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524 Uppsatser om Thinning stands - Sida 30 av 35
Tillämpning av en markprofilmodell för hydrologiska beräkningar i avrinningsområdesskala
There is a great need to reduce nutrient leaching from arable land into lakes and oceans. By using several different types of models it has previously been possible to describe nutrient losses in a catchment area with a minimum unit of sub-catchment level. At present, it is instead desirable to model a smaller catchment with an opportunity to re-connect the results to the corresponding fields in the catchment. Such models already exist but they are not fully able to properly describe Swedish conditions and land characteristics in our region.With the approach of creating such a model, SLU has developed a project with this work as its first stage. The model is expected to be created under the working name SWE-model which stands for Soil Water Environment and is in this first stage supposed to apply the SOIL model in catchment scale. During the procedure to describe the first step in the process of developing such a model adapted to Swedish conditions and which works in the catchment scale with an area of about 10-30 km2, focus has been set on calculating the transport of water flow from different hydrological response units. Regardless of the processes occurring in the soil after the water has been added, it is assumed that all the water which flows from each simulated unit is drained.In the first step the hydrologic response units were identified based on land use and soil type in the study area. With the help of a script with functions that retrieve and transform data, certain units were chosen for simulation. The script was also created in this project. Finally, the model results were aggregated and summarized for each unique unit, for each sub-catchment, and also for the whole catchment.From the results it is possible to see similarities in the flow dynamics between modeled and measured data. The efficiency coefficient has been calculated to correspond to the mean of the measured values for the whole simulation period. With an automated calibration process the model should be able to perform better. The volume error gives an indication of overestimation from the model..
AHA in northern Sweden ? a case study : conservation values of deciduous trees based on saproxylic insects
AHA is a Swedish abbreviation of "reveal threatened park and avenue trees" and is a method to assess the conservation value of individual trees, mainly in the park environments but also in natural stands. This method has previously only been practiced in southern Sweden (Sörensson 2008). To see if this method could provide satisfactory results in northern Sweden, I have studied it in areas around the Umeå River. This was done by studying the relationship between trees with different classifications of conservation value (as classed by the AHA method) and their content of species (species richness and abundance). Insects were collected using trunk window traps in a period of 13 weeks during the summer of 2014.
Data och metodik för utbytesberäkning - en studie på Medelpads Skogsförvaltning
To manage the industry?s need of wood assortments in a optimal and cost effective way the forest companies need to have knowledge of the actual standing volume and the yield of the planned clear cuts. The mean volume of the trunk is also important since it is important for the contractors prices. Today the total volume are estimated either with Näslund (1940) or Brandels (1990) functions of volumes, and the yield is estimated with Rune Ollas (1980) function for trunks and stands. The purpose of this study has been to answer the following questions: How good is the yield forecast with data collected with currently used methods? How well can the yield forecasts became with data collected according to the instructions? How well can the yield forecast be with data collected according to the instruction and calculated with the program Aptan for theoretical bucking? The study has been initiated and financed by SCA Skog AB.The material consisted of a number of randomly selected objects ready for clear cut.
Rörsvetsning i konceptet Factory-in-a-Box
This Master of Science thesis was a part of Pharmadule Emtungas project to construct a mobile automated cell for welding of carbon steel pipe (Heating, Ventilation and Sanitation). Pharmadule Emtunga is using a modular building concept for building pharmaceutical factories. The modules contain these pipes. The goal of the thesis was to present concepts for technical solutions regarding welding methods and fixtures for the cell. Conceptual models for the cell were made with aid of CAD software.
Kommuninvånarnas syn på Sala kommuns skogar och skogsbruk
The municipal forests of Sala cover an area of 6 000 hectares, starting in the vicinity of the city and reaching north. At the same time as residents make abundant use of the areas closest to the community for outdoor activities and recreational purposes, the forest is of great economic value and also worth protecting for environmental reasons. These conditions make forestry in periurban woods more complex than conventional forestry, why a good understanding of the needs and demands on the forest and silviculture program is required. The purpose of this study is to depict the usage of the forests owned by the municipality of Sala, to set forth the common view of the silviculture program implemented by the municipality and to chart the expectations the community has on the forests and forestry of the future in the municipality of Sala.
The survey part of this paper consists of the interviews of thirteen individuals representing nine interest groups. As expected the views of these individuals varied widely but some results were expressed by more or less all of them.
Utvecklingen av ett nytt såghandtag
SNA Europe?s handsaw concept is called ?Bahco Handsaw System? and is constituted by a saw handle with the possibility to switch between different saw blades. The sales of ?Bahco Handsaw System? products have not achieved the desired results probably due to the high price. Developing a more cost efficient handle, enabling a lower consumer price of the product, is assumed to increase the sales volume.
Att planera för social hållbarhet i ekobyar :
This essay gives the reader an overview of the different problems and issues a landscape architect might meet, in the process of planning and realizing an eco-village. Its aim is to stimulate new ideas, based on the traditional, present and future working field of landscape architects. The essay does not claim to cover all imaginable aspects of social sustainability within an eco- village, but refers to the presented sources for further in-depth reading. Although the original focus has been on physical planning, the interviewees? words have been of big importance, and to a certain extent changed the constitution of this essay.
Att redesigna en dagstidning : En studie om Folkbladets layout
The newspaper industry changes with the society. New trends and developments affect how layout and design are perceived. Therefore it is important for the survival of a newspaper to catch up with trends and retain contemporaneity. This demands that a daily paper frequently updates its appearance and sometimes even redesign the whole newspaper. Folkbladet, a newspaper in Norrköping, is currently in need of a new layout. The employees often deviate from the graphic guidelines that exist at the company today, due to that it doesn?t feel contemporary, but also because they don?t appreciate the appearance as it is today. This thesis is based on a study of the layout of Folkbladet and analyse: which tools can be used to create a distinct identity regarding layout, which tools you can use to create a clear structure and readability in a newspaper, and how Folkbladet can make use of these tools. To find out about the company?s situation today and their identity, interviews have been made with employees.
Energikartläggning av Försäkringskassans lokaler : rekommendationer för ett fortsatt energieffektiviseringsarbete
With new energy directives in place, the Swedish Social Service (SSS) stands beforethe challenge how to reduce the energy demand in its locales. It is a complex matter,as the locales are rented from various property owners and it becomes a question ofhow to reduce the operational electricity and influence the property owners to workmore with energy efficiency. This thesis takes a balanced research approach in threeparts. Firstly a qualitative part in form of interviews with personnel at the SSS and itsproperty owners, secondly a quantitative part of descriptive nature in form of energystatistics and thirdly a literature review of Energy Management (EM) Supply ChainManagement(SCM), Green Supply Chain Management(GSCM) and EnviromentalPerformance Indicators (EPI). This in order to be able to give normativerecommendations of how the SSS should act to reduce its energy consumption in itslocales and provide new insights on how EM, SCM, GSCM and EPI can be applied ineffect.
Inkludering av elever med ADHD : En fallstudie från åk 5
Today there are many students with behavioral and developmental disorders in schools. One of these disorders is ADHD. The medical designation ADHD stands for Attention Deficit Hyperactivity Disorder. I have chosen to research how two students with ADHD can be included in a fifth grade classroom.This research paper addresses the issues surrounding the student?s day-to-day life with a focus on the classroom.
Fyra barns erfarenheter via interaktion - ett nedslag i tiden
The purpose of my study is to examine how children through interaction are recognized and understood by other children and teachers at the preschool for one hour in the afternoon. This study gives voice to what young children in preschool do after snack. The overall purpose of this study is to find out what young children's experiences will be in preschool through interaction. The purpose of my research is to gain knowledge about how the time and opportunity for interaction exists between children 1;7-2;5 years, and educators as well as other children, and how this interaction appears during afternoon activities in the preschool.My research questions are:1) What experiences do children get in terms of their development of identity for one hour in the afternoon? 2) How does the interaction that the youngest children are involved in during the afternoon appear? And how long time does every occasion last? The study is based on the interactionist perspective and systems theory.
Solenergi och värmelagring i kvarteret Lagern
Humanity stands before a huge challenge to lower its emissions of carbon dioxide and its use of energy at the same time as the global population is rising and the developing countries are being industrialized. A lot of newly built buildings are due to this challenge, designed to be more energy efficient but also use renewable energy resources instead of pollutant fossil fuels .Solar energy is one of the purest forms of energy that exists in abundant amounts, which is why it is most likely that it could come to play a major part in the future energy market. The main purpose of this report is to investigate the possibility to implement a sustainable energy system with solar thermal heat and heat storage as main sources of energy in the neighborhood ?kvarteret Lagern?, which is the area where the old football stadium ?Rasunda Stadion? was located. New developments within different heat storage techniques have opened up new approaches to enable buildings an all year round heat supply from solar energy. This report will focus on heat storage in boreholes. At the present here is only a preliminary plan of how the neighborhood is supposed to be designed.
Läppar röda som blod : En strukturell analys av kristna symboler i Walt Disneys och Rupert Sanders versioner av Snövit
Snow White is one of the most popular fairytales to our time. There has been much research on the subject. `Lips red as blood- a structural analysis of Christian symbols´ in Walt Disneys and Rupert Sanders versions of Snow White` by Emma Svanström aims not to give a final answer to how Snow White should be interpreted. But rather the objective is to examine two versions in the search for any possible Christian influences and changes in such over time. The two versions are Walt Disney?s Snow white and the seven dwarfs and Rupert Sanders Snow White and the huntsman.
137Cesium i myrsamhällen i Gävleborgs län 24 årefter Tjernobylolyckan
24 years have passed since the Chernobyl accident when radionuclides were spread over largeareas of Europe, including the Scandinavian countries. Today, measurable activities of 137Csare still observed in many Swedish ecosystems.Ants (belonging to the order Hymenoptera) are social insects which collect organic materialfrom a large area around their nests. This study focuses on the 137Cs activity in ant nests andthe cesium accumulation in these nests. The aims were (1) to estimate the 137Cs fall-out in1986, (2) estimate the radiation exposure of ants and (3) find how 137Cs is distributed in an anthill. Seven ant hills (occupied by the species Formica polyctena) were studied near the villageof Hille, situated north of the city of Gävle in central Sweden.
"Zlatanfenomenet" : En interkulturell studie om individualisters socialisering inom lagidrotten och skolans idrottsämne.
Our starting point has been to use the football player Zlatan Ibrahimovic as a model person for individualism that seams to break the ordinary socialization pattern in Sweden. The purpose of this study is to examine how the team leaders handle the socialization of more individualistic focused individuals/young persons into groups, since the Swedish School Curriculum is designed to meet each individual on his or hers former experiences. Is the socialization of individuals within team sports affected by their cultural background? And, in that case, should those facts have consequences for the sport subject at school? Those are the questions we want to explore. Besides a survey of documents, we have been seeking answers to our questions through interviews with the team leaders Roland Nilsson and Peter Bergander, the pedagogues/teachers Karin Jutterström and Håkan Jensgård and the professional football player Abgar Barson.Our study shows that the leaders and teachers of today have begun to change their view about individualists.