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Determination of volumetric uncertainty for geological bodies detected by boreholes
(Elsevier B.V., 2015-04-01)
The volume of a mineralized body depends on the information available on borders between mineralization and host rocks. Sometimes, information is limited and a precise determination of the volume of ore body is not possible. ...
Effectiveness of the standard evaluation method for hydraulic nozzles employed in stored grain protection trials
(SOC COLOMBIANA ENTOMOLOGIA-SOCOLEN, 2008)
In stored grains, smaller depositions and great variation with respect to theoretical insecticide doses are frequently found. The objective of this work was to study the effectiveness of the standard method (ISO 5682/1-1996) ...
Effect of working pressure and spacing of nozzles on the quality of spraying distribution
(2022-01-01)
The correct placement of the crop protection product on the target depends on the adequate distribution provided by the spray nozzles. In this research, the objective was to verify the influence of the working pressure and ...
Effect of angled spray nozzle designs on spray distribution and droplet spectrum1Efeito de pontas de pulverização de jato angulado sobre a distribuição e espectro de gotas
(2021-01-01)
New technologies have been developed to promote uniform, sustainable, safe and effective application of phytosanitary products. In this scenario, spray nozzles of different designs and jet angles can optimize application. ...
Investigating the impact of the estimation error of fracture intensity (P-32) on the evaluation of in-situ rock fragmentation and potential of blocks forming around tunnels
(Pergamon-Elsevier, 2020)
The purpose of this work is to highlight the impact of input parameters uncertainty in discrete fracture network (DFN) models and their engineering applications. We show how the error of an input parameter, here the ...
Stratified Sampling Applied to Estimation of the Volumetric Fraction of Alumina in Cast Metal Matrix Composites
(Carl Hanser Verlag, 2009-08-01)
In this paper, we propose a statistic procedure for estimating the amount of alumina incorporated in a particulated metal matrix composite synthesized by the stir casting method. Composite specimens, consisting of A356 Al ...
Stratified Sampling Applied to Estimation of the Volumetric Fraction of Alumina in Cast Metal Matrix Composites
(Carl Hanser Verlag, 2009-08-01)
In this paper, we propose a statistic procedure for estimating the amount of alumina incorporated in a particulated metal matrix composite synthesized by the stir casting method. Composite specimens, consisting of A356 Al ...