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Article
Publication date: 9 December 2022

Michael Rosenthal, Markus Rüggeberg, Christian Gerber, Lukas Beyrich and Jeremy Faludi

The purpose of this study is to quantify the vertical shrinkage rates and the mechanical strength of three-dimensional (3D) printed parts for a variety of wood-based materials for…

202

Abstract

Purpose

The purpose of this study is to quantify the vertical shrinkage rates and the mechanical strength of three-dimensional (3D) printed parts for a variety of wood-based materials for liquid deposition modeling.

Design/methodology/approach

The overall hypothesis was that a well-chosen combination of binders, fibers and fillers could reduce shrinkage in the Z dimension and increase compressive and flexural strength (DIN 52185, 52186). To test this assumption, eight sub-hypotheses were formulated. Mixtures of the ingredients were chosen in different ratios to measure the performance of prints. For time efficiency, an iterative heuristic approach was used – not testing all variations of all variables in even increments, but cutting off lines of testing when mixtures were clearly performing poorly.

Findings

The results showed that some mixtures had high dimensional accuracy and strength, while others had neither, and others had one but not the other. Shrinkage of 3D printed objects was mainly caused by water release during drying. An increase of the wood as well as the cement, sand, salt and gypsum content led to reduced vertical shrinkage, which varied between 0 and 23%. Compressive and flexural strength showed mixed trends. An increase in wood and salt content worsened both strength properties. The addition of fibers improved flexural, and the addition of cement improved compression strength. The highest strength values of 14 MPa for compressive and 8 MPa for flexural strength were obtained in the test series with gypsum.

Originality/value

This paper is an important milestone in the development of environmentally friendly materials for additive manufacturing. The potential of many ingredients to improve physical properties could be demonstrated.

Details

Rapid Prototyping Journal, vol. 29 no. 5
Type: Research Article
ISSN: 1355-2546

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Book part
Publication date: 30 May 2017

Iris Saliterer, Martin Jones and Ileana Steccolini

Governments are no strangers to dealing with crises. On the contrary, a central role of any government is to absorb, navigate and mitigate them. However, crises themselves are…

Abstract

Governments are no strangers to dealing with crises. On the contrary, a central role of any government is to absorb, navigate and mitigate them. However, crises themselves are unpredictable and represent a significant challenge to governments at both the national and local level. Despite such uncertainty, studying how governments in different countries respond to crises offers a great opportunity to learn from the past and to understand the nature of resilience in the face of significant shocks and disruption.

This book charts how local governments in 11 countries, covering Europe, the United States, South America and Australia, responded to the recent crises and austerity period by shedding new light on the role of contextual- and policy-related conditions as well as the internal capacities and conditions that may influence responses and, ultimately, performance.

This chapter sets the scene for the book, by highlighting the relevance of examining financial crises and austerity and the ways in which governments, and more specifically, local governments, are facing the related shocks. In doing so, it proposes a preliminary framework for exploring governmental financial resilience at the local level. In such a framework, financial resilience is seen as the dynamic combination of internal and external dimensions, including the external environment, financial shocks, vulnerability, anticipatory capacity and coping capacity.

Details

Governmental Financial Resilience
Type: Book
ISBN: 978-1-78714-262-6

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Article
Publication date: 1 May 2000

Bronwen Brown

76

Abstract

Details

Reference Reviews, vol. 14 no. 5
Type: Research Article
ISSN: 0950-4125

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Book part
Publication date: 26 September 2002

Abstract

Details

Re-Imaging Business Ethics: Meaningful Solutions for a Global Economy
Type: Book
ISBN: 978-0-76230-955-9

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Case study
Publication date: 5 March 2018

Erica Berte, Vijaya Narapareddy, Marlene M. Reed and J. Kay Keels

“I think I would like to write a case. What do I do now?” The purpose of this paper is to answer this often-asked question by presenting a useful guide for case writers which…

Abstract

Synopsis

“I think I would like to write a case. What do I do now?” The purpose of this paper is to answer this often-asked question by presenting a useful guide for case writers which examines the entire process of case writing beginning with the initial idea and proceeding through required stages leading to the publication of case studies. Further, this guide seeks to emphasize that case writing is a form of research, not just story telling. Ultimately, the increasing interest of scholars in researching, writing, and publishing pedagogical cases provided the impetus for this paper. The four major case writing processes identified in this paper include ideation (idea generation), creation (crafting the case study), application (creating the Instructor’s Manual), and publication (publishing the case). Each of these four processes is presented in detail including examples, pitfalls, and resources. This work is intended to assist novice, as well as experienced, case authors who seek advice on crafting and publishing pedagogical cases in refereed journals. Resources presented in this paper should be helpful especially for aspiring and as yet unpublished case writers.

Research methodology

The paper is based partially on archival research, but most of the content is based on the substantial experience of the authors.

Relevant courses and levels

The paper is relevant for upper-level undergraduates as well as graduate students interested in pedagogically based research.

Details

The CASE Journal, vol. 14 no. 2
Type: Case Study
ISSN: 1544-9106

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Man-Eating Monsters
Type: Book
ISBN: 978-1-78769-528-3

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Article
Publication date: 1 July 1997

Michael Morrison and Annie Rosenthal

Discusses that the only true source of sustainable competitive advantage seems to be by building learning organizations. Says that, in order to ensure the survival of their…

1084

Abstract

Discusses that the only true source of sustainable competitive advantage seems to be by building learning organizations. Says that, in order to ensure the survival of their organizations, managers need to focus on individual and organizational learning, the development of a shared vision, an awareness of the internal environment and the external context, and that a key requirement in this process is the ability to surface and test the mental models of people throughout the organization. Also one of the ways of testing mental models is within the context of action. States that exploration of effective action is examined using the Rosenthal stage. Uses an action‐based method using a miniature stage. The Rosenthal stage involves a five‐step process of surfacing, externalizing, reflecting, revealing, and active dialogue of people’s perceptions of their organization. Presents a case study which demonstrates the surfacing of a mental model of a senior manager in a multinational communications organization. The power of the Rosenthal stage enabled this manager, after one session, to gain contextual insight into the breadth of his organization, and the value of his contribution.

Details

Journal of Workplace Learning, vol. 9 no. 4
Type: Research Article
ISSN: 1366-5626

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Book part
Publication date: 24 November 2022

Khara Lukancic

In interviews, Jamie Lee Curtis positions Halloween (2018) as a #MeToo film. As merely self-serving publicity, this reading is far too simplistic. In Halloween (1978) Laurie…

Abstract

In interviews, Jamie Lee Curtis positions Halloween (2018) as a #MeToo film. As merely self-serving publicity, this reading is far too simplistic. In Halloween (1978) Laurie Strode is victimised; she then assumes the role of quintessential Final Girl as described by Carol J. Clover, providing the template for the entire sub-genre of horror slasher films birthed in its wake. However, in the similarly titled 2018 film, Laurie is no longer a victim. Instead of following the role of the stereotypical Final Girl of slasher films, she falls more in line with one of Yvonne Tasker's Warrior Women.

This chapter investigates Laurie Strode's transformation throughout the Halloween franchise. Once passive and victimised, Laurie has evolved: No longer the Final Girl – or victim – her position and behaviour in this film is much more in line with the neoliberal Warrior Woman of action films. Thus, the film assigns her the role of action heroine as a vehicle for responding to the concerns of the #MeToo era – and in this era, women are no longer victims. Women can and will fight back.

Details

Gender and Action Films 2000 and Beyond
Type: Book
ISBN: 978-1-80117-518-0

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Article
Publication date: 9 March 2021

Thiago Machado Leitão, Leonardo Luiz Lima Navarro, Renato Flórido Cameira and Edison Renato Silva

This study conducts a systematic literature review (SLR) on serious games in the BPM domain, in order to answer: RQ1 – what are BPM games' learning objectives and design…

1294

Abstract

Purpose

This study conducts a systematic literature review (SLR) on serious games in the BPM domain, in order to answer: RQ1 – what are BPM games' learning objectives and design characteristics? RQ2 – How rigorously each BPM game was evaluated in terms of their effectiveness and entertainment?.

Design/methodology/approach

We followed the PRISMA statement method and systematic literature review standards. Selected studies were analyzed using qualitative evidence synthesis.

Findings

We found 37 references that describe 15 serious games within the BPM domain. Games are diverse, ranging from analog games that need a few hours to complete to complex digital games that require many sessions. Game evaluation should be generally improved as 27 publications can be considered as quasi-experimental or nonexperimental and potentially biased.

Research limitations/implications

Future research should focus on developing new games about process implementation and using other notations besides BPMN. More studies testing the reliability and validity of existing games in different settings and using more rigorous experimental designs are also necessary. Practitioners can identify thoroughly evaluated games relevant to their learning objectives.

Originality/value

This is the first SLR about BPM games. It consolidates the literature, analyzes, describes and categorizes 15 games with respect to their internal characteristics and evaluation reliability.

Details

Business Process Management Journal, vol. 27 no. 3
Type: Research Article
ISSN: 1463-7154

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Book part
Publication date: 23 September 2019

Shahar Robinstain

State leaders’ decision-making calculus is often attributed to external factors. The political arena, international community pressure and a country’s military stance all take…

Abstract

State leaders’ decision-making calculus is often attributed to external factors. The political arena, international community pressure and a country’s military stance all take centre stage in the analysis of national security decisions. Little weight is given to personal aspects of a leader’s psyche in explaining these decisions; this is true to the bulk of the research regarding this topic. This study theorizes and tests a positive link between Israeli leaders’ combat military experience and their propensity to enter into ‘peacemaking’ decisions namely, peace talks, cease fires and unilateral withdrawals. This research uses a new database comprising all peacemaking decision points in Israel’s history, looking at the pressure put on a leader from outside factors and his military experience to explain the decision taken. It finds a strong significant link between combat experience and the tendency to enter in a peacemaking decision with little regard to ideological affiliation, shedding a new light on Israeli politicians from both sides of the aisle.

Details

How Do Leaders Make Decisions?
Type: Book
ISBN: 978-1-78743-394-6

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