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419 Uppsatser om Robot dynamics - Sida 21 av 28
Koordination i förändring : En balanserad historia om kunskapsintensiva företag
Background: The dependency on knowledge and competence today is more critical than earlier. Today, companies need to put more effort into identifying and filling knowledge gaps, which can be achieved through mergers and acquisitions. It is important that the companies succeed in coordinating their operations after this process of change. Out of a theoretical point of view it can be argued that companies need to balance between different coordination mechanisms that result in standardized and flexible coordination respectively. Purpose: The purpose of this Master Thesis is, in the context of a merger, to investigate and analyze which coordination mechanisms that are used in knowledge-intensive companies, how these coordination mechanisms are combined and what explains the chosen combination.
Uppskattning av Ytkurvatur och CFD-simuleringar i Mänskliga Bukaortor
By applying a segmentation procedure to two different sets of computed tomography scans, two geometrical models of the abdominal aorta, containing one inlet and two outlets have been constructed. One of these depicts a healthy blood vessel while the other displays one afflicted with a Abdominal Aortic Aneurysm. After inputting these geometries into the computational dynamics software FLUENT, six simulations of laminar, stationary flow of a fluid that was assumed to be Newtonian were performed. The mass flow rate across the model outlet boundaries was varied for the different simulations to produce a basis for a parameter analysis study. The segmentation data was also used as input data to a surface description procedure which produced not only the surface itself, but also the first and second directional derivatives in every one of its defining spatial data points.
Masterplan för svetsavdelning : Förstudie
Det här examensprojektet har utförts på Volvo CE, Hauler & Loader Division, Arvika. Projektet ingick som ett avslutande moment i maskiningenjörsprogrammet vidKarlstads universitet. Volvo i Arvika tillverkar hjullastare vilket man har gjort sedan mitten av 60-talet. Fabriken har idag ca 1150 anställda som tillsammans levererar över 6000 hjullastare per år.Produktionsvolymen i Arvikafabriken ökar allt mer vilket medför att ett behov av många investeringar för att klara denna volymtillväxt har uppstått. Den huvudsakliga tillverkningen på svetsavdelningen består av fram- och bakramstillverkning.
Studie av mobilt integrerat navigationssystem
Saab Bofors Dynamics har som huvudsaklig verksamhet att utveckla missiler. Ofta krävs det att någon form av navigationsfunktion byggs in, och eftersom det inte är lätt att testa nya lösningar och algoritmer direkt på missilerna har man tagit fram två autonoma testplattformar, Freke och Gorm, i form av självgående bilar som kan ta sig fram inomhus i t.ex. en korridor.För navigation utomhus lämpar sig GPS väl i många situationer, men i autonoma sammanhang är det inte tillräckligt. GPS är inte alltid tillgänglig på grund av att man inte alltid har fri sikt till minst fyra satelliter och i militära sammanhang är den också lätt att störa ut. Därför förlitar man sig hellre på noggranna tröghetsnavigeringssystem (TNS) som kan ge data i 100-tals Hz, och kompletterar med GPS för att korrigera för avvikelser.
Population and management models for the Swedish wild boar (Sus scrofa)
The wild boar Sus scrofa population in Sweden has increased rapidly in the last decades which has led to conflicts among stakeholders, for example due to crop damages in agriculture. Thus, there is an urgent need of quantified goals and effective strategies for wild boar management. To develop such strategies, knowledge on population dynamics is fundamental. In this study a deterministic matrix model was used to estimate population growth, based on previously published data. The exponential growth rate for a wild boar population was calculated to 1.48.
En studie av retentionen i floden Oder och dess avrinningsområden, Polen.
Nutrient enrichment is the main cause of the increasing eutrophication process in the Baltic Sea during last century. A prerequisite counteract this process the load of nutrients to the Sea must be investigated. The large contribution of nutrients to the Sea is caused by emission from the rivers within the drainage basin. For the total emission of nutrient into the Sea the retention process in the rivers has big influence. This process in the river system has been assumed as a not important part of the nutrient cycle.
Nationella identiteter i det återförenade Tyskland En studie om hur fyrtio års separation av den tyska nationen i BRD och DDR har påverkat den tyska identiteten
Abstract (magisteruppsats, 61-80p)This paper is concerned with the national sentiments in the Federal State of Germany,regarding the east- and west-German cleavages, since the unification of the country in 1990.The point of departure is the nationalistic theory crafted together by the scholar AnthonyDavid Smith, which implies an ethno-symbolistic perspective on the dynamics of nations.The main question in the paper is to which extent you can consider the East- and WestGermans to be a unity, considering the past and the forty-year-division. For this reason theauthor basically uses two different sources: scientific books and the German journal DerSpiegel.Founded on Smith's theory, the study contains a broad explanation for national identities incontemporary states, which ranges from pre-modern times, when the ethnic communities werecreated, to the national world of today.The discontinuity of the German case, represented by the separation 1949-90 of the Germannation into two entirely different societies, makes it possible to draw conclusions about whichfactor that has the pivotal impact on national identities.The result turns out to be that the national historical core-values and symbols of the currentGerman state and nation are more profound than the splitting national sentiments. Thus theGerman nation is likely to recover from its Cold War break-up.Keywords: German unification, A. D. Smith, Nation and nationalism, National identity, DerSpiegel.
Fysikalisk modellering av klimat i entreprenadmaskin
This masters thesis concerns a modeling project performed at Volvo Technology in Gothenburg, Sweden. The main purpose of the project has been to develop a physical model of the climate in construction vehicles that later on can be used in the development of an electronic climate controller. The focus of the work has been on one type of wheel loader and one type of excavator. The temperature inside the compartment has been set equal to the notion climate. With physical theories about air flow and heat transfer in respect, relations between the components in the climate unit and the compartment has been calculated.
Värme & El med Stirlingmotor
En billig och robust motor av stirlingtyp har konstruerats för användning i
villor. Som energikälla används de heta rökgaserna från förbränningen i husets
panna. Motorn driver en generator i permanent drift under den kalla delen av
året då värme- och energiförbrukningen är som störst i vårt land. Under den
varma årstiden finns den tillgänglig som reservkraftverk.
Tanken är att stirlingmotorns värmare ska placeras i en villapanna för att ta
till vara exergipotentialen hos dess höga temperatur.
Utvärdering av ett system för Rapid Control Prototyping inom området robotstyrning
In this report a system for Rapid Control Prototyping, RCP, is evaluated through animplementation of the motor control methods Field Oriented Control, FOC, and Space VectorPulse Width Modulation, SVPWM. The evaluation emphasizes on time-consumption andresource utilization on the used hardware and on usability for of software.A new mechatronic laboratory is under development at ABB Corporate Research in Västerås. Itwill be used for both mechanical and motion control design using existing and new hardware.The control structure in a traditional robot system will be interfaced to a rapid prototypingsystem which should allow easy changes to algorithms at different levels in the system.The system designated for this project comes from National Instruments and constitutesLabVIEW Real-time and FPGA module as the software tools. The hardware is a NI Single-Board RIO (Reconfigurable Input Output), sbRIO, development board including a Field-Programmable Gate Array, FPGA, from Xilinx and a microprocessor from FreescaleSemiconductor. Graphical programming is performed in the LabVIEW environment, andthrough Xilinx tools the LabVIEW FPGA code is compiled to VHDL code.A pre-study was carried out to clarify the concept of RCP and investigate different systems forRCP and their traits.
The Value of Relationships in a Chinese-Western Business-to-Business Context: An Investigation on Relationship Bonds, Adaptation, Trust and Commitment
The purpose of this study is to improve the understanding of the dynamics behind Chinese-Western buyer-supplier relationships. The study takes on a partially inductive approach by commencing with exploratory in-depth interviews. The main body of the study consists of a cross-sectional survey. Data has been collected through an on-line questionnaire. The theoretical review consists of industrial relationships with specific accounts on the role of adaptation, trust and commitment; a stream of literature in cross-cultural relationships deriving from Hofstede?s culturalist legacy with specific reference to Chinese-Western relationships, including studies on relationship bonding, and the role of guanxi.
Validering inom omvårdnadsprogrammet på tre vuxenutbildningar i Östergötland
This study investigates how social interaction affects newly arrived pupils? views on their study situation in the Swedish educational system. The aim is to give a contribution to the discussion on the notion of including ?the Other? in educational practice in multicultural schools. Semi-structured group interviews were conducted to explore how the intercultural perspective and the theory of inclusion can be used to explain the dynamics of social interaction.
?Vi och dom? : ett fenomen i utlandsstyrkan?
En framgångsfaktor vid internationell tjänst är att samspelet mellan samtliga enheter fungerar friktionsfritt. Detta underlättas om samtliga enheter känner varandra innan rotation till missionsområdet. I framtiden kommer hela förband som har kontraktsanställda soldater rotera ner, dock innehar inteförbanden samtliga funktioner för att lösa alla arbetsuppgifter i missionsområdet. Vid dessa fall lånar man in enheter från andra förband. Inlåningar kan skapa friktioner mellan enheterna.
Att arbeta med Scrum : Påverkan på arbetslag, kommunikation och social miljö
Systems development methods has always been an important part of the systems development process. It affects not only the product, but also the organization itself. Today more and more companies are abandoning the more rigid traditional methods for the more flexible agile ones. A transition like this is bound to affect the product and the organization, but in what ways? Is it a difficult transition to make, and how does it affect social environment and dynamics? Does it change how people communicate information to each other? This study was conducted at a local branch of a larger international IT-company.
?Jag ville faktiskt hoppa av programmet? - Erfarenheter av rasism diskriminering bland socionomstudenter
This study investigates and analyzes experiences of discrimination and racism among social work students, focusing on how these issues occur between peers rather than through hierarchical dynamics, such as interactions with faculty. The research aims to shed light on the academic challenges faced by students with foreign backgrounds, as defined by Statistics Sweden (SCB), particularly those who experience discriminatory practices and behaviors within the academic environment. The study adopts a qualitative methodology, utilizing semi-structured interviews to explore the lived experiences of these students. Participants were selected based on their enrollment in social work programs and their identification as having a foreign background. Data was analyzed thematically to uncover recurring patterns and insights into the participants' experiences.