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Article
Publication date: 1 December 2002

Ruth M.W. Yeung and Wallace M.S. Yee

Consumer risk perception plays an important role during periods of food safety concern because it shapes the behaviour of consumers. Multi‐dimensional analysis helps to provide a…

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Abstract

Consumer risk perception plays an important role during periods of food safety concern because it shapes the behaviour of consumers. Multi‐dimensional analysis helps to provide a thorough understanding of consumer‐perceived risk. A survey of 172 respondents was carried out to investigate the importance of individual loss components and the differences between sociodemographic characteristics regarding microbiological risk in chicken meat. The results suggest that health loss is the most important component followed by psychological, financial, time and taste losses. All these loss components were found to be significantly different between degree and non‐degree holders, while long‐term health and social losses were different within gender and age groups respectively. The findings in the study of microbiological risk in chicken meat are likely to be applicable to other food safety related risks.

Details

Nutrition & Food Science, vol. 32 no. 6
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 5 January 2015

Asma Masmoudi and Ahmed Masmoudi

The purpose of this paper is to compare the study between two topologies of fractional-slot permanent-magnet machines such that: double-layer topology and single-layer one. The…

Abstract

Purpose

The purpose of this paper is to compare the study between two topologies of fractional-slot permanent-magnet machines such that: double-layer topology and single-layer one. The comparison considers the assessment of the iron loss in the laminated cores of the magnetic circuit as well as in the permanent magnets (PMs) for constant torque and flux weakening ranges.

Design/methodology/approach

The investigation of the hysteresis and eddy-current loss has been carried out using 2D transient FEA models.

Findings

It has been found that the stator iron losses are almost the same for both topologies. Whereas, the single-layer topology is penalized by higher iron loss especially the eddy-current ones taking place in the PMs. This is due to their denser harmonic content of the armature air gap MMF spatial repartition.

Originality/value

The analysis of the iron loss maps in different parts of each machine including stator and rotor laminations as well as the PMs, in one hand, and the investigation of their variation with respect to the speed, in the other hand, represent the major contribution of this work.

Details

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, vol. 34 no. 1
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 6 July 2015

Dominic Peltier-Rivest and Nicole Lanoue

The purpose of this paper is to analyze the effect of various internal controls (i.e. hotlines, regular ethics (fraud) training, surprise audits, internal and external audits and…

1070

Abstract

Purpose

The purpose of this paper is to analyze the effect of various internal controls (i.e. hotlines, regular ethics (fraud) training, surprise audits, internal and external audits and background checks) on reducing occupational fraud losses by victim organizations.

Design/methodology/approach

The paper, based on data from an occupational fraud report co-authored by the Association of Certified Fraud Examiners (ACFE) and Peltier-Rivest (2007), uses a multivariate regression analysis to analyze the effect of various internal controls on preventing fraud losses.

Findings

The authors’ analyses demonstrate that hotlines, regular ethics (fraud) training, surprise audits and internal audits all decrease fraud losses when used separately. However, hotlines and surprise audits are the only statistically significant controls when controlling for the potential correlation among all internal controls. Hotlines are associated with a reduction of 54 per cent in median fraud losses, while surprise audits cut median losses by 69 per cent.

Research limitations/implications

This study contributes to academia and the anti-fraud profession by assessing the statistical effect of six internal controls on preventing fraud losses, while controlling for the potential correlation among these controls.

Practical implications

This study discusses the relative benefits (loss savings) of various internal controls to organizations, governments, managers and anti-fraud professionals. This information may help determine investment priorities in the context of scarce resources.

Originality/value

This paper is based on proprietary data owned by the ACFE and is the first to analyze the statistical significance of various internal controls on the reduction of fraud losses in Canada.

Details

Journal of Financial Crime, vol. 22 no. 3
Type: Research Article
ISSN: 1359-0790

Keywords

Article
Publication date: 1 January 2012

J.T. Chen and Z.Q. Zhu

The purpose of this paper is to compare the performance of conventional, novel E‐ and C‐core switched‐flux permanent magnet (SFPM) machines having different combinations of stator…

Abstract

Purpose

The purpose of this paper is to compare the performance of conventional, novel E‐ and C‐core switched‐flux permanent magnet (SFPM) machines having different combinations of stator and rotor pole numbers, with particular reference to the conductor and magnet eddy current loss and iron loss.

Design/methodology/approach

The electromagnetic performance of the analysed machines is compared using the finite element (FE) analysis.

Findings

Both iron and conductor eddy current losses increase with the rotor pole number, while the 11‐ and 13‐rotor pole machine always exhibit lower magnet eddy current loss than those of the 10‐ and 14‐rotor pole machines, respectively. The E‐ and C‐core machines use half the number and volume of magnets and also exhibit higher efficiency than those of the conventional SFPM machine.

Originality/value

Investigation of the influence of stator and rotor pole combinations on the performances of conventional, novel E‐ and C‐core SFPM machines, include losses and efficiency.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 31 no. 1
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 16 August 2019

Lichen Gu, Rui Xu and Nan Wang

The purpose of this paper is to identify the energy losses factors during the hydro-mechanical conversion process at high pressure via a novel reduced order dynamic model.

Abstract

Purpose

The purpose of this paper is to identify the energy losses factors during the hydro-mechanical conversion process at high pressure via a novel reduced order dynamic model.

Design/methodology/approach

A novel reduced order dynamic model of the axial piston motor was proposed, which provides an explicit insight to the compression flow losses and the Coulomb friction losses. A fully coupled dynamic model of the piston motor was obtained based on the array bond graph method. And then, a reduced order model was obtained by the composition analysis of flow and torque of the axial piston motor. After that, the energy losses estimation model was presented to predict the energy loss of the piston motor under a wide range of working conditions. The model was verified by comparing the experimental and simulation results.

Findings

The simulation result indicates that the flow loss caused by oil compression accounts for 59 per cent of the total flow loss, and the Coulomb friction torque accounts for 40 per cent of the total torque loss under a specific working condition. The compression flow loss and Coulomb friction torque are the major factors that lead to the aggravation of energy loss under extreme working conditions of the piston motor.

Originality/value

At high-pressure condition, the compression flow losses due to fluid compressibility cannot be neglected, and the hydro-mechanical losses in varies friction pairs should involve Coulomb friction losses. Flow and torque loss analytical expression in the model involve the design and control parameters of the piston equipment, which can realize the parameter optimization of the piston equipment for the purpose of energy-saving.

Details

Industrial Lubrication and Tribology, vol. 72 no. 5
Type: Research Article
ISSN: 0036-8792

Keywords

Article
Publication date: 1 November 2001

Ki‐Young Jeong and Don T. Phillips

The accurate estimation of equipment utilization is very important in capital‐intensive industry since the identification and analysis of hidden time losses are initiated from…

9479

Abstract

The accurate estimation of equipment utilization is very important in capital‐intensive industry since the identification and analysis of hidden time losses are initiated from these estimates. In this paper, a new loss classification scheme for computing the overall equipment effectiveness (OEE) is presented for capital‐intensive industry. Based on the presented loss classification scheme, a new interpretation for OEE including state analysis, relative loss analysis, lost unit analysis and product unit analysis is attempted. Presents a methodology for constructing a data collection system and developing the total productivity improvement visibility system to implement the proposed OEE and related analyses.

Details

International Journal of Operations & Production Management, vol. 21 no. 11
Type: Research Article
ISSN: 0144-3577

Keywords

Book part
Publication date: 3 June 2008

Susan K. Laury and Charles A. Holt

This paper reports a new experimental test of the notion that behavior switches from risk averse to risk seeking when gains are “reflected” into the loss domain. We conduct a…

Abstract

This paper reports a new experimental test of the notion that behavior switches from risk averse to risk seeking when gains are “reflected” into the loss domain. We conduct a sequence of experiments that allows us to directly compare choices under reflected gains and losses where real and hypothetical payoffs range from several dollars to over $100. Lotteries with positive payoffs are transformed into lotteries over losses by multiplying all payoffs by –1, that is, by reflecting payoffs around zero. When we use hypothetical payments, more than half of the subjects who are risk averse for gains turn out to be risk seeking for losses. This reflection effect is diminished considerably with cash payoffs, where the modal choice pattern is to exhibit risk aversion for both gains and losses. However, we do observe a significant difference in risk attitudes between losses (where most subjects are approximately risk neutral) and gains (where most subjects are risk averse). Reflection rates are further reduced when payoffs are scaled up by a factor of 15 (for both real and hypothetical payoffs).

Details

Risk Aversion in Experiments
Type: Book
ISBN: 978-1-84950-547-5

Abstract

Details

Operational Risk Management in Banks and Idiosyncratic Loss Theory: A Leadership Perspective
Type: Book
ISBN: 978-1-80455-223-0

Book part
Publication date: 9 July 2010

Richard Swedberg

On September 15, 2008, Lehman Brothers filed for bankruptcy and nearly caused a meltdown of the financial system. This article looks at the situation before Lehman went bankrupt…

Abstract

On September 15, 2008, Lehman Brothers filed for bankruptcy and nearly caused a meltdown of the financial system. This article looks at the situation before Lehman went bankrupt and how this event came to trigger a financial panic during the fall of 2008 and early 2009. Two key ideas inform the analysis. The first is that what triggers financial panics are typically hidden losses. The second is that confidence plays a key role in financial panics and that confidence can be conceptualized as a belief that action can be based on proxy signs, rather than on direct information about the situation itself.

Details

Markets on Trial: The Economic Sociology of the U.S. Financial Crisis: Part A
Type: Book
ISBN: 978-0-85724-205-1

Book part
Publication date: 7 January 2019

Christy M. Borders, Molly Herman, Karla Giese and Anna Tess

Hearing loss impacts language and communication, a building block for relationships and society. Most teachers and professionals rarely have a young child with hearing loss in…

Abstract

Hearing loss impacts language and communication, a building block for relationships and society. Most teachers and professionals rarely have a young child with hearing loss in their classroom. The “unknown” can be a source of stress for the professionals and the families alike. Understanding the characteristics of this population of students, the diagnostic process, the possible early intervention supports, and practices to use with young children with hearing loss may help teachers and professionals approach students and families with more confidence. This chapter will outline each of the aforementioned with an emphasis on understanding parental perspective.

Details

Special Education for Young Learners with Disabilities
Type: Book
ISBN: 978-1-78756-041-3

Keywords

21 – 30 of over 131000