O público com necessidades especiais está cada vez mais inserido na rede regular de ensino público. Para que a inclusão de fato ocorra são necessárias ações em diferentes áreas do conhecimento. A acessibilidade da escola perpassa a infraestrutura arquitetônica, os livros, os professores, o transporte e todos os produtos necessários para viabilizar o cotidiano de um deficiente. De acordo com o censo escolar do Ministério da Educação (BRASIL, 2006), 79,65% dos estudantes com necessidades especiais são Pessoas em Cadeiras de Rodas (PCR) e foi observado que o mobiliário não é adequado aos alunos nestas condições, que o utilizam precariamente ou o abandonam. Em face desta perspectiva, um dos objetivos deste estudo foi identificar os fatores que levam ao abandono de um recurso assistivo. Neste estudo, através de observações nas escolas públicas e instituições de ensino para público com necessidades especiais, foi realizado um levantamento do mobiliário escolar. Através de uma associação entre os processos de desenvolvimento de produto da área da engenharia, do design e da tecnologia assistiva foi possível traçar uma contribuição para a metodologia de projeto de produto em tecnologia assistiva. Desta forma, proporcionaram-se aportes à metodologia de projeto de produto para o público com necessidades especiais. O foco desta pesquisa foi a superfície de trabalho para PCR no âmbito do ensino público fundamental. A personalização dos produtos para as pessoas com necessidades especiais é um entrave para a produção industrializada, e, assim sendo, a colaboração deste estudo indica um método que procura garantir escala de produção e ao mesmo tempo a customização dos produtos conforme as necessidades do usuário. Para o desenvolvimento desta pesquisa, foram analisados os modelos de mesas utilizados em sala de aula, os modelos propostos por fabricantes, os artigos de pesquisadores que estudaram o tema, a legislação e normas a respeito. A proposta deste estudo foi estabelecer um produto básico ao qual seriam agregados acessórios de acordo com as necessidades e as características biopsicossociais de diferentes usuários. / The group of people with special needs has increasingly been inserted in the regular public school. In order to inclusion occurs in fact actions are necessary in different areas of knowledge. The accessibility of the school permeates the architectural infrastructure, books, teachers, transportation and all the products necessary to make the daily life of a disabled person. According to the school census of the Ministry of Education (MEC, BRAZIL, 2006), 79.65% of students with special needs are people in wheelchairs and it was observed that the furniture is not appropriate for the students in these conditions, who use it poorly or drop it out. Given this perspective, one of the objectives of this study was to identify the factors that lead to the abandonment of assistive devices. In this study, through observation in public schools and educational institutions to the public with special needs, a survey of school furniture was developed. Through an association among the processes of product development for the engineering, design and assistive technology, it was possible to delineate a contribution to the methodology for product design in assistive technology realm. Thus, contributions were provided to the methodology for product design to the people with special needs. The focus of this research was the work surface for people in wheelchairs in the public elementary schools. The customization of products for people with special needs is an impediment to industrial production, and therefore, the cooperation of this study indicates a method that seeks to ensure the scale of production while customizing the products according to the users’ needs. For the development of this study, it was analyzed the models of tables used in the classroom, the models proposed by manufacturers, articles by researchers that studied the subject, legislation and related regulations. The purpose of this study was to establish a base product, to which accessories would be aggregated according to the bio-psychosocial needs and characteristics of different users.

O público com necessidades especiais está cada vez mais inserido na rede regular de ensino público. Para que a inclusão de fato ocorra são necessárias ações em diferentes áreas do conhecimento. A acessibilidade da escola perpassa a infraestrutura arquitetônica, os livros, os professores, o transporte e todos os produtos necessários para viabilizar o cotidiano de um deficiente. De acordo com o censo escolar do Ministério da Educação (BRASIL, 2006), 79,65% dos estudantes com necessidades especiais são Pessoas em Cadeiras de Rodas (PCR) e foi observado que o mobiliário não é adequado aos alunos nestas condições, que o utilizam precariamente ou o abandonam. Em face desta perspectiva, um dos objetivos deste estudo foi identificar os fatores que levam ao abandono de um recurso assistivo. Neste estudo, através de observações nas escolas públicas e instituições de ensino para público com necessidades especiais, foi realizado um levantamento do mobiliário escolar. Através de uma associação entre os processos de desenvolvimento de produto da área da engenharia, do design e da tecnologia assistiva foi possível traçar uma contribuição para a metodologia de projeto de produto em tecnologia assistiva. Desta forma, proporcionaram-se aportes à metodologia de projeto de produto para o público com necessidades especiais. O foco desta pesquisa foi a superfície de trabalho para PCR no âmbito do ensino público fundamental. A personalização dos produtos para as pessoas com necessidades especiais é um entrave para a produção industrializada, e, assim sendo, a colaboração deste estudo indica um método que procura garantir escala de produção e ao mesmo tempo a customização dos produtos conforme as necessidades do usuário. Para o desenvolvimento desta pesquisa, foram analisados os modelos de mesas utilizados em sala de aula, os modelos propostos por fabricantes, os artigos de pesquisadores que estudaram o tema, a legislação e normas a respeito. A proposta deste estudo foi estabelecer um produto básico ao qual seriam agregados acessórios de acordo com as necessidades e as características biopsicossociais de diferentes usuários. / The group of people with special needs has increasingly been inserted in the regular public school. In order to inclusion occurs in fact actions are necessary in different areas of knowledge. The accessibility of the school permeates the architectural infrastructure, books, teachers, transportation and all the products necessary to make the daily life of a disabled person. According to the school census of the Ministry of Education (MEC, BRAZIL, 2006), 79.65% of students with special needs are people in wheelchairs and it was observed that the furniture is not appropriate for the students in these conditions, who use it poorly or drop it out. Given this perspective, one of the objectives of this study was to identify the factors that lead to the abandonment of assistive devices. In this study, through observation in public schools and educational institutions to the public with special needs, a survey of school furniture was developed. Through an association among the processes of product development for the engineering, design and assistive technology, it was possible to delineate a contribution to the methodology for product design in assistive technology realm. Thus, contributions were provided to the methodology for product design to the people with special needs. The focus of this research was the work surface for people in wheelchairs in the public elementary schools. The customization of products for people with special needs is an impediment to industrial production, and therefore, the cooperation of this study indicates a method that seeks to ensure the scale of production while customizing the products according to the users’ needs. For the development of this study, it was analyzed the models of tables used in the classroom, the models proposed by manufacturers, articles by researchers that studied the subject, legislation and related regulations. The purpose of this study was to establish a base product, to which accessories would be aggregated according to the bio-psychosocial needs and characteristics of different users.

O principal objetivo deste trabalho foi investigar as bases teóricas da metodologia de projeto, compreender sua evolução inicial e a influência de outras áreas nesse processo. Teve também como objetivo, descrever os primeiros métodos sistemáticos, presentes entre 1962 a 1973, os confrontado com as teorias presentes no referencial teórico. Isso foi feito através da análise de citações das seis primeiras obras publicadas sobre o tema somado ao registro da primeira conferência sobre métodos de projeto de 1962, criando uma base de dados de 1330 referências bibliográficas. O estudo identifica os principais campos que influenciaram os métodos, centrados em uma abordagem de sistemas. Além disso, revela uma lista de trabalhos e autores que precederam as publicações sobre métodos de projeto e que podem ser considerados os primórdios de um pensamento projetual. Essa lista, que pode ser considerada a principal contribuição do trabalho, foi feita através de técnicas de bibliometria, como a co-citação e o acoplamento bibliográfico, aliadas a análise de redes fazendo o cruzamento entre os autores, unindo dados quantitativos a uma análise qualitativa, esse resultado é contextualizado em uma linha do tempo e em um quadro histórico. Por fim é feita uma reflexão sobre a evolução e as tendências atuais e futuras da metodologia de projeto. / The main aim of this work was to investigate the theoretical bases of design methodology, understand their early evolution and the influence of other fields in this process. Had also aimed to describe the first systematic methods, present from 1962 to 1973, and confronting it with the theories present in the theoretical framework. This was done through citation analysis of the first six books published on the subject added to the published papers of the 1962 first conference on design methods, creating a database of 1330 references. The study identifies core fields that influenced the methods, focusing on a systems approach. Moreover, it shows a list of works and authors that preceded the publications on design methods and can be considered the beginnings of design thinking. The list, which can be considered the main contribution of the research was done through bibliometric techniques such as co-citation and bibliographic coupling, combined with network analysis making the crossing between the authors combining quantitative data with qualitative analysis, this results is contextualised into a time line and in a historical frame. At last was made a reflection about the evolution, current trends, and future of design methodology.

Orientador: Maria Gabriela Caffarena Celani / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo / Made available in DSpace on 2018-08-13T14:27:02Z (GMT). No. of bitstreams: 1 Righi_ThalesAugustoFilipini_M.pdf: 12172867 bytes, checksum: 95a936523ecbb4577960d49d6bf62103 (MD5) Previous issue date: 2009 / Resumo: O uso de displays interativos introduz novas possibilidades de participação e interação entre os componentes de uma equipe no processo projetual em arquitetura, em suas diversas fases. O presente estudo se concentra em duas questões. A primeira etapa da pesquisa consistiu em uma revisão da bibliografia sobre a importância do desenho no processo de projeto. Em seguida foi realizado um levantamento das tecnologias disponíveis que permitem produzir esboços manuais diretamente em formato digital. Dentre essas tecnologias, duas foram escolhidas para o desenvolvimento da parte experimental da pesquisa: a lousa interativa e a mesa digitalizadora opaca. A etapa experimental da pesquisa teve inicio com um estudo piloto para avaliar a potencialidade e a interação dos equipamentos com os alunos. Em seguida a metodologia sofreu alterações em função dos resultados preliminares e um novo experimento foi realizado no segundo semestre de 2008, nesse experimento pode-se obter resultados que auxiliaram a descrever benefícios e deficiências do uso de displays interativos no processo de projeto. Espera-se que a pesquisa propicie a inserção de meios digitais no ensino de projeto de arquitetura e reformule a dinâmica atual do atelier de projeto convencional / Abstract: The use of interactive displays introduces new possibilities for participation and interaction between components of a team in the design process of architecture in various stages. The present study started with the identification of the difficulties in sharing information that design teams have to deal with during presential meetings. The study has focused on two issues. The first stage of the research consisted of a review of the literature about the importance of collaboration in the design process. Next, a survey of the available technologies that allow the production of manuals sketches directly in digital format was performed. Among these technologies, two were chosen for the development of an experimental research: an electronic whiteboard and an opaque tablet. The experimental stage of research began with a preliminary study to assess the capabilities of the equipment. The initial methodology was adjusted, according to the preliminary results, and a new experiment was performed in the second semester of 2008. This experiment allowed to obtain results that describe the benefits and shortcomings of the use of interactive displays during the design process. The present research is expected to contribute to the integration of digital media in design education and to help reformulating the dynamics of the architectural design studio / Mestrado / Arquitetura e Construção / Mestre em Engenharia Civil

Submitted by Paola Damato (repositorio@mackenzie.br) on 2016-04-14T16:38:55Z No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Paola Lazzareschi Nese.pdf: 32173985 bytes, checksum: f38f94c2a9c36601c495158dde245dd8 (MD5) / Made available in DSpace on 2016-04-14T16:38:55Z (GMT). No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Paola Lazzareschi Nese.pdf: 32173985 bytes, checksum: f38f94c2a9c36601c495158dde245dd8 (MD5) Previous issue date: 2015-08-06 / This work has as study object fifteen school buildings projects in the public elementary school system, produced by architects Benno Perelmutter and Marciel Peinado for the metropolitan area and the state of São Paulo. Inserted in the line of research design methodology, aims to understand the set of characteristics that make up the projects of buildings and analyze the solutions adopted by architects. To achieve the proposed objectives were carried out bibliographic and documentary research on school architecture, as well as analysis of current conditions of public schools, especially in relation to existing infrastructure and its on demand service capacity. The study project has expanded knowledge on the subject and helped to establish essential criteria for the analysis of complex features of the design process. The development of the project research methodology was based on the process AQUA criteria and assessment procedures applied by Henry Sanoff, with emphasis on the following themes: local, implementation, architectural program and building system. The study showed that the graphics used are important aid tools for reading and discussion of existing spatial conditions. For each of the issues, opportunities for improvement were formulated for the process design as motivation for the adoption of new design practices, in order to promote school architecture. The results should also serve to further research, aimed at the continuous development of public schools in São Paulo. / Esta dissertação tem como objeto de estudo quinze projetos de edifícios escolares da rede pública do ensino fundamental, produzidos pelos arquitetos Benno Perelmutter e Marciel Peinado para a região metropolitana e o interior do Estado de São Paulo. Inserida na linha de pesquisa da metodologia de projeto, tem como objetivo compreender o conjunto de características que compõem os projetos dos edifícios e analisar as soluções adotadas pelos arquitetos. Para alcançar os objetivos propostos foram realizadas pesquisas bibliográficas e documentais sobre a arquitetura escolar, assim como a análise das condições atuais da rede pública de ensino, principalmente com relação à infraestrutura existente e sua capacidade de atendimento à demanda. O estudo dos projetos ampliou o conhecimento no tema e contribuiu para estabelecer critérios essenciais para a análise das características complexas do processo de projeto. O desenvolvimento da metodologia de investigação dos projetos foi baseado nos critérios do Processo AQUA e nos procedimentos de avaliação aplicados por Henry Sanoff, com ênfase nos seguintes temas: local, implantação, programa arquitetônico e sistema construtivo. O estudo mostrou que os recursos gráficos utilizados são importantes ferramentas de auxílio para a leitura e discussão das condições espaciais existentes. Para cada um dos temas, foram formuladas oportunidades de melhoria para o processo de projeto como motivação para a adoção de novas práticas de projeto, com o intuito de promover a arquitetura escolar. Os resultados devem também servir para pesquisas futuras, objetivando o desenvolvimento contínuo das escolas públicas no Estado de São Paulo.

Les travaux de thèse présentés se situent dans le contexte de la conception de circuits intégrés en technologie CMOS avancée pour des applications radiofréquence à très faible consommation de puissance. Les circuits sont conçus à travers deux concepts. Le premier est l'utilisation du coefficient d'inversion qui permet de normaliser le transistor en fonction de sa taille et de sa technologie, ceci permet une analyse rapide pour différentes performances visées ou différentes technologies. La deuxième approche est d'utiliser un facteur de mérite pour trouver la polarisation la plus adéquate d'un circuit en fonction de ses performances. Ces deux principes ont été utilisés pour définir des méthodes de conception efficaces pour deux blocs radiofréquence : l'amplificateur faible bruit et l'oscillateur. / Thesis work are presented in the context of the integrated circuits design in advanced CMOS technology for ultra low power RF applications. The circuits are designed around two concepts. The first is the use of the inversion coefficient to normalize the transistor as a function of its size and its technology, this allows a quick analysis for different performances or different technologies. The second approach is to use a figure of merit to find the most appropriate polarization of a circuit based on its performance. These two principles were used to define effective design methods for two RF blocks: low noise amplifier and oscillator.

Our society is dependent on information and the different technologies and artifacts that gives us access to it. However, the technologies we have come to depend on in different aspects of our lives are imperfect and during the past decade, these imperfections have been the target of identity thieves, cyber criminals and malicious persons within and outside the organization. These malicious persons often target networks of organizations such as hospitals, banks and other financial organizations. Access to these networks are often gained by sidestepping security mechanisms of computer-systems connected to the organization’s network. Often, the goal of computer-systems security mechanisms is to prevent or detect threats; or recover from an eventual attack. However, despite huge investments in IT-security infrastructure and Information security, over 95% of banks, hospitals and government agencies have at least 10 malicious infections bypass existing security mechanisms and enter their network without being detected. This has resulted in the loss of valuable information and substantial sums of money from banks and other organizations across the globe. From early research in this area, it has been discovered that the reason why security mechanisms fail is because it is often used incorrectly or not used at all.  Specifically, most users find the security mechanisms on their computers too complicated and they would rather not use it. Therefore, previous research have focused on making computer-systems security usable or simplifying security technology so that they are “less complicated” for all types users, instead of designing computers that are both usable and secure. The problem with this traditional approach is that security is treated as an “add-on” to a finished computer-system design. This study is an attempt to change the traditional approach by adjusting two phases of a computer-system design model to incorporate the collection of usability as well as security requirements. Guided by the exploratory case study research design, I gained new insights into a situation that has shocked security specialists and organizational actors alike. This study resulted in the creation of a methodology for designing usable and secure computer-systems. Although this method is in its rudimentary stage, it was tested using an online questionnaire. Data from the literature study was sorted using a synthesis matrix; and analyzed using qualitative content analysis. Some prominent design and security models and methodologies discussed in this report include User-Centered System Design (UCSD), Appropriate and Effective Guidance for Information Security (AEGIS) and Octave Allegro. / Vårt samhälle är beroende av information och olika tekniker och artefakter som ger oss tillgång till den. Men tekniken vi förlitar oss på i olika aspekter av våra liv är ofullkomliga och under det senaste decenniet, har dessa brister varit föremål för identitetstjuvar, cyberbrottslingar och illvilliga personer inom och utanför organisationen. Dessa illvilliga personer riktar ofta sig till nätverk av organisationer såsom sjukhus, banker och andra finansiella organisationer. Tillgång till dessa nätverk uppnås genom att kringgå säkerhetsmekanismer av datorsystem anslutna till organisationens nätverk.   Målet med datorsystemsäkerhet är att förhindra eller upptäcka hot; eller återhämta sig från eventuella attacker. Trots stora investeringar i IT-säkerhet infrastruktur och informationssäkerhet, över 95 % av banker, sjukhus och myndigheter har minst 10 skadliga infektioner kringgå befintliga säkerhetsmekanismer och träda in i sitt nätverk utan att upptäckas. Detta har lett till förlust av värdefulla informationer och stora summor av pengar från banker och andra organisationer över hela världen. Från tidigare forskning inom detta område, har det visat sig att anledningen till att säkerhetsmekanismer misslyckas beror ofta på att den används på ett felaktigt sätt eller används inte alls. I synnerhet menar de flesta användare att säkerhetsmekanismer på sina datorer är alltför komplicerat. Därför har tidigare forskning fokuserat på att göra datorsystemsäkerhet användbar så att den är "mindre komplicerat" för alla typer av användare, i stället för att designa datorer som både är användbara och säkra. Problemet med detta traditionella synsätt är att säkerheten behandlas som ett "tillägg" till en färdig datorsystemdesign.   Denna studie är ett försök att ändra det traditionella synsättet genom att justera två faser av en datorsystemdesign modell för att integrera insamlingen av användbarhets- samt säkerhetskrav. Styrd av den explorativ fallstudie forskningsdesignen, fick jag nya insikter i en situation som har gäckat säkerhetsspecialister och organisatoriska aktörer. Denna studie resulterade i skapande av en designmetodik för användbara och säkra datorsystem. Även om denna metod är ännu i sin rudimentära fas, testades den med hjälp av en webbenkät. Data från litteraturstudien sorterades med hjälp av en syntesmatris; och analyserades med kvalitativ innehållsanalys. Några framstående design- och säkerhetsmodeller samt metoder som diskuterades i denna uppsats inkludera Användarcentrerad System Design (UCSD), Ändamålsenligt och Effektivt Vägledning för Informationssäkerhet (AEGIS) och Octave Allegro.

La photonique au silicium est une technologie émergente considérée comme l'une des solutions clés pour les interconnexions sur puce de génération future, offrant plusieurs avantages potentiels tels qu'une faible latence de transmission et une bande passante élevée. Cependant, elle reste confrontée à des défis en matière d'efficacité énergétique. Différentes topologies, layout et architectures offrent diverses options d'interconnexion. Ceci conduit à une grande variation des pertes optiques, qui est l'un des facteurs prédominants dans la consommation d'énergie. De plus, les composants photoniques au silicium sont très sensibles aux variations de température. Sous une activité de puces donnée, ceci conduit à une réduction de l’efficacité des lasers et à une dérive des longueurs d'onde des composants optiques, ce qui entraîne un «Bit Error Ratio (BER)» plus élevé et réduit par conséquent l'efficacité énergétique des interconnexions optiques. Dans cette thèse, nous travaillons sur des méthodologies de conception pour les interconnexions photoniques sur silicium économes-en-énergie et prenant en compte la topologie / le layout, la variation thermique et l'architecture. / Silicon photonics is an emerging technology considered as one of the key solutions for future generation on-chip interconnects, providing several prospective advantages such as low transmission latency and high bandwidth. However, it still encounters challenges in energy efficiency. Different topologies, physical layouts, and architectures provide various interconnect options for on-chip communication. This leads to a large variation in optical losses, which is one of the predominant factors in power consumption. In addition, silicon photonic devices are highly sensitive to temperature variation. Under a given chip activity, this leads to a lower laser efficiency and a drift of wavelengths of optical devices (on-chip lasers and microring resonators (MRs)), which in turn results in a higher Bit Error Ratio (BER) and consequently reduces the energy efficiency of optical interconnects. In this thesis, we work on design methodologies for energy-efficient silicon photonic interconnects on chip related to topology/layout, thermal variation, and architecture.

For gas turbines, the demand for high-performance, more efficient and longer-life turbine blades is increasing. This is especially so, now that there is a need for high-power and low-weight aircraft gas turbines. Thus, the search for improved design methodologies for the optimisation of combustor exit temperature profiles enjoys high priority. Traditional experimental methods are found to be too time-consuming and costly, and they do not always achieve near-optimal designs. In addition to the above deficiencies, methods based on semi-empirical correlations are found to be lacking in performing three-dimensional analyses and these methods cannot be used for parametric design optimisation. Computational fluid dynamics has established itself as a viable alternative to reduce the amount of experimentation needed, resulting in a reduction in the time scales and costs of the design process. Furthermore, computational fluid dynamics provides more insight into the flow process, which is not available through experimentation only. However, the fact remains that, because of the trial-and-error nature of adjusting the parameters of the traditional optimisation techniques used in this field, the designs reached cannot be called “optimum”. The trial-and-error process depends a great deal on the skill and experience of the designer. Also, the above technologies inhibit the improvement of the gas turbine power output by limiting the highest exit temperature possible, putting more pressure on turbine blade cooling technologies. This limitation to technology can be overcome by implementing a search algorithm capable of finding optimal design parameters. Such an algorithm will perform an optimum search prior to computational fluid dynamics analysis and rig testing. In this thesis, an efficient methodology is proposed for the design optimisation of a gas turbine combustor exit temperature profile. The methodology involves the combination of computational fluid dynamics with a gradient-based mathematical optimiser, using successive objective and constraint function approximations (Dynamic-Q) to obtain the optimum design. The methodology is tested on three cases, namely: (a) The first case involves the optimisation of the combustor exit temperature profile with two design variables related to the dilution holes, which is a common procedure. The combustor exit temperature profile was optimised, and the pattern factor improved, but pressure drop was very high. (b) The second case involves the optimisation of the combustor exit temperature profile with four design variables, one equality constraint and one inequality constraint based on pressure loss. The combustor exit temperature profile was also optimised within the constraints of pressure. Both the combustor exit temperature profile and pattern factor were improved. (c) The third case involves the optimisation of the combustor exit temperature profile with five design variables. The swirler angle and primary hole parameters were included in order to allow for the effect of the central toroidal recirculation zone on the combustor exit temperature profile. Pressure loss was also constrained to a certain maximum. The three cases show that a relatively recent mathematical optimiser (Dynamic-Q), combined with computational fluid dynamics, can be considered a strong alternative to the design optimisation of a gas turbine combustor exit temperature profile. This is due to the fact that the proposed methodology provides designs that can be called near-optimal, when compared with that yielded by traditional methods and computational fluid dynamics alone. / Thesis (PhD)--University of Pretoria, 2009. / Mechanical and Aeronautical Engineering / unrestricted

During the last few decades, concerns about water shortages and pollution have increased. Consequently, environmental legislations and regulations for wastewater discharge have been issued. The objective of this work was to contribute in developing an efficient dsorbent for removing heavy metal ions from wastewater. The thesis focused on evaluating amine-modified SBA-15 as copper and other heavy metal ions adsorbent, by determining a variety of adsorptive properties with the aim of gaining a deep understanding of its behavior and to outline its advantages and limitations. The influence of synthesis conditions on the mesostructural stability of the resultant materials after different water treatments was systematically investigated. N2 adsorption results indicated that the material prepared via co-condensation and aged at 100 ºC was not stable and lost its ordered mesoporous structure after contacting water even at room temperature. Aging at 130 ºC and addition of inorganic salts resulted in materials that maintained their mesporous structure under different water treatments. The material synthesized in the presence of KCl was used as adsorbent for the rest of the thesis work. It was shown that the structural collapse observed in amine-modified SBA-15 prepared by conventional method when contacted with aqueous solutions is associated with the drying process, and not the treatment itself. This structural collapse was avoided by replacing water with more volatile liquids such as acetone, before drying. Amino-functionalized SBA-15 was tested for the removal of copper ions from aqueous solutions under different temperatures, pH, initial concentrations and agitation speeds. The obtained results indicated that the amino-functionalized SBA-15 was very efficient and equilibrium was achieved in less than 30 min at room temperature. The adsorption capacity increased dramatically with increasing temperature, initial copper concentration and pH. Under suitable conditions, the material exhibited high adsorption capacity even at very low copper concentration. To further investigate the effect of dsorption parameters, a 24 factorial design experiments were used to screen the factors affecting the copper removal efficiency. All the parameters main effects were significant within a 95 % confidence level. Surface composite design was used to develop a reliable model representing the adsorption process. The statistical tests used proved the adequacy of the second order model. Optimization of the factors levels was carried out and the recommended optimum conditions are: copper concentration of 20 mg/L, adsorbent/solution ratio of 1.57 g/L, pH of 6.5, and T = 294 K with 95% copper removal. The effect of regeneration conditions was investigated after three adsorption–desorption cycles, under different batchwise regeneration conditions. Using a composite surface design methodology, the effect of the regeneration conditions on the performance of the adsorbent was investigated. It was found that all the studied parameters have a statistically significant influence on the working dsorption capacity. With respect to structural properties and amine content, none of the factors was found to be significant. Regeneration using EDTA was found to be more efficient than acid treatment. Amino-functionalized SBA-15 was studied as potential absorbent for Cd2 +, Co2 +, Cu2 +, Zn2 +, Pb2 +, Ni2 +, Al3+ and Cr3 +. The adsorption capacity and selectivity of the material were investigated in single and multi-metal solutions. Using very dilute solutions, i.e., 10 ppm, more than 95% of cations were removed, except for Co2+ and Cr3 +, indicatingthe high sensitivity of the current adsorbent. The adsorption capacities in multi-metal solutions were lower than in single-metal ones because of competition between metallic elements for the amine groups. The adsorbent was not affected in the presence of sodium, potassium, and calcium, indicating that the ionic strength does not affect the adsorption properties. Application of this material to remove copper in tap water, river water, and electroplating wastewater was shown to be successful. Dynamic experiments were carried out on the adsorption of copper ions in a laboratory packed-bed of amine-modified SBA-15. Breakthrough curves were analyzed at different flowrates and after two adsorption-desorption cycles. Furthermore, a model based on mass balance was developed and tested for predicting the breakthrough curves under different experimental conditions used. The results suggested that the developed model was in good agreement with the experimental data. Bed regeneration was performed by circulating 0.2 M EDTA solution through the column for 30 min. Résumé Durant les quelques dernières décennies, les préoccupations concernant les pénuries d'eau et la pollution en général ont augmenté. Par conséquent, des législations et des réglementations environnementales pour les rejets d'eaux usées ont été introduites. L'objectif de ce travail était de contribuer au développement d'un adsorbant efficace pour éliminer les ions de métaux lourds des eaux usées. Cette thèse porte sur l'évaluation de SBA-15 modifiée avec des amines comme adsorbant pour le cuivre et d'autres ions de métaux lourds par la détermination d'une multitude de propriétés d'adsorption dans le but d'acquérir une profonde compréhension de son comportement et d’identifier ses avantages et ses limites. L'influence des conditions de synthèse sur la stabilité des matériaux mésoporeux obtenus après différents traitements a été étudié de façon systématique. Les résultats d'adsorption de N2 ont indiqué que le matériel préparé par co-condensation et vieilli à 100 °C n'était pas stable et a perdu sa structure mésoporeuse ordonnée après avoir été en contact avec l'eau même à température ambiante. Le vieillissement à 130 °C, avec ajout de sels inorganiques, a abouti à des matériaux qui ont maintenu leur structure mésoporeuse sous différents traitements en présence d'eau. Le matériau synthétisé en présence de KCl a été utilisé comme adsorbant pour le reste du travail de cette thèse. Il a été démontré que l'effondrement de la structure observé dans la SBA-15 modifiée aux amines, préparée par la méthode conventionnelle en contact avec des solutions aqueuses est associé avec le processus de séchage, et non le traitement lui-même. Cet effondrement de structure a été évité en remplaçant l'eau avec des liquides plus volatils tels que l'acétone, avant le séchage. La SBA-15 amino-fonctionnalisée a été testée pour l'élimination des ions de cuivre des solutions aqueuses à différentes températures, pH, concentrations initiales et vitesses d'agitation. Les résultats obtenus ont indiqué que la SBA-15 amino-fonctionnalisée était très efficace et l'équilibre a été atteint en moins de 30 min à température ambiante. La capacité d'adsorption a considérablement augmenté avec la température, la concentration initiale de cuivre et le pH. Sous des conditions appropriées, le matériau a manifesté une grande capacité d'adsorption, même à des concentrations très faibles en cuivre. Afin d’étudier l'effet des paramètres d'adsorption, un plan factoriel de 24 expériences a été utilisé pour dépister les facteurs affectant l'efficacité d'élimination du cuivre. Tous les effets principaux des paramètres étaient importants à 95% de niveau de confiance. La méthodologie de la surface composite a été utilisée pour développer un modèle fiable qui représente le processus d'adsorption. Les tests statistiques utilisés ont prouvé la pertinence du modèle de second ordre. L’optimisation des niveaux des facteurs a été effectuée et les conditions optimales recommandées sont: la concentration en cuivre de 20 mg/L, le rapport adsorbant/solution de 1.57 g/L, pH de 6.5 et T = 294 K pour l'élimination de 95% de cuivre. L'effet des conditions de régénération a été étudié après trois cycles d'adsorption-désorption, sous différentes conditions de régénération. En utilisant la méthodologie de la surface composite, l'effet des conditions de régénération sur la performance de l'adsorbant a été étudié. Il a été constaté que tous les paramètres étudiés ont une influence statistiquement significative sur la capacité de travail d'adsorption. En ce qui concerne les propriétés structurelles et la teneur en amine, aucun des facteurs n’a été jugé significatif. La régénération à l'aide d'EDTA a été jugée plus efficace que le traitement acide. La SBA-15 amino-fonctionnalisée a été étudiée comme absorbant potentiel de Cd2+, Co2+, Cu2+, Zn2+, Pb2+, Ni2+, Al3+ and Cr3+. La capacité d'adsorption et la sélectivité du matériau ont été étudiées dans des solutions mono- et multi-métalliques. En utilisant des solutions très diluées, soit 10 ppm, plus de 95% de cations ont été enlevés, sauf pour le Co2+ et Cr3+, indiquant la forte sensibilité de l'adsorbant. Les capacités d'adsorption dans les solutions multi-métalliques étaient inférieures à celles des solutions mono-métalliques en raison de la concurrence entre les éléments métalliques pour les groupes amine. L'adsorbant n'a pas été affecté par la présence de sodium, de potassium et de calcium, ce qui indique que la force ionique n'affecte pas les propriétés d'adsorption. L’usage avec succès de ce matériau pour éliminer le cuivre dans l'eau de robinet, l’eau de rivière et les eaux usées de galvanoplastie a été démontré. Des expériences dynamiques ont été réalisées sur l'adsorption des ions de cuivre par la SBA-15 amine-modifiée sur une colonne à lit fixe de laboratoire. Les courbes de perçage ont été analysées à des débits différents et après deux cycles d'adsorption-désorption. De plus, un modèle basé sur le bilan de matière a été développé et testé pour prédire les courbes de perçage sous les différentes conditions expérimentales utilisées. Les résultats suggèrent que le modèle développé est en bon accord avec les données expérimentales. La régénération du lit a été réalisée en faisant circuler une solution EDTA à 0.2 M à travers la colonne pendant 30 min.