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In this workshop we propose a USB based control platform with a high speed USB communication interface using the Linux based free software Scilab/XCos/RTAI. The workshop consists of six hands on presentations on the use of the experimental platform for teaching the main automatic control concepts such as stability, model, transfer function, current loop, parameter tuning, proportional control action,...
Cu-doped zinc oxide (ZnO:Cu) powders were synthesized by the co-precipitation technique, by using different doping concentrations (1, 3 and, 5 at %). The structural properties of the powders were analyzed by X-ray diffraction (XRD), the morphology was investigated by scanning electron microscopy (SEM). Cu-doped ZnO and ZnO undoped pellets were manufactured with a pressing machine, using a pressure...
Development of suitable electrochemical transducers (e.g. electrodes) is a major concern to obtain efficient sensing and biosensing platforms. Graphene has attracted attention as a potential material for electrochemical transduction, but its massive production remains as a challenge. In this work, the development and characterization of graphene electrodes based on thermal reduction by laser action...
This paper focuses on the influence of PVP concentration on physical properties of the silver nanoparticles (AgNps). AgNps were synthesized by polyol method in the presence of Polyvinylpyrrolidone (PVP) acting as a stabilizing agent in a molar relation of AgNO3: PVP = 1:1, 1:1.5 and 1:2. The optical and morphological characterizations of synthesized AgNps were performed using ultra violet visible...
Pattern recognition is a widespread application of the Wavelet Transform (WT). Sometimes, in real-time implementations a delay as low as possible is desired in the pattern detection process. This is especially important in applications such as breath or electrocardiogram (ECG) monitoring for life-support. Nevertheless, any real-time WT system which is actually implemented can present different sources...
The Localization of Compact Invariant Sets theory, define a region in the state space where are located all compact invariant sets of a dynamical system. This work explore the global dynamics of the myeloid cells in a tumor-immune system model, this model describes the interactions of myeloid, tumor and specific immune response cells. The localizations sets of immature and mature myeloid cell populations...
In this paper an implementation of the Inverse Numerical Laplace Transform (INLT) on a Field Programmable Gate Array (FPGA) is presented. A brief description of INLT algorithms based on FFT are made and its MATLAB implementation is performed in order to have a comparison basis with FPGA results. A fixed point representation is used and it is optimized using fi MATLAB object. INLT is basically composed...
This article presents the design and construction of a mechanism for emulating load forces caused by the road conditions and friction over an electric power assisted steering (EPAS). This mechanism uses extension springs and a rack-and-pinion mechanism to emulate these load forces. The purpose of devising this mechanism is to build an EPAS system test bench, that allows observing and testing the operation...
A novel control strategy is proposed for a bidirectional multiport single phase two stage microinverter without electrolytic capacitor. The application of this converter is for power factor correction under non-linear grid tied load. The converter is composed of a triple active bridge series-resonant DC/DC converter cascaded with a voltage source inverter where a film capacitor is used in the DC-Link...
Inventory regulation and control to a desired time-varying inventory level is accomplished via an accurate on line observer-based demand rate estimation, followed by a demand rate satisfaction effort incorporated on the production rate decision rule. An extended demand rate observer is shown to efficiently allow for production rate to accurately match highly fluctuating uncertain demand rates, with...
This paper introduces a color image encryption algorithm that relies on fractional chaotic systems as source of pseudorandom numbers, the decryption process needs to reconstruct the states of the fractional chaotic system, for this purpose a fractional exponential polynomial observer will be used, this observer has the characteristic that makes synchronization error decrease faster than an exponential...
Apiculture has been a method for harvesting honey and helping crop proliferation, nonetheless late climate changes have affected bee population. Having an automated hive as a tool for beekeepers would help to increase and protect current bee population guaranteeing crop proliferation needed for human consumption. In this paper, we propose an electronic beehive that recollect honey automatically, regulate...
Focused ultrasound can be applied from low intensity ultrasound for non-thermal therapy as drug deliver, gene therapy, etc. to high intensity ultrasound for tumor ablation in oncology. However, to have an adequate therapy planning, it is required to fully understand the parameters affecting the acoustic field produced by concave radiators. Traditional ideal models usually do not produce adequate results...
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