Now showing items 1-20 of 362

    • A genetic symbiotic algorithm applied to the one-dimensional cutting stock problem 

      Golfeto, Rodrigo Rabello; Moretti, Antonio Carlos; Salles Neto, Luiz Leduino de [UNIFESP] (Sociedade Brasileira de Pesquisa Operacional, 2009-08-01)
      This work presents a genetic symbiotic algorithm to minimize the number of objects and the setup in a one-dimensional cutting stock problem. The algorithm implemented can generate combinations of ordered lengths of stock ...
    • O problema de corte de estoque unidimensional multiperíodo 

      Poldi, Kelly Cristina [UNIFESP]; Arenales, Marcos Nereu (Sociedade Brasileira de Pesquisa Operacional, 2010-04-01)
      The Multiperiod Cutting Stock Problem arises embedded in the production planning and programming in many industries which have a cutting process as an important stage. Ordered items have different due date over a finite ...
    • Porous stainless steel for biomedical applications 

      Mariotto, Sabrina de Fátima Ferreira; Guido, Vanessa; Yao Cho, Liu; Soares, Cristina Pacheco; Cardoso, Kátia Regina [UNIFESP] (ABM, ABC, ABPol, 2011-01-01)
      Porous 316L austenitic stainless steel was synthesized by powder metallurgy with relative density of 0.50 and 0.30 using 15 and 30 wt. (%) respectively of ammonium carbonate and ammonium bicarbonate as foaming agents. The ...
    • Ultrasonic inspection of AA6013 laser welded joints 

      Passini, Adriano; Oliveira, Aline Capella de [UNIFESP]; Riva, Rudimar; Travessa, Dilermando Nagle [UNIFESP]; Cardoso, Kátia Regina [UNIFESP] (ABM, ABC, ABPol, 2011-09-01)
      Interest in laser beam welding for aerospace applications is continuously growing, mainly for aluminum alloys. The joints quality is usually assessed by non-destructive inspection (NDI). In this work, bead on plate laser ...
    • Si-tricalcium phosphate cement: preparation, characterization and bioactivity in SBF 

      Motisuke, Mariana [UNIFESP]; Carrodeguas, Raúl García; Zavaglia, Cecília Amélia De Carvalho (ABM, ABC, ABPol, 2011-12-01)
      There are evidences considering the effectiveness of Si on enhancing biological properties of calcium phosphates; however, there are not many works relating to the Si-alpha-TCP bone cement. The influence of silicon doping ...
    • Beber e dirigir: características de condutores com bafômetro positivo 

      Campos, Valdir Ribeiro; Salgado, Rogério; Rocha, Mariela Campos; Duailibi, Sérgio [UNIFESP]; Laranjeira, Ronaldo [UNIFESP] (Faculdade de Medicina da Universidade de São Paulo, 2012-01-01)
      CONTEXT: Drinking and driving has not been adequately studied in Brazil so far. OBJECTIVE: The present study presents data from the first survey on drinking and driving behavior in a Brazilian state. METHOD: One thousand ...
    • Uma nova heurística para o problema de minimização de trocas de ferramentas 

      Chaves, Antonio Augusto [UNIFESP]; Senne, Edson Luiz França; Yanasse, Horacio Hideki [UNIFESP] (Universidade Federal de São Carlos, 2012-01-01)
      The minimization of tool switches problem (MTSP) seeks a sequence to process a set of jobs so that the number of tool switches required is minimized. This study presents a new heuristic for the MTSP. This heuristic has two ...
    • Algoritmos evolutivos e modelo HP para predição de estruturas de proteínas 

      Gabriel, Paulo H. R.; Melo, Vinicius Veloso de [UNIFESP]; Delbem, Alexandre C. B. (Sociedade Brasileira de Automática, 2012-02-01)
      Protein structures prediction (PSP) is a computationally complex problem. Simplified models of the protein molecule (such as the HP Model) and the use of evolutionary algorithms (EAs) are among the most investigated ...
    • Linear and nonlinear analysis of heart rate variability in healthy subjects and after acute myocardial infarction in patients 

      Kunz, V.c.; Borges, E.n.; Coelho, Regina Célia [UNIFESP]; Gubolino, L.a.; Martins, L.e.b.; Silva, E. (Associação Brasileira de Divulgação Científica, 2012-05-01)
      The objectives of this study were to evaluate and compare the use of linear and nonlinear methods for analysis of heart rate variability (HRV) in healthy subjects and in patients after acute myocardial infarction (AMI). ...
    • Análise da influência de dois processos distintos de moagem nas propriedades do pó precursor e do cimento de beta-TCP 

      Cardoso, H. A. I.; Motisuke, Mariana [UNIFESP]; Zavaglia, C. A. C. (Associação Brasileira de Cerâmica, 2012-06-01)
      There are several characteristics that put calcium phosphate cements in evidence, like its bioactivity and in vivo resorption. The influence of two milling processes on the morphological properties of the [beta]-tricalcium ...
    • Creep-age forming of AA7475 aluminum panels for aircraft lower wing skin application 

      Inforzato, Diego José; Costa Junior, Paulo Roberto; Fernandez, Fernando Ferreira; Travessa, Dilermando Nagle [UNIFESP] (ABM, ABC, ABPol, 2012-08-01)
      Creep-age forming (CAF) is an interesting process for the airframe industry, as it is able to form or shape panels into smooth, but complex, curvatures. In the CAF process, the ageing cycle of the alloy is used to relax ...
    • Application of an iterative method and an evolutionary algorithm in fuzzy optimization 

      Silva, Ricardo Coelho [UNIFESP]; Cantão, Luiza A.p.; Yamakami, Akebo (Sociedade Brasileira de Pesquisa Operacional, 2012-08-01)
      This work develops two approaches based on the fuzzy set theory to solve a class of fuzzy mathematical optimization problems with uncertainties in the objective function and in the set of constraints. The first approach ...
    • Microstructure evolution of AA7050 Al alloy during Equal-Channel Angular Pressing 

      Cardoso, Kátia Regina [UNIFESP]; Travessa, Dilermando Nagle [UNIFESP]; Jorge Junior, Alberto Moreira; Botta, Walter José (ABM, ABC, ABPol, 2012-10-01)
      High strength AA7050 aluminum alloy was processed by ECAP through route A in the T7451 condition. Samples were processed at 423 K, with 1 and 3 passes. The resulting microstructure was evaluated by optical microscopy (OM), ...
    • Heuristics for minimizing the maximum within-clusters distance 

      Fioruci, José Augusto; Toledo, Franklina M.b.; Nascimento, Mariá Cristina Vasconcelos [UNIFESP] (Sociedade Brasileira de Pesquisa Operacional, 2012-12-01)
      The clustering problem consists in finding patterns in a data set in order to divide it into clusters with high within-cluster similarity. This paper presents the study of a problem, here called MMD problem, which aims at ...
    • Síntese de whiskers de CaSiO3 em fluxo salino para elaboração de biomateriais 

      Motisuke, Mariana [UNIFESP]; Bertran, C. A. [UNIFESP] (Associação Brasileira de Cerâmica, 2012-12-01)
      Materials reinforcement by ceramic whiskers has been employed for a long time in a variety of industrial applications. Nevertheless, the materials by which these whiskers are commonly made of (carbide and silicon nitride) ...
    • Preparation and characterization of stainless steel 316L/HA biocomposite 

      Silva, Gilbert; Baldissera, Márcia Regina; Trichês, Eliandra de Sousa [UNIFESP]; Cardoso, Kátia Regina [UNIFESP] (ABM, ABC, ABPol, 2013-04-01)
      The austenitic stainless steel 316L is the most used metallic biomaterials in orthopedics applications, especially in the manufacture of articulated prostheses and as structural elements in fracture fixation, since it has ...
    • Electrophoretic deposition of BaTi0.85Zr0.15O3 nanopowders 

      Antonelli, Eduardo [UNIFESP]; Silva, Ronaldo Santos da; Bernardi, Maria Inês Basso; Hernandes, Antonio Carlos (ABM, ABC, ABPol, 2013-12-01)
      The present study reports the results of thick films (20-130 µm) produced through electrophoretic deposition of BaTi0.85Zr0.15O3 (BTZ) nanometric powders synthesized by the Pechini's method. The BTZ powderscalcined at ...
    • Depression during gestation in adolescent mothers interferes with neonatal neurobehavior 

      Barros, Marina Carvalho de Moraes [UNIFESP]; Mitsuhiro, Sandro Sendin [UNIFESP]; Chalem, Elisa; Laranjeira, Ronaldo [UNIFESP]; Guinsburg, Ruth [UNIFESP] (Associação Brasileira de Psiquiatria - ABP, 2013-12-01)
      Objective: To compare the neurobehavior of neonates born to adolescent mothers with and without depression during gestation. Methods: This prospective cross-sectional study included healthy term neonates born to adolescent ...
    • Perfil dos bolsistas PQ da área de Química baseado na Plataforma Lattes 

      Alves, Alexandre Donizeti; Yanasse, Horacio Hideki [UNIFESP]; Soma, Nei Yoshihiro [UNIFESP] (Sociedade Brasileira de Química, 2014-04-01)
      The Lattes Platform, an information system maintained by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), is the main source of information on Brazilian researchers. This paper presents a scientific ...
    • A GENETIC ALGORITHM FOR THE ONE-DIMENSIONAL CUTTING STOCK PROBLEM WITH SETUPS 

      Araujo, Silvio Alexandre De; Poldi, Kelly Cristina; Smith, Jim (Sociedade Brasileira de Pesquisa Operacional, 2014-05-01)
      This paper investigates the one-dimensional cutting stock problem considering two conflicting objective functions: minimization of both the number of objects and the number of different cutting patterns used. A new heuristic ...