Results 51 to 60 of about 12,962 (242)

Threshold Currents of Vacuum Arcs With Tungsten and Copper Cathodes

High Voltage, EarlyView.
ABSTRACT This paper presents the results of an experimental study aimed at determining the threshold current for triggering a vacuum arc discharge, the probability of arc ignition and the average arc operation time depending on the current for tungsten and copper electrodes.
P. S. Mikhailov, I. L. Muzyukin, I. V. Uimanov, D. L. Shmelev, S. A. Barengolts   +4 more
wiley   +1 more source

Some problems in the study of the chronology of the ancient nomadic cultures in Eurasia (9th - 3rd centuries BC) [PDF]

, 2002
This research is focused on the chronological investigations of ancient nomads belonging to the Scythian cultures which occupied the steppe and forest-steppe zones of Eurasia during the 9th-3rd centuries BC.
Vasiliev, S., Kovaliukh, N., Alekseev, A.Y., Cook, G., van der Plicht, J., Boltrik, Y., Kovaliukh, N.,, Bokovenko, N.A., Possnert, G., Alekseev, A.Yu., Sementsov, A., Boltrik, Yu.,, Dergachev, V.A., Skripkin, V., Cook, G.,, Dergachev, V.A.,, Sementsov, A.,, Plicht, J. van der,, Chugunov, K.A.,, Boltrik, Yu., Zaitseva, G.,, Chugunov, K.A., Zaitseva, G., Alekseev, A.Yu.,, Bokovenko, N.A.,, Skripkin, V.,, Scott, E.M., Scott, E.M.,, Vasiliev, S.,, Plicht, J. van der, Possnert, G.,   +30 more
core  

Carboniferous continental margin mafic-ultramafic sheeted dyke complex in the West Magnitogorsk zone (Southern Urals)

Известия высших учебных заведений: Геология и разведка, 2019
In the West of the aHochthon of Magnitogorsk zone thrusted onto the Precambrian complexes of the Uraltau zone, the Devonian island-arc complexes overlap stratigraphicalry the Ordovician and Silurian chert-basalt sequences and serpentine melange.
A. V. Ryazantsev, L. A. Novikov, A. A. Razumovskij   +2 more
doaj   +1 more source

On the 60th Anniversary of the Ural University Toponymic Expedition: A Return to the Urals

Вопросы ономастики, 2021
The article is dedicated to the 60th anniversary of the Ural University (now the Ural Federal University) Toponymic Expedition and its new research project studying the toponymy, vocabulary, and ethnocultural information related to the extraction and ...
Elena E. Ivanova
doaj   +1 more source

‘Humans Are Omnipotent and Beyond Their Destiny!’ Late Soviet Perspective on Girls’ Upbringing and the Female Self

Gender &History, EarlyView.
ABSTRACT The article examines post‐Stalinist Soviet expertise on girls’ education and upbringing, analysing texts for and about female adolescents created by specialists in pedagogical sciences, psychology, sociology, medicine as well as children's writers and journalists from different parts of the Union, including national republics. The text focuses
Ella Rossman
wiley   +1 more source

Genetic differentiation and adaptive evolution of buff‐tailed bumblebees in Asia

Insect Science, EarlyView.
This study investigates the genetic differentiation and local adaptation of the buff‐tailed bumblebee (Bombus terrestris) across its European and Asian populations. Using whole‐genome resequencing, we identified distinct genetic differences between populations, with Asian B. terrestris representing a unique genetic resource.
Long Su, Lele Ding, Paul H. Williams, Yan Liu, Ruijuan Wang, Xiaoyan Dai, Shan Zhao, Haolin Fu, Xiaomeng Zhao, Quangui Wang, Yancan Li, Huiling Sang, Robert M. Waterhouse, Yifan Zhai, Cheng Sun   +14 more
wiley   +1 more source

Variation in measuring and ophthalmic factors correlating with central corneal thickness in the Northern Finland birth cohort eye study

Acta Ophthalmologica, EarlyView.
Abstract Purpose To assess the correlation between optical coherence tomography (OCT) and ultrasound pachymetry (USP) as methods for analysing central corneal thickness (CCT) and to evaluate ophthalmic factors affecting CCT. Methods The eyes of 3070 subjects of the Northern Finland Birth Cohort (NFBC) were examined at the age of 45–49 years.
Tuomas Qvist, Oona Ahokas, Johanna Liinamaa, Ville Saarela   +3 more
wiley   +1 more source

Everyday Life of Fine Lady in Province (by Material of Letters of 1840-1850-ies of Ye. A. Solomirskaya, Ural Factory Owner’s Wife)

Научный диалог, 2019
On the basis of archival materials - letters of a metropolitan fine lady, wife of co-owner of Sysertsky plants (Perm province) Yekaterina Aleksandrovna Solomirskaya, written in the middle of the 19th century from the province (Sysertsky plant or ...
M. B. Larionova
doaj   +1 more source

Palaeoglaciations in the Polar and Subpolar Ural Mountains

Boreas, EarlyView.
The Ural Mountains form a major physiographic boundary between the East European Plain and West Siberia, both repeatedly glaciated during the Pleistocene by the Barents–Kara ice sheet. Although the present‐day topography reflects significant glacial modification, the extent, chronology and interaction of mountain glaciers with the Barents–Kara ice ...
Bartosz Kurjanski, Matteo Spagnolo, Irina Bushueva, Iestyn Barr, Brice R. Rea, Olga Solomina, Stanislav Kutuzov   +6 more
wiley   +1 more source

YARATKULOVO – A NEW H-CHONDRITE IN THE URALS: MINERALOGICAL DATA [PDF]

Минералогия, 2017
The Yaratkulovo meteorite was found in 2016 in the Argayash district of the Chelyabinsk region. It is a «chondrite breccia», in which the light coarse-grained fragments (primary chondrite) occur in the dark fine-grained matrix (impact assemblages ...
V.V. Sharygin, S.V. Kolisnichenko
doaj