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2037 Uppsatser om Motor activity - Sida 20 av 136
Produktivitet vid selektiv mekaniserad bioenergiröjning av eftersatta röjningsbestånd :
In Sweden, harvesting pre-commercial thinning (PCT) stems for energy purposes is a interesting way of financing the high cost of preparing dense stands for a profitable first conventional thinning. This concept can be labelled bioenergy thinning.
The aim of this study was to quantify the productivity of a Vimek 404R light harvester with an accumulating Naarva-Grip cutting head during the bioenergy thinning of a self-regenerated stand west of Sunnansjö in Dalarna. The stand was birch-dominated, contained 15 371 stems/ha, and measured on average 4,6 cm Dbh and 7 m tall. Even though the driver was well experienced with the machine, the stand in question was the first one that he ever thinned in this manner. Nevertheless, the driver strived to accumulate as many stems as possible during each crane cycle and chose to cut taller stems in half so as to make the handling and forwarding of the harvested stems easier.
Uptake of 137Cs by fungi and plants due to potassiumfertilization in Heby municipality in response to theChernobyl nuclear accident
The fallout from the Chernobyl nuclear accident resulted in large deposits of caesium, iodineand strontium as well as noble gases in various parts of Sweden. 137Cs has a radioactive halflifeof about 30 years and is therefore one of few radio-fission products remaining inmeasurable quantities in the Swedish soil. Radiocaesium behaves similarly to potassium insoil-plant systems and is easily absorbed by plants. It is important to understand how 137Csbehaves in different ecosystems in order to minimize the risk toward humans.The aim of this study was to determine how potassium fertilization influences radiocaesiumcontent in different forest plants and fungi. Potassium fertilizer was spread once in 1992 withapproximately 200 kg KCl per ha.
Smärtans påverkan på fritidsaktiviteter : En intervjustudie med personer med fibromyalgi
Syftet med examensarbetet var att beskriva hur personer med fibromyalgi upplevde att fritidsaktiviteter påverkades av smärta. Som datainsamlingsmetod valdes en intervju. Semistrukturerade intervjuer genomfördes med tio kvinnor. Frågorna utformades från centrala begrepp i The Model of Human Occupation. Inklusionskriterierna var att deltagarna skulle ha diagnosen fibromyalgi och vara i arbetsför ålder.
Analys av inkörd motor
Det här examensarbetet går ut på att utreda vilken påverkan oljeval och inkörningsmetod har på tätning mellan kolvring och cylindervägg i en fyrtaktsmotor. Arbetet har utförts på en motorcykel av märket Honda och modellen heter CBR 954 RR årsmodell 2003. Det diskuteras dagligen i tidningar, på internet och i garage runt om i världen om vilken typ av inkörning som är effektivast för att få en motor att gå bra och hålla länge. Vissa bil- och mctillverkare har helt tagit bort sina inkörningsrekommendationer medan andra fortfarande har kvar rekommendationen att man ska köra lugnt och på låga varvtal under ett visst antal mil. Eftersom att inkörningen påverkar väldigt många parametrar så finns inte möjlighet att testa hur olika oljeval och inkörningsmetoder påverkar alla dessa parametrar.
SiLu : Riktlinjer för spelmotor
Spelmotor är benämningen på den komponent som hanterar en del av mekaniken i ett datorspel. Förutom funktioner för grafik, fysik etc. finns också funktioner för rörelser, interaktion med världen etc. I detta examensarbete går vi in på hur en spelmotor för morgondagens mobiltelefon kan se ut, samt vad dagens mobiltelefoners hårdvara och mjukvara saknar för att dagens PC-spel ska kunna portas till dem. Stödet för att spela avancerade spel på mobiltelefoner växer ständigt och inom några år bör hårdvaran vara ungefär densamma som på PC.
Deaktivering av metanisering katalysatorer
A titania-supported nickel catalyst was prepared and tested in methanation in order to evaluate its catalytic properties (activity, selectivity and specially, activity loss), and compare it with an alumina-supported nickel catalyst.The titania-supported catalyst did not only show higher stability than alumina, but also presented a different cause of deactivation, carbon formation. In addition, a kinetic model was obtained for the titania-supported catalyst, and a study of the effect of different operating conditions (temperature, composition and partial pressures of synthesis gas and water) on the deactivation rate and carbon formation of this catalyst was performed.
Samband mellan självskattad fysisk aktivitetsnivå och aktivitetsregistrering via dagbok
Syfte: Studiens syfte var att undersöka samband mellan hur universitetsstudenter skattar sin fysiska aktivitetsnivå och hur de registrerar aktivitetsnivå med hjälp av dagbok samt att se om de kom upp i ACSM (American College of Sport Medicine) och WHO´s (World Health Organisation) rekommendationer.Metod: Studien hade en icke experimentell, deskriptiv och korrelerande design där 26 försökspersoner, två män och 24 kvinnor, rekryterades via anslag. De fick först svara på en enkät och därefter registrera sin aktivitet via en 7-dagars aktivitetsdagbok.Resultat: Studenterna ansåg inte att de hade en stillasittande livsstil och alla deltagare utom en ansåg sig komma upp till ACSM´s rekommendationer av fysisk aktivitet 30 minuter per dag av måttlig intensitet alla dagar i veckan. Trettiofem procent kom inte upp i WHO´s rekommendationer och av dessa överskattade 67% sin fysiska aktivitetsnivå. Sextiofem procent kom inte upp i ACSM´s rekommendationer och av dessa överskattade 94% sin aktivitetsnivå.Konklusion: Studenterna hade en låg fysisk aktivitetsnivå utifrån ACSM´s rekommendationer och majoriteten av de som inte levde upp till WHO och ACSM rekommendationer överskattade sin fysiska aktivitetsnivå. Det krävs dock mer omfattande studier för att dra några generella slutsatser då denna studie hade en skev könsfördelning och ett lågt antal deltagare.Keywords: Self-estimation, Perception, Activity diary, Physical Activity level, Overestimation. .
Guldlock och de tre björnarna, en saga utan familj : En intervjustuide med sex personer verksamma inom förskolan angående skönlitteraturens roll i verksamheten och behovet av icke-heteronormativ skönlitteratur
Literature is an important part of the daily activity in preschool and it is also a powerful tool for reinforcing different norms.The purpose of this study is to explore, through qualitative interviews, for what purpose pedagogues in preschool use literature in their daily activity and what needs these pedagogues see for non-heteronormativity literature. The study also relates the needs that pedagogues see with the basic values presented in the Swedish National Curriculum for preschool.Literature is used in preschool for a wide range of purposes including; enriching the language, getting familiarized with the written language, show diversity, reinforce norms on how to be a good friend, as a starting-point for discussion, working with a theme or to have a fun time.The needs that the pedagogues see for non-heteronormativity literature can be divided in to three categories namely there is always a need, there is only a need when somebody requires that kind of literature to identify themselves with or there is only a need when somebody is being discriminated because of not belonging to the heteronorm.The need for non-heteronormativity literature being there always corresponds with the basic values in the Swedish National Curriculum for preschool and the recommendation that the basic values are visible in the daily activity of the preschool. The other needs doesn?t correspond with this, but it matches other parts of the Swedish National Curriculum for preschool..
Analys av webbservertrafik
ABSTRACT This essay is about traffic analysis of Web servers. The purpose is to investigate if companies analyse the traffic on the Web server and if they use this information to create more than simple statistic reports. The questions that we will answer are the following: ? How common is traffic analysis on the Web server among companies? ? Is the Web administrator limited in analysing the Web traffic, if the company has the website on a Web hotel? ? Does the company uses the results they get from analysing the traffic on the Web server for updates and changes on the Web page? To answer these questions we made a questionnaire investigation by telephone interviewing the companies? webmasters. The extent of the investigation was 20 companies in Blekinge.
En kreativ mötesplats ? Kristinebergs bibliotek och öppna förskolas relation till 1970-talets samhällsdiskussion
The purpose of this master?s thesis is to examine the activity at the library and preschool at Kristineberg (a part of the town of Borås) and its underlying approach. How do the activities agree with the ideological attitudes of the 1970s? To answer these questions I have carried out a case study based on qualitative interviews. The theoretical background includes ideas of the library, the community center and the cultural activity at the library.
Tankar om ett kök
The kitchen is one of the most important rooms in our homes. It is a place for social engagements, meetings between people and activity. How the kitchen looks today is a concept sprung from the Swedish kitchen standard of 1952. Eventhou this standard no longer exists it is a model of how kitchens are designed today. The kitchens most often sold today come from one of four major kitchen manufacturers in Sweden.My thesis investiges an alternative kitchen concept.
En studie om spridning av modeller inom produktkalkylering
Syftet med vår studie är att finna faktorer till spridningen av
kalkylmodellerna Activity-based costing (ABC), Target costing (TC) och Kaizen
costing (KC). Detta gör vi genom att använda oss av kvalitativ ansats och
genomföra intervjuer vid sex tillverkande företag. Vi kan se influenser av
spridningen av modellerna ABC, TC och KC i studiens företag. Det har visat sig
att företagen tillämpar ?traditionell? produktkalkylering med inspiration av
ABC-modellen.
Pensionärers motionsvanor med fokus på styrketräningens roll för dem
Introduction: Elderly people have much to gain when it comes to physical activity andresistance training. Ageing is a process that every human being has to go through. The mostimportant physical attributes changes, when it comes to handle everyday life and ailment thatusually occurs in the later stages of life. Physical activity and resistance training may help thecommon problem among the elderly, when it comes to cope with issues of pain and strenuouseveryday life that occurs under this ailment. Objective: To identify a senior citizen´sperception about physical activity and attitudes about resistance training.
Use of feline TK1 as a biomarker in disease monitoring
Serum thymidine kinase 1 (TK1) activity is used as a tumor marker in disease monitoring in veterinary and human medicine. TK1, an intracellular enzyme, is involved in a salvage pathway of DNA precursor synthesis.
TK1 is used in DNA precursor production by catalyzing the transfer of the gamma-phosphate-group from a phosphate-donor to the 5?- hydroxyl-group of thymidine forming thymidine-monophosphate. Nucleoside monophosphosphates are finally converted into thymidine-triphosphates. TK1 activity significantly rises in the G1 and the S phase of the cell cycle.
Ridskolehästens hållbarhet : hur länge stannar hästarna i verksamheten?
SUMMARYThe riding school horse is the base for the riding school. Riding schools are looking for a suitable horse that meets their demands for exterior, age, education, temperament, price and sustainability. Many different aspects may define the sustainability of the riding school horse; of them is how long life the riding school horse has in riding school activity. Previous studies have shown that the riding schools requirements are 8-12 years life span in the riding school.The purpose of this study was to describe the Swedish riding school horse life span in riding schools and at what age the riding school horses were recruited, disposed and the reasons for disposal. Information about the riding school horse life span in riding schools and reasons for disposal can provide important understanding regarding the importance of health for the riding school horse, riding school economy and profitability in the riding school.