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Improving manufacturing cycle efficiency through new multiple criteria data envelopment analysis models: an application in green and lean manufacturing processes
(2020-01-01)
The Green & Lean Manufacturing organisational strategy emphasises waste and environmental impact reduction, efficiency increase, quality improvement, and cycle time reduction by eliminating non-value-added activities. ...
Photonic efficiency of the photodegradation of paracetamol in water by the photo-Fenton process
(2015)
An experimental study of the homogeneous Fenton and photo-Fenton degradation of 4-amidophenol (paracetamol, PCT) is presented. For all the operation conditions evaluated, PCT degradation is efficiently attained by both ...
Maximum likelihood estimation in alternating renewal processes under window censoring
(Taylor & Francis, 2006-12)
Consider a process that jumps back and forth between two states, with random times spent in between. Suppose the durations of subsequent on and off states are i.i.d. and that the process has started far in the past, so it ...
The Efficiency and Yield Measurement of the Enzymatic Degumming Process
(MedCrave, 2016-06)
Crude oil obtained by oilseed processing has to be refined before the consumption in order to remove undesirable compounds. These components are commonly eliminated by chemical refining or physical refining methods. The ...
Information technology and the efficiency of the Brazilian Judiciary System
(2012)
This article presents an analysis of the impact of Information Technology (IT) investments in the efficiency of the Brazilian Judiciary System. In order to conduct this investigation, it was adopted the case study method ...
Heterogeneous photo-fenton process using iron-modified regional clays as catalysts: Photonic and quantum efficiencies
(Springer Heidelberg, 2019-03)
A regional raw clay was used as the starting material to prepare iron-pillared clays with different iron contents. The catalytic activity of these materials was tested in the heterogeneous photo-Fenton process, applied to ...
Photosynthetic efficiency and rate of CO2 assimilation by Arthrospira (Spirulina) platensis continuously cultivated in a tubular photobioreactor
(WILEY-BLACKWELLHOBOKEN, 2012)
Similar to other photosynthetic microorganisms, the cyanobacterium Arthrospira platensis can be used to produce pigments, single cell proteins, fatty acids (which can be used for bioenergy), food and feed supplements, and ...
High Nd3+→Yb3+ energy transfer efficiency in tungsten-tellurite glass: A promising converter for solar cells
(2017-05-01)
This work reports on the energy transfer efficiency for Nd3+/Yb3+ co-doped tellurite glasses (80TO2-20WO3, in mol%,). The correlation between Yb3+ ion concentration and the downconversion mechanism was investigated using ...
Thermoeconomic analysis: A criterion for the selection of cogeneration systems
(1996-12-01)
The economical viability of three cogeneration schemes as supplying alternatives for a hypothetical industrial process has been studied. A cost appropriation method based on Valero's studies (1986) has been used. This ...