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Article
Publication date: 3 October 2016

Matthew Sibanda and Robert Ryk van Zyl

Incorporating electromagnetic compatibility (EMC) in the design life of traditional satellites is entrenched in the satellite industry. However, EMC treatment of CubeSats has not…

233

Abstract

Purpose

Incorporating electromagnetic compatibility (EMC) in the design life of traditional satellites is entrenched in the satellite industry. However, EMC treatment of CubeSats has not been widely pursued, for various possible reasons. CubeSats are a young technology platform initially intended for students and researchers at universities to create awareness and excitement amongst them for space technology. This and other factors limited the need for stringent EMC planning. As CubeSats mature in complexity, the success of future missions will rely on incorporating proper EMC designs in their development. This paper aims to address the experimental investigation of known EMC culprits within a CubeSat’s context.

Design/methodology/approach

Electromagnetic interference suppression effectiveness of cable trays in CubeSats, as well as crosstalk in high-speed/frequency data links, is investigated, using the PC/104 connector stack. Some recommendations for improving the EMC and, therefore, enhancing satellite mission success are provided.

Findings

It was found that, if physically feasible in the CubeSat, cable trays are significant radiation suppressors. A further investigation into crosstalk between pins of the PC/104 connector stack showed that grounding a pin in between two signal pins leads to a significant reduction in the coupled signal.

Originality/value

This paper addresses EMC within the context of a CubeSat and outlines experiments done resulting in cost-effective methods of reducing interference by using already available material (such as unused signal pins available in the PC/104 connector).

Details

Journal of Engineering, Design and Technology, vol. 14 no. 4
Type: Research Article
ISSN: 1726-0531

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Article
Publication date: 18 June 2020

Kazeem Babawale Kasali, Yusuf Olatunji Tijani, Matthew Oluwafemi Lawal and Yussuff Titilope Lawal

In this paper, we studied the steady flow of a radiative magnetohydrodynamics viscoelastic fluid over an exponentially stretching sheet. This present work incorporated the effects…

81

Abstract

Purpose

In this paper, we studied the steady flow of a radiative magnetohydrodynamics viscoelastic fluid over an exponentially stretching sheet. This present work incorporated the effects of Soret, Dufour, thermal radiation and chemical reaction.

Design/methodology/approach

An appropriate semi-analytical technique called homotopy analysis method (HAM) was used to solve the resulting nonlinear dimensionless boundary value problem, and the method was validated numerically using a finite difference scheme implemented on Maple software.

Findings

It was observed that apart from excellence agreement with the results in literature, the results obtained gave further insights into the behaviour of the system.

Originality/value

The purpose of this research is to investigate heat and mass transfer profiles of a MHD viscoelastic fluid flow over an exponentially stretching sheet in the influence of chemical reaction, thermal radiation and cross-diffusion which are hitherto neglected in previous studies.

Details

Multidiscipline Modeling in Materials and Structures, vol. 16 no. 6
Type: Research Article
ISSN: 1573-6105

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Article
Publication date: 4 August 2021

Balakrishnan A.S. and Usha Ramanathan

The purpose of this paper is to examine the role of digital supply chain (DSC) technologies in automotive supply chain resilience (SCR) practices to improve the supply chain…

5690

Abstract

Purpose

The purpose of this paper is to examine the role of digital supply chain (DSC) technologies in automotive supply chain resilience (SCR) practices to improve the supply chain performance (SC-Perf.) objectives of companies operating in the automotive industry. This study also compares the results of the associated SC-Perf objectives before and after the COVID-19 pandemic outbreak lockdown situation.

Design/methodology/approach

The authors undertook in-depth empirical research using a questionnaire survey to explore the performance of automotive supply chains. The sample for this study consisted of practitioners from supply chain entities such as automotive original equipment manufacturers, Tier-1 component manufacturers and lead logistics providers in Asia-Pacific (AP) emerging markets. Research questions, framework and hypotheses were developed using the literature review.

Findings

The research outcome from analysis of the data the authors collected from an emerging market context, specifically the automotive sector, emphasizes the role of DSC technologies and encourages the firm’s SCR practices which, in turn, supports the SC-Perf objectives. The DSC technologies competency moderates the SCR and SC-Perf objectives relation, and the moderation effect is higher for post-COVID-19 pandemic outbreak lockdown situation than at prior state.

Research limitations/implications

The scope of the study is restricted to the automotive firms in the AP region. The data were collected from a representative sample of the population through a questionnaire survey. The small size of the sample incurs a certain level of subjectivity.

Practical implications

This research provides practical insights for practitioners and academicians on DSC technologies’ influence in SCR practices to improve the firm’s SC-Perf. This research shares the literature insights on use of DSC technologies across the sector to allow the automotive firm to reassess the existing operational practices.

Originality/value

The paper adds insights on introducing or implementing DSC technologies across AP automotive firms to increase the operations’ performance by improving SCR practices and sustainability.

Details

Supply Chain Management: An International Journal, vol. 26 no. 6
Type: Research Article
ISSN: 1359-8546

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Article
Publication date: 15 February 2022

Edem M. Azila-Gbettor, Christopher Mensah and Martin Kwasi Abiemo

The paper examined the mediating effect of meaningfulness of study on the relation between self-efficacy and academic programme satisfaction within higher education setup.

638

Abstract

Purpose

The paper examined the mediating effect of meaningfulness of study on the relation between self-efficacy and academic programme satisfaction within higher education setup.

Design/methodology/approach

A total of 376 randomly selected students took part in the study by completing a self-reported survey. Data were analysed using PLS-SEM.

Findings

Results suggest self-efficacy and meaningfulness of studies positively predict student's satisfaction with academic programme. Besides, meaningfulness of study mediates the relation between self-efficacy and student's satisfaction of academic programme.

Originality/value

This study is one of the first to provide empirical evidence of the influence of meaningfulness of studies on self-efficacy and student academic programme satisfaction in the higher education context.

Details

International Journal of Educational Management, vol. 36 no. 3
Type: Research Article
ISSN: 0951-354X

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Article
Publication date: 9 August 2024

Kevin Z. Chen, Luyun Yu, Wen Lin and David L. Ortega

The purpose is to understand the factors affecting Chinese diet selections and propose strategies for revolutionizing Chinese diets toward healthy ones.

124

Abstract

Purpose

The purpose is to understand the factors affecting Chinese diet selections and propose strategies for revolutionizing Chinese diets toward healthy ones.

Design/methodology/approach

This study implemented an online discrete choice experiment to identify the factors affecting diet selections among urban Chinese consumers. Four different diet patterns were used to label each of the product alternatives in the experiment, which varied in taste and cost. Specifically, implying the healthiness and sustainability of a diet, the diet alternatives included the average diet, the Chinese Food Guide Pagoda diet, the EAT-Lancet diet and the Flexitarian diet. Using consumer data from six provincial capital cities, we used random parameter logit models to estimate their preferences.

Findings

Diet type and diet cost were found to be more important in urban Chinese consumers' diet selections than the ability to customize taste. The average diet, although not healthy and sustainable, was preferred most by respondents, signaling the challenges of shifting the consumer diet in China. Increasing the cost of the average diet can significantly promote sustainable healthy diet choices among urban Chinese residents. In other words, improving the affordability of sustainable healthy diets would have the potential to fuel the diet revolution in China.

Originality/value

Instead of choices of a single food item, this paper focused on the individual selection of a diet, where different food products can act as substitutes or as complements for one another. We also proposed a way to assess individual preferences and valuations for several different diets.

Details

China Agricultural Economic Review, vol. 16 no. 4
Type: Research Article
ISSN: 1756-137X

Keywords

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Article
Publication date: 28 June 2024

Masoud Bagherpasandi, Mahdi Salehi, Zohreh Hajiha and Rezvan Hejazi

This paper aims to determine the key factors and provide an effective model to enhance the performance of sustainable supply chain management (SSCM).

136

Abstract

Purpose

This paper aims to determine the key factors and provide an effective model to enhance the performance of sustainable supply chain management (SSCM).

Design/methodology/approach

Data were collected using a semi-structured interview technique, a snowball sampling method and qualitative study method. For this purpose, ten supply chain and food production managers and experts were interviewed semi-structured. The data were analyzed using open, central and selective coding methods with grounded theory approach. In the proposed model, 13 principal codes have been specified, including organizational productivity, sustainable supply chain (SSC), industry supply chain, macro policies, organizational performance, social factors, economic factors, organizational factors, political factors, technology, manufactured products, customer and supply chain failures.

Findings

The model and concepts obtained from the participants clearly show that several reasons and motivations are involved in increasing the performance of SSCM. Moreover, the designed model indicates that the motives and reasons for turning to this system are satisfactory when implemented.

Originality/value

The distinctive and knowledge-enhancing feature of this paper compared to previous studies is the focus on the selected background, intervening and causal factors with the influence of strategies designed to achieve a new and local model for the SSC model and assess its impact on organizational performance and productivity. The proposed components of this paper have not been investigated so far.

Details

Benchmarking: An International Journal, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1463-5771

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Article
Publication date: 20 October 2023

Mohd Shahir Omar, Muhammad Fakhrul Yusuf and Jack Kie Cheng

This study aims to identify the factors to food safety certification adoption among farmers in Malaysia.

229

Abstract

Purpose

This study aims to identify the factors to food safety certification adoption among farmers in Malaysia.

Design/methodology/approach

This study was conducted qualitatively using a method of interviewing with unstructured questions. To identify the factors that influence and prevent the adoption of food safety certification among Malaysian farmers, nine (n = 9) agricultural industrial experts were randomly chosen.

Findings

Based on data analysis using thematic analysis, the respondent highlighted 14 factors to food safety certification. Specifically, the most frequent determinant highlighted by the respondent is enforcement (12). Additionally, it has been proven that the identified factors aligned with existing theories: technology, organization and environment (TOE) framework and eco-innovation theory. These theories help researchers to create effective strategies and produce significant findings from their research.

Originality/value

To the best of the authors’ knowledge, this study is the first to investigate food safety certification adoption among farmers in the Malaysian agriculture industry using the integration of the TOE framework and eco-innovation theory. The stakeholder is expected to receive the benefits of creating efficient campaigns to encourage more farmers to obtain food safety certification. This study provides further knowledge by improving the understanding of the processes involved in certification adoption, providing context-specific insights, best practices, policy guiding development and emphasizing the effects of certification on sustainability and competitiveness.

Details

Journal of International Trade Law and Policy, vol. 22 no. 3
Type: Research Article
ISSN: 1477-0024

Keywords

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Article
Publication date: 14 November 2023

Meri Indri Hapsari, Amin Hanif Mahmud, Sri Herianingrum, R. Moh Qudsi Fauzy, Siti Ngayesah Ab. Hamid, Arka Prabaswara and Lina Mawaddatul Masfiyah

The purpose of this study is to analyse, firstly, whether education, financial inclusion, financial literacy and financial planning can be antecedents that affect Islamic welfare…

456

Abstract

Purpose

The purpose of this study is to analyse, firstly, whether education, financial inclusion, financial literacy and financial planning can be antecedents that affect Islamic welfare and, secondly, whether productivity can be a mediator to improve Islamic welfare.

Design/methodology/approach

This study involved quantitative research using data obtained from a survey. The respondents were 538 Muslim families in East Java, Indonesia. Structural equation modelling was used for the analysis.

Findings

This study tested 13 hypotheses, of which 10 were accepted. The accepted hypotheses refer to the effects of financial literacy on productivity, financial inclusion on productivity, financial planning on productivity, financial planning on Islamic welfare, education on Islamic welfare, productivity on Islamic welfare, financial literacy and productivity on Islamic welfare, financial inclusion and productivity on Islamic welfare and financial planning and productivity on Islamic welfare, as well as the effects of financial inclusion on Islamic welfare. Meanwhile, three hypotheses were not accepted; they refer to the effects of financial literacy on Islamic welfare, the effect of education on productivity, as well as the impact of education and productivity on Islamic welfare.

Research limitations/implications

The study was conducted only with respondents living in East Java, so the results depict the condition of Muslim families’ welfare in East Java.

Originality/value

Research into the antecedents of Islamic welfare has received little academic attention, so this study explores how education, financial inclusion, financial literacy, financial planning and productivity could affect Islamic welfare among Muslim families.

Details

International Journal of Islamic and Middle Eastern Finance and Management, vol. 17 no. 1
Type: Research Article
ISSN: 1753-8394

Keywords

Available. Open Access. Open Access
Article
Publication date: 24 July 2024

Felix Chari and Bethuel Sibongiseni Ngcamu

The world-over, it is evident that, numbers and frequency of natural disasters have increased tremendously. The effects have given birth to a worldwide, all-inclusive humanitarian…

293

Abstract

Purpose

The world-over, it is evident that, numbers and frequency of natural disasters have increased tremendously. The effects have given birth to a worldwide, all-inclusive humanitarian response and preparedness. In Zimbabwe, Cyclone Idai has ushered in the exploitation of various social media platforms by humanitarian organisations as a way of reaching out to the wider population on critical issues pertaining to the devastating effects of the cyclone. This study herein, aims to interrogate the efficacy of various social media platforms that were exploited by various humanitarian organisation involved in the Cyclone Idai humanitarian response. The various social media platforms are interrogated to establish their contribution to inclusivity or lack of it in relaying humanitarian interventions.

Design/methodology/approach

A mixed-method approach was used to conduct the research. Quantitative and qualitative methods were applied to gather the data. Quantitative data was collected using questionnaires with Likert scales and other closed questions provided. These were administered to representatives from the government, United Nations, donors, non-governmental organisations (NGOs), and members of the community. On the contrary, qualitative data was gathered from members of the community and humanitarian organisations through open-ended responses provided from interviews. Quantitative data was collected from a total of 384 stakeholder representatives who were randomly selected from Chimanimani district of Manicaland province. In addition, 12 interview participants were purposively selected to complement the research tools listed above.

Findings

The study findings show that social media platforms to a greater extent are effective tools for creating inclusive humanitarian response. The study findings reveal that social media has a significant positive influence on inclusive humanitarian response, with a 5% level of significance. These quantitative results agree with results obtained from interviewed participants. Managers of NGOs, community-based groups, government agencies and churches engaged in managing rescue, relief and humanitarian aid are supposed to access the study's findings in the future, and may find the results resourceful.

Research limitations/implications

This study's generalisability to other districts and countries is constrained because it was conducted in the setting of the Chimanimani district. Future research can therefore be expanded to other Zimbabwean areas as well as to other countries in the Southern African region and beyond.

Practical implications

Humanitarian supply chain managers engaged in managing rescue, relief and humanitarian aid are proposed as having access to the study's findings in the future as they may find them useful.

Originality/value

This study contributes to the literature by providing insights that can improve information flow. This can be achieved by including different stakeholders in decision-making through the use of social media during disaster preparedness and response processes and helping them to better prepare for and respond to future disasters.

Details

Journal of Humanitarian Logistics and Supply Chain Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2042-6747

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Article
Publication date: 28 January 2020

Tosin Tiamiyu, Farzana Quoquab and Jihad Mohammad

The demand for Airbnb is at a peak in Malaysia with 137% of yearly growth. As such, it is indeed important to understand what makes tourists to switch to Airbnb. However, little…

718

Abstract

Purpose

The demand for Airbnb is at a peak in Malaysia with 137% of yearly growth. As such, it is indeed important to understand what makes tourists to switch to Airbnb. However, little has been known about this issue in the existing literature. Considering this, the present study aims to shed some light on the factors that drive tourists to switch to Airbnb. More specifically, the objectives of this study are to examine the direct effects of price unfairness and alternative attractiveness on psychological engagement, and to examine the direct effect as well as the mediating effect of psychological engagement towards tourists’ switching intention in the context of Malaysian Airbnb.

Design/methodology/approach

By considering the attribution theory, this study developed and tested a framework to examine tourists’ switching intentions. A Web-based survey was designed to collect the data which yielded 162 complete and usable responses. Structural equation modelling, more particularly, partial least squares (SmartPLS, version 3) technique was used to analyze the data.

Findings

The results revealed that price unfairness negatively affects psychological engagement, which in turn negatively affects tourists’ switching intention. However, no significant relationship was found between alternative attractiveness and psychological engagement. Additionally, psychological engagement mediated the relationship between “price unfairness and tourists’ switching intention”, but not between “alternative attractiveness and tourists’ switching intention.”

Practical implications

It is expected that the findings of this study will enable the hoteliers to better understand the impact of perceived unfairness, alternative attractiveness and psychological engagement in provoking tourists to switch to Airbnb services. It eventually will assist them in improving their offerings and services accordingly.

Originality/value

The discussion on Airbnb is quite new in the tourism literature. This study is among the pioneers to highlight the switching intention towards Airbnb in the Malaysian market. Guided by the attribution theory, this study developed and tested comparatively new linkages. More specifically, no prior study has considered psychological engagement as the antecedent of the switching intention which this study attempted to address. Additionally, this is a prior study that examines the mediating effect of psychological engagement between price unfairness, alternative attractiveness and switching intention.

Details

International Journal of Tourism Cities, vol. 6 no. 1
Type: Research Article
ISSN: 2056-5607

Keywords

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