Keval P. Prajadhiana, Yupiter H.P. Manurung, Alexander Bauer, Mohd Shahriman Adenan, Nur Izan Syahriah, Mohamed Ackiel Mohamed, Birgit Awiszus, Marcel Graf and Andre Haelsig
This paper aims to numerical and experimental analysis on substrate deformation and plastic strain induced by wire arc additive manufacturing.
Abstract
Purpose
This paper aims to numerical and experimental analysis on substrate deformation and plastic strain induced by wire arc additive manufacturing.
Design/methodology/approach
The component has the form of a hollow, rectangular thin wall consisting of 25 deposition layers of SS316L on an SS304 substrate plate. Thermo-mechanical finite element analysis was applied with Goldak’s double-ellipsoidal heat-source model and a non-linear isotropic hardening rule based on von Mises’ yield criterion. The layer deposition was modelled using simplified geometry to minimize overall pre-processing work and computational time.
Findings
A new material modelling of SS316L was obtained from the chemical composition of the evolved component characterized by scanning electron microscope/energy dispersive X-ray and further generated by an advanced material-modelling software JMatPro. In defining heat-transfer coefficients, transient thermometric analysis was first performed in the bead and on the substrate, which was followed by an adjustment of the heat-transfer coefficients to reflect the actual temperature distribution. Based on the adjusted model and boundary conditions, sensitivity analysis was conducted prior to the ultimate simulation of substrate deformation and equivalent plastic strain. Furthermore, this simulation was verified by conducting a series of automated wire + arc additive manufacturing tests using robotic gas Metal arc welding with distortion measured by coordinate-measurement machine and equivalent plastic strain measured by optical three-dimensional-metrology measurements (Gesellschaft für Optische Messtechnik).
Originality/value
It can be concluded that a proper numerical computation using the adjusted model and property-evolved material exhibits a similar trend with acceptable agreement compared to the experiment by yielding an error percentage up to 30% for deformation and up to 21% for equivalent plastic strain at each individual measurement point.
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Marcel Grein, Annika Wiecek and Daniel Wentzel
Existing research on product design has found that a design’s complexity is an important antecedent of consumers’ aesthetic and behavioural responses. This paper aims to shed new…
Abstract
Purpose
Existing research on product design has found that a design’s complexity is an important antecedent of consumers’ aesthetic and behavioural responses. This paper aims to shed new light on the relationship between design complexity and perceptions of design quality by taking the effects of consumers’ naïve theories into account.
Design/methodology/approach
The hypotheses of this paper are tested in a series of three experiments.
Findings
The findings from three studies show that the extent to which consumers prefer more complex product designs to simpler ones depends on the extent to which they believe that the complexity of a design is indicative of the effort or of the talent of the designers involved in the design process. These competing naïve theories, in turn, are triggered by contextual information that consumers have at their disposal, such as the professional background of a designer or the brand that is associated with a particular design.
Research limitations/implications
This research was limited to a design's complexity as the central design element and to the effects of two naïve theories. Future research may also take other design factors and consumer heuristics into account.
Practical implications
This research reveals that the extent to which managers may successfully introduce both complex and simple designs may depend on the reputation of a company’s designers and the prestige of a brand.
Originality/value
This research examines design complexity from a novel theoretical perspective and shows that the effect of design complexity on perceptions of design quality is contingent on two specific naïve theories of consumers.
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Candy Bianco, Elliott Levy, Mary Marcel, Mark Nixon and Karen Osterheld
This chapter describes the development of a two-course sequence, which explicitly breaks down the silos between the accounting and finance disciplines. A descriptive narrative…
Abstract
This chapter describes the development of a two-course sequence, which explicitly breaks down the silos between the accounting and finance disciplines. A descriptive narrative demonstrates how these courses integrate introductory courses in general business, managerial accounting, financial accounting and finance, and are taught freshman year. The courses are based around an 18-chapter Instructional Narrative about a fictitious company, Windspark, which evolves from a start-up service business in the wind turbine industry to a retailer of parts and then a manufacturer. Topics are introduced as the entrepreneurs in the Instructional Narrative require business knowledge. Individual faculty members teach an entire course, rather than teams comprised from different disciplines. A diagnostic quiz at the beginning of the second course tests students’ understanding and retention of material in the first course. The vast majority of students pass the diagnostic quiz on the first try. Despite its rigor and difficulty, the sequence has coincided with a significant uptick in students choosing to major in finance and accounting. This sequence demonstrates the feasibility and replicability of teaching a truly integrated introductory accounting and finance course sequence. Greater coordination and cooperation between disciplines is possible, with measurable benefits for students.
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Anna Laura Hidegh, Carmen Svastics, Zsuzsanna Győri and Sara Csillag
While it is argued that entrepreneurship provides considerable freedom, it is also underlined that it might have the potential for exclusion and oppression. The study contributes…
Abstract
Purpose
While it is argued that entrepreneurship provides considerable freedom, it is also underlined that it might have the potential for exclusion and oppression. The study contributes to this debate and aims to investigate how entrepreneurs with disabilities (EWD) ascribe meaning to freedom in a contested terrain informed by entrepreneurial autonomy as well as constraints due to impairments and an ableist social environment.
Design/methodology/approach
The study uses a qualitative approach and builds upon the critical concepts of negative, positive and social freedom as a theoretical lens for the in-depth analysis of the twenty-nine semi-structured interviews with EWD in Hungary.
Findings
Findings indicate that EWD experiences freedom in ambivalent ways. Engaging in the discourse of entrepreneurship offers a subversive discursive toolkit to debunk the constraints established by ableism, enabling both negative and positive freedom. However, individualism being at the heart of entrepreneurship results in othering and undermines social freedom. Thus, while entrepreneurship offers greater individual freedom in both a negative and a positive sense for people with disabilities (PWD), it nevertheless fails to promote collective social change.
Originality/value
Contributing to the critical disability literature, findings contrast the view that having an impairment only reduces a person's abilities and highlight that it also affects the very nature of liberty. Contributing to critical studies on entrepreneurship, the case of EWD provides empirical evidence for understanding the simultaneous emancipatory and oppressive character of entrepreneurship through the interplay of the subjective experience of freedom related to disability and entrepreneurship.
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This chapter studies trends in income distributions and inequality in the European Union using data from the European Union Statistics on Income and Living Conditions. The author…
Abstract
This chapter studies trends in income distributions and inequality in the European Union using data from the European Union Statistics on Income and Living Conditions. The author models the income distribution for each country under a Dagum distribution assumption and using maximum likelihood techniques. The author uses parameter estimates to form distributions for regions defined as finite mixtures of the country distributions. Specifically, the author studies the groups of ‘new’ and ‘old’ countries depending on the year they joined the European Union. The author provides formulae and estimates for the regional Gini coefficients and Lorenz curves and their decomposition for all the survey years from 2007 through 2011. The estimates of this study show that the ‘new’ European Union countries have become richer and less unequal over the observed years, while the ‘old’ ones have undergone a slight increase in inequality which is however not significant at conventional levels.
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Andrea Graf and Marion Mertesacker
The purpose of this paper is to develop recommendations for measures assessing intercultural training needs for international human resource management. Based on scientific as…
Abstract
Purpose
The purpose of this paper is to develop recommendations for measures assessing intercultural training needs for international human resource management. Based on scientific as well as application‐oriented criteria the aim is to select six measures assessing general intercultural competencies and with the help of behaviour ratings in interactive intercultural exercises to evaluate the psychometric quality and practicability of the questionnaires for training purposes.
Design/methodology/approach
Psychometric quality including prognostic power of ICSI, FLCS, NVCCS, ISAS, TIHK, and SIB was tested by correlating subjects' questionnaires results with observations of their actual behaviour in intercultural exercises.
Findings
Satisfying psychometric quality and prognostic validity of almost all measures was found. Especially TIHK, ICSI, and FLCS score well for assessing training needs whereas the results for SIB were problematic.
Research limitations/implications
The study observed student participants of the same culture. Replication studies should examine large samples of different cultural backgrounds and manager populations.
Practical implications
Human resource managers may benefit from gaining knowledge about which measures to use for identifying employee's weaknesses in intercultural competence in order to create tailor‐made training interventions.
Originality/value
The study is the first providing information about the psychometric quality, including predictive power, of six measures, that assess intercultural skills to detect intercultural training needs.
Details
Keywords
ARIES, PHILIPPE. Un lexique par phrases descriptives. Bulletin de l'A.I.D., vol. 5, no. 4, 1966, p. 99–101.