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1389 Uppsatser om Filter materials - Sida 6 av 93
"Klänningen som får en andra chans" : klädkonstruktion av återbruksmaterial
This report presents a bachelor thesis by Erika Gustrén aimed to increase people?s interest for recycling and reusing by create new products of things that already exist in most people?s homes in the materials textile, plastic and paper. That would be a modern and innovative way to contribute to a better environment.The goal with this project was to create three cocktail dresses made of the same pattern and design and with the three chosen materials. The project did not have its base at a company, therefore an external mentor was chosen to help and support during the development of the project. My mentor was Kerstin Boulogner who is a fashion designer and one of the members of GKF (Gotländska Konsthantverkare och Formgivare) in Visby.The project began with an analysis of the chosen materials; textile, plastic and paper.
Rening av avloppsvatten från biltvättar med filter av torv och inblandad kolaska : en utvärdering av effektivitet och avfallshantering ur ett miljöperspektiv
Filtermaterial av 75 % torv och 25 % kolaska har använts under 2 respektive 4 år för rening av avloppsvatten från två biltvättar. Jämförelse med Kristianstads kommuns riktvärden för avloppsvatten från fordonstvättar visar att filtren fungerat. För avfallsklassning krävs kunskap om innehåll av miljöfarliga ämnen i produkter som använts i tvätthallarna. I brist på kunskap om innehåll av ej analyserade miljöfarliga ämnen i filtren anses förbränning vara ett bra omhändertagande ur miljösynpunkt, då energi och aska återvinns..
Bakterietillväxt i strömedel till mjölkkor
The resting area is the most important place in the barn for the dairy cow, sometimes called the heart of the free stall system. Inadequate design of the lying area, and lack of or poor quality of bedding materials may reduce the hygiene of the stall. Poor management regarding the cleanliness of the resting area may lead to poor animal hygiene and increased bacterial growth. This in turn will lead to increased risk for environmental mastitis as well as impairing milk quality through contamination with spores.
In this literature study the most commonly used bedding materials; straw, sawdust, wood shavings, clean sand, recycled sand, peat and recycled manure solids, are compared to one another with regards to their ability to resist bacterial growth. Effects of adding hydrated lime to bedding materials have also been studied.
Most bacteria need humidity and prefer a quite high water activity to be able to grow.
Motivations- och prestationshöjande undervisning för elever med autismspektrumdiagnos : användning av digitala verktyg i elevgrupper med autism och utvecklingsstörning
This is a study about how different digital instruments can be used in education for pupils with autism and intellectual disability. The questions formulated to research this chosen area was: ?What does teachers think about digital instruments and interactive teaching materials when it comes to benefits and disadvantages in the classroom?, ?In what ways is digital instruments used as teaching materials in the specific school context? and ?From a perspective of teaching and learning, what kind of problems and opportunities can be gained from using digital instruments and teaching materials?. To gather this information interviews was done with three specialist pedagogues working with the chosen group of pupils at three different schools. The material shows that the specialist pedagogues have positive attitudes towards working with digital instruments in this specific group of students..
Traditionella och samtida bottenbj?lklag: med fokus p? isoleringsmaterialen
The survey aims to shed light on traditional and contemporary bottom floor frames, their construction
and different insulating materials; mineral wool, wood shavings and charcoal. The purpose is to
analyze and discuss the similarities and differences as well as the pros and cons with a focus on the
construction and the different insulating materials.
The work has been limited to comparing two different wooden floor frames. The first one is based on
a real floor frame from an older building, this example is presented as the traditional floor frame in
this study and are from around 1940. The other floor frame is presented as a contemporary floor frame
and is based on wood building type descriptions and literature.
Ingen fara på taket : skolpersonal om anmälningsskyldighet
This is a study about how different digital instruments can be used in education for pupils with autism and intellectual disability. The questions formulated to research this chosen area was: ?What does teachers think about digital instruments and interactive teaching materials when it comes to benefits and disadvantages in the classroom?, ?In what ways is digital instruments used as teaching materials in the specific school context? and ?From a perspective of teaching and learning, what kind of problems and opportunities can be gained from using digital instruments and teaching materials?. To gather this information interviews was done with three specialist pedagogues working with the chosen group of pupils at three different schools. The material shows that the specialist pedagogues have positive attitudes towards working with digital instruments in this specific group of students..
Modellbaserad temperaturregleringav partikelfiltrets regenereringsprocess
Due to increasing regulations regarding new diesel vehicles particulate matteremissions the new Scania truck, Scania Euro 6, has been equipped with a particulatefilter. This component effectively stores the particles in the exhaust gas but must becleaned in order to prevent itself from clogging. The filter is cleaned through aprocess named regeneration which is a thermodynamic process in which thetemperature of the filter is raised through fuel supplied to the exhaust gas.The purpose of this thesis is to contribute to the development of improved controlstrategies of the temperature during the regeneration process through thedevelopment of model-based controllers. These controllers are designed in order tohave good performance in stationary as well as automatic regeneration.In order to develop these model-based controllers a model of the system isconstructed. The model is described as a linear thermodynamic grey-box model withflow varying parameters, showing good results in validation.The model provides a simulation environment during the controller design, which isfocused around the development of linear regulators with the exhaust gas mass flowas a scheduling variable whose size determines controllers? mode of operation.
Kvinnor gillar flärd, män är som de är : En studie om hur män och kvinnor skildras i samhällsmagasinen Filter och Fokus
AbstractAuthors: Mikaela Magnusson & Malin StenströmTitle: Jolly women and ugly men - a study of the way men and women are portrayed in the magazines Filter and FokusLevel: BA Thesis in JournalismLocation: Linnaeus UniversityLanguage: SwedishNumber of pages: 78 Everyday we're exposed to gender roles. It can take the form of our immediate family, our classmates, the books we read, the teve series we watch or the magazines we read. Everyday the world around us shape the way we think of men and women and how they're supposed to be. As a part of either (or neither) of those genders we are all shaped into the mold that society has set for us. The media is one of the largest contributors to this socialization and therefore we felt it necessary to study two, critically acclaimed, media outlets and shed some light on their portrayals of gender. We chose to study Filter and Fokus, two social magazines with close to a corresponding amount male as female readers and a reputation of being modern and free of prejudice.
Val av stommaterial : Vilket är det mest fördelaktiga stommaterialet vid uppförande av en hallbyggnad?
When constructing an industrial- or hall building, the most common framework materials thatis used are wood, steel or concrete. Due to an assignment from Byggnadstekniska Byrån ABhas a document been created that makes it possible to investigate how the final costs is af-fected by gapes in between elements and which used foundation. And this with steel as thematerial. The purpose with this essay is to investigate which is the most well fitted materialwhen constructing an industrial- or hall building wood, steel or concrete. Information aboutthe different materials has been collected by litterateurs and by different internet pages.
Värdering av föroreningsrisk - Ett förslag till angreppssätt för värdering av föroreningsrisk till följd av emission från en vägkonstruktion
When constructing a road the risk of emission of substances from the used materials to the surrounding environment has to be evaluated. The aim of this study is to present a proposal for how to evaluate the risk of contamination as a result of emission from the materials in a road construction. The study is based on literature studies, an inventory and a questionnaire that examines how experts in governmental agencies, industries and universities evaluate the risk of contamination. The inventory indicates that guidelines for evaluating the risk of emission from secondary materials in a road construction do not exist. The conclusions from the questionnaire are: that there is no common way to evaluate the risk of contamination as a result of emission from materials in the road construction, there is no uniform interpretation of the terms "minor" and "significant" risk of contamination and that the evaluation is subjective.
Sensorfusion för reglering av obemannad helikopter
Den obemannade helikoptern Skeldar utvecklas av Saab Aeronautics. Saab är intresserade av hur väl sensorfusion kan användas för navigering av en obemannad helikopter. Med sensorfusion kan tillgängliga sensordata fusioneras. Det är mätningar från accelerometer, gyro, GPS och magnetometer som används av olika Kalmanfilter. Olika sensorfusionsmetoder föreslås, däribland Extended Kalman Filter (EKF) och ett heuristiskt filter för att visa på hur man intuitivt kan göra för att fusionera mätningar jämfört med det modellbaserade sättet som Kalmanfiltret erbjuder.
ENERGI- OCH KOSTNADSEFFEKTIVAMATERIALVAL I VÄRMESYSTEM : En jämförelse av rörmaterial i vattenburna värmesystem
The thesis aims to compare differentpiping materials in heating systems interms of cost as well as to illustratethe impact of energy characteristics ofdifferent materials over its servicelife. The methods used for costcalculations regarding piping are alsoto be examined to highlight thedifferences between template basedcalculations and more carefully executedones. The work is delimited to discusspipes of steel, copper, plastics andcomposites. The aim is that the resultcan be compiled to illustrate the prosand cons of various materials whenevaluating investments.The main object of the survey is part ofa heating system in the office-block KVSommaren located in southern Stockholm.The configured piping system is designedwith the mentioned piping materials andis used to make up the data for flow andcost calculations. The differentmaterials are calculated in both aconventional manner with a supplementarycost for additional fittings and with amore accurate quantification of thecomponents.
Vi och dom - Invandrarungdomar och de auktoritära makterna : En genomgång av hur det auktoritära presenterades och användes i ungdomsromaner under 1970-talet och början av 2000-talet
Syftet med min undersökning är att ta reda på hur elever med spanska som främmande språk upplever kommunikativa aktiviteter i en samtalsmodul. Frågorna är: hur viktig är elevernas exponering för de kommunikativa aktiviteterna (input) i en samtalsmodul med avseende på språkinlärning och hur viktiga är dessa aktiviteter för deras affektiva filter? Jag har använt mig av en enkät för att få svar på mina frågeställningar. Undersökningen har varit kvalitativ och den visar att majoriteten av informanterna anser att exponeringen för kommunikativa aktiviteter (input) i samtalsmodulen spelar en viktig roll för deras språkinlärning och de flesta upplever detta som positivt för deras kommunikativa förmåga. Informanterna upplever också att de är motiverade att delta i modulens aktiviteter eftersom modulen skapar en positiv miljö som främjar en känsla av förtroende och språklig säkerhet. Jag drar därför slutsatsen att aktiviteter i samtalsmodulen främjar deras affektiva filter..
Att kommunicera på spanska i en samtalsmodul : En studie av elevers uppfattning om en kommunikativ aktivitet
Syftet med min undersökning är att ta reda på hur elever med spanska som främmande språk upplever kommunikativa aktiviteter i en samtalsmodul. Frågorna är: hur viktig är elevernas exponering för de kommunikativa aktiviteterna (input) i en samtalsmodul med avseende på språkinlärning och hur viktiga är dessa aktiviteter för deras affektiva filter? Jag har använt mig av en enkät för att få svar på mina frågeställningar. Undersökningen har varit kvalitativ och den visar att majoriteten av informanterna anser att exponeringen för kommunikativa aktiviteter (input) i samtalsmodulen spelar en viktig roll för deras språkinlärning och de flesta upplever detta som positivt för deras kommunikativa förmåga. Informanterna upplever också att de är motiverade att delta i modulens aktiviteter eftersom modulen skapar en positiv miljö som främjar en känsla av förtroende och språklig säkerhet. Jag drar därför slutsatsen att aktiviteter i samtalsmodulen främjar deras affektiva filter..
Produktspårning med RFID : Konceptutveckling och utvärdering
The aim of this thesis was to investigate the possibility of integrating an item tracking systemwith a monitoring system currently under development at Fifth Generation Technologies (P) Ltd.A literature study of RFID technology and the networks ZigBee and MiWi was done. Based onthe literature study a concept for a distributed system was developed.The concept is to have several RFID readers placed in the area where tracking is to be performedand allow them to communicate with each other through wireless communication. The RFIDreaders shall be able to form zones and filter the data that is forwarded from the zones to theservers and thus perform some of the work that the server would normally have to do. Theconcept has been evaluated by prototype development and testing. The prototype uses an ultrahigh frequency RFID reader and a MiWi network.The test indicated some limitations with the selected technologies.