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1 – 10 of 102James Elgy and Paul David Ledger
Magnetic polarizability tensors (MPTs) provide an economical characterisation of conducting magnetic metallic objects and their spectral signature can aid in the solution of metal…
Abstract
Purpose
Magnetic polarizability tensors (MPTs) provide an economical characterisation of conducting magnetic metallic objects and their spectral signature can aid in the solution of metal detection inverse problems, such as scrap metal sorting, searching for unexploded ordnance in areas of former conflict and security screening at event venues and transport hubs. In this work, the authors aim to discuss methods for efficiently building large dictionaries for classification approaches.
Design/methodology/approach
Previous work has established explicit formulae for MPT coefficients, underpinned by a rigorous mathematical theory. To assist with the efficient computation of MPTs at differing parameters and objects of interest, this work applies new observations about the way the MPT coefficients can be computed. Furthermore, the authors discuss discretisation strategies for hp-finite elements on meshes of unstructured tetrahedra combined with prismatic boundary layer elements for resolving thin skin depths and using an adaptive proper orthogonal decomposition (POD) reduced-order modelling methodology to accelerate computations for varying parameters.
Findings
The success of the proposed methodologies is demonstrated using a series of examples. A significant reduction in computational effort is observed across all examples. The authors identify and recommend a simple discretisation strategy and improved accuracy is obtained using adaptive POD.
Originality/value
The authors present novel computations, timings and error certificates of MPT characterisations of realistic objects made of magnetic materials. A novel postprocessing implementation is introduced and an adaptive POD algorithm is demonstrated.
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In order to obtain speedy management information, management may either use the services of a computer bureau, or install their own computerised system. Our writer takes the view…
Abstract
In order to obtain speedy management information, management may either use the services of a computer bureau, or install their own computerised system. Our writer takes the view that one system — the Hoskyns Retail Trading System — meets the needs of a wider range of retailers.
VINE is produced at least four times a year with the object of providing up‐to‐date news of work being done in the automation of library housekeeping processes, principally in the…
Abstract
VINE is produced at least four times a year with the object of providing up‐to‐date news of work being done in the automation of library housekeeping processes, principally in the UK. It is edited and substantially written by the Information Officer for Library Automation based in Southampton University Library and supported by a grant from the British Library Research and Development Dept. Copyright for VINE articles rests with the British Library Board, but opinions expressed in VINE do not necessarily reflect the views and policies of the British Library. The subscription for 1982 for VINE is £20 for UK subscribers and £23 for overseas subscribers — the subscription year runs from January to December. The 1983 subscription will be £22 for UK and £25 for overseas — VINE is available in either paper copy or microfiche and all back issues are available on microfiche.
Dennis B. Desmond, David Lacey and Paul Salmon
The purpose of this paper is to present the findings from a literature review, which aimed to identify previous studies evaluating cryptolaundering from a systems thinking…
Abstract
Purpose
The purpose of this paper is to present the findings from a literature review, which aimed to identify previous studies evaluating cryptolaundering from a systems thinking perspective. The aim of this paper is to first confirm that cryptolaundering systems can indeed be defined as complex socio-technical systems and second to present the findings from a systematic review of the literature to determine the extent to which previous research has adopted a systems thinking perspective.
Design/methodology/approach
The study involved a SLR of studies published in the peer-reviewed literature between 2009 and 2018. Rasmussen’s risk management framework (Rasmussen, 1997) was used to evaluate the extent to which a systems thinking perspective had been adopted.
Findings
The cryptolaundering process is considered to be a complex socio-technical system. The review demonstrates that no previous studies have defined cryptolaundering as a complex socio-technical system or used systems thinking framework approach to evaluate how criminals, regulatory bodies or law enforcement entities understand processes and assess risk within cryptolaundering systems. It is argued that using such an approach to the cryptolaundering process would likely improve assessing criminal risk analyses of cryptolaundering and assist law enforcement and regulatory bodies with understanding risk management during the laundering of cryptocurrencies.
Originality/value
Future assessments of cryptolaundering using socio-technical system analytical processes may afford law enforcement and regulatory bodies the opportunity to improve intervention techniques and identify gaps in regulations and enforcement.
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It's been three years since my previous survey in RSR. Superb reference books in pop music have been appearing so frequently that I've been having trouble keeping up. Let's hope…
Abstract
It's been three years since my previous survey in RSR. Superb reference books in pop music have been appearing so frequently that I've been having trouble keeping up. Let's hope “next year's” survey will only be 12 months in the making and not 36.
The stand‐out works this year are a number of comprehensive general discographies. Before reviewing them in detail in Part Two, I would like to single out three of them here for…
Using the backdrop of an (apparently) extended visit to the West Indies, analogies with key concerns of internal audit are drawn. An unusual and refreshing way of exploring the…
Abstract
Using the backdrop of an (apparently) extended visit to the West Indies, analogies with key concerns of internal audit are drawn. An unusual and refreshing way of exploring the main themes ‐ a discussion between Bill and Jack on tour in the islands ‐ forms the debate. Explores the concepts of control, necessary procedures, fraud and corruption, supporting systems, creativity and chaos, and building a corporate control facility.
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Using the backdrop of an (apparently) extended visit to the West Indies, analogies with key concerns of internal audit are drawn. An unusual and refreshing way of exploring the…
Abstract
Using the backdrop of an (apparently) extended visit to the West Indies, analogies with key concerns of internal audit are drawn. An unusual and refreshing way of exploring the main themes ‐ a discussion between Bill and Jack on tour in the islands ‐ forms the debate. Explores the concepts of control, necessary procedures, fraud and corruption, supporting systems, creativity and chaos, and building a corporate control facility.
Details
Keywords
THOMAS Carlyle's personal crusade for the opening of a lending library in London and his enlisting for the support of that cause influential and wealthy patrons such as Lord…
Abstract
THOMAS Carlyle's personal crusade for the opening of a lending library in London and his enlisting for the support of that cause influential and wealthy patrons such as Lord Clarendon, Bulwer‐Lytton, Lord Lyttelton, Dean Milman, Lord Houghton, W. E. Gladstone, Sir G. Cornewall Lewis, Henry Hallam—amongst a host of other now forgotten early Victorian luminaries—is well documented. According to Robert Harrison's Preface to the 1888 fifth edition of the Catalogue of the London Library, it opened on 3 May 1841 “with a collection of about 3,000 volumes, which, by the following March, when the first Catalogue was published, had increased to 13,000” (p.viii). The Library was declared formally open on 24 May 1841 using a hired hall in Pall Mall. There were 500 members. In April 1845 the Library moved to its present location in St. James's Square.