Temat: Eastern Black Sea Region - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Estimation of standard duration maximum rainfall by using regression models
Autorzy:: Yerdelen, Cahit
Asikoglu, Ömer Levend
Abdelkader, Mohamed
Eris, Ebru
Powiązania:: https://bibliotekanauki.pl/articles/1841938.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: Eastern Black Sea Region
Marmara Region
regression model
standard duration maximum rainfall
temporal distribution of maximum daily rainfall
Opis:: Gauging stations of meteorological networks generally record rainfall on a daily basis. However, sub-daily rainfall observations are required for modelling flood control structures, or urban drainage systems. In this respect, determination of temporal distribution of daily rainfall, and estimation of standard duration of rainfall are significant in hydrological studies. Although sub-daily rainfall gauges are present at meteorological networks, especially in the developing countries, their number is very low compared to the gauges that record daily rainfall. This study aims at developing a method for estimating temporal distribution of maximum daily rainfall, and hence for generating maximum rainfall envelope curves. For this purpose, the standard duration of rainfall was examined. Among various regression methods, it was determined that the temporal distribution of 24-hour rainfall successfully fits the logarithmic model. The logarithmic model’s regression coefficients (named a and b) were then linked to the geographic and meteorological characteristics of the gauging stations. The developed model was applied to 47 stations located at two distinct geographical regions: the Marmara Sea Region and Eastern Black Sea Region, Turkey. Various statistical criteria were used to test the method's accuracy, and the proposed model provided successful results. For instance, the RMSE values of the regression coefficients a and b in Marmara Regions are 0.004 and 0.027. On the other hand, RMSE values are 0.007 and 0.02 for Eastern Black Sea Region.
Źródło:: Journal of Water and Land Development; 2021, 50; 281-288
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Geostrategic Significance of Ukraine in the Region of Central and Eastern Europe in the Works of Dmytro Dontsov and Yurii Lypa
Znaczenie geostrategiczne Ukrainy w regionie Europy Środkowo-Wschodniej w pracach Dmytra Doncowa i Jurija Łypy
Autorzy:: Starodub, Taras
Powiązania:: https://bibliotekanauki.pl/articles/1878403.pdf
Data publikacji:: 2020-12-31
Wydawca:: Uniwersytet Mikołaja Kopernika w Toruniu. Wydawnictwo UMK
Tematy:: Central and Eastern Europe
the Baltic-Black Sea region
geopolitics
Ukrainian state
Russian aggression
Europa Środkowo-
-Wschodnia
region bałtycko-czarnomorski
geopolityka
państwo ukraińskie
rosyjska agresja
Opis:: The purpose of this paper is to determine the geostrategic role of Ukraine in Central and Eastern Europe and the Baltic-Black Sea region, its geopolitical potential to become a major integration factor for this macro-region, and its ability to withstand the expansive challenges of Russia in extrapolating the views of Ukrainian thinkers D. Dontsov and Y. Lypa. After all, the region of Central and Eastern Europe became the base for a large-scale hybrid war. Undoubtedly, Ukraine remains the main target of Russian military and information aggression. However, in contrast with Russian aggression, countries in Central and Eastern Europe have to develop a common consolidated and coordinated position in order to maintain stability and security in this macro-region. A significant part in the works by Dmytro Dontsov and Yurii Lypa is given to the development of cooperation between the countries of Central-Eastern Europe and the Baltic-Black Sea region to restrain Russia’s aggression. At the same time, Ukrainian thinkers determine the place and the role of the Ukrainian state in the integration of this geopolitical space and its strategic importance in the development of Central and Eastern Europe.
Celem niniejszej pracy jest określenie geostrategicznej roli Ukrainy w Europie Środkowo-Wschodniej oraz w regionie bałtycko-czarnomorskim, jej potencjału geopolitycznego, by stać się głównym czynnikiem integracji dla tego makroregionu, a także – poprzez ekstrapolację poglądów ukraińskich myślicieli D. Doncowa i J. Łypy – wskazanie możliwości przeciwstawienia się Ukrainy ekspansywnym zakusom Rosji. Region Europy Środkowo-Wschodniej stał się terenem działań prowadzonej na wielką skalę wojny hybrydowej. Bez wątpienia głównym celem rosyjskiej agresji wojskowej i informacyjnej pozostaje Ukraina. W obliczu rosyjskiej agresji kraje Europy Środkowo-Wschodniej muszą wypracować wspólne, skonsolidowane i skoordynowane stanowisko w celu utrzymania stabilności i bezpieczeństwa w makroregionie. W pracach Dmytra Doncowa i Jurija Łypy arcyważne miejsce zajmuje zagadnienie rozwijania współpracy między krajami Europy Środkowo-Wschodniej i regionu bałtycko-czarnomorskiego w celu powstrzymania rosyjskiej agresji. Jednocześnie ukraińscy myśliciele określają miejsce i rolę państwa ukraińskiego w procesie integracji tej przestrzeni geopolitycznej oraz jego strategiczne znaczenie w rozwoju Europy Środkowo-Wschodniej.
Źródło:: Historia i Polityka; 2020, 34 (41); 147-158
1899-5160
2391-7652
Pojawia się w:: Historia i Polityka
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Chaganat chazarski a Skandynawowie w Europie Wschodniej – kontakty i ich charakter w IX–X wieku
Autorzy:: Polek, Krzysztof
Powiązania:: https://bibliotekanauki.pl/articles/27311702.pdf
Data publikacji:: 2022
Wydawca:: Uniwersytet Komisji Edukacji Narodowej w Krakowie
Tematy:: the beginnings of Kievan State
Pre-Christian Rus’
Black Sea littoral
Caspian Sea
littoral
Eastern Europe
Upper and Lower Volga region
Middle Dniepr region
eastern Slavs
ethnic and political relations
Khazar Khaganate
Pax Khazarica
Magyars
Volga Bulgars
Pechenegs
Scandinavians
Rurik
Oleg
Igor
Sviatoslav
Vladimir
początki państwa kijowskiego
Ruś przedchrześcijańska
wybrzeże czarnomorskie
wybrzeże kaspijskie
Europa Wschodnia
region środkowego Dniepru
relacje etniczne i polityczne
chaganat chazarski
Pax Chazarica
Węgrzy
Pieczyngowie
Skandynanowie
Ruryk
Światosław
Włodzimierz
Bułgarzy nadwołżańscy
region górnej i dolnej Wołgi
Opis:: From its emergence in the 7th century until its fall in 965, the Khazar Khaganate played a decisive role among the tribes and peoples settled in Eastern Europe. The Pax Khazarica contributed to the stabilization of ethnic and political relations in the region, which in turn gave the khaganate a high status in contacts with the Byzantine Empire and the Abbasid Caliphate. The Khazars benefited from the favorable geographic location and the benefits they gained from participating in long-distance trade. With the arrival of Scandinavian newcomers and the development of their settlement in the northern and north-eastern part of the Ruthenian lands (the area around Lake Ladoga and the upper Volga basin), contacts with them played an increasingly important role in the history of the Chaganate in the 9th-10th centuries. Oleg’s taking of power in Kiev and the territorial development of the Ruthenian state was a crucial moment. Although the Khazars maintained a strong position among the peoples and tribes of Eastern Europe during the first half of the 10th century, it was not without difficulties. The reason was the growing activity of the Scandinavians not only among the Slavs who settled in the basin of the Dnieper, Oka and the upper Volga, but also in the lands that were the immediate hinterland of the khaganate (Black Sea region, the mouth of the Volga and the Caspian region). In addition to merchant expeditions, the Varangians organized – with great panache and range - raids of a looting nature (e.g. Prince Igor’s campaigns). It cannot be ruled out that they inuenced the nature of the relationship between the Khazars and their dependent tribes in Eastern Europe. The collapse of the Khaganate, which took place as a result of the war campaigns undertaken by Prince Sviatoslav (965, 969), may indicate a more significant (than previously assumed) internal weakening of the Khazar state. Undoubtedly, it was related to the change in the current system of political and ethnic relations in Eastern Europe, and the actions of the Kiev princes played a decisive role. Another reason was the change in the course of the existing long-distance trade routes, and thus the reduction of the influence that the Khazars obtained from their control. Despite the progress in research on the history of the khaganate, little is known about its relations with the Scandinavians settled in Eastern Europe, as well as with Slavic tribes, including those remaining outside the Khazar sphere of influence, and the consequences of the fall of Khazar domination for the region’s economy. The research conducted so far shows that the influence of the Khazars, although not confirmed in all spheres, was more intense, as evidenced by the reception of the kagan title in relation to the Ruthenian rulers in the 10th-11th centuries.
Źródło:: Res Gestae. Czasopismo Historyczne; 2022, 14; 5-57
2450-4475
Pojawia się w:: Res Gestae. Czasopismo Historyczne
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Eastern Black Sea Region" wg kryterium: Temat

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język