Now showing items 21-40 of 96

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      Heat capacity of nanostructured multiferroics BiFe1–x Zn x O3 

      Amirov, A. A.; Kallaev, S. N.; Omarov, Z. M.; Yusupov, D. M.; Chaudhary, Y. A.; Bendre, S. T.; Makoed, I. I. (MAIK Nauka/Interperiodica, 2017-09-20)
      The heat capacity of ceramic BiFe1–x Zn x O3 multiferroics has been studied in the temperature range 150–750 K. It is found that the antiferromagnetic transition temperature T N slightly shifts to lower temperatures as the ...
      2020-09-18
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      Heavy metal contamination in surface runoff sediments of the urban area of Vilnius, Lithuania 

      Ignatavičius, Gytautas; Valskys, Vaidotas; Bulskaya, Ina; Paliulis, Dainius; Zigmontienė, Aušra; Satkūnas, Jonas (Estonian Academy Publishers, 2017)
      Surface runoff from urbanized territories carries a wide range of pollutants. Sediments in untreated runoff from direct discharge stormwater systems significantly contribute to urban waterway pollution. In this study, heavy ...
      2020-09-16
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      Implicit iteration method of solving linear equations with approximating right-hand member and approximately specified operator 

      Matysik, Oleg (Київський нацiональний унiверситет iменi Тараса Шевченка, 2014)
      The article deals with the study of the implicit method of solving linear equations with nonnegative self-adjoint and nonself-adjoint limited operator in Hilbert space. It aims at proving the method convergence in case of ...
      2020-09-18
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      Intrathoracic negative pressure therapy and/or endobronchial valve for pleural empyema minimal invasive management: case series of thirteen patients and review of the literature 

      Panko, Siarhei; Vakulich, Denis; Karpitski, Aliaksandr; Zhurbenka, Henadzi; Shestiuk, Andre; Boufalik, Rostislav; r Ihnatsiuk, Aliaksand (Kielce (Poland), 2020)
      Introduction: Intrathoracic negative pressure therapy is an adjunct to standard methods of complex empyema management in debilitated patients. Nevertheless, the use of endoscopic one-way endobronchial valves to ...
      2020-12-11
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      Influence of rare-earth doping on the structural and dielectric properties of orthoferrite La0.50R0.50FeO3 ceramics synthesized under high pressure 

      Makoed, I. I.; Liedienov, N. A.; Pashchenko, A. V.; Levchenko, G. G.; Tatarchuk, D. D.; Didenko, Y. V.; Amirov, A. A.; Rimski, G. S.; Yanushkevich, K. I. (Elsevier B.V, 2020)
      The effect of co-doping on the structural and dielectric properties of the La0.50R0.50FeO3 orthoferrites for a full number of substitutions (R ј CeeLu) has been experimentally and theoretically studied using X-ray diffraction, ...
      2020-12-15
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      M.A. Krasnosel’skii theorem and iterative methods for solving ill-posed linear problems with a self-adjoint operator 

      Matysik, O.V.; Zabreiko, P.P. (De Gruyter, 2015-06-06)
      The paper deals with iterative methods for solving linear operator equations x=Bx+f and Ax=f with self-adjoint operators in Hilbert space X in the critical case when ρ(B)=1 and 0∈SpA. The results obtained are based on a ...
      2020-09-18
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      Magnetic properties and electronic structure of Bi0.75Sm0.25FeO3 multiferroic 

      Ravinski, A. F.; Makoed, I. I.; Triguk, V. V.; Lazenka, V. V.; Galyas, A. I.; Demidenko, О. F.; Yanushkevich, K. I.; Moshchalkov, V. V. (Elsevier, 2018-03)
      Room temperature multiferroic Bi0.75Sm0.25FeO3 samples were synthesized using a solid-state reaction method under high-pressure conditions (∼4 GPA). The calculations of band structure, electronic and spin densities ...
      2020-09-18
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      Magnetocaloric Effect in BiFe1−xZnxO3 Multiferroics 

      Amirov, A. A.; Makoed, I. I.; Chaudhari, Y. A.; Bendre, S. T.; Yusupov, D. M.; Asvarov, A. Sh.; Liedienov, N. A.; Pashchenko, A. V. (Springer Verlag, 2018-02-10)
      Ceramic BiFe1−xZnxO3 multiferroic samples were prepared by the solid combustion method for x = 0.1, 0.15, and 0.2. Structural, magnetic, and magnetocaloric properties of the multiferroics have been studied. For all samples, ...
      2020-09-18
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      Magnetoelectric Properties of Zinc-Substituted BiFeO3 Multiferroics 

      Yusupov, D. M.; Amirov, A. A.; Makoed, I. I.; Chaudhary, Y. A.; Bendre, S. T. (компания "Плеадес Паблишинг, Лтд, 2020)
      The magnetoelectric properties of ceramic samples of BiFe1–xZnxO3 and Bi1–xZnxFe1–xZnxO3 multiferroics have been studied in magnetic fields from 0 to 80 kOe at room temperature. All the samples have the linear dependences ...
      2020-12-15
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      Middle Pleistocene deposits at Rechitsa, western Belarus, and their input to MIS 12-6 stratigraphy in central Europe 

      Leszek Marks; Barbara Woronko; Aleksandra Majecka; Tatyana Rylova; Anna Orłowska; Гречаник, Николай Федорович; Joanna Rychel; Łukasz Zbucki; Богдасаров, Максим Альбертович; Грядунова, Оксана Ивановна; Jerzy Nitychoruk; Łukasz Nowacki; Katarzyna Pochocka-Szwarc (2020)
      A correlation of stratigraphic subdivisions of the late Middle Pleistocene (MIS 12-6) in central Europe is extremely difficult, because of abundant hiatuses. Therefore, the site Rechitsa in western Belarus is extremely ...
      2020-12-14
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      Mineralogy of fossil resins in Northern Eurasia 

      Богдасаров, Максим Альбертович (2007)
      The investigation is focused on identification and origin of fossil resins from the Cretaceous, Tertiary, and Quaternary sediments of Northern Eurasia on the basis of detailed study of their physical and chemical ...
      2020-12-14
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      Minimally invasive thoracoscopic surgery with laparoscopic assistance approaches in diaphragmatic eventration management 

      Panko, Siarhei; Karpitski, Aliaksandr; Zhurbenko, Gennadij; Shestiuk, Andrej; Boufalik, Rostislav; Vakulich, Denis; Ignatjuk, Alaksandr (Termedia Publishing, 2017-03-31)
      Introduction: Thoracoscopic plication is an effective treatment for diaphragmatic eventration, but the procedure has some disadvantages such as inadvertent abdominal organ injuries or superficial sutures that are not strong ...
      2020-09-17
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      Morphological and functional responses of a metal-tolerant sunflower mutant line to a copper-contaminated soil series 

      Kolbas, Aliaksandr; Kolbas, Natallia; Marchand, Lilian; Herzig, Rolf; Mench, Michel (Springer (part of Springer Nature), 2018)
      The potential use of a metal-tolerant sunflower mutant line for biomonitoring Cu phytoavailability, Cu-induced soil phytotoxicity, and Cu phytoextraction was assessed on a Cu-contaminated soil series (13–1020 mg Cu kg−1) ...
      2020-09-16
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      New method of preoperative selection of patients with gastro-oesophageal reflux disease 

      Panko, Siarhei; Zhurbenka, Henadzi; Karpitski, Aliaksandr; Boufalik, Rostislav; Vakulich, Dzianis; Shestiuk, Andrei; Ihnatsiuk, Aliaksandr (Termedia Publishing, 2019-09-30)
      Introduction: The identification of sliding hiatal hernia (SHH) less than 3 cm in size using barium swallow fluoroscopy (BSF) and oesophagogastroduodenoscopy (OGD) was recently noted as a non-reliable method, allowing for ...
      2020-09-17
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      On a finite group having a normal series whose factors have bicyclic Sylow subgroups 

      Monakhov, Victor; Trofimuk, Alexander (Taylor & Francis Group, 2011)
      We consider the structure of a finite group having a normal series whose factors have bicyclic Sylow subgroups. In particular, we investigate groups of odd order and A4-free groups with this property. Exact estimations ...
      2020-11-10
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      On Boundary Value Problems for First-Order Elliptic Pseudosymmetric Systems in R^4 

      Басик, А. И.; Усс, А. Т.; Basik, A. I.; Uss, A. T. (Differential Equations, 2003)
      It is proved that there are no regularizing boundary-value problem for pseudo-symmetric elliptic systems of four equations of the first order in R^4.
      2020-11-10
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      On groups with biprimary subgroups of even order 

      Sokhor, Irina Leonidovna; Monakhov, Victor Stepanovich; Сохор, Ирина Леонидовна (2017)
      We investigate groups in which maximal subgroups of even order are primary or biprimary. We also research soluble groups with restriction on a number of prime devisors of some proper subgroup orders. We give applications ...
      2020-11-10
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      On groups with formational subnormal Sylow subgroups 

      Monakhov, Victor Stepanovich; Sokhor, Irina Leonidovna; Сохор, Ирина Леонидовна (De Gruyter, 2018)
      We investigate a finite group G with F-subnormal Sylow subgroups, where F is a subgroup-closed formation and A1A⊆F⊆NA. We prove that G is soluble and the derived subgroup of each metanilpotent subgroup is nilpotent. We ...
      2020-09-18
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      On the residual of a finite group with semi-subnormal subgroups 

      Trofimuk, Alexander (2020)
      A subgroup A of a group G is called seminormal in G, if there exists a subgroup B such that G = AB and AX is a subgroup of G for every subgroup X of B. We introduce the new concept that unites subnormality and seminormality. A ...
      2020-11-10
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      Oт maximal subgroup of a finite solvable subgroup 

      Грицук, Д.В.; Монахов, В.С. (EURASIAN MATHEMATICAL JOURNAL, 2012)
      Let H be a non-normal maximal subgroup of a finite solvable group G, and let q ∈ π(F (H/CoreGH)). It is proved that G has a Sylow q-subgroup Q such that NG(Q) ⊆ H.
      2020-11-12