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1
Kang, Hyejin. "Unity within diversity in Leo Sowerby's solo organ works /." Full text (PDF) from UMI/Dissertation Abstracts International, 2000. http://wwwlib.umi.com/cr/utexas/fullcit?p9983126.
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Farr, Stephen John. "The solo organ and harpsichord works of Judith Bingham." Thesis, University of Surrey, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.656323.
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The portfolio contains three elements in addition to a live recital. The first is a thesis based substantially on the author's experience of collaboration with the British composer Judith Bingham between 2011 and 2013 in the preparation and performance/recording of three commissioned works for solo organ or harpsichord. The study examines Bingham's work in the selected genres from a number of viewpoints. Specific analytical, technical and aesthetic questions are all examined in the course of the text, which draws on a range of new material, including autograph scores of unpublished early works and interviews and correspondence with Bingham herself and with recent interpreters of her work. The study will, it is hoped, assist in establishing a context within which performers of Bingham's works might develop their interpretations. The second element is a set of five recordings (both live and commercial) which feature two of the works commissioned from Bingham, alongside other repertoire. These recordings illustrate particular aspects of the performance issues discussed in the thesis - specifically notions of 'sonic authenticity' in Bingham's work - and also explore notions of the relationship between old and new compositional idioms, a concept which was fundamental to the composition of one of the commissioned works. The third element of the portfolio, comprising two published articles on performance issues in Alain's organ works, considers issues of textual 'authenticity' and its influence on interpretative outcomes in the performance of 20th century organ music.
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Lloyd, S. Andrew. "Études: Five Compositional and Technical Studies for Solo Organ." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc499990/.
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Études was composed as a set of five interrelated movements in the followingorder: Prelude, Introduction and Fugue, Triptych, Chorale, and Response. The pieces are compositional as well as technical studies. The movements specifically explore certain styles and forms unique to organ music, and reintroduce these elements in creative ways. As in the traditional étude, each movement contains virtuosic technical studies, which are designed to enhance manual and pedal facility and prepare the performer for advanced repertoire.
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Olford, Gertrude Carolyn. "Four organ recitals and an essay, selected Canadian solo organ music, 1981-1996 : introduction and annotated catalogue." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq23105.pdf.
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Pinson, Donald Lynn. "History and current state of performance of the literature for solo trombone and organ." connect to online resource, 2008. http://digital.library.unt.edu/permalink/meta-dc-9050.
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Thesis (D.M.A.)--University of North Texas, 2008.System requirements: Adobe Acrobat Reader. Accompanied by 4 recitals, recorded Mar. 1, 2004, Jan. 31, 2005, Jan. 30, 2006, and Apr. 21, 2008. Includes bibliographical references (p. 50-64), and discography (p. 41-49).
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Whitehouse, Matthew Robert. "Pleiades Visions for Organ Solo: A Composition Supported by Documented Research." Diss., The University of Arizona, 2012. http://hdl.handle.net/10150/265366.
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Pleiades Visions is a three-movement work for organ solo inspired by indigenous music and mythology associated with the Pleiades (Seven Sisters) star cluster. Three cultural groups are represented in Pleiades Visions. The first movement, entitled "Uluru," draws from Australian Aboriginal music and mythology. The second movement, entitled "...life on other worlds," is based loosely on a Quechan (Yuman) Indian song. The concluding movement, entitled "Mauna Kea," is inspired by the opening lines of the Kumulipo, a creation chant of the Native Hawaiian culture. The source material for Pleiades Visions was identified through research incorporating techniques from the fields of cultural astronomy and ethnomusicology. This research represents a new line of inquiry for both fields. This document situates Pleiades Visions in the context of the organ literature, and suggests that Pleiades Visions might be the first organ work with a cultural astronomy inspiration. It also describes the research undergirding Pleiades Visions, demonstrates the manner in which that research informed the composition of the work, and addresses issues surrounding the use of indigenous source material in a culturally sensitive manner.
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Pinson, Jr Donald Lynn. "History and Current State of Performance of the Literature for Solo Trombone and Organ." Thesis, University of North Texas, 2008. https://digital.library.unt.edu/ark:/67531/metadc9050/.
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More than 200 compositions have been written for solo trombone and organ since the nineteenth century, including contributions from notable composers such as Franz Liszt, Gustav Holst, Gardner Read, Petr Eben, and Jan Koetsier. This repertoire represents a significant part of the solo literature for the trombone, but it is largely unknown to both trombonists and organists. The purpose of this document is to provide a historical perspective of this literature from the nineteenth century to the present, to compile a complete bibliography of compositions for trombone and organ, and to determine the current state of performance of this repertoire. This current state of performance has been determined through an internet survey, a study of recital programs printed in the ITA Journal, a study of recordings of this literature, and interviews and correspondence with well-known performers of these compositions. It is the intention of this author that this document will serve to make the repertoire for trombone and organ more accessible and more widely known to both trombonists and organists.
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Teteris, Melisandra Elizabeth. "The solo horn and organ tradition| An analysis of Peteris Vasks's "Musique du Soir"." Thesis, California State University, Long Beach, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10131633.
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The compositional pairing of horn and organ is less common, in comparison to the more popular combination of trumpet and organ, perhaps a result of this pairing being a more recent development in Western art music. In the second half of the twentieth century, composers showed an increased interest in combining the horn and organ particularly in France, the United States, and Eastern Europe. In Paris, the influence of the French organ school was a prime motivator in this ensemble shift along with the desire amongst composers to explore new timbral options. This horn and organ pairing had an influence on the works of Latvian composer Pēteris Vasks, whose catalog includes many compositions for organ in addition to one solo composition for horn with organ accompaniment—Musique du Soir (1988).
This study includes an analysis of cultural context, form, and oral history methodologies. In order to gain insight into the reasoning for the late development of the horn and organ pairing, it is important to understand the influences and arrangements that came out of France in the first half of the twentieth century, the compositional mind-set that was popular in the mid-twentieth century in regards to the fixation upon new timbres and ensembles, and the issue of horn with a piano accompaniment as a mundane entity. Musique du Soir (1988), is based on themes of nature and is composed in a free form that reflects the freedom in nature. A formal and melodic analysis will examine these features and explore how they work within this piece. In addition, information from personal interviews with the composer will give insights into Vasks' compositional process and provide a detailed look at the importance of the horn and organ pairing to the composer.
Pēteris Vasks, an important figure within Latvian art music, and his horn and organ work exemplifies the richness of tradition within his compositions and the importance that he has placed in Latvian art music, an often overlooked genre.
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Hamilton, Thomas Keith. "The liturgical organist: the creative use of solo organ music in the Lutheran liturgy." Diss., University of Iowa, 2014. https://ir.uiowa.edu/etd/1463.
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Sunday after Sunday, liturgical organists are faced with the challenge of providing music for liturgy. While hymns, psalms, musical settings of liturgical texts, choral anthems and responses are often made clear in their choice due to the marriage of text and music, choosing music outside of those parameters is a challenge. Music that happens prior to worship as the community gathers, music to accompany ritual actions such as the presentation of the offering or the distribution of the Eucharist, and music that sends people on their way at the end of the service is not something to be taken lightly. Such choices are important and can have a significant effect on the over-all tenor of the liturgy. Many organists have concluded the most efficient and effective solution is to seek pieces which are based on the hymns sung by the assembly and trust that a cohesive liturgical whole has been created. This essay attempts to move beyond that notion into the realm of solo organ literature that is not derived from a chorale or hymn melody. Each piece of music carries its own aesthetic characteristics, and the task of the liturgical organist is to determine how those characteristics can best be incorporated into a given religious celebration.
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Secan, Stephen. "A transcription of Jean Francais's L'Horloge De Flore for solo oboe and organ (Four Hands)." The Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=osu1117569047.
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Secan, Stephen R. "A transcription of Jean Francaix's L'horloge de flore for solo oboe and organ (four hands)." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1117569047.
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Luitingh, Willem Scholtz. "Die Suid-Afrikaanse komponis Hendrik (“Henk”) Temmingh : ’n biografie en ’n katalogus van sy orrelwerke (Afrikaans)." Diss., University of Pretoria, 2010. http://hdl.handle.net/2263/27210.
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AFRIKAANS : Hendrik (“Henk”) Temmingh word vandag gereken as een van Suid-Afrika se mees toonaangewende orrelkomponiste. Hy het sy veelsydigheid bewys en veral gevestig geraak as ’n noemenswaardige figuur op die gebied van musiekwetenskap, improvisasiekuns en orrelmusiek. Die doel van die studie is om aan te toon dat Temmingh se oeuvre ’n volledige katalogus van die orrelwerke regverdig en om so ’n dokument saam te stel. Om ’n volledige en juiste biografie van die komponis op te stel, word ’n verdere leemte gevul. ’n Oorsig van Suid-Afrikaanse orrelmusiek en komponiste gee ’n blik oor hoe, waar en in watter mate Temmingh funksioneer as ’n ware Suid-Afrikaanse komponis, alhoewel hy in Nederland gebore is. Addisionele inligting, veral nuwe data oor Suid- Afrikaanse orrelkomponiste soos geboorte- en sterfdatums, word in die dokument genoem. Suid-Afrikaanse komponiste word volgens herkoms en nasionaliteit in drie groepe ingedeel. Eie terminologie word hieraan toegeken. Min bronne oor Temmingh is beskikbaar. Daarom is hierdie mini-verhandeling grootliks met die hulp van die komponis saamgestel. Die gebrek aan genoeg literatuur oor Suid-Afrikaanse orrelmusiek en -komponiste het ’n uitdaging gebied vir die skrywer. Met behulp van die chronologiese katalogus van Temmingh se orrelwerke kan ’n onmiddellike oorsig van sy bydrae as orrelkomponis verkry word. Dit behoort musiekbiblioteke en orreliste te help om hulle onvolledige versamelings aan te vul. Hierbenewens sal die nuut-toegekende katalogusnommers ’n aanduiding gee van waar die betrokke orrelwerke chronologies by Temmingh se oeuvre inpas. ENGLISH : Hendrik (“Henk”) Temmingh can be regarded as one of South Africa’s leading organ composers. He showed versatility and established himself as a significant figure in the field of musicology, improvisation and organ music. The aim of the mini-dissertation is to show how Temmingh’s oeuvre justifies a complete catalogue of the organ works, and to compile such a document. Putting together an accurate biography of the composer, will fill another gap. A survey of South African organ music and composers indicate how, where and to what extent Temmingh functions as a true South African composer, although he was born in the Netherlands. Additional information, especially new data regarding South African organ composers such as dates of birth and death, is mentioned in the document. South African composers are divided into three groups according to origin and nationality. Own terminology is allocated to these. Few sources concerning Temmingh are available. Therefore this mini-dissertation was mainly compiled with the help of the composer. The scarcity of enough literature on South African organ music and composers was a challenge for the writer. An immediate summary of Temmingh’s contribution as an organ composer can be obtained with the help of the chronological catalogue of Temmingh’s organ works. This will help music libraries and organists to supplement their incomplete collections. Apart from this, newly allocated catalogue numbers will give an indication of where the works concerned fit in chronologically in Temmingh’s oeuvre.Dissertation (MMus)--University of Pretoria, 2010.
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Jaffrain, Jérôme. "Effet des essences forestières sur le fonctionnement organo-minéral d'un sol acide: observations et modélisations." Phd thesis, Université Henri Poincaré - Nancy I, 2006. http://tel.archives-ouvertes.fr/tel-00171476.
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L‘étude visait à évaluer après 30 ans quels sont les effets de la plantation d'essences sylvicoles sur le fonctionnement organique et minéral d'un sol acide (Breuil, Nièvre). Une parcelle de la forêt native a été préservée à titre de comparaison. Mes travaux se sont concentrés sur deux essences a priori très contrastées, le hêtre et le Douglas (conifère). L'étude a portée sur des solutions de sol collectées à différentes profondeurs et potentiels matriciels ainsi que sur des échantillons de sol. Diverses mesures physico-chimiques ont été réalisées (chimie totale, pH, spéciation aqueuse et solide). Une partie de ces mesures ont servi à simuler la complexation des métaux par les substances humiques (modèle Wham), et d'en obtenir des variables physico-chimiques supplémentaires. Une analyse statistique poussée des données a permis de mettre en évidence des effets nombreux et parfois très marqués de l'essence sylvicole, et d'en identifier les principaux processus/mécanismes contrôlant la composition chimique des solutions et la spéciation de la phase solide. L'intensité des processus semble différer selon l'essence et la profondeur du sol. En particulier, ce travail a pu montrer l'existence dans les deux plantations de processus associés à l'acidolyse, tandis que dans la forêt native les processus semblent plutôt révéler un fonctionnement du type acido-complexolyse.
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Hanke, Daniel. "Gênese, interação organo-mineral e estabilidade de agregados de solos desenvolvidos de basalto." reponame:Repositório Institucional da UFPR, 2012. http://hdl.handle.net/1884/36911.
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Orientador: Prof. Dr. Jeferson DieckowCo-orientador: Prof. Dr. Vander de Freitas Melo
Co-orientadora: Profª. Drª. Fabiane Machado Vezzani
Co-orientador: Prof. Dr. Itamar Antônio Bognola
Co-orientadora: Profª. Drª. Valmiqui Costa Lima
Dissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências Agrárias, Programa de Pós-Graduação em Ciência do Solo. Defesa: Curitiba, 10/02/2012
Inclui referências
Area de concentração : Solo e ambiente
Resumo: As diferenças na química, mineralogia e morfologia dos diferentes solos originados pela evolução de uma vertente, determinam as diferenças existentes no estado de agregação, pois ao se alterar as unidades básicas dos agregados, os complexos organo-minerais, toda a macroestrutura e a relação hierárquica de ordenação são modificadas. Os agregados são importantes na manutenção da porosidade e aeração, no crescimento das plantas e da população microbiana, na infiltração de água, no controle dos processos erosivos, e na manutenção dos estoques de carbono nos solos. A estabilidade dos agregados é variável para cada solo e para cada classe de agregado em função dos diferentes agentes de estabilização. Dessa forma, dentro de uma seqüência de evolução pedogenética haverá alteração nos níveis de estabilidade para os solos e classes de agregados, assim como diferentes mecanismos de formação e estabilização dos agregados e de estabilização carbono nos solos e nas classes. O objetivo desse trabalho foi avaliar a estabilidade dos agregados e os mecanismos de estabilização do carbono em horizontes e classes de agregados de quatro solos em distintos estágios de evolução pedogenética em encosta patamarizada e convexada sobre basalto. O trabalho foi desenvolvido sobre quatro solos em distintos estágios de evolução pedogenética, localizados no município de Londrina/ PR e Cândido Mota/ SP. Os solos estudados foram: 1 - Latossolo Vermelho Acriférrico típico (Latossolo af), 2 – Latossolo Vermelho Eutroférrico típico (Latossolo ef), 3 – Nitossolo Vermelho Eutroférrico típico (Nitossolo) e 4 – Chernossolo Argilúvico Férrico típico (Chernossolo), de onde foram coletados monólitos indeformados, de horizontes superficiais e sub-superficiais, através da abertura de trincheiras. As amostras foram destorroadas e separadas em peneiras de malha de 4,00, 2,00, 1,00, 0,50 e 0,25 mm. Foram realizadas análises químicas, granulométricas, mineralógicas e quantificação dos teores de carbono orgânico total (COT) e nitrogênio total (NT) das amostras inteiras e das classes de agregados. Nas amostras inteiras foram quantificados os teores de carbono orgânico (CO) e nitrogênio (N) nas frações granulométricas dos horizontes. Foi também determinado o diâmetro médio ponderado seco (DMPs), o diâmetro médio ponderado úmido (DMPu) e o índice de estabilidade de agregados (IEA). A estabilidade de agregados também foi realizada pela aplicação de níveis crescentes de energia de ultra-som. Os Latossolos apresentaram maiores teores de argila e de óxidos de ferro e alumínio totais e de alta cristalinidade, enquanto que o Chernossolo apresentou maior teor COT, NT e óxidos de ferro e alumínio de baixa cristalinidade, sendo a fração argila responsável por 75,8 % do estoque de CO nesse horizonte. Para o Nitossolo foram observados valores intermediários. O Chernossolo e o Nitossolo apresentaram as maiores diferenças nos teores de CO e N entre as classes de agregados, sendo os maiores teores observados na classe <0,25 mm. O IEA apresentou foi, no geral, maior no Chernossolo, seguido por: Nitossolo > Latossolo ef > Latossolo af. Para a energia de ultra-som das amostras inteiras os níveis decresceram na ordem: Nitossolo > Chernossolo > Latossolo ef > Latossolo af. Os níveis de energia foram, no geral, superiores para a dispersão das maiores classes de tamanho de agregados e decresceram nas menores classes. As maiores variações de energia entre as classes de agregados foram observadas no Chernossolo e no Nitossolo, sendo que nos Latossolos os níveis tiveram menor variação. Os solos mais jovens possuem maior capacidade de estabilização do CO e N pela argila, em função da maior superfície específica, ao contrário do que ocorre nos solos mais intemperizados. Existem diferenças nos mecanismos de estabilização para cada classe de agregado, que quando observados conjuntamente são de difícil detecção. O efeito da cimentação pelos óxidos de ferro cristalinos e dos maiores teores de argila sobre a estabilização é maior nas menores classes, enquanto que o efeito da matéria orgânica se destaca nas maiores classes. Os solos mais jovens (Nitossolo e Chernossolo) possuem microagregados menos estáveis. Palavras-chave: pedosseqüência; mineralogia; matéria orgânica; agregados; estabilidade.
Abstract: The differences in the chemistry, mineralogy and morphology of the different soils originated by the evolution of a slope, are able to determine the differences in the state of aggregation, because by altering the basic units of the aggregates, the organo-mineral complexes, the hierarchical relationship is altered. The aggregates are important in maintaining the porosity and aeration, on plant growth and microbial population, in water infiltration, control of erosion, and maintenance of carbon stocks in soils. The aggregate stability varies for each soil and for each class, because there different stabilizing agents. Thus, within a sequence of pedogenetic evolution will be no change in the levels of stability for soil and aggregate size classes as well as different mechanisms of formation and stabilization of aggregates and carbon stabilization in soils and classes. The aim of this study is to investigate the stability of aggregates and the stabilization mechanisms of carbon in aggregate size classes and horizons of four soils in different stages of pedogenetic evolution, in patamarizad and convex slopes on the basalt. The study was conducted on four soils located in Londrina/PR and Candido Mota/SP: 1 - an Acric Red Oxisol (Latossolo af) 2 - Eutrophic Red Oxisol (Latossolo ef) 3 - Eutrophic Red Alfisol (Nitossolo) and 4 – Ferric Argiluvic Chernosol (Chernossolo), from which they were collected indeformed monoliths of surface and sub-surface of soils, by trenching. The samples were loosened and separated into mesh sieves of 4.00, 2.00, 1.00, 0.50 and 0.25 mm. Were carried out chemical analysis, granulometric analysis, mineralogical analysis and quantification of total organic carbon (TOC) and total nitrogen (TN) of the entire samples and classes of aggregates. In the entire samples were quantified the contents of organic carbon (OC) and nitrogen (N) in granulometric fractions of horizons. Was calculated the dry mean ponderated diameter (DMPs), the wet mean ponderated diameter (DMPu) and aggregate stability index (IEA). The Oxisols showed higher content of clay and oxides of iron and total aluminum and high crystallinity oxides, while the Chernossolo had higher TOC content, NT and oxides of iron and aluminum amorphous, and the clay fraction is responsible for 75.8% of the stock of CO in this horizon. Intermediate values were observed in the Nitossolo. The Chernossolo and the Nitossolo had the greatest differences in the contents of CO and N among aggregate size classes, the highest contents were observed in class <0.25 mm. The IEA was, in general, higher in the Chernosol, followed by: Nitossolo > Latosolo ef > f Latossolo af. For the energy of ultrasound in the entire samples, the levels decreased followed the order: Nitossolo > Chernossolo > Latossolo ef > Latossolo af. Energy levels were generally higher for the dispersion of the largest size classes of aggregates and decreased in the smaller classes. The greatest variations in energy between the classes of aggregates were observed in Chernossolo and Nitossolo, and Oxisols levels had less variation. The youngest soils have a greater capacity to stabilize the CO and N in the clay fraction, due to higher specific surface area, contrary to what occurs in the most weathered soils. Among the soils and aggregates classes there action of different mechanisms of interaction of SOM with the mineral fraction. The effect of cementation by crystalline iron oxides and clay on the stabilization is greater in smaller classes, while the effect of organic matter is prominent in larger classes. The youngest soils (Nitossolo and Chernossolo) has less stable microaggregates. Keywords: toposequence, mineralogy, organic matter; aggregates; stability
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Ganaye-Dugard, Virginie. "Rôle de la matière organique des sols sur la biodégradation par Rhodanobacter lindaniclasticus d'un composé organo-chloré hydrophobe." Nancy 1, 1998. http://www.theses.fr/1998NAN10354.
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Behnen, Severin Hilar Behnen Severin Hilar Behnen Severin Hilar Behnen Severin Hilar Behnen Severin Hilar Behnen Severin Hilar Behnen Severin Hilar Behnen Severin Hilar. "Volume I. The construction of motion graphics scores Volume II. Seven motion graphics scores /." Diss., Restricted to subscribing institutions, 2008. http://proquest.umi.com/pqdweb?did=1581435611&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.
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Thesis (Ph. D.)--University of California, Los Angeles, 2008.CD-ROM entitled "The motion graphics scores of Severin Behnen" includes the animated scores. Includes bibliographical references (v. 1, leaves 138-142).
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Achelhi, Karima. "Organo-apatites et nanocomposites zircone-hydroxyapatite pour le piégeage des métaux." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2012. http://tel.archives-ouvertes.fr/tel-00827451.
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Le rejet de métaux lourds dans l'environnement pose des problèmes majeurs pour les écosystèmes et la santé humaine. Parmi les solutions proposées, les techniques d'adsorption semblent particulièrement prometteuses. Ce travail de thèse visait à préparer de nouveaux matériaux à base d'hydroxyapatite afin d'améliorer les propriétés d'immobilisation de métaux lourds (Cr, Pb, Zn). Deux approches ont été explorées. La première repose sur la formation d'hydroxyapatite modifiée par les acides carboxyliques qui présentent une affinité pour le calcium de la phase minérale et pour les ions métalliques. Cette approche permet d'obtenir des matériaux hydrides organo-minéraux poreux. Sur la base des caractérisations effectuées, en particulier par DRX, RMN à l'état solide, porosimétrie d'azote et microscopie électronique, l'effet de l'incorporation des acides carboxyliques dans la structure et la chimie de surface des matériaux obtenus a été discuté. Cette discussion constitue la base de l'étude des propriétés d'adsorption des ions Pb2+ et Zn2+. La deuxième approche repose sur l'élaboration de nanocomposites associant l'hydroxyapatite et la zircone. Ce travail décrit une nouvelle voie de synthèse sol-gel de ces matériaux, conduisant l'association des deux phases permet au matériau composite de présenter une bonne affinité pour le Cr(III) et le Cr(VI).
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Janus, Adeline. "Intérêt d’un amendement organo-minéral pour remédier des sols de friches industrielles multicontaminés en milieu urbain." Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10175/document.
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De nos jours, la contamination des sols par les polluants organiques et inorganiques est une problématique majeure. Des techniques douces de remédiation, reposant sur l’utilisation de plantes et de microorganismes, associés à des amendements ou non, sont étudiées pour gérer ces sols. Parmi les différents amendements, le biochar est présenté dans la littérature comme pouvant répondre à ces attentes. Ce travail se propose d’évaluer l’impact des paramètres de pyrolyse sur les caractéristiques de huit biochars élaborés à partir de Miscanthus x giganteus, cultivé sur un sol contaminé en métaux, et de sélectionner le(s) biochar(s) susceptible(s) d’être le(s) plus performant(s) en termes de remédiation de sols contaminés en métaux (Cd, Pb, Zn) et/ou HAP. Il a été mis en évidence une forte influence de la température de pyrolyse sur les caractéristiques des biochars. De plus, les biochars ont présenté de fortes capacités de sorption des trois métaux et des HAP en solution, notamment pour les biochars produits à 600°C. Des expérimentations réalisées avec un sol artificiel et une terre agricole contaminés artificiellement ont mis en évidence la capacité de certains biochars à diminuer la disponibilité environnementale, la biodisponibilité et la bioaccessibilité orale des métaux et des HAP. Sur la base des résultats obtenus, un biochar a été sélectionné comme répondant le mieux aux attentes en termes de gestion de sols multicontaminés. Compte tenu des modifications structurelles du biochar dans les sols, il conviendrait de valider ces résultats sur le long terme, en condition in situ, tout en s’assurant de l’innocuité du biochar étudié et en intégrant les aspects socio-économiquesNowadays, soil contamination by the organic and inorganic pollutants represent a major issue. Gentle remediation options, comprising plants and microorganisms, and linked with the use of amendments or not, are implemented to manage these soils. Among the different amendments, the biochar is presented in the literature as being able to meet these expectations. This study aims at evaluating the impacts of pyrolysis parameters on the characteristics of eight biochars derived from Miscanthus x giganteus, grown on metal contaminated soils, and selecting the one which may be the most efficient to remediate metals (Cd, Pb, Zn) and/or PAHs contaminated soils. A strong influence of pyrolysis temperature on biochar characteristics was detected. Moreover, biochars showed strong sorption capacity for the three metals and PAHs in aqueous solution, especially for those produced at 600°C. Experiments realized with an artificial soil, and an agricultural soil, both artificially contaminated, demonstrated the efficiency of some biochars to decrease the environmental availability, bioavailability and oral bioaccessibility of the metals and PAHs. Based on the results, one biochar was selected as being the most efficient to manage the contaminated soils. In view of the structural modifications of biochars in soils, these results should be validated in situ on long term basis, while ensuring the harmless effects of the studied biochar and integrating the socio-economic aspects
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Arenas, Leliz Ticona. "Síntese, caracterização e propriedades de xerogéis híbridos organo inorgânicos à base de sílica." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/10998.
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O presente trabalho descreve a síntese, a caracterização e o estudo das propriedades de materiais híbridos nanoestruturados constituídos de sílica e do grupo orgânico 1,4- diazabiciclo[2,2,2]octano (dabco). A síntese desses materiais foi realizada pelo método solgel, partindo-se de precursores organosilanos desenvolvidos em nosso laboratório. Foram sintetizados materiais híbridos contendo o grupo orgânico covalentemente ligado à estrutura da sílica na forma pendente, contendo uma carga positiva (1-aza-4-azoniabiciclo[2,2,2] octano) e também materiais contendo o grupo orgânico na forma duplamente carregada, constituindo pontes (1,4-diazoniabiciclo[2,2,2]octano). Para o híbrido que apresenta o grupo orgânico na forma de pontes, foram sintetizadas amostras variando-se o conteúdo orgânico. Nas amostras com baixo conteúdo orgânico (até 3 %) observou-se que o diâmetro dos microporos está relacionado com o tamanho da cadeia desse grupo. Nas amostras com maior conteúdo orgânico a análise por difração de raios X evidenciou uma organização nanoestrutural que apresentou espaçamentos interplanares impostos pelo grupo orgânico positivamente carregado. A presença de birrefringência óptica nos materiais confirmou a existência de organização estrutural anisotrópica. Adicionalmente, as amostras mostraram-se transparentes e termicamente estáveis. A presença do contra-íon cloreto nos híbridos permitiu seu uso como trocadores aniônicos na adsorção de Cr (IV) de soluções aquosas. Adicionalmente, foi possível imobilizar espécies eletroativas aniônicas, tais como o hexacianoferrato e o corante amarelo brilhante. Foram preparados eletrodos de pasta de carbono modificados com essas amostras e realizados estudos de voltametria cíclica, onde foi observado que essas espécies eletroativas encontram-se fortemente adsorvidas nos poros. O eletrodo de pasta de carbono modificado com uma amostra de híbrido contendo sílica/titânia e corante amarelo brilhante foi utilizado como mediador na eletroxidação do ácido ascórbico, possibilitando o desenvolvimento de um sensor para vitamina C. Na perspectiva de estudar fatores que afetam as características morfológicas e texturais de materiais resultantes de sínteses em sistemas híbridos, apresenta-se também, a preparação de xerogéis microporosos de sílica, com área superficial elevada, acima de 800 m2g-1. Esses xerogéis foram obtidos estudando-se alguns parâmetros experimentais como a temperatura de gelificação, solvente e catalisadores, sendo que a presença do ácido acético mostrou-se o fator primordial.The present work describes the synthesis, the characterization and the study of properties of the hybrid nanostructured materials constituted by silica and the organic group 1,4-diazabicycle[2,2,2]octane (dabco). The synthesis of the materials was performed using the sol-gel method, starting from organosilane precursors developed in our laboratory. Hybrid materials with the organic group covalently bonded to silica structure in the pendant form were prepared, containing one positive charge (1-aza-4-azoniabicycle[2,2,2]octane), and also hybrid materials with the organic group in the double charged form, forming bridges (1,4- diazoniabicycle[2,2,2]octane). For the hybrid presenting the organic group in the bridged form, samples varying the organic content were prepared. In the samples with low organic content (up to 3 %) it was observed that the diameter of the micropores was related to the chain length of the organic group. In the samples with high organic content the X-ray diffraction analysis showed nanostructural organization with interplanar distances imposed by the positively charged organic group. The presence of optical birefringence in the materials confirmed the existence of anisotropic structural organization. Additionally the samples were transparent and thermally stable. The presence of chloride contra-ions in the hybrids afforded their use as anionic exchangers in the adsorption of Cr (VI) from aqueous solutions. Additionally, it was possible to immobilize anionic electroactive species like hexacyanoferrate and brilliant yellow dye. Modified carbon paste electrodes were prepared with these samples and cyclic voltammetry studies were performed. It was observed that these electroactive species are strongly adsorbed in the pores. The carbon paste electrode modified with a hybrid containing silica/titania and brilliant yellow dye was used as mediator in the electroxidation of ascorbic acid, enabling the development of a sensor for vitamin C. In the perspective to study the factors that affect morphological and textural characteristics of materials resulting from syntheses in hybrid systems, it was also presented the preparation of silica microporous xerogels with high surface area, above 800 m2 g-1. These xerogels were obtained studying some experimental parameters as gelation temperature, solvent and catalyst, being that the presence of acetic acid was significant.
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Salvador, Marília Vilela. "Impacto da razão entre alcóxissilanos contendo grupo amina e grupo nitrila nas propriedades físico-químicas das partículas submicrométricas de ormosil obtidas via Processo Sol-Gel com poli-heterocondensação." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/18/18158/tde-19052017-085226/.
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Partículas submicrométricas esféricas de sílica são tradicionalmente obtidas via processo sol-gel, em meio básico, levando a materiais com morfologia e área superficial bem definida. Contudo, poucos são os trabalhos reportados na literatura, que demonstram se esta mesma rota pode ser usada para se obter partículas organicamente modificadas em uma única etapa com o mesmo controle de morfologia e área superficial via reações de poli-heterocondensação de organo-alcoxisilanos contendo diferentes funcionalidades. Tais materiais são comumente chamados de materiais híbridos de classe II do tipo Silicatos Organicamente Modificados (Ormosils). Funcionalidade orgânicas do tipo nitrogenadas foram escolhidas para verificar a viabilidade desta rota sintética devido ao grande potencial destas como suportes catalíticos, adsorção de CO2, fases cromatográficas estacionárias polares e para cromatografia de afinidade, suportes para partículas fotocrômicas, e uso em eletrodos quimicamente modificados. Tendo em vista que ormosils nitrogenados com grupos amino podem ser obtidos via utilização de aminopropiltrietoxisilano e para o espaçamento destes grupos uma escolha comum á a utilização de silanos contendo grupos nitrila, foram estudadas diversas formulações com diferente razão molar de 3-aminopropiltrietoxissilano (APTS) e 4-(trietóxisilil)butironitrila (BUTS). Os resultados mostraram que a premissa inicial de que o método de poli-heterocondensação em meio básico não pode ser utilizado indiscriminadamente para a obtenção de partículas submicrométricas esféricas é parcialmente correto, de fato apenas uma estreita faixa de concentração permite obter esta morfologia e desde que não esteja presente o BUTS. Este silano parece influenciar decisivamente na morfologia e na área superficial dos ormosils obtidos. Assim, a rota de poli-heterocondensação ou one-pot foi efetiva para obter partículas modificadas com grupos amino, mas não pode ser usada para obter estas mesmas partículas modificadas com qualquer proporção de grupos nitrila. Todos os materiais híbridos sintetizados demonstraram capacidade de adsorção de hexaaquocobre(II) a partir de soluções aquosas podendo ser utilizados para aplicações que envolvem a sorção destes metais, por exemplo em hidrometalurgia ou remediação ambiental. Os estudos de RPE dos ormosils com Cu(II) mostraram que estes íons se adsorveram nos grupos amina, ou seja, estes estão acessíveis para reação com adsorbatos.Desta forma estes ormosils podem em trabalhos futuros ser explorados para imobilização de enzimas via ligação peptídica, adsorção de CO2 ou agente de reforço mecânico em compósitos com biopolímeros como quitosana, quitina, pectina, ácido algínico para uso em cosmetologia ou liberação controlada de nutrientes.Silica Spherical sub-micrometric particles are often obtained by sol-gel processing in basic media. Nevertheless, a few works in the literature deals with the synthesis of particles bearing different functionalities by poly-heterocondensation of silanes with different organic moieties. These materials are commonly called class II hybrid materials belonging to the Organically Modified Silicate (ormosil) type. Nitrogenated Ormosil particles were chosen to be prepared since they can be used as support for heterogeneous catalysis, CO2 adsoprtion, polar chromatographic stationary phases, support for photochromic dyes, and support for modified electrodes. Considering the use of aminopropyltriethoxysilane to obtain amino-modified silicas and the use nitrile bearing silanesas spacers on these materials, we have chosen 3-aminopropyltriethoxisilane (APTS) and 4-(triethoxysilil)buthyronitrile (BUTS) as nitrogenated silanes. Different molar ratio of these silanesto tetraethylorthosilicate (TEOS) were testedto study its impact on the morphology and physico-chemical properties of these materials. Only a narrow range of APTS/TEOS molar ratio resulted on spherical submicrometric particles, and no formulation with BUTS leads to spherical morphology. All formulations resulted on efficient hexaaquacopper(II) ions from aqueous solutions, therefore can be used for hydrometallurgy, environmental remediation. The Electron Paramagnetic Resonance Spectroscopy showed chemisorption of the copper ions in the amino groups, thus proving the amino groups are accessible. Therefore, they are also accessible for CO2 adsoprtion, enzyme immobilization, or reinforcement agent in composites with biopolymers such as chitosan, chitin, pectin and alginic acid for cosmetology, or controlled nutrient release.
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Kedi, Atolé Brice. "Fonctionnement des phosphatases dans les sols tropicaux : influence de la composition organo-minérale sur l'expression de l'activité enzymatique." Thesis, Montpellier, SupAgro, 2011. http://www.theses.fr/2011NSAM0049/document.
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La prédiction de l'activité des phosphatases fongiques dans l'amélioration de la nutrition phosphatée doit prendre en compte les facteurs qui influencent leur fonctionnement dans les sols. L'objectif de cette thèse a été d'étudier divers facteurs qui pouvaient influencer l'efficacité des phosphatases de champignons ectomycorhiziens dans les sols. L'adsorption et l'activité à l'état adsorbé des phosphatases de Suillus collinitus et de Hebeloma cylindrosporum ont été étudiées avec plusieurs fractions de différents sols tropicaux. La persistance de l'activité de ces enzymes immobilisées sur les sols a également été étudiée. Ces phosphatases ont montré une diversité d'affinité avec les colloïdes des sols, liée surtout à leur origine et leurs caractéristiques. En outre, aucune relation n'a été établie entre l'adsorption et l'activité catalytique résultante, car il n'y avait généralement pas de perte d'activité à l'état adsorbé. L'une des enzymes qui à montré une dégradation rapide en solution suivant le temps d'incubation, a été protégée par les sols ferrallitiques mais pas par les vertisols. Des essais de purification et de caractérisation ont été faits sur ces échantillons de phosphatases fongiques. Les fractions de phosphatases de S. collinitus purifiées et retenues sur une colonne hydrophobe de chromatographie ont montré une activité en contact avec des argiles fortement supérieure à celle en solution. L'hypothèse d'une dimérisation produite à la surface des argiles a été avancée pour expliquer l'amplification inattendue d'activité catalytique à l'état adsorbé des fractions purifiéesThe role of catalytic activity of fungal phosphatases in the improvement of the phosphorus nutrition cannot be reliably predicted without taking into account the factors which influence their behaviour in the soil. The objective of this thesis was to study various factors which could influence the effectiveness of ectomycorrhizal fungal phosphatases in soils. Adsorption and the activity in the adsorbed state of phosphatases produced by Suillus collinitus and Hebeloma cylindrosporum were studied in contact with several fractions of various tropical soils. The persistence of the activity of these enzymes immobilized on the soils was also studied. These phosphatases showed a diversity of affinity for soil colloids, due to their origin and their characteristics. Moreover, no relation was found between adsorption and the resulting catalytic activity; there was generally no loss of activity in an adsorbed state. One of the enzymes which underwent rapid degradation in solution was protected by the presence of ferrallitic soils but not by the vertisols. These fungic phosphatase samples were purified and partially characterized. The fractions of S. collinitus phosphatases retained on hydrophobic chromatography column showed enhanced activity in contact with mineral clays with respect to solution. The hypothesis of dimeerisation on the clay surfaces was advanced to explain the unexpected enhancement of catalytic activity in an adsorbed state of the purified fractions
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Henao, Valencia Lina Judith. "Etude des bases moléculaires de l'agrégation des sols par des exopolysaccharides bactériens." Phd thesis, Université Joseph Fourier (Grenoble), 2008. http://tel.archives-ouvertes.fr/tel-00384923.
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Les exopolysaccharides d'origine microbienne (EPS) jouent un rôle déterminant dans la stabilisation des agrégats du sol en s'associant avec les argiles minérales. Dans le cadre de ces travaux de recherche, nous nous sommes intéressés à l'étude des interfaces argile/EPS à l'échelle moléculaire par modélisation moléculaire. La montmorillonite sodique (Na-MMT) a été choisie comme modèle représentatif de l'argile minérale et plusieurs EPS ont été considérés : le dextrane, le MWAP71, le xanthane, le KYGT207, le rhamsane, YAS34 et le succinoglycane. Nous avons abordé deux aspects : (a) l'adsorption des unités constitutives des EPS sur la surface basale de Na-MMT, et (b) les relations établies entre les différences molécules dans des complexes argile/EPS/eau. Tous les EPS considérés présentent une affinité par la surface minérale, les interactions établies aux interfaces sont multiples, elles peuvent être ioniques, hydrophobes et des liaisons hydrogène. Nous avons constaté une corrélation linéaire entre l'enthalpie d'adsorption et la surface en contact. L'analyse des structures indique que le facteur déterminant pour l'adsorption est l'habilité des EPS à se déplier pour maximiser la surface en interaction. Pour les complexes argile/EPS/eau, les modèles montrent que l'interaction avec l'eau est la plus forte aux taux d'hydratation les plus faibles, montrant que le système s'oppose à la dessication. En revanche, l'interaction de l'EPS avec la surface de l'argile évite la dispersion des feuillets quand il y a un excès d'eau. Les résultats obtenus par modélisation présentent une bonne corrélation avec les observations expérimentales.
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De, Junet Alexis. "Caractérisation et dynamique des matières organiques stabilisées au sein des complexes organo-minéraux de sols tropicaux, Ile de La Réunion." La Réunion, 2008. http://www.theses.fr/2008LARE0019.
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Les interactions entre les phases minérales et les matières organiques du sol (MOS) conduisent à la formation de complexes organo-minéraux (cplxMO/Mi) qui protègent les MOS contre la biodégradation. Ces cplxMO/Mi sont peu étudiés alors qu’ils jouent un rôle prépondérant dans le stockage du carbone (C) organique dans les sols. Notre travail porte sur (i) la caractérisation des MOS liées aux phases minérales et (ii) l’évaluation de la dynamique du C stabilise au sein des cplxMO/Mi. Nous avons étudié trois types de sols tropicaux, issus de l’île de La Réunion (Andosol perhydraté, Andosol et Cambisol). Les MOS sont analysées par méthode spectroscopique et pyrolytique. Nos résultats montrent que les polysaccharides, les lipides et les composes azotes sont fortement présents dans les cplxMO/Mi, contrairement à la lignine. Les MOS liées aux oxydes de fer présentent un temps de recyclage nettement plus élevé que les MOS liées aux aluminosilicates faiblement cristallisés et celles liées à la gibbsiteInteractions between mineral phases and soil organic matter (SOM) lead to the formation of organo-mineral complexes (OM/Micplx), which protect SOM against biodegradation. These OM/Micplx are poorly studied while they have a preponderant role in soil organic carbon (C) storage. Our work focused on (i) the characterization of SOM bound to mineral phases and (ii) the evaluation of C dynamics within OM/Micplx. We studied three different tropical soils which come from La Reunion island (hydric Andosol, Andosol and Cambisol). SOM were analyzed with pyrolitic and spectroscopic method. Our results shown that polysaccharids, lipids and N-compounds (proteins and/or amino acids) were strongly present in OM/Micplx, contrary to lignin. SOM associated with iron oxides have a turn-over higher than SOM associated with aluminosilicates poorly crystallized and SOM associated with gibbsite. Overall, origin and turnover of SOM changed according to the type of mineral phases with which they were bound to
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Sayen, Stéphanie. "Réactivité de nouveaux matériaux hybrides organo-minéraux à base de silice en solution aqueuse : applications électrochimiques." Nancy 1, 2003. http://www.theses.fr/2003NAN10152.
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Cette thèse concerne l'étude de la réactivité en milieu aqueux de matériaux organo-minéraux à base de silice, synthétisés par copolymérisation selon le procédé sol-gel. De par leurs propriétés attrayantes (rigidité, porosité importante, organisation à longue distance), ces composés sont exploitables en tant que modifiants d'électrode pour des applications en électroanalyse. La première partie porte sur l'influence de la structure et de la composition de silices fonctionnalisées par des groupements SH et NH2 sur leur réactivité vis-à-vis des ions Cu2+ et Hg2+ (capacité de fixation, vitesse d'accès aux sites). Les résultats obtenus ont alors permis la synthèse, dans une seconde partie, d'un matériau silicique plus complexe dérivé de la carnosine et son application à la détection électrochimique du cuivre(II). Enfin, une méthode originale d'électrodéposition a permis l'obtention de films sol-gel fonctionnalisés sur électrode d'or, poreux et mécaniquement stablesThis thesis deals with the study of the reactivity in aqueous medium of organic-inorganic silica-based materials which were synthesised by copolymerisation according to the sol-gel process. Given their attractive properties (rigidity, great porosity, long range order) these compounds are well-suited as electrode modifiers for applications in electroanalysis. The first part concerns the influence of structure and composition of the SH- and NH2- functionalized silicas towards Cu2+ and Hg2+ ions (uptake and kinetics of complexation). In a second part the obtained results have allowed the preparation of a more complex carnosine-based silica material and its application to the electrochemical detection of Cu2+. Finally a new and versatile method was proposed to generate by electrodeposition porous and mechanically stable functionalized sol-gel films on gold electrode
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Franc, Janyce. "Élaboration et mise en oeuvre de couches minces organo-silicates synthétisées par voie sol-gel : application à l'interconnexion optique." Saint-Etienne, 2007. http://www.theses.fr/2007STET4012.
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Bien que les interconnexions optiques sur de longues distances soient supplantées depuis longtemps par leurs homologues électriques, la fabrication tout optique d'interconnexions sur courtes distances n'a pas encore été achevée en raison de la difficulté à les intégrer de manière simple et rentable sur des cartes de circuits imprimés. Les structures de couplage sont les éléments clés de ces dispositifs d'interconnexion sur courtes distances car d'une part elles peuvent limiter significativement l'efficacité globale des composants et d'autre part, représentent la majeure partie de leur prix. De par leur taille et poids réduits, les coupleurs à réseaux jouent un rôle important dans la miniaturisation des systèmes. Ils ont également l'avantage d'être compatibles avec les technologies planaires existantes ainsi qu'avec une production en série. Dans ce manuscrit, nous proposons de fabriquer et de caractériser un démonstrateur tout optique comprenant 2 réseaux résonnants agissant comme les portes d'entrée et de sortie de la lumière propagée dans un guide d'ondes multimode. Son design est original et permet théoriquement d'atteindre une efficacité de 90%. Dans le cadre d'un réseau d'excellence européen en micro-optique (NEMO), nous avons comparé l'efficacité de 2 démonstrateurs fabriqués sur le même principe. Le premier utilise des matériaux commerciaux pour la fabrication des réseaux de diffraction et du guide d'ondes multimode, tandis que le second utilise des matériaux innovants (matériaux hybrides organiques-inorganiques) ainsi que des procédés développés au laboratoire Hubert CurienAlthough optical links have supplanted their electrical counterparis in long distance high rate transmission communications, the predicted transition to all optical interconnections at the board level has not happened yet. One of the reasons is that it turned out to be more difficult than expected to integrate optical interconnections in an easy and cost effective way into or onto a board. In short distance optical interconnaections, coupling structures are key elements as they significantly limit the overall efficiency of the components and represent the major part of the cost of an interconnection circuit. Diffraction grating couplers are bound to play an increasingly important role in miniaturised systems as they bring reduced weight and size, and have the advantage of being compatible with wafer or board scale batch planar manufacturing processes. In this work, the fabrication process and the characterization of a simple coated platform composed of two resonant gratings that allow light propagation in a highly multimode polymer waveguide are described. Its design is original and might enable to theoretically reach 90% efficiency. In the framework of the European network of excellence in Micro-Optic (NEMO), the abilities of two demonstrators fabricated according to the same schema have been compared : one uses commercial materials for the fabrication of diffraction gratings and waveguide whereas another one uses innovating materials and processes developed in the Hubert Curien Laboratory
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Goncalves, Roseli Fernandes. "Cultivo de células epiteliais da tuba uterina de bovinos na presença e ausência de soro fetal bovino: análise bioquímica, morfológica e morfométrica." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/10/10132/tde-07082007-132913/.
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Foi realizado um estudo bioquímico, morfológico e morfométrico de células epiteliais da tuba uterina de bovinos na presença e ausência de soro fetal bovino in vitro. Para determinar os efeitos dos soro fetal bovino sobre as células foram utilizados como parâmetros sua influência sobre o crescimento, a morfologia qualitativa e quantitativa, o consumo de glicose, a síntese protéica, a atividade da fosfatase láctica e da deidrogenase láctica, em diferentes dias de cultivo. Nas eletromicrografias foram analisados os seguintes componentes celulares: núcleo, grânulos de secreção, mitocôndrias, retículo endoplasmático rugoso, aparelho de Golgi e outras estruturas citoplasmáticas. A cinética de crescimento foi maior na presença de soro. A microscopia eletrônica de transmissão evidenciou inicialmente dois tipos de células, as ciliadas e as secretoras que foram gradativamente diferenciando-se durante todo o tempo de cultivo, na presença e na ausência de soro fetal bovino. Na presença de soro observou-se uma monocamada confluente no dia cinco, enquanto na ausência do mesmo não se notou monocamada confluente até o final do experimento. Um terceiro tipo celular foi observado, tratava-se de uma célula da monocamada com microvilosidades. A análise morfométrica revelou que os três tipos celulares apresentaram diferenças significativas em alguns dos parâmetros avaliados. A análise bioquímica evidenciou algumas diferenças significativas no meio de cultivo. Pode-se concluir que o soro fetal bovino não interfere nas principais características morfológicas, mas sim na formação da monocamada e de certos parâmetros morfométricos e bioquímicos, talvez por apresentar componentes desconhecidos, tais como, proteínas, ácidos graxos, fatores de crescimento, aminoácidos e/ou vitaminas, sendo que a presença e concentração destes pode variar muito entre diferentes lotes, alterando o meio de cultivo. Estudos com outros suplementos ou mesmo fatores de aderência devem ser realizados visando um modelo in vitro que auxilie na compreensão das interações das células da tuba uterina com os gametas e embriões.The biochemistry, morphology and morphometry study were performed in bovine tuba uterina epithelial cells in vitro with and without bovine calf serum. It has been observed the effects of bovine calf serum in the cells by growth, qualitative and quantitative morphology, glucose and protein source, acid phosphatase and lactica deidrogenase in differents days. It has been analysed some cell structures, like: nuclei, Golgi regions, rough endoplasmatic reticulum, mitochondria, secretory vesicles and others by the electron microscopy. The cell growth was higher with serum. The electron microscopy has showed two cells: the secretory and ciliated, both were differentiating during the experiment. The monolayers with serum was confluent in the day 5, but it has not happened the same without serum. The structural analysis of monolayer showed a cell with microvilli. The morphometry and biochemistry have showed significant differences in both cells and in the medium. Maybe it has been happened because the serum is an effective growth-promoting supplement. Therefore, more studies are needed with others supplements or attachment factors to have in vitro model that mimic in vivo conditions most closely to study the interactions between bovine tuba uterina epithelial cells and gametes or embryos
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Akpakouma, Ayitre. "Qualités chimiques et biochimiques des solides de lisier de porc pour une formulation optimale d'engrais organo-minéraux." Master's thesis, Université Laval, 2009. http://hdl.handle.net/20.500.11794/20592.
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Le phosphore apporté aux cultures par les engrais de synthèse est très peu disponible pour les plantes dans les sols hautement fixateurs en P. Seulement 5 à 20 % de la dose apportée reste disponible la première année d' application (Khiari et Parent, 2005). La mise en contact de solides de lisier de porc déshydratés (SLP) augmenterait l' efficacité d' utilisation du phosphore. Toutefois, il est important de développer des critères d ' acceptabilité pour leur donner une valeur fertilisante commerciale et réduire du coup les risques de pollution par le phosphore. La caractérisation de 9 solides de lisier de porc (SLP) montre qu' ils possèdent un bon pouvoir tampon comparativement à la tourbe, une salinité acceptable, une valeur fertilisante intéressante et pour ceux qui ont subit un compostage complet, une bonne stabilité biologique. Une substitution de la tourbe par un SLP issu d'une Centrifugeuse Mobile (CM) montre que le meilleur taux de disponibilité de P des engrais organo-minéraux est obtenu avec la fonnule suivante: 12% tourbe. 480/0 CM, 200/0 phosphate mono ammoniacal et 20 % phosphate di-ammoniacal surtout dans les sols argileux.
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Brault, Marie-Esther. "Efficacité agro-environnementale d'un engrais organo-minéral à base de lisier de porc bio-traité." Thesis, Université Laval, 2007. http://www.theses.ulaval.ca/2007/24355/24355.pdf.
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Franc, J. "elaboration et mise en forme de couches minces organo-silicates synthétisées par voie sol-gel : application à l'interconnexion optique." Phd thesis, Université Jean Monnet - Saint-Etienne, 2007. http://tel.archives-ouvertes.fr/tel-00366957.
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Bien que les interconnexions optiques sur de longues distances soient supplantées depuislongtemps par leurs homologues électriques, la fabrication tout optique d'interconnexions surcourtes distances n'a pas encore été achevée en raison de la difficulté à les intégrer de manièresimple et rentable sur des cartes de circuits imprimés.Les structures de couplage sont les éléments clés de ces dispositifs d'interconnexion sur courtesdistances car d'une part elles peuvent limiter significativement l'efficacité globale des composants etd'autre part, représentent la majeure partie de leur prix. Nous avons choisi de travailler avec descouplages à réseaux qui ont l'avantage d'être compatible avec les technologies planaires existantesainsi qu'avec une production en série. Dans ce manuscrit, nous proposons de fabriquer et decaractériser un démonstrateur tout optique comprenant deux réseaux résonnants agissant commeles portes d'entrée et de sortie de la lumière propagée dans un guide d'ondes multimode. Sondesign est original et permet théoriquement d'atteindre une efficacité de 90 %.
Dans le cadre d'un réseau d'excellence européen en micro-optique (NEMO), nous avons comparél'efficacité de deux démonstrateurs fabriqués sur le même principe. Le premier utilise des matériauxcommerciaux pour la fabrication des réseaux de diffraction et du guide d'ondes multimode tandisque le second utilise des matériaux innovants (tels que les matériaux hybrides organo-minéraux)ainsi que des procédés développés au laboratoire Hubert Curien.
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Duhart, Anne. "Synthèse et caractérisation de membranes hybrides organo-minérales contenant des calixarènes. Application au traitement des effluents radioactifs." Montpellier 2, 1998. http://www.theses.fr/1998MON20051.
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Dans le cadre du programme actinex dont l'objectif global est une reduction massive de la nocivite des dechets vitrifies principalement due aux actinides et aux autres produits de fission a vie longue tels que l'iode#1#2#9, le technetium#9#9 ou le cesium#1#3#5, il convient de definir des moyens de traitement specifiques applicables aux procedes industriels de retraitement du combustibles nucleaire use. L'extraction selective de ces radioelements en vue de leur transmutation ou de leur conditionnement dans des matrices specifiques est un des axes de recherche de ce programme. Differentes etudes permettant l'extraction de radioelements tels que le cesium, l'americium et le plutonium par transport diffusionnel preferentiel a travers une membrane liquide supportee (mls) de complexes formes entre un transporteur selectif et les radioelements cibles, sont actuellement menees au laboratoire des procedes de traitement des effluents (lpte). Les calix4arenes mono/bis-couronne-6 sont utilises comme transporteurs selectifs possedant d'excellentes proprietes extractives et ionophoriques vis-a-vis de radioelements tels que le cesium. Cependant, la presence de solvant organique dans une mls ainsi que les pertes possibles du transporteur par dissolution dans les phases aqueuses ont oriente nos recherches vers un materiau solide dans lequel le transporteur se trouve chimiquement lie ou piege dans la matrice. Le transporteur, un calixarene dissymetrique doublement ponte a ete synthetise specifiquement pour cette etude et comporte une premiere cavite favorable a la complexation du cesium et une deuxieme chaine pontante permettant de lier chimiquement la partie organique du calixarene au squelette mineral d'un heteropolysiloxane. Ces monomeres possedent tout deux des groupements polycondensables par le procede sol-gel qui conduisent a la formation d'un reseau de liaisons chimiques tridimensionnel. La matrice ainsi obtenue peut etre supportee sur un materiau mineral ou organique poreux. Les caracterisations structurales (rmn, irtf, diffusion de la lumiere) et physiques (viscosimetrie) des prepolymeres ainsi que les caracterisations texturales des couches deposees (meb, adsorption-desorption d'azote, atg) ont permis d'etablir des correlations entre la preparation des materiaux et leurs proprietes appliquees a l'extraction du cesium afin d'en reajuster les parametres. Des experiences de transfert du cesium a travers la membrane solide contenant de 2 a 40% de transporteur, placee entre deux compartiments contenant en amont, une solution d'alimentation acide a forte salinite dopee en cesium#1#3#7 et en sodium#2#2, et en aval, une solution de desextraction neutre, ont ete realisees. En comparaison avec une membrane liquide supportee une moindre selectivite cs#1#3#7/na#2#2 de la membrane due a une deformation de la couronne complexante du calixarene dissymetrique ou au caractere trop hydrophile du materiau generant des courts-circuits de diffusion ou chemins preferentiels parasites. Des experiences d'extraction liquide-liquide et solide-liquide, effectuees par mise en contact d'une solution aqueuse acide a forte salinite dopee avec respectivement une phase organique contenant le calixarene dissymetrique et des gels broyes sous forme de poudre, permettent a la fois d'optimiser les parametres d'extraction et d'etablir un referentiel par rapport aux experiences de transport facilite par membranes solides.
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Thepot, Philippe. "Matériaux hybrides organo-minéraux élaborés à partir de précurseurs moléculaires à liaison Si-C. Caractérisation et réactivité." Montpellier 2, 1993. http://www.theses.fr/1993MON20108.
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Des materiaux amorphes hybrides organo-mineraux de type silsesquioxane rsio#1#,#5 ont ete elabores, par la voie sol-gel, a partir de monomeres organosilicies polyfonctionnels. Les solides obtenus sont microporeux et presentent de grandes surfaces specifiques. Les caracteristiques physiques et morphologiques dependent plus des conditions experimentales que de la structure et de la geometrie des precurseurs moleculaires simples etudies. L'influence d'interactions entre les molecules de precurseur sur l'elaboration du solide a egalement ete mise en evidence. La formation de gels a partir de precurseurs olefiniques est catalysee par des sels de pd#i#i. La coordination de molecules de precurseur sur le metal accelere notablement la polycondensation et conduit a des solides de tres faible porosite ou surface specifique. Un gel hybride contenant des unites complexe de transfert de charge terthiophene/tcnq a ete caracterise. Ce solide presente des caracteristiques tres differentes de celles de gels analogues obtenus en l'absence de tcnq. L'oxydation de la liaison si-c dans des gels a ponts thiophenylene a permis de mettre en evidence la formation de polythiophene au sein du solide amorphe. Ce couplage oxydant a ete etendu aux monomeres silyles en solution. L'oxydation anodique permet d'obtenir des polythiophenes dont les caracteristiques ir et raman revelent des longueurs de conjugaison tres elevees. Enfin, la liaison si-c labile dans des gels hybrides contenant des motifs 1,3-butadiyne a permis l'elimination du motif organique dans des conditions douces, ouvrant ainsi des perspectives pour l'elaboration controlee de gels inorganiques a partir de materiaux hybrides
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Tamrat, Wuhib Zewde. "Sequestration of soil organic matter by nanominerals : experimental approach to the formation of organo-mineral complex from biotite alteration products." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0624.
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Les interactions organo-minérales contrôlent la stabilisation de la matière organique du sol. Les nanominéraux, résultant de l'altération continue des minéraux, précipitent à partir d'espèces ioniques à leur surface. Les derniers travaux de simulation en laboratoire se sont focalisés sur les nanophases de Fe et Al. Dans ce travail, des simulations en laboratoire ont été réalisées sur les processus d'altération de la biotite et les néoformations résultantes, après hydrolyse d’espèces dissoutes d'un système Si Fe Al Mg et K, en présence et en absence de C. La structure des phases a été caractérisée par TEM- EDX et Fe-EXAFS.En l'absence de C, des nanominéraux amorphes de 10-60nm sont formés, la composition étant contrôlée par le pH en fin d'hydrolyse. A pH4.2 et 7, leur composition est dominée par Fe, dont la polymérisation est perturbée par Al Si Mg et K. Inversement, à pH5, la polymérisation du Fe est limitée par la précipitation de grandes quantités de Si. En présence de C, les complexes organo-minéraux synthétisés sont des particules amorphes de 2-200nm. Leur taille augmente avec la teneur croissante en C jusqu'à un ratio métal/C de 1. La précipitation engendre 2 familles: (1) les petites particules chimiquement similaires à la solution de lixiviat; (2) les plus grosses fortement contrôlées par la teneur de C. La composition de ces dernières est dominée par Si lorsque C est faible, et par Fe lorsque C est élevé. Le changement de chimie entre les particules plus petites et plus grandes ainsi que le rôle de Si sont importants mais souvent négligés. Ainsi, ces résultats éclairent l'effet des variations de C sur l'affinité des espèces inorganiques dans les systèmes naturelsOrgano-mineral interactions, due to the high reactivity of nanominerals, play a major role in soil organic matter stabilization. Nanominerals, which are the result of the continuous alteration of minerals, precipitate from ionic species at the mineral solution interface. In literature, only Fe and Al get emphasis with regard to batch-synthesized nanomineral studies. In this work, laboratory simulations were carried out on the post biotite alteration processes and the resulting neoformations after hydrolysis of the dissolved species from a Si Fe Al Mg and K system, in the presence and absence of C. New phases were characterized by TEM-EDX and EXAFS at the Fe K-edge.In C absence, 10-60nm sized amorphous nanominerals are formed whose composition is controlled by pH at the end of the hydrolysis. For pH4.2 and 7 phases, composition is dominated by Fe, whose polymerization is hindered by Al, Si, Mg and K. Conversely, at pH5, the overall presence of Fe is counteracted by precipitation of high amounts of Si. In C presence, precipitates are amorphous 2-200nm sized particles. This size increases with increasing C presence until a molar Metal:C=1. Precipitation resulted into two distinct size ranges. Smaller particles chemically resemble the leachate solution, while for larger particles it is influenced by C concentration. Composition of larger particles is dominated by Si at low C compositions while by Fe at higher ones. Interesting is the change in chemistry between smaller and larger particles as well as the role of Si often overlooked in other studies. Therefore, these results emphasize on effect of C variations on affinity of inorganic species in natural systems
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Cennerazzo, Johanne. "Dynamique des HAP et des composés organiques issus de leur transformation dans les compartiments du sol et de la rhizosphère." Thesis, Université de Lorraine, 2017. http://www.theses.fr/2017LORR0042/document.
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Les hydrocarbures aromatiques polycycliques (HAP) sont des polluants persistants retrouvés majoritairement dans l’environnement, qui sont reconnus comme hautement toxiques pour les organismes vivants. Les nombreux travaux réalisés sur les mécanismes contrôlant l’évolution des HAP dans le sol et dans la rhizosphère ont mis en exergue le rôle majeur de la biodégradation par les microorganismes et de la sorption aux constituants du sol. Néanmoins, un manque d’informations persiste concernant le devenir de ces HAP dans le sol, et plus particulièrement leur localisation dans les compartiments du sol ainsi que la nature et le comportement des composés issus de leur dégradation. La thèse avait donc comme principaux objectifs : (a) la localisation des HAP et des produits dérivés dans les compartiments du sol (matières organiques, phases minérales, microorganismes et plante), et (b) la quantification et l’identification des composés organiques formant les résidus liés du sol. Pour cela, nous avons couplé deux approches:(i) le suivi d’un HAP modèle marqué, le 13C-phénanthrène (13C-PHE), dans un sol artificiellement contaminé planté et non planté pour notamment déterminer par IRMS et NanoSIMS la distribution du C issu du PHE dans les compartiments et pour identifier les composés dérivés du 13C-PHE par 13C-RMN et TD/pyGCMS. (ii) le suivi d’une contamination ancienne et récente en HAP dans un sol historiquement contaminé pour étudier l’influence des matières organiques et des phases minérales (séparées par un fractionnement densimétrique) dans la rétention des HAP. Plus de 40% du C issu du 13C-PHE est retenu dans le sol après 14 jours de croissance du ray-grass. L’enrichissement en 13C observé dans la plante est du même ordre que celui du sol (E13C ≈ 0.04 % at.) démontrant une incorporation homogène du 13C-PHE entre la plante et le sol. Cet enrichissement global dans la plante est confirmé par les images NanoSIMS réalisées sur les racines. Des hotspots en 13C ont également été observés dans la rhizosphère, et à partir de leur taille, leur forme et leur composition élémentaire en C, N et S ils ont été identifiés comme étant des bactéries, ce qui met en avant leur rôle dans la dynamique des HAP du sol. Dans le sol industriel, la majorité des HAP est retrouvée dans les MO non complexées aux minéraux. En revanche, les HAP fraîchement ajoutés se sont significativement liés aux associations organo-minérales composées de quartz, de feldspaths et de phyllosilicatesPolycyclic aromatic hydrocarbons (PAHs) are major persistent pollutants in the environment that are recognized as highly toxic to living organisms. Numerous studies were carried out on the fate of PAHs in soil and in plant rhizosphere and highlighted the major contribution of biodegradation processes and of the sorption to soil constituents. However, a lack of knowledge remains about the fate of PAHs in the soil and especially their location in soil compartments as well as the nature and the behavior of degradation products. The main objectives of the thesis were: (a) to localize PAHs and their derived products within soil compartments (organic matter, minerals, microorganisms and plant), and (b) to quantify and identify the organic compounds forming bound residues. For this purpose, we used two approaches: (i) the monitoring of a labeled PAH, the 13C-phenanthrene (13C-PHE), in a spiked soil planted or not to determine by IRMS and NanoSIMS the 13C-distribution into compartments and to identify derived compounds of 13C-PHE by 13C-RMN et TD/pyGCMS. (ii) the distribution and localization of aged and freshly spiked PAH contamination in a brownfield soil to study the impact of organic matter and minerals (using soil densimetric fractionation) in the PAH retention. More than 40% of C from 13C-PHE remained in the soil after 14 days of ryegrass growth. The 13C-enrichment in plant tissue was similarly to the soil enrichment (E13C ≈ 0.04 at.%) indicating uniform uptake of 13C-PHE between the soil and plant. NanoSIMS images acquired for roots confirmed this global enrichment in the plant. 13C-Hospots were also observed in the rhizosphere, and on the basis on their size, their shape and their elemental composition in C, N and S, they were identified as bacteria, which emphasize their contribution to the fate of PAHs in soil. In the industrial soil, most of the PAHs were found attached to the free OM. However, the freshly spiked PAHs in the soil were significantly associated with organo-mineral associations containing quartz, feldspars and phyllosilicates
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Lima, PatrÃcia de Oliveira. "substituiÃÃo parcial do leite por soro de queijo e ovo na diÃta lÃquida de bezerros leiteros." Universidade Federal do CearÃ, 2008. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=4763.
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nÃo hÃAvaliou-se neste trabalho a influÃncia das dietas sobre o desempenho ponderal, eficiÃncia alimentar, perfis dos metabÃlitos sÃricos relacionados ao status protÃico e energÃtico, desenvolvimento ruminal e rendimento de carcaÃa e dos cortes especiais de bezerros recebendo diferentes dietas lÃquidas durante a fase de aleitamento. Foram utilizados 24 bezerros mestiÃos de holandÃs x zebu, com um peso vivo mÃdio de 35,6 kg, distribuÃdos em um delineamento inteiramente casualizado com 04 (quatro) tratamentos e 06 (seis) repetiÃÃes: LI: Leite integral (Controle); LS: 50% Leite integral + 50% de Soro de queijo in natura; LSO: LS adicionado de 01 (um) ovo integral in natura; LSOB: LSO adicionado de biotina (05mg/animal/dia). A adaptaÃÃo dos animais Ãs dietas experimentais compreendeu os 10 (dez) dias que antecederam ao inÃcio dos respectivos tratamentos, quando os animais receberam o soro de queijo em substituiÃÃo parcial ao leite integral, de maneira gradativa (5% a cada dia atà o percentual de 50% da dieta). Os animais tiveram à sua disposiÃÃo concentrado farelado, feno de capim Tifton-85 (Cynodon sp.) e Ãgua ad libitum desde o nascimento atà o desmame, que ocorreu aos 60 dias de idade. Diariamente foram coletas sobras dos alimentos sÃlidos e semanalmente foram tomadas medidas corporais e de peso, amostras de sangue por venipunÃÃo jugular externa, no perÃodo da manhÃ, antes do fornecimento da dieta lÃquida e 02 (duas) horas apÃs a ingestÃo desta, em tubos do tipo vacutainer, sem adiÃÃo de anticoagulantes. Ao final do perÃodo experimental, aos 60 dias de idade, os bezerros foram abatidos e foram tomadas as medidas relativas ao rendimento de carcaÃa e retiradas amostras do tecido absortivo do rÃmen e intestino delgado para anÃlise histolÃgica. Todas as mÃdias encontradas para cada uma das variÃveis avaliadas neste estudo se mostraram dentro dos limites normais referenciados na literatura para bezerros lactentes e os valores nÃo diferiram estatisticamente entre os tratamentos. As dietas lÃquidas propostas nÃo provocaram nenhuma influÃncia sobre os parÃmetros analisados, logo se pode utilizar o soro em substituiÃÃo parcial ao leite integral, na proporÃÃo de 50%, sem adiÃÃo de ovo ou biotina, uma vez que os mesmos tambÃm nÃo acarretaram em alteraÃÃes das variÃveis estudadas.
alimentary efficiency; dressing; non lacteal protein; organs weight; ruminal development; special cuts
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Fernández, Carretero Francisco José. "Síntesis y caracterización de membranas híbridas organo-inorgánicas para su uso en pilas de combustible." Doctoral thesis, Universitat Politècnica de València, 2009. http://hdl.handle.net/10251/4325.
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El presente trabajo describe la síntesis y caracterización de una serie de membranas híbridas organo-inorgánicas de intercambio iónico para su uso en pilas de combustible.
Las membranas se prepararon por casting a partir de dispersiones de una serie de cargas inorgánicas fenil sulfonadas en disoluciones de Nafion, por una parte y poli estiren etilen/butilen estireno (SEBS) sulfonado. Como cargas se emplearon sílica gel, SBA-15 y sepiolita, todas ellas funcionalizadas con grupos de ácido fenilsulfónico. La sepiolita y la sílica gel se funcionalizaron anclando el grupo fenilo, al sólido.
Se preparó la SBA-15 mediante una reacción sol-gel. Se funcionalizó mediante dos técnicas. El primer método consistió en funcionalizar en la síntesis y el segundo en funcionalizar la SBA-15 ya preparada al igual que las otras cargas. Se llevó a cabo una sulfonación heterogénea empleando una atmósfera de SO3 como agente sulfonante.
El SEBS se sulfonó en disolución utilizando sulfato de acetilo como agente sulfonante. Posteriormente se preparó una disolución con el polímero sulfonado en THF/Etanol.
Para las membranas Nafion se empleó una disolución comercial al 5% en alcoholes de bajo peso molecular.
Se han caracterizado en primer lugar las cargas inorgánicas mediante medida de la capacidad de intercambio iónico y análisis elemental. De esta manera se seleccionaron las cargas a incorporar en las membranas. Con las cargas definitivas se ha hecho un ensayo de adsorción isoterma de N2 con el fin de obtener la superficie específica, un análisis termogravimétrico y se utilizó el SEM para determinar el tamaño de partícula.
Las membranas se han caracterizado mediante absorción de agua, capacidad de intercambio iónico, SEM, TGA, DSC, DMA, FTIR y medida de la conductividad protónica por espectroscopía de impedancia.
Del análisis microestructural se determinó que la sepiolita es la carga que proporciona mejores propiedades mecánicas a las membranas debido a su menor tamaño de partícula que pFernández Carretero, FJ. (2009). Síntesis y caracterización de membranas híbridas organo-inorgánicas para su uso en pilas de combustible [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/4325
Palancia
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Pereira, Jorge Manuel Almeida. "Análise da influência da variação do ritmo e da altura do step na manifestação das forças de reacção do solo e da actividade eléctrica muscular." Master's thesis, Instituições portuguesas -- UP-Universidade do Porto -- -Faculdade de Ciências do Desporto e de Educação Física, 2000. http://dited.bn.pt:80/29252.
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Msaky, John Joseph. "Adsorption et desorption du cuivre et du zinc dans les sols." Paris 6, 1987. http://www.theses.fr/1987PA066094.
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Conditions experimentales: effet du rapport masse de terre-volume de solution sur la charge electrique de surface solide. Quand il augmente les quantites adsorbees diminuent. La nature et la concentration des ligands mineraux et organiques ainsi que la forme ionique du milieu influencent l'adsorption du metal. L'adsorption du cu et du zn est differente selon le type du sol, le ph du systeme et la nature du cation competiteur. L'etude de la desorption montre que les metaux, une fois adsorbes, ne sont pas facilement desorbes
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Goudket, Hélène. "Etude de matériaux polymères, organiques et organo-minéraux, dopés par des colorants organiques : Application à la réalisation de sources laser intégrées." Phd thesis, Université Paris Sud - Paris XI, 2004. http://tel.archives-ouvertes.fr/tel-00006577.
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La première source laser solide à base de polymère dopé par des colorants organiques a été obtenue dans les années 1970, mais jusqu'à la fin du vingtième siècle, peu d'avancées ont été faites. La recherche de sources laser à colorants solides intégrées s'est beaucoup développée ces dernières années grâce à l'avènement de matériaux polymères organiques 'classiques' et hybrides organo-minéraux 'sol-gels' de meilleure qualité.Dans ces travaux, la caractérisation des matériaux est effectuée en termes de propriétés spectrales et de photostabilité des matériaux polymères dopés par des colorants organiques. L'influence sur les propriétés du matériau de l'environnement de la molécule de colorant et du viellissement est discutée.L'application de ces matériaux à la réalisation de sources laser intégrées est faite. Les performances des couples colorant-matrice en terme d'efficacité, de durée de vie en régime de train d'impulsions laser et d'accordabilité en longueur d'onde à l'aide de l'effet de rétroaction distribuée, sont mesurées.Enfin, la comparaison des mesures de caractérisation des matériaux en couches minces et des performances système en régime laser intégré, permet l'identification des paramètres agissant sur ces dernières. Notamment, la présence d'une forte absorption résiduelle dans la bande de fluorescence diminue l'efficacité laser des échantillons, et une bonne conduction thermique dans le matériau permet d'augmenter sa durée de vie en régime laser en limitant la thermodégradation des molécules de colorant. Des compromis sont, de plus, à faire pour la rigidité de la matrice, qui augmente le gain, mais aussi les pertes de propagation dans les matériaux.
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Tahiri, Reda. "Le cuivre comme facteur limitatif pour la pomme de terre et l'orge cultivés dans les sols podzoliques recevant de la tourbe ou des engrais organo-minéraux à base de tourbe." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/mq25743.pdf.
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Yvanes-Giuliani, Yliane. "Aluminium geochemistry in coastal lowland acid sulfate soils (CLASS) : speciation, reactivity and mobility." Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM4364.
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Ce projet de thèse vise à étudier les processus géochimiques de l'aluminium dans les sols acides à sulfates. Les résultats obtenus avec le dispositif de dialyse de Donnan montrent que l'aluminium dans la solution du sol est presque exclusivement (> 98%) présent sous forme de complexes de charge négative, vraisemblablement des organo-complexes d'aluminium. Les concentrations d'aluminium isotopiquement échangeables (valeurs-E) et les concentrations obtenues par extractions chimiques révèlent qu'une solution de 1 M KCl sous-estime systématiquement les valeurs E. Une méthode d'extraction séquentielle a révélé qu'une quantité importante de minéraux primaires (initialement présents dans les sols) a déjà été dissoute, comme en témoignent les concentrations élevées d'aluminium présentes en tant que minéraux secondaires d'aluminium. Ces études permettent de mieux comprendre la géochimie de l'aluminium dans les sols CLASS et de pouvoir intégrer ces connaissances dans la gestion des solsThe aim of this thesis was to further understanding on Al geochemistry in coastal lowland acid sulfate soils (CLASS). It was observed that Al was present almost solely (> 98%) as negatively charged complexes in CLASS pore-waters, presumably with natural organic matter. Isotopically exchangeable concentrations (E-values) of Al and extraction solutions used to estimate the exchangeable pool showed that 1 M KCl always underestimated isotopically exchangeable Al concentrations in these soils and that 0.2 M CuCl2 improved agreement between both methodologies but sometimes overestimated corresponding E values. A sequential extraction procedure showed that substantial amounts of Al have already been dissolved from primary aluminosilicates initially present in the soils and remain in the soils mostly as reactive secondary Al minerals. The outcomes of this thesis significantly further our understanding of Al geochemistry in CLASS environments and how this knowledge can be incorporated into land management practices
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Schmidt, Johann Christoph. "Motetto Auf Gott hoffe ich: Für Alto-Solo, Coro (Soprano, Alto, Tenore, Basso) und 2 Clarini in D, 2 Trombe in D, Tympani, 2 Flauti allemando, 2 Violini, 2 Viole Fagotto e Basson concertato, Violoncello, Organo, Tiorba: Partitur." Ries & Erler, 2020. https://slub.qucosa.de/id/qucosa%3A74090.
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Die „Denkmäler der Tonkunst in Dresden“ veröffentlichen in sieben Bänden Werke des Dresdner Hofkapellmeisters Johann Christoph Schmidt (1664-1728) aus Hohnstein/Sächsische Schweiz, einem von der Dresdner Musikgeschichtsschreibung vergessenen Komponisten.
Als erster Band erscheint unter der Editionsnummer 22 die Partitur des Motetto „Auf Gott hoffe ich“ für Alt-Solo, Chor und Orchester für 14 Stimmen. Die Ausgabe basiert auf einer Übertragung von Kirchenmusikdirektor Ulrich Meier, Auerbach/Vogtland, die im Rahmen einer Diplomarbeit an der Hochschule für Kirchenmusik Dresden 2001 entstand. Das Werk existiert nur in einer fehlerfreien Abschrift von Johann Sebastian Bach, die dieser vermutlich zwischen 1714 und 1716 offenbar für den eigenen Gebrauch in Weimar angefertigt hat.
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Souza, Epitácio José de. "Nanotecnologia aplicada a avaliação física de um latossolo de cerrado sob sistemas de sucessão de culturas em plantio direto." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/153065.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
A compactação do solo em sistemas plantio direto (SPD) tem comprometido a sua sustentabilidade. Para contornar esse problema, a escarificação mecânica e a manutenção da cobertura vegetal são sugeridas como práticas de manejo a fim de restabelecer as condições ideais de cultivo. Assim, o objetivo deste trabalho foi avaliar o efeito a curto prazo da escarificação e do uso de diferentes plantas de cobertura na manutenção do SPD envolvendo as culturas do arroz de “terras altas” e feijão de “inverno”). O trabalho foi desenvolvido em Selvíria, MS em 2014/15 e 2015/16, em um Latossolo Vermelho Distrófico de textura argilosa. Utilizou-se o delineamento em blocos casualizados disposto em parcelas subdivididas, tendo nas parcelas as condições da superfície do solo em SPD (com e sem escarificação mecânica) e nas subparcelas as plantas de cobertura (pousio, Cajanus cajan, Crotalaria juncea, Urochloa ruziziensis (Syn. Brachiaria ruziziensis) e Pennisetum glaucum), com quatro repetições, cultivadas com arroz e feijão. Foram avaliadas as características fitotécnicas das culturas e atributos físicos e químicos do solo em quatro camadas (0 a 0,05; 0,05 a 0,10; 0,10 a 0,20 e 0,20 a 0,40 m). Realizou-se a análise de variância e teste de Tukey a 5%de probabilidade para comparação de médias. Além disso, na camada de 0 a 0,05 m do solo também foram analisadas as características das nanopartículas e nanoestruturas do solo. Para essas análises incluiu-se o solo de Cerrado remanescente para comparação com os tratamentos estudados. As nanopartículas (< 200nm) foram extraídas e caracterizadas por microscopia eletrônica de transmissão (MET) e espectrometria de infravermelho (FTIR). Os resultados obtidos foram avaliados por meio da análise dos componentes principais e agrupamentos hierárquicos. As plantas de cobertura e a escarificação não influenciaram a produtividade do arroz de “terras altas “e do feijão de “inverno” após dois anos de cultivo. O estudo das nanopartículas e nanoestruturas mostrou-se sensível as alterações promovidas pelo uso da escarificação e das plantas de cobertura, apresentando assim potencial para ser uma ferramenta suplementar indicadora de qualidade do solo. O fósforo (P) foi o atributo químico mais influenciado pelas práticas de manejo pela sucessão com milheto (Pennisetum glaucum) sem escarificação nas duas camadas superficiais e nas demais camadas pela sucessão Urochloa ruziziensis (Syn. Brachiaria ruziziensis). Os atributos físicos e químicos do solo combinados com a caracterização de nanopartículas permitiram identificar que o milheto (Pennisetum glaucum) sem escarificação como mudanças estáveis para a manutenção do SPD. As características geométricas e químicas das nanopartículas auxiliam na identificação de mudanças causadas pelas práticas de manejos sobre os indicadores físicos e químicos da qualidade do solo. A contribuição das plantas de cobertura para a manutenção do SPD está ligada diretamente pela adição de matéria orgânica do solo (MOS). Deste modo contribuindo para as melhorias dos atributos químicos, físicos e influenciaram no comportamento das nanopartículas e nanoestrutura do solo.
Soil compaction in no-tillage systems (NTS) affects the sustainability of this management. To overcome the problem, mechanical chiseling and maintenance of the cover crop were suggested as management practices reestablishing ideal cultivation conditions. Thus, the objective of this study was to evaluate the short-term effect of mechanical chiseling and the use of different cover crops in the maintenance of NTS involving as crops "dryland” rice and "winter" common bean. The experiment was conducted in Selvíria, state of Mato Grosso do Sul, Brazil, during the 2014/15 and 2015/16 growing season, on a typical clayey dystrophic Red Latosol, with experiment was evaluated in a randomized block design in split plots, with the main plots as SPD soil surface conditions (with and without mechanical chiseling) and in the subplots as cover crop (fallow, Cajanus cajan, Crotalaria juncea, Urochloa ruziziensis and Pennisetum glaucum), with four replications, cultivated with “dryland” rice and "winter" common bean. The agronomic characteristics of the crops and soil physical and chemical attributes in four layers (0 a 0.05; 0.05 a 0.10; 0.10 a 0.20 e 0.20 a 0.40 m). The analysis of variance and Tukey's test were performed at a 5% probability for comparison of average. In addition, treatments of the 0 to 0.05 m layer of the soil were also compared to the natural closed area, through the conventional chemical and physical properties and characteristics of its nanoparticles and nanostructures. For these analyze the remaining Cerrado soil was included for comparison with the treatments studied. As nanoparticles (<200 nm) were extracted and characterized by transmission electron microscopy (TEM) and infrared spectrometry (FTIR). The results were evaluated by principal component analysis and hierarchical groupings. Cover crops and mechanical chiseling did not influence the yield of “dryland” rice and “winter” common bean after two years of cultivation. The study of the nanoparticles and nanostructures was sensitive to the changes promoted using mechanical chiseling and the cover crops, thus presenting potential to be a supplementary soil quality indicator tool. The phosphorus (P) was the chemical attribute most influenced by management practices by succession with pearl millet (Pennisetum glaucum) without mechanical chiseling in the two superficial layers and in the other layers by the succession Urochloa ruziziensis (Syn. Brachiaria ruziziensis).The physical and chemical attributes of the soil combined with the characterization of nanoparticles allowed to identify that pearl millet without mechanical chiseling as stable changes to the maintenance of NTS. The geometric and chemical characteristics of the nanoparticles assist in the identification of changes caused by the management practices on the physical and chemical indicators of soil quality. The contribution of cover crops to NTS maintenance is directly linked by the addition of soil organic matter (SOM). Thus, contributing to the improvements of the chemical and physical attributes of soil and influenced the behavior of the nanoparticles and the nanostructure of the soil.
Projeto CNPq 471052/2013-2
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Monsérié, Marie-France. "Processus d’agrégation dans un technosol : contribution des constituants anthropiques (oxydes de fer, laitiers, HAP, ETM) à la formation des associations organo-minérales." Thesis, Vandoeuvre-les-Nancy, INPL, 2009. http://www.theses.fr/2009INPL065N/document.
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Le nombre croissant de sites affectés par la présence de matériaux technogéniques rend nécessaire l’étude du (bio)fonctionnement des Technosols, qui s’y développent. Un matériau technogénique, issu d’une ancienne friche industrielle de cokerie et présentant une multipollution en HAP et en métaux a été disposé dans des parcelles lysimétriques pour une étude in situ (site d’Homécourt, www.gisfi.fr). La caractérisation morphologique et analytique à différentes échelles du matériau initial nous a permis d’y définir, en analogie avec la classification pédologique standard, la présence (1) de constituants primaires tels que quartz, oxydes de fer, gypse et matières organiques anthropiques, (2) de pseudo-sables technogéniques, soit des laitiers, (3) d’agrégats technogéniques stables à l’eau (12% de la masse du sol) néoformés grâce au rôle agrégeant de la fraction fine (0-20µm). Matières organiques anthropiques et ETM (Zn Pb, Ba) contribuent à la formation de ces associations organo-minérales. Ce matériau d’origine anthropique, tout spécifique qu’il soit, contient des constituants minéraux et organiques capables de s’associer et donc susceptibles, au même titre que ceux des sols naturels, d’évoluer sous l’effet des facteurs pédogénétiques et former ainsi un technosol. Si les deux années d’expérimentation n’ont pas été suffisantes pour mettre en évidence une modification de la stabilité structurale de ce jeune Technosol, les résultats y soulignent l’impact des plantes colonisatrices et de la microflore rhizosphérique sur la formation d’associations organo-minérales. L’activité biologique est donc un facteur clef d’évolution de ces solsThe increasing number of sites affected by the presence of technogenic materials makes necessary the study of (bio)functioning of Technosols, developed there. A technogenic material, resulting from an old industrial coking plant and presenting a multipollution of HAP and metals was laid out in lysimetric pieces for an “in situ” study (site of Homécourt, www.gisfi.fr). The morphological and analytical characterization at different scales of initial material enabled us to define, in analogy with standard pedological classification, the presence (1) of primary constituents such as quartz, iron oxides, gypsum and anthropic organic matters, (2) of technogenic pseudo-sands, like slags, (3) of water-stable technogenic aggregates (12% of the soil mass), generated through the aggregating role of the fine fraction (0-20 µm). Anthropic organic matter and ETM (Zn Pb, Ba) contribute to the formation of these organo-mineral associations. This material of anthropic origin, while it is specific, contains mineral and organic components able to aggregate and is thus, as well as natural soils, able to develop under the influence of pedogenic factors to form a Technosol. If the two years of experimentation were not sufficient to highlight a modification of the structural stability of this young Technosol, the results underline there the impact of the colonizing plants and the rhizospheric microflora on the formation of organo-mineral associations. The biological activity is thus a key factor of evolution of these soils
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Thouin, Hugues. "Transfert de polluants inorganiques dans un technosol de brûlage d’armes organo-arséniées soumis à un apport de matière organique et à des cycles de saturation/désaturation : expérimentation en mésocosme." Thesis, Orléans, 2016. http://www.theses.fr/2016ORLE2069/document.
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La destruction par brûlage de munitions chimiques de la Première Guerre Mondiale a provoqué une contamination importante de la partie supérieure du sol du site de la Place-à-Gaz par l’arsenic, le zinc, le cuivre et le plomb. Le traitement thermique a eu pour effet de minéraliser l’As des agents de guerre organoarséniés, et de former un assemblage minéral inattendu composé d’arséniates de Zn, Cu et Fe, et d’une phase amorphe riche en Fe, As, Zn, Cu et Pb. Ce matériel amorphe est la principale phase porteuse de l’As et des métaux dans la zone la plus polluée. Le site est sujet à des changements environnementaux pouvant affecter la stabilité des contaminants inorganiques. Afin d’évaluer l’impact d’épisodes de saturation en eau et de l’apport de matière organique sur les cycles biogéochimiques des métaux et de l’As, une étude en mésocosme a été menée. Les résultats montrent que la phase amorphe est instable en conditions saturées, et libère des contaminants dans l’eau interstitielle du sol. Comme sur le site, les contaminants les plus mobiles sont le Zn et l’As. L’addition de matière organique a induit une immobilisation de l’As, par piégeage de l’As V sur les oxyhydroxydes de fer, dans la partie saturée du sol. La caractérisation du compartiment microbien a été effectuée via des dénombrements, une analyse de la diversité bactérienne et des tests d’activités d’oxydation de l’As III et de respiration et. Les résultats montrent que les microorganismes ont contribué activement au métabolisme du C et de l’As. L’apport de matière organique a promu la croissance des microorganismes As III-oxydants et As Vréducteurs et modifié la structure des communautés bactériennes. Cependant, un effet négatif de la matière organique sur la vitesse d’oxydation de l’As III a été observé, entrainant une augmentation des concentrations d’As III en solution. Cette étude en mésocosme a montré que le dépôt naturel de litière organique a des conséquences antagonistes sur le transfert des contaminants inorganiques. Ces résultats fournissent de plus amples informations sur l’impact environnemental de la Grande Guerre et, de façon plus générale, sur les processus biogéochimiques contrôlant le comportement des métaux/métalloïdes sur les sites polluésThe thermal destruction of chemical munitions from World War I, on the site of “Place-à-Gaz”, induced intense local top soil contamination by arsenic and heavy metals. The heat treatment mineralized As from organoarsenic warfare agents, resulting in a singular mineral assemblage, composed of Zn, Cu and Fe arsenates and of an amorphous phase rich in Fe, As, Zn, Cu and Pb. The amorphous material was the principal carrier of As and metals in the central part of the site. The site undergoes environmental changes which may alter the stability of inorganic contaminants. To assess the impact of water saturation episodes and input of bioavailable organic matter on the biogeochemical cycles of metal(loid)s, a mesocosm study was conducted. Results showed that amorphous phase was instable in saturated conditions, and released contaminants in soil water. As previously observed on site, the most mobile contaminants were Zn and As. The addition of organic matter induced the immobilization of As by trapping of As V onto hydrous ferric oxides in the saturated soil. Microbial characterizations including counting, bacterial community structure, respiration, and determination of As IIIoxidizing activities were performed. Results showed that microorganisms actively contribute to the metabolisms of C and As.The addition of organic matter induced the increase of As III-oxidizing and As V-reducing microorganisms concentrations and modified the bacterial diversity. However, a negative effect of organic matter on the activity of As III oxidation was observed resulting in higher As III concentration in soil water. This study showed that the natural deposition of forest organic litter on the site, induced antagonist effects on the transfer of inorganic pollutants did not immobilize all the Zn and As and even contributed to As III transport to the surrounding environment. These results provide more information about the environmental impact of the Great War and more generally about the processes driving the behavior of metals/metalloids on polluted sites
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Oliveira, Adauê Siegert de. "Efeito de cobertura antiaderente no acúmulo de biofilme em dispositivos ortodônticos." Universidade Federal de Pelotas, 2012. http://repositorio.ufpel.edu.br/handle/ri/2218.
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Previous issue date: 2012-06-01The use of orthodontic devices has been associated with an increase in dental biofilm retention. In this study, the effect of hydrophobic coatings, based on (fluorinated or not) organo-silanes, on the reduction of the contact angle and early biofilm retention in orthodontic devices was tested. Two different types of hydrophobic were tested: hydrophobic solution 1 (SH1), obtained by dilution of 2.5% of hexadecyl-triethoxy-silane in ethanol, and hydrophobic solution 2 (SH2), composed of 2.5% of perfluorodecyl-triethoxy-silane diluted in dimethyl sulfoxide. The solutions were applied in ceramic and stainless steel substrates and, via sol-gel process and crosslinking, siloxane networks were formed on the surface of the devices. The effect of the coatings was evaluated in two stages. In the first stage, aiming the characterization of the surface, the water contact angle was analyzed. Stainless steel and polycrystalline alumina plates were prepared, previously applying or not alumina sandblasting as surface treatment. A significant increase in contact angle was observed with the application of both hydrophobic solutions in both substrates, with the sandblasting allowing formation of super-hydrophobic surface in the ceramic substrate (contact angle up to 155o), while hydrophobic surfaces were obtained in the steel substrate (contact angle up to 123o). In the second phase, the effect of the hydrophobic coating on the biofilm retention in orthodontic brackets was evaluated using a microscosm model. Orthodontic brackets were previously prepared according to the surface treatments that showed the best results in the phase 1 (SH1 for steel, SH2 for ceramic). The effect of the coatings on the biofilm formation was evaluated in periods of 12h and 24h (controls: uncoated substrates and sandblasted substrates). The results showed that the hydrophobic coatings did not result in significant effect in biofilm retention for the time 12h, whereas all coating treatments significantly reduced the biofilm retention in the metal and ceramic brackets compared with the control groups. A significant exponential reduction in biofilm retention at 24h was associated with the increase in contact angle. It can be concluded that application of (super)-hydrophobic crosslinked coatings via sol-gel process on the surface of orthodontic metal and ceramic brackets reduced the surface wetting of the surfaces in contact with water and had a significant effect on the retention of dental biofilm after 24h
O uso de dispositivos ortodônticos tem sido associado ao aumento da retenção de biofilme dentário. Neste estudo, foi testado o efeito de coberturas hidrófobas,baseadas em organo-silanos (flourados ou não), no aumento do ângulo de contato e redução de acúmulo de biofilme inicial em dispositivos ortodônticos. Dois tipos diferentes de soluções hidrófobas foram testadas: solução hidrófoba 1 (SH1), obtida pela diluição de 2,5% de hexadecil-trietóxi-silano em etanol, e solução hidrófoba 2 (SH2), composta por 2,5% de perfluorodecil-trietóxi-silano diluído em dimetilsulfóxido. As soluções foram aplicadas em substratos cerâmico e de aço inox e, via processo sol-gel e reticulação, foram formadas redes siloxanas na superfície dos dispositivos. O efeito das coberturas foi avaliado em duas etapas. Na primeira etapa, buscando a caracterização da superfície, foi analisado o ângulo de contato com água. Placas de aço inox e alumina policristalina foram preparadas, aplicando ou não jateamento prévio das superfícies com partículas de alumina. Foi observado aumento significativo do ângulo de contato com a aplicação das duas soluções hidrófobas em ambos substratos, sendo que o jateamento do substrato propiciou a formação de superfície superhidrófoba no substrato cerâmico (ângulo de contato de até 155o), enquanto superfícies hidrófobas foram obtidas no substrato aço (ângulo de contato até 123o). Na segunda fase do trabalho, avaliou-se o efeito da cobertura no acúmulo de biofilme em braquetes ortodônticos, através de modelo de microcosmos. Braquetes ortodônticos foram previamente preparados conforme os tratamentos de superfície que apresentaram melhores resultados na primeira fase (SH1 para aço, SH2 para cerâmica). Foi avaliado o efeito da cobertura na formação de biofilme em períodos de 12h e 24h (controles: substratos não-recobertos e substratos jateados). Os resultados mostraram que as coberturas hidrófobas não resultaram em efeito significativo no acúmulo de biofilme no tempo 12h, entretanto todos os tratamentos de cobertura reduziram de forma significativa o acúmulo de biofilme sobre os braquetes metálicos e cerâmicos comparados aos grupos controle no período 24h. Foi observada relação de redução exponencial significativa entre ângulo de contato e acúmulo de biofilme para o tempo 24h. Dessa forma, conclui-se que a aplicação de coberturas (super)-hidrófobas reticuladas via processo sol-gel na superfície de dispositivos ortodônticos metálicos e cerâmicos reduziu o molhamento das superfícies em contato com a água e teve efeito significativo na retenção de biofilme bucal sobre esses dispositivos após 24h
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Ober, Reinhard Kubík Ladislav. "Requiem for solo soprano, mixed choir, organ and orchestra." Diss., 2003. http://etd.lib.fsu.edu/theses//available/etd-06192003-115657/.
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Treatise (D.M.A.) -- Florida State University, 2003.Advisor: Ladislav Kubík, Florida State University, School of Music. Title and description from treatise home page (viewed 11-20-03) Latin and German words, printed as text following score. Document formatted into pages; contains 99 pages. Includes biographical sketch.
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Chu, Sun Young Park. "A TRANSCRIPTION FOR SOLO ORGAN: SYMPHONY ON A HYMN TUNE, Op. 53, BY VIRGIL THOMSON." Diss., 2012. http://hdl.handle.net/10392/3948.
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The primary purpose of this study is to provide a transcription for solo organ of Virgil Thomson's Symphony on a Hymn Tune.
The study is two-fold: first, to explore the early life and career of Thomson with a focused view on how his organ and composition studies influenced the composition of Symphony on a Hymn Tune; and second, to present an original transcription of the work in a performing score for solo organ. In addition to the final score, the study provides an analytical overview along with a description of methodology used to create the transcription, and a discussion of issues encountered by the performing organist in playing the transcription. Discussions encompass organ registration, tempi, manual suggestions, articulation, phrase markings, and dynamic expression. Musical examples both from the author's transcription and Virgil Thomson's organ works are included as necessary.
Two appendices are included. Appendix 1 presents the specifications for the Aeolian Skinner organ of The Southern Baptist Theological Seminary in Louisville, Kentucky, on which the transcription was originally performed. Appendix 2 itemizes the registration lists used for the original performance of the organ transcription.
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Knapp, Brady Keith. "Charles Villiers Stanford's sacred repertoire for solo voice, choir, and organ: An analysis of "Six Bible Songs and Hymns", Opus 113." Thesis, 2003. http://hdl.handle.net/1911/18546.
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This paper explores aspects of Sir Charles Villiers Stanford's life and music, with an emphasis on his sacred works for solo voice, choir, and organ, and an analysis of the Six Bible Songs and Hymns or Chorales (to follow the Bible songs), Opus 113 for baritone solo, SATB choir, and organ. The second chapter is a brief biography of significant events and major accomplishments in Stanford's life. The third chapter provides an overview of his compositional style, with an emphasis on the defining characteristics of his vocal music. The fourth chapter focuses on Stanford's sacred vocal music, particularly his contribution to the liturgy and service of the Anglican Church. In chapter four, a discussion of Stanford's works for solo voice, choir, and organ will include: (1) the Evening Service in G, Opus 81, for soprano and baritone soloists, choir, and organ, (2) the virtually unknown cantata Awake my heart, Opus 16, for baritone, choir, and organ, and (3) an introduction to Stanford's Six Bible Songs and Hymns, Opus 113, discussing the genesis of the work, and its unique position within the repertoire of the Anglican Church. The fifth chapter is a detailed analysis of the Six Bible Songs and Hymns that investigates musical aspects of Stanford's score, but also the history of the cycle's texts and hymn tunes, as well as performance and other extra musical considerations. A concluding sixth chapter will discuss the publication history and performance practices of the Six Bible Songs and Hymns , Opus 113.
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Jang, Sinhae. "Three Transcriptios for Solo Organ: Sonata da chiesa Op. 3, No. 3, by Arcangelo Corelli, Overture to La forza del destino by Giuseppe Verdi, Festive Overture Op. 96, by Dmitry Shostakovich." Diss., 2011. http://hdl.handle.net/10392/3733.
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The purpose of this dissertation was to provide three transcriptions for solo organ along with a performance guide and commentaries for each of them. The original orchestral pieces, Sonata da chiesa Op. 3, No. 3 by Corelli, Overture to La forza del destino by Verdi, and Festive Overture Op. 96 by Shostakovich, were selected according to technical accessibility as well as artistic possibilities for the new performing medium.
Each chapter, devoted to one transcription, is divided into three sections: (1) an introduction, containing a brief overview of the piece and the process of transcription with musical examples; (2) a performer's guide, including basic analysis, registration and manual suggestions, and tempo suggestions for each movement or section; and (3) the organ transcription score, providing suggested registration and manual changes, tempo and dynamics, and an indication of the composer's original orchestration and instrumentation.
Four appendices are given. Appendix 1 presents the stop list of the Gheens Memorial Organ at Broadway Baptist Church in Louisville, Kentucky, on which all three transcriptions have been performed. Appendices 2, 3, and 4 are the registration lists used for the performance of these organ transcriptions.
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Akpakouma, Ayitre. "Qualités chimiques et biochimiques des solides de lisier de porc pour une formulation optimale organo-minéraux /." 2009. http://www.theses.ulaval.ca/2009/26020/26020.pdf.
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