Time Constraints
Mostrando 13-24 de 355 artigos, teses e dissertações.
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13. ANALYSIS OF MIXED INTEGER PROGRAMMING FORMULATIONS FOR SINGLE MACHINE SCHEDULING PROBLEMS WITH SEQUENCE DEPENDENT SETUP TIMES AND RELEASE DATES
ABSTRACT The scheduling of jobs over a single machine with sequence dependent setups is a classical problem setting that appears in many practical applications in production planning and logistics. In this work, we analyze six mixed-integer formulation paradigms for this classical context considering release dates and two objective functions: the total weigh
Pesqui. Oper.. Publicado em: 09/05/2019
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14. Múltiplas exposições ao risco de faltar ao trabalho nas escolas da Educação Básica no Brasil
Resumo: O objetivo do estudo foi identificar as múltiplas exposições ao risco de faltar ao trabalho, independentemente do motivo relatado pelos professores (n = 6.510). Foram utilizados dados de um inquérito telefônico sobre a saúde, condições de trabalho e absenteísmo entre professores da Educação Básica no Brasil (Estudo Educatel, 2015/2016). A
Cad. Saúde Pública. Publicado em: 15/04/2019
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15. Experimental study for evaluation of a low-cost spray cryotherapy system
RESUMO Objetivo Avaliar a exequibilidade e a aplicação de um sistema de baixo custo de crioterapia. Métodos Estudo experimental realizado com um suíno da raça Landrace, 25kg, submetido à cervicotoracolaparotomia longitudinal, com exposição de traqueia, tórax e abdome. Procedemos ao congelamento das estruturas em tempos diferentes (5, 10 e 15 segun
Einstein (São Paulo). Publicado em: 08/04/2019
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16. Reconfiguration of multi-stage tensegrity structures using infinitesimal mechanisms
Abstract The use of tensegrity structures in soft robotics has seen an increased interest in recent years thanks to their mechanical properties, but the control of these systems remains an open problem. This paper presents a reconfiguration strategy for actuated multi-stage tensegrity structures. The algorithm works on the principle of using the infinitesima
Lat. Am. j. solids struct.. Publicado em: 21/03/2019
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17. Pharmacokinetics of antidepressants in patients undergoing hemodialysis: a narrative literature review
We conducted a narrative literature review on studies that specifically addressed the pharmacokinetics of antidepressants in patients on hemodialysis. The search included the MEDLINE, LILACS, and Web of Knowledge databases and combined Medical Subject Headings and free-text search terms for chronic kidney disease, end-stage renal disease, renal replacement t
Braz. J. Psychiatry. Publicado em: 07/03/2019
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18. Field compaction control by way of correlation between elasticity module and layer rigidity with moisture content
Abstract The present research had as its basic objective to contribute with the improvement in the quality control evaluation of the compacting process in road works. The real contribution of the survey is to establish an innovative way of controlling the compaction process in the field, with employment of the Humidity versus Rigidity and the Humidity versus
REM, Int. Eng. J.. Publicado em: 2019-03
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19. The Impact of Private Equity and Venture Capital Funds on post-IPO Operational and Financial Performance in Brazilian invested companies
RESUMO O presente artigo buscou analisar o legado e sua persistência ao longo do tempo, em termos de políticas de financiamento e performances operacional e financeira, de empresas investidas por fundos de Private Equity e Venture Capital (PE/VC). A indústria de PE/VC é caracterizada pela função de identificar empresas com grandes potenciais de retorno
BBR, Braz. Bus. Rev.. Publicado em: 2019-02
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20. Estudio y caracterización del efecto de compuestos con titanio sobre el sistema hidruro Li-B-Mg-H con alta capacidad de almacenamiento de hidrógeno
ABSTRACT One of the main constraints for the implementation of hydrogen as energy carrier is the lack of an efficient and safe hydrogen storage system. Hydrogen storage in solid state through hydride compounds formation is a potential alternative to address this problem. In this work, it is studied the effect of different titanium based compounds (TiB2, LixT
Matéria (Rio J.). Publicado em: 19/07/2018
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21. A New Buffer in Impact Reduction for Aerospace Applications
Abstract The aim of this paper is to introduce a new buffering mechanism in impact reduction during assembly process of two space vehicles. Probe-cone mechanism, due to its computational easiness, is employed to study impact interaction between multibody systems. The proposed buffer with a compact structure includes a probe equipped with axial and torsional
Lat. Am. j. solids struct.. Publicado em: 14/06/2018
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22. Desarrollo de la competencia de análisis de la idoneidad didáctica en futuros profesores de matemáticas
Abstract In this article we describe analyse and evaluate the implementation of an educational design to develop the prospective mathematics teacher’s didactical analysis and reflection competence. Planning of the experience, its implementation, and evaluation are based on the application of theoretical tools of the onto-semiotic approach. In several studi
Educ. Pesqui.. Publicado em: 14/05/2018
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23. Successes and failures of sixty years of vector control in French Guiana: what is the next step?
Since the 1940s, French Guiana has implemented vector control to contain or eliminate malaria, yellow fever, and, recently, dengue, chikungunya, and Zika. Over time, strategies have evolved depending on the location, efficacy of the methods, development of insecticide resistance, and advances in vector control techniques. This review summarises the history o
Mem. Inst. Oswaldo Cruz. Publicado em: 12/03/2018
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24. Estimation of Kinetic Parameters During the Treatment of Steelmaking Slag Expansibility Data
Steelmaking slag (SS) is one of the largest generation waste in the integrated and semi-integrated plants, but it has application restrictions due to its high expansibility. To overcome these constraints, this research had as its main objective the reactions is kinetics parameters estimation that result in the expansion of SS using the Arrhenius global equat
Mat. Res.. Publicado em: 08/01/2018