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130 Uppsatser om Baltic Sea - Sida 7 av 9

Tyr : En vetenskapshistorisk och komparativ studie av föreställningar och gestaltningar kopplade till den fornnordiske guden Tyr

Tyr ? A historical and comparative study of configurations and formations connected to the Old Norse god Tyr. Klas af Edholm This thesis has two aims. One is a discussion of the history of the study of Old Norse religion and related aspects, centered on how general tendencies within the area of research have affected the interpretations of the god *T?waz/Tyr.

Mälarens vattennivå i ett framtida klimat

The discharge from Lake Mälaren is regulated to keep the lake water level within limits set by a water decree. Despite this, in the year 2000 the lake water level rose above the upper limit. Studies conducted at the climate modeling unit Rossby Centre at the Swedish Meteorological and Hydrological Institute (SMHI) indicate that the inflow to the lake may increase in the future. A flood in the area will, among other things, strike infrastructure and residential districts.The aim of this study was to investigate the water levels of Lake Mälaren in future climates. In addition to this possible future expansion of the lake discharge though the sluice gates in order to keep water levels below limits set by the water decree and to prevent flooding of the shoreline were discussed.

Utvärdering av rörelsemönster hos öring (Salmo trutta) utifrån otolitmikrokemi

The classic view of trout (Salmo trutta) life history is that trout begins its life in freshwater, migrates to the ocean after about 1-4 years and then returns to freshwater to spawn. As trout fry have been caught at the mouth of the River Emån, near the Baltic Sea, researchers have speculated that some trout emigrate during their first year of life. The purpose of this study was to describe the variation in the length of time trout reside in freshwater before they migrate to the ocean for the first time. Another purpose was to investigate whether it was possible to discern where and how long the fish spent in freshwater and saltwater during different parts of their lives. Between 2007 and 2009, 23 adult trout were captured in the River Emån in southeastern Sweden.

Föroreningen av Östersjöns vatten : Enskilda avlopp och åtgärder för en långsiktig uthållig vattenanvändning

I denna uppsats undersöks det hur det fungerar med enskilda avlopp utanför kommunens VA-nät. Hur enskilda avlopp är uppbyggda och hur de fungerar. Varför man bör ha avloppsrening, och vilka lagar och regler som styr enskilda avlopp. Jag utreder vidare varför man ska jobba för en ökad rening av avlopp och varför man ska jobba mot att uppnå ett uthålligt samhälle.Uppsatsen har en teoridel som handlar om hur och varför vi ska sträva efter en uthållig samhällsutveckling. En strävan som kommuner som Söderköping har när dom försöker få människor att byta till hållbara VA-system.Med dom här funderingarna som bakgrund och ett antal frågeställningar har jag skrivit en fyllig bakgrund som går igenom Östersjöns problematik och även relevant information om enskilda avlopp.

Ultraljudssvetsning: ett komplement eller ersättning till symaskinen?

AbstractThis bachelor thesis has been assigned by the company ACG Nyström, Borås. ACG Nyström is working in cooperation with a Swiss company named Jentschmann AG. Jentschmann is a manufacturer of ultra sonic welding machines which ACG Nyström is marketing in Scandinavia and the Baltic States. On behalf of Jentschmann AG the company has the aim to introduce the ultra sonic welding technique to new companies.The aim of this thesis is to compare traditional sewing machines with ultra sonic welding machines within two textile areas, protective clothing and outdoor living.Two investigative questions have been formulated for this purpose: what are the differences between a sewing machine and an ultra sonic welding machine? Is it possible to replace the sewing technology with ultra sonic welding? These stand as guidance for this paper.To gather knowledge interviews, literature studies, and tests on two different ultra sonic welding machines were performed.

Utveckling av flytväst för den aktiva sjöräddaren

Rapporten behandlar den designprocess som genomförts under utvecklingsarbetet av en flytväst ämnad för de aktiva sjöräddarna i Svenska sjöräddningssällskapet. Målet med projektet har varit att undersöka sjöräddarnas behov och sedan uppfylla dessa med en ny optimerad flytväst. Den ska innehålla funktioner som förenklar räddningsarbete utan att minska den enskildas säkerhet, den ska ha en identitetsstärkande och för målgruppen tilltalande funktion och design.Projektet syftar till att utveckla befintliga kompetenser inom produktutveckling och komplettera med kunskaper inom sjöräddning och textildesign. Initialt medverkade gruppen i sjöräddningskurser för ökad förståelse och möjlighet att studera fördelar och brister med dagens utrustning. Under arbetet genomfördes intervjuer för att ta del av målgruppens åsikter och önskemål.Omväxlande kreativa metoder tillsammans med kontinuerliga funktionstester hjälpte till att utveckla en väl genomarbetad och fungerande flytväst.

Förstudie till våtmark i Rimbo : 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 Rimbo wastewater treatment plant has been imposed to reduce the annual mean concentration of total N in the effluent water to levels below 15 mg l-1. A more and more common way to reduce the nitrogen level in wastewater is to let the water pass through a wetland. This study investigates the possibility to build this kind of wetland at the outlet of the Rimbo wastewater treatment plant.A prestudy of the topography, soil characteristics and groundwater flow indicates that the land area in question is well suited for the construction of a wetland.

Populationsdifferentiering hos kransalger

Kransalger är en viktig nyckelart i Östersjön. De förökar sig med hjälp av oosporer och denna studie har syftat till att urskilja morfologisk differentiering mellan oosporer inom och mellan individer och populationer. Främst ställde jag mig frågan huruvida skillnader och likheter i morfologi kan associeras med skillnader mellan olika geografiska avstånd och habitat samt i vilken mån oosporer kan återföras till korrekt population och individ. Kransalger av arten Chara aspera har insamlats på lokaler i östra Svealand och elliptiska Fouriertransformationer har använts för att med hjälp av vågfunktioner beskriva oosporernas konturer. Parametrarna i vågfunktioner har sedan använts för statistiska analyser.

Fosforavskiljning i reaktiva filter vid småskalig avloppsrening

An excessive input of nutrients to lakes and other water bodies has created a problem with eutrophication in Sweden. Untreated, or partially treated, domestic sewage is a major source for discharge of phosphorus (P), which is the nutrient most frequently responsible for eutrophication of most fresh waters and the Baltic Sea. The waste water can be cleaned by filter materials, which have a high P-retention ability and which after saturation may be used as fertilizers. Four potentially suitable filter materials were tested in batch- and column experiments in this study. In the batch experiments, the following materials were shaken with waste water in time series ranging from 5 seconds to 60 minutes: coarse (1-4 mm) and fine (0-2 mm) Polonite® (heated bedrock from Poland); Filtralite® (light expanded clay aggregates with limestone added before burning); water cooled blast furnace slag (BF-slag) and BF-slag mixed with 10% burned limestone.

Utvärdering av lockmedel för marklevande predatorer under midvintermånader i Norrbottens inland

Many invasive species propose a big threat against the native fauna in the area that they colonise. Today the raccoon dog (Nyctereutes procyonoides) is speeding from Finland over the border in to northern Sweden. A project to stop the spread and eliminate the individuals that already have established was initiated in the autumn of 2008. To investigate areas that might be interesting for raccoon dogs and to confirm sightings, cameras with auto triggering mechanisms are used. To get the raccoon dog in front of the camera some kind of lure is used. In this study three kinds of different lures was tested against each other?s.

Fiskevård och delning av fiske vid lantmäteriförrättningar : Studie av FBL 3 kap 8 §

AbstractThis bachelor thesis was performed at the Royal Institute of Technology in Stockholm on behalf of the Land Survey Authority. The thesis is about fish conservation and division of fishing water at official duty. It is the Land Survey Authority that examines division of fisheries, but before a case can be implemented, certain requirements must be achieved such as FBL 3:8, which prevent divisions that are deleterious for fish conservation. The purpose of this thesis is: to obtain a clearer view how FBL 3:8 should be applied in practice, how the application differs between the offices in central Sweden, and how fish care is regulated at both international and national levels.At an international level, in EU the commercial fishery is regulated through the common fisheries policy (CFP). The fisheries policy consists of a reform that will last for 10 years.

Examensarbete ?Nuodå? Ett samarbete med AB O.H. Sjögrens

The ambition of this project is to make an overview of the Swedish upholstery industry and to make a suitable complement to the Carl Malmsten upholstery collection.The Swedish furniture industry employs about 20 000 people in 815 companies. Totally the branch had a turnover of 17,5 billion Swedish krona in the year 2000. Of these 815 companies most of them are small family driven companies with low-tech industry. 10 % of the 815 companies stand for 60% of the production. These are large-scale companies and have a hi-tech industry, even compared with other types of industries.

Östersjöledningen : En studie i åsikter och människors trygghetsupplevelse belyst av media

The Nord Stream natural gas pipeline has been a controversial project. The debate was primarily escalated by Poland's strong negative reaction to the project in the spring of 2006 over safety and security and then alternated back and forth in Europe until the approval by the nations most concerned in the Baltic region during the autumn of 2009.In the case study an approach is used that primarily maps out the media image of the various viewpoints that deal with the pipeline and how these viewpoints position themselves, primarily through political and environmental dimensions. Simultaneously there?s an attempt to map out the spatial spread of the media image views as to the proximity and distance to the pipeline in Sweden, Poland and Germany. A key question is whether distance or proximity to a large facility can affect people's attitudes.A parallel focus of the study is to explore the role of the Nord Stream natural gas pipeline in the cross-border hinterland region of Szczecin-?winouj?cie.

Genetic variation of ASIP and MC1R in past and present sheep of Gotland

Ovine black coat colour is determined by the MC1R (Melanocortin 1 receptor) and ASIP (Agouti signalling peptide) genes at the Agouti and Extension loci. The black phenotype is caused by production of eumelanin by melanocytes, whereas yellow-tan or light phenotype is the result of phaeomelanin synthesis. The ovine MC1R gene has two known alleles: the wildtype (E+) and the dominant black (ED) alleles. Two missense mutations (c.218T>A and c.361G>A) constitute ED. The presence of a third allele, the e allele, is proposed and believed to give rise to phaeomelanic phenotype.

FRISTADS ? Supply Chains, från tråd till arbetsbyxa

The Swedish Textile industry has since the beginning of the 70-ties moved their production to countries with cheap labour further and further away. The production in the Baltic countries and Asia has become reality for many Swedish manufacturing companies. With today?s technology the communication with remote countries has ceased to be a problem. The difficulties have instead turned out to be more focused on transportation of goods and just in time deliveries to Sweden.

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