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  1. No Access

    Article

    Methods for a Partial Differential Equation Discovery: Application to Physical and Engineering Problems

    The paper presents two methods for discovering differential equations from available data. The first method uses a genetic algorithm with evolutionary optimization, while the second method employs the best sub...

    N. Y. Bykov, A. A. Hvatov, T. A. Andreeva… in Moscow University Physics Bulletin (2023)

  2. No Access

    Article

    Method of Eliminating Flatness Defects of Heat Bonded Glass Plates

    A method of eliminating gaps between heat bonded glass plates has been developed using a system for distributing mechanical load. The proposed method was investigated theoretically and experimentally. The resu...

    K. I. Milanina, A. N. Agafonov, T. A. Andreeva in Glass and Ceramics (2023)

  3. No Access

    Article

    Shrinkage of Glaciers in Eastern Altai (Shapshal Center) after the Little Ice Age Maximum

    Glaciers of the little-studied Shapshal Glaciation Center in Eastern Altai during the Little Ice Age maximum have been reconstructed and the pattern of their subsequent reduction has been analyzed. The shrinka...

    D. A. Ganyushkin, O. S. Konkova, K. V. Chistyakov, D. V. Bantcev… in Water Resources (2022)

  4. No Access

    Article

    Reference Adiabatic Calorimeter: Hardware Implementation and Control Algorithms

    The paper describes the design and control system of a reference adiabatic calorimeter, which is part of the State Primary Standard for the unit of the specific thermal capacity of solids (GET 60-2019). The co...

    T. A. Andreeva, N. Yu. Bykov, V. V. Vlasova, T. A. Kompan… in Measurement Techniques (2022)

  5. No Access

    Article

    High-Intensity Focused Ultrasound: Heating and Destruction of Biological Tissue

    The results of a numerical study of heating and destruction of a biological tissue under the action of a series of focused ultrasound pulses generated by a multielement array (tumor treatment programs) are pre...

    T. A. Andreeva, A. E. Berkovich, N. Y. Bykov, S. V. Kozyrev… in Technical Physics (2020)

  6. No Access

    Article

    Influence of production parameters on greenhouse-gas emissions in ferrous metallurgy

    The influence of the production parameters on greenhouse-gas emissions in ferrous metallurgy is demonstrated. Relevant factors include change in plant output, product range, the technology for steel smelting a...

    V. G. Litvinenko, V. D. Mantula, A. L. Kanevskii, T. A. Andreeva in Steel in Translation (2010)

  7. No Access

    Article

    Ecological preferences of forest voles

    Basic climatic parameters (annual average air temperature and annual amount of precipitation) over 12–25 years have been analyzed with regard to their values corresponding to different levels of abundance in t...

    T. A. Andreeva, N. M. Okulova in Russian Journal of Ecology (2009)

  8. No Access

    Article

    Transfer of mitochondrial genome of the northern redbacked vole (Clethrionomys rutilus) to the bank vole (C. glareolus) in northwestern Europe

    S. G. Potapov, N. A. Illarionova, T. A. Andreeva… in Doklady Biological Sciences (2007)

  9. No Access

    Article

    On the taxonomic rank of ciscaucasicus and its relationships with the pygmy wood mouse Sylvaemus uralensis inferred from the mtDNA cytochrome b gene sequence

    To specify the taxonomic rank of form ciscaucasicus (independent species Sylvaemus ciscaucasicus, or intraspecific form of pygmy wood mouse, S. uralensis), a 402-bp the mtDNA cytochrome b gene fragment (402 bp) w...

    A. E. Balakirev, M. I. Baskevich, A. P. Gmyl, N. M. Okulova… in Russian Journal of Genetics (2007)

  10. No Access

    Article

    On the possibility of determining spalling strength of metals in a submillisecond range from experiments with a penetrating radiation effect on a target

    The strength of a metal under the action of short pulses is of great interest. Meanwhile, the problem concerning the magnitude of a tensile stress that leads to cleavage has not yet been solved theoretically. ...

    T. A. Andreeva, S. N. Kolgatin in Technical Physics (2001)

  11. No Access

    Article

    Choosing an adequate mathematical model in problems with high pulsed energy deposition

    The problems of choosing the optimal mathematical model for a prescribed range of parameters of a pulsed action are discussed. A preliminary analysis performed by similarity and dimensional-analysis methods us...

    T. A. Andreeva, S. N. Kolgatin, K. V. Khishchenko in Technical Physics (1998)

  12. No Access

    Article

    The rings of quotients of free algebras

    It is proved that a symmetric Utumi ring of quotients, U, of a free associative (noncommutative) algebra F(X) with unity coincides with the algebra itself, U=F(X). From this, we obtain a similar statement conc...

    T. A. Andreeva, I. V. L'vov, V. K. Kharchenko in Algebra and Logic (1996)

  13. No Access

    Article

    Formation of nitro-1,3,5-triazines upon the photolysis of azido-1,3,5-triazines in the presence of molecular oxygen

    T. A. Andreeva, V. P. Krivopalov… in Bulletin of the Academy of Sciences of the… (1987)

  14. No Access

    Article

    Photolysis of 2-azidopyrimidines in the presence of molecular oxygen and the formation of 2-nitropyrimidines

    V. P. Mamaev, T. A. Andreeva… in Bulletin of the Academy of Sciences of the… (1986)

  15. No Access

    Article

    Photolysis of SO2-alkane-NO systems in the gas phase

    The photolysis products of SO2-pentane-NO mixtures are N2O, H2O and a compound designated as RNO. Kinetic data obtained by OC method confirm the previously proposed scheme of photolysis. Also studied was the phot...

    T. A. Andreeva, V. I. Makarov… in Reaction Kinetics and Catalysis Letters (1982)

  16. No Access

    Article

    Effect of certain dispersed additives on methane flame propagation

    T. A. Andreeva, R. S. Tyul'panov, V. V. Boldyrev… in Combustion, Explosion and Shock Waves (1971)