Sökresultat:
4566 Uppsatser om Production technology - Sida 64 av 305
Granskning av kvalitetssäkringsarbetet vid en ICC-profilbaserad trycksaksproduktion
To make your company change from a conventional workflow to an ICC-based workflow you need tomake investments in time and money. On the other hand you get your reward in terms of a stable andquality safe production. To choose this way of adjusting your company to new routines requires accuracyas well as a great deal of commitment. It is not only about having the right equipment. There area lot of factors that affect the quality of production.Our ambition with this report is to bring out the importance of general thinking when it comes toICC-profiling and to discuss on which basis printing profiles should be created.
"De är ett väldigt nyfiket släkte, barnbibliotekarierna". En kvalitativ undersökning av hur 1990-talets samhällsförändringar påverkat barnbibliotekariernas arbetsuppgifter, kvalifikations- och fortbildningsbehov
The purpose of this master thesis is to investigate what the work situation of children's librarians looks like in the year 2000, after the changes in society which took place since the 1980's. Did the tasks of children's librarians change during the nineties, and if so, in what way and why have they changed? Which new knowledge needs emerged for children's librarians during the nineties, and what was the cause of these new needs? Finally I want to know which needs for professional development arose, and how these needs are fulfilled. The thesis is based on qualitative interviews with children's librarians, library managers, library consultants, one representative of the Swedish school of Library and Information Studies and one member of SAB's children and youth committee. The study reveals that the identity of children's librarianship is strongly associated with the stimulation of language and reading.
Metoder att förhindra nedisning av vindkraftverksblad
ABSTRACTMany wind turbines have problems with icing and there is still no effective method to de-ice without stoppage of production and power loss. Here I therefore consider other methods than those available today, and particularly, I consider how these methods could be applied to wind turbines of the company Oxel. A surface where the water droplets do not attach might be the basis for a useful method. If no water attaches, no ice could form. To accomplish this a hydrophobic surface is nessesary, for example wax.
Ljudisolering - Teknisk felsökning och kvalitetssäkring av lätta bygg-system
By using industrialized building, pre-installed modules can be delivered to the construction site where they are easily mounted. This method has many advantages compared to on-site manufacturing, for example, the precision during the production process should be much higher than building each wall and floor on site. Furthermore, the quick erection procedure when using prefabricated elements and the possibility to use weather protection has the advantage of not being dependent on weather conditions, and many other factors.Masonite Beams AB is a Swedish company (a member of the Norwegian company, Byggma ASA) with a relatively new technology using light weight beams as bearing elements in the walls and a certain stiff board lamella slap which is mounted on the top of the floor structure creating an integrated stiff beam / board floor structure. The elements are flat which make it much easier to transport the elements from the factory to the building site where the building parts are easily mounted with special mounting stud.One of the main drawbacks of lightweight structure is the sound transmission. The main topic is low frequency annoyance, however the complex structural elements and their mutual sensitive connections other acoustical problems might appear.
Koncerninterna vinstöverföringar - finns det någon strategi?
The purpose of our essay is to find out if there are any strategies for profit transactions in a group. To realise our purpose we conducted two case studies with interviews. But we can not draw any general conclusions.To conduct the research we had to build a theory. In this theory we found motives to do profit transactions and how to do it. We also thought that there had to be some conflicts between the motives and the manager´s interests.In our analysis we found that financing the dividend was a strong reason to make profit transactions between companies in the group.
Kan befattningen påverka inre arbetsmotivation och psykiskt välbefinnande? : En studie med tjänstemän med olika grad av individuella krav och kontroll på arbetet
The aim of this study was to examine differences in the experience of intrinsic work-motivation and to examine changes depending on profession, where the purchasers experienced a higher level of individual demands and control than the production leaders. Another purpose was to see how the intrinsic motivation needs predicted mental well-being in the professions. The study was carried out using an internet survey that was distributed by e-mail, there were 98 participants. Two questionnaires were used; Basic Need at Work scale (W-BNS) measured intrinsic motivation and GHQ12 measured mental well-being. The result showed that the staff overall had high intrinsic motivation with highest scores on relatedness followed by competence and lastly autonomy.
Small scale pig production in Takeo province ina rural area of Cambodia
Cambodia, in Southeast Asia, has tropical monsoonal climate with distinct dry and rain seasons. Many people are poor and live in rural areas. Farmers mainly culture rice, and raise pigs, cattle and poultry as well. During two months, a minor field study was performed in Cambodia. The main purpose was to evaluate the impact of contributions done by projects that started in 2005 and were managed by the local organization CelAgrid.
Design of a Direct-conversion Radio Receiver Front-end in CMOS Technology
In this Master's thesis, a direct-conversion receiver front-end has been designed in a 0.18um CMOS technology. Direct-conversion receivers (DCR) have obvious advantages over the heterodyne counterpart. Since the intermediate frequency (IF) is zero, the problem of image is circumvented. As a result, no front-end image reject filter is required and the channel selection requires only a low-pass filter, which makes it easy to integrate directly on chip. However, the DCR also suffers from several drawbacks such as extreme sensitivity to DC offsets, 1/f noise, local oscillator (LO) leakage/radiation, front-end nonlinearity and I/Q mismatch.
Värdeflödesanalys och simulering av axelflödet på Volvo Lastvagnar - Ett Lean Production perspektiv
Problem Hur förhåller sig den nuvarande axelprocessen gentemot denkommande linjebaserade axelprocessen utifrån ett synsätt grundat iLean Production och vilka möjligheter till förbättringar finns?? Hur ser den nuvarande axelprocessen ut?? Vilka problem finns i den nuvarande axelprocessen?? Vilken inverkan har problemen på den kommandeaxelprocessen?? Finns det potential för förbättringar i den kommandeaxelprocessen?Vilken produktionsmix av axlar ger den minsta buffertnivån mellanaxelmåleriet och axelmonteringen med bibehållen kapacitet?? Hur fungerar dagens måleri process?? Hur många varianter finns det av varje axel och vad ställerdet för krav på måleriprocessen?? Vilka parametrar är det som styr buffertnivån?? Vilken felfrekvens har de olika delprocesserna i måleriet?Syfte Studiens första syfte är att jämföra den nuvarande och den kommandeaxelprocessen utifrån ett perspektiv grundlagt i produktionsstrateginLean Production och genom analysen föreslå förbättringar av denkommande axelprocessen.Det andra syftet är att föreslå en produktionssekvens av axlar förmåleriet som minimerar buffertstorleken i axelprocessen.Metod För att på ett fullgott sätt lösa problemen i detta examensarbete krävdesdet att två olika typer av metoder användes, en fallstudie samt ensimuleringsstudie. Två metoder möjliggjorde triangulering samt gavsynergier i datainsamlandet. Både kvantitativ- och kvalitativ data liggertill grund för studien.Slutsatser Fallstudien visar att det framtida upplägget av axelprocessen är bättreur ett Lean Production perspektiv än det nuvarnade. PIA, ledtiden samtdistansen minskar samtidigt som andelen värdeadderande tid ökar, setabell 3 nedan.
Klöver i ensilage till suggor - effekter på reproduktion och produktivitet
The weather has been extremely rainy the last summers in Sweden. Because of the rain, a lot of harvested straw has been lost since it was too wet to store. When the pig producers couldn?t get enough straw to use as bedding, an alternative was requested. Silage is a realistic alternative to straw but since silage often contains clover, it may not be suitable to use in pig production since clover is rich in phytoestrogens.
Wickrpedia : Integrering av sociala tjänster
The web has evolved much through the years. From being a place where author and reader were clearly distinguished, it now invites everyone to take part in the development of both content and technology. Social services are central in what is called Web 2.0. Wikis, blogs and folksonomies are all examples of how the users and their communities are key to the development of services. Collaborative writing, tags and API:s are central.
Simulering och cykeltidsberäkning av automatiserad produktionslina med hjälp av Process Simulate
Detta examensarbete har utförts i samarbete med Löfqvist Engineering i Örebro. Uppgiften har varit att utföra en simulering av en stor automatiserad produktionslina som ska användas vid tillverkning av avgassystem till lastbilar. Utifrån denna simulering skall exakta cykeltider för produktionen bestämmas. Dessa tider kan sedan användas av Löfqvist Engineering för att verifiera tidigare uppskattade tider.Arbetet inkluderar en litteraturstudie om Lean Production och hur det fungerar ihop med automation. Det finns även med lite bakgrundsinformation om Just In Time, olika filformat och robotsimulering i allmänhet för att ge en bättre överblick av ämnet.Programmet som har valts för att utföra simuleringen är Tecnomatix Process Simulate och den inbyggda Line Simulation modulen.
Kartläggning och analysering av initieringsprocessen : En fallstudie utförd hos Teknikgruppen för RV2012 på Sandvik AB
This thesis has been carried out to the Technology Group at industrial plant Tube Mill2012, which belongs to the Sandvik AB. Technology Group is a unit that takes care ofall requirements and suggestions regarding investigations, test runs and designmodifications. The main objective is to identify and analyze the existing initializationprocess to see where improvement opportunities exist and to come up withsuggestions for improvement, supported by previous research and literature. Anextensive literature search and case study has been conducted to provide a solidfoundation to refer to during the work. Completing the interviews and the workshopgave a clear picture of their unstructured work and approach, how the lowrequirements on the received orders caused problems for the group as well as thelack of a standardized resource allocation method provides major delay factors.Solution proposal then became a very easy process model in five steps with all theinformation gathered in one place.
Utvärdering av AOT för ett pilotskaligt, recikulerat akvakultursystem för fiskodling
With the climate change issues growing in importance on the social agenda, the field of urban masterplanning is of no exception when it comes to minimizing the carbon footprint in a variety of projects. The aim of this thesis has been to prepare the Carbon Critical Masterplanning tool, a software plugin for carbon dioxide emissions assessment developed by Atkins, to be used in Swedish conditions. The main targets were to improve the areas of the tool associated with energy conversion and renewable energy sources, and to test the tool in a real case. A planned construction of a new campus in Albano, Stockholm was chosen for the pilot study. A 3D model was built in the tool and the carbon footprint was calculated for a variety of combinations for energy supply to the future area.
Kvalitetsverktyg för att uppnå förbättringar inom produktionsföretag : Med en fallstudie av förbättringsarbete på AstraZeneca
I dagens samhälle ligger fokus på att företag och organisationer ska växa, vara vinstbringande samt att alltid ligga i framkant vad gäller ledande kunskaper inom företagets verksamhetsområde. Ett sätt för företag att ständigt utvecklas och förbättra sin verksamhet är att analysera verksamheten med hjälp av olika kvalitetsverktyg. Företagets arbetssätt analyseras varvid problem upptäcks och åtgärder kan sättas in, med högre kvalitet och lönsamhet som resultat. Syftet med följande rapport är att på ett lättöverskådligt vis belysa och sammanfatta olika kvalitetsverktyg företag använder i sitt förbättringsarbete samt att göra en jämförelse dem emellan. Rapporten visar även på hur en av metoderna kan appliceras i verkligheten.