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1117 Uppsatser om Pressure reducing valves - Sida 25 av 75
Bakteriereduktion i diskmaskiner : Studie av olika metoder för att reducera bakterier
Bacteria are a problem that occurs naturally in dishwashers when the dish stands there dirty for an extended period of time. To get rid of the unpleasant smell that the bacteria is causing, the most common solution is to run a regular washingcycle which can cause problems for the environmentally-conscious consumers since this causes unnecessary energy waste and emissions of chemicals in the washwater. To solve the problem in a more environmentally-friendly way by directly attacking the bacteria with an appropriate bacterialreductionmethod can therefore be an attractive feature in a dishwasher. There are many different ways to treat surfaces that have been exposed to the bacteria. Some high-profile methods are UV-radiation, microwaves and oxidant (ozone) that all three have had success in reducing bacteria in different contexts.
Distriktsköterskors arbete med malnutrierade äldre personer inom kommunal hemsjukvård
Background:Malnutrition is a nursing issue that causes both physical and psychological suffering of those who are affected. In order to achieve care that is safe and has a good quality, it must be based on the assessment and actions of the state. District nurses play a central role in this work. Aim: The aim of this study was to describe the district nurses' work with identifying and addressing malnutrition in older people in nursing Home Care of the Community. Method: Six interviews with district nurses were conducted.
Nykterhetsfrågan i Hedemora : vad gjordes och sades av politiker, IOGT och lokaltidningen i samband med folkomröstningen 1922
The aim of this essay is to see how the IOGT, local politicians and the local newspaper acted in the city of Hedemora in Sweden in connection with the referendum held in 1922 whether or not to ban the use of alcoholic beverages. To accomplish this I have examined protocols from local IOGT-groups, the town council and the local newspaper Södra Dalarnes tidning. I find that the local IOGT not only worked with the issue of alcohol but served as an institution that deepened democracy and education in the local community through discussions, study circles and applying pressure on local politicians. The locally elected bodies in turn were generally in favour of the good work the IOGT did, although not always overwhelmingly so. Many of the local politicians that handled the issues of alcohol were themselves active members in organisations promoting absolutism.
Kan man upphandla innovationer?
The aim of this study is to examine how one can understand the experiences that social workers within the social service's have of children who have committed sexual assault against other children, and the social workers? thoughts about the choice of actions and the family involvement in those actions. The study has a qualitative character. Information was obtained through interviews with social workers within two Swedish counties, and the analysis of the results was based on earlier research findings as well as theoretical aspects, such as systemic theory and salutogenesis.Regarding the actions taken for the target group, the social workers have, in many ways, a systemic perspective as they emphasize elements within the child as well as within the family. It is also shown that the collaboration with other authorities affects the choice of actions, and that it is important to involve the entire family in any interventions, so that the effect of those interventions may last over time.
Resursfördelning vid specifika läs- och skrivsvårigheter/dyslexi : Några elever och pedagogers uppfattningar
This study hopes to provide a deeper understanding for the situation that pupils in dyslexia and special education teachers are experiencing. The aim is to examine how students with dyslexia and special education teacher / special needs education teacher are experiencing difficulties, resources, additional adjustments and support. The aim is also to examine the experience in opportunities for improvement and what similarities and differences exist between students and special education teacher / special needs education teacher regarding the allocation of resources. The study is made with focusing on a certain dilemma perspective, using methods such as interviews. The results of the study point to lack of time, time pressure, teachers 'skills, management directives and students' understanding of their own learning as factors affecting resource allocation, in which all factors influence each other and are interdependent of each other..
Reduktion av föroreningar i processvatten från en äggfabrik i Brasilien : Kväve- och fosforrening i anlagda våtmarker.
A water treatment unit consisting of two aeration basins, two settling tanks, a residence basinand a horizontal subsurface flow wetland were used to treat wastewater from an eggprocessing factory in Brazil. The aim of this paper was to determine the efficiency of thesystem in reducing nitrogen, phosphorus, BOD5 and TSS (among other parameters) andgetting a further understanding on different kinds of constructed treatment wetlands as well astheir nitrogen and phosphorus removal processes. The wastewater from the factory consistedof process water from manufacturing and water used for cleaning, no stormwater or sewagewater entered the system. Tests were taken three times a month from October 2013 ?til April2014.
Etiologi och patogenes för benign prostatahyperplasi hos hund
This literature review summarizes available data on infection with the parasitic roundworm, Ascaridia galli, as a cause of disease in poultry, including the consequences of a conversion to alternative production systems. Ascaridia galli has a direct life cycle with resistant eggs that survive and are easily spread in the environment, especially in systems with bedding materials where the faecal contact is high. The infection is usually subclinical but depending on the infection dose, the symptoms range from weight loss and diarrhea to mortality. Factors such as the feed composition and genetic variation among different hybrids clearly affect the establishment rate of the infection. Ascaridia galli will probably become an increasing problem, with a shift from the traditional battery cages to alternative systems where the risk of re-infection is high.
Havsöringens (Salmo trutta) lekvandring i Själsöån, Gotland.
In this study, the sea trout (Salmo trutta) spawning migration was studied in the river Själsöån, Gotland, to assess the main external factors determining upstream migration and seasonal changes in fish parameters. Additionally population trends were studied by examination of old data. The most important external factors for upstream migration were the air pressure, air temperature and wind direction. No significant difference was found between when males and females migrated upstream. Larger females in better condition started migration earlier than the smaller females in poorer condition.
Vad förklarar variationer i frivillig information?
There is an increased pressure for firms to provide the financial market with additional information. Such disclosure is attached with different kinds of costs. In spite of these costs, and in spite of increased mandatory disclosures, firms choose to voluntary disclosure financial information to analysts and others. This indicates that firms also benefit from providing additional information. The subjects of this study is 431 annual reports from firms listed at the Stockholm Stock Exchange for 2002 and 2005 and the objective is to survey factors that can explain variations in firms? voluntary disclosure.
När siffrorna inte går att stävja : En kvalitativ studie om pedagogers föreställningar om elevers matematiksvårigheter
An increasing number of students leave the Swedish compulsory school without having a satisfactory grade in mathematics. Causes why students risk ending up with difficulties in the subject of mathematics are debated but one explanation might be that more and more students are diagnosed with dyscalculia. The purpose of this study is to investigate how educationalists identify and organize their teaching in order to help students with difficulties in mathematics to reach the schools requirement and long-term goals that are defined in advance. It is vital to detect learning difficulties at an early stage. Accordingly, it can be avoided that the student starts to develop a negative self-image due to repeated failures and in the same time provide relevant help.
Rening av lakvatten vid deponin Degermyran i Skellefteå kommun : Utvärdering av nuvarande reningseffekt och simulering av mängden bildat lakvatten under 2000-talets klimatförändringar
At Degermyran landfill, situated in the municipal Skellefteå, a leachate treatment system was installed in 2005. One of the aims of this study was to investigate how well the treatment system works by using data from chemical measurements made on the leachate before and after treatment. Further this study had the purpose of investigating how the predicted climate changes of the 21st century will affect the amount of leachate generated at Degermyran by using a modified version of Thornthwaites water balance model. The treatment system has the ability of reducing manganese by 90 %, nitrogen by 73 % och TOC by 79 %. By the turn of this century the amount of precipitation that percolates the waste at Degermyran will be between 254 and 298 mm, depending on the amount of greenhouse gases that will be released in the future to come.
Nutritionens betydelse för förebyggande och läkning av trycksår
Syftet med denna studie var att klargöra eventuellt samband mellan nutrition och trycksår genom att söka svar på de tre frågorna: Har nutritionen någon betydelse för uppkomst och läkning av trycksår? Vilka näringsämnen behövs för att förhind-ra uppkomsten och främja läkningen av trycksår? Finns de något samband mellan malnutrition och/eller ätsvårigheter och trycksår? Metoden för denna litteraturstu-die innefattade systematisk databassökning och manuell sökning av artiklar från referenslistor. Tio vetenskapliga artiklar med kvantitativ forskning i ämnet har analyserats och sammanställts. Resultatet presenteras i följande fyra tema: Nutri-tionens betydelse, energiintagets betydelse, vitaminers och mineralers betydelse samt bifynd. Analysen indikerar på samband mellan förbättrad nutrition och både minskad incidens och förbättrad läkning av trycksår..
Energikartläggning av polishuset i Gävle : Åtgärdsförslag för ett minskat energibehov i fastigheten Gävle Söder 17:10
The objective of this work was to introduce measures to reduce energy and water demand at Gävle Söder 17:10. To succeed, this energy audit has been made. The work is based on collected statistics from the property owner Norrporten, measurements, literature review and through consultation with experts in the field. Two models, one for each building, have been created in the simulation program BV2 to estimate the potential of energy measures based on the collected information. The models in BV2 have been verified against the statistics of the energy consumption.With the help of calculations and simulations, seven cost-effective measures have been identified.
Lyftkraftsberäkning för vingprofiler: Virvelpanelmetoden
The problem presented in this report is that of finding a method to calculate the lift force from a single-element airfoil of arbitrary shape. A number of restrictions are used in order to simplify calculations while retaining reasonable accuracy. The problem is solved for the two-dimensional case only and no finite-wing effects are taken into account. Furthermore, inviscid and incompressible flow is assumed. The method used to solve the problem is the vortex panel method, with vortex singularities distributed over simplified airfoil geometry.
Reformen, visionen och modellerna - En fallstudie om den offentliga reformens påverkan på stora investeringar i Stockholms stad
This thesis is based on a case study of the City of Stockholm. The study aims to explore the effects on the city's large investments caused by the public reform. Furthermore, the question concerns the character of the impact and if it will affect what type of investments that will be prioritized. The theoretical background is based on Brunsson's ideas about political organizations shifting towards corporate nature, and Almqvist's interpretation of New Public Management (NPM). Moreover, models explaining public management reform, and the main components of corporate shifting, are used.