137 resultados para Trace form


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Pós-graduação em Filosofia - FFC

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

In this paper, we deal with the research of a vibrating model of an energy harvester device, including the nonlinearities in the model of the piezoelectric coupling and the non-ideal excitation. We show, using numerical simulations, in the analysis of the dynamic responses, that the harvested power is influenced by non-linear vibrations of the structure. Chaotic behavior was also observed, causing of the loss of energy throughout the simulation time. Using a perturbation technique, we find an approximate analytical solution for the non-ideal system. Then, we apply both two control techniques, to keep the considered system, into a stable condition. Both the State Dependent Ricatti Equation (SDRE) control as the feedback control by changing the energy of the oscillator, were efficient in controlling of the considered non-ideal system.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Azo dyes are extensively used for coloring textiles, paper, food, leather, drink, pharmaceutical products, cosmetics and inks. The textile industry consumes the largest amount of azo dyes, and it is estimated that approximately 10 - 15% of dyes used for coloring textiles might be lost in waste streams. Almost all azo dyes are synthetic and resist biodegradation, however, they can be readly reduced by a number of chemical and biological reducing systems. Biological treatment is advantageous over physical and chemical method as result of its low cost and little disturbance to the environment. This research focuses on the utilization of Aspergillus oryzae, to remove some kinds of azo dyes from aqueous solutions. The fungi, physically induced in its paramorphogenic form (called, pellets), were used in the dyes biosorption studies with both non autoclave and autoclaved hyphas, at differents pH values. Thus the goals are the removal of dyes by biosorption and the decrease of its toxicity.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

A natureza complexa e dinâmica que caracteriza a prática de ensinar na educação infantil requer que o professor reflita sobre suas próprias ações. Ao fazê-lo mobiliza saberes e sentimentos que estão frequentemente associados com as ações que realiza na sala de aula. Especificamente, o objetivo do presente estudo foi identificar, descrever e analisar, à luz do referencial dos saberes docentes, os desafios, os saberes e os sentimentos vivenciados durante a prática de ensinar de uma professora em formação. Metodologicamente, optou-se por um estudo autoetnográfico, utilizando-se de registros em diário de campo, os quais foram analisados a partir de três descrições distintas – a própria professora, o contexto e a relação entre a professora e o contexto. A “indisciplina” dos alunos e a ausência de estratégias imediatas para enfrentá-la foram os principais resultados encontrados pela professora. Além disso, constatamos a importância da reflexão sobre a própria prática para dar origem a novos saberes pedagógicos. Os saberes experienciais embasaram fortemente as ações da professora na tentativa de resolver os desafios durante a prática. Refletir sobre esses desafios tem sido um exercício que está, a todo o momento, transformando para além da prática, valores e significados pessoais sobre a docência que, até então, pareciam já bem definidos

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Implicit ODE, cubic in derivative, generically has no infinitesimal symmetries even at regular points with distinct roots. Cartan showed that at regular points, ODEs with hexagonal 3-web of solutions have symmetry algebras of the maximal possible dimension 3. At singular points such a web can lose all its symmetries. In this paper we study hexagonal 3-webs having at least one infinitesimal symmetry at singular points. In particular, we establish sufficient conditions for the existence of non-trivial symmetries and show that under natural assumptions such a symmetry is semi-simple, i.e. is a scaling in some coordinates. Using the obtained results, we provide a complete classification of hexagonal singular 3-web germs in the complex plane, satisfying the following two conditions: 1) the Chern connection form is holomorphic at the singular point, 2) the web admits at least one infinitesimal symmetry at this point. As a by-product, a classification of hexagonal weighted homogeneous 3-webs is obtained.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This paper analyzes the process of sorting through the intervening demand survey that reaches the Center for Research and Applied Psychology (CPPA) “Dr. Betti Katzenstein” UNESP Assis. The objective was to better understand the reality of conflicts that people face and, therefore, to characterize the patients who seek help in CPPA. With greater understanding of demand, it is possible to trace more consistent referrals and tailor the service to the school clinic profile of clients that demand. Recalling that the actual attendance of screening is already a form of interventional care, because it provides patient care from first contact. This was a documentary research, which had collected their data sheets of the CPPA trials conducted in 2011. 394 screenings were performed. We present the distribution of the demand for sex, age and complaint that motivated the search for care. It can be concluded that the characterization allows a customer routing more efficient services offered at the institution, as it contributes to a better understanding delineated in each case and a reduced number of dropouts in the screening process.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This work intends to investigate the use of psychoanalytical theory within the aesthetic and critical contemporary art field. To this purpose, it focuses on two philosophers who have become significant in our time: the art critic Hal Foster and the art historian Georges Didi-Huberman. This study aims to show how far the concepts generated in psychoanalytic praxis allowed interpretations that disrupt the traditional aesthetics field. This type of analysis is possible once we abandon the paradigm of “applied psychoanalysis”, which is still current in non-clinical setting. Finally, the proposal wants to argue that the category of the amorphous may clarify certain aesthetic experiences that range from the modernity of art through postmodernity.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

A study was conducted to evaluate the s of dietary inorganic and organic trace minerals in two levels of supplementation regarding performance, diarrhea occurrence, hematological parameters, fecal mineral excretion and mineral retention in metacarpals and liver of weanling pigs. Seventy piglets weaned at 21 days of age with an average initial body weight of 6.70 ± 0.38 kg were allotted in five treatments: control diet (no added trace mineral premix); 50% ITMP (control diet with inorganic trace mineral premix supplying only 50% of trace mineral requirements); 50% OTMP (control diet with organic trace mineral premix supplying only 50% of trace mineral requirements); 100% ITMP (control diet with inorganic trace mineral premix supplying 100% of trace mineral requirements); and 100% OTMP (control diet with organic trace mineral premix supplying 100% of trace mineral requirements). Feed intake and daily weight gain were not affected by treatments, however, piglets supplemented by trace minerals presented better gain:feed ratio. No differences were observed at calcium, phosphorus, potassium, magnesium, sodium and sulfur excreted in feces per kilogram of feed intake. Treatments did not affect calcium, phosphorus, magnesium, sulfur and iron content in metacarpals. Trace mineral supplementation, regardless of level and source, improved the performance of piglets.