Buscar
Mostrando ítems 1-10 de 528
A mathematical model for determining timetables that minimizes the number of students with conflicting schedules
(2013-10-25)
With the increasing complexity of educational initiatives, several challenges arise as to appropriately allocate human and material resources or how to select alternative investments within a portfolio. Due to the complexity, ...
Dynamics of a continuous flash fermentation for butanol production
(2010-12-27)
The ABE (acetone, butanol, ethanol) fermentation is characterized by its low productivity. In this paper, this issue is overcome with an innovative industrial process that employs the flash fermentation technology. The ...
A disease evolution model with uncertain parameters
(2001-12-01)
In this study we consider the SIS epidemiological model (susceptible-infected-susceptible) in which the transmission and recuperation rates are considered fuzzy sets. The concepts of possibility measures and fuzzy expectancy ...
Automatic shadow segmentation in aerial color images
(2003-01-01)
A robust and efficient technique to segment shaded areas in aerial color images is presented here. This technique is based on the physical phenomenon of atmospheric dispersion of the sunlight most well known as the Rayleigh ...
Electromagnetic Transient Simulations for Undergraduate Students Using a Low Complexity Numeric Routine
(Ieee, 2010-01-01)
This paper presents a mathematical model to simulate and analyze electromagnetic transients in transmission lines using a mono-phase representation of these lines comparing results models with and without frequency influence ...
Electromagnetic transient simulations for undergraduate students using a low complexity numeric routine
(2010-12-06)
This paper presents a mathematical model to simulate and analyze electromagnetic transients in transmission lines using a mono-phase representation of these lines comparing results models with and without frequency influence ...
Synthesis and Optimization of Majority Expressions through a Mathematical Model
(2020-08-01)
In this paper, the 3MS (Majority Math Model Solver) algorithm is proposed for use in the optimization of majority logic circuits. The new proposed algorithm receives a sequence of binary numbers as input, representing truth ...
Flexible Job Shop Problem with Variable Machine Flexibility
(2019-01-01)
We analyze machine flexibility in the context of the flexible job shop problem. In general, the decisions about machine flexibility are taken in advance (the data sets already contain this information). Based on a mathematical ...
Flashover phenomenon: an analysis with influence of the thickness of the layer pollution of the high voltage polluted insulators
(Institute of Electrical and Electronics Engineers (IEEE), 1994-12-01)
Results of the analysis of dynamic behavior of flashover phenomenon on the high voltage-polluted insulators are presented. These results were taken from a mathematical and an experimental model that introduce the variable ...
Modeling upper eyelid kinematics during spontaneous and reflex blinks
(Elsevier B.V., 2010-08-15)
To test a mathematical model for measuring blinking kinematics.Spontaneous and reflex blinks of 23 healthy subjects were recorded with two different temporal resolutions. A magnetic search coil was used to record 77 blinks ...