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1078 Uppsatser om Lubrication free - Sida 11 av 72
Genetisk analys av data från fölbesiktning och jämförelse med resultat vid treårstest :
More than 1000 Swedish Warmblood foals are shown every year at foal inspections which are arranged around the country. Six traits are evaluated at these inspections: type, head-neck-body, correctness of legs, walk, trot and canter. No previous genetic studies have been done on the data from these evaluations. The purpose of this study was to do genetic analyses of the traits which are evaluated at foal inspections. The purpose was also to see if there are any correlations between the results of the foal inspections and the results from the tests of three-year-old horses.
Oljefilmens tjocklek mellan kolvring och cylinderlopp
Hägglunds Drives in Mellansel, Sweden, manufacture radial piston hydraulic motors foremostwithin applications in the industry. These motors have several sliding contacts, one of these, isthe contact between piston ring and cylinder bore. The radial piston hydraulic motors advantageis to produce high torque in very low rotation velocity, this result in that the maximum slidingvelocity between piston ring and cylinder bore, during the whole stroke, is very low. Theconsequence of this low sliding velocity is that the contact between piston ring and cylinderbore, during the whole stroke, is bound to the boundary lubrication regime. This result in, thatthe piston ring is exposed to wear, thus affect the service life of the complete hydraulic motor.To minimize wear of piston ring, it is essential to determine the oil film thickness between thepiston ring and cylinder bore.
Två linsrengöringsmetoders påverkan på hornhinnan i samband med användande av kontaktlinsvätskan Opti-Free® Express®
Syfte: Studiens syfte var att jämföra två linsrengöringsmetoders påverkan på hornhinnan. Studien jämförde tillverkarens rekommenderade användningsinstruktioner för Opti-Free® Express®, med den alternativa rengöringsmetoden att gnugga linserna, något som ofta rekommenderas av optiker.Metod: Deltagarna sågs vid två tillfällen för utvärdering av eventuell påverkan på hornhinnan. Värdena som återfanns vid första tillfället fungerade som ett utgångsvärde. Samtliga fynd dokumenterades, graderades och poängräknades efter vilken typ av staining samt utbredning. Cornea delades in i fem regioner; centralt, superiort, inferiort, nasalt och temporalt.
Lantbruksföretagets utveckling av ny verksamhet : en studie av fem lantbruksföretag
The structural rationalization of rural firms in Sweden has led to many new creative ways of developing companies. The agriculture sector is characterized by the need of capital in form of buildings, labor and inventory. The rationalization process has led to free capacity in rural firms when new technology make buildings and inventory not longer necessary for the production process. To get a better cost coverage this free capacity can be used to start-up new business areas that help the rural firm to growth.The study aims to identify factors that motives entrepreneurs in rural firms to develop new business areas. The purpose is also to analyze driving forces that lies behind development of rural firms and the forces that support or not support development in rural firms.The study is built upon five cases that all can be categorized as firms with different size and orientation.
Livet efter döden : Svenska tidningar anpassar sig till en digital framtid
The media industry in general and the newspaper in particular is going through major changes ? technological, logistical, economical ? due to the dropping sales and width of the printed daily newspaper. Few organisations have been spared the necessary rationalizations and cut-downs in staff. All of them are expected to produce more and better content, in more and new channels and platforms, with less resources. Some have been preparing for this a long time, others have never entered the digital world of news.
Skriftligt och muntligt berättande hos vuxna i åldern 30-80 år: påverkar ålder berättande?
This study aimed to investigate written and oral narrative in adults. The participants consisted of 30 subjects aged 32-79 years. They produced one picture elicited and one free narrative, both written and orally. The written narratives were recorded in a keystroke logging program and the oral narratives were transcribed orthographically. Data from all the narratives were analyzed according to: number of words, words/minute, active writing time, total process time, number of characters and number of characters in the final text.
Jag är hel! Detta ska ingen ta ifrån mig. En berättelse om drogupplevelser
The aim of this study is to highlight drug experiences and the significance our interviewee?s ascribe to their drug experiences in conjunction to their everyday lives. In the concluding chapter of this study we have used the collective experiences of the participants to allow us to engage in a dialogue of why it is important to acknowledge the attributes and needs an individual attaches to his/her perspective drug in the field of social welfare in Sweden. Symbolic Interactionism as a theoretical approach is used as the framework for understanding responses of participants in this study. The word ?experience? is a comprehensive concept for the sensations that an individual feels.
Svensk Dagspress - Dressed for Success? : En kvalitativ undersökning om dagstidningens framtida utveckling i sökandet efter en fungerande affärsmodell
The digitalization of the media industry has involved great changes for the Swedish daily press. Instead of subscribing on a daily newspaper, more people tend to read newspaper's free edition online. The recent recession has contributed to strike hard against the newspaper's economy. This is the problem our research is based upon. How will the newspaper develop and which measures have to be done to get a well functioning business model that is suited for future conditions?We have made qualitative interviews with Swedish newspapers: Göteborgs-Posten, Norrköpingstidningen, Sydsvenskan and with the danish newspaper Politiken.
Smörjning Av Lager
The work thesis was performed at Assalub a company which is situated in Åtvidaberg. The company works with developing, manufacturing and marketing equipment for handling of lubricants for light and heavier industry. The work thesis it is based on a inquiry Assalub got from MacGregor which is a company within cargo solution, from port to offshore system.For unloading grain and other material from the ship cargo it is used combined inlet feeder and screw conveyor, there the inlet feeder is drilling down through the cargo and feed the screw conveyer with material to further destination. At the bottom of the screw conveyer and the inlet feeder there is a bearing that keep the parts together. However the lubrication of the bearing must be made manually.
Utvärdering av en ny typ av lagerinbyggnad för traktionsmotorer
The thesis evaluates a new kind of bearing arrangement in a traction motor that ABB hasdeveloped. Since the arrangement is designed in a new and innovative way it needs to beevaluated to see if it is safe to use. In today?s traction motors, bearings with a big internalclearance (C4-clearance) are used. The basic idea of the new arrangement is to reduce the fitsbetween the bearing and shaft/house.
Lekens magi! : Synen på lekens betydelse för lärandeprocesser bland pedagoger på en Reggio Emilia- respektive Montessoriförskola
This study deals with play and the importance of meaning of play in the learning process. The aim is to look in to and analyze four preschool teacher´s beliefs and views about the importance of play for children´s learning and development. The study looks at two different preschools, one based on Reggio Emilia- and the other on Montessori- pedagogy, and the aim is to compare the different views and ways of working that the preschool educators have.The theoretical basis for this study is both rooted in a socio-cultural and constructivist perspective, and deals with the relationships between theoretical concepts mean as play, learning, way of working and pedagogy.The study is based on qualitative research methods that consist of interviews and participant observations. The person?s participants in the study consisted of four active preschool educators, who work in two different preschools.The results of the investigation show that the educators have similar views on the importance of play for the children´s learning process, and this also applies to their way of working.
Effekten av kvävegödsling på gasproduktionen vintertid i boreala sjöar
To investigate effects of nitrogen on in-lake CO2 and CH4 production during winter, three pair of lakes was subject for a fertilizing experiment in which one lake in each pair was fertilized with nitric acid (HNO3) directly into the water column in the summer of 2012. The lakes in each pair are assumed to be morphologically, hydrologically and biologically similar, that is, the non-fertilized lakes are considered references. The pairs do differ in one major way by being progressively less humic, going from around 25 mg/l to 10 mg/l DOC. Sampling and analysis was carried out at the end of the frozen period in 2013. Results show a significantly higher concentration of both CO2 (p<0,001) and CH4 (?=0,1, p=0,053) between impact and reference sites in the two less humic pairs.
Att stärka familjen: En studie av hur föräldrastöd kan stärka föräldrar i sitt föräldraskap
In Gällivare municipality there is a drogpolitical plan which goal is to provide parentsupport for the municipalities parents, make sure the children get a schooling that is evolving and to provide a vide variety of activities for the children?s free time. There should be a possibility for children to have healthy second natures. There should also exist environments that are free from alcohol. At those restaurants that serve alcohol a responsible serving of alcohol should be performed.
Statusbedömning och förbättringsförslag för startkedjemaskineri, startkedja och linspel för stränggjutningsmaskin
The main goal with the master thesis has been to do a status evaluation of the chain machinery with its start chain and wire to secure the production on a short basis due to that a reconstruction is not planned at this time. An evaluation of the condition of the start chain and the rollers in the chain depository has been done. An offer has been requested for a new start chain and the evaluation of the start chains may be a basis for the decision taking. The production has been able to go on, although it has arisen some problems which have been difficult to find the causes for. There is no gathered ?picture? of the machinery status and a mapping of each machinery has been compiled of comprehensive logs.
Biologiska behandlingsmetoder för rening av rejektvatten från biogasproduktion
In this literature review the characteristics of two free-floating macrophytes, water hyacinth (Eichhornia crassipes) and duckweed (Lemna sp.), and two microalgae, Chlorella and Scenedesmus, have been examined regarding their suitability as efficient nutrient removers in the treatment of wastewater with high levels of nutrients and suspended solids from a biogas plant in Loudden. The needs required for the plants to be able to grow in wastewater and the amounts of biomass they can produce have also been studied. The results show that Chlorella is capable of a very high uptake of nutrients in photobioreactors with high nutrient loadings. With an ammonia uptake maximum value at 10900mg/m2/d Chlorella outshines the other organisms in this study. The test organism that performed the closest to Chlorella in terms of nitrogen uptake was water hyacinth with an uptake about 1602mg/m2/d.