Buscar
Mostrando ítems 51-60 de 22172
The intramolecular Heck reaction and the synthesis of indolizidinone, quinolizidinone and benzoazepinone derivatives
(Georg Thieme Verlag KgStuttgartAlemanha, 2002)
Families of gauge conditions in BV formalism
(Springer, 2017-07-13)
In BV formalism we can consider a Lagrangian submanifold as a gauge condition. Starting with the BV action functional we construct a closed form on the space of Lagrangian submanifolds. If the action functional is invariant ...
Segurança em instalações elétricas provisórias em canteiros de obras
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Engenharia Civil - PPGECiv, 2007-03-09)
Temporary electric installations occur in small, average and great construction-sites and many times
for being of temporary nature are unsafe and precariously executed. The electricity, source of
potential danger even ...
Sturm-Liouville boundary conditions for a second order ODE.
(2011-10-13)
We study the semilinear second order ODE u00 + g(t, u) = 0 under the following Sturm- Liouville boundary condition au(0) + bu0(0) = u0 and cu(T) + du0(T) = uT . We obtain solutions by topological methods. Moreover, we show ...
Influência do tipo de ligação no desempenho estrutural de treliças de bambu mosô
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia CivilUTFPR, 2016-07-29)
The use of bamboo as structural element is a reality in many countries in Asia and South America, even with different building methodologies. Although some bamboo species, as Moso (Phyllostachys Pubescens) have excellent ...
Service quality factors in the construction sector: a literature review
(IOP Publishing, 2020)
Published under licence by IOP Publishing Ltd. This paper consists of an exploratory literature review whose main research objectives were the identification of the service quality factors that are considered more important ...
Performance Evaluation of First-Order Hydraulic Models for COD Removal in Horizontal Subsurface-Flow Constructed Wetlands
(Asce-amer Soc Civil Engineers, 2017-10-01)
The aims of the present study are to verify the performance of four first-order hydraulic models and identify the model that best described the kinetics of the chemical oxygen demand (COD) removal in constructed wetlands. ...
Effect of a positive construction sector demand shock on bankruptcy : evidence from natural disasters in France
(2021)
In this thesis, I use data on insolvency proceedings at the “département” level, a decree dataset of natural disasters (GASPAR) as well as meteorological observations on precipitations to provide first evidence on how ...
Condições de trabalho e saúde psíquica dos operários da construção civil
(Universidade Federal de Minas GeraisUFMG, 2012-06-26)
Considering that the construction sector is in the cycle of economic growth, and at the same time it faces management problems, as well as difficulty to attract labor force, this research have the goal to explore the ...