bluuebunny/crossref_metadata_2025_split huggingface dataset:
Advanced computational tools for wound core distribution transformer no‐load analysis
Authors: Kefalas Themistoklis D. , Kladas Antonios G. 
Published: February 2012

PurposeThis paper aims to present an accurate representation of laminated wound cores with a low computational cost using 2D and 3D finite element (FE) method.Design/methodology/approachThe authors developed an anisotropy model in order to model laminated wound cores. The anisotropy model was integrated to the 2D and 3D FE method. A comparison between 2D and 3D FE techniques was carried out. FE techniques were validated by experimental analysis.FindingsIn the case of no‐load operation of wound core transformers both 2D and 3D FE techniques yield the same results. Computed and experimental local flux density distribution and no‐load loss agree within 2 per cent to 6 per cent.Originality/valueThe originality of the paper consists in the development of an anisotropy model specifically formulated for laminated wound cores, and in the effective representation of electrical steels using a composite single‐valued function. By using the aforementioned techniques, the FE computational cost is minimised and the 3D FE analysis of wound cores is rendered practical.
Towards short‐circuit proof design of power transformers
Authors: Bakshi Amit , Kulkarni S.V. 
Published: February 2012

PurposeThe purpose of this paper is to give a comprehensive description of various safety factors that need to be determined while assessing the short‐circuit strength of transformers.Design/methodology/approachFactors of safety are divided into two categories: radial and axial. Some of the latest approaches in assessing the strength are elaborated.FindingsSix major sets of calculations are identified: three each for radial and axial electromagnetic forces. Corresponding factors of safety are defined and calculated for practical transformers. These factors are related to the strength and stability aspects of windings.Research limitations/implicationsThe work gives pointers for further research at appropriate places while highlighting the challenges involved in the assessment of the short‐circuit strength.Practical implicationsThe presented overview of the factors of safety can be a useful guide for the practicing transformer engineers.Originality/valueThe main contribution of the reported work is in highlighting the intricacies associated with the subject of short‐circuit strength of power transformers. It can serve as a reference document for future research works in the area since the procedures are outlined for calculating the factors of safety through six case studies.
External magnetic field density of main traction transformer for EMU
Authors: Sitar Ivan , Janic Zarko , Cucic Branimir 
Published: February 2012

PurposeThe purpose of this paper is to determine the external magnetic field density of the traction transformer for EMU and to find the model for its computation.Design/methodology/approachThe magnetic flux density in the surrounding region of the traction transformer was modeled and calculated using FEM. The transformer was modeled in a way that tank, clamps and current sources were taken into account. Most frequent operating modes for the basic 50 Hz current harmonic, and most represented higher harmonic of 1,950 Hz loading current, were analyzed.FindingsMatching calculated and measured values were obtained on the finished transformer. The developed calculation has proved to be a useful tool for the stray field calculation outside this type of transformer. Calculated values of the flux density are lower then the maximum permitted values defined by the DIN VDE 0848 standard.Originality/valueThis paper presents a study of calculation compared to measurement of magnetic field density outside an oil immersed transformer.
Macromechanical modelling of woven fabrics
Authors: Vassiliadis Savvas , Kallivretaki Argyro , Frantzeskakis Paraskevas , Provatidis Christopher 
Published: February 2012

PurposeThe purpose of this paper is to focus on the development of a thorough method for the macromechanical analysis of fabrics.Design/methodology/approachThe homogenization method was implemented for the generation of continuum equivalent model for the plain woven structure. Keystone of the method is the mesomechanical analysis of the textile unit cell for the evaluation of the apparent properties and the generation of an equivalent macromechanical model supporting the mechanical performance of the structure. The finite element method (FEM) using beam elements was applied for the mechanical analysis of the discrete model of the unit cell and the FEM using shell elements was applied for the analysis of the continuum macromechanical model.FindingsThe tensile, shear and bending test of the unit cell were simulated. The constitutive equations of the continuum model were formed considering equivalent performance with the discrete model.Originality/valueThe reliability of the equivalent model in tensile, shear (in‐plane) and bending (out‐of‐plane) deformation was achieved even for asymmetric woven structures. The low computational power demanded for the meso‐ and macro‐mechanical modelling and analysis is a beneficial feature of the proposed method.
3DTV as a social platform for communication and interaction
Authors: Shin Dong‐Hee 
Published: February 2012

PurposeThe purpose of this paper is to present a predictive model of attitudes toward 3DTV.Design/methodology/approachStructural equation modeling is used to construct a predictive model of attitudes toward 3DTV. Individuals' responses to questions about attitude and intention to use 3DTV were collected and analyzed.FindingsThe model shows significant roles for social presence and flow, both of which affect attitude as well as perceived usefulness and perceived enjoyment. This set of factors is a key to users' expectations of 3DTV. Given the significant role of social presence, the study attempts to conceptualize social presence in the 3DTV context.Research limitations/implicationsThe findings imply that social presence may be enhanced by illusions of advanced technical manipulation, but it can be more effectively enhanced by a sense of belonging or emotional connection.Practical implicationsSpecific design features and characteristics of 3DTV services can be utilized to achieve meaningful social presence.Originality/valueThe proposed model brings together extant research on 3DTV and supports eventual 3D acceptance.
The “organization” as an interdisciplinary learning zone
Authors: Saxena Arora Anshu 
Published: February 2012

PurposeThe research study seeks to explore the relationship among strategic gaming, the learning organization model and approach, and transfer of learning as key success strategies for improved individual and organizational performance and sustainable competitive advantage. This research aims to identify and elaborate on the strategic integration of interdisciplinary organizational areas leading to the development of a learning organization.Design/methodology/approachThe research uses a cross‐sectoral case study approach to learning by focusing on the newly designed Advertising‐SCM (Ad‐SCM) simulation consisting of a strategic organizational game where experiential learning in organizational practice was emphasized and, subsequently, student learning outcome assessment results were analyzed.FindingsThe Ad‐SCM simulation game project strengthened the interdisciplinary business education for the learners by preparing them to connect to the corporate world effectively through the use of strategic gaming that modeled learning organization practice and transfer of knowledge, skills, attitudes and job relevant qualities to excel in the workplace. Interdisciplinary strategic games are valuable tools for learning and knowledge management within and across organizations, and need to be further investigated.Research limitations/implicationsThe research is useful for educators to try interdisciplinary, innovative projects to reinforce learning across all organizational disciplines in an inter‐organizational setting, and improve organizational performance for a sustainable competitive advantage. The research is of great value to industry professionals as it motivates critical thinking through the use of the “learning organization” as an interdisciplinary learning zone and investigates the key issues in cross‐sectoral business management areas.Practical implicationsInterdisciplinary strategic gaming enables industry involvement to build up cross‐disciplinary management exchanges between employees and provides real‐life case scenarios for interdisciplinary research projects. This research explores the possibility of transfer of learning during the individual's academic pursuits leading to the reduction in training costs and improved return on investment for organization in the future.Originality/valueThe paper utilizes an innovative research stream highlighting the relationship among the use of strategic gaming, becoming a learning organization and transfer of learning for effective learning and knowledge management.
What tensions obstruct an alignment between project and environmental management practices?
Authors: Gluch Pernilla , Räisänen Christine 
Published: February 2012

PurposeUsing an activity theory lens, this paper aims to examine the interrelationships between project practice and environmental management. It also aims to focus on tensions that occur between human agents and material objects within a motive‐directed, historically‐situated activity system, namely that of managing environmental issues in projects.Design/methodology/approachCase studies of two large infrastructure projects were conducted 2003‐2004 and 2008. The studies comprised on‐site observations, text analyses, 20 semi‐structured interviews and one group interview. Time was spent on the construction site to become familiarized with the context and the practices of the project community. A total of 15 weekly environmental site inspections were monitored and photo‐documented.FindingsThe findings show how new and emergent environmental management practices and routines were inherently contradictory to the situated and established culture within the projects. In fact project practices seemed to amplify the contradictions between environmental management and project management rather than mitigating them. As a result project members and organization members strove toward different goals and foci. It is argued that management needs to create arenas where members from the two units can align practices and merge routines.Practical implicationsAligning the permanent structures of the organization with the temporary organizing of practices and operational activities in projects is a challenge for the construction industry. A prevalent lack of fit between the organization and its projects causes contradictions which negatively affect the way in which long‐term environmental strategies and goals are understood and implemented in the project settings.Originality/valueThe system theoretical lens adopted in this study enables a holistic interpretation of complex and dynamic activities and the linking of the micro, the individual, to the macro, the organizational structure. By indicating some inherent and emergent contradictions between project practice and corporate environmental management, this paper contributes to an emergent field of research that focuses on social practice in construction.
“Outing” the supplier: implications for manufacturers and retailers
Authors: Olson Erik L. 
Published: February 2012

PurposeThe purpose of this paper is to examine empirically the brand impact of consumer knowledge regarding a common supplier and shared product specifications between manufacturer and private label brands.Design/methodology/approachThe study uses three fast‐moving consumer goods in an experimental setting.FindingsThe study finds that knowledge about common sourcing and shared specification decreases perceptual gaps between private labels and manufacturer brands and improves attitudes towards the retailer.Research limitations/implicationsThe study uses a student sample, although all product categories and brands tested are popular with this demographic, and they are a key target market for the tested industries.Practical implicationsManufacturer brands that supply private labels need to make sure that this information does not reach consumers and/or ensure their own brand version remains superior to the private label. Retailers that use well‐known manufacturer brands as suppliers of their high‐quality private labels might wish to share this information with customers as a means of improving attitudes towards the private label and retailer brands.Originality/valueThis paper builds on earlier platform sharing research and shows the dangers and opportunities of sharing product specification across brands with differing reputations and prices.
The influence of perceived risk on purchase intent – the case of premium grocery private label brands in South Africa
Authors: Beneke Justin , Greene Anne , Lok Inge , Mallett Kate 
Published: February 2012

PurposeThe purpose of this study is to investigate the perceived risks that consumers associate with premium grocery private label brands in South Africa, and to understand which of these risks significantly affect their purchase intention.Design/methodology/approachA self‐administered survey consisting of 325 respondents was utilised. Item total reliability and confirmatory factor analysis were used to test the reliability and validity of the constructs. Furthermore, path modelling in the form of partial least squares analysis was employed to analyse the relationship between consumers' perceived risks and their purchase intention.FindingsThis study revealed that functional and time risk both have a significant negative influence on consumers' purchase intention of premium grocery private label brands (at the 5 per cent significance level), while financial, physical, psychological and social risks do not significantly influence their purchase intention.Research limitations/implicationsThis study is limited in that respondents are consumers of a specific geographic region and demographic grouping. Findings may therefore not be generalisable, particularly with respect to developed markets.Originality/valueThis is one of the first studies investigating consumers' perceived risks of premium grocery private label brands sold within emerging markets. As retailers continue to grow profits through the deployment of such brands, this study may provide direction on how best to entice consumers to trial and adopt these brands in a largely commodity‐driven environment.
Revisiting perceptual fit in co‐branding applications
Authors: Thompson Kenneth , Strutton David 
Published: February 2012

PurposeThis study seeks to explore the value of using brand alliances, or co‐branding strategies, to influence consumer perceptions of new brand extensions under circumstances where the firm (parent brand) introduces new products that will be targeted to product categories within which the parent brand has a low initial degree of perceptual fit.Design/methodology/approachData were collected through a four‐stage questionnaire administered to 308 subjects. Hypotheses were explored through a four‐level single factor between subjects experimental design.FindingsAnalyses suggest that by partnering with brands possessing higher perceived degrees of fit in the extension category (i.e. co‐brand), parent firms' brands can achieve more favorable positions for their extensions than could be realized if firms acted independently. Explained variance in perceptions of the extension increased substantially when perceptions of co‐ and parent‐brand fit were considered. Fit between the co‐brand and the new extension product apparently should be the driving factor in selecting best partnering brands for alliances. Fit between parent and partner brands may take a back seat when forming alliances.Originality/valueCurrent co‐branding research typically addresses the ability of brand alliances to improve perceptions of new products bearing the names of both co‐joined brands. “Perceptual fit” and brand attitudes are major constructs thought to influence the ability of brand alliances to achieve this goal. Specifically, in co‐branding applications, perceptual fit is usually conceptualized as the fit between co‐joined brands themselves, rather than fit between each co‐joined brand and the proposed new product for which both has been combined to launch. The paper's original argument is that when one brand (parent or host brand) seeks to co‐brand for purposes of improving its ability to penetrate an untested new product category, fit should be treated from a more traditional brand extension perspective. This argument is supported.
The role of brand image congruity in Chinese consumers' brand preference
Authors: Hu Jing , Liu Xin , Wang Sijun , Yang Zhilin 
Published: February 2012

PurposeThis study aims to examine the role of functional and symbolic image congruity in Chinese consumers' brand preferences in the auto market, and the role of brand familiarity in moderating the relationship between brand image congruity and consumers' preferences.Design/methodology/approachA one‐on‐one survey was administered to 1,440 consumers by market research specialists on two popular auto brands in China.FindingsWhile confirming existing findings concerning functional image congruity, the results revealed that symbolic image congruity had a negative impact on Chinese consumers' brand preference when a brand's perceived symbolic image is higher than consumers' ideal expectations (i.e. upward incongruity), and brand familiarity does not moderate the role of symbolic image congruity in Chinese consumers' brand preference.Originality/valueThe paper's findings could help managers to improve their brand management and enhance consumer satisfaction.
Transforming the nature and scope of new product development
Authors: Pitta Dennis , Pitta Elizabeth 
Published: February 2012

PurposeOver the last several decades, product development efforts have seen unacceptably high new product failure rates. One important factor is the presence of competitors who can interfere with marketing strategy and force changes that sap resources and reduce success. As industries try to improve their success, line extensions, i.e. developing products similar but different to successful products, have become more common. Simultaneously, industries have reacted by refining the new product development (NPD) process to make it more reliable and accurate. The refined development techniques are so helpful in refining product benefits with which firms are familiar that they reinforce the pressure to extend the line. The result is overcrowded markets where destructive competition destroys profitability. A “blue ocean” strategy promises to change the destructive cycle of market crowding. Originally the framework focused on overall market strategy. However, it has a direct application to NPD. Revising the NPD process to incorporate a blue ocean viewpoint before the idea generation stage may reduce the failure rate and create breakthrough products that are not easily emulated. This paper aims to address this issue.Design/methodology/approachThe paper reviews the NPD literature as well as work implementing a blue ocean strategy. It delineates the tools developed for applying blue ocean concepts to strategy. The paper then applies a blue ocean approach to the NPD process with the objective of developing new products and services that are unhindered by competitive offerings. Implementing a blue ocean strategy involves four main actions and may be focused on six targets. The paper integrates the elements into a strategic opportunity product development matrix which may help practitioners. Moreover, it identifies at which stage of the new product development process blue ocean concepts should be introduced.FindingsThe paper reveals that there are no unvarnished panaceas in product development. Applying a blue ocean strategy to avoid competition early in the product life cycle promises to reduce dangerous competition to allow the product to succeed. However, the gains will probably not extend indefinitely. It requires constant improvement and application of the concepts to gain a measure of sustainability. If firms are successful early, they may be able to defend gains in some areas to retain profitability, while seeking new blue oceans.Practical implicationsBlue ocean applied to marketing strategy has seen large gains in success. Integrating efforts to find uncluttered market space holds the promise of increased success. It will also refine the NPD process.Originality/valueBlue ocean strategy has not been applied to the new product development process in the literature. The paper integrates the concepts of the strategy with the elements of product development. The result is a new approach toward success products and product introductions.
Consumers' utilization of reference prices: the moderating role of involvement
Authors: Chandrashekaran Rajesh 
Published: February 2012

PurposeThe purpose of this article is to investigate whether involved consumers utilize the same set of reference prices to evaluate an offer as compared to those who are less involved. Additionally, this study aims to investigate whether the processes employed in the two groups are different.Design/methodology/approachA total of 200 students were enrolled to participate in a realistic shopping experience over a two‐week period. In the course of the study, subjects were asked to provide information on their reference prices. They were also asked to evaluate an advertised offer for a pair of jeans. The data were analyzed using a structural equations methodology.FindingsUnder high involvement, consumers utilize perceived normal price, an external market‐based reference price, to adjust their internal standards, which in turn is used to evaluate retail price. In contrast, low‐involvement consumers do not use their internal standards. Rather, they evaluate retail prices directly against external market‐based references.Originality/valueDespite decades of research on the role of reference prices, the moderating role of involvement on reference price utilization has not been researched adequately. The findings reported here add to existing knowledge in the field and shed additional light on the process by which consumers evaluate posted prices. The findings also emphasize the need to segment the market on the basis of reference price utilization and to design appropriate communication strategies for each.