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1668 Uppsatser om Automatic snow depth measurements - Sida 52 av 112
Generiska strategiers påverkan på köpbeteenden - En studie av kunderna till två livsmedelsbutiker
Due to the well-developed rhetoric and the relative easiness to estimate costs, cost considerations are usually more in-depth than revenue considerations when discussing strategies impact on profitability. To avoid dysfunctional companies and poorly judged strategy decisions it is necessary to develop the rhetoric of revenue considerations.By collecting data from 230 respondents in a quantitative study of two grocery stores in Mora, the study aimed to assess the relationship between choice of generic strategy and self-reported buying behavior, considering differing decision-making processes of customers.The results of the study indicate that a differentiation strategy performs better than a low-cost strategy in terms of buyer frequency, number of goods and cost of purchase. However, due to a poor data collection method, the results are weak, and should therefore be questioned. The study indicates that reliability considerations for behavioral measures should be treated in the same respect as psychological measures, and therefore illuminates the need for new methods and measures to be developed..
Tjuvögon och långskallar : Skolpersonals beskrivning av erfarenheter och ansvar kring barn med sociala problem
The purpose of this study was to investigate how pupils with social dysfunction were defined and described and how the responsibility of the school concerning the needs of these pupils was apprehended. For this matter, in depth interviews with four headmasters and four teachers at three different schools were carried out.The possibilities to help pupils with social dysfunction were regarded as limited due to limited resources. The school can be described, as a huge refined apparatus of classification where some children very early are eliminated and there does not appear to exist any back up plan for these individuals. In this respect the function of the school is very similar to that of yesterdays school where the elimination process worked just as well, the denotations change but the problems remain the same.The material used in this study is too small to make general conclusions but the results give some indication of the problems of the interaction between the school and its staff and pupils with social dysfunction. We strongly believe that the results warrants further investigation as to in what way the school can improve in helping pupils with social dysfunction..
Modellbaserad ekoföljning i vätskefyllda tankar
This thesis discusses model based tracking of radar echoes in tanks with liquid content. The errors in the measurements are not always random in these cases, and the interference that occurs when nearby echoes moves in relation to each other makes tracking difficult. The tracking problem can be broken down to four parts; track initiation, track destruction, association of the measured echoes to the tracks and to update the tracks with the associated echoes. The radar measurement is primarily made on the surface. However, additional echoes from the tank floor or other structures and double bounces are normally present.
Energieffektivisering på Skutskärs Bruk : Varvtalsstyrning till utvalda pumpenheter på Blekeri 4
In modern society in terms of economics and environmental impact, it is important to ensure that a company is as energy efficient as possible to reduce the amount of energy used. About 10 TWh of electricity used annually to pump drives in Swedish industry. Therefore, pumping system has great potential for energy savings.The objective of this report was to determine how much energy and money that can be saved with the insertion of variable speed drive to six pumps on Bleach plant 4 in Skutskär Mill. The work was performed with electrical measurements during one week, analysis of pump curves and the compilation of production data over a year.The results show that four of these six pumps were profitable and yielded an annual saving of 1172 MWh of electricity and 560 000 SEK. With an economic lifetime of 10 years and a discount rate of 6.8% the final result for the entire life-cycle savings became 3 355 000 SEK.
Änglabarn : Föräldrars upplevelser av att förlora ett barn i sjukdom
Background: When a parent loses its child life will change drastically and assume other conditions. The loss of a child affects the whole human existence, the grief can be very intense as well as in-depth and find expression both on an emotional, physical, mental and spiritual level. Aim: The aim is to describe parents? experiences of losing a child to illness. Method: Graneheim and Lundmans manifest content analysis method was used to the method based on qualitative raw material in forms of three Swedish autobiographies.
Modellbaserad temperaturregleringav partikelfiltrets regenereringsprocess
Due to increasing regulations regarding new diesel vehicles particulate matteremissions the new Scania truck, Scania Euro 6, has been equipped with a particulatefilter. This component effectively stores the particles in the exhaust gas but must becleaned in order to prevent itself from clogging. The filter is cleaned through aprocess named regeneration which is a thermodynamic process in which thetemperature of the filter is raised through fuel supplied to the exhaust gas.The purpose of this thesis is to contribute to the development of improved controlstrategies of the temperature during the regeneration process through thedevelopment of model-based controllers. These controllers are designed in order tohave good performance in stationary as well as automatic regeneration.In order to develop these model-based controllers a model of the system isconstructed. The model is described as a linear thermodynamic grey-box model withflow varying parameters, showing good results in validation.The model provides a simulation environment during the controller design, which isfocused around the development of linear regulators with the exhaust gas mass flowas a scheduling variable whose size determines controllers? mode of operation.
Design och förädling av en liten och kustnära trädgård :
2. SUMMARY
A small garden exposed to a harsh coastal climate can be difficult to design. Limitations in space and in plant varieties increase the needs of an in-depth knowledge to achieve wanted goals.
In this degree project the challenge has been to create a functional and position adapted garden for a very small beach house lot in Mölle, a little harbour village at the south coast of Kullaberg. ?Villa Malm?, is situated directly on the bedrock in a close settlement where the gardens, in most cases are very small and exposed to strong salty winds.
Hur stor areal äldre skog lämplig för trakthyggesbruk finns det på Gotland 2013?
The degree project at hand investigates how large areas of older forest (80 plus years) suitable for clear cutting there is on the Swedish island of Gotland. Large areas of older forest on Gotland are situated on land with shallow soil depths which are economically uninteresting and often unsuitable for clear cutting forestry. Other forests hold big nature conservation values and should not, or cannot, be used for forestry purposes.
The survey is made as a GIS analysis based on the old but carefully made ?Brief forest inventory? (ÖSI) made in the 1980s and early 1990s. A sample from the inventory is combined with studies of orthophotos, satellite photos and other GIS layers that display estimated soil depth and nature conservation values.
Partly contrary to common belief, the survey shows that there are still large areas of older forest suitable for clear cutting forestry on the island.
När Arktis isar smälter tinar världen upp? : En kvalitativ analys av det vidgade säkerhetsbegreppet i den svenska strategin för den arktiska regionen
This study is called When the ice of the Arctic melts is the world defrosting? and written by Rebecca Fröling.The purpose of the study is to investigate how the concept ?security? is used in the Swedish arctic strategy and why the concept is described in that way. The debate of the concept ?security? has been going on for years, but the debate is still present today. What we put in to the concept is operative for how we regard and discuss security and security politics.To analyze the strategy I used two theories, one with a traditional approach and one with a critical approach to security: Realism and Copenhagen School.The method that has been applied to the study is qualitative content analysis, to be able to analyze the text on the depth.
Avståndsmätning med Hög Noggrannhet till Låg Kostnad
Active sensors are used a lot in the society and industry, for example to gain better control over processes or to get proximity sensing features in different products. Within industry there is great interest in developing safe automation products that can be controlled with high accuracy but still at a low cost.The goal of this project is to develop a prototype of a non-contact rangefinder that measures distance using infrared light. The sensor is to be used for various applications in industries with relatively high accuracy and be compact, but at a low cost. By implementing a rangefinder into a product, more accurate detections of an object?s presence can be done.In this project a new distance sensor, EPC600 from ESPROS, was used.
Design och konstruktion av laborationsutrustning till en kraftelektronikkurs
The purpose of this degree project was to build laboratory equipment for a new course in power electronics that starts this autumn 2010 at Uppsala University. The equipment is intended for student labs and it covers the most important areas of the course including rectifying, buck-/boost-converters and PWM-modulation. It is built as one sealed unit where all the electronics are built-in but visible and it has a connection board where students safely can connect the different circuits. The project has advanced from theoretical studies of circuit design, choosing of components and simulations to drawing the printed circuit board (PCB), soldering, case building, final testing and troubleshooting - basically most steps from an early idea to a final product. Measurements on the final product gave about the same results as the earlier simulations of the circuits and the result is overall satisfying..
Objektspecifik möbeltextil
My project aims to understand more about the methods used in making woven textiles on an industrial level, and how these tech¬niques can be adapted to create object-specific pieces. On visiting the furniture fair in Stockholm, I was surprised to see that most of the textiles used for furniture were so similar, despite the variation in the furniture itself. My project is about creating textile patterns that are specific for each piece.The idea behind the process could be used for any product, but the pattern I created is specifically for the armchair Accent by Yngve Ekström. I wanted to create the feeling of a pattern moving over the surface of the object and adjusting to it. I worked primarily with differences in density.
Automatiserad inlärning av detaljer för igenkänning och robotplockning
Just how far is it possible to make learning of new parts for recognition and robot picking autonomous? This thesis initially gives the prerequisites for the steps in learning and calibration that are to be automated. Among these tasks are to select a suitable part model from numerous candidates with the help of a new part segmenter, as well as computing the spatial extent of this part, facilitating robotic collision handling. Other tasks are to analyze the part model in order to highlight correct and suitable edge segments for increasing pattern matching certainty, and to choose appropriate acceptance levels for pattern matching. Furthermore, tasks deal with simplifying camera calibration by analyzing the calibration pattern, as well as compensating for differences in perspective at great depth variations, by calculating the centre of perspective of the image.
Avblås för torkning av kabel
This report is written on the assignment by Nexans IKO Sweden AB in Grimsås which is a cable manufacturing company. Nexans IKO Sweden AB was in need of help to examine possibilities for saving energy by saving compressed air, in first place by using the compressed air more efficient. The task was to determine the present situation, making the airwipe stations more efficient by reducing the consumption of the compressed air and in turn save money. Even the aspects of the working environment were discussed as the noise levels from the pneumatic systems and engines are usually high. A schedule over the airflow in the factory and the inventory over current airwipessituation was made.
A First Effort to Visualize Knowledge of a Region? A visualization of Öresund & Shenzhen in the perspective of Knowledge Innovation Zone
We have through our theoretical framework been able to create a simplified measuring tool for a KIZ; the S-TKL. We have found that the S-TKL is possible to implement on the Öresund Region but with some flaws. Even though the Öresund Region has implemented the mindset of a KIZ, accurate statistics are in some areas hard to find. We can also through our empirical findings say that it is difficult to use the S-TKL on Shenzhen. The data we have found gives a good indication of both of the regions.