Log in

Relevant bibliographies by topics / Sulfate groups / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Sulfate groups.

Dissertations / Theses on the topic 'Sulfate groups'

Author: Grafiati

Published: 14 March 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Sulfate groups.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Mandarini, Elisabetta. "Decoding the role of HSPGs in tumor onset and progression through use of branched peptide probe." Doctoral thesis, Università di Siena, 2020. http://hdl.handle.net/11365/1094789.

Full text

Abstract:

Heparan sulfate Proteoglycans (HSPGs) play a number of signaling and structural roles in tumor progression and metastasis spread. The biological function of HSPGs resides in their ability of interaction with many different types of ligands like growth factors, morphogens, chemokines and proteins of extracellular matrix (ECM). These bindings activate signaling pathways that modulate major transformations of cancer cells, leading to tumor growth, migration, invasion and metastasis. HSPGs are over-expressed on cancer cell membranes. The tetra-branched peptide NT4 binds with high selectivity to di

APA, Harvard, Vancouver, ISO, and other styles

2

Ahmed, Yassir Ahmed Mohmed Ali. "Heparan sulfate-protein interactions : evidence for sulfate group-dependent selectivity." Thesis, University of Liverpool, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.539728.

Full text

Abstract:

Heparan sulfates (HS) are a family of structurally diverse, sulfated polysaccharides located at the cell surface and in the extracellular matrix. They are distributed widely in virtually all metazoan organisms. The structural diversity occurs via variability in the positions of sulfation along the HS chain and in (l L-iduronic acid and D› glucuronic acid substitutions. There is now strong evidence that these molecules perform diverse functions in vivo through their ability to regulate the activity of different proteins. A wide variety of proteins have been found to be ligands for liS, includin

APA, Harvard, Vancouver, ISO, and other styles

3

Proud, Andrew D. "Development of a protecting group for sulfate esters." Thesis, University of Edinburgh, 1999. http://hdl.handle.net/1842/12804.

Full text

Abstract:

This work describes the development of a protecting group for sulfate monoesters in carbohydrates. After initial trial studies, the trifluoroethyl ester was selected as a suitable protecting group. The ester was formed from the sulfate by treatment with trifluoro diazoethane. This protection method is shown to be compatible with other common protecting groups used in carbohydrate chemistry. The protecting group is proven to be stable to the manipulations of many other protecting groups. The utility of monosaccharides incorporating protected sulfate esters in synthesis has been examined. It has

APA, Harvard, Vancouver, ISO, and other styles

4

Arai, Milton Hideaki. "Papel da atividade física regular realizada durante vários anos na função imune do idoso." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/5/5144/tde-14102014-093413/.

Full text

Abstract:

A proposta principal deste estudo foi de avaliar o efeito da prática regular de atividade física por longos anos na imunossenescência, isto é, nas alterações que o sistema imune sofre com o envelhecimento. Para tal, comparou-se os resultados dos exames imunológicos de 20 idosos praticantes de corrida (idade média = 67 anos) aos de 20 idosos sedentários (idade média = 66 anos) e 10 jovens sedentários (idade média = 26 anos). Os idosos corredores eram praticantes da modalidade em média nos últimos 23 anos e vinham percorrendo uma distância semanal média de 39 quilômetros. O consumo máximo de oxi

APA, Harvard, Vancouver, ISO, and other styles

5

Kotler, Julia Michelle. "Biosignature storage in sulfate minerals- synthetic and natural investigations of the jarosite group minerals." The University of Montana, 2009. http://etd.lib.umt.edu/theses/available/etd-08062009-143516/.

Full text

Abstract:

The discovery of jarosite on Mars in 2004 generated increased interest in the properties of the mineral related to the search for life on other planets. Several studies indicate that the formation of jarosite can be linked to biological activity on Earth and biomolecules such as amino acids have been found associated with terrestrial jarosite samples. A series of natural and synthetic investigations using different jarosite end-members has been conducted and is presented in this dissertation to investigate the possibility that jarosite can store biosignatures. Natural samples were analyzed by

APA, Harvard, Vancouver, ISO, and other styles

6

Katragkou, Eleni. "Aircraft based measurements of atmospheric sulfur dioxide and ground based measurements of gaseous sulfur (VI) in the simulated internal flow of an aircraft engine implications for atmospheric aerosol formation /." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969654588.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Matthews, Richard P. "Ion Pairing in Aqueous Metal Sulfates and Platinum Group Metal Ammonium Solutions." Doctoral thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/6330.

Full text

Abstract:

The structure and dynamics of ions and ion pairs in solution play an integral part in several biological and chemical processes. Historically the calculation of ion pair association constants from computer simulations has been complicated due to the difficulty in validating metal ion force fields for solution simulations. In this thesis a force field for divalent metal ions in metal sulfate solutions (i.e. Mg2+SO4 2-, Ca2+SO4 2-, Mn2+SO4 2-, Fe2+SO4 2-, Co2+SO4 2-, Ni2+SO4 2-, Cu2+SO4 2- and Zn2+SO4 2-) important in physical and biophysical experiments is produced. Potential of mean force calc

APA, Harvard, Vancouver, ISO, and other styles

8

Wuerch, Helmuth Victor. "Diagenesis and Water Chemistry of the Woodbine Group in the East Texas Basin." DigitalCommons@USU, 1986. https://digitalcommons.usu.edu/etd/6685.

Full text

Abstract:

Petrographic and SEM study of flu vial-deltaic sections of the Woodbine Group in the East Texas Basin indicates that authigenic mineral suites are controlled, in part, by the presence of organic-rich matrix. During early, precompaction diagenesis, organic matter supplied the metabolic fuel required by sulfate-reducing bacteria to reduce sulfate in depositional waters ultimately to pyrite. With burial the sulfate supply was ultimately exhausted, and bicarbonate activity thereafter controlled the precipitation of siderite and Fe-calcite. Matrix material supplied the components and reaction sites

APA, Harvard, Vancouver, ISO, and other styles

9

Abdellatif, Mohamed Moustafa. "Poly(arylene ether)s with Truly Pendant Benzene Sulfonic Acid Groups." Wright State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=wright1222544981.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Mulwanda, James. "Recovery of dissolved platinum group metals from a pregnant copper sulphate leach solution by precipitation." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86538.

Full text

Abstract:

Thesis (MEng)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: In Base Metal Refineries (BMRs), the copper sulphate leach solution produced during the final pressure leaching stage contains impurities such as selenium and tellurium, as well as other precious metals (OPMs, namely Rh, Ru, and Ir). Se and Te are removed by precipitation with sulphur dioxide prior to electrowinning of Cu. While a small percentage of the dissolved OPMs precipitate with the Se and Te, the largest portion remains in solution and is recycled to the first stage leach. If a larger portion of the OPMs in solutio

APA, Harvard, Vancouver, ISO, and other styles

11

Schumacher, Trevor I. "Poly(arylene ether sulfone)s with Ammonium Groups Located on PendentPhenyl Sulfonyl Moieties for Anionic Exchange Membranes." Wright State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=wright1468932871.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Mujumdar, Prashant. "Synthesis and Biological Evaluation of Unusual Natural Products and Novel Heterocyclic Chemotypes as Carbonic Anhydrase Inhibitors." Thesis, Griffith University, 2017. http://hdl.handle.net/10072/366972.

Full text

Abstract:

Carbonic anhydrases (CAs) are zinc metalloenzymes that catalyze the reversible hydration of carbon dioxide to bicarbonate and a proton. The zinc cation in the active site of these metalloenzymes is the suggested target for small molecule inhibitors to block the endogenous CA catalysed reaction. Almost all reported CA inhibitors consist of zinc binding group (ZBG) among which the, primary sulfonamide group (-SO2NH2) is the most prominent example. Primary sulfamate (-OSO2NH2) and primary sulfamide (-NH-SO2NH2) groups also serve as zinc binding groups in CA inhibitors, however they are less repre

APA, Harvard, Vancouver, ISO, and other styles

13

Miller, Suzanne M. "Examination of specific amino acid residues of desulfovibrio desulfuricans cytochrome C₃ in electron transfer." Diss., Columbia, Mo. : University of Missouri-Columbia, 2005. http://hdl.handle.net/10355/4252.

Full text

Abstract:

Thesis (M.S.)--University of Missouri-Columbia, 2005.<br>"December 2005" The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Vita. Includes bibliographical references.

APA, Harvard, Vancouver, ISO, and other styles

14

Kern, Kimberly E. "Poly(arylene ether sulfone)s Carrying Pendant(3-sulfonated) phenyl sulfonyl Groups for use as Proton Exchange Membranes." Wright State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=wright1308770965.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

PETIT, EMMANUEL. "Synthese et etudes physico-chimiques de glucuronane et glucoglucuronane substitues par des groupes sulfate et hydrophobe en vue d'applications dans la regeneration tissulaire." Amiens, 2000. http://www.theses.fr/2000AMIE0103.

Full text

Abstract:

Des polysaccharides specifiques, d'origine naturelle ou non, interagissent avec les facteurs de croissance afin d'activer le deroulement des processus de la cicatrisation et de la reparation des tissus leses. En raison de leurs effets sur la reparation tissulaire ces polymeres ont ete denommes rgtas pour regenerating agent. L'activite biologique des rgtas semble liee a la presence sur une meme chaine de groupes fonctionnels carboxylates et sulfates, l'introduction de groupes hydrophobes pouvant moduler leur activite. L'objectif de notre travail a consiste a partir de deux polysaccharides micro

APA, Harvard, Vancouver, ISO, and other styles

16

Bartelmehs, Kurt Lane. "Bond length and bonded radii variations in sulfide molecules and crystals containing main group elements." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/91160.

Full text

Abstract:

Molecular orbital calculations on 18 hydrosulfide molecules containing selected main group X-cations yield minimum energy bond lengths, R<sub>t</sub>(XS), that reproduce those observed in chemically similar sulfide crystals. A least-squares analysis shows that R<sub>t</sub>(XS) can be estimated by the equation R = l.83(s/r)<sup>-0.21</sup>, where s is the Pauling bond strength and r is the row number of the X-cation in the periodic table, with 98% of the variation of R<sub>t</sub>(XS) being explained in terms of a linear dependence on R. In addition, R serves to rank observed XS bond lengths i

APA, Harvard, Vancouver, ISO, and other styles

17

Hanauer, Kristina [Verfasser]. "Ferrocene as redox-functional group in N,N'-disubstituted (thio)ureas and sulfite oxidase mimicking molybdenum complexes / Kristina Hanauer." Mainz : Universitätsbibliothek Mainz, 2018. http://d-nb.info/1164255835/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Baltas, Michel. "Sulfinamides fonctionnalises inhibiteurs de la coniferylalcool deshydrogenase : synthese, etude de complexation par l'ion zn**(2+), mecanisme d'hydrolyse basique et aminolyse des sulfinamoyl acetates : schema d'inactivation enzymatique via un intermediaire sulfine." Toulouse 3, 1987. http://www.theses.fr/1987TOU30145.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Kaukonen, R. (Risto). "Sulfide-poor platinum-group element deposits:a mineralogical approach with case studies and examples from the literature." Doctoral thesis, University of Oulu, 2008. http://urn.fi/urn:isbn:9789514289545.

Full text

Abstract:

Abstract Sulfide-poor deposits of platinum-group elements (PGE) occur in two main types: silicate-type and oxide-type. In the silicate-type mineralization PGE form discrete platinum-group minerals (PGM) that occur as inclusions in various silicate minerals. In the oxide-type mineralization PGM may have different modes of occurrence. They may be associated with silicates or they may occur as inclusions in chromite, magnetite or ilmenite, for example. In some cases they may even be associated with base metal sulfides. The approach chosen in this work is mainly a mineralogical one. PGM paragenes

APA, Harvard, Vancouver, ISO, and other styles

20

Le, Thi Kim-Thoa. "Luminescence de l'europium divalent dans les sulfures de magnésium ou d'éléments alcalino-terreux (sulfures MS, thioaluminates et thiosilicates)." Phd thesis, Université Sciences et Technologies - Bordeaux I, 1989. http://tel.archives-ouvertes.fr/tel-00168927.

Full text

Abstract:

Dans la perspective de la réalisation de luminophores pour écrans cathodiques, une étude de la luminescence de l'europium dans des réseaux-hôtes soufres caracterisés par une large bande interdite a été réalisée. La première partie porte sur l'élaboration des sulfures MS et la détermination des facteurs influençant leurs rendements de photoluminescence et de cathodoluminescence. La seconde est consacrée a l'étude des systèmes MS-Al2S3 et MS-SiS2. De nouveaux thioaluminates ont ete isoles; les donnees cristallographiques sur les thiosilicates ont été complétées. La dernière partie rassemble les

APA, Harvard, Vancouver, ISO, and other styles

21

Permeh, Samanbar. "On the Role of the Pore Water Chemistry of Deficient Post-Tension Grout to Promote Steel Corrosion." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/2445.

Full text

Abstract:

Corrosion failure of post-tension tendons with pre-packaged thixotropic grout was documented in Florida Bridges in less than 10 years of service. Analysis of deficient grout in Florida post-tensioned (PT) bridges where severe corrosion developed indicated enhanced sulfate ion concentration, high pore water pH, enhanced moisture and low chloride content. The corrosion wasn’t consistent with the conventional causes of steel corrosion such as bleed water accumulation in grout void spaces, chloride contamination and pore water carbonation. Corrosion development was associated with deficient grout

APA, Harvard, Vancouver, ISO, and other styles

22

Pessayre, Stéphanie. "Action concertée entre un métal noble et une phase sulfure pour l'hydrotraitement poussé des gazoles." Lyon 1, 2000. http://www.theses.fr/2000LYO10178.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Demirci, Umit Bilge. "Caractère bifonctionnel particulier des catalyseurs Pt, Ir, ou Pd supportés sur zircone sulfatée dans les réactions de reformage d'alcanes." Université Louis Pasteur (Strasbourg) (1971-2008), 2002. https://publication-theses.unistra.fr/public/theses_doctorat/2002/DEMIRCI_Umit_Bilge_2002.pdf.

Full text

Abstract:

Le travail décrit dans ce mémoire concerne l'isomérisation des n-alcanes, nC6 à nC9, sur des zircones sulfatées modifiées par les métaux, platine, iridium ou palladium, avec pour principal objectif la compréhension des mécanismes réactionnels. Malgré le caractère bifonctionnel des catalyseurs, la transformation des alcanes ne suit pas le mécanisme bifonctionnel classique. Nos résultats suggèrent plutôt un mécanisme faisant intervenir un site actif unique, l'adduit métal-proton [(H-Mm)(Hx)x+], et une étape d'adsorption associative. Cet adduit regroupe les sites métallique et acide. Toutes les é

APA, Harvard, Vancouver, ISO, and other styles

24

Choi, Adam. "Illuminating Biology with Membrane Penetrating Sulfonate Delivery Scaffolds and Near-Infrared Azasiline Fluorophores." eScholarship@UMMS, 2018. https://escholarship.umassmed.edu/gsbs_diss/997.

Full text

Abstract:

Near-infrared (NIR) light, with wavelengths of 650 to 900 nanometers, effectively penetrates tissues. The high signal to noise ratio and low phototoxicity of NIR light makes this wavelength range ideal for deep tissue imaging. However, current NIR fluorophores are generally large hydrophobic molecules that are prone to aggregation. Sulfonation can enhance aqueous solubility, but their anionic nature prevents membrane diffusion, and thus, restricts the applications of sulfonated molecules to in vitro or fixed cells. The repertoire of commercially available sulfonated NIR probes is mostly limite

APA, Harvard, Vancouver, ISO, and other styles

25

Martin, Isabelle. "Développement d'une matrice à base d'aluminate de calcium pour la cimentation de boues issues de la décontamination d'effluents actifs." Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30186/document.

Full text

Abstract:

L'industrie nucléaire est une industrie génératrice de déchets, dont certains sont radioactifs. Ces déchets radioactifs ont des formes et des origines diverses, allant de la paire de gant de manutention faiblement contaminés, à la suspension aqueuse de produits de fissions hautement radioactifs. Dans ce travail, un type de déchet bien particulier a été étudié ; des boues issues de la décontamination d'effluents liquides radioactifs, possédant entre autres les trois particularités suivantes ; * Etre moyennement radioactif, selon les critères de l'ANDRA. * Etre composé d'une forte teneur en eau

APA, Harvard, Vancouver, ISO, and other styles

26

Badami, Anand Shreyans. "Morphological and Structure-Property Analyses of Poly(arylene ether sulfone)-Based Random and Multiblock Copolymers for Fuel Cells." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/29469.

Full text

Abstract:

The commercialization of proton exchange membrane (PEM) fuel cells depends largely upon the development of PEMs whose properties are enhanced over current perfluorinated sulfonic acid PEMs. Understanding how a PEMâ s molecular weight and morphology affect its relevant performance properties is essential to this effort. Changes in molecular weight were found to have little effect on the phase separated morphologies, water uptake, and proton conductivities of random copolymers. Changes in block length, however, have a pronounced effect on multiblock copolymers, affecting surface and bulk mor

APA, Harvard, Vancouver, ISO, and other styles

27

Ohnenstetter, Daniel. "Minéralisations associées aux complexes mafiques-ultramafiques en domaine océanique et continental." Nancy 1, 1990. http://docnum.univ-lorraine.fr/public/SCD_T_1990_0539_OHNENSTETTER.pdf.

Full text

Abstract:

Ce mémoire de thèse comporte deux parties: l'une sur les ophiolites et l'autre sur les minéralisations de divers complexes basiques-ultrabasiques, dont les ophiolites, les komatiites et les sills archéens et protérozoïques. Les travaux sur les ophiolites ont abouti à deux résultats majeurs : 1) la reconstitution du puzzle ophiolitique corse ; 2) la diversité des ophiolites avec une classification en deux grands types, dont le magmatisme de l'un s'apparente à celui des rides médio-océaniques, tandis que le magmatisme de l'autre ressemble à celui des arcs immatures. Des études sur la minéralisat

APA, Harvard, Vancouver, ISO, and other styles

28

Soldera, Armand. "Synthese et caracterisation de nouveaux composes smectiques c* ferroelectriques contenant un cur rigide de type tolane et un groupe sulfinate chiral." Université Louis Pasteur (Strasbourg) (1971-2008), 1992. http://www.theses.fr/1992STR13032.

Full text

Abstract:

Ce present travail porte sur la synthese et la caracterisation des premiers cristaux liquides smectiques c* chiraux ferroelectriques contenant un groupe sulfinyle comme centre chiral et un groupement tolane comme partie constitutive du corps rigide. L'adjonction d'un second centre chiral de configuration unique voisin du premier, permet la separation des deux diastereomeres, obtenus ainsi optiquement purs. On observe un polymorphisme liquide cristallin different selon la configuration absolue du soufre. Une purification poussee par hplc preparative des deux epimeres montre une contradiction ap

APA, Harvard, Vancouver, ISO, and other styles

29

Harper, Matthew P. "Platinum Group Element Mineralization in "Ballrooms" of the J-M Reef of the Stillwater Complex, Montana." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd442.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Pollet, Pamela. "Métallation ortho-dirigée par des groupes sulfures en série diazinique. Synthèses de sulfoxydes chiraux et étude de l'induction asymétrique de ces groupes en série aromatique π-déficitaire". Rouen, 1998. http://www.theses.fr/1999ROUES028.

Full text

Abstract:

La synthèse de nouveaux dérivés sulfurés diaziniques : sulfanyl, sulfinyl, sulfonyldiazines, sulfonamides ainsi que celle d'un dérivé phosphoré de la pyridazine a été tout d'abord réalisée. Ces dérivés ont été métallés et divers électrophiles ont été utilisés. La métallation des sulfoxydes chiraux synthétisés auparavant a permis dans certains cas une induction asymétrique totale lors de la réaction avec des aldéhydes prochiraux. Cette diastéréoselectivité a été étudiée et analysée.

APA, Harvard, Vancouver, ISO, and other styles

31

Matson, Johan. "Coffee grounds as an adsorbent for heavy metals in water treatment : Study based on the environment around Vattenriket, Kristianstad." Thesis, Linnéuniversitetet, Institutionen för biologi och miljö (BOM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96299.

Full text

Abstract:

One of the modern times worst environmental problem are polluted water resources. An example of source of pollution to water resources are, heavy metal leached from acid sulfate soils (ASS). When these soils are stable, which they are if they are left underwater in an anoxic environment (for example below the water table), they are often sought after since they consist of high amount of nutrients which farmers use as farmlands. ASS is therefore created when farmers drain their land and the sulfide soil gets exposed to air, resulting in its oxidation and therefore formation of sulfuric acid. In

APA, Harvard, Vancouver, ISO, and other styles

32

Mattoussi, Nabila. "Assemblages supramoléculaires par complexation moléculaire ou métallique de calix[4]arène fonctionnalisés par des groupes sulfonate et carboxylate : synthèse, cristallisation et détermination des structures cristallines." Thesis, Lyon 1, 2013. http://www.theses.fr/2013LYO10325.

Full text

Abstract:

Le travail présenté concerne la synthèse de calixarènes fonctionnalisés par des groupes sulfonates et carboxylates et l'étude détaillée des structures cristallines de leurs complexes moléculaires ou métalliques avec des métaux 3d et 4f. L'une des préoccupations majeures de ce travail concerne la compréhension des assemblages supramoléculaires dans ces systèmes. Le premier chapitre présente des éléments bibliographiques sur les calixarènes, leur histoire, les différentes conformations et les méthodes principales de fonctionnalisation puis la chimie supramoléculaire associée comprenant les compl

APA, Harvard, Vancouver, ISO, and other styles

33

Ando, Daisuke. "Studies on the novel selective β-O-4 cleavage method of lignins by E1cB type elimination reaction assisted by the sulfone group -γ-TTSA method-". Kyoto University, 2014. http://hdl.handle.net/2433/188762.

Full text

Abstract:

Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第18324号<br>農博第2049号<br>新制||農||1021(附属図書館)<br>学位論文||H26||N4831(農学部図書室)<br>31182<br>京都大学大学院農学研究科森林科学専攻<br>(主査)教授髙野俊幸, 教授西尾嘉之, 教授梅澤俊明<br>学位規則第4条第1項該当

APA, Harvard, Vancouver, ISO, and other styles

34

El-Batta, Amer Adnan. "Part I, copper(I) iodide dimethyl sulfide catalyzed 1,4-addition of alkenyl groups from alkenylzirconium and alkenylzinc reagents and their application toward the total synthesis of azaspirene ; Part II, aqueous Wittig chemistry employing stabilized ylides and aldehydes." Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2007. http://wwwlib.umi.com/cr/ucsd/fullcit?p3268346.

Full text

Abstract:

Thesis (Ph. D.)--University of California, San Diego and San Diego State University, 2007.<br>Title from first page of PDF file (viewed August 7, 2007). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 265-280).

APA, Harvard, Vancouver, ISO, and other styles

35

Seat, Zoran. "Geology, petrology, mineral and whole-rock chemistry, stable and radiogenic isotope systematics and Ni-Cu-PGE mineralisation of the Nebo-Babel intrusion, West Musgrave, Western Australia." University of Western Australia. School of Earth and Geographical Sciences, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0202.

Full text

Abstract:

The Nebo-Babel Ni-Cu-platinum-group element (PGE) magmatic sulphide deposit, a world-class ore body, is hosted in low-MgO, tube-like (chonolithic) gabbronorite intrusion in the West Musgrave Block, Western Australia. The Nebo-Babel deposit is the first significant discovery of a nickel sulphide deposit associated with the ca. 1078 Ma Giles Complex, which is part of the Warakurna large igneous province (LIP), now making the Musgrave Block a prime target for nickel sulphide exploration. The Musgrave Block is a Mesoproterozoic, east-west trending, orogenic belt in central Australia consisting of

APA, Harvard, Vancouver, ISO, and other styles

36

Fleischhacker, Ján. "Vliv technologie výroby popílkového pórobetonu na vznik tobermoritických fází." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240077.

Full text

Abstract:

Autoclaved aerated concrete is long-time ecological building material with usefull properties. There needs to be done research of its mineralogical compound for reengineering the production. The main mineral compound of AAC is tobermorite, it increases its mechanical properties. In the presence study, we examine the usage of nature and artificial silicious materials. Also, we investigate the influence of sulfate and alumina admixtures, as well as fluidized bed combustion ash, which can be used as the lime and gypsum replacement. Closure of the study is design of the optimal raw material compos

APA, Harvard, Vancouver, ISO, and other styles

37

Gueddari, Khalid. "Approche géochimique et physico-chimique de la différenciation des éléments du groupe du platine (PGE) et de l'or dans le manteau supèrieur bético-rifain et dans les xénolites de péridotites sous continentales." Université Joseph Fourier (Grenoble), 1996. http://www.theses.fr/1996GRE10031.

Full text

Abstract:

L'etude de la distribution des elements du groupe du platine (pge: ir, ru, rh, pt et pd) et de l'or dans les peridotites des massifs ultrabasiques orogeniques (ronda, beni bousera) permet de mettre en evidence le comportement differentiel de cu, pt et pd par rapport a ni, ir et ru au cours de la fusion partielle. Ce comportement resulte d'une extraction de cu, pt et pd par les liquides silicates sous forme d'une phase sulfuree. A l'inverse, ir et ru restent pieges dans les residus de fusion probablement sous forme de grains refractaires interstitiels. Le rh qui montre un comportement refractai

APA, Harvard, Vancouver, ISO, and other styles

38

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

39

David, Marta Edith Velásquez. "Composição isotópica de Pb-Sr e Nd da mineralização de ouro do depósito Córrego do Sítio, Quadrilátero Ferrífero (MG): implicações na modelagem conceitual." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/44/44141/tde-19042007-142433/.

Full text

Abstract:

O Quadrilátero Ferrífero (MG) é uma importante unidade geotectônica do Cráton do São Francisco que alberga jazidas de ferro e ouro hospedadas na seqüência greenstone belt Rio das Velhas e cuja evolução geodinâmica esteve regida por vários eventos tectonometamórficos. Depósitos de ouro gerados por fluidos epitermais e remobilizações orogênicas proterozóicas se associam intimamente com camadas bandas de ferro e raramente disseminados em metapelitos no topo do greenstone. Nas mineralizações é comum uma paragênese que cristalizou mediante diversos processos e em distintos estágios com predomínio d

APA, Harvard, Vancouver, ISO, and other styles

40

Madi, Atman. "Géologie de la partie nord de l'ophiolite d'Oman : pétrologie et géochimie de la séquence plutonique du massif de Fizh." Phd thesis, Grenoble 1, 1995. http://www.theses.fr/1995GRE10061.

Full text

Abstract:

La séquence plutonique du massif de Fizh (partie nord de l'ophiolite d'Oman) offre une complexité crustale, liée à une diversité des corps magmatiques et du système filonien. La cartographie détaillée montre une succession d'événements magmatiques dont les séries principales sont formées de gabbros lités, des wehrlites et pyroxénites, des gabbronorites. Le magmatisme gabbroïque est généré dans une grande chambre magmatique axiale, alors que le magmatisme wehrlitique est dit hors-axe ; ceci est conditionné par la segmentation axiale de la paléodorsale. L'asymétrie ainsi observée dans la séquenc

APA, Harvard, Vancouver, ISO, and other styles

41

LeeMing-Chuan and 李明川. "Competitive reaction kinetics of microbial groups in expanded granular sludge bed reactors treating sulfate-containing wastewater." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/40906635843514219683.

Full text

Abstract:

碩士<br>崑山科技大學<br>環境工程研究所<br>95<br>To examine the competitive-reaction kinetic behavior of sulfate-reducing bacteria (SRB) and methanogenic bacteria (MB) in expanded granular sludge bed (EGSB) reactors treating sulfate-containing wastewater, four identical EGSB reactors (with acetate as a feed substrate) were used. The two EGSB reactors were respectively used to enrich SRB and MB, and thereby the break-up granules (dispersed sludge) can be used to determine intrinsic and apparent biokinetic parameter values of SRB and MB. The other two EGSB reactors were used to proceed with Phase I and II exper

APA, Harvard, Vancouver, ISO, and other styles

42

Ingram, Laura Jane. "The Synthesis of Sulfated Carbohydrates Using a Sulfate Protecting Group Strategy." Thesis, 2010. http://hdl.handle.net/10012/5437.

Full text

Abstract:

Sulfated carbohydrates play key roles in a wide range of biological processes such as blood clotting, viral entry into cells, amyloidogenesis, neurite outgrowth, tumor growth and metastasis. However, their synthesis still remains a considerable challenge. A general approach to the synthesis of sulfated carbohydrates was examined in which sulfate group is incorporated at the beginning of the syntheses as a protected sulfodiester. Towards this end, a series of sulfuryl imidazolium salts (SIS), a new class of sulfating agents, was prepared and examined as reagents for incorporating 2,2,2-trichl

APA, Harvard, Vancouver, ISO, and other styles

43

González, Martín Rubén. "N-Butane isomerization catalyzed by hydroxyl groups on sulfated zirconia." 1995. http://catalog.hathitrust.org/api/volumes/oclc/34681804.html.

Full text

Abstract:

Thesis (Ph. D.)--University of Wisconsin--Madison, 1995.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 176-192).

APA, Harvard, Vancouver, ISO, and other styles

44

"Biosignature storage in sulfate minerals- synthetic and natural investigations of the jarosite group minerals." UNIVERSITY OF MONTANA, 2010. http://pqdtopen.proquest.com/#viewpdf?dispub=3369197.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

XU, LAI, and 徐賚. "Reversal Glycosylation with Sulfonate Leaving-Group in Glycosyl Acceptor." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/ggw4b3.

Full text

Abstract:

碩士<br>輔仁大學<br>化學系<br>105<br>Part 1: A reversal glycosylation method is proposed to introduce a sulfonate group at the sugar receptor and a hydroxyl group at the anomeric carbon of the saccharide. The sulfonic acid ester group of the sugar receptor is catalytically converted to the saccharide body by alkaline or acidic conditions, the leaving group is constructed, followed by a basic or acidic catalyzed glycosylation. Part 2: Try to use monosaccharides with simple protection to connect with diol and unsubstituted pyridine at anomeric carbon, selectively generate carbohydrate- Modified 1- (Subs

APA, Harvard, Vancouver, ISO, and other styles

46

White, Christopher. "Low-sulfide PGE-Cu-Ni Mineralization from Five Prospects within the Footwall of the Sudbury Igneous Complex, Ontario, Canada." Thesis, 2012. http://hdl.handle.net/1807/32849.

Full text

Abstract:

North Range low-sulfide mineralization is dominantly hosted by Sudbury breccia, with amphibole-plagioclase equilibrium metamorphic temperatures of 440 to 533 ± 75oC, produced by the SICs thermal aureole. Mineralization led to increases in the bulk halogen content of the host Sudbury breccia and the formation of Ni-enriched ferromagnesian silicates. South Range low-sulfide mineralization is typically hosted by metabasalts of the Huronian Supergroup. Garnet-biotite-plagioclase-quartz geothermobarometry produced equilibrium metamorphic conditions of 513 to 645 ± 50oC and 2.0 to 7.7 ± 1.0 kbar, pr

APA, Harvard, Vancouver, ISO, and other styles

47

Cai, Jie-Cheng, та 蔡傑丞. "Synthesis and Properties ofα-Methylstilbene Based Aryl Ether Sulfone Copolymers Containing Sulfuric Acid Group". Thesis, 2005. http://ndltd.ncl.edu.tw/handle/44655600334275864318.

Full text

Abstract:

碩士<br>國立成功大學<br>化學工程學系碩博士班<br>93<br>A designed series of directly copolymerized homo- and disulfonated copolymers containing controlled degrees of pendant sulfonic acid groups have been synthesized via nucleophilic step polymerization. Novel sulfonated poly (arylene ether sulfone) copolymers using α-methylstilbene (HMS), with dichlorodiphenyl sulfone (DCDPS) and 3,3’-disodiumsulfonyl-4,4’-dichlorodiphenylsulfone (SDCDPS) were investigated. Molar ratios of DCDPS and SDCDPS were systematically varied to produce copolymers of controlled compositions, which contained up to 70 mol% of disulfonic ac

APA, Harvard, Vancouver, ISO, and other styles

48

LIN, JIN-QUE, and 林金雀. "Studies on the synthesis and properties of contain sulfone and benzimideazole groups of polyamide-esters, polyamides and polyimides." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/13420994010959252790.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

van, Eck M. "The geology and lithogeochemistry of the Palaeozoic Seventy Mile Range Group at Mt. Farrenden, Charters Towers, North Queensland, Australia." Thesis, 1994. https://eprints.utas.edu.au/21821/1/whole_vanEckM1994_thesis.pdf.

Full text

Abstract:

The Cambra-Ordovician Seventy Mile Range Group occurs as an east-west trending volcano-sedimentary sequence which is host to several significant volcanichosted massive sulphide (VHMS) deposits. In the Mt Farrenden area the base of the Group is comprised of the fine sedimentary units of the Puddler Creek Formation. These continent-derived units were deposited into a back-arc environment. This Formation is- overlain conformably by the rhyoli te-dominated Mt Windsor Volcanics, and by the Trooper Creek Formatioh with mixed andesitic, volcaniclastic sedimentary and daci tic units. Whole

APA, Harvard, Vancouver, ISO, and other styles

50

Aghajanyan, Manuk. "Chemical resistance of lime-based grouts for masonry strengthening." Master's thesis, 2016. http://hdl.handle.net/10198/13178.

Full text

Abstract:

The stone masonry walls are present in many buildings and historical monuments, with undeniable asset value, but also in old buildings housing both in Portugal and in Europe. Most of these buildings in masonry are in certain cases in a high state of degradation needing urgent intervention. This requires the identification of deficiencies and the application of appropriate intervention techniques. One of the possible techniques for structural consolidation works of stone masonry walls is the injection of fluid mortars currently called grouts. The choice of grouts is very important with regard i

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!