Sökning: "Per Erik Jansson"
Visar resultat 11 - 15 av 28 avhandlingar innehållade orden Per Erik Jansson.
11. Water and Carbon Balance Modeling: Methods of Uncertainty Analysis
Sammanfattning : How do additional data of the same and/or different type contribute to reducing model parameter and predictive uncertainties? This was the question addressed with two models – the HBV hydrological water balance model and the ICBM soil carbon balance model – that were used to investigate the usefulness of the Generalized Likelihood Uncertainty Estimation (GLUE) method for calibrations and uncertainty analyses. The GLUE method is based on threshold screening of Monte Carlo simulations using so-called informal likelihood measures and subjective acceptance criterion. LÄS MER
12. Irrigation with saline water using low-cost drip-irrigation systems in sub-Saharan Africa
Sammanfattning : In the scope of future population support, agricultural productivity, in particular in sub-Saharan Africa, has to increase drastically to meet the UN’s millennium development goals of eradicating extreme poverty and hunger by 2015. Water availability in the root-zone limits crop production in large parts of the developing world. LÄS MER
13. Monitoring transport and fate of de-icing salt in the roadside environment : Modelling and field measurements
Sammanfattning : Roads and traffic are a major non-point source of pollutants and may have severe impacts on surface water, groundwater, soil and vegetation. In cold climates, de-icing salt is one such pollutant that may cause increased chloride concentrations and induce other effects on the environment. LÄS MER
14. Integrative Approaches in Shotgun Proteomics : From sample preparation to multifaceted data analysis
Sammanfattning : Bottom-up proteomics mass-spectrometry gives an opportunity to shed light on var-ious biological aspects/characteristics such as protein composition, its modifications,interactions, and dynamics. Its applications span a wide range of biological sciencesaiming to eventually answer fundamental disease related questions or evaluate drugperformance and predict adverse effects. LÄS MER
15. Road disasters? Modeling and assessment of Swedish roads within crucial climate conditions
Sammanfattning : An efficient maintenance of roads to ensure high accessibility and durability of the transport capacity requires an understanding of how the hydrological response depends on both the road and the landscape characteristics. New methods and data were used to identify and explain interaction between roads and surrounding environment and their influence on hydrologic responses both in watershed scale and road-section scale. LÄS MER