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Estudo da previsibilidade de tonalidades na decoração em vidrados transparentes
(Universidade Federal de São Carlos, 2008-12-18) Gibertoni, Claudia; Morelli, Márcio Raymundo; https://lattes.cnpq.br/0172837599844991
This study aimed to streamline the use and provide for the tone in the implementation of the decoration in glazed. The industry of traditional ceramics uses a range of dyes and pigments for the decoration of products. Often, it has sought empirical way of reducing the number of pigments, creating a palette of colors optimized to meet the needs of decorative glazed ceramic, reproducing the largest possible number of shades. The main objective of this work was the development of a methodology to provide a certain tone, even during the stage of the project decorative graphics in place to empiricism, until now very common in the industry of tiles. The work involved, initially, experiments with formulations combining dyes, basic glass and vehicle. A series of dyes, dosing methods, industrial paints, reproduced paints in laboratory and commercial products, as well graphic print were evaluated. The dyes were physico-chemical characterized and in addiction the resulting glazes were characterized by the colour of reflectance with spectrophotometer, creating a database of chromatic coordinates (L*, a* and b*). Different colour models, such as RGB (digital image), CMYK (graphic print) and CIE- L*a*b* (ceramic sample) were compared. Based on the database and Kubelka-Munk Theory, a series of calculation were made to adjust the product tonalities to the foreseen tonalities and the captured image. The results showed that some colours presented higher deviation than those obtained in the case of the monitor, paper and sample, specially the black and green. No linear behavior was observed with the addition of the dyes. The evaluation of the dosing method of the dyes (weight percent or volume percent), showed no difference between them. The calculation for the foreseen tonalities showed that the Kubelka-Munk Theory is difficult to be applied for transparent and semi-transparent glazes.
Aplicação de redes neurais artificiais no setor de transportes no Brasil
(Universidade Federal de São Carlos, 2008-12-18) Corrêa, Fernanda; Raia Junior, Archimedes Azevedo; https://lattes.cnpq.br/6413793013018019; https://lattes.cnpq.br/6290382658321885
The development of Artificial Neural Networks in the Brazilian´s Sector of Transports comes carrying through great done in what it refers to the promotion of the use of the technique in the solution of problems found in this area. Artificial Neural Networks are computational techniques with capacity to simulate the cerebral activity human being, making future forecasts from the analysis of data. This technique, throughout the years comes greatly stimulating the research in planning of transports in such a way in the exterior how much in Brazil. As objective, this work brings an exploratory research, trying to lift the state of the art of the use and application of the technique Artificial Neural Networks in the Section of Transports in Brazil, drawing a comparison of what has been accomplished at the developed countries and in Brazil. In Brazil, the ANNs had started to be developed in the Sector of Transports for return of the years of 1990, today, the research in this area is generating important works very for the planning of transports, however, the technique of Artificial Neural Networks still has much to be improved better to be used as administrative tools in the country.
Piauí: brasilidade e memória no jogo discursivo contemporâneo
(Universidade Federal de São Carlos, 2008-12-18) Carvalho, Pedro Henrique Varoni de; Sargentini, Vanice Maria Oliveira; https://lattes.cnpq.br/1406919572611392
Supported on Discourse Analysis theoretical references derived from Michel Pêcheux and on the discourse studies proposed by Michel Foucault and Jean-Jacques Courtine, the research aims at following and evaluating the first thirteen editions of Revista piauí, whose first number was released in October, 2006, and at recognizing in this publication the installation of a discursive occurrence. As a hypothesis, we have guided ourselves by the fact that Revista piauí proposes a disruption in contemporary reading practices, which are sometimes characterized by the predominance of pictures and utilization of short objective texts that are addressed to readers who have little time to inquire. Against this order, piauí resists e defines itself as a magazine for those who like to read. The magazine proposes the retaking of literary journalism, which is characterized by long authorial reports. Methodologically, we have selected the linguistic regularities in order to identify the discursive formation the magazine has adopted. We have analyzed, based upon the notion of discursive genre proposed by Bakhtin style, compositional structure and thematic content , the genre subversions and their effects of meaning. In addition, we have also tried to identify Revista piauí resistance fields on themes, language, reading practices. We have considered the concept of resistance as according to Michel Foucault: there is not any single power in society, but a relation of powers and resistances. From this relation among powers and resistances, we have tried to identify the presence of the interdiscourse the discursive memory that penetrates through the new publication. piauí has adopted a 1960 s resistance journalism, which was mainly symbolized by O Pasquim, a weekly publication that reflected Southern Rio de Janeiro city lifestyle. Considering that the nomination piauí refers to the smallest and poorest state of Brazilian Federation and that the new magazine title comes from a Tupi-Guarani-originated expression, some final conclusions assign to the magazine an anthropophagous approach that makes piauí spread Brazility files, and the magazine irruption is linked with a feasible place for the Brazilian experience in the actual context.
Método para análise interna das organizações : uma abordagem a partir da Resource-Advantage Theory
(Universidade Federal de São Carlos, 2008-12-18) Rossi, Ricardo Messias; Silva, Andrea Lago da; https://lattes.cnpq.br/7803210668880380
Managers use strategic planning in order to design the ways to get the organizational goals. In a competitive environment the organizations aim to overcome their competitors and to obtain superior financial performance. In order to reach this superior financial performance, the organizations manage their resources so as they can obtain a position of competitive advantage in the marketplace. Thus, the resource management is an important activity in the organizations and the internal analysis is a process that can support this activity. Methods and frameworks to support strategic analyses are no novelty in the business environment. In different intensities these structures of analyses are built up from theoretical knowledge and concepts. In this thesis it is proposed a set of steps to facilitate the strategic competitive planning of organizations. This set of steps was turned into a managerial framework of organizations internal analysis, using the Resource-Advantage Theory as theoretical basis. Thus, the main goal of this thesis was to develop a method, departing from the resource concept, for internal analysis of companies that are embedded in a context of market competition. Exploratory and qualitative research was carried out. Departing from literature review related to the theme, a preliminary method of internal analysis was built then validated and improved by means of collected data from field research. The field research consisted of six case studies with companies working in the area of agrochemicals industry in Brazil. The final version of the internal analysis method is made of six steps. The study contributes theoretically by discussing several concepts related to the Resource-Based Theory and the Resource-Advantage Theory. As a result, the study proposes a way of operationalization of the resource concept (that is a gap observed by some authors). Managerially speaking, the study contributes by providing the administrators with a method of analysis that supports decisions related to organizational resources management.
Caracterização de mutantes de Streptomyces clavuligerus ATCC 27064 obtidos por aplicação de radiação UV e tratamento químico
(Universidade Federal de São Carlos, 2008-12-18) Vasconcelos, Eliton da Silva; Hokka, Carlos Osamu; https://lattes.cnpq.br/4092185365457795
The clavulanic acid is a powerful inhibitor of the beta-lactamases produced by bacterias resistants to penicillin and cefalosporin. This acid is produced industrially by strains of Streptomyces clavuligerus in complex medium whose carbon and nitrogen source are supplied by inexpensive substances that provide high production. The clavulanic acid has a high affinity for enzymes that attach to penicillin derivatives, what enable to be used with semi-synthetic penicillin, being the combination with amoxilin the best exemple of substances inhibitor of beta-lactamases. The genetic improvement using physical and chemical agents is a necessary strategy in programs of production of bioactive metabolit whereas the industrial strains lost its productivity due phenomenon of genetic instability. In this work it appraised morphologic and biochemistry characteristic of some mutant strains obtained by treatment with UV light and with MMS, always comparing the caracteristics of the mutants with the wild type (Streptomyces clavuligerus ATCC 27064). The results indicated that the mutations originated strains with differents phenotypes, and the larger changes were demonstrated through mutants strains AC116, MMS 150 and MMS 54, that exhibited absence of pigmentation in its mature spores. The strains MMS 150 presented a larger production of AC when cultured in semisynthetics mediums. Among the others mediums the wild type strain obtained a larger production, however when used the modifed complex medium, the MMS 150 strain showed changes in its lipolitic activity and a larger production of AC.