This report deals with the performance of a Batch flow treatment of landfillleachate compared with a continuous flow system. The parameters in focus were total Kjeldahl nitrogen (TKN), BOD5 and COD. The pilot-scale experiment used eight barrels with a volume of 150 liters. Each barrel was constructed differently concerning its flow, its bed material grain size and its presence of plants or not. Four of the barrels worked in batch mode, thus four in continuous flow mode.

Four different kinds of filter-materials with reactive surfaces have been studied concerning their capacity to absorb heavy metals in leachate from a municipal waste deposit. The heavy metals studied were: lead, cadmium, copper, mercury, chromium, nickel and zinc. The leachate contains high levels of dissolved organic carbon (DOC) and has a high pH-value along with a high buffer capacity. These characteristics of the leachate make it difficult to remove pollutants and require efficient filters. The filters that were examined in the report are blast-furnace slag with CaO, sand covered with iron oxides, olivine and nepheline.

Business unit Cylinder at ASSA AB in Eskilstuna are having problem with frictions in their production process. Changes are occurring and older products along with machineries are phased out and transferred to low-cost countries. This opens up possibilities to at a larger extend customize physical flows after production flows. The authors where given the task to analyze the production and find problem areas to improve and to give suggestion on how Business unit Cylinder can work to optimize their production flow.The aim of the thesis work is to come up with suggestions on how to reduce the lead time in production and how the tied up capital can be reduced. In more detail the task included to find problem areas that are counteracting an effective flow, give solutions on new flows for the production of the cylinder core, give suggestions for new stock points for the production and how the production shall be managed and controlled.During the last twelve months ASSA AB has sold over 700 different types of cylinder cores, and the product range is very wide.

The work with this report has been focused on developing a methodology model for control at purchase. The methodology model covers parts classification, dispatching systems, batch shaping and more. The aim with the methodology model is that it will be used as an aid for a cost effective material planning to increase the value for customer.The work covers also a description of the present situation and the purchase process at Company X. Six parts have been applied, two from each class (A, B and C), in the methodology/model. The parts that have been applied are included in the flow between Company X and their supplier Company Y.Data have been collected trough literature studies, interviews and the company?s business system.

Uppsatsen behandlar ämnet genus och genusframställningen i barnböcker nu, och för 50 år sedan. För att komma fram till ett resultat har två analysmetoder använts, Nikolajevas mimetiska metod samt en semiotisk bildanalysmetod. Resultatet visar att det skett en förändring av genusframställandet i barnböcker de senaste femtio åren och att den största förändringen skedde i mitten på 60-talet..

Saab Training Systems (STS) in Huskvarna is manufacturing material for educationalpurposes to armies worldwide. They are now implementing parts of the Lean productionconcept in their organisation.One part of the work with Lean production is to eliminate waste. To be able to identify waste,value stream mapping is a good tool and also what we used in our thesis. To gain a betterefficiency in the production of Personnel Detector Device (PDD) flow was one of our goals.The PDD is a harness used during battle training which registers if the user is being hit by itsenemy.Our work with the thesis started up with a short education in Lean production and in valuestream mapping (VSM). The work proceeded with a VSM of the production flow of the PDD,interviews were made and studies of literature were done to gain greater knowledge of thesubject and solve the task.The VSM resulted in five areas which were followed up out of those six we identified.

This essay begins with a literature study of the different propagation methods for roses, and a survey of the factors affecting the rooting of cuttings in general and rose cuttings in particular. The main part of the essay consists of a practical study of the rooting of rose cuttings. I have chosen to examine how the time of year when the cuttings are taken, and the position of the cuttings influence the rooting. Three different cultivars were used as mother plants; ?Maria Lisa? and two Burnet roses; ?King of Scots? and ?Poppius?. The mother plants were container grown ?King of Scots? and ?Maria Lisa?, and outdoor grown ?Poppius? and ?Maria Lisa?.

Treatment wetlands been showed efficient for reducing pollutant in waste water. In Lajeado ? RS, Brazil the landfill has poor leachate water treatment. It is necessary to supplement the treatment plant because they need to reduce BOD, COD and nitrate of the water going to recipient. A subsurface flow wetland (SSF) can be a good choice.  In order to be able to design an efficient SSF it is important to understand how the grain sizes of a substrate affect the reducing of pollutants in waste water.

An excessive input of nutrients to lakes and other water bodies has created a problem with eutrophication in Sweden. Untreated, or partially treated, domestic sewage is a major source for discharge of phosphorus (P), which is the nutrient most frequently responsible for eutrophication of most fresh waters and the Baltic Sea. The waste water can be cleaned by filter materials, which have a high P-retention ability and which after saturation may be used as fertilizers. Four potentially suitable filter materials were tested in batch- and column experiments in this study. In the batch experiments, the following materials were shaken with waste water in time series ranging from 5 seconds to 60 minutes: coarse (1-4 mm) and fine (0-2 mm) Polonite® (heated bedrock from Poland); Filtralite® (light expanded clay aggregates with limestone added before burning); water cooled blast furnace slag (BF-slag) and BF-slag mixed with 10% burned limestone.

 This report deals with thecollaborative project between FagrellProdukt Utveckling AB and studentsfrom the Faculty of Science andTechnology at Uppsala University. Theoverall objective of the project wasin addition to developing students'abilities, to help Fagrell withverification and development ofFagrells prototype, Fundamental flowreactor, for flow chemistry. Theuniqueness of Fagrells flow reactor isthat it should be simple andaffordable compared to competing flowreactors in the market.The verification was done bylaboratory and simulation sessions.The verification shows that Fagrellsidea on how to construct a flowreactor is very good.The development included bothtechnology and business. The result ofdevelopments can be helpful for thecommercialization of Fagrell flowreactor..

Käppala wastewater treatment plant situated on the island of Lidingö northeast of Stockholm is running a project during 2004 and 2005 with the purpose to map out the capacity of anaerobic digestion in the digesters that treat primary and excess sludge. The purpose of this thesis work, which is part of that project, was to characterize the present anaerobic digestion process and to investigate its capacity to treat other organic wastes such as restaurant waste and waste from water works. To decide the potential of both methane and biogas production from different substrates batch laboratory tests were carried out. To imitate the anaerobic digestion process at Käppala continuous tests with small scale reactors were carried out. These reactors were later fed with restaurant waste.The batch laboratory tests showed that primary sludge had a potential biogas and methane production of 0,62 and 0,35 Ndm3/g VS respectively after 40 days of digestion.

Detta  examensarbete  undersöker  skillnaden  i  tre  olika  nybörjargruppers  upplevda flow  då  de  spelat  Magicka  (2011)  med  motståndarantal  som  den  enda  skiljande variabeln.   Undersökningen   baseras   bland   annat   på   Csikszentmihalyis   (1990) flowteori och Caillois (2001) teori om att tävlande slutar vara roligt då det  urartar i kaos.  Syftet  med  examensarbetet  har  varit  att  hitta  när  mest  flow  uppstår  då nybörjare på Magicka (2011) spelar mot  en viss motståndartyp, samt om  detta flow bryts  när  för  många  motståndare  introduceras.  Undersökningen  har  visat  att  nio motståndare har resulterat i betydligt mer flow än tre, medan skillnaden mellan nio motståndare  och  18  har  varit  obetydlig.  Examensarbetet  har  dock  inte  lyckats kvantifiera  var  flow  övergår  till  kaos  med  den  testgrupp  och  motståndartyp  som använts.  Framtida  forskning  skulle  exempelvis  kunna  undersöka  på  vilket  sätt  ett varierande  motståndarantal  skulle  påverka  flow  för  en  mer  erfaren  testgrupp  som spelar mot andra motståndartyper..

Starting out as a minor form of amusement, the game industry has become one of the most lucrative andsuccessful in the entertainment business competing against giants such as television, movies and music.As the internal competition within the developer community grows companies work hard at discoveringnew ways to attract and keep customers. By having a playcentric approach focusing on user experiencethey hope to achieve that goal. This thesis describes the process of designing a game with focus on theplayer. We apply the concept of flow on game development and investigate through research throughdesign if we are able to create a game that keeps the player in flow.Play tests showed several elements such as control issues and too difficult challenges early in the game,affecting the possibility for players to experience flow while playing. These negative factors came to becalled flowleakers.

Syftet med föreliggande studie var att undersöka hur ryttare upplever Flow, och vidare även hur ryttare upplever samspelet inom ekipaget vid Flow. Studien inkluderade 10 kvinnliga informanter (M = 18.7, SD = 1.48) med tävlingserfarenhet som sträcker sig från ingen alls till internationell nivå (Hoppning= 4, Dressyr = 3, Fälttävlan = 2, Ingen tävling = 1). En semi-strukturerad intervjuguide utvecklades utifrån Csikszentmihalyi's holistiska perspektiv på de nio dimensionerna av Flow (Jackson & Csikszentmihalyi, 1999), och data analyserades kvalitativt genom en innehållsanalys. Resultatet visade både att ryttares upplevelse av Flow stämmer väl överens med andra idrottsutövares upplevelse (Swann, Keegan, Piggott och Crust, 2012), och bekräftar tidigare tolkningar av att ridsporten skiljer sig från de flesta andra idrotter genom att utfallet till stor del är beroende av interaktionen och samarbetet mellan häst och ryttare (Beauchamp & Whinton, 2005). Vidare visar resultatet även att samspelet mellan häst och ryttare är en viktig och oersättlig del i upplevelsen av Flow..

The component workshop at Atlas Copco inTierp intends to reduce the costs inorder to increase their competitiveness.This thesis examines how the productionmanagement around cylinder washersshould be managed in a way that meetsthe customer needs. The customer to thecylinder washer is Atlas Copcos assemblydepartment in Tierp.The purpose of this thesis is to providean alternative way of managing theproduction. A chapter of theory is addedto give the reader an insight ofdifferent types of production managementsystems as well as the underlyingknowledge needed to get a better readingexperience. An introduction of kanbancan in theory help Atlas Copco in thedirection they strive. It should beclear how the purpose of this thesisaffects the cost for the componentworkshop and also how it relates to thecurrent production.