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1 – 10 of 14
Article
Publication date: 16 November 2010

Peter Scholz, Wolfgang Ackermann and Thomas Weiland

The purpose of this paper is to offer a fast and accurate simulation method for printed spiral radio frequency identification coils and to extract the parameters of an equivalent…

Abstract

Purpose

The purpose of this paper is to offer a fast and accurate simulation method for printed spiral radio frequency identification coils and to extract the parameters of an equivalent resonance circuit.

Design/methodology/approach

The frequency‐dependent port impedance of a rectangular spiral multi‐turn antenna is simulated with the non‐retarded partial element equivalent circuit (PEEC) method. The discretization settings needed for an accurate modeling of skin and proximity effects at medium frequencies as well as parasitic capacitances are discussed. Two different PEEC approaches are used, a magneto‐quasi‐static (resistive and inductive cells) model and a non‐retarded (capacitive cells included) model in order to extract a reduced equivalent resonance circuit which is beneficial to describe the inductive coupling to further inductors via the transformer concept.

Findings

With optimized mesh settings, the extremely fast simulation can be carried out just in seconds whereas the results compared to a computationally much more expensive CST Microwave Studio® reference solution as well as an analytical direct current solution show errors of only about a few percent.

Research limitations/implications

The methodology is limited to frequencies up to the first self‐resonant frequency of the coil. In addition, piecewise‐homogeneous materials are implied.

Originality/value

Specialized mesh settings allow for a very fast and accurate simulation of rectangular spiral inductors. A method for the parameter extraction of a resonance circuit is proposed by evaluating two different PEEC models.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 29 no. 6
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 4 January 2008

Galina Benderskaya, Herbert De Gersem, Wolfgang Ackermann and Thomas Weiland

To provide a reliable numerical technique for the time integration of the electromagnetic models with sinusoidal excitation.

Abstract

Purpose

To provide a reliable numerical technique for the time integration of the electromagnetic models with sinusoidal excitation.

Design/methodology/approach

The numerical integration of an electrotechnical problem is commonly carried out using adaptive time stepping. For one particular selected time step, Runge‐Kutta (RK) adaptive integration methods deliver two approximations to the solution with different order of approximation. The difference between both is used to estimate the local error.

Findings

Standard error‐controlled RK time integration fails for electromagnetic problems with sinusoidal excitation when the adaptive time step selection relies upon the comparison of a main solution and an embedded solution where the difference of orders is one. This problem is overcome when the embedded solution differs by two orders of approximations. Such embedded solution is efficiently constructed by putting appropriate order conditions on the coefficients of the Butcher table.

Originality/value

Using the technique proposed in the paper, electromagnetic problems with sinusoidal dynamics can also be effectively tackled.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 27 no. 1
Type: Research Article
ISSN: 0332-1649

Keywords

Book part
Publication date: 23 August 2021

Mohammad Nurunnabi

The study aims at reviewing a synthesis of disclosure, transparency, and International Financial Reporting Standards (IFRS) implementation in an attempt to provide directions for…

Abstract

The study aims at reviewing a synthesis of disclosure, transparency, and International Financial Reporting Standards (IFRS) implementation in an attempt to provide directions for future research. Prior research overwhelmingly supports that the IFRS adoption or effective implementation of IFRS will enhance high-quality financial reporting, transparency, enhance the country’s investment environment, and foreign direct investment (FDI) (Dayanandan, Donker, Ivanof, & Karahan, 2016; Gláserová, 2013; Muniandy & Ali, 2012). However, some researchers provide conflicting evidence that developing countries implementing IFRS are probably not going to encounter higher FDI inflows (Gheorghe, 2009; Lasmin, 2012). It has also been argued that the IFRS adoption decreases the management earnings in countries with high levels of financial disclosure. In general, the study indicates that the adoption of IFRS has improved the financial reporting quality. The common law countries have strong rules to protect investors, strict legal enforcement, and high levels of transparency of financial information. From the extensive structured review of literature using the Scopus database tool, the study reviewed 105 articles, and in particular, the topic-related 94 articles were analysed. All 94 articles were retrieved from a range of 59 journals. Most of the articles (77 of 94) were published 2010–2018. The top five journals based on the citations are Journal of Accounting Research (187 citations), Abacus (125 citations), European Accounting Review (107 citations), Journal of Accounting and Economics (78 citations), and Accounting and Business Research (66 citations). The most-cited authors are Daske, Hail, Leuz, and Verdi (2013); Daske and Gebhardt (2006); and Brüggemann, Hitz, and Sellhorn (2013). Surprisingly, 65 of 94 articles did not utilise the theory. In particular, four theories have been used frequently: agency theory (15), economic theory (5), signalling theory (2), and accounting theory (2). The study calls for future research on the theoretical implications and policy-related research on disclosure and transparency which may inform the local and international standard setters.

Details

International Financial Reporting Standards Implementation: A Global Experience
Type: Book
ISBN: 978-1-80117-440-4

Keywords

Article
Publication date: 1 October 1998

Andrea Friedrich, Rüdiger Kabst, Wolfgang Weber and Maria Rodehuth

This article raises the question of to what extent functional flexibility is an operatively designed approach with which European companies confront current short‐term changes in…

5265

Abstract

This article raises the question of to what extent functional flexibility is an operatively designed approach with which European companies confront current short‐term changes in their environment, and whether functional flexibility is integrated into long‐term human resource strategies. The proposition is tested that organisations with a strategic human resource management in the sense of a coordinated, objective‐oriented personnel management pattern, show a higher probability of using job rotation than organisations lacking a strategic‐oriented human resource management approach.

Details

Employee Relations, vol. 20 no. 5
Type: Research Article
ISSN: 0142-5455

Keywords

Article
Publication date: 10 November 2020

Wolfgang Grenzfurtner and Manfred Gronalt

This paper aims to identify those factors, which will improve the collaboration between industrialised housebuilding (IHB) companies and their subcontractors within continuous…

Abstract

Purpose

This paper aims to identify those factors, which will improve the collaboration between industrialised housebuilding (IHB) companies and their subcontractors within continuous improvement (CI) programmes. These factors will enhance the supply chain (SC) efficiency and productivity, eliminating obstacles when designing, implementing and managing CI programmes within IHB SC.

Design/methodology/approach

An explorative case study with a mixed-method approach was conducted within an IHB SC. To collect data, participant observation and guided interviews were applied. A stakeholder analysis was conducted to structure their guiding principles. A causal loop diagram (CLD) analysis was used to model the effects on and relationships within a SC and their impact on the involvement of subcontractors.

Findings

The influences on the stakeholders and the guidelines under which they work are defined. Potential conflicts of interest between stakeholders are identified. A CLD is used to model a better understanding of system behaviour impacting on the relationships within the SC and on subcontractor involvement. The results provide a number of factors that need to be considered when designing, implementing and managing a CI programme.

Research limitations/implications

The research suggests better ways to use subcontractors’ specific knowledge of on-site processes such that productivity and efficiency are enhanced. Improvements within the construction supply chain (CSC) will, in the future, not be limited to small improvement gains at company level.

Originality/value

This paper extends the body of knowledge in CSC management by revealing factors important for designing, implementing and managing CI programmes, which enables the successful involvement of subcontractors in CI on SC level.

Details

Supply Chain Management: An International Journal, vol. 26 no. 2
Type: Research Article
ISSN: 1359-8546

Keywords

Article
Publication date: 20 June 2016

Rui Wang and Youhei Kawamura

The purpose of this paper is to present a design of climbing robot with magnetic wheels which can move on the surface of steel bridge. The locomotion concept is based on adapted…

Abstract

Purpose

The purpose of this paper is to present a design of climbing robot with magnetic wheels which can move on the surface of steel bridge. The locomotion concept is based on adapted lightweight magnetic wheel units with relatively high attractive force and friction force.

Design/methodology/approach

The robot has the main advantages of being compact (352 × – 215 × – 155 mm), lightweight (2.3 kg without battery) and simple mechanical structure. It is not only able to climb vertical walls and follow circumferential paths, but also able to pass complex obstacles such as bolts, steps, convex and concave corners with almost any inclination regarding gravity. By using a servo as a compliant joint, the wheel base can be changed to enable the robot to overcome convex corners.

Findings

The experiment results show that the climbing robot has a good performance on locomotion, and it is successful in negotiating the complex obstacles. On the other hand, the limitations in locomotion of the robot are also presented.

Originality/value

Compared with the past researches, the robot shows good performance on overcoming complex obstacles such as concave corners, convex corners, bolts and steps on the steel bridge. Magnetic wheel with the characterization of compact size and lightweight is able to provide bigger adhesion force and friction coefficient.

Details

Industrial Robot: An International Journal, vol. 43 no. 4
Type: Research Article
ISSN: 0143-991X

Keywords

Article
Publication date: 30 June 2020

Wolfgang Grenzfurtner and Manfred Gronalt

A deeper understanding of what needs to be considered to improve the targeted incorporation of employees’ knowledge into continuous improvement (CI) programmes in industrialised…

Abstract

Purpose

A deeper understanding of what needs to be considered to improve the targeted incorporation of employees’ knowledge into continuous improvement (CI) programmes in industrialised housebuilding (IHB) is required. This paper aims to address the current lack of involvement and connect it to structural and corporate culture factors. To avoid misjudgements in improvement activities as well as to use the full potential of performance improvement ideas, CI tools and measures need to be adapted to facilitate this integration. Relevant factors are analysed and their influences on CI measures are assessed.

Design/methodology/approach

The research approach is built upon an explorative case study supported by a comprehensive literature review. Empirical data were collected through participant observation, guided interviews and company documents.

Findings

The influences on employee involvement within CI programmes and the corresponding suitability of important CI measures were evaluated on a set of relevant factors. These factors include unique building projects, project-based focus on order fulfilment, fragmented order fulfilment process, separation of order fulfilment activities in terms of space and time, procedural rules for dealing with on-site failures, short-term contracts with subcontractors and the practice of evaluating and monitoring performance on site.

Research limitations/implications

The research paves the way for the development of suitable tools, measures and methods to effectively involve employees from all profession within a CI programme in IHB. The empirical part of this research is based on a single case study.

Originality/value

This work extends the body of knowledge of CI application in the construction industry with an analysis of factors influencing its implementation and management.

Article
Publication date: 1 March 1986

Brian Waterfield, G. Kersuzan and Boguslaw Herod

The Benelux chapter has made a habit of organising meetings with a scientific and commercial accent more or less alternately. This approach has proven to be successful in the past…

Abstract

The Benelux chapter has made a habit of organising meetings with a scientific and commercial accent more or less alternately. This approach has proven to be successful in the past three years. The 1986 Autumn meeting will be another display meeting. A number of papers will be presented by suppliers of materials and equipment for the hybrid and surface mounting industry. In a 300 m2 exhibition room about 25 companies will display their products. The programme of the day leaves ample opportunity for meeting colleagues and suppliers. The meeting will be held in the ‘Jaarbeurs Vergadercentrum’ in Utrecht on 16 October from 9.30–17.00. The annual ISHM‐Benelux general membership meeting will precede the lectures.

Details

Microelectronics International, vol. 3 no. 3
Type: Research Article
ISSN: 1356-5362

Article
Publication date: 1 December 1997

Wolfgang Mayrhofer

Notes that achieving flexibility for organizations is one of the key issues of management efforts. However, making organizations more flexible may reduce the organizations’…

1486

Abstract

Notes that achieving flexibility for organizations is one of the key issues of management efforts. However, making organizations more flexible may reduce the organizations’ ability to survive unless sustainable flexibility is introduced. Sustainable flexibility tries to find a balance between softness and structuredness, diversity and coherence, and reserves and tight fit. Shows how these three dimensions are characterized and how sustainable flexibility can be reached in organizations.

Details

Employee Relations, vol. 19 no. 6
Type: Research Article
ISSN: 0142-5455

Keywords

Article
Publication date: 1 November 2006

Elayne Coakes

The purpose of this paper is to indicate and illustrate the potential for use of different types of technologies to support knowledge process in transnational organisations.

4846

Abstract

Purpose

The purpose of this paper is to indicate and illustrate the potential for use of different types of technologies to support knowledge process in transnational organisations.

Design/methodology/approach

The paper uses a standard literature review plus illustrations from case organisations to demonstrate the potential applications and value of technology for knowledge sharing.

Findings

Transnational organisations have specific issues relating to space and time, and increasingly virtuality, in their working practices. Technology can assist to alleviate these issues and can provide the organisations with ways to share and distribute knowledge throughout their processes, sites and workforces. Successful knowledge management however, continues to need a sociotechnical approach where the social aspects of knowledge creation, storage and sharing need to be considered alongside the technical. Sociotechnical theory tells us we must importantly consider people, task, process, and environment (both internal and external) when considering how best to implement technology into our organisations.

Research limitations/implications

Case studies that specifically describe the work of transnationals are not common and thus the organisations used as illustrations may be atypical, however we believe this limitation is alleviated by using both a for‐profit and a not‐for‐profit organisation to illustrate the variety of purposes to which technology can be put in transnational organisations.

Originality/value

This paper has major practical implications. It is now common in the knowledge management literature to lower the value of technology for knowledge sharing and to emphasise the human aspects of knowledge sharing. This paper agrees with this perspective but illustrates how technology can be used successfully to assist in the knowledge sharing processes across time, space and virtuality.

Details

The Learning Organization, vol. 13 no. 6
Type: Research Article
ISSN: 0969-6474

Keywords

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