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Article
Publication date: 1 March 2023

Mohamed Amine Hebri, Abderrahmane Rebhaoui, Gregory Bauw, Jean-Philippe Lecointe, Stéphane Duchesne, Gianluca Zito, Abdelli Abdenour, Victor Mediavilla Santos, Vincent Mallard and Adrien Maier

The purpose of this paper is to exploit the optimal performances of each magnetic material in terms of low iron losses and high saturation flux density to improve the efficiency…

103

Abstract

Purpose

The purpose of this paper is to exploit the optimal performances of each magnetic material in terms of low iron losses and high saturation flux density to improve the efficiency and the power density of the selected motor.

Design/methodology/approach

This paper presents a study to improve the power density and efficiency of e-motors for electric traction applications with high operating speed. The studied machine is a yokeless-stator axial flux permanent magnet synchronous motor with a dual rotor. The methodology consists in using different magnetic materials for an optimal design of the stator and rotor magnetic circuits to improve the motor performance. The candidate magnetic materials, adapted to the constraints of e-mobility, are made of thin laminations of Si-Fe nonoriented grain electrical steel, Si-Fe grain-oriented electrical steel (GOES) and iron-cobalt Permendur electrical steel (Co-Fe).

Findings

The mixed GOES-Co-Fe structure allows to reach 10 kW/kg in rated power density and a high efficiency in city driving conditions. This structure allows to make the powertrain less energy consuming in the battery electric vehicles and to reduce CO2 emissions in hybrid electric vehicles.

Originality/value

The originality of this study lies in the improvement of both power density and efficiency of the electric motor in automotive application by using different magnetic materials through a multiobjective optimization.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 42 no. 4
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 1 April 1976

Roberta A. Scull

This compilation of over 500 United States Government bibliographies is the second annual supplement to BIBLIOGRAPHY OF UNITED STATES GOVERNMENT BIBLIOGRAPHIES 1968–1973 (Pierian…

140

Abstract

This compilation of over 500 United States Government bibliographies is the second annual supplement to BIBLIOGRAPHY OF UNITED STATES GOVERNMENT BIBLIOGRAPHIES 1968–1973 (Pierian Press). Due to the Government Printing Office backlog during 1974, many 1973 and 1974 titles are included in this 1975 Supplement, which should have appeared earlier.

Details

Reference Services Review, vol. 4 no. 4
Type: Research Article
ISSN: 0090-7324

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Book part
Publication date: 30 May 2022

Jagriti Upadhyaya

The chapter tries to understand how nuclear tests and the radiation fallouts in their aftermath can lead to cancer. It seeks to explore how our diseased ecological systems have…

Abstract

Purpose of the Research Paper

The chapter tries to understand how nuclear tests and the radiation fallouts in their aftermath can lead to cancer. It seeks to explore how our diseased ecological systems have resulted in silencing the birdsong and the spreading of cancer in the Anthropocene with reference to Terry Tempest Williams' (An environmentalist and Utah naturalist) two memoirs – “‘Refuge: An Unnatural History of Family and Place” and “When Women Were Birds: Fifty-Four Variations on Voice.” It would also try to factor in connections between climate change, pandemics like the COVID-19, and the onslaught of other terminal illnesses like cancer, all a result of mankind's anthropocentric hubris and domination of nature.

Methodology/Approach

Mine would be a qualitative approach wherein I will refer to the original two texts mentioned for primary material and other sources for secondary references and analyze them from an ecofeminist perspective.

Findings and Conclusion

We need to establish the health of the Environment through reduced usage of nuclear weapons and by developing a language and an environmental praxis that doesn't separate the subject and the object and only then we can usher in biological egalitarianism, and restore the song of the whistling thrush again. We also need to revere our Mother Earth and see to it that she maintains her ecological balance through homeostasis.

Details

Systemic Inequality, Sustainability and COVID-19
Type: Book
ISBN: 978-1-80117-733-7

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Article
Publication date: 1 October 2006

Julie Ayling and Peter Grabosky

This article aims to alert readers to the procurement and acquisition activities of police agencies, to the risks that these entail, and to mechanisms for their effective…

3975

Abstract

Purpose

This article aims to alert readers to the procurement and acquisition activities of police agencies, to the risks that these entail, and to mechanisms for their effective management.

Design/methodology/approach

The article explores the ways in which acquisition by police is conducted and regulated. It examines these relationships between police and the private sector from the perspective of their benefits, such as costs and efficiency gains, and the risks they entail, including overdependency, corruption and lack of accountability.

Findings

Shopping by the public police is on the increase. Through procurement and outsourcing, police harness resources needed to cope with increasing demands on their services. Increased police activity in the marketplace, driven by changing ideological, economic and pragmatic considerations, represents a fundamental structural shift in policing. The article identifies appropriate institutional and procedural safeguards, and raises questions about the implications of commercial relationships for the future of public policing.

Originality/value

This article makes a contribution by flagging the increased reliance of police on externally provided goods and services, and by suggesting ways in which the procurement process can be managed to ensure both accountability and value for money.

Details

Policing: An International Journal of Police Strategies & Management, vol. 29 no. 4
Type: Research Article
ISSN: 1363-951X

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Article
Publication date: 1 September 1936

MID‐OCTOBER sees the activities of the library world in full swing. Meetings, committee discussions, schools at work, students busy with December and May examinations in view, and…

44

Abstract

MID‐OCTOBER sees the activities of the library world in full swing. Meetings, committee discussions, schools at work, students busy with December and May examinations in view, and a host of occupations for the library worker. This year—for in a sense the library year begins in October—will be a busy one. For the Library Association Council there will be the onerous business of preparing a report on State Control; for libraries there will be the effort to retain readers in a land of increasing employment and reduced leisure; and for the students, as we have remarked in earlier issues, preparations for the new syllabus of examinations which becomes operative in 1938. It is a good month, too, to consider some phases of library work with children, “which,” to quote the L.A. Resolutions of 1917, “ought to be the basis of all other library work.”

Details

New Library World, vol. 39 no. 3
Type: Research Article
ISSN: 0307-4803

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Article
Publication date: 1 June 1971

At each New Year we stand at the threshold of fresh scenes and hopes, of opportunities and pastures new. It is the time for casting off shackles and burdens that have weighed us…

129

Abstract

At each New Year we stand at the threshold of fresh scenes and hopes, of opportunities and pastures new. It is the time for casting off shackles and burdens that have weighed us down in the old year; almost a new chapter of life. We scan the prevailing scene for signs that will chart the year's unrolling and beyond, and hope profoundly for a smooth passage. The present is largely the product of the past, but of the future, who knows? Man therefore forever seems to be entering upon something new—a change, a challenge, events of great portent. This, of course, is what life is all about. Trends usually precede events, often by a decade or more, yet it is a paradox that so many are taken by surprise when they occur. Trends there have been and well marked; signs, too, for the discerning. In fields particular, they portend overall progress; in general, not a few bode ill.

Details

British Food Journal, vol. 73 no. 6
Type: Research Article
ISSN: 0007-070X

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Article
Publication date: 10 November 2022

Ingrid Jeacle

This paper examines the calculative practices used by the Slave Compensation Commission to value a slave for the purposes of compensating slave owners on the abolishment of…

518

Abstract

Purpose

This paper examines the calculative practices used by the Slave Compensation Commission to value a slave for the purposes of compensating slave owners on the abolishment of slavery across the British colonies in 1833. It contributes to accounting research in the field of valuation, particularly to understanding the practices of valuing human life.

Design/methodology/approach

The methodology is primarily archival and draws on the records of the Slave Compensation Commission held at the British National Archives (Kew).

Findings

The paper makes two contributions to the literature. Firstly, it contributes to the valuation studies literature by suggesting the significance of understanding the practice of valuation as a product of the dynamics of strategic action fields (Fligstein and McAdam, 2012). Secondly, it contributes to the theory of strategic action fields by revealing the role of calculative technologies in supporting the organizational apparatus of valuation within the Slave Compensation Commission, and therefore suggests the powerful role of accounting in stabilizing a strategic action field.

Originality/value

The paper provides novel insights into the monetary commensuration of life and the role of calculative technologies in that valuation process.

Details

Accounting, Auditing & Accountability Journal, vol. 36 no. 3
Type: Research Article
ISSN: 0951-3574

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