243 research outputs found

    Numerical study of chemical reaction effects in magnetohydrodynamic Oldroyd B oblique stagnation flow with a non-Fourier heat flux model

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    Reactive magnetohydrodynamic (MHD) flows arise in many areas of nuclear reactor transport. Working fluids in such systems may be either Newtonian or non-Newtonian. Motivated by these applications, in the current study, a mathematical model is developed for electrically-conducting viscoelastic oblique flow impinging on stretching wall under transverse magnetic field. A non-Fourier Cattaneo-Christov model is employed to simulate thermal relaxation effects which cannot be simulated with the classical Fourier heat conduction approach. The Oldroyd-B non-Newtonian model is employed which allows relaxation and retardation effects to be included. A convective boundary condition is imposed at the wall invoking Biot number effects. The fluid is assumed to be chemically reactive and both homogeneous-heterogeneous reactions are studied. The conservation equations for mass, momentum, energy and species (concentration) are altered with applicable similarity variables and the emerging strongly coupled, nonlinear non-dimensional boundary value problem is solved with robust well-tested Runge-Kutta-Fehlberg numerical quadrature and a shooting technique with tolerance level of 10−4. Validation with the Adomian decomposition method (ADM) is included. The influence of selected thermal (Biot number, Prandtl number), viscoelastic hydrodynamic (Deborah relaxation number), Schmidt number, magnetic parameter and chemical reaction parameters, on velocity, temperature and concentration distributions are plotted for fixed values of geometric (stretching rate, obliqueness) and thermal relaxation parameter. Wall heat transfer rate (local heat flux) and wall species transfer rate (local mass flux) are also computed and it is observed that local mass flux increases with strength of heterogeneous reactions whereas it decreases with strength of homogeneous reactions. The results provide interesting insights into certain nuclear reactor transport phenomena and furthermore a benchmark for more general CFD simulations

    Waste management and business sustainability performance: moderating role of organisation age

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    The chemical manufacturing sector in Malaysia is among the industries that actively pursue sustainable practices. Waste management aids personnel in upholding the principles of sustainability within a company, while simultaneously fulfilling industrial requirements. This study investigates the impact of waste management practises on business sustainability performance, with organisation age serving as a moderating factor. In the country of Malaysia, a total of 366 chemical manufacturing enterprises were identified for the purpose of this study. The researchers employed a stratified random sampling technique to choose a representative sample from this population. A Partial Least Squares (PLS) analysis was conducted on a sample of 130 questionnaires that were completed. The data indicate that there is no relationship between the age of an organisation and there is an improvement of business sustainability through waste management. In order to ensure sustainability, chemical manufacturers must incorporate effective waste management practices. Incorporation into organisational strategies is crucial. This study was anticipated to provide assistance to chemical manufacturers in selecting environmentally conscious practices that align with their business sustainability performance objectives

    Resilience and sustainability in tourism-forestry systems through risk management framework: review and concept

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    Objective: This study aims to explore and enhance the tourism-forestry risk management in research and industry practice. By integrating the concept of resilience and sustainability into risk management practices, this research addresses the multifaceted challenges faced by the forest-tourism field and promotes its long-term viability. Methods: The study comprised of three stages. Firstly, it employs the scoping review technique in the Scopus database system to seek for research gaps related to the objective of the study. Secondly, the study continues with conceptual analysis from Malaysian context particularly on the industrial avenue to assess the current state of risk management practices. Final stage is to propose a tourism-forestry risk management framework for the tourism industry in Malaysia. This study evaluates the effectiveness of existing risk management strategies and identifies gaps and opportunities for improvement by analysing publicly available data from researchers, various stakeholders such as government agencies, industry professionals, and local communities. Results: The findings contribute to the development of Risk Management Tourism-Forestry Framework (RTFF) for enhancing resilience and sustainability in tourism-forestry systems not limited to Malaysia but also for other nations. Moreover, the research outcomes provide valuable insights for the researchers on the knowledge gaps that should be filled. Furthermore, this study provides great lessons learned for all countries with similar socio-economic and environmental contexts towards the application of a risk management framework in their region. Finally, the proposed SDG-oriented risk management framework of RTFF offers a holistic and integrated approach, taking into account social, economic, and environmental dimensions, and provides a roadmap for fostering resilience and sustainability in the face of evolving challenges. Conclusion: This study aims to improve the literature reviews on resilience and sustainability in tourism-forestry that are related to risk management issues. The manuscript addresses the multifaceted challenges faced by the tourism-forestry field and promotes its long-term viability by incorporating the concept of sustainable development goals into risk management practises. Elements of tourism-forestry in the state of the art in the literature as well as in practice not to mention the development of the framework, in which no other study has adopted the same methodology, thus proving the novelty of the study

    Empowering higher education: the tech advantage in work coordination and risk management for financial growth

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    This study examined the relationship of work coordination and Enterprise Risk Management on financial performance in Malaysian public higher education (PHEs). It addresses the gaps on how work coordination and ERM could mitigate financial challenges such as dependence on tuition fees and limited government funding. The responses from 350 key informants across 20 Malaysian PHEs were analyzed using SEM analysis. The findings reveal that work coordination significantly enhances ERM implementation, and ERM implementation positively influence the financial performance, ERM also act as a mediator variable, which has a greater effect on financial performance through work coordination. The findings support the strategic role of ERM in facilitating links between organizational capabilities and financial sustainability. It thus practically recommends increasing capacity through governance structures, investing in digital tools for risk management, and engaging leaders to improve ERM effectiveness. Theoretically, this study extends the Resource-Based View, placing ERM as that critical resource that would turn coordinated efforts into measurable financial outcomes. This study closes the literature gap in risk management in higher education by integrating work coordination and ERM within a comprehensive model of financial sustainability that has pragmatic implications for policymakers and leaders of institutions in strengthening resilience within resource-constrained educational contexts

    ANALISIS SWOT SEBAGAI DASAR DALAM MERANCANG STRATEGI PENGEMBANGAN HOTEL SYARIAH

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    ABSTRAK Penelitian ini memiliki latar belakang pengembangan strategi hotel khususnya sebagai dasar dalam upaya untuk merancang, mengembangkan dan membangun keunggulan sumber daya dan kapabilitas perusahaan. Penelitian ini bertujuan untuk mengetahui bagaimana peranan analisis SWOT, faktor internal dan faktor eksternal pada Hotel Homestay 82 Syariah. Penelitian ini menggunakan jenis penelitian Kualitatif dengan memerlukan data menggunakan metode wawancara, dokumentasi, observasi, dan teknik analisa data. Dari penelitian ini di peroleh hasil bahwa Terdapat empat alternatif strategi yang dapat diterapkan Hotel Homestay 82 Syariah Palembang sehubungan dengan perkembangan bisnis dan perubahan kondisi pasar yang terjadi berdasarkan faktor�faktor internal dan faktor-faktor eksternal Hotel Homestay 82 Syariah Palembang. Dari empat strategi tersebut (SO,WO,ST,WT) digunakan untuk diterapkan dalam pengembangan strategi yang dapat disarankan pada manajemen Hotel Homestay 82 Syariah Palembang

    Issues of human resource in Malaysian palm oil industry

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    The sustainability of industries is a crucial goal for many sectors in Malaysia, including the palm oil industry. Numerous industries, particularly the palm oil industry, aim to achieve sustainable businesses through efficient and effective human resource management practices. However, it can be observed that there are several issues of human resource that have acted as barriers to achieving sustainability in this industry. Among the primary issues are hazardous work conditions, labor shortages, migrant workers, low wages, human rights concerns, inadequate training and agricultural skills, and the exploitation of child labor. Discussions about these issues are essential to provide current insights to the public and all parties involved directly or indirectly in the industry. Therefore, appropriate measures should be taken by all stakeholders with a sense of responsibility to address these concerns. It is hoped that by addressing these issues, the Malaysian palm oil industry can move closer to achieving industrial sustainability, especially in the realm of social sustainability, and indirectly contribute to the nation's economy

    Predicting Malaysian university performance through intranet quality: a review on mediating role of enterprise risk management

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    There is a limited study that investigate the impact of intranet quality (IQ) and enterprise risk management (ERM) towards performance of Malaysian university. Therefore, the purpose of this study is to predict Malaysian university performance through IQ by reviewing the ERM as a mediator. The results of this study demonstrate that intranet quality and ERM contribute to improving the Malaysian university performance. Malaysian university performance includes the income generated from research projects, consultancies, government and private funding, commercialization and fees from program offered. Within the research fields of IQ, ERM, and Malaysian university performance, this study proposes a conceptual model that was created based on findings of a literature review. By linking the IQ to ERM in order to boost university performance, this work enriches the body of existing theories. This study presents a model where IQ positively affects university performance; and ERM mediates the relationship between IQ and university performance. This study considers IQ and ERM as an important attribute of university, thus may have significant implications for practitioners in university to implement ERM in their organization. The conceptual model presented in this study could be helpful to risk practitioners and higher education who are considering implementing ERM in their institutions to improve performance. This study provides new perspectives through examining the relationship between IQ and ERM towards Malaysian university performance

    Strengthening the university-maritime industry collaborations (UMICS): technology issues

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    In management practise and research, the university-maritime industry collaborations (UMICs) have grown in significance. This trend is reinforced by the necessity for innovation in the current industry environment and the desire of policymakers to commercialise knowledge from academia. Much less is known about these collaborations, although significant research efforts have been made to identify the success factors for these collaborations. Therefore, the aim of this study is to identify and explore the key factors that strengthen UMICs and propose a framework to enhance collaboration, so that a research agenda for the future will be developed based on an assessment of the existing literature. This study adopted a method of systematic literature review using published and unpublished theoretical literature to conduct analysis using five research databases in order to propose a framework aimed at identifying the key factors to strengthen UMICs. The findings of this study concluded that effective communication, trust, and adequate fund resources are essential for UMICs to succeed. Open communication channels, mutual trust, and shared vision can help build strong partnerships, while adequate funding can support research and development of new technologies, practices, and solutions. Based on previous research, none of them treated combined fund resources, effective communication, and trust as an independent variables towards UMICs relationship specifically. Hence, this study fills the gap by proposing a framework to test the relationship between fund resources, effective communication, and trust towards UMICs. Thus, the proposed framework can be used as a benchmark to strengthen UMICs in the future. This study also will encourage the managers in the maritime industry to drive innovation, establish strategic collaborations, actively involve stakeholders, and foster innovation and economic growth in the maritime industry to strengthen UMICs. The existing limited body of knowledge and literature will also benefit from this study

    Analysis of the Impact of Propanol-Gasoline Blends on Lubricant Oil Degradation and Spark-Ignition Engine Characteristics

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    Alcoholic fuels have recently come to light as a sustainable source for powering today’s vehicles. Various studies have investigated the effects of alcoholic fuels on engine efficiency and emission characteristics. However, scarce literature is available for their effects on lubricant. Therefore, propanol-gasoline fuel mixtures, with concentrations of 9% (P9) and 18% (P18) propanol, were made to compare their engine characteristics and lubricating oil condition with that of pure gasoline (0 percent propanol (P0)). To determine the rate of deterioration, the characteristics of the lubricating oil were evaluated after 100 h of engine operation, as suggested by the manufacturer. When compared with unused lube oil, P18 showed reductions in flash point temperature and kinematic viscosity of 14% and 36%, respectively, at 100 °C. For P18, which contains Fe (27 PPM), Al (11 PPM), and Cu (14 PPM), the highest wear element concentrations in the lubricating oil were found. The moisture in the degraded oil was well within the allowable limit for the three fuel mixtures. With the increase in propanol percentage in the propanol-gasoline blend, the engine performance was increased. Compared to P9 and P0, P18 had the partially unburned emissions
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