169 uppsatser · sida 2 av 12
Vilka faktorer ger elever motivationoch lust att lära matematik?
Drinking water is produced from raw water and is either from groundwater or surface water. This thesis aims to find out if the cleaning process of raw water is sufficiently effective. This is important because consumers are otherwise at risk of waterborne infection caused by …
Elevernas intresse- problem eller resurs?
Drinking water is produced from raw water and is either from groundwater or surface water. This thesis aims to find out if the cleaning process of raw water is sufficiently effective. This is important because consumers are otherwise at risk of waterborne infection caused by …
Matematik och elevmotivation
Drinking water is produced from raw water and is either from groundwater or surface water. This thesis aims to find out if the cleaning process of raw water is sufficiently effective. This is important because consumers are otherwise at risk of waterborne infection caused by …
Utvärdering av åtgärder för förbättrad vattenkvalitet
… the oxygen levels, bottom water is pumped from Brunnsviken causing aerated surface water to flow back into the basin. The objective of this Master’s thesis was to study the change in dissolved oxygen levels due to pumping. Since the question is complex, two areas were chosen to …
… the localities and it was positively related to the water content of the surface sediment in shallow water (0-15 cm, linear regression, F1, 5=14, 43, P=0, 02, R2 = 0, 88), but not with water content of the surface sediment in deep water (15-30 cm). Mean plant depth was not …
Vass, bredkaveldun och gäddnate i Bergviks dagvattendamm
Abstract Surface-water includes different kinds of pollutants from traffic and roads. To prevent these pollutants to reach nearby lakes one can construct surface-water ponds on locations with heavy traffic. At Bergviks shopping centre in Karlstad, two ponds, one smaller and one …
… the water, which can cause large differences in pressure on the top and bottom surfaces of blocks. This pressure difference can be high enough to lift whole blocks. The main factors that affect this kind of scour are the crack pattern of the rock mass, the geometry of the …
… NEDA. The hydraulic model came up with good results when predicting water surface levels. The validation process made from figures of a period with large amplitude in water levels showed that the modelled water level was within ± 0,05 m from the observed water stands. It is a …
Erasteel Kloster AB, Söderfors
… condition in soil and groundwater was assessed as high to very high and in surface waters it was assessed as small. Sensitivity for soil and groundwater was assessed as moderate to high and the Protection value as moderate, for surface waters and sediment the sensitivity was …
Förflyttning av produkt
… The experimental part includes aeration experiments and measurement of surface tension when adding salt in clean and untreated process water. All experiments have been carried out in lab-scale at Karlstad University. The salts used during the study were sodium chloride, lime …
Tillsats av biprodukter i skogsindustriellt avloppsvatten
… The experimental part includes aeration experiments and measurement of surface tension when adding salt in clean and untreated process water. All experiments have been carried out in lab-scale at Karlstad University. The salts used during the study were sodium chloride, lime …
En modelljämförelse
… of stationary groundwater models is discussed. The time dependency between surface water levels and groundwater levels on the site in Vansbro is evaluated by step response analysis. The results show that the groundwater levels reflect only long-term variation in the surface …
… how these methods could be applied to wind turbines of the company Oxel. A surface where the water droplets do not attach might be the basis for a useful method. If no water attaches, no ice could form. To accomplish this a hydrophobic surface is nessesary, for example wax. My …
En undersökning av reningseffekt med avseende på järn och mangan
… to iron andmanganese. The overall goal was to investigate how the parameters surface load,sandfractions, and burden time affect the purifying effect. The expectation is to optimize thedesign and find a demouldning of the filter that gives sufficient purifying with a …
att gestalta praktfulla parker som kan skötas på ett hållbart sätt
… specific climate and place. Another important issue is to make sure that all surfaces are properly built up with protection against weeds that spread by their roots. Surfaces with stone or gravel are mainly to be built where it's necessary due to use, since well-used hard …
