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3070 Uppsatser om Water works waste - Sida 40 av 205
En kvinnas mansbilder : kontextualiseringar av Maria Fribergs konst
The aim of this essay is to debate the narrow contextualization of the works of Swedish artist Maria Friberg, in which she is interpreted as a female, feminist artist engaged in masculinity studies. Art reviews and exhibition catalogues regarding a great part of Friberg?s work have formed the core body of information in this study, selecting the more recent works entitled Still lives (2003- ) as the main focus. These show a change in Friberg?s artistic expression.Subjects concerning group belonging, identity and existential questions have always been present in Maria Friberg?s art, but they are more clearly expressed in her latest works.
En (o)balans av berättelser : En kvantitativ studie om mångkulturell litteraturundervisning i gymnasieskolans svenskämne
The purpose of this essay is to examine what literary heritage teachers communicate in the school subject Swedish at upper secondary school. The overall research question for this work is: Which authors and/or works are mentioned by the teachers in the school subject Swedish at upper secondary school? How well do these authors and/or works answer towards a multicultural perspective? Which factors affect teachers´ selections of texts? Based on this purpose and these research questions, the aim is to answer the didactic question of what.To accomplish the purpose of the study a quantitative method has been used. The survey was conducted in two medium-sized cities in central Sweden, and was answered by 17 teachers. The study shows that the teachers ascribe the Western and Swedish literature great importance.
Småskalig elproduktion i Arvika
Arvika Fjärrvärme AB, a district heating company from Arvika, today cover 74 % of their total energy production with biofuel wich runs a 16 MW bioler giving process water at saturated liquid state.In recent years Vaporel AB has introduced a new tecnique that gives an external generation of steam after boilers. The concept is built on an adiabatic pressure drop of the saturated liquid in a so called Flashbox which makes a small part of the liquid to evaporate. The generated steam is lead into a turbine where electricity is in a conventional manner.The purpose with this rapport was to do a basic study for the specific system at Arvika where it?s possible to see the potential production of electricity that follows an installation of a flasbox.The final goal was to introduce an economic analysis of a flashox installation at given conditions.To reach our goals we have created a model in Excel where we used the given conditions at Arvika Fjärrvärme to do our calculations. The model has been tested at three different states, of process water returning to potboiler, to be able to decide the optimal operation for the system at present.The studies have resulted in a pressure of the processwater at 14,5 bar (at) and a pressuredrop to 9,5 bar (at) in the flashbox.
Biochar as soil amendment in flow-through planters - for increased treatment of zinc roof runoff
In times of increased flooding, enhanced by climate change, polluted stormwater poses an increased threat to the environment through contaminated water entering waterways. Bioretention utilizes natural processes in soil and vegetation to treat pollutants and combat this threat. Biochar produced through pyrolysis, has a high cation exchange capacity (CEC) and could therefore increase treatment in bioretention systems. This research applies a literature review, interview, and a model to explore the benefits and disadvantages of biochar in order to specify a soil-mix through an understanding of the production process and preferred application rate. High purification through CEC, increased water holding capacity, and carbon sequestration being the benefits discussed.
Uttorkningsmöjligheter i ett fuktskadat badrum med hjälp av spaltmetoden
Buildings today are built to maintain a healthy indoor environment and an efficient energy usage which is probably why damages caused by dampness has increased since the 1960?s.A study between year 2008 and 2010 showed that 26 percent of the 110 000 examined houses had damages and flaws caused by dampness that could prove to be harmful later on. This means that one out of four bathrooms risk the chance to develop damages by dampness. Approximately 2 percent of the houses had already developed water damages. It is here where the problems appear.
Hydroakustisk kommunikation med bandspridningsteknik
This thesis investigates techniques for stealth hydroacoustic communication using spread spectrum. The Swedish naval defense organisations have a vision that all their units should be able to communicate with each other, even between underwater vehicles. But the properties of water makes it a complex channel to use for wireless communications. Radiomagnetic waves have very limited range in water, therefore acoustic waves are used. In this report the basics of wireless communication systems are described including source coding, channel coding, modulation techniques as well as different techniques for spread spectrum.
Inventering av flodpärlmussla i Fylleån norr om Gyltigesjön
Freshwater environments are threatened worldwide, of which many of the species associatedwith freshwater. In 2014, 243 freshwater mussels were on the international Red List. One ofthem is the freshwater pearl mussel, Margaritifera margaritifera, which because of itscomplex life cycle can be counted as an indicator of whether a stream is worth protecting. It's since the early 1900's in decline throughout their range. Sweden is counted as a core area which is why we have not only a national but an international responsibility to conserve the species.
Tillståndsprövning - för lantbruk med djurhållning : en intervju undersökning med länsstyrelserna i Kalmar- och Hallands län.
The task of making a correct application for B- activities is the foundry time consuming
task. Information and facts concerning your entire business activity shall be attached into
a description of environmental consequences, which will be the basis for the decision
making whether the activities shall be granted a permission to practise environmentally
hazardous actions or not.
When the Environmental Act were established 1999, the permission process became
more extensor. With this study I want to give an insight about how these applications are
made. The methods I have used to collect information are a study literature where the
Environmental Act has been the focus, and qualitative interviews with two County
Administrative Board. I used the Environmental Act to understand why permission is
needed and the interviews to give me insight in how the work is done.
My conclusion is that it is very unusual that an application is granted without
complements.
Tekniska system i förskolan : 3-5 åringars uppfattningar om mobiltelefoni
This report will describe a project between two students from Karlstad University and Markus Norström from Hovercraft solutions. The project aim was to develop a cabin for the hovercraft 380TD. The project was divided into two sub parts; one concerning the design of the cabin and one concerning the engineering. Throughout this rapport you can follow the engineering part of the project. The project has followed a systematic product development process resulting in optimized results for material selection and engineering solutions.
Referensvåtmarker för uppföljning av växtnäringsretention i anlagda våtmarker
One of the environmental problems today in seas, lakes and streams is eutrophication. This is often caused by nutrients such as phosphorus (P) and nitrogen (N) that leak from agricultural areas. A measure to partly prevent the nutrient discharge is to construct or restore wetlands.In order to control the efficiency of nutrient reduction of existing wetlands in the county, the administrative board in Västra Götaland wants to find different criterias for reference wetlands. These reference wetlands should represent other wetlands and be used in future evaluations of reduction of nutrients and design of constructed wetlands. According to the administrative board in Västra Götaland the reference wetlands should have a catchment area of about 50 hectare consisting of at least 70 % arable land, to represent wetlands created to remove nutrients.
Gestaltningsförslag för Norbyvreten : från kvarterspark till stadsdelspark
The prevailing food and energy crisis of the world, due to the declining reserves of fossil energy and a never ending rise of consumption, forces us to look into new fields to supply our energy demand. The boom of bio energy is criticized, as food crops are used to provide biodiesel and ethanol and the volumes are ridiculously small to supply world demand. Algae are one of the world?s oldest life forms and exist in many different phyla, providing a great variety to choose from, for different purposes. Cultivating microalgae offer a way to produce energy at great volumes without competing with food production and at the same time the algae offer a way to use our expensive nutrients in a more efficient way, besides this the algae are carbon dioxide neutral since their carbon source can be supplied by the atmosphere and the additional energy required can be supplied by algal oil or other renewable sources.
1600-talets urvalsprocesser för tryckta verk : Produktion och distribution av böcker och dissertationer i Stockholm och Uppsala
During the 17th century the production and distribution of printed works increased in Stockholm and Uppsala. However, all works that the publisher wanted to print, did not reach the reader. This thesis aimed to show when, where and how printed books and dissertations did not reach the reader. To achieve this aim, aspects of several well known models showing systems of book production and distribution were combined and adapted to suit Swedish conditions in the 17th century. This combined model focused on processes of selection and was presented and used as a theoretical approach.
Metoder att förhindra nedisning av vindkraftverksblad
ABSTRACTMany wind turbines have problems with icing and there is still no effective method to de-ice without stoppage of production and power loss. Here I therefore consider other methods than those available today, and particularly, I consider how these methods could be applied to wind turbines of the company Oxel. A surface where the water droplets do not attach might be the basis for a useful method. If no water attaches, no ice could form. To accomplish this a hydrophobic surface is nessesary, for example wax.
En kommunikations hemlighet : En studie om externkommunikation inom en ideell organisation
My essey concern the non-profitable organization Ung företagsamhet and their extenal communication with collaborators. I have done three intervjues with three of Ung företagsamhets 24 district in Sweden, and these are Kalmar, Jönköping and Skåne. My qustions conserns their rethoric and strategic communications channales, and the focus lies in their external communications with collaborators. I have also made a secondary data analysis about their media coverage and seen how they consciously works with it.Ung Företagsamhet is a non-profit organization that need good partnerships in order to survive financially. My analysis shows that the three different regions works variously with their external communication.
Informationskrigföring : den nya teknikens hot
The new information society has revolutionised almost the entire world. But the new technique does not only bring good. That which was before only available on paper may today only be available on a computer system. This makes it possible to send data electronically. In the wrong hands that information can become a threat against the security of an individual, a company or even a nation.