Uppsatser om carbon

358 uppsatser · sida 5 av 24

Inomhusklimat i skolor- En jämförelse mellan upplevt och uppmätt inomhusklimat

Examensarbete, grundnivå · Chalmers tekniska högskola

… environment. A survey was made at the schools as well as measurements of carbon dioxide, dampness, thermal climate and, as an indicator for the furniture’s capability to collect dust, shelf factor and fleece factor. The results from each school were compared. Results show that …

Påverkas miljökuznetskurvan olika av ekonomisk frihet än av demokrati

Kandidatuppsats

… to the theory of environmental Kuznets curve there is a relationship between carbon emissions and GDP. The relationship has an inverted U-shape. Carbon emissions rise initially and then decreases once a certain level of GDP is obtained. This essay interprets earlier studies in …

Ökad kollagring i boreal skog

Kan blädningsbrukad skog lagra mer kol än trakthyggesbrukad skog?

Kandidatuppsats · Umeå universitet

… test the hypotheses that a forest managed by selective cutting can store more carbon than a forest managed by clearcutting. The study was carried out as a meta-analysis. The data that was found was analyzed by performing t-tests on the proportional effect that the two …

Annons

Kol-14 datering

En litteraturstudie över hur kol-14 isotopen används för datering, samt utveckling och tillämpning av djup-åldersmodeller inom naturgeografin.

Kandidatuppsats · Umeå universitet

This literature study concerned the use and function of the radioactive isotope carbon-14, as a dating method of organic material, within the scientific field of physical geography. In this report it is presented the need of atmospheric calibration curves and the development of …

Soil carbon in small-holder plantain farms, Uganda

a comparison between agroforestry and non-agroforestry

Kandidatuppsats · SLU

… are studies indicating that the use of agroforestry increases soil organic carbon (SOC) compared to systems without trees. Soils which are high in carbon have many advantages, for example better water holding capacity, which can reduce stress on crops during drought. The aim of …

Do 25 years old skid tracks restrict growth and survival?

a study on growth conditions for the planted regeneration in a rainforest rehabilitation project

Masteruppsats · SLU

… the world as a whole. They influence oxygen and water circulation as well as carbon sequestration which in turn affect global radiation and global warming. The forest also have great value and in Malaysia as in many other tropical countries large volumes are harvested which …

Miljödifferentierad fastighetsskatt

Masteruppsats · KTH

… decide whether wood ashes that been used for biogas upgrading with accelerated carbonation also can be used as a nutrient compensation in the woods according to recommendations from the Swedish Forest Agency (Skogsstyrelsen). The ashes that were used in this study came from …

Alternativa finansieringsmöjligheter av företagsfastigheter

Masteruppsats · KTH

… decide whether wood ashes that been used for biogas upgrading with accelerated carbonation also can be used as a nutrient compensation in the woods according to recommendations from the Swedish Forest Agency (Skogsstyrelsen). The ashes that were used in this study came from …

Effekt av karbonatisering med biogas på aska från trädbränslen

Examensarbete, avancerad nivå · Umeå universitet

… decide whether wood ashes that been used for biogas upgrading with accelerated carbonation also can be used as a nutrient compensation in the woods according to recommendations from the Swedish Forest Agency (Skogsstyrelsen). The ashes that were used in this study came from …

Handel med utsläppsrätter - hur företagsstrategier påverkas :

Examensarbete · SLU

… The European Union has decided to introduce a system for tradable permits for carbon dioxide from year 2005 to reduce emissions and get experience in emission trade. The included companies are companies that provide district heating, oil refinery, factories that produce iron …

Klimat i djurtransportbil med slaktgrisar sommartid

jämförelse mellan naturlig och mekanisk ventilation

Examensarbete · SLU

… truck was fitted with climate sensors that registered temperature, humidity, carbon dioxide levels and direct sunlight every 30 seconds between source farm and slaughterhouse. Ten measurements were made in total, five with mechanical ventilation, five with only natural …

Studie och riskanalys av sulfidleror i Uppsala stad

Examensarbete, avancerad nivå · Uppsala universitet

… examine the long-term acidification potential of clays with different calcium carbonate content. The tests were performed with continuous air supply and during the experiment leachate water was analysed with respect to pH, alkalinity, dissolved sulphate and mobilised metals. The …