10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics 2014
Permanent URI for this collectionhttp://hdl.handle.net/2263/42671
Browse
Recent Submissions
Now showing 1 - 20 of 320
Item Social work support services for unaccompanied refugee children in the City of Tshwane Metro Pretoria(University of Pretoria, 2025-05) Giliome, Corlie; smileyyeukai@gmail.com; Pedzisa, YeukaiGlobally, the migration of unaccompanied refugee children is a growing phenomenon. In South Africa, this trend has necessitated a critical examination of the social work services available to these children and the effectiveness of the interventions. This study explores the experiences of social workers in providing services to this vulnerable population, the barriers they encounter, and their recommendations for improving service delivery. Drawing upon a human rights-based approach, this qualitative research employed semi-structured interviews with eight social workers in Gauteng Province, South Africa, to gather in-depth perspectives on the challenges and successes in supporting unaccompanied refugee children. The findings reveal that unaccompanied refugee children receive a range of social work services, including assessments, basic needs fulfilment, documentation assistance, and psycho-social support. The study also highlights significant barriers hindering effective service provision by social workers, such as challenges related to the documentation of refugee children, the implementation of relevant laws and policies, language differences, limited material resources, systemic limitations within the welfare system, and a perceived lack of specialised experience among some social workers. Despite these barriers, social workers reported positive outcomes in certain cases, alongside instances where services fell short of meeting the complex needs of this population. Social workers interviewed provided suggestions for improvement, emphasising the need for structured and increased collaboration among stakeholders; the integration of refugee children within host communities; and greater government involvement and accountability; provision of training for social workers on refugee issues; and a more effective application of relevant international and national legal frameworks, including the Children’s Act 38 of 2005 and the Refugee Act 130 of 1998. Although the study did not seek the perceptions of the unaccompanied children, and the findings cannot be generalised due to the small sample size, this research contributes to a deeper understanding of the challenges and opportunities in serving unaccompanied refugee children and provides insights for strengthening social work interventions.Item Mitochondrial transfer : ethical, legal and social implications in assisted reproduction(Health and Medical Publishing Group, 2015-08) Reznichenko, A.S.; Huyser, Carin; Pepper, Michael SeanDiseases resulting from mutations in mitochondrial DNA (mtDNA) are inherited by all offspring through the maternal lineage. Multiple organs are severely affected, no preventative treatments are available and most patients experience a poor quality of life or early death. With developments in mitochondrial transfer techniques, hope for preventing transmission of mutated mtDNA onto offspring is emerging. Many ethical issues have been raised regarding such treatments, which involve transfer of nuclear material into donated oocytes with healthy mitochondria, or the introduction of healthy donor mitochondria into affected oocytes. Blastomere, ooplasmic, pronuclear and spindle transfer have been explored. Ethical concerns relate to (a) the alteration of germ line genetics and (b) the dilemma of children inheriting DNA material from three instead of two parents. In contrast to gene therapy, where only the DNA of the treated individual is altered, these techniques involve the introduction of foreign mtDNA into the germ line that will be inherited by all children in downstream generations. Mitochondrial transfer has also been closely associated with reproductive cloning, which is regulated differently worldwide. Children born from these techniques might experience an identity crisis. Although three gametes are needed to produce a healthy embryo in this scenario, the child will inherit all nuclear DNA from the intending parents, while only inheriting mtDNA from the donor. Social and scientific values must be considered when introducing new healthcare technology. Many believe that some assisted reproductive technology techniques go beyond the limits of acceptable medical intervention. But who ultimately decides what is acceptable? We address the ethical and social issues surrounding this emerging new technology, legal developments regarding its clinical introduction in the UK and the USA, the future impact on technique and patient management, and relevant legislation in South Africa.Item Heat transfer in horizontal tubes at supercritical pressures for organic Rankine Cycle applications(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Lazova, M.; Daelman, S.; Kaya, A.; Huisseune, Henk; De Paepe, M.Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item Transient natural convection flow dynamics in a asymmetrically heated vertical channel(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Polidori, G.; Fatnassi, S.; Maad, R. Ben; Beaumont, F.; Fohanno, S.Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item Technical-economic evaluation of a hydroelectric micro-central driven by a solar-powered water storage system for agricultural applications(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Alvaro, F.; Del Carpio, H.; Milón, J.; Braga, S.L.Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item Computational fluid dynamics simulation and turbomachinery code validation of a high pressure ratio radial-inflow turbine(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Odabaeea, M.; Sauretb, E.; Hoomana, K.Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item Parametrical and theoretical design of a Francis turbine runner with the help of computational fluid dynamics(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Ayancik, Fatma; Celebioglu, Kutay; Aradag, SelinPaper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item Experimental study on subcooled nucleate boiling from a single artificial cavity(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Pasquini, ME; Cariteau, B; Josserand, C; Salvatore, PPaper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item Thermal and thermodynamic analysis of a parabolic trough receiver at different concentration ratios and rim angles(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Mwesigye, Aggrey; Le Roux, Willem Gabriel; Bello-Ochende, Tunde; Meyer, Josua P.Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item Effect of Xenon gas and foils on a multi-foil insulation(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Haim, Y; Weiss, Y; Letan, RPaper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item Analysis of thermal mixing via Bejan’s Heatline during natural convection within square cavities with discrete heat sources(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Das, D; Basak, TPaper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item Jet in crossflow: Experiments on the interaction of flow-structure and cooling efficiency(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) de Lange, H.C.Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item Thermodynamic approach on the condensation risk in built environment(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Stanescu, G; Schmid, ALPaper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item Dual-purpose power-desalination plant augmented by thermal energy storage system(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Gude, V.G.; Gadhamshetty, V.; Khandan, Nirmal N.Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item Study of heat and mass recovery process on the performance of adsorption cooling systems(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Chan, KC; Tso, CY; Chao, CYHPaper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item Effect of covering by black polythene sheet and coal powder on nearby surfaces of sand bed solar still: Studying heat and mass transfer(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Tiwari, Anil Kr; Mishra, Dhananjay RPaper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item A study on the auto ignition characteristics of DME-LPG dual fuel in HCCI engine(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Jamsran, N; Lim, OTPaper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item Second law analysis of the flow of two immiscible couple stress fluids in four zones(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Ramana, Murthy J.V.; Srinivas, J.; Sai, K.S.Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item Multi-objective optimization of a low-temperature transcritical organic Rankine cycle for waste heat recovery(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Lecompte, S.; Lazova, M.; Van den Broek, M.; De Paepe, M.Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Item Optimisation of an open rectangular cavity receiver and recuperator used in a small-scale solar thermal Brayton cycle with thermal losses(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014) Le Roux, Willem Gabriel; Bello-Ochende, Tunde; Meyer, Josua P.Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.