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4937 Uppsatser om High strength steel - Sida 57 av 330
Återvinning av näringsämnen från hushållsspillvatten med omvänd osmos
Hammarby Sjöstad is a new district in Stockholm with high environmental standard. Stockholm Water Company evaluates a local wastewater treatment plant with cutting edge technology. The first step is an experimental treatment plant (Sjöstadsverket) with four parallel lines of treatment, each with a capacity to treat wastewater from 150 persons. Within the membrane technology subproject the possibility of using reverse osmosis (usually called RO) to regain nutrients is examined.Reverse osmosis separates the incoming water in a clean permeate and a concentrate that, as the name indicates, is a more concentrated version of the incoming water. Using this method in wastewater treatment, a solution high in nutrients can be obtained without the use of chemical precipitation agent and with no production of sludge.
Truppgymnastik
According to recent research the basics for a good body posture is balance between the muscles, if unbalance originates this can be strengthen by gymnastics when most of the practise performs only in one direction. Because of limited research in the area was an explorative study conducted. The purpose of the study was to inquire if exercise adjusted to the individual contributes for balanced muscles and if it contributes for a positive or negative development for the team.On the basics of that the team is not equable an other team in the area has the results for two different periods been measured, during the first period the exercise continued as usual but during the second period each gymnast (n=9) received an individual strength- and stretch program that was performed during the teampractise twice a week. The gymnasts were tested in areas that are imported for them as body posture, balance between the muscles, vigour, range of movement, balance, the running and coordination. The results showed on that the difference is largest between test two and three, except the coordination and balance which did not show any particular change.
Fysikdiskursen på Komvux : Betydelsen av student-lärarinteraktioner
This study draws upon the framework for analyzing the discourse of a science classroom introduced by Mortimer and Scott (2003). It has been used for many studies before on high school youths, but never on adults. Therefore, this study focuses on the interaction between teacher and students in an adult education on high school level in physics, and how students can change the classroom discourse. Observations took place in two different schools for adults, in four different teaching groups. The result was analyzed by pattern of interactions, communicative approach, teaching purpose, type of student questions and their effect on the classroom discourse.
Är fytoremediering en realistisk metod för att rena marken runt Glasriket på arsenik, kadmium och bly?
Phytoremediation is a technique using the ability of plants to absorb pollutants in their biomass from contaminated soils and remediate it. The plants are then harvested and the soil gets purified. This method is more environmental-friendly than the normally used methods for soil remediation. Glasriket in Småland is an area with large amount of pollutants including arsenic, cadmium and lead. This area must be cleaned from these metals because of the high threat to the environment ant the health of people who live here.
NEDKYLNING HOS VANLIG B?NA, PHASEOLUS VULGARIS
Beans are a global source of plant-based protein, and in some countries, they constitute a primary source of protein intake. With ongoing climate change, including rising temperatures, it is necessary to adapt beans to ensure a reliable food supply. An important mechanism that many plants have, to cope with high temperatures, is cooling through transpiration. During transpiration, stomata open and release water vapor. Water molecules use heat energy from the leaf to convert into gas, thereby cooling the leaf.
Arvets betydelse för mjölkkors beteende :
It becomes more important to consider different behaviour traits in the selection for dairy cows to be suitable in the production systems of today. The purpose of this investigation was to study the genetic background to behavioural traits and the heritabilities for temperament, rank order, aggressiveness, feeding behaviour and for learning behaviour. Moreover, the genetic correlations to other traits were studied. To be included in a breeding programme a trait needs to have enough genetic variation, a moderate to high heritability or to be correlated to another measurable trait. Behaviour is a quantitative trait affected by many genes and the environment.
Att producera eller reproducera text? : En studie av fem gymnasiepojkars arbete med skrivprocessen i en provsituation
AbstractAuthor: Annelie JohanssonYear: Spring 2006Swedish title: Att producera eller reproducera text? En studie av fem gymnasiepojkars arbetemed skrivprocessen i en provsituation.English title: To produce or reproduce text in essays. A studie of five high school boys? workwith the writing process in a test situation.City, university: Växjö, Växjö Universitet, institutionen för humaniora [Växjö, Växjö University, School of the Humanities]Pages: 53Content:The major aim of this study is to investigate how five male high school students in the ages seventeen to eighteen produce or reproduce in their texts during an essay examination. Focus is also put on the five students? writing processes in a classroom situated writing task and on their own comments to their writing.
Mjölkraskvigors tillväxt på naturbete :
To turn the dairy heifers out on pasture is the most natural way for the cattle to get feed.
At the same time it is cheap and if it is right treated a feed of high nutritive value. The
problem today is to get dairy heifers to grow enough when they are grazing at natural
pasture for the entire summer. Therefore, the opinions differ whether pasture is a
resource or a problem.
The increasing interest of pasture production is due to the fact that you can receive
grants for preserving valuable natural assets and cultural landscape elements in the
pasture land.
A high grazing pressure is necessary to preserve an open landscape and a great variety
of species. In the same time the heifers have to supply their nutritive needs in order to
grow and be large enough to show heat and be pregnant in right time to calve with a
sufficient body size and at an economically right age.
This paper includes a literature review on natural pasture, pasture production, and
growth of dairy heifers together with own interviews with dairy farmers about their
point of view to the pasture husbandry on the farms, how they plan for pasture, look
after natural pasture, treatment areas and take care of the calves and heifers. The results
indicate that the time it takes and the demanded work are the biggest factors to how and
why the farmers do as they do..
Påverkar mineralbalansering hälsan? : upplevda effekter hos vuxna med visuell problematik
Diabetes mellitus type 2 and chronic obstructive pulmonary diseases (COPD) are two of the most common diseases in the world and the amount are increasing. The treatments of these diseases are self care and a change of lifestyle. For this to be successful there is a need for the person to have knowledge about the diseases and a motivation for making changes in his or her lifestyle. Most of this information is given by the district nurse at the health centre. It is important to get a better knowledge of these persons experiences and how they used the information given to them.
Det allmännas skadeståndsansvar : Skadeståndsansvar för ideell skada enligt frihetsberövandelagen
BACKGROUND: Today?s societal changes, including high rate of change and increasing information flows, are increasing the demand on the individual mental capacity. It becomes increasingly difficult to analytically process all the different dilemmas and everyday decisions as individuals have a limited mental capacity available to make these decisions. Thus, it has been suggested that ego-depleted relies more heavily on intuition, which is less burdensome, when making decision. However little is known about to what extent intuitive decisions differ from analytic.
Hur gymnasieelever resonerar kring rökning och prevention av rökning : fokusgruppintervjuer med rökare och ickerökare
The aim of the present study was to investigate high school students? ways of discussing smoking and prevention of smoking. A total of eight high school students participated in the study. Two focus groups were used to collect data, one of smokers and one of nonsmokers. Data were analyzed with inductive content analysis.
Kartläggning av skidinstruktörers hälsostatus : Generellt förekommande skador inom detta yrke
Good physical, psychological and social health is pursued both at work and at home. There is no current research into the health of ski instructors despite the physically demanding nature of skiing and high injury rate. The purpose of this study is to map out ski instructors physical and psychological health and see if there are common injuries amongst them. This study is a descriptive and correlating study including a survey of ten questions with self reported data from the instructors. Five ski schools from Sweden participated in the study and 86 surveys got sent out to the ski school directors.The result from this study shows that ski instructor´s physical, physiological, well being at work, stress level and self efficacy is good.
Men när sitter ni och läser alla böckerna? En intervjuundersökning av bibliotekariers syn på skönlitterära kunskaper
The aim of this thesis is to study librarians attitudes towards fiction and reading. I have examined librarians fiction reading habits and how they handle the expectations that users may have regarding their knowledge in fiction literature. There have been many studies concerning the librarians information literacy. This work explores librarians competence in fiction literature. The primary question posted in this thesis is: What kind of fiction are librarians reading and how do they feel that they can correspond to the users expectations? The data collection is based on literature on the subject and qualitative interviews with eight librarians from different kinds of libraries.
Förluster i olika ensileringssystem
In Sweden the climate makes it impossible to feed fresh herbage to cattle during many months of the year. During periods when preserved forage must be supplied it is important that this forage is stored in such a way that high quality is retained, both nutritionally and hygienically.
Furthermore, it is essential that losses occurring when handling and storing the forage are kept as low as possible. This study compares storage in tower silos, bunker silos, big bags and bales,estimating dry matter losses as well as losses in metabolizable energy and crude protein that occur during storage. The results show that tower silos, bunker silos and big bags, the systems with the
largest amount of forage and a long feed out period involve larger losses than bales, which are fed out immediately after being opened. As the feed out rate influences the losses, tower silos and bunker silos should be used during the period of the year when the feed out rate is as high as
possible, i.e.
Val av kommunikationsmedia i en affärskontext
Vårt syfte är att undersöka huruvida det är möjligt att identifiera variabler som påverkar valet av kommunikationsmedia där kontexten utgörs av en affärsrelation. Vi strävar efter att i vår slutsats kunna presentera en viss vägledning i valet av kommunikationsmedia. I denna studie har ett kvalitativt angreppssätt använts. För att skapa en teoretisk förankring har vi behandlat relevant och aktuell litteratur bestående av i huvudsak vetenskapliga artiklar och böcker. Som metod för att besvara vårt syfte har vi även använt oss av intervjuer.