Repozitorij Univerze v Novi Gorici

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Tokunbo Laotan-Brown, 2019, doktorska disertacija

Opis: In essence, a qualitative study revealing what the inhabitants reflect as a deep and personal relationship with and within the region, which contributes significantly to their sense of emotional security and self identity. This includes a strong conservation-orientated attitude with regard to the natural rural character of a clan, tribe or unbounded region using linguistic families, especially in the inner core. It acknowledges the journey though time of the dwellers, changes in requirements in a natural way. The principle behind this thesis is to identify the regional, cultural and environmental demands of where and how a fractal spatial function can be observed as well as how a community can be organised to maintain and preserve its culture in a natural way. Thus, responding to specific characteristics of the local environment and climatic conditions. This lifelong interaction between the cognitive and physical realms has existed overtime. During the evolution of values inhabitants adapted form and materials to the conditions of nature; working with natural forms and climatic cycles rather than considering forces as obstacles to overcome has hermeneutic and practical values; used by intentional makers. The cultural identity in the inhabitant made the home, and then the process of home-making ‘made’ the inhabitant; a reciprocal reward. This will include their connection to the culture, region and environment while proposing a self-organizational solution. The future of conserving African tangible and intangible values, need to take lessons from the past into the future through present resolutions while documenting what maybe an interrupted progression. To achieve the above, I modified an approach using cultural fractal organizational approach as a basis for defining; 1) The structure of research framework using computer simulations and thus establishing linkages between space, region and communal activities. 2) Using African linguistic families (Niger-Congo: Yoruba), as a distinct way of documenting within the context of co-existing social and discursive practices. 3) By generating a background in ethnographic and sensory archaeological data on Yoruba regional cities, focusing on the fractal structure of settlements in relation to the social activities that take place in and around them.
Najdeno v: ključnih besedah
Povzetek najdenega: ... Fractals, Self Similarity, Conservation, Self Organizational Approach, Cultural...
Ključne besede: Fractals, Self Similarity, Conservation, Self Organizational Approach, Cultural Heritage, Spatial Patterns, IFA, Oikos, Cultural Landscapes, Yoruba Cities, Circularity.
Objavljeno: 18.01.2019; Ogledov: 2745; Prenosov: 131
.pdf Polno besedilo (24,92 MB)

Thermal Lensing of Multi-Walled Carbon Nanotube Solutions as Heat-Transfer Nanofluids

Opis: This paper unwraps nanofluids’ particle dynamics with multi-walled carbon nanotubes (MWCNTs) in base fluids such as acetone, water, and ethylene glycol. Having confirmed the morphology and structure of the MWCNTs by field emission scanning electron microscopy, X-ray diffraction, and Raman spectroscopic analyses, the nanofluids are prepared in three different concentrations. The nonzero absorbance at the laser wavelength, revealed through the UV−visible spectrum, makes the thermal diffusivity study of the sample by the sensitive nondestructive single beam thermal lens (TL) technique possible. The TL signal analysis by time series and fractal techniques divulges the complex particle dynamics, through phase portrait, sample entropy, fractal dimension, and Hurst exponent. The study unveils the effect of the amount of nanoparticles and the viscosity of the medium on thermal diffusivity and particle dynamics. The observed inverse relation between thermal diffusivity and viscosity is in good agreement with the Sankar−Swapna model. The complexity of particle dynamics in MWCNT nanofluids reflected through sample entropy, and fractal dimension shows an inverse relation to the base fluid’s viscosity. This paper investigates the role of viscosity of the base fluid on particle dynamics and thermal diffusivity of the nanofluid to explore its applicability in various thermal systems, thereby suggesting a method to tune the sample entropy through proper selection of base fluid.
Najdeno v: ključnih besedah
Povzetek najdenega: ...MWCNT, thermal lens, fractals, nonlinear time series, phase portrait, sample entropy...
Ključne besede: MWCNT, thermal lens, fractals, nonlinear time series, phase portrait, sample entropy
Objavljeno: 28.06.2022; Ogledov: 23; Prenosov: 0
.pdf Polno besedilo (3,59 MB)

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