8 research outputs found
Sensitivity analysis of the state of the art silicon photovoltaic temperature estimation methods over different time resolution
No full textSborová tvorba Petra Ebena se zaměřením na antické náměty
No full textTitle: CHORAL WORKS PETR EBEN FOCUSED ON ANCIENT THEMES Author: Mgr. Solon Kladas Department: Music Department Supervisor: Prof. PhDr. Stanislav Pecháček, Ph.D. Abstract: In his thesis, the author deals with the life and work of one of the most important contemporary Czech composer Petr Eben. It monitors the whole choral and vocal- instrumental works from the beginning to the last period of his compositional work, it presents the last information about the lately composer's life and focuses on choral works, written on the ancient Greek text. The first chapter offers a brief description of the author's life, essential genealogy, his teachers and the first steps in the field of music. Furthermore there is a reference to musical education and family of the composer and also to his sojourns abroad. Another part is devoted to Eben's sources of inspiration, which the author himself finds in Christianity, antiquity, Gregorian chant, folk songs, classical and living languages, poetry, organ as a royal instrument or in the relationship to children. The following chapters contain on one side chronological overview of the Eben's choral work for all types of choirs (male, female, mixed and children's choirs) and on the other side the Eben's vocal instrumental compositions (cantatas, oratorios and sacred choral...Název: SBOROVÁ TVORBA PETRA EBENA SE ZAMĚŘENÍM NA ANTICKÉ NÁMĚTY Autor: Mgr. Solon Kladas Katedra: Katedra hudební výchovy Školitel: Prof. PhDr. Stanislav Pecháček, Ph.D. Abstrakt: Ve své práci se autor zabývá životem a dílem jednoho z nejvýznamnějších soudobých českých skladatelů Petra Ebena. Sleduje celou sborovou a vokálně-instrumentální tvorbu od počátku do posledního období jeho kompoziční tvorby, uvádí nejaktuálnější informace o poslední době skladatelského života a zaměřuje se na sborová díla se starořeckým textem. První kapitola přináší stručný životopis autora, základní rodovou genealogii, seznamuje čtenáře s jeho učiteli a prvními kroky v hudbě. Dále se zmiňuje o hudebním vzdělání a rodině autora a také o jeho pobytech v cizích zemích. Další část práce je věnována inspiračním zdrojům Ebenovy tvorby, které skladatel sám spatřoval v křesťanství, gregoriánském chorálu, lidové písni, klasických i živých jazycích, básnickém slově, varhanách jako královském hudebním nástroji, ve vztahu k dětem či v antice. Následující kapitoly obsahují na jedné straně chronologický přehled veškeré Ebenovy sborové tvorby pro všechny typy sborů (sbory mužské, ženské, smíšené a dětské) a na straně druhé celé Ebenovo vokálně-instrumentální dílo (kantáty, oratoria a duchovní sborové skladby) se stručnou charakteristikou...Oddělení pro vědeckou činnostPedagogická fakultaFaculty of Educatio
Choral works of Petr Eben focused on ancient themes
No full textTitle: CHORAL WORKS PETR EBEN FOCUSED ON ANCIENT THEMES Author: Mgr. Solon Kladas Department: Music Department Supervisor: Prof. PhDr. Stanislav Pecháček, Ph.D. Abstract: In his thesis, the author deals with the life and work of one of the most important contemporary Czech composer Petr Eben. It monitors the whole choral and vocal- instrumental works from the beginning to the last period of his compositional work, it presents the last information about the lately composer's life and focuses on choral works, written on the ancient Greek text. The first chapter offers a brief description of the author's life, essential genealogy, his teachers and the first steps in the field of music. Furthermore there is a reference to musical education and family of the composer and also to his sojourns abroad. Another part is devoted to Eben's sources of inspiration, which the author himself finds in Christianity, antiquity, Gregorian chant, folk songs, classical and living languages, poetry, organ as a royal instrument or in the relationship to children. The following chapters contain on one side chronological overview of the Eben's choral work for all types of choirs (male, female, mixed and children's choirs) and on the other side the Eben's vocal instrumental compositions (cantatas, oratorios and sacred choral..
Scalable data storage for PV monitoring systems
No full textEfficient PV research which includes a prolonged data monitoring from
multiple experiments with different characteristics, requires a scalable
supporting system to handle all of the collected information. This paper
presents the development of a relational database for hosting all the necessary
information for data modeling, comparative analysis and O\&M systems.
Ramer-Douglas-Peucker algorithm and Timescaledb compression are used to
decrease the size of the time-series data and increase the performance of the
queries. A decision-making algorithm is presented for selecting the optimal
inputs to the Ramer-Douglas-Peucker algorithm to ensure the maximum disk space
savings while not losing any of the necessary information. Furthermore,
alternative ways of implementing the same database are provided.Comment: Editor: Geert Deconinck. 18th European Dependable Computing
Conference (EDCC 2022), September 12-15, 2022, Zaragoza, Spain. Fast Abstract
Proceedings - EDCC 202
Blind PV temperature model calibration
No full textThe determination of module temperature in a photovoltaic (PV) system is a crucial factor in PV modelling and the assessment of system health status. However, the scarcity of on-site temperature measurements poses a challenge, and existing PV temperature models encounter difficulties in accurately estimating temperatures in systems characterized by unique structural or locational attributes. This paper introduces a novel approach that enables the calibration of PV temperature models without relying on direct temperature measurements. Referred to as blind calibration, this method eliminates the requirement for temperature measurements, thus offering a promising solution to the aforementioned challenges. The method is validated using three datasets, demonstrating accurate PV temperature (TPV) estimation with mean absolute errors below 2 °C. The findings highlight the suitability of the proposed approach for various PV system types, while acknowledging limitations regarding certain system configurations
Investigating methods to improve photovoltaic thermal models at second-to-minute timescales
No full textThis work was supported by the SOLARISE project. The SOLARISE project received funding from the Interreg 2 Seas programme 20142020 co-funded by the European Regional Development Fund under subsidy contract N. 2S04-004, additionally co-funded by the Province of East Flanders
Investigating methods to improve photovoltaic thermal models at second-to-minute timescales
No full textThis paper presents a range of methods to improve the accuracy of
equation-based thermal models of PV modules at second-to-minute timescales. We
present an RC-equivalent conceptual model for PV modules, where wind effects
are captured. We show how the thermal time constant of PV modules can be
determined from measured data, and subsequently used to make static thermal
models dynamic by applying the Exponential Weighted Mean (EWM) approach to
irradiance and wind signals. On average, is min for
fixed-mount PV systems. Based on this conceptual model, the Filter- EWM - Mean
Bias Error correction (FEM) methodology is developed. We propose two thermal
models, WM1 and WM2, and compare these against the models of Ross, Sandia, and
Faiman on twenty-four datasets of fifteen sites, with time resolutions ranging
from 1s to 1h, the majority of these at 1min resolution. The FEM
methodology is shown to reduce model errors (RMSE and MAE) on average for all
sites and models versus the standard steady-state equivalent by -1.1K and
-0.75K respectively.Comment: 24 pages, 11 figures, 8 table
