Search results
1 – 10 of 20Superconductive ceramics, at present, have not yet grown into a practical material for actual application to devices and systems, but are still in the raw material stage within…
Abstract
Superconductive ceramics, at present, have not yet grown into a practical material for actual application to devices and systems, but are still in the raw material stage within the research laboratory. This paper will discuss some application possibilities in Japan to the HMT field: LSI wiring, transistors, hybrid ICs, and packaging, from electrical, physical and chemical aspects, supposing that only such superconductive ceramics as Y‐Ba‐Cu‐O(YBCO) and Bi‐Sr‐Ca‐Cu‐O(BSCCO) under liquid nitrogen cooling can be used.
T. Kwikkers, J. Lantaires, R.B. Turnbull, H.T. Law, Barry George and Dave Savage
On 20 April ISHM‐Benelux held its 1988 Spring meeting at the Grand Hotel Heerlen. This meeting was totally devoted to implantable devices, in particular to the technologies used…
Abstract
On 20 April ISHM‐Benelux held its 1988 Spring meeting at the Grand Hotel Heerlen. This meeting was totally devoted to implantable devices, in particular to the technologies used for these high reliability, extremely demanding devices. For this meeting ISHM‐Benelux was the guest of the Kerkrade facility of Medtronic. Medtronic (headquartered in Minneapolis, USA) is the world's leading manufacturer of implantable electronic devices. Apart from the assembly of pacemakers and heart‐wires, the Kerkrade facility acts as a manufacturing technology centre for Medtronic's European facilities.
Nihal Sinnadurai, G. Kersuzan, B.S. Sonde, Boguslaw Herod, Brian C. Waterfield, J.B. Knowles and M.A. Stein
I was an invited speaker to the ISHM‐Benelux meeting. As I arrived early, I also sat in on the committee meeting as an observer. Jos B. Peeters was the outgoing president and the…
Abstract
I was an invited speaker to the ISHM‐Benelux meeting. As I arrived early, I also sat in on the committee meeting as an observer. Jos B. Peeters was the outgoing president and the incoming committee was widened to about 15 members compared with the previous 6. Following the unanimous election of all those nominated, the committee reconvened and elected Mr Kwikkers as the new president of ISHM‐Benelux. He is a professor at the Technische Hogeschole in Delft.
Tomoaki Akiba, Hisashi Yamamoto and Yasuhiro Tsujimura
For the considered system, an enumeration method is applicable to evaluate the exact system reliability only for very small‐sized systems, because, when the size of system is…
Abstract
Purpose
For the considered system, an enumeration method is applicable to evaluate the exact system reliability only for very small‐sized systems, because, when the size of system is large, it takes huge execution time. Therefore, the paper provides approximate values for the system reliability as useful for calculating the reliability of large systems in a reasonable execution time.
Design/methodology/approach
The paper provides upper and lower bounds of the system reliability, and limit theorem for the reliability of our considered system in i.i.d. case.
Findings
The paper experimentally finds that the proposed upper and lower bounds are effective when component reliabilities close to one or the value of k becomes larger. Next, it concludes approximate values for approximate equation derived from the limit theorem are always smaller than lower bound through numerical experiments.
Research limitations/implications
The upper and lower bounds for the reliability of a system can be calculated by using the reliability of a small system by the same idea as previous study for two‐dimensional system.
Practical implications
Up to now some researchers studied multi‐dimensional consecutive‐k‐out‐of‐n:F systems, and showed promising applications of such multi‐dimensional models, e.g. diagnosis of a disease diagnosed by reading an X‐ray. As another examples, three‐dimensional system can be applied for the mathematical model of a three‐dimensional flash memory cell failure model, and so on.
Originality/value
The paper considers a kind of three‐dimensional k‐within‐consecutive‐r‐out‐of‐n:F system. It proposes upper and lower bounds of the system reliability and limit theorem.
Details
Keywords
Barrie O. Pettman and Richard Dobbins
This issue is a selected bibliography covering the subject of leadership.
Abstract
This issue is a selected bibliography covering the subject of leadership.
Details
Keywords
In order to stimulate the interest of company management in the business perspective of internal audit this paper aims to investigate the possibilities of using internal audit as…
Abstract
Purpose
In order to stimulate the interest of company management in the business perspective of internal audit this paper aims to investigate the possibilities of using internal audit as a helpful managerial tool and describes the benefits of such use.
Design/methodology/approach
The benefits of IA as a managerial tool are investigated on a review of the relevant literature. Theoretically based findings are tested analytically using evidence from empirical research and empirically by a case study research.
Findings
Internal audit outcomes and benefits for management depend on the purpose of internal audit and on managers' support and expectations about it. The paper shows that in order to use internal audit as an effective managerial tool, internal audit has to be appropriately integrated within a strategic management system. The greatest benefits can be achieved by companies that are internally motivated to introduce the QMS which have a mature quality culture and QMS and their quality objectives linked to the business ones.
Practical implications
Discussing internal audit benefits from a managerial point of view is not a common approach in the professional literature on this topic. However, covering managers' needs by using quality tools is one of the most important issues companies should understand in order to make these tools attractive and beneficial. Showing the results of a real‐life case can convince managers from other companies that benefits of using IA as a managerial tool are tangible.
Originality/value
Internal audit purpose and results have been theoretically integrated within a broader managerial system of the company. This enables identification of possible business benefits resulting from appropriate implementation of internal audit itself and possible business benefits related to QMS and strategic management system of the company that can be affected through appropriate IA implementation.
Details
Keywords
Guus Keusters, Frédérique Batelaan, Froukje SleeswijkVisser, Erik-Jan Houwing and Hans Bakker
The increasing complexity of civil engineering projects necessitates focusing on new competencies of project participants. Based on the research on team performance and design…
Abstract
Purpose
The increasing complexity of civil engineering projects necessitates focusing on new competencies of project participants. Based on the research on team performance and design processes that are more closely linked to the relevance of the project context, it is hypothesised that empathic abilities could play an important role in the performance of civil engineering projects. Therefore, this study aims to investigate whether performance can be improved by focusing on empathic abilities during the integrated design phase.
Design/methodology/approach
Semi-structured in-depth interviews with experts were conducted to explore the relevance of empathic abilities and their interaction with performance in a real-life infrastructure project. The project team’s empathy level was measured by means of a survey using Davis’ Interpersonal Reactivity Index method. Finally, differences between expected and measured levels of empathy were analysed.
Findings
The results provide insights into how empathic abilities interact with performance. The measurement indicates that, on average, professionals in the civil engineering industry score relatively low on empathy. In addition, differences were identified between the expected distribution and the measured empathy levels of the team, implying a potential for improvement, in particular by increasing the empathic abilities of the project management and increasing gender diversity.
Originality/value
To the best of the authors’ knowledge, this study is the first to investigate a relationship between empathy and the performance of civil engineering projects. The results provide initial insights into the empathic ability of civil engineering project teams and the potential of empathy to improve performance. Furthermore, from an empathy perspective, this study advocates increasing the gender diversity of project teams to improve performance.
Details
Keywords
The University of Illnois Information Retrieval Research Laboratory contracted with the United States Federal Emergency Management Agency (FEMA) to identify and analyze…
Abstract
The University of Illnois Information Retrieval Research Laboratory contracted with the United States Federal Emergency Management Agency (FEMA) to identify and analyze word‐oriented databases of potential relevance to FEMA. A subject profile technique was used to measure how many potentially relevant citations were found in selected databases, thus allowing a ranking and comparison of databases for the multidisciplinary field of emergency management. “Distribution of Citations in Databases in a Multidisciplinary Field” describes the ranking of databases relevant to emergency management and demonstrates the applicability of Bradford's law of scatter to citations in databases. This article describes an experiment to compare the subject profile technique used in the FEMA project to another common database coverage evaluation technique — the ‘bibliography’ or ‘review article’ technique. Although the two techniques have slightly different purposes, they can both be used to compare the coverage of databases in a particular subject area. This study shows the subject profile technique to be less costly and less time consuming.
Employee participation is an important construct in contemporary organisations. Recently, the argument has concentrated on whether leader direction and participation can co‐exist…
Abstract
Employee participation is an important construct in contemporary organisations. Recently, the argument has concentrated on whether leader direction and participation can co‐exist. It is argued that leader direction is perceptually acceptable by employees at the strategic level of the decision process but is interpreted as intrusive at the tactical (task) level. This study examined the possibility of any interaction effects between leader direction at the task level and participation, and whether this exacerbated the relationship between participation and favourable work‐related attitudes. A total of 108 middle managers were surveyed using measures for both dimensions of leader direction, participation, job satisfaction, commitment and intrinsic motivation. Separate two‐step moderator regression analysis was conducted to test the hypothesis. Results indicate that while participation predicts significantly all work‐related attitudes, both leader direction variables exacerbated the relationship between participation and job satisfaction. Implications of the results and future research are also discussed.
Details