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Catalisadores Cu-, Co- ou Fe-ZSM-5 caracterização e avaliação na redução de NO a N2 com hidrocarbonetos na presença ou ausência de vapor de água
(Universidade Federal de São Carlos, 2005-03-04) Fernandes, Juliana Esteves; Urquieta-González, Ernesto Antonio; http://lattes.cnpq.br/2389975677904655
The minimization of the emissions of nitrogen oxides (NOx) in the atmosphere has been one of the great goals in the area of environmental protection. Among the possible processes to treat the NOx, the selective catalytic reduction of NO with hydrocarbons (SCR-HC) has presented important expectations. For this process, the metal/ZSM-5 type catalysts have appropriate levels of conversion in oxidative conditions. In this context, the aim of this work was to prepare Cu, Co and FeZSM-5 catalysts. The samples were characterized by XRD, DRS-UVVIS, FTIR, H2-TPR, SEM and tested in the reduction of NO to N2 with propane or methane in oxidative atmosphere in the presence or absence of water steam. The H2-TPR data showed that the cationic species present in the prepared Cu, Co and FeZSM-5 catalysts, after thermal activation, were mainly Cu2+ (Cuα 2+ e Cuβ 2+), Co2+ and Fe3+ cations located in charge compensation sites in the zeolite, respectively. From FTIR and DRS-UVVIS it was also possible identify oxide species, which were present in a lower content. In the reduction of NO to N2 in the absence of water steam, the CuZSM-5 catalysts showed higher levels of conversion of NO than those based in Co and Fe. However, the FeZSM-5 catalysts showed, in this condition, activity at lower temperatures. This behavior makes them potentially interesting to be applied for practical purposes. On the other hand, in the presence of water steam, it was verified a higher loss of activity of the CuZSM-5 catalyst, which was totally restored removing the water in the feed. For the Co and FeZSM-5 catalysts, the activity loss in the presence of water steam was partially recovered during time on stream.
Elaboração, aplicação e avaliação de um Programa de Ensino de Ginástica Acrobática sob a ótica da inclusão
(Universidade Federal de São Carlos, 2005-03-04) Borella, Douglas Roberto; Denari, Fátima Elisabeth; https://lattes.cnpq.br/5575213011914394
The search for a society more joust represents a great challenge. As for the paradigm of the social inclusion, the necessary school to participate changed ding itself into a space where education for given it if comes back toward all the people. The inclusion of pupils with educational necessities special comes being white of many studies and quarrels. One of the concerns is to know until where this can give certain. Being this the present study it had for objective to evaluate the effect of a program of education of Acrobatic Gymnastics in a group of pupils with light and moderate mental characterized necessities educational special as deficient registered in a municipal school that takes care of to pupils with educational necessities special and pupils of common education, both with age between 08 and 10 years. The procedure consisted of the following stages: 1) elaboration of one Program of education of Acrobatic Gymnastics for lessons of Physical Education; 2) application and evaluation of the Program of Acrobatic Gymnastics; 3) evaluation and reevaluation of the affective-social data. The data had been analyzed on the basis of the comparisons of the repertoires of the pupils before and after the application of the education program. For way of this salient it effectiveness of the Acrobatic Gymnastics for the development of this population, pointing referring subsidies with respect to the systematization of knowledge and procedures to the area of Suitable the Physical Education, aiming at to accumulate of stocks the best performance of the important aspects for the development and learning of the pupil. With this program we aim at the inclusion of our pupils in the scopes of the society and the school as well as its participation in events and activities together to the too much common citizens.
Sobre o modelo de supercondutividade de Ginzburg- Landau com efeito magnético em domínios delgados
(Universidade Federal de São Carlos, 2005-03-04) Pereira, Jamil Viana; Nascimento, Arnaldo Simal do; https://lattes.cnpq.br/6609243657130387; https://lattes.cnpq.br/1641850650875934
Inteligência competitiva a tecnologias do carbeto de silício para o setor de abrasivos
(Universidade Federal de São Carlos, 2005-03-04) Morais, Túlio Lissandro Melo de; Gregolin, José Angelo Rodrigues; https://lattes.cnpq.br/7842651773105125
Because the fact we don t have studies about Silicon Carbide ( SiC ) to abrasives in Brasil, this study sought to accomplish the SiC technological search in abrasives using Competitive Intelligence. The necessity to know the SiC application trends and threat in bonded abrasives in Brasil It was the decision detanier necessity showed by focal company. In addition, it was objective from focal company to know the market and technology about its and your national competition in SiC business. Using the Michael Porter analysis method, it could be observed that the national competitor from focal company has a bargain can biggest in many aspects in SiC chain. The changes involving anti-duping in EUA and Europe will must change the world SiC production scenario in these areas, affecting Brasil. After the intelligence cycle application and the Swot method use, it could be observed that synthetic diamond is one strong threat to SiC. Some abrasives tools already are suffering impact with this substitution of the SiC for the synthetic diamond, like to cutting wheels and grinding wheels and disks to marble, granite, stones and ceramics. To polish, it didn t verified that it will have big changes for the next years, therefore the superabrasives are getting space and it will must be monitored, like proposed in this study with a monitor system. The technological necessity of the sizing process innovation to SiC, to can be more efficiency to produce grains between 80 and 220 in ANSI and FEPA, it was detected because for these grains it won t happen synthetic diamond strong threat in the next years. The SiC micrograins production in the national market is one necessity. Actually it doesn t have enough availability and the actual national micrograins quality isn t so good. The production technology to offer to the market the micrograins in big quantities and with good quality, like humid sedimentation process with Elutriation is proposed and already the focal company has it.
Desempenho de criança de 7 a 10 anos em diferentes tarefas de controle postural
(Universidade Federal de São Carlos, 2005-03-04) Kishi, Marcos Seizo; Tudella, Eloisa; https://lattes.cnpq.br/3207258034860219; https://lattes.cnpq.br/2333440373816942
The aim of this study was to describe the effect of different tasks on the postural control of children aged between 7 and10 years old. Twenty-one children, divided into two age groups of 7-8 and 9-10 years old, participated in the study by performing 5 tests from the Balance Master System. The purpose of the first test was to verify the ratio of weight bearing to the levels of articular stress conferred by different degrees of knees flexion, and, according to ANOVA test, there were no differences either between the groups or among the conditions. Both the second and the fifth tests aimed to verify the influence of sensory cues on the postural control quantified by the sway speed; the former provided somatosensory and visual cues, and the latter, vestibular and visual cues. Kruskal-Wallis statistic test was applied to these two tests, and no differences were found between the groups. However, the groups showed distinct behaviors in relation to the conditions. The second test indicated that the alteration in somatosensory input resulted in maximal instability of the postural control, while the fifth one verified maximal instability when vestibular input was altered. The aim of the third test was to identify the response of the control motor components during the performance of tasks that involve intentional movement of the center of body mass toward the target. The group of 7-8-year-old children showed better performances in Endpoint Excursion (EPE) and Movement Velocity (MV), and it seems to be related to cognitive aspects of the task. The forth test aimed to relate the variables of gait to the maintenance of the stability following its achievement, and, although no differences were found between the groups, it was verified positive correlations between anteroposterior body sway and step width as well as progression velocity. Regarding the postural control, it is possible to conclude that the age influenced the variables EPE and MV, since the age group of 7-8 years old showed better performances. In addition, postural as well as motor control of the children was influenced by sensory cues of the tasks.
Extensões de soluções homogêneas de uma classe de operadores diferenciais parciais reais de ordem um
(Universidade Federal de São Carlos, 2005-03-04) Gabriel, Camila Pires Cremasco; Santos Filho, José Ruidival Soares dos; https://lattes.cnpq.br/6112529384454347