K. Vengatajalabathy Gobi, Takeo Ohsaka,
... and copper(II) complexes of bis(pentaazamacrocyclic) ligand (bispen) are synthesized by the template condensation of bis( ... determined. Comparing the formal potentials (E0′) of [M2(bispen)]4+ [M=Cu(II), Ni(II)] and those ... atom in the macrocycle. The E0′ of [Ni2(bispen)]4+ was found to shift towards the less ...
Tópico(s): Molecular Junctions and Nanostructures
1998 - Elsevier BV | Electrochimica Acta
Aarón Maturana-Candelas, Carlos Gómez, Jesús Poza, Saúl J. Ruiz-Gómez, Roberto Hornero,
... matrices: bispectral relative power (BispRP), cubic bispectral entropy (BispEn), and bispectral median frequency (BispMF). BispRP results showed ... of the spectrum also experimented a decrease of BispEn with the disease progression, suggesting these bands interact ...
Tópico(s): Electrochemical Analysis and Applications
2020 - Frontiers Media | Frontiers in Computational Neuroscience
Václav Kučera, Mária Lukáčová-Medviďová, Sebastian Noelle, Jochen Schütz,
... in J Sci Comput 70:1390–1407, 2017; Bispen et al. in Commun Comput Phys 16:307– ...
Tópico(s): Numerical methods for differential equations
2021 - Springer Science+Business Media | Numerische Mathematik
Georgij Bispen, Mária Lukáčová-Medviďová, Leonid Yelash,
In this paper we will present and analyze a new class of the IMEX finite volume schemes for the Euler equations with a gravity source term. We will in particular concentrate on a singular limit of weakly compressible flows when the Mach number M≪1. In order to efficiently resolve slow dynamics we split the whole nonlinear system in a stiff linear part governing the acoustic and gravity waves and a non-stiff nonlinear part that models nonlinear advection effects. For time discretization we use a ...
Tópico(s): Gas Dynamics and Kinetic Theory
2017 - Elsevier BV | Journal of Computational Physics
Georgij Bispen, K. R. Arun, Mária Lukáčová-Medviďová, Sebastian Noelle,
Abstract We present new large time step methods for the shallow water flows in the low Froude number limit. In order to take into account multiscale phenomena that typically appear in geophysical flows nonlinear fluxes are split into a linear part governing the gravitational waves and the nonlinear advection. We propose to approximate fast linear waves implicitly in time and in space by means of a genuinely multidimensional evolution operator. On the other hand, we approximate nonlinear advection ...
Tópico(s): Numerical methods for differential equations
2014 - Cambridge University Press | Communications in Computational Physics
Sebastian Noelle, Georgij Bispen, K. R. Arun, Mária Lukáčová-Medviďová, C.‐D. Munz,
We propose a low Mach number, Godunov-type finite volume scheme for the numerical solution of the compressible Euler equations of gas dynamics. The scheme combines Klein's non-stiff/stiff decomposition of the fluxes [J. Comput. Phys., 121 (1995), pp. 213--237] with an explicit/implicit time discretization [F. Cordier, P. Degond, and A. Kumbaro, J. Comput. Phys., 231 (2012), pp. 5685--5704] for the split fluxes. This results in a scalar second order partial differential equation (PDE) for the pressure, ...
Tópico(s): Fluid Dynamics and Turbulent Flows
2014 - Society for Industrial and Applied Mathematics | SIAM Journal on Scientific Computing
D.D. Moldavsky, G. I. Kaurova, T. A. Bispen, G. G. Furin,
The reactions of hexafluoropropylene, its dimers and trimers, and perfluoro-1-ethylcyclo- hex-1-ene with secondary amines (dipropylamine, dibutylamine and diallylamine) have been shown to form enamines. The enamines were electrochemically fluorinated in anhydrous hydrogen fluoride. This paper reports the electrochemical fluorination data for the fluorination of tripropylamine, tributylamine, triamylamine and the partially fluorinated enamines. The structures of the products have been confirmed by ...
Tópico(s): Fluorine in Organic Chemistry
1993 - Elsevier BV | Journal of Fluorine Chemistry
Д. Д. Молдавский, T. A. Bispen, G. I. Kaurova, G. G. Furin,
Abstract Fluorination by elemental fluorine of fluorine-containing alkenes, alkanes, ethers and tertiary amines was investigated, aimed at obtaining the perfluorinated analogs. The factors affecting yield of the target compounds were studied. Elements of technology were elucidated.
Tópico(s): Fluorine in Organic Chemistry
1999 - Elsevier BV | Journal of Fluorine Chemistry
Tópico(s): Historical and Archaeological Studies
1996 - | Fortid og nutid
V. G. Barabanov, T. A. Bispen, V. V. Kornilov, Д. Д. Молдавский, A. S. Odinokov, I. M. Fenichev,
Tópico(s): Carbon Dioxide Capture Technologies
2014 - Pleiades Publishing | Russian Journal of Applied Chemistry
S. M. Nurgalieva, T. A. Bispen, A. N. Il’in, Д. Д. Молдавский, Elena A. Rozhkova,
Tópico(s): Chemical Reactions and Mechanisms
2007 - Pleiades Publishing | Russian Journal of Applied Chemistry
I. M. Fenichev, V. V. Berenblit, T. A. Bispen, N. V. Lebedev, Д. Д. Молдавский,
Tópico(s): Synthesis and Reactions of Organic Compounds
2013 - Pleiades Publishing | Russian Journal of Applied Chemistry
I. M. Fenichev, Yu. I. Babenko, T. A. Bispen, Д. Д. Молдавский,
Tópico(s): Material Properties and Applications
2013 - Pleiades Publishing | Russian Journal of Applied Chemistry
I. M. Fenichev, V. V. Berenblit, T. A. Bispen, N. V. Lebedev, Д. Д. Молдавский,
Tópico(s): Carbon dioxide utilization in catalysis
2013 - Pleiades Publishing | Russian Journal of Applied Chemistry
T. A. Bispen, G. V. BORUTSKAYA, T. V. Mikhailova, Д. Д. Молдавский, G. G. Furin,
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Tópico(s): Synthesis and Reactions of Organic Compounds
1996 - Wiley | ChemInform
D.D. Moldavsky, G. I. Kaurova, T. A. Bispen, G. G. Furin,
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Tópico(s): CO2 Reduction Techniques and Catalysts
1994 - Wiley | ChemInform
D.D. Moldavsky, G. I. Kaurova, T. A. Bispen, E.N. Burunawa, G. G. Furin, Vadim V. Bardin,
The paper reports syntheses of partially fluorinated trialkyl-amines and ethers by the reactions of perfluoroolefins (hexafluoropropylene, its dimer and trimer) and polyfluoroaromatic compounds (C6F6, C6F5CF3) with secondary amines (diallylamine, dibutylamine, dipropylamine, diethylamine) and polyfluorinated alcohols CF3CH2OH, C6F5CH2OH, H(CF2CF2)nCH2OH [n=1−4]) under the nucleophilic catalysis conditions by bases (CsF, Net3). Optimization of the process has been carried out. The effect of reaction conditions ( ...
Tópico(s): Per- and polyfluoroalkyl substances research
1991 - Elsevier BV | Journal of Fluorine Chemistry