Results 51 to 60 of about 90,937 (258)
Heat Transfer, EarlyView.ABSTRACT This study reviews recent advances in using nanofluids to enhance double‐pipe heat exchanger (DPHE) efficiency. The review examines several types of nanofluids, that is, water‐based graphene oxide and CuO–water nanofluids, assessing their effectiveness under different operating conditions, including inlet temperature and nanoparticle volume ...
Farhan Lafta Rashid +8 more
wiley +1 more source
Labor Hoarding in Russia: Where Does it Come From? [PDF]
, 2000 The paper focuses on the labor "hoarding" problem in Russian. We studied two forms of "hoarding": unpaid leaves and short-time work. Our research is based on the Russian Longitudinal Monitoring Survey (RLMS) database.
Koumakhov, Rouslan, Najman, Boris
core +3 more sources
On the genesis of deposits of the Pervy Severny iron ore district
Литосфера, 2019 Research subject. This study was aimed at examining iron ore and ore-bearing strata in the Pervy Severny iron ore district in the Northern part of the Tagil depression.
G. A. Petrov
doaj +1 more source
Invasive plant species in the forest parks of Yekaterinburg [PDF]
, 2019 Invasive species-introduced species, spontaneously settled outside their natural range, and successfully adapted to the new growing conditions. The problem of invasive species penetration, both herbaceous and woody, has long been a concern of scientists,
Luganskaya, S. N. +2 more
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Архитектурно-планировочный анализ Демидовского заводского госпиталя: история почти 200-летней эксплуатации [PDF]
, 2015 Article is devoted to history one of the first Ural medical institutions — Demidovsky factory hospital. Authors consider architectural and planning decisions, reconstruction questions, condition of hospital today.
Ananin, M. Y. +5 more
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Mathematical Modeling of Measured Recalescence Velocities
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT A moving‐boundary problem of synchronous directional and volumetric solidification in undercooled liquid drops is formulated and solved. Directional solidification is caused by the temperature gradient along the spatial direction, whereas volumetric growth of new phase elements is caused by the melt undercooling ahead of the phase transition ...
Dmitri V. Alexandrov +3 more
wiley +1 more source
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 +2 more
doaj +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.
Alekseev, A.Y. +13 more
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Tracing holotype trajectories: Mapping the movement of the most valuable herbarium specimens
PLANTS, PEOPLE, PLANET, EarlyView.Global efforts to protect biodiversity depend on fair access to key plant specimens. This study examines the distribution of 119,361 holotypes—unique herbarium specimens used to formally describe new plant species. By linking collection and storage data, we found that holotypes are increasingly held closer to their places of origin, particularly in ...
Dominik Tomaszewski +2 more
wiley +1 more source
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