Search results

THERE are two main types of lasers in use in industry today. These are CO2 gas lasers, which emit a light beam with a wavelength of 10.6 microns, and solid state lasers, generally Nd:YAG (Neodimium Ytrium Aluminium Garnet) with a wavelength of 1.06 microns. However, the use of lasers in the aerospace industry to date is relatively limited for the following reasons:

To design a flexible integrated robotic assembly and rework (remanufacturing) cell for assembly, selective assembly and rework of advanced surface mount components (SMCs) using the generic methodology developed in this paper.

Manual rework procedures are investigated for all advanced SMCs. General and specific component‐related rework considerations are obtained and necessary tooling candidates for automation are determined. This is followed by determination of the specific automated rework procedure and selection of suitable tooling for automated robotic rework and generation and evaluation of design concepts.

The developed methodology, which considers the reflow tool at the centre of the development process, has worked well in designing a flexible integrated robotic assembly and rework cell.

This study identified the rework requirements for advanced SMCs, the essential features for rework reflow tools, criteria for comparing reflow tools, and a generic procedure for design and concept selection.

It provides valuable knowledge for designers of flexible integrated robotic assembly and rework cells for assembly, selective assembly and rework of advanced SMCs.

The purpose of this paper is to apply the developed systematic mechanical design methodologies, that are obtained in part I, to investigate their success in designing mechanics of a flexible printed circuit board assembly (PCBA) rework cell.

The decision of soldering and desoldering tool, which is the most critical function of a PCBA rework or remanufacturing cell, significantly influences overall design concept. Therefore, the paper starts by applying the design methodology to the soldering and desoldering function. The same study is repeated for the rest of the sub‐functions but only the results are provided.

An application of rework machine design methodology for the design of a PCBA rework cell has been made available. In addition to this, the embedded knowledge, such as the requirements list, the function structure, the function/means tree, the weighted objective tree and evaluation chart for the soldering and desoldering function are provided.

The paper is the first work providing both embedded knowledge and the application of the systematic design methodology for the design of a fully automated flexible PCBA rework cell. The methodology leads rework machine designers in a well‐controlled and structured design environment.

The design methodology can be applied to all functions or targeted on key weighted areas to ensure that the designed rework machine meets the key areas of concerns. Furthermore, the methodology is generic and may be used to develop other complex manufacturing sytems.

The problem of providing a reliable and cost‐effective interconnection system between semiconductor devices and other add‐on components and the film circuit has been central to the development of hybrid microelectronic technology since its inception. Many of the techniques used have been adopted from those developed primarily for the semiconductor industry, and not all of these have been entirely suited to hybrid microcircuit production. Thermocompression bonding using gold wire, for example, while acceptable as a process for lead attachment to discrete transistors or semiconductor integrated circuits, in which the duration of exposure to raised temperature is quite short, may be the cause of early or delayed failure when applied to the assembly of a hybrid of any complexity, when the time at temperature is necessarily much longer.

The paper seeks to propose the adoption of an alternative metaphor to that of the “journey”, currently the most pervasive characterisation for the student's experience of doctoral education.

The paper adopts a conceptual and rhetorical approach.

The paper offers a critique of the journey metaphor as a characterisation of the student's doctoral experience and proposes instead the metaphor of the Quest, a cultural and literary form found in most societies. It argues that the six elements of the Quest identified by W.H. Auden resonate with the contemporary doctoral experience and emphasise the uncertainty involved in research rather than the linearity implied by the journey metaphor.

The paper argues that the quest metaphor offers a cross‐cultural basis for both staff and student development activities through which sense can be made of the research experience, student concerns can be surfaced, and potentially difficult issues raised for discussion in an unthreatening way.

The paper is the first to apply the quest as a metaphor for the student's doctoral experience and offers a new way of interrogating that experience which will be of use to those involved in supporting research students.

Legal information work has expanded with the growth in knowledge management and emergence of a new type of knowledge/information manager, the professional support lawyer. This study aims to investigate competency requirements for library‐based information work in UK law firms, including the specialist subject knowledge required, methods of development and the impact on information professionals of professional support lawyers.

The investigation used a pragmatic mixed‐methods approach, including a mainly quantitative questionnaire, administered online to 64 legal information professionals, followed by eight semi‐structured interviews and a focus group with four participants. A literature review informed the questionnaire design and contextualised the findings.

The survey confirmed a broad range of competency requirements and clarified the specific subject knowledge needed. Participants favoured a varied combination of formal, and informal learning. Most participants also wanted specialised professional education for the sector.

The nature of the sample and use of categorised questions were limiting factors, partly compensated by inviting open‐ended comments and follow‐up interviews. A larger study using qualitative methods with professional support lawyers and fee‐earners would provide a fuller more rounded picture.

The findings indicate that the subject knowledge needed for legal information work in law firms is more extensive than for other sectors and suggest that information science departments should strengthen and extend curriculum content to reflect this need.

The study has advanced the understanding of the competency, education and training needs of UK legal information professionals, challenging assumptions about academic/professional qualifications and illuminating the blend of competencies needed.

Driving for work has been identified as potentially one of the riskiest activities performed by workers within the course of their working day. Jurisdictions around the world have passed legislation and adopted policy and procedures to improve the safety of workers. However, particularly within the work driving setting, complying with legislation and the minimum safety standards and procedures is not sufficient to improve work driving safety. This chapter outlines the manner in which safety citizenship behavior can offer further improvement to work-related driving safety by acting as a complementary paradigm to improve risk management and current models and applications of safety culture.

Research on concepts associated with risk management and theoretical frameworks associated with safety culture and safety citizenship behavior are reviewed, along with their practical application within the work driving safety setting. A model incorporating safety citizenship behavior as a complementary paradigm to safety culture is proposed. It is suggested that this model provides a theoretical framework to inform future research directions aimed at improving safety within the work driving setting.

In response to increasing competition for consumer attention, sport governing bodies have innovated short-format, action-oriented versions of traditional sports to attract new fans. This article explores how sport governing bodies (SGBs) manage the need for innovations to both conform to existing stakeholder expectations whilst offering novel benefits in comparison to competition (i.e. legitimate distinctiveness).

Created by the English Cricket Board (ECB), The Hundred competition was used as a case study to explore the conformity-differentiation tension through a legitimacy lens using document and media analysis.

Seven themes were created to explain how the ECB managed legitimacy tensions: rule modification, team creation, scheduling, game-day experience, broadcasting, gender equity and sponsorship. In each theme, differentiation and conformity were traded-off by the ECB to prioritise pragmatic legitimacy with broadcasters and sponsors.

For sport management professionals, the Hundred demonstrates the commercial value of differentiating new sporting events from competitors via hybrid broadcasting partnerships, embedded gender equity and designing game-day experiences that attract hard-to-reach consumer demographics.

SGBs must trade-off legitimacy between sources when innovating to survive, and when faced with conflicting expectations, commercial imperatives determined whether to conform or differentiate.

The key constructs and causal relationships underpinning supply chain dynamics have long been established but this understanding is not readily related to more recently developed supply chain models and theory. The purpose of this paper is to use a case to investigate how selected constructs (variation, uncertainty, performance trade‐offs and buffering mechanisms) may be used to show the dominant causal relationships and through that enhance the theoretical explanation of such models.

The paper uses a single case study that was selected because the transition in supply chain management strategy clearly questioned the need for improved causal reasoning. The case research sources include interviews, temporal performance data and multiple site visits across three echelons of the supply chain.

The cause and effect logic underpinning the case transition have been explained and mapped using these constructs which have then been used to propose enhancements to the Fisher supply chain strategy model in generalising theoretical guidance.

These constructs, together with the generic strategies, provide additional clarity concerning generic options for strategic improvement as well as causal understanding of the buffering implications.

This paper uses a case study to enhance current theory by exploring means of better supporting theoretical prediction and explanation.