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4307 Uppsatser om Intermittent Positive-Pressure Ventilation - Sida 11 av 288

Jämförelse av nuvärden vid manuell och mekaniserad plantering i södra och norra Sverige

Mekaniserad skogsplantering introducerades i Sverige på 1960-talet, och idag används främst Brackes planteringsaggregat av bland annat av Södra och Norra skogsägarna. Plantering med Brackes planteringsaggregat ger vissa fördelar jämfört med manuell plantering, såsom ökad överlevnad gentemot högläggning och ökad överlevnad och tillväxtökning gentemot harvning. Den här studien jämförde följande tre planteringssystem; manuell plantering med harvning; manuell plantering med intermittent högläggning; samt mekaniserad plantering. Data för tre olika föryngringssystem insamlades och jämfördes med hjälp av nuvärdesanalys för att se eventuella fördelar och nackdelar ur ett skogsekonomiskt perspektiv. Dessa system antogs ha olika systemkostnader och antal planterade plantor med olika överlevnadsgrader och tillväxttakter i ungskogsfasen vilket möjliggjorde en nuvärdesanalys på data från ett skötselprogram simulerat i Heureka PlanWise.

Energieffektivisering i flerbostadshus för studentboende

Uppsalahem AB is a municipally owned real estate concern that owns and administrates housing for nearly 30 000 people. The company puts a lot of effort into reducing the energy use of their housing stock. This project is a master?s thesis in the energy systems programme at Uppsala University, carried out in collaboration with Uppsalahem. The aim of this thesis is to provide energy saving measures for fourteen student housing buildings in Uppsala, Sweden.

LCC-analys av FTX-system : En jämförelse av centralt- och lägenhetsplacerat

This report is the result of a thesis conducted at the consulting firm Bjerking AB andis the final part of the Bachelor Programme in Construction Engineering at Universityof Uppsala. The work aims to investigate the costs and how the choice of ventilationsystem affects building projects during a long-term period. This report covers costssuch as investment, maintenance and energy but also how they affect residents andbuilders. Building regulations for energy consumption are expected to be tougher;therefore a comparison of two different heat recovery ventilation systems(HRV-system) was made. One system is based on a centrally placed unit that coversthe whole buildings ventilation through vertical shafts.

Betydelsen av den fysiska arbetsmiljön i förhållandet till lärandet. : En studie om elevers uppfattning och koppling mellan sitt lärande och den fysiska arbetsmiljön på de yrkesförberedande programmen i årskurs två.

Syftet med denna studie är att undersöka om det finns någon betydelse av den fysiska arbetsmiljön i förhållandet till lärandet. Undersökningen är gjord med hjälp av litteraturstudier och enkäter som besvarats av elever på fem yrkesförberedande program i årskurs två.  I resultatet framkom elevernas syn på skolans och den arbetsplatsförlagda utbildningens fysiska lärandemiljö. Exempel på förhållanden som eleverna uppmärksammade var ventilation, ljus, måltidsmiljön och läraren. Enligt litteraturstudierna var det ett flertal faktorer i den fysiska arbetsmiljön som påverkar lärandet såsom ljud, ljus, ventilation och underhållsskicket av arbetsmiljön.Nyckelord: Lärande, fysisk arbetsmiljö, ergonomi, skolans innemiljö, måltidsmiljö..

Training techniques used in training horses (Equus caballus) : with a focus on positive reinforcement

Instrumental conditioning, the use of reinforcement and punishment, is used when training horses and these procedures may have different consequences regarding animal welfare. The aim of this study was to investigate what kind of reinforcers that are used in training horses and when these reinforcers are used. This study has its focus on positive reinforcement and its advantages and disadvantages. Interviews of five A-level and B -level equestrian coaches about their training methods were conducted to complement the literature search and give a greater understanding to why certain methods are used or not in training horses. The results show that negative reinforcement seems to be the foundation of training horses whereas positive reinforcement is used but not to the same extent.

En energistudie över Fengerfors bruk : Kartläggning och förslag till effektiviseringsåtgärder hos byggnader av industrikaraktär

I slutet av 1900-talet började man inse konsekvenserna av att förlita sig på icke förnyelsebara energikällor för uppvärmning. Priserna steg i höjden och man valde ofta att byta ut sin oljepanna mot el vilket för tillfället var en lönsam lösning. I och med prisstegringen som skett det senaste decenniet har betydelsen av energieffektivt byggande framstått som allt mer tydlig. Detta innebär att många äldre byggnader ofta kan ha mycket dåliga värmeisolerade egenskaper eftersom både energipriser och byggnormer var lågt ställda vid tiden för uppförning.Uppdragsgivarna till arbetet är en ideell ekonomisk förening vid namn Not Quite med sin bas i Fengerfors bruk, Åmål. De har framfört att de har problem med för höga uppvärmningskostnader och svårigheter med att hålla önskad inneluftstemperatur i deras lokaler.

Prehospital vätskebehandling vid stort trauma ur en sjuksköterskas perspektiv : En systematisk litteraturstudie

The aim of this study was to determine which type of fluid to use in trauma care to improve patient survival. The method used was a systematic review, where a total of 18 studies were reviewed and 13 included in the results. The inclusion criteria used in this study were Randomized controlled trial, or studies relevant for the purpose, written in English and published during the last ten years. The studies were identified in the PubMed data base. The results showed that in trauma with hypovolaemia, colloid infusion has a better effect than infusion of crystalloid fluid on blood pressure and colloid infusion reduced the body's cascade systems in a beneficial way. Colloid infusion administered to head injury patients lowered their intracranial pressure more than crystalloid infusion.

Analys av sorptiv kylning i industri- och kontorsbyggnader

Energy efficiency is important both to reduce costs and to reduce greenhouse gas emissions in the atmosphere. Reducing costs will also help maintain business competitiveness.Scania in Södertälje is a company where the optimization of energy use is an ongoing and continual process. One area with potential to make energy and cost savings is the effectiveness of the ventilation systems in offices and industrial premises at Scania. During the summer months an increased demand for cooling occurs, leading to increased ventilation and a peak in district cooling system usage. Sorptive cooling is a technology where the supplied air is cooled by applying external heat.

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.

Nordisk compliance - En studie av de nordiska EU-medlemmarnas implementeringsnivå

The following thesis is examining compliance with EU-law from a member state perspective. The variation in the compliance level between the member states from 1995 to 2005 is analyzed to prove the fact that the Nordic member countries during the measured time period experienced a low number of infringements. The infringements that did occur were resolved faster and more efficient in the Nordic countries then in the other member states. The theory used to explain the Nordic compliance rate is divided between external and internal pressure in a pull and push model. The external pressure is illustrated with argumentative persuasion from the EU-commission to the individual member states; how the state responds to the persuasion in order to act compliant.

Förebyggande djuromvårdnad mot post-anestetisk myopati hos häst

Post-anaesthetic myopathy (PAM) is a serious occasional complication of general anaesthesia in horses. It causes not only pain and suffering to the horse, but also suffering (trauma) to the owner with increased veterinary costs. In the worst case PAM can be fatal. The anaesthetic nurse must know which parameters have to be taken into consideration in the prevention of PAM, to be able to prevent it, and use that knowledge for the animals safety. The aim of this literature review was to investigate and make a presentation of the factors and measurements associated with PAM, with focus on how to monitor these measurements to prevent it from happening, and the advice a Veterinary nurse can give to the horse owner regarding this condition. According to literature there a few factors that greatly increase the risk of PAM, these include- hypotension, periods less than 60 mmHg significantly increases the risk.

Miljömål 17: Hållbar konsumtion : Ett försök att integrera den svenska konsumtionens globala miljöpåverkan med miljömålssystemet

Environmental objective 17: Sustainable consumption - An attempt to integrate the global impact of the Swedish consumption with the environmental objectives system The aim of this report was to integrate the global impact of the Swedish consumption withthe environmental objectives system through presenting a suggestion for a seventeenth environmental objective ? Sustainable consumption. How the Swedish consumption pressures the global environment and methods to measure the affects was investigated. The pressure was divided into five main fields: climate, air, water, land and chemicals. The impacton humans and the biodiversity was also discussed, as well as differences between how men and women affect the environment and get affected when the environment changes.

Att veta Gudarnas hemlighet : En sårbarhetsanalys av omständigheterna kring stormen Gudrun med pressure and release modellen

The concept of vulnerability is the capacity or the sensitivity to become damaged. Vulnerability are characterized by one or more of the following terms; a system´s sensitivity to exposure to shock, stress or interference, the state of the system in relations to a threshold of damages, and the system´s ability to adapt to the changing circumstances. Vulnerability in this study is referring to the sensitivity of the circumstances that lead to sustainable livelihood that can´t be maintain and that there is an inability to cope with and manage stress. The choice of making a study in this area is based on that action needs to be taken to moderate the vulnerable aspects of society, in this respect in relations to storms. Analyzes of the social vulnerability to climate change or natural events is needed for effective actions.

Vibrationsträning vid knäledsartros

In cooperation with Hälsoteamet Halmstad a pilot study was made to see if whole body vibration exercise has any effect on muscle strength, movement and experience of pain in people with knee osteoarthritis. Today whole body vibration exercise is a revolutionary exercise method that needs more studies to show the positive and negative effects. Osteoarthritis is a degenerative disease where more cartilage is destroyed than replaced. The most common symptoms are pain, stiffness, restricted movement, muscularly atrophy, tenderness and instability. The cartilage needs pressure to rebuild, it is therefore important that the patient exercise.

Klövviltets besöksfrekvens och bete i sydsvenska poppelplanteringar

Energy is an essential part of the society and for a sustainable future we need to use the energy resources in a sustainable way. The forest is Sweden?s most important resource for renewable energy and a higher production combined with shorter rotation periods (time from planting to clear cutting) can increase the access to energy. The tree genus poplar (Populus spp.) is interesting as energy resource as it has both high production and short rotation period. But browsing ungulates are a major threat to the establishment of poplar plants and therefore the poplar plantations need to be fenced in today. To use fences is expensive and time consuming; this makes it interesting to find more cost-effective solutions where there is no need to fence. The aim with this study was to look at the ungulates? occupation rate and browsing pressure in poplar plantations without fence.

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