15 research outputs found

    Simulation and modelling of microclimate in a building with high thermal mass during the winter season

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    This paper presents the simulation method for evaluating the heating system from a church. The inside climate has been evaluated by measures of temperature and humidity taken in the winter season. The aim of the paper is to model and validate the indoor climate measures thought numerical analysis and to evaluate the heating system performance. The paper include a case study over and representative category of buildings, used as worship place that can contain heritage values. Nowadays, to conserve the historical heritage is a fact studied in many countries of Europe

    Oscillatory Cortical Activity in an Animal Model of Dystonia Caused by Cerebellar Dysfunction

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    The synchronization of neuronal activity in the sensorimotor cortices is crucial for motor control and learning. This synchrony can be modulated by upstream activity in the cerebello-cortical network. However, many questions remain over the details of how the cerebral cortex and the cerebellum communicate. Therefore, our aim is to study the contribution of the cerebellum to oscillatory brain activity, in particular in the case of dystonia, a severely disabling motor disease associated with altered sensorimotor coupling. We used a kainic-induced dystonia model to evaluate cerebral cortical oscillatory activity and connectivity during dystonic episodes. We performed microinjections of low doses of kainic acid into the cerebellar vermis in mice and examined activities in somatosensory, motor and parietal cortices. We showed that repeated applications of kainic acid into the cerebellar vermis, for five consecutive days, generate reproducible dystonic motor behavior. No epileptiform activity was recorded on electrocorticogram (ECoG) during the dystonic postures or movements. We investigated the ECoG power spectral density and coherence between motor cortex, somatosensory and parietal cortices before and during dystonic attacks. During the baseline condition, we found a phenomenon of permanent adaptation with a change of baseline locomotor activity coupled to an ECoG gamma band increase in all cortices. In addition, after kainate administration, we observed an increase in muscular activity, but less signs of dystonia together with modulations of the ECoG power spectra with an increase in gamma band in motor, parietal and somatosensory cortices. Moreover, we found reduced coherence in all measured frequency bands between the motor cortex and somatosensory or parietal cortices compared to baseline. In conclusion, examination of cortical oscillatory activities in this animal model of chronic dystonia caused by cerebellar dysfunction reveals a disruption in the coordination of neuronal activity across the cortical sensorimotor/parietal network, which may underlie motor skill deficits

    Unikraft:Fast, Specialized Unikernels the Easy Way

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    Unikernels are famous for providing excellent performance in terms of boot times, throughput and memory consumption, to name a few metrics. However, they are infamous for making it hard and extremely time consuming to extract such performance, and for needing significant engineering effort in order to port applications to them. We introduce Unikraft, a novel micro-library OS that (1) fully modularizes OS primitives so that it is easy to customize the unikernel and include only relevant components and (2) exposes a set of composable, performance-oriented APIs in order to make it easy for developers to obtain high performance. Our evaluation using off-the-shelf applications such as nginx, SQLite, and Redis shows that running them on Unikraft results in a 1.7x-2.7x performance improvement compared to Linux guests. In addition, Unikraft images for these apps are around 1MB, require less than 10MB of RAM to run, and boot in around 1ms on top of the VMM time (total boot time 3ms-40ms). Unikraft is a Linux Foundation open source project and can be found at www.unikraft.or

    Research and Science Today Supplement No.1(3)/2012

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    Research and Science Today Journal is a publication founded in 2011 and it is dedicated to the students of all levels (license, master and doctoral) of faculties in the country and abroad. We want to offer the participants the opportunity to present their scientific works in the following areas: Social Sciences, Economic Sciences, Legal Sciences, Humanities, Education Sciences, Engineering, Medicine and Sport. This journal provides students the opportunity to create and / or to improve their abilities to write scientific papers. So each appearance (two appearances per year at which we can add supplements) contains a number of papers written by students, masters and doctoral from the faculties from the country or / and abroad. The journal promotes original studies contributing to the progress of knowledge and it is motivated by the need to address issues of theory and practice in the areas mentioned above. The Journal is a training means of the factors involved in the conceptualization, development, implementation and evaluation , aiming the formation of creative personalities who could be able to adapt through the changing conditions of life. Journal wants to be a forum for debates disciplinaries and interdisciplinaries theoretical topics, to become a research support, to leverage this work at regional, national and international levels. We believe that this gathering will enjoy the support from both parts of the researchers and of the practitioners, and will provide appropriate training sources held professional through the current problems

    Research and Science Today Supplement No.1(3)/2012

    Get PDF
    Research and Science Today Journal is a publication founded in 2011 and it is dedicated to the students of all levels (license, master and doctoral) of faculties in the country and abroad. We want to offer the participants the opportunity to present their scientific works in the following areas: Social Sciences, Economic Sciences, Legal Sciences, Humanities, Education Sciences, Engineering, Medicine and Sport. This journal provides students the opportunity to create and / or to improve their abilities to write scientific papers. So each appearance (two appearances per year at which we can add supplements) contains a number of papers written by students, masters and doctoral from the faculties from the country or / and abroad. The journal promotes original studies contributing to the progress of knowledge and it is motivated by the need to address issues of theory and practice in the areas mentioned above. The Journal is a training means of the factors involved in the conceptualization, development, implementation and evaluation , aiming the formation of creative personalities who could be able to adapt through the changing conditions of life. Journal wants to be a forum for debates disciplinaries and interdisciplinaries theoretical topics, to become a research support, to leverage this work at regional, national and international levels. We believe that this gathering will enjoy the support from both parts of the researchers and of the practitioners, and will provide appropriate training sources held professional through the current problems

    Using SOA and WEB Services for an Electricity Distribution Enterprise

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    A viable enterprise today must adapt continously to the requirements of the market. The adaptation of a company to the market requirements means also changes of business processes within IT systems. In any enterprise there is a strong link between business processes and IT applications IT and a business process modification will determine a modification in the IT applications. In order to increase the alignment between business and IT and achieve business agility – the ability to respond to changes quickly and efficiency – we have to create a flexible mechanism between IT applications and business processes which will make that the adaptation to the market changes will be made quickly and with low consumption of either human or material resources. Therefore, enterprises need agility to maintain strategic advantages in operating businesses. Service Oriented Architecture (SOA) represents an architectural design which provide agility and satisfies the business processes in order to achieve business agility. In the IT area, SOA promises to reduce application development and maintenance costs through service reuse. A service may be considered as a set of components and software operations which are built in a way that permit them to be flexibly and dynamically integrated to cover both IT and business needs. SOA offers capabilities for the services to be combined together, to support and create a flexible and agile enterprise

    The polished stone industry from Șoimuş – La Avicola (Ferma 2), Hunedoara County

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    In this contribution the polished stone artefacts from the Neolithic settlement at Şoimuş – La Avicola (Ferma 2), Hunedoara County are analysed. These items belong to Turdaş facies and were discovered during rescue excavations on the A1 Motorway route in 2011. The items are analysed from the point of view of their typology, technology and context, but also their dimensions and the possible sources of raw materials being taken into consideration. A wide range of raw materials for making stone tools at Şoimuş was used, which proves the amazing adaptability of the Turdaş communities to the local environment.În această contribuţie ne propunem să analizăm artefactele din piatră şlefuită din aşezarea neolitică de la Şoimuş – La Avicola (Ferma 2), judeţul Hunedoara. Ele aparţin aspectului cultural Turdaş şi au fost descoperite în timpul săpăturilor arheologice preventive de pe traseul Autostrăzii A1 în anul 2011. Obiectele sunt analizate din punct de vedere al tipologiei, tehnologiei şi contextului lor, a parametrilor dimensionali dar şi a posibilelor puncte din care materia primă necesară producerii lor ar fi fost colectată. Materiile prime utilizate în confecţionarea obiectelor din piatră şlefuită de la Şoimuş sunt foarte diverse, acest lucru dovedind uimitoarea adaptabilitate a comunităţilor turdăşene la mediul înconjurător.Ştefan Cristian-Eduard, Dimache Mădălina, Petcu Răzvan, Palcu Dan. The polished stone industry from Șoimuş – La Avicola (Ferma 2), Hunedoara County. In: Materiale şi cercetãri arheologice (Serie nouã), N°13 2017. pp. 171-189

    Ground-Based Measurements of Cloud Properties at the Bucharest–Măgurele Cloudnet Station: First Results

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    Data collected over a period of 18 months (December 2019–May 2021) at the Bucharest–Măgurele Cloudnet station were analysed for the first time to determine the macrophysical and microphysical cloud properties over this site. A total number of 1,327,680 vertical profiles containing the target classification based on the Cloudnet algorithm were analysed, of which 1,077,858 profiles contained hydrometeors. The highest number of profiles with hydrometeors (>60%) was recorded in December 2020, with hydrometeors being observed mainly below 5 km. Above 5 km, the frequency of occurrence of hydrometeors was less than <20%. Based on the initial Cloudnet target classification, a cloud classification scheme was implemented. Clouds were more frequently observed during winter compared with other seasons (45% of all profiles). Ice clouds were the most frequent type of cloud (468,463 profiles) during the study period, followed by mixed phases (220,280 profiles) and mixed phased precipitable clouds (164,868 profiles). The geometrical thickness varied from a median value of 244 m for liquid clouds during summer to 3362 m for mix phased precipitable clouds during spring
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