Dissertations / Theses on the topic 'Types of grains'
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Coelho, Ricardo Flabes de Castro. "Híbrido de milho de maior aceitabilidade no sul de Minas Gerais." Universidade Jose do Rosario Vellano, 2010. http://tede2.unifenas.br:8080/jspui/handle/jspui/51.
Full textThe new technologies tend to affect in different ways the agricultural explorations, the farmers and the areas where those activities grow. In this context, the objective of this research was to describe and to identify the profile of the hybrid of larger acceptability developed by the companies sowings that act at the market of the south of Minas Gerais. To present research it was based in the analysis of the primary data collected the companies sowings that act cooperatives close to close to, companies correlate and producing of corn of the area of the south of Minas Gerais. These companies were: Dekalb (São Paulo); Agromen Sementes (São Paulo); Syngenta Seeds (São Paulo); Seeds Dow Agro Sciences Ltda (São Paulo); Pioneer (Rio Grande do Sul); Biomatrix (Minas Gerais); Agroceres (São Paulo); Agroeste (São Paulo); Saint Helena Sementes S.A. (Minas Gerais). Para the accomplishment of the referred research, they were used bibliographical research, researches in specialized sites, random sample, rising of data, questionnaire and field research with the qualitative method. It was ended that the profile of the hybrid more I accept, developed by the companies sowings would be: the precocious double hybrid with couple aptitude, grains semi hard of color it yellows, with plant of medium load tends high resistance to the lodging, preferably positioned in normal time and with possibility to answer satisfactorily to a high investment in the culture.
O desenvolvimento da agricultura tem se caracterizado pelo surgimento, em intervalos distintos de tempo, de tecnologias que alteram profundamente a situação de equilíbrio previamente alcançada. As novas tecnologias tendem a afetar de formas diferentes as explorações agrícolas, os agricultores e as regiões onde essas atividades se desenvolvem. Neste contexto, o objetivo desta pesquisa foi descrever e identificar o perfil do híbrido de maior aceitabilidade desenvolvido pelas empresas sementeiras que atuam no mercado do sul de Minas Gerais. A presente pesquisa fundamentou-se na análise dos dados primários coletados junto às empresas sementeiras que atuam junto a cooperativas, empresas correlatas e produtores de milho da região do sul de Minas Gerais. Estas empresas foram: Dekalb (São Paulo); Agromen Sementes (São Paulo); Syngenta Seeds (São Paulo); Sementes Dow Agro Sciences Ltda (São Paulo); Pioneer (Rio Grande do Sul); Biomatrix (Minas Gerais); Agroceres (São Paulo); Agroeste (São Paulo); Santa Helena Sementes S.A. (Minas Gerais). Para a realização da referida pesquisa, foram utilizados pesquisa bibliográfica, pesquisas em sites especializados, amostra aleatória, levantamento de dados, questionário e pesquisa de campo com o método qualitativo. Concluiu-se que o perfil do híbrido mais aceito, desenvolvido pelas empresas sementeiras seria: o híbrido duplo precoce com aptidão grão, semi duro, com planta de porte baixo tendo alta resistência ao acamamento, de preferência posicionado em época normal e com possibilidade de responder satisfatoriamente a um alto investimento na cultura.
Rodenhuis, Mary Alyson. "Effects of Grain Type and Oil Concentration of Corn Dried Distillers Grains Plus Solubles of Digestion, Finishing Performance, and Carcass Quality." Thesis, North Dakota State University, 2016. https://hdl.handle.net/10365/28016.
Full textGOUGEON, SAMUEL. "Contributions experimentales a l'astrophysique en rayons x : 1) signatures infrarouges des effets des rayons x sur les grains de poussiere refractaires de types circum- et interstellaire. 2) metrologie de surface d'un miroir a rayons x du satellite astronomique xmm : erreurs de pente, rugosite. diffusion x. simulation et evaluation des images resultantes." Paris 7, 1998. http://www.theses.fr/1998PA077071.
Full textFeland, Calli. "Nitrogen Fertilizer Types and Application Timing on Hard Red Spring Wheat Productivity and Grain Protein." Thesis, North Dakota State University, 2017. https://hdl.handle.net/10365/29209.
Full textMinnesota Wheat and Promotion Council
Malekitehrani, Mohammadali. "oint simulation of grades and rock types using non-stationary geostatistical models." Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/143833.
Full textLa simulación geoestadística se usa ampliamente en ingeniería de minas para cuantificar la incertidumbre geológica, al producir múltiples realizaciones alternativas de la distribución de los recursos in situ y/o reservas mineras en el subsuelo. Sin embargo, el modelamiento geoestadístico de propiedades de diferentes naturalezas, como las leyes de metales medidas en escalas cuantitativas continuas y los tipos de roca medidos en una escala categórica o nominal, sigue siendo un proceso engorroso y complejo. Tradicionalmente, se recurre a un enfoque jerárquico, donde se modela primero la extensión espacial de los tipos de roca, luego las leyes de metales dentro de cada tipo de roca por separado. Este enfoque tiende a producir discontinuidades en la distribución de las leyes al cruzar la frontera entre tipos de roca, lo que podría no ser deseable. Una alternativa para evitar tales discontinuidades es simular conjuntamente las leyes y los tipos de roca, enfoque que ha sido propuesto en años recientes, principalmente en un marco estacionario donde se supone que las distribuciones de leyes y de tipos de roca son invariantes al desplazarse en el espacio. El modelamiento conjunto de leyes de metal y tipos de roca se torna más difícil cuando se busca reproducir tendencias espaciales y zonaciones en los tipos de roca, una característica que se encuentra comúnmente en la práctica y pone en duda el supuesto de estacionaridad para los tipos de roca. En este contexto, la tesis tiene como objetivo desarrollar propuestas metodológicas y prácticas para simular conjuntamente una ley de metal y un tipo de roca, al representar la primera por un campo aleatorio Gaussiano estacionario y el segundo por un campo aleatorio intrínseco de orden k con incrementos generalizados Gaussianos. Las propuestas conciernen la inferencia de los parámetros del modelo y la construcción de realizaciones condicionadas a datos existentes. Por un lado, la principal dificultad en la inferencia radica en la identificación de la estructura de correlación espacial (covarianzas generalizadas directas y cruzada), para lo cual se diseña un algoritmo semi-automático basado en un ajuste de mínimos cuadrados de las covarianzas de indicadores de roca y covarianzas cruzadas de leyes e indicadores. Se define además varios modelos bivariables de covarianza para facilitar la elección de estructuras básicas en el modelamiento de las covarianzas generalizadas. Por otro lado, la simulación conjunta se basa en un algoritmo espectral para construir realizaciones no condicionales, y en un algoritmo iterativo y una variante de cokriging para condicionar las realizaciones a datos de leyes y tipos de roca. Los modelos y algoritmos propuestos son aplicados a dos yacimientos cupríferos (Lince-Estefanía y Río Blanco-Los Bronces) para simular conjuntamente las leyes de cobre y la extensión de tipos de roca. Los resultados obtenidos muestran la capacidad de los modelos de reproducir las transiciones graduales de leyes al cambiar de tipo de roca, así como la zonación espacial de los tipos de roca en la región de estudio.
Fossati, Dario. "Structures du rendement et croissance des grains de triticale : comparaison de génotypes de tailles différentes /." [S.l.] : [s.n.], 1995. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=11271.
Full textDompierre, Benoît. "Fiabilité mécanique des assemblages électroniques utilisant des alliages du type SnAgCu." Phd thesis, Ecole Centrale de Lille, 2011. http://tel.archives-ouvertes.fr/tel-00604954.
Full textBERRUYER, DESIROTTE NICOLE. "Contribution a l'etude des enveloppes circumstellaires : effet du couplage grains-gaz." Nice, 1987. http://www.theses.fr/1987NICE4157.
Full textAcosta, Sanchez David. "White food-type sorghum in direct-expansion extrusion applications." Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969.1/515.
Full textRethwisch, Michael D., Rigo Perez, Bradley J. Griffin, A. Bradley, and Mark Reay. "Alfalfa yield and quality responses to applications of three types of plant growth regulators." College of Agriculture, University of Arizona (Tucson, AZ), 2003. http://hdl.handle.net/10150/205397.
Full textQin, Yang. "Grain Boundary Engineering for Improving Intergranular Corrosion resistance of Type 316 Stainless Steel." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1505210960237495.
Full textBannert, Michael. "Simulation of transgenic pollen dispersal by use of different grain colour maize /." Zürich : ETH, Institute of Plant Sciences, Group Agronomy and Plant Breeding, 2006. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=16508.
Full textHeinrich, Jan-Philipp, Carsten Neise, and Andreas Müller. "Ähnlichkeitsmessung von ausgewählten Datentypen in Datenbanksystemen zur Berechnung des Grades der Anonymisierung." Universitätsbibliothek Chemnitz, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-233422.
Full textNaqvi, Shabbar. "Modelling FTIR spectral sata with Type-I and Type-II fuzzy sets for breast cancer grading." Thesis, University of Nottingham, 2014. http://eprints.nottingham.ac.uk/14321/.
Full textLouis, Sandrine. "Diversité structurale et d'activité biologique des Albumines entomotoxiques de type 1b des graines de Légumineuses." Phd thesis, INSA de Lyon, 2004. http://tel.archives-ouvertes.fr/tel-00007903.
Full textAfin de mieux connaître la nouvelle famille peptidique de PA1b, sa variabilité tant structurale que d'activité biologique a été étudiée au sein des Légumineuses. Après avoir validé notre approche sur 4 espèces végétales "test", nous avons caractérisé 24 gènes homologues chez 18 espèces de Papilionoideae. De plus, l'activité insecticide d'extraits de graines de 60 espèces des trois sous-familles de Légumineuses a été déterminée sur charançons de souche sensible et résistante à PA1b. Afin de relier variations de structure et d'activité, une approche par mutagenèse dirigée a été envisagée. Un système d'expression bactérienne et de purification de PA1b a été mis au point. Bien que de masse conforme (cystéines oxydées), le peptide recombinant ne présente pas d'activité biologique.
Louis, Sandrine Rahbé Yvan. "Diversité structurale et d'activité biologique des Albumines entomotoxiques de type 1b des graines de Légumineuses." Villeurbanne : Doc'INSA, 2004. http://docinsa.insa-lyon.fr/these/pont.php?id=louis.
Full textConclusions générales et perspectives, liste des figures et des tableaux en français et en anglais. Titre provenant de l'écran-titre. Bibliogr. p. 215-247.
Maphosa, T. M., and Tsakani Maria Maphosa. "Growth, nodulation and yield response of promiscuous and non-promiscuous soybean cultivars to inoculation in different soil types under classhouse and field conditions." Thesis, University of Limpopo, 2015. http://hdl.handle.net/10386/1301.
Full textSoybean (Glycine max (L.) Merrill) is considered to be an important grain legume and an oil crop. It is also important in livestock feeding and improvement of soil fertility through biological nitrogen fixation (BNF). Until recently, soybean was not widely grown by smallholder (SH) farmers in Africa. This has led to breeding of promiscuous varieties to ensure wide adoption of the crop by SH farmers, without the use of inoculants or expensive nitrogen fertilizers. Field and glasshouse experiments were conducted during 2012/2013 growing season. One commercial (specific) variety Dundee and three naturally-nodulating (promiscuous) soybean varieties (TGx-1937-1F, TGx-1740-2F, TGx-1835-10E) were evaluated in a field trial for their growth, nodulation and yield response to B. japonicum strain WB74 inoculation. Seed inoculation in the field enhanced chlorophyll content, number of nodules, nodule dry weight, and the percentage of active nodules, number of pods, hundred seed weight, shelling percentage and grain yield. Varietal differences exerted significant (P≤0.05) effect on all field parameters evaluated except on nodule number and percentage of active nodules. TGx-1937-1F achieved the highest number of nodules (28 per plant) while the highest percentage of active nodules (69%) was achieved by TGx-1740-2F. Huge effect of inoculation was observed on Dundee variety, and resulted in significant grain yield increases (237.8%) while smaller gain increases were observed in TGx-1740-2F (43.9%) and TGx-1835-10E (38.7%). The yield of TGx-1937-1F did not respond to inoculation. Two promiscuous (TGx-1937-1F and TGx-1740-2F) varieties and one commercial (Dundee) variety were evaluated in a glasshouse trial for their growth and nodulation response to inoculation in different soil types (sandy clay loam, sandy loam, loamy sand) of Limpopo Province. In the glasshouse inoculation showed effect on chlorophyll content only, and effect of soybean variety was found to be significant on days to flowering, chlorophyll content, plant height, number of nodules and root dry weight. Soil type showed significant effect on all parameters evaluated in the glasshouse study except on nodule dry weight. Loamy sand soil from Ga-Molepo gave tallest plants and highest nodule number at 61 cm and 29 nodules/plant compared to other soils. All soils evaluated in the study resulted in percent active nodules ranging from 74.5% to 77.4% showing possibility of presence of cowpea-type rhizobia in Limpopo soils capable of fixing atmospheric nitrogen. Inoculation x variety interaction was significant on days to flowering, plant height and chlorophyll content. Inoculant application in TGx-1740-2F variety reduced the number of days it took to flowering from 61 to 54 days and increased its plant height by 57% from 44.8 to 67.9 cm. Eighty three percent (83%) increase on chlorophyll content of variety Dundee was observed due to effect of inoculation. Inoculation x soil type interaction had significant effect on plant height and dried plant biomass. Varity x soil type interaction influenced chlorophyll content, while the interactive effects of inoculation x variety x soil type were significant on chlorophyll content only. The study showed that it is beneficial to inoculate the soybean varieties studied, especially the commercial variety Dundee, in order to enhance their growth, nodulation and yield.
Department of Agriculture Forestry and Fisheries
ELLY, JIMMY CHANDRA. "Etude de jonctions josephson en ybacuo de type joints de grains sur bicristaux : influence de la lumiere sur le couplage josephson." Nice, 1997. http://www.theses.fr/1997NICE5078.
Full textToghranegar, Zohreh. "Diversité et évolution de la microsporogenèse chez les angiospermes basales et les monocotyledones." Thesis, Paris 11, 2013. http://www.theses.fr/2013PA112110.
Full textThe pollen grain, the male gametophyte of seed plants, is the product of microsporogenesis (male meiosis). It has a considerable structural diversity in flowering plants. To investigate this diversity, we have focused our study on the aperture pattern. The aperture pattern of pollen grains is defined by the shape and number of apertures, and their position when pollen grains are still assembled in tetrads at the end of meiosis. The outer pollen wall is punctuated with apertures, areas where the exine is thinner or even absent. The apertures are the places where the pollen tube emerges at germination. They also have an essential functional role for the survival of pollen grains. The study of microsporogenesis has shown that variations in the aperture pattern can be correlated with features of this developmental process: the type of cytokinesis, the tetrad shape, the way in which callose walls are formed among the four microspores and the position of the apertures within the tetrad (polar or grouped at the last point of contact among the microspores). Recently, in a certain number of species, a correlation has been evidenced between the location of the last points of additional callose deposition and aperture location after wall formation among the future microspores. We studied the diversity and evolution of the above-mentioned features of microsporogenesis and additional callose deposition at the late tetrad stage in a selection of species from basal angiosperms and monocots (with a particular sampling effort in Bromeliaceae) with various aperture patterns. The study of microsporogenesis in these groups revealed the presence of additional callose deposits in most cases. We show that there is a link between the last points of callose deposition and aperture location for several aperture types. In addition, for the same pollen morphology, we have observed different patterns of callose deposition. We described seven different microsporogenesis pathways associated to monosulcate pollen grain. They differ in the type of cytokinesis, tetrad shape, and presence and shape of additional callose deposition. Using Maximum Parsimony, we reconstructed the evolution of the features of microsporogenesis and the presence or absence of additional callose deposits likely to play a key role in aperture pattern determination. Our results confirm that the shape of tetragonal tetrads, in association with the successive cytokinesis, centrifugal cell wall formation, and the presence of additional callose deposits, is the ancestral states in monocots. Using our results on basal angiosperms, we confirm that tetrahedral tetrad, in association with simultaneous cytokinesis, centripetal cell wall formation, and the presence of additional callose deposits, are ancestral at the level of angiosperms. Our results highlight the large variability of the features of microsporogenesis in our study species. The transitions observed in the tetrad form character associated in the most cases with transitions in the cytokinesis character, confirm the relationship between these two characters. The transitions in intersporal wall formation are associated with transitions in all other characters. This suggests a correlation among the different components of microsporogenesis in angiosperms. On the opposite, the presence of additional callose deposits, which seems to be the key element in aperture pattern determination (contrary to previous hypotheses) is disconnected from the other features of microsporogenesis. The variations additional callose deposits leading to monosulcate pollen show that the development (additional callose deposits) is not due to developmental constraints and stasis on monosulcate apertural pattern is resulting from selective pressures
Zhou, Yijian. "Effects of grain boundary and triple line structures on carbide precipitation in type 304L stainless steel." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0019/MQ54131.pdf.
Full textBryan, Thomas Scott. "The relationship of eighth grade achievement scores and type of middle grades experience." Virtual Press, 1987. http://liblink.bsu.edu/uhtbin/catkey/514708.
Full textSöderlund, Victoria. "Using texts in the EFL classroom : A study of English teachers' use of text types in the lower grades." Thesis, Högskolan i Gävle, Engelska, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-32450.
Full textSannier, Julie. "Diversité et évolution de la microsporogenèse chez les palmiers (Arecaceae) en relation avec la détermination du type apertural." Phd thesis, Université Paris Sud - Paris XI, 2006. http://tel.archives-ouvertes.fr/tel-00469659.
Full textPereira, Gabriel Maier Fernandes Vidueiro. "Test-case-based call graph construction in dynamically typed programming languages." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/134355.
Full textEvolving enterprise software systems is one of the most challenging activities of the software development process. An important issue associated with this activity is to properly comprehend the source code and other software assets that must be evolved. To assist developers on these evolution tasks, Integrated Development Environments (IDEs) build tools that provides information about the source code and its dependencies. However, dynamically typed languages do not define types explicitly in the source code, which difficult source code analysis and therefore the construction of these tools. As an example, the call graph construction, used by IDE’s to build source code navigation tools, is hampered by the absence of type definition. To address the problem of constructing call graphs for dynamic languages, we propose a technique based on steps to build a call graph based on test runtime information, called test-case-based call graph. The technique is divided in three steps; Step #1 creates a conservative and static call graph that decides target nodes based on method names, and the first step also run tests profiling its execution; Step #2 combines the test runtime information and the conservative call graph built in the first step to create the test-case-based call graph, it also creates a set of association rules to guide developers in the maintenance while creating new pieces of code; Finally, Step #3 uses the test-case-based call graph and the association rules to assist developers in source code navigation tasks. Our evaluation on a large-size real-world software shows that the technique increases call graph precision removing several unnecessary conservative edges ( %70), and assist developers filtering target nodes of method calls based on association rules extracted from the call graph.
Maury, Roland. "ETUDE DES DIVERS REGIMES D'IRREVERSIBILITES MAGNETIQUES DE CERAMIQUES SUPRACONDUCTRICES DE TYPE YBA2 CU3 O6+x." Toulouse, INSA, 1991. http://www.theses.fr/1991ISAT0021.
Full textTscherter, Vincent. "Exorciser : Automatic generation and interactive grading of structured excercises in the theory of computation /." Zürich, 2004. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=15654.
Full textMagimel, Alice. "Etude du fractionnement de graines entières oléo-protéagineuses pour l'obtention de fractions multifonctionnelles de type "émulsions actives" dans le domaine de la formulation cosmétique." Thesis, Toulouse, INPT, 2016. http://www.theses.fr/2016INPT0097.
Full textThis PhD work studies the fractionation of selected regional plants in order to produce multifunctional "active emulsions"type fractions , for cosmetic purposes . This process allows the direct substitution of synthetic ingredients (SDS, lauryl sulfate, glycol ether, PEG ... ) and the development of cosmetic formulations in 100% vegetal plant totum, therefore maintaining the expected biological activities and organic qualifying properties. The choice of raw materials was directed to oilseeds. Not only are oilseed seeds renewable and readily available resources, both from conventional agriculture as well as organic farming, but they also have very different compositions. Hemp, rapeseed, cardoon, woad and flax were chosen because of their complementarity in terms of fatty acid and protein composition. Indeed, physico-chemical and functional characterization related to their protein fraction,have yielded fundamental data for the development and understanding of extraction processes involved in this work. The aqueous fractionation of seeds was studied in a stirred batch reactor and then extended to a continuous fractionation process : twin screw extrusion. This method has been more widely explored. The aqueous fractionation in thermomechano- chemical (TMC) reactor of whole oilseed seeds, one variety at a time and then mixed was implemented first. Then an active natural polysaccharide was introduced in situ through the extracting aqueous phase in order to produce enriched fractions in molecules of interest and to increase the stabilization of the emulsions thus obtained. The best results in terms of yield and quality of emulsions were obtained with the whole rapeseed and the mixture of whole hemp / rapeseed. The different types of emulsions obtained by the TMC process and their behavior under different parameters were characterized by optical microscopy but also through innovative methods such as DSC or NMR low fields. The first valuation tests of formulation in emulsions for cosmetics have been developed
Bednarek, Julie. "Analyse fonctionnelle de TaGW2, une E3 ligase de type RING, dans le développement du grain de blé tendre (Triticum aestivum)." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2012. http://tel.archives-ouvertes.fr/tel-00857341.
Full textBidzinski, Przemyslaw. "Oxydation des flavonoïdes dans les graines d'Arabidopsis thaliana : Analyse fonctionnelle du gène TRANSPARENT TESTA 10 codant une polyphénoloxydase de type laccase." Paris 11, 2009. https://tel.archives-ouvertes.fr/tel-02177497.
Full textThe purpose of this thesis was to perform a functional characterization of the TRANSPARENT TESTA 10 (TT10) gene encoding a laccase (AtLAC15) involved in flavonoid oxidation in Arabidopsis seed. A part of the work was devoted to the analysis of the regulatory mechanisms controlling the developmental pattern of TT10 gene expression in seeds and vegetative plant parts. The functional 5’-dissection of a 2. 0-kb promoter realized with the uidA reporter gene encoding b-glucuronidase (GUS) was performed to identify regions responsibles for activation in seed and other plant organs. TT10 promoter happens to be activated exclusively in seed coat and siliques. Directed mutagenesis was undertaken to precise the regulatory role of in silico-detected cis-acting regulatory elements located in a 194-bp region necessary for expression in seed coat. TT10 gene expression assessed in different tissues at various stages of development using qRT-PCR matched promoter activity pattern. Natural variation for TT10 expression among Arabidopsis accessions was also detected, with the levels of TT10 mRNA in Cvi, Ler and Sha being strongly reduced compared to the ones in Ws, Col and Bay. The impact of this molecular polymorphism on seed flavonoid composition, as analyzed on mature seeds with LC-MS, is discussed. TT10 appeared to be the only member of the laccase gene family to be strongly expressed in seeds
Martin, Joshua. "Methods of thermoelectric enhancement in silicon-germanium alloy type I clathrates and in nanostructured lead chalcogenides." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002448.
Full textZERR, PATRICIA. "Le courant k de type a des cellules des grains du cervelet : modulation par le recepteur gaba#b a haute affinite et blocage par la forskoline." Université Louis Pasteur (Strasbourg) (1971-2008), 1995. http://www.theses.fr/1995STR13089.
Full textMineur, Marie. "Conditions locales d'amorçage des fissures de fatigue dans un acier inoxydable de type 316L : aspects cristallographiques (EBSD)." Poitiers, 2000. http://www.theses.fr/2000POIT2266.
Full textMillam, Ross David Alexander. "Design of an adventitial type reinforcement of prosthetic vascular grafts through mechanically affirmed material and structure modulation." Master's thesis, University of Cape Town, 2001. http://hdl.handle.net/11427/11622.
Full textThe high occurrence of vascular disease in the 20th century has been the driving force for researchers to produce a successful small diameter synthetic graft. Large diameter synthetic grafts remain patent for extended periods due to high flow rate, while smaller diameter grafts occlude more readily. Mechanical property mismatch between graft and host artery has been cited as one of the major factors that contribute to graft occlusion. It has thus been important to develop a readily available graft that is accepted by the body and does not cause flow abnormalities and stress-concentrations at graft-artery junctions. The object of this project was to ascertain the effect of an adventitial reinforcement on elastic compliance of synthetic porous polyurethane grafts.
Moniod, Olivier. "Etude d'une étape du maltage des grains d'orge conduisant à leur germination : la trempe, son influence sur les activités amylasiques et la présence de composés de type phénolamidique." Dijon, 1987. http://www.theses.fr/1987DIJOS013.
Full textNoguero, Mélanie. "Contribution de l'albumen au développement de la graine chez Medicago truncatula : caractérisation d'un facteur de transcription de type DOF exprimé dans l'albumen chalazal." Thesis, Dijon, 2014. http://www.theses.fr/2014DIJOS022/document.
Full textIn the current context, which necessitates a reduction in inputs in crop systems and boosting of production of plant proteins to reduce France’s dependency on feed imports,, growing legumes represents an alternative. Grain legumes are major sources of proteins for animal and human nutrition. In the UMR1347 Agroécologie, the objectives of the study group "déterminismes Génétiques et Environnementaux de l’Adaptation des Plantes à des Systèmes de culture Innovants" (GEAPSI) are to promote legume cultivation and adaptation to environmental stresses, via multidisciplinary approaches (genetics, ecophysiology, molecular physiology). This thesis project was carried out in the "Étude des Mécanismes Moléculaires" team, particularly interested in seed quality traits such as protein content or seed size and identification of genes implicated in variations of these trait s. Experiments were performed using Medicago truncatula as a model species for legumes with a view to transferring the information to the target crop species Pisum sativum.Legume seed size is determined by the embryo’s capacity to divide during embryogenesis and to accumulate reserves during seed filling. At early developmental stages, nutrient assimilation occurs predominantly in embryo-surrounding tissues: the endosperm and seed coat. This thesis project aims to evaluate the endosperm contribution to seed development in M. truncatula. We have shown several DOF (DNA-binding One Zinc Finger) genes to be expressed in this tissue. They belong to a large family of transcription factors implicated in numerous biological processes, but whose role remain to be elucidated. One of these genes, termed DASH for Dof Affecting Seed embryogenesis and Hormone metabolism, is expressed preferentially in the endosperm during embryogenesis. TILLING and TnT1 mutants isolated for this transcription factor are affected in seed development (abortion at 10 DAP). The cytology of development at early stages (6 to 10 DAP) revealed that the expression of this gene in the endosperm is required for the normal development of the embryo, demonstrating the role of the endosperm in the control of embryogenesis in legumes. A comparative transcriptomics study of dash vs wild-type pods allowed us to suggest hypothesis about the function of the DASH gene. Evidence for a deregulation of hormone metabolism, in particular for auxin, was obtained, and several potential target genes of this transcription factor were selected. A comparison of the transcriptome of the three tissues of the seed at 12 DAP was carried out for the reference wild-type line (Jemalong A17). This allowed the tissue localization of the target genes, to reveal metabolic pathways preferentially expressed in the endosperm, and to propose hypotheses about the role of this tissue during seed development
KONDO, TATSUHEI, HIDEO KAMEI, and KEISUKE TERABE. "Histopathological Study on the Prognosis of pT2 Gastric Cancer." Nagoya University School of Medicine, 1986. http://hdl.handle.net/2237/17488.
Full textNissas, Boualem, and Gérard Chalant. "Influence de la taille de grain et de la pureté sur la propagation des fissures de fatigue dans des alliages type 7075 T7351." Poitiers, 1990. http://www.theses.fr/1990POIT2280.
Full textDubé, Marie-Christine. "Diabète de type 1 et contrôle glycémique : au-delà de l'hémoglobine glyquée." Thesis, Université Laval, 2006. http://www.theses.ulaval.ca/2006/23794/23794.pdf.
Full textAlmeida, Danilo Valente. "Qualidade de grãos em feijoeiro-comum: estimativas de parâmetros genéticos, interação com ambientes, eficiência de seleção e correlação entre caracteres." Universidade Federal de Goiás, 2018. http://repositorio.bc.ufg.br/tede/handle/tede/9004.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
Common bean (Phaseolus vulgaris L.) is one of the most important crops related to human feeding playing an important role in ensuring food security. Bean is an important source of protein, besides providing considerable amount of fiber and micronutrients as iron and zinc. Thus, the search for genotypes with high nutritional value grains and that meet standards for commercialization is among the objectives of common bean breeding program, specially the carioca grain type one, the preferred, according to the demand for more nutritious and fast foods. Thus, this work has for objectives: I) To investigate the genetic variability and the environment and genotype-environment interaction effects on seed iron (FeC), zinc (ZnC), crude fiber (CF) and protein content (PC), cooking time (CT), grain yield (GY), 100 grain weight (GW), sieve yield (SY), grain color at harvest (GCH) and grain color after 90 days of storage (GCS); II) To evaluate the degree of information of evaluations for grain quality conducted in an environment; III) To estimate genetic parameters and genetic gains for FeC, ZnC, CF, PC and CT; IV) To estimate phenotypic, genetic and environmental correlations between grain quality traits and GY; V) To select advanced common bean lines with carioca grain type superior for grain quality. 81 common bean lines with carioca grain type were evaluated in Preliminary Tests (PT) in triple lattice design 9x9 with plots of two 4-meter rows. In these trials the traits GY, SY and GW were evaluated and FeC, ZnC, CF, PC and CT were evaluated in only one PT. In this trial the phenotypic and genetic parameters and the genetic gains were estimated. The 20 superior lines were selected considering FeC, ZnC, CF, PC and CT and then evaluated in Validation Tests (VT), conducted in 9environments, between 2015 and 2017, in randomized complete block design with 3 replicates and plots of one 4-meters row. Analysis of variance and joint analysis were performed for all the grain quality traits FeC, ZnC, CF, PC, CT, GY, SY, GCH, GCS and GW evaluated on VT. The phenotypic, genetic and environmental correlations were estimated between the traits FeC, ZnC and GY. The phenotypic adaptability and stability parameters were estimated based on the method proposed by Nunes et al. (2005) and the selection of the best genotypes for grain quality was performed based on the index of Mulamba & Mock (1978). The preliminar evaluation of the grain quality traits was efficient and suficient for selecting the superior genotypes for FeC, CF, PC and CT, however, based on the GxE interaction detected, it is recommended to evaluate in at least 2 environments. Significant effects of genotype, environment and genotype-environment were detected for all the traits evaluated on VT. Based on the genetic variability detected, genetic gains can be obtained with the selection for FeC, ZnC, PC and CT, but for CF the available variability is a challenge to obtain important gains. The phenotypic and genetic correlations between FeC and ZnC were significant, wich indicate simultaneous gains for these traits. The lines CNFC 16627, CNFC 16518, CNFC 16602, CNFC 16615 and CNFC 16520 can be used for the improvement of carioca grain quality.
O feijoeiro-comum (Phaseolus vulgaris L.) está entre as principais culturas destinadas à alimentação, exercendo importante papel na garantia da segurança alimentar. O feijão é fonte importante de proteínas, além de fornecer quantidade considerável de fibras e micronutrientes como ferro e zinco. Neste sentido, a procura por genótipos de grãos de alto valor nutritivo e queatendam aos padrões de comercialização está entre os objetivos do programa de melhoramento do feijoeiro-comum, em especial o feijão carioca, de maior preferência, tendo em vista a demanda por alimentos mais nutritivos e de preparo rápido. Nesse sentido o presente trabalho tem por objetivos: I) investigar o efeito de genótipos, ambientes e da interação de genótipos com ambientes para os teores de ferro (TFe), zinco (TZn), fibra bruta (FB), proteína (PB), tempo de cocção (TC), produtividade de grãos (PG), rendimento de peneira (RP), massa de cem grãos (M100), cor de grãos na colheita (CGC) e cor de grãos após armazenamento (CGA); II) Avaliar o grau de informatividade de avaliações para qualidade de grãos realizada em apenas um ambiente; III) estimar parâmetros genéticos e ganhos de seleção para TFe, TZn, FB, PB e TC; IV) estimar correlações genéticas, fenotípicas e ambientais entre caracteres de qualidade de grãos e PG; V) Selecionar linhagens-elite de feijoeiro-comum do grupo carioca superiores para qualidade de grãos. Foram avaliadas 81 linhagens de feijoeiro-comum do grupo carioca em Ensaios Preliminares de Linhagem (EPL) em um látice triplo 9x9, com parcelas de duas linhas de 4 metros. Nestes ensaios foram avaliados os caracteres PG, RP e M100, sendo que TFe, TZn, FB, PB e TC foram avaliados em apenas um ambiente. Neste ensaio foram estimados os parâmetros genéticos, fenotípicos e os ganhos esperados com a seleção. As 20 linhagens superiores foram selecionadas considerando TFe, TZn, FB, PB e TC que foram posteriormente avaliadas nos Ensaios de Validação (EV), em 9 ambientes, em delineamento de blocos casualizados, com três repetições e parcelas de uma linha de 4 metros. Foram realizadas análises de variância individuais e conjunta para todos os caracteres de qualidade de grãos e PG. Foram estimadas correlações genéticas, fenotípicas e ambientais entre TFe, TZn e PG. A adaptabilidade e estabilidade fenotípica foram estimadas pelo método de Nunes et al. (2005) e a seleção dos genótipos superiores para qualidade de grãos, realizada com base no índice de Mulamba & Mock (1978). Foi constatado efeito significativo de ambientes, genótipos e da interação de genótipos com ambientes para todos os caracteres avaliados. A avaliação preliminar dos caracteres de qualidade de grãos foi eficiente e suficiente para a seleção de genótipos superiores para TFe, FB, PB e TC, no entanto, devido a interação GxA detectada, recomenda-se que a avaliação seja feita em pelo menos dois ambientes. Com base na variabilidade genética existente, ganhos genéticos podem ser obtidos com a seleção para TFe, TZn, PB e TC, mas para FB a variabilidade disponível é um desafio para a obtenção de ganhos importantes. Foram constatadas correlações genéticas e fenotípicas entre TFe e TZn, o que possibilita ganhos simultâneos para esses caracteres. As linhagens CNFC 16627, CNFC 16518, CNFC 16602, CNFC 16615 e CNFC 16520 são indicadas para o melhoramento da qualidade de grãos em feijão carioca.
Jacela, Jay Yanoria. "Effects of porcine circovirus type 2 vaccination, biofuel co-products, and dietary enzymes on finishing pig performance under field conditions." Diss., Manhattan, Kan. : Kansas State University, 2009. http://hdl.handle.net/2097/2216.
Full textPhung-on, Isaratat. "An investigation of reheat cracking in the weld heat affected zone of type 347 stainless steel." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1188419315.
Full textMoore, Rebecca. "The relationship between a dietary pattern high in fruits, vegetables, low fat dairy, and whole grains and low in red meat and vascular structure and function in individuals with type 2 diabetes." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439307990.
Full textTuston, Torres Sixto Stalin. "Adaptations of five pale-type grain amaranth accessions (Amaranthus caudatus) and five ataco or sangorache accessions (Amaranthus hybridus) in the cities of Otavalo and Antonio Ante." BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/5441.
Full textPetit, Julie. "Etude structure/fonction d'une albumine entomotoxique de type A1b du pois chez le riz : application à la protection contre le ravageur des stocks Sitophilus oryzae." Montpellier 2, 2006. http://www.theses.fr/2006MON20235.
Full textBhatiya, Shobhit. "A15 stoichiometry and grain morphology in rod-in-tube and tube type Nb3SN strands; Influence of strand design, heat treatments and ternary additions." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1268231937.
Full textLaurent, Marie-José. "Physico-chimie du frittage basse temperature d'un materiau dielectrique de type iii a base de titanate de strontium dope." Caen, 1988. http://www.theses.fr/1988CAEN2008.
Full textWittenbecher, Clemens [Verfasser], and Matthias Bernd [Akademischer Betreuer] Schulze. "Linking whole-grain bread, coffee, and red meat to the risk of type 2 diabetes : using metabolomics networks to infer potential biological mechanisms / Clemens Wittenbecher ; Betreuer: Matthias Bernd Schulze." Potsdam : Universität Potsdam, 2017. http://d-nb.info/1218403047/34.
Full textWittenbecher, Clemens Verfasser], and Matthias Bernd [Akademischer Betreuer] [Schulze. "Linking whole-grain bread, coffee, and red meat to the risk of type 2 diabetes : using metabolomics networks to infer potential biological mechanisms / Clemens Wittenbecher ; Betreuer: Matthias Bernd Schulze." Potsdam : Universität Potsdam, 2017. http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-404592.
Full textMoberg, Dennis. "Inclusiveness in texts in the EFL classroom : A study of English teachers’ inclusion of different parts of the world in texts used in the lower grades." Thesis, Högskolan i Gävle, Avdelningen för humaniora, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-35975.
Full textGalinier, Thomas. "Analyse multifactorielle de la performance des cultures - Méthodes et automatisation pour l’intégration de données agronomiques, environnementales, sociales et économiques - Exemple du maïs grain non-irrigué en Amérique du Nord." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLC026.
Full textThe global demand for food and energy is constantly increasing. As access to spare arable land is limited, growers will have to produce about 70% more per hectare by 2050. Optimization and rationalization of the agricultural production systems is then critical to ensure food security under sustainable conditions. The agricultural community would be in a position to optimize crop performance by better understanding the cropping systems, especially regarding potential production and limiting factors. In this context, the ability to characterize crop growing conditions in regards to their impacts on potential yield and yield gap is important in order to identify margins of progress and propose improved farming systems.An approach is proposed to characterize the crop environment of large geographical areas taking into consideration the impact on crop performance of the key resources for plant development (temperature, solar radiation, water and nitrogen). The level of availability of each resource was estimated by using crop modeling approaches integrating weather data and soil characteristics as inputs. The efficiency of use of the available resources was characterized by crop practices, grower strategy and grower technical environment. A generic integration procedure was established and used to describe corn production for grain in North America from 1991 to 2013. The resulting dataset covers 84% of the total corn planted area, deciphered in 1,558 elementary spatial units, for a total of 28,303 independent scenarios. Such a method combines and harmonizes, at scale, yield observations from agricultural statistics with a large set of relevant descriptors of growing conditions.A subset of 21 main limiting factors was identified through variable-selection analysis to explain 66% of the observed yield-gap variability. The relaxed lasso method resulted in an interesting compromise between interpretability and prediction ability. The selected descriptors highlighted the contribution of crop management in yield-gap variability, especially regarding levels of crop intensification and the technical environment of growers. The third main factor is water availability and resulting drought. The integration of knowledge in crop physiology into descriptor design significantly improved the interpretability of the proposal and the confidence of end-users in the approach.Yield-gap patterns were used to identify the set of most frequent Environment Types. Two approaches were proposed: one focused on crop physiology drivers and another also considered market-size homogeneity among Environment Types. This resulted in 11 Environment Types based on crop physiology drivers and 8 Environment Types when combining crop physiology drivers and market constraints. Crop-physiology Environment Types are very informative on the historical evolution of cultural practices and the changes in grower strategies over the studied period. Such categorization of growing conditions demonstrated the ability to reproduce field expertise and support genotype evaluation. Three business Use Cases were used to illustrate the interest of the approach in (i) describing the environmental history of a market, (ii) defining relevant Target Population Environments (TPE) and (iii) evaluating the environmental sampling relevance of Multi-Environment Trials (MET)