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1177 Uppsatser om Forest fuel - Sida 61 av 79
Förutsättningar för naturvetenskap i förskolan : En intervjundersökning om förutsättningar för naturvetenskap i förskolan
The purpose of this study is to examine the conditions for pre-school teachers to achieve those goals that are constituted for science education in the Swedish curriculum for the pre-school. The study questions of formulations are: which importance have the conditions for the work with science education in pre-school, which importance have pre-school teachers engagement and knowledge for the work with science education in pre-school and does the pre-school pre-school teachers think that they have enough conditions to achieve those goals that are constituted for science education in the Swedish curriculum for the pre-school. The results are based on an interview survey with ten pre-school teachers from three pre-schools that are connected in a unit. The interviews were recorded and transcribed. The results from the study points out that the pre-school teachers engagement are most important for the work with science education in pre-school to flourish.
Planering : fallstudie av en mjölkgård
The purpose of this paper is to give examples of different ways of economic planning and
calculation within agriculcture. My aim is to use a couple of them as an explanation of a case
from reality. My choice went to budgetsimulation and balanced scorecard since those are best
suited in this specific case.
In the information retrieval I present different instruments of economic planning like theory of
cost, budget and productcalculation. The budgetsimulation describes how to use the different
methods in a long term economic planning. The balanced scorecard is also a model of longand
short-term planning but besides the economy planning it?s also a reminder of your
personal goals.
In the model I have used a dairyfarm as a case.
Varför är Bivarödsånsvatten så brunt?
The river Bivaröd is one of the river Helgeån tributaries which has the highest and the fastest increase in water colour. The reason behind this increase is unclear but several factors have been suggested to affect this pattern. In this work, I studied the role of land use, iron and precipitation for water colour increase in river Bivaröd for the period 1976 -2011. Data from a field study along with data from SRK for river Helgeån were used for the analyses. The results showed that both water colour and iron concentration increase and that there is a strong correlation between these two variables.
Optimering av sotningsfrekvens i biobränsleeldad CFB-panna : panna 5, Mälarenergi AB, Västerås
During the past 30 years the fuels for energy production in heating and power plants
have changed. Fossil fuels have decreased in usage whereas bio fuels in Sweden
have increased with 60% since the 1970's. Different fuels affects combustion and the
release of various substances and particles into the flue gas. This is caused by the
diverse components and chemical structures of fossil fuels and bio fuels. When the
flue gas leave the combustion chamber and enters the path to the chimney particles
in the gas are being transported out of the combustion chamber.
Betydelsen av utfodring under sintiden, sintidens längd och kalvningsintervallet med avseende på kons hälsa under kommande laktation
This essay describes and compares the extensive reindeer management to the more intensive, but grazing based, sheep management system in Sweden. Differences and similarities between the two production systems will be investigated by elucidating the economy, land use and possibilities to influence production and economy through breeding, feeding and product development. The reindeer management area covers the northern part of Sweden whilst the sheep management is dispersed over the country. Both reindeer and sheep are ruminants and have relatively high demands on the quality and digestibility of the feed however reindeers graze on mountain-and forest lands whilst sheep often graze inaccessible areas or cultivated grasslands. Selection intensity is generally lower in the reindeer management compared to the intensity in sheep breeding.
Några svenska virkesaktörers system för skoglig planering
The purpose of this degree project is to give an overview of the planning system of four Swedish forest companies. The involved companies are ATA TIMBER, SYDVED, BERGS SKOG and VIDA SKOG. The study is based on information from a literature study and by interviews with personals from the four companies.
Each company is described to get a better insight of the companies work and what potential they have. The description of the planning process comes after that. The companies are described separate from each other and will be compared later in this essay.
Lövskogsmålen i FSC-certifierat skogsbruk : tolkning, uppföljning och skötseldirektiv
Den mest eftertraktade råvaran i svenska skogar är barrvirke och detta har sedan länge varit vägledande för skogsbrukets planering och skötsel. Brandskydd, ökat betestryck och skötsel för barrträd har missgynnat lövträden. Eftersom lövskogar i den boreala zonen tillhör ett av de artrikaste ekosystem är kontinuerlig förekomst av lövträd och lövdominerade bestånd viktigt för den biologiska mångfalden. Den standard skogsägare certifierade enligt FSC (Forest Stewardship Council) har att följa innehåller två lövindikatorer, 6.3.8. och 6.3.9..
C16 - utveckling och metod
Intresset för bioenergi bara ökar. 2008 var den totala energianvändningen i Sverige 497 terawatt timmar (TWh), varav 125 TWh (25 %) kom från biobränslen (Elofson, 2009). Under de sista åren har utbudet av och intresset för biobränslen ökat och också möjligheterna att tillvarata och använda dem.
Arbetet har som syfte att: 1) Presentera resultaten i Sverige från användare av C16, 2) Presentera resultaten för olika användningsområden, 3) Beskriva marknaderna i England, 4) Presentera resultaten gällande maskinkostnader och tidsstudie. Detta visar en bild av C16 och de kunskaper och erfarenheter som finns av aggregatet.
Maskintillverkaren Bracke Forest som etablerades 1922 och har flera produkter anpassade för aktiviteter i skogen. Företaget investerar mycket pengar på forskning och produktutveckling.
Skogsvårds och bioenergiaggregatet, C16, används idag till många olika arbetsuppgifter och i många olika länder.
Pressning och hantering av halm som energiråvara
I?ve tried to find the most effective and cost effective way to harvest straw for energy recovery.You can choose between round bales and big square bales. Square bales are the cheapest way to produce straw for fuel recovery because you can optimize the length of the bales so they fit the transportation equipment.In the Malmö area the average days of harvesting hay is 55. The effectively of transportation depends mostly of the speed, the distance and density of the bales. To increase the capacity of bale transportation larger loads and higher density of the bales is necessary.
Hunter demography, trends and correlates of hunting participation in Sweden
The concerning issue of declining number of hunters in North America is also apparent in Europe and Sweden. When the bulk of research found on human dimensions and hunting participation has almost exclusively been done in the United States, this report seeks to add to the needed knowledge on a national level focusing on the causes of hunter declines related to social factors within Sweden. Using hunter data reaching from commune, county to National level, this report describes the correlation between a number of variables and the hunting participation in Sweden.The typical Swedish hunter lives in an area with low population density, the person usually has higher education, the living situation is stable with no recent moving and there is relatively good access to forest land. Persons with weaker connection to the Swedish culture such as foreign citizens, people with foreign background and people born outside ?the Nordic countries? are less likely to start hunt or participate in hunting.A strong relationship was found between the favorite game, moose (Alces alces), and the amount of hunters participating in the hunting.
Frysa livsmedelsrester eller kassera dem för biogasproduktion : En studie, ur livscykelperspektiv, av energianvändning och växthusgasutsläpp
Food is widely consumed and in 2011 an average American devoured approximately one ton of food. The production of these goods requires large amounts of energy and contributes to 22-31 % of all greenhouse gas emissions occurring in Europe. More than one third of the produced food is discarded instead of consumed, and food waste make up about 30 % of the waste generated by households. 60 % of this food waste could be avoided if the eatables were handled in a better way.Avoidable food waste arises partly because residues from food are not taken care of, and because the food is not stored in a way that optimise its durability. Residues arises part- ly because of the contradictory and complex demands of everyday life and are, because of our busy lifestyle, difficult to avoid.
Gräv där du står och ända ner till Kina : En studie av två grundskolors omvärldsrelationer med fokus på hållbar utveckling
The aim of the study was to analyse relations between the school and the surrounding world and how these relations affects the schools? work for sustainable development. This was mainly an interview study but teachers? self-valuations have also been used. Totally six teachers at two primary schools has been interwied.
Project EQS - Elektronisk växelreglering för motorcykel
Husaberg Scandinavia AB is a company producing and developing a range of motorcycles for both on- and off-road use. Husaberg provided the project group with a task of developing an entirely new way of operating the sequential transmission that can be found in today?s motorcycles. The target was to bring the product from idea to a functional prototype ready for further tests. Operation of the motorcycles transmission is today made by a foot pedal placed on the left hand side of the bike.
Simulation of rattan harvests in Indonesia : different harvesting pressures and the resulting patterns
The objectives of this research were to determine whether the natural rattan resources in Sulawesi, Indonesia can cope with the strongly increased harvesting pressure that has occurred over the last centuries. I was furthermore looking for patterns in the rattan population dynamics that might give a hint on how the harvesting system could be improved to ensure a maximum sustainable yield. To
answer these questions, I developed an individual-based model to analyse the dynamics of rattan growth in connection with rattan harvests by locals to identify sustainable levels of rattan harvests around villages in Sulawesi, Indonesia. Scenarios with different harvesting intensities were run to compare the change in harvest amount. For a given harvesting pressure, scenarios with a high number of harvesters and a low harvesting frequency had the same effect as scenarios with high harvesting frequencies and a low number of harvesters.
Ståndortsanpassning och produktionspotential för björk i Gävleborgs län
Large amounts of birch-timber are imported to Sweden, from particularly the Baltic States, since the domestic production can?t support the pulp industry. The goal of this study was to show the potential of birch and the area?s most suitable for birch production. The study was limited to Gävleborg County.
Using site characteristics, site index (SI) for birch was estimated on all National Forest Inventory plots in Gävleborg County.