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1518 Uppsatser om Urban soil - Sida 54 av 102
Marktäckande, lågväxt vegetation på ställverksmark : en biologisk bekämpningsmetod mot ogräs
Unwanted vegetation on the land of electric transforming stations is a problem, in the sense that it contributes to higher fire risks and also constitutes an obstacle for people performing maintenance operations at the station. Such unwanted vegetation is controlled using herbicides and mechanical measures. Since the use of herbicides implies environmental hazards, there is a need to find alternative ways of fighting the unwanted vegetation.
Investigation into suitable plants for ground cover, trials in the greenhouse, trials in the field, soil analyses and compilation of experiences from similar trials are parts of this work. The paper also contains analyses of possible environmental benefits and economical gains. There is also a final discussion of some proposals regarding alternative weed controlling methods.
Trattbägarkeramik i Väte : när jordbruket kom till Gotland
This essay is a study and analysis of the funnel beaker pottery at Gullarve 1:13 in Väte parish. The purpose of the study is to analyse the chronology of the settlement by determine the distribution, stratigraphic context and the ornamentation of the pottery. Another purpose is to discuss the geographical location of the settlement in the landscape.In this essay a short review of the pottery and the funnel beaker culture as well as a description of the pottery from the archaeological excavation from 1984 at Gullarve 1:13 is presented. Since the documentation of the archaeological excavation from 1984 is missing or is very inadequate, no spatial analysis can be carried out. The distribution of the pottery can?t contribute to the result of the essay, though if possible it probably would have provided some interesting results.
Nya landskapselement i Infra City :
My work deals with large scale design of the urban fringe. The thesis is divided in three parts; ?Current viewpoints?, ?Infra City ? conditions ? and ?Infra City ? project?.
In the first part, I go through the history of trade shortly. Then I discuss the concept of nature, which ends up in a linkage between natural science and aesthetics in landscape architecture. The link between those two makes a project stronger and more multifunctional.
The object of my case, Infra City, is a mall situated north of Stockholm on both sides of the E4 motorway going to Arlanda airport.
Skogsskötsel för att minimera stormfällning över järnväg :
The society of today is dependent of secure transports and deliveries of electrical power. Interruptions in different activities because of fallen trees cost a great deal of money in form of reparations and claimed damages for transport companies and electrical suppliers. Fallen trees along some railway sections are a severe problem. For instance, to repair the damages of the storm of week 5 year 2002, costed 2 800 000 SEK for the line region of Hässleholm. Today, the Banverket railroad company has no norms in general for how close to the railway the forest is allowed to grow.
Grönstrukturens funktioner i urban miljö- med studie av Hultmans holme
Grönstrukturen är en av de övergripande strukturerna i vårt samhälle
tillsammans med bebyggelsestruktur och infrastruktur. Alla olika funktioner som
grönstrukturen har kan i sin tur delas in i tre övergripande grupper med:
sociala, ekologiska och kulturella funktionsvärden. Det är ofta så att de
sociala och kulturella värdena inte får lika stor tyngd vid beslutsfattande.
Då är de främst de ekologiska funktionerna som går före eftersom den befintliga
naturen har t.ex. skyddsvärda arter.
Det finns olika sätt att planera ett områdes grönstruktur som saknar befintlig
grönska:
Patrik Grahns åtta parkkaraktärer tillsammans med typaktiviteterna med sina
tydliga inriktningar och konkreta innehåll kan ligga till grund för och
inspirera till nya parker och grönområden.
Sänkta sjöars inverkan på ytvatten i Västerbottens kustland : Samband mellan sänkningsnivåer och vattenkemi i sjöar på sulfidrika sedimentjordar
Lake lowering in sulphide-rich areas is currently a major environmental impact for surface water. This study focuses on whether there is a relationship between a gradient of lake lowering and surface water impacts in areas of sulphide-rich sediments, in order to better understand their contribution of heavy metals and sulfuric acid. Also, is it a reasonable method to use the reduced lake area in order to quantify the gradient? The survey was conducted by collecting water samples from reference lakes and lowered lakes from south to north in coastal areas within the county of Västerbotten. Water samples were then analyzed for TOC, pH, conductivity, anions, base cations, alkalinity, acidity, sulfate, Al, Cd, Fe, Mn, Cu, Zn and Pb.
Three block war : en studie av utbildningsdokument
Uppsatsen är skriven som en del i de studier i krigsvetenskap jag erhållit på Yrkesofficersprogrammets sista termin.Syftet med uppsatsen är att bidra till utvecklingen av de soldatutbildningshänvisningar som nyttjas vid Artilleriregementet. Frågeställningarna lyder: - Tränas soldaterna vid Artilleriregementet, enligt utbildningsdokumenten som nyttjas, för att klara av de krav som ?Three block war? ställer? - Kompletteras eventuella brister vid utbildningen på Artilleriregementet, genom utbildningen som sker inför internationell tjänst? Metoden som använts är deskription med tekniken litteraturstudier. Begreppet "Three block war" beskrivs därefter analyseras utbildningsdokumenten för att besvara frågeställningarna. Analysen visar att soldater som gjort värnplikten på Artilleriregementet och därefter genomgått den gemensamma utbildningen som ges utlandsstyrkan fortfarande har ett behov av utbildning. Detta kopplat till om soldaterna skall klara av att verka i ett område som karaktäriseras av "Three block war"..
Lagring av kyla med horisontella markvärmeväxlare för kylning av koncepthus i Mellanöstern
Norconsult AB has developed a solarhousing concept, a house designed for the warm climate in the Middle East andwith large quantities of solar panels installed. The cooling system for the house was designed in an earlier report, the purpose of this thesis is to investigate the possibility of short and long term storage of thermal energy via an underground energy storage volume.Two different designs of the storage and three different filling materials have been integrated into a model to simulate different cases. The first design consisted of pipes installed in the ground, without insulation. The second design consisted of an insulated concrete box installed to prevent thermal energy from the surrounding soil to flow towards the lower temperature regions within the storage. The three different filling materials were dry saudi sand, water saturated saudi sand and the filling material used by the client for energy storage in Sweden.The results from the simulations show that neither of the designs, regardless of the filling material, managed to extract enough thermal energy from the house to the ground to uphold the demands of indoor climate.
Förvärv och försäljning av fastighet med förorenad mark : Särskilt gällande ansvar och friskrivningsklausuler
Properties are bought and sold daily, which means that it is of great importance with rules that regulate the acquisition. The rules on who should be held liable for a property brought to a head when the acquisition relates to a property that is loaded with contaminated soil. The purpose with this thesis is to investigate who could be held liable for contaminated land and also whether an exclusion clause can affect the separation of responsibilities. Two different liabilities can occur depending on which law that should be applicable, MB or JB.MB's rules apply to anyone who may be subject to decontamination responsibilities, which is regulated in Chapter 10. MB.
Conan fascisten? En idéanalytisk studie kring sword and sorcery och Robert E. Howards fiktive barbar
This thesis falls within the realm of social studies, specifically social studies in literature, and attempts to establish whether the sub-genre of fantasy literature known as sword and sorcery contains elements which resemble the tenets of fascism. Robert E. Howard is considered the progenitor of the sub-genre and his stories have an influence on the nature of sword and sorcery literature today, 70 years after his death. Howards creation of the sub-genre coincides with the spread of fascist ideologies around the world in the 1930s and the study attempts a societal mirroring analysis of Howards texts. With the help of an analytical model based on fascism expert Robert O.
Att planera för tillväxt : med utgångspunkt i Lund och Köpenhamn
Politiska och ekonomiska svängningar samt geografiska förutsättningar präglar stadens fysiska planering samt dess uttryck och form. För Lund och Köpenhamns räkning har planeringsprocessen under drygt femtio år tillbaka skett utifrån ett antal plandokument, upprättade för att kontrollera stadens utveckling. Studier av dessa dokument visar hur städerna fysiskt brett ut sig i landskapet samt argumenteringen kring denna tillväxt. Under 50- och 60-talen bredde städerna ut sig för att kunna erbjuda fler och bättre bostäder under devisen ?välfärd åt alla?.
Handlingsplan för rening av dagvatten från hårt trafikerade gator i Örebro
The main purpose with the project has been to approximate the magnitude of the pollution transport from the actual road surfaces and to get an approximation of the possibility to collect the pollutants to reduce the load to the water and improve the water quality.The quantity of pollution transport from the most trafficated roads areas in Örebro city has been calculated. Roads whith a traffic exceeding 10 000 vehicle/day. The study has been done with the calculation tool StormTac. Through analysis of traffic loads and road surface, which together with a different kinds of parameters gives an approximation of the pollutant transport.The calculation has included some metals and other substances in the stormwater and has also included the present of suspended solids. Included the overall study, some smaller areas has also been calculated for the possibility to remove pollutants.The work also includes calculation for three different areas for stormwater treatment.
Raä 977 - En lokal och tre aktivitetsytor. : En tvärvetenskaplig undersökning av Raä 977 vid Vojmsjön i Vilhelmina socken
This candidate thesis concerns the ?all but forgotten? material from the bronze age site named ?Raä 977, Hansbo 1:3, Vojmsjön, Vilhelmina?. During 1975-76, an archaeological dig was carried out by Västerbottens museum led by Ulla Walukiewich in an attempt to preserve the information the site held, before it was destroyed by the erosion brought on by the recently regulated sea ?Vojm? (Vojmsjön). The archaeological dig yielded a stunning amount of finds, samples and information previously unknown.
Ingenjörpluton : Kung på en sak eller klåpare på tusen?
This essay is about the engineer platoon. The engineer platoon has many different tasks and from my own experience sometimes too many. The platoon is able to build bridges, clear mines and to perform all kinds of construction work in rural or in urban terrain.In this case study I compare goals/demands for the battalion to goal?s set up for the company and finally what effects this has on the engineer platoons abilities. The main question is, if the engineer platoon really can solve all tasks given to them in the document TOEM? Abilities such as effect, protection and movement are the bearing parts of the case study.The materials I have analyzed are mostly from documents published by The Swedish Armed Forces.
Gestaltning av det flexibla offentliga rummet : Torget i Leksand
I takt med ökande urbanisering fluktuerar befolkningsmängden allt kraftigare i små orter och många är beroende av turism. Leksand är en av de orter som upplever en kraftig tillströmning av turister under sommaren. Stora ytor står tomma över vintern och påverkar livet i centralorten negativt. Kommunen strukturerar nu om sitt centrum och efterlyser flexibel gestaltning som passar både hög- och lågsäsong. Flexibel urban design innebär att offentliga miljöer ska vara förberedda på demografiska förändringar och tillgodose blandade målgrupper på lång sikt, utan att en hel omgestaltning är nödvändig.