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346 Uppsatser om Ship induced erosion - Sida 19 av 24

Isolating microorganisms from marine and marine-associated samples : a targeted search for novel natural antibiotics

The search for antibiotic compounds from the natural environment has been going on for seven decades, ever since penicillin entered the market and antibiotic treatments became routine. The evolutionary pressure put on the pathogenic microorganisms induced a rapid spreading of naturally occurring resistance genes, leaving only the option of finding new antibiotics to treat the resistant pathogens. Microorganisms have been extensively mined for their biosynthetic abilities to produce biologically active compounds. To date, more than 23 000 microbial natural products have been discovered. The Actinomycetales are ubiquitous bacteria that have been used for antibiotic discovery for more than half a century, and over 10 000 natural products have been identified from the order.

Dämpning av ljud i Shift-by-Wire växelväljare : Noise damping in a Shift-by-Wire gear shifter

Constantly growing demands from the costumers in the Automotive industry forces the subcontractors to seek alternative ways to compete. One parameter of quality is the components tolerance against NVH(Noise, Vibraion & Harshness) aspects. Kongsbergs Automotive has developed a new gear shifter platform (Shift-by-Wire) that is sold to Alfa Romeo and used in of their car models. However, the company is not pleased with the components sound quality, therefore the main purpose of this thesis is to develope a number of concepts that is supposed to enhance these NVH-aspects.To get an understanding of the problem an analysis of the causes of the emitted sound has been done parallell to a product decomposition, function decomposition and a Ishikawa-diagram. Together with these methods has a litterature study been performed to get familiar with the physics of an impact and especially the emittment of noise.

Uppbygnad av ett logiskt flöde vid produktionsövertag

The situation at Plastal AB is following; the plant in Simrishamn has not capacity enough but the plant in Kristinehamn has unused capacity. My task with this master thesis is to build a logistic flow between this two plants, optimize purchase quantities and ensure delivery safety.The production of the Intermediate Section (LS) will be divided between the plants. The LS will be produced in the following way; the injection moulding process will be done in Simrishamn and the assembling and lacquering processes in Kristinehamn, The reason to divide the production is to ensure delivery safety. Plastal AB can not move the whole production of the l.S because the two plants have different processes (moulding res. injection moulding).When the 1.5 has been transported to Kristinehamn following moments are included in this order; lacquering, welding and assembling.

Genotype by environment interactions of claw health in Swedish dairy cattle in tie stalls and loose-housing

Claw diseases are common diseases in modern dairy production. They are painful for the cow and costly for the producer. Differences in the prevalence of claw disease depending on housing system have previously been observed. This raises the question if there are genotype by environment (GxE) interactions for claw diseases in different housing systems. To investigate this claw trimming records for Swedish Red dairy cattle (SR) and Swedish Holstein cows (SH) were retrieved from the Swedish Dairy Association.

Effekt av biotintillförsel på klövhälsan hos mjölkkor i lösdrift : ett kontrollerat fältförsök på tre gårdar

The Effects of dietary biotin supplementation on hoof health in Swedish dairy cows - a controlled cohort field study. The aim of the present degree project was to investigate the effects of biotin supplementation on hoof health in dairy cows. The experiment was performed as a controlled cohort study in three commercial farms in western Sweden from January 2002 to October 2002. The cows were all housed in cubicle systems with transponder concentrate feeding systems. Within each farm the cows were allocated to either biotin or control treatment. The biotin groups received 20 mg of biotin per cow and day, starting 14 days before expected calving.

Nedbrytning av vägar: Jämförelse mellan axlar med singel- respektive tvillingmontage

When designing roads it?s important to knowwhat loads will bedriven on it. The axles on heavy vehicles can either have super single tires ordual tires which, according to studies, damage the roads differently. The SwedishTransport Administration is developing an understanding for the character ofthese different kinds of axle and tire types on the loads induced on Swedishroads. In this thesis a field study was conducted to determine the distributionbetween axles with super single tires and axles with dual tires on heavy vehicles.A highway, a country road and a national road were investigated during thestudy.

Målsättande Ledarskap till Sjöss : Nu och framöver

Denna studie diskuterar de ledarskapsstilar som används ombord på handelsfartyg. Den syftar till att avgöra huruvida en specifik mål-baserad ledarstil kan anpassas till att användas på ett modernt handelsfartyg. Den teori som används i studien bygger på Edwin A. Locke & Gary P. Lathams arbete inom målsättand psykologi och ledarskap.

Översvämningskartering av Vombs ängar

Vomb meadows is an area well knows for its rich bird life. During the 19:thcentury until mid 20:th century, the meadows were flooded annually in order toincrease the hay yield. The river Klingavälsån situated along the west side of themeadows, used to be a shallow river, meandering across the landscape. In the1940?s the river was straightened and made deeper.

På seglats i själens djup - en studie av droginducerade mystika tillstånd och erfarenheter

The use of hallucinogenic plants has throughout human history been used for religiouspurposes, in order to induce mystical states of mind, often interpreted as meeting with godsand spirits. In recent years, this practice has been taken up by people interested in theexploration of their psyche and spiritual side. This group of people, referred to as?psychonauts?, communicate with each other through internet based forum, where theyshare their experiences in so called ?trip reports?. The aim of this study was to see whatrole psychedelic drugs can play when used in a spiritual/religious context, and whetherthese sorts of mystical states of mind could tell us about more traditional mysticalexperiences.

Kolsyrade drycker och oral hälsa : En littraturstudie

Bakgrund: Den postoperativa smärtans utfall påverkas av en rad olika faktorer såsom kirurgins lokalisation och omfattning, barnets ålder och dess förväntningar. I mitten av 1900-talet sågs negativa konsekvenser av att barn blev lämnade ensamma på sjukhus. Detta har lett fram till en mer familjecentrerad vård där föräldrarna har en viktig roll. Vården bygger på ett nära samarbete, där föräldrarna är en bro mellan barnet och vårdpersonalen. Föräldrarna kan med sin närvaro trösta, stötta och hjälpa barnet att lindra sin smärta.

Kostnadseffektiv svaveldioxidreduktion : en studie där ett optimalt svenskt mål jämförs med ett internationellt mål

In Sweden the work of reducing acidification and its prime cause; emission and deposition of sulphur dioxide, has been going on for decades. Despite of all the work that has been done the positive progress in the acidified areas is slow. This is partly due to a long recovery time for the acidified areas but also because the reductions of emission and deposition of sulphur dioxide have not been large enough. Emissions of sulphur dioxide from land based source in Sweden are estimated to 34 000 tons in the year of 2010. During the same year, approximately 182 000 tons of sulphur dioxide will be deposited over the Swedish territory.

BEPS Action 8 : Finns förutsättningar för att de angivna målen uppfylls?

BEPS är ett projekt påkallat av G20 som bedrivs i OECD:s regi. Projektet syftar till att förhindra erosion av nationers skattebaser, på grund av upplägg där vinster genom koncerninterna transaktioner flyttas till länder med låg beskattning. Denna uppsats behandlar specifikt BEPS action 8, vilken rör interprissättning av immateriella tillgångar. Syftet med uppsatsen är att utreda om OECD:s rapport angående BEPS action 8 ger förutsättningarna för att uppfylla, de i rapporten angivna målen, samt vilka problem som kan påverka måluppfyllelsen. Målet med BEPS action 8 är att se till att internprissättning av immateriella tillgångar, inte används för att separera beskattningsbara inkomster från värdeskapande aktiviteter.Därmed fokuserar BEPS action 8 på att se till att utförande av funktioner, användande av tillgångar och risktagande kompenseras på ett korrekt sätt, då detta anses bidra till värdeskapande.

Site preparation, planting position and planting stock effects on long-term survival, growth and stem form properties of Pinus contorta on southern Iceland

In order to evaluate different afforestation methods for exposed heath lands a field experiment was established in Mosfell on southern Iceland in 1989. The trial comprised six different site preparation methods (control, herbicide application, tree shelters, patch scarification, TTS trenching and mounding). In total 960 container seedlings (1+0) and 960 Nisula roll transplants (2+1) of lodgepole pine were planted. Various planting positions (furrow, hinge, no site preparation (control) and on top of mounds) were tested within the site preparation treatments. This study involves renewed measurements and analyses of the trial.After 19 years the overall survival was 51,7 %.

Utredning av Valboåsens grundvattenmagasins förbindelse med Gavleån : En analys av halten löst syre genom mätningar

Gävle kommuns VA-huvudman Gästrike Vatten AB ansvarar för dricksvattenproduktionen i Gävle. För Gävles tätort tas vatten från Valboåsen som sträcker sig från öster om staden, genom staden och vidare norrut. Denna rapports syfte är att genom mätning av halten löst syre undersöka Valboåsens förbindelse till Gavleån. Detta kommer ge en ökad förståelse för åsens komplexitet. Resultatet kommer också att användas för att verifiera och utveckla den konceptuella modellen över flödena i åsens grundvattenmagasin som tagits fram av Midvatten AB.

Metodik för bestämning av åkerdikens status : fallstudie av ett dike i Munktorps socken

Agricultural drainage ditches are links between fields, lakes and oceans, having the potential to transport e.g. sediment and nutrients. When in a good condition, drainage ditches can act as sinks for e.g. phosphorus and sediments and prevent eutrophication downstream. The aim of this study was to determine the condition of one agricultural drainage ditch and to come up with suggestions for appropriate measures. The aim was also to determine which of the ditch?s properties that were possible to evaluate visually, which processes they represented as well as which properties required complementary physical analysis. This in order to contribute to the work of developing a method for determining the status/condition of agricultural drainage ditches.

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