Dissertations / Theses on the topic 'AFNM'
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Cooper, Katherine. "AFM and C-AFM Studies of GaN Films." VCU Scholars Compass, 2005. http://scholarscompass.vcu.edu/etd/1246.
Full textChristoffersen and Henrik. "Mikrostrukturen i valset kobber." Thesis, Risoe National Laboratory, 1997. http://www.risoe.dk/rispubl/AFM/kobber.htm.
Full textCandido, Renato. "Combinação afim de algoritmos adaptativos." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/3/3142/tde-29062009-113546/.
Full textIn order to improve the performance of adaptive filters, the combination of algorithms is receiving much attention in the literature. This method combines linearly the outputs of two filters operating in parallel with different step-sizes to obtain an adaptive filter with fast convergence and reduced excess mean squared error (EMSE). In this context, it was proposed an affine combination of two least-mean square (LMS) filters, whose mixing parameter is not restricted to the interval [0, 1]. Hence, the affine combination is a generalization of the convex combination. In this work, the affine combination of two LMS algorithms is extended to the supervised algorithms NLMS (normalized LMS) and RLS (recursive least squares), and also to blind equalization, using the constant modulus algorithm (CMA). A steady-state analysis of the affine combination of the considered algorithms is presented in a unified manner, assuming white or colored inputs, and stationary or nonstationary environments. Through the analysis, it was observed that the affine combination of two algorithms of the same family can provide a 3 dB EMSE gain in relation to its best component filter and consequently in relation to the convex combination. To ensure that the combined estimate is at least as good as the best of the component filters, three new algorithms to adapt the mixing parameter were proposed and analyzed. Using the analysis results of these algorithms in conjunction with the results of the transient analysis of adaptive filters, the transient behavior of the affine combination was analyzed. Through simulations, a good agreement between analytical and experimental results was always observed. In the blind equalization case, a combination of two CMA equalizers with different initializations was also proposed. The simulation results suggest that the affine combination can avoid local minima of the constant modulus cost function.
Sanchez, Luis Florial Espinoza. "Singularidades de curvas na geometria afim." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/55/55135/tde-07102010-145223/.
Full textIn this work we study the geometry of the affine evolute and the affine normal curve associated with a plane curve without inflections from the type of singularity of affine support functions. The main result is setting if \'\\gamma\' is a flat curve without inflections, satisfying certain conditions generic then, if p is a point of the affine evolute of \'\\gamma\' at \'s IND. 0\' then two cases: if \'\\gamma\' (\'s IND. 0\') is a sextactic point then locally in p the affine evolute is diffeomorphic to a cusp at \'R POT. 2\', otherwise locally in p the affine evolute is diffeomorphic to a straight in \'R POT. 2\', and second if p = \'\\gamma\' (\'s IND. 0\') is a point of the affine normal curve then two cases: if \'\\gamma\'(\'s IND. 0\') is a parabolic point of \'\\gamma\' then locally in p the affine normal curve is diffeomorphic to a cusp at \'R POT. 2\' , in otherwise locally in p the affine normal curve is diffeomorphic to a line in \'R POT. 2\'
Rossell, Jacqueline. "Protein immobilisation for AFM." Thesis, University of Nottingham, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.404144.
Full textDario, Alan de Genaro. "Processos de Cox com intensidade difusiva afim." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/45/45133/tde-01052013-111713/.
Full textThis Thesis deals with the Cox Process when its intensity belongs to a family of affine diffusions. The form of the probability density function of the Cox process is obtained when the density is described by an arbitrary d-dimensional affine diffusion. Coupling and convergence results are also addressed for a general Cox process with affine intensity. We adopted the Feller diffusion for driving the underlying intensity of the Cox Process to illustrate our results. Additionally the parameters of the underlying intensity processes are estimated by means of the Kalman Filter in conjunction with Quasi-Maximum Likelihood estimation.
Souza, Walfredo Jose de. "Fun??o afim: teoria e aplica??es." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/18664.
Full textIn this work we present a proposal to contribute to the teaching and learning of affine function in the first year of high school having as prerequisite mathematical knowledge of basic education. The proposal focuses on some properties, special cases and applications of affine functions in order to show the importance of the demonstrations while awaken student interest by showing how this function is important to solve everyday problems
Neste trabalho desenvolvemos uma proposta para contribuir com o ensino e aprendizagem das Fun??es Afins no primeiro ano do Ensino M?dio tendo como pr?-requisito o conhecimento matem?tico da educa??o b?sica. A proposta concentra-se em algumas propriedades, casos particulares e aplica??es das Fun??es Afins com o objetivo de mostrar a import?ncia das demonstra??es e ao mesmo tempo despertar o interesse do aluno mostrando como esta fun??o ? importante para solucionar problemas do cotidiano
JUNIOR, AFFONSO DE CUSATIS. "RAYCASTING INTERVALAR DE SUPERFÍCIES IMPLÍCITAS COM ARITMÉTICA AFIM." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1999. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=2766@1.
Full textEste trabalho investiga a técnica mais natural para a visualização de superfícies implícitas, o raycasting, sob um tratamento intervalar. São implementados algoritmos robustos para o raycasting de superfícies genéricas, utilizando métodos intervalares e métodos numéricos convencionais no cálculo das interseções, e é testada a utilização de aritmética afim (AA), um modelo numérico para o cálculo com intervalos proposto como alternativa à aritmética intervalar tradicional (IA). Projetada para evitar o problema de explosão de erro em longas seqüências de cálculos intervalares, AA leva em consideração as correlações entre os termos de uma expressão e define operações mais caras que IA, mas fornece resultados mais precisos, o que pode acelerar alguns algoritmos intervalares.
Sargeant, Anliy Natsuyo Nashimoto. "Módulos tipo Verma sobre álgebra TKK afim estendida." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/45/45131/tde-21072007-114130/.
Full textThe extended affine TKK Lie algebras belong to a class of Lie algebras called extended affine Lie algebras of type $A_1$. They are obtained from a semilattice on $\\mathbbR^n$. We studied the structure of the Verma type modules for the extended affine TKK algebra obtained from a semi-lattice (non-lattice) on $\\mathbbR^2$. Fixing a set of positive isotropic roots called standard we found four orbits of the Borel subalgebra each of which give distinct Verma modules for the extended affine TKK algebra. We studied the structures of their submodules and found a criteria for irreducibility for the classic and imaginary Verma modules.
Lima, Rivaneide Antonia de 1977, Tânia 1953 Baier, and Universidade Regional de Blumenau Programa de Pós-Graduação em Ensino de Ciências Naturais e. Matemática. "Dificuldades dos alunos no estudo da função afim /." reponame:Biblioteca Digital de Teses e Dissertações FURB, 2015. http://www.bc.furb.br/docs/DS/2015/360434_1_1.pdf.
Full textCom.: Produto educacional: Caderno para o professor: atividades contextualizadas para o estudo da função afim.
Dissertação (Mestrado em Matemática) - Universidade Regional de Blumenau, Centro de Ciências Exatas e Naturais, Programa de Pós-Graduação em Ensino de Ciências Naturais e Matemática, Blumenau,
Lee, Sunyoung S. M. Massachusetts Institute of Technology. "Chemical functionalization of AFM cantilevers." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/34205.
Full textIncludes bibliographical references (p. 47-52).
Atomic force microscopy (AFM) has been a powerful instrument that provides nanoscale imaging of surface features, mainly of rigid metal or ceramic surfaces that can be insulators as well as conductors. Since it has been demonstrated that AFM could be used in aqueous environment such as in water or various buffers from which physiological condition can be maintained, the scope of the application of this imaging technique has been expanded to soft biological materials. In addition, the main usage of AFM has been to image the material and provide the shape of surface, which has also been diversified to molecular-recognition imaging - functional force imaging through force spectroscopy and modification of AFM cantilevers. By immobilizing of certain molecules at the end of AFM cantilever, specific molecules or functionalities can be detected by the combination of intrinsic feature of AFM and chemical modification technique of AFM cantilever. The surface molecule that is complementary to the molecule at the end of AFM probe can be investigated via specificity of molecule-molecule interaction.
(cont.) Thus, this AFM cantilever chemistry, or chemical functionalization of AFM cantilever for the purpose of chemomechanical surface characterization, can be considered as an infinite source of applications important to understanding biological materials and material interactions. This thesis is mainly focused on three parts: (1) AFM cantilever chemistry that introduces specific protocols in details such as adsorption method, gold chemistry, and silicon nitride cantilever modification; (2) validation of cantilever chemistry such as X-ray photoelectron spectroscopy (XPS), AFM blocking experiment, and fluorescence microscopy, through which various AFM cantilever chemistry is verified; and (3) application of cantilever chemistry, especially toward the potential of force spectroscopy and the imaging of biological material surfaces.
by Sunyoung Lee.
S.M.
Subedi, Laxmi P. "AFM Tip-Graphene-Surface Interactions." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1291144388.
Full textHegrová, Veronika. "Aplikace korelativní AFM/SEM mikroskopie." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-402580.
Full textAndersen, Christopher. "The construction of carbon nanotube AFM probes for high resolution AFM of novel biological systems." Thesis, University of Nottingham, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421480.
Full textTozo, Fábio Luiz Dias. "Tarefas exploratórias-investigativas para a aprendizagem de função afim." Universidade Federal de São Carlos, 2016. https://repositorio.ufscar.br/handle/ufscar/7800.
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The objective of this work was to verify the difficulties of treatments and conversions (natural language, algebraic expressions, tables and graphical form) function of teaching-learning in order to students of the first high school grade of a private school in the city Sorocaba - SP. The study was conducted by means of tasks implemented in three stages; a group of twenty-six students, divided into thirteen doubles. Therefore, we took care to put to task steps, different forms of representation. The theoretical framework was marked in the study of semiotic representation registers, developed by Raymond Duval, and exploratory and investigative tasks, which served also based on the proposal to diversify the methodological procedures used in the teaching function in order. The written production analysis of research subjects sought answer how students of the first high school series have mobilized and coordinated semiotic representation registers in solving exploratory-investigative tasks involving the concept of affine function? The articulation of exploratory-investigative tasks, with the mobilization and coordination of semiotic representation registers, instigated the students to the process of generalization of the concept and characterization of affine function through the use of natural language record in the form of justification. The objective of this work was to verify the difficulties of treatments and conversions (natural language, algebraic expressions, tables and graphical form) function of teaching-learning in order to students of the first high school grade of a private school in the city Sorocaba - SP. The study was conducted by means of tasks implemented in three stages; a group of twenty-six students, divided into thirteen doubles. Therefore, we took care to put to task steps, different forms of representation. The theoretical framework was marked in the study of semiotic representation registers, developed by Raymond Duval, and exploratory and investigative tasks, which served also based on the proposal to diversify the methodological procedures used in the teaching function in order. The written production analysis of research subjects sought answer how students of the first high school series have mobilized and coordinated semiotic representation registers in solving exploratory-investigative tasks involving the concept of affine function? The articulation of exploratory-investigative tasks, with the mobilization and coordination of semiotic representation registers, instigated the students to the process of generalization of the concept and characterization of affine function through the use of natural language record in the form of justification.
O objetivo desta dissertação foi verificar as dificuldades de tratamentos e conversões (língua natural, expressões algébricas, tabelas e forma gráfica) de ensino-aprendizagem da função afim aos alunos da primeira série do Ensino Médio de uma escola particular na cidade Sorocaba - SP. O trabalho foi desenvolvido, por meio de tarefas aplicadas em três etapas; junto a uma turma com vinte e seis alunos, divididos em treze duplas. Para tanto, tomou-se o cuidado de se colocar nas etapas das tarefas, diferentes formas de representação. O referencial teórico foi pautado no estudo dos registros de representação semiótica, desenvolvido por Raymond Duval, e das tarefas exploratório-investigativas, as quais serviram também de base na proposta de se diversificar os procedimentos metodológicos utilizados no ensino de função afim. A análise da produção escrita dos sujeitos da pesquisa buscou responder; Como alunos da primeira série do Ensino Médio mobilizaram e coordenaram registros de representação semiótica na solução de tarefas exploratórias-investigativas envolvendo o conceito de função afim? A articulação das tarefas exploratórias-investigativas com a mobilização e coordenação dos registros de representação semiótica instigaram os alunos ao processo de generalização do conceito e caracterização da função afim, por meio do uso do registro da língua natural na forma de justificativas.
Araújo, Wellington Alves de. "O GeoGebra : uma experimentação na abordagem da função afim." Pós-Graduação em Ensino de Ciências e Matemática, 2014. https://ri.ufs.br/handle/riufs/5081.
Full textA presente pesquisa tem como objetivo geral investigar possibilidades de situações de aprendizado da Matemática de conceitos relativos às funções polinomiais do 1º grau (Função Afim) com alunos da 1ª série do Ensino Técnico de Nível Médio Integrado do IFS Campus São Cristóvão fazendo uso de uma Sequência Didática mediada pelo uso de um software de geometria dinâmica, o GeoGebra. Para tanto, foi realizado um estudo, pautado nas ideias de Machado (2008), Pais (2011) e Oliveira (2013), embasados na Engenharia Didática discutida por Artigue (1996) com duas turmas da 1ª Série do curso Técnico de Nível Médio Integrado do Instituto Federal de Educação, Ciência e Tecnologia de Sergipe Campus São Cristóvão/SE, que formaram os grupos de estudo que denominamos de Grupo com o experimento (GCE) e Grupo sem o experimento (GSE). Ao término da experiência ficou constatado que o GCE apresentou melhores resultados do que o GSE. Os dados indicaram que utilizar um software de geometria dinâmica em um ambiente de geometria dinâmica proporciona uma grande interação entre os participantes constituindo um fator positivo ao aprendizado, uma vez que facilitam a construção de novos conceitos, proporcionam a comparação entre as diferentes formas de representação de uma função, possibilitando, assim, condições para o participante de reconhecer a representação gráfica de uma função polinomial do primeiro grau como uma reta, expressar a relação entre os coeficientes da equação da reta com sua representação gráfica e algébrica.
Constantinidis, Clisthenis Ponce [UNESP]. "Simetrias e sólitons do modelo de toda conforme afim." Universidade Estadual Paulista (UNESP), 1993. http://hdl.handle.net/11449/132773.
Full textNesta tese fazemos um estudo das teorias de campo de Toda clássicas em duas dimensões. Primeiramente é mostrado que uma classe destas teorias, mais especificamente, os modelos de Toda Afim (AT) constituem uma versão dos modelos de Toda Conforme Afim (CAT) num determinado gaugeda simetria conforme. Este resultado permite con- struir, para cada solução dos modelos AT, um número infinito de soluções do modelo CAT correspondente. Soluções do tipo sóliton são construídas para os modelos AT a partir do método de Hirota, formulado de maneira recursiva, e uma nova classe delas é obtida graças a dois tipos de degenerescências que aparecem nesta abordagem perturbativa. Conhecidas as soluções e a relação entre as teorias AT e CAT é possível encontrar uma fórmula univer- sal para as massas dos sólitons do modelo AT associados a todas as álgebras de Lie simples. Suas cargas topológicas também são determinadas. Simetrias não lineares, associadas às álgebras W, dos modelos CAT também são estu- dadas, sendo proposta uma maneira de se construir uma torre infinita de geradores dessas simetrias a partir de campos de spins 1 e 2. Finalmente é estabelecida uma relação da álgebra de tais geradores com a álgebra 'ômega IND. 'infinito' dos difeomorfismos que preservam a área
In this Thesis we study the Classical Toda Field Theories in t.vvo dimeiisions. It is first shown that a class of these theories, more specificall}', the Affine Toda Models (AT) constitute a gauge fixed version (of the conformai symmetry) of the Conformai Affine Toda Models (CAT) and this result permits one to obtain from each solution of the AT model, an infinite number of Solutions of the corresponding CAT model. Solutions of soliton type for the AT models are built using Hirota's method formula.ted in a recursive way. and a new class of them are obtained thanks to new kinds of degeneracies which appear in this perturbative approach. Once the Solutions and the relationship between the AT and CAT models are known, it is possible to íind a universal formula for the soliton masses of the AT models, associated to all simple Lie algebras. Their topological charges are determined too. Non linear symmetries, associated to W algebras, for the CAT models are studied.A construction of an infinite tower of generators of such symmetries from spin 1 and spin 2 fields is proposed. It is finally established an algebraic relation of such generators with the 'ômega IND. 'infinito' area preserving diffeomorfism algebra
Constantinidis, Clisthenis Ponce. "Simetrias e sólitons do modelo de toda conforme afim /." São Paulo, 1993. http://hdl.handle.net/11449/132773.
Full textBanca: Hugo Horácio Torriani
Banca: Walter Felipe Wreszinski
Banca Francisco Castilho Alcarás
Banca: José Geraldo Pereira
Resumo: Nesta tese fazemos um estudo das teorias de campo de Toda clássicas em duas dimensões. Primeiramente é mostrado que uma classe destas teorias, mais especificamente, os modelos de Toda Afim (AT) constituem uma versão dos modelos de Toda Conforme Afim (CAT) num determinado "gauge"da simetria conforme. Este resultado permite con- struir, para cada solução dos modelos AT, um número infinito de soluções do modelo CAT correspondente. Soluções do tipo sóliton são construídas para os modelos AT a partir do método de Hirota, formulado de maneira recursiva, e uma nova classe delas é obtida graças a dois tipos de degenerescências que aparecem nesta abordagem perturbativa. Conhecidas as soluções e a relação entre as teorias AT e CAT é possível encontrar uma fórmula univer- sal para as massas dos sólitons do modelo AT associados a todas as álgebras de Lie simples. Suas cargas topológicas também são determinadas. Simetrias não lineares, associadas às álgebras W, dos modelos CAT também são estu- dadas, sendo proposta uma maneira de se construir uma torre infinita de geradores dessas simetrias a partir de campos de spins 1 e 2. Finalmente é estabelecida uma relação da álgebra de tais geradores com a álgebra 'ômega IND. 'infinito' dos difeomorfismos que preservam a área
Abstract: In this Thesis we study the Classical Toda Field Theories in t.vvo dimeiisions. It is first shown that a class of these theories, more specificall}', the Affine Toda Models (AT) constitute a "gauge" fixed version (of the conformai symmetry) of the Conformai Affine Toda Models (CAT) and this result permits one to obtain from each solution of the AT model, an infinite number of Solutions of the corresponding CAT model. Solutions of soliton type for the AT models are built using Hirota's method formula.ted in a recursive way. and a new class of them are obtained thanks to new kinds of degeneracies which appear in this perturbative approach. Once the Solutions and the relationship between the AT and CAT models are known, it is possible to íind a universal formula for the soliton masses of the AT models, associated to all simple Lie algebras. Their topological charges are determined too. Non linear symmetries, associated to W algebras, for the CAT models are studied.A construction of an infinite tower of generators of such symmetries from spin 1 and spin 2 fields is proposed. It is finally established an algebraic relation of such generators with the 'ômega IND. 'infinito' area preserving diffeomorfism algebra
Doutor
von, Flach Rodrigo Aguiar. "Variedade com Conexão Afim e Estruturas Geométricas Não-Assiciativas." Instituto de Matemática, 2012. http://repositorio.ufba.br/ri/handle/ri/19495.
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Este trabalho tem como principal objetivo apresentar a teoria alg ebrica n~aoassociativa que pode ser dada as variedades dotadas de uma conex~ao a m. Nesta teoria, denominada Geometria N~ao-associativa, podemos destacar os nomes de Lev V. Sabinin, e Alexander I. Nesterov. Apresentaremos este estudo tanto no caso suave quanto discreto realizando pequenas altera c~oes com o objetivo de simpli car a compreens~ao e a intui c~ao geom etrica do objeto em quest~ao.
Sonnenberg, Lars. "AFM-basierte Desorption einzelner oberflächenadsorbierter Polyelektrolyte." Diss., lmu, 2007. http://nbn-resolving.de/urn:nbn:de:bvb:19-76109.
Full textFilip-Boar, Diana. "AFM-CSLM microrheology of aggregated emulsions." Enschede : University of Twente [Host], 2006. http://doc.utwente.nl/56171.
Full textGröger, Roland. "Nanokontaktdrucken mit AFM-gesteuert phasenseparierten Blockcopolymerschichten." Karlsruhe Forschungszentrum Karlsruhe, 2006. http://d-nb.info/986521612/34.
Full textFILHO, HENRIQUE DUARTE DA FONSECA. "METALLIC NANOSTRUCTURE FABRICATION BY AFM LITHOGRAPHY." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2004. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=6061@1.
Full textNesta dissertação de mestrado, nós desenvolvemos um processo de litografia baseado na técnica de microscopia de força atômica. O estudo do processo de litografia aqui utilizado inicia-se com a deposição e caracterização de filmes finos de sulfeto de arsênio amorfo (a-As2S3) em substratos de silício e a deposição de uma camada metálica de alumínio, utilizada como máscara, sobre a superfície do a-As2S3. O microscópio de força atômica é utilizado para escrever os padrões de forma controlada na camada metálica, e para tal, a influencia dos parâmetros de controle do microscópio na realização da litografia foi analisada. Para a transferência do padrão litografado realiza-se um posterior processo de fotossensibilização e dissolução química do a-As2S3 com uma solução de K2CO3. Após a dissolução, uma camada de ouro foi depositada por erosão catódica DC, seguido de uma nova dissolução, desta vez com NaOH resultando na transferência de nanoestruturas de Au para o substrato de silício.
In this dissertation, we have developed a lithography process based on the atomic force microscopy of technique. The study of the lithography process starts with the deposition and characterization of amorphous arsenic sulfide thin films (a-As2S3) in silicon substrates and the deposition of a metallic aluminum layer, used as mask, on the surface of the a-As2S3. An atomic force microscope was used to write patterns in a controlled way on the metallic layer. Therefore, the influence of microscope feedback system on the accomplishment of the lithography was analyzed. In order to transfer the lithographed pattern to a silicon substrate, the a- As2S3 was exposed to a UV light source and was dissolved with a K2CO3 solution. Then, a thin gold layer was deposited by sputtering DC, and a new dissolution, now with NaOH was performed, leading to the deposition of Au nanostructures onto the silicon substrate.
Podgaynyy, Nikolay [Verfasser]. "AFM-Untersuchungen auf Elektrodenoberflächen / Nikolay Podgaynyy." Bonn : Universitäts- und Landesbibliothek Bonn, 2013. http://d-nb.info/1044971282/34.
Full textRudnicki, Kamil. "MOSFET transistor fabrication on AFM tip." Thesis, University of Glasgow, 2014. http://theses.gla.ac.uk/5398/.
Full textAlves, Marcela Guerrini. "Realização de campos livres de álgebras de Kac-Moody afim." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/45/45131/tde-29092017-114301/.
Full textThe main purpose of this work is to study the irreducible modules of affine Kac-Moody algebras,according to [7].In particular, the localization technique was applied to the imaginary Verma modules of affine Lie algebra A(1)1, with the purpose to obtain new irreducible modules of this algebra. According to[8] and [6], it is the same as to apply the localization technique to the first realization of free fields of A(1)1.To achieve the purpose, we introduced the Kac-Moody algebras, having the main focus the af-fine Kac-Moody algebras, according to [14]. Following, we defined the Verma modules, highlighting imaginary Verma modules of affine Lie algebra A(1)1, according to [8].
Scano, Fabio Correa. "Função afim: uma sequência didática envolvendo atividades com o geogebra." Pontifícia Universidade Católica de São Paulo, 2009. https://tede2.pucsp.br/handle/handle/11403.
Full textSecretaria da Educação do Estado de São Paulo
In the preliminary studies held, mainly, in the bibliographic review, it was observed that many essays show learning difficulties that students from different levels of education have regarding the study of the affine function. Wanting to broaden the studies held before to this respect and aware that the theme still needs research, it was considered by hypothesis for this study that a teaching sequence conceived to the light of the Theory of Didactic Situations and to the Theory of Semiotics Representation Registers, mediated by the use of a software of dynamic geometry, the Geogebra, it might contribute for an indication to the study of the affine function. The purpose of this research was to develop a teaching sequence to start the study with 9th graders that contributed to the development of the capability of expressing algebraically and graphically the dependence of the two variants from an affine function and acknowledge that its graphical representation is a straight line, relating the coefficients from the straight line equation with the graphic. After the elaboration, the a priori analysis of the sequence and the application in the 9th grade of a private school from the Great São Paulo, the a posteriori analysis showed that our hypothesis was confirmed, this means, that a sequence developed and applied based on the Theory of Didactic Situations and on the register change of the representation leads 9th graders to acknowledge that the graphic of an affine function is a straight line and the majority to express algebraically and graphically the relation between the two variants of an affine function, besides relating the straight line equation coefficients to the graphical representation of the affine function
Nos estudos preliminares realizados, sobretudo, na revisão bibliográfica, observou-se que muitos trabalhos constatam dificuldades de aprendizagem que alunos de diferentes níveis de escolaridade apresentam em relação ao estudo da função afim. Com intuito de ampliar os estudos já realizados a esse respeito e conscientes de que o tema ainda carece de pesquisas, considerou-se por hipótese deste estudo que uma sequência de ensino concebida à luz da Teoria das Situações Didáticas e da Teoria dos Registros de Representações Semióticas, mediada pelo uso de um software de geometria dinâmica, o Geogebra, poderá contribuir para uma iniciação ao estudo da função afim. O objetivo da pesquisa foi desenvolver uma sequência de ensino para iniciar o estudo com alunos do 9º ano do Ensino Fundamental que contribuísse para o desenvolvimento da capacidade de expressar algébrica e graficamente a dependência de duas variáveis de uma função afim e reconhecer que seu gráfico é uma reta, relacionando os coeficientes da equação da reta com o gráfico. Após a elaboração, a análise a priori da sequência e a aplicação na turma de 9º ano do E.F. de uma escola particular da Grande São Paulo, a análise a posteriori mostrou que nossa hipótese foi confirmada, isto é, que uma sequência desenvolvida e aplicada com base na Teoria das Situações Didáticas e na mudança de registros de representação conduz alunos do 9º ano a reconhecer que o gráfico de uma função afim é uma reta e a maioria a expressar algébrica e graficamente a relação entre duas variáveis de uma função afim, além de relacionar os coeficientes da equação da reta com a representação gráfica da função afim
Boschetto, Viviane Cristina [UNESP]. "Função afim e suas propriedades através da resolução de problemas." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/138524.
Full textAs dificuldades de aprendizagem com relação à matemática tem sido crescente nas salas de aula. Isso tem motivado a busca de metodologias de ensino para motivar os alunos e garantir a aprendizagem. Neste trabalho foi proposta uma sequência didática para ensinar os conceitos relacionados à função afim com uso da metodologia de resolução de problemas e do programa computacional Geogebra. Essa sequência foi desenvolvida com os alunos da primeira série do ensino médio e os resultados apresentados. Trabalhar esses conceitos através da resolução de problemas tornou o aluno mais autônomo na formação do seu conhecimento e a aprendizagem foi verificada através de diferentes resoluções dos problemas e uma participação ativa dos mesmos em sala de aula. A experimentação com o uso das tecnologias fez com que os alunos gerassem conjecturas e verificassem os resultados obtidos
Learning difficulties with respect to mathematics has been growing in classrooms. This has motivated the search for teaching methods to motivate students and make the learning. In this paper we propose a didactic sequence to teach concepts related to function in order to use the problem-solving methodology and Geogebra computer program. This sequence was developed with students of the first grade of secondary school and the results presented. These concepts work by solving problems become the most autonomous student in training their knowledge and learning was verified by various resolutions of problems and active participation of them in the classroom. Experimentation with the use of technologies has made students generate conjectures and checked the results
Boschetto, Viviane Cristina. "Função afim e suas propriedades através da resolução de problemas /." São José do Rio Preto, 2015. http://hdl.handle.net/11449/138524.
Full textBanca: Flavia Sueli Fabiani Marcatto
Banca: Tatiana Miguel Rodrigues
Resumo: As dificuldades de aprendizagem com relação à matemática tem sido crescente nas salas de aula. Isso tem motivado a busca de metodologias de ensino para motivar os alunos e garantir a aprendizagem. Neste trabalho foi proposta uma sequência didática para ensinar os conceitos relacionados à função afim com uso da metodologia de resolução de problemas e do programa computacional Geogebra. Essa sequência foi desenvolvida com os alunos da primeira série do ensino médio e os resultados apresentados. Trabalhar esses conceitos através da resolução de problemas tornou o aluno mais autônomo na formação do seu conhecimento e a aprendizagem foi verificada através de diferentes resoluções dos problemas e uma participação ativa dos mesmos em sala de aula. A experimentação com o uso das tecnologias fez com que os alunos gerassem conjecturas e verificassem os resultados obtidos
Abstract: Learning difficulties with respect to mathematics has been growing in classrooms. This has motivated the search for teaching methods to motivate students and make the learning. In this paper we propose a didactic sequence to teach concepts related to function in order to use the problem-solving methodology and Geogebra computer program. This sequence was developed with students of the first grade of secondary school and the results presented. These concepts work by solving problems become the most autonomous student in training their knowledge and learning was verified by various resolutions of problems and active participation of them in the classroom. Experimentation with the use of technologies has made students generate conjectures and checked the results
Mestre
Schonardie, Belissa. "Modelagem Matemática e introdução da função afim no ensino fundamental." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/32422.
Full textThe main goal of this dissertation is to describe a proposal for teaching affine functions to first year classes of the third education cycle (equivalent to seventh grade of elementary school), through the application of Mathematical Modeling inserted on a research scenario and understood as a learning environment. It also aims to determine the pertinence of working the referred subject with students from the involved age group. The class under analysis was, during the time of the proposal deployment, part of the Elementary City School, located in the city of Porto Alegre, Brazil. Concerning the theoretical framework, the study was primarily substantiated on the concepts of Mathematical Modeling, as defined by Barbosa (2001), Biembengut (2000) and Skovsmose (2000). The methodology chosen for the research process was the case study. For the model development, the work with the students was based on a research about cell phone plans offered by mobile operators from the state of Rio Grande do Sul, with the goal of finding out which one of them offers the most advantageous proposal, according to the customer’s needs. During the meetings, transitions among learning environments as defined by Skovsmose (2000), as well as among different cases as proposed by Barbosa (2001) took place. The students’ performance during classes and their results obtained at the end of the sequence of activities demonstrated that the implemented proposal is valid and proper for the age group under analysis, and that through Mathematical Modeling there is a better comprehension of the Mathematic subjects involved in the work. As a final product, there is still the material developed during the course of work, which can be used in the future for teachers who desire to make use of similar activities in their classes.
Turner, Ian James. "AFM investigations of critical interactions in the Bacillus primosome and Cryogenic AFM : a new tool for structural biology." Thesis, University of Nottingham, 2006. http://eprints.nottingham.ac.uk/10188/.
Full textMege, Fabrice. "AFM à contact résonant : développement et modélisation." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00618676.
Full textHugel, Thorsten. "Towards Synthetic Molecular Motors Interfaced by AFM." Diss., lmu, 2003. http://nbn-resolving.de/urn:nbn:de:bvb:19-8157.
Full textKufer, Stefan. "AFM-basierte Assemblierung biomolekularer Bausteine auf Festkörperoberflächen." Diss., lmu, 2008. http://nbn-resolving.de/urn:nbn:de:bvb:19-96805.
Full textRivera, Ahlin Alexander. "Noise squeezing and parametricamplication in dynamic AFM." Thesis, KTH, Tillämpad fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-225974.
Full textRieger, Johannes. "AFM manipulation of damping in nanomechanical resonators." Diss., Ludwig-Maximilians-Universität München, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-159621.
Full textSamsuri, Fahmi B. "Single Cell analysis using AtomicForce Microscopy (AFM)." Thesis, University of Canterbury. Electrical and Computer Engineering, 2010. http://hdl.handle.net/10092/5516.
Full textPearson, Anita P. "AFM investigation of single molecule force measurements." Thesis, University of Nottingham, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.441016.
Full textElkaseh, Akram Abdulsalam. "Fabrication of Josephson junctions using AFM nanolithography." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5421.
Full textDissertation presented for the degree of Doctor of Philosophy in Engineering at the University of Stellenbosch
ENGLISH ABSTRACT: Planar weak link structures, such as micro-bridges, variable thickness bridges and nanobridges, have always attracted a lot of attention. Their potential to behave as real Josephson elements make them useful devices, with numerous applications. Powerful techniques, such as focused ion-beam and electron-beam lithography, were successfully used and are well understood in planar weak link structure fabrication. In this dissertation the results of an experimental study on planar weak link structures are presented. For the first time these structures have been successfully fabricated using AFM nanolithography on hard high-temperature superconducting YBCO tracks, where diamond coated silicon tips were used as a ploughing tool. Superconducting YBCO thin films were deposited on different substrates, using inverted cylindrical magnetron sputtering. The films were used to fabricate micro-bridges, variable thickness bridges and nano-bridges, by using conventional photolithography, argon ion-beam milling and AFM nanolithography. The measured I-V characteristics of the fabricated micro-bridges (width down to 1.9 µm), variable thickness bridges (thickness down to 15 nm) and nano-bridge (width down to 490 nm) showed well defined DC and AC Josephson effect characteristics. For better understanding of the behaviour of these types of weak links, critical current versus temperature measurements, and magnetic field modulation of the critical current measurements, were also performed, with the results and discussions given inside the chapters. The major challenges that were experienced in the laboratory during the fabrication processes and the operation of the fabricated devices are also discussed, with the solutions given where appropriate.
AFRIKAANSE OPSOMMING: Swak-skakel vlakstrukture, soos mikrobr.ue, br.ue met veranderlike dikte en nanobr.ue, het nog altyd baie aandag getrek. Hul het die potensiaal om soos werklike Josephson-elemente te kan funksioneer en is, as gevolg hiervan, nuttige toestelle met veelvuldige toepassings. Kragtige tegnieke, soos gefokuste ioonstraal- en elektronstraal litografie, is suksesvol gebruik en word goed verstaan in die vervaardiging van swak-skakel vlakstrukture. In hierdie proefskrif word die resultate van ¡¦n eksperimentele studie van swak-skakel vlakstrukture voorgel.e. Vir die eerste keer is hierdie strukture suksesvol vervaardig, deur gebruik te maak AFMnanolitografie op harde, ho¡Le-temperatuur supergeleier YBCO (Yttrium Barium Koperoksied) spore, waar diamantbedekte silikonpunte gebruik is as ploeginstrument. ¡¦n Dun lagie van supergeleidende YBCO is op verskillende substrate gedeponeer, deur gebruik te maak van omgekeerde silindriese magnetron verstuiwing. Die dun lagies is gebruik in die vervaardiging van mikrobr.ue, br.ue met veranderlike dikte en nanobr.ue, deur die gebruik van gewone fotolitografie, argon-ioonstraal frees en AFM nanolitografie. Die gemete I-V eienskappe van die vervaardigde mikrobr.ue (met breedte so laag as 1.9 µm), veranderlike-dikte br.ue (dikte tot 15 nm) en nanobr.ue (breedte so min as 490 nm) toon goed gedefinieerde GS en WS eienskappe van die Josephson-effek. Ten einde die gedrag van hierdie tipes swak-skakels beter te kan verstaan, is metings gedoen van kritieke stroom teenoor temperatuur, asook magnetiese veld modulasie van die kritieke stroom. Hierdie resultate en besprekings daarvan word binne die toepaslike hoofstukke aangebied. Die grootste uitdagings wat in die laboratorium, sowel as met die toetsing van die vervaardigde toestelle ondervind is, word ook bespreek. Waar moontlik, word toepaslike oplossings voorgestel.
Pavelec, Jiří. "Vývoj lineárního posuvu pro UHV STM/AFM." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229812.
Full textJang, Chang-Hyun. "AFM-Assisted Nanofabrication using Self-Assembled Monolayers." Diss., Virginia Tech, 2003. http://hdl.handle.net/10919/11103.
Full textPh. D.
Neugirg, Benedikt R., Sean R. Koebley, Hannes C. Schniepp, and Andreas Fery. "AFM-based mechanical characterization of single nanofibres." Royal Society of Chemistry, 2016. https://tud.qucosa.de/id/qucosa%3A36361.
Full textSwinford, Richard William. "An AFM-SIMS Nano Tomography Acquisition System." PDXScholar, 2017. https://pdxscholar.library.pdx.edu/open_access_etds/3485.
Full textClausen, Bjoern, and risoe@risoe dk. "Characterisation of polycrystal deformation by numerical modelling and." Thesis, Risoe National Laboratory, 1999. http://www.risoe.dk/rispubl/AFM/ris-r-985.htm.
Full textAnjos, DamiÃo Moreira dos. "AplicaÃÃes das funÃÃes afim e quadrÃtica na educaÃÃo para o trÃnsito." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16786.
Full textEste trabalho de conclusÃo de curso (TCC), visa propor uma alternativa de ensino na Ãrea de matemÃtica atravÃs de aplicaÃÃes das funÃÃes afins e quadrÃticas na educaÃÃo para o trÃnsito, ao mesmo tempo em que se adequa ao Projeto de Reforma do Ensino MÃdio, estabelecido pela Lei no 9394/96. Trabalhando com disciplinas tradicionalmente pertencentes aos saberes escolares para os jovens advindos do Ensino Fundamental e contemplando tema transversal proveniente dos ParÃmetros Curriculares Nacionais (PCNs), o referido trabalho visa contribuir com a melhoria da qualidade de ensino na referida disciplina atravÃs da contextualizaÃÃo e preparar o aluno para o Exame Nacional do Ensino MÃdio (ENEM), transformando o mesmo como parte do processo de construÃÃo do conhecimento, colocando a realidade e o cotidiano do aluno como elementos fundamentais, trazendo esse processo como elemento chave para o estudo da disciplina e do tema transversal envolvido nessa Ãrea.
This course conclusion work aims to propose an educational alternative in the field of mathematics through applications of quadratic functions and order in traffic education at the same time that suits the High School Reform Project by Law No. 9394/96. Working with traditionally belonging to the school knowledge disciplines for young people arising from the elementary school and contemplating cross-cutting issue from the National Curriculum Parameters, said work aims to contribute to improving the quality of education in that discipline through contextualization and prepare the student the National High School Exam, turning it as part of the knowledge construction process by putting reality and the daily life of the student as fundamental elements, bringing this process as a key element for the study of discipline and cross-cutting theme involved in this area.
Silva, João Paulo Arruda da. "Funções afim e quadrática com auxílio do multiplano e blocos cúbicos." Universidade Federal da Paraíba, 2014. http://tede.biblioteca.ufpb.br:8080/handle/tede/7532.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
This paper presents a new way of discussing concepts involving function, a ne function and quadratic function. Through simple activities with the use of blocks of cubes, and the multiplane software such as GeoGebra, students will move from a passive position, as simple listener, the active member of the teaching-learning process, enabling them to acquire a broader notion the concept of function and apply it later in solving problems in school and in their daily lives. Besides these diversi ed activities, topics that are usually not given prominence in most books of high school such that the analysis of the canonical form of the quadratic function and the theorem of characterization of a ne function will play an important role in developing what is expected of students about this important area of mathematics. All activities were conducted with 1st grade students of high school Natalicia Maria Figueiroa da Silva, located in the city of Surubim, in the state of Pernambuco.
Este trabalho apresenta uma nova maneira de se discutir conceitos envolvendo função, função a m e função quadrática. Através de atividades simples com uso dos blocos de cubos, do multiplano e de softwares como o Geogebra, o aluno passará de uma posição passiva, como simples ouvinte, a integrante ativo do processo de ensino-aprendizagem, possibilitando ao mesmo adquirir uma noção mais ampla do conceito de função e aplicá- lo posteriormente na resolução de problemas na escola e em sua vida cotidiana. Além dessas atividades diversi cadas, tópicos que geralmente não são colocados em destaque na maioria dos livros de ensino médio tais quais a análise da forma canônica da função quadrática e o Teorema de caracterização da função a m terão um importante papel no desenvolvimento que se espera dos estudantes a respeito dessa importante área da Matemática. Todas as atividades foram desenvolvidas com alunos da 1a série do ensino médio da Escola Estadual Natalícia Maria Figueiroa da Silva, localizada na cidade de Surubim no Estado de Pernambuco.
Pauletti, Miguel Sebastian. "Parametric AFEM for geometric evolution equations and coupled fluid-membrane interaction." College Park, Md.: University of Maryland, 2008. http://hdl.handle.net/1903/8603.
Full textThesis research directed by: Dept. of Mathematics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
Inforzato, Adriana de Campos. "Aproximação de conexão afim para constantes elásticas de cristais líquidos nemáticos." Universidade Estadual de Londrina. Centro de Ciências Exatas. Programa de Pós-Graduação em Física, Universidade Estadual de Maringá, 2007. http://www.bibliotecadigital.uel.br/document/?code=vtls000125774.
Full textIn this paper, the a.ne connection approach will be defined in terms of a local transformation. Accordingly, the macroscopic anisotropy of the nematic medium will be conceived as resulting from a local transformation where, at each point of the sample, the spherical molecules of an idealized hypothetic isotropic liquid have their shape changed to the ellipsoidal form of the nematic liquid crystals molecules. When such a local character is imposed to this transformation, the patterns determined by the director configuration of the nematic medium acquire an intrinsic curvature whose correct treatment requires the replacement of the techniques and methods of the usual calculus by those of the di.erential geometry of non-flat surfaces. Such approach will be used in the calculus of the nematic elastic constants. As a result, the dependence of the elastic constants on the scalar order parameter, on the eccentricity of the nematic molecules and on the interaction between them will be determined and compared with the experimental data.
Anjos, Damião Moreira dos. "Aplicações das funções afim e quadrática na educação para o trânsito." reponame:Repositório Institucional da UFC, 2015. http://www.repositorio.ufc.br/handle/riufc/16332.
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This course conclusion work aims to propose an educational alternative in the field of mathematics through applications of quadratic functions and order in traffic education at the same time that suits the High School Reform Project by Law No. 9394/96. Working with traditionally belonging to the school knowledge disciplines for young people arising from the elementary school and contemplating cross-cutting issue from the National Curriculum Parameters, said work aims to contribute to improving the quality of education in that discipline through contextualization and prepare the student the National High School Exam, turning it as part of the knowledge construction process by putting reality and the daily life of the student as fundamental elements, bringing this process as a key element for the study of discipline and cross-cutting theme involvedin this area.
Este trabalho de conclusão de curso (TCC), visa propor uma alternativa de ensino na área de matemática através de aplicações das funções afins e quadráticas na educação para o trânsito, ao mesmo tempo em que se adequa ao Projeto de Reforma do Ensino Médio, estabelecido pela Lei no 9394/96. Trabalhando com disciplinas tradicionalmente pertencentes aos saberes escolares para os jovens advindos do Ensino Fundamental e contemplando tema transversal proveniente dos Parâmetros Curriculares Nacionais (PCNs), o referido trabalho visa contribuir com a melhoria da qualidade de ensino na referida disciplina através da contextualização e preparar o aluno para o Exame Nacional do Ensino Médio (ENEM), transformando o mesmo como parte do processo de construção do conhecimento, colocando a realidade e o cotidiano do aluno como elementos fundamentais, trazendo esse processo como elemento chave para o estudo da disciplina e do tema transversal envolvido nessa área.
Gamsjaeger, Roland. "AFM and SPR on biological systems applying atomic force microscopy (AFM) and surface plasmon resonance (SPR) to biologically important systems." Saarbrücken VDM Verlag Dr. Müller, 2007. http://d-nb.info/988909820/04.
Full text