Caracterização de motor aeronaútico utilizando misturas de gasolina de aviação e etanol: aspectos fluidodinâmicos, termodinâmicos e ecológicos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Variabilidade genética em progênies de polinização aberta de Eucalyptus urophylla

Pós-graduação em Ciência Florestal - FCA

A Fuzzy Goal Programming model for solving aggregate production-planning problems under uncertainty: A case study in a Brazilian sugar mill

This paper proposes a Fuzzy Goal Programming model (FGP) for a real aggregate production-planning problem. To do so, an application was made in a Brazilian Sugar and Ethanol Milling Company. The FGP Model depicts the comprehensive production process of sugar, ethanol, molasses and derivatives, and considers the uncertainties involved in ethanol and sugar production. Decision-makings, related to the agricultural and logistics phases, were considered on a weekly-basis planning horizon to include the whole harvesting season and the periods between harvests. The research has provided interesting results about decisions in the agricultural stages of cutting, loading and transportation to sugarcane suppliers and, especially, in milling decisions, whose choice of production process includes storage and logistics distribution. (C)2014 Elsevier B.V. All rights reserved.

Ampliação da capacidade da portaria de cargas de uma indústria através da implantação de um sistema de pesagem por eixo

Through a detailed study of each component, the structural part and various technologies for highway weighing scales, a project was developed in order to implement a modern system of axle weighing in a company pursuing to expand its cargo door capacity, which was restricted to weighing and inspection of the maximum load of each vehicle, and especially to extinguish the number of notifications that the company has been suffering, by having their transportation logistics vehicles caught traveling with poorly distributed load per axle, what it caused damage to roads and vehicles and denigrated the company image in terms of marketing. To achieve these results, the project went through a study of all relevant national legislation, seeking to put the company always in agreement. Moreover, it had investments and its physical space available for its implementation. The payback of such investments would be about less than three years

Identificação de causas especiais no processo que aumentam a ocorrência de poro na solda de tubos de aço: aplicação etapas definir, medir e analisar do DMAIC

This work covers the methodology Six Sigma with the application of the steps Define, Measure and Analyze a company of steel tubes, with the objective of identify special causes in the process that drives the creation of the pore defect in the solder. It is highlighted the fact that this work is the base of an continuous upgrade project that aims in eliminating the occurrence of this defect. The motivation is given to the necessity of improving the productivity of the factory, considering that the defect occurs at random and your causes are unknown. This way, it was defined that the problem to analyze, measured the capability of the process in DPMO and analyzed with the aid of graph by attribute P. The results show the process that present special cases, as well as the process considered ideal, This way it was stated that in this work, the processes destabilized and the controlled, allowing a comparison of the characteristics for the elaboration of concise action plans to eliminate the defect. The project must follow the steps Upgrade and control the methodology Six Sigma, in order to ensure success in his execution, aiming to amplify the competitive edge of the business

Utilização da programação por metas e análise por envoltória de dados para seleção de variedades de cana de açúcar para plantio em uma usina sucroalcooleira

Organizational change is occurring in the Brazilian agribusiness from sugar cane in recent decades. Aspects of management in this sector are being changed due to the importance of its products, especially ethanol and electricity. It is observed in the literature a lack of quantitative studies in this Brazilian sector, particularly the selection of sugarcane varieties for planting. This study proposes the use of Goal Programming (GP) with Data Envelopment Analysis (DEA) to select efficient varieties of sugarcane for planting in a sugar and ethanol milling company. The study allowed the identification of efficient sugarcane varieties. This way, it helped the company to make more reliable decisions, favoring the increase of productivity

O grupo cervejeiro nacional petrópolis na evolução do capitalismo brasileiro: concorrência e expansão territorial

The processes resulting from globalization are backdrop for the work. On the other hand the Regulation Theory is theoretical north that drives research directions. Considering these two basis, we studied the formation of economic groups as a consequence of the processes of concentration and centralization of capital, giving more emphasis on their national character. We see how they went through the restructuring process in the transition from Fordist accumulation regime to a flexible system of accumulation. We 'll discuss the brewery industry and how major industry groups are currently creating a sector overview, ranging from the productive process to the forms of competition among large companies. Specifically we will see the Petrópolis Group this framework and how the company relates to the territory, and what answers we have of this relationship in terms of local development in the territories where the group entered, and territorial changes which have occurred there

Estudo da gestão de aterros sanitários através de consórcios públicos e públicos-privados

The growing population, purchasing power and changing the profile of Brazilian consumers are the facts to justify the increase in waste production in the country. According to the National Research Sanitation made by IBGE in 2000, Brazil produced 241,614 tons of waste per day, equivalent to approximately 90 million tons per year. This growth leads researchers to consider a better way to dump this material in order to mitigate the damage to population health and the environment. For this, one of the possible actions is the search for alternative disposal technological development, a possible solution being the construction of landfills. But many cities, especially those from regions of poor or agricultural base, do not always have sufficient resources and open spaces for the construction of a landfill as required by law. Fits like a context in which it operates as an alternative technology for inter-municipal consortia landfill and public-private partnerships in order to contribute to the sustainable development of cities. The law that regulates public consortia is the Federal Law 11.107 of April 2005, as the law that regulates and makes possible the Public-Private Partnership is the Federal Law 11.079 of 2004. Consortia are entities that bring together several municipalities, with or without the State and the Union to carry out joint actions that if were borne singly, not would achieve the same results or would lose a greater volume of resources, and would demand more time. The public-private partnership consist of one or more municipalities and a private company, selected by public tender, which becomes responsible for implementation, maintenance and operation of the landfill. This practice can performed on the model of concession, in which public administration is direct or indirect user, with or without installation and ... (Complete abstract click eletronic access below)

Caracterização gênica para uma anomalia de Eucalyptus em fase inicial de desenvolvimento

Pós-graduação em Ciências Biológicas (Genética) - IBB

Avaliação de recursos hídricos sob a influência de atividades de uma indústria do petróleo, por meio de análises ecotoxicológicas integradas a parâmetros ambientais

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Das terras do Sem Fim aos Territórios do Agrohidronegócio: conflitos por terra e água no vale do São Francisco

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

Botucatu: modernização e infraestrutura urbana no interior paulista (1928-1934)

Pós-graduação em História - FCLAS

Practices of environmentally responsible reverse logistics systems in Brazilian companies

The aim of this paper is to propose a classification of reverse logistics systems based on activities for value recovery from returned products. Case studies were carried out in three Brazilian companies. Research results show that Company 1 uses a reverse logistics system based on ‘disposal logistics system’, the main reason for returns is ‘end of life’ and the main motivation is ‘legislation’; Company 2 uses ‘Recycling logistics system’, the main reason for the returns is ‘products not sold’ and the main motivation is ‘recovery of assets and value’; finally, Company 3 uses ‘product reprocessing logistics system’, the main reason for returns is ‘end of life’ and the main motivation is ‘social and environmental responsibility’.

Metodologia de determinação de funções de pertinência de controla-dores fuzzy para a avaliação energética de empresas de avicultura de postura

The objective of this work is to determine the membership functions for the construction of a fuzzy controller to evaluate the energy situation of the company with respect to load and power factors. The energy assessment of a company is performed by technicians and experts based on the indices of load and power factors, and analysis of the machines used in production processes. This assessment is conducted periodically to detect whether the procedures performed by employees in relation to how of use electricity energy are correct. With a fuzzy controller, this performed can be done by machines. The construction of a fuzzy controller is initially characterized by the definition of input and output variables, and their associated membership functions. We also need to define a method of inference and a processor output. Finally, you need the help of technicians and experts to build a rule base, consisting of answers that provide these professionals in function of characteristics of the input variables. The controller proposed in this paper has as input variables load and power factors, and output the company situation. Their membership functions representing fuzzy sets called by linguistic qualities, as “VERY BAD” and “GOOD”. With the method of inference Mandani and the processor to exit from the Center of Area chosen, the structure of a fuzzy controller is established, simply by the choice by technicians and experts of the field energy to determine a set of rules appropriate for the chosen company. Thus, the interpretation of load and power factors by software comes to meeting the need of creating a single index that indicates an overall basis (rational and efficient) as the energy is being used.

Profissionalização da estrutura administrativa de empresas familiares: comércio varejista de materiais de construção

One of the existing business models is the family business. This paper deals with the structure of family businesses. With the purpose to analyzing the input and output processes of goods, and management behavior in decision-making, looking for the professionalization of the family business administration. This paper is a case study in a construction materials shop, with an applied research due to their nature, according to his purpose takes the characteristic of exploratory research, using interviews, observation and analysis of company data. During the analysis of processes in the company were noted some shortcomings. Given this fact, made the comparison with the theories found, proposals were generated improvements to be accomplished within the company structure