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771 Uppsatser om Unit lock - Sida 26 av 52

Svärmen kring pekskärmen : En kvalitativ studie om surfplattan på förskolan

Denna studie har haft som syfte att synliggöra i vilka situationer förskolepedagoger och barn på en förskolas småbarnsavdelning använder sig av surfplattor. Faktorer som undersökts har varit vilka kontexter som utgör dessa situationer, vilka beståndsdelar dessa kontexter består av samt vilka motiv och aktiviteter som ligger till grund för användning av surfplattor. Studien har varit av kvalitativ karaktär och har undersökt en småbarnsavdelning med barn upp till tre år på en förskola i Stockholm. För att åstadkomma detta har semi-deltagande observationer skett på förskolan under fyra dagar. Den insamlade datan har ställts mot och analyserats efter Nardi, Dourish och Benyons teorier om kontext samt Blomberg, Burrell & Guests teori om etnografi.

Energikartläggning av polishuset i Gävle : Åtgärdsförslag för ett minskat energibehov i fastigheten Gävle Söder 17:10

The objective of this work was to introduce measures to reduce energy and water demand at Gävle Söder 17:10. To succeed, this energy audit has been made. The work is based on collected statistics from the property owner Norrporten, measurements, literature review and through consultation with experts in the field. Two models, one for each building, have been created in the simulation program BV2 to estimate the potential of energy measures based on the collected information. The models in BV2 have been verified against the statistics of the energy consumption.With the help of calculations and simulations, seven cost-effective measures have been identified.

Transientanalys för Forsmark block 2 och 3 : Studie av hur val av driftpunkt och pumpreglering påverkar torrkokningsgränsvärdet

The dry out criterion (MCPR) has been calculated for the most limiting H2-events for Forsmarks unit 2 and 3, at operating points that are normally not analyzed before each cycle. The operating points that normally are regarded as the ones with the lowest margin to dry out are the ones where the thermal power is the highest at agiven recirculation flow. This report shows that this is not the case for Forsmark 3. MCPR-values at partial power operating points are higher for the limiting case inside rather than on the boundary of the region of operation. It is therefore recommended that the method for determining the dry out criterion for Forsmark 3 is revised to account for this effect.

Nätdroger - Utmaningar för myndigheter, enskilt och inom ramen för samverkan

The aim of this study was to examine how the new established phenomenon of ?Internet drugs? causes challenges to organizations, both individually and in relation to collaboration. The study is based on qualitative semi-structured interviews with representatives from three organizations - one youth police unit, one medical addiction centre and four units working within social services. The theoretical approach that was used is theory about human service organizations, theory about collaboration and new institutional organizational theory. A conclusion is that the current drug classification is problematic and mainly challenging for the organizations that focus on prevention work and early interventions.

Produkthantering vid tillverkning av roterande verktyg

AB Sandvik Cormorant?s production unit in Gimo has identified a need to examinethe handling of products between operations with the purpose of generatingproposals of improvement for the product handling.The aim of this project is to study the existing manufacturing process and givesuggestions for improvement. The proposals should reduce the manual handling ofproducts, decrease the risk of damaging the products during the manufacturing andform a basis for increased traceability. Based on a mapping of the manufacturingprocess and the problem description, a specification of requirements has beencomposed.The mapping of the manufacturing process suggests that a change of the currentsystem is required. The company is recommended to decide how the producthandling between operations should be performed as guidelines for the productionteam.

Saltsjöqvarn : Utbyggnad av staden, ombyggnad av industrin

I denna rapport behandlas verktyget FMEA (Failure Mode Effect Analysis), dess användning och genomförande på identifierade komponenter som ingår i elmotorer tillverkade hos ABB LV Motors i Västerås. Målet med detta arbete har varit att ge lärdom om metoden FMEA på företaget för att möjliggöra användandet av verktyget bland medlemmarna på företaget och att vi implementerar verktyget på befintlig motor för att analysera de felsätt som kan uppstå. Eftersom ABB just nu har ett pågående projekt med en ny motor kan våra slutgiltiga felanalyser även ge dem information om vilka ändringar och åtgärder som kan vara till nytta vid utformningen av den nya motorn.Efter två veckors praktik i verkstan och en grundlig genomgång av företagets reklamationer kunde vi avgränsa arbetet genom att identifiera de komponenter som analyserna skulle genomföras på. Efter en genomgång tillsammans med våra handledare på företaget kom vi fram till att utföra våra analyser på fem komponenter, två av dem framstod som mycket kritiska som upptäcktes redan vid genomgång av reklamationerna.Komponenterna som vi har analyserat är:1. Lager2.

Offentlighet och sekretess i upphandlingar enligt LOU

The purpose of this study is to investigate how teachers work with Autism pupils in two different schoolforms: a traditional elementary school and a language school. The study was based on three questions: 1. How do teachers in elementary school prepare, plan and implement reading and writing instruction to Autism pupils? 2. How do teachers in the language unit prepare, plan and implement their reading and writing instruction to Autism pupils? 3.

Karakterisering av bioslam för modellering av biogasproduktion

The report aims to investigate how well a certain type of affordable embedded single board computer can hold up against today's more expensive computers in a computer system by doing various tests on a system with the specified requirements. The system has a Raspberry Pi as the single board computer which task is to control a camera based on coordinates obtained from a server as well as capture and stream a video signal on a network.The researches were conducted to check how much network traffic a single-chip computer sent in different video formats and how much CPU utilization was required. Studies were also made to ensure the accuracy of the camera control. The researches have been experimental, where several tests have been performed and analyzed.The results show that a sufficiently good accuracy can be obtained from the camera steering unit, in which two different servos have been investigated. When the video format MJPEG and H.264 are used, the single-chip computer is able to transmit a video signal up to 1280x720 at 15 fps.

Reverse engineering : En processkartläggning på reverse engineering

Alstom Power Sweden AB in Norrköping isexpanding their business in the presentsituation and has implemented aprocedure for reverse engineering as apart of this work. Reverse engineeringat Alstom is an extensive procedurethat is calculated to be performedunder very time demanding conditions.This thesis is a continued exertion ofthe implementation process in order toidentify and describe the mostimportant process steps in purpose to beable to manage and improve theprocess.This thesis was written with twoprimary objectives. The first was todescribe and map out the procedure torecreate technical data of a turbineblade, based on a validation of thereverse engineering process that hasbeen performed at Alstom in Norrköping.The second purpose was to describe thekey factors to achieve successful usageof reverse engineering that have beennoticed in the literature study.The work is based on a literature studyon the subject reverse engineeringwhich produced the theoreticalknowledge of the method to reproducetechnical data to a product. Theliterature study has also led to adescription of reverse engineering froma legal perspective to clarify how farit is allowed to apply the methodaccording to the patent laws. With theliterature study as support and furtherhelp and guidance from individualswithin the reverse engineering unit atAlstom, a complete picture andunderstanding of the process has beenproduced and documented..

Hörselnedsättning hos för tidigt födda barn ? En litteraturstudie

A stay in the neonatal intensive care unit of greater than 5 days is one of the identified risks ofa sensorineural hearing loss. Preterm infants usually have at least one risk factor for hearingimpairment. The period from 25 weeks' gestation to 5 to 6 months of age is most critical tothe development of the auditory system. We think it is important to investigate hearingimpariment among infants born preterm, degree and type of hearing loss, risk factorsassociated with hearing loss and how the auditory system may be affected by preterm birth.ObjectiveA critical review of the current literature including studies of preterm infants born betweengestonal age 25-37. Our aim is to identify the most common type and degree of hearing lossamong infants born preterm and if there is an association between hearing loss and pretermbirth.MethodA literature search of Scopus and Pubmed resulted in 16 articles from 2000-2015ResultsMost of the infants in this study had a severe to profound sensorineural hearing loss.

Examensarbete : Implementering av

I denna rapport behandlas verktyget FMEA (Failure Mode Effect Analysis), dess användning och genomförande på identifierade komponenter som ingår i elmotorer tillverkade hos ABB LV Motors i Västerås. Målet med detta arbete har varit att ge lärdom om metoden FMEA på företaget för att möjliggöra användandet av verktyget bland medlemmarna på företaget och att vi implementerar verktyget på befintlig motor för att analysera de felsätt som kan uppstå. Eftersom ABB just nu har ett pågående projekt med en ny motor kan våra slutgiltiga felanalyser även ge dem information om vilka ändringar och åtgärder som kan vara till nytta vid utformningen av den nya motorn.Efter två veckors praktik i verkstan och en grundlig genomgång av företagets reklamationer kunde vi avgränsa arbetet genom att identifiera de komponenter som analyserna skulle genomföras på. Efter en genomgång tillsammans med våra handledare på företaget kom vi fram till att utföra våra analyser på fem komponenter, två av dem framstod som mycket kritiska som upptäcktes redan vid genomgång av reklamationerna.Komponenterna som vi har analyserat är:1. Lager2.

Potentiell fosforfrigörelse från sedimentet i Bornsjön, sydvästra Stockholm : The potential leakage of phosphorus from sediment in Lake Bornsjön, south western Stockholm

Lake Bornsjön is situated 30 km southwest of Stockholm in a rift valley lake and consist three basins outstretched in northwest-southeast direction. The surface area is 6,7 km2 with a maximum depth of 18,3 meters, a mean depth of 9,8 meters and a retention time of the water of 6,5 years. The drainage area is 42 km2 and consists mainly of arable land (ca 1000 ha) and productive forestry land (2500 ha), but in the drainage area there are also restored and fairly newly constructed wetlands.Today the Stockholm area receives its drinking water from Lake Mälaren, but if there would be any pollution of this source, Lake Bornsjön would act as the water source. The area surrounding the lake was bought already in 1899 by Stockholm Stad for protection of the lake and was taken over 1993 by Stockholm Vatten AB. It has been a water protection area from 1988 and it was also accepted as a nature reserve in 1995.

Prestation vid sönderdelning av GROT med olika typer av maskiner

There is a need for productivities data and data for different types of machines for comminution of logging residues. The lack of data and studies on GROT comminution makes it difficult to evaluate different chains for handling of residue fuels and make system analyses.Four types of machines with three different working principles were compared at six studies during winter conditions. Three to eleven trials during 9.5 to 30.7 minutes were made on each machine. Samples from the produced material at each study were sieved to determine the size distribution of the comminuted material. Samples were also taken from the studies for determination of moisture content.

Värdet av hållbarhetsmärkningar på prydnadsväxter i dagligvaruhandeln

Enligt Daraghmeh & Johansson (2013) och Abrahamsson (2014) så står den svenska prydnadsväxtproduktionen inför vissa utmaningar. Produktionen av prydnadsväxter i Sverige sjunker och antalet företag likaså (Daraghmeh & Johansson 2013 s. 7-13). Dessutom menar dagligvaruhandeln och grossisterna att de svenska producenterna får allt svårare att konkurrera med utländska, och då främst holländska, prydnadsväxtproducenter vad gäller lock- och bulkvaror (Abrahamsson & Tjärnemo 2014 s. 17). Men inom ett område kan de svenska producenterna ha ett försprång.

Frequency of unsuccessful milkings in automatic milking rotary : effect on milk yield, lactose content and somatic cell count at udder quarter level

Developments in milk production are heading towards fewer but larger herds where the milking process is often fully automated. Automatic milking systems were launched in the 1990?s and in the year 2010 the Automatic Milking Rotary (AMR) was introduced. As a rule there are no supervision personnel present during the milking event in systems with automatic milking. This means that there is a risk that cows can be incompletely milked in one or more udder quarters, for example if the robots fail in attaching the milking cups or if the cow kicks off the milking unit.

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