Analysis of smart energy systems and high participation of V2G impact for the ecuadorian 100% renewable energy system by 2050

This research presents a 100% renewable energy (RE) scenario by 2050 with a high share of electric vehicles on the grid (V2G) developed in Ecuador with the support of the EnergyPLAN analysis tool. Hour-by-hour data iterations were performed to determine solutions among various features, including energy storage, V2G connections that spanned the distribution system, and long-term evaluation. The high participation in V2G connections keeps the electrical system available; meanwhile, the high proportions of variable renewable energy are the pillar of the joint electrical system. The layout of the sustainable mobility scenario and the high V2G participation maintain the balance of the electrical system during most of the day, simplifying the storage equipment requirements. Consequently, the influence of V2G systems on storage is a significant result that must be considered in the energy transition that Ecuador is developing in the long term. The stored electricity will not only serve as storage for future grid use. Additionally, the V2G batteries serve as a buffer between generation from diversified renewable sources and the end-use stage.Peer ReviewedPostprint (published version

New records of Orchids from Morocco

The exploration of the Rif Valley (Morocco) during 2010 revealed the presence of some new taxa and records from Morocco. The new taxa are: Orchis langei subsp. magrebensis and Ophrys neglecta var. riphaea. Ophrys neglecta var. neglecta and Ophrys numida have been detected for the first time in Morocco

El turbante, antes que la mitra; participación europea en la conquista de Constantinopla

A mediados del siglo XV, en Europa se dieron ciertas condiciones con algunos actores interestatales, que favorecieron la conquista de Constantinopla a manos de los otomanos. En algunos estados del resto de Europa, sus tres estamentos: nobleza, burguesía y clero, encerrados en luchas intestinas, no vieron que el mundo que ellos conocían corría riego de perecer. Otros estados en cambio, privilegiaron sus intereses comerciales, al colectivo subcontinental. Previo a las circunstancias descriptas, el otomán estableció una “cabecera de playa” en la Europa sudoriental, a través de una avanzada religiosa que amalgamó los ánimos en favor del Islam, en comparación con la repelencia de Bizancio respecto del poder Latino. En el presente trabajo monográfico, abordaremos una breve descripción de las características más destacables de la conquista de Constantinopla por los otomanos. Para seguir con una descripción del avance otomano sobre Europa oriental, previo al asalto a la capital bizantina. La avanzada tiene dos perfiles: el que muestra el hard power otomano, en la conquista de los territorios europeos del otrora imperio Bizantino; y el que muestra el soft power otomano, manifestado en la conversión de habitantes al Islam en la zona de influencia Bizantina. A su vez, en forma simultánea al crecimiento del Imperio Otomano, describiremos las relaciones entre los estados europeos propiamente y con el otomán en particular. Lo mismo que las relaciones entre los estados europeos de la jurisdicción papal, con Bizancio. Para dar un marco geográfico de estudio del presente trabajo, podemos decir que describiremos los sucesos ocurridos en el continente europeo al este del Mar Negro. A este subcontinente, lo estudiaremos en tres regiones políticas muy bien diferenciadas: la parte occidental, en la que tuvo jurisdicción la Iglesia romana; la parte oriental, en la que tuvo jurisdicción la Iglesia bizantina; y por último el extremo sudoriental europeo en las proximidades del Bósforo, en la que se asentó el Imperio Otomano. Aunque cuando expongamos una reseña histórica de las relaciones entre Roma y Bizancio, debamos referirnos a siglos anteriores, nos concentraremos fundamentalmente en los siglos XIV y XV. A su vez en la conclusión del presente trabajo, recurriremos al paradigma constructivista, como marco teórico que pueda explicar los acontecimientos descriptos.Instituto de Relaciones Internacionale

Human Activity Recognition without Vision Tracking

This work describes the recognition of human activity based on the interaction between people and objects in domestic settings, specifically in a kitchen. The difference between this and other proposals is that considers a human activity in a process without vision tracking. Videos are a sequence of photographs. Taking this into account, if you analyze an orderly sequence of images it could be based on the objects present in each scene so that you can understand the possible activity performed. However, it is not enough to consider the objects present in the scene; it is necessary to determine if those objects are employed or not by the humans present. If they are used, it is evident that they are necessary to carry out the activity; if they are not used they would only provide noise to the recognized activity. Therefore, it is necessary to generate a conceptualization of objects in the scene with characteristics (definition of an object, motion detector, object recognition, object position, object action) that allows you to recognize them and to determine the degree of use (unchanged, added, removed, moved, and indeterminate) and influence the possible recognized activity

Tumor en hueco poplíteo en 1 niño: diagnóstico diferencial a propósito de 1 caso

Se presenta 1 caso de tumoración en hueco poplíteo en 1 paciente de 15 años de edad. En la exploración clínica inicial encontramos una tumoración de consistencia dura sin signos inflamatorios. Los estudios con RNM y gammagrafía ósea nos orientaban hacia una patología benigna. El estudio anatomopatológico realizado tras la exéresis de la tumoración lo caracterizó como zona de necrosis isquémica con calcificación distrófica de la inserción muscular del tendón del músculo semitendinoso.A 15-year-old boy with a poplited tumor in the knee is presented. The initial exploration showed a firm mass without inflammatory signs. RNM and bone scintigraphy disclosed benign pathology. The pathological diagnosis showed a central area of isquemic necrosis, with distrofic calcification of the semitendinous muscle

Structure observer-based controller for delayed systems with two unstable poles and minimum phase zeros

International audienceThis paper analyse the problem of control and stabilization of a particular class of Linear Time Invariant (LTI) systems. The system under consideration has two unstable poles, n real stable poles, m minimum phase zeros plus time delay. An observer based controller with four tunable gains is proposed as control strategy in order to ensure stable behaviour of the closed loop system. Sufficient conditions for the existence of the proposed scheme are shown in terms of the upper limit of time delay size and the poles and zeros position. The controller parameters are tuned using hinfstruct which is a non-smooth H ∞ optimization method. The proposed control strategy it is applied to an unstable linearized model of a continuously stirred tank reactor (CSTR) in order to show the effectiveness of the proposed design scheme. Numerical results are presented

Los tornillos como método suplementario de fijación de las cúpulas acetabulares: Utilidad de la digitalización de imágenes

La fijación suplementaria con tornillos de los componentes acetabulares hemisféricos no cementados es utilizada para proporcionar estabilidad primaria al implante. No obstante su empleo se asocia a un mayor riesgo de lesiones neurovasculares, complicaciones propias de los tornillos e incremento de osteolisis. Se han estudiado retrospectivamente las radiografías de 30 cúpulas cotiloideas no cementadas modelo Bihapro, suplementadas con tornillos, con un seguimiento mínimo de 5 años. Se utilizó, además, un programa de análisis y procesamiento de imágenes por ordenador. No se produjeron lesiones neurovasculares o viscerales, no se apreció ninguna movilización de la cúpula y sólo se observó un caso e osteolisis alrededor de un tornillo en un paciente sometido a cirugía de revisión. La digitalización de imágenes es una técnica que permite entre otras ventajas graduar densidades óseas periprotésicas facilitando un diagnóstico precoz de zonas líticas y microdeslizamientos protésicos, eliminando la subjetividad del observador.The supplementary fixation with screws non-cemented acetabular hemispheric components is used to provide primary stability to the implants. However, their use has been associated to a bigger risk of neurological and vascular damage, characteristic complications of the screws and osteolysis. The X-rays of 30 non-cemented acetabular cups model Bihapro supplemented with screws have been studied retrospectively with a 5 year-old minimum follow-up. It was also used an analysis program and computer store of images. No neurological or vascular damage took place. Any mobilization of the cup was not appreciated and only in one case of an osteolytic area was observed around a screw in a patient who unfderwent revision surgery. The digitalization of images is a technique that allows among other advantages to graduate periprosthetic bone densities facilitating an early diagnose of lytic areas and prosthetic micromovements eliminating the observer's subjectivity

Parallel mesh partitioning based on space filling curves

Larger supercomputers allow the simulation of more complex phenomena with increased accuracy. Eventually this requires finer and thus also larger geometric discretizations. In this context, and extrapolating to the Exascale paradigm, meshing operations such as generation, deformation, adaptation/regeneration or partition/load balance, become a critical issue within the simulation workflow. In this paper we focus on mesh partitioning. In particular, we present a fast and scalable geometric partitioner based on Space Filling Curves (SFC), as an alternative to the standard graph partitioning approach. We have avoided any computing or memory bottleneck in the algorithm, while we have imposed that the solution achieved is independent (discounting rounding off errors) of the number of parallel processes used to compute it. The performance of the SFC-based partitioner presented has been demonstrated using up to 4096 CPU-cores in the Blue Waters supercomputer.The research leading to these results has received funding from the European Union Horizon 2020 Programme (2014-2020) and the Brazilian Ministry of Science, Technology and Innovation through Rede Nacional de Pesquisa (RNP) under the HPC4E Project (grant agreement No. 689772). This work is also part of the PRAC "Simulations of Aircraft Engines" supported by the National Science Foundation. It has also been financially supported by the PRACE preparatory access projects funded in part by the EU Horizon 2020 research and innovation programme (2014-2020) under grant agreement 653838. J.C. Cajas acknowledges the nancial sup- port of the `Consejo Nacional de Ciencia y Tecnolog a (CONACyT, M exico)' grant number 231588 290790. Ricard Borrell and Daniel Mira acknowledge the Juan de la Cierva postdoctoral grants with codes IJCI-2014-21034 and IJCI-2015-26686, respectively.Postprint (author's final draft