n/a

Spiderwort (Tradescantia virginiana) is a flowering herbaceous perennial. Little information is available about its production requirements. This project’s purpose was to determine fertilizer and PGR rates for high quality growth of Spiderwort in a greenhouse production setting. The first experiment screened three plant growth regulators (PGRs) at ascending rates on three T. virginiana cultivars. The most effective rates for height suppression were paclobutrazol at 120 mgּL-1, uniconazole at 45 mgּL-1, and flurprimidol at 45 mgּL-1. The second experiment was divided into two parts. The first screened three T. virginiana cultivars for their growth response to several nitrogen (N) rates. The second experiment used results from the first experiment and examined two cultivars response to a basic fertilizer. For experiment 1, N rates between 100 and 200 mg‧L-1 resulted in quality plant growth. The second experiment showed little difference between height, width and flowering of both cultivars with these N rates. Plant quality was similar for plants fertilized with 100 and 200 mgּL-1 N at the end of both experiments. The third study examined how fertilization rate affects the persistence of PGR growth control. PGR rates identified as effective in experiment 1 were used. Plants fertilized with 200 mgּL-1 N were taller than those fertilized with 100 mgּL-1 N, regardless of PGR treatment. PGRs did not suppress plant growth; plant quality was similar regardless of treatment. The results of these studies indicate that PGR effectiveness in suppressing plant height may be dependent upon season, with PGR application necessary only during the spring growing season. / Master of Science

This thesis aims to present a color segmentation approach for traffic sign recognition based on LVQ neural networks. The RGB images were converted into HSV color space, and segmented using LVQ depending on the hue and saturation values of each pixel in the HSV color space. LVQ neural network was used to segment red, blue and yellow colors on the road and traffic signs to detect and recognize them. LVQ was effectively applied to 536 sampled images taken from different countries in different conditions with 89% accuracy and the execution time of each image among 31 images was calculated in between 0.726sec to 0.844sec. The method was tested in different environmental conditions and LVQ showed its capacity to reasonably segment color despite remarkable illumination differences. The results showed high robustness.

NPR (Non-Photo-Realistic Rendering) is a new and quick-developed research topic in Image Processing. The main purpose of NPR is to generate pencil sketching¡Bwatercolor and oil painting, something different from photos, automatically by computer algorithms. On the other hand, there is another technique called PR (Photo-Realistic Rendering). The goal of PR is to generate real objects by computer algorithms, such as Matting or Inpainting. Furthermore, NPR includes two modes¡Gone is with physical model, researchers could write programs to simulate NPR by the properties of physical model. Without physical model, researchers could write programs to simulate NPR by their observation and deliberation. This thesis to the latter, there is no physical model in NPR. In the viewpoint of artists, drawing is performance of light and shadow. Then, in scientific, drawing depends on the degree of luminance. Luminance supports artists block and direction when drawing. Moreover, This thesis is mainly simulating oil painting with impressionist.

Syftet med studien är att studera vilken inverkan den urbana operationsmiljön har på förutsättningar att tillämpa manövertänkande. Manövertänkande är en del av den svenska operationskonsten och är inget nytt fenomen för vår nutid. Manövertänkandet kan spåras längre tillbaka i tiden när urbaniseringen inte var lika utbredd som den är idag. Det råder en stor enighet idag om att urbaniseringen kommer att fortsätta. Med en ökad urbanisering ökar även betydelsen av städer. Den ökande betydelsen av städer kommer leda till att nutida och framtida konflikter i huvudsak kommer att genomföras i eller i anslutning till urban miljö.Denna studie undersöker därför om manövertänkandet är relevant i nutida och framtida konflikter som i huvudsak kommer att genomföras i städer. För att kunna svara på frågeställningen så genomförs en teoriprövande fallstudie. Teorin som ska prövas är en skapad teori från essensen av Biddles, Linds och Leonhards teorier om manöverkrigföring. Fallen utgörs av slaget om Hue 1968 och Groznyj 1994–1996. Teorin prövas genom en mönsterjämförelse mellan teorins utmärkande drag och faktorer från fallen som påverkade utgången av striden. Mönsterjämförelsens resultat visar vilken inverkan den urbana operationsmiljön har på förutsättningen att tillämpa manövertänkande. Studiens resultat visar att den urbana operationsmiljön i huvudsak inverkar negativt påanfallande förbands möjlighet att i strid tillämpa manövertänkande. Den urbana operationsmiljön begränsar till stor del den anfallande sidans möjlighet att nå framgång med manöver eller rörelse.

No description available.

Improving color matching skills requires a specifically designed interface as much as well-calculated feedback on the underlying color model. This thesis relates to the production of a game for learning HSL and elaborates on learning patterns with regard to hue and game progression. A quantification of learning based on performance variation is proposed. In an effort to balance data quantity and relevance, several variables of pure analysis interest are defined. Results on learning inhomogeneities are presented through Hue Learning Curves with streamgraphs and detailed bar charts. The consequences of design choices and gameplay on performance and learning are discussed.

Master of Science / Department of Computing and Information Sciences / Mitchell L. Neilsen / The mobile world is rapidly changing: Smartphones have gone from portable messaging and email devices to streaming-video machines that surf the Web at blazing speed. Now-a-days a smartphone can provide computing capabilities, wireless communication capabilities, run software and perform other tasks just like any traditional computer. These amazing features of a smartphone and Open Source Android market helped in the development of this project. The purpose of this project is to develop an Android application for controlling various elements of user environment. User Controlled Environment is an Android application for home. The environment consists of smart lights, an Android mobile devices for playing music and a display. The application sends the user’s preferred settings to the environment and the respective settings are applied. The preferences are displayed on the screen. The user will be able to view and adjust a variety of environmental preferences. The preferences include the light’s color, light intensity, and the music. When the user exits the application the environment goes to a default state. The users can set preferences which include moods, seven colors of light, three levels of light intensity and songs that the users can select.

Grâce à l’informatique ubiquitaire, il devient possible d’avoir des environnements de plus en plus intelligents offrant de l’assistance ambiante aux activités de la vie quotidienne. Dans ce mémoire, un système d’assistance est présenté offrant une assistance ambiante personnalisée aux personnes âgées avec démence d'Alzheimer souffrant d’errance nocturne. L’hypothèse de départ est que la nuit, les personnes Alzheimer font de l’errance pour satisfaire des besoins précis même si elles sont incapables de les exprimer. Notre sujet s’intéresse à trois types de besoins dans le contexte d’errance nocturne : avoir faim, avoir envie d’aller aux toilettes et avoir besoin d’être rassuré. Un système d’assistance ambiante a été conçu et implémenté pour chacun. Ce système utilise un réseau de capteurs et d’effecteurs hétérogènes. Dans un premier temps, des données sur les routines de la personne atteinte d’Alzheimer sont collectées par des questionnaires et des capteurs. Ces données sont ensuite validées pour établir les scénarios d’assistance et détecter les épisodes d’errance. Dans un second temps, grâce au profil recueilli avec la participation du proche aidant, des règles sont conçues pour décider de l’assistance à fournir pour accompagner la personne à travers la satisfaction de son besoin, puis l’inciter à retourner se coucher sans toutefois la contraindre. De plus, une application tablette est mise en place pour offrir du contrôle sur l’activation de l’assistance. Cette application est confiée au proche-aidant afin qu’il puisse décider s’il préfère offrir sa propre assistance ou celle automatisée. Le système d’assistance ambiante développé recueille donc des données dans le domicile et offre de l’accompagnement à la personne tout en offrant plus de confort à son proche-aidant. Une expérimentation dans un domicile auprès d’un binôme composé d’une mère atteinte de démence et de sa fille a été réalisée sur une période de cinq semaines. Même si aucun épisode d’errance n’a été détecté pendant cette expérimentation, les données recueillies par les différentes sources ont été comparées à celles du système pour en établir la validité. Une reconstruction des événements a été possible avec les données collectées. Celle-ci permet d’observer les activités de la personne atteinte d’Alzheimer dans son quotidien. Cette approche pour obtenir le suivi des activités est applicable aux activités nocturnes permettant ainsi le suivi pendant l’errance s’il y’a lieu.

Sandy soils make up more than 205,000 ha in the coastal area of the North Central region of Vietnam. Thua Thien Hue province lying in the south of this region has predominantly sandy soils that cover almost 47,000 ha out of the 84,000 ha of cultivated land. Most of the population lives in the coastal area and people’s livelihoods are largely dependent on crop farming in these inherently poor soils. The objectives of this study were to provide extensive information on the soil and organic resources (including agricultural and aquatic sources) in the coastal area of Thua Thien Hue province, to assess the fertilization capacity of various organic materials when applied at different rates to soils for different crops and to make a diagnosis of the balance of main plant nutrients within the farms to assess possible risks of depletion in soils or of release to the environment. Soil characteristics were measured from a survey of 300 cultivated plots in seven villages scattered in the coastal area. All these light-textured soils are acidic and are very poor in organic C. Consequently, the cation exchange capacity is very low. Soil properties are linked significantly to the different cropping patterns. Farmers in the studied area use wide diversify of organic materials for various purposes. Very large variations in the content of major elements (C, N, P, K, Ca, and Mg) are observed in the organic samples. Crop yield and soil fertility increased following the rate of farmyard manure and organic amendment application. Organic amendments brought higher profit for rice and peanut growers in coastal sandy area. The highest fertilization efficiency was observed for pig manure in case of growing rice and peanut and goat manure for sweet potato. The most frequently used species of aquatic plants by local farmers are Najas indica, Vallisneria spiralis, Potamogeton malaianus plus various algae species. Najas Indica and Hydrilla verticillata showed the highest fertilization capacity. At farm level, the N, P, K balances in 10 studied farms were positive. More detailed N-P-K balances in 9 field plots indicated that N balance was largely positive for rice and sweet potato plots. P imports exceeded P exports in all studied plots, whereas K balance was always negative in 4 cropping systems.