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4514 Uppsatser om Flow problems - Sida 20 av 301
Sedimentprovtagning av dagvattendammar som ett alternativ till flödesproportionell vattenprovtagning
Stormwater run-off from surfaces such as roads or rooftops is often polluted with heavy metals and nutrients. Many of these substances can cause great damage in biota if they end up in the recipient. In Sweden constructed wetlands and ponds for treatment of stormwater are frequently used, since research has shown that these treatment ponds are reducing stormwater pollution considerably to a low cost. The knowledge of these pollutant removal mechanisms and how follow-up and assessment of the ponds should be performed is still limited.To determine the pollutant removal efficiency of the stormwater ponds it is recommended that flow-weighted water samples are collected from both the inflow and the outflow of the pond. This method demands considerable resources of time and money for installations and analysis.
Utveckling av en metod och en utrustning för mätning av bränslesprayers rörelsemängd
A new type of device for measuring thev m& ?rate of fuel sprays from a diesel fuel injector has been developed and the various steps in the development are described. The device works by deflecting all of the sprays from the injector at the same time by using a bell shaped deflector. A load cell consisting of a machined steel part with strain gauges mounted on it measures the resulting force. The shape of the curvature in the deflector bell shape has been evaluated by photographing the flow in a 2D?version of the curve shape.
Ropen hörs skalla, samverka alla : En kvalitativ studie om samverkan mellan myndigheter utifrån projektet "Unga vuxna"
On the basis of theoretical knowledge about the complex of problems which can occur in an implementation of a collaboration project, the purpose of this essay is, to examine how representatives on each authority relate to and manage collaboration as a work method, the awareness of problems within the organisations that collaborate, and the preparedness around how to manage problems with collaboration. "Unga vuxna" is a collaboration project between Kalmar county council and all 12 municipalities in the county council. More specifically it is a cooperation project between psychiatry and social services. Theories used in this essay are professor Berth Danermarks studies about collaboration, and social psychologist Jay Hall?s theory about capability.
Spillvärmeåtervinning ur kylvattensystemet ismältverket på Sapa Profiler AB i Sjunnen
The smelting process at Sapa Profiler AB in Sjunnen generates large quantities of waste heat which is absorbed by the cooling water when the aluminum is cooled down. This paper is the result of a Master?s Degree Project aiming to present the conditions for recycling the waste heat. The cooling water absorbs the heat from the aluminum at an average rate of 600 kW and the paper shows that it can be used to replace electrical power consumption for heating the production plant?s facilities.
Urinsorterande toaletter : rensning av stopp samt uppsamling och attityder
It is important that the current urine separating systems are evaluated to allow improvements to be made and consequently increase their future propagation. In order to increase the knowledge about urine separating systems this study was made. It included, among other things, measurements of amounts of urine as well as of the composition of urine collected at Nytorgsgatan 4 in the city of Hallsberg. The study was increased after an inquiry that also included the district of Understenshöjden in the city of Stockholm. In the inquiry, the users were asked questions about odour, cleaning of toilets and occurrence of blockages in the urine water locks etc.
Hållbar stadsutveckling? : Problem och målkonflikter i planeringen av Hagastaden och Norra Djurgårdsstaden i Stockholm
The major environmental problems that we have today are frequently mentioned in the media today. One example is the ongoing debate regarding global warming and its causes and consequences. There are also several other problems in our society such as segregation and social tensions. Most agree that we must do something to solve these problems and that we must try to achieve a sustainable development for the entire planet. But how should it actually be done and what trade-offs, compromises, sacrifices and changes must be made?The purpose of this paper is to examine how these issues are being dealt with in Swedish city planning.
Visualisering av produktionseffektivitet : Utveckling av ett verktyg för övervakningav avbrott och presentation av TAK
Many companies do not register all the stops that occur in a production plant, it often takes longer to report than to fix the problem. If no problems are registered, you cannot trace where the problems arise.This master thesis was performed at AcobiaFLUX and they have noticed an increased demand from their customers to trace problems raised in their processes. The aim of the thesis was to find out how a tool to monitor a process best could be developed. Then the most essential from the theoretical base was developed into a useful tool for operators. For the operators to know if the process utilizes the full capacity of a process, the tool presents a measure of the Overall Equipment Efficiency, OEE.
"Natten är dagens mor": Lars Noréns pjäs tolkad utifrån ett vetenskapligt och systemteoretiskt perspektiv
Our purpose with this essay was to analyse the play "Night Is the Mother of Day" written by Lars Norén, and to investigate how the family members/characters in the play interacted.By analysing the family with help from the system theory and by comparing the family with scientifically proven facts regarding drug abuse complexities, this essay explains the family's behaviour pattern and main dysfunctional problems.This essay explains the similarities and non similarities between the science and the specific theatrical play being used. It also rise the question whether there are advantages with analysing plays in terms of increasing the ability to relate to difficult problems and create a greater empathy and understanding for people involved with social problems..
Sju heuristiker för utvärdering av webb-API:er
The amount of web APIs that are open to the public is increasing fast. Both the free web APIs as well as the ones that cost money to access. Both bigger and smaller organizations, professional and non-professional developers use these web APIs to add value to their systems or use it to create new applications. This is an area study where alot of research has been done in the last few years. In spite of this there are still no user-centered evaluation methods for web APIs.
Vinna eller försvinna : En kvalitativ studie om spelberoende
This is a qualitative study where the purpose was to investigate what professionals experience to be the reason for an individual to become addicted to gambling and continues to gamble even though it leads to negative consequences. The purpose was also to investigate what the professionals experienced was of importance for an individual to recover from a gambling addiction. The study was based on qualitative semi-structured interviews with knowledgeable individuals in the field. The main findings of the study were that the motivation for individuals with a gambling problem to continue gamble was that they saw gambling as the solution to their problems by winning back lost money. It was common that gambling was an escape from anxiety, guilt, shame, and other gambling-related problems such as financial liabilities.
Hedersrelaterad problematik : - En kvalitativ studie om skolans möjlighet till förebyggande arbete
The issue of honour related problems in schools are important social problems in Sweden. It?s not unusual that honour related problem has had serious consequences before any action has been inserted by society. Sometimes the efforts made by society have had no impact whatsoever due to them being inserted too late. We can conclude based on our literature and our interviews, the importance of prevention.
Hylshantering samt flödesanalys
Trioplanex International AB is a part of the group Trioplast Industrier AB, which produces packaging materials for the film and hygiene industry. The group is active throughout Europe, where most of the production is located in Sweden, with head office in Smålandsstenar. Operations in Landskrona consist of Trioplanex International AB and Trioplast Landskrona.Semi-finished articles consisting of paper cores, so called bobbins, give rise to a high amount of core waste in any form of core cutting. The objective of the report is to map out all core waste and illustrate the material flow with regard to present layout and equipment.In the beginning of the project an analysis of the current process was carried out with focus on the cutting equipment. A case study in the form of an improvement work took place in order to reduce the causes which had the biggest impact on existing machinery.Improvement proposals were discussed by the author together with supervisor, assigner and other parties involved.
Fången mellan två världar : Sektavhoppares psykosociala problematik
The purpose of this thesis is to study the personal problems that can occur when defecting from a destructive cult, and what kind of support you may need from social authorities. The aim is to develop guidelines for social workers who are in contact with sect defectors. It?s a qualitative study based on interviews with six defectors from Jehovah?s witnesses. The results shows that all the defectors that have been interviewed have had anxiety problems, lost contact with friends and relatives, low level of education, and low self esteem when defecting or after.
Den närståendes upplevelse av kommunikationen - förändring och strategianvändning vid Parkinsons sjukdom
The aim of the study was to investigate how a significant other of threepersons with Parkinson?s disease experienced the communication in conversation. Astructured interview and analysis of a video recorded conversation was performed.The questions in the interview were aimed at mapping the significant others?experience of communicative problems, their frequency, degree and conversationstrategies used by a significant other in conversation. The result showed that thesignificant others? experienced problems in communication related to the disease inseveral different areas for two of three participants with Parkinson?s disease.
Farthinder med förhinder : om acceptans
A great amount of todays drivers? are constantly exceeding the speed
limits on the roads. As a consequense of this, a large number of
speed redusing devises, for example speed bumps, has been built
around the country.
As reports in local medias point out, the acceptance for these types
of speed reducing devises, differs and there are many thoughts about
location, construction and effect on the traffic safety.
This paper approaches the complexity of these problems from the
drivers? point of view, based on literature studies and a
questionnaire. The goal is not to argue for or against speed reducing
devises, but to try to find the source of annoyment and how to
proceed further.
Some of the problems turned out to be easy to fix, for example porly
marked speed bumps.