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1.
N. B. Valetova L. L. Semenycheva I. S. Il’ichev A. N. Artemov D. F. Grishin 《Russian Journal of Applied Chemistry》2007,80(5):818-821
Features of radical polymerization of styrene in the presence of (diphenylbutadiene)tricarbonylchromium were studied. 相似文献
2.
3.
It has been shown that 1,3-thiazolidine-2,4-dione and 1,3-oxazolidine-2,4-dione react with hydrazine with a rearrangement of the ring to form a triazolinone ring. In each case, the reaction begins with the formation of an ionic adduct of hydrazine with the azolidinedione. On heating, the adduct undergoes decyclization (water catalyzes the process). The further course of the reaction is governed by the temperature and pH of the medium, which determine whether dehydration of the intermediate product with the formation of a triazolinone ring (in acid media) or rearrangement into a 1-acylsemicarbazide (at elevated temperatures) predominates. The influence of substituents in the thiazolidinone ring on the course of the reaction has been studied.For Communication I, see [1].Translated from Khimiya Geterotsiklicheskikh Soedinenii, Vol. 6, No. 7, pp. 991–996, July, 1970. 相似文献
4.
V. L. Ivanov V. A. Artemov L. A. Rodinovskaya A. M. Shestopalov V. N. Nesterov Yu. T. Struchkov V. P. Litvinov 《Chemistry of Heterocyclic Compounds》1996,32(1):105-111
Substituted pyrido,[3',2':4,5]thieno[3,2-b]pyndines were obtained by the reaction of 3-amino-2-benzoylthieno [2,3-b]pyridines with malononitrile and the reaction of 3-cyanopyridine-2(IH)-thiones with 2-aryl-3-bromo-I,I-dicyanopropene. 2-Amino-4-(4-bromophenyl)-7, 9-dimethyl-3-cyanopyrido [3',2':4,5]thieno[3, 2-b]-pyridine was used for the synthesis of a derivative of pyrido[3",2":4', 5']thieno[2',3':5,6]pyrido[2,3-d]-pyrimidine. The structure of these compounds was confirmed by spectral data and x-ray diffraction structural analysis.Deceased. 相似文献
5.
Doroshkevich S. Yu. Artemov K. P. Tereshchenko N. N. Zyubanova T. I. Vorobyov M. S. Akimova E. E. Minaeva O. M. Pokrovskaya E. A. Shin V. I. Torba M. S. Levanisov V. A. 《High Energy Chemistry》2021,55(4):329-335
High Energy Chemistry - The purpose of this work is to optimize the conditions of presowing treatment of spring wheat seeds with a low-energy pulsed electron beam. The absorbed dose in wheat has... 相似文献
6.
7.
A. N. Artemov 《Journal of Experimental and Theoretical Physics》1999,89(3):577-582
The effect of radiation defects on the thermodynamics of a system of Pearl vortices in a thin superconducting film is examined.
The scenario for a Kosterlitz-Thouless transition in this system is shown to depend on the defect concentration n
d
. At low concentrations, the transition takes place continuously, while at high concentrations, a range of temperatures exists
in which there are two metastable states. The concentrations of free vortices and of vortices captured by defects are calculated
as functions of temperature for different defect concentrations n
d
. A phase diagram is constructed for the vortex system in the n
d
−T plane.
Zh. éksp. Teor. Fiz. 116, 1081–1090 (September 1999) 相似文献
8.
The temperature dependence of the order parameters and the axial initial splitting parameter of Gd3+ impurity complexes is measured in the first low-symmetry phase of CsSrCl3, and the relationship between these parameters is found. The parameters of the thermodynamic potential, which takes into
account the interaction of the order parameter with strains, are estimated. The nature of the temperature dependence of the
axial initial splitting parameter in the cubic phase is explained.
Fiz. Tverd. Tela (St. Petersburg) 41, 2065–2069 (November 1999) 相似文献
9.
N. Burtebayev S. V. Artemov B. A. Duisebayev Zh. K. Kerimkulov S. B. Kuranov S. B. Sakuta 《Physics of Atomic Nuclei》2010,73(5):746-756
At an energy of 25 MeV and in the angular range 7°−175° in the laboratory frame, angular distributions were measured for elastic
deuteron scattering on 6Li nuclei and for the respective inelastic-scattering processes accompanied by the transitions to the ground state (1+) of
the 6Li nucleus and to its excited state at E
x
= 2.186 MeV (J
π = 3+). The resulting data were analyzed on the basis of the optical model of the nucleus and the coupled-reaction-channel method
with allowance for the mechanism of alpha-particle-cluster exchange. It is shown that only upon including, in the analysis,
channel coupling and the exchange mechanism can the experimental cross sections for elastic and inelastic scattering be reproduced
over the entire range of angles. 相似文献
10.
Logical theories for representing knowledge are often plagued by the so-called Logical Omniscience Problem. The problem stems from the clash between the desire to model rational agents, which should be capable of simple logical inferences, and the fact that any logical inference, however complex, almost inevitably consists of inference steps that are simple enough. This contradiction points to the fruitlessness of trying to solve the Logical Omniscience Problem qualitatively if the rationality of agents is to be maintained. We provide a quantitative solution to the problem compatible with the two important facets of the reasoning agent: rationality and resource boundedness. More precisely, we provide a test for the logical omniscience problem in a given formal theory of knowledge. The quantitative measures we use are inspired by the complexity theory. We illustrate our framework with a number of examples ranging from the traditional implicit representation of knowledge in modal logic to the language of justification logic, which is capable of spelling out the internal inference process. We use these examples to divide representations of knowledge into logically omniscient and not logically omniscient, thus trying to determine how much information about the reasoning process needs to be present in a theory to avoid logical omniscience. 相似文献