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1 – 10 of 129
Article
Publication date: 8 May 2018

Cezary Galinski, Grzegorz Krysztofiak, Marek Miller, Pawel Ruchala, Marek Kalski, Mateusz Lis, Adam Dziubinski, Krzysztof Bogdanski, Lukasz Stefanek and Jaroslaw Hajduk

The purpose of this paper is to present the methodology and approach adapted to conduct a wind tunnel experiment on the inverted joined-wing airplane flying model together with…

Abstract

Purpose

The purpose of this paper is to present the methodology and approach adapted to conduct a wind tunnel experiment on the inverted joined-wing airplane flying model together with the results obtained.

Design/methodology/approach

General assumptions underlying the dual-use model design are presented in this paper. The model was supposed to be used for both wind tunnel tests and flight tests that significantly drive its size and internal structure. Wind tunnel tests results compared with the outcome of computational fluid dynamics (CFD) were used to assess airplane flying qualities before the maiden flight was performed.

Findings

Extensive data about the aerodynamic characteristics of the airplane were collected. Clean configurations in symmetric and asymmetric cases and also configurations with various control surface deflections were tested.

Practical implications

The data obtained experimentally made it possible to predict the performance and stability properties of the unconventional airplane and to draw conclusions on improvements in further designs of this configuration.

Originality/value

The airplane described in this paper differs from frequently analyzed joined-wing configurations, as it boasts a front lifting surface attached at the top of the fuselage, whereas the aft one is attached at the bottom. The testing technique involving the application of a dual-use model is also innovative.

Details

Aircraft Engineering and Aerospace Technology, vol. 90 no. 4
Type: Research Article
ISSN: 1748-8842

Keywords

Content available
Book part
Publication date: 19 December 2016

Radha R. Sharma and Sir Cary Cooper

Abstract

Details

Executive Burnout
Type: Book
ISBN: 978-1-78635-285-9

Article
Publication date: 8 March 2022

Rossella Canestrino, Pierpaolo Magliocca, Marek Ćwiklicki and Barbara Pawełek

Adopting more sustainable and social-oriented perspectives is crucial for the emergence of the so-called humane entrepreneurial ecosystems (HEEs), the last ones supporting the…

Abstract

Purpose

Adopting more sustainable and social-oriented perspectives is crucial for the emergence of the so-called humane entrepreneurial ecosystems (HEEs), the last ones supporting the improvement of both economic, environmental and social wealth. Entrepreneurs act as keystone players in each entrepreneurial ecosystem, thus the emergence of Humane Entrepreneurship (HumEnt) is crucial in shaping HEEs. Given the role of culture in affecting HumEnt, the relationships between Humane Orientation (HO) – as defined in the GLOBE project – and the basic components of Humane Entrepreneurship (HumEnt) were, particularly, explored in a selected sample of countries. Both Intellectual Capital (IC) and knowledge management (KM) perspectives were adopted in pursuing the research goal.

Design/methodology/approach

The study approaches this by the mean of the Ward method with Euclidean squared distance and the k-means method. The GLOBE project, the Global Entrepreneurship Monitor (GEM), the Environmental Performance Index (EPI) and the International Social Survey Program (ISSP) were used as data sources. Correlations between HO “as is” scores and each components of HumEnt were checked for the world sample (N = 36), as well as for the groups of innovation-driven countries (N = 17) and European countries (N = 14).

Findings

Research results show a conditional confirmation of the developed hypotheses, depending on countries cultural levels of HO, with a moderating role exercised by the economic development on the relationship between culture and HumEnt.

Originality/value

Given the increasing pressure of fundamental societal challenges, such as climate change, poverty and increasing inequality within and between countries intensified by pandemic (UN report, 2021), integrating the more traditional approaches to profit seeking with the more sustainable and human-centric perspective is a priority for both scholars and society at large. Previous researches do not provide explanation about the contextual factors responsible for the emergence of more humane-oriented entrepreneurial ecosystems, especially when referring to culture. This article broadens our understanding about the reason why both HumEntr and HEEs differently arise and develop in different cultural contexts.

Details

Journal of Intellectual Capital, vol. 24 no. 1
Type: Research Article
ISSN: 1469-1930

Keywords

Article
Publication date: 8 August 2018

Viktoria Gallova, Marek Palasinski, Neil Shortland, Michael Humann and Lorraine Bowman Grieve

The purpose of this paper is to determine the potential predictors of anxiety about digital security, terrorist threats and support for high-tech counter measures.

Abstract

Purpose

The purpose of this paper is to determine the potential predictors of anxiety about digital security, terrorist threats and support for high-tech counter measures.

Design/methodology/approach

In Study 1, 195 participants indicated their anxiety about digital security systems, data protection and social networking sites. In Study 2, 107 participants indicated their anxiety about domestic terrorism, international terrorism and extremist groups. In Study 3, 261 participants indicated their support for high-tech counter-terrorism measures.

Findings

Study 1 suggests that whereas anxiety about digital security systems, data protection and social networking sites was positively predicted by right-wing authoritarianism, anxiety about social networking was also negatively predicted by time spent online. Study 2 shows that time spent online was a negative predictor of anxiety about domestic terrorism. Study 3 indicates that the strongest positive predictor of support for all the measures was right-wing authoritarianism, followed by national identity.

Research limitations/implications

The findings show the relevance of terror management theory to digital security and counter-terrorism.

Practical implications

It appears that right-wing authoritarianism and national identity may serve as mechanisms for people to subjectively counter the presented threats. This notion may inform relevant policy and practice aimed at making communities safer and potentially helps introduce counter-terror measures with less public backlash.

Social implications

When designing counter-terror measures, policy makers should consider compound national identities (e.g. Catalan or Basque people).

Originality/value

The paper makes contribution to under-explored areas of terrorism anxiety and support for counter-terror measures.

Details

Safer Communities, vol. 17 no. 3
Type: Research Article
ISSN: 1757-8043

Keywords

Article
Publication date: 5 April 2019

Rossella Canestrino, Marek Ćwiklicki, Primiano Di Nauta and Pierpaolo Magliocca

The purpose of this paper is to identify the key factors for successful creation of social value using the social business model (SBM) as an explanatory framework.

Abstract

Purpose

The purpose of this paper is to identify the key factors for successful creation of social value using the social business model (SBM) as an explanatory framework.

Design/methodology/approach

This study follows the Krippendorff and Gioia’s methodology seeking the rigor while examining the selected case study – a social cooperative named La Paranza, in the city of Naples in the south of Italy. In doing so, the SBM canvas is used to present the research’s results in a systematic way.

Findings

The existence of a strong “identity” with the local context, the “enthusiasm and the wish to change things”, the presence of a “visionary”, acting as an orchestrator and the ability to provide for responses to the local needs were identified as key factors in the successful creation of social value in the examined case.

Research limitations/implications

The main research limits stem from the single case study methodology approach, which embodies the researchers’ subjectivity. A comparative study based on the collection of multiple successful case studies is therefore suggested to develop a generalization of the key drivers underlying the process of social value creation.

Originality/value

The study’s originality results from its use of the SBM framework in presenting a successful example of social value creation. The examined empirical evidence is also original in itself, mainly because of its inner uniqueness as a new and innovative formula: this allows an in-depth investigation and the inspiration for new ideas in the ground of SBM and, in a broader sense, in the field of social innovation and social value creation.

Details

Kybernetes, vol. 48 no. 10
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 9 May 2023

Marek Hreczka, Roman Kolano, Aleksandra Kolano-Burian, Wojciech Burlikowski and Janusz Hetmańczyk

The purpose of this paper is to verify results related to losses in the core of a brushless DC prototype motor, obtained using its computer FE models, by experimental tests on…

Abstract

Purpose

The purpose of this paper is to verify results related to losses in the core of a brushless DC prototype motor, obtained using its computer FE models, by experimental tests on manufactured machines. The paper focuses on the comparison of losses in the core of a machine with a classical stator core made of an iron–silicon material (Fe–Si) and a new one made of a modern METGLAS material.

Design/methodology/approach

Computer models of the prototype motors were created using FEM. The designed machines were manufactured, and experimental tests were performed. To achieve high frequencies in rotating magnetic fields, motors with a stator to rotor pole ratio of 9/12 were built. Twin rotor approach was applied, as two identical rotors were built along the two geometrically identical stators made of different core materials.

Findings

Experimental studies have shown the superiority of the METGLAS material over the classical Fe–Si material. Material parameters were measured directly on the prepared cores as library data used in the simulation may be incorrect due to technological processes during core production, which was also verified. Problems related to twin rotor approach have been identified. Solution to the problem has been suggested. Necessity of 3D FEM modelling was identified.

Originality/value

The main source of originality is that METGLAS material used in the prototype machines was developed and manufactured by the authors themselves. Original approach to core parameter evaluation based on simplified methodology has been suggested. Another original part is a simplified methodology applied to loss measurement during no-load test.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 42 no. 4
Type: Research Article
ISSN: 0332-1649

Keywords

Open Access
Article
Publication date: 28 September 2022

Tereza Jandásková, Tomas Hrdlicka, Martin Cupal, Petr Kleparnik, Milada Komosná and Marek Kervitcer

This study aims to provide a framework for assessing the technical condition of a house to determine its market value, including the identification of other price-setting factors…

Abstract

Purpose

This study aims to provide a framework for assessing the technical condition of a house to determine its market value, including the identification of other price-setting factors and their statistical significance. Time on market (TOM) in relation to the technical condition of a house is also addressed.

Design/methodology/approach

The primary database contains 631 houses, and the initial asking price and selling price are examined. All the houses are located in the Brno–venkov district in the Czech Republic. Regression analysis was used to test the influence of price-setting factors. The standard ordinary least squares estimator and the maximum likelihood estimator were used in the frame of generalized linear models.

Findings

Using envelope components of houses separately, such as the façade condition, windows, roof, condition of interior and year of construction, brings better results than using a single factor for the technical condition. TOM was found to be 67 days lower for houses intended for demolition – as compared to new houses – and 18 days lower for houses to refurbishment.

Originality/value

To the best of the authors’ knowledge, this paper is original in the substitution of specific price-setting factors for factors relating to the technical condition of houses as well as in proposing the framework for professionals in the Czech Republic.

Details

International Journal of Housing Markets and Analysis, vol. 16 no. 7
Type: Research Article
ISSN: 1753-8270

Keywords

Article
Publication date: 1 July 2018

Marek Marciniak and Deborah Drummond Smith

The purpose of this study is to investigate the value investors place on S&P index additions relative to uncertainty surrounding the firm and the market. Investors look for…

Abstract

Purpose

The purpose of this study is to investigate the value investors place on S&P index additions relative to uncertainty surrounding the firm and the market. Investors look for reassuring signals or tell-tale signs around uncertainty.

Design/methodology/approach

Variation in the market response to announcements of S&P additions to the 400, 500 and 600 indices is examined against measures of risk factors. Internal risk factors include firm size relative to the index, total firm risk and liquidity, and whether the firm is a brand new index entrant. External risk factors related to market uncertainty are measured by the Chicago Board of Exchange volatility index.

Findings

Firms with lower market capitalization relative to the index, higher total risk, lower trading volume and first-time entrants to any S&P index elicit a positive market reaction compared to firms with less pricing uncertainty. In times of increased market uncertainty, investors tend to place more value on signals from respected institutions such as S&P, and riskier firms benefit more from inclusion in the S&P index. Overall, this study finds that the market overreaction is explained by the degree of uncertainty surrounding the added firms, as well as by the degree of market uncertainty at the time of the announcement.

Originality/value

The findings of this study suggest that investors interpret the prospect of S&P index addition as an opportunity for firms to reduce uncertainty surrounding them, and thus partially hedge their exposure to market uncertainty by joining an index tracked by dozens of index funds. The value of such a hedging strategy rises for riskier firms during market turbulence.

Details

The Journal of Risk Finance, vol. 19 no. 5
Type: Research Article
ISSN: 1526-5943

Keywords

Book part
Publication date: 2 May 2015

Aaron C. Ahuvia

This paper argues for the following sensitizing proposition. At its core, much of consumer behavior that involves brand meanings is an attempt to influence, or symbolically mark…

Abstract

Purpose

This paper argues for the following sensitizing proposition. At its core, much of consumer behavior that involves brand meanings is an attempt to influence, or symbolically mark, interpersonal relationships.

Methodology/approach

This paper presents a conceptual argument based on a literature review.

Findings

First, I argue that our pervasive concern with other people is a basic genetic component of human beings, and discuss some possible evolutionary pressures that may have led to this result. Then I discuss how this pervasive concern influences consumer behavior related to brand meanings. This discussion is structured around two aspects of social relationships: interpersonal closeness and social status. Relationship closeness is discussed with regard to brand communities, gifts, special possessions and brand love, and the often hidden ways that social relationships permeate everyday consumer behavior. Social status is discussed with reference to materialism. Materialism is sometimes misunderstood as an obsession with physical object, or as occurring when people care more about products than they do about people. In contrast, I argue that materialism is better understood as a style of relating to people.

Originality/value

This paper integrates a range of disparate findings in support of a broadly applicable generalization that nothing matters more to people than other people. This generalization can function as a sensitizing proposition that managers and researchers can bear in mind as they seek to interpret and understand how brand meaning influences consumer behavior.

Open Access
Article
Publication date: 20 November 2020

Jasmin Mikl, David M. Herold, Kamila Pilch, Marek Ćwiklicki and Sebastian Kummer

Disruptive technologies in the global logistics industry are often regarded as a threat to the existing business models of incumbents’ companies. Existing research, however…

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Abstract

Purpose

Disruptive technologies in the global logistics industry are often regarded as a threat to the existing business models of incumbents’ companies. Existing research, however, focuses mainly on whether technologies have disruptive potential, thereby neglecting when such disruptive transitions occur. To understand the timing of potential disruptive technological change, this paper aims to investigate the elements of the underlying ecosystem shaping these transitions.

Design/methodology/approach

Building on the established ecosystem framework from Adner and Kapoor (2016a), this paper constructs four categories of technology substitution to assess how quickly disruptive change may occur in the global logistics industry and defines key technology substitution determinants in logistics to emphasize the role of ecosystems for further consideration into disruptive innovation theory.

Findings

Based on the key determinants, this paper proposes first definitions of distinctive ecosystems elements linked to the three types of innovations, namely, sustaining innovations, low-end disruptions and new-market disruptions, thereby integrating ecosystems into Christensen’s (1997) disruptive innovation theory.

Originality/value

By developing a framework that conceptualizes the pace of technology substitution, this paper contributes to a more nuanced understanding of how logistics managers and academics can better predict disruptive transitions and develop strategies to allocate resources.

Details

Review of International Business and Strategy, vol. 31 no. 1
Type: Research Article
ISSN: 2059-6014

Keywords

1 – 10 of 129