Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 41 for “"extreme weather conditions"”.
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Resilience of power distribution systems under extreme weather conditions
… distribution systems under the impact of adverse weather, with an emphasis on hurricanes, is studied. This research investigates the effects of failures of utility wood poles on the reliability and resilience of electric distribution systems. The probability model of wood pole failures is used to …
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Bond Strength of Adhered Manufactured Thin Stone/Brick Masonry Veneer Units to Setting Bed Mortar at Different Temperatures and Different Cycles of Freeze-Thaw
… of ATMV. In the Canadian climate, exposure to extreme weather conditions like very low temperatures and freeze-thaw cycles are common and may be a cause of bond deterioration and failures. Therefore, it is important to study the effects of exposure to extreme weather conditions on the bond …
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Towards an Effective Climate Change Regime in South Africa: Policy and Legal Developments
… icecaps, rising sea levels, as well as more extreme weather conditions including droughts, tropical cyclone activity and heavy precipitation. These impacts have been caused by a drastic increase in global levels of greenhouse gas emissions 'since 1750 as a result of human activities' and a …
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VERTICAL REPLENISHMENT BY UNMANNED AERIAL VEHICLES.
… risks for pilots and ground crews especially in extreme weather conditions. Thus, the development of an unmanned helicopter for vertical replenishment is presented in this thesis. The thesis covers the helicopter platform construction, dynamic modeling of the helicopter, automatic controller …
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Robust curved road boundary identification using hierarchical clustering.
… dominant road boundary in images exhibiting extreme weather conditions, low visibility and poor lighting. The proposed method constructs a ranked list of possible road boundaries through agglomerative hierarchical clustering of edge segments. Each node in the hierarchical clustering is a …
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Precursors to atmospheric blocking events
… from their normal eastward progression, causing extreme weather conditions for the duration of the blocking event. Blocking precursors, as indicators of meridional flow preceding the onset of strong Atlantic blocking episodes, have been identified by using a modified version of the Tibaldi and …
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System architecture design of a robust heating system
… outages are exponentially increasing because extreme weather conditions are occurring more frequently. In addition, the duration of the power outages are increasing. Unfortunately, the will to expand or convert the current electric grid is not there. The objective of this thesis is to design a …
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Empirical essays on finance and development
… by the observation that exposure to the risk of extreme weather conditions may constrain investment by subsistence farmers and lead to inefficient production choices, the first chapter evaluates whether insuring farmers against such risks alters resource allocation decisions. In particular I …
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“It is what it is”: an ethnography of women's experience of drought in Madziva, Zimbabwe
Bad weather conditions such as drought have had detrimental effects on the agrarian life of the people in Madziva rural area, Zimbabwe. Due to the unfavorable weather conditions in this area, poverty and unemployment, most men migrated and continue to migrate to the urban areas in search of greener …
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Dynamic thermal response of buildings resulting from heating and cooling interruptions
… response during unusual operating and extreme weather conditions. The analytical model was validated using published experimental data and numerical results from well-known computer codes. The effect of including radiation heat transfer between interior surfaces, using the Mean …
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A landscape in transition : architecture for an extreme climatic condition : accommodating the informal within a flood-prone area
… issue at hand. The nature of the problem and the extreme conditions of flooding will also be explored. There are indiations that South A frica's climate is becoming increasingly variable (Napier & Rubin; 2002). Climate change increases the uncertainty fa.ced by vulnerable communities through a …
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Darbo santykių transporto šakoje ypatumai /
… carriage of freight or passengers, working in extreme weather conditions, at nights, etc. This master thesis examines a concept of the transport sector, and the law applicable to labour relations in this sector, especially focusing on questions regarding recruitment, employment contracts as …
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Exploring beneficiary perceptions about the use of refurbished container classrooms for early childhood development in vulnerable communities in the Westen Cape
… structures to enhance durability and withstand extreme weather conditions;; and iii. To the Department of Social Development to review its funding strategies and to consider investing in infrastructure in low socio-economic communities as a way of ensuring availability of acceptable standards of …
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Analysis of laminated architectural glazing subjected to combined wind and debris impact loading
… recent years and is found to be effective during extreme weather conditions like hurricane. Laminated glass is composed of two glass layers with a polymer as an interlayer. The main objective of this work involves studying the stress response, failure and damage analysis of rectangular laminated …
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Extreme rainfall events over the Pongola-Mtamvuna Water Management Area of South Africa
… position, and local sea-surface temperatures. Extreme weather conditions such as droughts and floods are not uncommon and can result in both positive and negative socio-economic impacts. The Pongola-Mtamvuna Water Management Area (PM) located over north-eastern South Africa consists of …
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Validation of the ITU-R P series radio wave propagation model for millimetre wave V-Band (60GHz) line-of-sight point-to-point short distance link
… are highly susceptible to atmospheric conditions and therefore a more detailed understanding of such behaviour is required. This research presents results from a one-year trial of a 60GHz short-range point-to-point link test between two building rooftops at the University of Salford, …
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Causal factors and consequences of mixed-severity fire in Black Hills ponderosa pine forests
… and topography on burn severity despite the extreme weather conditions during the Jasper fire. Relative density, tree size, and slope, ranked in order of importance, were influential in predicting burn severity. Relative density < 40 % and slope < 18 % represent critical thresholds where low …
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An empirical study on the building blocks of resilience in British food supply chains
… that the changing climate has resulted in more extreme weather conditions than before. Simultaneously, the world has become more interconnected, and the population continues to grow and get richer, thus demand for food is increasing, whilst natural resources are depleting quickly. Risks due to …
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Dynamics and Control of Very High Altitude Tethered Balloons
… Balloons (VHATBs) under both steady-state and extreme operational conditions. A discretized lumped-parameter model is used to represent the tether. HATBs have a variety of potential applications ranging from telecommunications to solar power harvesting, but none have been practically …
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