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3106 Uppsatser om Control mechanisms - Sida 66 av 208
Effekt av sönderdelningsgrad och planteringsdjup på uppkomsten från rhizom av Tussilago farfara :
Tussilago farfara, coltsfoot, is a troublesome perennial weed with deep lying rhizome, which can vegetatively generate new plants. The mechanical control of coltsfoot that is used today, "starvation", which consists of several cultivations of the soil, which fragmentises the rhizome. This results in production of new shoots, which leads to depletion of nutrient resources; as long the new plant is not allowed to establish. However, very little research has been done to investigate how the starving technique affects the regenerative ability of coltsfoot. The purpose of this experiment with coltsfoot was to investigate how fragmentation and burial depths affect the time of emergence, number of emerged shoots per rhizome fragment, number of shoots per node, and if the germination ability within nodes changes during the experiment.
Internationell jordbruksmark till salu - Nationell suveränitet, fattigdomsbekämpning & visionen om en hållbar utveckling
During 2008 we experienced an expansion of large scale investments in foreign farmland. This increasing trend has become a political hot-spot, but there is not much research available within the field. Due to a lack of research it remains a vital task to outline the potential effects of this trend. Drawing on existing ideas from some of the main actors within the field, The Food and Agriculture Organization of the United Nations (FAO), The World Bank, International Food Policy Research Institute (IFPRI) and the latest G8 summit on agriculture, four main purposes are set out for this paper. First, to outline some of the underlying mechanisms behind the trend is considered crucial for the understanding of the nature of these investments.
Establishing in China?s ?good-enough? market - - A benchmarking study on Scandinavian engineering industries? further establishment in China
Title: Establishing in China?s ?good-enough? market - A benchmarking study on Scandinavian engineering industries? further establishment in China. Problem discussion: The Chinese market is gaining importance for Scandinavian engineering industries and is by many considered a crucial market to be successful in. These companies have a tradition of producing premium products for premium customers. However, in China many are currently experiencing the threat from local competitors producing products of somewhat less quality aimed at the vast Chinese middle market - the good-enough market.
Inställning av automatikermed spänningsreglerande verkani det sydsvenska 400-130 kV nätet
The voltage level in the power grid varies due to variations in load and production. Normally these variations are manageable, but they may be excessively large during a disturbance. If the voltage is too high it may damage the equipment in the grid and too low voltages may cause problems like voltage instability. The magnitude of the voltage variation depends on the short circuit power capacity of the point of interest.This problem may become lore prominent due to automatic voltage regulation that acts on shunt reactors and shunt capacitors. When the shunt reactor is connected or disconnected to the grid it may cause such large changes in the voltage that the shunt reactor starts hunting.
Effekt av biotintillförsel på klövhälsan hos mjölkkor i lösdrift : ett kontrollerat fältförsök på tre gårdar
The Effects of dietary biotin supplementation on hoof health in Swedish dairy cows - a controlled cohort field study.
The aim of the present degree project was to investigate the effects of biotin supplementation on hoof health in dairy cows. The experiment was performed as a controlled cohort study in three commercial farms in western Sweden from January 2002 to October 2002. The cows were all housed in cubicle systems with transponder concentrate feeding systems. Within each farm the cows were allocated to either biotin or control treatment. The biotin groups received 20 mg of biotin per cow and day, starting 14 days before expected calving.
Självet under adolescensen
Självets utveckling under adolescensen är något som vi alla implicit och explicit upplevt. Utvecklingen av självtilliten (self-efficacy), självkänsla (self-esteem), locus of control, learning (inlärning) och mastery undersöktes under åren på högstadiet. Eventuella könsskillnader var av intresse i studien. Deltagarna bestod av 252 elever från årskurs sju, åtta och nio på en högstadieskola i södra Sverige. Tvåvägs ANOVA användes för att mäta effekter av kön och ålder på självbilden under adolescensen.
"Önskar man hade två käftar och tre telefoner" : COCOM och kontroll inom flygledning
Denna magisteruppsats redogör för en anpassning av COCOM (Contextual Control Model) till flygledningsdomänen. COCOM är en modell som kan användas för att beskriva och förutse kontroll hos operatörer i komplexa system. En central del av modellen är begreppet kontrollnivå vilket beskriver hur graden av kontroll hos ett JCS (Joint Cognitive System) beror av och påverkar de parametrar som beskriver dess prestation. Fokus i denna uppsats ligger på det JCS som omfattar flygledaren i sin arbetsposition.I uppsatsen anpassas Hollnagels generella beskrivning av kontrollnivåer i COCOM till flygledningsdomänen. Till grund för anpassningen ligger en kvalitativ studie i form av observation och intervju av sju operativa flygledare vid en svensk kontrollcentral.
Framtagning av ett förlängningsbart bord
This report covers the product development of a new type of extendable table for the company Karl Andersson och Söner. The company wants to expand their product collection with a new product. Karl Andersson och Söner is a well-known family company that has been located in Huskvarna since 1898, and they are producing furniture for private- and the public environment.The aim with this project is that the product should lead to increased sales, as well as expand their collection to appeal a wider audience. The work is permeated by two issues, to achieve as good results as possible. The issues will bring up how to make a table better, in terms of the competitor?s options, and how to apply a design process to develop a table that meets the markets needs and requirements.The design process of the work consists of strategically picked parts from three separate design processes.
Läraren - från ensamvarg till lagarbetare? : En studie av hur lärarrollen har definierats och förändrats i grundskolans läroplaner från 1962 till 2011.
Forming teacher teams is currently the standard way of organizing teachers in Swedish Compulsory Schools. This is the result of a process that started in the 1970s.Traditionally the culture of teaching has been one of isolation. Once the door to the classroom is shut, what happens behind the door is up to the teacher to decide. Over the past thirty years a lot of time has been dedicated to making fundamental changes in the way teachers interact with their colleagues. Today the idea of teachers forming teams is generally accepted but still the core of a Swedish teacher?s job is that of a lone worker.
Global uppvärmning : A survey of students? knowledge about the phenomenon
Global warming is one of the most debated environmental issues right now, and it could be argued that it is important to study how the phenomenon is treated in schools. The main purpose of this study is to put students? knowledge about global warming in relation with the control documents for chemistry, biology and physics studies. Interviews have been conducted with six students in the 9th grade. The conclusion of the survey indicates that the students generally have a satisfying knowledge about the phenomenon and that they know how they should behave from an environmental perspective..
Frihet i datorspel
A game designer has to consider several aspects when he or she is designing a game. One of those aspects is the perceived freedom in the game by the player. There exist several methods to facilitate this perceived freedom in the design phase of the game. This thesis presents, in a qualitative methodology, a number of these methods a game designer might utilize to give the player a heightened sense of freedom for an improved gaming experience. Included herein are such elements as indirect control, linearity, storytelling and level design..
Internrevisionens roll - ett svenskt perspektiv
The problem area was identified due to the fact that research within internal audit is fragmented and insufficient, simultaneously to internal audit becoming more common in the public debate. Crises and scandals in companies such as Enron in the US and Skandia in Sweden have resulted in new regulations regarding how companies should be governed. These regulations have been established in Sarbanes Oxley Act (SOX) in the US, and in Sweden the Swedish code for corporate governance will be implemented in 2005. The regulations imply that companies must provide sound internal control and to accomplish that, companies should have an auditing and consulting internal audit function. The Swedish code for corporate governance denotes that companies can decide to comply or explain why the code is not complied.
Projektledares psykosociala arbetsmiljö inom offentlig verksamhet : En kvalitativ studie i Värmlands landsting
Thesis in project management, D-level by Chris Baldebo & Anders Persson spring semester2011. Tutor: Lennart Ljung. ?Project Manager's Psychosocial Work Environment in thePublic Sector ? A Qualitative Study in the Värmland County Council?.The purpose of this study is to examine how project managers in the public sector perceivetheir psychosocial work environment in a public organization. Therefore we have formulateda hypothesis based on the assumption that there exist differences in how project managersperceive their psychosocial work environment, depending on whether they work in public orprivate sector.Based on the objective, one research question has been formulated: How do projectmanagers active in the Pegasus program experience their psychosocial work environment? Tobe able to say something characteristic about the project managers psychosocial workenvironment our approach has been to interview five project managers.
Roten till det onda : en studie i häxmotiv, kvinnlig sexualitet, husmoderlighet och moderlighet i Ulla Isakssons historiska roman Dit du icke vill
Ulla Isaksson (1916 ? 2000) wrote many novels, often with a woman or several women as protagonists. In Dit du icke vill (?Where Thou Willst Not?) from 1956 she depicts a crisis of faith in a woman, which would not have been successful had she chosen a contemporary setting. She uses an adequate historical framework, the prosecution of witches in Sweden in the 17th century, well documented in reliable sources.
Produktkalkylering vid bearbetande småföretag
Background - Swedish trade and industry primarily involves small corporations, including small manufacturing corporations. Currently, most costing models that are used are based on studies accomplished at large corporations. This conveys to the fact that product costing that occurs at small manufacturing corporations is based on all complexities that large corporations bring, which rarely match with small corporations. It occurs that small manufacturing corporations unconsciously rely on incorrect information that has been calculated based on great corporations? product costing.