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Article

J. Falk, J. Hauke and G. Kyska

Although wire‐bonding is an established and well‐known technique for micro‐joining on leadframes, direct die‐attach without housing on printed circuit boards has some new…

Abstract

Although wire‐bonding is an established and well‐known technique for micro‐joining on leadframes, direct die‐attach without housing on printed circuit boards has some new requirements for the surface of the bond pads and the PCB itself. The best choice of material for the bond pads is a pure gold metallisation. The quality of the surface can be tested during wire‐bonding using the ultrasonic‐power process window. It will be shown that the surface and the PCB itself have a considerable influence on the ultrasonic and thermosonic bonding process.

Details

Circuit World, vol. 20 no. 2
Type: Research Article
ISSN: 0305-6120

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Article

J. Falk

The influence of process heat, with regard to wire‐ and substrate‐materials, on the adhesion of wire‐bonds was investigated. Temperature increases up to 200°C were…

Abstract

The influence of process heat, with regard to wire‐ and substrate‐materials, on the adhesion of wire‐bonds was investigated. Temperature increases up to 200°C were measured on the interface between surface and wire. This temperature is the basis for demonstrating the important influence of dissipated process heat on the cold welding process of wire‐bonding. Complementary calculations to evaluate the equation of thermal conductivity were carried out using the finite element (FE) method. Bonding tests were able to verify the calculations. These thermodynamical considerations give us a new method to optimize the construction and the choice of materials within the wire‐bond process.

Details

Microelectronics International, vol. 15 no. 1
Type: Research Article
ISSN: 1356-5362

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Article

Muhammad Farooq, Hikmat Ullah Khan, Tassawar Iqbal and Saqib Iqbal

Bibliometrics is one of the research fields in library and information science that deals with the analysis of academic entities. In this regard, to gauge the productivity…

Abstract

Purpose

Bibliometrics is one of the research fields in library and information science that deals with the analysis of academic entities. In this regard, to gauge the productivity and popularity of authors, publication counts and citation counts are common bibliometric measures. Similarly, the significance of a journal is measured using another bibliometric measure, impact factor. However, scarce attention has been paid to find the impact and productivity of conferences using these bibliometric measures. Moreover, the application of the existing techniques rarely finds the impact of conferences in a distinctive manner. The purpose of this paper is to propose and compare the DS-index with existing bibliometric indices, such as h-index, g-index and R-index, to study and rank conferences distinctively based on their significance.

Design/methodology/approach

The DS-index is applied to the self-developed large DBLP data set having publication data over 50 years covering more than 10,000 conferences.

Findings

The empirical results of the proposed index are compared with the existing indices using the standard performance evaluation measures. The results confirm that the DS-index performs better than other indices in ranking the conferences in a distinctive manner.

Originality/value

Scarce attention is paid to rank conferences in distinctive manner using bibliometric measures. In addition, exploiting the DS-index to assign unique ranks to the different conferences makes this research work novel.

Details

The Electronic Library , vol. 37 no. 1
Type: Research Article
ISSN: 0264-0473

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Article

James Chowhan, Margaret Denton, Catherine Brookman, Sharon Davies, Firat K. Sayin and Isik Zeytinoglu

The purpose of this paper is to examine the mediating role of stress between work intensification and musculoskeletal disorders (MSDs) focusing on personal support workers…

Abstract

Purpose

The purpose of this paper is to examine the mediating role of stress between work intensification and musculoskeletal disorders (MSDs) focusing on personal support workers (PSWs) in home and community care.

Design/methodology/approach

The analysis sample of 922 comes from the 2015 survey of PSWs employed in Ontario, Canada. The endogenous variable is self-reported MSDs, and the exogenous variable is work intensification. Stress, measured as symptoms of stress, is the mediating variable. Other factors shown in the literature as associated with stress and/or MSDs are included as control variables. Structural equation model regression analyses are presented.

Findings

The results show that stress mediates the effect of work intensification on PSW’s MSDs. Other significant factors included being injured in the past year, facing hazards at work and preferring less hours – all had positive and significant substantive effects on MSDs.

Research limitations/implications

The survey is cross-sectional and not longitudinal or experimental in design, and it focuses on a single occupation in a single sector in Ontario, Canada and, as such, this can limit the generalizability of the results to other occupations and sectors.

Practical implications

For PSW employers including their human resource managers, supervisors, schedulers and policy-makers, the study recommends reducing work intensification to lower stress levels and MSDs.

Originality/value

The findings of this study contribute to the theory and knowledge by providing evidence on how work intensification can affect workers’ health and assist decision makers in taking actions to create healthy work environments.

Details

Personnel Review, vol. 48 no. 2
Type: Research Article
ISSN: 0048-3486

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Article

Nurul Aisyah Sim Abdullah, Nor Laila Mohd Noor and Emma Nuraihan Mior Ibrahim

The purpose of this study is to investigate the contributing factors to E-government disruptions in Malaysia public service. Researchers have highlighted that the main…

Abstract

Purpose

The purpose of this study is to investigate the contributing factors to E-government disruptions in Malaysia public service. Researchers have highlighted that the main factors that contribute to IT service failure are the people, process and technology. However, relatively few empirical studies examine to what extent these factors contribute to E-government service disruptions. This study explores the level of contribution of each factor to the E-government service disruptions.

Design/methodology/approach

The research was conducted based on the hypothetical-deductive approach. Based on the synthesized literature review, a conceptual model is proposed and several hypotheses are developed. The study was undertaken using questionnaires via convenience sampling whereby eight frontline agencies, six departments and four ministries in Malaysian public service were selected. The selected agencies are frontline agencies (agencies that deal directly with citizens) and have implemented E-government. The respondents consist of IT department employees of those agencies. The data for this research were analyzed using the descriptive and inferential statistics analysis.

Findings

Statistically, both human error and process failure are significantly correlated with E-government service disruptions in the Malaysian public sector. More importantly for this research, the empirical results reveal that human action, decision, management, error and failure are the major causes to the E-government disruptions, followed by an improper process or procedures. In addition, it is found that technology failure is not significantly contributing to the E-government disruption frequency in the Malaysian public sector. Human error is an important factor and needs to be given more attention by the management, as human is the creator, who uses, manages and maintains the technology and process to enable the delivery of services as specified in the objectives, vision and mission of the organization. However, the approach used to address E-government disruptions is more toward technology-oriented and revolves around the recovery process.

Research limitations/implications

The study only focuses on three main factors, which are people, process and technology, and the target sample focuses only front-end service agencies. Further study can be extended by incorporating the other factor such as organizational environment, and the sample size could be expanded by including all agencies in public services. As human failure is a major cause of E-government disruptions, the proposed future research should also study the causes of human failure and how to address the problem by developing a resilient organization.

Practical implications

The results of this study have two implications: first is the discovery of the disruption factors that affect E-government service availability, and second is that the results of this study prioritized the factors that contribute to E-government service disruptions. This information would be beneficial to local, state and national governments for further action to ensure the availability and sustainability of E-government implementation.

Originality/value

This study identifies the factors that contribute to the service disruption of E-government and, thus, gives the priority of each factor based on its contribution to the E-government service disruption. This is an important finding because it enables public sector agencies to plan and implement improvements as needed and at the appropriate rate for each IT service component to ensure the E-government availability guarantee.

Details

Transforming Government: People, Process and Policy, vol. 10 no. 1
Type: Research Article
ISSN: 1750-6166

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Article

Amir Abolhassani, Ky Layfield and Bhaskaran Gopalakrishnan

The purpose of this paper is to analyze lean strategic practices being implemented in manufacturing facilities throughout Pennsylvania and West Virginia and identify the…

Abstract

Purpose

The purpose of this paper is to analyze lean strategic practices being implemented in manufacturing facilities throughout Pennsylvania and West Virginia and identify the difficulty in implementing those lean practices.

Design/methodology/approach

A skip logic questionnaire was developed into multiple sections for analysis; demographics of respondents, identification of the knowledge and practice of lean methods, interpretation of lean application, strategic direction of lean methods, measurements of expertise, and difficulties for practicing lean. The questionnaire was sent to 327 manufacturing facilities where 51 usable responses were collected for the study.

Findings

Lean manufacturing is a widely recognized and practiced business philosophy as a significant percentage of manufacturers have implemented some variation of practice. However, the extent of knowledge does not mirror awareness. The application of lean manufacturing practices is not readily appropriate for every company, but adopting the concept of customer-focussed waste reduction to maximize value can be universally applied as waste reduction was the most prominent practice pursued. Lean practitioners found that poka-yoke and installing new process equipment have the highest degree of benefits from implementation while 5S and eliminating waste were the least difficult practices to implement. In general, the management personnel of the companies have an influential effect on lean manufacturing pursuance. This is illustrated by the fact of high agreement between facilities that resistance to change from employees is the most prominent difficulty for implementation followed by limited technical knowledge of lean manufacturing at operational and conceptual levels.

Research limitations/implications

The research findings are from a subset of manufacturing companies in Pennsylvania and West Virginia and may not represent all of the companies on a national level. The results must be interpreted in the context of the data acquisition approach due to the extent of the sample size involved, the procedure for how data were collected, and assuming that each lean strategic practice has the same weight to calculate the facility lean index.

Practical implications

The results provide insight about the effect of facility size and years of lean practicing for various lean strategic practices. The most beneficial and least difficult lean strategies, their implementation level, and the real challenges for implementing lean were also identified to help both lean practitioner and non-practitioner for the lean journey.

Originality/value

The research investigates current lean strategic practices pursued by manufacturers throughout Pennsylvania and West Virginia and identifies obstacles to implementation of lean practices. Lean manufacturing is widely sought after as a continuous improvement program, but success is divided. This study characterizes lean manufacturing comprehension while identifying knowledge areas of strengths and deficiencies. There lacks an established structure for lean practices to pursue. Therefore, this study provides manufacturers a measure for comparing their position for refined decision making.

Details

International Journal of Productivity and Performance Management, vol. 65 no. 7
Type: Research Article
ISSN: 1741-0401

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Article

Lee Bosher, Andrew Dainty, Patricia Carrillo and Jacqueline Glass

Professions involved with the construction industry need to become more aware of disaster risk management (DRM) activities if lessons are to be learned from the past and a…

Abstract

Purpose

Professions involved with the construction industry need to become more aware of disaster risk management (DRM) activities if lessons are to be learned from the past and a resilient built environment attained in the future. This study aims to focus on identifying which construction‐associated stakeholders should be involved with DRM initiatives in the UK, and when these stakeholders should be involved. This research is thereby unique and a key step in the longer‐term aim of identifying how stakeholders should be involved and what issues they need to address regarding the integration of DRM into construction decision making.

Design/methodology/approach

This paper presents the findings of a UK‐wide questionnaire survey, semi‐structured interviews and a validation exercise involving a range of professionals from construction, planning, insurance, emergency management and local/national government agencies.

Findings

This research identifies the key construction stakeholders that should be responsible for ensuring that resilience issues become integrated and ensuring the key stages of the design‐construction‐operation process where their inputs are required.

Originality/value

The finding presented are an important and logical step in the longer term aim of identifying how stakeholders should be better involved and what issues they need to address regarding the integration of DRM into construction decision making.

Details

Engineering, Construction and Architectural Management, vol. 14 no. 5
Type: Research Article
ISSN: 0969-9988

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Article

Asifa Iqbal and Mats Wilhelmsson

There is a lack of understanding in the literature on the relation between parks and house price in relation to crime in Scandinavian context. This paper aims to…

Abstract

Purpose

There is a lack of understanding in the literature on the relation between parks and house price in relation to crime in Scandinavian context. This paper aims to investigate the effect of the amenity value of accessibility to parks on apartment prices with reference to crime rates in parks in Stockholm.

Design/methodology/approach

This paper analyses the effects of park proximity and crime in parks on apartment prices by using geographic information systems and hedonic modelling.

Findings

Findings show that the proximity of parks as an environmental amenity has an effect on apartment prices. The results also demonstrate that the impact of parks on apartment prices is different in the different segments of the apartment market in Stockholm. Moreover, various types of parks may differ in their impact, for instance, grass parks and park blocks are more desirable in Stockholm than landscape parks and neighbourhood parks. The effects of crimes in parks influence apartment prices negatively.

Originality/value

This paper provides a new methodology by using the shortest distance to a park as a main variable. The shortest distance to a park variable is considered a better choice than using park as an aggregate measure. To the best of the author’s knowledge, this is the first study that investigates the effect of specific park types, for instance, grass parks, neighbourhood parks, landscape parks and park blocks, in Stockholm housing market.

Details

International Journal of Housing Markets and Analysis, vol. 11 no. 4
Type: Research Article
ISSN: 1753-8270

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Article

Juan C. Rivera‐Vazquez, Lillian V. Ortiz‐Fournier and Felix Rogelio Flores

This paper aims to identify the cultural barriers that set back knowledge production and sharing in organizations of the Municipality of Caguas at the Commonwealth of the

Abstract

Purpose

This paper aims to identify the cultural barriers that set back knowledge production and sharing in organizations of the Municipality of Caguas at the Commonwealth of the Puerto Rico in order to find effective ways to overcome them. The purpose is to explore how the enterprise promotes efficiency among employees and how they develop a suitable environment for knowledge production and sharing.

Design/methodology/approach

The qualitative research consists of in‐depth interviews, carried out to management personnel, and questionnaires submitted to the employees. Two hypotheses are developed and tested using the results obtained from four organizations, public and private.

Findings

The interview responses show that at the managerial level both private and public agencies have overcome the identified barriers that set back the knowledge sharing, while from the questionnaires it is found at the employee level that several cultural barriers such as organizational environment, emotional intelligence and managers' commitment are still present.

Research limitations/implications

Although limited by the small sample of critical actors, this study includes international and regional organizations that serve the Municipality of Caguas. The results may set a basis to develop a methodology to analyze the presence or absence of cultural barriers in other organizations, and municipalities of Puerto Rico.

Originality/value

This investigation may be used to develop standard procedures to cope with culture differences when establishing a suitable environment for knowledge production and sharing among employees.

Details

Journal of Knowledge Management, vol. 13 no. 5
Type: Research Article
ISSN: 1367-3270

Keywords

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Article

Camilo Andrés Bayona Roa, Joan Baiges and R Codina

The purpose of this paper is to apply the variational multi-scale framework to the finite element approximation of the compressible Navier-Stokes equations written in…

Abstract

Purpose

The purpose of this paper is to apply the variational multi-scale framework to the finite element approximation of the compressible Navier-Stokes equations written in conservation form. Even though this formulation is relatively well known, some particular features that have been applied with great success in other flow problems are incorporated.

Design/methodology/approach

The orthogonal subgrid scales, the non-linear tracking of these subscales, and their time evolution are applied. Moreover, a systematic way to design the matrix of algorithmic parameters from the perspective of a Fourier analysis is given, and the adjoint of the non-linear operator including the volumetric part of the convective term is defined. Because the subgrid stabilization method works in the streamline direction, an anisotropic shock capturing method that keeps the diffusion unaltered in the direction of the streamlines, but modifies the crosswind diffusion is implemented. The artificial shock capturing diffusivity is calculated by using the orthogonal projection onto the finite element space of the gradient of the solution, instead of the common residual definition. Temporal derivatives are integrated in an explicit fashion.

Findings

Subsonic and supersonic numerical experiments show that including the orthogonal, dynamic, and the non-linear subscales improve the accuracy of the compressible formulation. The non-linearity introduced by the anisotropic shock capturing method has less effect in the convergence behavior to the steady state.

Originality/value

A complete investigation of the stabilized formulation of the compressible problem is addressed.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 26 no. 3/4
Type: Research Article
ISSN: 0961-5539

Keywords

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