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Article
Publication date: 6 November 2017

Study on distance measuring and sorting method of general grey number

Shi-quan Jiang, Si-feng Liu, Zhi-geng Fang and Zhong-xia Liu

The purpose of this paper is to study distance measuring and sorting method of general grey number.

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Abstract

Purpose

The purpose of this paper is to study distance measuring and sorting method of general grey number.

Design/methodology/approach

First, the concept of generalised grey number based on grey system theory is given in this paper. Second, from the perspective of kernel and degree of greyness of general grey number, the method of measuring the distance of general grey number and its properties are given. At the same time, the concepts of the kernel expectation and the kernel variance of the general grey number are proposed.

Findings

Up to now, the method of measuring the distance and sorting of general grey number is established. Thus, the difficult problem for set up sorting of general grey number has been solved to a certain degree.

Research limitations/implications

The method exposed in this paper can be used to integrate information form a different source. Distance measuring and sorting method of general grey number could be extended to the case of grey algebraic equation, grey differential equation and grey matrix which includes general grey numbers, etc.

Originality/value

The concepts of the kernel expectation and the kernel variance of the general grey number are proposed for the first time in this paper; the novel sorting rules of general grey numbers were also constructed.

Details

Grey Systems: Theory and Application, vol. 7 no. 3
Type: Research Article
DOI: https://doi.org/10.1108/GS-07-2017-0019
ISSN: 2043-9377

Keywords

  • Distance measure
  • Expectation of kernel
  • General grey number
  • Variance of kernel

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Case study
Publication date: 4 April 2018

Employee Provident Fund Organization (EPFO): Towards consumer centricity

N. Ravichandran and N. Sundaravalli

The Employee Provident Fund Organization (EPFO), established by the Government of India is one of the World's Largest Social Security Organizations. The purpose of EPFO is…

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Abstract

The Employee Provident Fund Organization (EPFO), established by the Government of India is one of the World's Largest Social Security Organizations. The purpose of EPFO is to ensure social security for Industrial workers and their dependents. EPFO maintains more than 15 crore accounts of its members. Traditionally EPFO had been functioning as a legacy organization, administered and managed by Indian bureaucracy. Operational processes were riddled with over emphasis on rules and regulations, but were weak on transparency, accountability, effectiveness and efficiency. The 120 EPFO offices established all over the country operated in silos. Consequently, the very purpose of social security and welfare of the industrial employees suffered, while all other stake holders enjoyed significant controlling power. Recent interventions at EPFO were focused on process reengineering and ICT enablement to make EPFO more customer-centric. The case documents the transformation of EPFO from a bureaucratic, opaque organization to a customer centric, stakeholder friendly, transparent and accountable organization through IT enabled operations.

Details

Indian Institute of Management Ahmedabad, vol. no.
Type: Case Study
DOI: https://doi.org/10.1108/CASE.IIMA.2020.000168
ISSN: 2633-3260
Published by: Indian Institute of Management Ahmedabad

Keywords

  • Social Security
  • Employee Welfare
  • Process Reengineering
  • IT enablement
  • Organization turnaround
  • Customer Centricity

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Article
Publication date: 6 February 2007

The disavowal of the military

Ryan Bishop and John Phillips

This conceptual paper is offered in place of a systematic analysis of militarization in organizations and the wider world. It proceeds on the understanding that…

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Abstract

Purpose

This conceptual paper is offered in place of a systematic analysis of militarization in organizations and the wider world. It proceeds on the understanding that militarization implies deep historical tendencies that are not easy to simply avoid, especially where one wishes to observe or to analyse phenomena systematically.

Design/methodology/approach

This paper seeks out alternative means of engagement with references to the psychoanalytic theory of Sigmund Freud, the critical theory of Theodor Adorno and the poetry of W.H. Auden. The departure, however, is taken in response to a brief and questionable statement by Cardinal Ratzinger (now Pope Benedict XVI) about world history and the position of reason since the end of the Second World War.

Findings

Historical analysis, it is argued, is essential for any understanding of processes of militarization but not adequate on its own.

Originality/value

Militarization means, at least in the first instance, the adoption of military modes of organization and engagement in supposedly non‐military environments. But at a deeper level, which is nonetheless manifest in both a developing technology and an increasingly technological attitude, it implies the repetition of basic attitudes to others and to life. Furthermore the very meaning of militarization is likely to undergo metamorphoses as a result of these trends.

Details

Critical perspectives on international business, vol. 3 no. 1
Type: Research Article
DOI: https://doi.org/10.1108/17422040710722542
ISSN: 1742-2043

Keywords

  • Organizations
  • History
  • Religion
  • Reasoning

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Article
Publication date: 1 January 2006

The role of business process redesign in creating e‐government in Ireland

Martin Hughes, Murray Scott and Willie Golden

To investigate the role of business process redesign (BPR) in creating citizen‐centred e‐government.

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Abstract

Purpose

To investigate the role of business process redesign (BPR) in creating citizen‐centred e‐government.

Design/methodology/approach

It is argued in this paper that the evolutionary‐based development of BPR is better positioned to expand the use e‐commerce technology in the public sector. The Venkatraman model of IT‐enabled change is used in order to investigate the extent to which BPR was instrumental in the movement to e‐government in Ireland. A case study is presented detailing how the Irish Government's e‐government strategy was devised and implemented.

Findings

This paper details how 50 government authorities were co‐ordinated in an effort to provide a single point of access (portal) to government e‐services. However, as the infrastructure for the portal is to be developed around existing government structures, a full and complete process redesign is unlikely, as the existing authorities must remain in place.

Research limitations/implications

To investigate the unique nature of processes within the public sector so that IS platforms can be developed that accommodate less efficient processes rather than platforms that require unobtainable process redesign.

Practical implications

The establishment of a specific government entity, whose sole purpose is to oversee and implement the e‐government strategy, has contributed greatly to the success achieved to date.

Originality/value

This paper fulfils an identified need for research in BPR in the implementation of e‐government and provides a valuable insight into the successful attainment of citizen‐centred e‐government in other jurisdictions.

Details

Business Process Management Journal, vol. 12 no. 1
Type: Research Article
DOI: https://doi.org/10.1108/14637150610643779
ISSN: 1463-7154

Keywords

  • Electronics industry
  • Government
  • Process management
  • Portals
  • Ireland

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Article
Publication date: 1 November 1950

Longitudinal Stability, Speed and Height: An Examination of Dynamic Longitudinal Stability in Level Flight, Including the Effects of Compressibility and changes in Atmospheric Phenomena with Height

S. Neumark

IN high‐speed level flight in the compressibility region an entirely new factor makes its appearance, viz: small variations of atmospheric density and speed of sound with…

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Abstract

IN high‐speed level flight in the compressibility region an entirely new factor makes its appearance, viz: small variations of atmospheric density and speed of sound with height. This factor affects dynamic stability due to continuous changes of height during longitudinal disturbances; there is no effect in lateral disturbances. The affects are very small in low‐speed flight but they increase steadily with Mach number. The short‐period oscillations are not affected but the corrections to phugoid motion become appreciable in high subcritical flight, larger in supercritical (transonic) range, and very important in supersonic flight. The effects of compressibility are of paramount significance but they should be considered in conjunction with varying height effects. Another result of the investigation is the appearance of a new mode of disturbance, due to the stability quartic being converted into a quintic. The fifth (real) root is often small, it may vary in sign according to aerodynamic properties of the aircraft and characteristics of the power unit. The new mode is a subsidence or a divergence, and it determines height stability or instability, hence it may show to what extent an aircraft is able to keep constant altitude over long stretches of time.

Details

Aircraft Engineering and Aerospace Technology, vol. 22 no. 11
Type: Research Article
DOI: https://doi.org/10.1108/eb031964
ISSN: 0002-2667

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Article
Publication date: 1 July 1958

The Library World Volume 60 Issue 2

FIRST THINGS FIRST AUTUMN may be a time for a new review of our work which is additional to our supreme task of providing and exploiting books. There is no single thing…

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Abstract

FIRST THINGS FIRST AUTUMN may be a time for a new review of our work which is additional to our supreme task of providing and exploiting books. There is no single thing that we have done for the past fifty years that may not be made the better for examination, so long as that examination is cautious. Our publicity for example; is it direct, dignified, appealing; or, is it flabby, sometimes actually silly and sometimes a vain competing with that of great stores or newspapers with their relatively enormous resources? If the truth is accepted that the best expenditure we can make is on books and that the light that radiates from our shelves is from them we shall do well. Open shelves, well‐filled with modern editions of the new and old, are our best exhibition and the only permanently valuable one; our best publicity agents are our satisfied readers. The public will always pass on to others news of things it has proved to be good. If we came without previous knowledge to examine library literature today we might easily infer that books are now a negligible part of the thought of librarians. So much indeed that even librarians themselves have been heard to plead for some knowledge of the greater books of the world amongst themselves. Other writers in these pages and writers elsewhere have done this occasionally. The explanation lies in the fact that the “frills” we add to the real fabric of libraries are just attracting additions made to draw further attention to the existing excellent book‐services we now give. It is probable that the concern for information services, gramophone records and so many other now familiar extras is shown most by librarians whose bookstock is already excellent and is being kept so. Such an explanation we should like to believe.

Details

New Library World, vol. 60 no. 2
Type: Research Article
DOI: https://doi.org/10.1108/eb009425
ISSN: 0307-4803

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Article
Publication date: 7 August 2017

Algorithm rules of interval grey numbers based on different “kernel” and the degree of greyness of grey numbers

San-dang Guo, Sifeng Liu and Zhigeng Fang

The purpose of this paper is to establish the algorithm rules of the interval grey numbers and propose a new ranking method of the interval grey numbers.

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Abstract

Purpose

The purpose of this paper is to establish the algorithm rules of the interval grey numbers and propose a new ranking method of the interval grey numbers.

Design/methodology/approach

The definitions of “kernels” based on lower measure, upper measure or moderate measure are given according to the properties of the interval grey number problems. By means of the measurement error, the concept of the absolute degree of greyness and the relative degree of greyness corresponding to different “kernel” are given, and different simplified forms of the interval grey numbers are put forward.

Findings

The definitions of “kernel” and the degree of greyness in this paper not only take the upper limit, lower limit and the coverage of the interval grey numbers into account, but also avoid the inconsistency of the degree of greyness caused by the different universe of discourse.

Research limitations/implications

Though the method proposed in this paper has some deficiencies, such as the definition of relative degree of greyness is meaningless when the kernel of the interval grey number is 0, it provides a new idea for calculating and sorting the interval grey numbers and is conducive to the further development of the grey system theory.

Originality/value

The method proposed in this paper can not only distinguish interval grey numbers in different situations, but also avoid the inconsistency of the degree of greyness caused by the different universe of discourse. In this basis, the interval grey number algorithm is established and a new ranking method of interval grey numbers is given.

Details

Grey Systems: Theory and Application, vol. 7 no. 2
Type: Research Article
DOI: https://doi.org/10.1108/GS-10-2015-0073
ISSN: 2043-9377

Keywords

  • Kernel
  • Algorithm rules
  • Interval grey numbers
  • The absolute degree of greyness
  • The relative degree of greyness

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Article
Publication date: 28 January 2014

Dynamic assembly simplification for virtual assembly process of complex product

Hong Xiao, Yuan Li, Jian-Feng Yu and Hui Cheng

Virtual assembly process plays an important role in assembly design of complex product and is typically time- and resource-intensive. This paper aims to investigate a…

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Abstract

Purpose

Virtual assembly process plays an important role in assembly design of complex product and is typically time- and resource-intensive. This paper aims to investigate a dynamic assembly simplification approach in order to demonstrate and interact with virtual assembly process of complex product in real time.

Design/methodology/approach

The proposed approach regards the virtual assembly process of complex product as an incremental growth process of dynamic assembly. During the growth process, the current-assembled-state assembly model is simplified with appearance preserved by detecting and removing its invisible features, and the to-be-assembled components are simplified with assembly features preserved using conjugated subgraphs matching method based on an improved subgraph isomorphism algorithm.

Findings

The dynamic assembly simplification approach is applied successfully to reduce the complexity of computer aided design models during the virtual assembly process and it is proved by several cases.

Originality/value

A new assembly features definition is proposed based on the notion of “conjugation” to assist the assembly features recognition, which is a main step of the dynamic assembly simplification and has been translated into conjugated subgraphs matching problem. And an improved subgraph isomorphism algorithm is presented to address this problem.

Details

Assembly Automation, vol. 34 no. 1
Type: Research Article
DOI: https://doi.org/10.1108/AA-12-2012-093
ISSN: 0144-5154

Keywords

  • Assembly
  • Assembly features
  • Dynamic assembly
  • Feature recognition
  • Model simplification
  • Subgraph isomorphism

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Article
Publication date: 1 June 2000

Electromagnetic devices

K. Wiak

Discusses the 27 papers in ISEF 1999 Proceedings on the subject of electromagnetisms. States the groups of papers cover such subjects within the discipline as: induction…

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Abstract

Discusses the 27 papers in ISEF 1999 Proceedings on the subject of electromagnetisms. States the groups of papers cover such subjects within the discipline as: induction machines; reluctance motors; PM motors; transformers and reactors; and special problems and applications. Debates all of these in great detail and itemizes each with greater in‐depth discussion of the various technical applications and areas. Concludes that the recommendations made should be adhered to.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 19 no. 2
Type: Research Article
DOI: https://doi.org/10.1108/03321640010733386
ISSN: 0332-1649

Keywords

  • Simulation
  • Motors
  • Electronics
  • Electrical engineering
  • Algorithms

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Article
Publication date: 28 January 2011

Reliability of operations of grey numbers using kernels

Yingjie Yang and Si‐feng Liu

The purpose of this paper is to advance new rules about operations of grey numbers based on kernels and greyness and analyze the reliability of these new operations.

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Abstract

Purpose

The purpose of this paper is to advance new rules about operations of grey numbers based on kernels and greyness and analyze the reliability of these new operations.

Design/methodology/approach

A grey number is usually represented as a closed interval or a discrete set of numbers. Based on the definition of traditional grey number, novel rules that grey numbers can be represented as their kernels and associated degrees of greyness are proposed. In new rules, the operation between kernels of grey numbers has significance in the application of grey numbers. The reliability of operations of grey numbers using their kernels and the degrees of greyness derived from kernel operations and their corresponding interval operations are studied.

Findings

The results show that the novel rules about operation of grey numbers satisfy to the concept of grey system properly. It is useful to calculate the grey degree of grey numbers and the process of calculating is easier than traditional operation rules.

Practical implications

The method exposed in the paper can be used to calculate each two grey numbers. The grey degree and the calculating results of two grey numbers can be given out easily. The method can also be used to calculate grey numbers more than two.

Originality/value

The paper succeeds in constructing novel operation rules of grey numbers. The reliability of novel operation rules is studied and it is new development of grey systems theory, undoubtedly.

Details

Grey Systems: Theory and Application, vol. 1 no. 1
Type: Research Article
DOI: https://doi.org/10.1108/20439371111106731
ISSN: 2043-9377

Keywords

  • Systems theory

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