164 uppsatser · sida 5 av 11
… with precipitation, depth and other measured parameters. Geochemical modelling using the computer code PHREEQC has also been conducted. The waste of the minefields at Gladhammar is constituted of waste rock, slag and tailings. Arsenic, cobalt, copper, lead and zinc are the …
En modelljämförelse
This thesis compares different methods for risk assessment of a creosote contaminated site in Vansbro, Dalarna. In a complementary study the importance of using representative data for calibration and validation of stationary groundwater models is discussed. The time dependency …
This thesis discusses model based tracking of radar echoes in tanks with liquid content. The errors in the measurements are not always random in these cases, and the interference that occurs when nearby echoes moves in relation to each other makes tracking difficult. The …
This master thesis deals with problems in the arc length control in Pulsed MIG/MAG Welding. The main problem is that it is not possible to measure the arc length. In the present solution the voltage over both the electrode and the arc represents the arc length. To improve the …
Tillämpning av modellverktygen MIKE SHE WET och MIKE 21
… water pond and a downstream constructed wetland. Simulations in two different modelling programs, MIKE SHE WET and MIKE 21 have been performed. MIKE SHE WET has never been used in practical work. The purpose of the program is to describe chemical and biological processes in …
The purpose of this thesis work was to develop an automatic fault detection system for surveillance of bearing temperature in hydropower turbines. The parameters used except the bearing temperature were cooling water temperature and cooling water flow. A simple static model …
… collection, since the rest of the model only considers choises regarding what modelling- and programming tools to be used. When requirement collection is in focus one is faced with the choice of several methods to use in this purpose. In this research user-centric participation …
… av existerande prognoser som modellerats av SWECLIM (Swedish Regional Climate Modelling Programme). Avslutningsvis gjordes en profiliv inmätning i det studerade området för att kunna identifiera kritiska sektioner längs kusten samt för att kunna uppskatta vilken inverkan havets …
… for choosing which financial ratios to incorporate in the statistical modelling. The model was developed using financial data from U.S. companies and incorporates a unique time-weighting technique. CRITA’s accuracy was tested by applying the model to a number of default and …
… healthy cows were analysed using mixed least-squares multivariable regression modelling. A random effect for cow identity was included. The principal explanatory variable was disease month, coded as -1 the month before diagnosis, as 0 for the same month as diagnosis, as 1 or 2 …
… Genom användandet av modellerings- och simuleringsprogrammet Dymola (Dynamic Modelling Laboratory) med dess olika komponentbibliotek har flera delmodeller skapats för stötdämpningssystemet. Dessa modeller är baserade på fysikaliska relationer och de sätts sedan samman till en …
Over an extended period of time there have been plans to establish a shared facility in Lennheden to extract groundwater from the Badelunda esker to provide drinking water for the cities of Borlänge and Falun. The city of Falun is dissatisfied with the quality of its drinking …
Design för optimal hydrologi och kväverening
The euthropthication of the Baltic Sea is a threat that is beginning to be taken seriously by the governments concerned. In Sweden, regulations concerning the allowed nitrogen (N) concentration in the effluent water from wastewater treatment plants are being tightened up. The …
A distributed hydrological rainfall-runoff model has been developed using a GIS integrated with a dynamic programming module (PCRaster). The model has been developed within the framework of the EU-project TWINBAS at IVL Swedish Environmental Research Institute, and is intended …
Detta projekt har producerats i samarbete med Abu Garcia i Svängsta, Blekinge. Vårat projekt är en interaktiv produkt presentation gjord i flash med inslag av 3d, video och ljud. Våran tanke är att användaren ska kunna se hur en Ambassadeur Record fiskerulle ser ut både på …
