Zobrazeno 1 - 10
of 1 639
pro vyhledávání: '"V. Klochkov"'
Publikováno v:
Клинический разбор в общей медицине, Vol 5, Iss 6, Pp 63-68 (2024)
Background. Over the past decade, percutaneous nephrolithotripsy (PNL) has become one of the most popular treatments for urolithiasis. The reason is the high efficiency of the method in combination with a low incidence of complications and a shorter
Externí odkaz:
https://doaj.org/article/41fb3935151244fb9a4fd87cc6b96157
Autor:
Rumia Z. Kiseleva, Natalia A. Kirsanova, Anatoliy P. Nikolaev, Yuriy V. Klochkov, Vitaliy V. Ryabukha
Publikováno v:
Structural Mechanics of Engineering Constructions and Buildings, Vol 20, Iss 1, Pp 27-39 (2024)
For describing elastoplastic deformation, three versions of constitutive equations are used. The first version employs the governing equations of the flow theory. In the second version, elastic strain increments are defined the same way as in the flo
Externí odkaz:
https://doaj.org/article/0e2a59b47e5d4904b3db918b7433ddca
Autor:
Yu. V. Klochkov, A. P. Nikolaev, O. V. Vakhnina, T. A. Sobolevskaya, A. Sh. Dzhabrailov, M. Yu. Klochkov
Publikováno v:
Учёные записки Казанского университета. Серия Физико-математические науки, Vol 165, Iss 1, Pp 49-67 (2023)
This article describes an algorithm developed for the finite element analysis of the stressstrain state of a shell that takes the shape of a triaxial ellipsoid with varying parameterization of its mid-surface. A quadrangular fragment of the shell mid
Externí odkaz:
https://doaj.org/article/787aa7501eaf476c9d65d70ee004341d
Publikováno v:
Učënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki, Vol 165, Iss 1 (2023)
The structure and intramolecular mobility of some derivatives of bis(thio)phosphorylated amides in CCl4, CD2Cl2, and CD3CN solutions were examined by 1H and 31P NMR spectroscopy. A comparative analysis of the temperature-dependent 1H and 31P NMR spec
Externí odkaz:
https://doaj.org/article/4f3fadd42be84d12b7c85192d7b9df8f
Autor:
Ilfat Z. Rakhmatullin, Sergej V. Efimov, Ekaterina I. Kondratyeva, Lisset Miquel González, Kajum R. Safiullin, Mikhail A. Varfolomeev, Alexander V. Klochkov, Vladimir V. Klochkov
Publikováno v:
Petroleum Research, Vol 7, Iss 4, Pp 495-499 (2022)
Application of high resolution 13C nuclear magnetic resonance (NMR) spectroscopy to characterize Cuba oil and oil-containing rock samples from Cuban basin was demonstrated. The chemical shifts of 13C NMR functional groups for later determination the
Externí odkaz:
https://doaj.org/article/05416275f8fd43f1910b02beecf371dd
Autor:
Yuriy V. Klochkov, Valeria A. Pshenichkina, Anatoliy P. Nikolaev, Olga V. Vakhnina, Mikhail Yu. Klochkov
Publikováno v:
Structural Mechanics of Engineering Constructions and Buildings, Vol 19, Iss 1, Pp 64-72 (2023)
The purpose of study is to develop an algorithm for the analysis of thin shells of revolution based on the hybrid formulation of finite element method in two dimensions using a quadrilateral fragment of the middle surface as a discretization element.
Externí odkaz:
https://doaj.org/article/df4420db287a4512af654e48cf9b9833
Autor:
Ilfat Z. Rakhmatullin, Sergej V. Efimov, Alexander V. Klochkov, Oleg I. Gnezdilov, Mikhail A. Varfolomeev, Vladimir V. Klochkov
Publikováno v:
Petroleum Research, Vol 7, Iss 2, Pp 269-274 (2022)
Application of high resolution 13C nuclear magnetic resonance (NMR) spectroscopy to characterize crude oil was demonstrated. The chemical shifts of 13C NMR functional groups that determine the composition of the oil sample were determined. Molar frac
Externí odkaz:
https://doaj.org/article/61811526c38845bc89365f51a2c8b50a
Autor:
A. Acharya, H. Adhikary, A. Aduszkiewicz, K. K. Allison, E. V. Andronov, T. Antićić, V. Babkin, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, M. Deliyergiyev, M. Deveaux, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, S. R. Johnson, K. Kadija, N. Kargin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, V. I. Kolesnikov, D. Kolev, A. Korzenev, V. N. Kovalenko, S. Kowalski, M. Koziel, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T. V. Lazareva, M. Lewicki, K. Łojek, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, K. Marton, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. O. Merzlaya, B. Messerly, Ł. Mik, S. Morozov, S. Mrówczyński, Y. Nagai, M. Naskręt, V. Ozvenchuk, V. Paolone, O. Petukhov, R. Płaneta, P. Podlaski, B. A. Popov, B. Porfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, M. Ravonel, R. Renfordt, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, S. Sadhu, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, D. Uzhva, F. F. Valiev, D. Veberič, V. V. Vechernin, A. Wickremasinghe, Z. Włodarczyk, K. Wojcik, O. Wyszyński, E. D. Zimmerman, R. Zwaska
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 1, Pp 1-4 (2023)
Externí odkaz:
https://doaj.org/article/fb382c56009c46869d8a48b0a58cdbeb
Autor:
Natalia A. Gureeva, Rumia Z. Kiseleva, Anatoly P. Kiselev, Anatoly P. Nikolaev, Yuriy V. Klochkov
Publikováno v:
Structural Mechanics of Engineering Constructions and Buildings, Vol 18, Iss 3, Pp 228-241 (2022)
The usage of traditional approximating functions directly to the desired displacement vector of the internal point of a finite element to determine it through nodal unknowns in the form of displacement vectors and their derivatives is described. To a
Externí odkaz:
https://doaj.org/article/75264bf857aa46299566f12740a9f807
Autor:
Liliya E. Nikitina, Ilmir R. Gilfanov, Roman S. Pavelyev, Svetlana A. Lisovskaya, Elena Y. Trizna, Ilfat Z. Rakhmatullin, Vladimir V. Klochkov, Rustam R. Davletshin, Olga B. Babaeva, Alena I. Kolesnikova, Olga V. Ostolopovskaya, Larisa L. Frolova, Airat R. Kayumov
Publikováno v:
Molbank, Vol 2023, Iss 3, p M1704 (2023)
The syntheses of the title compounds were performed using lauric and myristic acids. The compounds obtained were characterized using 1H-, 13C-NMR and 2D 1H-1H COSY, 1H-13C HSQC NMR, IR, and high-resolution mass spectrometry. Both compounds exhibited
Externí odkaz:
https://doaj.org/article/a4fb85eff92d48de9516d1771a7d5e80