67 research outputs found

    Effect of Organic Matter on Growth of Arabica Coffe (Coffea Arabica) Variety

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    The research was conducted in Maliana, Bobonaro District, Timor Lest to evaluate the effect of using organic matter on the growth of Arabica coffee varieties. The experiment was laid out in a completely randomized design (CRD) with four treatments and three replications. The variables observed were the height of the plant, diameter of the stem, number of leaves, length of root, weight of fresh biological yield, and weight of dry biological yield. The results showed significant differences in agronomic traits in plant height, stem diameter, fresh weight of biological yield and root length. However, we did not detect any difference in the number of leaves or the dry biological yield. The addition of cow manure gave higher yields than ground coffee and wood powder and did not provide organic matter. The application of cow manure resulted in higher yields than the other treatments for all variables, successively plant height (24.63 cm), stem diameter (0.34 cm), number of leaves (12.45 sheet), fresh weight of biological yield (24.36 gr), dry weight of biological yield (12.67 gr) and root length (22.95 cm)

    Análise teórico e experimental de ligações tipo RHS/CHS com afastamento

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    This work presents a study of welded K joints with gap, formed by a structural steel hot rolled hollow section, having rectangular hollow sections at the chords and circular hollow sections in the others members. The study developed theoretical and numerical analyses for the joints, experimental tests in full scale prototypes. Theoretical analyses were performed using code standards for K joints. The results in terms of behavior, ultimate load and collapse mode were analyzed and compared with numerical (finite elements) and theoretical models. The theoretical analysis was carried out from the code regulations. The joints tested indicated the failure mode of Plastic failure of the chord face (mode A). The results showed that the loads using code regulations and the ones from the numerical analysis had good agreement for the K joint.Nesse trabalho, é apresentado um estudo de ligações soldadas tipo K com afastamento, constituídas de barras tubulares de aço sem costura, sendo usada seção transversal tubular retangular, no banzo, e circular, para os outros elementos. O estudo envolveu análise teórica e numérica, para as ligações, além de ensaios de protótipos, em escala real. As análises teóricas utilizaram normas de projeto, para a ligação K. Os ensaios foram realizados, em protótipos, em escala real, visando à obtenção do comportamento, da carga última e do modo de falha da ligação e à calibração com modelo numérico (elementos finitos), bem como visando a se fazer uma comparação com prescrições normativas. Essas ligações ensaiadas apresentaram, como modo de falha, a plastificação da face do banzo (modo A). Os resultados numéricos indicaram que a relação entre as cargas numéricas e as de projeto, obtidas pelas prescrições, apresenta boa correlação, para ligações K.29530

    (I)Migrantes, diversidades e desigualdades no sistema educativo português : balanço e perspectivas

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    O objectivo do presente artigo consiste em procurar transmitir um olhar sociologicamente informado no que concerne à situação portuguesa no domínio das políticas educativas públicas e investigações produzidas relacionadas com o sistema educativo e a (i)migração, ou seja, com a tentativa de construção de uma educação intercultural. Neste sentido, será realizada uma análise descritiva e compreensivo-interpretativa da evolução desta problemática em Portugal desde que a mesma se tornou objecto de reflexão por parte de investigadores/as e políticos nos finais da década de oitenta, início da década de noventa do século XX. Nesta análise, será dada ênfase às investigações e quadros teóricos produzidos e às medidas legislativas e políticas educativas no domínio do tratamento da diferença cultural dentro do sistema educativo português.The aim of this article consists in attempting to transmit a sociologically informed view in what the Portuguese situation in the field of public policies and research related to the educational system and (im)migration are concerned, that is, in attempting to construct an intercultural education. In this way, a descriptive and comprehensiveinterpretative analysis of the evolution of this problem in Portugal will be realized, since the latter became an object of reflection on the part of researchers and politicians towards the end of the 80s, the beginning of the 90s of the XXth century. In this analysis, emphasis will be given on the research and theoretical frameworks produced and on the legislative measures and educational policies in the field of treating cultural difference in the Portuguese educational system
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