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Dissertations / Theses on the topic 'Flower colour'

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1

Nasser, Naji Swadi. "Flower colour inheritance in zonal pelargoniums." Thesis, Swansea University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.507974.

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Elis, Mabon. "Evolutionary genetics of flower colour variation in Antirrhinum." Thesis, University of East Anglia, 2018. https://ueaeprints.uea.ac.uk/69572/.

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Phenotypic differences between species and populations can reveal much about how they have adapted and responded to a complex set of environmental cues. Studies have shown that genetic control of some traits is centralised to single genomic regions, while others are regulated at many unlinked loci dispersed throughout the genome. One trait that shows an enormous degree of variation between plant species is flower colour, and its tractability makes it an ideal trait for studying genetic differences underlying species differentiation. Antirrhinum majus has long been used as a model for studying
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Arnold, Sarah Elizabeth Joan. "Flowers through insect eyes : the contribution of pollinator vision to the evolution of flower colour." Thesis, Queen Mary, University of London, 2010. http://qmro.qmul.ac.uk/xmlui/handle/123456789/622.

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Flowers’ colours are an essential element of their ability to attract visits from pollinators. However, the colours as they appear to human observers can differ substantially from their appearance to insect pollinators, and so it is essential to consider pollinator vision in any study of the ecology of flower colour. In this thesis I describe how I have overseen the development of an online database to provide accurate information on floral spectral reflectance measured without human observational bias. This resource allows a more accurate consideration of flower colours in future studies, and
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Almeida, Jorge Alexandre Matos Pinto de. "Molecular genetics of patterns of flower colour in Antirrhinum majus." Thesis, University of East Anglia, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329364.

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5

Berglund, Hilda-Linn. "Effects of flower abundance and colour on pan-trap catches." Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-133077.

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Pollinating insects are important for many plants and for the human population. To be able to monitor pollinators and assess improvements made for them, it is important to get information about pollinator population changes. Therefore, it is essential that the methods used to collect data are accurate (i.e. that they represent the pollinator fauna). One commonly used method is pan-traps, but this method is suggested to be affected by the abundance of surrounding flowers. The results in the present study showed that catches in pan-traps can be affected by flower cover and the colour of the flow
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Tiengtum, Pimol. "Towards the genetic manipulation of flower colour in Petunia and Curcuma." Thesis, University of Nottingham, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269714.

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Faruq, Samia. "Comparing the efficiency of computational colour constancy algorithms in agent-based simulations : flower colours and pollinators as a model." Thesis, Queen Mary, University of London, 2012. http://qmro.qmul.ac.uk/xmlui/handle/123456789/8476.

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The perceived colour of an object depends on its spectral reflection and spectral composition of the illuminant. Upon illumination change, the light reflected from the object also varies. This results in a different colour sensation if no colour constancy mechanism is available to form consistent representations of colours across various illuminants. We explore various colour constancy mechanisms in an agent-based model of foraging bees selecting flower colour based on reward. The simulations are based on empirically determined spatial distributions of various flower species in different plant
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8

Kabwazi, Harvey Hendryson Nelson. "The genetics of flower colour and flavonoid pigments in the genus Pelargonium." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309094.

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9

Whibley, Annabel C. "Molecular and genetic variation underlying the evolution of flower colour in Antirrhinum." Thesis, University of East Anglia, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.423798.

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10

Tavares, Hugo. "Evolutionary genetics and genomics of flower colour loci in an Antirrhinum hybrid zone." Thesis, University of East Anglia, 2014. https://ueaeprints.uea.ac.uk/52043/.

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Unravelling the genetic nature of reproductive isolation is crucial to understanding the maintenance of diversity between populations. In hybrid zones, loci that establish a barrier to gene flow between populations remain divergent, whereas neutral unlinked loci become mixed. In those instances, fit allelic combinations across several loci can be maintained through selection, but this is antagonized by gene flow and recombination. Here, I show that particular allelic combinations in a linked cluster of loci responsible for a flower colour polymorphism between two A. majus subspecies are mainta
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11

Ghayoor, Karimiani Zeinab [Verfasser]. "Molecular breeding of Campanula for novel flower colour and ethylene insensitivity / Zeinab Ghayoor Karimiani." Hannover : Technische Informationsbibliothek (TIB), 2015. http://d-nb.info/1081565659/34.

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12

Smithson, Ann. "Frequency-dependent selection amongst floral variants through the foraging behaviour of bumblebees, Bombus terrestris." Thesis, University of Exeter, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296288.

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13

Delafield, Susan J. "Development of tissue and protoplast culture techniques for Impatiens walleriana Hook. f. with a view to the transfer of yellow flower colour." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=59575.

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Impatiens walleriana Hook.f. is a popular bedding plant with a variety of flower colours excepting yellow. Transfer of this characteristic could be achieved through somatic hybridization, thus this study was an attempt to establish the basic parameters of tissue and protoplast culture. The condition of the stock plants and surface sterilisation techniques are important for this species. Most tissues responded to trials for callus induction with rhizogenesis. Evaluation of media and plant growth regulator combinations revealed that axillary shoot proliferation was most efficient on MS medium wi
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Begum, Mahmuda. "Habitat manipulation to enhance biological control of light brown apple moth (Epiphyas Postvittana)." Thesis, The University of Sydney, 2004. http://hdl.handle.net/2123/690.

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Trichogramma carverae Oatman and Pinto is mass-released for biological control of the leafroller pest, light brown apple moth, Epiphyas postvittana (Walker) in Australian vineyards. Parasitoid performance can, however, be constrained by a lack of suitable adult food and no information is available on the effect of nectar on the parasitism and longevity of T. carverae. To address this, the effect of alyssum, Lobularia maritima (L.) flowers on E. postvittana parasitism was studied in a vineyard experiment with and without releases of T. carverae. Egg parasitoid activity was assessed with E. post
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15

Martins, Amanda Eburneo. "Padrões de cores de flores e a polinização em vegetações sazonais /." Rio Claro, 2019. http://hdl.handle.net/11449/191419.

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Orientador: Leonor Patricia Cerdeira Morellato<br>Resumo: A visão é o principal sentido utilizado pelos polinizadores para forragear, no qual a cor das flores é a primeira característica de atração. A percepção dos sinais de cores depende da coloração do segundo plano das flores, composto principalmente pelas folhas. Diferenças na composição das espécies e na estrutura da vegetação, e também na sazonalidade climática, podem interferir na cor do segundo plano de folhas em diferentes vegetações e estações, interferindo como os polinizadores percebem a flor. Portanto, a diversidade de cores das f
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Begum, Mahmuda. "Habitat manipulation to enhance biological control of light brown apple moth (Epiphyas Postvittana)." University of Sydney. Rural Management, 2004. http://hdl.handle.net/2123/690.

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Trichogramma carverae Oatman and Pinto is mass-released for biological control of the leafroller pest, light brown apple moth, Epiphyas postvittana (Walker) in Australian vineyards. Parasitoid performance can, however, be constrained by a lack of suitable adult food and no information is available on the effect of nectar on the parasitism and longevity of T. carverae. To address this, the effect of alyssum, Lobularia maritima (L.) flowers on E. postvittana parasitism was studied in a vineyard experiment with and without releases of T. carverae. Egg parasitoid activity was assessed with E. post
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Mudalige, Rasika Geethanjali. "Dendrobium flower color : histology and genetic manipulation." Thesis, University of Hawaii at Manoa, 2003. http://hdl.handle.net/10125/3066.

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Dendrobium is the most important cut flower orchid in the world. Understanding the chemical, histological and molecular aspects of flower color is crucial for the development of breeding strategies for novel colors. The objectives of this research were to examine the histology of flower color, cloning and characterization of flavonoid biosynthetic genes, and metabolic engineering of Dendrobium flavonoid pathway to obtain new colors. In Dendrobium, anthocyanins can be confined to a single layer of cells (epidermal or suepidermal) in pale flowers. More intensely colored flowers had anthocyanin i
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Zhang, Yang. "Flower color diversity and the optical mechanism." Kyoto University, 2008. http://hdl.handle.net/2433/136611.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第13884号<br>農博第1699号<br>新制||農||954(附属図書館)<br>学位論文||H20||N4351(農学部図書室)<br>UT51-2008-C800<br>京都大学大学院農学研究科農学専攻<br>(主査)教授 矢澤 進, 教授 米森 敬三, 教授 縄田 栄治<br>学位規則第4条第1項該当
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Bohorquez-Restrepo, Andres. "BIOCHEMICAL AND COLORIMETRIC STUDY OF FLOWER COLOR IN PHLOX SPECIES." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1429694764.

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Streisfeld, Matthew A. "Ecological genetics of flower color variation in Southern California bush monkeyflowers /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2005. http://wwwlib.umi.com/cr/ucsd/fullcit?p3170243.

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21

Wertlen, Anna Maria. "Evolution of flower colours choice strategies of pollinating hymenoptera as selection factors /." [S.l.] : [s.n.], 2006. http://www.diss.fu-berlin.de/2006/338/index.html.

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22

Ono, Sho. "Genetic and Epigenetic Mechanisms Controlling Flower Color and Pattern Diversity in Dahlia." Kyoto University, 2016. http://hdl.handle.net/2433/215224.

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Kyoto University (京都大学)<br>0048<br>新制・論文博士<br>博士(農学)<br>乙第13017号<br>論農博第2827号<br>新制||農||1042(附属図書館)<br>学位論文||H28||N4964(農学部図書室)<br>32945<br>京都大学大学院農学研究科農学専攻<br>(主査)教授 土井 元章, 教授 裏出 令子, 教授 奥本 裕<br>学位規則第4条第2項該当
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Vadillo, Carrasco Esther. "Cambiemos el color de las flores." Revista de Química, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/100599.

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¿Quién no cae subyugado ante la belleza de la naturaleza, especialmente al ver un jardín de flores, donde sus hermosos colores nos muestran algunas de sus maravillas?Podemos jugar con estos colores haciendo que cambien debido a algunas reacciones químicas que se producen al usar algunos ácidos o bases que van a reaccionar con algunos de los colorantes que contienen algunos pétalos.En este experimento veremos como cambiar el color de los pétalos usando algunas soluciones y anilina de diversos colores.
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Fogg, Leanne Denice. "The Role of Carotenoid Cleavage Dioxygenase 4 in Flower Color of the Allopolyploid Brassica napus." DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1306.

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Allopolyploids are formed by interspecific hybridization and whole genome duplication, with the resulting organism contains multiple distinct subgenomes in one nucleus. Subgenomic interactions result in massive genetic and epigenetic reconstruction, contributing to variable phenotypic traits noted in newly formed allopolyploids. To better understand these mechanisms in the context of molecular biology, evolution, and plant breeding, plant biologists study the model organism Brassica napus (farmed as canola or oilseed rape). With white-flowering and yellow-flowering progenitors, flower color ph
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25

Kameoka, Shinichiro. "Flower color polymorphism in Hepatica nobilis var. japonica with reference to genetic backgrounds and reproductive success." Kyoto University, 2019. http://hdl.handle.net/2433/242752.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(人間・環境学)<br>甲第21875号<br>人博第904号<br>新制||人||215(附属図書館)<br>2018||人博||904(吉田南総合図書館)<br>京都大学大学院人間・環境学研究科相関環境学専攻<br>(主査)教授 瀬戸口 浩彰, 教授 加藤 眞, 教授 市岡 孝朗, 准教授 西川 完途<br>学位規則第4条第1項該当
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Bartlett, Jeremy. "The genetic control of anthocyanin biosynthesis in Antirrhinum majus." Thesis, University of East Anglia, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329521.

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au, kryan@ccg murdoch edu, and Karon Magdalene Leanne Ryan. "Variation of flour colour in Western Australia adapted wheat: comparative genomics, molecular markers and QTL analysis." Murdoch University, 2005. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20061019.130337.

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The yellowness of flour colour ranges is an important quality trait in wheat for end-use products and is determined by the accumulation of carotenoids in the endosperm. The aims of this study were to develop EST-based molecular markers for genes encoding enzymes of the carotenoid biosynthetic pathway leading to xanthophyll accumulation and identify quantitative trait loci for flour colour (b*) and xanthophyll content in Western Australian adapted germplasm. A novel bioinformatic strategy was developed to identify rice genes encoding key enzymes of the carotenoid biosynthetic pathway and to
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Russell, Avery L., China Rae Newman, and Daniel R. Papaj. "White flowers finish last: pollen-foraging bumble bees show biased learning in a floral color polymorphism." Springer, 2016. http://hdl.handle.net/10150/621351.

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Pollinator-driven selection is thought to drive much of the extraordinary diversity of flowering plants. Plants that produce floral traits preferred by particular pollinators are more likely to receive conspecific pollen and to evolve further adaptations to those pollinators that enhance pollination and ultimately generate floral diversity. Two mechanisms in particular, sensory bias and learning, are thought to explain how pollinator preference can contribute to divergence and speciation in flowering plants. While the preferences of pollinators, such as bees, flies, and birds, are frequently i
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Laimbeer, Francis Parker Effingham. "Potato genomics three ways: quantification of endoreduplication in tubers, a romp through the transposon terrain, and elucidation of flower color regulation." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/84480.

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Investigations of potato (Solanum tuberosum) have been hampered by its complicated genetics and high genetic load. This dissertation applies genome reduction techniques to investigate a broad swath of genomic and physiological phenomena. It begins with the presentation and evaluation of a protocol to characterize endoreduplication within potato tubers, demonstrating substantial variation between tissue types and among wild species which may facilitate research into the genesis and growth of these starchy underground stems. Next, we transitioned to explore the distribution and consequences of a
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Wilk, Fabian. "Synesthesia : the art of seeing QCD colour : a measurement of colour flow in top-quark pair events." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/synesthesia--the-art-of-seeing-qcd-colour-a-measurement-of-colour-flow-in-topquark-pair-events(36fe3624-8cc3-4ce1-9a5a-e6b73aeaed10).html.

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In the Summer of 2015, the Large Hadron Collider resumed operation after a two-year shutdown, providing proton-proton collisions at a record energy of 13 TeV. This thesis presents two measurements of data recorded by the ATLAS detector in proton-proton collisions at the LHC. The first is a measurement of the top-quark pair production cross-section. A dataset of 85 inverse picobarn recorded during an early operating period at the new centre-of-mass energy is used. The cross-section is measured in the single-lepton final state using a high-momentum electron or muon. Measured cross-section values
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Wang, You Ming. "Characterisation of grain constituents responsible for the yellow colour of Asian alkaline noodles." Thesis, The University of Sydney, 2001. https://hdl.handle.net/2123/27774.

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The nature of the flour constituents, other than the xanthophylls, responsible for the yellow colour of Asian alkaline noodles was investigated. Compounds which were colourless at neutral or acid pH but which turn yellow at alkaline pH were partially extracted with water whilst much larger quantities were extracted with 0.1M hydroxylamine at pH 7.2. A preliminary screening method for measuring the genetic variation of these compounds in wheat cultivars has been developed. The absorbance of hydroxylamine extracts at 440 nm, following adjustment of pH with NaOH, was used to estimate the qu
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Mochizuki, Ko. "Diversity of plants pollinated by fungus gnats and associated floral syndrome." Kyoto University, 2018. http://hdl.handle.net/2433/232293.

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Watson, Benedette. "Use of marker assisted selection for the introgression of quality traits from Australian into Chinese wheats." University of Southern Queensland, Faculty of Sciences, 2008. http://eprints.usq.edu.au/archive/00006290/.

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[Abstract]Quantitative Trait Loci (QTLs) for polyphenol oxidase and xanthophyll have a significant impact on variation in wheat flour for noodle colour and colour stability. QTLs from two Australian wheat cultivars, Sunco and Tasman, have been backcrossed into two Chinese wheat varieties, Chuanmai 22 and Mianyang 11, to assess marker predictability for these important traits in significantly different genetic backgrounds. The concept of Marker-Assisted-Selection (MAS) is being trialled in this study as a proposed method for wheat improvement. In this approach molecular markers are used in conj
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Messinger, Olivia J. "The Role of Visual and Olfactory Cues in Host Recognition for the Specialist Bee Genus Diadasia, and Implications for the Evolution of Host Choice." OpenSIUC, 2013. https://opensiuc.lib.siu.edu/dissertations/690.

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How specialist bees distinguish their host plants from co-blooming non-hosts is not well understood, but it is thought that they may be physiologically limited in their ability to recognize the majority of visual and olfactory cues presented by flowering plants. Species in the genus Diadasia collect pollen from just one of five plant families: Cactaceae, Malvaceae, Onagraceae, Asteraceae, and Convolvulaceae. Assuming a common ancestor for all Diadasia specialized on just one plant, this indicates host-switches in the past, and an ability to recognize more than one flowering plant. I hypothe
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Lees, Timothy A. "The haemodynamic investigation of venous disease of the lower limb." Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309093.

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Nixon, Matthew Robert. "Photonic structures in nature : through order, quasi-order and disorder." Thesis, University of Exeter, 2014. http://hdl.handle.net/10871/15040.

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The majority of colours in the natural world are produced via the wavelength selective absorption of light by pigmentation. Some species of both flora and fauna, however, are particularly eye-catching and visually remarkable as a result of the sub-micron, light-manipulating architecture of their outer-integument material. This thesis describes detailed investigations of a range of previously unstudied photonic structures that underpin the creation of the interesting visual appearances of several such species of flora and fauna. These structures were examined using a variety of methods, includi
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Klamborn, Ida. "Compleatly." Thesis, Högskolan i Borås, Institutionen Textilhögskolan, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-20816.

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It all started with a thought of one single colour; the colour red. The idea of building a collection from one colour was frighten- ing and intriguing at the same time. It was frightening because I didn’t know if it was enough to build a whole collection on only one colour, but the possibility to find other expressions arouse my curiosity. But why red? I find that this colour, of all colours, has the deepest range of shades. With red ink and my fingers as tools I created an ab- stract sketch to refer to. When the differ- ent shades come together it creates a great vivid expression of the whole
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Luís, Rita Joana dos Santos. "Bolbosas e a arquitectura paisagista. Da produção à aplicação em jardins." Master's thesis, ISA/UL, 2015. http://hdl.handle.net/10400.5/11217.

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Mestrado em Arquitectura Paisagista - Instituto Superior de Agronomia<br>Flowering bulbs are the dream of any landscape or gardener, for the great variety of bloom color, flowering time, plant height and shapes. In fact there are countless uses for this type of plants, and it is usual to find it in many ways in the garden, such as: under deciduous shrubs and trees, giving color when there are no leaves; in containers, outside or inside, portable or fixed; in Rock Gardens; in lawns or meadows, bounding different areas or appearing naturally or in small groups; as ground cover, associated
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Ali, Muhammad Raza. "Real time single and multi-gesture recognition based on skin colour and optical flow." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/real-time-single-and-multigesture-recognition-based-on-skin-colour-and-optical-flow(52df8545-852d-4183-b857-5942aebbfa3c).html.

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This thesis discusses our research conducted in the area of hand gesture recognition. The research objectives were to develop techniques that lead to accurate and robust gesture recognition under everyday settings. And work with consistent accuracy in both single and multiuser scenarios. In this research, we propose techniques that rely on the combination of skin colour and optical flow. A background subtraction stage involves identifying skin regions in an image frame. We use skin colour thresholds in chromaticity space. In our work, we have simplified the process by identifying a reliable se
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Boussarsar, Riadh. "Contribution des mesures floues et d'un modèle markovien à la segmentation d'images couleur." Rouen, 1997. http://www.theses.fr/1997ROUES036.

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La segmentation d'image couleur consiste à partager l'image en différentes régions ayant des caractéristiques homogènes selon certains critères. La base de représentation couleur utilisée est la base RGB afin de ne pas perdre l'information couleur de l'image. Tenant compte de la corrélation des données des trois plans de l'image dans cette base, une segmentation grossière hybride suivie d'une segmentation fine sont développées. La segmentation grossière est une classification itérative. Elle utilise des mesures floues telles que l'index ou l'entropie floue afin de minimiser de manière optimale
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Deslandes, Nicole. "La flore et le paysage dans les images médiévales à l’époque des Valois : une écriture analogique." Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLEP013.

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 la fin du Moyen Âge les fleurs sont fréquemment représentées dans les tapisseries, les manuscrits enluminés et les tableaux. L’objectif de l’étude est d’établir qu’il ne s’agit pas d’un simple procédé décoratif. Les fleurs, support naturel de la couleur, constituent un système symbolique par analogie dont la fonction est de guider le spectateur dans sa lecture de l’image. La construction des images en réseaux signifiants avec la flore symbolique accompagne un comportement nouveau, la Devotio Moderna, sous l’influence des ordres Mendiants, notamment les Dominicains. L’objectif est de guider l
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Lakshmanan, Kris. "Quantitative computer image processing of color particle markers in flow visualization /." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487265143146735.

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Tajima, Yoshihito. "Les couleurs dans la poésie de Rimbaud." Thesis, Paris 4, 2014. http://www.theses.fr/2014PA040085.

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Dans le domaine de l’optique, les savants ont réfléchi, depuis l’Antiquité, aux couleurs. Dans les beaux-arts, par sa nature accidentelle, la couleur a été traitée comme un élément inférieur au dessin. L’enseignement scolaire a suivi cette tendance. Cependant, au milieu du XIXe siècle, apparaissent divers ouvrages de vulgarisation traitant des couleurs. Leur point de vue est alors le savoir-vivre, l’éducation, l’ésotérisme, l’optique, l’art ou la technologie. Notre thèse a pour objectif de comprendre en quoi le traitement des couleurs est original dans les poèmes en vers de Rimbaud, en relatio
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Moustafa, Ahmed. "Deducing water parameters in rivers via statistical modelling." Thesis, Loughborough University, 2011. https://dspace.lboro.ac.uk/2134/9095.

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Advanced monitoring of water quality in order to perform a real-time hazard analysis prior to Water Treatment Works (WTW) is more of a necessity nowadays, both to give warning of any contamination and also to avoid downtime of the WTW. Downtimes could be a major contributor to risk. Any serious accident will cause a significant loss in customer and investor confidence. This has challenged the industry to become more efficient, integrated and attractive, with benefits for its workforce and society as a whole. The reality is that water companies are not yet prepared to invest heavily in trials,
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Willey, Stephen. "Improving the pipeline for stereo post-production." Thesis, University of Bath, 2017. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.760908.

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We investigate some problems commonly found when dealing with stereo images. Working within the context of visual effects for films, we explore software solutions to issues arising with stereo images captured on-set. These images originate from a wide variety of hardware which may or may not provide additional data support for post-production needs. Generic software solutions are thus greatly to be preferred. This dissertation documents contributions in the following three areas. Each project was undertaken at Double Negative and investigated with the aim of improving the post-production pipel
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Raine, John. "Evidence for the production of a Higgs boson in association with two top quarks with the ATLAS detector." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/evidence-for-the-production-of-a-higgs-boson-in-association-with-two-top-quarks-with-the-atlas-detector(8c0c9d01-ee21-4f7e-9db6-1f5d92de1faf).html.

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In this thesis, the search for the production of the Higgs boson in associationwith two top quarks is presented. The main focus of this work is on the analysis optimised for the decay of the Higgs boson to a b-quark pair. The analysis is performed using 36.1 fb−1 of ppcollision data at a centre of mass energy sqrt(s)=13 TeV collected by the ATLAS detector at the Large Hadron Collider during 2015 and 2016. The signal strength of ttH in relation to the Standard Model prediction for a Higgs boson with a mass of 125 GeV is measured to be mu(ttH) = 0.87 +0.64−0.61, with signal strengths great
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Gabelli, Maria. "Central nervous system involvement in pediatric acute lymphoblastic leukemia detected by 8-color flow cytometry: a prospective study." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3426220.

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Introduction Acute lymphoblastic leukemia (ALL) may involve central nervous system (CNS) in 3-6% of pediatric patients. Conventional cytology (CC) of cerebrospinal fluid (CSF), together with cell count, is the current standard test to define CNS infiltration, although sensitivity and specificity are low. Flow cytometry (FC) can identify blasts in CSF samples that are negative for cytology with higher sensitivity and specificity. Clinical significance of this occult CNS involvement in children with ALL is still not clearly understood. The aim of this work is to explore the frequency of CNS in
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Buffin, Aurélie. "Food flow and stock management in an ant colony." Doctoral thesis, Universite Libre de Bruxelles, 2011. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209850.

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The organization of complex societies requires constant information to flow between individuals. Because of their elaborated social structures and principally because of the division of labor, social insects depend on the efficacy of their information web in order to adapt the colony activity to its needs. Although many studies focused on understanding the regulation of the foraging activity, little is known about the intranidal food distribution and stock management regulation. The aim of this thesis is to quantify and describe the dynamics of the food flow and its regulation in an ant colony
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Demarcq, Guillaume. "Le signal monogène couleur : théorie et applications." Phd thesis, Université de La Rochelle, 2010. http://tel.archives-ouvertes.fr/tel-00583117.

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Dans cette thèse, une nouvelle représentation des images couleur basée sur une généralisation du signal analytique est introduite. En utilisant l'analogie entre les conditions de Cauchy-Riemann, qui définissent le caractère holomorphe d'une fonction, et l'équation de Dirac dans l'algèbre de Clifford R_{5,0}, un système d'équations dont la solution est le signal monogène couleur est obtenu. Ce signal est notamment basé sur des noyaux de Riesz ainsi que de Poisson 2D, et une représentation polaire, basée sur un produit géométrique, peut lui être associée. Les applications envisagées reposent maj
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Reeves, Claire Elspeth. "Integrated scheduling for ambulances and ambulance crews." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/86516/1/Claire_Reeves_Thesis.pdf.

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This project developed three mathematical models for scheduling ambulances and ambulance crews and proceeded to solve each model for test scenarios based on real data. Results from these models can serve as decision aids for dispatching or relocating ambulances; and for strategic decisions on the ambulance crews needed each shift. This thesis used Flexible Flow Shop Scheduling techniques to formulate strategic, dynamic and real time models. Metaheuristic solutions techniques were applied for a case study with realistic data. These models are suitable for ambulance planners and dispatchers.
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