Mechanical Inspection
Mostrando 13-24 de 25 artigos, teses e dissertações.
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13. Desenvolvimento de técnicas para avaliação de combustíveis nucleares tipo placa pelo método de ensaio por ultra-som
One of the most important steps in the fabrication processes of plate type nuclear fuels, intended to be used in research reactors or naval propulsion, is the development of nondestructive testing (NDT) methods and techniques for their quality assessment during fabrication and post-irradiation analysis. Those tests can contribute to detect discontinuities su
Publicado em: 2008
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14. Avaliação de embalagens flexiveis esterilizaveis e alimentos de pronto consumo para equipagens de aeronaves e para uso terrestre. / Evaluation of retortable pouch and foods of ready consumption for equipages of aircraft and terrestrial use.
The operational meals means are fundamental to the implementation of the activities of training and actual deployment of the armed forces around the world and is still employed in circumstances of contingency of civil order. In this sense, the Brazilian Air Force, in the search for solutions and continuing improvements in the area of the food supply, is prio
Publicado em: 2008
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15. Development of an automated and dedicated measuring system for straightness evaluation
This work presents an automated and dedicated system aiming at the measurement of straightness errors of mechanical components, using an industrial robot. A multi-probe error separation technique was used to make measurements independent from the coordinate system of the robot. A mathematical model that takes into account the readings from three sensors was
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2007-09
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16. AVALIAÇÃO DA INTEGRIDADE ESTRUTURAL DE PONTES METÁLICAS DA FERROVIA TURÍSTICA OURO PRETO/MARIANA (MG) POR MEIO DE MODELAGEM NUMÉRICA E TÉCNICAS LABORATORIAIS
With the recuperation of the national railroad system in mind, a study of the pathological phenomena that occur in metallic railroad bridges was performed. These phenomena, such as: corrosion, fatigue cracks, loose connections and deformation and/or excessive displacement of the structural elements, are the principal factors responsible for bridge interventi
Publicado em: 2007
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17. Contribuição à inspeção, diagnóstico e procedimento de reabilitação de poste de concreto armado centrifugado utilizado em telefonia celular. / Contribution to the inspection, diagnosis and rehabilitation procedure of centrifugally cast concrete post used in telecomunication market.
Precast reinforced concrete posts were installed in Brazil by mobile telephone companies when implanting and enlarging service areas of the system starting in 1996. The great majority of these posts were manufactured by a single company, using a centrifugal process. Approximately two thousand units of posts were produced of heights ranging between 20m [60 ft
Publicado em: 2007
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18. Study of the frequency response method applied on localization and quantification of leakage by pressure and discharge monitoring in water supply main pipes. / Estudo do método de resposta em freqüência para localizar e quantificar vazamentos através do monitoramento de pressões e vazões em adutoras de água tratada.
This work presents some methods for leak location, from de most elementary techniques and equipments, as visual inspection and mechanical geophone, until using sophisticated noise data-logger and computational modeling. Some of these techniques are very well issued and largely used by water companies, but others play excellent promises for the improvement of
Publicado em: 2006
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19. ESTUDO EXPERIMENTAL COMPARATIVO DOS CIMENTOS ÓSSEOS NACIONAIS / EXPERIMENTAL STUDY COMPARING NATIONAL BRANDS OF ORTHOPAEDICAL CEMENT
The bone or acrylic cement, also known for polymethylmethacrilate (PMMA), is a biomaterial used in surgeries. Used mainly in the fixation of prostheses, beyond the fulfilling and reconstruction of bone segments, the bone cement is placed in the empty spaces between the implant and the endosteal bone surface, hardening in little time and assuring the firm ran
Publicado em: 2006
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20. Proposta para implantação de um programa de controle de qualidade de imagem em equipamento de ultra-som modo-B / Proposal to im plement an image quality control in B-mode ultrasound equipment
A necessidade da Garantia da Qualidade do serviço prestado no ambiente hospitalar tem sido enfatizada nas publicações em Engenharia Clínica. Este trabalho tem por objetivo principal o desenvolvimento de um programa de controle de qualidade de imagem aplicado a equipamentos de imagem médica gerada por ultra-som Modo-S, envolvendo a elaboração e aplica�
Publicado em: 2003
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21. Correlação de estrias de fadiga com espectro de cargas em liga de Al aeronáutica SAE-AMS 7475 T 7351. / Correlation of fatigue striation spacing to loading history in aeronautic Al alloy, AMS 7475 T7351.
This work discusses the relationship between striation spacing, i.e. the microscopic crack propagation rate, SL (local) e SP (projected), as measured in post-mortem fractographic inspection of fatigue fractured surfaces, and the macroscopic crack propagation rate, da/dN, as monitored during fatigue crack growth tests. Compact tensile specimens C(T) were extr
Publicado em: 2003
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22. THE GULLY PROCESS STUDY NEXT TO THE ITUMBIARA HYDROELECTRIC COMPLEX - GO / ESTUDO DE UM PROCESSO DE VOÇOROCAMENTO PRÓXIMO A UHE DE ITUMBIARA - GO
This dissertation, developed within the context of the PRONEX Project of the Environmental Geotechnical Center of PUC-Rio and through a FURNAS-PUC-Rio Convenium, presents a contribution towards the identification and comprehension of mechanisms involved in erosion processes, considering its geological and geotechnical aspects as well as preventive repairing
Publicado em: 2003
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23. Analise e redução de estruturas em confiabilidade / Analysis and reduction of structures in reliability
The evaluation of the reliability in systems becomes complex when the number of components is high, or for the case of systems of complex configuration. This work had the objective of elaborate the ca1culation procedure to estimate the reliability in these cases, through computational software developed in Visual Basic. That allows to reduce these systems to
Publicado em: 1999
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24. Work related impairment of nasal function in Swedish woodwork teachers.
OBJECTIVE: To study the relation between exposure and nasal function in woodwork teachers. METHODS: 39 selected woodwork teachers employed full time and 32 control subjects (other school personnel) were examined at the beginning and at the end of a working week with symptom rating, nose and throat inspection, rhinomanometry, nasal mucociliary clearance test,