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419 Uppsatser om Robot dynamics - Sida 12 av 28
Kampen mellan etablissemang och näthatare - En studie om näthatsdebatten
This essay examines the Swedish debate on Internet hate with focus on theories concerning Internet as a public sphere, sociocultural turbulence and subaltern counterpublics. Examining material fromnewspapers, alternative news media and discussion forums, with an hermeneutical influenced method, the task is to understand the Internet hate debate, and the study wishes to discover its relations to biggercontexts, such as social transformations and power dynamics. The conflict evolves between the establishment (journalists, writers, politicians et cetera) on one part, and Internet ?haters? on the other.The examined theme also shows a conflict where the two combatants show not only two opposite views on what Internet hate is, but also shows two different conceptions of the world..
Föränderliga stadsrum : flexibilitet, dynamik & interaktivitet
The number of inhabitants of the towns and city centers have generelly increased, concurrent as the population in smaller towns has decreased. In Stockholm, the migration is very fast and here is also the most populous place, if one compares with other Sweden.
In order to respond to the increasing population and the pressure they put on city spaces has Stockholm's town a town building strategy that says "build inwards". It means that one stem seals the town with spaces and business activities in central locations.
The increased population in the towns and the densification of buildings leads however to an increased pressure on parks and public places.
Möjligheter att minska kväveutlakningen genom att anpassa kvävegödslingen till variationer inom stråsädesfält
Due to excess precipitation that cause runoff, all soils in Sweden naturally leaches nitrogen.High leaching from arable land is an environmental problem when the runoff reacheswaters. In the international agreement, Baltic Sea Action Plan, the aim is to reduce therunoff of nutrients. Sweden has agreed to reduce its load of e.g. nitrogen to the Baltic Sea.One of the proposed measures is an increased use of site-specific N-fertilization, which hasbeen shown to increase nitrogen use efficiency and therefore also reduce the nitrogen runoff.Either yields are increased with the same total amount of nitrogen, or the total quantityof nitrogen is reduced with preserved yield levels, which is profitable for the farmers.The dynamics of nitrogen leaching differs between top dressing applications above orbelow the economical optimum. There is a consensus about a difference in the dynamics,but not about its magnitude.
Framgångsfaktorer i integrationen av elever med särskilda behov i den allmänna skolan
The purpose of this paper is to identify and analyze success factors in the integration of students with special needs in regular schools. This will be done through the case study of a nine year old autistic student in a small town public school ? a fairly representative case for the Swedish school system. The data collection methods used in the paper are; three participant observations of the student, and a qualitative interview with two of the student?s teachers.
Missilstyrning med Model Predictive Control
This thesis has been conducted at Saab Bofors Dynamics AB. The purpose was to investigate if a non-linear missile model could be stabilized when the optimal control signal is computed considering constraints on the control input. This is particularly interesting because the missile is controlled with rudders that have physical bounds. This strategy is called Model Predictive Control. Simulations are conducted to compare this strategy with others; firstly simulations with step responses and secondly simulations when the missile is supposed to hit a moving target.
Pneumatiska artificiella muskler : med hjälp av en robotarm
According to the study [1] several firefighters are killed in action each year. This happens naturally in various ways. One of the major factors is that firefighters often do not know how the environment looks like, for example that a building in an industrial area contains hazardous gas cylinders. Without a solution, fire-fighters will continue to die in duty. It is therefore important to solve this problem so that we can minimize the risks and save lives.The goal of this project was a control system for pneumatic artificial muscles.
Styrelsearbete över tid - En studie av företagsutvecklingens påverkan på styrelsearbetet i ett onoterat svenskt familjeföretag
In this study we have focused on how board work is affected by companies growth and development. This research has been conducted through a case study of Teleopti AB, a private Swedish family-owned company, together with theory and literature studies. We have studied the development of Teleopti since its founding in 1992 until today and what impact this company's development has had on Teleopti's board work and composition during the same period. Through the study we came to the conclusion that Teleopti's board work has gone from being supportive and advisory to more professional with a higher degree of board involvement. This change has been caused by the reduced information asymmetries, the increased need for board's expertise, the new board dynamics and the CEO change caused by the company's growth..
Värdeskapande i nätverk
The purpose of this thesis is to examine value creation in networks. Based on a case study of Livebookings Network, an online booking service. This thesis has an explorative nature. As a theoretical framework we use theories on value and network dynamics. By combining these theories we develop an operationalized framework that we use to analyze our empirical findings.
Kontanthantering i förändring : En fallstudie om samarbetet i strävan mot att minska kontanthanteringen i samhället.
This study examines a case of cooperation between banks, commerce, police and the municipality of Skövde, which in a project has the target to reduce the use of cash by 15 % in the city during 2011. The purpose of this study is to increase the understanding of the importance of cooperation in which different actors come together to reach a common goal, such as speed or interfere with an ongoing change, while they must meet their own interests. In this study the case of cooperation has been studied by using a qualitative approach. The methods used in this study are participant observation and a group interview as well as personal interviews. The theories underlying the study revolve around the concepts of collaboration between organizations with similar interests, changes in society, conflict and resistance to change..
Traditionella och interaktiva representationer : En jämförande robotstudie.
Detta arbete tar upp och diskuterar det eventuella användandet av representationer i en autonom robot kontrollerad av ett extended sequential neural network (ESCN). Diskussionen utgår från en tidigare distinktion, framförd av bl.a. Bickhard och Terveen (1995), mellan traditionella representationer, som förespråkas av kognitivismen, och interaktiva representationer, som förespråkas av många företrädare för en mer förkroppsligad och situerad syn på kognition. Resultatet i detta arbete visar att det är möjligt, med hänvisning till robotens interna tillstånd, att påstå att roboten inte använder sig av representationer i någon traditionell bemärkelse. Resultatet visar vidare att det är möjligt att hävda att roboten använder sig av interaktiva representationer.
Har musik betydelse för studieresultat
The purpose of my study is to examine if the total study results differ between music classes and regular classes. Are there higher grades in music classes? If so, what are the causes for this? I chose to make an inquiry at two schools in different town districts, with music classes. At those schools I also collected data of pupils grades, and was informed by the principals and the music teachers about the activities. The number of respondents were ninety.The inquiry showed that the grades were markedly better in music classes, and that you can see great differences in well-being, parental engagement and ambition level, compared to regular classes.
En situerad ansats för utvecklingen av en räknande robot
Den situerade ansatsen inom artificiell intelligens har i tidigare experiment visat på stora möjligheter vid utvecklingen av enkla beteenden. Ansatsens framgångar är dock inte lika tydliga när det kommer till utvecklingen av mer komplexa beteenden som i högre grad påminner om de experiment som gjorts inom traditionell artificiell intelligens. I studien utvecklas en agent med ett ?Extended Sequential Cascaded Network? som kontrollarkitektur för att lösa en uppgift som kräver ett ?räkneliknande beteende?. Utvecklingen av nätverket grundas på en situerad syn på kognition, däribland att designern i så liten grad som möjligt skall styra utvecklingen.
Reformation of the credit rating industry - Is there a need?
The credit rating industry is a complex and fascinating industry. Its history stretches back more than 150 years and has gradually increased in importance. During its history the dynamics of the industry have changed. The extended-principal-agent model was developed by synthesizing different principal-agent-relationships into one model. This model provides a holistic understanding of the credit rating industry and illustrates the interdependence between the different relationships.
Ledtidsförkortning vid produktion av kundanpassad robot
Verkstadsföretaget System 3R i Vällingby tillverkar den kundanpassade roboten WorkPartner 1+ sedan september 2011 och önskar sänka ledtiden för tillverkningen. De vill även öka produktionstakten från ca fyra till sex robotar per månad. För att lyckas med detta måste processerna för att ta fram och montera roboten effektiviseras. Fokus för studien är att eliminera slöserier och effektivisera planering, inköp och montering. Under studien kartläggs de olika processerna, därefter analyseras nuläget och slutligen läggs förslag fram på hur dessa processer kan förbättras.
Automatisk trimning av en flexibel manipulator
Dagens industrirobotar är mycket mer komplexa än vad de var för några år sedan. Regleringen baseras på matematiska modeller och för att prestandan ska var lika bra eller bättre än förr krävs det att modellerna är anpassade till individen. Det krävs därför att modellparametrarna justeras för att stämma överens med den aktuella roboten.Rapporten handlar om hur de flexibla modellparametrarna ska trimmas för robotens leder så att verktygets svängningar minskar. På grund av att en rörelse på en axel påverkar de övriga axlarna, blir detta ett sexdimensionellt minimeringsproblem. Detta kan dock lösas genom att låsa vissa leder i olika positioner och på så sätt delas minimeringen upp i flera steg med som mest tre variabler att minimera över.