Sök:

Sökresultat:

1525 Uppsatser om Varied unsteady flow - Sida 12 av 102

Effektiviseringsmöjligheter på Tunadals sågverk : med innesäljarprocessen i fokus

The investigation was initiated because of the high workload of the sellers and, additionally, because the Tunadal sawmill has received low ratings in customer surveys. Thus,  two main approaches are adopted here,  the first being to investigate which of the three methods  of working, namely, market divided flow organization, function organizationand flow organization with collaboration, proves to be the most beneficial. The second is to investigate whether there is an available method to ease the daily work. A literature review has been made in order to determine more efficient ways for the sellers to work in the Tunadal sawmill. During the investigation, an in-depth investigation into the total quality management using a balanced scorecard as a management tool was conducted.

Kartläggning av truckflöden på Primary Products : Ur ett Lean Production perspektiv

The Transport division is responsible for the internal transports on Sandvik MaterialTechnology AB. At the moment there is no clear picture of how the straddle carriers aremoving at the division Primary Products and if it is working in a satisfying way. It isimportant to see the whole picture of the transportation flow so improvements can be made.The purpose of this essay is to survey and analyse the truck flow in a Lean Productionperspective. The essay is delimited to only include straddle carriers transportation ways in thePrimary Products division. To survey the truck flow we have used a method called Walkthrough.This means that we have walked thorough the whole production flow andinterviewed some of the employed on the way to get the necessary information.

You got flow? ? En studie om konsumentbeteende online

Dagens konsumentbeteende online skiljer sig åt från hur det såg ut för bara några år sedan, någotsom kan förklaras av att både e-handel och Internet ständigt utvecklas och vårt köpbeteende ochvåra preferenser tenderar att förändras över tid. Den tekniska utvecklingen gör attkonsumentbeteendet inom e-handel tenderar att växla snabbt vilket gör kontinuerlig analys avkonsumentbeteende till en nyckelfaktor för att lyckas inom e-handel.Studien syftar till att undersöka det något yngre kvinnliga segmentets, i åldern 25-34 år,konsumentbeteende inom e-handel idag. Flow är ett använt begrepp för analys avkonsumentbeteende och har visat sig påverka både attityder och avsikter avsevärt inom virtuellamiljöer som exempelvis e-handel. Flera definitioner på begreppet tyder på en viss komplexitetoch att tillståndet tenderar att förändras och växa i takt med utvecklingen. I studienkonceptualiseras flow i kategorierna koncentration, njutning och förvrängd tidsuppfattning, där viundersöker hur de påverkar webbsajters användarvänlighet och konsumentens upplevdabeteendekontroll, och vi fokuserar på konsumentbeteende online i form av impulsköp och avbrutna köp då vi önskar analysera om beteendena påverkas av ett flow-tillstånd Via en enkätundersökning med kvinnliga studenter från svenska universitet visar våra resultat attflow i form av njutning och förvrängd tidsuppfattning ökar impulsköp, medankoncentrationsnivån inte har någon påverkan på konsumentens impulsivitet.

Mesatorrhalt

AbstractDegree thesis Solid content in Lime Mud By Andre Flodin Process operator program ? Umeå University 17/6 ? 2014 Pages: 21A thesis was made on Billerudkorsnäs production unit in Karlsborg where lime kiln in the causticising department of chemical recovery plant does not meet the required production. Causticising department is the final step in the chemical recycling unit. There, the filtered green liquor is mixed with lime to recover the cooking chemicals used in the pulp factory. The cooking liquid is called white liquor.

Utveckling av ramverk för editering och simuleringav BPMN

Business Process Modelling Notation (BPMN) is a way to graphically draw a diagram of a business process. A BPMN diagram consists of several so-called flow objects. These are interconnected in the graph through sequence  flows. BPMN models are merely graphical representations of business process and there is a need to simulate these diagrams for different purposes. The simulation that now is available for BPMN is that the model is evaluated by checking if it is correct.

Development of Liquid Cooling for PCs

In recent years, existing solutions for cooling personal computer CPUs have been supplemented by a new product category, factory sealed water cooling loops. These systems, consisting of a water block with an integrated pump, a fan and a radiator, perform well compared to the air cooling solutions but are less effective than larger, custom-built water cooling systems.This project aims to explore the most important aspects of a factory sealed system and to identify possible cost-effective enhancements of the performance.The most significant differences between the different groups of water cooling loops are the block design and the pumping power. The performance of both categories is also largely dependent on the fan power, but increasing fan power has a large negative impact on the noise level.Both radiator size and fan model choice appear, in tests, to be relatively unimportant, presuming that the noise level is kept constant. The position and direction of the fan, however, has significant impact on both the temperature and the sound level.Water blocks can be designed in several different ways, both regarding the heatsink design and the flow direction. In simulation, flow with the inlet centered above the heatsink result in considerably lower pressure drop and slightly higher temperatures than flow through the block, for heatsinks with fin arrays.Creating a competitive product in this product segment certainly seems possible, as there are performance-increasing changes to be made that seemingly has little impact on the production cost.

Föroreningsspridning via ledningsgravar : en fältstudie på Köpmanholmens industriområde

Sewer trenches usually contain material with a higher hydraulic conductivity then the adjacent soil. Thus they can serve as paths of preferential flow in a polluted area. Wastewater from factories can also leak from wastewater pipes and pollute the soil in the sewer trenches.The purpose of this project was to investigate pollutions in sewer trenches and in sewer pipes in the industrial area of Köpmanholmen, 20 km south of Örnsköldsvik in the north of Sweden. To make an estimation concerning the potential of transport of pollutions in sewer trenches, hydrological calculations were performed.Leakage to any greater extent did not seem to be a problem in the area. This is the case both for the concrete and the wooden pipes that have served as factory wastewater pipes.

Fluidrörelse- och värmetransportsmodellering i götugn

The purpose of this thesis for Sapa Heat Transfer is to examine a furnace in which aluminium is pre-heated before hot rolling. The project is modeled in a computer environment in which the air flow in the furnace and the heat transfer to the aluminium solids are included. The computer environment and its governing equations, as well as boundary conditions and generalizations, are presented and explained.The simulations are based on two models. The first model has an asymmetric solid placement, which is how it looks in today's ovens. It is validated against collected data.

En Modell av SOA för Agila Organisationer

In a dynamic and unpredictable reality, either rigid structures or silo architectures areappropriate ways to organize an agile organization. This thesis enlightens these relationsbetween Service Oriented Architecture (SOA) and an organization who acts in a varied andconstantly changing business environment. In other words, this thesis enlightens the question:?How suitable is SOA to organize the enterprise who will meet a constantly changing andheterogenic business environment?.The thesis presents a model where an efficient organization must be agile to be able to actquickly in the business environments with constantly changing desires, needs, expectations,desires etc. According to the same model a Service Oriented Architecture organizes theenterprise elements such as processes, resources, competences, responsibilities, informationsystems etc.

Informationsdesign i hemmets hjärta : Struktur och ordning i kök för personer med neuropsykiatriskt funktionshinder

Business Process Modelling Notation (BPMN) is a way to graphically draw a diagram of a business process. A BPMN diagram consists of several so-called flow objects. These are interconnected in the graph through sequence  flows. BPMN models are merely graphical representations of business process and there is a need to simulate these diagrams for different purposes. The simulation that now is available for BPMN is that the model is evaluated by checking if it is correct.

Utökning av mätområdet för turbinverkningsgraden på avgasturbo

The Goal with this Master of Science thesis is to expand the possible turbine efficiencymeasurements on an exhaust turbocharger. It was done as a part of the CICERO competencecentre. To feed the turbine with air a special flow rig has been used. Instead of loading theturbine by just restricting the compressor flow a docking system for an electrical dynamometer isdesigned to use the dynamometer as an additional loading source. By using an electricaldynamometer as loading device for the turbine, measurements are not depending on compressorperformance.A large part of the work consists in designing accessories for the dynamometer.

Aerodynamisk optimering av vindkraftverks rotorblad med en genetisk algoritm, BEM-teori, och XFOIL

This study presents a methodology that enables the annual average power of a wind turbine to be increased by automatically optimizing it?s airfoil, twist and chord dis- tribution. As a part of the study the software SiteOpt has been developed. This software connects the open source software XFOIL with the blade element momen- tum theory. XFOIL gives lift and drag coefficients which enable the blade element momentum theory to predict the power of a wind turbine at different wind and ro- tational speeds.

Nervmobilisering som sjukgymnastisk behandlingsmetod

Background: Nerve mobilisation is a controversial subject which has undergone great development in recent decades. Nerve mobilisation is based on a concept of both examination and treatment of the nervous system. Purpose: To study nerve mobilisation as a treatment in physical therapy with emphasis on evidence regarding the method. Method: A literature review. The search was made through the databases: PubMed/Medline, Academic search, PEDro and CINAHL/webspirs.

ISIT-modellen : Vägledning för att realisera en verksamhets informationssäkerhetsmål

The ISO standard ISO/IEC 17799/SS-627799-2 is a guidance for organizations to realize their information security goals. In spite of this standard, studies show flaws regarding information security in organizations. In particular flaws regarding overall view, knowledge and clear roles and responsibilities have been observed. The ISIT (Information Security Integrated Three level) model and its guidelines, developed in this thesis, help organizations to identify the required processes and procedures as well as the logical process flow. The thesis is based on theoretical studies and a case study within a multinational company.

Passande svårighet? : Spelares uppmärksammande av och attityder till dynamisk svårighetsjustering

Syftet med detta arbete är att undersöka hur dynamisk svårighetsjustering påverkar hur spelare värderar ett spels svårighet, presterar under en spelsession och huruvida de kan upptäcka ett system för sådan justering samt identifiera hur det fungerar.  Arbetet vilar främst på Robin Hunickes arbete kring dynamisk svårighetsjustering men vidrör även koncept som svårighet, flow och olika typer av svårighetsjustering. För att undersöka huruvida system för dynamisk svårighetsjustering påverkar spelande har ett plattformsspel utvecklats och speltestats i två versioner av en handfull respondenter, en version som justerar svårigheten i spelet dynamiskt och en som balanserats för hand. Resultatet från dessa speltester ger inga direkta stöd för att dynamisk svårighetsjustering får spelare att prestera bättre och tyder på att spelare vid en första spelomgång har svårt att identifiera system för dynamisk svårighetsjustering. Resultatet visar dock även på att mer undersökningar kan behövas på ämnet i framtiden..

<- Föregående sida 12 Nästa sida ->