Chlorinated solvent are volatile organic substances that can be harmful for humans and for the environment. Examples of common chlorinated solvents are perchloroethene, PCE, and trichloroethene, TCE. Chlorinated solvents appear as contaminants in soils primarily where they have been used as washing fluids in dry-cleaning facilities or as degreasers in metal industries. Chlorinated solvents are DNAPLs (dense non-aqueous phase liquids), which means that they are not easily dissolved in water and that they sink to the bottom of the aquifer. Adsorption to soils is low so chlorinated solvents are mobile in soils.

It has become more common for organization to operate a lot of projects at the same time. These projects affect each other, either in way of resources or technical. Projects in a multi-project environment depend and affect each other, and in most cases they rival about resources, decision-makings and priority. To lead a project portfolio with several projects is a major challenge. The most common problems that occur are vague objective, unclear working conditions, resource shortage and problems of priority.

This thesis work has been performed at the department of diagnosis and dependability at Volvo Car Company, Torslanda. The background of this project is based on interest in ascertaining how different factors possibly can affect a diagnosis method, which has been developed to find leaks in the fuel tank and evaporation system. According to the OBD II requirements leaks with an orifice diameter larger or equal to 0,5 mm, must be detected. The idea of the diagnosis method is to create an over pressure in the system with an air-pump. The current through the pump is measured and correlates to the power consumed by the pump.

This thesis is based upon the work done at Westinghouse electric company (WEC)inVästerås during the spring semester of 2015 and describes the development of a quickcoupler with associated blade changing tool. These are meant to be used togetherwith a sawing tool that the company uses for the dismantling of nuclear reactors,which is performed under water.The aim of the thesis was to develop a complete manufacturing documentation withdrawings and related CAD models which Westinghouse later can use to manufacturethe tool and the quick coupler. It was also included in the assignment to, if necessary,modify parts of the saw tool to adapt these to the intended blade changing tool.A number of visits to the company's workshop was made during the time to study thesaw that the thesis is based upon. The purpose of these visits was to get a better ideaof the dimensions, construction and the field of use of the saw. On three of thoseoccasions various engineers and consultants accompanied us to discuss possibleproblems with different ideas.This was interspersed with information in the form of literature studies on quickcouplers to create a clearer picture of the nature of the task.When enough information had been gathered a functional analysis was made to dividethe main problem into subthis phase the idea and concept generating process took place.The methods used for this was mainly brain writing and brainstorming.

This is a thesis project in the field of information technology which begins by evaluating existing food price comparison systems and subsequently aims to design an improved, web based system for said purpose. The system features interfaces for price reporting, price comparisons as well as various search and review functions. The objective is to create a system able to compete with existing price comparison systems, which requires careful selection of products that can be found in all foodstores that also represent different households; a user-friendly price reporting and price comparison interface and an efficient tool for ensuring the validity of reported prices.The designed system features a more accurate formula for calculating average prices in events where the real price is missing; a more reliable security mechanism forv alidation of reported prices and a more comprehensible interface for viewing price reports, reporting prices, reviewing stores and products in comparison with existing systems. The system does, however, suffer from some optimization issues primarily in the form of inefficient database modeling; SQL queries and JavaScript code although testing has shown that these shortcomings do not hamper overall performance to such a degree that usability is compromised. Further usability testing performed on the system with five test subjects shows that a high level of overall user-friendliness has been achieved even though some special features, such as the detailed report containing price information per product for each store need to be improved.It is not possible to say at this time whether or not the designed system will be able to compete with existing ones or if the very concept of food price comparisons per se is viable in terms of profitability and marketability.

The discharge from Lake Mälaren is regulated to keep the lake water level within limits set by a water decree. Despite this, in the year 2000 the lake water level rose above the upper limit. Studies conducted at the climate modeling unit Rossby Centre at the Swedish Meteorological and Hydrological Institute (SMHI) indicate that the inflow to the lake may increase in the future. A flood in the area will, among other things, strike infrastructure and residential districts.The aim of this study was to investigate the water levels of Lake Mälaren in future climates. In addition to this possible future expansion of the lake discharge though the sluice gates in order to keep water levels below limits set by the water decree and to prevent flooding of the shoreline were discussed.

The  construction  industry  is  a  costly  business  such  in  respect  of  capital  for  most construction defects which then require rework, tear down and rebuild again. This study is  meaningful  awareness  of  tools  that  can  reduce  this  best  through  communication  and information sharing between the parties.  The  construction  industry  is  known  as  temporary  projects  organizations,  where  the construction  project  consists  of  several  actors  who  have  to  communicate  and  share information  between  them  to  avoid  mistakes  later  in  the  build  time.  These  actors  are bounded together thus for the duration of the project, then broken when the project has reached its end. The challenge here is for these actors to apply a tool that can help and simplify communications, information sharing, and perhaps the most important aspect is to  create  a  routine  for  the  association  and  the  shattering  of  these  actors.  To  implement such  behavior  using  a  tool  such  as  BIM  in  the  industry  whose  size  perhaps  is indescribable may be a very hard task.  BIM (Building Information Model) could be seen as the solution to this problem because it  acts  as  a  portal  where  the  actors  involved  must  sign  in  and  communicate,  share information, and eventually create a behavior, a routine for this association and division of  the  actors  following  the  end  of  the  project.  The  technology  could  help  the  involved from  the  beginning  of  the  project,  already  in  the  model  stage,  break  down  and  prevent any construction barriers when the building has been placed in the works.

Intergovernmental Panel on Climate Change (IPCC) recognizes glaciers as the best land-indicator of climate change. A variety of studies have concluded, using both modeling and field studies, that above all climate parameters precipitation, particularly winter precipitation, and summer temperature controls the change in glacier mass balance. With global warming almost all glaciers on Earth are losing mass. In this study, the summit-glacier constituting Kebnekaise's south summit (called the Southern-summit henceforth), Sweden's highest point, is studied to see how it is affected by winter precipitation and summer temperature during the period 1968?2013.

Inom området egenregiutvecklade projekt i byggbranschen är många aktörer inblandade, ofta är de anlitade i form av konsulter, vilka involveras i omgångar i ett tidigt projekteringsskede. Arbetsgången inom den projektgrupp som bildas styrs av beställaren vilken innehar rollen som samordnare för den data dess medlemmar kommunicerar mellan varandra. Då de olika disciplinerna arbetar i olika tekniska nivåer förloras information i kommunikationen inom projektgruppen då 3D-modeller exporteras som pdf-filer. Syftet med examensarbetet är att reducera tidsåtgången, och omarbetningar i förprojekteringsskedet, vilka ökar då kommunikationen brister mellan aktörerna i projektgruppen med resultatet ökade projektkostnader. Ambitionen är även att skapa ett intresse och förståelse för vilka fördelar och vinster som kan erhållas vid användningen av BIM genom att skapa en 3D- modell med viss information införd, som presenteras för projektgruppen.

The issue about how Scania shall perform HVAC tests in the climatic wind tunnel CD7, which Scania is about to complete by year 2013, has resulted in four test methods for truck HVAC and also a test method structure. The test methods have been chosen to focus on sun, snow and rain simulations. These are adapted and developed according to what should be tested and to what can be tested in CD7, which has been the object. With CD7 different climates can be simulated in a controlled environment for complete truck level, from desert with high sun load to arctic cold and snow.The test methods represents a basis to start from, for designers and test engineers which make the testing more repetitive as well as time eventually can be saved. Before the test methods can be applied they must be verified as they are based on theoretical and empirical assumptions.

3D-modelling in AutoCAD This thesis is done in cooperation with LB-Hus in Bromölla, and have aimed to establish a digital AutoCAD model of one of the company?s house types and to find out what opportunities there are to do visualisations in the form of images directly from the programme. Modeling has been carried out so that the very construction of the house is included. Interiors and installations, with the exception of the ventilation system, have been left out in the model. The model has been created with solid models after a comparative study made between solid models and surface models to find out which option in this case was the easiest to handle and took up the least space.

Jag har som examensarbete på master-nivå formgivit en sittmöbel med utgångspunkt från min uppväxt i Dalarna. Målet har varit att göra en filosofisk tolkning av mina minnen samt en hyllning till regionen, i synnerhet Borlänge där jag växt upp.Jag har under projektets gång gjort en resa både på ett mentalt och rent fysiskt plan tillbaka till den plats jag växt upp för att utforska mina minnen och därigenom skapa en plattform för mitt designarbete.För att nå mitt resultat har jag använt mig av designmetoder som ITK, intervjuer, skisser, studiebesök, materialtester, mockups samt modelleringsverktyget Rhino.Resultatet är en stol inspirerad av saker som bland annat Ornäs stugan och musikkulturen i Borlänge. Stolen består av en metallkonstruktion, trädetaljer vid fötterna samt armstöden och en sits i läder.For my thesis work on postgraduate level, I have designed a chair based on my upbringing in Dalarna. The goal has been to make a philosophical interpretation of my memories and a tribute to the region, particularly Borlänge where I grew up.During the project I have made a trip both on a mental and physical level back to the place where I grew up to discover my memories and thereby creating a platform for my design work.In order to achieve my result, I have used design methods such as ITK, interviews, sketches, field trips, materials testing, mockups and the modeling tool Rhino.The result is a chair inspired by things like Ornässtugan and the music culture in Borlänge. The chair consists of a metal construction, wooden feet and armrests and a seat made from leather..

Under senare år har allt fler organisationer och företag insett hur viktigt det är att identifiera och förstå sina processer, och för att kunna styra och utveckla dem, är det bra att veta vilka de är. Därför vill Reumatologi kliniken veta vad som händer med patienter som har psoriasis artrit, när dem är nyinsjuknade eller ska börja behandlas på deras klinik, samt hur hanteras smärtproblematiken, när de återkommer till kliniken, detta har vi gjort genom att kartlägga processer och sammanställa på vilka olika sätt dessa patienter hanteras på kliniken idag, vart remitteras de? Hur ofta förekommer detta? Vad gör att vissa remitteras och andra inte? Förslag på hur kliniken kan använda denna kartläggning i framtiden.Detta examensarbete genomfördes på uppdrag av:Centrum för Teknik i medicin och hälsa, CTMH, i samarbete med Karolinska Sjukhuset. Arbetet omfattar 15 högskolepoäng.Vid detta arbete har vi använt oss av djupgående intervjuer för att få en djupare insyn i den reumatologiska klinikens handläggningsprocesser. En konstruktionsmodell har utvecklats för att identifiera vilka intervjufrågor som är relevanta för detta projekt.

I mitt examensarbete har jag undersökt om det lämpar sig att använda en manuell metod för att skapa normal maps till icke-organiska polygonmodeller avsedda för datorspel. Jag har använt mig av Photoshop för att måla normal maps som jag sedan applicerar på lågdetaljerade modeller jag skapat, för att höja detaljgraden avsevärt. Då icke-organisk modellering inbegriper modeller som ska representera hårda ytor, och därmed inte animeras med deformation, så antog jag att denna metod skulle lämpa sig väldigt väl åt dessa ytor som ofta har extremt mjuka former och precisa vassare kanter. Min metod har varit att studera litteratur om Normal Mapping och hur man använder Photoshop för detta. Jag har sedan utfört praktiskt arbete för att utvärdera hur effektiv metoden är samt vilka fördelar den bidrar med. Jag går igenom teori för normal mapping som jag stödjer med hjälp av faktatexter och instruktions-DVDer i ämnet för att sedan redovisa metoden jag använt i mitt arbete. Jag avslutar sedan med en diskussion kring mitt resultat och redovisar vad jag kommit fram till genom mina experiment. Jag kommer fram till att Normal Mapping med Photoshop är mycket väl lämpat åt hårda ytor och även bidrar med optimeringar i arbetsflödet både vad gäller organisering, tidsåtgång samt kontroll över resultatet.

For many years, the construction industry in Sweden has not developed much of an integral approach for design across disciplines. The sector?s impact on society, economics and environment is huge. To make the interactions within the construction industry more efficient, a relatively new concept called BIM (Building Information Modeling) has been introduced. The idea with BIM is that the different actors of the construction industry will work through intelligent CAD software, with common file formats and more cooperation between different actors during the various steps of the building and construction process.The technical consultancy company WSP Sweden is working actively to implement BIM within the frame of its activities.