Ring Test
Mostrando 1-12 de 138 artigos, teses e dissertações.
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1. Ring Fracture of Brazilian Aortic Valve Bioprostheses Using Non-Compliant High-Pressure Transcatheter Balloon, an Ex Vivo Test
ABSTRACT Introduction: Aortic valve bioprostheses ring fracture in valve-in-valve procedures has shown low complication rates and presents as an option in the treatment of patients at high risk for conventional surgery, avoiding high transvalvular gradients, which are associated with increased mortality. Some prostheses available in the market cannot be fra
Brazilian Journal of Cardiovascular Surgery. Publicado em: 2022
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2. Evaluation of Interobserver Agreement in the Diagnosis of Posterior Pelvic Ring Lesions Using Plain Radiography
Resumo Objetivo Avaliar a concordância interobservador de radiologista, dois ortopedistas especialistas em quadril com experiência no tratamento de fraturas da pelve e acetábulo, dois ortopedistas gerais, dois residentes de ortopedia, e dois residentes de radiologia no diagnóstico de lesões do anel pélvico posterior usando radiografia simples. Métod
Rev. bras. ortop.. Publicado em: 13/12/2019
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3. PREDICTION OF COAL SLURRY PIPELINE TRANSPORTATION GRADING REDUCTION AND ITS INFLUENCE ON PIPE TRANSPORTATION PARAMETERS
Abstract Coal slurry pipe, being a new type of energy transportation mode, changes of the particle composition and the effect on other parameters are worth studying. Comparison of ring tube test measured data and batch grinding model simulation data shows that batch grinding model can predict the coal particle gradation to a certain extent. The effect of col
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
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4. Estudo das propriedades de concretos com adição de fibras vegetais e de polipropileno para uso em paredes estruturais
RESUMO Estudou-se neste trabalho as propriedades de concretos com adição de fibras vegetais (sisal e rami) e de polipropileno para uso em paredes estruturais. Realizou-se uma comparação do desempenho do concreto com a adição de fibras vegetais e de fibra de polipropileno, a fim de se verificar a possível substituição. Foram avaliadas a retração po
Matéria (Rio J.). Publicado em: 10/06/2019
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5. Use of PVC pipes to determine bulk density for irrigation management
RESUMO A irrigação tem grande importância para a produção de alimentos, sendo responsável por consumir grande parcela da água usada nas atividades humanas. Isto torna fundamental o manejo racional do uso da água. Para tal, a determinação da densidade do solo é importante e precisa ser realizada de forma simples e menos honerosa possível, mantendo
Rev. Ciênc. Agron.. Publicado em: 2019-03
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6. Fresh properties of HPSCC containing SRA and expansive admixtures
ABSTRACT Shrinkage-reducing admixture (SRA) and expansive admixture (EXA) were used in high performance self-compacting concrete (HPSCC) to mitigate autogenous shrinkage. In order to evaluate the fresh properties of concretes, the rheological parameters were determined in a ICAR rheometer at 10, 25, 40, 60 and 90 min. The flow behavior of the mixtures was de
Matéria (Rio J.). Publicado em: 18/10/2018
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7. One-year prospective clinical study comparing patient satisfaction and masticatory performance of mandibular overdentures supported by one versus two implants
Abstract There is a lack of clinical evidence on mandibular overdentures (MOD) supported by a single implant. Objective: To compare patient satisfaction and masticatory performance in MOD supported by one versus two implants in a two-group parallel randomized clinical trial. Material and Methods: Twenty-one patients wearing new maxillary and mandibular com
J. Appl. Oral Sci.. Publicado em: 04/10/2018
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8. An axisymmetric nodal averaged finite element
Abstract A nodal averaging technique which was earlier used for plane strain and three-dimensional problems is extended to include the axisymmetric one. Based on the virtual work principle, an expression for nodal force is found. In turn, a nodal force variation yields a stiffness matrix that proves to be non-symmetrical. But, cumbersome non-symmetrical ter
Lat. Am. j. solids struct.. Publicado em: 26/04/2018
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9. Perfil dos consumidores e problemas associados ao consumo de leite cru informal no oeste do Paraná
RESUMO: Os objetivos desta pesquisa foram verificar o perfil, identificar os principais motivos para o consumo e avaliar laboratorialmente as amostras de leite cru informal de cinco municípios do oeste do estado do Paraná, Brasil. Os tipos de leite mais frequentemente consumidos foram: 42,3% ultra-high temperature (UHT), 38,3% pasteurizado, 17,6% leite cru
Arq. Inst. Biol.. Publicado em: 01/02/2018
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10. Mechanical Characterization of Basalt and Glass Fiber Epoxy Composite Tube
The application of basalt fibers are possible in many areas thanks to its multiple and good properties. It exhibits excellent resistance to alkalis, similar to glass fiber, at a much lower cost than carbon and aramid fibers. In the present paper, a comparative study on mechanical properties of basalt and E-glass fiber composites was performed. Results of app
Mat. Res.. Publicado em: 23/10/2017
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11. Effect of clay incorporation in the dimensional stability of FKM nanocomposite
ABSTRACT In this work was studied the effect of nanoparticle incorporation in the dimensional stability of elastomer matrix. To avoid excessive swelling and consequently dimensional instability in the films, crosslinking has been shown to be an efficient and simple method for achieve the reducing membrane swelling and improving mechanical stability. The elas
Matéria (Rio J.). Publicado em: 20/07/2017
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12. Multistage Deep Drawing with Ironing of Al-killed AISI 1040 Graded Medium Carbon Steel: a Parametric Study
Analysis of multistage deep drawing with ironing was made while manufacturing of cups from 12 mm thick, 60 mm diameter circular blanks of Al-killed AISI 1040 graded medium carbon steel. Quality requirements of the steel in heat treated condition were examined in terms of tensile properties, formability characteristics, and formability limit diagram. Drawabil
Mat. Res.. Publicado em: 26/06/2017