Desarrollo de sistema SCADA y de comunicación inalámbrica aplicable a prototipo de limpieza de paneles fotovoltaicos “Clean Optimizer”

108 p.El siguiente proyecto se realizó dentro del marco del proyecto Clean Optimizer y la facultad de ingeniería de la Universidad de Talca. El proyecto se realizó debido a la necesidad de responder de manera óptima ante los problemas y desventajas de algunas alternativas chilenas utilizadas en limpieza de paneles fotovoltaicos. Especialmente en el prototipo Clean Optimizer que quiere convertirse en una alternativa para poder suplir problemas asociados a la limpieza de paneles fotovoltaicos cómo escases del recurso hídrico, poco resguardo de los paneles fotovoltaicos y personal a cargo. Elevados costos asociados a cableado para cubrir largas distancias y detención de la producción para generar limpiezas, entre otros. El desarrollo de esta memoria de título muestra cómo se investigó, diseñó e implemento un sistema de comunicación de tipo inalámbrica y además un sistema SCADA para monitorear la aplicación de un prototipo limpiador de paneles fotovoltaico que lleva cómo nombre Clean Optimizer. En esta memoria de título se emularon elementos cómo sensores y actuadores utilizados por Clean Optimizer para acceder a información y manipulación de parámetros que inciden en el desempeño del prototipo. Todo esto con el objetivo de poder manipular elementos cómo el motor, bomba de agua y sensores de nivel desde un sistema en el cual un operador pueda monitorear a cierta dicho proceso, dando un sello de posibles mantenimientos a futuro para generar una ventaja competitiva La primera parte consta de la implementación de comunicación inalámbrica, basada en una topología de red punto a punto, la cual se basa en comunicación de largo alcance basada en tecnología ZigBee regulada por el estándar IEEE 802.15.4 y parte de comunicación basada en nivel de capa física del Modelo OSI. La segunda parte consta de desarrollo de un sistema SCADA, el cual fue diseñado, programado y probado bajo el software Visual Studio. Finalmente, la última parte consta de interconectar distintas tecnologías, logrando comunicación entre ellas, la cual se basó sobre la arquitectura maestro/esclavo mediante el protocolo Modbus/RTU

Propuesta de diseño organizacional para el Hotel Doña Lila.

Presenta una propuesta de diseño organizacional para el Hotel Doña Lila, permitirá solidificar las bases para que la empresa se fortalezca y perdure en el tiempo, el giro del negocio es brindar el servicio de hospedaje a turistas nacionales y extranjeros

An iterative multimodal framework for the transcription of handwritten historical documents

[EN] The transcription of historical documents is one of the most interesting tasks in which Handwritten Text Recognition can be applied, due to its interest in humanities research. One alternative for transcribing the ancient manuscripts is the use of speech dictation by using Automatic Speech Recognition techniques. In the two alternatives similar models (Hidden Markov Models and n-grams) and decoding processes (Viterbi decoding) are employed, which allows a possible combination of the two modalities with little diffi- culties. In this work, we explore the possibility of using recognition results of one modality to restrict the decoding process of the other modality, and apply this process iteratively. Results of these multimodal iterative alternatives are significantly better than the baseline uni-modal systems and better than the non-iterative alternatives. 2012 Elsevier B.V. All rights reserved.Work supported by the EC (FEDER/FSE) and the Spanish MEC/MICINN under the MIPRCV ’’Consolider Ingenio 2010’’ program (CSD2007-00018), iTrans2 (TIN2009–14511) and MITTRAL (TIN2009-14633-C03–01) projects. Also supported by the Spanish MITyC under the erudito.com (TSI-020110-2009-439) project and by the Generalitat Valenciana under grant GV/2010/067, and by the UPV under project PAID-05-11-2779 and grant UPV/2009/2851.Alabau, V.; Martínez Hinarejos, CD.; Romero Gómez, V.; Lagarda Arroyo, AL. (2014). An iterative multimodal framework for the transcription of handwritten historical documents. Pattern Recognition Letters. 35:195-203. https://doi.org/10.1016/j.patrec.2012.11.007S1952033

El encuentro universidad-escuela a partir de una experiencia innovadora en la formación de estudiantes de magisterio

La Ciudad del Arco Iris es un proyecto de innovación educativa que se lleva a cabo desde hace tres años en la Universidad de Huelva. En el antiguo gimnasio de la facultad se han reproducido los diferentes espacios característicos de una ciudad, cada uno de ellos atendidos por un grupo de alumnos de Magisterio, bajo la supervisión de sus profesores y responsables del proyecto. Un día a la semana es visitada por diferentes centros infantiles. Los niños descubren un lugar hecho especialmente para ellos donde pueden jugar, aprender y divertirse; los futuros maestros relacionan teoría y práctica, propiciándose su formación activa y la reflexión individual y grupal; los maestros en ejercicio comparten su experiencia y aprenden de los más jóvenes; y la Universidad en su conjunto se enriquece con la posibilidad de aunar a todos ellos en un solo espacio y bajo un mismo proyecto.Eje: Educación universitaria: Experiencias educativasRed de Universidades con Carreras en Informática (RedUNCI

El encuentro universidad-escuela a partir de una experiencia innovadora en la formación de estudiantes de magisterio

La Ciudad del Arco Iris es un proyecto de innovación educativa que se lleva a cabo desde hace tres años en la Universidad de Huelva. En el antiguo gimnasio de la facultad se han reproducido los diferentes espacios característicos de una ciudad, cada uno de ellos atendidos por un grupo de alumnos de Magisterio, bajo la supervisión de sus profesores y responsables del proyecto. Un día a la semana es visitada por diferentes centros infantiles. Los niños descubren un lugar hecho especialmente para ellos donde pueden jugar, aprender y divertirse; los futuros maestros relacionan teoría y práctica, propiciándose su formación activa y la reflexión individual y grupal; los maestros en ejercicio comparten su experiencia y aprenden de los más jóvenes; y la Universidad en su conjunto se enriquece con la posibilidad de aunar a todos ellos en un solo espacio y bajo un mismo proyecto.Eje: Educación universitaria: Experiencias educativasRed de Universidades con Carreras en Informática (RedUNCI

Drivers of the Ectoparasite Community and Co-Infection Patterns in Rural and Urban Burrowing Owls

We analyzed the ectoparasite community of a monomorphic and non-social bird, the burrowing owl, Athene cunicularia, breeding in rural and urban habitats. Such community was composed by two lice, one mite and one flea species. Rural individuals had more fleas and less mites than urban ones. Adult birds harbored less ectoparasites than young ones and females harbored more lice than males. The presence of lice was positively related to the presence of fleas. On the contrary, the presence of mites was negatively related to the presence of fleas and lice. The study of parasite communities in urban and rural populations of the same species can shed light on how urban stressor factors impact the physiology of wildlife inhabiting cities and, therefore, the host-parasite relationships. Urbanization creates new ecological conditions that can affect biodiversity at all levels, including the diversity and prevalence of parasites of species that may occupy these environments. However, few studies have compared bird-ectoparasite interactions between urban and rural individuals. Here, we analyze the ectoparasite community and co-infection patterns of urban and rural burrowing owls, Athene cunicularia, to assess the influence of host traits (i.e., sex, age, and weight), and environmental factors (i.e., number of conspecifics per nest, habitat type and aridity) on its composition. Ectoparasites of burrowing owls included two lice, one flea, and one mite. The overall prevalence for mites, lice and fleas was 1.75%, 8.76% and 3.50%, respectively. A clear pattern of co-infection was detected between mites and fleas and, to less extent, between mites and lice. Adult owls harbored fewer ectoparasites than nestlings, and adult females harbored more lice than males. Our results also show that mite and flea numbers were higher when more conspecifics cohabited the same burrow, while lice showed the opposite pattern. Rural individuals showed higher flea parasitism and lower mite parasitism than urban birds. Moreover, mite numbers were negatively correlated with aridity and host weight. Although the ectoparasitic load of burrowing owls appears to be influenced by individual age, sex, number of conspecifics per nest, and habitat characteristics, the pattern of co-infection found among ectoparasites could also be mediated by unexplored factors such as host immune response, which deserves further research

Searches for 25 rare and forbidden decays of D+ and D+s mesons

A search is performed for rare and forbidden charm decays of the form D+(s)→h±ℓ+ℓ(′)∓, where h± is a pion or kaon and ℓ(′)± is an electron or muon. The measurements are performed using proton-proton collision data, corresponding to an integrated luminosity of 1.6 fb−1, collected by the LHCb experiment in 2016. No evidence is observed for the 25 decay modes that are investigated and 90 % confidence level limits on the branching fractions are set between 1.4 × 10−8 and 6.4 × 10−6. In most cases, these results represent an improvement on existing limits by one to two orders of magnitudeWe acknowledge support from CERN and from the national agencies: CAPES, CNPq, FAPERJ and FINEP (Brazil); MOST and NSFC (China); CNRS/IN2P3 (France); BMBF, DFG and MPG (Germany); INFN (Italy); NWO (Netherlands); MNiSW and NCN (Poland); MEN/IFA (Romania); MSHE (Russia); MICINN (Spain); SNSF and SER (Switzerland); NASU (Ukraine); STFC (United Kingdom); DOE NP and NSF (U.S.A.). We acknowledge the computing resources that are provided by CERN, IN2P3 (France), KIT and DESY (Germany), INFN (Italy), SURF (Netherlands), PIC (Spain), GridPP (United Kingdom), RRCKI and Yandex LLC (Russia), CSCS (Switzerland), IFINHH (Romania), CBPF (Brazil), PL-GRID (Poland) and OSC (U.S.A.). Individual groups or members have received support from AvH Foundation (Germany); EPLANET, Marie Skłodowska-Curie Actions and ERC (European Union); A*MIDEX, ANR, Labex P2IO and OCEVU, and Région Auvergne-Rhône-Alpes (France); Key Research Program of Frontier Sciences of CAS, CAS PIFI, Thousand Talents Program, and Sci. & Tech. Program of Guangzhou (China); RFBR, RSF and Yandex LLC (Russia); GVA, XuntaGal and GENCAT (Spain); the Royal Society and the Leverhulme Trust (United Kingdom)S

Performances of an Active Target GEM-Based TPC for the AMADEUS Experiment

In this paper, we present the R & D activity on a new GEM-based Time Projection Chamber (GEM-TPC) detector for the inner region of the AMADEUS experiment, which is aiming to perform measurements of low-energy negative kaon interactions in nuclei at the DAΦNE e+ e- collider at LNF-INFN. A novel idea of using a GEM-TPC as a low mass target and detector at the same time comes motivated by the need of studying the low energy interactions of K- with nuclei in a complete way, tracking and identifying all of the produced particles. Even more, what makes the experimental proposal revolutionary is the possibility of using different gaseous targets without any other substantial intervention on the experimental setup, making it a flexible multipurpose device. This new detection technique applied to the nuclear physics requires the use of low-radiation length materials and very pure light gases such as Hydrogen, Deuterium, Helium-3, Helium-4, etc. In order to evaluate the GEM-TPC performances, a 10 × 10 cm2 prototype with a drift gap of 15 cm has been realized. The detector was tested at the πM1 beam facility of the Paul Scherrer Institut (PSI) with low momentum pions and protons. Detection efficiency and spatial resolution, as a function of gas mixture, gas gain and ionazing particle, are reported and discussed

Angular analysis of B0→D∗−D∗+s with D∗+s→D+sγ decays

The first full angular analysis of the B0→D∗−D∗+s decay is performed using 6 fb−1 of pp collision data collected with the LHCb experiment at a centre-of-mass energy of 13 TeV. The D∗+s→D+sγ and D*− → D¯¯¯¯0π− vector meson decays are used with the subsequent D+s → K+K−π+ and D¯¯¯¯0 → K+π− decays. All helicity amplitudes and phases are measured, and the longitudinal polarisation fraction is determined to be fL = 0.578 ± 0.010 ± 0.011 with world-best precision, where the first uncertainty is statistical and the second is systematic. The pattern of helicity amplitude magnitudes is found to align with expectations from quark-helicity conservation in B decays. The ratio of branching fractions [ℬ(B0→D∗−D∗+s) × ℬ(D∗+s→D+sγ)]/ℬ(B0 → D*−D+s) is measured to be 2.045 ± 0.022 ± 0.071 with world-best precision. In addition, the first observation of the Cabibbo-suppressed Bs → D*−D+s decay is made with a significance of seven standard deviations. The branching fraction ratio ℬ(Bs → D*−D+s)/ℬ(B0 → D*−D+s) is measured to be 0.049 ± 0.006 ± 0.003 ± 0.002, where the third uncertainty is due to limited knowledge of the ratio of fragmentation fractionsS

Autophagy-mediated NCOR1 degradation is required for brown fat maturation and thermogenesis

Brown adipose tissue (BAT) thermogenesis affects energy balance, and thereby it has the potential to induce weight loss and to prevent obesity. Here, we document a macroautophagic/autophagic-dependent mechanism of peroxisome proliferator-activated receptor gamma (PPARG) activity regulation that induces brown adipose differentiation and thermogenesis and that is mediated by TP53INP2. Disruption of TP53INP2-dependent autophagy reduced brown adipogenesis in cultured cells. In vivo specific-tp53inp2 ablation in brown precursor cells or in adult mice decreased the expression of thermogenic and mature adipocyte genes in BAT. As a result, TP53INP2-deficient mice had reduced UCP1 content in BAT and impaired maximal thermogenic capacity, leading to lipid accumulation and to positive energy balance. Mechanistically, TP53INP2 stimulates PPARG activity and adipogenesis in brown adipose cells by promoting the autophagic degradation of NCOR1, a PPARG co-repressor. Moreover, the modulation of TP53INP2 expression in BAT and in human brown adipocytes suggests that this protein increases PPARG activity during metabolic activation of brown fat. In all, we have identified a novel molecular explanation for the contribution of autophagy to BAT energy metabolism that could facilitate the design of therapeutic strategies against obesity and its metabolic complications