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Article
Publication date: 31 December 2020

Tomasz Rymarczyk, Konrad Kania, Michał Gołąbek, Jan Sikora, Michał Maj and Przemysław Adamkiewicz

The purpose of this study is to develop a reconstruction and measurement system for data analysis using ultrasonic transmission tomography. The problem of reconstruction from the…

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Abstract

Purpose

The purpose of this study is to develop a reconstruction and measurement system for data analysis using ultrasonic transmission tomography. The problem of reconstruction from the projection is encountered in practical implementation, which consists in reconstructing an image that is an estimation of an unknown object from a finite set of projection data. Reconstructive algorithms used in transmission tomography are based on linear mathematical models, which makes it necessary to process non-linear data into estimates for a finite number of projections. The application of transformation methods requires building a mathematical model in which the projection data forming the known and unknown quantities are functions with arguments from a continuous set of real numbers, determining the function describing the unknown quantities sought in the form of inverse relation and adapting it to operate on discrete and noisy data. This was done by designing a tomographic device and proprietary algorithms capable of reconstructing two-dimensional images regardless of the size, shape, location or number of inclusions hidden in the examined object.

Design/methodology/approach

The application consists of a device and measuring sensors, as well as proprietary algorithms for image reconstruction. Ultrasonic transmission tomography makes it possible to analyse processes occurring in an object without interfering with the examined object. The proposed solution uses algorithms based on ray integration, the Fermat principle and deterministic methods. Two applications were developed, one based on C and implemented on the embedded device, while the other application was made in Matlab.

Findings

Research shows that ultrasonic transmission tomography provides an effective analysis of tested objects in closed tanks.

Research limitations/implications

In the presented technique, the use of ultrasonic absorption wave has been limited. Nevertheless, the effectiveness of such a solution has been confirmed.

Practical implications

The presented solution can be used for research and monitoring of technological processes.

Originality/value

Author’s tomographic system consisting of a measuring system and image reconstruction algorithms.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 40 no. 2
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 28 July 2022

José I. Rojas-Méndez and Mozhde Khoshnevis

This paper aims to provide an integrated model of nation branding, propose a comprehensive definition of this concept and differentiate between nation branding and other related…

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Abstract

Purpose

This paper aims to provide an integrated model of nation branding, propose a comprehensive definition of this concept and differentiate between nation branding and other related constructs.

Design/methodology/approach

To analyze nation branding academic literature, this paper used a systematic literature review approach to investigate academic studies related to nation and country branding. All relevant studies on the nation and country branding between 1996 and mid-2021 were extracted from six selected databases, including Elsevier’s Science Direct, Emerald, Sage, Wiley, Springer and Jstor, by using a Preferred Reporting Items for Systematic Reviews and Meta-Analysis process. The reviewed papers were coded and analyzed to extract themes and concepts.

Findings

The results of this paper show that nation branding is influenced by six main factors, namely, business and marketing, political, social and cultural, economic and labor, international and environmental factors; it comprises one key component, that is, nation branding; it results in five major consequences, including social, economic and financial, business, international and political consequences, and is moderated mainly by socio-demographic variables. Additional contributions of this paper are the proposal of a comprehensive definition of nation branding based on the extant literature and identifying nation branding differences with other constructs that sometimes have been previously used interchangeably with nation branding. This paper concludes with suggestions for future research in the field.

Originality/value

This paper uses the themes and concepts uncovered by the analysis to conceptualize nation branding, provides an integrated model of nation branding and distinguishes it from other related branding concepts. This paper also summarizes what nation branding is versus what it is not.

Details

Journal of Product & Brand Management, vol. 32 no. 1
Type: Research Article
ISSN: 1061-0421

Keywords

Available. Open Access. Open Access
Article
Publication date: 26 July 2021

Mary Lee Rhodes, Siobhan McQuaid and Gemma Donnelly-Cox

The purpose of this paper is to examine the applicability of the complexity-based temporary innovation system (TIS) framework to social innovation and examine the extent to which…

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Abstract

Purpose

The purpose of this paper is to examine the applicability of the complexity-based temporary innovation system (TIS) framework to social innovation and examine the extent to which “nature-based solution” (NBS) projects may be understood through a TIS lens. It is proposed that TIS provides a framework to facilitate multi-actor engagement in social innovation responses to the complexity of wicked problems? The goal is to explore if TIS provides a useful framework for understanding the evolution of social innovation projects and enabling more consciously designed and facilitated social innovation with the potential for large-scale, long-term impact.

Design/methodology/approach

The research uses a case study methodology in which 10 NBS projects in 3 European cities are examined and compared to the expected features of a TIS as proposed by anonymised for the review process (2018; 2019)

Findings

Of the 10 NBS projects, only 3 were “TIS-like”, each of which was targeting wicked problems in the city/community. As only one of the remaining 7 projects was aimed at a wicked problem, the authors concluded that the TIS framework may be best suited to those social innovations that address one or more wicked problems and that NBS projects may not display this feature.

Research limitations/implications

The authors conclude with a reflection on theoretical insights arising from applying the TIS framework to NBS in particular, and social innovation generally – and proposes the next steps in developing the TIS framework in relation to social innovation.

Originality/value

This paper applies a new complexity framework to empirical data that have not been examined previously. This analysis contributes to the development of a new framework for designing and analysing complex social innovation initiatives and challenges existing theories presenting NBSs as addressing complex “wicked” problems.

Details

Social Enterprise Journal, vol. 18 no. 2
Type: Research Article
ISSN: 1750-8614

Keywords

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Article
Publication date: 1 February 2004

Pia Jansson von Vultée and Bengt Arnetz

Female physicians have less influence over their daily work conditions and exhibit slower career advancement as compared to their male colleagues. The aim of this study is to…

999

Abstract

Female physicians have less influence over their daily work conditions and exhibit slower career advancement as compared to their male colleagues. The aim of this study is to assess the impact on individual and organizational well being from different kinds of management programs. Female physicians participating in management intervention programs were compared with a reference group of matched physicians and sickness absenteeism was significantly lower in the intervention group. No significant differences were found between the groups with regard to career advancement, individual, organizational and professional well being. Health care organizations spend a substantial amount of resources on management programs in order to improve leadership, autonomy and the work‐environment of physicians in times of increasing discontent among this key group of health care employees. Our study indicates some beneficial health effects from structured management programs but there is a need to develop and assess the efficacy of these programs further.

Details

Journal of Health Organization and Management, vol. 18 no. 1
Type: Research Article
ISSN: 1477-7266

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