Dissertations / Theses on the topic 'Konceptuell design'
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Bergström, Max, and Jona Sandgren. "Elflygplan, en konceptuell design." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-255693.
Full textThis report of a conceptual design of an electric driven aircraft was driven with the goal of making the flying sector more environmentally viable. The designated mission was chosen freely for the airplane. The result became a short distance plane with a range of 500 km, seating for eight passengers, primarily aimed towards companies. It was decided that the plane would have its cruising altitude at 4500 m, with a cruising speed of 280 km/h and have a short takeoff and landing distance. The airplane would be able to climb with a vertical speed of 6.67 m/s and have a stall speed of 150 km/h. From the specifications and the assumptions regarding different variables, the fuel weight and total weight was decided to be 2654 kg and 8294 kg respectively. The range of a corresponding aircraft driven with fossil fuels were calculated to be 2070 km. A constraint diagram was then constructed based on five chosen requirements. From this diagram the least power to weight and the highest possible wingloading was determined. A point slightly higher than the least required power to weight was chosen, leading to the engines needing to produce 1900 hp at takeoff. The wing area could be calculated from the decided wingloading and it ended up at 44 m^2 with a wingspan of 23.8 m because of a previously chosen aspect ratio. The length of the fuselage was calculated to be 16.2 m and its effective diameter 2.03 m. Finally an initial layout could be developed where a relationship between the wing and horizontal stabilizer was calculated and the center of gravity for the airplane was placed. The final airplane has a longer wingspan, is heavier and has a shorter range than what similar aircraft that are not driven with electricity have. It can be seen that the cruise speed can be increased above the 280 km/h in the constraint diagram, but the specified requirements were met, which was the main priority.
Hegestrand, Daniel. "ION: Konceptuell utveckling av elcykel." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Produktutveckling, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-37434.
Full textRizvanovic, Teo. "Konceptuell design av elektriskt flygplan." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-255706.
Full textDuring the spring semester 2019 the students partaking in the aerospace bachelor thesis were tasked to design an electric airplane to study the plausibility of an electric future for the aviation industry. It comes as no surprise that commercial aviation is a big polluter and electric powertrains could help drive it towards a sustainable future. The airplane developed in this report is an electric airplane in the light business jet class. Due to the required development of completely new technologies and the fact that the aircraft would be manufactured in small quantities the initial price of the craft would be rather high. This ties in nicely with the target audience of politicians and executives as they tend to be more capable of purchasing these products. With a carrying capacity of 8 passengers, corresponding to a payload up to 960 kg (including luggage) and a maximum range of 1500 km, the airplane is perfect for flights to cities on the continent. For example a flight from Stockholm Arlanda to Berlin Tegel (830 km) or Arlanda to Wien Flughafen (1240 km). By examining historical data on planes in the same class the maximum take-off weight was estimated to 11000 kg. This value was later used to construct the constraint diagram. By considering the usage of the plane specific constraints were set. These constraints were a function of wing loading and by plotting them together in a diagram an optimal point could be found. This point was 250 kg/m^2 which meant a power rating of 1580 BHP and a wing area of 43.8 square meters. With the maximum take-off weight set an estimation of the fuselage length could be done by comparing it with historical data on similar planes. The fuselage length was estimated to be 16,1 m. The wing was placed on top of the fuselage in a high wing configuration. To complete the 1500 km journey the aircraft needs batteries with an energy density of 3045 Wh/kg. By examining historical data on the energy densities of lithium-ion battieries and extrapolating it to the year 2030, an estimated energy density of 380 Wh/kg is attained. This is considerably lower than what is required. The best batteries today (2019) have a specific energy of about 280 Wh/kg, meaning the capacity of batteries would have to increase more than ten times to reach the needed density level of 3045 Wh/kg for the aircraft to be able to perform adequately.
Mattsson, Alexander. "Beräkningoptimering och konceptuell design avIndustriskydd." Thesis, Högskolan i Halmstad, Maskinteknisk produktframtagning (MTEK), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-31661.
Full textSAMMANFATTNINGDå industrin hela tiden utvecklas mot att bli mer effektiv och budgeterna blir allt snävareställs också högre krav på att minimera driftstopp och skador. I takt med att arbetet aveffektiviseringar inom svensk industri har ökat har uppdragsgivaren EAB, sett en störreefterfrågan av säkerhetsutrustning .En kategori som har ökat är deras industriskydd som ärskapat för skydda väggar i industrilokaler.Syftet med projektet är att generera ett rekommenderat koncept över hur ett nytt industriskyddkan konstrueras. Vidare skall även en statisk analysmodell skapas över ett kollision scenariomellan truck och industriskyddet. Målet med analysen är att skapa en stabil modell som enkeltkan appliceras på olika koncept. Vidare skall även en studie kring olika beräkningsmetoderutföras.Arbetet är uppdelat i två olika faser en konceptfas samt en beräkningsfas. Som sista steg iprojektet används den skapade beräkningsmodellen för att utvärdera det rekommenderadekonceptetProjektet är begränsat till det stadie där ett rekommenderat koncept är framtaget. Slutligdimensionering, detaljkonstruktion, tillverkningsberedning och verifiering överlämnas tilluppdragsgivaren.Teorin kring projektet har samlats in genom att studera relevant litteratur inommarknadsundersökningar, datorstödberäkningshjälp samt konstruktionsprocessen. Efterstudien har teori anpassats och applicerats för detta specifika projekt. Under beräkningsfasenhar en omfattande studie kring samtliga parametrar utförts för att skapa en stabilberäkningsmodell.Utfallet av modellen blev en enkel och stabil beräkningsmodell som kan appliceras på olikakoncept med goda resultat. Utvärdering av beräkningsmetoder genererade en ökning av denabsorberade energin med en faktor på fem.
Magnéli, Rickard, Staffan Seving, and Karl Johansson. "Konceptuell design och utveckling av hybridfordon." Thesis, University of Skövde, School of Technology and Society, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-2346.
Full textThis report covers the conceptual design of a new one person hybrid vehicle that is to be fast and convenient to drive on the roads. The vehicle is most of all supposed to be used as a commute vehicle but can also be used at other occasions as well.
During the work with this project the group has focused on three larger areas, the outer design (body), wheel chassis and an ergonomically designed interior. The group was not able to just create these parts in 3D to get a trustworthy vehicle, hence number of other components and details were also created to get a better entirety.
The outer design starts with idea generation and sketches and ends with a 3D model which is rendered to show how the final product is going to look. The design of the body has been going on during the entire work process due to new ideas and improvements that seemed interesting and had to be changed.
The wheel chassis also started with idea generation, research and sketches. It ended up with a simulated 3D model which later on was mounted on the vehicle body to show how the vehicle is going to perform during usage. The simulation was used to see if the ideas that came up were going to work in reality. The simulation in Pro/Engineer made it possible to save a lot of time and make the work process more efficient.
Finally the interior were designed inside the vehicle body but most importantly it was built and adjusted to the human body. Important measurements and facts were collected with the help of the ergonomic program Jack. Which controls that should be included was investigated and the steering wheel became the central part of the dashboard since the vital functions are controlled via this unit. The speedometer and likewise functions where also moved to the steering wheel to improve the visibility.
The group was also set to explore other interesting details especially the engines. The engines that were chosen to the final concept where so called wheel engines. These engines are mounted inside the rims and can also handle the braking of the vehicle which makes a separate braking system unnecessary. The wheel engines had so many advantages that they became the obvious selection. But the vehicle was from the beginning set to be a hybrid and with only the wheel engines it was not. To make it hybrid, a second, smaller engine was put in, but only for recharging the batteries when needed. This engine is driven by gasoline or ethanol.
Hafvenström, Astrid, and Andreas Pettersson. "Konceptuell design av ett elektriskt drivet kommersiellt flygplan." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-255795.
Full textThe purpose of this bachelor thesis is to design an electric powered commercial short-range aircraft that is set to take off in 2030 with reasonable technical advancement assumptions made. The aircraft is designed with the ATR 42-500 as inspiration and has therefore similar requirements. The aircraft has a payload of 5070 kg and cruises at 7600 m above sea level. It has a max speed of Mach 0.5 and a stall speed of 41 m/s. Climb rate is 560 m/min, takeoff distance is 1165 m and landing distance is 960 m. The conceptually designed aircraft has a range of 400 km that is approximately the distance London-Amsterdam and is able to carry up to 48 passengers in a two by two seat configuration. Batteries are expected to improve with 30 % during the next ten years resulting in a maximum takeoff weight of 19900 kg, where 3220 kg is battery weight. Fuel powered it has a maximum takeoff weight of 19200 kg and a fuel weight of 2900 kg. The power needed for propulsion was found to be 4.18 MW which would be equally divided over the engines that drive the two propellers. These are positioned one on each wing. The 26 m long aircraft is equipped with an unswept high mounted wing with a wingspan of 29 m and a wing reference area of 75 m^2. The horizontal stabilizer is 12 m^2 and the vertical stabilizer is 11 m^2.
Lindgren, Ebba, and Andreas Baldhagen. "Konceptuell flygplansdesign : Design av stridsflygplan för luftburen satellituppskjutning." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230170.
Full textIs it possible for Saab's JAS 39 Gripen E to perform an airborne satellite launch? This question has been answered in this project based on a design-like equivalent fighter aircraft. The designed aircraft was developed at a conceptual level with the satellite launch mission as its starting point. The purpose of the project was to conceptually design an aircraft capable of performing an airborne satellite launch. The delimitations that were made were, among other things, that the designed aircraft would imitate JAS 39 Gripen E's abilities as much as possible. Another demarcation that was made was the geographical starting point of Saab's production in Linköping, Sweden. From the starting point in Linköping, a range of 800 km one way was set to the Norwegian Sea. There the aircraft was assumed to ascend to 16 km and then release the rocket. The rocketmass was calculated to 1530 kg including the 30 kg microsatellite that aimed to be launched to a low orbit around Earth. After performing the mission of launching the rocket, the aircraft will return to the starting point without refueling. The design of the aircraft was initiated in specific requirements for the aircraft based on data about JAS 39 Gripen E, taken from a data sheet published by Saab (2016). Some values that where not presented in the data sheet were assumed based on aircraft design literature. The requirements together with a mission profile led to a weight estimation of the aircraft's total weight, empty weight and fuel weight. From the weights and weight ratios, a constraint diagram was created based on the performance parameters; maximum take-off distance, rate-of-climb, cruise speed, constant velocity turn and maximum speed. This resulted in an optimal design point that gave a thurst-to-weight ratio as well as the wing loading. The conditions set a requirement on the engine and gave an estimated value of the wing area, which resulted in wing and tail design, wing geometry and center of gravity. The result of the designed aircraft shows that the requirements and values calculated is similar both in appearance and value specifications of the JAS 39 Gripen E. The conclusion is therefore, based on the mission profile, that it is possible for the JAS 39 Gripen E to perform an airborne satellite launch. Further work with the project may be to refine the weight estimates and specify the mission profile even more, for example with specific speeds. Further development of the project may be to design a converter or installation device to the fighter to be able attach the rocket and perform the mission in real.
Poutiainen, Aaron, and Sivers Fei Von. "Konceptuell flygplansdesign : Design av flygplan för luft lanserad satellit." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230194.
Full textThis bachelor's degree project is about designing an airplane for high-altitude rocket launch.The rocket shall carry the satellite PICARD weighing 143 kg and will be fired up to low earthorbit (LEO).The aircraft's payload, the mass of the rocket, is three tons. The rocket is separated above theBaltic Sea, therefore, a range of 600 𝑘𝑚 and 30 minute endurance is required. For the rocketto reach the low earth orbit as quickly as possible, it is released 10 𝑘𝑚 above sea level.The aircraft is designed to mimic and perform as a fighter aircraft with high maneuverability.Therefore, the aircraft is assumed to have a climb rate of 2 km/min as well as take-off andlanding distance 460 m and 700 m respectively. The airplane cruise speed is set to Mach 0.9.Stall speed is assumed to be 200 km/h.This resulted in a total airplane mass of 19 𝑡𝑜𝑛𝑠, 66.2 𝑚2 wing reference area, 14 mwingspan, tail area of 13.8 𝑚2 and 24.1 𝑚2 respectively. The engines of the aircraft resultedin 2x F404-GE-402 turbofan jet engines manufactured by General Electric and giving theaircraft 158 kN propulsion.
Siljeströmer, Rikard, and Elliot Hallin. "En konceptuell design avtransportflygplan : En studie inom över- och underljudstransporter." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-211563.
Full textSöderkvist, Gustav, and Elsa Lindström. "Konceptuell studie av hållare för förenkling av inköp." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Maskinteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-36300.
Full textDenna rapport omfattar ett examensarbete utfört av två studenter vid högskoleingenjörsprogrammet i maskinteknik, inriktning produktutveckling och design på Tekniska högskolan i Jönköping. Uppdraget bestod av att ta fram ett produktförslag som underlättar hanteringen av inköpslista under inhandling vid dagligvaruhandel.Examensarbetet resulterade i ett slutligt koncept som tog fram i form av en fungerande prototyp. Produkten består av en platta, ett fäste för kundvagn, två snäpplister, ett lock och en pennhållare. Produkten har ett smidigt fäste som underlättar montering av produkten samt gör den anpassningsbar efter konsumentens önskemål.Uppdraget kommer ursprungligen från enmansföretaget Sirge AB som i sin tur hörde av sig till konsultföretaget Sigma Industry då företaget inte var etablerad inom produktutvecklingsområdet och därmed inte besatt den kompetens som behövdes för att utföra arbetet. Kontaktpersonen vid Sigma Industry ansåg uppdraget vara lämpligt som ett examensarbete. Sirge AB hade hittat ett glapp på marknaden för produkter som underlättar för konsumenter i dagligvaruhandeln. Önskemålet från kunden var att ta fram en produkt som kan fästas vid kundvagnen och underlätta hanteringen av en inköpslista. Detta för att undvika att hålla flera saker i handen samtidigt och istället frigöra händerna för varuplockning, scanning och dylikt. För att uppnå målet med arbetet utformades tre frågeställningar som sammanfattades med en huvudfrågeställning: Hur ska ett hjälpmedel designas för att hantera inköpslistor vid inhandling i butik och även vara flexibel för att klara olika typer av analoga eller digitala listor, konsumentägd och med rätt materialval? För att besvara huvudfrågeställningen arbetade projektgruppen efter metoden Bootcamp Bootleg. Arbetet inleddes med en förstudie som hade till syfte att undersöka intresset bland framtida konsumenter och utifrån detta ta fram en fokusgrupp. En marknadsundersökning gjordes även för att se vilka konkurrenter som fanns på marknaden samt för att se hur den nya produkten kan slå sig in på marknaden. Koncept togs fram med hjälp av metoden brainstorming och har sedan utvärderats och sållats genom metoderna SWOT och elimineringsmatris. De koncept som togs fram har sedan modellerats upp i CAD-programmet SolidWorks.Det slutliga konceptet består av en platta med en huvudfunktion som gör det möjligt att fästa en inköpslista. Produkten erbjuder även delfunktioner som förvaring av penna, telefon och ett extra utrymme för förvaring av andra föremål. Plattan och fästet till kundvagnen gjordes i CAD och togs sedan fram genom 3D-printing. Fästfunktionen för inköpslistan erbjuds genom snäpplister och är standardkomponenter gjorda i aluminium. Pennhållaren är gjord i ett läderlikt material och skivan som användes som lock har tillverkats i ett frostat plexiglas.
Jonsson, Filippa. "IT-baserat utbildningssystem för dialyspersonal : en användarcentrerad förstudie." Thesis, Uppsala University, Department of Information Technology, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-125392.
Full textThe dialysis ward at Karolinska University Hospital is a highly pressurized work environment filled with critical treatment situations where patient’s lives can be constantly in danger. Staff have to deal with a myriad of alarms and error codes in response to their patients varying ailments. The workforce at the dialysis ward lack controlled environment training, sufficient to address all of the potential treatment scenarios, with no risk of jeopardizing the patient’s condition.The purpose of this essay is to design and test the efficacy of using an IT based device for dialysis education at Karolinska University Hospital.The main topics this essay intends to address are:
• Identification of user scenarios and training fields.
• Prioritization of key training areas.
• Utilization of IT in effective staff training.
• Design of a conceptual prototype.
The process focuses on the user and their needs. Selected methods within training needs analysis and user centered system design have been conducted throughout the process. This includes user and task analysis to map the activity, followed by workshops and a close relationship between developer and end-users to create conceptual prototypes and user scenarios.The research concludes that there is a need for a training device able to simulate real dialysis treatments. It shows that training routines are more important than to train the actual physical handling of the dialysis machine. The preferred training device is a medium advanced simulator used via a computer screen.This report is written in Swedish.
Elofsson, David. "Konceptuell design för elverk drivet av kroppsenergi : Avsett för bruk i en fältmässig miljö." Thesis, Högskolan i Skövde, Institutionen för teknik och samhälle, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-8106.
Full textA conceptual design for a generating set, driven by muscle power and intended for use in a field-rateenvironment, has been developed at the request of the rehabilitation-center of Vätterbygden and Universityof Skövde. A concept has been generated and chosen, and dimensioning calculations and choice ofmaterials for vital parts has been performed, partly using the CAD-software Pro/Engineer Wildfire 5.0and its application Mechanica Structure. Other tools used in the process include identification of customerneeds, generation of target specifications, Black box, Morphological tables, Pugh’s matrix for choiceof concepts and weighted matrix for choice of concepts.The generating set's purpose is to be used in emergency relief activities when the local power grid isdown and there are no fossil fuels at hand. In such situations the generating set may be seen as a powerfulcompliment to solar and wind power, since it makes the power supply independent of wind and solarconditions.The operating principle of the generating set is partly that of a rowing ergometer. The user applies analternating pull, belted to a mobile seat and holding a handle-bar. The users return to start position iseased by a spiral spring. This motion is repeated about 25 times each minute. A steel wire rope runs fromthe handle to a reel which in turn is mounted on a driveshaft. The driveshaft is through a free-wheel connectedto a planetary gearbox, shifting the average rotational speed from 60 rotations per minute to1500. A flywheel decreases the variation in rotational speed, before a synchronous generator with fourpoles is driven by the remaining torque. The frequency of the generated power is lastly adjusted to 50 Hzusing a frequency converter.According to the 1995 J. Carlstedt book "Tester för idrottare", the lactic acid threshold limits the workloada person can endure without rapid fatigue. This limit is exceeded when the oxygen absorption of theindividual hits 70-90 % of capacity (VO2max), depending on the level of fitness. The study ”Stroke PowerConsistency and 2000 m rowing performance in varsity rowers”, conducted by Shimoda et al. in 2007,concludes that varsity rowers can achieve a maximum oxygen absorption of VO2max = 4,1 ± 0,4 l/min at arowing workload of 300 Watts. Based on the workload in this study corresponding to 70 % of VO2maxbeing 200 Watts, this magnitude of power was judged as the endurable workload a user of the generatingset could be expected to supply.The required diameter of the steel wire rope and dimensions for the wire reel has been settled. The appropriatenumber of teeth for the planetary gearbox’s cog-wheels has been calculated, as well as themoment of inertia for the flywheel. A specific self-aligning ball-bearing with an adapter sleeve, SKF 1206EKTN9, has been chosen for use at the driveshaft of the generating set. Furthermore, materials and dimensionshave been determined for the wire reel, the flywheel, footrests, load-bearing structure and partsof the seat through the use of analyses in Mechanica Structure. Lastly, two images showing the functionand parts of the generating set have been rendered.With a degree of efficiency when operating at a 200 W workload of η = 0.86 for the generator and η =0.94 for the planetary gearbox, 160 W remains before any currently unknown frictional losses has beensubtracted. Hence, this generating set is unable to compete with generating sets driven by diesel andgasoline in regard of capacity. The main advantage of the generating set is instead the ability to generatepower regardless of time of day, weather-conditions or fuel-access, as long as there’s an individualavailable for powering it.The development of the generating set is still very much a work in progress. It is recommended that theidentified customer needs and set target specifications are continuously regarded during possible proceededdevelopment.
Lindahl, Hugo, and Albin Karlsson. "Analys och utveckling av en konceptuell testmetodik : En förstudie för grepptest av skor." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-74818.
Full textAllard, Olof. "Katastrofisk design : Ett designförslag för en digital scenarioeditor." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-108979.
Full textLarsson, Felicia. "Outdoor Office, for work in nature : Ett konceptuell idé med fokus på hälsa, distansarbete och service design." Thesis, Konstfack, Industridesign, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-7761.
Full textJohansson, Sebastian, and Caballero Rodrigo Vives. "Utveckling och utvärdering av gränssnitt : En gränssnittsprototyp för design av t-shirtar." Thesis, Jönköping University, JTH, Computer and Electrical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-446.
Full textThis thesis project is based on a business idea where users can design their own t-shirt online. The project shows the first step in the development process where a prototype for a user interface is created and evaluated.
The purpose of this thesis project is to answer the following question:
How does one develop a user interface for t-shirt design with consideration to interaction design theories?
In order to answer this question the design process began with scheduling the work at hand. The first step was to build a conceptual model based on specifications made prior to this project. This conceptual model became the foundation for the physical design.
A high fidelity prototype was created using Macromedia Flash and Actionscript 2.0. The prototype was used to evaluate usability and user friendliness of the user interface. This was done through user testing and field studies which included user observations and a paper based survey. The evaluation results showed some problems in the user interface that affected usability and user friendliness. These problems were broken down to a problem ranking list which can be used as a base for future development and evaluation of the user interface.
Dahlgren, Amanda. "Quadro : Sidobordet som blev podium för identitet." Thesis, Linnéuniversitetet, Institutionen för design (DE), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-54089.
Full textI mitt projekt arbetar jag med den osedda möbeln: sidobordet. Namnet Quadro är en blandning mellan italienskans quattro som betyder fyra och latinets ”quadratum” eller ”quadratus”. Efter analys av olika sidobord kom jag fram till att sidobordets primärfunktion är att höja upp andra artefakter. Jag drar kopplingar till identitetsskapande genom konsumtion och har skapat ett sidobord genom att kombinera möbeldesign med konceptuell design. Projektet slutförs med en undersökning för att se om identitetsskapandet går att observera genom valet av artefakter.
Chowdhery, Syed Azad. "A data-driven approach for Product-Service Systems design : Using data and simulation to understand the value of a new design concept." Licentiate thesis, Blekinge Tekniska Högskola, Institutionen för maskinteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-19036.
Full textWallin, Nils, and Erik Olsson. "Praktiska effekter av begreppsförvirring för en databas konceptuella design : En fallstudie om databas- och begreppsmodellering." Thesis, Högskolan Dalarna, Informatik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:du-4868.
Full textSvensson, Jennifer. "Effekten av ett passivt vs. aktivt interaktivt användarstöd : Hur ett hjälpverktyg kan påverka användningen av en ny digital plattform." Thesis, Linnéuniversitetet, Institutionen för datavetenskap och medieteknik (DM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-106221.
Full textYang, Halvardsson Chenfei. "Hur minns du allt? : -En självobservationsstudie om memorering inom klassiskt piano." Thesis, Karlstads universitet, Institutionen för konstnärliga studier (from 2013), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-67257.
Full textPlaying a piece by heart is an important aspect of being a musician, despite this there are few concrete guidelines for how the memorization process is optimized, and musicians often find their own way. The purpose of this study was therefore to, from a design theory perspective, investigate which resources underlie effective memorization. To investigate this, two memorization methods, constructed in line with previous literature and research, were tested on two Intermezzo by Brahms. Method one was based on mechanical learning without analysis, method two was based on harmonics analysis. Video observation and logbook were used to document the process, efficiency was measured by utilized hours. Results showed that method two depended more on conceptual framework compared to method one, the methods were however similar in other used resources. Method two (5 hours 15 minutes) was more time-efficient than method one (14 hours 20 minutes). In addition to the improved efficiency, method two contributed to greater awareness in the memorization process, which in turn led to increased motivation for memorization. The discussion examines the study's results in relation to previous literature and research.
Hörding, Olga. "A comparative study between user research in academia and user research in commercially driven companies." Thesis, Uppsala universitet, Avdelningen för visuell information och interaktion, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-258406.
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