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Article
Publication date: 13 February 2009

Feng‐Cheng Lin, Chien‐Yin Lai and Jen‐Shin Hong

The purpose of this paper is to examine an auto‐assembled multimedia presentation from digital libraries, in which the retrieved media objects are dynamically composed to form a…

546

Abstract

Purpose

The purpose of this paper is to examine an auto‐assembled multimedia presentation from digital libraries, in which the retrieved media objects are dynamically composed to form a continuously played “TV‐like” presentation. This study seeks to propose techniques for ordering the media objects in such a presentation so as to reduce its total presentation lag in a high‐delay network environment.

Design/methodology/approach

Scheduling techniques adapted from conventional operational research for solving the proposed problem were applied. A number of computationally efficient heuristic algorithms that can obtain near‐optimal sequences are proposed. Numerical simulations and real‐life experiments for cases with different buffer constraints and bandwidth fluctuations were conducted to evaluate the proposed algorithms.

Findings

The result indicates that the proposed algorithms always significantly reduce the presentation lag of a given presentation, compared with a random sequence. Overall, for all the test cases, the average gaps between the idle rates of the heuristic sequences and random sequences range from 15 to 25 per cent. In particular, the RRB_3_2007 algorithm outperforms others in most of the cases involved in the experiment.

Originality/value

The study develops a sequence optimization technique for ordering the media objects and a framework for a prefetch‐enabled presentation system. The effectiveness and ease of implementation of the heuristic algorithms and the system framework make it feasible for practical digital library and meta‐search engine applications.

Details

The Electronic Library, vol. 27 no. 1
Type: Research Article
ISSN: 0264-0473

Keywords

Available. Open Access. Open Access
Article
Publication date: 6 January 2025

Colin Donaldson, Sascha Kraus, Andreas Kallmuenzer and Cheng-Feng Cheng

This study aims to explore which relational factors are crucial for accelerator-based start-ups to achieve high financial performance and whether innovation levels influence this…

386

Abstract

Purpose

This study aims to explore which relational factors are crucial for accelerator-based start-ups to achieve high financial performance and whether innovation levels influence this relationship. Utilizing fsQCA and drawing from the resource-based view (RBV), we analyze 128 start-ups in a Spanish accelerator, split by innovativeness, to understand the impact of relational and human capital factors on performance.

Design/methodology/approach

The study uses fuzzy-set qualitative comparative analysis (fsQCA) to investigate conditions leading to high financial performance among 128 start-ups in a Spanish accelerator, divided by innovativeness. Four key factors are analyzed: social capital, social competence, resource mobilization and entrepreneurial ecosystem support. fsQCA examines complex relationships between these factors and financial performance.

Findings

Relational and human capital factors significantly impact start-up financial performance, varying with innovativeness. Highly innovative start-ups benefit from social competence and networked support, while less innovative but profitable start-ups rely on resource mobilization skills. The study highlights the contingent value of these factors, showing that unique configurations drive financial success.

Research limitations/implications

The paper enhances the RBV in entrepreneurial contexts by highlighting the critical role of relational resources and their configurations. It suggests social competence and networked support are crucial for highly innovative start-ups, while resource mobilization is key for less innovative ones. These findings encourage nuanced theorizing of start-up success strategies, considering varying innovativeness levels and their impact on performance.

Originality/value

This study enhances understanding of the relationship between relational factors and financial performance in accelerator-based start-ups, considering innovation levels. It provides insights into how different configurations of social capital, competence, resource mobilization and ecosystem support lead to success. It underscores the importance of considering the contingent value of relational factors for start-up growth.

Details

International Journal of Entrepreneurial Behavior & Research, vol. 31 no. 11
Type: Research Article
ISSN: 1355-2554

Keywords

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Article
Publication date: 7 November 2016

Feng-Cheng Tung

The purpose of this paper is to investigate transformational, ambidextrous, and transactional leadership and their relationship to employee creativity and the extent to which…

5751

Abstract

Purpose

The purpose of this paper is to investigate transformational, ambidextrous, and transactional leadership and their relationship to employee creativity and the extent to which psychological empowerment and promotion focus are consistent with previous studies that identify their significant impact on employee creativity. In addition, employee psychological empowerment and promotion focus are used as mediators in the research model to ascertain whether or not there is a significant mediating effect between transformational leadership, ambidextrous leadership, transactional leadership and employee creativity.

Design/methodology/approach

In the study, 500 questionnaires were mailed to 50 electronics companies in China; 427 valid questionnaires were eventually collected. A structural equation model was then used for data analysis to study the causalities between all the parameters.

Findings

The research findings indicate that transformational and ambidextrous leadership styles have a significant effect on employee creativity. In addition, the study found that employee psychological empowerment and promotion focus has a significant mediating effect for transformational leadership, ambidextrous leadership, transactional leadership and employee creativity.

Originality/value

Executives who adopt a transformational or ambidextrous leadership style tend to have employees with greater psychological empowerment, while transformational or ambidextrous leaders tend to have employees with a stronger promotion focus. Further, the study discovered that when executives adopt a transformational or ambidextrous leadership style, they can use their employees’ psychological empowerment and promotion focus to improve employee creativity.

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Article
Publication date: 26 January 2021

Chih-Hsuan Huang, Chun-Ting Lai, Cheng-Feng Wu, Yii-Ching Lee, Chia-Hui Yu, Hsiu-Wen Hsueh and Hsin-Hung Wu

Gender difference exists in the perception of the patient safety culture in healthcare organizations. A case from a medical center in Taiwan is presented to examine how different…

197

Abstract

Purpose

Gender difference exists in the perception of the patient safety culture in healthcare organizations. A case from a medical center in Taiwan is presented to examine how different genders perceive the patient safety culture in practice from 2014 to 2017.

Design/methodology/approach

A longitudinal study using the data from 2014 to 2017 is conducted quantitatively. Mann–Whitney U test and one-way analysis of variance are employed for analyses.

Findings

The results showed that female nurses had significantly higher emotional exhaustion than male nurses in 2015 and 2016 indicating male nurses had better fatigue recovery than their female counterparts. In addition, male nurses felt a higher degree of fatigue in 2016 and 2017 than those in 2015 statistically. In contrast, female nurses felt more stressful in 2016 and 2017 than those in 2014 statistically. Female nurses had higher emotional exhaustion in 2016 and 2017 than those in 2014 and 2015 statistically.

Practical implications

To sum up, female nurses were more stressful than before, and their recovery was also relatively poor particularly in 2016 and 2017. There is a need to reduce the degree of fatigue for female nurses in this medical center through employee assistance programs, mindfulness-based stress reduction programs, building up female nurses' positive currency and setting up their appreciative inquiry. In contrast to female nurses, male nurses recovered better from fatigue. This might encourage hospital management to deploy male nurses more effectively in this medical center.

Originality/value

The results enable the hospital management to know there is a gender difference in this case hospital. More attention on female nurses is required.

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Article
Publication date: 27 May 2014

Tsu-Wei Yu and Feng-Cheng Tung

The purpose of this paper is to explore the antecedents and consequences of insurer trust and salesperson trust, as well as the relationships between insurer, salesperson, and…

546

Abstract

Purpose

The purpose of this paper is to explore the antecedents and consequences of insurer trust and salesperson trust, as well as the relationships between insurer, salesperson, and customer loyalty in order to build a conceptual model which investigates the relationships of insurer trust and salesperson trust, and finds ways to build trust and customer loyalty in the non-life insurance industry in Taiwan.

Design/methodology/approach

The data for this study were collected from the customers of non-life insurers’ policyholder service centres and were analysed using in-depth interviews and questionnaires. Structural equation modelling (SEM) was to assess the proposed research model empirically.

Findings

This study finds that firm size did not have a significant effect on insurer trust. Customer trust in the insurer was negatively but not significantly related to customer trust in the salesperson. Additionally, when relatives or friends are insurance salespersons; it is easy to build trust with them.

Originality/value

This study provides non-life insurers with new avenues for promoting and marketing their insurance.

Details

Marketing Intelligence & Planning, vol. 32 no. 4
Type: Research Article
ISSN: 0263-4503

Keywords

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Article
Publication date: 14 March 2013

Tsu‐Wei Yu and Feng‐Cheng Tung

The purpose of this paper is to establish a model that identifies the causal relationship among relationship marketing types, service quality and relationship quality on customer…

1655

Abstract

Purpose

The purpose of this paper is to establish a model that identifies the causal relationship among relationship marketing types, service quality and relationship quality on customer loyalty.

Design/methodology/approach

Data for this study were collected using in‐depth interviews and surveys from the clients of policyholder service centres of life insurers in Taiwan. A structural equation modelling approach is employed to examine the relationship posited in this study.

Findings

The findings are generally consistent with the literature. This study supports all hypotheses. Finally, the article concludes with theoretical and managerial implications of the research findings.

Originality/value

This study attempts to focus on policyholder service centres in the life insurance industry, which have been increasingly emphasized in Taiwan, to examine the impacts that different relationship marketing methods have on service quality, relationship quality and customer loyalty. Based on the results of in‐depth interviews and surveys, this study also attempts to propose a set of references to aid the development and implementation of relationship marketing campaigns and to make further contributions to both the academic and empirical literature.

Details

Managing Service Quality: An International Journal, vol. 23 no. 2
Type: Research Article
ISSN: 0960-4529

Keywords

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Article
Publication date: 4 July 2016

Feng-Cheng Tung and Tsu-Wei Yu

The purpose of this paper is to develop a greater understanding of the effect of innovation leadership (participative, supportive, and instrumental) on supervisory-rated employee…

4001

Abstract

Purpose

The purpose of this paper is to develop a greater understanding of the effect of innovation leadership (participative, supportive, and instrumental) on supervisory-rated employee creativity through greater employee regulatory focus (i.e. promotion and prevention).

Design/methodology/approach

Data were collected from dyads of 103 employees and employee supervisors working in Taiwan’s high-tech industry. A structural equation modelling approach was used to examine the relationship posited in this study.

Findings

Results reveal that both participative and supportive leadership are positively associated with the creativity of supervisory-rated subordinates when those subordinates adopted a focus on promotion. The data also show that these relationships are partially mediated by employee promotion focus. At the same time, the positive relationship between instrumental leadership and employee creativity is fully mediated by employee prevention focus.

Originality/value

The results of this study show that participative and supportive leaders cultivate employee promotion focus, which then enhances employee creativity. Instrumental leaders will induce employee prevention focus, which also enhances employee creativity. These findings imply that when enhancing employee creativity, employees with a promotion focus are more suited to participative and supportive leaders, while employees who do not have a promotion focus may be more suited to leaders who provide these employees with specific instructions on the rules, regulations, and procedures to follow to accomplish given tasks and common goals.

Details

Leadership & Organization Development Journal, vol. 37 no. 5
Type: Research Article
ISSN: 0143-7739

Keywords

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Article
Publication date: 19 August 2021

Yong Li, Feifei Han, Xinzhe Zhang, Kai Peng and Li Dang

In this paper, with the goal of reducing the fuel consumption of UAV, the engine performance optimization is studied and on the basis of aircraft/engine integrated control, the…

263

Abstract

Purpose

In this paper, with the goal of reducing the fuel consumption of UAV, the engine performance optimization is studied and on the basis of aircraft/engine integrated control, the minimum fuel consumption optimization method of engine given thrust is proposed. In the case of keeping the given thrust of the engine unchanged, the main fuel flow of the engine without being connected to the afterburner is optimally controlled so as to minimize the fuel consumption.

Design/methodology/approach

In this study, the reference model real-time optimization control method is adopted. The engine reference model uses a nonlinear real-time mathematical model of a certain engine component method. The quasi-Newton method is adopted in the optimization algorithm. According to the optimization variable nozzle area, the turbine drop-pressure ratio corresponding to the optimized nozzle area is calculated, which is superimposed with the difference of the drop-pressure ratio of the conventional control plan and output to the conventional nozzle controller of the engine. The nozzle area is controlled by the conventional nozzle controller.

Findings

The engine real-time minimum fuel consumption optimization control method studied in this study can significantly reduce the engine fuel consumption rate under a given thrust. At the work point, this is a low-altitude large Mach work point, which is relatively close to the edge of the flight envelope. Before turning on the optimization controller, the fuel consumption is 0.8124 kg/s. After turning on the optimization controller, you can see that the fuel supply has decreased by about 4%. At this time, the speed of the high-pressure rotor is about 94% and the temperature after the turbine can remain stable all the time.

Practical implications

The optimal control method of minimum fuel consumption for the given thrust of UAV is proposed in this paper and the optimal control is carried out for the nozzle area of the engine. At the same time, a method is proposed to indirectly control the nozzle area by changing the turbine pressure ratio. The relevant UAV and its power plant designers and developers may consider the results of this study to reach a feasible solution to reduce the fuel consumption of UAV.

Originality/value

Fuel consumption optimization can save fuel consumption during aircraft cruising, increase the economy of commercial aircraft and improve the combat radius of military aircraft. With the increasingly wide application of UAVs in military and civilian fields, the demand for energy-saving and emission reduction will promote the UAV industry to improve the awareness of environmental protection and reduce the cost of UAV use and operation.

Details

Aircraft Engineering and Aerospace Technology, vol. 93 no. 7
Type: Research Article
ISSN: 1748-8842

Keywords

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