739 research outputs found

    DESCRIPCIÓN ARQUITECTÓNICA DEL SITIO LA MALINCHE, EN EL POSCLÁSICO TARDÍO, TENANCINGO, ESTADO DE MÉXICO

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    El presente trabajo de tesis consta de 4 capítulos y se basa principalmente en el Área de Arquitectura Publica del sitio La Malinche localizada en la cima del cerro del mismo nombre en Tenancingo, Estado de México. Capítulo I describe el entorno geográfico así como el clima, fisiografía, geología,hidrología, edafología y la vegetación. Esta última se describió de manera regional además de elaborar un catálogo representativo de la vegetación que se localiza en el Área de Arquitectura Pública, la cual aporta de forma específica el tipo de flora que se tiene actualmente en el sitio, dicha información es importante ya que no existe esta información en trabajos previos y porque en la cima del cerro existe actualmente un uso continuo y se observa vegetación secundaria en el lugar. Capítulo II presenta los antecedentes de investigación del sitio así como la metodología que se utilizó para el trabajo realizado en el sitio arqueológico. La Malinche el cual se divide en dos partes importantes. La primera se refiere a la recolección de material cerámico, con lo que se pretende reforzar las posibles actividades realizadas en el Área de Arquitectura Pública, empleando una metodología de recolección de manera oportunista y así poder relacionarla, utilizando el análisis de tipo-variedad. La segunda abarca desde la recolección de datos utilizados para realizar el croquis del sitio y la planimetría, elaboración de modelos de la arquitectura, apoyándome herramientas tecnológicas como el GPS y usos de programas de ingeniería civil así como programas para 3D, también se elaboró un listado de conceptos que sirvieron para la descripción del sitio y así cumplir con el objetivo general de este texto: Describir la arquitectura del sitio La Malinche. Capítulo III se describe la distribución de las estructuras y la integración de los espacios donde los atributos considerados para este sitio corresponden a los procesos de desarrollo constructivo que presenta Morelos (1993) y son retomados para este trabajo estos procesos son el espacial definido dos rangos la plaza rodeada de estructuras, los espacios de circulación; planos y formas (volumen) que se refiere a las estructuras, edificios, habitaciones, adoratorios, recintos, templos, altares, plataformas, etcétera; y por ultimo al de vialidad el cual se refiere a los espacios destinados a la circulación. De este modo se describe el sitio de manera general abarcando estos procesos para el Área de Arquitectura Pública, además se realizó planos para cada proceso. Capítulo IV se describe cada una de las estructuras de las que se hace referencia a su ubicación, colindancias, el material constructivo localizado como Hallazgo Especial, de los que se efectuó un análisis macroscópico para identificar el material, además de analizar el material cerámico localizado cerca de las estructuras de los que se describieron los nuevos tipos cerámicos. Finalizando con las conclusiones, recomendaciones, así mismo se presenta a manera de anexo un catálogo del modelo de elevación del terreno y las estructuras, mismos que se crearon en el programa AutoCAD Civil3D 2013 3D así como del perímetro del Área de Arquitectura Pública y la bibliografía que apoya la presente investigación

    Monitoring and Charge-Control of Lead-Acid Batteries in Photovoltaic Applications

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    This paper presents a microcontroller-based charge controller suitable for photovoltaic applications. The controller performs temperature-compensated charge control. It also monitors and stores those parameters that provide an indication of batteries' state of charge and state of health: Panel's voltage, battery's voltage and current, current demanded by a load and temperature

    Routing of embryonic arrays using genetic algorithms

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    This paper presents a genetic algorithm (GA) that solves the problem of routing a multiplexer network into a MUXTREE embryonic array. The procedure to translate the multiplexer network into a form suitable for the GAbased router is explained. The genetic algorithm works on a population of configuration registers (genome) that define the functionality and connectivity of the array. Fitness of each individual is evaluated and those closer to solving the required routing are selected for the next generation. A matrix-based method to evaluate the routing defined by each individual is also explained. The output of the genetic router is a VHDL program describing a look-up table that receives the cell co-ordinates as inputs and returns the value of the corresponding configuration register. The routing of a module-10 counter is presented as an example of the capabilities of the genetic router. The genetic algorithm approach provides not one, but multiple solutions to the routing problem, opening the road to a new level of redundancy where a new "genome" can be downloaded to the array when the conventional reconfiguration strategy runs out of spare cells

    Electronic Assisting Violin Tuner

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    This paper presents the design concept, implementation and verification process of the Electronic Assisting Violin Tuner (EAVT). The analysis of the violin sound to extract the frequency information was done using a Goertzel filter which was optimised and embedded to a microcontroller. The resulting frequency information is used to control actuators to tune the violin. Safety issues have also been considered and appropriate actions have been taken to reduce the risk of accidental string breakages which could result in injuring the violinist. The goal of this project was to develop a device to assist in tuning every string of the violin. This project was undertaken with intentions that it could be further developed to increase the stability and robustness to the level that the prototype is fit for the market. It is therefore expected that there is still many areas of this project to improvement upon

    Modular Autonomous Robotics Platform for Educational Use

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    Robotics is a field that continues to grow as robots become common in environments as varied as households and the battlefield. This paper presents a low cost robotics development platform using commercial off-the-shelf parts for educational and academic use. It is a direct response to the high cost and limited functionality of existing platforms. A navigation and obstacle-avoidance Fuzzy Controller is provided to accelerate the typical development process for a mobile robot. The fundamental aim is to facilitate future robotics projects by producing an inexpensive, modular and highly accessible platform that improves upon existing commercial offerings

    FPGA Implementation of Musical Notes Recognition for Automatic Transcription System

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    Musical transcription from musical data into score is commonly performed by software running on a PC. This involves significant delay, which can be considerably reduced by hardware implementation. This paper presents a hardware design and implementation of the frequency identification system, one of the most important functions in musical transcription, accomplished through the use of Fast Fourier Transform (FFT) algorithm implemented in a Field Programmable Gate Array (FPGA)

    Reconfigurable FIR Filter in FPGA

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    Finite Impulse Response (FIR) filters are widely used in Digital Signal Processing (DSP) systems. The throughput of real-time, FIR filters is limited by the processing capability of its implementation. Software implementations are very flexible but the inherent sequential execution of programs makes them slow. The fastest FIR filters are those implemented in dedicated hardware, but these systems are usually fixed and modifications to the filter are not possible. This paper presents the design and implementation of a Field-Programmable Gate-Array (FPGA)-based, FIR filter. By exploiting the field-programmability of FPGAs it is possible to create different filters with fixed functionality, or even create adaptive filters whose parameters are adjusted in real-time by some intelligent algorithm

    Simulation Platform for the Evaluation of Robotic Swarm Algorithms

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    One major problem in the development of robotic swarms is the slow process of testing. Testing different algorithms or variations of a single one using physical robots requires reprogramming every robot in the swarm before every run. Hence, the speed at which a robotic swarm can be tested is highly dependent on the time taken to reprogram the entire swarm and the physical speed at which the swarm operates. This paper details the development of a computer-based simulation platform for rapid development and testing of swarm-intelligence algorithms in an effort to mitigate the current bottleneck imposed by testing. The simulator uses an object-oriented programming environment to facilitate the implementation and modification of swarm algorithms. Simulation of food foraging in an ant-hill scenario is used to demonstrate the effectiveness of the simulator

    Text-to-Braille Translator in a Chip

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    This paper describes the hardware implementation of a text to Braille Translator using Field-Programmable Gate Arrays (FPGAs). Different from most commercial software-based translators, the circuit presented in this paper is able to carry out text-to-Braille translation in hardware. The translator is based on the translating algorithm, proposed by Paul Blenkhorn [1]. The Very high speed Hardware Description Language (VHDL) was used to describe the chip in a hierarchical way. The test results indicate that the hardware-based translator achieves the same results as software-based commercial translators, with superior throughput

    Micro Neural-Controller for Optical Character Recognition

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    This paper presents a Micro-Neural Controller (MNC) for Optical Character Recognition (OCR). The controller consists of both a multilayered feedforward Artificial Neural Network (ANN) and a von Neumann-type microcontroller. The ANN is supervised and trained using back-propagation. The role of the ANN is to perform character recognition while the microcontroller coordinates the data transfer between the network and the user. The results show that the network recognizes the patterns effectively and the microcontroller is able to execute a demonstration program
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