PROCEDENCIA DE LA SUCESIVA SUSCRIPCIÓN DE CONTRATOS POR OBRA O FAENA EN LA LEGISLACIÓN CHILENAResearch Paper • August 22nd, 2011
La falta de referencia del Código del Trabajo y la serie de cuestionamientos que han realizado los tribunales de justicia, sobre si es procedente la sucesiva suscripción de contratos por obra o faena en la legislación chilena, dan lugar al desarrollo de la presente investigación.
DETERMINATION OF LAMINAR FLAME SPEED OF METHANE- AIR FLAMES AT SUBATMOSPHERIC CONDITIONS USING THE CONE METHOD AND CH* EMISSIONResearch Paper • July 24th, 2013
ABSTRACT: Experimental measurements of laminar flame speed for premixed methane-air flames were carried out for different equivalence ratios at subatmospheric conditions, 852 mbar and 298 K. The flames were obtained using a rectangular port burner with a water cooler system necessary to maintain the temperature of the mixture constant. An ICCD camera was used to capture chemiluminescence emitted by OH-CH radicals present in the flame and thus define the flame front. Laminar flame speed was calculated using the cone method and experimental results were compared with those reported by other authors and the numerical simulations made with the software CHEMKIN using the GRIMECH 3.0 mechanism. In this work it was found that decreasing the barometric pressure from 1013 mbar to 852 mbar generated an increase of 7% in the laminar flame speed.
EL AGENTE DE CARGA EN COLOMBIA, SUS RELACIONES CONTRACTUALES EN LA CADENA LOGÍSTICA Y LAS CONSECUENCIAS EN LOS SINIESTROSResearch Paper • May 5th, 2020
Leonardo Ronderos, quien dispuso de su tiempo y con su experiencia hizo excelentes aportes para dirigir por buen camino esta investigación.