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272 Uppsatser om Computational Plasma Physics - Sida 9 av 19
By the Secret Fashion Concil. Project No 1 - jewellery collection
The Secret Fashion Council blends spirituality with fashion, art and design. This jewellery collection shows the connections between parapsychology and quantum physics, based on the study of matter and energy, that everything in the universe is built of vibrations. Many believe psychics have the ability to sense this. By using the skills of a psychic, the Secret Fashion Council invites the wearer to have the jewellery ?read? and evaluated in a most special way, tracing the wearer?s spiritual past, present and future.
Aerosolers dygnsvariationer och långväga transporter
This work aims to obtain information on diurnal variations of aerosol concentrations in thecity of Lund (Sweden) and trying to locate the origin of the aerosols long distance transports.The study shows that the aerosol concentrations varied quit strongly over the entiremeasurement period, reflecting air masses of different degrees of pollution, mainly as a resultof the diurnal rhythm of the traffics. Trajectories reveals that air masses originated inSoutheastern and Eastern Europe contains higher aerosol concentrations compared to other airmasses..
I strävan efter anti-estetik och musikalisk etik
In his master thesis, Johan Jutterström pursues an anti-aesthetic and ethic artistic process. He?s using mainly three different strategies; reasoning through text, composing for ensemble, and solo improvising on the saxophone. Through composing the piece for 12 musicians Trästolen, Jutterström tries to erase himself and his taste from the music. In that endeavor he looks to physics as a catalyst.
Elektriskt system för detektion vid ballistiskt prov
The purpose of this thesis was to design an electrical system for use in a ballistic test at the Swedish National laboratory of forensic science (SKL). The detector unit would use four main parts: coilsystem, transmitter, reciever and indicator. The coilsystem would be based on a balanced system using three coils. One that creates a magneticfield and the other two will sense the differences when a metallobject is in the coilsystem. This report starts out by investigating possible solutions for this specific task followed by a description of the physics that the metaldetector use.
Isaac Newton och den matematiska naturfilosofin
In several scientific and technical educations today we meet mathematical studies in differential- and integral calculus. The classic mechanics is a foundation for the physics and it has made it possible for today's technical developments that we in our everyday life meet and make use of. The intention for this essay is to give a picture of the person behind this discoveries that changed the science and the world. Besides the purpose to bring the reader on a journey through Isaac Newton's life the main intention is to give an understanding of the way he discovered the binomial theorem, the differential- and integral calculus, the numerical methods Newton-Raphson's and Newton's interpolation-polynomial, Newtons identities and his classification of third-degree curves and elliptic curves. A derivation of Kepler's first law is also included..
Blodbank för hund och katt : djursjukskötarens roll
Arbetet handlar om blodbank för hund och katt, det innehåller information om bloddonator, blodtappning, rutiner vid hantering av blodprodukter, vad det finns för blodprodukter och deras användningsområden, samt blodtransfusion och transfusionsreaktioner. För att bli bloddonator ska vissa kriterier uppfyllas, donatorn ska vara frisk, ha bra temperament, uppnå en viss vikt, ha bra blodvärden, inte bära på smittsamma sjukdomar med mera. Vid blodtappning på hund används oftast slutna humansystem, medans man på katt använder små specialanpassade system. Antikoagulantia och näringslösningar används i systemen så att blodet inte ska koagulera samt att blodprodukten ska få längre hållbarhets tid. Det är viktigt att blodtappningen sker med hög aseptik så risken för bakteriekontamination blir så liten som möjligt.
Skolsituationen för elever med betyget MVG i matematik : En fallstudie av fyra elever i grundskolans årskurs 9
This thesis has been focused around the Diels Alder reaction with the goal to design an enzyme catalyzed reaction pathway. To achieve this goal computer aided enzyme design was utilized. Common traditional methods of computational chemistry (B3LYP, MP2) do not do well when calculating reaction barriers or even reaction energies for the Diels Alder reaction. New calcu- lation methods were developed and tested. This was the focus of the first part of the thesis, by choosing a small system, extensive and heavy calculations could be done with CBS-QB3.
Beräkningar med GPU vs CPU : En jämförelsestudie av beräkningseffektivitet med avseende på energi- och tidsförbrukning
Examensarbetet handlar om en jämförelsestudie av beräkningseffektivitet med avseende på energi- och tidsförbrukning mellan grafikkort och processorer i persondatorer och PlayStation 3.Problemet studeras för att göra allmänheten uppmärksam på att det går att lösa en del av energiproblematiken med beräkningar genom att öka energieffektiviteten av beräkningsenheterna.Undersökningen har genomförts på ett explorativt sätt och studerar förhållandet mellan processorer, grafikkort och vilken som presterar bäst i vilket sammanhang. Prestandatest genomförs med molekylberäkningsprogrammet F@H och med filkomprimeringsprogrammet WinRAR. Testerna utförs på MultiCore- och SingleCorePCs och PS3s av olika karaktär. I vissa test mäts effektförbrukning för att kunna räkna ut hur energieffektiva vissa system är.Resultatet visar tydligt hur den genomsnittliga effektförbrukningen och energieffektiviteten för olika testsystem skiljer sig vid belastning, viloläge och olika typer beräkningar..
Plasmaendotelin och blodtryck hos hästar med dietinducerad fetma
Fetma är ett tillstånd som har visat sig öka risken för utvecklandet av metabolt (MS) syndrom hos människa. MS karaktäriseras av fetma (framförallt bukfetma), insulinresistens (IR), diabe-tes mellitus och högt blodtryck. Idag anses fetma även vara en av orsakerna till utvecklandet av ekvint metabolt syndrom (EMS) som ses hos hästar. EMS liknar till stor del den sjuk-domsbild som ses hos människor med metabolt syndrom. Förutom fetma är regionala fettan-sättningar och IR vanligt förekommande hos dessa hästar som ofta även utvecklar fång.
Comparison of two methods for evolving recurrent artificial neural networks for
n this dissertation a comparison of two evolutionary methods for evolving ANNs for robot control is made. The methods compared are SANE with enforced sub-population and delta-coding, and marker-based encoding. In an attempt to speed up evolution, marker-based encoding is extended with delta-coding. The task selected for comparison is the hunter-prey task. This task requires the robot controller to posess some form of memory as the prey can move out of sensor range.
Datorbaserad analys av enzymdesign för Diels-Alder reaktioner
This thesis has been focused around the Diels Alder reaction with the goal to design an enzyme catalyzed reaction pathway. To achieve this goal computer aided enzyme design was utilized. Common traditional methods of computational chemistry (B3LYP, MP2) do not do well when calculating reaction barriers or even reaction energies for the Diels Alder reaction. New calcu- lation methods were developed and tested. This was the focus of the first part of the thesis, by choosing a small system, extensive and heavy calculations could be done with CBS-QB3.
Våtmarken som renare av dagvatten
Eight healthy 3-day-old foals were given repeated injections of trimethoprim-sulfadiazine intravenously for 3 days, at a dosage of 15 mg/kg bodyweight (2,5 mg trimethoprim and 12,5 mg sulfadiazine). Blood samples were collected prior to each administration and for the following 24 hours after last administration. Serum concentrations of trimethoprim and sulfadiazine were measured and the pharmacokinetics for the substances were studied. The elimination half time (t½) and clearance (ClB) for trimethoprim and sulfadiazine for the foals did not diverge from adult horses. According to these data it is possible to assume that the same dose interval and dose can be used for foals as for adult horses.
Asymmetrier i travhästars rörelsemönster vid långsam och snabb trav
Eight healthy 3-day-old foals were given repeated injections of trimethoprim-sulfadiazine intravenously for 3 days, at a dosage of 15 mg/kg bodyweight (2,5 mg trimethoprim and 12,5 mg sulfadiazine). Blood samples were collected prior to each administration and for the following 24 hours after last administration. Serum concentrations of trimethoprim and sulfadiazine were measured and the pharmacokinetics for the substances were studied. The elimination half time (t½) and clearance (ClB) for trimethoprim and sulfadiazine for the foals did not diverge from adult horses. According to these data it is possible to assume that the same dose interval and dose can be used for foals as for adult horses.
Reciprok egoism, skeptisk empirism och modern fysikalism : Titelförslag på några principer och diskurs kring dessas korrelation
Denna essä är en ontologisk och epistemologisk undersökning av bland annat etiska och medvetandefilosofiska implikationer av en konsekvent fysikalistisk hållning. I detta kontrasteras mot en transcendentalistisk hållning, som den av T. M. Scanlon, den skeptiska empirismen av David Hume, reciprokt baserade moraliska system (e.g. J. L.
Förbränning av träpellets och pelleterad halm i en 40 kW rosterreaktor
The project focus on combustion of softwood pellets and pellets in a 40 kW grate fire reactor at TEC-Lab. Dept Applied Physics and Electronics at Umeå University. Experiments were performed at four primary airs to fuel ratios (0.7 to 1.3), where aspects such as temperature profile, levels of gases (CO and NO), sintering-/-slagging and unburned fraction of the ashes were studied. Four different fuel loads were used for wood pellets (10, 20 and 30 kW) and one fuel load for straw (10 kW). Combustion of straw proved very difficult to ignite, and also led to other combustion-related technical problem such as slag formation due to the relatively low melting temperature-/-slag temperature of the straw.