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1133 Uppsatser om Temperature response - Sida 23 av 76
Variation i temperaturrespons (Q10) vid nedbrytning av biopolymerer
Nedbrytningshastigheten för organiskt material i marken kan komma att förändras vid varmare klimat. I dagsläget råder dock oenighet om hur nedbrytningen av organiskt material kommer att reagera på förändrade temperaturer; forskningsrapporter pekar åt olika håll. För att kunna förutsäga framtida scenarier är det viktigt att vi får kunskap om hur organiskt material kan komma att påverkas. Om koncentrationen av koldioxid i atmosfären ökar och den globala medeltemperaturen stiger kan nedbrytningshastigheten för organiskt material öka. Detta kan leda till en positiv feedback loop där mer koldioxid avgår från marken till atmosfären.
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.
Talar kvinnor och män samma språk? : En intervjuundersökning av män och kvinnors vardagsspråk i Halmstad
The purpose of this study is to determine if and how male or female everyday languagesdiffer. The study is based on ten interviews with five men and five women living inHalmstad, who are between the ages of 22-29. The interview results were analyzed andcompared with previous research on the subject. The result shows that there is adifference between the male and female informants use of language. Women laughing,using italics, hedges, the word så ?so? and response signals to a greater degree than men.The reason may be that men and women basically use different conversation styleswhen they communicate, that men prefer a public speech, intended to provideinformation and knowledge.
Utvärdering av VAV i nybyggt kontorshus
VAV (Variable Air Volume) system has been studied in a newly constructed office-building. The goal for the study has been to evaluate how the ventilations system work in practice, if adjustments can be made to achieve an more energy efficient system and to evaluate if other alternative ventilation systems is to be preferred in the further.The degree project has been executed at Helenius Engineering Firm who is working with the environment, media systems, HVAC and energy in buildings. The building that has been studied is owned and operated by Akademiska hus.Literature studies, visits at site, inventory, review of system documentation, energy analyses, interviews, key figures, LCC, sand energy- and indoor climate simulations has been made to study the building. Where appropriate some tools from Six Sigma have also been used.How to achieve an energy efficient system and a pleasant indoor climate is studied with human health and well-being as base for the indoor climate requirements. Technical support systems such as ventilation systems have to be designed so that an acceptable indoor climate can be achieved.
Odour-mediated behaviour in codling moth, Cydia pomonella : do fermentation odours affect the attraction and oviposition behaviour in codling moth?
The codling moth, Cydia pomonella is a common pest in apple orchards and can be found worldwide. Feeding by codling moth larvae can cause a substantial decrease in apple yield. Control methods comprise for example the use of pesticides, viruses and pheromones. As a sustainable control method, pheromones have been successfully applied to disrupt moth mating behaviour. Other behaviours like foraging, search for mating sites or host finding could be potential targets for additional odour-mediated behavioural manipulation but need further investigations of the underlying odour stimuli and behavioural plasticity.
Many insects are attracted to the smell of fermenting fruit and associated microorganisms.
Mean value modelling of a poppet valve EGR-system
Because of new emission and on board diagnostics legislations, heavy truck manufacturers are facing new challenges when it comes to improving the engines and the control software. Accurate and real time executable engine models are essential in this work. One successful way of lowering the NOx emissions is to use Exhaust Gas Recirculation (EGR). The objective of this thesis is to create a mean value model for Scania's next generation EGR system consisting of a poppet valve and a two stage cooler. The model will be used to extend an existing mean value engine model.
Atopisk dermatit hos hund :
This student report is about canine atopic dermatitis
It includes a description of the immunologic mechanisms and how the reaction affects the
body. The symptoms are various, most common is pruritus, erythema and alopecia and directly associated with the immunologic reaction.
The diagnostic process includes symptoms, physical findings, differential diagnosis,
intradermal test and serological test.
The options of treatment are several and vary for each patient. The report includes
hyposensitization, medical treatment such as corticosteroids, antihistamin and cyclosporine, topical treatment, fatty acid supplements and environmental treatment.
The prognosis is individual for each patient due to their different response to the treatment.
It may take a while to find the right combination of treatments to achieve satisfactory
control of the disease..
Enkätundersökning hos medlemmar i Nätraälven Skogsägarförening
This report is produced with Nätraälven forest owner association. This forest owner association has been going through some changes the last years and therefore wanted to investigate what the members thought about the development. The main purpose of the study was to gain knowledge about the attitude of the members. The study was made with a questionnaire that was purposed to investigate the member?s opinion on their own cultivation and the view on Nätraälven as an organization.
The questionnaire was sent to 110 members.
Habitatval, migrations- och furageringsaktivitet samt homing hos gädda (Esox lucius) härstammande från Österby myr, Gotland.
In this study the spawning migration activity, habitat choice (depth and temperature), foraging activity, duration of stay in the spawning site and homing-behavior was studied for anadromous pike (Esox lucius) in the wetland Österby myr, Gotland.The spawning migration was concentrated to dusk and dawn, a homing behavior was confirmed and there was no significant difference between sexes with respect to duration of stay. A difference in habitat choice and small variation in foraging activity between individuals was established..
Fenomenet Poppe, mellan scen och skratt : En studie av Nils Poppes komiska skådespeleri utifrån en fenomenologisk utgångspunkt
Scholarly research on comical popular theatre is rare in the Swedish context even though the genre has attracted large audiences throughout the 20th century. Nils Poppe is one of the greatest Swedish actors in the comical genre and he is famous for his playful acting style. With my Master?s dissertation I aim to shed some light on both the genre and this great actor. Another aim of this Master?s dissertation is to gain understanding of what causes the audience?s laughter experiencing Nils Poppe?s comical acting.
"I believe it." : En luthersk-teologisk analys av Veronica Roths Divergent-trilogi.
The aim of this essay is to examine what happens when Veronica Roths Divergent-trilogy is read with a lutheran theological pre-understanding. Using reader-response theory and lutheran theology written for and in a post-modern context, three lutheran figures of thought are presented as one way of understanding the trilogy. The conclusion is that it is possible to reveal lutheran ideas concerning justification, guilt, forgiveness, mercy and self-sacrificing love in the Divergent-story. .
INVASION DIREKTMARKNADSFÖRING
Direct marketing is an area within marketing that is growing rapidly. Many companies has realised the benefits of using direct marketing, such as receiving direct response from customers and gaining a better customer relation. The growth within direct marketing means that traditional mass marketing today face harder competition than ever.
This thesis examines and look in to three well recognised Swedish companies use of direct marketing. Our main purpose is to establish how companies spend their marketing budget between direct marketing and traditional marketing activities.
PTAG - aktiv RFID-tag med GPS
Free2Move AB is developing products for the market within wireless communicationand identification, among those active RFID-tags. The company had an idea aboutproviding one of their active RFID tags with a GPS receiver and transmit positions viaan existing RFID protocol. Desire from the company was also the possibility to logpositions and measure temperature. The finished prototype should also be able to beactivated by movement. The company had proposal about components that were to beused in the project.
Klinisk termografi som diagnostiskt hjälpmedel vid rörelsestörning hos häst :
Thermography is the assesment of the surface temperature of the horses body and it falls into the categori of physiological imaging. Thermography allows us to portray inflammation and changes in sympathetic tone in a graphical manner.
The purpose of this study was to review thermography in equine medicine and to evaluate thermography as an aid in the diagnosis of lamness in horses.
Thermography has been helpful to identyfy sprains, stress fractures, shin splints and soft tissue, tendon, ligamentous and nerv injuries and to monitor healing processes during rehabilitation. Routine thermography may reveal inflammatory responses prior to clinical signs.
In present study thermograpy gave especially valuabel information in two cases. In one horse reduced blood flow in a. saphena due to a thrombosis were visualised and in the other horse bilateral thoracolumbal radiculopati was diagnosed.
Utbrändhet - En litteraturstudie om utbrändhetsfaktorer bland sjuksköterskor
The aim of this literature study was to find out how nurses experience their work-situation and work environment and which the risk factors where. We also wanted to examine what kind of influence those risk factors had on nurses work satisfaction. This was done by the following question: What are the risk factors that can lead to burnout in work environment of nurses? The method was by critical examination of ten scientifically articles. The articles were critically studied by the criterions of Polit, Beck & Hungler.