At the Division of Electricity at Uppsala University there is an experimental rig forhydroelectric generators. The experimental rig?s vital part is a 12-pole synchronousmachine, whose electrical characterizing parameters (resistances, inductances andtime constants) are unknown. The aim of this thesis is to characterize the machine inits current state by perform a Standstill Frequency Response (SSFR) test. From theanalysis of the measurement data, which is a part of the test, a set of basic parametershave been received.

The cost of construction projects have increased during the past few years. Different actors in the construction industry work together to advocate various measures to mitigate these cost increases. One of these measures is to try to improve the efficiency in the phase of production. By striving for a kind of standardization with a constant quest for improvement, the productivity can increase while the costs of production fall.For this thesis has a case study been conducted at the construction company JM AB which is seeking this. They call the approach structured production and have implemented various measures to achieve a more productive output.Based on information from reconciliations, the cost and the spent hours of craftsmen have been analyzed at the company where the case study took place.

En central del i ett systemutvecklingsprojekt är de tekniker som används för att strukturera organisationer och informationen i dessa. I flera årtionden har traditionella tekniker utvecklats. Exempel på tekniker som anses traditionella är ER-modellering och dataflödesdiagram. Idag används objektorienterade programspråk mer och mer för att implementera databaser. Det har dock inte funnits stöd för att analysera ett system objektorienterat förrän i början på 1990-talet.

During my time as a student of education I have learnt that it is my responsibility, as a teacher, to adjust the ways in which I teach to the needs, abilities, experiences, and thoughts of each individual child. What I have not yet gained much knowledge on is how to go about finding the children?s thoughts.In this thesis I investigate the interview as a method of finding out how sixth graders think about their mathematics education. Four children were interviewed. In addition to these inter-views, as a means of giving a broader perspective to and a greater understanding of the chil-dren?s answers, one math lesson was filmed and the math teacher was interview on two sepa-rate occasions.What I found was that a number of factors seemed to influence the children?s thoughts and answers, and that their answers were most likely not always a mirror of their thoughts.

This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. The second method, Decision Directed Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data for estimation. Simulations show that DDCE, in comparison to OFCE, does not attain an improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER).

The thesis deals with evaluation of tenders for communal construction procurement. Each year the public procurement equals the value of millions of Swedish kronors, of which construction projects makes up a large proportion. These projects tend to often exceed their budgets. The aim with the thesis is to investigate if there are faults in the tender evaluation process. The theoretical framework for the study partly consists of a review on how the communal evaluation work is described in law and practice.

???This research traces the trajectory of those methods of teaching grammar that five different teachers in Swedish from Stockholm municipality use in their practice. ?Their both constructive and negative attitudes towards grammar were in fokus when looking after the connection between their own experience of learning/teaching native language grammar and the methods that they are actually using in their own classes. I was trying to gain knowledge and achieve the purpose of this research by means of a qualitativ method.

Practice of mathematical proof increase the understanding of mathematics anddevelop creativity skills, problem solving, communication, logical thinking andreasoning which are all important tools not only within the subject of mathematicsbut also important tools for the society in which we are living. The aim of this projectwas to investigate whether it is accurate that proof and proving has a subordinate rolein mathematic education in the upper secondary school in Sweden. This was done byconstructing of a digital survey that was sent to approximately 100 practicingmathematics teachers in a normal size city located in the middle of Sweden. Theresults of the survey show that the teachers consider themselves comfortable withtheir own skills in teaching proof. Paradoxically, the results also show that there is alack of teaching of proof and proving in the upper secondary school, although the newcurriculum puts more focus on proof and proving..

Syftet med denna studie är att ge en insikt i hur elever med kombinerade läs- och skriv och matematiksvårigheter tänker och resonerar vid problemlösning.Tre elever i år 8, som alla ingår i samma specialundervisningsgrupp i matematik, har arbetat med olika typer av matematisk problemlösning, såväl individuellt som i grupp. Med utgångspunkt i deras arbete skapas början till en grundad teori.I forskningssammanhang behandlas ofta denna kategori elever (med kombinerade problem) som en enhetlig kategori som jämförs med t ex elever med enbart matematiksvårigheter, normalpresterande elever osv. Denna undersökning visar dock att de svårigheter eleverna uppvisar är av mycket olika karaktär.Studien omfattar tre delar: en presentation av fältstudien och resultaten från denna, en metoddel innefattande en pilotstudie som koncentreras på datainsamlingsmetoden samt en omfattande litteraturstudie som behandlar problemlösning och inlärningssvårigheter..

I detta arbete har en undersökning genomförts angående hur spårbarhet upprätthålls vid användning av användarfall. Rapporten behandlar spårbarhet och användarfall separat för att belysa viktiga fakta inom båda områdena. Syftet med arbetet var att ta reda på hur olika tillvägagångssätt för att representera användarfall upprätthöll spårbarhet mellan olika krav, och mellan krav och dess ursprung. Informationen inom problemområdet samlades in genom en litteraturstudie. I undersökningen identifierades flera olika typer av spårbarhet, vilka sedan låg till underlag för identifiering av spårbarhet i användarfall.

During the financial crisis voices were raised towards the regulatory framework IAS 39 recognition and measurement of financial instruments and pointed out that it was inadequate. The complexity of the framework contributed to the fact that it was difficult to apply. IASB accelerated the modeling of the new to be regulatory framework IFRS 9. In this study we will focus on the reliability of accounting information, which is an important aspect from the stakeholder?s point of view, for example, to be able to make the best decisions the accounting information should be proper.

Estimation of the variation in the integrated hydraulic conductivity around the Tunåsen infiltration facility - An investigation of the effects of uncertainties in existing informationAlmost half of Sweden?s drinking water volume is produced from groundwater. The main fraction of this is extracted from eskers, some of which allow for very large extraction rates. Despite this, the groundwater volume is not sufficient in some areas. This has led to an extensive use of artificial recharge.In Uppsala, the total volume added through artificial recharge is divided between four infiltration facilities.

This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. The second method, Decision Directed Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data for estimation. Simulations show that DDCE, in comparison to OFCE, does not attain an improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER).

2013 a decision was made that all projects at the Swedish Transport Administration shoulduse BIM (Building Information Modeling) to some extent from 2015. BIM is an approachthat allows for streamlining of projects by the use of a 3D-model created in an early stage ofthe project. The 3D-model can carry information about the facility throughout its life cyclefrom planning to management. The use of a 3D-model can help the project to detect errors inearly stages of the project when it is easy and cheap to fix the error instead of finding theerror in the construction phase when it is costly and time consuming to fix it. 3D-models alsolead to improved communication both within the project groups and with the public.

The purpose of this study was to find out what the educators view on the working method Matte på burk in preschool looked like. I also wanted to find out what the educators thought about the working method. My questions are:How does the educators in preschool experience the method Matte på burk?What do the educators in preschool believe that Matte på burk can give the children?The study was carried out through a qualitative interview study with six educators. During the interviews with the educators it became apparent that the method not only focused on mathematical exercises.