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629 Uppsatser om Voltage measuring - Sida 25 av 42
Framtagande av OEE-mall
At Volvo Cars Torslanda's paint shop there is a requirement to in a fast and effective way get an overview of the plants capacity. Therefore a capacity template was constructed as a tool for the engineers at Volvo several years ago. This template has during the years become complicated and outdated. Thus this thesis work will resort as a new capacity template, built from scratch. The new template has been built up based on requirements from Volvo and the concept of OEE (Overall Equipment Effectiveness).
Maktavstånd och kommunikation - en studie av upplevda och verkliga kulturella skillnader och deras följder
Hofstede constructed a culture dimension called Power Distance, measuring the inequality of Power. Germany and Sweden have relatively similar values according to his world-renowned research. But a series of interviews of Swedish entrepreneurs in Germany shows that these perceive a large difference in inequality of power in the two countries. This essay seeks to explain the difference between these subjective-qualitative experiences and the objective-quantitative data of Hofstedes Power Distance Index. We propose that a combination of differences in communication, exercise and visibility of power and formality influence the way Power Distance is perceived.
Energiåtervinning från gjuteriprocess till fastighet, undersökning för ökat utnyttjande av spillvärme
This diploma work on D-level is made in cooperation with Varnäsföretagen AB in Eskilstuna. The company performs contract manufactured aluminium goods. This work is a continuation on earlier diploma work in Varnäsföretagen AB. Even if the industry process consumes much energy for melting the aluminium goods, they consume a great amount of oil to warm up the building. The purpose of this work is to examine some places in the building and the process to see how much energy it is possible to recycles to the heating system and reduce the costs for heating.
RCC-Jordfelsskydd, mätmodul för övertonsanalys
The majority of all power cuts that affects individuals and communities are caused by earth faults on the power transmission lines at 10kV and 20kV level [1]. If these power cuts could be eliminated, less disturbances and interrupts would lead to large amounts of money savings.Swedish Neutral has developed such a protection system. When an earth fault occurs power is injected into the neutral point of the transformer. The RCC (Residual Current Compensation) protection calculates a compensation current exactly 180 degrees out of phase to the fault current. Doing this, the voltage at the fault location becomes very close to zero, without affecting the power transmission.The protection system can only compensate automatically for the fundamental frequency (50Hz), and manually for the 3rd, 5th, 7th and 9th harmonics.
Emotionsreglering och stämningsläge som faktorer för högt och lågt risktagande i beslutsprocessen
The purpose of this thesis is to investigate the ways in which emotion regulation and mood affects risk taking when it comes to decision making competence. Emotion regulation is an essential part of the attachment process, the development of an autonomous self and functional stress coping systems. Research indicates that there is a relation between a distorted emotion regulation and some psychological disorders like depression, PTSD, anxiety disorders and borderline (or instable emotional personality disorder). There is a definite need to analyze the relation between emotion regulation and decision making competence since it is relatively unexplored. A digital questionnaire was distributed amongst the participants.
Effekten av neutrala påståenden på social önskvärdhet i självskattningsformulär
This study investigated the effect different contexts have on personality items when they are framed more neutrally. The study was based on a five-factor personality inventory originating from International Personality Item Pool. The inventory consisted of 50 original and 50 neutral personality items and in addition 28 items measuring social desirability. The sample consisted of 150 students from the Department of Psychology, Lund. The students were divided into three instruction groups differing in context.
UAS-noggrannhet i praktiken : En undersökning av dagens UAS-fotogrammetris noggrannhet
SammanfattningUndersökningens syfte är att förstå hur noggrann UAS-fotogrammetrin i dagsläget (2013) är. Frågeställningarna som undersökningen utgick ifrån var: kan UAS-fotogrammetri i dagsläget ge precisa punkter med hjälp av att mäta in centrum av 1x1 meter utlagda plattor som kan ses i ortofoto?; Kan det ge snarlik noggrannhet med pixelstorleken? samt Kan UAS-tekniken idag användas för att producera pålitliga höjdmodeller?För att uppnå syftet har en undersökning utförts med jämförelse på koordinater insamlade med totalstation och insamlade med UAS-fotogrammetriska metoder. Resultatet visade att medelfelet var drygt 1 pixel på plana koordinater samt på koordinater i höjd. Pixlarnas storlek var mellan 4.7-9.3 cm. Största felkällan ser ut att vara upplösningen på bilderna, men tekniken utvecklas fort.
Elektronisk motorstyrning för ottomotorer
The combustion engines in today?s vehicles are getting more and more advanced and there are increasing demands on that the engines should operate during optimal conditions. Examples of internal combustion engine parameters which may be carefully controlled are the rate between fuel and air, that this gas mixture is homogenous enough and that it is ignited at the correct moment. Moreover, the requirements of these parameters vary depending on, among other, engine speed and load. To meet these requirements in all occurring operation conditions, it is required that many subsystems work together.
Att mäta organisationsförändring : En studie om att mäta formella och informella element vid en organisationsförändring i offentlig sektor
Syftet med uppsatsen är att ta reda på hur en organisationsförändring kan mätas med avseende på formella och informella element samt att presentera hur mätprocessen kan genomföras. Studien bygger på intervjuer och dokumenterade utvärderingar. Studien visar att de formella elementen mäts genom att kontrollera att målen som satts upp inför förändringen är uppfyllda. De informella elementen mäts genom medarbetarundersökningar dock utan någon koppling till förändringen som har genomförts. När de informella elementen mäts i en förändringsprocess görs detta genom så kallade attitydmätningar.
Affektmedvetenhet och stress : En sambandsstudie utifrån en integrerad stressmodell med affektsystemet som brygga mellan psyke och soma
A unified model of stress and affect consciousness was proposed. The connection between affect consciousness and perceived stress was studied. Teachers (n = 19) were interviewed using Monsens affect interview, followed one month later by a questionnaire containing Perceived Stress Scale (PSS), State-Trait Anxiety Inventory (STAI-S, STAI-T) and Twenty Item Toronto Alexithymia Scale (TAS-20).Statistical analysis showed no connections between level of total affect consciousness and perceived stress. Though there were some indications of a negative relationship between affect consciousness and trait anxiety. There were also indications, using a complementary analysis, of a connection between level of affect consciousness on the subscale distress in the interview and perceived stress.
Emotionsreglering och stämningsläge som faktorer för högt och lågt risktagande i beslutsprocessen
The purpose of this thesis is to investigate the ways in which emotion
regulation and mood affects risk taking when it comes to decision making
competence. Emotion regulation is an essential part of the attachment process,
the development of an autonomous self and functional stress coping systems.
Research indicates that there is a relation between a distorted emotion
regulation and some psychological disorders like depression, PTSD, anxiety
disorders and borderline (or instable emotional personality disorder). There is
a definite need to analyze the relation between emotion regulation and decision
making competence since it is relatively unexplored. A digital questionnaire
was distributed amongst the participants.
Distriktssköterskors, sjuksköterskors och chefers upplevelse av att arbeta med fallprevention inom äldrevården
AbstractPurpose: The purpose of this study was to see if there was any correlation between BMI and chronic pain among participants who underwent a behavioural medicine rehabilitation program at a pain clinic in the central part of Sweden. Method: The study was conducted as a quantitative descriptive study context and has used medical records with documented data from the participants who were part of a pain clinic rehabilitation programs in the years 2004-2005. Altogether there were 76 participants in these years and excluded was nine participants with BMI measurements were not included in the documentation. Main Results: Regarding the relationship between BMI and chronic pain there was no significant relationships. Participants who completed the behavioural medicine rehabilitation program, however, showed a lower value of BMI and the estimated pain in VAS from the first to the third which is the last time of measuring.
Klimatkabinett : Komponenter och konstruktion
This report describes the construction of a climate-cabinet for testing of HV-cards (High Voltage) produced at VG Scienta. The main part of the report describes all the different components of the cabinet. The most important parts are a PID regulator from Eurotherm model 2408, a solid state contactor (SSC), a thermocouple, a finned resistor from DBK and different fans. The report even includes the connection between components by cable wiring, isolation, grounding, fuses and shaping of metal goods.As the cabinet also communicates with a computer, the report includes the solution of the data communication using the software iTools from Eurotherm. The communication part includes information about a converter that converts EIA422 to USB.The cabinet was produced at a company, called VG Scienta, in Uppsala during the spring 2010.
Utveckling av väggenomföringar av typen RIP
Examensarbetet har genomförts på ABB Components i Ludvika. ABB Components är en affärsenhet inom ABB-koncernen som tillverkar nyckelkomponenter till transformatorer, bland annat genomföringar som kan ses som en isolerande hylsa vars uppgift är att föra högspänd ström genom jordade plan.Examensarbetets syfte är att utföra en förstudie som sedan ska fungera som underlag för ABB Components utvecklingsarbete vad gäller genomföringar av typen RIP (Resin Impregnated Paper). Bakgrunden till förstudien är ökade miljökrav världen över vilket innebär en marknad där miljöfrågor får allt större inverkan. Följden av marknadens utveckling är att ABB Components har insett att de har ett glapp i produktportföljen vad gäller genomföringar av typen RIP.För att skapa det underlag som är nödvändigt för att nå målet med förstudien har metoder som intervjuer, observationer och sökningar i databaser tillämpats. Målet med förstudien har sedan uppnåtts genom att generera lösningskoncept i form av CAD-modeller.
Samband mellan bmi och långvarig smärta hos patienter som genomgått ett beteendemedicinskt rehabiliteringsprogram : en beskrivande studie
AbstractPurpose: The purpose of this study was to see if there was any correlation between BMI and chronic pain among participants who underwent a behavioural medicine rehabilitation program at a pain clinic in the central part of Sweden. Method: The study was conducted as a quantitative descriptive study context and has used medical records with documented data from the participants who were part of a pain clinic rehabilitation programs in the years 2004-2005. Altogether there were 76 participants in these years and excluded was nine participants with BMI measurements were not included in the documentation. Main Results: Regarding the relationship between BMI and chronic pain there was no significant relationships. Participants who completed the behavioural medicine rehabilitation program, however, showed a lower value of BMI and the estimated pain in VAS from the first to the third which is the last time of measuring.