128 uppsatser · sida 4 av 9
… The chemical mechanisms causing the removal are specific adsorption to the surfaces of the materials, and for the blast-furnace slag probably precipitation of insoluble metal sulfides.
… 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 …
skak- och kolonnförsök
… and batch experiments. Five different kinds of filter materials with reactive surfaces have been studied concerning their capacity to absorb ammonium and phosphorus from wastewater. The materials that were examined are Filtra N, wollastonite Filtra P, blast furnace slag and …
fysikaliskt verkande insektsmedel : mortalitet och appliceringsteknik
… different nozzles were evaluated, measuring per-centage coverage of the lower surfaces of the leaves and calculating the dispersion in three levels in the foliage of cassava, in relation to the liquid amount used by the spray equipment and the nozzles. The differences in the …
förslag till klassificeringstabell
This report deals with hard surfaces and the factors which are behind the criteria for dimensioning, also dependent on the level, or volume, of traffic. A test was made on slabs of two kinds of natural stone. This was made to see if the values that were reached for breakload was …
… the cows further back in the cubicles the effect could be cleaner lying surfaces. In result this would lead to lower labour requirements, cleaner cows, cleaner udders and a minimization of the risks of mastitis. However, if the altered slopes lead to that the cows position …
… a three dimensional model of the house. In a rendering program, materials and surfaces are chosen for the model and then a picture of the finished product is made. The programs used for this work are ADT 2006 and VIZ Render. To evaluate the use of this method I’ve chosen to …
attityder och lokalisering
… risk of littering, the level of noise, the traffic situation, existing hard surfaces and property ownership. The inhabitants of Lidingö want the public recycling stations to be located near their homes, near main roads or near shops in order to be accessible. Car is the main …
… of oil film thickness is evaluated, more could be understood about different surfaces ability to build up oil film thickness in low sliding velocities. The purpose of this master thesis, is to evaluate a method for measuring oil film thickness between piston ring and cylinder …
… Ålidhem can be described as monotonous and worn with many large, open, "poor" surfaces. In my report I present what is needed to create a safe environment. To achieve a safe environment it is important with an environment that is clean and fresh. It is also important to adapt …
en fallstudie hur miljöpåverkan av en dagvattendamm intill ett Natura 2000-område kan bedömas
… water that originates from precipitation or snowmelt and that on hardened surfaces prevents to infiltrate the ground. In city areas stormwater can consists of major amounts pollutants and when reaching a lake or watercourse it can cause damages on vegetation and animals …
föryngringsresultat 7-10 år efter avverkning
… ground, the numbers of main crop seedlings were lower and the proportion of surfaces empty from seedlings was larger than in those parts of the stands where the vegetation was characterized by Carex and Equisetum species (Sedge/Horsetail-types) and by grass species on moist …
en studie i sydvästra skåne
… may be problematic. Especially in urban areas with limited space, solid surfaces, pollutions, and warm and dry climate. In these environments vegetations may have difficulty surviving and moreover it may have a negative impact on the environment around it. It is also in these …
scenarier för efterbehandling och gestaltning av Aitikgruvan, Gällivare
… of the tailings will be divided by embankments and get four different water surfaces. By this way the water table will be raised in a large part of the tailings. It will facilitate the growing conditions of the surface and further prevent oxidation of the tailings. The design …
hållbar och funktionell växtanvändning i lekmiljöer för förskolebarn
… own imagination places, hilly ground, enough room for both open and closed surfaces, as well as access to loose materials and also the opportunity to play with water and to study animals in the nature. The outdoor climate should be as pleasant as possible. All these values …
