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Article
Publication date: 16 April 2020

Naren Shankar R., Kevin Bennett S., Dilip Raja N. and Sathish Kumar K.

This study aims to analyze co-flowing jets (CFJs) with constant velocity ratio (VR) and varying primary nozzle lip thickness (LT) to find a critical LT in CFJs below which…

Abstract

Purpose

This study aims to analyze co-flowing jets (CFJs) with constant velocity ratio (VR) and varying primary nozzle lip thickness (LT) to find a critical LT in CFJs below which mixing enhances and beyond which mixing inhibits.

Design/methodology/approach

CFJs were characterized with a constant VR and varying LTs. A single free jet with a diameter equal to that of a primary nozzle of the CFJ was used for characteristic comparison. Numerical simulation is carried out and is validated with the experimental results.

Findings

The results show that within a critical limit, the mixing enhanced with an increase in LT. This was signified by a reduction in potential core length (PCL). Beyond this limit, mixing inhibited leading to the elongation of PCL. This limit was controlled by parameters such as LT and constant VR. A new region termed as influential wake zone is identified.

Practical implications

In this study, the VR is maintained constant and bypass ratio (BR) was varied from low value to very high values. Presently, subsonic commercial turbo fan operates under low to ultra-high BR. Hence the present study becomes vital to the current scenario.

Originality/value

To the best of the authors’ knowledge, this is the first effort to find the critical value of LT for a constant VR for compressible co-flow jets. The CFJs with constant VR and varying LT have not been studied in the past. The present study focuses on finding a critical LT below which mixing enhances and above which mixing inhibits.

Details

Aircraft Engineering and Aerospace Technology, vol. 92 no. 4
Type: Research Article
ISSN: 1748-8842

Keywords

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Article
Publication date: 6 June 2019

Naren Shankar R. and Kevin Bennett S.

Subsonic commercial aircraft operate with turbo-fan engines that operate with moderate bypass ratio (BR) co-flowing jets (CFJ). This study aims to analyse CFJ with…

Abstract

Purpose

Subsonic commercial aircraft operate with turbo-fan engines that operate with moderate bypass ratio (BR) co-flowing jets (CFJ). This study aims to analyse CFJ with constant BR 6.3 and varying primary nozzle lip thickness (LT) to find a critical LT in CFJ below which mixing enhances and beyond which mixing inhibits.

Design/methodology/approach

CFJ were characterized with a constant BR of 6.3 and varying lip thicknesses. A single free jet with a diameter equal to that of a primary nozzle of the co-flowing jet was also studied for comparison.

Findings

The results show that within a critical limit, the mixing enhanced with an increase in LT. This was signified by a reduction in potential core length (PCL). Beyond this limit, mixing inhibited leading to the elongation of PCL. This limit was controlled by parameters such as LT and magnitude of BR.

Practical implications

The BR value of CFJ in the present study was 6.3. This lies under the moderate BR value at which subsonic commercial turbofan operates. Hence, it becomes impervious to study its mixing behavior.

Originality/value

This is the first effort to find the critical value of LT for a constant BR for compressible co-flow jets. The CFJ with moderate BR and varying LT has not been studied in the past. The present study focuses on finding a critical LT below which mixing enhances and above which mixing inhibits.

Details

Aircraft Engineering and Aerospace Technology, vol. 91 no. 9
Type: Research Article
ISSN: 1748-8842

Keywords

Content available
Article
Publication date: 23 July 2019

Anna Schneider and Corinna Treisch

This paper aims to examine employees’ evaluative repertoires of tourism and hospitality jobs and segments them based on a set of job attribute preferences. Understanding…

Abstract

Purpose

This paper aims to examine employees’ evaluative repertoires of tourism and hospitality jobs and segments them based on a set of job attribute preferences. Understanding the social–cultural underpinnings of employees’ job preferences is vital if employers are to overcome the challenging task of finding and retaining talented employees in the tourism and hospitality industry.

Design/methodology/approach

A discrete-choice experiment with waiters, barkeepers, cooks and front-desk employees working in the Tyrolean tourism industry was conducted. Employees were categorized into distinct segments using a hierarchical Bayesian analysis and a cluster analysis.

Findings

Results show that flexible working hours and the ability to balance professional and private aspirations are the most important job attributes for employees. Overall, the evaluative repertoires of the “green” and “domestic (family)” conventions are most prevalent.

Research limitations/implications

This study contributes to literature on talent management by providing insights into employees’ evaluations of jobs and their evaluative repertoires embedded in the broader social–cultural context.

Practical implications

Industry representatives and employers can adapt their recruiting and retention strategies based on employees’ job preferences.

Social implications

Adapting job attributes according to employees’ evaluative repertoires helps to ensure the long-term sustainability of the industry workforce.

Originality/value

Applying the Economics of Convention (EC) perspective, combining organizational job attributes and socially embedded evaluative repertoires provides a new approach to analysing and understanding employees’ job preferences.

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Book part
Publication date: 30 November 2018

Linda Daniela, Anna Visvizi and Miltiadis D. Lytras

The digitisation of various parts of society is developing at an increasingly rapid rate, which effects the way people receive services and how familiar they are with new…

Abstract

The digitisation of various parts of society is developing at an increasingly rapid rate, which effects the way people receive services and how familiar they are with new innovations and technological challenges in educational environments. The future members of society must be prepared to participate in the creation of new innovative solutions as well as to support the process of knowledge creation. Despite the fact that rapid development of technologies requires society to immediately respond, even under these circumstances society must be able to make meaningful decisions. These processes put on the forefront of competence have the ability to predict the unpredictable, which means that the educational environment must to a certain extent be able to predict what has not yet existed and cannot be verified. However, it must at the same time involve specialists from different fields who must deal with technologies and technological solutions that have not been tested or proven consistent in the long run, measure their impact and predict what services are up to date and what technologies and skills are required. This section examines the conditions for technology-enhanced learning (TEL) in a higher education (HE) context to understand what technologies and digital solutions have traditionally been used as well as the role of educators in driving TEL. The aim of the research is to conduct a pilot study to identify the most recent trends in the use of technologies in HE, identify the future research directions, predict the future directions of development and collect and analyse the obtained data.

Details

The Future of Innovation and Technology in Education: Policies and Practices for Teaching and Learning Excellence
Type: Book
ISBN: 978-1-78756-555-5

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Article
Publication date: 10 April 2020

Eleni Michopoulou, Iride Azara and Anna Russell

This study aims to examine issues of talent management (TM) in events. Specifically, it investigates the triangular relationship that exists amongst temporary event…

Abstract

Purpose

This study aims to examine issues of talent management (TM) in events. Specifically, it investigates the triangular relationship that exists amongst temporary event workforces, event employment businesses (EEBs) and event organisers (EOs).

Design/methodology/approach

A mixed method design was used including a quantitative survey of UK temporary event workers (TEW) to examine their characteristics and motivations to work at events; a qualitative survey with (EOs) to understand the reasons for using TEW and (EEBs) and interviews with EEBs to understand their challenges in delivering best-fit between TEW and EOs.

Findings

This study sheds light on the complex relationships amongst temporary event workforces, EOs and event employment businesses. Findings show TEW who display high levels of affective commitment towards their employment organisation and possess the characteristics of extraversion and contentiousness, are highly motivated to work at events. EOs suggest their operational restrictions (such as limited resources, time and expertise) are fuelling the need to use EEBs to source staff with the right skills and attitudes. In turn, these recruiters demonstrate they play an active role in reconciling the often-conflicting needs of EOs and TEW.

Originality/value

This study extends knowledge and understanding on TM in events by providing insights into the characteristics of TEW as a growing labour market segment in the event sector. Significantly, the study contributes to a better understanding of the critical role that EEBs play in the construction, development and management of talent in events.

Details

International Journal of Contemporary Hospitality Management, vol. 32 no. 3
Type: Research Article
ISSN: 0959-6119

Keywords

Abstract

Details

Mad Muse: The Mental Illness Memoir in a Writer's Life and Work
Type: Book
ISBN: 978-1-78973-810-0

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Book part
Publication date: 19 December 2017

Karin Klenke

Abstract

Details

Women in Leadership 2nd Edition
Type: Book
ISBN: 978-1-78743-064-8

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Article
Publication date: 2 July 2018

Anna Watson, Bethan Alexander and Leyla Salavati

Utilizing the stimulus-organism-response model, the purpose of this paper is to examine the effects of augmented reality (AR) (specifically augmentation) on consumers…

Abstract

Purpose

Utilizing the stimulus-organism-response model, the purpose of this paper is to examine the effects of augmented reality (AR) (specifically augmentation) on consumers’ affective and behavioral response and to assess whether consumers’ hedonic motivation for shopping moderates this relationship.

Design/methodology/approach

An experiment using the manipulation of AR and no AR was conducted with 162 participants aged between 18 and 35. Participants were recruited through snowball sampling and randomly assigned to the control or stimulus group. The hypothesized associations were analyzed using linear regression with bootstrapping.

Findings

The paper demonstrates the benefit of using an experiential AR retail application (app) to positively impact purchase intention. The results show that this effect is mediated by positive affective response. Furthermore, hedonic shopping motivation moderates the relationship between augmentation and the positive affective response.

Research limitations/implications

Because of the chosen research approach, the results may lack generalizability to other forms of augmentation. Therefore, researchers are encouraged to test the proposed model using different types of AR stimuli. Furthermore, replication of the study with other populations would increase the generalizability of the findings.

Practical implications

Results of this study provide a valuable reference for retailers of the benefits of using AR when attempting to optimize experiential value in online environments.

Originality/value

The study contributes to experiential retail and consumer purchase behavior research by deepening the conceptualization of the impact of experiential technologies, more specifically AR apps, by considering the role of hedonic shopping motivations.

Details

International Journal of Retail & Distribution Management, vol. 48 no. 5
Type: Research Article
ISSN: 0959-0552

Keywords

Abstract

Details

Protest Technologies and Media Revolutions
Type: Book
ISBN: 978-1-83982-647-4

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Article
Publication date: 10 April 2017

Namhoon Kim, Eunha Chun and Eunju Ko

The purpose of this paper is to analyze how national stereotype, country of origin (COO), and fashion brand’s images influence consumers’ brand evaluations and purchase…

Abstract

Purpose

The purpose of this paper is to analyze how national stereotype, country of origin (COO), and fashion brand’s images influence consumers’ brand evaluations and purchase intentions regarding fashion collections. Korea (Seoul) and overseas (New York and Paris) collections are compared and analyzed.

Design/methodology/approach

The authors conduct a structural equation modeling and multi-group analysis using data collected from Seoul, New York, and Paris.

Findings

Consumers make higher brand evaluations and ultimately have stronger purchase intentions toward fashion collections from countries that have stronger COO and fashion brand images. In the context of fashion collections, COO image is greatly influenced by a nation’s political economic and cultural artistic images. In addition, comparing the domestic Seoul fashion collection with New York and Paris collections reveals that a national stereotype images, COO images of fashion collection, and fashion brand’s images cause different brand evaluation and purchase intention.

Originality/value

The overarching value of the study is that it expands COO research, which has been limited to actual products. Also, the results provide a basic foundation for establishing marketing strategy based on COO image as a way to enhance the development and image of fashion collection.

Details

International Marketing Review, vol. 34 no. 2
Type: Research Article
ISSN: 0265-1335

Keywords

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