Desenvolvimento e validação de método analítico empregando cromatografia gasosa ultrarrápida para quantificação de teor total de ésteres em amostras de biodiesel

Pós-graduação em Química - IQ

Discussão da utilização do controle estatístico de processo: análise bibliométrica e estudo de caso em uma empresa do setor alimentício

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Avaliação quantitativa do uso dos recursos hídricos em unidade de conservação e entorno: estudo de caso do Parque Estadual da Serra do Mar

Pós-graduação em Engenharia Civil e Ambiental - FEB

Desenvolvimento de uma ferramenta de otimização para avaliar a expansão da transmissão de energia

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Estudo de um método automatizado para o cálculo da profundidade de visualização dos equipamentos de ultrassonografia

Ultrasound is the term that describes the sound waves with higher frequencies than human hearing. Ultrasound used in medical diagnosis is a modality based on the use of sound energy and the acoustic properties of the various parts of the body to produce images of stationary and moving tissues. However, despite the ease of use and security that this modality offers for not using ionizing radiation, one should ensure the accuracy and optimum performance of the equipment, which results in precise diagnoses. To accomplish that, periodic quality control tests must be performed, which include: physical and mechanical inspection of the equipment, image uniformity, depth of penetration/visualization, accuracy of distances, axial and lateral resolution, dead zone and doppler sensitivity. This work intends to study a computerized method for calculating the depth of penetration of ultrasound, comparing it to the observerdependent method currently used. The images were collected during the quality control tests of ultrasound equipment. The results of the comparison between the visual and computerized methods were not conclusive for selecting the safest methodology for obtaining the depth of visualization

Aplicação do desdobramento da função qualidade (QFD) para melhoria da qualidade em um restaurante self-service

Currently, with the competitiveness that is seen in the market, it is crucial to the success of the business, develop new strategies to keep and win new customer preference. To ensure the success of a particular service or product, the secret is to continually meet the wishes and demands of the customers, which are the key parts of the business, through innovation, variety and quality assurance. To achieve this goal managers should be aware of all types of process that exist in the company, as they are primarily responsible and interested by quality service, customer satisfaction and consequently, generating favorable financial results. A tool used to ensure good results to business is the Quality Function Deployment (QFD) that seeks to hear and interpret customers requirements and turn them into essential features for a project

Geração de energia renovável em residências: aplicação de tecnologias existentes

Due to the high value of the bill that the Brazilian has been paying, one of the most expensive in the world, is becoming increasingly attractive the option for renewable energy in form of distributed micro and minigeneration. In other words, the renewable energy sources are becoming attractive not only because of environmental concerns, but also due to economic issues. This has become even more relevant and concrete after approval of rules by National Agency of Electric Energy (ANEEL) on 4/17/2012 (Normative Resolution n ° 482/2012 of 04/17/2012) aimed at reducing barriers to installation of small distributed generation, including microgeneration, with up to 100 kW of power, and minigeneration, 100 kW to 1 MW. The Normative Resolution n ° 482/2012 creates the Energy Clearing System, which allows consumers to install small generators in its consumer unit and exchange energy with the local distributor. The rule applies to generators that use renewable sources of energy (hydro, solar, biomass, wind and cogeneration qualified). In this context, this paper presents a technical and economic analysis of installing a residential microgenerating plant composed of photovoltaic cells, solar panels and small wind turbines

Levantamento para a implantação de um sistema de gestão da qualidade segundo a norma NBR ISO/IEC 17025:2005 no Laboratório de celulose e papel da UNESP-Itapeva

The aim of this study is to perform a situational analysis of the Laboratory of pulp and paper-UNESP ITAPEVA for conducting proposal the accreditation according to ISO / IEC 17025:2005. The ISO / IEC 17025 establishes the criteria for those laboratories wishing to demonstrate their technical competence, which have an effective quality system and are able to generate technically valid results, establishing a single international standard for certifying the competence of laboratories to carry tests and / or calibrations, including sampling. The case study was conducted on laboratory Pulp and Paper Universidade Estadual Paulista (UNESP), campus Itapeva, where we compared the views of the technician responsible for the laboratory and a regular user. The generated conclusion is that the laboratory is unable to initiate an accreditation process, because it fails the requirements such as quality manual, register of subcontractors, research of customer satisfaction, schedule of internal audits, schedule for completion of critical analysis, profile of the functions required, functions current description, documentation of technical requirements for accommodation and environmental conditions, calibration programs, equipment calibration program, programs calibration standards and reports and / or certificate of test and / or calibration, that are in accordance with ISO / IEC 17025:2005, beyond that there is not the possibility to develop and implement a quality system without the commitment of everyone involved, regardless of the functional hierarchy

Cogeração de energia com motores de combustão interna

The tertiary sector is largely responsible for the growth of electricity consumption in Brazil. The large commercial and public buildings, hypermarkets and shopping centers stand out as major consumers of electricity for lighting, power and thermal energy. Brazil presents significant potential for the deployment of small cogeneration plants, especially in the tertiary sector. Allied to this, the possibility of natural gas supply and the growing demands in favor of maintaining and preserving the environment favor the implementation of cogeneration plants. In this context, this paper presents a technical and economic analysis of installing a cogeneration plant using internal combustion engine with natural gas in a mall

Medidores inteligentes: o primeiro passo em direção as redes inteligentes

Smart grids are the focus of major study today because of the necessity of modernization in electrical systems and reduction of greenhouse gas emissions that increases global warming. Reaching the best deployment method, you must first of all know the current electrical system and how to use them for the benefit of this new technology. Preparing the action plan we should be aware of the main points of smart grids in each step of the electricity system - generation, transmission and distribution. Analyzed these topics, this work will focus on the first step in the implementation of the smart grids: the smart meters, tool which is already being implemented in Brazil. The main characteristics and applications of these devices, as well as their communication structure with the core distributors will be showed during the paper. Finally, we present a case study which will be discussed and analyzed based in the results obtained with the implementation of smart meters in the city of Vancouver, Canada, where we have a considerable savings already in the first year, with fully paying the initial investment and still have a profit

Projeto de recuperação da planta termelétrica do Laboratório de Vapor do Departamento de Energia da Faculdade de Engenharia de Guaratinguetá

Brazil is nowadays the greatest bet of investors for the future due to its stable economy growth. The country has grown side by side with the greatest demand for electrical energy. The international appeal for renewable sources is causing a change in the Brazilian energetic matrix, raising the amount of energy generated by thermoelectric power plants. The construction of new power plants, running on biomass, requires a crescent number of capacitated personnel to run them. The Faculdade de Engenharia de Guaratinguetá – UNESP – has a steam laboratory; witch is deactivated, which has a thermoelectric plant of small capacity. The laboratory reactivation and the return of its activities can be an important tool in order to graduate engineer able to operate on such units. This paper proposes four new experiments to be simulated on the Collage’s Energy Dep. Steam Lab when it gets back to its educational activities

Resistividade elétrica em aterro sanitário e relações com a produção de biogás

The landfill biogas can be an alternative energetic resource as a fuel to electrical energy generators, although, there are not too many techniques to prospect the gas. Usually, landfills receive home waste, which in most are constituted by organic matter whose degradation by anaerobic activity produces the biogas. Geophysics is an important tool in environmental studies and the electrorresistivity, an important method employed in contaminated areas by slurry or necroslurry, including a monitoring for each contaminator flow. The electrorresistivity has not too much application in finding biogas. For this work, two biogas drains in Rio Claro-SP landfill were selected: one whose waste disposition correspond to the initial activities in the landfill and another drain whose disposition started more recently. The result consists in a higher biogas production if compared to the biogas from the older drain. The present paper consists in a monitoring along one year, with dates collection in each fifteen days. These dates were tabled in Excel 2010 program and graphics of resistivity x depth were generated. Hereafter, most variable resistivity values depth were chosen, to further graphics pluviosity x resistivity generation in Grapher 8 program and the biogas output (m³/h) in monitoring period. The use of pluviosity parameter can be justified by its influence above resistivity. The results show that there is a horizon with possibly biogas accumulation. Lastly, the method was effective, although, for any application of geophysical methods, the knowledge about its limitations is necessary; in this case the influence of pluviosity and also that the measurements were made in one single point, it will not show any side variation

Impacto da ABNT NBR 15575 na qualidade da construção civil

The quality in construction is increasingly a concern in this sector, in view of the occurrence of problems in civil works, even when a contractor is certified by ISO 9001. The ISO 9001 certification does not ensure the maintenance of quality because it only establishes the requirements for a quality management system (QMS) to ensure standardization of processes and products. With the development of ISO 15575, standard performance, the builders took on a quality parameter with the requirements established by this Standard, which must be met. Thus, the implementation of a quality management system (QMS) becomes essential, showing users the concern for quality. This study aimed to verify, through a case study, the impact of NBR 15575 quality construction and how that standard of performance may be the key element of ISO 9001 to ensure quality maintenance of civil works

Avaliação da qualidade de comprimidos de captopril 50 mg comercializados no Brasil

O captopril foi o primeiro agente desenvolvido para o tratamento da hipertensão, doença que acomete grande parte da população adulta mundial, a qual requer cuidados especiais quanto à farmacoterapia e ajuste de doses. Assim sendo, este trabalho tem como objetivo avaliar a qualidade de comprimidos de captopril 50 mg comercializados no Brasil através da realização da equivalência farmacêutica entre duas marcas de comprimidos não revestidos de captopril 50 mg (um genérico G e um similar S) em relação ao medicamento referência (R) Capoten® Bristol Myers Squibb 50 mg, utilizando os requisitos descritos na monografia individual do fármaco da Farmacopeia Brasileira e da Farmacopeia Americana. Medicamentos referência são produtos inovadores, cuja eficácia, segurança e qualidade foram comprovadas cientificamente; os chamados similares são os que contêm as mesmas substâncias ativas, mesma concentração, forma farmacêutica, via de administração, posologia e indicação terapêutica do medicamento de referência e são identificados por nome comercial ou por sua marca; os medicamentos genéricos são intercambiáveis com o produto referência e, geralmente, são produzido após a expiração ou renúncia da proteção patentária do mesmo, ele deve ser designado pela DCB (Denominação Comum Brasileira) ou, na ausência desta, pela DCI (Denominação Comum Internacional). Os dois medicamentos analisados, medicamento similar e medicamento genérico, apresentaram resultados satisfatórios quanto à determinação de peso médio, resistência mecânica e tempo de desintegração dos comprimidos, identificação, doseamento, limite de dissulfeto de captopril, uniformidade de doses unitárias, teste de dissolução e perfil de dissolução do fármaco, com relação ao seu medicamento referência correspondente, ou seja, estes são equivalentes farmacêuticos e apresentam qualidade... (Resumo completo, clicar acesso eletrônico abaixo)

Atualização do conceito de qualidade na construção civil

The quality control is of great importance for the development of any organization, mainly for providing an assurance of delivering high quality services and goods for the consumers. Quality can be defined by the word „change‟, for the company which intends to implement a quality control system must be open to changes. This can be noticed from the JURAN concept (1992 In SILVEIRA ET AL., 2002): “Quality is to fit for usage”, i.e., depending on the goal, the situation and the consumer, quality is seen in different ways, since each one has different wishes and opinions. Taking in to account the availability of means such as norms, theories and tools, that contribute for an efficient quality management system, this discrepancy of opinions and the lack of objectivity of this concept can be solved, since through the analyzes of these means one can set quality standards, i.e., market references which fulfill both consumers and builders demands. Thus, the quality concept ceases to be something so abstract, non-measurable, to become a more objective concept. Finally, the goal of this work is to analyze the quality concept through bibliographic studies and possible consumers‟ enquires, aiming at the building industry, and show how the quality, often taken as something abstract, can be a measurable and objective concept, that benefits both the consumer as well as the enterprise of this branch