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Article
Publication date: 5 February 2024

Prabir Barman, Srinivasa Rao Pentyala and B.V. Rathish Kumar

A porous cavity flow field generates entropy owing to energy and momentum exchange within the fluid and at solid barriers. The heat transport and viscosity effects on fluid and…

Abstract

Purpose

A porous cavity flow field generates entropy owing to energy and momentum exchange within the fluid and at solid barriers. The heat transport and viscosity effects on fluid and solid walls irreversibly generate entropy. This numerical study aims to investigate convective heat transfer together with entropy generation in a partially heated wavy porous cavity filled with a hybrid nanofluid.

Design/methodology/approach

The governing equations are nondimensionalized and the domain is transformed into a unit square. A second-order finite difference method is used to have numerical solutions to nondimensional unknowns such as stream function and temperature. This numerical computation is conducted to explore a wide range of regulating parameters, e.g. hybrid nano-particle volume fraction (σ = 0.1%, 0.33%, 0.75%, 1%, 2%), Rayleigh–Darcy number (Ra = 10, 102, 103), dimensionless length of the heat source (ϵ = 0.25, 0.50,1.0) and amplitude of the wave (a = 0.05, 0.10, 0.15) for a number of undulations (N = 1, 3) per unit length.

Findings

A thorough analysis is conducted to analyze the effect of multiple factors such as thermal convective forces, heat source, surface corrugation factors, nanofluid volume fraction and other parameters on entropy generation. The flow and temperature fields are studied through streamlines and isotherms. The average Bejan number suggested that entropy generation is entirely dominated by irreversibility due to heat transport at Ra = 10, and the irreversibility due to the viscosity effect is severe at Ra = 103, but the increment in s augments irreversibility due to the viscosity effect over the heat transport at Ra = 102.

Originality/value

To the best of the authors’ knowledge, this numerical study, for the first time, analyzes the influence of surface corrugation on the entropy generation related to the cooling of a partial heat source by the convection of a hybrid nanofluid.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 34 no. 2
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 15 February 2024

Xin-Zhou Qi, Eric Ping Hung Li, Zhuangyu Wei and Zhong Ning

This study examines the impact of university science parks’ (USPs) capabilities on revenue generation and introduces regional innovation as a moderating variable. This study aims…

Abstract

Purpose

This study examines the impact of university science parks’ (USPs) capabilities on revenue generation and introduces regional innovation as a moderating variable. This study aims to provide insights into enhancing revenue generation and fully leveraging the role of USPs in promoting revenue generation.

Design/methodology/approach

This study employs system generalized method of moments (GMM) estimation for 116 universities in China from 2008 to 2020, using hierarchical regression analysis to examine the relationships between variables.

Findings

The findings suggest that USPs play a beneficial role in fostering revenue generation. Specifically, the provision of incubation funding demonstrates a positive correlation, while USPs size exhibits an inverted U-shaped pattern, with a threshold at 3.037 and a mean value of 3.712, highlighting the prevalent issue of suboptimal personnel allocation in the majority of USPs. Moreover, the analysis underscores the critical moderating influence of regional innovation, affecting the intricate interplay between USPs size, incubation funding and revenue generation.

Research limitations/implications

The single country (China) analysis relied solely on the use of secondary data. Future studies could expand the scope to include other countries and employ primary data collection. For instance, future research can further examine how regional development and USPs strategic plan impact revenue generation.

Practical implications

The study recommends that USPs managers and policymakers recognize the importance of incubation funding and determine the optimal quantity of USPs size to effectively foster revenue generation in USPs. Policymakers can use regional innovation as a moderating variable to reinforce the relationship between USPs size and incubation funding on revenue generation.

Social implications

The study’s findings can contribute to the strategic industry growth and economic development of nations by promoting revenue generation. Leveraging the role of USPs and implementing the study’s recommendations can strengthen innovation and technology capabilities, driving strategic industry growth and economic development. This can enhance global competitiveness and promote sustainable economic growth.

Originality/value

This study introduces regional innovation as a moderating variable and provides empirical evidence of its influence on the relationship between USPs size and incubation funding on revenue generation. This adds value to research to the existing literature on USPs and revenue generation by showcasing the importance of examining the regional impact in research and innovation.

Details

International Journal of Entrepreneurial Behavior & Research, vol. 30 no. 5
Type: Research Article
ISSN: 1355-2554

Keywords

Article
Publication date: 1 February 2016

Wei Meng, Qian Li and Bo Zeng

The purpose of this paper is to derive the analytical expression of fractional order reducing generation operator (or inverse accumulating generating operation) and study its…

Abstract

Purpose

The purpose of this paper is to derive the analytical expression of fractional order reducing generation operator (or inverse accumulating generating operation) and study its properties.

Design/methodology/approach

This disaggregation method includes three main steps. First, by utilizing Gamma function expanded for integer factorial, this paper expands one order reducing generation operator into integer order reducing generation operator and fractional order reducing generation operator, and gives the analytical expression of fractional order reducing generation operator. Then, studies the commutative law and exponential law of fractional order reducing generation operator. Lastly, gives several examples of fractional order reducing generation operator and verifies the commutative law and exponential law of fractional order reducing generation operator.

Findings

The authors pull the analytical expression of fractional order reducing generation operator and verify that fractional order reducing generation operator satisfies commutative law and exponential law.

Practical implications

Expanding the reducing generation operator would help develop grey prediction model with fractional order operators and widen the application fields of grey prediction models.

Originality/value

The analytical expression of fractional order reducing generation operator, properties of commutative law and exponential law for fractional order reducing generation operator are first studied.

Details

Grey Systems: Theory and Application, vol. 6 no. 1
Type: Research Article
ISSN: 2043-9377

Keywords

Article
Publication date: 12 September 2008

Jeff Feiertag and Zane L. Berge

The purpose of this paper is to explore generational differences between Generation N (persons born 1980 and after) and previous generations with regard to teaching and learning.

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Abstract

Purpose

The purpose of this paper is to explore generational differences between Generation N (persons born 1980 and after) and previous generations with regard to teaching and learning.

Design/methodology/approach

This viewpoint article reviews selected literature, synthesizing those articles with opinions on how to approach Generation N for education and training.

Findings

Generation N students and employees possess certain key traits that translate into learning in school and the business world. Generation N employees are often not as independent as their predecessor generations requiring more structure, guidance and regular feedback. They prefer working collaboratively, do not respond well to the lecture, often do not communicate effectively by traditional standards, require information individually tailored to them, and require technology that is available to use. These characteristics of Gen Ns indicate that instructional designers in schools or the workplace should make appropriate adjustments when facilitating the new generation's learning.

Originality/value

With a rather widespread concern by educators and managers that today's graduates do not possess the critical thinking and other skills needed for the business world, this article lends a perspective on how to approach Generation N learners.

Details

Education + Training, vol. 50 no. 6
Type: Research Article
ISSN: 0040-0912

Keywords

Article
Publication date: 30 September 2014

Kathryn Eileen Holden and Deana M. Raffo

– The purpose of this study is to examine the potential relationship between generational membership and perspectives on female leadership.

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Abstract

Purpose

The purpose of this study is to examine the potential relationship between generational membership and perspectives on female leadership.

Design/methodology/approach

Participants from Generation X (birth years from 1961 to 1980) and Generation Y (birth years from 1981 to 2000) rated 10 descriptor words, which came from Kouzes and Posner’s ten most admired leadership characteristics. Participants were put into three gender conditions: rating a male leader, female leader or gender-neutral leader.

Findings

Differences did not emerge for the gender conditions, probably due to the methodology implemented. However, findings indicated that Generation X members admired competency and honesty more than Generation Y members, while Generation Y members admired ambitiousness and determination more than Generation X members.

Social implications

By examining the perceptions of different generations, we can begin to track potential changes in this country’s perspective on female leadership.

Originality/value

This study addresses how generation may be specifically linked to attitudes toward leadership; however, few empirical research projects have been done on the subject. Because this area of research has not been explored thoroughly, the present study has the potential to yield new and illuminating results. The present study may be one of the first steps in determining if our views on female leadership are changing.

Details

Gender in Management: An International Journal, vol. 29 no. 7
Type: Research Article
ISSN: 1754-2413

Keywords

Article
Publication date: 1 March 2003

Laura Portolese Dias

Understanding generational differences is basic to marketing fashion items to different generations. A company that can understand these differences will be able to create better…

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Abstract

Understanding generational differences is basic to marketing fashion items to different generations. A company that can understand these differences will be able to create better products that speak to generations and learn how to better advertise and market to these generations. This paper represents findings of 453 surveys from members of Generation X and Generation Y, mall observation and industry interviews. It examines the motivations of each generation for purchasing fashion related items and concludes by explaining reasoning for these differences and gives suggestions to better reach these markets. Results indicate that marketers must learn the overall perception that each generation has of itself, and market based upon these views. In addition, results indicate that despite the different needs and wants a generation may have while they are young, every generation will eventually need and want the same kinds of items.

Details

Journal of Fashion Marketing and Management: An International Journal, vol. 7 no. 1
Type: Research Article
ISSN: 1361-2026

Keywords

Article
Publication date: 9 January 2024

Sumant Kumar, B.V. Rathish Kumar, S.V.S.S.N.V.G. Krishna Murthy and Deepika Parmar

Thermo-magnetic convective flow analysis under the impact of thermal radiation for heat and entropy generation phenomena is an active research field for understanding the…

Abstract

Purpose

Thermo-magnetic convective flow analysis under the impact of thermal radiation for heat and entropy generation phenomena is an active research field for understanding the efficiency of thermodynamic systems in various engineering sectors. This study aims to examine the characteristics of convective heat transport and entropy generation within an inverted T-shaped porous enclosure saturated with a hybrid nanofluid under the influence of thermal radiation and magnetic field.

Design/methodology/approach

The mathematical model incorporates the Darcy-Forchheimer-Brinkmann model and considers thermal radiation in the energy balance equation. The complete mathematical model has been numerically simulated through the penalty finite element approach at varying values of flow parameters, such as Rayleigh number (Ra), Hartmann number (Ha), Darcy number (Da), radiation parameter (Rd) and porosity value (e). Furthermore, the graphical results for energy variation have been monitored through the energy-flux vector, whereas the entropy generation along with its individual components, namely, entropy generation due to heat transfer, fluid friction and magnetic field, are also presented. Furthermore, the results of the Bejan number for each component are also discussed in detail. Additionally, the concept of ecological coefficient of performance (ECOP) has also been included to analyse the thermal efficiency of the model.

Findings

The graphical analysis of results indicates that higher values of Ra, Da, e and Rd enhance the convective heat transport and entropy generation phenomena more rapidly. However, increasing Ha values have a detrimental effect due to the increasing impact of magnetic forces. Furthermore, the ECOP result suggests that the rising value of Da, e and Rd at smaller Ra show a maximum thermal efficiency of the mathematical model, which further declines as the Ra increases. Conversely, the thermal efficiency of the model improves with increasing Ha value, showing an opposite trend in ECOP.

Practical implications

Such complex porous enclosures have practical applications in engineering and science, including areas like solar power collectors, heat exchangers and electronic equipment. Furthermore, the present study of entropy generation would play a vital role in optimizing system performance, improving energy efficiency and promoting sustainable engineering practices during the natural convection process.

Originality/value

To the best of the authors’ knowledge, this study is the first ever attempted detailed investigation of heat transfer and entropy generation phenomena flow parameter ranges in an inverted T-shaped porous enclosure under a uniform magnetic field and thermal radiation.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 34 no. 2
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 22 December 2023

Héctor Yair Fernández-Sánchez, Angélica Espinoza-Ortega, Laura Patricia Sánchez-Vega, Sergio Moctezuma Pérez and Fernando Cervantes-Escoto

The study aims to identify the perceived authenticity of cheeses by consumers of different sociological generations in Mexico.

Abstract

Purpose

The study aims to identify the perceived authenticity of cheeses by consumers of different sociological generations in Mexico.

Design/methodology/approach

An online questionnaire was applied to 1,204 consumers. A Free Word Association (FWA) tool was used to determine the perceived authenticity of cheeses creating categories and dimensions. The sample was segmented into sociological generations. A chi-square test and a correspondence analysis were used to identify differences in the perception between generations. The information was complemented with word clouds of the cheeses mentioned and consumer testimonials about cheese consumption.

Findings

A total of 29 categories and ten dimensions revealed consumers' perception of cheese authenticity, most important of which were hedonic, rurality and new consumption. Authenticity is a mix of the pleasure of consuming the product, the link to rural life and new consumer values. Perceived authenticity is different in each sociological generation according to the dimensions of raw material, identity, market, new consumption and distrust, since it is related to the experiences of each generation. The results made it possible to contextualise another vision of the reality of the cheeses in the search for a quality seal.

Practical implications

The information contributes to the typification and promotion of cheeses in the process of patrimonialisation, by creating differentiated marketing tools that allow their valorisation.

Originality/value

This work contributes to the knowledge of the perceived authenticity of cheeses in the sociological generations, due to their differentiation by age, sociocultural, ethical, political and consumer aspects. It enables the knowledge of the consumer's perspective on these products.

Details

British Food Journal, vol. 126 no. 3
Type: Research Article
ISSN: 0007-070X

Keywords

Article
Publication date: 5 December 2023

Jasamine Hill, Minjung Kim, Brent D. Oja, Han Soo Kim and Hyun-Woo Lee

The purpose of this study was to investigate how to generate innovative work behaviors among Millennial and Generation Z sport employees and its impact on their career…

Abstract

Purpose

The purpose of this study was to investigate how to generate innovative work behaviors among Millennial and Generation Z sport employees and its impact on their career satisfaction and psychological well-being.

Design/methodology/approach

The authors used structural equation modeling to examine the relationships among predictors of job engagement, innovative work behaviors, career satisfaction and psychological well-being. The model was tested across managerial sport employees of Division I athletics departments (N = 224).

Findings

The highlights of the study include job engagement's positive relationship with innovative work behaviors and the positive influence of innovative work behavior on career satisfaction and psychological well-being.

Originality/value

These findings signify the importance of considering job engagement and innovative work behaviors to develop a positive work experience for Millennial and Generation Z sport employees. Doing so is thought to be a critical step in cultivating an organizational competitive advantage via younger generations of sport employees.

Details

Sport, Business and Management: An International Journal, vol. 14 no. 3
Type: Research Article
ISSN: 2042-678X

Keywords

Article
Publication date: 30 November 2023

Ana Isabel Jiménez-Zarco, M Dolores Mendez-Aparicio and Alicia Izquierdo-Yusta

The purpose of this paper is to analyze the life history of the Spanish Generation X over the last five decades.

Abstract

Purpose

The purpose of this paper is to analyze the life history of the Spanish Generation X over the last five decades.

Design/methodology/approach

Considering that the generational cohort concept can be identified from the marketing side as a market segment, this paper proposes to analyze the socio-economic and cultural context that has marked the different life stages of Generation X, and how they have related to brands according to their needs, desires and aspirations.

Findings

The results show that the customer journey can be considered a circular concept. The customer’s relationship with the brand can begin in childhood and continue into adulthood, such that the emotional relationship established with the brand as a child influences purchase decisions in adulthood.

Research limitations/implications

Although limited to the analysis of Generation X and its relationship with brands, this paper shows the importance of knowing the socio-economic, legal and cultural context of a generation.

Practical implications

As a business implication, the importance of remarketing is evident as a business strategy that reinforces the emotional connection between the brand and the different generations.

Social implications

From a social point of view, this paper shows the power of brands as an element of self-expression of the needs, tastes or preferences of individuals is evident.

Originality/value

This paper offers a different and innovative vision of the customer journey, taking into account the individual’s life cycle, and the way in which at each stage of life, he/she relates to brands in a different way.

Details

Journal of Historical Research in Marketing, vol. 16 no. 1
Type: Research Article
ISSN: 1755-750X

Keywords

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