
Sökresultat:
1061 Uppsatser om Electrical engineering - Sida 42 av 71
Co-opetition - Rollkonflikter i gränsöverskridande arbetskontexter
This thesis revolves around co-opetition and boundary spanning activities with IETF (Internet Engineering Task Force) as research case. The main objective is to through qualitative interviews and a passive observation of email conversations explore how the participants of IETF experience and is affected by a double membership where they sometimes are cooperating with their competitors. Theories states that boundary spanning activities can create role conflicts for these participants when different role-senders, IETF and the employer, send incompatible expectations. We also believe that this can have a negative impact on discussions and the standard development process, which is why we are conducting the passive observations mentioned above.The result shows that the environment of co-opetition is a contributing factor to role-conflicts. These conflicts appear when participants are forced to choose between the role as an employee and the role as an IETF participant.
Vändbord : Lokal Logistik
This thesis has been carried out within the bachelor program for mechanical engineering at Karlstad University in collaboration with BAE Systems in Karlskoga. The purpose with this work was to design a mechanism and associated parts for loading and unloading of shots between primary and secondary magazine in BAE's new 40mm's ship gun.Parts designed or redesigned among other things a transfer mechanism for shot at loading and unloading, well as a hatch mechanism which makes the shots do not fall out of the primary magazine when making separate use. Various important details have been designed to maintain a good functionality of the mechanism.The construction work has mainly been carried out in the CAD software Solid Edge and its associated FEM module. The construction work has also been carried out on rough calculations for constructed details in order to ensure that they meet the stringent requirements of military use in tough marine environment. Two of the most critical parts of the structure where analyzed with the FEM module for estimating the stresses in the material at the applied load.The final design, which is a result of the thesis, meets the requirement specification and the set targets.
Tuftade ljudabsorbenter ? väggpaneler för rumsliga och akustiska egenskaper
It is a well-known fact that textiles and carpets have benign sound-absorbing properties. It is desirable to have quantified values of these properties ? especially for architects and interior designers. They often need to be able to giveaccount for the acoustic properties of their designs at a relatively early stage and sometimes have strict acoustic classifications imposed upon them by their contractor. A product with documented acoustic properties would aid when prescribing interior elements.The purpose of this thesis is to develop a wall-mounted panel in hand-tufted material ? aesthetically pleasing and versatile but also having documented and quantified acoustic properties.
Urban Vindkraft : ett nytt element i bebyggd miljö?
This paper aims to explore the phenomenon urban wind energy, its visual effect on built environment and the factors that affect the opinion towards new elements in the city. A place study of the city Gävle serves as a complement to the theoretical part of the paper. The theoretical discussion opens with an account for the technical and economical conditions of urban wind energy. It presents the technical basics, different types of turbines and a discussion occurring wind related techniques in built environment. Today, the knowledge of how the wind moves and acts in the rural landscape is quite good.
Automatisk Identifiering av Inandningspauser i Spontant Tal - ett HMM/ANN-hybridsystem i Matlab
This thesis presents a system which has been implemented to satisfy a need in theresearch on how speech planning interacts with syntactic and prosodic structure inspontaneous speech. The long-term purpose of the research is to provide models forautomatic parsing of spontaneous speech and for psycholinguistical modelling of speechproduction. Identification of inhalation pauses is an important step in the developmentof automatic methods for spontaneous speech parsing.Identification of inhalation pauses is considered to be a keyword-spotting speechrecognition problem. Hybrid HMM(Hidden Markov Models)/ANN(Artificial NeuralNetworks) approach is applied to this problem. Method gets 90,8% in Recall, 66,4% inPrecision and 76,7% in F-score.
Utveckling av en moduluppbyggd destinationsskylt
Produktframtagningen av en moduluppbyggd destinationsskylt för bussar utfördes på Högskolan i Skövde i samarbete med företaget Mobitec AB som bland annat säljer de skyltar som används i stadsbussarna i London. Den destinationsskylt som togs fram var tänkt att fungera som ersättare för de tryckta dukskyltar som var befintliga i Londons stadsbussar och var därför tvungen att leva upp till deras krav på upplösning och läsbarhet. Detta skulle åstadkommas genom att bygga upp skylten med ett modulärt system av Super Fine Pitch LED Matriskort. Modulsystemet behövde klara viss påfrestning från vibrationer från bussen och tillåta enskilda moduler att lätt monteras och demonteras. För att ta fram ett fungerande system användes riktlinjer för DFA och DFD och användarbehov från montörer och reparatörer undersöktes. Under idégenereringen användes Set-based concurrent engineering för att inte felaktigt vidareutveckla ej fungerande koncept på bekostnad av eliminering av fungerande koncept. Tre resterande, likvärdiga koncept modellerades och testades för vibrationssimulationer i Creo Parametric 2.0.
Framtagning av äldreanpassad stol : the development of a chair suitable for the elderly
This report summarizes a Bachelor Degree Project in Integrated Product Development, carried out during the fall 2007 till spring 2008 by three students at the Product Design Engineering Program at the University of Skövde. The project was performed in cooperation with Lundbergs Möbler AB in Tibro. Lundbergs wants to start selling furniture to the public eldercare. The purpose of this project was to adjust one of their chairs. The project layout was to first make a preliminary investigation where the market, competitors? assortment and the purchasing process are studied.
Upplevelser av att ge palliativ vård utifrån sjuksköterskors perspektiv : En litteraturstudie
AbstractAim of the study: Aim of the study was to investigate whether there were any connections in time between different parts of care in patients with cardiac arrest and hypothermia treatment and cognitive and physical function six months after cardiac arrest and to investigate neurological outcome related to primary registered cardiac arrest rhythm after six months and if there were any changes in cognitive and physical functions as well as self-related health between discharge from hospital and six months after cardiac arrest.Method: The study included 39 patients admitted to three Swedish hospitals between 2008-2011. Cognitive and physical function was evaluated with Cerebral Performance Cathegory, CPC completed with Mini Mental State Examination, MMSE for cognitive function and Bartels Index, BI for physical function and Euroqol-VAS for evaluating the self-related health.Result: A significant connection was shown between time to start hypothermia treatment and BI, patients with longer time showed improved physical function after six months.Majority of the participants (66,7 %) had Ventricular fibrillation/Ventricular tachycardia, VF /VT, as primary registered cardiac arrest rhythm and in this group CPC and BI was significant better compared with the asystole /Pulsless Electrical Aktivity, PEA group.CPC, MMSE, BI and Euroqol-VAS were all improved over time.Conclusion: Participants with VF /VT as primary registered cardias arrest rhythm had significant better cognitive and physical function 6 months after hypothermia-treated cardiac arrest compared with participants with asystole/PEA as primary registered rhythm. This shows the importance of access to defibrillators in public places in the society and in hospitals and optimal education of lay people and medical staff. Cognitive and physical function and self-rated health improves over time, which might be a very important reason to convey patients, relatives and medical staff to continue cognitive and physical rehabilitation. Keywords: Cardiac arrest, hypothermia, cognitive and physical function, wellbeeing.
Utveckling av viktskivor, viktlås och viktställ för professionell gymverksamhet
Denna rapport behandlar ett examensarbete inom integrerad produktutveckling som utfördes av Andreas Carlsson och Marcus Ronnheim vid Designingenjörsprogrammet på Högskolan i Skövde vårterminen 2008. Examensarbetet var att utveckla Casall Sports Products viktskivor, viktlås samt viktställ för bodypumpviktskivor. Bakgrunden till uppdraget var att Casall tyckte att deras, redan nämnda produkter, var föråldrade och behövde ett nytt utseende samt att viktstället saknade vissa fördelaktiga funktioner. Rapporten beskriver hela produktutvecklingsfasen från förstudie till produktionsritningar.Under förstudien gjordes bl.a. en marknadsundersökning och användarintervjuer, detta resulterade i en kravspecifikation.
Lufttäthet i flerfamiljshus - mätteknik och metoder
Lufttätheten hos en byggnad påverkar dess energiprestanda, luftkvalitet inomhus, ljudisolering och riskerna för fuktskador. Lufttäthet definieras i Sverige oftast utifrån klimatskalet, i enlighet med tidigare byggnadsregler och den svenska definitionen för passivhus. Däremot finns det idag inga specificerade myndighetskrav på lufttäthet i Sverige. I examensarbetet undersöks lägenheterna i ett flerbostadshus i Malmö. Förutom lufttäthetsprovningar enligt SS-EN 13829 gjordes en mottrycksmätning för att bestämma läckaget mellan två lägenheter.
Säkerheten på en byggarbetsplats : Förhåller sig Skanska och dess underentreprenörer olika till arbetsmiljösäkerhet?
Approximately ten people die every year at building sites in Sweden. Every year TheWork Environment Authority (Arbetsmiljöverket) receives 3200 accident reportsfrom the construction sector. The Swedish building contractor Skanska has the vision:?Zero accidents?. Only at Skanska Sweden, where this diploma work is preformed,350-520 accidents and mishaps are reported every year for the last 5 years.
Undersökning av mental arbetsbelastning under instrumentflygövningar
En människa har en viss mängd kapacitet för att utföra uppgifter. Om uppgifterna blir för svåra eller för många, det vill säga om den mentala arbetsbelastningen blir för hög, går det inte längre att klara av alla uppgifter och prioritering av de viktigaste uppgifterna blir nödvändigt. Piloter behöver ofta ta in och bearbeta en stor mängd information under instrumentflygning. Ofta måste en del av uppgifterna utföras samtidigt och på begränsad tid. Syftet med examensarbetet är att, med hjälp av en subjektiv mätmetod undersöka vilka moment under instrumentflygövningar som medför störst respektive minst mental arbetsbelastning.
Energieffektiv torkning av kläder : en studie av torktumlare med varm- respektive kallvattenanslutning
Tumble dryers and drying cabinets have to a large extent replaced the traditional way of drying clothes outdoors. They are faster, more convenient, require less space and can be operated regardless of weather conditions. This replacement has significantly increased residential energy consumption, due to the fact that tumbles dryers consume large amounts of electrical energy. In the USA 9 % of the households electric energy is consumed when drying clothes. Over 4 million tumble dryers are sold in Europe each year and 20 % of the residential electricity consumption in Sweden is used drying and washing clothes.
Cross-Laminated Timber? En fallstudie av Hyttkammaren samt en jämförelse med prefabricerat betongelement ur platsomkostnadsperspektiv
Approximately ten people die every year at building sites in Sweden. Every year TheWork Environment Authority (Arbetsmiljöverket) receives 3200 accident reportsfrom the construction sector. The Swedish building contractor Skanska has the vision:?Zero accidents?. Only at Skanska Sweden, where this diploma work is preformed,350-520 accidents and mishaps are reported every year for the last 5 years.
Synen på rehabilitering av främst kvinnor för utmattningssyndrom enligt tre aktörer i offentlig sektor : En kvalitativ intervjustudie
AbstractAim of the study: Aim of the study was to investigate whether there were any connections in time between different parts of care in patients with cardiac arrest and hypothermia treatment and cognitive and physical function six months after cardiac arrest and to investigate neurological outcome related to primary registered cardiac arrest rhythm after six months and if there were any changes in cognitive and physical functions as well as self-related health between discharge from hospital and six months after cardiac arrest.Method: The study included 39 patients admitted to three Swedish hospitals between 2008-2011. Cognitive and physical function was evaluated with Cerebral Performance Cathegory, CPC completed with Mini Mental State Examination, MMSE for cognitive function and Bartels Index, BI for physical function and Euroqol-VAS for evaluating the self-related health.Result: A significant connection was shown between time to start hypothermia treatment and BI, patients with longer time showed improved physical function after six months.Majority of the participants (66,7 %) had Ventricular fibrillation/Ventricular tachycardia, VF /VT, as primary registered cardiac arrest rhythm and in this group CPC and BI was significant better compared with the asystole /Pulsless Electrical Aktivity, PEA group.CPC, MMSE, BI and Euroqol-VAS were all improved over time.Conclusion: Participants with VF /VT as primary registered cardias arrest rhythm had significant better cognitive and physical function 6 months after hypothermia-treated cardiac arrest compared with participants with asystole/PEA as primary registered rhythm. This shows the importance of access to defibrillators in public places in the society and in hospitals and optimal education of lay people and medical staff. Cognitive and physical function and self-rated health improves over time, which might be a very important reason to convey patients, relatives and medical staff to continue cognitive and physical rehabilitation. Keywords: Cardiac arrest, hypothermia, cognitive and physical function, wellbeeing.