Implementación de la carta balance para el mejoramiento de la producción en la construcción de una vivienda en Chepén

Esta investigación se titula: Implementación de la carta balance para el mejoramiento de la producción en la construcción de una vivienda en Chepén, en el cual aplicamos la herramienta Carta Balance de la filosofía Lean Construction donde primero se identifica los factores para el análisis como las partidas involucradas en el proyecto y las actividades que engloban estas partida durante la investigación, luego se realiza una revisión holística de las acciones tomadas en cada elemento y luego se clasifica cada acción como Trabajo Productivo (TP), Trabajo Contributorio (TC) o Trabajo no Contributorio (TNC). Una vez identificados estos factores, usaré mi herramienta de recolección de datos para los diferentes tipos de trabajo (TP, TC y TNC) que realiza cada trabajador en las cuadrillas participantes. Esta recopilación de datos se llevará a cabo dentro de una hora, una vez que se complete la recolección de datos de campo, categorizaré y listaré las actividades en una hoja de cálculo de Microsoft Excel para preparar cuadros donde etiquetaré cada tipo de trabajo por porcentaje y gráficos. Estos cuadros serán de forma circular para facilitar la lectura de los resultados y también se realizará la interpretación de los resultados del trabajo no contributorio para minimizar este déficit. Luego desarrollaré métodos mejorados para aumentar la productividad para posteriormente luego identificar y reducir las actividades que no crean valor tanto en el trabajo contributorio como en el no contributorio. Después de aplicar las propuestas de mejora, tomare las medidas nuevamente, repitiendo el mismo proceso a intervalos de una hora para comparar los resultados.This investigation is entitled: Implementation of the charter Balance sheet for the improvement of production in the construction of a house in Chepén , in which we apply the Charter Balance tool of the Lean Construction philosophy where it is first identified the factors for the analysis such as the items involved in the project and the activities that these items include during the investigation, then a holistic review of the actions taken in each element is carried out and then each action is classified as Productive Work (TP), Work Contributory (TC) or Non-contributory Work (TNC). Once these factors are identified, I will use my data collection tool for the different types of work (TP, TC, and TNC) performed by each worker in the participating crews. This data collection will take place within an hour, once the field data collection is complete I will categorize and list the activities in a Microsoft Excel spreadsheet to prepare charts where I will label each type of work by percentage and graphics. These tables will be circular to facilitate the reading of the results and the interpretation of the results of the non-contributory work will also be carried out to minimize this deficit. I will then develop improved methods to increase productivity and then identify and reduce non-value activities in both contributory and non contributory work. After applying the improvement proposals, I will take the measurements again, repeating the same process at hourly intervals to compare the results.Tesi

Fuzzy motion adaptive algorithm and its hardware implementation for video de-interlacing

Interlacing techniques were introduced in the early analog TV transmission systems as an efficient mechanism capable of halving the video bandwidth. Currently, interlacing is also used by some modern digital TV transmission systems, however, there is a problem at the receiver side since the majority of modern display devices require a progressive scanning. De-interlacing algorithms convert an interlaced video signal into a progressive one by performing interpolation. To achieve good de-interlacing results, dynamical and local image features should be considered. The gradual adaptation of the de-interlacing technique as a function of the level of motion detected in each pixel is a powerful method that can be carried out by means of fuzzy inference. The starting point of our study is an algorithm that uses a fuzzy inference system to evaluate motion locally (FMA algorithm). Our approach is based on convolution techniques to process a fuzzy rulebase for motion-adaptive de-interlacing. Different strategies based on bi-dimensional convolution techniques are proposed. In particular, the algorithm called 'single convolution algorithm' introduces significant advantages: a more accurate measurement of the level of motion using a matrix of weights, and a unique fuzzification process after the global estimation, which reduces the computational cost. Different architectures for the hardware implementation of this algorithm are described in VHDL language. The physical realization is carried out on a RC100 Celoxica FPGA development board. © 2010 Elsevier B.V.Comunidad Europea FP7-INFSO-ICT-248858Gobierno de España TIN2005-08943-C02-01 y TEC2008-04920Junta de Andalucía P08-TIC-0367

Edge-adaptive spatial video de-interlacing algorithms based on fuzzy logic

Since the human visual system is especially sensitive to image edges, edge-dependent spatial interpolators have been proposed in literature as a means of successfully restoring edges while avoiding the staircase effect of linear spatial algorithms. This paper addresses the application of video de-interlacing, which constitutes an indispensable stage in video format conversion. Classic edge-adaptive de-interlacing algorithms introduce annoying artifacts when the edge directions are evaluated incorrectly. This paper presents two ways of exploiting fuzzy reasoning to reinforce edges without an excessive increase in computational complexity. The performance of the proposed algorithms is analyzed by de-interlacing a wide set of test sequences. The study compares the two proposals both with each other and with other edge-adaptive de-interlacing methods reported in the recent literatur

Algoritmo adaptativo con el grado de movimiento para el desentrelazado de vídeo

En esta comunicación se presenta un algoritmo adaptativo con el movimiento para el desentrelazado de vídeo. Se basa en un sistema de inferencia difuso, que realiza una interpolación entre dos técnicas lineales en función del grado de movimiento. Se ha realizado un estudio de diferentes sistemas difusos con distinto número de funciones de pertenencia, analizándose el grado de complejidad de los mismos frente a su eficacia desentrelazando varias secuencias de vídeo.Ministerio de Educación y Ciencia TEC2005-04359/MICJunta de Andalucía TIC2006-63

Fuzzy motion adaptive algorithm for video de-interlacing

A motion adaptive algorithm for video de-interlacing is presented in this paper. It is based on a fuzzy inference system, which performs an interpolation between two linear techniques as a function of the motion level. Fuzzy systems with different number of ¿if-then¿ rules have been analyzed and compared in terms of complexity as well as efficiency in de-interlacing benchmark video sequences.Ministerio de Educación y Ciencia TEC2005-04359/MICJunta de Andalucía TIC2006-63

Active reflectors: possible solutions based on reflectarrays and Fresnel reflectors

An overview about some of the recent Spanish developments on active reflectors is presented. In the first part, a novel beamsteering active reflectarray is deeply studied. It is based on implementing in each elementary radiator an IQ modulator structure, in which amplitude and phase control of the scattered field is achieved. Finally, a special effort is made in offering solutions to overcome the active antenna integration problems. In the second part, the active concept is firstly extended to Fresnel reflectors. Thanks to the development of a proper simulator, this special structure can be easily analysed. This simulator allows the study of performance of this kind of reflectors and, applying evolutionary algorithms, to find optimal configurations of reflector in accordance with the given specifications for the conformal radiation pattern

Ejercitador didáctico informático de los contenidos teóricos relacionados con la Estadística Descriptiva

The pedagogical practice has evidenced defficiencies in the statistical process of the medical data related to medical students. This allowed the performance of the present research with the objective to elaborate a didactic means for the teaching of Descriptive Statistics.  The language program applied was the Hot Potatoes and there were performed presentation screens  with patterns that allow us to approach the exposed content.  The software is nothing more than a system of interaction exercises for the students self evaluation of the acquired knowledge. With  this application it was confirmed the development of skills in the statistical process because the students felt motivated to learn Descriptive Statistics within the subject Statistics and Methodology of the Investigation, where the experimental group had greater results of promotion than the control group. The level of motivation in the experimental group  was: high  motivated, while  the control group was low motivated. The software obtained an excellent  level of acceptance in the experimental group and regular in the control one.La práctica pedagógica ha evidenciado insuficiencias en el procesamiento estadístico de los datos médicos por parte de los estudiantes de la carrera de Medicina. Esto permitió desarrollar esta investigación con el objetivo de elaborar un medio didáctico para la enseñanza de la Estadística Descriptiva, para la confección del mismo se utilizó como lenguaje de programación el Hot Potatoes, sobre el cual se conformaron pantallas de presentación con botones de hipervínculo que permiten acceder al contenido expuesto. El software no es más que un sistema de ejercicios interactivos para que el estudiante pueda autoevaluarse los conocimientos adquiridos. Se corroboró, con la aplicación del mismo, el desarrollo de habilidades en el procesamiento estadístico ya que los alumnos se sintieron muy motivados por el aprendizaje de la Estadística Descriptiva en la asignatura Estadística y Metodología de la Investigación, donde en el grupo experimental hubo mejores resultados de promoción que en el grupo control, el grado de motivación predominante en el grupo experimental fue muy motivado, mientras que en el de control, poco motivado. Lográndose un nivel de aceptación del software de excelente en el grupo experimental y de regular en el de control

Acceptance of living liver donation among medical students: A multicenter stratified study from Spain

AIM: To analyze the attitude of Spanish medical students toward living liver donation (LLD) and to establish which factors have an influence on this attitude. METHODS: STUDY TYPE: A sociological, interdisciplinary, multicenter and observational study. STUDY POPULATION: Medical students enrolled in Spain (n = 34000) in the university academic year 2010-2011. SAMPLE SIZE: A sample of 9598 students stratified by geographical area and academic year. Instrument used to measure attitude: A validated questionnaire (PCID-DVH RIOS) was self-administered and completed anonymously. Data collection procedure: Randomly selected medical schools. The questionnaire was applied to each academic year at compulsory sessions. STATISTICAL ANALYSIS: Student´s t test, ?(2) test and logistic regression analysis. RESULTS: The completion rate was 95.7% (n = 9275). 89% (n = 8258) were in favor of related LLD, and 32% (n = 2937) supported unrelated LLD. The following variables were associated with having a more favorable attitude: (1) age (P = 0.008); (2) sex (P < 0.001); (3) academic year (P < 0.001); (4) geographical area (P = 0.013); (5) believing in the possibility of needing a transplant oneself in the future (P < 0.001); (6) attitude toward deceased donation (P < 0.001); (7) attitude toward living kidney donation (P < 0.001); (8) acceptance of a donated liver segment from a family member if one were needed (P < 0.001); (9) having discussed the subject with one's family (P < 0.001) and friends (P < 0.001); (10) a partner's opinion about the subject (P < 0.001); (11) carrying out activities of an altruistic nature; and (12) fear of the possible mutilation of the body after donation (P < 0.001). CONCLUSION: Spanish medical students have a favorable attitude toward LLD