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    14640 research outputs found

    Developing Sustainable Tourism in Tanzania: Perspective from Wine Stakeholders

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    This chapter underscores the current business environment for wine tourism in Tanzania and identifies opportunities for its establishment using the stakeholder theory based on data from wine stakeholders.The study’s identification of landscape, vineyards, cultural heritage, and wine festivals as potential wine tourism attractions provides valuable insights for the development of wine tourism in Tanzania. It is recommended that policymakers and tourism stakeholders in Tanzania focus on leveraging these products to establish a thriving wine tourism industry. This can be achieved through targeted marketing campaigns, investment in infrastructure and facilities, and the implementation of sustainable practices that preserve and enhancethe natural and cultural resources of the country. The results of this study could be significant not only for Tanzania but also for other emerging countries looking to establish and develop their wine tourism industry

    Surface Corrosion Inhibition of Mild Steel in an Acidic Environment by an Anthelmintic Drug: Experimental, RSM, DFT and MD Simulation Studies

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    Gravimetric, electrochemical, surface investigation, RSM and theoretical computational studies, using DFT and MD, were employed to investigate Ecorr inhibition of MS surfaces in 0.5 M H2SO4, by a worm expelling drug (Wormin® MBZ). The results from computational and RSM optimization and experimental methodologies were all in good accord. After 24 h, IE(%) of 1.5 g/L MBZ on MS corrosion, calculated from WL data, was 96.610%. Maximum IE(%) of 1.0 g MBZ was 96.903% (303 K) and 99.998% (333 K). PDP confirmed MBZ mixed nature of adsorption. The impact of the inhibitor C and IT of MS on IE(%) of MBZ was revealed by statistical evaluation and optimization, using Design Expert software package (Stat-Ease). The optimized IE(%) of 96.6103% was obtained with the inhibitor C of 1.061 g/L, at MS 48.58 h IT. On the MS surface, MBZ behaved according to Langmuir’s adsorption isotherm. MD showed that MBZ had an Einteraction of -536.33 and -694.53 kcal/mol, at 303 and 333 K, respectively. Negative Einteraction forecasts confirmed MBZ-MS surface interaction capability, which reinforced the experimental investigations IE(%) findings

    Development of eco-friendly brake pads using industrial and agro-waste materials

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    There has been an increase in research over the past decades into the use of environmentally friendly materials in brake pads, such as natural fibres. This is due to the possibility that natural fibbers could serve as an alternative to the noxious asbestos materials in tribological applications like brake pads. As a result, utilizing the compacting mould technique, an asbestos-free friction material was developed using agricultural waste (coconut shell and oil bean stalk) as a filler element, alongside aluminium dross, metal chip industrial wastes and carbon black. The filler material considered had particles as small as 300 μm, with epoxy resin serving as the binding agent. Using these waste materials can help reduce environmental pollution and the risk to animal and plant life (Preeti et al., Pharma Innov J 7:94–102, 2018; Sajib, A Study on the effects of environmental pollution on human life in the riverbank area of Barishal City Corporation (Kirtankhola River), 2021). This research aimed to replace asbestos in brake pads due to its carcinogenic nature, reducing the health risks associated with manufacturing and using these brake pads. The brake pad materials were cast and produced using square wooden moulds. Four samples were created, comprising the same mixing ratio but varying in reinforcement fibre and particle size, with epoxy resin used as the matrix. Various tests were conducted on these samples, including a water absorption test, specific gravity test, compressive strength test, hardness test, thermal conductivity, SEM and EDX. The developed brake pads underwent microscopic characterization and structural examination using a scanning electron microscope (SEM) fitted with energy-dispersive X-ray spectroscopy (EDX) for elemental characterization. Thermal conductivity was obtained using automated Lee’s Disc apparatus. Comprehensive strength analysis was conducted using a universal testing machine (UTM). The specific gravity tests yielded values for the developed composites in the range of 1.136–1.257, while the commercial brake pad had a value of 2.081, indicating that the produced samples were lighter and less dense. The water absorptivity of the developed samples ranged from 0.95 to 2.174%, while the commercial brake pad had a value of 1.031%. For the hardness tests, at three different loads, the developed values ranged from 16.4HV3 to 19.4 HV3; 26.4HV30 to 28.7HV30; and 25.5HV100 to 29.6HV100, while the commercial brake pad had values of 16.5HV3, 28.4HV30 and 28.2HV100. Sample C (212 μm: coconut shell powder) exhibited the most desirable characteristics with five values: water absorptivity 0.95, compressive strength 120.5 MPa, hardness value 29.6 HV100, wear resistance 0.099 mm/mm3, specific wear rate 1.00 mm3/ Nm. The outstanding values were attributed to the chemical composition, particle sizes and good interfacial bonding of the microstructure. The developed brake pads performed favourably when compared with the existing commercial brake pads. The chemical tests showed that the natural fibres bonded well with the epoxy matrix. The thermal and mechanical tests yielded comparable results with the values obtained from the commercial brake pads. Therefore, the developed materials for brake pads can be considered suitable replacements for asbestos brake pads

    TECHNOLOGICAL INNOVATION AND SUSTAINABILITY PRACTICE IN THE EDUCATION SECTOR: A REVIEW OF ONLINE LEARNING AND GAMIFICATION STRATEGIES FOR ENHANCING STUDENT ENGAGEMENT AND LEARNING OUTCOMES

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    This paper delves into the dynamic realms of online learning and gamification, pivotal innovations within the education sector, and aims to foster sustainability practices and improve student engagement and learning outcomes. It embarks on a comprehensive journey through the literature, meticulously examining the definitions, merits, obstacles, and exemplars of these transformative approaches. Online learning, encompassing the digital delivery of educational content via diverse platforms such as websites, mobile apps, and learning management systems, has emerged as a prime player in reshaping pedagogical landscapes. Simultaneously, gamification, hinging on the strategic infusion of game elements such as points, badges, leaderboards, and feedback into educational contexts, emerges as a potent motivator and engagement catalyst. However, this paper also casts a discerning eye on the hurdles and constraints that accompany adopting these methodologies. By synthesizing the collective wisdom of prior research, this paper unveils the novel possibilities and improvements that online learning and gamification bring to education, elucidating their role in advancing sustainability goals and enhancing the educational experience. The synthesis of existing knowledge leads to the formulation of valuable recommendations tailored to educators and researchers aspiring to integrate online learning and gamification strategies into their pedagogical toolbox, invigorating learning environments and propelling education toward a more sustainable and engaging future

    HIGHER FRACTIONAL ORDER p-LAPLACIAN BOUNDARY VALUE PROBLEM AT RESONANCE ON AN UNBOUNDED DOMAIN

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    In this work, we use the Ge and Ren extension of Mawhin’s coincidence degree theory to investigate the solvability of the p-Laplacian fractional order boundary value problem of the form (f ( a ( )))¢ p D0+x t ( , ( ), ( ), ( ), ( ), 0 ( )), (0, ), 1 0 2 0 3 0 = a Î +¥ + a- + a- + a- f t x t D + x t D

    Petrophysical analysis to determine the hydrocarbon prospectivity of sands in AA field, Niger Delta

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    Petrophysical analysis is a crucial process in the oil and gas industry. It entails the analysis and interpretation of well logs, fluid samples or core smaples to understand the behaviour of the embedded reservoirs in the subsurface. Three well logs from AA field were provided for this study, but two well data were finally loaded to the workstation due to absence of key well logs (such as gamma ray and density logs) from the third well. The quality control check of the data was done prior to the uploading of data. Delineation of lithologies and identification of hydrocarbon reservoirs were done; the identified reservoirs were correlated across the two wells; and the petrophysical evaluation (such as estimations of shale volume, porosity, permeability and water/hydrocarbon saturation) of the three pay zones (that is, Sand A, B and C) in AA field were done. The porosity of Sands A, B and C varied from 0.27 to 0.28, 0.24 to 0.30 and 0.27. The permeability of Sands A, B and C varied from 1012 to 1314 md, 884 to 1013 md and 692 to 892 md. Meanwhile, the hydrocarbon saturation for Sands A, B and C varied from 1 to 89%, 45 to 80% and 79 to 80%, respectively. It can be concluded that the order of hydrocarbon prospectivity of the reservoir sands correlated across Well AA-1 and Well AA-2 is Sand C > Sand B > Sand A

    Microbial biotechnology for bioenergy: general overviews

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    Bioenergy technologies are environment-friendly, renewable, and a clean way of powering the global community. Bioenergy technology is an innovation that improves the quality of life by simply reducing water and air contamination; this also mitigates energy dependence through creation of renewable resources locally. Bioenergy sources include wind, water, geothermal, nuclear power, solar, and natural gases. The most interesting and important part of bioenergy is the environmental benefits as part of a global energy future, which are aided by microorganisms. The future of bioenergy, however, seems bright because recent global information in this field proved that more renewable energy capacity has been fixed globally than new fossil fuel and nuclear capacity combined. As the global population progressively increases, there is an everincreasing demand for clean energy. The only safe answer to this is sustainable energy, which will protect the earth from climate change and make it a good habitat for all living organisms. This chapter provides a general overview to microbial biotechnology for bioenergy, sources, and challenges of bioenergy, role of microorganisms in bioenergy generation, innovations in bioenergy, and the environmental conservation of bioenergy

    Application of Nanochitosan in Fish Detoxification/Nano-Based Depuration

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    The chapter explores the application of nanochitosan in detoxification and depuration of captive fish towards attainment of Sustainable Development Goal 14. The application of nanochitosan in fish detoxification, often referred to as nano-based depuration, represents a cutting-edge and sustainable approach to addressing the challenges posed by environmental contaminants in aquaculture. This innovative method harnesses the unique properties of nanochitosan, a nanoscale derivative of chitosan, to capture, immobilize, and gradually release contaminants in aquatic environments. Nanochitosan-based fish detoxification or nano-depuration represents a forward-looking approach to ensuring the safety and sustainability of aquaculture practices. This method leverages nanochitosan’s unique properties, such as adsorption capacity and controlled release, to reduce the bioavailability of contaminants, protect fish health, and enhance the quality of seafood products. It aligns with the principles of environmental responsibility and offers the flexibility to address diverse contaminant profiles, making it a promising tool in the field of aquaculture and environmental management

    FINISHING MATERIALS AND USERS’ SPATIAL EXPERIENCE IN THE DESIGN OF A CULTURAL CENTRE IN LAGOS STATE

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    In contemporary architectural discourse, the utilization of materials to enhance users' spatial experience holds significant importance, particularly in the development of public spaces. This study explored the role of materials in enhancing users' spatial experience in the design of a Cultural Centre in Lagos, Nigeria, with a focus on promoting environmental sustainability. Through a comprehensive examination of finishing materials commonly employed in building design, the study aimed to identify their impact on spatial experiences and users' satisfaction levels. The methodology adopted a mixed-used method which involved a combination of literature review, case studies of selected cultural centres in Lagos, and user surveys to gather qualitative and quantitative data. The analysis was conducted to assess the extent of material utilization, users' satisfaction, and the overall enhancement of spatial experiences. The sample size comprised a diverse range of cultural centres within Lagos, ensuring a holistic understanding of material applications. Findings revealed the significance of materials in shaping users’ spatial experiences and suggested strategies for promoting environmental sustainability through material selection and design practices. The recommendations derived from this study emphasized a user-centred design approach that prioritizes the satisfaction and well-being of users by selecting materials that enhance spatial experiences and contribute to a sense of comfort, functionality, and aesthetic appeal

    Health, Technology And Built Environment Nexus: A Systematic Literature Review

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    Research into health, particularly social and psychological health, is crucial. Ultimately, an in-depth understanding of social and psychological health will more than promote well-being. Technology research is indispensable, particularly concerning health and the built environment, given the need to create holistic and supportive frameworks for well-being. Moreover, because literature reviews establish the foundation for academic inquiries, they provide valuable overviews for foresight into grey research areas, particularly multi-disciplinary research like health technology and the built environment. Hence, this study aims to discover the existing themes on health, technology, and built-environment nexus subjects while revealing the grey areas and suggesting proactive areas for future research. The objectives drove this aim to: 1. investigate the implications of technology for the social and psychological dimensions of health; 2. uncover the likelihood of a nexus between health, technology, and the built environment; and 3. highlight new research perspectives for the concluding seven years of the SDGs (2024–2030). The review results highlighted ten themes around which a nexus exists between health, technology, and the built environment; they also pointed out new research perspectives for the next seven years (up to 2023)

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