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1 – 10 of over 5000
Article
Publication date: 1 April 1992

Nigel W. Hardy

Knowledge‐based programming has provided a paradigm for the development of more effective and robust systems in a variety of fields. Its application to flexible assembly systems…

Abstract

Knowledge‐based programming has provided a paradigm for the development of more effective and robust systems in a variety of fields. Its application to flexible assembly systems (FAS) clearly has its origins and continues to receive impetus from the close historical links between the academic disciplines of Artificial Intelligence and Robotics. In this article some of its potential benefits to assembly systems are examined within the context of a SERC/ACME‐funded research project carried out at The University of Wales, Aberystwyth. The STAR project explored the potential of a variety of knowledge‐based systems in a number of roles and demonstrated how they might co‐operate. Some of these concepts were further explored and applied in the subsequent EUREKA/FAMOS project known as InFACT.

Details

Assembly Automation, vol. 12 no. 4
Type: Research Article
ISSN: 0144-5154

Article
Publication date: 1 June 1947

OUR publication date precludes more than the beginning of our study on the Library Association Conference which, from the point of view of numbers, has been one of the largest. We…

Abstract

OUR publication date precludes more than the beginning of our study on the Library Association Conference which, from the point of view of numbers, has been one of the largest. We shall continue in our next issue such comment upon it as the importance of the subjects under discussion would seem to warrant.

Details

New Library World, vol. 49 no. 11
Type: Research Article
ISSN: 0307-4803

Article
Publication date: 1 April 1985

M.H. Lee, D.P. Barnes and N.W. Hardy

Error recovery is the detection and correction of abnormal events or conditions in the operation of a robot system.

Abstract

Error recovery is the detection and correction of abnormal events or conditions in the operation of a robot system.

Details

Sensor Review, vol. 5 no. 4
Type: Research Article
ISSN: 0260-2288

Article
Publication date: 5 March 2018

Fábio A.O. Fernandes, Dmitri Tchepel, Ricardo J. Alves de Sousa and Mariusz Ptak

Currently, there are some finite element head models developed by research groups all around the world. Nevertheless, the majority are not geometrically accurate. One of the…

Abstract

Purpose

Currently, there are some finite element head models developed by research groups all around the world. Nevertheless, the majority are not geometrically accurate. One of the problems is the brain geometry, which usually resembles a sphere. This may raise problems when reconstructing any event that involves brain kinematics, such as accidents, affecting the correct evaluation of resulting injuries. Thus, the purpose of this study is to develop a new finite element head model more accurate than the existing ones.

Design/methodology/approach

In this work, a new and geometrically detailed finite element brain model is proposed. Special attention was given to sulci and gyri modelling, making this model more geometrically accurate than currently available ones. In addition, these brain features are important to predict specific injuries such as brain contusions, which usually involve the crowns of gyri.

Findings

The model was validated against experimental data from impact tests on cadavers, comparing the intracranial pressure at frontal, parietal, occipital and posterior fossa regions.

Originality/value

As this model is validated, it can be now used in accident reconstruction and injury evaluation and even as a design tool for protective head gear.

Details

Engineering Computations, vol. 35 no. 1
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 1 January 1991

B.F. Kim, J. Bohandy, F.J. Adrian, T.E. Phillips and K. Moorjani

It is of practical importance to measure and control the morphological state of thin film superconductors. Properties such as critical current, magnetic response and high…

Abstract

It is of practical importance to measure and control the morphological state of thin film superconductors. Properties such as critical current, magnetic response and high frequency response are significantly affected by the microstructure of granular thin film specimens. A simple and functional method, magnetically modulated resistance, is described for assessing the granularity of superconductors.

Details

Microelectronics International, vol. 8 no. 1
Type: Research Article
ISSN: 1356-5362

Article
Publication date: 1 February 1990

Klaus Selke

Multi‐dimensional sensor information space enables a system to detect and handle previously unknown errors.

Abstract

Multi‐dimensional sensor information space enables a system to detect and handle previously unknown errors.

Details

Sensor Review, vol. 10 no. 2
Type: Research Article
ISSN: 0260-2288

Article
Publication date: 1 September 2002

B.S. Dhillon, A.R.M. Fashandi and K.L. Liu

This paper presents a review of published literature on robot reliability and safety. The literature is classified into three main categories: robot safety; robot reliability; and…

4522

Abstract

This paper presents a review of published literature on robot reliability and safety. The literature is classified into three main categories: robot safety; robot reliability; and miscellaneous. Robot safety is further categorized into six classifications: general; accidents; human‐factors; safety standards; safety methods; and safety systems/technologies. The period covered by the review is from 1973 to 2001.

Details

Journal of Quality in Maintenance Engineering, vol. 8 no. 3
Type: Research Article
ISSN: 1355-2511

Keywords

Article
Publication date: 29 January 2025

Hong Tian, Yayun Li, Xingli Xie, Jindong Ye, Zhe Liu and Xiuchen Wang

Electromagnetic shielding (EMS) fabrics composed of cotton, polyester and other high-polymer short-staple fibers are widely utilized in various fields. However, the inevitable…

Abstract

Purpose

Electromagnetic shielding (EMS) fabrics composed of cotton, polyester and other high-polymer short-staple fibers are widely utilized in various fields. However, the inevitable pores in these fabrics lead to the leakage of electromagnetic waves, which severely diminishes the fabric’s shielding effectiveness (SE). To address this issue, this paper proposes the implantation of a metamaterial structure known as the “split ring resonator (SRR)” into the fabric.

Design/methodology/approach

Firstly, the types and principles of SRRs are analyzed. Through electromagnetic simulation and emulation, the effectiveness of SRRs in dissipating electromagnetic waves is confirmed. By selecting different embroidery methods, various shapes of SRRs are implanted into the fabric. Subsequently, through testing and analysis of sample fabrics embroidered with SRRs, it is concluded that implanting appropriate SRRs into pure cotton fabrics and cotton/polyester/stainless steel-blended EMS fabrics can effectively impart or enhance the SE of these fabrics.

Findings

For pure cotton fabric without inherent SE, the peak SE value can reach over 30 dB within the 6.57 GHz–7 GHz frequency band, and the minimum SE is greater than 10 dB in the 7 GHz–9.99 GHz frequency band. For the cotton/polyester/stainless steel-blended EMS fabric, the improvement in SE across all frequency bands exceeds 10 dB, averaging around 15.6 dB. The circular type SRR demonstrates the most significant improvement in fabric SE. When the substrate is composed of pure cotton or a cotton/polyester/stainless steel blend, the circular SRRs provide an average enhancement of more than 4 dB and 6 dB, respectively, than other shapes. The fewer the holes created by the implantation method, the higher the SE of the fabric after SRR implantation, with the invisible embroidery technique being the most effective. It improves the fabric’s SE by an average of about 2 dB more than flat embroidery and can be up to an average of around 6 dB higher than the backstitch embroidery technique. For every 0.2 cm increase in the size of the SRRs, the average SE increases by about 4 dB, and for every 0.5 cm increase in the spacing between them, the fabric’s SE decreases by an average of more than 2.7 dB.

Originality/value

This paper offers a novel approach to counteract the issue of pores reducing the SE of EMS fabrics and provides a new method for developing lightweight, thin, low-cost and high-performance EMS fabric composite materials.

Details

International Journal of Clothing Science and Technology, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0955-6222

Keywords

Book part
Publication date: 10 April 2019

Jane K. Lê and Torsten Schmid

While qualitative work has a long tradition in the strategy field and has recently regained popularity, we have not paused to take stock of how such work offers contributions. We…

Abstract

While qualitative work has a long tradition in the strategy field and has recently regained popularity, we have not paused to take stock of how such work offers contributions. We address this oversight with a review of qualitative studies of strategy published in five top-tier journals over an extended period of 15 years (2003–2017). In an attempt to organize the field, we develop an empirically grounded organizing framework. We identify 12 designs that are evident in the literature, or “designs-in-use” as we call them. Acknowledging important similarities and differences between the various approaches to qualitative strategy research (QSR), we group these designs into three “families” based on their philosophical orientation. We use these designs and families to identify trends in QSR. We then engage those trends to orient the future development of qualitative methods in the strategy field.

Article
Publication date: 1 April 2009

Thomaz Wood and Miguel P. Caldas

The concept of organizational identity became a subject of interest within the academic milieu in the mid‐1980s. In this paper, we propose the construct of legacy identities…

Abstract

The concept of organizational identity became a subject of interest within the academic milieu in the mid‐1980s. In this paper, we propose the construct of legacy identities, those persistent identities that, first, endure over time at different levels of expression and, second, are comprised of resilient ideals from the past that represent the perceived persistent character of what the organization used to be. This construct is derived from a case study that portrays the radical transformation of a former state‐owned Brazilian company that became a subsidiary of a North American firm and survived the crisis that originated from its parent company’s debacle. Building on data from the case study, we develop a framework that shows the salience of different identities through time in the company and seek to explain the dynamics underlying these changes.

Details

Management Research: Journal of the Iberoamerican Academy of Management, vol. 7 no. 1
Type: Research Article
ISSN: 1536-5433

Keywords

1 – 10 of over 5000