Search results

1 – 10 of 17
Article
Publication date: 20 October 2014

A. B. Spierings, M. Schoepf, R. Kiesel and K. Wegener

The purpose of this study is the development of a global SLM-manufacturing optimization strategy taking into account material porosity and SLM process productivity. Selective…

1267

Abstract

Purpose

The purpose of this study is the development of a global SLM-manufacturing optimization strategy taking into account material porosity and SLM process productivity. Selective laser melting (SLM) is a master forming process generating not only a near net shape geometry, but also the material with its properties. Research focuses primarily on optimal processing parameters for maximised material properties. However, the process allows also designing the material structure by internal porosity, affecting global material properties and the process productivity.

Design/methodology/approach

The study investigates the influence of the main SLM process parameters on material porosity and consequently on the static mechanical properties of hardened SS17-4PH material. Furthermore, a model for the SLM scanning productivity is developed based on the SLM processing parameters.

Findings

The results show a clear correlation between porosity level and mechanical properties. Thereby, the mechanical strength and material modulus can be varied in a wide range. The degree of internal material porosity can be correlated to the energy input defined by a set of SLM processing parameters, such as Laser power, powder layer thickness and scan speed, allowing pre-definition of a specific degree of porosity.

Originality/value

Aligning of the SLM processing parameters to the technical material requirements of the parts to be produced, e.g. maximal stresses in service, required E-modulus or lightweight aspects, enlarges the general design space significantly. In combination with the presented model for the scanning productivity, it is further possible to optimize the SLM build rate.

Details

Rapid Prototyping Journal, vol. 20 no. 6
Type: Research Article
ISSN: 1355-2546

Keywords

Open Access
Article
Publication date: 25 April 2024

Ilse Valenzuela Matus, Jorge Lino Alves, Joaquim Góis, Paulo Vaz-Pires and Augusto Barata da Rocha

The purpose of this paper is to review cases of artificial reefs built through additive manufacturing (AM) technologies and analyse their ecological goals, fabrication process…

574

Abstract

Purpose

The purpose of this paper is to review cases of artificial reefs built through additive manufacturing (AM) technologies and analyse their ecological goals, fabrication process, materials, structural design features and implementation location to determine predominant parameters, environmental impacts, advantages, and limitations.

Design/methodology/approach

The review analysed 16 cases of artificial reefs from both temperate and tropical regions. These were categorised based on the AM process used, the mortar material used (crucial for biological applications), the structural design features and the location of implementation. These parameters are assessed to determine how effectively the designs meet the stipulated ecological goals, how AM technologies demonstrate their potential in comparison to conventional methods and the preference locations of these implementations.

Findings

The overview revealed that the dominant artificial reef implementation occurs in the Mediterranean and Atlantic Seas, both accounting for 24%. The remaining cases were in the Australian Sea (20%), the South Asia Sea (12%), the Persian Gulf and the Pacific Ocean, both with 8%, and the Indian Sea with 4% of all the cases studied. It was concluded that fused filament fabrication, binder jetting and material extrusion represent the main AM processes used to build artificial reefs. Cementitious materials, ceramics, polymers and geopolymer formulations were used, incorporating aggregates from mineral residues, biological wastes and pozzolan materials, to reduce environmental impacts, promote the circular economy and be more beneficial for marine ecosystems. The evaluation ranking assessed how well their design and materials align with their ecological goals, demonstrating that five cases were ranked with high effectiveness, ten projects with moderate effectiveness and one case with low effectiveness.

Originality/value

AM represents an innovative method for marine restoration and management. It offers a rapid prototyping technique for design validation and enables the creation of highly complex shapes for habitat diversification while incorporating a diverse range of materials to benefit environmental and marine species’ habitats.

Details

Rapid Prototyping Journal, vol. 30 no. 11
Type: Research Article
ISSN: 1355-2546

Keywords

Article
Publication date: 28 October 2014

Benjamin Jaeger and Dennis Kopf

– The purpose of this paper is to discover best practices for selling stem cell based biologics and ensuring proper sales force alignment in the biomedical device industry.

Abstract

Purpose

The purpose of this paper is to discover best practices for selling stem cell based biologics and ensuring proper sales force alignment in the biomedical device industry.

Design/methodology/approach

This research is based on an immersion into the industry as well as several formal, semi-structured interviews and dozens of informal interviews of surgeons, medical staff and medical device salespersons and managers. Data were also collected and analyzed from wipricepoint.org. The factors analyzed were the number of discharges, average charge per procedure, median age, male/female patient ratio and total hospital charges per year.

Findings

Secondary data can augment primary data collection to determine the most lucrative markets for salespersons to target their efforts. In addition, the data when combined with sales force specific data can help optimize sales force alignment. Insights into the industry are also given such as how to overcome objections to the use of stem cell based biologics for spinal surgeries.

Research limitations/implications

Much of the findings are specific to only one industry (medical device sales). However, we do present a generalized process for analyzing a key source of secondary data that could be beneficial to any hospital-serving industry.

Originality/value

Within the medical equipment industries, approximately 58 per cent of sales territories were either too large or too small (Zoltners and Lorimer, 2000). This paper shows how secondary data sources can be obtained and analyzed to better focus sales force effort.

Details

International Journal of Pharmaceutical and Healthcare Marketing, vol. 8 no. 4
Type: Research Article
ISSN: 1750-6123

Keywords

Article
Publication date: 1 February 1992

Jenny Quillien and Jim Olila

Today, global competition and rapid market developments preoccupytop management. They have less time for internal issues. If not checked,this preoccupation with the external world…

1635

Abstract

Today, global competition and rapid market developments preoccupy top management. They have less time for internal issues. If not checked, this preoccupation with the external world will leave top management in the same position as the military commander who may have a brilliant battle plan but does not know or understand the nature of his own troops. To be successful, top management requires in‐depth and quality knowledge of the company′s people and the corporate culture which binds them together. Typically, top management does not get quality information. They work on unchecked hunches and shallow, filtered information. By retooling the frequently underutilized human resource manager with the analytical skills for cultural analysis, general management can be strengthened with skilled and knowledgeable co‐pilots and internal change agents. Discusses these issues and some of the basic concepts of cultural anthropology useful for analysis in both domestic and multinational corporations.

Details

Industrial and Commercial Training, vol. 24 no. 2
Type: Research Article
ISSN: 0019-7858

Keywords

Book part
Publication date: 25 April 2014

Fiona Hallett

The premise of this chapter is that methodological ‘tribes’ in higher education create ‘territories’ of research practice that do little to encourage those new to research to…

Abstract

The premise of this chapter is that methodological ‘tribes’ in higher education create ‘territories’ of research practice that do little to encourage those new to research to reconceptualise methodology. This premise is based upon the perceived absence of dialogic space, beyond an expert academic community, that would allow open critique of the degree to which research methodologies make sense for those ‘on the ground’. As such, it is argued that practices of this nature signify methodological process over genuine debate around methodological theory, which can serve to encourage methodological idolatry. Phenomenography has been selected, and analysed, in this chapter as an example of a research methodology used in higher education, in order to reveal both the encoded messages of phenomenography and the layering of meaning that such messages convey. The chapter concludes by arguing for a repositioning of research methodologies as ontologically coherent heuristic devices that enable us to generate and test theory, rather than as processes of discovery that may lead us to unsubstantiated claims of knowledge generation.

Details

Theory and Method in Higher Education Research II
Type: Book
ISBN: 978-1-78350-823-5

Article
Publication date: 8 April 2020

Donal Rogan, Gillian Hopkinson and Maria Piacentini

This paper aims to adopt a relational dialectics analysis approach to provide qualitative depth and insight into the ways intercultural families manage intercultural tensions…

Abstract

Purpose

This paper aims to adopt a relational dialectics analysis approach to provide qualitative depth and insight into the ways intercultural families manage intercultural tensions around consumption. The authors pay particular attention to how a relational dialectics analysis reveals a relational change in the family providing evidence to demonstrate how a family’s unique relational culture evolves and transitions.

Design/methodology/approach

Qualitative insights from a relational-dialectic analysis on 15 intercultural families are used to illustrate the interplay of stability with instability in the management of intercultural dialectic tensions within these families.

Findings

Intercultural dialectical interplay around food consumption tensions are implicit tensions in the household’s relational culture. Examples of dialectical movement indicating relational change are illustrated; this change has developmental consequences for the couples’ relational cultures.

Research limitations/implications

This study provides qualitative insights on relational dialectics in one intercultural family context and reveals and analyses the dialectical dimensions around consumption in the context of intercultural family relationships. The research approach could be considered in other intercultural and relational contexts.

Practical implications

Family narratives can be analysed within the context of two meta-dialectics that directly address how personal relationships evolve; indigenous dialectic tensions within a family can also be identified.

Originality/value

This paper demonstrates the qualitative value of a relational dialectics analysis in revealing how food consumption changes within families are the result of reciprocal or interdependent learning, which has consequences for relational change.

Details

Qualitative Market Research: An International Journal, vol. 24 no. 1
Type: Research Article
ISSN: 1352-2752

Keywords

Article
Publication date: 20 September 2011

David Smith and Kerry Jacobs

This paper aims to present an examination of the characterisation of accounting and accountants in popular music. Some authors have considered the place of accounting in popular…

19596

Abstract

Purpose

This paper aims to present an examination of the characterisation of accounting and accountants in popular music. Some authors have considered the place of accounting in popular culture and the social perceptions of accounting and accountants. This research aims to advance this work by suggesting that music both offers a powerful insight into social perceptions of accounting, and serves both to reflect and reinforce these perceptions.

Design/methodology/approach

Songs featuring accountants were identified, which was verified by a search of song lyric databases using the search terms “accountant/s”, “accounting” and “accounts” and accounting terms. The lyrics were analysed on the basis of how the accountants or accounting activity were presented, and a taxonomy was established.

Findings

Some songs reflect the image of the accountant as both the facilitator and accoutrement of positions of wealth and privilege. The dark side of the image is the assertion that the accountant will abuse their position of trust. The final, and perhaps most sinister image, is that of accountants as the perpetrators of fraud and deception. It is concluded that these images of accountants and accounting illustrate that the accounting profession is facing a significant challenge in terms of its image and relationship to the public.

Originality/value

This study is the first to consider the characterisation of accountants/accounting in popular music. Recent representations have tended to characterise accounting and accountants in a particularly negative light. Accountants are presented as agents in the destruction of the environment, exploiters of the poor, accessories and agents of the wealthy and constructors of a truth” that benefits the rich. Overall, the representation of accounting in music tends to fit the position adopted by many of the most critical accounting authors. A particular aspect of the oppressive role exercised by accountants and accounting in society is as the embodiment of, and advocate for, or even a metaphor for, a particular form of economic reason that progressively suppresses and destroys relationships, the environment and artistic creativity in the interest of financial gain.

Details

Accounting, Auditing & Accountability Journal, vol. 24 no. 7
Type: Research Article
ISSN: 0951-3574

Keywords

Article
Publication date: 24 November 2023

Alexandre Dos Reis and José Manuel Cristovão Veríssimo

The purpose of this study is to analyze the aspects of the organizational culture (OC) of companies operating in the Brazilian oil, gas and biofuels (O&G) sector based on…

Abstract

Purpose

The purpose of this study is to analyze the aspects of the organizational culture (OC) of companies operating in the Brazilian oil, gas and biofuels (O&G) sector based on semistructured interviews with managers of these organizations and its content analysis.

Design/methodology/approach

This research was conducted based on semistructured interviews with 12 managers of Brazilian O&G companies and analyzed with a computer-assisted qualitative data analysis software, namely, MAXQDA™.

Findings

The results make it possible to obtain the perception of managers about OC, generally understood as a set of attributes and variables of social order, supported by the historical–culturalist theoretical approach. Information about the explicit and implicit manifestation of culture, as well as the evaluation of the most appropriate research instruments and metrics, were also obtained after the interviews.

Originality/value

This study presents detailed results about OC and its characteristics in the perception of managers of the O&G companies that operate in the Brazilian market.

Details

International Journal of Energy Sector Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1750-6220

Keywords

Article
Publication date: 11 June 2018

Letizia Caronia

The purpose of this paper is to consider “at home ethnography” and “abroad ethnography” not as labels standing for different kinds of fieldwork “out there” but rather as the poles…

Abstract

Purpose

The purpose of this paper is to consider “at home ethnography” and “abroad ethnography” not as labels standing for different kinds of fieldwork “out there” but rather as the poles of a continuum identifying the ethnographer’s situated, relative and ever changing epistemic status.

Design/methodology/approach

Building on data from a recent fieldwork in an intensive care unit, the author identifies the different epistemic circumstances that originate from the entanglement of the multiple territories of knowledge at stake in any ethnography of complex organizations.

Findings

The analysis shows how the participants’ relative access to knowledge and rights to claim it vary according to the circumstances and the unfolding of the interaction. The discussion advances that the ethnographer oscillates between “being abroad” and “being at home” as if he was constantly moving between the two classical positions of ethnographic work: making the familiar strange as it is typical of ethnographies focusing on the “very ‘ordinariness’ of normality” (Ybema et al., 2009, p. 2), and making the strange familiar as it is typical of anthropologists studying exotic communities.

Originality/value

The paper contributes to the still ongoing debate on “at home” organizational ethnography, by addressing the limits of the “insider doctrine” (Merton, 1972) that still pervades contemporary ethnography and proposes cognitive oscillation as the challenging mindset of any ethnographer-in-the-field.

Details

Journal of Organizational Ethnography, vol. 7 no. 2
Type: Research Article
ISSN: 2046-6749

Keywords

Article
Publication date: 1 December 2002

Craig E. Carroll

Serves as an introduction to the special issue on the strategic use of the past and future in organizations published in the Journal of Organizational Change Management. The issue…

2831

Abstract

Serves as an introduction to the special issue on the strategic use of the past and future in organizations published in the Journal of Organizational Change Management. The issue of how organizations and their members appropriate the past and future in the context of organizational identity is examined.

Details

Journal of Organizational Change Management, vol. 15 no. 6
Type: Research Article
ISSN: 0953-4814

Keywords

1 – 10 of 17