Sökresultat:
961 Uppsatser om Base cations - Sida 1 av 65
pH-sensitivity in boreal streams ? the influence of landscape characteristics
The goal of the society to increase the proportion of renewable energy has led to an increased demand of bioenergy e.g. forest biomass. However, there are concerns that removal of biomass will lead to decreased base cation concentrations in the soils and acidification of streams. In order to find in which types of landscape removal of branches and tops could have such negative effects, this study aims to analyse the relations between pH-sensitivity and landscape variables in the Bothnia Bay water district. GIS and digital geographical data were used to analyse the landscape in subcatchments.
Forskningsområdet biblioteks- och informationsvetenskap vid Högskolan i Borås ? En bibliometrisk studie av den intellektuella basen 2001?2006
The aim of this study was to map the intellectual base at the Swedish School of Library and Information Science (SSLIS) at the University Collage of Borås, and to compare this intellectual base to the intellectual base of the research area Library and Information Science. This was done by analysing the citations in publications published, between the year of 2001 to the first quarter of 2006, by researchers at the institution, using the technique of author cocitation analysis. Cluster analysis and multidimensional scaling, statistical techniques that are traditional i the author cocitation analysis, formed an objective map of the intellectual base at the SSLIS. This map was then compared with three prior studies, that used the same technique to map the intellectual base of the research area. The result shows that the map of the intellectual base at the SSLIS consists of the specialities: user studies, library studies, culture/cultural policy, information retrieval, bibliometrics and information in organisations.
Ränteavdragsbegränsningsreglerna : Är den svenska skattebasen skyddad?
This thesis treats the extended Swedish rules regarding deduction limitations on interest. The purpose for this thesis is to investigate whether the interest deduction limitation rules have potential to protect the Swedish tax base. The thesis also assesses whether the options presented how the extended rules could look liked had been better to protect the Swedish tax base. Furthermore thin capitalizations rules have been evaluated if this is a better method to protect the Swedish tax base.In 2009 the Swedish deduction limitations rules on interest came in to force to protect the Swedish tax base. Despite these rules companies was still able to avoid Swedish tax and therefore threatened the Swedish tax base.
Batterilyft för telekom basstationer
The purpose with this thesis work was to design and build a technical aid for installingbatteries in telecom base stations. Today that job is done manually, since there is noequipment on the market for that purpose. Installing batteries in base stations manually isa very tough job.To get ideas for possible solutions a preliminary study on existing lift aids was done.From the preliminary study the conclusion that some kind of overhead crane would besuitable for the task was drawn. After that a lift for installing batteries in base stationswas designed, built and tested. The tests show that it is possible to minimize heavy liftingwhen installing batteries in telecom base stations, at a relatively low cost.ii.
Syra-bas och laktat hos kolikhästar :
Ten colic horses and seven healthy horses were included in a prospective study aiming to evaluate acid-base disturbances in colic horses. Traditional acid-base methods and measurements of lactate were used to study prognosis and changes before, during and after surgery. Strong ion gap, anion gap and base excess were compared to evaluate their ability to predict lactate.
Of the ten colic horses that went through surgery, seven survived, two were euthanised and one died. Significant differences in plasma lactate levels were seen between the group of survivals and non-survivals, p=0,000025. No differences were seen in pH and base excess between the two groups.
"Jag letar efter tjuven så letar du kapsyler" : En undersökning om vad barn kan lära sig genom pedagogiska dataspel i förskolan
This thesis treats the extended Swedish rules regarding deduction limitations on interest. The purpose for this thesis is to investigate whether the interest deduction limitation rules have potential to protect the Swedish tax base. The thesis also assesses whether the options presented how the extended rules could look liked had been better to protect the Swedish tax base. Furthermore thin capitalizations rules have been evaluated if this is a better method to protect the Swedish tax base.In 2009 the Swedish deduction limitations rules on interest came in to force to protect the Swedish tax base. Despite these rules companies was still able to avoid Swedish tax and therefore threatened the Swedish tax base.
Westhelicopter AB Aircraft Technical Status Report
Westhelicopter INC. has an aviation workshop providing qualified helicopter maintenance in accordance with PART-145. Maintenance and administrative base is situated in Luleå at Kallax airport. The types that Westhelicopter INC are currently authorised to service are: Eurocopter AS 350 Base/Line Maintenance, Eurocopter EC 120 Base/Line Maintenance and Robinsson R44 Base/Line Maintenance. The thesis work has been to make new maintenance programme for Westhelicopter INC. This maintenance programme will be used to follow-up the time of the components, service bulletins and ADs.
Sänkta sjöars inverkan på ytvatten i Västerbottens kustland : Samband mellan sänkningsnivåer och vattenkemi i sjöar på sulfidrika sedimentjordar
Lake lowering in sulphide-rich areas is currently a major environmental impact for surface water. This study focuses on whether there is a relationship between a gradient of lake lowering and surface water impacts in areas of sulphide-rich sediments, in order to better understand their contribution of heavy metals and sulfuric acid. Also, is it a reasonable method to use the reduced lake area in order to quantify the gradient? The survey was conducted by collecting water samples from reference lakes and lowered lakes from south to north in coastal areas within the county of Västerbotten. Water samples were then analyzed for TOC, pH, conductivity, anions, Base cations, alkalinity, acidity, sulfate, Al, Cd, Fe, Mn, Cu, Zn and Pb.
Knapphet och Selektivitet: Påverkan på attityd och värde
The study examines selectivity of the customer base and scarcity of a product?s effect on attitude and value towards a product or service. A questionnaire study is made from three different situations. The result varied depending on the situation; however it was found that selectivity of the customer base and scarcity has a great impact on the attitude and the perceived value towards a product or service. Selectivity of the customer base was found having the highest level of impact on both attitude and perceived value.
Idén om en värdegrund inom äldreomsorgen : En kvalitativ studie om hur enhetschefer och omsorgspersonal uppfattar en ny lag om värdegrund och dess implementering.
This study discloses home-care organizations in one municipality in Sweden and five units work with implementing the social services legislated value base for elderly people. The aim of this study is to gain an understanding of personnel and managers perception of the value base and its implementation in the practical work with the elderly. A qualitative method has been used to analyze the questions raised by the aim of this study. The empirical data was retrieved by semi-structured interviews with managers and their personnel in homecare service The empirical data was analyzed on the basis of the neo-institutional theory, Michael Lipsky?s theory concerning street-level bureaucrats and previous research regarding implementation of social policy and the practical home-care work.
Elektromagnetisk skärmning genom mekanisk omkonstruktion
This is a master degree thesis at Royal Institute of Technology (KTH) betweenÅngpanneföreningen and Programma. KTH is the examiner, Programma is the client andÅngpanneföreningen is mentor for this project.Programma has a product called TM1800 that has problems with EMC; the problem is thatthis product does only pass the CE-check with a small safety margin. This problem can besolved by reducing the radiation from the electric components in the product or by reducing offix base frame. In this degree thesis the focus is only on mechanical redesign.The main problems right now depends on the long distance between the screws, there is anisolating layer on most of the parts and the forces between the joints are too small. The mainfocus is to solve these three problems.The best solutions are when the whole base frame is more or less redesigned instead of onlyredesigning some of the connection points.
Förekomst och lokalisation av gingivala retraktioner hos patinter mellan 20-29 år som behandlas på Tandhygienistprogrammet i Kristianstad
ABSTRACTThe aim of the study was to examine the prevalence and the location as well as the registration of gingival recessions among patients between 20-29 years of age, who are treated on the Dental Hygienist Programme at the University of Kristianstad. The study was performed as a recording study, where the first page of the base record paper was examined. We examined 295 base records. The result showed that gingival recessions only were registered on 3 % (n=10). Most of the injuries, 53 % (n=157), had been registered as toothbrush trauma.
Implementation av ett kunskapsbas system för rough set theory med kvantitativa mätningar
This thesis presents the implementation of a knowledge base system for rough sets [Paw92]within the logic programming framework. The combination of rough set theory with logic programming is a novel approach. The presented implementation serves as a prototype system for the ideas presented in [VDM03a, VDM03b]. The system is available at "http://www.ida.liu.se/rkbs". The presented language for describing knowledge in the rough knowledge base caters for implicit definition of rough sets by combining different regions (e.g.
Skolans värdegrund : En studie om elevernas uppfattningar av grundskolans värdegrundsarbete
The purpose of this thesis is to investigate how students relates to and perceives the schoolswork with the value base. To answer my purpose has been two studies conducted. The first study aimed at finding out students' perceptions regarding the content and concretization of the value base and on their perceptions of participation and retention of this work. This study was conducted using a questionnaire survey.The second study has aimed to highlight the approach embodied by the schools' plans and treatment plans. This sudy has been conducted trough a review of policy documents available on the websites of education departments, municipalities and schools.
Allanblackia stuhlmannii ? a tree under current domestication: what are the soil requirements?
Allanblackia is a genus of trees that grows in the rainforests of West, Central and Eastern Africa. Its big fruits contain seeds very rich in oil which has been used by
local communities for cooking and making soaps. The native stands are threatened by overexploitation and the demand for the oil is much greater than the supply.
Domestication programs, aiming at introducing the trees to small holder agroforestry systems, have been started for some of the species. The main aim of this study was to investigate the soil requirements of Allanblackia
stuhlmannii in terms of chemical and physical parameters, as revealed by the soil conditions in native stands. Another aim was to see if these varied along an altitudinal transect.