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1389 Uppsatser om Filter materials - Sida 10 av 93
Sensorfusion för undervattensrobot i kärnteknisk miljö med Kalman filtrering
WesDyne TRC AB is a fully owned subsidiary of the global WestinghouseElectric Corporation. WesDyne is a world leader in non-invasive methods for theinspection of nuclear power plants. One of the inspection platforms used to scanfor defects in and around the welds in the reactor vessel is called the T-crawler.The T-crawler operates under water in a radioactive environment by stepping onthe vessel (reactor tank) inner wall using suction cups. The environment is harshand many traditional positioning sensors are not suitable for implementation. Thisthesis investigates the possibility to use a gyroscope and a pressure sensor tocreate an alternative and independent positioning system.
Tillförsel av använda fosforfilter påverkar inte tillväxten eller fosforupptaget hos korn
The eutrophication of inshore seas, lakes and watercourses is mainly due to leaching of nitrogen and phosphorus (P) from agriculture. Many efforts are made to reduce the lea-kage of phosphorus in Sweden and the Baltic Sea countries. Phosphorus is also a finite resource and the mining of good quality raw material gets more and more difficult. Se-dimentation dams in combination with filters is one relatively new method to separate P from run-off and drainage water from agricultural land. This study was a part of an IVL Swedish Environmental Research Institute?s project which tests the capacity and func-tion for separation of phosphorus in four phosphorus filters.
Småskaliga vattenreningsmetoder : några exempel
Syftet med denna utredning var att välja ut och utveckla kommunikationsövningar under det första stadiet av en gestaltningsprocess mellan landskapsarkitekt och brukare. Genom att undersöka olika metoder/övningar såsom att svara på en enkät och att se på bilder framkom det att övningarnas styrka låg i att de var flera och kombinerades på olika sätt.
Spill från rundbalspress med och utan knivar :
When harvesteing ley there is always mechanical losses from the harvest machines. During
the last years the roundbalers with knives,cutting the material-are more common, This use
increase the mechanical losses of material.
MATERIALS AND METHODS
The roundbaler which used in this test was a Krone Vario Pack 1500 Multi Cut. This
roundbaler has 17 knives. The theoretical length of cut was 64 mm. During the test we
stretched a rubber tarp under the balechamber and collected the materials which fell down
from the balechamber.
Så funkar avdelning C: en kvalitativ undersökning av användbarheten av SAB-systemets religionsavdelning i dagens svenska samhälle
The purpose of this thesis was to find out whether the main class C (religion) in the Swedish classification system Klassifikationssystem för svenska bibliotek is well adapted to classify materials published in or imported to Sweden, and handled by Swedish libraries today. The questions we put to ourselves were:1. How easy to understand, and how useful is the main class C religion today?2. What, in the main class C, is satisfactory?3. What, in the main class C, is inconsistent, anachronistic or incorrect?4. What, in the main class C, is in need of change or renewal?The method that was used was a number of interviews with librarians and cataloguers. We have interviewed eight librarians from six different libraries, of different types, but all with a relatively large collection of religious materials.Though all of our respondents have expressed a feeling that all the major religions deserve equal treatment in the classification system and a similar division of space, after some pondering on the subject, our respondents have agreed that a larger space for Christianity is warranted considering the composition of the current collections and publication. Our respondents have in some cases expressed that there is a lack of instructions as to how the subdivisions of the main class C (religion) is meant to be used.
Barns rättigheter I skola och frivillighetsorganisationer : En jämförande studie mellan Sverige och Östafrika
My purpose in this paper is to study teachers' work in reading and writing in primary school and special school. I want to find out if they use the same methods, strategies and materials to help students learn to read and write. I will find out the answer to my purpose by performing two qualitative observation and two qualitative interviews. Lundberg (2010) is the researcher I relate to during my study. Through observation, I see how teachers work with students in the classroom during a lesson in the Swedish language. During the interviews, I received answers to how teachers work with language, the materials, methods and strategies they use. I found out that teachers use specific strategies when they help their students. They use a work material that is tailored to curriculum in Swedish language and it is based on the phonics method. .
Levande material. En utforskande exposé över vårt förhållande till kroppen som organisk materia
In this project the author made an attempt to, in a short film, visualizean experience of the organic materials that our bodies consist ofand what becomes of it when we die. The intention was to dissect thismatter, break it down to see it in a simpler form and to explore ourrelationship to it, being part of a constant exchange between organicmaterials and having so much power over the environment and otherliving animals. At the very start, the idea was to deal with the relationshipdifferent people have with their bodies. Later in the process, a decisionwas made that the product would be communicating the author?sown experiences of the body materials after studying it and trying torecreate fragments and feelings of them.
Simulering av simulinkmodeller medExtended Kalman FilterTidsoptimering av integrering
Simulation of different systems can be done using a graphical model description of the system based on block diagrams. The simulation software Matlab/Simulink offers a lot of possibilities to describe a huge number of systems, which can be linear as well as nonlinear. The simulation using Matlab/Simulink is done by integration based on different kinds of numerical methods.When nonlinear Simulink-models are simulated, it is often interesting to apply a Kalman filter to handle the noise that may occur within the process as well as corrupting the measurement. However, application of such a filter leads to an extensive time-consumption despite using fast computers. The reason is that the existing Matlab functions are not constructed for time optimal evaluation.
Analys av tidsåtgång vid montering av aggregat på Haldex Barnes Hydraules
Haldex Barnes Hydraulics (HBH) is a company which produces hydraulic aggregates for use in forklifts, construction equipment, and trucks. The last two years the company has expanded. This has lead to an insufficient production of aggregates. Thus wishes HBH to increase their production without making to large investments.This report includes a now-state analysis of the problems and where they are. From this a further analysis of possible improvements are made.HBH works mainly with assembling and this is made manually.
SANNINGENS ÖGONBLICK En komparativ undersökning av ett stadsbiblioteks och en byggvaruhandels arbete med att möta sina besökare
The purpose of this thesis is to discuss how a Swedish public library approaches their costumers. I will show how a library interacts with their costumers compared to a business, which has a different economic work frame, a building materials supplier. My aim is to pinpoint differences and explore new methods for the library in order to improve their service.The theoretical frame of the thesis is based on Richard Norman's notion the Moment of truth. The moment of truth is the moment when a business has to convince their customer that they offer both the product, proficiency and service that the customer needs. Service encounters at two organizations have been observed and their differences and similarities compared.
Egyptens balsameringsteknik : en kemisk analys av organiska lämningar
This paper deals with the embalming process in ancient Egypt. Samples were collected from six objects from Medelhavsmuseet in Stockholm. The objects were one supposed ladle and five different contents from pottery. Fourier transform infrared spectrometry (FTIR) and gas- chromatography/mass spectrometry was used to characterize the components of the materials. The result was then correlated with previously made analysis of embalming materials to discover similarities.
Utvärdering av den nationella söktjänsten LIBRIS
LIBRIS is a national library search engine offering information about 6 million books, articles, dissertations and other materials held by Swedish university libraries, research libraries and public libraries. In December 2007 a new version of LIBRIS was launched, developed with focus on usability, simplicity and accessibility. This thesis examines how the new LIBRIS is used, what is working well and what could be improved and also what the users think of LIBRIS. The following report is based partly on a study of usability and partly on a series of tests where librarians, scientists, students and developers have executed a number of tasks while thinking aloud. The users also participated in an interview.
Either you're in or you're out...: Inkongruens och kreativitet - ett sätt att komma in?
The media landscape has exploded during the last decade, which has lead to a massive advertising clutter. Consumers defend themselves against this intrusive marketing by creating an advertising filter that sorts and blocks. These changing conditions have lead to new and tougher demands on creators and advertisers to create more efficient marketing communication that stands out in the clutter and penetrates the consumers? advertising filter. Many creators and researchers claim that creativity is the most efficient method to stand out in the clutter and generate sought communication effects.
Effektivisera materialflödet med hjälp av självgående truckar
The thesis that follows is performed in collaboration with Nitator in Oskarström.The factory in Oskarström focuses on laser cutting, robotic welding and surfacetreatment of steel for the automotive industry.The project aims to streamline the flow of materials in production by automatingthe movements of the forklifts, running to and from the interlayer, and betweenworkstations.The project started with a systematic literature search. The literature searchshowed the research position around the AGV-system. Also a review of studentliterature was made, so that a suitable method for practical implementation couldbe developed and applied. Selected method uses both quantitative and qualitativeapproaches, which is analyzed by using triangulation.The work has resulted in a modified layout of the current facility in Oskarströmthat can be used for the implementation of the AGV-system. It has also resulted inthe tender documents and profitability calculation from several of AGV-suppliers..
Konsolidering av v?vsp?nda papperstapeter: analys och metodutveckling
Printed and painted wallpaper on a weaved fabric backing was a common way to decorate homes in Sweden during the eighteenth and nineteenth centuries. Not much is written about the craftsmanship in relation to the hanging of these wallpapers and even less about the conservation of the objects. Even so, many wall segments remain in situ and in museums and are more often than not in dire need of conservation such as deacidification and consolidation. These are composite objects, consisting of cellulose materials with different properties along with adhesives and paints. Analysis of the materials is required to ensure safe handling and choice of conservation materials, and to establish a treatment plan which will be executed in several steps.
This thesis aims to identify these steps and develop a method for conserving the wall segments with suitable materials, preferably without altering the source material to any significant degree.