究发现

研究结果显示由VR产生的基于心流体验的两个因子(友好程度和远程呈现)可以对目的地形象产生正面影响。研究显示目的地形象是心流体验影响态度变化的中介因素。

研究原创性/价值

由于旅游目的地面临着关于投资于不同VR 平台或者其他科技工具的战略性决策, 了解个体如何对各种VR刺激因素进行反应变得尤其重要。因此本研究结论为旅游业内人士提供了有价值信息。

Details

Journal of Hospitality and Tourism Technology, vol. 13 no. 3
Type: Research Article
ISSN: 1757-9880

Keywords

Article
Publication date: 7 August 2018

Wen-Jye Shyr, Ya-Ling Pan, Chin-Chung Huang and Shu-Hsuan Chang

The purpose of this paper is to focus on the development of competences for use by professional teppanyaki chefs in food and beverage education in Taiwan.

Abstract

Purpose

The purpose of this paper is to focus on the development of competences for use by professional teppanyaki chefs in food and beverage education in Taiwan.

Design/methodology/approach

The research methodology includes the Delphi technique and incorporates interviews with three types of experts: instructors from culinary departments at a university, seasoned teppanyaki professionals and owners of teppanyaki establishments. An analysis of the responses provided by these industry experts led to identification of four dimensions of competences needed by teppanyaki chefs: knowledge, technique, affect and attitude. The K-S test involves using a z-test on ordinal variables for single samples to determine whether the sample distribution diverges from the frequency distribution. The z-score is greater than 1.96 which implies significance and consistency.

Findings

This study analyzed the responses provided by the interviewed experts to identify and extract competences for teppanyaki chefs. The extracted competences comprise four dimensions (knowledge, technique, affect and attitude), 16 work-related tasks and 74 skills items.

Originality/value

This study includes 16 work-related tasks, and 74 competences. The study recommends the establishment of an organization for competence certification to act as the authority for teppanyaki skill certification. Such an organization could utilize the results from this study as a reference, as could culinary departments at vocational institutes as well as other teppanyaki training courses offered in Taiwan.

Details

British Food Journal, vol. 120 no. 8
Type: Research Article
ISSN: 0007-070X

Keywords

Article
Publication date: 4 September 2019

Yih-Lin Cheng, Chih-Hsuan Chang and Chunliang Kuo

The material-jetting-type (MJ) 3-D printing technology has advantages in resolution and color printing. During the printing process, a leveling technique is needed to precisely…

Abstract

Purpose

The material-jetting-type (MJ) 3-D printing technology has advantages in resolution and color printing. During the printing process, a leveling technique is needed to precisely control the thickness and flatness of each layer. Roller-type leveling mechanism has been adopted in commercial MJ 3-D printers, but it is lack of research on roller leveling process parameters and establishing experimental procedures. Therefore, in this study, a roller-type leveling mechanism for a MJ color 3 D printer was developed, and experimental approaches were utilized to determine process parameters.

Design/methodology/approach

The roller-type leveling mechanism was chosen to provide functions of flattening and removal of excess material. The parameters studied were roller speed and rotational direction. Surface roughness, Ra, of printed single-layered specimens was measured at 15 locations for plane roughness and along five lines for line roughness to evaluate the leveling results. Adopting suitable parameters, color samples with and without leveling were printed for comparison and verification.

Findings

According to plane roughness results, forward rotation achieved better leveling. Plane roughness was the major criteria to determine roller speed with the assistance of standard deviation of line roughness. The best parameters of the self-developed MJ color 3-D printer were found to be rolling forward at 1,100 rpm. In addition, printed color samples showed great improvement in surface roughness with leveling and no obvious color mixing after leveling.

Research limitations/implications

Leveling is important to achieve desired layer thickness, smooth surface and good color quality in color 3-D printing. For MJ 3-D printing, only patents were revealed regarding roller design, but paper publications have not been presented. This research practically proposed to use experimental approach to understand the effects of roller operating parameters and to find the suitable ones based on surface roughness results.

Practical implications

This research established the experimental procedures and also suggested guidelines of experimentally obtaining suitable roller leveling process parameters. Developers can refer to this study results to design and adjust leveling mechanism in a new MJ 3-D printer.

Originality/value

The experimental approach can be applied to similar MJ 3-D printing systems if different materials are introduced or the platform speed is changed. The observed trends suggested several guidelines to plan limited experiments only to obtain suitable roller process parameters.

Details

Rapid Prototyping Journal, vol. 26 no. 1
Type: Research Article
ISSN: 1355-2546

Keywords

Article
Publication date: 1 April 2001

Mei‐yu Wang

This paper describes the characteristics of the document supply industry and its products, and the factors underlying supply and demand. In order to cope with possible supply and…

3644

Abstract

This paper describes the characteristics of the document supply industry and its products, and the factors underlying supply and demand. In order to cope with possible supply and demand shifts, appropriate adjustments that profit‐seeking suppliers and non‐profit‐seeking suppliers may adopt are also discussed.

Details

Library Review, vol. 50 no. 3
Type: Research Article
ISSN: 0024-2535

Keywords

Article
Publication date: 26 April 2011

Hui‐Ling Tung and Yu‐Hsuan Chang

The purpose of this paper is to extend an integrated model of the antecedents that help explain and predict team performance in relation to empowering leadership behaviors. To…

4358

Abstract

Purpose

The purpose of this paper is to extend an integrated model of the antecedents that help explain and predict team performance in relation to empowering leadership behaviors. To this end, the authors examine the intervening roles of knowledge sharing and team cohesion in the relationship between empowering leadership and performance in teams.

Design/methodology/approach

Data were obtained from 261 team members from 79 management teams in a major international fast‐food chain restaurant operating in Taiwan. Confirmatory factor analysis and multiple regressions were used for data analysis.

Findings

It was found that two indirect effects supplemented the direct effect of empowering leadership on team performance, the mechanisms of knowledge sharing and team cohesion. In other words, knowledge sharing and team cohesion, respectively, mediated the relationship between empowering leadership and performance in management teams.

Research limitations/implications

This study extended existing research to the links between team characteristics, team cohesion, and knowledge sharing. Particularly, it explored the effect of team cohesion and knowledge sharing on team performance. The authors further investigated the mediating effect of team cohesion and knowledge sharing on the relationship between empowering leadership and team performance.

Originality/value

This is one of the first studies in empowering leadership applying different intervention and its process of a management team to the study of knowledge sharing as a team process and team cohesion as an emergent state.

Details

Journal of Chinese Human Resources Management, vol. 2 no. 1
Type: Research Article
ISSN: 2040-8005

Keywords

Content available
Article
Publication date: 3 May 2013

108

Abstract

Details

Journal of Chinese Human Resources Management, vol. 4 no. 1
Type: Research Article
ISSN: 2040-8005

Keywords

Article
Publication date: 20 November 2017

Saleh Fahed Alkhatib

The purpose of this paper is to develop a new integrated approach for the strategic logistics outsourcing process through identifying the logistics independent success factors…

1859

Abstract

Purpose

The purpose of this paper is to develop a new integrated approach for the strategic logistics outsourcing process through identifying the logistics independent success factors (ISFs) and linking them with the firm’s strategic objectives and logistics requirements. Then, the new integrated approach will be used to compare the outsourcing processes for the upstream and downstream supply chain members. Studies of logistics outsourcing reveal the strategic importance of this process and the increasing need for new strategic approach.

Design/methodology/approach

The design is based on mixed methodology and integrated approach. The fuzzy decision-making trial and evaluation laboratory technique has contributed to the construction of interdependent relationships, development of impact-relationship maps (IRMs) and identifying ISFs. The fuzzy quality function deployment technique was used to link the strategic objectives, logistics requirements and the ISFs to evaluate and select logistics service providers (LSPs) strategically. Finally, two case studies (upstream and downstream supply chains) are used to demonstrate the new approach effectiveness and to highlight the differences/similarities between the two streams.

Findings

In addition to the new strategic logistics outsourcing approach, this study analysed the impact relationships of the LSPs’ framework factors and constructed their maps. In all, 21 ISFs have been identified: 8 logistics key performance indicators, 7 logistics services and activities and 6 logistics resources and capabilities. The two streams’ comparison relived several differences in terms of strategic objectives, logistics requirements and ISFs.

Research limitations/implications

The new approach for strategic logistics outsourcing can help firms to perform a better multi-stakeholder multi-criteria strategic outsourcing process. In addition, the upstream–downstream supply chain comparison increases our understanding how different supply chain members perform different outsourcing processes.

Originality/value

This is one of the pioneering studies that compares the supply chain upstream–downstream perspectives to highlight logistics outsourcing similarities and differences. To the best of author’s knowledge, this is one of the first logistics outsourcing studies that identifies ISFs for strategic logistics outsourcing, provides the first IRMs for the strategic logistics factors and develops a new integrated approach for strategic logistics outsourcing

Details

Journal of Global Operations and Strategic Sourcing, vol. 10 no. 3
Type: Research Article
ISSN: 2398-5364

Keywords

Article
Publication date: 1 February 2021

Hsuan-Hsuan Ku and Yi-Ting Chang

Individuals concerned about safety comprise a significant share of the consumer market today. This paper aims to provide the results of a study on when a front-of-package (FOP…

Abstract

Purpose

Individuals concerned about safety comprise a significant share of the consumer market today. This paper aims to provide the results of a study on when a front-of-package (FOP) claim about “no added negatives” can serve as a quality cue.

Design/methodology/approach

Four between-subjects experiments examine consumers’ quality perceptions in responses to the absence-focused claims and also identifies brand parity (Studies 1a and 1b) and the associated launch of inconsistent alternatives as moderators (Study 2) and investigate the extent to which the quality signaling value of absence-focused claims varies as a function of message regulatory focus (Study 3).

Findings

Research shows that a unique absence-focused claim indicates product quality (Studies 1a and 1b). However, there could be a cost in terms of reduced perceived quality when adding an inconsistent alternative to a brand (Study 2). Furthermore, consumers associate greater product quality with absence-focused FOP claims if an appeal is framed as prevention-focused rather than promotion-focused benefits (Study 3).

Originality/value

This study advances knowledge on the effects of front-of-package claims on consumer behavior and benefits marketers in determining effective front-of-package messages for product promotion.

Details

Journal of Product & Brand Management, vol. 30 no. 8
Type: Research Article
ISSN: 1061-0421

Keywords

Article
Publication date: 29 January 2018

Hsuan-Hsuan Ku, Po-Hsiang Yang and Chia-Lun Chang

Marketers may proactively give customers personalized notices regarding their progress toward certain rewards as a means to stimulate ongoing behaviors. This paper aims to…

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Abstract

Purpose

Marketers may proactively give customers personalized notices regarding their progress toward certain rewards as a means to stimulate ongoing behaviors. This paper aims to investigate the effect on customer repatronage intention by framed messages concerning either goal-distance or consequences of an action and it also seeks to identify important variables moderating those responses.

Design/methodology/approach

Five between-subjects experiments examined how participants’ repatronage intentions, in response to the framing of goal-distance (Study 1a) and consequences of an action (Study 2a), varied as a function of their level of progress toward goal completion and also tested if the framing effects might be attenuated when relationship benefit was high rather than low (Studies 1b and 2b). They further adopted perceived reciprocity as an underlying mechanism for examining the interplay between these two kinds of framing in stimulating ongoing behavior (Study 3).

Findings

Although messages which emphasized what individuals need to spend more to attain a reward (versus how short they are from earning a reward) or loss following inaction (versus gain following action) were likely to erode intention, such effects were confined to individuals with a moderate level of progress. This intention-eroding effect was further attenuated by attractive reward. The persuasive advantages of short-from-the-end framing of goal-distance over more-to-the-end counterparts were found to be diminished when paired with a loss-framed message concerning consequences of an action. Furthermore, the observed effects on intention were mediated by perceived reciprocity.

Originality/value

The studies add to the current understanding of how the way in which information is presented might enhance loyalty or fail to do so.

Details

European Journal of Marketing, vol. 52 no. 3/4
Type: Research Article
ISSN: 0309-0566

Keywords

1 – 10 of 118