Martin Christopher Mapley, Geoff Tansley, Jo P. Pauls, Shaun D. Gregory and Andrew Busch
Additive manufacturing (AM) techniques have been developed to rapidly produce custom designs from a multitude of materials. Bonded permanent magnets (PMs) have been produced via…
Abstract
Purpose
Additive manufacturing (AM) techniques have been developed to rapidly produce custom designs from a multitude of materials. Bonded permanent magnets (PMs) have been produced via several AM techniques to allow for rapid manufacture of complex geometries. These magnets, however, tend to suffer from lower residual induction than the industry standard of injection moulding primarily due to the lower packing density of the magnetic particles and secondly due to the feedstock consisting of neodymium-iron-boron (Nd-Fe-B) powder with isotropic magnetic properties. As there is no compaction during most AM processes, increasing the packing density is very difficult and therefore the purpose of this study was to increase the magnetic properties of the PMs without increasing the part density.
Design/methodology/approach
Accordingly, this research investigates the use of anisotropic NdFeB feedstock coupled with an in-situ alignment fixture into an AM process known as selective laser sintering (SLS) to increase the magnetic properties of AM magnets. A Helmholtz coil array was added to an SLS machine and used to expose each powder layer during part fabrication to a near-uniform magnetic field of 20.4 mT prior to consolidation by the laser.
Findings
Permeagraph measurements of the parts showed that the alignment field introduced residual induction anisotropy of up to 46.4 ± 2.2% when measured in directions parallel and perpendicular to the alignment field. X-ray diffraction measurements also demonstrated a convergence of the orientation of the crystals when the magnets were processed in the presence of the alignment field.
Originality/value
A novel active alignment fixture for SLS was introduced and was experimentally shown to induce anisotropy in bonded PMs. Thus demonstrating a new method for the enhancement in energy density of PMs produced via AM methods.
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This paper aims to trace the emergence, rise and eventual fall of Mojo-MDA. Established as a creative consultancy in 1975, Mojo embarked on an ambitious growth strategy that would…
Abstract
Purpose
This paper aims to trace the emergence, rise and eventual fall of Mojo-MDA. Established as a creative consultancy in 1975, Mojo embarked on an ambitious growth strategy that would see it emerge as Australia’s first multinational agency. By examining the agency’s trajectory over the 1970s and 1980s, this paper revisits the story of an Australian agency with boundless confidence to develop a more nuanced understanding of the dynamic role played by corporate culture in the agency's fortunes.
Design/methodology/approach
This study uses reports and features published in the Australian advertising trade press, along with other first-hand accounts, including oral history interviews and personal correspondence with former agency staff.
Findings
By identifying the forces and influences affecting Mojo-MDA’s outlook and operations, this paper demonstrates the important yet paradoxical role that corporate culture plays in both building and undermining an agency’s ambitions and the need for marketing historians to pay closer attention to it.
Originality/value
This examination of an agency’s inner machinations over an extended period presents a unique perspective of the ways that advertising agencies operate, as well as the forces that drive and impede them, at both national and global levels. The Mojo-MDA story also illustrates the need for marketing and business historians to pay close attention to corporate culture and the different ways that it affects marketing business and practices.
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In the last four years, since Volume I of this Bibliography first appeared, there has been an explosion of literature in all the main functional areas of business. This wealth of…
Abstract
In the last four years, since Volume I of this Bibliography first appeared, there has been an explosion of literature in all the main functional areas of business. This wealth of material poses problems for the researcher in management studies — and, of course, for the librarian: uncovering what has been written in any one area is not an easy task. This volume aims to help the librarian and the researcher overcome some of the immediate problems of identification of material. It is an annotated bibliography of management, drawing on the wide variety of literature produced by MCB University Press. Over the last four years, MCB University Press has produced an extensive range of books and serial publications covering most of the established and many of the developing areas of management. This volume, in conjunction with Volume I, provides a guide to all the material published so far.
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There are many definitions of profound and multiple learning disabilities. Most definitions include having a high degree of learning disability in conjunction with at least one…
Abstract
There are many definitions of profound and multiple learning disabilities. Most definitions include having a high degree of learning disability in conjunction with at least one other severe impairment, such as visual, auditory or physical impairments (Male, 1996; Ware, 1996; Lacey, 1998). Bunning (1997) adds that people with such disabilities are very reliant on others for support, including support in taking part in communicative events. Establishing reliable and consistent methods of communication may be exceptionally difficult (Florian et al, 2000). However, it is important to consider the individuality and extreme diversity of this population (Detheridge, 1997; Hogg, 1998), which includes variability in communication strengths and needs (Granlund & Olsson, 1999; McLean et al, 1996). Communication is often given little attention when services are planning ways of supporting individuals to participate, develop independence and make choices (McGill et al, 2000). While the individual's communication strengths and needs should remain central within any discussion, the significant others and the environment will also have an important influence. This article explores some of the communication issues experienced by people with profound and multiple learning disabilities and highlights the importance of the communication partnership within interventions.
Examines the tenth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects…
Abstract
Examines the tenth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects discussed include cotton fabric processing, asbestos substitutes, textile adjuncts to cardiovascular surgery, wet textile processes, hand evaluation, nanotechnology, thermoplastic composites, robotic ironing, protective clothing (agricultural and industrial), ecological aspects of fibre properties – to name but a few! There would appear to be no limit to the future potential for textile applications.
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Man has been seeking an ideal existence for a very long time. In this existence, justice, love, and peace are no longer words, but actual experiences. How ever, with the American…
Abstract
Man has been seeking an ideal existence for a very long time. In this existence, justice, love, and peace are no longer words, but actual experiences. How ever, with the American preemptive invasion and occupation of Afghanistan and Iraq and the subsequent prisoner abuse, such an existence seems to be farther and farther away from reality. The purpose of this work is to stop this dangerous trend by promoting justice, love, and peace through a change of the paradigm that is inconsistent with justice, love, and peace. The strong paradigm that created the strong nation like the U.S. and the strong man like George W. Bush have been the culprit, rather than the contributor, of the above three universal ideals. Thus, rather than justice, love, and peace, the strong paradigm resulted in in justice, hatred, and violence. In order to remove these three and related evils, what the world needs in the beginning of the third millenium is the weak paradigm. Through the acceptance of the latter paradigm, the golden mean or middle paradigm can be formulated, which is a synergy of the weak and the strong paradigm. In order to understand properly the meaning of these paradigms, however, some digression appears necessary.
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IN all cases, the estimation of airscrew‐engine performance must start with a clear specification of the primary condition for which the airscrew is to be designed. In the…
Abstract
IN all cases, the estimation of airscrew‐engine performance must start with a clear specification of the primary condition for which the airscrew is to be designed. In the majority of cases up to date this primary design condition has been that the airscrew is to absorb the maximum b.h.p. of the engine at maximum permissible r.p.m. at maximum boost height and maximum aircraft speed. (The aircraft speed is obviously an estimate only, but we may assume for the time being that it is reliable.) Under these conditions the airscrew efficiency is required to be the maximum possible.
Martin Stuebs and Li Sun
This chapter examines the association between corporate governance and environmental performance. The purpose of governance mechanisms is to build trust by ensuring that corporate…
Abstract
This chapter examines the association between corporate governance and environmental performance. The purpose of governance mechanisms is to build trust by ensuring that corporate responsibilities, including environmental responsibilities, are met. We obtain corporate governance data from the Investor Responsibility Research Center, Inc’s (IRRC’s) governance and director database and additional corporate governance and environmental performance data from Kinder, Lydenberg, and Domini’s (KLD’s) database. Our analyses document a significant positive association between corporate governance and environmental performance. Moreover, we find that corporate governance is positively related to environmental strengths, and negatively related to environmental concerns. Our findings contribute to and extend our understanding of the relationship between governance and performance and have important implications for policy makers, managers, investors, and others.
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Cathy Howlett, Jo-Anne Ferreira and Jessica Blomfield
This paper aims to argue that substantive changes are required in both curricula and pedagogical practice in higher education institutions to challenge dominant epistemologies and…
Abstract
Purpose
This paper aims to argue that substantive changes are required in both curricula and pedagogical practice in higher education institutions to challenge dominant epistemologies and discourses and to unsettle current ways of thinking about, and acting in relation to, the environment. Central to such a shift, it is argued, is the need for higher education curricula to be interdisciplinary and for pedagogical practices to work to build capacities in students for critical and reflective thinking.
Design/methodology/approach
In this paper, a case study of our reflections is offered on a subject designed to promote capacities in students for critical and reflective thinking via an interdisciplinary approach. The paper uses data from student reflective essays and student course evaluations to make an argument for the success of this approach.
Findings
Genuine transformative learning can occur within a constructivist informed pedagogical approach to teaching for sustainability.
Research limitations/implications
Research implications are that genuine transformation can occur in students’ thinking processes (which the paper argues is critical for effective education in sustainability) with appropriately designed courses in higher education.
Practical implications
More effective environmental actors and thinkers, who can critically engage with the complexity of environmental problems.
Social implications
Social implications include a more effective and socially just higher education for sustainability
Originality/value
The authors know of no other narrative that addresses attempts to educate for sustainability using this approach.