Acceder

Bibliografías temáticas / Systeme chemistry / Tesis

Siga este enlace para ver otros tipos de publicaciones sobre el tema: Systeme chemistry.

Tesis sobre el tema "Systeme chemistry"

Autor: Grafiati

Publicado: 25 de mayo de 2024

Última modificación: 31 de julio de 2025

Crea una cita precisa en los estilos APA, MLA, Chicago, Harvard y otros

Elija tipo de fuente:

Consulte los 50 mejores tesis para su investigación sobre el tema "Systeme chemistry".

Junto a cada fuente en la lista de referencias hay un botón "Agregar a la bibliografía". Pulsa este botón, y generaremos automáticamente la referencia bibliográfica para la obra elegida en el estilo de cita que necesites: APA, MLA, Harvard, Vancouver, Chicago, etc.

También puede descargar el texto completo de la publicación académica en formato pdf y leer en línea su resumen siempre que esté disponible en los metadatos.

Explore tesis sobre una amplia variedad de disciplinas y organice su bibliografía correctamente.

1

Labidi, Olfa. "RELATIONS STRUCTURES-PROPRIETES DANS LE SYSTEME Bi2O3-PbO-V2O5 : SURSTRUCTURES, POLYMORPHISME, INCOMMENSURABILITE et CONDUCTIVITE." Phd thesis, Université des Sciences et Technologie de Lille - Lille I, 2006. http://tel.archives-ouvertes.fr/tel-00199221.

Texto completo

Resumen

Ce travail concerne la recherche de nouveaux matériaux à base de bismuth à propriétés spécifiques plus performantes, ou l'amélioration de propriétés de matériaux connus telles que la conduction ionique pour leur intérêt, en particulier dans le domaine énergétique. Dans le système Bi2O3-PbO-V2O5, notre travail a porté tout d'abord sur le domaine riche en bismuth. La structure du composé PbBi6V2O15 a été déterminée. Le problème de discernement par diffraction X de Bi3+ et de Pb2+ a été abordé par le remplacement du plomb par d'autres cations M2+ tels que Sr2+, Ca2+ et Cd2+. Les déterminations st

Los estilos APA, Harvard, Vancouver, ISO, etc.

2

Chaghi, Radhouane. "ETUDE DE LA SOLUBILISATION DES PRODUITS ORGANIQUES A FAIBLE MASSE MOLECULAIRE DANS UN SYSTEME MICELLAIRE." Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2007. http://tel.archives-ouvertes.fr/tel-00196348.

Texto completo

Resumen

Le but de ce travail est la compréhension du mécanisme de la solubilisation micellaire de molécules organiques modèle de faible masse moléculaire et d'une solubilité limitée dans l'eau. Les interactions entre ces molécules organiques<br />(Phénol, butanol, heptanol et acide heptanoïque) et les micelles du tensioactif cationique le bromure d'hexadécyltriméthylammonium (CTAB) au voisinage de la concentration micellaire critique et à de faibles concentrations en solutés ont été caractérisées avec différentes techniques expérimentales : La RMN du 1H, la microcalorimétrie de titration, la conductiv

Los estilos APA, Harvard, Vancouver, ISO, etc.

3

Olivieri, Enzo. "Application de la catalyse pour l'alimentation de systèmes chimiques sans déchet." Electronic Thesis or Diss., Aix-Marseille, 2021. http://theses.univ-amu.fr.lama.univ-amu.fr/211216_OLIVIERI_825ir382ikksw374agndg983uvnl_TH.pdf.

Texto completo

Resumen

Au cours de cette thèse nous avons pris avantage de la catalyse pour le développement de nouveaux carburants, limitant l’accumulation de déchets lors de l’activation sélective de nouveaux systèmes chimiques. Dans une première partie, nous avons transposé le principe de réactions d’hydrogénations réversibles au domaine des machines moléculaires. Cette approche a permis l’élaboration d’un interrupteur moléculaire de type tolane fonctionnant lors de deux cycles consécutifs de dés/hydrogénation. Celui-ci représente le premier système alimenté par carburant chimique sans aucune production de déchet

Los estilos APA, Harvard, Vancouver, ISO, etc.

4

Zavoiura, Oleksandr. "Quantum Dot-basierte FRET Systeme zur Templat-vermittelten Detektion von RNA." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19614.

Texto completo

Resumen

Die Detektion von Nukleinsäuren ist eine der am häufigsten verwendeten Methoden zur Erkennung von viralen und bakteriellen Spezies in biologischen Proben. Oligonukleotid-vermittelte Reaktionen (OVR), die die Zielsequenz als Katalysator der chemischen Reaktion zwischen reaktiven Sonden verwenden, bieten gegenüber den enzymatischen Methoden viele Vorteile, wie z.B. Simplizität und Kosteneffizienz. Normalerweise besitzt das Produkt der OVR deutliche fluoreszierende Eigenschaften, die durch Fluoreszenzspektroskopie gemessen werden können. Die Haupteinschränkung solcher Systeme ist die nur moderate

Los estilos APA, Harvard, Vancouver, ISO, etc.

5

Haefner, Sebastian, Philipp Frank, Martin Elstner, Johannes Nowak, Stefan Odenbach, and Andreas Richter. "Smart hydrogels as storage elements with dispensing functionality in discontinuous microfluidic systems." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-222778.

Texto completo

Resumen

Smart hydrogels are useful elements in microfluidic systems because they respond to environmental stimuli and are capable of storing reagents. We present here a concept of using hydrogels (poly(N-isopropylacrylamide)) as an interface between continuous and discontinuous microfluidics. Their swelling and shrinking capabilities allow them to act as storage elements for reagents absorbed in the swelling process. When the swollen hydrogel collapses in an oil-filled channel, the incorporated water and molecules are expelled from the hydrogel and form a water reservoir. Water-in-oil droplets can be

Los estilos APA, Harvard, Vancouver, ISO, etc.

6

Kahle, Ingolf. "Wirt-Gast-Systeme - optische Eigenschaften von Farbstoffen und Metall-Nanopartikel in mikro- und mesoporösen Alumosilikaten." Doctoral thesis, Universitätsbibliothek Chemnitz, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-149319.

Texto completo

Resumen

Die vorliegende Arbeit beinhaltet die Synthese neuartiger Hybridmaterialien basierend auf der Einlagerung optischer Materialien, wie Farbstoffmoleküle und Metallnanopartikel, in anorganische Wirtsmaterialien mit definierten Porenstrukturen. Hierfür wurden mikro- und mesoporöse alumosilikatische Verbindungen, wie z.B. Zeolithe und Vertreter aus der Familie der sogenannten „Mobile Composition of Matter“ (MCM), verwendet. Mit Hilfe dieses Konzeptes konnte z.B. der Einfluss der Wirtsmaterialien hinsichtlich ihrer Porengrößen und inneren Polarität auf die optischen Eigenschaften von photochromen Na

Los estilos APA, Harvard, Vancouver, ISO, etc.

7

Haefner, Sebastian, Philipp Frank, Martin Elstner, Johannes Nowak, Stefan Odenbach, and Andreas Richter. "Smart hydrogels as storage elements with dispensing functionality in discontinuous microfluidic systems." Royal Society of Chemistry, 2016. https://tud.qucosa.de/id/qucosa%3A30257.

Texto completo

Resumen

Smart hydrogels are useful elements in microfluidic systems because they respond to environmental stimuli and are capable of storing reagents. We present here a concept of using hydrogels (poly(N-isopropylacrylamide)) as an interface between continuous and discontinuous microfluidics. Their swelling and shrinking capabilities allow them to act as storage elements for reagents absorbed in the swelling process. When the swollen hydrogel collapses in an oil-filled channel, the incorporated water and molecules are expelled from the hydrogel and form a water reservoir. Water-in-oil droplets can be

Los estilos APA, Harvard, Vancouver, ISO, etc.

8

Duchesne, Claire. "Etude des proprietes optiques non lineaires dans les verres. Cas du systeme NA2O-TIO2-P2O5." Phd thesis, Université Sciences et Technologies - Bordeaux I, 1993. http://tel.archives-ouvertes.fr/tel-00136123.

Texto completo

Resumen

L' acces aux proprietes optiques non lineaires de materiaux tels que les verres mineraux ouvre de nouvelles perspectives dans le domaine du transport de l' information par fibre optique, voire dans celui de la commutation optique fonctionnant avec des temps de reponse tres brefs (domaine de la subpicoseconde). Concretement, leur potentialite peut etre estimee par une figure de merite F, expression d' un compromis qui doit etre trouve entre la necessite d' accroitre la vitesse et l' amplitude de changement d' indice de refraction et l' obligation d' attenuer la variation thermique de l' indice

Los estilos APA, Harvard, Vancouver, ISO, etc.

9

Sato, Hiroki. "Chemistry /." Online version of thesis, 2008. http://hdl.handle.net/1850/7747.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

10

Kristen, Juliane Ute. "Amphiphilic BAB-triblock copolymers bearing fluorocarbon groups : synthesis and self-organization in aqueous media." Phd thesis, Universität Potsdam, 2011. http://opus.kobv.de/ubp/volltexte/2012/6178/.

Texto completo

Resumen

In this work new fluorinated and non-fluorinated mono- and bifunctional trithiocarbonates of the structure Z-C(=S)-S-R and Z-C(=S)-S-R-S-C(=S)-Z were synthesized for the use as chain transfer agents (CTAs) in the RAFT-process. All newly synthesized CTAs were tested for their efficiency to moderate the free radical polymerization process by polymerizing styrene (M3). Besides characterization of the homopolymers by GPC measurements, end- group analysis of the synthesized block copolymers via 1H-, 19F-NMR, and in some cases also UV-vis spectroscopy, were performed attaching suitable fluorinated

Los estilos APA, Harvard, Vancouver, ISO, etc.

11

Beyvers, Stephanie. "Selective excitation of adsorbate vibrations on dissipative surfaces." Phd thesis, Universität Potsdam, 2008. http://opus.kobv.de/ubp/volltexte/2008/2551/.

Texto completo

Resumen

The selective infrared (IR) excitation of molecular vibrations is a powerful tool to control the photoreactivity prior to electronic excitation in the ultraviolet / visible (UV/Vis) light regime ("vibrationally mediated chemistry"). For adsorbates on surfaces it has been theoretically predicted that IR preexcitation will lead to higher UV/Vis photodesorption yields and larger cross sections for other photoreactions. In a recent experiment, IR-mediated desorption of molecular hydrogen from a Si(111) surface on which atomic hydrogen and deuterium were co-adsorbed was achieved, following a vibrat

Los estilos APA, Harvard, Vancouver, ISO, etc.

12

Rudberg, Elias. "Quantum Chemistry for Large Systems." Doctoral thesis, Stockholm : Bioteknologi, Kungliga Tekniska högskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4561.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

13

Pappas, Charalampos. "Supramolecular systems chemistry using peptides." Thesis, University of Strathclyde, 2015. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=26621.

Texto completo

Resumen

Living systems possess overwhelming molecular complexity that largely results from combinations of just twenty amino acids that are found across all life forms (the building blocks of life). Complexity of proteins arises from combinations of hundreds amino acid building blocks, where self-assembly dictates structure and functionality. Apart from their vital role on building living processes, short peptide sequences (minimalistic version of more complex biological machinery, consisted of 2-6 amino acids), appear to be ideal structural candidates for the fabrication of soft nanomaterials, with p

Los estilos APA, Harvard, Vancouver, ISO, etc.

14

Shah, Faiz Ullah. "Designed boron chemistry for tribological systems." Doctoral thesis, Luleå tekniska universitet, Industriell miljö- och processteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-26383.

Texto completo

Resumen

Boron compounds can be environmentally friendly alternatives for commercially available lubricant additives. Some boron compounds are already used as friction modifiers, corrosion inhibitors, antioxidants and antiwear additives in lubricants. The focus of the present work is on the development and tribological investigations of new boron compounds for these applications. In this work, boron compounds based on dithiophosphates (DTPs), dithiocarbamates (DTCs) and ionic liquids (ILs) were designed, synthesized and tribologically optimized. The work was carried out in the following steps: (1) Synt

Los estilos APA, Harvard, Vancouver, ISO, etc.

15

Bond, Jade. "The Chemistry of Extrasolar Planetary Systems." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/194946.

Texto completo

Resumen

This work examines the chemical nature of extrasolar planetary systems, considering both the host star and any potential terrestrial planets located within the system. Extrasolar planetary host stars are found to be enriched over non-host stars in several r- and s-process elements. These enrichments, however, are in keeping with general galactic chemical evolution trends. This implies that host stars have not experienced any unusual chemical processing or pollution and that the observed enrichments are primordial in nature.When combined with detailed chemical models, the dynamical models of O'

Los estilos APA, Harvard, Vancouver, ISO, etc.

16

Nguyen, Minh-Chau. "Chemistry of individual nanoparticles : 3D tracking by holographic microscopy and dynamic spectroscopy." Thesis, Université de Paris (2019-....), 2019. http://www.theses.fr/2019UNIP7196.

Texto completo

Resumen

Dans ce travail, nous avons développé un système de spectroscopie dynamique utilisant l'holographie afin de surmonter cette difficulté. Notre stratégie est de localiser la nanoparticule en 3D et en temps réel grâce à l’holographie, et d’utiliser la position mesurée afin d’asservir le mouvement de la zone de collection du spectromètre. Notre système est donc constitué de deux parties principales: un microscope holographique pour le suivi 3D de la nanoparticule et un système optique adaptatif pour le déplacement de la zone de mesure spectroscopique. Après validation, ce système a été appliqué à

Los estilos APA, Harvard, Vancouver, ISO, etc.

17

Van, Veelen Arjen. "Uranium coordination chemistry in Mg-rich systems." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/uranium-coordination-chemistry-in-mgrich-systems(707b1576-699c-4f0a-b945-7482cfb7f51f).html.

Texto completo

Resumen

In the UK, large quantities of intermediate level waste pose complex radiological remediation challenges. Chemical understanding of uranium in these Mg-rich sludges is vital. Previous studies have examined uranium uptake by calcium carbonate minerals (calcite and aragonite) under conditions pertinent to both natural and anthropogenically perturbed systems. However, research on uranyl uptake by magnesium-rich minerals such as magnesite [MgCO3], brucite [Mg(OH)2], nesquehonite [MgCO3·3H2O] and hydromagnesite-[Mg5(CO3)4(OH)2·4H2O] has not, to the best of our knowledge, been previously conducted.

Los estilos APA, Harvard, Vancouver, ISO, etc.

18

Shimizu, Kyoko. "The interfacial chemistry of isocyanate/metal systems." Thesis, University of Surrey, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.549654.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

19

Lukkari, Ingrid. "Flow injection systems for process analytical chemistry." Doctoral thesis, Umeå universitet, Kemiska institutionen, 1995. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-114755.

Texto completo

Resumen

Flow injection systems have great potential for sample handling and analysis in process analytical chemistry. The flexibility and versatility of flow injection manifolds can he utilized in specific applications of sample conditioning and analysis. An overview of various flow injection methods, including flow reversals, double injection, and sequential injection is given, as well as different clean-up methods, such as gas diffusion, solid phase extraction, dialysis, and solvent extraction. Calibration techniques, such as single standard and multivariate calibration are also discussed. In additi

Los estilos APA, Harvard, Vancouver, ISO, etc.

20

Duran-Frigola, Miquel 1985. "Blending biology and chemistry to enable systems pharmacology." Doctoral thesis, Universitat Pompeu Fabra, 2016. http://hdl.handle.net/10803/459111.

Texto completo

Resumen

The avalanche of data that followed the sequencing of the human genome has revealed an overwhelming biological complexity. No simple molecular explanation exists for most of the diseases and, in consequence, simple therapies have low probability of success. The emerging field of systems pharmacology seeks drugs of broad impact on molecular networks. To achieve so, it is necessary to integrate heterogeneous data, at different levels of complexity, and find correlations between them. This translational exercise is, perhaps, the major concern of current biomedical research. In this Thesis we und

Los estilos APA, Harvard, Vancouver, ISO, etc.

21

Bell, Douglas Hindmarsh. "Physical chemistry of liquid salt systems involving uranium." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/8248.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

22

Roe, Gerard. "Surface and catalytic chemistry of Ni/Sm systems." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282064.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

23

Briscoe, Mark William. "Electrochemical reduction of fluorinated systems and derived chemistry." Thesis, Durham University, 1989. http://etheses.dur.ac.uk/6549/.

Texto completo

Resumen

The work described in this thesis is divided into four sections: 1. The electrochemical reduction of fluorocarbon derivatives has been investigated. A number of systems have been studied analytically (using cyclic volt amine try) ; whilst preparatively a range of compounds have been synthesised, including semi-conducting polymers and four-membered perfluorocyclic products. 2. The use of sodium amalgam as an electromimetic medium to facilitate reduction of various fluorocarbon substrates has been studied. A series of volatile cyclic and acyclic F-dienes have been prepared from F-alkenes in good

Los estilos APA, Harvard, Vancouver, ISO, etc.

24

Sagandira, Cloudius Ray. "Exploring acyl azides chemistry in continuous flow systems." Thesis, Nelson Mandela Metropolitan University, 2017. http://hdl.handle.net/10948/12065.

Texto completo

Resumen

Organic azides are important in the synthesis of many target molecules of great use in fine chemical and pharmaceutical production. The use of this class of compounds is however limited due to their hazardous nature and many safety concerns, as they are highly exothermic. Micro reactors can handle exotherms extremely well, due to the inherent high surface area to volume ratio, unlike the conventional batch process. This dissertation therefore aims to investigate the safe application of micro reactors in acyl azide chemistry.With this in mind, Chapter 1 provides a comprehensive background on or

Los estilos APA, Harvard, Vancouver, ISO, etc.

25

Alvarez, Silva Mayeli. "Surface chemistry study on the pentlandite- serpentine system." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=97112.

Texto completo

Resumen

Interaction with MgO-minerals is one mechanism suspected to reduce selectivity in flotation of pentlandite from ultramafic ore. Understanding the surface chemistry of the minerals involved will lead to improved flotation conditions that maximize flotation selectivity. The first part of the thesis compares isoelectric point (i.e.p.) and point of zero charge (p.z.c.) determined using Mular-Roberts [M-R] titration technique of MgO-minerals chlorite, serpentine and talc. The M-R technique was unsuccessful with talc, attributed to Mg2+ acting as potential determining ion. For serpentine and chlorit

Los estilos APA, Harvard, Vancouver, ISO, etc.

26

Curley, John Joseph. "Dinitrogen fixation chemistry of a molybdenum trisanilide system." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/49549.

Texto completo

Resumen

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2009.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Vita.<br>Includes bibliographical references.<br>Dinitrogen cleavage by Mo(N[t-Bu]Ar)3 (Ar = 3,5-C6H3Me2) proceeds through the intermediate ([mu]-N2)[Mo(N[t-Bu]Ar)3]2 before forming N=Mo(N[t-Bu]Ar)3 as the product. Both the intermediate bridging N2 complex and the nitride product have been structurally characterized by single-crystal X-ray diffraction. The spectr

Los estilos APA, Harvard, Vancouver, ISO, etc.

27

Haley, Roger David. "Surface chemistry of the vinyl acetate catalytic system." Thesis, University of Cambridge, 1999. https://www.repository.cam.ac.uk/handle/1810/272089.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

28

Jenkins, Dave A. "Teaching First-Semester General Chemistry Using 3D Video Games following an Atoms First Approach to Chemistry." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1248376/.

Texto completo

Resumen

The unified learning model (ULM) focuses on students' engagement, motivation, prior knowledge, and working memory. This study employs the use of video games to assess students' learning through a 3D chemistry gaming environment. In this human-subjects research, students carried out missions and applied reasoning to solve problems appropriate for general chemistry content. For learning to occur, students must be engaged and motivated as stated in the ULM. Learning cannot necessarily be accomplished by experience alone, and critical thinking is required to turn the experience into learning. The

Los estilos APA, Harvard, Vancouver, ISO, etc.

29

Hau, Lap Wing. "Electrokinetically-driven liquid flows in microchannels using surface-chemistry technology /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?MECH%202005%20HAU.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

30

Hao, Jicheng. "An investigation of the inorganic chemistry of peat systems." Thesis, Liverpool John Moores University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337789.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

31

Winbow, Howard David. "The chemistry and properties of magnesia-phosphate cement systems." Thesis, University of Sheffield, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249651.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

32

Gregory, Robert John Hryntchyshyn. "Biocatalytic preparation and chemistry of some novel cyanohydrin systems." Thesis, University of Liverpool, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365896.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

33

Mathews, Sussen. "Study of systems relevant to combustion and atmospheric chemistry." Thesis, University of Aberdeen, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322537.

Texto completo

Resumen

Two approaches have been used in this investigation. The first involved the employment of the technique of molecular modulation kinetic (MMK) spectroscopy in the study of reaction kinetics of transient species. Previous research at Aberdeen had established a systematic error in both the kinetic (<I>k</I><sub>obs</sub>) and spectroscopic (σ<sub>λ</sub>) parameters determined. Therefore it was intended to investigate the source of this error through the study of the kinetics of the association of the trichloromethyl radical with oxygen, producing the trichloromethyl peroxy (CCl<sub>3</sub>O<sub>

Los estilos APA, Harvard, Vancouver, ISO, etc.

34

Merckel, Daniel Andrew Sturton. "The use of supramolecular chemistry in dye delivery systems." Thesis, University of Southampton, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246879.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

35

Dong, Zhiming (Eric). "New Adventures in the Chemistry of Polycarboncyclic Ring Systems." Thesis, University of North Texas, 1997. https://digital.library.unt.edu/ark:/67531/metadc278356/.

Texto completo

Resumen

I. Diels-Alder reactions of 1,2,3,4,9,9-hexachloro-1,4,4a,8a-tetrahydro-1,4-metha- nonaphthalene (16) and 1,2,3,4,9,9-hexachloro-1,4,6,7-tetrahydro-1,4-methanonaphthalene (17) toward dienophiles N-methyl-1,2,4-triazoline-3,5-dione (MTAD), N-phenyl-1,2,4-triazoline-3,5-dione (PTAD) and/or N-methylmaleimide (NMM) have been examined. II. Epoxides derived from functionalized 1,4,4a,9a-tetrahydro-9,10-dioxo-1,4-methanoanthracenes (1a and 1b) undergo acid- and base-promoted intramolecular nucleophilic ring-opening to form new polycyclic alcohols. III. The title cycloalkylidenecarbene has been

Los estilos APA, Harvard, Vancouver, ISO, etc.

36

Thorn, Angie Sue (Morris). "The impact of nanoparticle surface chemistry on biological systems." Diss., University of Iowa, 2017. https://ir.uiowa.edu/etd/5659.

Texto completo

Resumen

The unique properties of nanomaterials, such as their small size and large surface area-to-volume ratios, have attracted tremendous interest in the scientific community over the last few decades. Thus, the synthesis and characterization of many different types of nanoparticles has been well defined and reported on in the literature. Current research efforts have redirected from the basic study of nanomaterial synthesis and their properties to more application-based studies where the development of functionally active materials is necessary. Today such nanoparticle-based systems exist for a ran

Los estilos APA, Harvard, Vancouver, ISO, etc.

37

Keatings, Kevin William. "The basis for ostracod shell chemistry in palaeoclimate reconstruction." Thesis, Kingston University, 1999. http://eprints.kingston.ac.uk/20651/.

Texto completo

Resumen

This project examined the trace-element and stable-isotope composition of non-marine ostracod shells and their use in Holocene palaeoclimate reconstruction, with particular reference to mid-latitude shallow carbonate lakes. Controls on the chemical composition of shells from such environments were studied. Results were used to test the application of ostracod shell chemistry data to palaeoclimate reconstruction. Selected techniques were applied to a high resolution study of Holocene lake marl sequence. The project investigated influences on shell chemistry during formation, sedimentary deposit

Los estilos APA, Harvard, Vancouver, ISO, etc.

38

Diaz, Cachero M. C. "Control strategy for a flexible analytical chemistry robotics system." Thesis, Middlesex University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.568484.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

39

Lewis, Gareth Peter. "Intelligent monitoring and control system for microwave assisted chemistry." Thesis, Liverpool John Moores University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.438835.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

40

Jackson, A. R. W. "The imidazolethione/copper system : Coordination chemistry and corrosion inhibition." Thesis, University of Newcastle Upon Tyne, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371068.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

41

Floyd, Tamara M. (Tamara Michelle) 1974. "A novel microchemical system for rapid liquid-liquid chemistry." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/8273.

Texto completo

Resumen

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, February 2002.<br>Includes bibliographical references (leaves 110-119).<br>Microchemical systems are sub-milliliter systems for chemical processes. They are constructed using microfabrication techniques originally developed for the fabrication of microelectronic circuits. The reduction in size, as compared to conventional systems, offers several advantages in improvement of heat and mass transfer and control of flow fields. In addition, microchemical systems are smaller, therefore inherently safer and capabl

Los estilos APA, Harvard, Vancouver, ISO, etc.

42

Ritter, Halle (Halle Caitlan). "Nitrogen chemistry in an urban bioretention system in Singapore." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/82824.

Texto completo

Resumen

Thesis (M. Eng.)--Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 35-37).<br>An investigation into the nitrogen chemistry of the anoxic layer of an urban constructed wetland in Singapore was conducted. This pilot-scale wetland treats stormwater runoff from the Balam Estate housing development for several water quality parameters of concern, including nitrate. Earlier sampling in the wetland had indicated that the concentration of nitrate was lower in the outflo

Los estilos APA, Harvard, Vancouver, ISO, etc.

43

Hurwitz, Margaret Mead. "Idealised numerical simulations of the stratospheric chemistry-climate system." Thesis, University of Cambridge, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.612249.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

44

Goodyear, Michael Cooper. "Organic chemistry and mineral interactions in the solar system." Thesis, Open University, 2013. http://oro.open.ac.uk/54719/.

Texto completo

Resumen

The objective of this project was to develop methods to detect meteoritic organic compounds in situ, and to detelmine whether any associations exist between specific classes of compound and co-located minerals, thus indicating a possible common origin. Carbonaceous chondrites, (which comprise a small proportion of meteorites), contain a few per cent of organic material, heterogeneously distributed within their structure, the major part being macromolecular ("insoluble organic material", lOM). Model compounds were covalently bonded to "molecular tags", atoms or groups not normally present in me

Los estilos APA, Harvard, Vancouver, ISO, etc.

45

Hamdi, Meshal. "E-Waste Recycling System for Computers and Mobile Devices Using Green Chemistry." Digital Commons at Loyola Marymount University and Loyola Law School, 2015. https://digitalcommons.lmu.edu/etd/390.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

46

Kokhanenko, Pavlo. "Hydrodynamics and chemistry of silica scale formation in hydrogeothermal systems." Thesis, University of Canterbury. Mechanical Egineering, 2015. http://hdl.handle.net/10092/10247.

Texto completo

Resumen

The extraction of geothermal heat can cause precipitation of the minerals dissolved in geothermal fluid. Their deposition on the walls of wells and above-ground plant and in pores near reinjection wells, also known as mineral scaling, is one of the main obstacles to increasing the effectiveness of utilization of the limited geothermal resources. If not controlled properly it can result in accumulation of a significant amount of scale which obstructs pipes and reinjection wells and reduces the efficacy of heat exchangers. The most abundant mineral in geothermal fluid is silica and thus its prec

Los estilos APA, Harvard, Vancouver, ISO, etc.

47

Hardacre, Christopher. "Surface chemistry and catalysis of novel Pt/CeOâ†2 systems." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282862.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

48

Kim, Judy E. (Judy Eunhee). "Physical chemistry of acid systems relevant to stratospheric ozone depletion." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/54401.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

49

McKie, Marion Catherine. "The chemistry of 1,3,4-oxathiazol-2-ones and related systems." Thesis, University of Edinburgh, 1988. http://hdl.handle.net/1842/12633.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

50

Murphy, Paul. "Development and applications of quantum chemistry to open shell systems." Thesis, Heriot-Watt University, 2017. http://hdl.handle.net/10399/3355.

Texto completo

Resumen

This thesis investigates the applicability of a range of computational techniques across a range of open shell chemical systems from the geometrically simple but electronically complex to the geometrically complex but electronically simple. Initially an investigation into a range of geometrically simple but electronically complicated systems is presented. The Monte Carlo Configuration Interaction method (MCCI) is applied to challenging transition metals dimers such as ScNi in order to establish the ground state potential energy surface, from equilibrium bond lengths through to dissociation usi

Los estilos APA, Harvard, Vancouver, ISO, etc.

Ofrecemos descuentos en todos los planes premium para autores cuyas obras están incluidas en selecciones literarias temáticas. ¡Contáctenos para obtener un código promocional único!