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Dissertations / Theses on the topic 'Nitrate de calcium'

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Published: 24 March 2023

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1

Mammoliti, Laura. "Examination of the mechanism of corrosion inhibition by calcium nitrite and calcium nitrate-based admixtures in concrete." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ65250.pdf.

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2

Hill, Russell L. (Russell Lee). "The Study of Hydration of Fly Ash in the Presence of Calcium Nitrate and Calcium Formate." Thesis, University of North Texas, 1994. https://digital.library.unt.edu/ark:/67531/metadc278140/.

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This research was designed to investigate the hydration reaction of fly ash when exposed to water. The effects that calcium nitrate and calcium formate have on the hydration reactions were also examined.

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3

Silveira, Raiza Felismino. "Energy partition and nitrogen utilization by growing goats fed encapsulated calcium nitrate /." Jaboticabal, 2017. http://hdl.handle.net/11449/151442.

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Orientador: Kleber Tomás de Resende<br>Coorientador: Marcia Helena Machado da Rocha Fernandes<br>Banca: Rafael Canonenco de Araújo<br>Banca: Carla Joice Härter<br>Resumo: O nitrato de cálcio encapsulado (NCE) tem sido estudado nos últimos anos como uma fonte de nitrogênio não proteico (NNP) e representa uma alternativa ao uso do hidrogênio livre no ambiente ruminal, reduzindo assim a emissão de metano e possibilitando uma maior eficiência no uso da energia. Assim, o objetivo do presente estudo foi avaliar o uso do nitrato de cálcio encapsulado como substituto do farelo de soja na partição de e

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4

Lehle, Fredric, W. C. Hofmann, and Bonnie Guhy. "Effect of Calcium Nitrate and Calcium Chloride on the Primary Root Growth of Cotton Seed Imbibed at Low Temperatures." College of Agriculture, University of Arizona (Tucson, AZ), 1987. http://hdl.handle.net/10150/204457.

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The effect of various concentrations of calcium nitrate and calcium chloride on the primary root (radicle) growth of cotton seed at a suboptimal temperature was evaluated 14 days after imbibition onset under laboratory conditions. Both forms of calcium at concentrations up to 10 mM enhanced cotton seed radicle growth at 15 C.

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5

Bugatti, Ederson Pastor. "Recuperação do cálcio contido em resíduos de incubatório por meio de tratamentos ácidos." Universidade Estadual do Oeste do Paraná, 2016. http://tede.unioeste.br/handle/tede/2951.

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Milan, Vraneš. "Obrazovanje hloridnih i bromidnih kompleksa kobalta(II) u električki nesimetričnim vodenim rastopima soli." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2009. https://www.cris.uns.ac.rs/record.jsf?recordId=83678&source=NDLTD&language=en.

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U ovoj doktorskoj disertaciji proučavano je građenje kompleksa kobalta(II) sa hloridnim i  bromidnim jonima u vodenim rastopima tipa xCa(NO3)2·zH<sub>2</sub>O – (1-x)NH<sub>4</sub>NO<sub>3 </sub>pri različitom sastavu soli (x= 0,3 – 0,9), različitom sadržaju vode (z= 2,67 – 6,67) i na različitim temperaturama (45, 55 i 65<sup>o</sup>C).Istraživanja su imala za cilj proučavanje reakcije građenja kompleksa kobalta(II) sa hloridnim i bromidnim jonima u vodenim rastopima xCa(NO<sub>3</sub>)<sub>2</sub>·zH<sub>2</sub>O –

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7

Moss, James Russell. "Assessment of Vineyard Nitrogen Management upon Grape Chemistry." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/78150.

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To combat excessive vine vigor, many vintners have employed intensive cover cropping techniques. While cover crops provide a multitude of benefits to the farming system, they can compete for nutrients and water. The seemingly ubiquitous adoption of cover crops in the Eastern United States has led to vines and grape musts which are deficient in nitrogen (N). A must that is deficient in yeast assimilable nitrogen (YAN) can lead to the production of off aromas and stuck or sluggish fermentations. It has also been suggested that musts with limited amino nitrogen sources can result in wines with le

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8

Sane, Mukta. "Role of Large Conductance, Calcium-Activated Potassium Channels (BKCa) in Vasorelaxation of Nitrate Tolerant Mesenteric Arteries." Diss., North Dakota State University, 2016. http://hdl.handle.net/10365/25665.

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9

Cassiano, Eduardo Cuelar Orlandi. "Nitrato de cálcio como mitigador da emissão de metano em bovinos." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/10/10135/tde-27022018-114715/.

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Objetivou-se avaliar o uso de nitrato de cálcio (NC) na alimentação de ruminantes com vistas à mitigação da emissão de metano. Foram utilizadas quatro fêmeas de cada subespécie, Bos taurus taurus (Holandês) e vBos taurus indicus (Nelore), com peso médio inicial de 909,0 kg ± 72,0 e 387,0 kg ± 25,5, respectivamente, alimentadas com diferentes níveis de nitrato de cálcio na dieta (0%, 1%, 2% e 3%), sendo utilizado delineamento quadrado latino 4X4 replicado. O experimento teve duração de 4 períodos de 28 dias cada. Foram avaliados, a ingestão, excreção e digestibilidade de nutrientes, p

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10

Kannan, Sarath. "Experimental Investigation of Lithium Nitrate Trihydrate and Calcium Chloride Hexahydrate as Salt Hydrate PCMs for Thermal Energy Storage." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1563273912013393.

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11

Tanamati, Fábio Yomei [UNESP]. "Nitrogênio e potássio em cobertura na nutrição e produtividade do alho vernalizado livre de vírus e qualidade do alho minimamente processado." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/146744.

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Plusquellec, Gilles. "Analyse in situ de suspensions de silicate de calcium hydraté : application aux interactions ioniques à la surface des particules." Thesis, Dijon, 2014. http://www.theses.fr/2014DIJOS046/document.

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Cette étude a pour objectif d’étudier expérimentalement les interactions entre différents anions (chlorure, bromure, nitrate et sulfate) et le silicate de calcium hydraté (C-S-H) afin de construire un modèle thermodynamique capable de prédire cette interaction. Des suspensions de C-S-H synthétisées ont été mises en contact avec différents types de sel (sel de calcium ou d’alcalins). L’influence de la température et de l’incorporation d’aluminium au sein de la structure du C-S-H ont également été prises en compte.L’utilisation d’une méthode d’analyse classique de ce type de système (c’est-à-dir

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13

Camurlu, Hasan Erdem. "Carbothermic Production Of Hexagonal Boron Nitride." Phd thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/3/12607808/index.pdf.

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Formation of hexagonal boron nitride (h-BN) by carbothermic reduction of B2O3 under nitrogen atmosphere at 1500oC was investigated. Reaction products were subjected to powder X-ray diffraction analysis, chemical analysis and were examined by SEM. B4C was found to exist in the reaction products of the experiments in which h-BN formation was not complete. One of the aims of this study was to investigate the role of B4C in the carbothermic production of h-BN. For this purpose, conversion reaction of B4C into h-BN was studied. B4C used in these experiments was produced in the same conditions that

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14

Meagher, Thomas F. "Effect of Dosage of Non-Chloride Accelerator versus Chloride Accelerator on the Cracking Potential of Concrete Repair Slabs." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/5743.

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Due to strict placement time and strength constraints during the construction of concrete pavement repair slabs, accelerators must be incorporated into the mixture design. Since the most common accelerator, calcium chloride, promotes corrosion of concrete reinforcement, a calcium nitrate-based accelerator was studied as an alternative. To replicate mixtures used in the field, commercial accelerators commonly used in concrete pavement repair slabs were used in the current study. Crack risk of different mixtures was assessed using modeling and cracking frame testing. HIPERPAV modeling was conduc

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15

Mudziwa, Nyengedzeni. "Yield and quality responses of Egyptian white garlic (Allium sativum L.) and wild garlic (Tulbaghia violacea Harv.) to nitrogen nutrition." Diss., University of Pretoria, 2010. http://hdl.handle.net/2263/28945.

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Allium sativum and Tulbaghia violacea are some of the most important medicinal plants used by South African traditional healers for the treatment of flu, fever, cold, tuberculosis, asthma and many more diseases. However, growth, yield and quality are constrained by excessive and under fertilization. This study was carried out to determine, firstly, the effect of N source (ammonium sulphate and calcium nitrate) on yield and quality of A. sativum and T. violacea plants. Secondly, to determine the best season for harvesting T. violacea and lastly, to determine the antifungal effects of A. sativum

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16

Yamada, Thaís Mariana. "Remediação de sedimentos eutróficos da Represa Ibirité (MG) pela adição de nitrato e Phoslock : experimentos em laboratório." Universidade Federal de São Carlos, 2010. https://repositorio.ufscar.br/handle/ufscar/6206.

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Janke, Helena. "Avaliação ecotoxicológica da adição de nitrato em sedimentos eutrofizados da Represa Ibirité (Betim MG): experimentos em microcosmos." Universidade Federal de São Carlos, 2009. https://repositorio.ufscar.br/handle/ufscar/1953.

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Made available in DSpace on 2016-06-02T19:31:43Z (GMT). No. of bitstreams: 1 2493.pdf: 1820155 bytes, checksum: c4fbdc0a3fdb7a9316ba5c6c6a6905c8 (MD5) Previous issue date: 2009-05-15<br>Universidade Federal de Sao Carlos<br>The objective of the present dissertation was to make a toxicity assessment of the application of calcium nitrate solution as a remediation procedure for sediments of a eutrophic aquatic ecosystem. The study was carried out using microcosms with superficial sediments and water from sediment-water interface of the Ibirité Reservoir located in the metropolitan area of Belo

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18

Le, Vu Briac. "La biocalcification dans l'océan actuel à travers l'organisme modèle Emiliania huxleyi : quand la mer devient blanche." Paris 6, 2005. http://www.theses.fr/2005PA066523.

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19

Cheikh-Zouaoui, Mustapha. "Contribution à l’étude de la cinétique d’hydratation au jeune âge des bétons à hautes résistances." Cergy-Pontoise, 2008. http://biblioweb.u-cergy.fr/theses/08CERG0372.pdf.

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La prévision de la résistance à court terme du béton est essentielle dans le domaine du génie civil. En effet la confection d’un béton ayant la meilleure résistance mécanique possible au jeune âge est nécessaire pour répondre aux impératifs de construction actuels (décoffrage rapide, mise en précontrainte le plus tôt possible, bétonnage par temps froid,…. ). Le développement de tels bétons passe, en général par l’utilisation d’adjuvants associés à des additions minérales pouzzolaniques parmi lesquelles la fumée de silice. Or ce sous-produit de l’industrie du silicium et des alliages ferro-sili

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20

Rasul, Sumaira. "Characterization and role of nitric oxide production in Arabidopsis thaliana defense responses induced by oligogalacturonides." Phd thesis, Université de Bourgogne, 2011. http://tel.archives-ouvertes.fr/tel-00866896.

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Nitric oxide (NO) regulates a wide range of plant processes from development toenvironmental adaptation. In this study, NO production and its effects were investigated in aplant-pathogen context. The production of NO following Arabidopsis treatment witholigogalacturonides (OGs), an endogenous elicitor of plant defense, was assessed using the NOsensitive probe 4, 5-diamino fluorescein diacetate. Pharmacological and genetic approaches wereused to analyze NO enzymatic sources and its role in the Arabidopsis thaliana /Botrytis cinereainteraction. We showed that NO production involves both a L-argi

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21

Gamble, Joanne M. "Field evaluation of calcium nitrite and chloride in Ohio prestressed concrete box beam bridge girders." Ohio : Ohio University, 1996. http://www.ohiolink.edu/etd/view.cgi?ohiou1178652761.

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22

Moss, James Russell. "Evaluation of Nitrogen Management Schemes in Cover Cropped Vineyards." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/80510.

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Vineyards in the Eastern United States are often prone to excessive vegetative growth. In order to suppress excessive vine vigor, many viticulturists have employed cover cropping strategies. Cover crops provide a myriad of agronomic benefits, however they are known to compete with the vine for water and nutrients. Due to the widespread use of cover crops in Eastern vineyards, many vineyards experience nitrogen (N) deficiencies in both the vegetative vine tissue and yeast assimilable nitrogen (YAN) in the juice. Soil applications of calcium nitrate and foliar applications of urea were asses

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23

Boucetta, Hassiba. "Mécanismes de cristallisation du dioxyde de ruthénium lors de la vitrification des déchets de haute activité." Thesis, Montpellier 2, 2012. http://www.theses.fr/2012MON20031.

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Le ruthénium, issu du retraitement des combustibles usés de type Uranium-Oxyde a une très faible solubilité dans les verres de conditionnement de déchets radioactifs. Il précipite dans ces verres à l'état liquide sous forme de particules de RuO2 polyédrique ou aciculaire. Parce que leurs morphologies et leurs dispersions peuvent influencer les propriétés physico-chimiques des verres, la connaissance et le contrôle de leur mécanisme de formation sont d'extrême importance. Tout l'enjeu de cette thèse est de déterminer les différents chemins réactionnels de transformation du ruthénium, présent au

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Brigham, Russell D. "Assessing the Effects of Lake Dredged Sediments on Soil Health: Agricultural and Environmental Implications on Midwest Ohio." Bowling Green State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1593902126203743.

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25

Ozkenter, Ali Arda. "Effect Of Calcium Oxide Addition On Carbothermic Formation Of Hexagonal Boron Nitride." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610740/index.pdf.

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Hexagonal boron nitride (h-BN) formation by carbothermic reduction of B2O3 under nitrogen atmosphere at 1500&deg<br>C and effect of CaO addition into the initial B2O3 &amp<br>#8211<br>active C mixture were investigated during this study. Reaction products were characterized by powder X-ray diffraction, scanning electron microscopy (SEM) and quantitative chemical analysis. Main aim of this study was to investigate the presence of a second reaction mechanism that catalytically affects h-BN formation during CaO or CaCO3 addition into the initial mixture. It was found that similar to CaCO3 addit

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26

Gerger, Andrew Phillip. "Growth and characterization of gallium nitride on lattice-matched magnesium calcium oxide." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0024993.

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Verbraeken, Maarten Christiaan. "Doped alkaline earth (nitride) hydrides." Thesis, St Andrews, 2009. http://hdl.handle.net/10023/714.

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Tulyapitak, Tulyapong. "CURE AND MECHANICAL PROPERTIES OF CARBOXYLATED NITRILE RUBBER (XNBR) VULCANIZED BY ALKALINE EARTH METAL COMPOUNDS." University of Akron / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=akron1158067153.

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Curie, Florence. "Rétention de nitrate dans les zones humides riveraines : rôle des facteurs hydrologiques, géomorphologiques et biogéochimiques : approche multi-échelle dans le bassin de la Seine." Paris 6, 2007. http://www.theses.fr/2006PA066353.

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Fernandes, Maria do Carmo de Alustau. "Caracterização do efeito vasodilatador dos nitratos orgânicos GTN, NTHF, NCOE e BIS-NTHF em artéria e veia isoladas de cordão umbilical humano." Universidade Federal da Paraíba, 2015. http://tede.biblioteca.ufpb.br:8080/handle/tede/8853.

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Submitted by Maike Costa (maiksebas@gmail.com) on 2017-02-24T14:06:25Z No. of bitstreams: 1 arquivo total.pdf: 3861832 bytes, checksum: 51f845d5047e9aaddd5d14c6395b40a2 (MD5)<br>Made available in DSpace on 2017-02-24T14:06:25Z (GMT). No. of bitstreams: 1 arquivo total.pdf: 3861832 bytes, checksum: 51f845d5047e9aaddd5d14c6395b40a2 (MD5) Previous issue date: 2015-08-31<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq<br>Human umbilical cord vessels (HUCV), often considered biological wa

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Balasus, Antje. "Umwelt- und Ertragswirkungen der Stickstoffdüngung beim Anbau von Weiden und Pappeln auf Ackerflächen unter Berücksichtigung phytopathologischer Aspekte." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-158254.

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Mit dem wachsenden Energiebedarf der Weltbevölkerung, Problemen mit der Kernenergie und begrenzten fossilen Energieträgern ergibt sich die Notwendigkeit, alternative ökonomische und nachhaltige Energiequellen zu suchen. Weiden und Pappeln im Kurzumtrieb können als Bestandteil des Erneuerbaren Energiemix eine Ergänzung zu wind- und sonnenscheinabhängigen Anlagen sein. Im Vergleich zu 1-jährigen Ackerkulturen haben sie geringere Ansprüche an Dünger, Herbizide, Pflanzenschutzmittel und die Bodenbearbeitung. Für die Umwelt- und Energiebilanz sind die im Herstellungsprozess eingesetzte Energie und

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Ferreira, Rafael Bibiano 1992. "Brotação, produção e sazonalidade de pessegueiros submetidos a doses de fertilizante foliar nitrogenado e nitrato de cálcio /." Botucatu, 2017. http://hdl.handle.net/11449/150279.

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Orientador: Sarita Leonel<br>Banca: Marco Antonio Tecchio<br>Banca:Luis Lessi dos Reis<br>Resumo: A escolha dos cultivares mais adaptados, de menor exigência em frio, é fundamental para o cultivo do pessegueiro em regiões subtropicais do Brasil. Estas regiões, de inverno ameno, não atende a necessidade em frio destas plantas, sendo necessário a utilização de técnicas alternativas, como a aplicação de produtos químicos posteriormente a poda de frutificação, para induzir a brotação das plantas. Entretanto, no mercado ainda existem poucos produtos disponíveis para esta finalidade, restringindo as

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Abosrra, L. R. "Corrosion of steel reinforcement in concrete : corrosion of mild steel bars in concrete and its effect on steel-concrete bond strength." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/5417.

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This thesis reports on the research outcome of corrosion mechanism and corrosion rate of mild steel in different environments (saline, alkaline solutions and concrete media) using potentiodynamic polarization technique. The study also included the effect of corrosion on bond strength between reinforcing steel and concrete using pull-out test. Corrosion of mild steel and 316L stainless steel with different surface conditions in 1, 3 and 5% saline (NaCl + Distilled water) was investigated. Specimens ground with 200 and 600 grit silicon carbide grinding paper as well as 1μm surface finish (polish

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Mouselmani, Rim. "Reduction of Organic Functional Groups Using Hypophosphites." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1241/document.

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Récemment, les exigences en chimie ont évolué rapidement, car le développement durable a retenu plus d'attention. Les principes de la chimie verte ont encouragé les chimistes à développer des produits chimiques et des procédés qui réduisent ou éliminent les substances dangereuses. Les travaux de recherche décrits dans cette thèse portent sur le développement de nouveaux systèmes réducteurs en utilisant des hypophosphites comme substituts aux agents réducteurs toxiques traditionnels.Pour atteindre cet objectif, les nitriles aromatiques ont été réduits en aldéhydes correspondants par la formatio

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Jorge, Renato Atilio 1950. "Troca ionica entre pectinatos de aluminio e nitratos de calcio, manganes, zinco, cobre e ferro (III) em solução aquosa." [s.n.], 1985. http://repositorio.unicamp.br/jspui/handle/REPOSIP/250313.

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Orientador : Aecio Pereira Chagas<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-07-16T16:10:25Z (GMT). No. of bitstreams: 1 Jorge_RenatoAtilio_D.pdf: 5293011 bytes, checksum: 5e21d24d44aad1d6c1df338dbd860f0c (MD5) Previous issue date: 1985<br>Doutorado

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Chartrand, Jonathan. "Comparaison de méthodes d'estimation pour le calcul de la charge en nitrate à l'exutoire de petits bassins versants en milieu agricole." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25860/25860.pdf.

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37

Schenck, Charles. "Pollution saline de l'eau souterraine et de l'air liee aux activites economiques en haute alsace : incidences agronomiques." Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR13220.

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De par ses caracteristiques physiques, la vallee de l'ill en haute alsace est particulierement sensible a la pollution. Dans cette region a vocation industrielle et agricole la contazmination du milieu se traduit par une forte mineralisation de l'eau souterraine et des retombees atmospheriques solubles, diluees mais acides. La composition naturelle: bicarbonatee calcique de l'eau de la nappe phreatique est modifiee par une charge chloro-sodique et nitrique non negligeable. Quant aux retombees, elles provoquent au sol, des apports d'elements mineraux parmis lesquels predominent les chlorures, l

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Velarde, Ch André, and P. Carlos Fosca. "Estudio de la influencia del nitrito de calcio como agente inhibidor de la corrosión." Revista de Química, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/99496.

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Chaussumier, Michel. "Un modele statistique de calcul en fatigue multiaxiale pour les pieces mecaniques en acier nitrure." Paris, ENSAM, 1999. http://www.theses.fr/1999ENAM0045.

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La nitruration est un procede largement utilise pour renforcer en fatigue les pieces mecaniques fortement chargees. Ce renforcement est la consequence de deux effets. Le premier reside dans les modifications metallurgiques dans l'epaisseur de la couche nitruree. Le second effet est relatif aux contraintes residuelles induites par le traitement. Ce champ de contraintes etant multiaxial, tout calcul en fatigue passe par l'utilisation d'un critere de fatigue multiaxiale comme celui de crossland ou celui de dang van. La prevision de la duree de vie necessite alors d'etendre ces criteres au domaine

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Kulkarni, Aniket [Verfasser], and Martin [Akademischer Betreuer] Jansen. "Structure prediction of lithium, calcium carbide, and (per)nitride compounds at ambient and high pressure on the ab-initio level / Aniket Kulkarni. Betreuer: Martin Jansen." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2012. http://d-nb.info/102604328X/34.

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Pelat, Giulia. "Analisi Calorimetrica di esplosivi non convenzionali utilizzati per atti malevoli." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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L’obiettivo della tesi è stato la valutazione dell'efficienza di un IED (Improvised Explosive Device), ossia esplosivi realizzati artigianalmente. Da una analisi bibliografica è emerso che uno dei più comuni IED è l’ANFO (Ammonium Nitrate + Fuel Oil). Si è analizzato inizialmente una miscela costituita da Nitrato di Ammonio e Nonano, scelto come componente rappresentativo dei combustibili, a cui è stato aggiunto Carbonato di Calcio per valutare il suo effetto inertizzante. Analizzando infine un fertilizzante industriale (BCR178) composto principalmente da Carbonato di Calcio e Nitrato di A

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Viavattene, Christophe. "Exploitation socio-économique de la modélisation souterraine du transfert des nitrates à l'échelle du bassin de la Seine." Phd thesis, École Nationale Supérieure des Mines de Paris, 2006. http://pastel.archives-ouvertes.fr/pastel-00001750.

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Avec les lois sur l'eau de 1964 et 1992, la France s'est dotée d'une gestion intégrée et décentralisée de la ressource en eau, organisée autour de six bassins hydrographiques. Sans remettre en cause les fondements de cette organisation, la Directive Cadre sur l'Eau (DCE), adoptée le 22 décembre 2000, renforce cette gestion en fixant des objectifs environnementaux planifiés, en l'organisant au sein de sous entités hydrographiques, les masses d'eau, et en prônant l'utilisation de l'analyse économique. Dès 2009, les Agences de l'Eau doivent définir un plan de gestion fixant les objectifs à attein

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Aboab, Bettina. "Etude du couplage vibronique dans le cas d'un système XY3Z de symétrie C3V soumis à effet Jahn-Teller : application au calcul du couplage vibronique dans l'état excite 3E du radical methyl-nitrène CH3N." Pau, 1992. http://www.theses.fr/1992PAUU3019.

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Notre travail est consacré au traitement du couplage vibronique. Après avoir présenté l'essentiel des méthodes théoriques utilisées pour résoudre ce problème, nous nous sommes intéressé au traitement du couplage vibronique Jahn-Teller dynamique E(3Al+3E) au voisinage du point de symétrie C3V d'un système XY3Z présentant une double dégénérescence d'espace. Nous avons ensuite appliqué ce traitement au calcul du couplage vibronique dans l'état excité 3E du radical méthyl-nitrène Ch3N

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Tobar, Garay Alexis. "Compararción de la eficacia clínica de dentífricos a base de arginina al 8%/ carbonato calcio/ monofluorfosfato de sodio 1450 ppm versus nitrato de potasio al 5%/ fluoruro de sodio 2500 ppm en el tratamiento de la hipersensibilidad dentinaria : Ensayo clínico aleatorio." Tesis, Universidad de Chile, 2015. http://repositorio.uchile.cl/handle/2250/137434.

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Trabajo de Investigación Requisito para optar al Título de Cirujano Dentista<br>Autor no autoriza el acceso a texto completo de su documento<br>Introducción: La Hipersensibilidad dentinaria (HSD) es un dolor breve y agudo frente a estímulos térmicos, químicos, táctiles u osmóticos, que no puede ser adscrito a otro tipo de patología. Existen variados tratamientos para HSD, pero hasta la fecha ninguno ha sido comprobadamente eficaz. Uno de los compuestos más utilizados a través de los años es el Nitrato de Potasio; sin embargo, últimamente ha emergido un desensibilizante nuevo y promisorio:

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Kauark, Leite Luiz Augusto. "Réflexions sur l'utilité des modèles mathématiques dans la gestion de la pollution diffuse d'origine agricole." Phd thesis, Ecole Nationale des Ponts et Chaussées, 1990. http://tel.archives-ouvertes.fr/tel-00529963.

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Cette étude comporte deux objectifs principaux. Le premier est de contribuer à l'évaluation des deux approches, empirique et conceptuelle, de modélisation du transport de polluants diffus d'origine agricole quant à leur capacité à représenter l'évolution temporelle des concentrations et des flux des matières en suspension, des nitrates et du phosphore, à l'exutoire d'un petit bassin versant agricole. Nous avons validé deux modèles représentatifs de chacune des approches ; le premier modèle est inspiré des modèles CREAMS et SWRRB et le deuxième est modèle le HSPF. Le deuxième objectif est d'ana

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Nielsen, Jennifer I. "Remediation of brine-contaminated soil using calcium nitrate, gypsum, and straw." 2013. http://hdl.handle.net/1993/19453.

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Salt-affected soils from point source brine contamination are common in the active oil field in SE Saskatchewan. A remediation process that included dewatering by sub-surface tile drains, application of surface amendments (calcium nitrate and straw), and growing forages has been successful but not previously examined. In a field study of two remediation sites, the changes in vegetation, soil salinity, and groundwater were assessed using geo-referenced electromagnetic (EM) maps (EM38h, EM38v, and EM31v), piezometers, and soil sampling. A laboratory soil core leaching experiment studied the effe

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Chan, Che-Ming, and 詹哲明. "Effects of Growth Retardant, Calcium Nitrate and Pinching on the Quality of Pot Poinsettia." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/97257908152591741727.

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碩士<br>國立中興大學<br>園藝學系<br>91<br>Euphorbia publcherrima Willd. ex ‘Pepride’, ‘Eckespoint Freedom’ and ‘Winter Rose’ were used in this study. The objective is to investigate the effect of growth retardant, Ca(NO3)2 treatment and pinching types on the quality of poinsettias. The plant height, dry weight, fresh weight, growth of shoots and leaves area of three cultivar were decreased along with the concentration of paclobutrazol, but anthesis were apeared earlier. When ‘Pepride’, ‘Eckespoint Freedom’ and ‘Winter Rose’ were treated with 80 ppm resulted in plant were half height of controll

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Wang, Ming Hung, and 王銘鴻. "Effects of Foliar Spray with Cytokinin and Calcium Nitrate on Growth and Inflorescence Development and Quality of Oncidiums Honey Angel." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/06055569177509458499.

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碩士<br>國立屏東科技大學<br>農園生產系所<br>103<br>Abstract Student ID：N10211009 Title of thesis：Effects of Foliar Spray with Cytokinin and Calcium Nitrate on Growth and Inflorescence Development and Quality of Oncidiums Honey Angel. Total page：65 Name of Institute：Department of Plant Industry Graduate date：2015.5 Degree Conferred：Master Name of student：Ming- Hung Wang Adviser：Chung - Ruey Yen Ph.D. The contents of abstract in this thesis： Effects of foliar spray cytokinins (kinetin and BA) and calcium on growth and flowering in Oncidium Onc. “Honey Angel” were studied to promote off-seas

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Pan, Ling-Huey, and 潘玲慧. "Effects of the application of calcium nitrate on the growth and the development of poinsettia (Euphorbia pulcherrima Willd. ex Klotzsch )." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/88446075603350993998.

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碩士<br>國立中興大學<br>園藝學系<br>82<br>Experiments were conducted to investigate the effects of dif- ferent concertrations of calcium nitrate treatments on the growth and development,nutrition, stem strength and plant morphology of poinsettia(Euphorbia plucherrima Willd. ex Klotzsch) cvs. Supjibi, Peter Star and Angelika. Results indicated that different concentrations of calcium nitrate treatments on the height, width, leaf number, total leaf area and vegetable growth were not significant, however

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Reeder, Julie A. "The effects on the performance of broilers consuming calcium, potassium, and sodium nitrates and nitrites from the drinking water." Thesis, 1996. http://hdl.handle.net/1957/34903.

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Four experiments were carried out with broiler chicks from day-old to three or four weeks of age to assess the effects of nitrates and nitrites from calcium, potassium, and sodium salts in the drinking water of broilers on growth, body weights, feed utilization, blood chemistries, liver tissues, and lipid oxidation of breast and thigh tissues. Body weights were lower (P<.05) among chicks consuming calcium nitrate than those of chicks consuming sodium nitrate or the control. Chicks consuming calcium nitrate (Ca(NO��)��) at 1000 ppm had lower (P<.05) body weights than those drinking Ca(NO��)�

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