Tesis sobre el tema "Conjugate code"
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Jauré, Stéphan. "Conjugate heat transfer coupling relying on large eddy simulation with complex geometries in massively parallel environments". Phd thesis, Toulouse, INPT, 2012. http://oatao.univ-toulouse.fr/18534/1/Jaure_Stephan.pdf.
Texto completoMirbagheri, Arash. "Linear MMSE receivers for interference suppression & multipath diversity combining in long-code DS-CDMA systems". Thesis, Waterloo, Ont. : University of Waterloo, 2003. http://etd.uwaterloo.ca/etd/amirbagh2003.pdf.
Texto completo"A thesis presented to the University of Waterloo in fulfilment of the thesis requirement for the degree of Doctor of Philosophy in Electrical and Computer Engineering". Includes bibliographical references. Also available in microfiche format.
Dieni, Edoardo. "Conception 'juscorporaliste' et divorce dans le droit matrimonial canonique l'idee de conjugalite chez les codificateurs de 1917 et ses ascendences". Paris 11, 1997. http://www.theses.fr/1997PA111011.
Texto completoThe work wishes to offfer a critical approach to the canonistic idea of marriage, as resulting, at present, by the code of canon law (or by his mainstream interpretation). This idea consideres, in conclusion, spiritual partnership after divorce not infringe the principle of indissolubility. Thus, the study investigates some of the cultural origins of such idea, regarding especially the classic age of canon law - that fixed the long-lived outline of marriage - and the re-formulation of canonical discipline at times of compiling 1917 code of canon law - when the traditional conception was radicalised (the research concentrates on the unpublished documents of vatican secret archives). Subscribing to this historical point of view, it seems that many of contemporary questions on marriage must be considered in the light of the status of christian life; neverthless, the relation clergy-laic in the roman church is turned problematical and precarious after the second vatican council. Waiting for further development in the field of the theology and of the constitutional structure of the church, the study suggests an interim canonistic solution for the case of catholics divorced and remarried
Gabiam, Edoh. "Les remedes a la mesentente conjugale dans le code togolais de la famille". Poitiers, 1988. http://www.theses.fr/1988POIT3001.
Texto completoTogo's family code came into existence on january 31,1980 and contents two kinds of remedies for conjugal conflicts. These remedies can be distinguished by their consequences on the marriage. The remedies that are used by the judge in order to preserve personnal and financial relations between the husband and the wife do not imply the desapearance of the bonds created by the marriage. For the most part, these remedies are elaborated to protect the wife from a misuse of the powers given to the husband who is the head of the family and the manager of the goods of the family. The temporary characteristic of these remedies and their area of application (sanction against the breach of the law concerning the pratical affairs of the marriage and the misuse of rights related to the marriage) allows them to designate "ponctual remedies". On the other hand, the other remedies are elaborated to operate for a longer periode of time and cause a loosmess and a dissolution of the marriage bonds. They are created for both the husband and the wife and are designated "durable remedies". Despite of that distinction, the two types of remedies for conjugal conflicts must necessarily fail because of the inadaptation of their texts and because of the persistance of traditionnal solutions of conjugal conflicts. The judge must adapt the code to the realities of togo life and to make his decisions to cause a new intervention by togo's legislators
Gabiam, Pierre E. "Les Remèdes à la mésentente conjugale dans le code togolais de la famille". Lille 3 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376137278.
Texto completoAlbuquerque, Julio Cesar Holanda de. "Proposta de constelações de sinais para o codigo genetico". [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/259781.
Texto completoDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação
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Resumo: A proposta deste trabalho é apresentar uma abordagem aos processos genéticos e moleculares, utilizando a teoria de comunicações e codificação na modelagem do dogma central da biologia molecular. A partir desta modelagem associamos o código genético a um modulador de um sistema de comunicação. Mais especificamente, tal procedimento consiste em construir uma constelação de sinais a partir dos subgrupos de S3 e S4 baseado no código genético. Considerando este método algébrico de construção de sinais, propomos duas possíveis constelações de sinais para o código genético. A representação do código genético em constelações de sinais correlacionadas deu origem à idéia de "constelação de sinais concatenadas", idéia inovadora na teoria de comunicação e codificação. As constelações de sinais concatenadas possui a propriedade de correção de erros, consistindo de novos conceitos úteis para utilização na teoria da comunicação e codificação. Por outro lado, estas representações do código genético não são únicas pois, até o presente momento, desconhecemos uma álgebra que descreva o código genético juntamente com as suas partições geradas pelos aminoácidos.
Abstract: The purpose of this work is to present an approach to the genetic and molecular processes by use of the communication and coding theory in modelling the central dogma of the molecular biology. From this modelling we associate the genetic code to a modulator in the communication system. More specifically, such a procedure consists is in the construction of a signal constellation by use of the S3 and S4 permutation subgroups based on the code genetic. By considering this algebraic method of signal design, we propose two possible signal constellations to the genetic code. The representation of the genetic code as correlated signal constellations provides the idea idea of "concatenated signal constellation", an innovative idea in communication and coding theory. The concatenated signal constellations have the property of error-correction, a new concept being introduced. On the other hand, these representations of the genetic code are not unique for currently, we do not know an algebraic structure capable of describing the genetic code together with the partitioning generated by the amino acids.
Mestrado
Telecomunicações e Telemática
Mestre em Engenharia Elétrica
Zhang, Zexuan. "Simulation of Combustion and Thermal-flow Inside a Petroleum Coke Rotary Calcining Kiln". ScholarWorks@UNO, 2007. http://scholarworks.uno.edu/td/1073.
Texto completoMinson, Mahan Gbeu. "Les ruptures volontaires du lien conjugal en Cote d'Ivoire". Strasbourg 3, 1996. http://www.theses.fr/1996STR30021.
Texto completoIf the euphoric laws of the years of african independence are supposed to protect among other things, the children as regards death-duties or the laws of custody, and women concerning marriage and divorce, the ancestral customs remain a dreadful impediment in nearly all countries of black africa. The listlessness of the public authorities towards this endurance is exactly the reason that induced us to choose this subjet. Indeed, these laws, aiming at the accelaration of the ecomic development and the modernisation of the family and judical institutions, and as well to deal with an equality problem regarding the administration of justice. Thus, concerning the matter of divorce, objective and precise causes, valid for men as well as for women, have been defined in the ivorian law. The destiny of the common patrimony of the married couple, on the whole, or the properties of each one of them, is regulated by the articles 7 and 8 of the law number 64376 from the 7th of october 1964 since the opening of the procedure. However, the sociological reality remains unchanged concerning the Ivory coast, where 80% of the population is rural and illiterate. The ancestral customs remain the only legal norms that the people spontaneously have recourse to, without even bothering about the existance of modern law childbird is always assured by non-legitimate midwives, who in the case of any difficulty
Krismanich, Anthony. "Studies Related to Tandem Reactivity of 1-Carbomethoxy-5-dicyanomethyl-1,3-cyclohexadiene". Thesis, University of Waterloo, 2006. http://hdl.handle.net/10012/2954.
Texto completoThe ring-opened adduct was also envisaged as a potential substrate in intramolecular Heck reactions. To this end, Heck substrates were generated from the ring-opened adduct anion and iodo- and bromo-benzyl halides. A key observation at this stage pertained to the unexpected acidity of the ring-opened adduct C5 proton, which could be deprotonated by DBU to bring about allylic isomerization, a finding that would provide a key insight to the pattern of reactivity later evidenced with alkyl propiolates. Optimization of the Heck substrate-generating reaction was followed by Heck reactions under Jeffery's conditions, which generated angular tricycles as intended, accompanied by aromatic compounds generated by base-induced HCN elimination/rearrangement and dehydrogenation. The Jeffery's conditions were optimized to limit the production of aromatics.
The possibility of ring-opened adduct-derived vinyl silane intermediates undergoing cationic cyclizations led to a minor study based upon the bromination of allylsilanes and the elimination of TMSBr from 1,2-dibromo-3-trimethylsilyl compounds, accessible compounds unaccounted for in the review literature. It was determined that the combination of HBr and Br2 (perhaps as HBr3) was required to eliminate TMSBr, in contravention of the textbook account of electrophilic substitutions being the inherent reactions of allylsilanes and Br2.
Unexpected tandem reactivity was observed in the reactions of the anionic ring-opened adduct and alkyl propiolates under catalytic DBU conditions. Rather than tandem cyclization or simple adduct formation, the allenolate intermediates were determined to undergo extremely facile formal allenolate Cope rearrangements involving the ?,d-double-bond of the parent ring. Excess base intercepted the allenolate by deprotonating ring C5 and effecting 1,2-vinyl transfer by 3-exo-trig addition-elimination. The chemistry of the highly delocalized side-chain carbanion in the Cope product was studied in detail.
Silva, Daniela Santos. "Análise das concepções de profissionais sobre a violência em âmbito conjugal contra as mulheres". Universidade Estadual de Londrina. Centro de Estudos Sociais Aplicados. Programa de Pós-Graduação em Serviço Social e Política Social, 2017. http://www.bibliotecadigital.uel.br/document/?code=vtls000212079.
Texto completoThis dissertation aims to analyze the conceptions of professionals about conjugal violence against women. In order to do so, we seek to raise the current definitions of violence against women in the marital context, to analyze the axes of racism, patriarchy and capitalism that, according to Saffioti (1987), form the knot that characterizes the system of domination and exploitation, The daily thought to, finally, to appreciate the conceptions of the subjects of the research, having as locus the Network of Coping with the Domestic and Sexual Violence Against the Women of the Municipality of Londrina. This is a descriptive, qualitative and field research. We carried out bibliographical review, field observation and semi-structured interviews with professionals working in said Network. As a result, we find that the conceptions of the subjects of this research find theoretical support from different perspectives. Among them we highlight the explanation of violence against women having these as accomplices; There are other subjects who conceive this phenomenon starting from the assumption that women are victims and there are those who are based on a historical-critical approach placing this question in the system of domination-exploitation based on patriarchy-racism-capitalism. We point out that many of the conceptions raised in this study are contradictory in themselves, that is, the same subject can in a fragment of speech support his analysis in more than one of the cited perspectives. This contradiction is not exclusive to these subjects, but it is a category immanent to reality, whose social subjects and everyday thinking are forged in a sociability based on the system of domination-exploitation, marked by the gender inequality that has in violence one of the forms of materialization.
Evedove, André Ulian Dall. "Mudança na situação conjugal e associação com a incidência e manutenção de comportamentos positivos de saúde : estudo Vigicardio (2011-2015)". Universidade Estadual de Londrina. Centro de Ciências da Saúde. Programa de Pós-Graduação em Saúde Coletiva, 2018. http://www.bibliotecadigital.uel.br/document/?code=vtls000217653.
Texto completoIntroduction: Some evidences indicates that the marital situation is associated with health indicators, in general, indicating that people with partners (married or in a consensual union) have lower morbidity and mortality rates compared to people without partners (single, divorced or widowed). However, there are few epidemiological and longitudinal studies that associate marital transition with health behaviors, especially in Latin America. Objective: To verify the association between changes in marital status and the incidence and maintenance of positive health behaviors. Methods: A prospective longitudinal study, which is part of the project: "Incidence of mortality, morbidity, hospitalizations and changes in risk factors for cardiovascular diseases in a sample of residents aged 40 years or over in a medium-sized municipality in southern Brazil: Cohort study Vigicardio (2011-2015)" conducted with individuals aged 44 years or more residents in Cambé / PR. For this study, 883 people participated. The dependent variables were: physical activity in free time, fruit consumption, vegetable consumption, smoking, alcohol consumption, self-perception of health and obesity. Analyzes were also performed with the combination (analysis of simultaneity) of the health-related behaviors considered. The independent variable was the marital situation, comparing the situation of each subject in the four years of the study. Thus, subjects were divided into four groups. Group 1: people who had a partner at both times (n = 583); Group 2: people who had a partner in 2011, but not in 2015 (n = 72); Group 3: people who had no partner at the two moments (n = 204); Group 4 (n = 24): people who did not have a partner in 2011 but had in 2015. In addition to the dependent variables and the independent variables, the following confounding variables were considered: gender, age group, economic class and schooling. The data were analyzed in the SPSS vs. 19, through the crude and adjusted Poisson logistic regression. Results: Participants who had no partner had a lower incidence of smoking cessation (RR: 0.29, 95% CI: 0.12-0.68), of regular consumption of fruits (RR: 0.43, 95% CI: 0,20-0,90) and maintenance of at least two positive health behaviors (RR: 0.80, 95% CI: 0.70-0.92) than subjects who had a partner in both collections. On the other hand, the participants who had a partner had greater incidence at least positive health behavior (RR 1.76, 95% CI: 1.07-2.88) and had a higher incidence of regular consumption of fruits (RR: 2.42, 95% CI: 1.40-4.18) than those who had no partner in 2011 and 2015. On the other hand, it is worth mentioning that some dependent variables, specifically: physical activity in free time and consumption of vegetables and vegetables were not shown to be associated with the change in the marital situation. Conclusion: The transition from the marital situation, both in participants who passed or did not have a partner, influenced the change and maintenance of health indicators. Such results are important for better health care plann.
Tangbunsuk, Siree. "Solution self-assembly of metallopolymer-peptide conjugates and block copolymers with a crystallisable core-forming polylactide block". Thesis, University of Bristol, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540871.
Texto completoDeol, Suprit S. "Stability, cytotoxicity, and cell permeability of dendron-conjugated gold nanoparticles with 3, 12, and 17 nm core". Thesis, California State University, Long Beach, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1590079.
Texto completoThis thesis describes the synthesis of water-soluble dendron-conjugated gold nanoparticles (Den-AuNPs) with various average core sizes and the evaluation of stability, cytotoxicity, and cell permeability and uptake of these materials. The characterization of Den-AuNPs using various instruments including transmission electron microscopy (TEM), matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF-MS), 1H NMR, FT-IR, and UV-vis spectroscopy confirms the dendron conjugation to the glutathione-capped gold nanoparticles (AuNPs). The stability of AuNPs and Den-AuNPs in solutions of different pH and salt concentration was determined by monitoring changes in surface plasmon bands of gold using UV-vis spectroscopy. The Den-AuNPs were found to be more stable than the precursor AuNPs maintaining their solubility at the pHs higher than 4 and with the salt concentrations of up to 100 mM. The improved stability of Den-AuNPs suggests that the post-functionalization of thiol-capped gold nanoparticle surfaces with dondrons can further improve the physiological stability and biocompatibility of gold nanoparticle-based materials. Cytotoxicity studies with AuNPs and Den-AuNPs with and without flourophores were also performed by examining cell viability for 3T3 fibroblasts using a MTT cell proliferation assay. The conjugation of dendrons to the AuNPs with flourophores was able to decrease the cytotoxicity brought about by the flourophores. The successful uptake of Den-AuNPs in mouse fibroblast 3T3 cells shows the physiological viability of the hybrid materials.
Khichane, Samia. "Ethnographie des conflits domestiques en Kabylie : injures, commérages, malédictions". Thesis, Sorbonne Paris Cité, 2018. http://www.theses.fr/2018USPCA134.
Texto completoIn Kabylia, a society with a male-domination patriarchal tradition, women have employed for many centuries a set of indirect practices, defined in the literature as « counter-powers » (Lacoste-Dujardin, 1985, 2008). Through several processes, they looked as they have always defied the dominant authority by exercising magical practices, adapting to the norms and values of society, but also, by their mastery and subtle use of the art of speech. Female term of abuse, as an act of language, is one of the strategies used by kabyle women to exert their power in an indirect manner on the dominant society, constituted by the men.Most of the research work that focused on the issue of insults in Kabylia has been conducted by anthropologists who analyzed it in its ritualized aspect (Aït-Ferroukh, 1999, Rabia, 1988) or by linguists whose reflections were conducted essentially on the semantic criterion in relation with the worldview and society (Mebtouche-Nejai, 2012). In the anthropological perspective that interests me, the insult will be apprehended as a set of social acts with consequences (Laforêt and Vincent, 2004), rather than as a category of deprecating speech, hence the need to take into account its pragmatic value in the dimension of the harm caused or suffered or the insulting effect (Larguèche, 1983, 1993, 2004, 2009) which is necessary for its comprehension.Based on the typological specifics of female insults, I will try to show, from an essentially pragmatic perspective, in a male-dominating society where the speech is codified, how the insult, as a linguistic transgression, allows women to exert their power indirectly. Examining these processes will help to identify the stakes of feminine power and to see at what extent the insult can be used as a counter-power
Yuan, Kai, Xiaodong Zhuang, Haiyan Fu, Gunther Brunklaus, Michael Forster, Yiwang Chen, Xinliang Feng y Ullrich Scherf. "Two-Dimensional Core-Shelled Porous Hybrids as Highly Efficient Catalysts for Oxygen Reduction Reaction". Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-235469.
Texto completoBaqué, Bénédicte. "Couplage aéro-thermo-mécanique pour la prédiction de la déformation d'une plaque soumise à une flamme". Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2012. http://pastel.archives-ouvertes.fr/pastel-00718738.
Texto completoGlaumaud-Carbonnier, Marion. "Quereller l'azur. Lignes et figures du divorce dans le récit français (1870-1905)". Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCA150.
Texto completoDivorce as an object of literary study, the proposal may surprise. The distinctiveness of fields and areas of research requires that a choice be made to study the question from a historical, political, legal, social or moral point of view. Literature, however, is never even considered. In 1884, the rehabilitation of divorce in French legislation was the result of an unusual combination of politics and literature. From the editorials and columns of the newspapers, in essays and in books, the narration of matrimonial misfortunes of men and women caught strangled by the law, wrestling against a civil inevitability that constrains their private and conjugal life, clamors for un-marriage. While the ties between literature and the claims for legal disunion are secular, linked in the works of George Sand, the battle of pens fighting against the indissolubility of marriage will significantly change the thinking of engaged literature and encourage a reasoning on the role of the writer, his relation to the law, and to demonstrate the power of literature on morals and the drafting of legislation.As a valuable analytical tool to understand the intellectual, literary and narrative aspects of the beginnings of the Third Republic, the un-marriage topic can be used to study the representation of conjugality in the French narrative of the end of the 19th century. Henceforth legal, divorce in fact transforms the imagination of literature on private morals and inaugurates new narrative situations: the encounter with the former husband, the jealousy of the new husband, the second wedding night, and the sexual past of the woman, all soon become common practice in the literary genre. The promulgation of divorce nevertheless rudely tests French narrative customs: by offering a solution to stories of adultery, divorce breaks a secular narrative model, and obliges literature to rethink its fatalities and its forms
Bouchareb, Hafida A. L. "La confrontation de la dissolution du lien conjugal et ses effets entre les états maghrébins et les états européens francophones, France et Belgique". Doctoral thesis, Universite Libre de Bruxelles, 2008. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210425.
Texto completoS’il est un domaine où se heurtent des visions difficilement conciliables entre l’Europe et certains pays musulmans, c’est bien celui du mariage mixte et particulièrement celui de la répudiation. Il faut souligner que le problème perdure depuis plus de vingt ans.
Toutefois un grand nombre de ressortissants Marocains réside en Belgique ce qui conduit inévitablement à ce que des problèmes liés à la dissolution de leur mariage se posent. A ces difficultés viennent s’ajouter les problèmes de conflits de lois. Cette étude a donc tenté de dégager les caractéristiques des différents systèmes étudiés et de montrer les divergences qu’ils comportent en terme de méthodes utilisées dans le règlement des conséquences du divorce ou de répudiation.
La présence d’une communauté immigrée de statut personnel musulman et la rencontre de l’ordre juridique européen avec ce phénomène, posent l’épineux problème de l’harmonisation de deux systèmes juridiques fondamentalement différents et a ainsi pu être qualifié de « conflit de civilisations ». Ce qui permet une vue globale du sujet.
Summary: The purpose of this thesis is to study the dissolution of a marriage tie between North African states and European French speaking states, and what this dissolution means in term of confrontation on both sides concerning the juridic systems european and islamic. The difficulties of coordination between the islamic way of life and the international law are the result of divergence relating with personal status and family right. In the islamic law, personal status and religious faith are closely interlinked. Moroccan nationals who step up house in an european country are confronted with the law of the Maghreb and the law of the country witch welcomes them.
Mixed marriages and in particularly in a case of repudiations are a sphere where european nations and some muslim nations don’t see things in the same way. One has to emphasize that these problems have been enduring for over tweenty years. A great numbers of Morocans lives in Belgium which leads to difficulties if their marriages have to be dissolved. Over these difficulties problems of laws conflicts are added. This study have tried to show the characteristics of these systems and the different way to solve the consequences of the divorce or of the repudiation. The presence of an immigrated community of personal muslim status and the encounter of the juridic european system with this phenomenon set the acute issue of the harmonization of two juridics systems deeply different. This can be described as a “conflict of civilisations”. This allows a broad view of the subject
Doctorat en droit
info:eu-repo/semantics/nonPublished
Björklund, Frida. "Subcellular mapping of cell types in healthy human pancreatic islets". Thesis, KTH, Proteinvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302215.
Texto completoLangerhanska öar består av endokrina celler som utsöndrar hormoner nödvändiga för reglering av blodsockernivåerna. Tidigare forskning har visat att genuttrycket och funktionaliteten är heterogen i de celler som utgör mänskliga Langerhanska öar. Dock är förståelsen för hur heterogeniteten korrelerar till normal cellfunktion och dysfunktion i diabetespatogenes fortfarande ofullständig. Följaktligen har ett internationellt samarbete inletts i syfte att undersöka vad som utgör heterogenitet i Langerhanska öar ur ett transkriptionellt, proteomiskt och funktionellt perspektiv i såväl friska som sjuka individer. I denna studie utvecklades en metod för multiplex mikroskopisk avbildning av vävnad för att möjliggöra undersökningen av hur proteiner som tidigare korrelerats med endokrin cellspecifik aktivitet och heterogenitet i Langerhanska öar var lokaliserade med hjälp av plattformen för Co-Detection by indEXing (CODEX). Totalt undersöktes 22 proteiner samtidigt varav 10 var specifikt uttryckta i celler som utgör Langerhanska öar. Bland dessa proteiner fanns generella markörer för vanligt förekommande celltyper i Langerhanska öar såsom C-peptid (C-pep) som markör för insulinsekreterande β-celler, glukagon (GCG) och somatostatin (SST) såväl som proteiner med färre kända funktioner såsom Shisa like B (FAM159B) och Neural proliferation, differentiation and control 1 (NPDC1). Med hjälp av multiplex mikroskopisk avbildning av vävnad kunde uttrycket av proteiner specifikt uttryckta i celler som utgör Langerhanska öar analyseras för enskilda celler i vävnaden. Denna analys visade att de flesta proteiner specifikt uttryckta i celler som Langerhanska öar består av var heterogent uttrycka. Resultaten från denna studie validerar att mikromiljön i Langerhanska öar är mycket komplex på grund av cellernas heterogenitet. Vidare visade denna studie att multiplex mikroskopisk avbildning av vävnad har potentialen att identifiera nya celltyper och interaktioner.
Lorenz, Nicole. "Application of the Duality Theory". Doctoral thesis, Universitätsbibliothek Chemnitz, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-94108.
Texto completoPUCCI, EGIDIO. "Innovative design process for industrial gas turbine combustors". Doctoral thesis, 2018. http://hdl.handle.net/2158/1126566.
Texto completoLiu, Wenlan [Verfasser]. "Exciton coupling in valence and core excited aggregates of π-conjugated [pi-conjugated] molecules / vorgelegt von Wenlan Liu". 2011. http://d-nb.info/1011413124/34.
Texto completoTsai, Cheng-Yan y 蔡政諺. "Simulation Analysis of Sheath/Core Conjugated Fibers and Non-isothermal Hollow Fibers". Thesis, 2010. http://ndltd.ncl.edu.tw/handle/x9448w.
Texto completo國立臺北科技大學
化學工程研究所
98
Our study analyzes the fluid stimulation (FS) of sheath/core conjugated fibers and non-isothermal hollow fibers by utilizing the finite element method as well as, optimesh-3D re-meshing and EVSS/SU numerical techniques. Co-Pet, Co-Nylon, Pet, Nylon6 and polypropylene were separately used in the stimulation. According to the rheological data obtained by both plate and capillary rheometers, each material parameter would be presented via polymat fitting. In the FS analysis for the conjugated fiber spinning, the eccentric percentage (EP) of the conductive fiber was hard to control and further led to the low level of manufacture in yarn. Therefore, the objective of this research is to discuss the effects of the material parameters and spinning conditions on the EP of fibers. Based on the FS consequence, the increase of material viscosity ratio and die roughness, lead to elevate EP in the end of fiber. However, higher flow rate ratio has opposite effects of EP. 4C type spinneret used in hollow fiber, this method so far is an important process in hollow fiber formation. Material properties regulated by non-isothermal boundary condition influence the follow-up efficiency in application; these may due to both hollow fiber intensity and hollow percentage are uncontrolled. Furthermore, rheological properties, spinneret temperature, 4C gap, and the effects of spinning flow rate on fissure length, fissure temperature, and hollow percentage, are studied systematically. Taken together, high spinning flow rate causes the trend toward shortening fissure length and vice versa during increasing the spinneret temperature. Additionally, raising spinning flow rate helps to increase the fissure temperature leading to better viscosity. The fissure temperature of lower material viscosity is decreased; nevertheless, lower spinning flow rate needs to extend fissure length. In terms of hollow rate changes, this decrease immediately out of yarn terminal and elevates gradually after that.
Liu, Wenlan. "Exciton Coupling in Valence and Core Excited Aggregates of pi-Conjugated Molecules". Doctoral thesis, 2011. https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-56169.
Texto completoThis work focuses on theoretical approaches for predicting the valence and core excited states of aggregate systems. For the valence excitations, TD-HF and TD-DFT with different functionals have been tested at the Perylene bisimide (PBI) system. A simple character analysis method based on the calculated transition dipole moments is proposed. However, this method does not work for excited states without any transition dipole moment. Thus, we proposed a more general and more valid method based on a calculated CIS type wavefunction for the character analysis. Furthermore, a model Hamiltonian method is derived from a localized picture. The energies of the diabatic states and the corresponding coupling parameters were also determined on the basis of ab initio calculations. For the core excitation, three different methods were validated for C 1s-excited and ionized states if several small molecules. Also we tested the basis sets dependence of these core excited states. Based on those results, we chose the frozen core approximation method to evaluate the core excited states of NTCDA molecules. In order to explain the findings in the experiments, we developed an algorithm to evaluate the exciton coupling parameter where non-orthogonal MOs are used
Chen, Jia-Hong y 陳嘉弘. "Synthesis, Properties and Applications of Novel π-Conjugated Materials with Coplanar Core". Thesis, 2010. http://ndltd.ncl.edu.tw/handle/02471666515653180131.
Texto completo臺灣大學
化學研究所
98
α-Oligothiophenes are one of the most prominent organic semiconducting materials and have been widely studied in electronic devices. However, deviation from planarity may decrease conjugation in oligothiophenes through torsion about single bonds or S-syn defects. Furthermore, theoretical studies predict that the molecular packing is not optimized for maximum charge carrier mobility. Herein, we report unprecedented synthetic routes for the synthesis of a novel class of carbon bridged oligothiophenes with coplanar molecular configuration. We characterized the nearly flat molecular structures of TT and TTB by using X-ray crystallography. These coplanar cores have also been functionalized as metal-free organic sensitizers TT1N and BTB-1 used for dye-sensitized solar cells (DSSCs) and given PCEs of 4.29% and 5.83%, respectively. On the other hand, we utilized similar idea to synthesize a novel class of star-shaped coplanar molecules with C3 symmetry. To the best of our knowledge, this is the first report about the synthesis of truxene analogues embedding thiophene rings as functional constituents. We anticipate that this new C3-symmetric molecule would drastically reconstitute the properties of its hydrocarbon parent due to the presence of electron-rich thiophene rings.
"Controle vertical e alterações mandibulares em individuos tratados com arco extrabucal conjugado". Tese, Biblioteca Digital da Unicamp, 2004. http://libdigi.unicamp.br/document/?code=vtls000336266.
Texto completoLin, Wei-Ling y 林威伶. "Preparation and characteristics of a water-soluble core-shell conjugated polymer/fullerene composite". Thesis, 2016. http://ndltd.ncl.edu.tw/handle/02056524973606871350.
Texto completo國立臺灣科技大學
化學工程系
104
Conjugated polymers possess unique optical and electrical properties are investigated. These conjugated polymer/fullerene composites are widely used for optoelectronic devices due to their effective donor-acceptor energy transfer. However, they are only soluble in organic solvent that is harmful for the environment. In this study, we present and develop an environmentally friendly water-soluble conjugated polymer/fullerene composite. The conjugated polymer was poly(3-thiophene acetic acid) and it was converted to an amphiphilic polymer to make it water-soluble. We adopted the characteristic of the amphiphilic polymers to encapsulate fullerenes in water as since fullerenes are hydrophobic. The composites are not only soluble in water but also retain the donor acceptor properties. The 100 nm core-shell structures were investigated and confirmed by DLS measurement, SEM, and TEM. The existence of donor acceptor energy transfer were confirmed by PL and XPS. The characteristics of the composite, such as thermal stability and electrical conductivity, also were determined. Importantly, the conductivity of this newly-developed nanoparticles can be increased to 1.85 x 10-1 S/cm, which is higher than 4 orders of magnitude of poly(3-thiophene methyl acetate). Preparation and the characteristics of the water-soluble ionized PTAA/fullerene composite were presented in this study.
"Rasuras nos albuns de familia : um estudo sobre separações conjugais em processos juridicos". Tese, Biblioteca Digital da Unicamp, 2003. http://libdigi.unicamp.br/document/?code=vtls000295350.
Texto completo"Analise e implementação de algoritimos de controle otimo pelo metodo do gradiente conjugado". Tese, Biblioteca Digital da Unicamp, 2004. http://libdigi.unicamp.br/document/?code=vtls000048126.
Texto completoLiao, Yi-Ting y 廖怡婷. "Numerical Simulation Analysis of Melt Spinning for Eccentric Sheath/Core Conjugated Fibers and Profile Fibers". Thesis, 2008. http://ndltd.ncl.edu.tw/handle/89t3v5.
Texto completo國立臺北科技大學
化學工程研究所
96
At present, fiber fabric not only has cold-proof functions for the clothes, but expect to has additional functions of picking up the moisture, arranging sweat and can be fluffy and keep glossiness on the sense of touch. In recent year, experimentalists are developing the function fibers, such as the conjugated fibers, profile fibers, and extra-thin fibers, etc. In this study we use the three-dimension finite element method to carry out the numerical simulation of conjugated fibers and profile fibers. Three types of constitutive equations, such as Newtonian fluid, Maxwell model and PTT model, were implemented to simulate the considered flow system. In general co-extruding eccentric sheath/core conjugated fibers is made of two melting polymers from the same spinneret and contained within the same filament. Because the core layer is eccentric, an uneven cross-sectional configuration and different shrinkage of each compositions likely wrap themselves into a helical configuration upon post treatment. Not only have fluffy on the sense of touch, but also achieve additional function of picking up the moisture and arranging the sweat. Numerical simulation is utilized to investigate the effects of material viscoelasticity and operating conditions on the eccentricity of co-spun fibers. Nylon and CO-Nylon with hydrophilic function is considered as the core layer, PET and CO-PET in the sheath layer. After the determination of material parameters, the effect of viscosity, elasticity, shear thinning viscoelasticity and eccentricity of entrance on the eccentricity are investigated. Profile fibers were made by changing geometry of spinneret. Using the surface channel formed in the fibers to absorb the sweat, diffuse, transmit, move to the surface of fabric and disperse rapidly, thus achieve the goal of leading the fabric dry. In this study, we simulated the change of the cross-sectional shape for W-typed and cross-typed fibers when they emerge from the spinneret. We first performed rheological measurements for CO-PET, CO-Nylon, PET, and PP15, and proceeded to fit the experimental data to Newtonian fluid, Maxwell, and PTT models. After the determination of material parameters the effect of viscosity, elasticity, shear thinning viscoelasticity and operation conditions on the cross section difference between the profile fiber and the spinneret was investigated respectively.
"Estudo psicossocial de mulheres vitimas de violencia domestica, que mantem o vinculo conjugal apos terem sofrido as agressões". Tese, Biblioteca Digital da Unicamp, 2004. http://libdigi.unicamp.br/document/?code=vtls000318255.
Texto completo"A utilização conjugada de tecnicas de opções reais e simulação geoestatistica : metodologia para integrar modelos geologicos na avaliação de projetos de mineração". Tese, Biblioteca Digital da Unicamp, 2004. http://libdigi.unicamp.br/document/?code=vtls000317265.
Texto completo林意惠. "Study of Novel Photoluminescent Materials Containing Five-Conjugated Aromatic Rings with Bis-pyridyl Group and Fluorene central core". Thesis, 2004. http://ndltd.ncl.edu.tw/handle/s725wn.
Texto completo國立交通大學
材料科學與工程系所
92
Study of Novel Photoluminescent Materials Containing Five-Conjugated Aromatic Rings with Bis-pyridyl Group and Fluorene central core Graduate student : Yi-Hui Lin Advisor : Dr. Hong-Cheu Lin Department of Materials Science and Engineering National Chiao Tung University Abstract A series of novel photoluminescent materials with five conjugated aromatic segment including end-capping pyridine were synthesized suc- cessfully via Heck coupling reaction, Wittig -Horner reaction. Hydrogen bonding complexes were obtained from the mixing of these luminescent compounds with different proton donors containing carboxylic acids gr- oups in THF. The thermal properties of these materials were measured by TGA. The decomposition temperature at 5% weight loss (Td) of all com- pounds ranged from 370℃~ 409℃. DSC and POM claimed that most of these compounds have mesogenic phase. The optical properties of these materials were measured by UV-Vis and PL (photoluminescence) spectroscopic studies. These compounds exhibited maximum absorption in the range of 405 nm~430 nm in diluted THF. They emitted green fluorescence around 455~480 nm in THF. The quantum efficiency of them were ranged from 60% ~ 67% comparing to Perylene. For a good formation of Hydrogen-bonding complexes, the highly acidic proton donor should be used . The energy band gap was shortened once the Hydrogen-bonding complexes were formed. According to the PL spectra, all the complexes whose contain THDA showing the most apparent red-shifted emission due to its lowest pka value. The CV showed that the HOMO and LUMO of these compounds were located at 5.29 eV ~ 5.58 eV and 2.74 eV ~ 2.95 eV respectively. The polarization measurement showed the existence of the polarized light and the polarization ratio is about 4.89 .
Lin, Ting-Yu y 林庭伃. "Synthesis and Characterization of Double Strand DNA-Conjugated Magnetic Fe3O4 Core/Au Shell Nanoparticles for a Tunable Drug Delivery System". Thesis, 2012. http://ndltd.ncl.edu.tw/handle/03937356062414992755.
Texto completo國立交通大學
材料科學與工程學系奈米科技碩博士班
101
Magnetic Fe3O4 core/Au shell nanoparticles exhibit both magnetic property of Fe3O4 core and well-established surface chemistry, biological reactivity of Au shell. In this study, magnetic Fe3O4 core/Au shell nanoparticles were synthesized by reducing HAuCl4 on the surface of monodispersed Fe3O4 nanoparticles in the aqueous solution after the facile synthesis of Fe3O4 nanoparticles by co-precipitation process that are more popular for biological applications. Next, transmission electron microscopy (TEM) images, selected-area electron diffraction (SAED) patterns, and optical property by UV-Vis all clearly demonstrate the fact that core/shell nanoparticles were successfully formed as the form of Fe3O4 nanoparticles covered by Au shell; as well as superconducting quantum interference device (SQUID) results show the great superparamagnetic property of Fe3O4 core/Au shell nanoparticles. In addition, by functionalizing the surfaces of magnetic Fe3O4 core/Au shell nanoparticles with CG rich double strand DNA through Au-S bonds, which are themo-sensitive molecules, the doxorubicin with fluorescence as anticancer drug could be carried via intercalation. Further, when the innovative drug carriers were heated under high frequency magnetic field, the double strand DNA dehybridized and then caused the release of doxorubicin. Among suffered different periods of high frequency magnetic field, the release of doxorubicin can be tuned. In this study, the release rate can achieve up to 79% in less than 10 minutes based on our drug delivery system. As a result, this tunable drug delivery system with magnetic Fe3O4 core/Au shell carriers has great promising of developing into multifunctional system including imaging, targeting and tunable drug delivery owing to not only the potential in MR imaging of magnetic core but also well-established surface with adaptive targeting molecules of Au shell, even the proved biocompatibility whether it is Au or Fe3O4 nanoparticle. In the future, a complete bionano platform will be built up.
Tsai, Bo-Kai y 蔡博凱. "Synthesis and Multi-photon Absorption Properties of Various Conjugated Chromophores Using Pyrazinoindenocarbazole, Tetra(thiophenyl)benzene, Thienopyrazine and Quinoxanline as the Central Core Units". Thesis, 2015. http://ndltd.ncl.edu.tw/handle/d232rs.
Texto completo國立中央大學
化學學系
104
Several conjugated systems with heterocyclic aromatic rings introduced as the π-centers including isomeric pyrazinoindenocarbazole, tetrathiophenyl benzene, anthratetrathiophene, thienopyrazine, and quinoxaline have been designed and synthesized to investigate their linear and nonlinear optical properties. Some useful structure-property relationships are revealed form our preliminary results: [1] For the pyrazinoindenocarbazole-cored chromophore system, the orientation of the fused heterocyclic rings plays an essential role to the molecular two-photon absorption strength. In our case, among the studied two isomeric structures, the one with anti- orm center exhibits superior two-photon absorptivity over the other one. [2] Thiophene could be a useful two-photon absorption promoting unit if it is correctly incorporated. It is found that the analogous dendritic structures with free and fused thiophene units as part of π-centers exhibit drastically different two-photon absorption strength. [3] In quinoxaline (benzopyrazine)- and thienopyrazine-cored system, it is found that thienopyrazine is an effective two-photon absorption band shifter. On the other hand, the substitution pattern in quinoxaline- cored chromophores play an important role to the molecular two-photon absorption, In addition, ethynyl unit is found to be an effective linkage to promote two-photon activity.
Lin, ShuYu y 林書玉. "Synthesis and Mesomorphic Behavior of Discotic Liquid Crystals with a 1,2,4,5-Tetraynylbenzene Core and Various Highly Conjugated Bending Rods with 2-Phenylethynyl-5-ethynyl-thiophene Units". Thesis, 2002. http://ndltd.ncl.edu.tw/handle/97647122075363000820.
Texto completo淡江大學
化學學系
90
Hexaynylbenzene compounds have been shown to be promising for use in improving the viewing angle of LC displays. For exploring new discotic nematic liquid crystal materials, a new series of 1,2,4,5-tetraynylbenzene derivatives was designed and synthesized to surpass the hexa-ynyl analogue.Direct coupling of 1,2,4,5-tetraiodobenzene with 4’-hydroxy-4-ethynyl biphenyl, followed by alkylation with alkyl bromides yielded a series of 1,2,4,5-tetrakisbiphenylethynylbenzene compounds of disc-like shape. As evidenced by DSC and POM studies, all showed solely a nematic phase except for decyloxyl analog, in which an additional smectic phase appeared. For straight chain derivatives, the lower melting point of 127.7 ℃ and the broader mesophase range of 87.3 ℃ were found for the shorter chain length analog(C8). Most importantly, the crystallization temperature was significantly lowered to 68 ℃ with a 15 ℃ enlargement of the liquid crystal range by introducing chiral side chains.In the second series, mesogens with elongated π-conjugated calamitic cores were developed and their absorption and luminescence properties were studied. Two units of 2-phenylethynyl-5-ethynylthiophene were assembled with or without linkers. Without any linker, a nematic mesophase from 110 ℃ to 157.6 ℃ was found. Insertion of a thiophene ring linking at it’s 2,5-positions, extended the mesophase range for extra 7 ℃. Furthermore, when a bithiophene unit was used as the linker, an additional smectic phase was also observed. Interestingly, introduction of a benzene ring linking at it’s 1,3-positions or insertion of a trans-Pt(PEt3)2 moiety made the mesophase to disappear.
Lorenz, Nicole. "Application of the Duality Theory: New Possibilities within the Theory of Risk Measures, Portfolio Optimization and Machine Learning". Doctoral thesis, 2011. https://monarch.qucosa.de/id/qucosa%3A19760.
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