scholarly journals Latitudinal decline in stand biomass and productivity at the elevational treeline in the Ural mountains despite a common thermal growth limit

2020 ◽  
Vol 47 (8) ◽  
pp. 1827-1842 ◽  
Author(s):  
Frank Hagedorn ◽  
Melissa A. Dawes ◽  
Maxim O. Bubnov ◽  
Nadezhda M. Devi ◽  
Andrey A. Grigoriev ◽  
...  
Keyword(s):  
Ural Mountains ◽  
Thermal Growth ◽  
Growth Limit

Interesting records of Butterflies (Lepidoptera, Papilionoidea) in the Ural Mountains (Russia)

2018 ◽  
Vol 69 (4) ◽  
pp. 239-242
Author(s):  
Sergey A. Rybalkin ◽  
Valentina O. Zurilina ◽  
Roman V. Yakovlev
Keyword(s):  
New Records ◽  
Ural Mountains

New records of Pieridae and Nymphalidae are given for the Ural Mountains.

Development of the structure of thin SiO2 films during thermal growth on Si substrate

1993 ◽  
Vol 22 (1-4) ◽  
pp. 39-42 ◽  
Author(s):  
I.P. Lisovskii ◽  
V.G. Litovchenko ◽  
V.V. Khatko
Keyword(s):  
Si Substrate ◽  
Sio2 Films ◽  
Thermal Growth

Thermal growth of organic supramolecular crystals with screw dislocations

2012 ◽  
Vol 112 (1) ◽  
pp. 301-305 ◽  
Author(s):  
Alexandre Dhotel ◽  
Laurent Delbreilh ◽  
Boulos Youssef ◽  
Jinyue Jiang ◽  
Gérard Coquerel ◽  
...  
Keyword(s):  
Screw Dislocations ◽  
Thermal Growth ◽  
Supramolecular Crystals

Quaternary glaciations in the Verkhoyansk Mountains, Northeast Siberia

2010 ◽  
Vol 74 (1) ◽  
pp. 145-155 ◽  
Author(s):  
Georg Stauch ◽  
Frank Lehmkuhl
Keyword(s):  
Climate Changes ◽  
Ice Sheets ◽  
Optically Stimulated Luminescence ◽  
Ural Mountains ◽  
The West ◽  
Local Climate ◽  
Terminal Moraine ◽  
Geomorphological Mapping ◽  
Eurasian Continent ◽  
Polar Ural

AbstractGeomorphological mapping revealed five terminal moraines in the central Verkhoyansk Mountains. The youngest terminal moraine (I) was formed at least 50 ka ago according to new IRSL (infrared optically stimulated luminescence) dates. Older terminal moraines in the western foreland of the mountains are much more extensive in size. Although the smallest of these older moraines, moraine II, has not been dated, moraine III is 80 to 90 ka, moraine IV is 100 to 120 ka, and the outermost moraine V was deposited around 135 ka. This glaciation history is comparable to that of the Barents and Kara ice sheet and partly to that of the Polar Ural Mountains regarding the timing of the glaciations. However, no glaciation occurred during the global last glacial maximum (MIS 2). Based on cirque orientation and different glacier extent on the eastern and western flanks of the Verkhoyansk Mountains, local glaciations are mainly controlled by moisture transport from the west across the Eurasian continent. Thus glaciations in the Verkhoyansk Mountains not only express local climate changes but also are strongly influenced by the extent of the Eurasian ice sheets.

Experimental and Analytical Studies on Flexure Pivot Tilting Pad Gas Bearings With Dampers Applied to Radially Compliant Pads

2009 ◽  
Author(s):  
Daejong Kim ◽  
Aaron Rimpel
Keyword(s):  
Simulation Method ◽  
Analysis Tool ◽  
Primary Analysis ◽  
Successful Operation ◽  
Gas Bearings ◽  
Viscoelastic Dampers ◽  
Thermal Growth ◽  
Tilting Pad ◽  
Rotor Bearing ◽  
First Time

Hydrodynamic flexure pivot tilting pad gas bearings (FPTPGBs) can enable successful operation of oil-free microturbomachinery, and FPTPGBs with radially compliant pads (FPTPGB-Cs) permit rotor centrifugal and/or thermal growth to exceed original bearing clearances and achieve higher speeds. This work presents the experimental and analytical study of such bearings and the application of dampers behind the pad radial compliance structure. A time domain orbit simulation method was implemented as the primary analysis tool to predict rotor-bearing response to imbalance, the presence and location of critical speeds, etc., and compare with test results. Experiments demonstrate the stable hydrodynamic operation of FPTPGBs with a ∼28.6 mm, 0.8 kg rotor above 120 krpm for the first time. The rotor-bearing system was intentionally destabilized in tests by increasing bearing clearances, and viscoelastic dampers added behind the FPTPGB pads delayed the onset of subsynchronous vibrations (from 43 krpm without damper to above 50 krpm with damper). Midrange subsynchronous vibrations of the destabilized system initiated at ∼20 krpm were suppressed by ∼25 krpm due to the stabilizing effect of rotor centrifugal growth. The viscoelastic dampers had a negligible effect on suppressing these midrange subsynchronous vibrations in experiments, but this was not demonstrated in simulations, presumed to be due to much lower stiffness contribution of the damper at lower frequencies.

scholarly journals Characteristics оf growth and fluorescence оf certain types оf algae under acclimation to different temperatures under conditions оf cultures

2019 ◽  
Vol 59 (3) ◽  
pp. 347-359
Author(s):  
A. I. Akimov ◽  
E. S. Solomonova
Keyword(s):  
Growth Rate ◽  
Positive Temperature ◽  
Tolerance Zone ◽  
Lower Growth ◽  
Culture Collections ◽  
Thermal Growth ◽  
Different Temperatures ◽  
Temperature Rate ◽  
Relative Variable ◽  
Stable Growth

The temperature rate growth dependence and the relative variable fluorescence, (Fv/Fm) of some of marine planktonic algae from the culture collections were investigated. The algae optima temperature growth (Topt), upper and lower limits tolerant zone of species, and in some cases, changes in the dynamics of these parameters outside the tolerance zone were determined. The similarity of species temperature characteristics with vegetation conditions these species in the nature was observed. Prolonged stress exposure to low positive temperature (4–6°C) was reversible; recovery of the growth rate and Fv/Fm was observed immediately after the increase of temperature. At temperatures above Topt on 2–3°C for diatoms was observed gradual degradation of culture, which, depending on the duration of exposure can lead to the death of the algae. Dinoflagellate species of the summer growing season had higher temperature resistance, and remained viable at temperatures above 5–8°C high Topt, due to lower growth rates. Rising part temperature dependence of the rate of growth approximated by a linear relation, the regression coefficient is 0.08–0.13 for diatoms and 0.03–0.11 for dinophyte. The normalized values for this parameter (the relative value of change in the growth rate, %) was 5.3±0.4 for diatoms and 6.4±0.5 for dinophyte at 1°C of temperature change. For dinophyte species were also been observed larger values of the parameter Q10. The value Fv/Fm for most species had high values in the whole temperature range, in which maintained a stable growth of algae. The fall of this parameter was observed in increasing the border of tolerance zone, and was associated with inhibition of thermal growth processes.

scholarly journals Assessments of the effects of permanent internal migration in the Russian literature at the late 19th and early 20th centuries

2019 ◽  
Vol 3 (2) ◽  
pp. 10-21
Author(s):  
Valentina M. Moiseenko
Keyword(s):  
20Th Century ◽  
Internal Migration ◽  
Russian Literature ◽  
Ural Mountains ◽  
Migration Policies ◽  
Political Literature ◽  
Logical Conclusion ◽  
Research Task ◽  
And Migration ◽  
Agrarian Crisis

In the context of the agrarian crisis in Russia (USSR) in the second half of the 19th and the first third of the 20th century, much attention in the socio-political literature was paid to the migration of peasants to the extensive undeveloped areas, mainly to the east of the Ural mountains. The changing characteristics of migration and migration policies during this period have resulted in a variety of methods for assessing the effects of migration. The experience of the second half of the 19th and the first third of the 20th century is interesting not only in the dynamics of assessment of the effects, but also in the logical conclusion of the study of this problem. It is known that even today the effects of migration remain a complex and largely unsolved research task.

scholarly journals Calvary of the Germans in Hungary at the end of WWII

2015 ◽  
Vol 7 (1) ◽  
pp. 51-59
Author(s):  
Eleonóra Matkovits-Kretz
Keyword(s):  
World War Ii ◽  
Soviet Union ◽  
World War ◽  
Ural Mountains ◽  
The Caucasus ◽  
Left Behind ◽  
The Soviet Union ◽  
Red Army ◽  
Forced Resettlement ◽  
Forced Labour

Abstract The German community in Hungary suffered many blows at the end of World War II and after it, on the basis of collective guilt. Immediately after the Red Army had marched in. gathering and deportation started into the camps of the Soviet Union, primarily into forced-labour camps in Donetsk, the Caucasus, and the Ural mountains. One third of them never returned. Those left behind had to face forced resettlement, the confiscation of their properties, and other ordeals. Their history was a taboo subject until the change of the political system in 1989. Not even until our days, by the 70th anniversary of the events, has their story reached a worthy place in national and international remembrance. International collaboration, the establishment of a research institute is needed to set to rights in history the story of the ordeal of the German community after World War II. for the present and future generations

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