Results 51 to 60 of about 4,860 (196)
Thermodynamic modeling of the NbeB system [PDF]
In the present work, the Nb–B binary system was thermodynamically optimized. The stable phases in this system are BCC (niobium), Nb3B2, NbB, Nb3B4, Nb5B6, NbB2, B (boron) and liquid L.
Carvalho Coelho, Gilberto +4 more
core +3 more sources
Streets of Medieval Bolgar [PDF]
The article considers the topical study issues associated with the urban planning of medieval Bolgar (9th –15th cc.) – the issues of localization and organization of the street space. The results of archaeological studies allow not only to trace the layout of individual streets, but also to determine the connection of the street structure of the Golden
openaire +2 more sources
The paper outlines the results of first purposeful research on isotopic composition (carbon 13С and nitrogen 15N) in the bones collagen of domestic and wild animals from medieval towns at the European part of Russia. The published information about δ 13С
Yavorskaya Liliya Vyacheslavovna +3 more
doaj +1 more source
The study was conducted within the Bolgar historical and archaeological complex in the Republic of Tatarstan, with the aim to determine contents and distribution of antrocomass, i.e., charred particles in anthropogenically transformed soils of different ...
A. Golyeva +3 more
semanticscholar +1 more source
“We Started Over Again, We Were Young”: Postwar Social Worlds of Child Holocaust Survivors in Montreal [PDF]
Thousands of child Holocaust survivors arrived in Montreal, Quebec, between 1947 and 1952, looking to remake their lives, rebuild their families, and recreate their communities. Integration was not seamless.
Sheftel, Anna, Zembrzycki, Stacey
core +1 more source
The first attempt to the deposition of WB3 films using nanosecond Nd:YAG laser demonstrated that deposited coatings are superhard. However, they have very high roughness. The deposited films consisted mainly of droplets. Therefore, in the present work, the explanation of this phenomenon is conducted.
Tomasz Moscicki, Giulio Cerullo
wiley +1 more source
Spanish Ceramics in the Medieval Bolgar [PDF]
The article addresses a series of container vessels (amphorae and pithoi) found during the recent digs on Bolgar, attributed as Spanish production. All finds come from layers and structures of 1330–1360s. Three groups can be distinguished among the Spanish imports, different in terms of their technological and morphological features. Two of them belong
openaire +2 more sources
Modeling the Radio Background from the First Black Holes at Cosmic Dawn: Implications for the 21 cm Absorption Amplitude [PDF]
We estimate the 21 cm Radio Background from accretion onto the first intermediate-mass Black Holes between $z\approx 30$ and $z\approx 16$. Combining potentially optimistic, but plausible, scenarios for black hole formation and growth with empirical ...
Chang, T. -C. +5 more
core +4 more sources
The widespread belief that the Jews were far more affluent than the non-Jews in Hungary in the decades before the Holocaust lacks sufficient empirical corroboration. The present study aims to present the income disparity between Jews and non-Jews in the
Dániel Bolgár
doaj +1 more source
Enhanced global signal of neutral hydrogen due to excess radiation at cosmic dawn
We revisit the global 21cm signal calculation incorporating a possible radio background at early times, and find that the global 21cm signal shows a much stronger absorption feature, which could enhance detection prospects for future 21 cm experiments ...
Feng, Chang, Holder, Gilbert
core +1 more source

