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3822 Uppsatser om Affect of light - Sida 44 av 255

Optimering av ultraljudssändare- och mottagare avseende räckvidd, strålningsvinkel och energiförbrukning

Embedded Systems Lab at Umeå University is currently part of a research project with the purpose to examine the behavior of dairy cows inside a barn. Each cow needs to be tracked with a precision of 50 cm, and since GPS-technique has poor functionality at indoor environments, an indoor positioning system needs to be developed.Embedded Systems Lab has already developed an indoor positioning system using IR-light and radio, but since this system demands extensive infrastructure and is rather expensive, an alternate positioning system using ultrasonic pulses and radio is being examined.In this report the range, beam angle and current consumption of ultrasonic transmitters- and receivers are investigated. Three different driver stages for the transmitter is tested, and two amplifier solutions for the receiver. The report also describes how the length of the transmitted ultrasonic pulse affects the received signal, accessibility of a ?shadowed? signal, and the effect of different sound frequency..

DV01 / Ett cykelkoncept

DV01 is a bicycle concept aimed towards a contemporary target group, that considers the bicycle to be both a convenient means of transportation and a product with a high aesthetical value. A bicycle is for many people something that you attach to your own personal style, were not only the bicycles function but also its appearance plays a crucial role. It is also a product that consists of many different components and parts, which all affect the overall impression. The focus of the project has therefore been about finding a balance in the design. When form and function interact in a successful symbiosis, the result is often that the product may last longer and are more loved by its users..

Det medeltida Visby : en kritisk studie av disskusionen om stadens etablering

Visby is a city that at first glance is of medieval origins. The popular image of scientists today is that the city was formed in the Middle Ages. According to some of the researchers Visby was formed during the Viking Age, it is based on the basis that the area has been used for a long period. Urban development in the Nordic countries is complex and there are different opinions as to why the Nordic cities emerge. It is important to shed light on the underlying process on why cities are emerging to provide clarity as to why Visby city is emerging.

Du är vad du publicerar : En studie om svenska resebyråers kommunikation på Facebook.

Facebook has over 665 million users worldwide and has created a new venue for companies to interact with their stakeholders. However, since it is a new phenomenon it brings some uncertainty and confusion as how to manage the communication on Facebook, and it is only recently that research and literature has become available on this topic.The purpose of this study is to investigate how three chosen companies within the travel industry communicate on Facebook. We also compare the results to the existing literature to see how they can improve from a theoretical point of view. We thereby hope to shed a light on, and add knowledge to, a research area where we have identified weaknesses. In order to fulfill our purpose, we used a quantitative content analysis as well as qualitative interviews.The major findings in our study on Facebook communication include a lack of strategy and target audience awareness, as well as a self-centered communication.

Växtdatabas med sökmotor :

My work has resulted in an interactive search engine for plants that can be found at www.plantit.se. In the work process I have searched for which search criteria is most important when doing searches on woodland plants. I have done this by an analysis of existing databases and with an survey where leading plant expertise answered questions about woodland plants. I analyzed three search pages that are on the internet today Havenet.dk, Backyardgardener.com and Den virtuella floran. I concluded that there are several flaws but also many positive aspects that I have used when developing the interface of my page. The survey resulted in the basis for my search criteria the answers listed the most important factors when planting woodland plants. From this information I developed a system with five values on every criteria.

Psykosocial hälsa i samhällsplanering: en litteraturbaserad studie om kontextuella och kompositionella faktorer i bostadsområdet

ABSTRACT: Introduction: There are intentions from the Swedish government to provide guidelines and tools for a healthy social planning. The field is in a Swedish context relatively unstudied regarding psychosocial health and the neighbourhood. Aim: The study aimed to examine how social planning can affect the health of individuals. The focus areas were contextual and compositional factors related to individuals' psychosocial health and the contextual risk- and health factors that exist in the neighbourhood. Method: A literature-based study was conducted and 15 scholarly articles form the basis for analyse.

1-D Modellering av Piezoelektrisk Injektor

A piezoelectric injector was modeled, in this Master Thesis Project which was carried out at Scania CV AB in Södertälje, in GT-Fuel. GT-Fuel is simulation program from Gamma Technology.The simulation model for the piezo injector was divided into a hydro-mechanical system and an electrical system (Piezoelectric element). First the hydro-mechanic model was duplicated from Advance Continuous Simulation Language model (ACSL). The simulation results were then compared to the ACSL, to verify that the hydro-mechanical system was modeled correctly. The simulation results for the electrical model were also compared with a Simulink model.

Nätet spinns vidare : Hur används Internet i ungdomsromanen?

The essay is a text centred study of ten Young Adult Novels, in which Internet plays an essential part. The structure is put into light out of used narrative techniques of how to create stories and its construction elements. I compare the ten Young Adult novels to each other. My aim is to analyze the functions of the Internet motive in the chosen novels, using different approaches, and enlighten it with concerns to the new phenomenon that Internet is in society. Consequently the essay will also have a mimetic touch to it.The ten novels that I base the analysis on are written of both med and women and have both male and female as main fictive persons, and are from different parts of the world.

Produktionsutveckling av bastuaggregatsavdelning

To invent an optimized product is a complicated process. This process is only half of the work. It is equally important to develop a production system that can produce the product in an  efficient and ergonomic way.After several evaluations of conceptual and detailed drawings a final idea has come to light.The idea intends, to the maximum extent, utilize the facility in a more efficient way through moving assembly lines and stations closer to the flock section and the stock for complete products. To make the production better, stations are placed in more logical places given the assignment they are supposed to accomplish. This improves the material flow radically.

Påverkar olika faktorer bilföretagen? : ? Hur påverkar ett högt oljepris, miljömedvetna marknader och ekonomiska trender bilföretagen?

The automotive industry is today in a world of globalisation and external factors can influence the car companies and it is important that they progress with the people. When an external factor, as the oil price, increases dramatically, it will affect the economies in different matters. Other external factors are impacted by the oil price, for example inflation, unemployment and target rates. In addition, people are changing their preferences due to the attention of the environment. With this as the foundation the problem of the essay were divided into three aspects.

Särskilt stöd eller individanpassad undervisning : en intervjustudie om lärares syn på barn i behov av särskilt stöd

This study is a qualitative study of two primary schoolteachers and two special teachers approach to children with special needs, and which procedures according to these teachers can be applied to support these children in their progress at school. Building on key concepts such as segregated integration, including integration, diagnostic and children with special needs. This was then analyzed with information collected from the four formal interviews.The study also sheds light on key concepts such as special support, diagnosis, segregated integration and including integration. The conclusion explains the concept of including integration as an approach that works well for both students with special needs in a short period of time yet also students with diagnoses. This is presented in the end of this study with different suggestions for a continued research on children with special needs..

Effektiv och användarvänligresursplanering i reklambyrå

It has become more common for organization to operate a lot of projects at the same time. These projects affect each other, either in way of resources or technical. Projects in a multi-project environment depend and affect each other, and in most cases they rival about resources, decision-makings and priority. To lead a project portfolio with several projects is a major challenge. The most common problems that occur are vague objective, unclear working conditions, resource shortage and problems of priority.

Tankar om plöjningsfri odling :

The margin in crop production is more and more less and it forces the producer to check out how to reduce the cost of establishment of new crop. One way to reduce the cost in establishment is to begin with plough less farming. It saves money and time compares to conventional soil preparation with plough and harrow. Not all soil types are god for plough less farming and should be continued with ploughing (mainly light soil), but other soil types working very well with plough free farming. If you want to success with plough less farming you have to think in new lanes. One of the things you have to think about is to not grow too much cereal after cereal. Low stubble is important when you harvest the crop and also to spread and chop the straw well. I have in this work interviewed some farmers and farm advisers in Östergötland to see which thoughts they have about plough less farming.

Degenerering av varumärken: - en juridisk konstruktion eller ett marknadsföringsproblem?

Degeneration of trademarks - a legal construction or a marketing problem? This paper discusses the issue of degeneration of trademarks. The study has its starting point in the conflict that may arise between the principles of marketing and the legislation concerning IP rights and market law. In this study several verdicts are studied in which degeneration has been addressed. Analyzing these rulings as well as the current legislation in the light of marketing theory, a conflict between marketing and legislation can be noted.

Ledarskapets inverkan på elevernas användning av IKT-verktyg på fritidsverksamhet

This essay deals with the influence of leadership on student use of Smart phones as an ICT tool at after school care. I use a qualitative, hermeneutical method that departs from two stories. I also use qualitative interviews with both structured and unstructured questions. My reflections and interpretations are, through the interviews, complemented by my colleagues? views of the use of Smart phones and how that is affected by how the activities are managed.

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