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Start Over Coverage 387-397

1. Assessment of multi-GNSS precise orbit and clock products from different analysis centers based on precise point positioning

Creator:
Li, Weiguo and Kačmařík, Michal
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
satelitní navigační systémy, satellite navigation systems, Multi-GNSS, precise products, Precise Point Positioning, IGS MGEX, RTKLIB, 7, and 551
Language:
English
Description:
Performance of 24h static Precise Point Positioning (PPP) solutions based on multi-GNSS precise satellite orbit and clock products from four analysis centers and seven various constellation combinations was studied to evaluate their quality and characteristics. Data from ten European and four Chinese GNSS stations and 152 days long period from year 2020 were processed. Obtained coordinates were firstly compared with those provided by IGS final weekly combined solution. In Europe, the best agreement with this reference product was reached by solutions including Galileo signals, namely by a combination of GPS+GLONASS+Galileo systems with a mean RMS of 11 mm. This situation was different in China where inclusion of Galileo always led to worse results and the best agreement was achieved by a combination of GPS+GLONASS systems. Although product provided by German Research Center for Geosciences (GFZ) could be selected as the best performing over Europe and product by Center for Orbit Determination in Europe (CODE) over China, differences between individual precise products were mostly at a minimal level. Secondly, coordinates repeatability over the processed period was computed in order to assess the positioning stability. In this regard, the lowest values in both horizontal and vertical direction were reached by GPS+GLONASS solutions. From the perspective of precise products, the repeatability results were dependent on the selected constellation where mainly a specific behavior of product from Wuhan University (WUM) for Galileo system was observed., Weiguo Li and Michal Kačmařík., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. Príležitostná poézia Bohuslava Tablica

Creator:
Mráz, Peter
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
The author presents the Slovak Revival poet and translator Bohuslav Tablic (1769–1832) in Czech -Slovak literary contexts. He draws attention to Tablic’s published works in Antonín Jaroslav Puchmajer’s almanacs and Josef Jungmann’s Slovesnost (Literature). He points out that Tablic’s occasional verse remains neglected by readers. The author identifi es individual typological groups in Tablic’s occasional verse, based on the reasons for it having been written, identifying Tablic’s verse for the dead, for weddings, birthdays, and prefaces, celebrating the commencement of a new job, and events important to the nation, the Church, and schools. The article presents Tablic as a poet whose occasional verse came to terms with the relics of the Baroque, the lasciviousness of Rococo, and the impetuses of Enlightenment Neo- -Classicism.
Language:
Czech
Description:
Autor představuje slovenského obrozenského básníka a překladatele Bohuslava Tablica (1769 – 1832) v česko-slovenských literárnych souvislostech, poukazuje na jeho publikování v Puchmajerových al-manaších a v Jungmannově Slovesnosti. Upozorňuje, že z rámca Tablicovy tvorby zůstává dodnes čtenářsky opomíjená básníkova pžíležitostná poezie. Jednotlivé typologické skupiny Tablicovy príležitostné poezie od-vozuje z motivace jej vzniku, identifikuje básnikovy epicédia, svatebná, jubilejní a propemptické básně, básně oslavující nástup do úřadu, básně napsané k události významné pro národ, církev či školství. Studie představuje Tablice jako básnika, jehož příležitostná poezie se vyrovnává s relikty baroka, s lascívnosťou rokoka, podnety osvícenského klasicismu.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public