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1 – 10 of 15Xiao Xiao, Andreas Christian Thul, Lars Eric Müller and Kay Hameyer
Magnetic hysteresis holds significant technical and physical importance in the design of electromagnetic components. Despite extensive research in this area, modeling magnetic…
Abstract
Purpose
Magnetic hysteresis holds significant technical and physical importance in the design of electromagnetic components. Despite extensive research in this area, modeling magnetic hysteresis remains a challenging task that is yet to be fully resolved. The purpose of this paper is to study vector hysteresis play models for anisotropic ferromagnetic materials in a physical, thermodynamical approach.
Design/methodology/approach
In this work, hysteresis play models are implemented to interpret magnetic properties, drawing upon classical rate-independent plasticity principles derived from continuum mechanics theory. By conducting qualitative and quantitative verification and validation, various aspects of ferromagnetic vector hysteresis were thoroughly examined. By directly incorporating the hysteresis play models into the primal formulations using fixed point method, the proposed model is validated with measurements in a finite element (FE) environments.
Findings
The proposed vector hysteresis play model is verified with fundamental properties of hysteresis effects. Numerical analysis is performed in an FE environment. Measured data from a rotational single sheet tester (RSST) are validated to the simulated results.
Originality/value
The results of this work demonstrates that the essential properties of the hysteresis effects by electrical steel sheets can be represented by the proposed vector hysteresis play models. By incorporation of hysteresis play models into the weak formulations of the magnetostatic problem in the h-based magnetic scalar potential form, magnetic properties of electrical steel sheets can be locally analyzed and represented.
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Valerie Chambers, Eric N. Johnson, Gary M. Fleischman and Kenneth Zheng
Management discretion in the decision to reduce payroll costs is an important but under-researched issue in management accounting. The authors leverage the experimental…
Abstract
Management discretion in the decision to reduce payroll costs is an important but under-researched issue in management accounting. The authors leverage the experimental environment to test the role of organizational culture (close vs. distant) and managerial communion (concern for others) along with their interaction with sales decline persistence (one vs. two periods) on planned layoff decisions. The authors find that communal managers are hesitant to downsize employees and that a close organizational culture interacts with one period sales declines to reduce layoffs although the influence of culture is reduced with persistent sales declines. The authors also examine the influence of culture and communion on managers’ preference for pay cuts as an alternative to layoffs. The authors find that a close culture and higher communion are associated with decisions to choose pay cuts over layoffs; however, these costs interact such that managers low in communion in a distant culture express a higher preference for layoffs. These findings illustrate the combined influence of economic, organizational, and dispositional factors on manager decisions about the extent and form of labor cost reductions due to sales declines.
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This chapter highlights the close relationship between the wellbeing of faculty and students in higher education and the quality of teaching and learning. Improving teaching and…
Abstract
This chapter highlights the close relationship between the wellbeing of faculty and students in higher education and the quality of teaching and learning. Improving teaching and learning is crucial for promoting the wellbeing of both faculty and students. As such, instructional leadership, an approach that focuses on enhancing teaching and learning, should be a priority for higher education leaders. However, the involvement of higher education leaders in instructional leadership is often limited. Therefore, a customized version of instructional leadership that considers the unique priorities, characteristics, and norms of this specific educational context should be implemented in higher education to prioritize the improvement of teaching and learning and, consequently, enhance the wellbeing of faculty and students.
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The author reflects on her journey to becoming a Black female full professor at a Historically Black College and University (HBCU). Additionally, she summarizes the research on…
Abstract
The author reflects on her journey to becoming a Black female full professor at a Historically Black College and University (HBCU). Additionally, she summarizes the research on the successes and challenges for women professors, Black professors more broadly, and Black female professors, more specifically, to contribute to a deeper understanding of the positionality and stance of Black women professors. Although HBCUs are higher education institutions where Black female professors achieve tenure in the greatest percentages, the author highlights the intersection of race and gender and the unfortunate gendered power dynamics in these spaces that frequently place Black female faculty at a disadvantage. The chapter concludes with strategies for Black women professors to survive and thrive in academia, in general, and at HBCUs, more specifically.
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Jordan Bell, Lorenz S. Neuwirth, Keisha Goode, Justin Coles, Esther Ohito and Willie Morris
Robert P. Robinson and Jordan Bell
The purpose of this study is to analyze the first major federal education policy, the Elementary and Secondary Education Act of 1965, and the most recent federal policy, the Every…
Abstract
Purpose
The purpose of this study is to analyze the first major federal education policy, the Elementary and Secondary Education Act of 1965, and the most recent federal policy, the Every Student Succeeds Act of 2015, through a Black critical theory (BlackCrit) lens to understand better how these educational policies have served as antiblack projects. Furthermore, this study locates examples of educational Freedom Dreams in the past and present to imagine new possibilities in Black education.
Design/methodology/approach
By analyzing education policy documents and history through BlackCrit methods, the authors expose how education policy is inherently an antiblack project. Freedom Dreams catalyze possibilities for future education.
Findings
The data confirms that while these policies purport equity and accountability in education, they, in practice, exacerbate antiblackness through inequitably mandated standardized testing, distributed funding and policed schooling.
Originality/value
This paper applies BlackCrit analysis of education policy to reimagine Black educational possibilities.
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Using the Canadian Census of 2016, the present study examines the Black and White gap in compensating differentials for their commute to work.
Abstract
Purpose
Using the Canadian Census of 2016, the present study examines the Black and White gap in compensating differentials for their commute to work.
Design/methodology/approach
The data are from the Canadian Census of 2016. The standard Mincerian wage regression, augmented by commute-related variables and their confounders, is estimated by OLS. The estimations use sample weights and heteroscedasticity robust standard errors.
Findings
In the standard Mincerian wage regressions, Black men are found to earn non-negligibly less than White men. No such gap is found among women. When the Mincerian wage equation is augmented by commute duration and its confounders, commute duration is revealed to positively predict wages of White men and negatively associate with wages of Black men. At the same time, in the specifications including commute duration and its confounders, the coefficient for the dummy variable identifying Black men is positive with a non-negligible size. The latter pattern indicates wage discrepancies among Black men by their commute duration. Again, no difference is found between Black and White women in these estimations.
Research limitations/implications
The main caveat is that due to data limitations, causal estimates could not be produced.
Practical implications
For the Canadian working men, the uncovered patterns indicate both between and within race gaps in the impact of commuting on wages. Particularly, Black men seem to commute longer towards relatively lower paying jobs, while the opposite holds for their White counterparts. However, Black men who reside close to their work earn substantially more than both otherwise identical White men and Black men who live far away from their jobs. The implications for research and policy are discussed.
Originality/value
This is the first paper focused on commute compensating differentials by race using Canadian data.
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Ehsan Tashakori and Yaser Sobhanifard
This study aims to comprehensively analyze the intersection of technology management and innovation management amidst the fourth industrial revolution, uncovering evolving trends…
Abstract
Purpose
This study aims to comprehensively analyze the intersection of technology management and innovation management amidst the fourth industrial revolution, uncovering evolving trends and influential contributors.
Design/methodology/approach
Using the Bibliometrix R-package, this pioneering research conducts a bibliometric analysis to delve into innovation and technology management literature, quantifying scholarly output and identifying thematic breakthroughs.
Findings
The study reveals quantitative insights into the progression of innovation and technology management research, offering guidance on evolving trends, thematic breakthroughs and influential contributors.
Practical implications
The findings offer valuable insights for practitioners and managers, guiding them through emerging trends and recommending a dual focus on fundamental principles and emerging areas for strategic decision-making.
Social implications
By fostering active engagement with evolving trends, this research contributes to the ongoing technology and innovation management discourse, potentially leading to societal benefits and advancements.
Originality/value
This study pioneers an in-depth bibliometric analysis at the intersection of innovation and technology management, offering unique insights and quantitative assessments of scholarly output and thematic trends, thus adding significant value to the existing literature.
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