Search results

1 – 7 of 7
Article
Publication date: 20 November 2023

Reddy K. Prasanth Kumar, Nageswara Rao Boggarapu and S.V.S. Narayana Murty

This paper adopts a modified Taguchi approach to develop empirical relationships to the performance characteristics (output responses) in terms of process variables and…

Abstract

Purpose

This paper adopts a modified Taguchi approach to develop empirical relationships to the performance characteristics (output responses) in terms of process variables and demonstrated their validity through comparison of test data. The method suggests a few tests as per the orthogonal array and provides complete information for all combinations of levels and process variables. This method also provides the estimated range of output responses so that the scatter in the repeated tests can be assessed prior to the tests.

Design/methodology/approach

In order to obtain defect-free products meeting the required specifications, researchers have conducted extensive experiments using powder bed fusion (PBF) process measuring the performance indicators (namely, relative density, surface roughness and hardness) to specify a set of printing parameters (namely, laser power, scanning speed and hatch spacing). A simple and reliable multi-objective optimization method is considered in this paper for specifying a set of optimal process parameters with SS316 L powder. It was reported that test samples printed even with optimal set of input variables revealed irregular shaped, microscopic porosities and improper melt pool formation.

Findings

Finally, based on detailed analysis, it is concluded that it is impossible to express the performance indicators, explicitly in terms of equivalent energy density (E_0ˆ*), which is a combination of multiple sets of selective laser melting (SLM) process parameters, with different performance indicators. Empirical relations for the performance indicators are developed in terms of SLM process parameters. Test data are within/close to the expected range.

Practical implications

Based on extensive analysis of the SS316 L data using modified Taguchi approach, the optimized process parameters are laser power = 298 W, scanning speed = 900 mm/s and hatch distance = 0.075 mm, for which the results of surface roughness = 2.77 Ra, relative density = 99.24%, hardness = 334 Hv and equivalent energy density is 4.062. The estimated data for the same are surface roughness is 3.733 Ra, relative density is 99.926%, hardness is 213.64 Hv and equivalent energy density is 3.677.

Originality/value

Even though equivalent energy density represents the energy input to the process, the findings of this paper conclude that energy density should no longer be considered as a dependent process parameter, as it provides multiple results for the specified energy density. This aspect has been successfully demonstrated in this paper using test data.

Details

Multidiscipline Modeling in Materials and Structures, vol. 20 no. 1
Type: Research Article
ISSN: 1573-6105

Keywords

Article
Publication date: 19 April 2023

Tae Hee Lee, Mina Jung and Youngseek Kim

This study aims to investigate the factors influencing the data sharing habits of psychologists with respect to academic reciprocity.

Abstract

Purpose

This study aims to investigate the factors influencing the data sharing habits of psychologists with respect to academic reciprocity.

Design/methodology/approach

A research model was developed based on Ostrom’s (2003) theory of collective action to map psychologists’ underlying motivations for data sharing. The model was validated by data from a survey of 427 psychologists, primarily from the psychological sciences and related disciplines.

Findings

This study found that data sharing among psychologists is driven primarily by their perceptions of community benefits, academic reciprocity and the norms of data sharing. This study also found that academic reciprocity is significantly influenced by psychologists’ perceptions of community benefits, academic reputation and the norms of data sharing. Both academic reputation and academic reciprocity are affected by psychologists’ prior experiences with data reuse. Additionally, psychologists’ perceptions of community benefits and the norms of data sharing are significantly affected by the perception of their academic reputation.

Research limitations/implications

This study suggests that Ostrom’s (2003) theory of collective action can provide a new theoretical lens in understanding psychologists’ data sharing behaviours.

Practical implications

This study suggests several practical implications for the design and promotion of data sharing in the research community of psychology.

Originality/value

To the best of the authors’ knowledge, this is one of the initial studies that applied the theory of collective action to the mechanisms of reputation, community benefits, norms and reciprocity in psychologists’ data sharing behaviour. This research demonstrates that perceived community benefits, academic reputation and the norms of data sharing can all encourage academic reciprocity, and psychologists’ perceptions of community benefits, academic reciprocity and data sharing norms all facilitate their data sharing intentions.

Details

The Electronic Library , vol. 41 no. 2/3
Type: Research Article
ISSN: 0264-0473

Keywords

Article
Publication date: 30 November 2023

Dandan Zhu, Nina Michaelidou, Belinda Dewsnap, John W. Cadogan and Michael Christofi

This study aims to follow a rigorous approach to identify, critically analyze and synthesize 75 papers published from 2000 to 2022.

1149

Abstract

Purpose

This study aims to follow a rigorous approach to identify, critically analyze and synthesize 75 papers published from 2000 to 2022.

Design/methodology/approach

The study presents a systematic literature review on identity expressiveness (IE), clarifying and expanding what is currently known about the concept.

Findings

To synthesize current knowledge on IE, the study uses the overarching framework of antecedents-phenomenon-consequences, using this same framework to identify gaps and future research directions. The findings show individual and brand-related factors such as the need for uniqueness and anthropomorphism as antecedents of IE, and eWOM/WOM, impulse purchases and upgrading to more exclusive lines as consequences of IE.

Research limitations/implications

The study contributes to theory by synthesizing and mapping current understanding of the state of knowledge on the concept of IE while highlighting gaps in the extant literature and paving future research directions for scholars in the field.

Practical implications

The study offers useful insights for practitioners, broadening marketers’ actionable options in identity-based marketing. Marketers can use insights from this study to inform marketing strategy and communication campaigns for different types of brands.

Originality/value

To the best of the authors’ knowledge, this study is the first of its kind and offers an integrative review of the current literature on IE, thus enhancing understanding of the concept, its antecedents and consequences. The study also contributes to knowledge by highlighting future research priorities for researchers in this field of enquiry.

Article
Publication date: 7 October 2022

Liping Liao and Zhijiang Wu

The booming social media attracts construction professionals (CPs) to express emotions caused by work pressure (WP) through online behaviors. Previous works focus on the analysis…

Abstract

Purpose

The booming social media attracts construction professionals (CPs) to express emotions caused by work pressure (WP) through online behaviors. Previous works focus on the analysis of WP and emotions but do not adequately consider how WP can be reflected through online emotions. Thus, this study aims to attempt to explore the quantitative relationship between online emotional intensity and WP.

Design/methodology/approach

This study developed a linguistic-sticker (LS) model to quantitatively evaluate the sentiment intensity of posts published on social media. Moreover, the authors designed two econometric models of ordinary least squares regression and negative binomial regression to test the hypothesis.

Findings

The research found that posts with stronger negative sentiment (or positive sentiment) indicate that CPs face higher (or lower) WP. Besides, there is a negative bias between the sentiment intensity of posts and the comment quantity.

Practical implications

The positive correlation between sentiment intensity of posts and WP has been confirmed, which indicates that construction managers should pay more attention to CPs' behavior on social media, and take a more direct way to analyze work-related online behavior (e.g. posting, commenting). The dynamic monitoring of emotion-related posts also provides a direct basis for the management team to learn about CP's pressure status and propose measures to reduce their negative emotions. Furthermore, the emotional posts published by CPs on social media provide a direct basis for team managers to obtain their psychological state.

Originality/value

The research contributes to incorporating CPs' emotions into the LS model and to providing information systems artifacts and new findings on the analysis of WP and online emotions.

Details

Engineering, Construction and Architectural Management, vol. 31 no. 2
Type: Research Article
ISSN: 0969-9988

Keywords

Article
Publication date: 25 May 2023

Hannah Lester, Yana Ryakhovskaya and Titus S. Olorunnisola

Resilience is an increasingly important concept that contributes to sustainability and wellbeing of a community. Asset-based community development (ABCD) may offer promising…

Abstract

Purpose

Resilience is an increasingly important concept that contributes to sustainability and wellbeing of a community. Asset-based community development (ABCD) may offer promising approaches to boosting community resilience in Australia, especially within marginalised groups.

Design/methodology/approach

A scoping review was conducted to conceptualise existing literature on ABCD approaches to building resilience. Research databases were searched with relevant details.

Findings

Thirty-three sources were identified as meeting the inclusion criteria and were reviewed in terms of six themes: integration and identity, health, mental health, education, employment and community planning. Issues identified by the literature within these themes can be alleviated through asset-based approaches. Implications for planning of asset-based programs and policy change are discussed in light of the findings.

Practical implications

The results of this study provide several implications for practise, policy recommendations and future research into this area. Results suggest that increasing capacity around asset-based coping mechanisms, such as support networks through religious and cultural groups, would promote community development and foster resilience. Furthermore, policy on refugees in multiple areas, such as psychological service provision and employment, should be redesigned in a way that acknowledges their complex and diverse needs and facilitates their integration into the community. Though multiple ways to achieve this goal have been explored in literature, a sustained and broader approach is necessary to see widespread change. Further research and funding are required to explore and implement appropriate responses. Based on the findings and discussion above, the authors make the following policy recommendations. Service providers need to be aware of and incorporate culturally appropriate programs in the areas of mental health assessment and intervention, education and employment. The trauma-informed approach should be used when dealing with refugee groups and other groups who have faced hardships. Government policy should focus on improving community engagement to create and strengthen social networks, which are vital in boosting integration into the community and increasing health education and access to services. Government should focus on asset-based approaches in designing education and employment integration programs to promote social belonging and community engagement, and thus, community resilience, which will consequently have beneficial individual and group outcomes. The current governmental policy surrounding refugees should be overhauled with the goal of successful refugee integration in mind, such as incorporating the ability for refugees to access vital services such as employment and skills transferability programs. Due to current policy, these services are inaccessible to a large portion of refugees, hindering their integration. Government needs to create specific guidelines for the provision of psychological services to refugees to improve the quality of mental health services available to this group.

Originality/value

This paper comprises an original data analysis of the relevant existing literature by the project team. The process was rigorous, and no content of the analysis has been published previously except the material published by other authors. All previously published materials were duly acknowledged.

Details

International Journal of Migration, Health and Social Care, vol. 19 no. 2
Type: Research Article
ISSN: 1747-9894

Keywords

Article
Publication date: 28 March 2024

Hyejin Kwon, Youngok Choi and Richard Hazenberg

The paper aims to explore the roles and impact of design in incubating and accelerating social enterprises. It aims to understand design’s influence on social enterprise…

Abstract

Purpose

The paper aims to explore the roles and impact of design in incubating and accelerating social enterprises. It aims to understand design’s influence on social enterprise ecosystems and in improving outcomes for social enterprises.

Design/methodology/approach

The study used an exploratory, qualitative approach, using case studies and interviews. The comparative case-study methodology was applied to evaluate the influence of design on the development of social enterprises in the UK and South Korea and identify critical issues in their utilisation of design. Empirical data included: in-depth case studies of design utilisation practices (UK = 6; South Korea = 15) and design applications (UK = 2; South Korea = 2) for the growth of social enterprise and its ecosystem; 27 social enterprise/design experts (UK = 17; South Korea = 10); and 22 social enterprises (UK = 12; South Korea = 10). Content and thematic analysis were used to synthesise the findings.

Findings

Findings demonstrate the differing influences of design on social enterprise, from improving products/services and business models to enhancing social enterprise ecosystem support and networks. Future directions are suggested for applying design for social enterprise growth, business stage development and systematising interactions between the social enterprise and design sectors.

Research limitations/implications

The research is based on case studies from only two countries. Further, the adoption of working definitions of social enterprise in the countries may result in the research underestimating the heterogeneity of social enterprise.

Practical implications

The findings contribute to optimising efficient ecosystem development to improve social enterprise competitiveness and innovation.

Originality/value

This paper establishes a research foundation on design for social enterprise, offering theoretical and practical insights into its impact on growth.

Details

Social Enterprise Journal, vol. 20 no. 3
Type: Research Article
ISSN: 1750-8614

Keywords

Open Access
Article
Publication date: 19 May 2022

Jianfeng Zhao, Niraj Thurairajah, David Greenwood, Henry Liu and Jingfeng Yuan

The unprecedented SARS-CoV-2 (COVID-19) pandemic has further constrained the budgets of governments worldwide for delivering their much-needed infrastructure. Consequently…

1599

Abstract

Purpose

The unprecedented SARS-CoV-2 (COVID-19) pandemic has further constrained the budgets of governments worldwide for delivering their much-needed infrastructure. Consequently, public-private partnerships (PPPs), with the private sector's investment and ingenuity, would appear to be an increasingly popular alternative. Value for money (VfM) has become the major criterion for evaluating PPPs against the traditional public sector procurement and, however, is plagued with controversy. Hence, it is important that governments compare and contrast their practice with similar and disparate bodies to engender best practice. This paper, therefore, aims to understand governments' assessment context and provide a cross-continental comparison of their VfM assessment.

Design/methodology/approach

Faced with different domestic contexts (e.g. aging infrastructure, population growth, and competing demands on finance), governments tend to place different emphases when undertaking the VfM assessment. In line with the theory of boundary spanning, a cross-continental comparison is conducted between three of the most noticeable PPP markets (i.e. the United Kingdom, Australia and China) about their VfM assessment. The institutional level is interpreted by a social, economic and political framework, and the methodological level is elucidated through a qualitative and quantitative VfM assessment.

Findings

There are individual institutional characteristics that have shaped the way each country assesses VfM. For the methodological level, we identify that: (1) these global markets use a public sector comparator as the benchmark in VfM assessment; (2) ambiguous qualitative assessment is conducted only against PPPs to strengthen their policy development; (3) Australia's priority is in service provision whereas that of the UK and China is project finance and production; and (4) all markets are seeking an amelioration of existing controversial VfM assessments so that purported VfM relates to project lifecycles. As such, an option framework is proposed to make headway towards a sensible selection of infrastructure procurement approaches in the post COVID-19 era.

Originality/value

This study addresses a current void of enhancing the decision-making process for using PPPs within today's changing environment and then opens up an avenue for future empirical research to examine the option framework and ensuing VfM decisions. Practically, it presents a holistic VfM landscape for public sector procurers that aim to engage with PPPs for their infrastructure interventions.

Details

Engineering, Construction and Architectural Management, vol. 30 no. 8
Type: Research Article
ISSN: 0969-9988

Keywords

Access

Year

Last 12 months (7)

Content type

Article (7)
1 – 7 of 7