Дисертації з теми "Synthetic Transformation"
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Maloney, Sarah Elizabeth. "Microbial transformation of synthetic pyrethroid insecticides." Thesis, University of Greenwich, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292367.
Повний текст джерелаWatanabe, Mitsuru. "Synthetic Transformation of Heteroatom Compounds Using Electroauxiliaries." 京都大学 (Kyoto University), 2002. http://hdl.handle.net/2433/149432.
Повний текст джерелаSinger, Jared Wesley. "Formation and Transformation of Amorphous Calcium-Magnesium Carbonates in Synthetic Seawater." Thesis, Alfred University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10184519.
Повний текст джерелаThe aqueous chemistry, precipitation, and crystallization of metal-carbonates comprises a vast field of research that underlies the urgency of CO2 sequestration, ocean-acidification, and biomineralization. The results of recent experimental and computational studies suggest that amorphous calcium and magnesium carbonates are precipitated from supersaturated aqueous conditions by non-classical aggregation of ion pairs, dimers, dynamically-ordered-liquid-likeoxypolymers (DOLLOPS), and prenucleation clusters (PNCs). We present the first high field (20 T) 43Ca and 25Mg NMR studies of amorphous calcium-magnesium carbonates (ACC, ACMC, AMC) materials. Direct integration of computational techniques with experimental NMR provides a novel step forward toward multi-scale integration of computational and experimental techniques. Supporting information is derived from X-ray diffraction (XRD), thermogravimetric/differential thermal analysis (TGA-DTA), and scanning electron microscopy—energy dispersive spectroscopy (SEM-EDS) and provides important comparison to the bulk structures and composition.
High field NMR of amorphous carbonates demonstrates that amorphous carbonates contain various types of local disorder, but does not corroborate the theory of polyamorphism nor nano scale phase separations postulated by other workers. Carbon (13C) NMR of 13Cenriched materials indicates a degree of Ca-Mg solid solution in ACMCs, as ACMC 13C resonances cannot be adequately reconstructed from the pure ACC and AMC 13C resonances. However, with increasing Mg-content (and therefore H2O content) 13C NMR resonances are strongly influenced by water-carbonate hydrogen bonding, shifting to lower resonance frequency and broadening. The 13C-NMR are well-fit with single Gaussian distributions, suggesting that two-phase models of ACMCs are not required to explain our 13C NMR observations. Protoncarbon cross polarization indicates that there is a H population proximal to carbonate groups for all amorphous phases. 43Ca NMR yields line shapes that span the resonance frequency range of all known crystalline calcium carbonate polymorphs and is well fit with a single Gaussian distributions. 43Ca NMR does not support a theory of polyamorphisms, but rather suggests an unstructured, continuous distribution of local environments that is unlike any specific crystalline phase. The mean 43Ca chemical shifts vary 0.77 ppm from compositions x = 0 to 0.5 [x = Mg/(Mg + Ca)], demonstrating that Mg2+ has very little influence on the molecular-scale 43Ca environment in ACMCs. Through integration of quantum mechanical calculations, classical MD, and NMR we ascertain a maximum mean Ca-O bond distance in our ACCs/ACMCs of 2.45 ± 1 Å that is independent of composition. Unlike the indistinguishable local calcium environments, 25Mg NMR of amorphous material gives evidence for several distinct overlapping quadrupolar line shapes. These sites do not generate NMR resonances that are perfect matches for known crystalline polymorphs of magnesian carbonates and extend toward lower resonance frequencies far beyond the range of known equilibrium analogs. By comparison to the range of reference phases, the low frequency singularities of ACMC-AMC resonances are consistent with some population of Mg-O bond distances greater than 2.10 Å and/or some fraction of sites with high coordination numbers (up to 8). The local Mg environment of a protodolomite crystallization [x = Mg/(Mg + Ca) = 0.6] exhibits 25Mg NMR parameters most similar to the asymmetric Mg2+ coordination environment of lansfordite [Mg(CO3)2(H2O)4]2– or huntite. Although H-C cross polarization indicates no H-bonding with carbonate the XRD gives not longrange indications of huntite. The large effective radius of strongly hydrated Mg in the protodolomite likely provides a driving force for cation ordering in dolomite.
Calzada, Defez Àngel. "Conveying expressivity and vocal effort transformation in synthetic speech with Harmonic plus Noise Models." Doctoral thesis, Universitat Ramon Llull, 2016. http://hdl.handle.net/10803/360587.
Повний текст джерелаEsta tesis se llevó a cabo en el Grup en Tecnologies Mèdia de la Escuela de Ingeniería y Arquitectura la Salle. El grupo lleva una larga trayectoria dentro del campo de la síntesis de voz y cuenta con su propio sistema de síntesis por concatenación de unidades (US-TTS). El sistema permite sintetizar múltiples estilos expresivos mediante el uso de corpus específicos para cada estilo expresivo. De este modo, para realizar una síntesis agresiva, el sistema usa el corpus de este estilo, y para un estilo sensual, usa otro corpus específico para ese estilo. La presente tesis aborda el problema con un enfoque distinto proponiendo cambios en el esquema del sistema con el fin de mejorar la flexibilidad para sintetizar múltiples estilos expresivos a partir de un único corpus de estilo de habla neutro. El planteamiento seguido en esta tesis esta basado en el uso de técnicas de procesamiento de señales (DSP) para llevar a cabo modificaciones del señal de voz para que este exprese el estilo de habla deseado. Para llevar acabo las modificaciones de la señal de voz se han usado los modelos harmónico más ruido (HNM) por su flexibilidad para efectuar modificaciones de señales. La cualidad de la voz (VoQ) juega un papel importante en diferentes estilos expresivos. Por ello se exploró la síntesis expresiva basada en modificaciones de parámetros de bajo nivel de la VoQ. Durante este estudio se detectaron diferentes problemas que dieron pié a los objetivos planteados en esta tesis, entre ellos el encontrar un único parámetro con fuerte influencia en la expresividad. El parámetro seleccionado fue el esfuerzo vocal (VE) por su importante papel a la hora de expresar diferentes emociones. Las primeras pruebas se realizaron con el fin de transferir el VE entre dos realizaciones con diferente grado de VE de la misma palabra usando una metodología basada en un proceso filtrado de pre-émfasis adaptativo con coeficientes de predicción lineales (APLP). Esta primera aproximación logró transferir el nivel de VE entre dos realizaciones de la misma palabra, sin embargo el proceso presentaba limitaciones para generar niveles de esfuerzo vocal intermedios. A fin de mejorar la flexibilidad y el control del sistema para expresar diferentes niveles de VE, se planteó un nuevo modelo de VE basado en polinomios lineales. Este modelo permitió transferir el VE entre dos palabras diferentes e incluso generar nuevos niveles no presentes en el corpus usado para la síntesis. Esta flexibilidad está alineada con el objetivo general de esta tesis de permitir a un sistema US-TTS expresar múltiples estilos de habla expresivos a partir de un único corpus de estilo neutro. Además, la metodología propuesta incorpora un parámetro que permite de forma sencilla controlar el nivel de VE expresado en la voz sintetizada. Esto abre la posibilidad de controlar fácilmente el proceso de síntesis tal y como se hizo en el proyecto CreaVeu usando interfaces simples e intuitivas, también realizado dentro del grupo GTM. Esta memoria concluye con una revisión del trabajo realizado en esta tesis y con una propuesta de modificación de un esquema de US-TTS para expresar diferentes niveles de VE a partir de un único corpus neutro.
This thesis was conducted in the Grup en Tecnologies M`edia (GTM) from Escola d’Enginyeria i Arquitectura la Salle. The group has a long trajectory in the speech synthesis field and has developed their own Unit-Selection Text-To-Speech (US-TTS) which is able to convey multiple expressive styles using multiple expressive corpora, one for each expressive style. Thus, in order to convey aggressive speech, the US-TTS uses an aggressive corpus, whereas for a sensual speech style, the system uses a sensual corpus. Unlike that approach, this dissertation aims to present a new schema for enhancing the flexibility of the US-TTS system for performing multiple expressive styles using a single neutral corpus. The approach followed in this dissertation is based on applying Digital Signal Processing (DSP) techniques for carrying out speech modifications in order to synthesize the desired expressive style. For conducting the speech modifications the Harmonics plus Noise Model (HNM) was chosen for its flexibility in conducting signal modifications. Voice Quality (VoQ) has been proven to play an important role in different expressive styles. Thus, low-level VoQ acoustic parameters were explored for conveying multiple emotions. This raised several problems setting new objectives for the rest of the thesis, among them finding a single parameter with strong impact on the expressive style conveyed. Vocal Effort (VE) was selected for conducting expressive speech style modifications due to its salient role in expressive speech. The first approach working with VE was based on transferring VE between two parallel utterances based on the Adaptive Pre-emphasis Linear Prediction (APLP) technique. This approach allowed transferring VE but the model presented certain restrictions regarding its flexibility for generating new intermediate VE levels. Aiming to improve the flexibility and control of the conveyed VE, a new approach using polynomial model for modelling VE was presented. This model not only allowed transferring VE levels between two different utterances, but also allowed to generate other VE levels than those present in the speech corpus. This is aligned with the general goal of this thesis, allowing US-TTS systems to convey multiple expressive styles with a single neutral corpus. Moreover, the proposed methodology introduces a parameter for controlling the degree of VE in the synthesized speech signal. This opens new possibilities for controlling the synthesis process such as the one in the CreaVeu project using a simple and intuitive graphical interfaces, also conducted in the GTM group. The dissertation concludes with a review of the conducted work and a proposal for schema modifications within a US-TTS system for introducing the VE modification blocks designed in this dissertation.
Rideau, Fabien. "Clonage et modification du génome de Mycoplasma hominis dans la levure Saccharomyces cerevisiae." Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0227/document.
Повний текст джерелаMycoplasma hominis is an opportunistic human pathogen responsible for genital and neonatal infections. Genetically modifying this bacterium is necessary to understand the virulence and infection mechanisms of this pathogen. There is currently no effective molecular tool to engineer the genome of this bacterium, limiting research on its pathogenicity and its peculiar metabolism based on arginine.New technologies have recently emerged in the field of Synthetic Biology (BS), offering new perspectives for the study of mycoplasmas by allowing large scale genome modifications and the production of mutant strains. Work at the J. Craig Venter Institute (JCVI, USA) has shown that the genome of related mycoplasmas can be cloned and manipulated in yeast before being transplanted into a recipient cell. The yeast serves as a temporary host to modify the genome of the bacterium. This innovative approach opens many perspectives in the development of functional genomics in mycoplasmas for which there are few effective genetic tools. The goal of this thesis was to adapt a number of BS tools to M. hominis for the first time, in order to create mutants deficient for a given function. To achieve this goal, the genome of the M. hominis type strain PG21 (665 kb) was cloned into the yeast Saccharomyces cerevisiae by Transformation-Associated Recombination cloning (TAR-cloning). Two yeast clones (B3-2 and B3-4) possessing the complete genome of M. hominis were validated by simplex PCR, multiplex PCR and Pulsed Field Gel Electrophoresis (PFGE) analyses. These yeast clones were then propagated in a selective medium for 180 generations (30 passages) to evaluate the stability of the bacterial genome in its host. This experiment showed that (i) the size of the genome of M. hominis did not change during the first passages, it decreased progressively from the tenth passage (≈60 generations), and (ii) the enriched genome areas in repeated sequence were preferentially lost. Thus, the genome of M. hominis was modified in the B3-4 clone at early passages using the Clustered Regularly Interspaced Short Palindromic Repeats/Cas9 (CRISPR/Cas9) technology. Yeast clones with a complete M. hominis PG21 genome with a deleted vaa gene, encoding a major adhesion protein, were produced using this approach. The final step of this approach was to transplant the modified genome into a recipient cell of M. hominis or Mycoplasma arthritidis, the species phylogenetically closest to M. hominis. As no M. hominis transformation protocol was available at the beginning of our work, this step constituted a major obstacle in the implementation of BS tools in this species. This barrier has been partially lifted since a method of transformation of M. hominis based on polyethylene glycol (PEG) and involving the plasposon pMT85 (plasmid carrying a transposon conferring resistance to tetracycline) has been developed in the laboratory. This transformation technique, developed for the reference strain M. hominis M132 (745 kb) still remains not very efficient; it is nevertheless reproducible and allowed to obtain M. hominis mutants of interest. The Mhom132_2390 gene, encoding the precursor of the P75 protein, a putative adhesin of M. hominis, was effectively mutated in transformant No. 28-2. Complete genome sequencing of other transformants revealed the insertion of multiple copies of the transposon and the presence of duplication and inversion of large DNA fragments within at least two M. hominis genomes.In conclusion, this data has opened the way for the development and transposition of existing genetic modification approaches to M. hominis, previously considered as a genetically intractable bacterium
Ihemere, Uzoma Enyinnaya. "Somatic embryogenesis and transformation of cassava for enhanced starch production." Connect to this title online, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1070549008.
Повний текст джерелаTitle from first page of PDF file. Document formatted into pages; contains xxiii, 184 p.; also includes graphics (some color). Includes bibliographical references (p. 166-184).
Zhang, Shi-Yuan. "Homochiral Metal-Organic Materials: Design, Synthetic and Enantioseletive Separation." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5163.
Повний текст джерелаHerrera, Rodriguez Leopoldo. "Genetic engineering tools for transforming the nucleus and chloroplast of microalgae." Thesis, University of Manchester, 2017. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.727988.
Повний текст джерелаVella, Katie E. "Microbial Effects on the Production and Transformation of Surfactants Within the Microlayer and Subsurface Waters in Application to Remote Sensing Techniques." NSUWorks, 2012. http://nsuworks.nova.edu/occ_stuetd/34.
Повний текст джерелаGupta, Rahul. "PCR-based Synthesis of Codon Optimized cry2Aa Gene for Production of Shoot and Fruit Borer (Leucinodes orbonalis) Resistant Eggplant (Solanum melongena L.) Cultivars." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/36369.
Повний текст джерелаMaster of Science
Gao, Y. (Yun). "Synthesis and synthetic transformations of allylic alcohols, epoxy alcohols, and 1,2-cyclic sulfates." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/14588.
Повний текст джерелаKain, Alexander Blouke. "High resolution voice transformation /." Full text open access at:, 2001. http://content.ohsu.edu/u?/etd,189.
Повний текст джерелаPreclík, Milan. "Řiditelné kmitočtové filtry s moderními aktivními prvky." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218298.
Повний текст джерелаKonowicz, Paul A. "Some synthetic transformations on sucrose." Thesis, University of East Anglia, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280931.
Повний текст джерелаTorigoe, Takeru. "New Molecular Transformations Based on Iridium-Catalyzed Activation of C(sp3)-H Bonds." 京都大学 (Kyoto University), 2017. http://hdl.handle.net/2433/225636.
Повний текст джерелаGrainger, Rachel. "Decarboxylative transformations : synthetic applications and mechanistic investigations." Thesis, Queen Mary, University of London, 2015. http://qmro.qmul.ac.uk/xmlui/handle/123456789/8187.
Повний текст джерелаPisár, Peter. "Metody návrhu aktivních kmitočtových filtrů na základě pasivního RLC prototypu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218107.
Повний текст джерелаCalderon-Higginson, C. "Synthesis and transformations of meroterpenoids." Thesis, University of Nottingham, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381098.
Повний текст джерелаSchmidt, Iver. "Design of nanoporous materials for light alkane transformation." Thesis, University of Liverpool, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369114.
Повний текст джерелаNelp, Micah, and Micah Nelp. "Biological Synthesis and Transformation of Nitriles." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/621560.
Повний текст джерелаSheldon, Chris G. "Development of new synthetic transformations using diazo compounds." Thesis, University of Bristol, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.396672.
Повний текст джерелаPriddle, Jacob William. "Efficient and flexible Bayesian synthetic likelihood via transformations." Thesis, Queensland University of Technology, 2020. https://eprints.qut.edu.au/205902/1/Jacob_Priddle_Thesis.pdf.
Повний текст джерелаAdmans, Gary David. "Asymmetric transformations catalysed by lipase enzymes." Thesis, University of Exeter, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240288.
Повний текст джерелаSebelius, Sara. "Palladium-Catalyzed Synthesis and Transformation of Organoboranes." Doctoral thesis, Stockholm : Department of Organic Chemistry, Stockholm University, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1198.
Повний текст джерелаArdaillon, Luc. "Synthesis and expressive transformation of singing voice." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066511/document.
Повний текст джерелаThis thesis aimed at conducting research on the synthesis and expressive transformations of the singing voice, towards the development of a high-quality synthesizer that can generate a natural and expressive singing voice automatically from a given score and lyrics. Mainly 3 research directions can be identified: the methods for modelling the voice signal to automatically generate an intelligible and natural-sounding voice according to the given lyrics; the control of the synthesis to render an adequate interpretation of a given score while conveying some expressivity related to a specific singing style; the transformation of the voice signal to improve its naturalness and add expressivity by varying the timbre adequately according to the pitch, intensity and voice quality. This thesis provides some contributions in each of those 3 directions. First, a fully-functional synthesis system has been developed, based on diphones concatenations. The modular architecture of this system allows to integrate and compare different signal modeling approaches. Then, the question of the control is addressed, encompassing the automatic generation of the f0, intensity, and phonemes durations. The modeling of specific singing styles has also been addressed by learning the expressive variations of the modeled control parameters on commercial recordings of famous French singers. Finally, some investigations on expressive timbre transformations have been conducted, for a future integration into our synthesizer. This mainly concerns methods related to intensity transformation, considering the effects of both the glottal source and vocal tract, and the modeling of vocal roughness
IMRAN, MUHAMMAD. "Synthesis and Post-synthesis Transformations of Colloidal Semiconductor Nanocrystals." Doctoral thesis, Università degli studi di Genova, 2018. http://hdl.handle.net/11567/945513.
Повний текст джерелаKendall, Jackie D. "Synthesis and enantioselective transformations of sulfoxides." Thesis, University of Nottingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311838.
Повний текст джерелаRoss, Valerie. "Synthesis and transformations of substituted furans." Thesis, University of Liverpool, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.426123.
Повний текст джерелаMuzanila, Charles Nobert. "Heterocyclic transformations involving #DELTA#'2-oxazolines and 1,2-benzisoxazoles." Thesis, University of Salford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327958.
Повний текст джерелаCook, Andrew. "Using proof in transformation synthesis for automatic parallelisation." Thesis, Heriot-Watt University, 2001. http://hdl.handle.net/10399/462.
Повний текст джерелаSalafia, Vittoria. "Synthesis and transformation of difluorinated Diels-Alder cycloadducts." Thesis, University of Leicester, 2004. http://hdl.handle.net/2381/30089.
Повний текст джерелаFang, Guangyu. "Developing new asymmetric transformations for organic synthesis." Thesis, University of Bristol, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402310.
Повний текст джерелаPuri, Disha. "Certifying Loop Pipelining Transformations in Behavioral Synthesis." PDXScholar, 2017. https://pdxscholar.library.pdx.edu/open_access_etds/3480.
Повний текст джерелаBogár, Krisztián. "Synthetic transformations via metal- and enzyme-catalyzed dynamic kinetic resolution /." Stockholm : Department of Organic Chemistry, Stockholm University, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-6876.
Повний текст джерелаSoltani, Yashar. "Novel main group Lewis acids for synthetic and catalytic transformations." Thesis, Cardiff University, 2018. http://orca.cf.ac.uk/116974/.
Повний текст джерелаZhao, Qiang. "Development of New Synthetic Transformations of N-Sulfony1-1,2,3-triazoles." Kyoto University, 2019. http://hdl.handle.net/2433/242534.
Повний текст джерелаHong, Quanhua Claire. "SAR processing direct spectrum formation and image reconstruction /." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0004/MQ42575.pdf.
Повний текст джерелаMorin, Mathieu André. "Novel Organic Transformations Arising from Gold(I) Chemistry." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/36239.
Повний текст джерелаForsythe, W. Graham. "The synthesis and transformation of novel lignin model oligomers." Thesis, Queen's University Belfast, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.675451.
Повний текст джерелаLucas, Kaitlyn D. "Magnesium Sulfonyldibenzoates: Synthesis, Structure, Phase Transformation and Microscopic Studies." Youngstown State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1391780070.
Повний текст джерелаMortimer, Claire. "New transformations of azacycles." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:1fe27dc8-6525-4d45-a398-b3e6531e7b99.
Повний текст джерелаMcClanahan, Robert Henry. "Microbial and chemical transformations of cannabinoids and related alkyl phenols /." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487261919113874.
Повний текст джерелаColeman, Graham Keith. "Descriptor control of sound transformations and mosaicing synthesis." Doctoral thesis, Universitat Pompeu Fabra, 2016. http://hdl.handle.net/10803/392138.
Повний текст джерелаEl mostreig, com a tècnica musical o de síntesi, és una manera de reutilitzar expressions musicals enregistrades. En aquesta dissertació s’exploren estratègies d’ampliar la síntesi de mostreig, sobretot la síntesi de “mosaicing”. Aquesta última tracta d’imitar un senyal objectiu a partir d’un conjunt de senyals font, transformant i ordenant aquests senyals en el temps, de la mateixa manera que es faria un mosaic amb rajoles trencades. Una d’aquestes ampliacions de síntesi consisteix en el control automàtic de transformacions de so cap a objectius definits a l’espai perceptiu. L’estratègia elegida utilitza models que prediuen com es transformarà el so d’entrada en funció d’uns paràmetres seleccionats. En un cas, els models són coneguts, i cerques númeriques es poden fer servir per trobar paràmetres suficients; en l’altre, els models són desconeguts i s’han d’aprendre a partir de les dades. Una altra ampliació es centra en el mostreig en si. Mesclant múltiples sons a la vegada, potser és possible fer millors imitacions, més específicament millorar l’harmonia del resultat, entre d’altres. Tot i així, utilitzar múltiples mescles crea nous problemes computacionals, especialment si propietats com la continuïtat, important per a la síntesis de mostreig d’alta qualitat, han de ser preservades. En aquesta tesi es presenta un nou sintetitzador mosaicing que incorpora tots aquests elements: control automàtic de transformacions de so fent servir models, mescles a partir de descriptors d’harmonia i timbre perceptuals, i preservació de la continuïtat del context de mostreig i dels paràmetres de transformació. Fent servir proves d’escolta, l’algorisme híbrid proposat va ser comparat amb algorismes clàssics i contemporanis: l’algorisme híbrid va donar resultats positius a una varietat de mesures de qualitat.
Wallner, Olov. "Palladium-Catalyzed Synthesis and Transformations of Organometallic Compounds." Doctoral thesis, Stockholm : Dept. of Organic Chemistry, Stockholm University, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-804.
Повний текст джерелаAsikainen, Martta Irmeli. "Synthesis and gold-catalyzed transformations of allenic compounds." Thesis, University of Nottingham, 2012. http://eprints.nottingham.ac.uk/12367/.
Повний текст джерелаEdelstein, Emma Kate. "Enantioselective synthesis and stereospecific transformations of organoboronic esters." Thesis, Boston College, 2018. http://hdl.handle.net/2345/bc-ir:108038.
Повний текст джерелаThis dissertation details the development of several enantioselective or stereospecific transformations involving organoboronic esters. Chapter one will introduce electrophile-induced boronate rearrangements which underpins much of the reactivity that will be discussed in subsequent chapters. In chapter two the conjunctive cross-coupling reaction is presented. Its development and application to the synthesis of non-racemic boronic esters, along with its application to the synthesis of enantioenriched allylic boronic esters, will be discussed. In chapter three the cross-coupling of geminal bis(boronic) esters is introduced and the development of a method to employ them in cross-coupling with alkenyl bromides, affording enantioenriched substituted allylic boronic esters is outlined. In chapter four we highlight the utility of allylic boronic esters, and detail the development of a cross-coupling reaction that involves the use of these substrates and halide electrophiles to furnish enantiomerically enriched products containing all carbon quaternary stereocenters. Finally, in chapter five we describe the development of a metalfree amination reaction of organoboron compounds, which is able to deliver otherwise difficult-to-access enantiomerically enriched α-tertiary amines
Thesis (PhD) — Boston College, 2018
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Chemistry
Pellegrino, S. "Heterosubstituted carbocyclic Amino Acids : synthesis and stereocontrolled transformations." Doctoral thesis, Università degli Studi di Milano, 2005. http://hdl.handle.net/2434/58289.
Повний текст джерелаImayoshi, Ayumi. "Discrimination of Mobile Supramolecular Chirality: Acylative Molecular Transformation by Organocatalysis." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215486.
Повний текст джерелаSOUSA, Reudismam Rolim de. "Learning syntactic program transformations from examples." Universidade Federal de Campina Grande, 2018. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1712.
Повний текст джерелаMade available in DSpace on 2018-09-13T20:44:41Z (GMT). No. of bitstreams: 1 REUDISMAM ROLIM DE SOUSA – TESE (PPGCC) 2018.pdf: 4395945 bytes, checksum: 2241c8bad2cdc8eda86eb53c2e64c227 (MD5) Previous issue date: 2018-08-02
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Ferramentas como ErrorProne, ReSharper e PMD ajudam os programadores a detectar e/ou remover automaticamente vários padrões de códigos suspeitos, possíveis bugs ou estilo de código incorreto. Essas regras podem ser expressas como quick fixes que detectam e reescrevem padrões de código indesejados. No entanto, estender seus catálogos de regras é complexo e demorado. Nesse contexto, os programadores podem querer executar uma edição repetitiva automaticamente para melhorar sua produtividade, mas as ferramentas disponíveis não a suportam. Além disso, os projetistas de ferramentas podem querer identificar regras úteis para automatizarem. Fenômeno semelhante ocorre em sistemas de tutoria inteligente, onde os instrutores escrevem transformações complicadas que descrevem "falhas comuns" para consertar submissões semelhantes de estudantes a tarefas de programação. Nesta tese, apresentamos duas técnicas. REFAZER, uma técnica para gerar automaticamente transformações de programa. Também propomos REVISAR, nossa técnica para aprender quick fixes em repositórios. Nós instanciamos e avaliamos REFAZER em dois domínios. Primeiro, dados exemplos de edições de código dos alunos para corrigir submissões de tarefas incorretas, aprendemos transformações para corrigir envios de outros alunos com falhas semelhantes. Em nossa avaliação em quatro tarefas de programação de setecentos e vinte alunos, nossa técnica ajudou a corrigir submissões incorretas para 87% dos alunos. No segundo domínio, usamos edições de código repetitivas aplicadas por desenvolvedores ao mesmo projeto para sintetizar a transformação de programa que aplica essas edições a outros locais no código. Em nossa avaliação em 56 cenários de edições repetitivas de três grandes projetos de código aberto em C#, REFAZER aprendeu a transformação pretendida em 84% dos casos e usou apenas 2.9 exemplos em média. Para avaliar REVISAR, selecionamos 9 projetos e REVISAR aprendeu 920 transformações entre projetos. Atuamos como projetistas de ferramentas, inspecionamos as 381 transformações mais comuns e classificamos 32 como quick fixes. Para avaliar a qualidade das quick fixes, realizamos uma survey com 164 programadores de 124 projetos, com os 10 quick fixes que apareceram em mais projetos. Os programadores suportaram 9 (90%) quick fixes. Enviamos 20 pull requests aplicando quick fixes em 9 projetos e, no momento da escrita, os programadores apoiaram 17 (85%) e aceitaram 10 delas.
Tools such as ErrorProne, ReSharper, and PMD help programmers by automatically detecting and/or removing several suspicious code patterns, potential bugs, or instances of bad code style. These rules could be expressed as quick fixes that detect and rewrite unwanted code patterns. However, extending their catalogs of rules is complex and time-consuming. In this context, programmers may want to perform a repetitive edit into their code automatically to improve their productivity, but available tools do not support it. In addition, tool designers may want to identify rules helpful to be automated. A similar phenomenon appears in intelligent tutoring systems where instructors have to write cumbersome code transformations that describe “common faults” to fix similar student submissions to programming assignments. In this thesis, we present two techniques. REFAZER, a technique for automatically generating program transformations. We also propose REVISAR, our technique for learning quick fixes from code repositories. We instantiate and evaluate REFAZER in two domains. First, given examples of code edits used by students to fix incorrect programming assignment submissions, we learn program transformations that can fix other students’ submissions with similar faults. In our evaluation conducted on four programming tasks performed by seven hundred and twenty students, our technique helped to fix incorrect submissions for 87% of the students. In the second domain, we use repetitive code edits applied by developers to the same project to synthesize a program transformation that applies these edits to other locations in the code. In our evaluation conducted on 56 scenarios of repetitive edits taken from three large C# open-source projects, REFAZER learns the intended program transformation in 84% of the cases and using only 2.9 examples on average. To evaluate REVISAR, we select 9 projects, and REVISAR learns 920 transformations across projects. We acted as tool designers, inspected the most common 381 transformations and classified 32 as quick fixes. To assess the quality of the quick fixes, we performed a survey with 164 programmers from 124 projects, showing the 10 quick fixes that appeared in most projects. Programmers supported 9 (90%) quick fixes. We submitted 20 pull requests applying our quick fixes to 9 projects and, at the time of the writing, programmers supported 17 (85%) and accepted 10 of them.
Deal, S. Todd. "Synthetic transformations of sugars in relation to aminoglycoside antibotics and their components /." The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487684245466666.
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