210 research outputs found
ΠΠ΅ΡΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ βΠΠ»ΡΠΌΠΈΠ½Π³ΡΠΎΠ½ΡΠΊΠΎΠΉ ΡΠΊΠΎΠ»Ρβ: ΠΈ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Ρ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΡΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎΠ³ΠΎ Π½Π΅ΠΎΠΈΠ½ΡΡΠΈΡΡΡΠΈΠΎΠ½Π°Π»ΠΈΠ·ΠΌΠ°
Π ΡΡΠ°ΡΡΠ΅ Π°Π½Π°Π»ΠΈΠ·ΠΈΡΡΡΡΡΡ ΠΈΠ½ΡΡΠΈΡΡΡΠΈΠΎΠ½Π°Π»ΡΠ½ΡΠ΅ ΠΏΡΠΎΡΠ΅ΡΡΡ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π½Π°ΡΡΠ½ΠΎΠΉ ΠΠ»ΡΠΌΠΈΠ½Π³ΡΠΎΠ½ΡΠΊΠΎΠΉ ΡΠΊΠΎΠ»Ρ Π·Π° ΠΏΠΎΡΠ»Π΅Π΄Π½ΡΡ ΡΠ΅ΡΠ²Π΅ΡΡΡ Π²Π΅ΠΊΠ°, ΠΊΠΎΡΠΎΡΠ°Ρ ΡΠ΅ΡΠ½ΠΎ ΡΠ²ΡΠ·Π°Π½Π° Ρ ΠΊΠΎΠ½ΡΠ΅ΠΏΡΡΠ°Π»ΡΠ½ΡΠΌ ΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠΌ Π½Π°ΡΠ»Π΅Π΄ΠΈΠ΅ΠΌ ΠΠ»ΠΈΠ½ΠΎΡ ΠΡΡΡΠΎΠΌ, Π° ΡΠ°ΠΊΠΆΠ΅ ΡΠ°Π±ΠΎΡΠ°ΠΌΠΈ Π΅Π΅ ΠΊΠΎΠ»Π»Π΅Π³ ΠΈ ΡΡΠ΅Π½ΠΈΠΊΠΎΠ². ΠΠ²ΡΠΎΡ ΠΏΠΎΠ΄ΡΠ΅ΡΠΊΠΈΠ²Π°Π΅Ρ Π·Π½Π°ΡΠΈΠΌΠΎΡΡΡ Π½Π΅ΠΎΠΈΠ½ΡΡΠΈΡΡΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠΉ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΠΈ Π² ΡΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎΠΉ ΡΠΎΡΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΡΡΠ»ΠΈ, Π² ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡΡ
ΡΠΎΡΠΈΠ°Π»ΡΠ½ΡΡ
Π΄ΠΈΠ»Π΅ΠΌΠΌ, ΠΎΠ±ΡΠΈΡ
ΡΠ΅ΡΡΡΡΠΎΠ², ΠΊΠΎΠ»Π»Π΅ΠΊΡΠΈΠ²Π½ΡΡ
Π΄Π΅ΠΉΡΡΠ²ΠΈΠΉ ΠΈ ΠΈΠ΄Π΅Π½ΡΠΈΡΠ½ΠΎΡΡΠΈ. ΠΠΎ ΠΌΠ½Π΅Π½ΠΈΡ Π°Π²ΡΠΎΡΠ°, ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΠ»ΡΠΌΠΈΠ½Π³ΡΠΎΠ½ΡΠΊΠΎΠΉ ΡΠΊΠΎΠ»Ρ ΠΏΠΎΠΏΡΡΠ°Π»ΠΈΡΡ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠΈΡΡ ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ ΠΏΡΠΎΠ±Π»Π΅ΠΌΡ ΡΠΎΡΠΈΠ°Π»ΡΠ½ΠΎ-ΡΠΊΠΎΠ½ΠΎΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΡΡΠ°Π΄ΠΈΡΠΈΠΎΠ½Π½ΡΡ
ΡΠΎΠΎΠ±ΡΠ΅ΡΡΠ² Π² ΡΡΠ°Π±ΠΈΠ»ΡΠ½ΠΎΡΡΠΈ Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΡΠΎΡΠΈΠ΅ΡΠ°Π»ΡΠ½ΠΎΠΉ Π½Π΅ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Π½ΠΎΡΡΠΈ, ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΡ Π½Π΅ΠΎΠΈΠ½ΡΡΠΈΡΡΡΠΈΠΎΠ½Π°Π»ΡΠ½ΡΡ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΡ. ΠΠ°Π»ΡΠ½Π΅ΠΉΡΠ΅Π΅ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΡΠ°Π·Π²ΠΈΡΠΈΠ΅ ΠΠ»ΡΠΌΠΈΠ½Π³ΡΠΎΠ½ΡΠΊΠΎΠΉ ΡΠΊΠΎΠ»Ρ Π°Π²ΡΠΎΡ ΡΠ²ΡΠ·ΡΠ²Π°Π΅Ρ Ρ ΠΊΠΎΠ½ΠΊΡΠ΅ΡΠΈΠ·Π°ΡΠΈΠ΅ΠΉ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠΉ ΡΠΎΡΠΈΠ°Π»ΡΠ½ΡΡ
Π΄ΠΈΠ»Π΅ΠΌΠΌ ΠΈ ΠΎΠ±ΡΠΈΡ
ΡΠ΅ΡΡΡΡΠΎΠ², ΠΈΠ·ΡΡΠ΅Π½ΠΈΠ΅ΠΌ ΠΏΡΠΎΠ±Π»Π΅ΠΌ ΠΊΠ°ΠΊ ΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΠΈ, ΡΠ°ΠΊ ΠΈ ΡΠ°ΡΠΏΠ°Π΄Π° ΠΈΠ½ΡΡΠΈΡΡΡΠΎΠ², ΠΈ ΠΈΡ
ΡΡΠ°Π½ΡΡΠΎΡΠΌΠ°ΡΠΈΠΈ ΠΈΠ· Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠΈΡ Ρ ΠΏΠΎΠ·ΠΈΡΠΈΠ²Π½ΡΠΌΠΈ Π³Π½Π΅Π·Π΄ΠΎΠ²ΡΠΌΠΈ ΡΠΊΡΡΠ΅ΡΠ½Π°Π»ΠΈΡΠΌΠΈ Π² Π΄Π΅Π²ΠΈΠ°Π½ΡΠ½ΠΎΠ΅ Π½Π΅ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠΈΠ΅.
In the article the institutional processes of Bloomington school formation are analyzed. Such processes are closely connected to the conceptual and methodological heritage of Elinor Ostrom and her colleagues and students. The author underlies importance of neo-institutional methodology in the contemporary sociological thought, in studies of social dilemmas, common-pool resources, collective actions and identity. In authorβs opinion, by using neo-institutional methodology, studies of the Bloomington school have tried to find a solution of the problem of stable social-economic development of traditional societies. In authorβs opinion, the further development of the Bloomington school is connected with further defining social dilemmas and common-pool resources, studies of institutional stability and institutional disintegration and transformations of institutions from dynamic equilibrium with positive nested externalities to dynamic non-equilibrium
Lyapunov-like Conditions of Forward Invariance and Boundedness for a Class of Unstable Systems
We provide Lyapunov-like characterizations of boundedness and convergence of
non-trivial solutions for a class of systems with unstable invariant sets.
Examples of systems to which the results may apply include interconnections of
stable subsystems with one-dimensional unstable dynamics or critically stable
dynamics. Systems of this type arise in problems of nonlinear output
regulation, parameter estimation and adaptive control.
In addition to providing boundedness and convergence criteria the results
allow to derive domains of initial conditions corresponding to solutions
leaving a given neighborhood of the origin at least once. In contrast to other
works addressing convergence issues in unstable systems, our results require
neither input-output characterizations for the stable part nor estimates of
convergence rates. The results are illustrated with examples, including the
analysis of phase synchronization of neural oscillators with heterogenous
coupling
ΠΠ΅ΡΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ βΠΠ»ΡΠΌΠΈΠ½Π³ΡΠΎΠ½ΡΠΊΠΎΠΉ ΡΠΊΠΎΠ»Ρβ: ΠΈ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Ρ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΡΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎΠ³ΠΎ Π½Π΅ΠΎΠΈΠ½ΡΡΠΈΡΡΡΠΈΠΎΠ½Π°Π»ΠΈΠ·ΠΌΠ°
Π ΡΡΠ°ΡΡΠ΅ Π°Π½Π°Π»ΠΈΠ·ΠΈΡΡΡΡΡΡ ΠΈΠ½ΡΡΠΈΡΡΡΠΈΠΎΠ½Π°Π»ΡΠ½ΡΠ΅ ΠΏΡΠΎΡΠ΅ΡΡΡ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π½Π°ΡΡΠ½ΠΎΠΉ ΠΠ»ΡΠΌΠΈΠ½Π³ΡΠΎΠ½ΡΠΊΠΎΠΉ ΡΠΊΠΎΠ»Ρ Π·Π° ΠΏΠΎΡΠ»Π΅Π΄Π½ΡΡ ΡΠ΅ΡΠ²Π΅ΡΡΡ Π²Π΅ΠΊΠ°, ΠΊΠΎΡΠΎΡΠ°Ρ ΡΠ΅ΡΠ½ΠΎ ΡΠ²ΡΠ·Π°Π½Π° Ρ ΠΊΠΎΠ½ΡΠ΅ΠΏΡΡΠ°Π»ΡΠ½ΡΠΌ ΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠΌ Π½Π°ΡΠ»Π΅Π΄ΠΈΠ΅ΠΌ ΠΠ»ΠΈΠ½ΠΎΡ ΠΡΡΡΠΎΠΌ, Π° ΡΠ°ΠΊΠΆΠ΅ ΡΠ°Π±ΠΎΡΠ°ΠΌΠΈ Π΅Π΅ ΠΊΠΎΠ»Π»Π΅Π³ ΠΈ ΡΡΠ΅Π½ΠΈΠΊΠΎΠ². ΠΠ²ΡΠΎΡ ΠΏΠΎΠ΄ΡΠ΅ΡΠΊΠΈΠ²Π°Π΅Ρ Π·Π½Π°ΡΠΈΠΌΠΎΡΡΡ Π½Π΅ΠΎΠΈΠ½ΡΡΠΈΡΡΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠΉ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΠΈ Π² ΡΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎΠΉ ΡΠΎΡΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΡΡΠ»ΠΈ, Π² ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡΡ
ΡΠΎΡΠΈΠ°Π»ΡΠ½ΡΡ
Π΄ΠΈΠ»Π΅ΠΌΠΌ, ΠΎΠ±ΡΠΈΡ
ΡΠ΅ΡΡΡΡΠΎΠ², ΠΊΠΎΠ»Π»Π΅ΠΊΡΠΈΠ²Π½ΡΡ
Π΄Π΅ΠΉΡΡΠ²ΠΈΠΉ ΠΈ ΠΈΠ΄Π΅Π½ΡΠΈΡΠ½ΠΎΡΡΠΈ. ΠΠΎ ΠΌΠ½Π΅Π½ΠΈΡ Π°Π²ΡΠΎΡΠ°, ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΠ»ΡΠΌΠΈΠ½Π³ΡΠΎΠ½ΡΠΊΠΎΠΉ ΡΠΊΠΎΠ»Ρ ΠΏΠΎΠΏΡΡΠ°Π»ΠΈΡΡ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠΈΡΡ ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ ΠΏΡΠΎΠ±Π»Π΅ΠΌΡ ΡΠΎΡΠΈΠ°Π»ΡΠ½ΠΎ-ΡΠΊΠΎΠ½ΠΎΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΡΡΠ°Π΄ΠΈΡΠΈΠΎΠ½Π½ΡΡ
ΡΠΎΠΎΠ±ΡΠ΅ΡΡΠ² Π² ΡΡΠ°Π±ΠΈΠ»ΡΠ½ΠΎΡΡΠΈ Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΡΠΎΡΠΈΠ΅ΡΠ°Π»ΡΠ½ΠΎΠΉ Π½Π΅ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Π½ΠΎΡΡΠΈ, ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΡ Π½Π΅ΠΎΠΈΠ½ΡΡΠΈΡΡΡΠΈΠΎΠ½Π°Π»ΡΠ½ΡΡ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΡ. ΠΠ°Π»ΡΠ½Π΅ΠΉΡΠ΅Π΅ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΡΠ°Π·Π²ΠΈΡΠΈΠ΅ ΠΠ»ΡΠΌΠΈΠ½Π³ΡΠΎΠ½ΡΠΊΠΎΠΉ ΡΠΊΠΎΠ»Ρ Π°Π²ΡΠΎΡ ΡΠ²ΡΠ·ΡΠ²Π°Π΅Ρ Ρ ΠΊΠΎΠ½ΠΊΡΠ΅ΡΠΈΠ·Π°ΡΠΈΠ΅ΠΉ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠΉ ΡΠΎΡΠΈΠ°Π»ΡΠ½ΡΡ
Π΄ΠΈΠ»Π΅ΠΌΠΌ ΠΈ ΠΎΠ±ΡΠΈΡ
ΡΠ΅ΡΡΡΡΠΎΠ², ΠΈΠ·ΡΡΠ΅Π½ΠΈΠ΅ΠΌ ΠΏΡΠΎΠ±Π»Π΅ΠΌ ΠΊΠ°ΠΊ ΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΠΈ, ΡΠ°ΠΊ ΠΈ ΡΠ°ΡΠΏΠ°Π΄Π° ΠΈΠ½ΡΡΠΈΡΡΡΠΎΠ², ΠΈ ΠΈΡ
ΡΡΠ°Π½ΡΡΠΎΡΠΌΠ°ΡΠΈΠΈ ΠΈΠ· Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠΈΡ Ρ ΠΏΠΎΠ·ΠΈΡΠΈΠ²Π½ΡΠΌΠΈ Π³Π½Π΅Π·Π΄ΠΎΠ²ΡΠΌΠΈ ΡΠΊΡΡΠ΅ΡΠ½Π°Π»ΠΈΡΠΌΠΈ Π² Π΄Π΅Π²ΠΈΠ°Π½ΡΠ½ΠΎΠ΅ Π½Π΅ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠΈΠ΅.
In the article the institutional processes of Bloomington school formation are analyzed. Such processes are closely connected to the conceptual and methodological heritage of Elinor Ostrom and her colleagues and students. The author underlies importance of neo-institutional methodology in the contemporary sociological thought, in studies of social dilemmas, common-pool resources, collective actions and identity. In authorβs opinion, by using neo-institutional methodology, studies of the Bloomington school have tried to find a solution of the problem of stable social-economic development of traditional societies. In authorβs opinion, the further development of the Bloomington school is connected with further defining social dilemmas and common-pool resources, studies of institutional stability and institutional disintegration and transformations of institutions from dynamic equilibrium with positive nested externalities to dynamic non-equilibrium
Production, Physicochemical and Catalytic Properties of Gallium-Containing Zeolite Catalysts
Crystalline galloalumino- and gallosilicates with pentasil structure were synthesised under hydrother-mal conditions. The influence of gallium concentration and binder amount both on physicochemical and catalytic properties of a zeolite in the process of C2-C4 light alkanes aromatization and on catalyst deacti-vation due to carbidization has been studied. Acidic properties of gallium-containing pentasils with differ-ent composition were studied using the method of thermoprogrammed ammonia desorption. The forma-tion of strong aproton acidic sites whose composition includes gallium ions was found. It has been shown that isomorphic aluminium replacement by gallium in the pentasil lattice leads to a significant increase in aromatizing activity and period of stable catalyst operation. A decrease in intensity of coking and the formation of less condensed coke deposits with a wide distribution by the structure are observed with the increase in gallium concentration. The introduction of a binder to galloaluminosilicate results in a signifi-cant increase in mechanical strength of a catalyst. It was established that the most efficient catalyst of the above process is a zeolite containing 2.2% of gallium oxide and 1.3% of aluminium oxide and mixed with 20% of the pseudobeumite. The selectivity of the formation of aromatic hydrocarbons reaches 55-60%, the period of stable operation exceeds 350 h. In accordance with the data obtained suggested are the principles of the selection of efficient catalysts of light alkanes aromatization and optimum conditions of the process
On the birth of limit cycles for non-smooth dynamical systems
The main objective of this work is to develop, via Brower degree theory and
regularization theory, a variation of the classical averaging method for
detecting limit cycles of certain piecewise continuous dynamical systems. In
fact, overall results are presented to ensure the existence of limit cycles of
such systems. These results may represent new insights in averaging, in
particular its relation with non smooth dynamical systems theory. An
application is presented in careful detail
Acidic and Catalytic Properties of Mo-Containing Zeolite Catalysts for Non-Oxidative Methane Conversion
The conversion of methane into benzene, toluene and naphthalene at the reaction temperature of 750 ΠΒ°C and gas hourly space velocity (GHSV) of 500-1500 h-1 over zeolites modified via impregnation with ammonium heptamolybdate and mechanical mixing with Mo oxide and nanopowder is studied under non-oxidative conditions. It has been established that the highest methane conversion per one run and maximal yield of aromatic hydrocarbons are reached for the sample containing 4.0 mass.% the Mo nanopowder. The stability of Mo-containing zeolite catalysts in the process of methane dehydroaromatization at different GHSV has been studied and a characteristic presence of the induction period caused by the formation of active Mo forms both on the external surface and into the zeolite channels has been established. Both the duration of induction period and stable catalyst operation are decreasing with increasing of GHSV. It was demonstrated that acidic properties of a Mo-containing zeolite catalyst depend on the Mo concentration and method of its introduction
ΠΠ»ΠΈΡΠ½ΠΈΠ΅ ΡΠ΅Π»ΠΎΡΠ½ΠΎΠΉ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ Π½Π° ΡΠΈΠ·ΠΈΠΊΠΎ-Ρ ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈ ΠΊΠ°ΡΠ°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π° ΡΠ΅ΠΎΠ»ΠΈΡΠ° ΡΠΈΠΏΠ° ZSMβ5 Π² ΠΏΡΠΎΡΠ΅ΡΡΠ΅ ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΡ ΠΏΡΡΠΌΠΎΠ³ΠΎΠ½Π½ΠΎΠΉ Π±Π΅Π½Π·ΠΈΠ½ΠΎΠ²ΠΎΠΉ ΡΡΠ°ΠΊΡΠΈΠΈ Π½Π΅ΡΡΠΈ
Postsynthetic treatment of a ZSMβ5 type zeolite with aqueous solutions of NaOH of various concentrations is carried out. Structural, acidic, and catalytic properties of the initial zeolite and treated samples are investigated in the course of conversion of straight-run gasoline fraction of oil. The main operational characteristics of the obtained high-octane gasolines are determined. The dynamics of deactivation of the initial ZSMβ5 zeolite and the sample subjected to alkaline treatment is reported and the structure of coke deposits is studied. It is found out that alkaline treatment of zeolites leads to a decrease in their crystallinity, specific surface area and specific mesopore volume, while the average pore diameter increases. Also a decrease in the concentration of acid sites with an increase in their strength is observed. As a result of changes in the properties of zeolites, the performance and stability of the catalysts obtained on their basis increase, which contributes to the improvement of the quality of gasoline formed over these catalysts during the conversion of straight-run gasoline fraction of oilΠΡΠΎΠ²Π΅Π΄Π΅Π½Π° ΠΏΠΎΡΡΡΠΈΠ½ΡΠ΅ΡΠΈΡΠ΅ΡΠΊΠ°Ρ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠ° ΡΠ΅ΠΎΠ»ΠΈΡΠ° ΡΠΈΠΏΠ° ZSMβ5 Π²ΠΎΠ΄Π½ΡΠΌΠΈ ΡΠ°ΡΡΠ²ΠΎΡΠ°ΠΌΠΈ
NaOH ΡΠ°Π·Π»ΠΈΡΠ½ΠΎΠΉ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΈ. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ ΡΡΡΡΠΊΡΡΡΠ½ΡΠ΅, ΠΊΠΈΡΠ»ΠΎΡΠ½ΡΠ΅ ΠΈ ΠΊΠ°ΡΠ°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠ΅
ΡΠ²ΠΎΠΉΡΡΠ²Π°
ΠΈΡΡ
ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΡΠ΅ΠΎΠ»ΠΈΡΠ° ΠΈ ΠΎΠ±ΡΠ°Π±ΠΎΡΠ°Π½Π½ΡΡ
ΠΎΠ±ΡΠ°Π·ΡΠΎΠ² Π² ΠΏΡΠΎΡΠ΅ΡΡΠ΅ ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΡ ΠΏΡΡΠΌΠΎΠ³ΠΎΠ½Π½ΠΎΠΉ
Π±Π΅Π½Π·ΠΈΠ½ΠΎΠ²ΠΎΠΉ ΡΡΠ°ΠΊΡΠΈΠΈ Π½Π΅ΡΡΠΈ. ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ ΠΎΡΠ½ΠΎΠ²Π½ΡΠ΅ ΡΠΊΡΠΏΠ»ΡΠ°ΡΠ°ΡΠΈΠΎΠ½Π½ΡΠ΅ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
Π²ΡΡΠΎΠΊΠΎΠΎΠΊΡΠ°Π½ΠΎΠ²ΡΡ
Π±Π΅Π½Π·ΠΈΠ½ΠΎΠ². ΠΡΠΈΠ²Π΅Π΄Π΅Π½Π° Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ° Π΄Π΅Π·Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ ΠΈΡΡ
ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΡΠ΅ΠΎΠ»ΠΈΡΠ° ZSMβ5
ΠΈ ΠΎΠ±ΡΠ°Π·ΡΠ°, ΠΏΠΎΠ΄Π²Π΅ΡΠ³Π½ΡΡΠΎΠ³ΠΎ ΡΠ΅Π»ΠΎΡΠ½ΠΎΠΉ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠ΅, ΠΈΠ·ΡΡΠ΅Π½Π° ΡΡΡΡΠΊΡΡΡΠ° ΠΊΠΎΠΊΡΠΎΠ²ΡΡ
ΠΎΡΠ»ΠΎΠΆΠ΅Π½ΠΈΠΉ.
Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΡΠ΅Π»ΠΎΡΠ½Π°Ρ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠ° ΡΠ΅ΠΎΠ»ΠΈΡΠΎΠ² ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΡ ΠΈΡ
ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ½ΠΎΡΡΠΈ,
Π²Π΅Π»ΠΈΡΠΈΠ½Ρ ΡΠ΄Π΅Π»ΡΠ½ΠΎΠΉ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ ΠΈ ΡΠ΄Π΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΎΠ±ΡΡΠΌΠ° ΠΌΠ΅Π·ΠΎΠΏΠΎΡ, ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΡ ΡΡΠ΅Π΄Π½Π΅Π³ΠΎ Π΄ΠΈΠ°ΠΌΠ΅ΡΡΠ°
ΠΏΠΎΡ, ΡΠΌΠ΅Π½ΡΡΠ΅Π½ΠΈΡ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΈ ΠΊΠΈΡΠ»ΠΎΡΠ½ΡΡ
ΡΠ΅Π½ΡΡΠΎΠ² ΠΈ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΡ ΠΈΡ
ΡΠΈΠ»Ρ. Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅
ΠΏΡΠΎΠΈΡΡ
ΠΎΠ΄ΡΡΠΈΡ
ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΉ ΡΠ²ΠΎΠΉΡΡΠ²
ΡΠ΅ΠΎΠ»ΠΈΡΠΎΠ² ΠΏΠΎΠ²ΡΡΠ°Π΅ΡΡΡ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡ ΠΈ ΡΡΠ°Π±ΠΈΠ»ΡΠ½ΠΎΡΡΡ
ΡΠ°Π±ΠΎΡΡ ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°ΡΠΎΡΠΎΠ², ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
Π½Π° ΠΈΡ
ΠΎΡΠ½ΠΎΠ²Π΅, Π° ΡΠ°ΠΊΠΆΠ΅ ΡΠ»ΡΡΡΠ°Π΅ΡΡΡ ΠΊΠ°ΡΠ΅ΡΡΠ²ΠΎ Π±Π΅Π½Π·ΠΈΠ½ΠΎΠ²,
ΠΎΠ±ΡΠ°Π·ΡΡΡΠΈΡ
ΡΡ Π½Π° Π½ΠΈΡ
Π² ΠΏΡΠΎΡΠ΅ΡΡΠ΅ ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΡ ΠΏΡΡΠΌΠΎΠ³ΠΎΠ½Π½ΠΎΠΉ Π±Π΅Π½Π·ΠΈΠ½ΠΎΠ²ΠΎΠΉ ΡΡΠ°ΠΊΡΠΈΠΈ Π½Π΅ΡΡ
Study of the Impact of Post-Synthetic Treatment on the Physicochemical and Catalytic Properties of Zeolite in the Propane-to-Olefin Transformation Process
ΠΡΠΎΠ²Π΅Π΄Π΅Π½ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²Π»ΠΈΡΠ½ΠΈΡ ΠΊΠΈΡΠ»ΠΎΡΠ½ΠΎΠΉ ΠΈ ΡΠ΅ΡΠΌΠΎΠΏΠ°ΡΠΎΠ²ΠΎΠΉ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΎΠΊ ΡΠ΅ΠΎΠ»ΠΈΡΠ° ΡΠΈΠΏΠ° ZSMβ5 Π½Π° Π΅Π³ΠΎ ΡΡΡΡΠΊΡΡΡΠ½ΡΠ΅, ΠΊΠΈΡΠ»ΠΎΡΠ½ΡΠ΅ ΠΈ ΠΊΠ°ΡΠ°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π° Π² ΠΏΡΠΎΡΠ΅ΡΡΠ΅ ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΡ ΠΏΡΠΎΠΏΠ°Π½Π° Π² ΠΎΠ»Π΅ΡΠΈΠ½ΠΎΠ²ΡΠ΅ ΡΠ³Π»Π΅Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Ρ. ΠΠ° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
Π΄Π°Π½Π½ΡΡ
ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΠΊΠΈΡΠ»ΠΎΡΠ½Π°Ρ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠ° ΡΠ΅ΠΎΠ»ΠΈΡΠ° ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΡ Π΅Π³ΠΎ Π΄Π΅Π³ΠΈΠ΄ΡΠΈΡΡΡΡΠ΅ΠΉ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΠΈ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΡΠ½ΠΈΠ·ΠΈΡΡ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ ΠΏΡΠΎΡΠ΅ΡΡΠ°. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ ΠΏΡΠ΅Π΄Π²Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΡΠ΅ΡΠΌΠΎΠΏΠ°ΡΠΎΠ²ΠΎΠΉ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ ΡΠ΅ΠΎΠ»ΠΈΡΠ½ΠΎΠ³ΠΎ ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°ΡΠΎΡΠ° ΠΎΠΊΠ°Π·ΡΠ²Π°Π΅Ρ Π²Π»ΠΈΡΠ½ΠΈΠ΅ Π½Π° Π΅Π³ΠΎ ΡΡΡΡΠΊΡΡΡΠ½ΡΠ΅ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΠΈ ΡΠ°ΡΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΠΊΠΈΡΠ»ΠΎΡΠ½ΡΡ
ΡΠ΅Π½ΡΡΠΎΠ², ΠΏΡΠΈΠ²ΠΎΠ΄Ρ ΠΊ ΡΠΌΠ΅Π½ΡΡΠ΅Π½ΠΈΡ ΡΠΈΠ»Ρ ΠΈ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΈ ΡΠΈΠ»ΡΠ½ΡΡ
ΠΊΠΈΡΠ»ΠΎΡΠ½ΡΡ
ΡΠ΅Π½ΡΡΠΎΠ², ΡΡΠΎ ΡΠΏΠΎΡΠΎΠ±ΡΡΠ²ΡΠ΅Ρ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΡ ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ ΠΎΠ»Π΅ΡΠΈΠ½ΠΎΠ²ΡΡ
ΡΠ³Π»Π΅Π²ΠΎΠ΄ΠΎΡΠΎΠ΄ΠΎΠ² ΠΈΠ· ΠΏΡΠΎΠΏΠ°Π½Π°A study was carried out of the influence of acid and thermosteam treatments of ZSMβ5 type zeolite on its structural, acid and catalytic properties in the process of converting propane into olefin hydrocarbons. Based on the data obtained, it was established that acid treatment of zeolite leads to an increase in its dehydrogenation activity and allows the temperature of the process to be reduced. It has been shown that preliminary thermosteam treatment of a zeolite catalyst affects its structural characteristics and the distribution of acid sites, leading to a decrease in the strength and concentration of strong acid sites, which helps to increase the selectivity of the formation of olefin hydrocarbons from propan
FEEDBACK DESIGN OF DIFFERENTIAL EQUATIONS OF RECONSTRUCTION FOR SECOND-ORDER DISTRIBUTED PARAMETER SYSTEMS
The paper aims at studying a class of second-order partial differential equations subject to uncertainty involving unknown inputs for which no probabilistic information is available. Developing an approach of feedback control with a model, we derive an efficient reconstruction procedure and thereby design differential equations of reconstruction. A characteristic feature of the obtained equations is that their inputs formed by the feedback control principle constructively approximate unknown inputs of the given second-order distributed parameter system
- β¦