Optimizing Fast Fourier Transform (FFT) Image Compression using Intelligent Water Drop (IWD) Algorithm

Digital image compression is the technique in digital image processing where special attention is provided in decreasing the number of bits required to represent a digital image. A wide range of techniques have been developed over the years, and novel approaches continue to emerge. This paper proposes a new technique for optimizing image compression using Fast Fourier Transform (FFT) and Intelligent Water Drop (IWD) algorithm. IWD-based FFT Compression is a emerging ethodology, and we expect compression findings to be much better than the methods currently being applied in the domain. This work aims to enhance the degree of compression of the image while maintaining the features that contribute most. It optimizes the FFT threshold values using swarm-based optimization technique (IWD) and compares the results in terms of Structural Similarity Index Measure (SSIM). The criterion of structural similarity of image quality is based on the premise that the human visual system is highly adapted to obtain structural information from the scene, so a measure of structural similarity provides a reasonable estimate of the perceived image quality

Stele of Alionus. Unpublished inscription from Rabanales de Aliste (Zamora)

El municipio de Rabanales de Aliste, localizado al noroeste de la provincia de Zamora, acoge un buen número de inscripciones, principalmente estelas funerarias, que han sido objeto de estudio desde comienzos del siglo XX por diferentes investigadores. Aunque muchas de ellas han sido reutilizadas con posterioridad en paredes de casas o en la iglesia del municipio, las recientes excavaciones arqueológicas apuntan a su posible vinculación con el yacimiento de El Castrico, ocupado durante la segunda mitad del siglo I d. C. y la primera del II d. C. En este trabajo se analiza una estela funeraria inédita descubierta en 2021 empotrada en el interior de la iglesia de El Salvador, concretamente en el acceso a la base del campanario desde la nave central, que servía como sillar del dintel del vano de la puerta. Gracias al uso de técnicas novedosas como la fotogrametría digital y aplicación de análisis con SIG se ha podido leer correctamente la inscripción y descartar de la lectura algunas marcas, provocadas por las sucesivas alteraciones del bloque tras su reutilización. De esta manera, podemos minimizar el riesgo de interpretar erróneamente caracteres inexistentes en la pieza. A pesar de tratarse de una inscripción sencilla de tipo funerario, su análisis ha permitido dar a conocer la primera atestiguación del antropónimo Caraucus en el Imperio, de clara tradición celta, así como una posible relación de parentesco del tipo abuelo-padre-hijo, pudiendo completar la ascendencia familiar de otro personaje mencionado en el corpus epigráfico de Rabanales: Potitus, hijo de Alionus y nieto de Caraucus.The municipality of Rabanales de Aliste, located in the northwest of the province of Zamora, is home to a large number of inscriptions, mainly funerary stelae, which have been the focus of study since the beginning of the 20th century by various researchers. Although all of them have subsequently been reused in the wall structures of houses or in the local church, recent archaeological excavations point to their possible link with the site of El Castrico, occupied during the second half of the 1st century AD and the first half of the 2nd century AD. This paper analyses an unpublished funerary stele discovered in 2021 embedded in the interior of the church of El Salvador, specifically in the access to the base of the bell tower from the central nave, which served as an ashlar for the lintel of the doorway. Thanks to the use of innovative techniques such as digital photogrammetry and the application of GIS analysis, it has been possible to read the inscription correctly and to discard some marks caused by successive alterations to the block after its reuse. In this way, we can minimise the risk of misinterpreting non-existent characters on the part. Despite being a simple funerary inscription, its analysis has revealed the first evidence of the anthroponym Caraucus in the Roman Empire, of clear Celtic tradition, as well as a possible grandfather-father-son relationship, thus completing the family ancestry of another character mentioned in the epigraphic corpus of Rabanales: Potitus, son of Alionus and grandson of Caraucus.El presente trabajo se ha realizado en el marco del proyecto Tituli Zoelarum, galardonado por la International Digital Epigraphy Association (IDEA) en la convocatoria Small Grants 2023

A Prospective Study of Cranial Deformity and Delayed Development in Children

Plagiocephaly, the most common form of cranial deformity, has become more prevalent in recent years. Many authors have described a number of sequelae of poorly defined etiologies, although several gaps exist in their real scope. This study aimed to analyze the effects of physiotherapy treatments and cranial orthoses on the psychomotor development of infants with cranial deformities, complemented by protocolized postural exercises applied by the family. This prospective study on different developmental areas included a sample of 48 breastfeeding infants aged 6 to 18 months who presented with plagiocephaly (flat head syndrome). The Brunet–Lézine scale was used to perform three tests for assessing the psychomotor development of infants, thus offering a measure for global development. The results suggest that plagiocephaly is a marker for the risk of delayed development, particularly in motor and language areas. This delayed development could be improved with physiotherapy and orthopedic treatment, complemented by interventions by the infants´ relatives

La cátedra Diseño Industrial 2 B trabajó sobre dispositivos domésticos para desinfección en contexto de la pandemia del COVID-19

TRABAJOS: PROYECTO: Pul.sa / AUTORES: Pilar Peralta y Bautista Mugnaini PROYECTO: Numo / AUTORES: Tamara Toledo y Ramiro Ríos PROYECTO: Zenely / AUTORES: Sergio Olmedo y Manuel Reartes PROYECTO: Torretas de Ozono / AUTORES: Pedro Juan Delgado Bratti y Daniel Shen PROYECTO: ANCO / AUTORES: Belén Sol Quinteros y Bruno Mediavilla PROYECTO: Fructífero / AUTORES: Romina Escudero y Santiago Bognano PROYECTO: Acom / AUTORES: Ariadna Cevasco y M. Laura Gonzalez PROYECTO: NOZ / AUTORES: Camila Rapaline & Tomás Rodriguez BravoLa cátedra Diseño Industrial 2 B trabajó sobre dispositivos domésticos para desinfección en contexto de la pandemia del COVID-19 Compartimos los proyectos realizados por estudiantes de la cátedra Diseño Industrial 2B, que durante la primera parte del año, trabajaron sobre dispositivos domésticos para desinfección en contexto de la pandemia del COVID-19. Desde la Facultad de Arquitectura, Urbanismo y Diseño (Universidad Nacional de Córdoba) se iniciaron diferentes acciones para adaptar los contenidos de las carreras y atender a las diferentes necesidades sociales en el contexto de emergencia sanitaria. En ese sentido, la cátedra Diseño Industrial 2B se propuso situar la problemática de trabajo en las condiciones generadas por la pandemia del COVID-19, a partir de las cuales se generan cambios en la vida cotidiana, que afectan las actividades y llevan a incorporar nuevos hábitos y formas de relacionarse. La cátedra propuso a sus estudiantes pensar sistemas portátiles para el ámbito doméstico que permitieran la desinfección de elementos y pertenencias en el ingreso al domicilio. El trabajo práctico propuesto, abordó la complejidad de un producto-máquina desde su comprensión como sistema, con piezas intercambiables y/o combinables que posibilitan diferentes instancias de funcionamiento, abarcando la variablidad de escalas, tanto de relación manual como corporal, en cuanto a la observación de actividades, posturas y situaciones de uso.Fil: Oliva, Silvia. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño. Cátedra Diseño Industrial; Argentina.Fil: de la Fuente, Federico. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño. Cátedra Diseño Industrial; Argentina.Fil: Speroni, Diego. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño. Cátedra Diseño Industrial; Argentina.Fil: Franco, Belén. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño. Cátedra Diseño Industrial; Argentina.Fil: Cagliero, Leonardo. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño. Cátedra Diseño Industrial; Argentina.Fil: Parra, Javier. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño. Cátedra Diseño Industrial; Argentina.Fil: Talmon, Gaspar. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño. Cátedra Diseño Industrial; Argentina.Fil: Gili, Agustina. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño. Cátedra Diseño Industrial; Argentina.Fil: Costamagna, Camila. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño. Cátedra Diseño Industrial; Argentina.Fil: Vélez, Simón. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño. Cátedra Diseño Industrial; Argentina.Fil: Giménez, Lucas. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño. Cátedra Diseño Industrial; Argentina

Bovine Tuberculosis in Doñana Biosphere Reserve: The Role of Wild Ungulates as Disease Reservoirs in the Last Iberian Lynx Strongholds

Doñana National Park (DNP) in southern Spain is a UNESCO Biosphere Reserve where commercial hunting and wildlife artificial feeding do not take place and traditional cattle husbandry still exists. Herein, we hypothesized that Mycobacterium bovis infection prevalence in wild ungulates will depend on host ecology and that variation in prevalence will reflect variation in the interaction between hosts and environmental risk factors. Cattle bTB reactor rates increased in DNP despite compulsory testing and culling of infected animals. In this study, 124 European wild boar, 95 red deer, and 97 fallow deer were sampled from April 2006 to April 2007 and analyzed for M. bovis infection. Modelling and GIS were used to identify risk factors and intra and inter-species relationships. Infection with M. bovis was confirmed in 65 (52.4%) wild boar, 26 (27.4%) red deer and 18 (18.5%) fallow deer. In the absence of cattle, wild boar M. bovis prevalence reached 92.3% in the northern third of DNP. Wild boar showed more than twice prevalence than that in deer (p<0.001). Modelling revealed that M. bovis prevalence decreased from North to South in wild boar (p<0.001) and red deer (p<0.01), whereas no spatial pattern was evidenced for fallow deer. Infection risk in wild boar was dependent on wild boar M. bovis prevalence in the buffer area containing interacting individuals (p<0.01). The prevalence recorded in this study is among the highest reported in wildlife. Remarkably, this high prevalence occurs in the absence of wildlife artificial feeding, suggesting that a feeding ban alone would have a limited effect on wildlife M. bovis prevalence. In DNP, M. bovis transmission may occur predominantly at the intra-species level due to ecological, behavioural and epidemiological factors. The results of this study allow inferring conclusions on epidemiological bTB risk factors in Mediterranean habitats that are not managed for hunting purposes. Our results support the need to consider wildlife species for the control of bTB in cattle and strongly suggest that bTB may affect animal welfare and conservation

Geodivulgar: Geología y Sociedad 2018

Depto. de Geodinámica, Estratigrafía y PaleontologíaFac. de Ciencias GeológicasFALSEsubmitte

RAWS Architecture: Reflective and Adaptable Web Service Model

Web services are static components, which implies that before a change in their structure or behavior can be made, the source code — or a decoder of compiled code — is needed. The full process consists of three steps: editing and modifying the source code, compiling it again, and redeploying it in the server. Reflection, a powerful tool for the adaptation of applications at runtime, may help in creating more flexible and dynamic Web services. In this paper, we introduce RAWS (Reflective and Adaptable Web Service) Architecture, a Web service design model based on a reflective architecture multilevel. RAWS allows both the dynamic modification of the definition and implementation structure of the Web service, and the dynamic modification of the Web service behavior in order to change the existing code or to add new functionalities. All these dynamic modifications are performed directly on the code during execution, with no need to have the Web service source code. We also introduce an automatic generator of the reflective infrastructure that is needed for the implementation of the RAWS architecture. This infrastructure will make possible that any Web service can automatically behave like a Reflective and Adaptable Web Service

Voltage Regulation using Probabilistic and Fuzzy Controlled Dynamic Voltage Restorer for Oil and Gas Industry

In a power distribution system, faults occurring can cause voltage sag that can affect critical loads connected in the power network which can cause serious effects in the oil and gas industry. The objective of this paper is to design and implement an efficient and economical dynamic voltage restorer (DVR) to compensate for voltage sag conditions in the oil and gas industry. Due to the complexity and sensitivity of loads, a short voltage sag duration can still cause severe power quality problems to the entire system. Dynamic Voltage Restorer (DVR) is a static series compensating type custom power device. The overall efficiency of the DVR largely relies on the effectiveness of the control strategy governing the switching of the inverters. It can be said that the heart of the DVR control strategy is the derivation of reference currents. This paper deals with the extraction of reference current values using a controller based on a combination of probabilistic and fuzzy set theory. The basis of the proposed controller is that Gaussian Mixture Model (GMM) which is a probabilistic approach can be translated to an additive fuzzy interface system i.e. Generalized Fuzzy Model (GFM). The proposed controller (GMM-GFM) initially optimizes the membership functions using GMM and the final output is calculated using GFM in a single iteration i.e. with no recursions. In the control scheme two control loops are used: a feed-forward loop that uses the Proportional and Integral (PI) controller and the feedback loop uses GMM-GFM based controller. The controller is implemented and respective simulations are performed in the MATLAB SIMULINK environment for three-phase, three-wire distribution system with various issues. A comparative analysis is then done amongst all the three controllers which are based on the T-S, ML, and GMM-GFM modes respectively. The simulation results of this comparison rank the DVR with the GMM-GFM controller first, followed by the fuzzy logic Mamdani model and then with the fuzzy logic T-S model. © 2020 World Scientific Publishing Company