The purpose of this paper is to develop a dynamic compact thermal model (DCTM) of electronic packages. This model is a necessary tool for rapid thermal analysis of the systems…
Abstract
Purpose
The purpose of this paper is to develop a dynamic compact thermal model (DCTM) of electronic packages. This model is a necessary tool for rapid thermal analysis of the systems which we exposed to boundary condition variation and/or power switching mode such as mobile systems and battery powered systems.
Design/methodology/approach
The methodology of compact model generation used was based on generating the transient dynamic detailed finite element thermal model of a package, designing a resistor/capacitor network topology representative of the dynamic detailed model, calculating the resistors'/capacitors' value by optimization method and validation efforts. The method is demonstrated for a ball grid array (BGA) package, a commonly used modern electronic package.
Findings
Based on the obtained results, it can be concluded that the dynamic thermal behavior of a BGA package can be accurately described by a generated dynamic compact model in terms of predicted junction temperature response and heat flux of the desired locations of the package.
Originality/value
This model is capable of calculating the temperatures and heat fluxes at desired locations which can help the designer to perform the thermal analysis much faster and easier with the required accuracy.
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Sheshadri Chatterjee, Ranjan Chaudhuri and Demetris Vrontis
The purpose of this study is to examine how the pandemic impacted on business-to-business (B2B) cooperation and coordination, as well as on firms' financial and operational…
Abstract
Purpose
The purpose of this study is to examine how the pandemic impacted on business-to-business (B2B) cooperation and coordination, as well as on firms' financial and operational performance, from the B2B context in the era of knowledge economy.
Design/methodology/approach
With the help of social network theory, coordination theory and existing literature, a theoretical model was developed conceptually. Later, the conceptual model was validated using structural equation modelling technique with consideration of 712 respondents from different firms who are engaged in managing B2B relationships on behalf of their firms.
Findings
The study found that the COVID-19 pandemic has had a considerable moderating impact on the relationship between B2B cooperation and coordination with B2B relationship satisfaction. The study also highlighted that there is a degradation of financial and operational performance of firms due to the impact of COVID-19 pandemic on their B2B relationship management.
Practical implications
There is a challenging and ever-evolving global economy caused by the COVID-19 pandemic. Although it is argued that the pandemic has accelerated the growth of some online firms, it has also had a catastrophic effect, culminating in many firms failing. This study has developed a new business model which helps in improving financial as well as operational performance of the firms in post COVID-19 scenario, especially in the era of knowledge economy.
Originality/value
This is a unique study as this study (1) develops a unique theoretical model with high explanative power, (2) demonstrates how digital reliance and new business model help the firms in post COVID-19 pandemic and (3) adds to the body of literature in the domain of digital reliance, knowledge economy and B2B relationship management.
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Manuel Sardinha, Luís Ferreira, Hermínio Diogo, Tânia R.P. Ramos, Luís Reis and M. Fátima Vaz
This study aims to investigate the tensile strength and compressive behaviour of two thermoplastic polyurethane (TPU) filaments produced via material extrusion (ME): TPU 95A and…
Abstract
Purpose
This study aims to investigate the tensile strength and compressive behaviour of two thermoplastic polyurethane (TPU) filaments produced via material extrusion (ME): TPU 95A and Reciflex (recycled).
Design/methodology/approach
Tensile strength and compressive behaviour are assessed. The influence of extrusion temperature and infill pattern on these properties is examined, supported by thermal characterization, surface morphology analyses and a comprehensive comparison with existing literature. An analytical method is presented for estimating the solid ratio of ME parts, using an ellipse model to describe the material bead geometry.
Findings
Reciflex is generally stiffer than TPU 95A in both tensile and compressive tests. Specimens loaded orthogonally in compression tests exhibited stiffer behaviour than those loaded parallelly, and higher tensile properties were typically observed when material beads were deposited parallel to the load direction. Unlike TPU 95A, Reciflex is sensitive to extrusion temperature variations.
Social implications
By comparing recycled and virgin TPU filaments, this research addresses waste management concerns and advocates for environmentally sustainable production practices in the broadly used filament/based ME technique.
Originality/value
This study provides an extensive comparison of computed values with existing literature, offering insights into how different materials may behave under similar processing conditions. Given ongoing challenges in controlling melt flow during extrusion, these results may offer insights for optimizing the production of ME parts made with thermoplastic elastomers.
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Wanbin Pan, Xinyue Chen, Wei Liu, Lixian Qiao, Haiying Kuang and Wen Feng Lu
This study aims to improve the stiffness of as-printed handles by finding appropriate printing orientations.
Abstract
Purpose
This study aims to improve the stiffness of as-printed handles by finding appropriate printing orientations.
Design/methodology/approach
First, a series of benchmark handles is designed using Taguchi method. Then, for each uniformly sampled printing orientation, every benchmark handle is sliced and undergoes stiffness evaluation (i.e. displacement and mean stress) by using finite element analysis (FEA). This generates a substantial batch of handle-orientation-stiffness samples. With the data, an effective stiffness-prediction network is developed based on the artificial neural network. Finally, using the developed network, the particle swarm optimization is adapted to determine the optimized printing orientation for each input handle, aiming to improve its stiffness.
Findings
Compared with the common slicing software, the printing orientations proposed in this study, based on FEA, result in varying degrees of improvement in stiffness for four handles. Specifically, the displacement and mean stress are reduced by 16.86% and 18.14% on average. The experiments show that the approach has the potential to effectively improve the stiffness of a handle.
Originality/value
Although the anisotropic property in mechanics is unavoidable and difficult to formally describe in 3D printing, the proposed approach can effectively characterize the relationship between the stiffness and the printing orientation for each handle. And, it also can determine an optimized printing orientation for each handle to enhance its stiffness after printing.
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The purpose of this paper is to examine the interrelationship of marketing, accounting and auditing with corporate social responsibility (CSR) to determine the benefit of CSR…
Abstract
Purpose
The purpose of this paper is to examine the interrelationship of marketing, accounting and auditing with corporate social responsibility (CSR) to determine the benefit of CSR marketing, the responsibility of Board of Directors (BODs) with CSR accounting and the duty of external auditors with CSR that has influence on corporate sector.
Design/methodology/approach
This paper uses exploratory and qualitative data obtained from multiple research methods, to investigate benefit of CSR marketing, the responsibility of BODs with CSR accounting and the duty of external auditors with CSR and of its practices by companies’ websites, google search, annual reports and CSR reports from all listed companies in the Muscat Securities Market, Oman. The data are used to critically examine and revise a previously published explanatory framework that identifies interrelationship of CSR marketing, accounting with CSR and auditing with CSR.
Findings
Results indicate that CSR marketing, CSR accounting and CSR auditing are closely interrelated for accepting and implementing CSR requirements by corporates. This finding suggests that the benefit of CSR marketing, the responsibility of BODs with CSR accounting and the duty of external auditors with CSR has positively influence on corporate sector. The finding helps to build good image by corporates.
Practical implications
Organizations from developing countries such as Oman should be aware of CSR marketing, CSR accounting and CSR auditing that affects decisions with CSR adoption and implementation by organizations that could also lead to competitive advantage when it operates in developed countries. Though, organizations in developed countries are also equip for higher expectations by applying innovative CSR initiatives.
Originality/value
To the best of the author’s knowledge, this is the first academic literature review on interrelationship of marketing, accounting and auditing with CSR based on evidence from an Oman context. The paper contributes by exploring the benefit of CSR marketing, the responsibility of BODs with CSR accounting and the duty of external auditors with CSR which influence on corporate sector.
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Jason O. Manaois, Chantal Ellis S. Tabo-Corpuz and Andrew G. Heise
This chapter reviews the empirical evidence for Psychological First Aid (PFA) in the context and experience of the Southeast Asian (SEA) region. First, this chapter provides the…
Abstract
This chapter reviews the empirical evidence for Psychological First Aid (PFA) in the context and experience of the Southeast Asian (SEA) region. First, this chapter provides the definition and background of PFA and its core principles, to explain the basis for doing PFA as part of an integrated approach to disaster mental health. Second, the existing literature on the effectiveness of PFA is reviewed. Third, this chapter examines the application and adaptation of PFA in SEA. Implications and recommendations are provided at the end of the chapter.
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Elirozz Carlie Labaria, Avegale Acosta and Charlotte Kendra Gotangco
Although the Sendai Framework for Disaster Risk Reduction 2015–2030 explicitly recognizes the need for psychosocial support and mental health services, the focus of this and many…
Abstract
Although the Sendai Framework for Disaster Risk Reduction 2015–2030 explicitly recognizes the need for psychosocial support and mental health services, the focus of this and many disaster risk reduction and management (DRRM) plans lies in the response, recovery, and rehabilitation phases. Less attention has been given to how mental health aspects affect the predisaster phase. This chapter explores the less understood concept of “resistance” in the perspectives model of disaster mental health, which is related to DRRM themes of “prevention and mitigation” and “preparedness” interventions. Four strategies are identified by which DRRM interventions can contribute to psychosocial support and mental health: increasing stress resistance, fostering cohesion and social support, fostering positive cognition, and building self-efficacy and hardiness. We review the cases of the Philippines, Indonesia, Myanmar, and Thailand and report existing socio-political DRRM initiatives for prevention, mitigation, and preparedness that can potentially enhance resistance as a predisaster intervention. Beyond medical services or clinical mental health interventions for select populations, DRRM interventions can benefit the general public. Despite natural intersections, there remains a need for deliberate and targeted initiatives that explore how vertical pyschosocial care programs can be created to straddle both DRRM and health sectors in practice.
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Roman Hoffmann and Daniela Blecha
This chapter summarizes the growing theoretical and empirical literature on the role of education in disaster risk reduction with a focus on Southeast Asia. Education and learning…
Abstract
This chapter summarizes the growing theoretical and empirical literature on the role of education in disaster risk reduction with a focus on Southeast Asia. Education and learning can take place in different environments in more or less formalized ways. They can influence disaster vulnerability in direct and indirect ways. Directly, through education and learning, individuals acquire knowledge, abilities, skills and perceptions that allow them to effectively prepare for and cope with the consequences of disaster shocks. Indirectly, education gives individuals and households access to material, informational and social resources which can help reduce disaster vulnerability. This chapter highlights central concepts and terminologies and discusses the different theoretical mechanisms through which education can support disaster risk reduction. Supportive empirical evidence is presented and discussed with a particular focus on the role of inclusiveness in education and challenges in achieving universal access to high-quality education. Based on a situation analysis and best practice cases, policy implications are derived that can inform the design and implementation of education and learning-based disaster risk reduction efforts in the region.
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Helen Bocking, Rebekah Russell-Bennett and Kate Letheren
The use of supportive digital technology – the provision of supportive services and self-management health tools using digital platforms – by marketers is increasing alongside…
Abstract
Purpose
The use of supportive digital technology – the provision of supportive services and self-management health tools using digital platforms – by marketers is increasing alongside research interest in the topic. However, little is known about the motivations to use these tools and which tool features provide different forms of social support (informational, emotional, instrumental, network or esteem). The purpose of this paper is thus to explore consumer perceptions of supportive healthcare self-management and preferences for different levels of interactive features as social support in a health services context.
Design/methodology/approach
A qualitative approach involving 30 semi-structured interviews with consumers interested in two common preventative health services that use supportive digital tools (SDTs) (skin-cancer checks and sexually transmitted infection checks) was undertaken. Thematic analysis was used to analyse the verbatim transcripts.
Findings
This research identified there is a lack of motivation to initiate the search for SDTs; consumers are motivated by a desire to control and monitor health concerns and avoid overuse of the health system. The findings showed a preference for social support to go beyond informational support, with a need for interactivity that personalised support in a proactive manner.
Research limitations/implications
SDTs are positively perceived by consumers as part of health services. The motivation to use these tools is complex, and the social support needed is multifaceted and preferably interactive.
Practical implications
This research assists service marketers to better design informational and instrumental support for preventative self-managed healthcare services.
Originality/value
This paper extends knowledge about the motivation and social support required from SDTs in a preventative health service context.
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Maria Vincenza Ciasullo, Mariarosaria Carli, Weng Marc Lim and Rocco Palumbo
The article applies the citizen science phenomenon – i.e. lay people involvement in research endeavours aimed at pushing forward scientific knowledge – to healthcare. Attention is…
Abstract
Purpose
The article applies the citizen science phenomenon – i.e. lay people involvement in research endeavours aimed at pushing forward scientific knowledge – to healthcare. Attention is paid to initiatives intended to tackle the COVID-19 pandemic as an illustrative case to exemplify the contribution of citizen science to system-wide innovation in healthcare.
Design/methodology/approach
A mixed methodology consisting of three sequential steps was developed. Firstly, a realist literature review was carried out to contextualize citizen science to healthcare. Then, an account of successfully completed large-scale, online citizen science projects dealing with healthcare and medicine has been conducted in order to obtain preliminary information about distinguishing features of citizen science in healthcare. Thirdly, a broad search of citizen science initiatives targeted to tackling the COVID-19 pandemic has been performed. A comparative case study approach has been undertaken to examine the attributes of such projects and to unravel their peculiarities.
Findings
Citizen science enacts the development of a lively healthcare ecosystem, which takes its nourishment from the voluntary contribution of lay people. Citizen scientists play different roles in accomplishing citizen science initiatives, ranging from data collectors to data analysts. Alongside enabling big data management, citizen science contributes to lay people's education and empowerment, soliciting their active involvement in service co-production and value co-creation.
Practical implications
Citizen science is still underexplored in healthcare. Even though further evidence is needed to emphasize the value of lay people's involvement in scientific research applied to healthcare, citizen science is expected to revolutionize the way innovation is pursued and achieved in the healthcare ecosystem. Engaging lay people in a co-creating partnership with expert scientist can help us to address unprecedented health-related challenges and to shape the future of healthcare. Tailored health policy and management interventions are required to empower lay people and to stimulate their active engagement in value co-creation.
Originality/value
Citizen science relies on the wisdom of the crowd to address major issues faced by healthcare organizations. The article comes up with a state of the art investigation of citizen science in healthcare, shedding light on its attributes and envisioning avenues for further development.