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Article
Publication date: 26 July 2013

Hung Truyen Luong and Nam Seo Goo

The purpose of this paper is to investigate the characteristics of PCGEs used in a small‐scale windmill in terms of the number of PCGEs.

Abstract

Purpose

The purpose of this paper is to investigate the characteristics of PCGEs used in a small‐scale windmill in terms of the number of PCGEs.

Design/methodology/approach

Experiments were performed in cases where one, two, or four PCGEs are attached to the frame of the windmill, with optimization of different gap distances between exciting and secondary magnets carried out to determine the optimal configuration for generating the peak voltage and harvesting the maximum wind energy for the same range of wind speeds.

Findings

The experimental results show that the prototype can harvest energy in urban regions with low wind speeds and convert the wasted wind energy into electricity for city use.

Originality/value

The experimental results show that the prototype can harvest energy in urban regions with low wind speeds and convert the wasted wind energy into electricity for city use.

Details

International Journal of Intelligent Unmanned Systems, vol. 1 no. 3
Type: Research Article
ISSN: 2049-6427

Keywords

Content available
Article
Publication date: 19 October 2010

Askin T. Isikveren

532

Abstract

Details

Aircraft Engineering and Aerospace Technology, vol. 82 no. 6
Type: Research Article
ISSN: 0002-2667

Article
Publication date: 19 October 2010

Cam Minh Tri Tien and Nam Seo Goo

Current technology uses large windmills that operate in remote regions and have complex generating mechanisms such as towers, blades gears, speed controls, magnets, and coils. In…

Abstract

Purpose

Current technology uses large windmills that operate in remote regions and have complex generating mechanisms such as towers, blades gears, speed controls, magnets, and coils. In a city, wind energy that would otherwise be wasted can be claimed and stored for later use. The purpose of this paper is to introduce a small‐scale windmill that can work in urban areas.

Design/methodology/approach

The device uses a piezo‐composite generating element (PCGE) to generate the electric power. The PCGE is composed of layers of carbon/epoxy, lead zirconate titanate (PZT) ceramic, and glass/epoxy cured at an elevated temperature. Previous work by the authors had proved that the PCGE can produce high performance energy harvesting.

Findings

In the prototype, the PCGE performed as a secondary beam element. One end of the PCGE is attached to the frame of the device. Additionally, the fan blade rotates in the direction of the wind and hits the other end of the PCGE. When the PCGE is excited, the effects of the beam's deformation enable it to generate electric power. The power generation and battery charging capabilities of the proposed device were tested, and the results show that the prototype can harvest energy in urban regions using minor wind movement.

Originality/value

The paper presents a prototype that uses a PCGE for harvesting wind energy in urban areas. The PCGE has the potential of being used as a generator for harvesting energy from sources such as machine vibration, body motion, wind, and ocean waves. The PCGE design is flexible: the ply orientation and the size of the prepreg layers can be changed. Generating elements with a specific stacking sequence can be used for scavenging energy in a wide range of applications such as network sensors, portable electronics, and microelectromechanical systems.

Details

Aircraft Engineering and Aerospace Technology, vol. 82 no. 6
Type: Research Article
ISSN: 0002-2667

Keywords

Article
Publication date: 19 October 2010

Ki Hoon Park, Bum Soo Yoon, Ngoc Trung Nguyen, Nam Seo Goo, Tae Sam Kang and Kwang Joon Yoon

The purpose of this paper is to develop lightweight actuators in order to replace conventional hydraulic/pneumatic actuators and to apply the actuation system to a small flying…

Abstract

Purpose

The purpose of this paper is to develop lightweight actuators in order to replace conventional hydraulic/pneumatic actuators and to apply the actuation system to a small flying vehicle.

Design/methodology/approach

A new type of control surface using a piezo‐composite actuator for a small flying vehicle has been designed and manufactured. The piezo‐composite actuator is composed of a piezoelectric ceramic layer, a carbon/epoxy layer and glass/epoxy layers. Through this, the miniaturization and weight reduction of the actuation systems for flying vehicle can be achieved. A simple model of the control surface has been manufactured and evaluated through experiments.

Findings

The performance test results showed that the developed actuator can produce stable angle of attack independent of the applied loading. A radio controller for the actuator was developed to control the motions wirelessly. It was found that the piezo‐composite actuator and its integrated controller system have a possibility to be used not only as a small flying vehicle but also as a control surface actuator of a small unmanned flying robot through the miniaturization of power supply and control system.

Originality/value

The paper describes the procedures of designing and manufacturing smart structure application of the piezo‐composite actuator with performance evaluation and comparison method. It is expected that piezo‐composite actuator can be used as a small flying vehicle control surface actuator through the miniaturization of power supply and control system with the use of the integrated radio controller MIPAD.

Details

Aircraft Engineering and Aerospace Technology, vol. 82 no. 6
Type: Research Article
ISSN: 0002-2667

Keywords

Article
Publication date: 3 August 2015

Cong Qi and Patrick Y.K. Chau

Effective management of IT outsourcing continues to be a challenge to organizations today. Organizations in China suffer from even bigger problems than other regions of the world…

1649

Abstract

Purpose

Effective management of IT outsourcing continues to be a challenge to organizations today. Organizations in China suffer from even bigger problems than other regions of the world. The IT outsourcing market is in its infancy and the outsourcing practice is still at its initial stage. Regarding to the outsourcing management issues, the literature has explored the role of either the relationship or contract in governing IT outsourcing success. However, few efforts have been paid to investigate the effects of both relationship and contract on IT outsourcing success from a holistic view. The paper aims to discuss these issues.

Design/methodology/approach

This study develops a conceptual model and empirically tests it through a cross-sectional survey conducted in five big cities of Mainland China.

Findings

The data analysis results identified the dimensionalities of relationship, contract and IT outsourcing success and proved the causal relationships between these three constructs.

Originality/value

This research re-emphasizes the importance of relationship in IT outsourcing success and the fundamental role of contract in developing a sound relationship. It also gives some implications on how to evaluate IT outsourcing success in China, an emerging market for IT outsourcing.

Details

Information Technology & People, vol. 28 no. 3
Type: Research Article
ISSN: 0959-3845

Keywords

Open Access
Article
Publication date: 30 June 2011

Hyung-Geun Kim

China is currently developing and promoting an industrial cluster policy at the government level. By enacting the ‘Opinion on promoting industrial cluster development’, China is…

Abstract

China is currently developing and promoting an industrial cluster policy at the government level. By enacting the ‘Opinion on promoting industrial cluster development’, China is supporting the development of industrial clusters. Building an industrial cluster is done by using a single factor but requires many additional factors like regional characteristics, competitiveness factors are also diversified. To evaluate the competitiveness of the Chinese automobile industry cluster, a competitiveness element index should be developed and a competitiveness evaluation method is needed to evaluate the importance of each element. To accomplish this objective, this research applied the analytic hierarchy process (AHP) and focused on the importance of the competitiveness elements.

This research investigated the character is tics regarding cases of clusters and also analyzed the competitiveness of the Changchun automobile cluster located in northeastern China. The purpose of this research is to help Korean enterprises who enter China in the hopes that Korea will emerge as a top automobile production country.

Details

Journal of International Logistics and Trade, vol. 9 no. 1
Type: Research Article
ISSN: 1738-2122

Keywords

Article
Publication date: 22 August 2022

Wee Kheng Tan

While regular price discount (RPD) promotions remain popular, marketers have also introduced gambled price discounts (GPDs) in recent years. There is a need to understand the…

Abstract

Purpose

While regular price discount (RPD) promotions remain popular, marketers have also introduced gambled price discounts (GPDs) in recent years. There is a need to understand the performance and limitation of the relatively novel GPD, because the importance of pricing and the surprise element inherent in GPD could cause the promotions to backfire when inappropriately applied. This study compared the performance of GPD and RPD via consumers' perception of their attractiveness through quality cues of product types (experience and search goods) and word-of-mouth (WOM) content (affective and cognitive).

Design/methodology/approach

Analysis of variance (ANOVA) was applied on a 2 (product type: experience goods [hotel rooms] vs. search goods [printers]) × 2 (word-of-mouth type: affective vs. cognitive) × 2 (price promotion type: GPD vs. RPD) between-subjects scenario experimental design (resulting in eight conditions).

Findings

Analysis of the 600 returns revealed that RPD does well for both search and experience goods, but GPD is more attractive for the marketing of experience goods. GPD works better with cognitive than with affective WOM.

Originality/value

GPD is a relatively new domain in marketing research. This study contributes to GPD literature and behavioral pricing literature. The study also adds to a better understanding of the dynamics, usefulness and limitations of GPD by considering the roles played by surprise element inherent in GPD and comparing it with RPD.

Details

Asia Pacific Journal of Marketing and Logistics, vol. 35 no. 6
Type: Research Article
ISSN: 1355-5855

Keywords

Article
Publication date: 19 June 2017

Santanu Mukherjee

This research study aims to establish the significance of collaborative governance practices in creating higher business value from an offshore IT outsourcing (ITO) relationship.

Abstract

Purpose

This research study aims to establish the significance of collaborative governance practices in creating higher business value from an offshore IT outsourcing (ITO) relationship.

Design/methodology/approach

At the outset, a Delphi technique identifies the most significant ITO success criteria from a prescribed list, which is the outcome of a review and analysis of existing research articles. Subsequently, an empirical survey captures the perceptions of provider-side middle level professionals to prioritize these significant success criteria, which are the outcome of the Delphi study. Statistical analysis of the prioritized success criteria delivers a set of success factors, which forms the basic building blocks to formulate a set of offshore governance strategies. A real-life case evidence shows the practicability of implementing the proposed strategies underlining the similar practices taken up in the past.

Findings

A set of strategies and best practices for establishing collaborative governance mechanisms within a strategic offshore ITO.

Research limitations/implications

This research study captures the perspectives of Indian service providers only.

Originality/value

This comprehensive study helps the contractual parties harness and augment the positive impacts of success factors in implementing superior contractual, relational and performance governance strategies within a strategic ITO initiative. A collaborative program management mechanism ensures the fruitful implementation of proposed strategies with the active support of top management of contractual parties. Consequently, the proposed strategies help offshore providers assess and augment their service capabilities for higher business efficiency and value creation.

Details

Journal of Global Operations and Strategic Sourcing, vol. 10 no. 2
Type: Research Article
ISSN: 2398-5364

Keywords

Article
Publication date: 17 December 2021

Alaeddin Ahmad, Manar Mousa AlMallah and Majd AbedRabbo

This research aims to investigate the influence of electronic word-of-mouth (eWOM) on the diffusion rate of innovation in the context of entrepreneurial firms in emerging markets…

Abstract

Purpose

This research aims to investigate the influence of electronic word-of-mouth (eWOM) on the diffusion rate of innovation in the context of entrepreneurial firms in emerging markets. It examines a comprehensive model for the effect of eWOM dimensions (including Content, Intensity, Positive Valence and Negative Valence) on the diffusion of innovations. Thus, it provides new insights on how entrepreneurial firms can use eWOM as a communication tool to facilitate the diffusion rate of innovations in emerging markets.

Design/methodology/approach

A quantitative approach was adopted, consisting of 215 responses from Jordan. Data were analysed using Linear regression analysis tools.

Findings

A significant relationship exists between eWOM dimensions (Content, Intensity, Positive Valence and Negative Valence) and the Diffusion Rate of Innovations. In emerging markets, eWOM content highlights critical information regarding consumers’ sentiments towards new products (including features, price, design), which consumers use in judging innovations. Especially when there is a high volume of eWOM about a new product, consumers are likely to gain reassurances regarding their purchase decisions. Specifically, the valence of eWOM (including reviews, complaints and suggestions) generate adoption/risk-aversion attitudes towards new products. Consequently, entrepreneurial firms must carefully analyse eWOM regarding their products and integrate them into their marketing strategy. 10;

Originality/value

This research extends the eWOM literature by developing a comprehensive model for the effect of eWOM dimensions on the diffusion of innovations. Additionally, it sheds new light on the effect of eWOM valence on consumers’ attitudes towards innovations. Finally, it provides significant theoretical and managerial implications and future research direction to deepen our understanding of the effect of eWOM on entrepreneurial firms.

Details

Journal of Research in Marketing and Entrepreneurship, vol. 24 no. 1
Type: Research Article
ISSN: 1471-5201

Keywords

Article
Publication date: 6 June 2016

Chebiyyam Murthy, Sidhartha S. Padhi, Narain Gupta and Kanwal Kapil

The purpose of this paper is to conduct empirical investigation of value co-creation phenomena in IT services outsourcing. This survey based research enabled to identify…

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Abstract

Purpose

The purpose of this paper is to conduct empirical investigation of value co-creation phenomena in IT services outsourcing. This survey based research enabled to identify antecedents of value co-creation and their impact on value outcomes.

Design/methodology/approach

This empirical study identifies 25 drivers of value co-creation in IT outsourcing services. These drivers were identified from reported literature and by studying IT project reports. The data were collected from client and supplier organizations followed by verification of the drivers (using PCA and CFA methodologies) that contribute significantly to value co-creation in the IT services outsourcing domain. Furthermore, using SEM and linear regression, the authors have verified the strength of their relationships with value co-creation.

Findings

This research is subjected to exploratory factor analysis, which resulted in six antecedents of value co-creation in IT services outsourcing. These antecedents include alliance relationship, strategic intent, service actualization, intrapreneurship, collective capabilities, and resource management. The alliance relationship, strategic intent, service actualization, and intrapreneurship are found to be significant for value co-creation. While collective capabilities as a standalone was not significant, the relationship of collective capabilities to value co-creation has achieved significance under the influence of alliance relationship, strategic intent, and other antecedents – when tested and hypothesized through the SEM path model.

Research limitations/implications

The research has the following limitations. The antecedents identified are contextual. The potential illustrative, but not exhaustive reasons, for the change of the context may be due to contract duration, age of the project, relationship maturity, expected value outcome from both the parties, etc. The drivers identified in this research are applicable only to IT services (IT and ITES outsourcing). They cannot be generalized to other B2B outsourcing relationship. The authors propose the conducting of separate research to identify the priorities of these antecedents for different types of outsourcing as well different types of value outcomes.

Practical implications

This study has added to the knowledge on value co-creation in IT services outsourcing relationships through empirical modeling. From the perspective practitioners of IT industry, this work brings rich information of what are the drivers to value co-creation and their significance on value outcomes in IT services outsourcing. It can provide guidelines to both clients and service providers of similar industry to assess their current practices for value co-creation and re-prioritize their activities and budgets based on the significance of value based benefits. Moreover, practitioners in the IT services industry can use these value drivers and understand the antecedents for value co-creation. As this work is from a dual perspective, both clients and suppliers can assess the applicability of these drivers and antecedents and adopt them to realize mutual value.

Originality/value

In the past, researchers have focussed on value after it was created and shared among the respective relationship partners, and very few emphasized the need for proactive identification of the antecedents of value co-creation. Researchers have emphasized on the need for an empirical approach, because most of the published studies are theoretical and conceptual in nature. Hence, the significant contribution of this empirical study is to validate the value co-creation drivers identified from literature and qualitative study (case studies) with IT industry practitioners (no. 256) across the globe and the relevance of antecedents to B2B IT services outsourcing body of knowledge.

Details

Business Process Management Journal, vol. 22 no. 3
Type: Research Article
ISSN: 1463-7154

Keywords

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