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Dissertations / Theses on the topic 'Ni2P'

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Published: 4 June 2021
Last updated: 1 February 2022

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1

Lee, Yong-Kul. "Reactivity and Structure of Supported Nickel Phosphides (Ni2P) in Deep Hydrodesulfurization Catalysis." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/30228.

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This dissertation describes preparation and characterization of Ni2P catalysts and their application in deep hydrodesulfurization (HDS) of a model sulfur compound, 4,6-dimethyldibenzothiophene (4,6-DMDBT), one of the most refractory S-compounds. This topic is of great importance in addressing recently enacted environmental regulations limiting the sulfur content in fuels. The work carried out includes synthesis of Ni2P on different siliceous supports, SiO2, MCM-41, and ultra-stable Y zeolite (USY). It also includes determining the characteristics of the supported Ni2P catalysts with a wide
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2

Gott, Travis Matthew. "Spectroscopic and Kinetic Studies of Hydrodenitrogenation and Hydrodesulfurization over Supported Nickel Phosphide (Ni2P)." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/29536.

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This dissertation describes preparation and characterization of Ni2P catalysts and their application in hydrodesulfurization (HDS) and hydrodenitrogenation (HDN). The work carried out includes synthesis of Ni2P on different siliceous supports, SiO2 and MCM-41. It also includes characterization of these catalytic materials using X-ray diffraction (XRD), temperature-programmed reduction (TPR), Fourier transform infrared (FTIR) spectroscopy and X-ray absorbance fine structure (XAFS) spectroscopy. In situ FTIR was employed to study the acidity of Ni2P/SiO2 and probe the catalytic sites involved
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3

Molinari, Chiara. "Deidrogenazione catalitica di cherosene per la produzione di H2 "on-board": studio della disattivazione dei catalizzatori." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/4302/.

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Questo lavoro di tesi è stato sviluppato nell’ambito del progetto europeo “GREEN AIR” (7FP – Transport), svolto in collaborazione con diversi enti europei, pubblici e privati. Si tratta di un programma finalizzato alla produzione di idrogeno “on – board” per deidrogenazione catalitica di cherosene avio, da alimentare ad un sistema di fuel cells per la produzione dell’energia elettrica necessaria al funzionamento della strumentazione e dei sistemi di comando degli aeroplani. In questo lavoro di tesi ci si è concentrati sullo studio dei meccanismi di reazione e disattivazione coinvolti nella rea
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Dierks, Michael [Verfasser], Ferdi [Gutachter] Schüth, and Martin [Gutachter] Muhler. "Hydrophic Ni2P/SiO2 catalysts with improved stability for bio-oil hydroxygenation / Michael Dierks ; Gutachter: Ferdi Schüth, Martin Muhler ; Fakultät für Chemie und Biochemie." Bochum : Ruhr-Universität Bochum, 2018. http://d-nb.info/1154307670/34.

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Gonçalves, Vinicius Ottonio Oliveira. "Hydrodésoxygénation de composés phénoliques modèles. Évaluation de phases actives : sulfures, oxyde, métallique et phosphure." Thesis, Poitiers, 2017. http://www.theses.fr/2017POIT2266/document.

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Dans une bioraffinerie, la biomasse peut être transformée par différents procédés (thermiques, chimiques et biochimiques) en carburants et en produits chimiques à haute valeur ajoutée. Plus spécifiquement, le procédé catalytique d'hydrodésoxygénation (HDO) devrait permettre de valoriser à la fois les bio-huiles obtenues par pyrolyse en biocarburants, ainsi que les composés aromatiques oxygénés issus de la dépolymérisation de la lignine en aromatiques simples.Afin de modéliser la désoxygénation de ces fractions, les isomères du crésol (ortho-, méta- et para-crésol) ont été choisis comme molécul
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6

Aoki, Claudia Souto Cattani. "Eletrodeposição de NiP e NiP + particulas por corrente pulsada." [s.n.], 2003. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263562.

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Orientador : Celia M. A. Freire<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-03T23:40:15Z (GMT). No. of bitstreams: 1 Aoki_ClaudiaSoutoCattani_M.pdf: 3685664 bytes, checksum: 596b8896d068434a61930be9d889e2e0 (MD5) Previous issue date: 2003<br>Mestrado
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Dupont, Katharina [Verfasser]. "Definable Valuations on NIP Fields / Katharina Dupont." Konstanz : Bibliothek der Universität Konstanz, 2015. http://d-nb.info/1093432799/34.

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Жиляк, Іван Дмитрович. "Акваамінодифосфати Co2+, Ni2+, Cu2+, Zn2+ та Cd2". Дис. канд. хім. наук, Нац. аграрний ун-т, 2006.

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9

Simon, Pierre. "Ordre et stabilité dans les théories NIP." Phd thesis, Université Paris Sud - Paris XI, 2011. http://tel.archives-ouvertes.fr/tel-00635463.

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Le domaine de cette thèse est la théorie des modèles, une branche de la logique mathématique.Ce travail porte sur l'étude d'une classe de théories, appelés théories NIP, qui inclut en particulier des corps ordonnés et corps valués. On y étudie plusieurs aspects. Tout d'abord, on définit une classe particulière de mesures sur ces structures, appelées "mesures génériquement stables". On montre qu'elles ont des propriétés analogues aux types dans une théorie stable, puis on donne des constructions pour en produire. On étudie aussi une forme faible de définissabilité des types. Enfin, on définit u
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Ortiz, Marby Zuley Bolaños. "Componentes conexas de grupos em teorias NIP." Universidade Federal de Goiás, 2017. http://repositorio.bc.ufg.br/tede/handle/tede/7089.

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Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2017-04-06T12:58:28Z No. of bitstreams: 2 Dissertação - Marby Zuley Bolaños Ortiz - 2017.pdf: 1515856 bytes, checksum: 739fa4d4c051b1c82f2f7ed1e4427c73 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-04-06T12:58:41Z (GMT) No. of bitstreams: 2 Dissertação - Marby Zuley Bolaños Ortiz - 2017.pdf: 1515856 bytes, checksum: 739fa4d4c051b1c82f2f7ed1e4427c73 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>
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Krishnaswami, Kughan. "Microwave-Based Approach in Non-invasive Intra-Cranial Pressure Monitoring(nICP)." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-438550.

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In the past few decades, microwave technology has been playing a pivotal role in the medical field. This technique has paved the way for significant inventions for adapting from invasive to non-invasive methods. This thesis aims to design a functional prototype of a microwave-based sensor device in a non-invasive method to monitor Intra Cranial Pressure(ICP) in clinical and non-clinical situations. The existing techniques have been invasive, involve higher risk, and cost involved in operations. A less-invasive method would eradicate most concerns said above as it would be placing an implant un
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Chapai, Ramakanta. "AN EXPERIMENTAL STUDY ON THE STRUCTURAL AND MAGNETIC PROPERTIES OF Ni2+xMn1.4-xGa0.6 AND Ni2-xMn1.4+xGa0.6 HEUSLER TYPE ALLOYS." Miami University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=miami1438381243.

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13

Browne, Thomas 1955. "Viscoelastic properties of paper in a calender nip." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28698.

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Paper in a calender nip is subjected to a pressure pulse which reduces its thickness and roughness, thus improving the product quality. Strain recovery after the nip is time-dependent, and some permanent strain remains. The material behaviour is viscoelastic; recovery depends on the pulse magnitude and duration, and does not occur immediately on exiting the nip. An improved description of the viscoelastic response to a calender pulse would allow design of adaptive control systems using feedforward techniques.<br>Measurements of paper thickness in the nip, immediately after the nip and 24 hours
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14

Guignot, Francois. "Théorie des modèles des groupes abéliens valués." Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCC163/document.

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Cette thèse est consacrée à la théorie des modèles des groupes abéliens valués. Nousdonnons à la fin du premier chapitre un exemple assez simple montrant qu’au contrairedes groupes abéliens ordonnés, les groupes abéliens valués ne sont pas tous dépendants(NIP). La question de la propriété d’indépendance est d’ailleurs au coeur du manuscrit.Nous travaillons dans un langage à deux sortes constitué de symboles pour : la loi de groupe,le symétrique et l’élément neutre (sorte du groupe), l’ordre sur la chaîne et l’infini (sortede la chaîne de valuation) et enfin la valuation elle-même. La première
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Serra, Benoit. "Caractérisation des détecteurs infrarouges de la mission spatiale Euclid : étude des performances des détecteurs infrarouges H2RG." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4008/document.

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La mission spatiale Euclid a pour but d'apporter des réponses quant à la nature de l'accélération de l'expansion de l'Univers. Afin de déterminer les propriétés de cette accélération, la mission spatiale Euclid va effectuer un relevé de galaxies sur 15 000 deg² de champ en imagerie (instrument VIS) et en spectroscopie (instrument NISP) qui requiert un contrôle des précisions instrumentales, notamment sur le système de détection. L'étude faite pendant la thèse se résume en plusieurs étapes: la première étant d'évaluer les performances du NISP à partir de la définition du rapport signal sur brui
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16

Amell, i. Tosas Anna. "Codeposició electroless de NiP amb micro- i nanopartícules ceràmiques." Doctoral thesis, Universitat de Barcelona, 2010. http://hdl.handle.net/10803/48612.

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L’obtenció de recobriments compòsits mitjançant la incorporació de partícules en una matriu determinada ha conduit a una nova generació de materials amb unes propietats particulars, depenent tant de la naturalesa de la matriu com de les partícules emprades. En els darrers anys ha sorgit un gran interes en l’obtenció de compòsits amb partícules nanomètriques, ja que s’ha constatat que la reducció de la mida de la partícula pot modificar substancialment les propietats del dipòsit i permet la reducció de la mida del suport, tot obrint un nou ventall d’aplicacions. L’aplicació de la tecnologia ele
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17

Lim, C. H. "An elastohydrodynamic behaviour of a soft printing roller nip." Thesis, Swansea University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.637918.

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The hydrodynamics and mechanical behaviour of a soft nip between a rubber-covered roller and a rigid roller has been studied. The thesis reports the developments and the results of a combined theoretical and experimental investigation into the nip flow of Newtonian and non-Newtonian fluids operating under various roller mechanical engagements, speeds and other design parameters. The theoretical model has been developed based on a Finite Element method (FEM) to solve for the equation set of generalised pressure and plane strain elasticity equations under a pure rolling contact. Several numerica
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18

SAADI, MOHAMMED TOSSER-ROUSSEY A. "ELABORATION, COMPACTAGE ET FRITTAGE DE POUDRES AMORPHES CHIMIQUES NIP /." [S.l.] : [s.n.], 1996. ftp://ftp.scd.univ-metz.fr/pub/Theses/1996/Saadi.Mohammed.SMZ9648.pdf.

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19

Guimarães, Jéssica Furtado. "Propriedades luminescentes do SrGa2O4 dopado com íons de Ni2+." Universidade do Estado do Rio de Janeiro, 2013. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=9415.

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Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro<br>O objetivo deste trabalho é a síntese e investigação estrutural e óptica de amostras SrGa2O4 dopados com 1% de íons Ni2+. Estas amostras foram sintetizados por reação do estado sólido convencional, utilizando como materiais de partida de alta pureza Ga2O3, SrCO3 e NiO em quantidades estequiométricas. As amostras foram caracterizadas estruturalmente pelo método de difração de raios - X( XRD ) e as medições de difração mostraram que as amostras têm uma única fase monoclínica. Os padrões de XRD também foram refinados pelo método de Riet
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20

Fraga, Malfatti Célia de. "Elaboration et caractérisation de revêtements nanocomposites NiP/SiC électrodéposés." Toulouse 3, 2004. http://www.theses.fr/2004TOU30287.

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Dans ce présent travail des revêtements composites à matrice métallique Ni-P chargés de particules de SiC (tailles moyennes 600 et 30 nm) sont électrodéposés à partir d'une solution de sels de nickel et d'un précurseur phosphoreux H3PO3, dans laquelle les particules sont mises en suspension. Par des mesures de viscosité, de vitesse de sédimentation nous montrons que la taille des particules est une caractéristique importante qui joue sur la stabilité des suspensions. Nous montrons que l'ajout d'additifs organiques dans le but de modifier le comportement des suspensions, peut avoir suivant la t
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Saadi, Mohammed. "Elaboration, compactage et frittage de poudres amorphes chimiques NiP." Metz, 1996. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1996/Saadi.Mohammed.SMZ9648.pdf.

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Nous avons élaboré des poudres NiP de teneur en phosphore de 8% at P à 17% at P en maintenant constant tous les paramètres physico-chimiques excepté la concentration en phosphore dans les bains. Les poudres obtenues par cette nouvelle technique sont identifiées par diffraction de rayon X comme étant amorphe. Nous avons cherché à caractériser le comportement des différentes poudres pendant les étapes de compactage uniaxial. On a pu retenir l'existence de mise en forme (300 à 600 MPa) ou les particules de poudres subissent un réarrangement, la deuxième étape pour des pressions supérieurs à 600 M
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22

Parastatidis, Savas. "Run-time support for parallel object-oriented computing : the NIP lazy task creation technique and the NIP object-based software distributed shared memory." Thesis, University of Newcastle Upon Tyne, 2000. http://hdl.handle.net/10443/1768.

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Advances in hardware technologies combined with decreased costs have started a trend towards massively parallel architectures that utilise commodity components. It is thought unreasonable to expect software developers to manage the high degree of parallelism that is made available by these architectures. This thesis argues that a new programming model is essential for the development of parallel applications and presents a model which embraces the notions of object-orientation and implicit identification of parallelism. The new model allows software engineers to concentrate on development issu
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23

Pimenta, Alteni Fidelis. "Fabricação e caracterização das ligas Ni20 Zn80 e CO20 Zn80 por mechanical allloying." reponame:Repositório Institucional da UFSC, 1995. http://repositorio.ufsc.br/xmlui/handle/123456789/76258.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciencias Fisicas e Matematicas<br>Made available in DSpace on 2012-10-16T08:43:20Z (GMT). No. of bitstreams: 0Bitstream added on 2016-01-08T19:57:23Z : No. of bitstreams: 1 101728.pdf: 2745712 bytes, checksum: 5e18ce616505eaf63eb947934968a808 (MD5)
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Costa, Greice Kelly Bezerra da. "Espectroscopias de fotoluminescência, excitação e fotoacústica de amostras MgGa2O4: Ni2+ e GaNbO4-GaNb11O29-Ga2O3: Cr3+." Universidade do Estado do Rio de Janeiro, 2013. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=6202.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Esta tese apresenta as espectroscopias de fotoluminescência, excitação e fotoacústica de amostras MgGa2O4 dopadas com 0,1%, 0,5% e 1,0% de Ni2+, obtidas pelo método de estado sólido e duas amostras distintas GaNbO4-GaNb11O29-Ga2O3 dopadas com 1,0% de Cr3+, uma sintetizada por reação de estado sólido e a outra pelo método de acetato. As amostras foram identificadas por Difração de Raios X e os dados foram refinados pelo método de Rietveld. A morfologia das amostras foi observada por Microscopia Eletrônica de Varredura. Os espectros
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Holmvall, Martin. "Nip Mechanics, Hydrodynamics and Print Quality in Flexo Post-Printing." Doctoral thesis, Mittuniversitetet, Institutionen för naturvetenskap, teknik och matematik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-11347.

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26

McKethan, Brandon Lee Dickstein Rebecca. "Gene expression profiling of the nip mutant in Medicago truncatula." [Denton, Tex.] : University of North Texas, 2007. http://digital.library.unt.edu/permalink/meta-dc-3940.

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McKethan, Brandon Lee. "Gene Expression Profiling of the nip Mutant in Medicago truncatula." Thesis, University of North Texas, 2007. https://digital.library.unt.edu/ark:/67531/metadc3940/.

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The study of root nodule symbiosis between nitrogen-fixing bacteria and leguminous plant species is important because of the ability to supplement fixed nitrogen fertilizers and increase plant growth in poor soils. Our group has isolated a mutant called nip in the model legume Medicago truncatula that is defective in nodule symbiosis. The nip mutant (numerous infections with polyphenolics) becomes infected by Sinorhizobium meliloti but then accumulates polyphenolic defense compounds in the nodule and fails to progress to a stage where nitrogen fixation can occur. Analysis of the transcripto
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Kirkham, Mark. "High temperature specific heat capacity measurement of Ni2+XMn1-XGa." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/14416.

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The investigation of Ni2MnGa ferromagnetic shape memory alloys relies on accurate and complete phase diagrams for the various phase transitions these materials exhibit. However, very little work has been performed to investigate the high temperature order/disorder phase transitions. This project tries to fill some of the gap in the phase diagram through a systemic composition based investigation of Ni2-XMn1+XGa (X=-0.2, 0.0, 0.2, 0.8 and 1.0) using high temperature specific heat measurements. The work has produced a phase diagram in the composition range measured and demonstrated that the orde
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KANSAL, Vanshika. "Simulation of Solar System Objects for the NISP instrument of the ESA Euclid Mission." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-72221.

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Euclid is a medium class mission designed to study the geometry of dark universe. It will work in the visible and near infrared imaging &amp; spectroscopy for a lifetime of 6 years down to the magnitude of mAB = 24.5 with Visible Imager Instrument (VIS) and mAB = 24 with Near Infrared Spectrometer and Photometer instrument in Y, J &amp; H broadband filters. The current survey design will avoid ecliptic latitudes below 15 degrees, but the observation pattern in repeated sequences of four blocks with four broad-band filter seems well-adapted to Solar System object detection. The aim of this thes
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Thakkar, Paresh. "THE REMOVAL OF MOTION ARTIFACTS FROM NON-INVASIVE BLOOD PRESSURE MEASUREMENTS." Master's thesis, University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2242.

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Modern Automatic Blood Pressure Measurement Techniques are based on measuring the cuff pressure and on sensing the pulsatile amplitude variations. These measurements are very sensitive to motion of the patient or the surroundings where the patient is. The slightest unexpected movements could offset the readings of the automatic Blood Pressure meter by a large amount or render the readings totally meaningless. Every effort must be taken to avoid subjecting the body of the patient or the patient's surroundings to motion for obtaining a reliable reading. But there are situations in which we need
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EL, ABDELLAOUI LARBI TOSSER-ROUSSEY A. "MODULATION DE LA MICRODURETE VICKERS DES COUCHES MINCES ELECTROLYTIQUES DE NIP /." [S.l.] : [s.n.], 1994. ftp://ftp.scd.univ-metz.fr/pub/Theses/1994/El_Abdellaoui.Larbi.SMZ9446.pdf.

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Lopes, Pedro Henrique de Oliveira. "O efeito magnetocalórico na série Gd(1-y)Pr(y)Ni2." Universidade do Estado do Rio de Janeiro, 2014. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=9335.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Em geral, o efeito magnetocalórico (EMC) é caracterizado pela variação adiabática da temperatura (&#916;Tad) e a variação isotérmica da entropia (&#916;ST) sob variações do campo magnético. Devido as aplicações tecnológicas do EMC na refrigeração magnética, que não apresentam efeitos perigosos para o meio ambiente e tem o potencial para reduzir o consumo de energia, os estudos sobre o EMC tem crescido ao longo dos anos . Neste trabalho, estudamos as propriedades magnéticas e magnetocalóricos da série Gd (1-Y) Pr (Y) Ni2 com Y = 0;
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Vaillant, Stéphane. "Revêtements composites NiP/SiC électrodéposés : élaboration et caractérisation des propriétés mécaniques." Toulouse 3, 2002. http://www.theses.fr/2002TOU30004.

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Ces travaux sur l'étude de l'élaboration et de la cartérisation de revêtements composites NiP/SiC électrodéposés. Nous montrons que la présence de particules dans l'électrolyte perturbe les porcessus de co-dépot du phosphore et du nickel. Il s'ensuit une baisse de la teneur en phosphore ainsi qu'une augmentation du volume d'hydrogène occlus. Si la désorption d'hydrogène au cours de sollicitations thermiques augmente le niveau de métasytabilité ses solutions solides en abaissant la température de cr stallisation de phosphures métastables NixPy, les patrticules de SiC présentes dans la matrice r
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Gomes, Luís Miguel da Costa. "Transição martensítica em filmes finos de Ni2+x+yMn1-xGa1-y." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/15461.

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Mestrado em Engenharia Física<br>Este trabalho teve dois objetivos fundamentais comuns e complementares. Desenvolvimento de uma rotina em Labview para automatização de um sistema de medidas de propriedades de transporte em função da temperaturas e/ou do campo magnético. A segunda parte do trabalho consistiu no estudo de filmes finos de Ni2MnGa com especial relevância dada à transformação martensítica. As amostras foram depositadas através da deposição em simultânea de ligas 𝑁𝑖50𝑀𝑛50 e de 𝑁𝑖50𝐺𝑎50usando RF-sputtering em substratos monocristalinos de MgO (100), Si (100) e STO (100). As amostras
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Morris, Viktoriya Dickstein Rebecca. "Map-based cloning of the NIP gene in model legume Medicago truncatula." [Denton, Tex.] : University of North Texas, 2007. http://digital.library.unt.edu/permalink/meta-dc-3638.

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Toss, Elena Kalinin. "Estudo da biossorção de Cd2+ e Ni2+ por meio de consórcio bacteriano." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3137/tde-28082018-091631/.

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Um dos principais impactos causados pela indústria é a poluição hídrica por meio da eliminação de compostos metálicos em efluentes, gerando acúmulo destes na cadeia alimentar e causando efeitos toxicológicos na biota aquática e na saúde da população. O cádmio e o níquel são exemplos desses tipos de contaminantes, geralmente presentes na mineração de cobre e zinco. Novas tecnologias têm buscado reduzir a concentração destes metais em efluentes de uma forma mais sustentável. Entre elas, a adsorção utiliza adsorventes que apresentam em sua superfície sítios com cargas que podem ser ativadas, send
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Junior, Raimundo Nonato da Silveira. "Propriedades fotoluminescentes e higroscopia do composto SrAl2O4 dopado com íons de Ni2+." Universidade do Estado do Rio de Janeiro, 2015. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=9532.

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Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro<br>Amostras foram preparadas pelo método de difusão a partir dos reagentes químicos SrCO3, Al2O3 e NiO em proporções estequiométricas. Medidas por difração de raios X mostraram que as amostras possuem uma única fase: SrAl2O4. Neste trabalho apresentamos imagens de microscopia eletrônica de varredura das amostras SrAl2O4 dopadas com 0,1%, 0,5%, 1,0%, 2,0%, 5,0% e 10,0% de íons de Ni2+, medidas de fotoluminescência, excitação da fotoluminescência da amostra SrAl2O4 dopada com 1,0% de íons de Ni2+, medidas de absorção fotoacústica das amos
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38

Falla-Angel, Jaïro. "Rôle des enveloppes bactériennes dans l'accumulation des métaux (Cd2+, Ni2+, Cu2+, Zn2+)." Metz, 1990. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1990/Falla_Angel.Jairo_Alberto.SMZ9011.pdf.

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L'accumulation des métaux par les cellules bactériennes est un phénomène largement reconnu, dont les mécanismes sont relativement mal élucidés. Les enveloppes cellulaires, structures très complexes, frontières entre le milieu extra et intracellulaire, jouent obligatoirement un rôle fondamental dans cette accumulation. Elles représentent à la fois une zone de fixation et une barrière partielle à la pénétration des ions métalliques et leur capacité/comportement est relativement mal connu. L'analyse bibliographique concerne les métaux utilisés dans cette recherche: le cadmium, le nickel, le cuivr
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Morris, Viktoriya. "Map-based cloning of the NIP gene in model legume Medicago truncatula." Thesis, University of North Texas, 2007. https://digital.library.unt.edu/ark:/67531/metadc3638/.

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Large amounts of industrial fertilizers are used to maximize crop yields. Unfortunately, they are not completely consumed by plants; consequently, this leads to soil pollution and negative effects on aquatic systems. An alternative to industrial fertilizers can be found in legume plants that provide a nitrogen source that is not harmful for the environment. Legume plants, through their symbiosis with soil bacteria called rhizobia, are able to reduce atmospheric nitrogen into ammonia, a biological nitrogen source. Establishment of the symbiosis requires communication on the molecular level betw
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Ferreira, Mónica Alexandra dos Santos. "Epigenetic control of the male progenitor germline by the protein phosphatase PP1-NIP." Doctoral thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/22814.

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Doutoramento em Biologia<br>NIPP1, for nuclear inhibitor of protein phosphatase 1 (PP1), is a multifunctional scaffold protein that regulates cell signaling, pre-mRNA splicing and transcription by targeting PP1 to specific nuclear substrates. The global deletion of NIPP1 in mice is embryonic lethal at the onset of gastrulation, precluding its functional analysis in adult tissues. This prompted us to generate a tamoxifen-inducible NIPP1 knockout (iKO) mouse model. Unexpectedly, the deletion of NIPP1 was not efficient in the examined organs except for testis. The loss of NIPP1 caused an a
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De, aldama sánchez Ricardo. "Chaînes et dépendance." Thesis, Lyon 1, 2009. http://www.theses.fr/2009LYO10322/document.

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Le cadre général de cette thèse est celui de la propriété d’indépendance en théorie des modèles. Les théories sans cette propriété sont appelées NIP ou dépendantes. L’objectif principal est de trouver de nouveaux exemples de théories appartenant à cette classe. Nous montrons d’abord un résultat isolé qui répond une question de Pillay : dans un groupe NIP possédant une partie infinie de classe de nilpotence finie, on y trouve un sous-groupe définissable de même classe de nilpotence et contenant cette partie infinie. Le reste de la thèse est motivé par deux cadres extrêmement proches : les group
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Nehring, Isabel. "Mikrozirkulatorische Veränderungen bei orthostatischer Belastung untersucht mit Hilfe der Venösen Kompressionsplethysmographie (VKP) und der Nahe-Infrarot Photoplethysmographie (NIRP)." Diss., lmu, 2002. http://nbn-resolving.de/urn:nbn:de:bvb:19-8307.

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43

Etcheverry, Bernard Petit Jacques-Alain. "Adhérence, mécanique et tribologie des revêtements composites NiP - Talc multifonctionnels à empreinte écologique réduite." Toulouse : INP Toulouse, 2007. http://ethesis.inp-toulouse.fr/archive/00000431.

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Pereira, Wyllamanney da Silva. "Efeito dos íons Ni2+ nas propriedades estruturais, ópticas e morfológicas do tungstato de prata." Universidade Federal de São Carlos, 2015. https://repositorio.ufscar.br/handle/ufscar/6615.

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Made available in DSpace on 2016-06-02T20:36:56Z (GMT). No. of bitstreams: 1 6820.pdf: 31396624 bytes, checksum: baada275d7fcaaaca7447011730791b4 (MD5) Previous issue date: 2015-07-17<br>Financiadora de Estudos e Projetos<br>The tungstates are important compounds and known for their optical properties. In this work, solid solutions with nickel silver tungstate, &#119860;&#119892;2&#8722;2&#119909;&#119873;&#119894;&#119909;&#119882;&#119874;4, compositions (0, 01 &#8804; &#119909; &#8804; 0, 08) were synthesized by the hydrothermal method of microwave to 140 ° C for 1 h, and to assess the in
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Gomes, Filho Alberto Correia. "Estudo da estrutura e propriedades magnéticas de ferritas de Ni2+/Zn2+ dopadas com Nd3+." Universidade Federal da Paraí­ba, 2014. http://tede.biblioteca.ufpb.br:8080/handle/tede/7150.

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Made available in DSpace on 2015-05-14T13:21:39Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 3810453 bytes, checksum: f423186e582c85555cd8c1d3ea6cddcb (MD5) Previous issue date: 2014-08-15<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>The work consisted in the synthesis of ferrites of composition Ni0,5-xNdxZn0,5Fe2O4 varying the concentration of neodymium ions (Nd3+) for 0 ≤ x ≤ 0.3, the method being chosen as the citrate precursor method or route of synthesis. After synthesis, the samples were calcined at 350°C and then pressed into discs and toroids. Subsequ
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Etcheverry, Bernard. "Adhérence, mécanique et tribologie des revêtements composites NiP - Talc multifonctionnels à empreinte écologique réduite." Phd thesis, Toulouse, INPT, 2006. http://oatao.univ-toulouse.fr/7549/1/etcheverry1.pdf.

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Cette étude porte sur la caractérisation des propriétés de revêtements à matrice Ni-P chargés en particules de talc à empreinte écologique réduite. Les réponses locales des revêtements bruts ou traités thermiquement, soumis à des sollicitations thermomécaniques statiques et dynamiques, ont été obtenues par nano- et -microdureté, microtraction, nanorayage et essais tribologiques. La dureté et la rigidité augmentent après un traitement thermique de cristallisation à 420°C (précipitation de Ni3P). Un traitement à plus haute température (T>600°C) diminue par survieillissement ces caractéristiques.
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47

Adhikari, Sombudha. "IDENTIFICATION OF PROTEIN PARTNERS FOR NIBP, A NOVEL NIK-AND IKKB-BINDING PROTEIN THROUGH EXPERIMENTAL, COMPUTATIONAL AND BIOINFORMATICS TECHNIQUES." Master's thesis, Temple University Libraries, 2013. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/216569.

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Bioengineering<br>M.S.<br>NIBP is a prototype member of a novel protein family. It forms a novel subcomplex of NIK-NIBP-IKKB and enhances cytokine-induced IKKB-mediated NFKB activation. It is also named TRAPPC9 as a key member of trafficking particle protein (TRAPP) complex II, which is essential in trans-Golgi networking (TGN). The signaling pathways and molecular mechanisms for NIBP actions remain largely unknown. The aim of this research is to identify potential proteins interacting with NIBP, resulting in the regulation of NFKB signaling pathways and other unknown signaling pathways. At th
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48

Pomarede, Damien. "Fibres optiques vitrocéramiques pour application laser." Thesis, Limoges, 2018. http://www.theses.fr/2018LIMO0019/document.

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Cette thèse porte sur le développement de fibres optiques de type cœur/gaine, dont le cœur est composé de vitrocéramiques transparentes. Le système étudié est composé d’une matrice de silice stabilisant la phase ZnGa2O4 sous la forme de nano cristaux, pouvant être dopés par des ions de métaux de transition tels que le chrome (III) et le nickel (II). Les verres précurseurs de vitrocéramiques ont été synthétisés par fusion trempe, étirés sous forme de fibres optiques par la méthode poudre puis recuits thermiquement afin d’obtenir des fibres optiques à cœur vitrocéramiques optiquement actives. L’
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Nygårds, Erika. "Experimental equipment for simulation of press nip in tissue paper machine : Prestudy and concept generation." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-44522.

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During manufacturing of tissue paper, large amounts of energy could be saved with an optimized press nip. In the press nip, water is pressed out of the paper and depending on both machine and paper parameters, the dewatering effect will vary. The dewatering process is however, a complex process which is not fully understood. With the facility to simulate different tissue machine concepts in a lab-testing machine, theoretical models of the dewatering process could be tested and evaluated. Karlstad university has started a three-year project with the purpose of building a lab-test equipment for
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Santana, Harrson Silva 1984. "Bioadsorção de íons de Cd2+, Cu2+, Pb2+ Ni2+ e Zn2+ pela macrófita aquática Limnobium spongia." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266699.

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Orientadores: Meuris Gurgel Carlos da Silva, Sirlei Jaiana Kleinübing<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Química<br>Made available in DSpace on 2018-08-21T03:51:16Z (GMT). No. of bitstreams: 1 Santana_HarrsonSilva_M.pdf: 3086288 bytes, checksum: df57d56b5e16a94632301ad2849fb91b (MD5) Previous issue date: 2012<br>Resumo: Este trabalho teve como objetivo avaliar a bioadsorção dos íons Cd2+, Cu2+, Pb2+, Ni2+ e Zn2+ pela macrófita aquática Limnobium spongia em sistema estático. Diagramas de especiação em função do pH, foram simulados usando o s
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