Gregory Taylor, Xin Wang, Leah Mason, Ming C. Leu, K. Chandrashekhara, Timothy Schniepp and Ross Jones
The purpose of this paper is to study the flexural behavior of additively manufacture Ultem 1010 parts. Fused deposition modeling (FDM) process has become one of most widely used…
Abstract
Purpose
The purpose of this paper is to study the flexural behavior of additively manufacture Ultem 1010 parts. Fused deposition modeling (FDM) process has become one of most widely used additive manufacturing methods. The process provides the capability of fabricating complicated shapes through the extrusion of plastics onto a print surface in a layer-by-layer structure to build three-dimensional parts. The flexural behavior of FDM parts are critical for the evaluation and optimization of both material and process.
Design/methodology/approach
This study focuses on the performance of FDM solid and sparse-build Ultem 1010 specimens. Flexure tests (three-point bend) are performed on solid-build coupons with varying build orientation and raster angle. These parameters are investigated through a full-factorial design of experiments (DOE) to determine optimal build parameters. Air gap, raster width and contour width are held constant. A three-dimensional nonlinear finite element model is built to simulate the flexural behavior of the FDM parts.
Findings
Experimental results include flexure properties such as yield strength and modulus, as well as analysis of the effect of change in build parameters on material properties. The sparse-build FDM parts chosen from the experimental tests are simulated based on this developed model. Thermo-mechanical simulation results show that the finite element simulation and experimental tests are in good agreement. The simulation can be further extended to other complicated FDM parts.
Originality/value
From the DOE study, sparse-build coupons with specific build parameters are fabricated and tested for the validation of a finite element simulation.
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Franz Rumstadt and Dominik K. Kanbach
Chief Executive Officer (CEO) activism, i.e. executives, publicly weighing in on sociopolitical debates, is an area of increasing interest in academia and business. This young…
Abstract
Purpose
Chief Executive Officer (CEO) activism, i.e. executives, publicly weighing in on sociopolitical debates, is an area of increasing interest in academia and business. This young research field provides valuable insights, but it still represents a scattered discussion in a variety of disciplines. Thus, this paper aims to present a guiding framework, integrate current knowledge, aggregate published findings and outline avenues for future research.
Design/methodology/approach
The authors conducted a systematic literature review building on a sample of 36 publications. In consequence, 1,146 lead themes were derived and studied in an in-depth qualitative analysis by deploying a pattern-inducing method.
Findings
Research on CEO activism can be placed on a time-oriented logic, giving insights into the realisation of activism, stakeholder reactions, moderators and perception effects. These four aggregate dimensions can be explained by 15 second-order themes and 48 more detailed first-order themes.
Practical implications
Considering the risks and benefits of CEO activism, top executives and communication professionals should be aware of its implications. This paper provides an integrated view of the different mechanisms and potential effects of CEO activism. Thereby, it proposes communicative planning from activism’s realisation to its perceptual results.
Originality/value
The study provides a holistic view of CEO activism as a starting point for further discussion. To the latest of the authors’ knowledge, this work is the first integrated conceptualisation of the discussion of CEO activism. The proposed avenues for future research stem from a detailed examination of published knowledge.
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Stephen W. Smith, Gregory G. Taylor, Tia Barnes and Ann P. Daunic
Students with emotional and behavioral disorders (EBD) who display aggression necessitate effective interventions for reducing highly disruptive behavior, while keeping learning…
Abstract
Students with emotional and behavioral disorders (EBD) who display aggression necessitate effective interventions for reducing highly disruptive behavior, while keeping learning environments safe and secure for all students and staff. In this chapter, we describe the merits of cognitive-behavioral interventions (CBIs) in school settings to reduce student aggression and other destructive and maladaptive behavior and to promote student success and lifelong learning. To that end, we first explore three theoretical frameworks for aggression: the general aggression model, social learning theory, and social information processing, each of which examines the role of environment, cognition, and behavior as foundational to the occurrence of aggression. Synthesizing these theories assists in the development and implementation of CBIs in classroom settings. We then describe the CBI approach to teaching students cognitive and behavioral strategies to reduce problematic behaviors and increase the use of more pro-social alternatives, and ultimately generalize learned skills to a variety of social situations. A brief history of CBIs is explored, followed by a discussion of several meta-analyses establishing CBI's effectiveness in decreasing aggression across a variety of venues and populations. We then focus on social problem solving as an example of a cognitive-behavioral approach and describe the Tools for Getting Along curriculum as an example of a school-based CBI. At the end of the chapter, we explain some limitations of CBIs in schools and delineate future research needs.
Examines the determinants of International Joint Venture marketing performance in Thailand. Uses the results from a survey of 1047 Thai‐foreign IJVs in Thailand from firms that…
Abstract
Examines the determinants of International Joint Venture marketing performance in Thailand. Uses the results from a survey of 1047 Thai‐foreign IJVs in Thailand from firms that were mainly engaged in agriculture, metal working, electrical and chemical industries. Applies exploratory factor analysis and discriminant analysis to identify these critical determinants as market characteristics, conflict, commitment, marketing orientation and organisational control.
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This chapter examines whether the view of the jury in cases involving forensic evidence can be changed from that of “naïve automatons” to that of “sophisticated decision makers”;…
Abstract
This chapter examines whether the view of the jury in cases involving forensic evidence can be changed from that of “naïve automatons” to that of “sophisticated decision makers”; whether the defense and prosecution must provide the jurors with information to help them develop a schema upon which to evaluate the forensic evidence; and whether to remove decision making from the expert forensic scientist and return it to the jury. The chapter uses secondary sources of information collected from criminal cases, the current federal law, as interpreted by the U.S. Supreme Court dealing with expert testimony, studies of how to enable juries confronted with forensic evidence, as well as a framework of learning theory and persuasion games. I argue that expert forensic scientists make errors. Juries are capable of making decisions based on complex forensic evidence if provided the knowledge within which to develop schema to evaluate that evidence. Competition between the defense and prosecution in presenting interpretations of scientifically valid evidence, as well as providing schema to enable the jury to evaluate the information, provides juries with the ability to arrive at a full information decision. Expert nullification of jury decision making should be halted and decision making returned to the jury. The value of this chapter is to integrate learning theory from cognitive psychology with one-shot and extended persuasion games to evaluate the roles of the jury and the expert forensic scientists within the criminal justice system.
Chaitanya Arun Sathe and Chetan Panse
This study aims to examine the enablers of productivity of enterprise-level Agile development process using modified total interpretative structural modeling (TISM). The two main…
Abstract
Purpose
This study aims to examine the enablers of productivity of enterprise-level Agile development process using modified total interpretative structural modeling (TISM). The two main objectives of the current study are to determine the variables influencing enterprise-level agile development productivity and to develop modified TISM for the corresponding components.
Design/methodology/approach
To identify enablers of the productivity of enterprise-level agile software development process a literature review and opinions of domain experts were collected. A hierarchical relationship among variables that show direct and indirect influence is created using the modified TISM (M-TISM) technique with Cross Impact Matrix-Multiplication Applied to Classification analysis. This study examined and analyzed the relationships between the determinants within the enterprise using a M-TISM technique.
Findings
With the literature review, the study could identify ten enabling factors of the productivity of Agile development process at the enterprise level. Results depict that program increment (PI) planning and scalable backlog management, continuous integration and continuous delivery (CI/CD), agile release trains (ART), agile work culture, delivery excellence, lean and DevOps practices, value stream mapping (VMS), team skills and expertise, collaborative culture, agile coaching, customer engagement have an impact on the productivity of enterprise-level Agile development process. The results show that team collaboration, agile ways of working and customer engagement have a greater impact on productivity improvement for enterprise-level Agile development process.
Research limitations/implications
The developed model is useful for organizations employing scaled Agile development processes in software development. This study provides a recommended listing of key enablers, that may enable productivity improvements in the Agile development process at the enterprise level. Strategists should focus on team collaboration and Agile project management. This study offers a modified TISM model to academicians to help them understand the effects of numerous variables on maintaining the productivity of an enterprise-level Agile. The identified characteristics and their hierarchical structure can help project managers during the execution of Agile projects at the enterprise level, more effectively, increasing their success and productivity.
Originality/value
The study addresses the gap in the literature by interpretative relationships between the identified enabling factors. The model validation is carried out by a panel of nine experts from several information technology organizations deploying Agile software development at the enterprise level. This unique method broadens the knowledge base in Agile software development at scale and provides project managers and practitioners with a practical foundation.
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Katarzyna Piwowar-Sulej, Mariusz Sołtysik and Justyna Łucja Różycka-Antkowiak
Rapid changes in the business environment and the accelerating dynamics and increasing complexity shaping the functioning of organizations have given rise to modern concepts of…
Abstract
Purpose
Rapid changes in the business environment and the accelerating dynamics and increasing complexity shaping the functioning of organizations have given rise to modern concepts of people management. The Management 3.0 (M3.0) concept was developed based on agile project management concept; however, it can be implemented not only in projects, but also in the entire organization. It consists of six pillars such as: energizing people, empowering teams, aligning constraints, developing competencies, growing structure, and improving everything. The paper aims to present the relationships between the level of implementation of the above-presented pillars and such variables as the scope of use of agile project management methodologies, and project managers' (PMs) as well as HR practitioners' knowledge in this area.
Design/methodology/approach
Members of PMI and IPMA representing 34 companies located in Poland took part in the research which was based on a CAWI method.
Findings
Research shows that the level of M3.0 implementation – in terms of its six pillars – is internally consistent but mostly on a “defined” level. No correlation was observed between the implementation of M3.0 and the frequency with which agile project management methodology is applied. On the other hand, there is a strong correlation between the level of PMs' knowledge and the implementation of some of the M3.0 pillars. HR specialists' knowledge in the field of M3.0 is not associated with organizational advances in the implementation of M3.0.
Originality/value
As the first research project in the area of M3.0, this study proposes practical implications as well as topics which require further empirical exploration.
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We have received a communication from Mr. A. H. Mitchell Muter, F.I.C., Public Analyst for Lambeth, with reference to the contamination of cheese as the result of it being wrapped…
Abstract
We have received a communication from Mr. A. H. Mitchell Muter, F.I.C., Public Analyst for Lambeth, with reference to the contamination of cheese as the result of it being wrapped in tinfoil.—Mr. Muter observes that the following facts are those upon which he based his remarks, re the potential danger to health arising from contamination by tin in cheese wrapped in this metal, contained in his report for the fourth quarter of 1929 to one of the Local Authorities for which he acts :—On 4th November, 1929, a Food Inspector to the Authority in question submitted an informal sample of wrapped cheese as the result of a complaint having been received from a ratepayer to the effect that he had been taken ill after partaking of it.—Mr. Muter's analysis showed it to contain 5·68 grains of tin per lb., and he therefore reported that he was of opinion that the ratepayer was fully justified in bringing the matter to the notice of the Inspector.—On 15th November a formal sample of wrapped cheese was submitted, which he found contained 6·89 grs. tin per lb., and he issued a report to this effect. As the result of this report he received on the 25th November five informal samples of various brands, all of which were found to contain tin varying from 0·28 to 6·34 grs. per lb., and a further three informal samples received on the 3rd December contained tin in quantities from 1·37 to 11·03 grs. per lb. On the 12th December a formal sample was submitted which contained as much as 14·8 grs. tin per lb.