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Conference proceedings front matter may contain various advertisements, welcome messages, committee or program information, and other miscellaneous conference information. This may in some cases also include the cover art, table of contents, copyright statements, title-page or half title-pages, blank pages, venue maps or other general information relating to the conference that was part of the original...
In this paper, we study a new class of Radon transform defined on circular cones called the conical Radon transform (CRT). There has been a substantial spike of interest towards this integral transform in the last decade mainly due to its connection to the mathematical models of several applications used in different domains such as nuclear industry, homeland security, astrophysics etc. This paper...
In this paper COMSOL model is used to model the s-parameters of the electromagnetic shielding of layer/layers of Polyaniline (PAni) for Wi-Fi Electromagnetic Interference (EMI) shielding. PAni has a good future for minimizing the problems with Electromagnetic Shielding (EMS), and will be increasingly be used to provide protection from Electromagnetic Radiation (EMR) and Electromagnetic Interference...
We present a Rich variant of the Profitable Tour Problem (RPTP) arising when customer requests involve several products and multi-compartment vehicles are used. The RPTP addressed may be considered as a variant of the capacitated profitable tour problem with time windows and incompatibility constraints. We propose a Variable Neighborhood Search Algorithm embedded with an Adaptive Large Neighborhood...
In the present paper we investigate the equilibrium customer behavior in a single server Markovian M2/M/1 queue with batch arrivals of two customers. We examine the various cases with respect to the level of information available to customers before they make this decision. More specifically, at their arrival epoch, the customers may or may not know the number of customers present in the system. In...
Nowadays, garment industries in Tunisia are adopting new strategies that producing a very large variety of garments in extremely small quantities. This means a practical difficulty of changing tools and production lines frequently. Here, a study has been carried out to find out the changeover time and the kinds of wastes in the sewing line. For two months, a series of observations and analyses of...
A coupled, physically-based, spatially distributed hydrological model of surface and groundwater flow is being set up to assess, for various scenarios, the spatio-temporal patterns of response variables such as groundwater recharge, groundwater levels, and streamflow for a semi-arid catchment in northeastern Tunisia. The modeling scenarios will explore the impacts of surface and subsurface heterogeneities,...
Transit signal priority (TSP) is a control strategy that provides preferential treatments for transit vehicles. This strategy has shown potential to minimize delay with negligible or slight impact on non-transit vehicles. It is also an important strategy for improving and promoting schedule adherence and service reliability. This paper shows a microscopic simulation study to identify the impact of...
In this paper, a simplified small-signal modeling approach for GaN HEMTs has been developed. The main advantage of this approach is its dependency on only cold pinch-off S-parameter measurements to extract the parasitic elements of the device. S-parameter measurements at different bias conditions in addition to physical based analysis have been used to validate the accuracy and reliability of the...
In the last few decades, the resource-constrained project-scheduling problem has become the key of the success of researching project in the enterprises and has become a popular problem type in operations research. However, due to its strongly NP-hard status, the effectiveness of exact optimization procedures is restricted to relatively small instances. In this paper, we present a genetic algorithm...
In this paper, an Artificial Bee Colony (ABC) metaheuristic is adapted to find Pareto optimal solutions set for Goal Programming (GP) Problems. At first, the GP model is converted to a multi-objective optimization problem (MOO) of minimizing deviations from fixed goals. At second, the ABC is personalized to support the MOO by means of a weighted sum formulation for the objective function: solving...
In this paper, the key electrical parameters behavior of Gate Stack Double Gate (GSDG) MOSFET are studied and optimized using multi-objective genetic algorithms (MOGAs) for nanoscale CMOS-based applications. The transconductance and the OFF-current are the key electrical parameters which have been determined by the analytical explicit expressions in saturation and subthreshold regions. The optimized...
In this paper, we present the effect of the bank of capacity linked to stator windings to stabilize the amplitude of produced voltage. The machine that we study is the Double Fed Induction Generator (DFIG). The association of this generator to the wind turbine give birth the Wind Energy Conversion System (WECS). Looking to the no stability of the wind and it variable speed, this condition makes very...
The inclusion interactions between β-cyclodextrin (β-CD) and diclofenac (DCF) were simulated using the semi-empirical PM3 and ONIOM (B3LYP/3-21g: PM3) methods. The modeling results showed that the most stable geometry of DCF into β-CD complex is B orientation inclusion, in which the phenyl acetate moiety is included inside the hydrophobic cavity of β-CD. The results showed that the binding energy...
The increasing need for optimality in the presence of uncertainty motivates the development and application of Model Predictive Control. In this paper we apply the Stochastic Model Predictive Control to optimize the cost of storage and transport for a multi-product and a multi-level supply chain under a stochastic demand. We use the dynamic programming to find the control policies resolving the problem.
The flooding problem was been imposed to the man since ever. Many natural disasters have led him to reflect on the power and frequency of floods. In the past, interest was mainly the knowledge of the maximum values of the water depth and flow. Currently, interest is turning more and more to the characteristics of hydrographs and their variation during flood propagation of river's tributary. Models...
This work presents a coupled motion of a helicopter rotor blade and stability analysis response in the hovering flight condition reinforced by GFRP fiber. The search for increasingly high performances in the field of the helicopters brings to the development of materials having higher rigidities and specific resistances. The use of the composite material blades which are not sensitive to corrosion,...
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