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In semiarid and arid Tunisia, water quality and agricultural practices are the major contributing factors to the degradation of soil resources threatening the sustainability of irrigation systems and agricultural productivity. Nowadays, about 50% of the total irrigated areas in Tunisia are considered at high risk for salinization. The aim of this thesis was to study soil management and salinity re
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Particle image velocimetry measurements are performed in a channel with periodic ribs on one wall. We investigate the flow around two different rib configurations: solid and perforated ribs with a slit. The ribs obstruct the channel by 20% of its height and are arranged 10 rib heights apart. For the perforated ribs, the slit height is 20% of the rib height, and the open-area ratio is 16%. We discu
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The paper analyses the permit process for Swedish wind power development in terms of two paradigms of spatial planning and environmental management, and makes a comparison with the Swedish 3G mobile phone infrastructure development. Swedish Parliament has set a goal of 10 TWh annually wind electricity for 2015, and the Swedish Energy Agency has proposed 30 TWh from wind power by 2020. The present
This thesis includes one introductory chapter and three independent papers. The first paper adds to the broad literature regarding the effect of alcohol consumption on educational attainment. Given that no consensus exists in the literature regarding this paper adds to the literature by analyzing the effect of alcohol consumption on educational attainment using a life cycle approach. In addition
