Experimentos didáticos em fenômenos de transporte e operações unitárias para a Engenharia Ambiental

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Alocação dinâmica de memória – Operações de alocação [Audiodescrição]

Versão com menu acessível para leitores de tela e vídeo com audiodescrição

Operações sobre tabelas sem ordenação

Apresentação das principais características das tabelas de ordenação. Esta animação tem por objetivo ilustrar o funcionamento de tabelas sem ordenação. É ilustrada nesta animação como é feito o processo de criação de tabelas sem ordenação, a inserção de dados nesta tabela, bem como a remoção, a atualização e pesquisas dos dados armazenados neste tipo de tabela.

Operações sobre arquivos ordenados

Apresentação dos processos inerentes aos arquivos sem ordenação. Nesta animação é ilustrada como é feita a criação de um arquivo sem ordenação. Os processos de criação de arquivo, inserção, remoção, alteração e busca de dados em arquivos sem ordenação são ilustrados em dois níveis: nível conceitual, em que é mostrada a ideia geral; nível detalhado, em que é ilustrado a relação entre o disco HD e a memória buffer.

Operações sobre tabelas ordenadas

Apresentação das principais características das tabelas ordenadas. Esta animação tem por objetivo ilustrar o funcionamento de tabelas ordenadas segundo algum critério de ordenação. É ilustrada nesta animação como é feito o processo de criação de tabelas ordenadas pelo RA do aluno, a inserção de dados nesta tabela, bem como a remoção, a atualização e pesquisas dos dados armazenados neste tipo de tabela.

Funções - operações e propriedades

A videoaula conceitua funções e suas variáveis como uma regra ou um mecanismo de transformação de uma entrada em uma saída. Por fim, traz ainda a definição de função como conjunto de pares; Domínio e Imagem; a representação gráfica das funções e representação gráfica de funções sobre conjuntos finitos; a composição de funções; as funções inversível, injetiva, sobrejetiva, bijetiva, e a contagem de funções e propriedades.

O som do silêncio :a angústia social que encobre o luto : um estudo sobre isolamento e sociabilidade entre enlutados do cemitério Morada da Paz (Natal/RN)

Nowadays, the act of mourning configures as a circumstance of isolation and social anguish due to the impossibility to express the pain by those who suffer the loss of a dear one. At the same time, the symbolic relations established between society and the cemetery contains interpretations about death, pain and fear which confer to the visits a special and individual feature. In this context, this dissertation tries to analyse the formation of a sociability observed among visitors of the Morada da Paz a private cemetery located in Natal/RN as well as the frequency of the visitors to the necropolis. Therefore, the research was accomplished from the observation of the existent relations among these actors whose meetings have procured links based on the experiences´ exchange about pain and bereavement. In this sense, this study tries to analyse, as its principal point, in which way the Morada da Paz space and the relations established there are being appropriate by the visitors in their mourning process, trying to understand what are the role of these bond in the elaboration of the loss for these people

Trajetória dos assentamentos rurais financiados pelo crédito fundiário no estado do Rio Grande do Norte: uma análise da experiência do assentamento da fazenda Paz no município de Maxaranguape/RN

The market-assisted land reform (RAAM) has been constituted as an alternative of agrarian reform funded by the Programa Nacional do Crédito Fundiário (PNCF). It is a policy of acquisition, distribution and use of Earth ideologically disseminated and funded by the World Bank in the context of productive insertion of landless workers. Accordingly, this study seeks to analyze the trajectory of rural settlements financed by this policy, seeking to understand what factors promote or limit the process of rural development of those settlements. To do so, take as a reference case study of the Assentamento da Fazenda Paz, in the municipality of Maxaranguape in the State of Rio Grande do Norte. From the methodological point of view, bibliographical and documentary research were used, in addition to visits to the settlement and semi-structured interviews with the settlers, trade union leaders, consultants and technicians linked to the project. Assuming the reports of respondents, initially constructs the hypothesis that informal and formal institutions present in the Assentamento da Fazenda Paz were unable to effectively coordinate the actions of the agents. The results obtained showed the existence of a very complex undertaking, with a total area of 607 hectares and 80 families settled, endowed with good quality water and irrigation infrastructure, with assets of approximately R$ 5 million reais. Experience experienced by the settlers understood the development of complex systems of production and marketing of fruits and vegetables, with an emphasis on the cultivation of papaya in an area of 45 hectares based on modern irrigation system and extensive use of technology. Collective management of production, marketing, revenue and costs stood out as a major challenge for the settlers and their representative organisations, i.e. the Community Association and the cooperative. From this observation it was possible to identify two moments on the trajectory of the project: the first, between 2007-2011, considered by respondents as successful, in which the integration of public policies and abundant input of revenue from the commercialization of the fruits da Paz, mainly through the sale of papaya and pineapple in national and international markets, allowed an average remuneration of R$ 800.00 reais to R$ 1,000 reais seated/monthIn addition to the production of vegetables and other types of products for sale and consumption; the second, from 2012, characterized as a failure, due to the discontinuity of the cultivation, production and marketing of fruits based on the collective bargaining model deployed. Important factors explain the discontinuity of the project, including the model of agriculture implemented, difficulties related to the management of production, marketing and finance the venture, in addition to the breach of trust between the Board of the cooperative and the associates and the distancing of the governmental organizations more directly responsible for the project. It is therefore concluded that we must to rethink rural development as a multidimensional phenomenon, requiring a broad engagement between State and society under the foundations of a territorial development contract

Educação e sustentabilidae :Assentamento Maria da Paz - João Câmara/RN

This work is a research and action in the field of enviromental education, oriented for the construction of the land s distribuction of the Maria da Paz Settling, in João Câmara/RN, as process of social learning, collecive production of new knowledge, values and attitudes related to the environment. It was consolidated through a partnership beteween the UFRN (GERAH/DARQ and GEPEM/DEPED), MST and INCRA/RN. The drawing that represents the way the space organization of the settling was made constructed through effort of many people, in a process of dicussion with the community had as technical support the environment inventory (soil, vegetation, water resources, and others) allowing the agro-ecology zoning of the settlers participation conditions, their contradiction and conflicts, the challenges that appear in the search for consensus and the factor that creat chages

Contribuições da pesquisa operacional para gestão da produção e operações : uma análise exploratória da literatura

This research aims to investigate the evolution presented during three decades (1980, 1990 and 2000) of using the tools of Operations Research (OR) as a suport to decision making in Production Operation Management (POM). Hypothesis tests were made to verify the proportional growth of a given area over the decades to the detriment of the areas of facility layout, capacity planning, production scheduling and inventory management. Six journals were selected and from them more than 800 articles were used for classification and analysis in the grounds of review. It also discussed possible ways for future research and comparisons are made with other papers of literature review. As a result, it was found that areas of heuristics and simulation showed a greater quantity of contributions in all POM areas of this study

Estratégia de operações no varejo: um estudo sobre perfilar mercado, produto e operações no setor de supermercados

The objective of this Thesis is to investigate the strategic alignment between market end operations in the retail supermarket sector applying the concept product profiling by Hill (1993). To the developing was utilized a methodology of the cases study had were a evolvement if the action research into on of the RedeMais supermarkets. Through the interview, discussion and direct action became possible collect information necessary to direction this work, absorbing and understanding the methodology and thought form, action and management. This work contribute to development the create of the model adapted of the manufactory to service, the product matrix of the Hill, in which serve a tool to uncover the origins of misalignment that occur over time and to illustrate the phenomenon to executives gone support to decision

Demanda energética nas operações mecanizadas na silagem de milho no sistema de silo bag

Foi avaliado o consumo energético das operações mecanizadas envolvidas na produção de silagem de planta inteira e silagem de grão úmido de milho, tendo como referência o processamento seco desse cereal. O ensaio foi conduzido na Fazenda Experimental Lageado, pertencente à Faculdade de Ciências Agronômicas, e nas instalações da Faculdade de Medicina Veterinária e Zootecnia - UNESP, localizada no município de Botucatu - SP. O delineamento experimental foi em blocos ao acaso, com parcelas subdivididas no tempo (três épocas de colheita: silagem de planta inteira, silagem de grão úmido e colheita de grãos secos), com 10 repetições. As análises estatísticas foram realizadas por meio do programa ESTAT, pelo teste de média de Tukey, a 5% de probabilidade. A silagem de planta inteira teve o maior consumo de combustível por área. A secagem dos grãos de 15,5% para 13% foi responsável por 87% do gasto de energia por área. A silagem de grão úmido demandou o menor uso de energia por área nas operações mecanizadas.

Comparação entre planejamento estatístico experimental e análise dimensional em operações de mistura e separação para sistema óleo-água

This work aims to determine a better methodology to help predicting some operational parameters to a new design of mixer-settler on treating wastewater produced by petroleum industry, called MDIF (Misturador-Decantador à Inversão de Fases/ Mixer-Settler based on Phase Inversion MSPI). The data from this research were obtained from the wastewater treatment unit, called MSPI-TU, installed on a wastewater treatment plant (WTP) of PETROBRAS/UO-RNCE. The importance in determining the better methodology to predict the results of separation and extraction efficiency of the equipment, contributes significantly to determine the optimum operating variables for the control of the unit. The study was based on a comparison among the experimental efficiency (E) obtained by operating MSPI-TU, the efficiency obtained by experimental design equation (Eplan) from the software Statistica Experimental Design® (version 7.0), and the other obtained from a modeling equation based on a dimensional analysis (Ecalc). The results shows that the experimental design equation gives a good prediction of the unit efficiencies with better data reliability, regarding to the condition before a run operation. The average deviation between the proposed by statistic planning model equation and experimental data was 0.13%. On the other hand, the efficiency calculated by the equation which represents the dimensional analysis, may result on important relative deviations (up 70%). Thus, the experimental design is confirmed as a reliable tool, with regard the experimental data processing of the MSPI-TU

A Compreensão da idéia do número racional e suas operações na EJA: uma forma de inclusão em sala de aula

The awareness of the difficulty which pupils, in general have in understanding the concept and operations with Rational numbers, it made to develop this study which searches to collaborate for such understanding. Our intuition was to do with that the pupils of the Education of Young and Adults, with difficulty in understanding the Rational numbers, feel included in the learning-teaching process of mathematics. It deals with a classroom research in a qualitative approach with analysis of the activities resolved for a group of pupils in classroom of a municipal school of Natal. For us elaborate such activities we accomplished the survey difficulties and obstacles that the pupils experience, when inserted in the learning-teaching process of the Rational numbers. The results indicate that the sequence of activities applied in classroom collaborated so that the pupils to overcome some impediments in the learning of this numbers

As quatro operações básicas: uma compreensão dos procedimentos algorítmicos

The current research had as main objective to analyze the possibility of knowledge elaboration/re-elaboration about ideas and algorithmic procedures related to basic operations by pupils of the 6th degree fundamental teaching in a significant learning process. This way the study had as basis a methodological intervention developed in a 6th degree class of a Fundamental Teaching Municipal School in the city of João Pessoa, PB. The research had as central steps the application of pre-tests (1 and 2); the execution of semi-structured interviews with the pupils involved in the theme deep studies; the elaboration and development of teaching activities, having as referential the significant learning and the application of a pre-test. The data collected in the pre-tests (1 and 2) showed a low level of the pupils comprehension about the contents related to the four operations. The answers to the post-test questions were analyzed mainly from the qualitative point of view based on the mathematic concepts comprehension theory proposed by Skemp (1980) having as complementary subsidy data collected through interviews. The analysis of the results obtained in the post-test showed that the major part of pupils reached a relational comprehension about the ideas and algorithmic procedures related to addition, subtraction, multiplication, and division. Such results showed us that the application of a teaching methodology that privileges the content comprehension, considering the pupils previous knowledge and the reflection about the action along the activities proposed, made possible the elaboration or re-elaboration of knowledge by pupils regarding to contents adopted as theme for our research