Mohammed A. Alam, Michael H. Azarian, Michael Osterman and Michael Pecht
The purpose of this paper is to present an analytical approach to find the reduction in the required number of surface mount capacitors by the use of embedded capacitors in…
Abstract
Purpose
The purpose of this paper is to present an analytical approach to find the reduction in the required number of surface mount capacitors by the use of embedded capacitors in decoupling applications.
Design/methodology/approach
The analytical model used to perform decoupling is cavity model from theory of microstrip antenna and N‐port impedance matrix. The methodology involves addition of decoupling capacitors between the power and the ground plane such that the impedance between ports on the power‐ground plane becomes lower than the target impedance at that frequency. A case study is presented in which a 0.3 m×0.3 m power‐ground plane is decoupled by using various combinations of surface mount capacitors and embedded capacitors in the frequency range of 0.001‐1 GHz and at a target impedance of 0.1, 0.01, and 0.001 Ω. The total number of surface mount capacitors are compared in each case.
Findings
Use of embedded planar capacitors with a thin dielectric (about 8 mm) dampened board resonances at high frequency, as compared to a thick dielectric. Embedded capacitors are found to reduce the number of surface mount capacitors when the target impedance is low and the operating frequency is high.
Research limitations/implications
The methodology discusses in this paper is applicable to a simplified power‐ground plane (which has no cut‐outs and is rectangular in shape) as compared to actual digital circuits.
Originality/value
This methodology can be used as a quick preliminary tool to evaluate the decrease in the number of surface mount capacitors (by the use of embedded capacitors) as compared to complex and time consuming electromagnetic solvers.
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Arju Afrin Kathy and Mohammed Norul Alam
Groundwater resources are the primary source of meeting the water demand in Bangladesh. In rural areas, hand-pumped tube wells have been the primary source of drinking water…
Abstract
Groundwater resources are the primary source of meeting the water demand in Bangladesh. In rural areas, hand-pumped tube wells have been the primary source of drinking water. Though studies claim that Bangladesh has the potential to achieve universal safe drinking water supply coverage, the presence of excessive arsenic in the shallow groundwater sources, and the encroachment of salinity in the coastal aquifers in coastal regions (Satkhira, Khulna, Bagerhat, Patuakhali, Jhalakathi, Pirojpur, Barisal, Barguna etc.) hind the path. The concerned authorities of government and other non-government organizations assist the coastal people with alternative technologies like Desalination Plant, Arsenic-Iron Removal Plant, Pond Sand Filtration (PSF), Managed Aquifer Recharge, Rainwater Harvesting System, Installation of Shallow, and Deep Tube Wells. But based on case studies and surveys, this article shows how these existing technologies fail to ensure water safety within the coastal areas. The Singaporean water management policy is an example, this article advocates for necessary government intervention to ensure safe drinking water in coastal areas.
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Asiful H. Seikh, Hany S. Abdo, Jabair A. Mohammed, Ubair Abdus Samad, Mohammed Asif Alam, Saeed Alzahrani and El-Sayed M. Sherif
This study aims to develop and evaluate epoxy coatings enhanced with micaceous iron oxide (MIO) and nanocrystalline aluminum (Al) particles, focusing on improving mechanical and…
Abstract
Purpose
This study aims to develop and evaluate epoxy coatings enhanced with micaceous iron oxide (MIO) and nanocrystalline aluminum (Al) particles, focusing on improving mechanical and corrosion-resistance properties for extended durability.
Design/methodology/approach
Three epoxy coatings were fabricated by incorporating 1, 2 and 3 wt% MIO with a fixed 2 wt% of ball-milled Al particles. The coatings were thoroughly characterized using field emission scanning electron microscopy, thermogravimetric analysis, hardness and scratch resistance tests, nanoindentation and electrochemical impedance spectroscopy (EIS). The EIS measurements in 3.5 wt% NaCl solution were performed over various immersion periods (1 h, 7, 14, 21 and 30 days) to study the coatings’ corrosion behavior.
Findings
The coating with 2 wt% MIO exhibited superior corrosion resistance across all immersion periods, outperforming the other formulations. Although corrosion resistance initially declined after seven days of immersion, it improved significantly after extended exposure (14–30 days) due to the formation of protective oxide layers on the coating surface. The combination of MIO and nanocrystalline Al also enhanced the mechanical properties of the epoxy coatings, delivering improved hardness, scratch resistance and overall stability.
Originality/value
This study highlights the synergistic effect of MIO and nanocrystalline Al particles in epoxy coatings, demonstrating their potential to enhance both mechanical performance and long-term corrosion resistance. The research offers valuable insights into the formulation of advanced epoxy coatings for applications requiring durability under harsh conditions.
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Intan Nadirah Mohd Yusof, Mohd Rozi Ahmad, Nur Ain Yusof, Mohamad Faizul Yahya, Ibiwani Alisa Hussain, Raja Mohammed Firhad Raja Azidin and Ahmad Munir Che Muhamed
The purpose of this paper is to investigate the perceived thermal comfort experienced by active Muslim women (AMW) wearing hijabs determined by their experience of comfort…
Abstract
Purpose
The purpose of this paper is to investigate the perceived thermal comfort experienced by active Muslim women (AMW) wearing hijabs determined by their experience of comfort sensation while doing sports activities or regular exercises. This study also examines whether the casual hijabs which are widely used among AMW are able to supply the appropriate comfort for active purposes.
Design/methodology/approach
This study used the quantitative method using survey questionnaires to collect 100 primary data obtained from AMW respondents who are university students located around the Klang Valley region in Malaysia.
Findings
Based on the overall results, this study suggests that the common hijabs that are used for casual applications do not offer sufficient comfort to Muslim women while performing sports activities or regular exercises.
Research limitations/implications
The outcome of this study will help to gain a better understanding on hijab preferences and comfort experienced from the viewpoint of regular hijab users. The information will assist industries to consider the selection of the right materials when developing sportswear hijabs to provide better comfort for more AMW in the near future. The method used in this study is useful to gain information on consumer’s profile and value-added details about the discomfort aspects of hijab which are scarce in the existing literature on thermal comfort.
Originality/value
This study was conducted to explore the type of hijabs commonly worn by AMW while performing sports activities and to obtain their views on the perceived thermal comfort.
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The purpose of the paper is to present the result of an empirical review as to how and to what extent the interest‐free microfinance to micro entrepreneurs contributes in…
Abstract
The purpose of the paper is to present the result of an empirical review as to how and to what extent the interest‐free microfinance to micro entrepreneurs contributes in minimising different cots of both the lender and the borrowers. An institutional‐network theoretical approach is used to study the phenomenon. A qualitative nature of research methodology is used while studying this particular phenomenon. A multiple explanatory case study was adopted as a research strategy in order to focus on contemporary phenomenon within the real life context of different rural‐based micro entrepreneurs and their relationships with the lending organisations. Interest‐free microfinance by Islamic banks is characterised by a close supervision and an in‐kind type of financing, which contributes greatly in promoting lender‐borrower network relationships between the bank and the rural based micro entrepreneurs. Such network relationships result in minimising exchange costs and other business related costs of both the borrowers and the lending organisations. The study was mainly concerned with rural‐based micro entrepreneurs who are engaged in grass‐root type entrepreneurs like poultry and diary firm, handloom industry, etc. Particular reference is made here to the facts of rural‐based micro entrepreneurs and their relationships with Islamic banks in Bangladesh.
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Ahmad Ibrahim Aljumah, Mohammed T. Nuseir and Md. Mahmudul Alam
This study investigates the impact of traditional marketing analytics and big data analytics on the success of a new product. Moreover, it assesses the mediating effects of the…
Abstract
Purpose
This study investigates the impact of traditional marketing analytics and big data analytics on the success of a new product. Moreover, it assesses the mediating effects of the quality of big data system.
Design/methodology/approach
This study is based on primary data that were collected through an online questionnaire survey from large manufacturing firms operating in UAE. Out of total distributed 421 samples, 327 samples were used for final data analysis. The survey was conducted from March–April 2020, and data analysis was done via Structural Equation Modelling (SEM-PLS).
Findings
It emerges that big data analysis (BDA), traditional marketing analysis (TMA) and big data system quality (BDSQ) are significant determinants of new product development (NPD) success. Meanwhile, the BDA and TMA significantly affect the BDSQ. Results of the mediating role of BDSQ in the relationship between the BDA and NPD, as well as TMA and NPD, are significant.
Practical implications
There are significant policy implications for practitioners and researchers concerning the role of analytics, particularly big data analytics and big data system quality, when attempting to achieve success in developing new products.
Originality/value
This is an original study based on primary data from UAE.
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Ahmad Ibrahim Aljumah, Mohammed T. Nuseir and Md. Mahmudul Alam
The aim of the study is to examine the impact of the big data analytics capabilities (BDAC) on the organizational performance. The study also examines the mediating role of…
Abstract
Purpose
The aim of the study is to examine the impact of the big data analytics capabilities (BDAC) on the organizational performance. The study also examines the mediating role of ambidexterity and the moderating role of business value of big data (BVBD) analytics in the relationship between the big data analytics capabilities and the organizational performance.
Design/methodology/approach
This study collected primary data based on a questionnaire survey among the large manufacturing firms operating in UAE. A total of 650 questionnaires were distributed among the manufacturing firms and 295 samples were used for final data analysis. The survey was conducted from September to November in 2019, and data were analyzed based on partial least squares structural equation modeling (PLS-SEM).
Findings
The big data analysis (BDA) scalability is supported by the findings on the performance of firm and its determinants such as system, value of business and quality of information. The roles of business value as a moderator and ambidexterity as mediator are found significant. The results reveal that there is a need for managers to consider the business value and quality dynamics as crucial strategic objectives to achieve high performance of the firm.
Research limitations/implications
The study has significant policy implication for practitioners and researchers for understanding the issues related to big data analytics.
Originality/value
This is an original study based on primary data from UAE manufacturing firms.
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Mohammed Nazish, Mohammed Naved Khan and Zebran Khan
The unethical use of natural resources is contributing to the increasing environmental degradation. The depleting environment poses a threat to the sustainability of present and…
Abstract
Purpose
The unethical use of natural resources is contributing to the increasing environmental degradation. The depleting environment poses a threat to the sustainability of present and future generations. This paper aims to investigate the impact of social media on the green purchase intention of consumers. The research adopts the theory of reciprocal determinism to integrate the variables of social media, green product knowledge, green consumption values and drive for environmental responsibility, assessing their collective impact on green purchase intention.
Design/methodology/approach
Data were gathered from a sample of 310 young consumers using a structured close-ended questionnaire. The proposed hypothesis was tested by employing PLS-SEM.
Findings
The study validates that social media (SM) has the ability to shape consumers' intention to choose more eco-friendly products. In addition to social media, green consumption values and the drive for environmental responsibility exert a significant influence on green purchase intention. However, green product knowledge did not have a significant impact on green purchase intention nor did mediate the relationship between social media and green purchase intention.
Originality/value
The existing scholarly literature indicates that researchers have employed a variety of theories as the basis for their studies aimed at predicting intentions and behaviors related to environmentally conscious purchases. To our knowledge, this is the first study to incorporate social media in the theory of reciprocal determinism. Notably, the paper represents the inaugural investigation in the context of an emerging economy to incorporate green product knowledge as a mediating variable.
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Dewan Mahboob Hossain, Md. Saiful Alam and Mohammed Mehadi Masud Mazumder
The purpose of this article is to explore the impression management practices in Covid-19 related discourses in the annual reports of the insurance companies in Bangladesh.
Abstract
Purpose
The purpose of this article is to explore the impression management practices in Covid-19 related discourses in the annual reports of the insurance companies in Bangladesh.
Design/methodology/approach
To fulfil this objective, the authors have conducted a discourse analysis of the Covid-19 related corporate narratives in the latest annual reports of listed insurance companies. The findings are then interpreted through the lens of impression management theory, following the impression management strategies identified by Caliskan et al. (2021).
Findings
It is found that companies tried to manage the impression of the stakeholders through the strategic use of language. There is evidence that the companies used assertive and performance-oriented tactics to impress their stakeholders. In few cases, defensive strategies were applied.
Practical implications
This study will facilitate improving the understanding of corporate communication during the Covid-19 crisis. Policymakers will be able to understand the current status of Covid-19 related disclosures and consider the necessity to provide guidance that may lead to better accountability during the crisis.
Originality/value
This study will contribute to the limited literature on Covid-19 related disclosure from the context of developing economies. This research is methodologically novel as it applies discourse analysis and interprets the findings through the lens of impression management.
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Ahmed Mohammed, Nasiru Zubairu and Vasco Sanchez Rodrigues
Online food shopping has emerged as a fast-growing market. However, the retail online food supply chain (ROFSC) is attracting increasing attention due to its social, environmental…
Abstract
Purpose
Online food shopping has emerged as a fast-growing market. However, the retail online food supply chain (ROFSC) is attracting increasing attention due to its social, environmental and financial impacts. This study aims to empirically evaluate food waste prevention and mitigation (FWPM) strategies in a real-world case study within the UK ROFSC.
Design/methodology/approach
Advanced methodologies are required to explore and address FWPM problems across ROFSC. Surveys and interviews were conducted with practitioners. Hard and soft data were collected from the case online retailer. Experts from an FWPM non-profit organization checked and validated the data collected.
Findings
Results revealed that inter/cross-organization integrated collaboration and visibility in the ROFSC influence FWPM. Findings established that consumers are the main source of food waste, followed by suppliers and online retailers, with 18, 11 and 1%, respectively. Worryingly, only 1% of respondents expressed that there is a strong commitment to a zero-waste strategy, emphasizing the necessity for more effective waste reduction initiatives and awareness.
Practical implications
The research outcome calls for further efforts by policymakers and practitioners to guide consumers toward efficient food waste management practices.
Originality/value
The study extends previous literature by proposing a holistic framework for reducing food waste from suppliers and consumers. The study captured interesting insights on food waste, including measuring, reasoning and destinations of online food waste.