Study and Production of Special Targets for DCE Reactions with 0vbb-Decay Final States in the NUMEN Experiment

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Design and Implementation of a Computer Vision System for an Autonomous Chess-Playing Robot

This work describes a mechatronic system composed by a robot arm that can play chess autonomously. The system is based on an industrial-grade robot manipulator, a computer vision system, and an open source chess engine. Classification algorithms were implemented in order to detect whether a given chessboard square is occupied, and in that case, if the piece is black or white. Such algorithms were compared in terms of their complexity of implementation, execution time and accuracy of predictions. To achieve an uniform illumination of the chessboard, a theoretical model of an LED illuminance curve was used to find the best orientation for each diode using a genetic algorithm. Both the support base for the LEDs and the chess pieces were made using a 3D printer. This implementation demonstrates the capabilities of the proposed vision-based system, whose complexity can be increased in the future for a number of applications.Facultad de Informátic

Design and Implementation of a Computer Vision System for an Autonomous Chess-Playing Robot

This work describes a mechatronic system composed by a robot arm that can play chess autonomously. The system is based on an industrial-grade robot manipulator, a computer vision system, and an open source chess engine. Classification algorithms were implemented in order to detect whether a given chessboard square is occupied, and in that case, if the piece is black or white. Such algorithms were compared in terms of their complexity of implementation, execution time and accuracy of predictions. To achieve an uniform illumination of the chessboard, a theoretical model of an LED illuminance curve was used to find the best orientation for each diode using a genetic algorithm. Both the support base for the LEDs and the chess pieces were made using a 3D printer. This implementation demonstrates the capabilities of the proposed vision-based system, whose complexity can be increased in the future for a number of applications.Facultad de Informátic

Numerical Investigation on the PM Emission Potential of Metal Sulphides Open Storage

Numerical simulations of the wind flow around isolated stockpiles of bulk material are performed to assess the emission potential (P) of particulate matter (PM) from the pile surfaces exposed to wind erosion (i.e., industrial wind erosion). The analysis is focused on two metal sulphides (lead and zinc sulphides), which are typically stored in the open yards of industrial plants that operate in the commodity sector for the production of non-ferrous metals. The EPA methodology is applied to the numerical simulated flow fields to quantify the effect of the wind stress over the erodible surfaces of the two ores. Two alternative open bay geometries and different volumes of material stocked within the enclosing walls are considered. Moreover, the protective effect of the walls is assessed by comparing the same pile configurations without walls. This is found to be highly dependent on the wind direction, as well as to the pile configuration. A methodology that can be easily customized to specific industrial sites is proposed to define the best storage configuration for PM emission prevention and control. View Full-Tex

Opioid Peptide Gene Expression in the Primary Hereditary Cardiomyopathy of the Syrian Hamster I. REGULATION OF PRODYNORPHIN GENE EXPRESSION BY NUCLEAR PROTEIN KINASE C

Prodynorphin gene expression was investigated in adult ventricular myocytes isolated from normal (F1B) or cardiomyopathic (BIO 14.6) hamsters. Prodynorphin mRNA levels were higher in cardiomyopathic than in control myocytes and were stimulated by treatment of control cells with the protein kinase C (PKC) activator 1, 2-dioctanoyl-sn-glycerol. Both chelerythrine and calphostin C, two PKC inhibitors, abolished the stimulatory effect of the diglyceride and significantly reduced prodynorphin gene expression in cardiomyopathic myocytes. Nuclear run-off experiments indicated that the prodynorphin gene was regulated at the transcriptional level and that treatment of nuclei isolated from control cells with 1, 2-dioctanoyl-sn-glycerol increased prodynorphin gene transcription, whereas chelerythrine or calphostin C abolished this transcriptional effect. Direct exposure of nuclei isolated from cardiomyopathic myocytes to these inhibitors markedly down-regulated the rate of gene transcription. The expression of PKC-alpha, -delta, and -epsilon, as well as PKC activity, were increased in nuclei of cardiomyopathic myocytes compared with nuclei from control cells. The levels of both intracellular and secreted dynorphin B, a biologically active product of the gene, were higher in cardiomyopathic than in control cells and were stimulated or inhibited by cell treatment with 1,2-dioctanoyl-sn-glycerol or PKC inhibitors, respectively

Mineral requirements of dairy sheep

This paper reviews the major (Calcium, Phosphorus, Potassium, Sodium, Chlorine, Sulphur, Magnesium) and the trace elements (Iron, Copper, Cobalt, Iodine, Manganese, Zync, Molybdenum, Selenium) that play an essential role in animal metabolism. For each one the authors indicate not only the function, but also the more recent advances in terms of daily requirements for dairy sheep

Robot ajedrecista: sistema mecatrónico aplicado a la toma de decisiones

Este trabajo presenta un sistema mecatrónico compuesto por un brazo robótico que juega ajedrez de forma autónoma. El sistema se basa en un robot manipulador de tipo industrial, un sistema de visión artificial, y un motor de juego basado en software libre. La robótica aplicada a juegos interactivos constituye un excelente problema para explorar la colaboración humana-robot, ya que presenta una estructura cuya complejidad puede ser gradualmente incrementada. Por lo tanto, este desarrollo debe entenderse como una primera aplicación exitosa de un sistema mecatrónico de toma de decisiones factible de migrar a otros usos y contextos.Sociedad Argentina de Informática e Investigación Operativa (SADIO

Robot ajedrecista: sistema mecatrónico aplicado a la toma de decisiones

Este trabajo presenta un sistema mecatrónico compuesto por un brazo robótico que juega ajedrez de forma autónoma. El sistema se basa en un robot manipulador de tipo industrial, un sistema de visión artificial, y un motor de juego basado en software libre. La robótica aplicada a juegos interactivos constituye un excelente problema para explorar la colaboración humana-robot, ya que presenta una estructura cuya complejidad puede ser gradualmente incrementada. Por lo tanto, este desarrollo debe entenderse como una primera aplicación exitosa de un sistema mecatrónico de toma de decisiones factible de migrar a otros usos y contextos.Sociedad Argentina de Informática e Investigación Operativa (SADIO

Robot ajedrecista: sistema mecatrónico aplicado a la toma de decisiones

Este trabajo presenta un sistema mecatrónico compuesto por un brazo robótico que juega ajedrez de forma autónoma. El sistema se basa en un robot manipulador de tipo industrial, un sistema de visión artificial, y un motor de juego basado en software libre. La robótica aplicada a juegos interactivos constituye un excelente problema para explorar la colaboración humana-robot, ya que presenta una estructura cuya complejidad puede ser gradualmente incrementada. Por lo tanto, este desarrollo debe entenderse como una primera aplicación exitosa de un sistema mecatrónico de toma de decisiones factible de migrar a otros usos y contextos.Sociedad Argentina de Informática e Investigación Operativa (SADIO

Design and Implementation of a Computer Vision System for an Autonomous Chess-Playing Robot

This work describes a mechatronic system composed by a robot arm that can play chess autonomously. The system is based on an industrial-grade robot manipulator, a computer vision system, and an open source chess engine. Classification algorithms were implemented in order to detect whether a given chessboard square is occupied, and in that case, if the piece is black or white. Such algorithms were compared in terms of their complexity of implementation, execution time and accuracy of predictions. To achieve an uniform illumination of the chessboard, a theoretical model of an LED illuminance curve was used to find the best orientation for each diode using a genetic algorithm. Both the support base for the LEDs and the chess pieces were made using a 3D printer. This implementation demonstrates the capabilities of the proposed vision-based system, whose complexity can be increased in the future for a number of applications.Facultad de Informátic