Active headsets have been on the market for years and now it is time for something else to enter the stage. The technology of active noise reduction can for exmple also be used in ventilation systems for reducing ventilation noise. An active control system principally consists of four important components, namely the downstream error microphone, the upstream detection or reference microphone, the digital signal processor (DSP) and a loudspeaker. The upstream reference microphone listen to the primary ventilation noise and sends it to the DSP which makes a phase shift to the signal and sends it to the loudspeaker. The loudspeaker sends out the opposite waveform of the incoming one and reduce the primary ventilation noise.

Each municipality in Sweden have to offer all children a place in a pre-school class starting the autumn term of the year the child turns six until it starts compulsory school. Despite the fact that it is a non-compulsory education, 95 % of all six-year-olds attend pre-school class.The purpose of this study has been to explore how pre-school and compulsory schools organize the pre-school children?s transition to pre-school. It also aims at examining how teachers? co-operate in order to fulfill the commission of the national curriculum and how they make a smooth transition to the new school for the children.Research questions: In what way do teachers in pre-school and compulsory school co-operate in in order to make the children?s transition easy? What part of the process and which operators are most important for the children in the transition? To what extent does the school organization fulfill the commission of the national curriculum regarding co-operation between pre-school and compulsory school?To answer these questions I have used a qualitative method where I have made seven interviews as well as a text analysis of annual reports from the studied schools.

Report of diploma work conducted at the Swedish Radiation Safety Authority (SSM) as part of the bachelors program in Nuclear Engineering at Uppsala University.All nuclear power plants in Sweden are obliged to report any deficiency in their barriers or the defense in depth in obedience to SSM?s regulations concerning safety in nuclear facilities. In addition, there is an international system for reporting such events. The purpose of this thesis is to study the Swedish report system and to analyze the differences between Swedish and international event reporting.In the Swedish system, SSM?s regulations are effectuated by means of event reports classified as category 1-3, designed individually at each Swedish facility.

Mer än hälften av alla barn som ska opereras upplever oro och ångest. Det kan leda till att anestesiinduktionen försvåras och även orsaka postoperativa besvär som till exempel ökad smärta, apati, ätstörningar och sömnproblem. Den familjefokuserade omvårdnaden förespråkar att föräldrar bör ges möjlighet att närvara med sitt barn under perioperativa perioden, så lång det är möjligt. Anestesisjuksköterskans roll perioperativt är att utifrån dialogen med barnet och föräldrarna skapa förtroende, minska oro och öka barnets möjlighet att känna kontroll under den perioperativa perioden. Syftet med denna systematiska litteraturöversikt var att beskriva föräldranärvarons effekt på barns oro i samband med operation.

This report is a degree project performed at Freudenberg Household Products AB, (FHP). The degree project comprises measurement and analysis of the power net at FHP Basproduction. The content is divided between one theory-part, one document- part with measurements and also conclusions and a list of measures to be taken. During the project the purpose and restriction change from a quality investigation to only concentrate on harmonics and finding the reason why they exist, and also to find a solution to the problem with harmonics. The measurements shows that the power net contains harmonics of different order and intensity.

There is a lot of research made on second language (L2) learning (Jesney, 2004). However the relationship between foreign accent, intelligibility and acoustics within pronunciation tutoring is quite an unresearched area (Thorén, 2008). The aim of the study was to analyze how a course in Swedish pronunciation affected foreign accent, intelligibility and acoustics among L2-learners of Swedish. A total of 41 people participated in the study: 16 L2-learners, 4 native Swedish speakers consisting a control group and 21 perceptual assessors with Swedish as native language. The L2-learners foreign accent and intelligibility were rated by the listeners before and after a course in Swedish pronunciation on an eight-point Likert-scale.

För att klara krav på besparingar och effektivisering inom hälso- och sjukvård har dagkirurgi som behandlingsform ökat men även som ett led av ny forskning och utveckling av kirurgiska behandlingsmetoder. Patientens behov av kunskap för att kunna klara egenvården efter ingreppet blir större då vårdtiden är kortare vid dagkirurgi. Den valda metoden är litteraturstudie och syftet var att undersöka hur patienterna uppfattade information vid dagkirurgi. Elva vetenskapliga artiklar är granskade och bearbetade och därigenom har ett resultat framkommit. Informationen har störst genomslagskraft när muntlig och skriftlig alternativt visuell information kombineras.

Syftet med studien var att beskriva vilket stöd gastric bypass-opererade upplever att de behöver före och efter sin operation. Studien hade en beskrivande design och sjutton gastric bypass-opererade svenskar deltog. Data insamlades genom semistrukturerade frågeformulär via mail och materialet analyserades genom kvalitativ innehållsanalys. Resultatet redovisas i tre kategorier och ett tema. Kategorin Känna sig utelämnad beskriver hur deltagarna upplevde ett bristande stöd från sjukvården inför sin operation.

During the development of microwave based sensors such as radar target seekers, input signals are needed to verify the performance of the system. Therefore, a channel board has been developed by previous thesis projects at Saab Bofors Dynamics. It uses a technique called Digital Radio Frequency Memory (DRFM). The purpose of this board is to sample and digitally store radio frequency signals in order to reconstruct them after a certain delay.The aim of this thesis project was to use the channel board named above to construct a portable instrument for generation of stimuli signals. This assignment has been divided into two tasks: firstly, to construct and put together the hardware components and secondly, to implement a graphical user interface for the instrument.

John A. Warden III is one the most mentioned air power theoretic of his time.He has written a number of theories concerning air power and the best way to use this to win wars.The author of this paper gives a short resume of what he consider are the central thoughts in John Warden´s theories. These thoughts result in four factors; Enemy as a system, centre of gravity, parallel attack/concentration and finally air superiority. These factors are then being used to inves-tigate if NATO used Wardens theories during the Kosovo war in 1999.The reason for the author to choose the Kosovo war specifically is due to the fact that NATO during the war only used air power as an instrument to get Serbia´s president Milosevic to the negotiation table but also the fact that this would turn out to be quite a challenge for NATO.The conclusion is that out of the four factors only one is traceable throughout the entire operation, and that is air superiority. Regarding the other three factors they can only be found in parts of the operation..

Kolik är ett vanligt sjukdomskomplex hos hästar som i vissa fall kan kräva kirurgisk behandling. Kirurgisk behandling är dyrt och komplicerat varför många studier har gjorts för att försöka förklara vad som påverkar prognosen efter buköppning. Resultaten i de olika studierna skiljer sig åt i många fall, vilket gör det intressant att undersöka hur prognosen ser ut för de hästar som genomgår kirurgisk behandling av kolik vid Universitetsdjursjukhuset (UDS) i Uppsala. Syftet med studien var att undersöka och beskriva prognosen för hästar som genomgått bukkirurgi på UDS samt att undersöka hästägarnas inställning till buköppning. Studien är en retrospektiv studie kombinerat med en telefonintervju med ägarna till inkluderade hästar. Av de hästar som togs till operation överlevde 60.2 % så att de skickades hem, överlevnad fram till hemgång räknat på de hästar som överlevde operation och uppvak var 81.5 %.

Active headsets have been on the market for years and now it is time for something else to enter the stage. The technology of active noise reduction can for exmple also be used in ventilation systems for reducing ventilation noise. An active control system principally consists of four important components, namely the downstream error microphone, the upstream detection or reference microphone, the digital signal processor (DSP) and a loudspeaker. The upstream reference microphone listen to the primary ventilation noise and sends it to the DSP which makes a phase shift to the signal and sends it to the loudspeaker. The loudspeaker sends out the opposite waveform of the incoming one and reduce the primary ventilation noise.

Dagens samtida konflikter skiljer sig ganska markant ifrån den typ av krigsföring som vi är vana att se den, exempelvis under andra världskriget där reguljära förband stred mot varandra med de allierade på ena sidan fronten och axelmakterna på den andra. I dagens konflikter är nyttjandet av irreguljära förband vanligt förekommande vilket har lett till att reguljära förband måste strida på helt andra villkor och omständigheter än förut.Under Vietnamkriget startades Operation Fenix i syfte att bemöta denna nya typ av krigsföring och de metoder som användes av den amerikanska underrättelsetjänsten var något som inte hade prövats tidigare. Tyvärr gav dessa metoder inte det underrättelsevärde som det var tänkt till en början men frågan står fortfarande kvar hur dessa metoder påverkade VCIs (Viet Cong Infrastructure)  krigföringsförmåga.Syftet med denna uppsats är att i en fallstudie granska om de metoder som Operation Fenix använde under Vietnamkriget var effektiva gentemot irreguljära styrkor samt om det finns något stöd gentemot dessa metoder i militärteorin.I uppsatsen används en teoriprövande fallstudie där David Galulas teorier implementeras i ett analysverktyg skapat utav de tre pelarna i krigföringsförmågor där varje faktor analyseras och slutligen sammanfogas till resultat till den givna frågeställningen.Denna uppsats visar på att de effekter Operation Fenix hade på de irreguljära moståndarna har ett visst samband med de teorier David Galula skapat gällande Counterinsurgency Warfare..

The project was performed at SiemensIndustry Drive Technologies with theobjective to provide actual values forthe energy savings potential withinSiemens scope of practice.In Sweden the electrical drives standfor about 30 % of the total electricityconsumption and about 60 % of theelectricity consumption within theindustry. During the pre-study phaseelectrical drives with pump applicationswere identified as large energy users.Because of this a case study at one ofSiemens customers, Stora Enso Fors wasperformed. The system that was evaluatedduring the case study was a throttledsystem with a centrifugal pump forpumping pulp.The results yielded that a saving ofover 50 % could be achieved by replacingthe throttle valve with a variable speeddrive, a frequency converter. Thepayback period was two years and twomonths and the present value for thetotal life cycle cost of the variablespeed system was 662.566 SEK lower thanfor the throttled system. As aconsequence, Stora Enso Fors is advisedto invest in a frequency converter forregulation of the system.The general conclusion is that a focuson system efficiency is the mostimportant factor in energy efficiencyprojects and that the system regulationmethod has a large impact on the overallsystem losses and hence its efficiency.Energy efficiency potential forthrottled systems with centrifugal pumpsis large and significant economicalsavings can be made through investmentswith short payback time..

The purpose of this study is to find out how teachers in preschool interact with children.By unstructured observations of teachers in preschool I intend to find out how they interact with children. Is it possible to see that the operation is built on guided interaction speciality?Positive interaction between adults and children is of importance to a good childhood and a child?s learning. I have asked myself how teachers interact with children in preschool. There are different ways of interaction.