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1 – 10 of 29
Article
Publication date: 23 October 2018

Yinmin (Morris) Wang, Chandrika Kamath, Thomas Voisin and Zan Li

Density optimization is the first critical step in building additively manufactured parts with high-quality and good mechanical properties. The authors developed an approach that…

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Abstract

Purpose

Density optimization is the first critical step in building additively manufactured parts with high-quality and good mechanical properties. The authors developed an approach that combines simulations and experiments to identify processing parameters for high-density Ti-6Al-4V using the laser powder-bed-fusion technique. A processing diagram based on the normalized energy density concept is constructed, illustrating an optimized processing window for high- or low-density samples. Excellent mechanical properties are obtained for Ti-6Al-4V samples built from the optimized window.

Design/methodology/approach

The authors use simple, but approximate, simulations and selective experiments to design parameters for a limited set of single track experiments. The resulting melt-pool characteristics are then used to identify processing parameters for high-density pillars. A processing diagram is built and excellent mechanical properties are achieved in samples built from this window.

Findings

The authors find that the laser linear input energy has a much stronger effect on the melt-pool depth than the melt-pool width. A processing diagram based on normalized energy density and normalized hatch spacing was constructed, qualitatively indicating that high-density samples are produced in a region when 1 < E* < 2. The onset of void formation and low-density samples occur as E* moves beyond a value of 2. The as-built SLM Ti-6Al-4V shows excellent mechanical performance.

Originality/value

A combined approach of computer simulations and selected experiments is applied to optimize the density of Ti-6Al-4V, via laser powder-bed-fusion (L-PBF) technique. A series of high-density samples are achieved. Some special issues are identified for L-PBF processes of Ti-6Al-4V, including the powder particle sticking and part swelling issues. A processing diagram is constructed for Ti-6Al-4V, based on the normalized energy density and normalized hatch spacing concept. The diagram illustrates windows with high- and low-density samples. Good mechanical properties are achieved during tensile tests of near fully dense Ti-6Al-4V samples. These good properties are attributed to the success of density optimization processes.

Details

Rapid Prototyping Journal, vol. 24 no. 9
Type: Research Article
ISSN: 1355-2546

Keywords

Book part
Publication date: 15 December 2005

Lynn Wood Mollenauer

Through an analysis of the French crown's investigation into the greatest scandal of Louis XIV's reign, this article examines the unstable boundary between sin and crime at the…

Abstract

Through an analysis of the French crown's investigation into the greatest scandal of Louis XIV's reign, this article examines the unstable boundary between sin and crime at the height of the Catholic Reformation in France. The prosecution of the suspects in the Affair of the Poisons, it argues, allowed a key change in the French state's definition of crime. In 1682, the crown decriminalized magic. It continued to prosecute “so-called magicians,” however, because their practices were deemed sacrilegious. Any person convicted of “treason against God” was therefore sentenced to the most severe form of execution inflicted under French law: to be burnt alive. Louis XIV's determination to ensure social order and religious orthodoxy was made manifest in the state's rituals of punishment.

Details

Crime and Punishment: Perspectives from the Humanities
Type: Book
ISBN: 978-0-76231-245-0

Content available
Book part
Publication date: 24 April 2023

Abstract

Details

Essays in Honor of Joon Y. Park: Econometric Methodology in Empirical Applications
Type: Book
ISBN: 978-1-83753-212-4

Article
Publication date: 10 May 2018

Valentina Carbone, Aurélien Rouquet and Christine Roussat

The growth of collaborative consumption is beginning to stimulate management research on this phenomenon. However, so far, few scholars have studied the logistics aspects related…

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Abstract

Purpose

The growth of collaborative consumption is beginning to stimulate management research on this phenomenon. However, so far, few scholars have studied the logistics aspects related to these developments. The purpose of this paper is to develop a conceptual approach to the logistics at work in collaborative consumption.

Design/methodology/approach

The authors adopt an inductive, exploratory research method, based on a content analysis involving 32 collaborative consumption initiatives screened through their websites and other secondary sources.

Findings

Based on the way logistics is organized in these initiatives, the authors identify and describe four types of logistics: peer to peer, business, crowd, and open logistics.

Practical implications

The paper makes recommendations for improving the management of collaborative consumption logistics.

Originality/value

Our results enrich the literature about crowd practices and collaborative consumption by conceptualizing alternative roles played by logistics and revealing its specific organizational forms.

Details

International Journal of Physical Distribution & Logistics Management, vol. 48 no. 6
Type: Research Article
ISSN: 0960-0035

Keywords

Article
Publication date: 1 December 1907

THE enterprise of two London newspapers, the Tribune (for the second time) and the Daily Chronicle, in organizing exhibitions of books affords a convenient excuse for once again…

Abstract

THE enterprise of two London newspapers, the Tribune (for the second time) and the Daily Chronicle, in organizing exhibitions of books affords a convenient excuse for once again bringing forward proposals for a more permanent exhibition. On many occasions during the past twenty years the writer has made suggestions for the establishment of a central book bazaar, to which every kind of book‐buyer could resort in order to see and handle the latest literature on every subject. An experiment on wrong lines was made by the Library Bureau about fifteen years ago, but here, as in the exhibitions above mentioned, the arrangement was radically bad. Visiting the Daily Chronicle show in company with other librarians, and taking careful note of the planning, one was struck by the inutility of having the books arranged by publishers and not by subjects. Not one visitor in a hundred cares twopence whether books on electricity, biography, history, travel, or even fairy tales, are issued by Longmans, Heinemann, Macmillan, Dent or any other firm. What everyone wants to see is all the recent and latest books on definite subjects collected together in one place. The arrangements at the Chronicle and Tribune shows are just a jumble of old and new books placed in show‐cases by publishers' names, similar to the abortive exhibition held years ago in Bloomsbury Street. What the book‐buyer wants is not a miscellaneous assemblage of books of all periods, from 1877 to date, arranged in an artistic show‐case and placed in charge of a polite youth who only knows his own books—and not too much about them—but a properly classified and arranged collection of the newest books only, which could be expounded by a few experts versed in literature and bibliography. What is the use of salesmen in an exhibition where books are not sold outright? If these exhibitions were strictly limited to the newest books only, there would be much less need for salesmen to be retained as amateur detectives. Another decided blemish on such an exhibition is the absence of a general catalogue. Imagine any exhibition on business lines in which visitors are expected to cart away a load of catalogues issued separately by the various exhibitors and all on entirely different plans of arrangement! The British publisher in nearly everything he does is one of the most hopeless Conservatives in existence. He will not try anything which has not been done by his grandfather or someone even more remote, so that publishing methods remain crystallized almost on eighteenth century lines. The proposal about to be made is perhaps far too revolutionary for the careful consideration of present‐day publishers, but it is made in the sincere hope that it may one day be realized. It has been made before without any definite details, but its general lines have been discussed among librarians for years past.

Details

New Library World, vol. 10 no. 6
Type: Research Article
ISSN: 0307-4803

Article
Publication date: 23 October 2007

Fiona Rowe, Donald Stewart and Carla Patterson

The purpose of this paper is to develop a framework to demonstrate the contribution of whole school approaches embodied by the health‐promoting school approach, to the promotion…

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Abstract

Purpose

The purpose of this paper is to develop a framework to demonstrate the contribution of whole school approaches embodied by the health‐promoting school approach, to the promotion of school connectedness, defined as the cohesiveness between diverse groups in the school community, including students, families, school staff and the wider community.

Design/methodology/approach

A cross‐disciplinary review of literature was conducted to identify strategies consistent with the health‐promoting school approach and the values and principles that promote school connectedness. The review included peer‐reviewed articles and published books and reports identified from the databases spanning the education, health, social science and science disciplines and used search terms encompassing health and mental health promotion, schools, social connectedness, belonging and attachment. The paper is also a framework of the contribution of the health‐promoting school approach to promoting school connectedness and was developed drawing on health promotion strategies at the broader community level known to foster connectedness.

Findings

The paper found that the framework developed illustrates how the health‐promoting school approach has the potential to build school connectedness through two major mechanisms: inclusive processes that involve the diversity of members that make up a community; the active participation of community members and equal “power” relationships, or equal partnerships among community members; and supportive structures such as school policies, the way the school is organised and its physical environment, that reflect the values of participation, democracy and inclusiveness and/or that promote processes based on these values.

Practical implications

In this paper the detailed mechanisms outlined in the framework provide practical strategies for health promotion practitioners and educators to use in the everyday school setting to promote school connectedness.

Originality/value

This paper draws together substantial bodies of evidence and makes a persuasive case for the contribution of the health‐promoting school approach to building school connectedness.

Details

Health Education, vol. 107 no. 6
Type: Research Article
ISSN: 0965-4283

Keywords

Article
Publication date: 1 June 1976

G.W. Patrick

In the tinplate food container it is to be desired that tin is the sacrificial member of the couple, conferring protection to the steel base while corroding at a slow rate itself…

Abstract

In the tinplate food container it is to be desired that tin is the sacrificial member of the couple, conferring protection to the steel base while corroding at a slow rate itself. This is the case in many food products, including a large group of acid food products typified by the acid fruits. This is an important pack in this country, large quantities being packed and exported each year. Special attention will be given to corrosion in the acid fruit packs under various headings.

Details

Anti-Corrosion Methods and Materials, vol. 23 no. 6
Type: Research Article
ISSN: 0003-5599

Article
Publication date: 1 March 2003

Yunus Kathawala and Khaled Abdou

The services industry, especially the professional sector in the auditing, accounting, and financial consulting, was and still is moving toward globalization. This move was…

5487

Abstract

The services industry, especially the professional sector in the auditing, accounting, and financial consulting, was and still is moving toward globalization. This move was characterized by the cooperation between headquartered US firms such as the Big‐five and other related firms all over the world. The result was increasing the efficiency and effectiveness. In addition, it satisfied the multinational companies by providing the service required by the branches of those multinational clients. The efficiency and effectiveness of globalization is not a simple issue. Several factors are involved to achieve this issue. One important factor is balancing the trade‐off between decreasing the costs and increasing the quality of the services rendered. The paper proposes one way to achieve this balancing is by the appropriate coordination between the headquarters and their branches.

Details

Managerial Auditing Journal, vol. 18 no. 2
Type: Research Article
ISSN: 0268-6902

Keywords

Content available
Article
Publication date: 30 September 2014

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Abstract

Details

Journal of Manufacturing Technology Management, vol. 25 no. 8
Type: Research Article
ISSN: 1741-038X

Book part
Publication date: 10 April 2020

Aurélien Acquier, Valentina Carbone and Laëtitia Vasseur

This chapter explores how classic and institutional entrepreneurs in the sharing economy (SE) frame and make sense of the emergent, plural, and contested SE concept. The authors

Abstract

This chapter explores how classic and institutional entrepreneurs in the sharing economy (SE) frame and make sense of the emergent, plural, and contested SE concept. The authors address this question through an investigation of an attempt to institutionalize the SE as a separate field in France, through data collected among SE entrepreneurs gravitating around OuiShare, a leading institutional entrepreneur for the SE. To analyze the plurality of discursive framings within the SE field, we explored how classic entrepreneurs affiliated with the SE and institutional entrepreneurs made sense of the concept and its related practices by referring to different theories and narratives. The results reveal that classic entrepreneurs used and combined four distinct theoretical currents (access economy, commons, gift, and libertarianism) to frame their projects. This framing diversity was further reinforced at the meso level by specific forms of institutional entrepreneurship which reflected and actively built on such framing diversity. However, over time, such heterogeneity negatively affects the internal coherence of the field. Based on these results, the authors discuss the impact of enduring framing diversity on the SE organizational field emergence and development.

Details

Theorizing the Sharing Economy: Variety and Trajectories of New Forms of Organizing
Type: Book
ISBN: 978-1-78756-180-9

Keywords

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