Search results

1 – 10 of over 2000
Article
Publication date: 2 November 2015

Zaatar Makni and Kamel Bouallaga

The starting hesitation of a switched reluctance motor (SRM) is an issue which must be considered in the early motor design. It is mostly handled as a control concern. The starting

Abstract

Purpose

The starting hesitation of a switched reluctance motor (SRM) is an issue which must be considered in the early motor design. It is mostly handled as a control concern. The starting procedure of a SRM using a single Hall-effect position sensor is analysed in this paper. This low cost position measurement solution requires a specific control strategy. That has been developed for a three-phase 6/4 SRM. The paper aims to discuss these issues.

Design/methodology/approach

The starting procedure begins with a rotor alignment step intending to bring the rotor to a known position. Afterward, only one phase is supplied on a periodic basis, to drive the rotor in the desired direction and accelerate up to a predefined speed threshold. Thus, the proposed procedure drastically simplifies the control strategy and permits a low cost sensor based control. 2D finite elements simulations are performed to analyse the starting performances in terms of response time and power efficiency. Both electrical and mechanical transients are considered in the simulation model thanks to simplifying assumption which consists in applying a time averaged voltages instead of instantaneous switching. Finally, the entire starting procedure with a one phase supply procedure is tested experimentally.

Findings

A starting procedure of a three-phase SRM is implemented. The control effectiveness is validated by complementary FE calculations and measurements.

Originality/value

The starting hesitation issue of a three-phase SRM is solved with an easy control strategy. During the acceleration phase, only one phase is self-controlled.

Details

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, vol. 34 no. 6
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 30 March 2010

Terry O'Sullivan

The purpose of this paper is to explore the use of Conversation Analysis methods in arts marketing research.

1045

Abstract

Purpose

The purpose of this paper is to explore the use of Conversation Analysis methods in arts marketing research.

Design/methodology/approach

Eight telephone interviews are conducted with members of the audience of a regional UK symphony orchestra who self‐identified as users of online message boards (“web forums”). The interviews are transcribed and interpreted using techniques from Conversation Analysis, an approach to qualitative data analysis which pays close attention to the details of language‐in‐use as a form of activity by and between speakers.

Findings

Conversation Analysis‐led interpretation suggests that motivations for participation in web forums are more complex than literal analysis of interview data might reveal. Conversation Analysis' detailed attention to how communicators manage their interaction emphasises the co‐production of data between respondent and interviewer. The manner of emotion and meaning (re)construction through such exchanges provides valuable cues for researchers in interpreting respondent motivations. Because of the personalised nature of arts experience, this highly specific, context‐oriented approach to understanding respondent meanings offers particular potential to arts marketing researchers.

Research limitations/implications

The use of produced data (interview transcripts) rather than naturally‐occurring data (spontaneous talk) in Conversation Analysis is controversial, but the paper defends this choice.

Practical implications

Insights from Conversation Analysis enrich the interpretation of interview data to enhance qualitative research in the arts.

Originality/value

The paper demonstrates the extra value scholars can leverage from qualitative data interpretation by Conversation Analysis, and thus adds to an understanding of arts consumers.

Details

International Journal of Culture, Tourism and Hospitality Research, vol. 4 no. 1
Type: Research Article
ISSN: 1750-6182

Keywords

Article
Publication date: 3 October 2016

Sushie Jayne Dobbinson

Since often missed in forensic care settings, little is known about how the autism spectrum disorder (ASD) social and communication deficit impacts on rehabilitation work…

Abstract

Purpose

Since often missed in forensic care settings, little is known about how the autism spectrum disorder (ASD) social and communication deficit impacts on rehabilitation work, particularly when accompanied by intellectual disability. The purpose of this paper is to show how Baron-Cohen’s empathizing – systemizing theory can elucidate common processes in the interaction-based risk-reduction work carried on between ASD forensic patients and their clinicians.

Design/methodology/approach

Conversation analysis (CA) is used to analyse the talk of two ASD men engaged in risk reduction work with their clinicians on a forensic intellectual disability ward in a medium secure psychiatric hospital in the UK. The clinicians include two forensic nurses and a speech and language therapist.

Findings

Clinicians adapt to their patients’ systematic processes particularly with regard to helping them understand complex social phenomena such as others’ emotional displays and their understanding of empathy.

Practical implications

Since ASD in forensic care is poorly researched, clinicians have little in the way of guidance about the interactive strengths and weaknesses of their ASD patients, despite risk reduction work being carried out by means of conversational interactions. This paper demonstrates some key aspects of ASD clinical interactions which may be used to inform treatment strategies elsewhere in the forensic establishment.

Originality/value

By using Baron-Cohen’s empathizing systemizing theory in combination with CA, this paper aims to bring understanding of ASD interaction up to date. This is of particular importance for this poorly researched patient group, who, because of the way in which they differ to standard psychiatric patients, are at risk of being detained for lengthy periods where treatment strategies are not designed to fit their social and communicative profiles.

Details

Advances in Autism, vol. 2 no. 4
Type: Research Article
ISSN: 2056-3868

Keywords

Abstract

Details

Demystifying China’s Mega Trends
Type: Book
ISBN: 978-1-78714-410-1

Article
Publication date: 7 January 2019

Marjukka Ollilainen

The purpose of this paper is to explore how women academics experience academic motherhood in the USA and Finland, how they time their pregnancy in an academic career, and the…

Abstract

Purpose

The purpose of this paper is to explore how women academics experience academic motherhood in the USA and Finland, how they time their pregnancy in an academic career, and the ways in which the different policy environments and academic opportunity structures in each country shape the management of academic work and care work during maternity leave.

Design/methodology/approach

Data collection involved a snowball, convenience sample of semi-structured, long interviews with 67 academic mothers, 33 in Finland and 34 in the USA. Recorded interviews were transcribed verbatim and analyzed for emerging themes.

Findings

In both countries, women academics made fertility decisions by carefully deliberating their access to maternity leave, age-related concerns and the perception of job security. In Finland, the insecurity of fixed-term contracts and intensification of the ideal worker norm shaped fertility decisions and leave activities despite generous work-family policies. The US mothers’ timing of pregnancy was influenced by concerns of age-related infertility more than career risks. Women in both countries felt pressure to maintain presence at work even while they were on leave.

Originality/value

The paper addresses a paucity of comparative studies about motherhood (and parenthood) in the academe, an increasingly central question for today’s academic workforce.

Details

Equality, Diversity and Inclusion: An International Journal, vol. 38 no. 4
Type: Research Article
ISSN: 2040-7149

Keywords

Article
Publication date: 22 October 2019

Youngkyun Baek, Dazhi Yang and Yibo Fan

This study aims to investigate the relationship between the personal traits and computational thinking skills of second graders within the context of robotics activities.

Abstract

Purpose

This study aims to investigate the relationship between the personal traits and computational thinking skills of second graders within the context of robotics activities.

Design/methodology/approach

Through literature review, a research model and hypotheses were tested with 122 second graders after robotic activities.

Findings

The hypothesized model showed that learning preference, intrinsic motivation and self-efficacy were the main predictors of coding achievement and computational thinking skills, while no direct relationship was found between learning preference, intrinsic or extrinsic motivation. The final path analysis revealed that intrinsic and extrinsic motivation predict self-efficacy, self-efficacy predicts coding achievement and coding achievement predicts computational thinking skills. Another important finding was the strong impact of self-efficacy on coding achievement, as well as computational thinking skills. Results are interpreted with reference to implications for potential methods of improving computational thinking skills when using robotics in the lower grades in elementary schools.

Research limitations/implications

This study not only examined these relationships but also proposed, tested and built a research model containing a wide range of personal traits based on path analysis and multiple regression analysis, which, to the best of the researchers’ knowledge, has not been investigated in the current literature.

Practical implications

As reflected in the final research model, self-efficacy played an important role in impacting second grader’s coding achievement and computational thinking skills.

Originality/value

Few studies have investigated the various relationships in the context of robotics instruction in elementary schools as in this study. Given the increasing popularity of robotics education in elementary schools, the re-examination and identification of the pivotal role of self-efficacy in predicting second graders’ learning of coding and computational thinking skills have important implications for the implementation of robotics education.

Details

Information Discovery and Delivery, vol. 47 no. 4
Type: Research Article
ISSN: 2398-6247

Keywords

Article
Publication date: 1 May 1989

Keijo Räsänen and Sirkku Kivisaari

In modern corporations, internal R&D is considered an important source of new products and, therefore, a major mechanism of new business generation. Innovation studies report…

Abstract

In modern corporations, internal R&D is considered an important source of new products and, therefore, a major mechanism of new business generation. Innovation studies report, however, that only a small fraction of all R&D projects are successful. They recognise that the quality of management is a key factor in predicting the outcome of innovation processes. In spite of this consensus, only a few empirical studies have described how managers from various organisational positions jointly produce certain innovative outcomes in certain industries and corporate contexts (Maidique 1980, Burgelman & Sayles 1986).

Details

International Journal of Sociology and Social Policy, vol. 9 no. 5/6
Type: Research Article
ISSN: 0144-333X

Article
Publication date: 1 March 1931

Captain P. Dupuy

IN the course of the receptions which were organised in Paris at the Palais d'Orsay and the Luxembourg, in honour of Costes and Bellonte, the chief of the Government associated…

Abstract

IN the course of the receptions which were organised in Paris at the Palais d'Orsay and the Luxembourg, in honour of Costes and Bellonte, the chief of the Government associated the name of M. Louis Kahn with those of M. Bréguet, the builder of the “Point d'Interrogation,” of M. Birkigt, who constructed the Hispano engine, and of General Delcambre, director of the Office national météorologique.

Details

Aircraft Engineering and Aerospace Technology, vol. 3 no. 3
Type: Research Article
ISSN: 0002-2667

Article
Publication date: 30 September 2022

Thomas Ahrens and Laurence Ferry

This study is concerned with the institutional value dimension in recent accounting research into hybrids and hybridity. Such research has been cognitively oriented and neglected…

Abstract

Purpose

This study is concerned with the institutional value dimension in recent accounting research into hybrids and hybridity. Such research has been cognitively oriented and neglected the affective and emotional qualities of the values in which institutions are grounded. This study assumes that organisational members use accounting for instrumental reasons conditioned by objective facts. This study aims to offer new impetus to this literature by taking seriously the nature of institutional value.

Design/methodology/approach

Essay combined with discussion of published work.

Findings

Cognitive misinterpretations of institutional value underplay the force of institutions. One acts upon these not as a matter of cognitive choice but because of beliefs in deeply held values. In the extreme, the value possesses the actor not vice versa. However, because institutional values are ideal and abstract, they can never be fully and incontrovertibly achieved in practice. Certain practices, such as accounting, can come to stand in for the pursuit of the institutional value. In particular contexts, practicing accounting can come to be regarded as pursing institutional values, which makes it an institutional object.

Originality/value

The explication of accounting as an institutional object can show the potential significance of accounting for institutional values, including hybrid values.

Details

Qualitative Research in Accounting & Management, vol. 19 no. 5
Type: Research Article
ISSN: 1176-6093

Keywords

Article
Publication date: 3 August 2015

Kimia Moghaddam

The purpose of this paper is to the investigate the rock music, and in particular the genre known as heavy metal, subculture in Iran and identify its relationship to social…

Abstract

Purpose

The purpose of this paper is to the investigate the rock music, and in particular the genre known as heavy metal, subculture in Iran and identify its relationship to social responsibility.

Design/methodology/approach

The research was conducted qualitatively through in-depth interview with more than 100 rock music fans who identify themselves as belonging to the particular subculture under investigation. It also investigates the history of such music within the country to explain that it is marginalized and forbidden in a way which is not generally understood in Western countries.

Findings

The findings of the paper show that the fans of the music identify themselves as a particular subculture within the society and share not just an interest in the music but also in social concerns, politics and religion.

Social implications

This paper shows that subcultures are interrelated with social responsibility and that this is dependent upon the nature of the society in which the subculture resides. This is important in understanding the dynamics of change within a country.

Originality/value

This is one of the very few papers which looks at the link between subcultures and social responsibility and, therefore, is important in showing that social responsibility can develop independently of any organization while not being bounded by the nature of the society which spawns it.

Details

Social Responsibility Journal, vol. 11 no. 3
Type: Research Article
ISSN: 1747-1117

Keywords

1 – 10 of over 2000