7 research outputs found
ΠΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΠΌΡΠΆΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΠΈΡ Π²Π·Π°ΡΠΌΠΎΠ΄ΡΠΉ ΡΠ° ΡΡΡΡΠΊΡΡΡΠΈ Π² Π΅ΠΏΠΎΠΊΡΠΈΠ°ΠΌΡΠ½Π½ΠΈΡ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ°Ρ Π· Π΄ΠΈΡΠΏΠ΅ΡΡΠ½ΠΈΠΌΠΈ ΠΎΠΊΡΠΈΠ΄Π°ΠΌΠΈ
With the help of the software package HyprChem, using a method of quantum-chemical modeling, research into intermolecular interactions between epoxyamine grid and oxides of different chemical nature Al2O3, Fe2O3, TiO2, Π‘Π°Π was carried out. To take into account hydroxyl-hydrate surface layer of oxides, molecular complexes of the fragment of epoxyamine grid and hydroxides of metals Al(OH)3, Fe(OH)3, Ti(OH)4, Ca(OH)2 were used as models. As a result of modeling, it was established that Ca(OH)2 molecule forms strong intermolecular bonds and has the greatest influence on the spatial conformation of the epoxyamine fragment. It was shown that a calcium atom is oriented to Ο-electron cloud of the benzene ring with formation of donor-acceptor bond, and OH-groups form hydrogen bonds with OH-groups of the residue of a molecule of epoxy oligomer in the grid. The studied intermolecular interactions of epoxyamine grid and hydroxides of amphoteric metals Al(OH)3, Fe(OH)3, Ti(OH)4 indicate the formation of low-energy inductive and dipole-dipole (orientation) bonds. It was established that existence of amphoteric hydroxides does not cause a change of the spatial conformation of the gridβs fragment. It was shown that the ability of hydroxides of metals to affect the spatial conformation of a fragment of the epoxyamine grid increases in the series: Ti(OH)3<Al(OH)3<Fe(OH)3<Ca(OH)2. The resulting series coincides with the series, in which basic properties of active Branstad centers (OH-groups) with the central elements Ti4+<Al3+<Fe3+<Ca2+ increase (acidic properties decrease). The influence of the oxide filler on the structure and spatial conformation of epoxyamine grid increases with an increase of basicity (alkalinity) of an oxide. Resistance of composites to aqueous aggressive media depends on the surface acidic-basic properties, dispersion and package density of fillersβ particles in the polymer matrix. When adding strongly basic calcite oxide (CL), chemical resistance of composites decreases by 5 times. In this case, composites with non-homogeneous structure and non-uniform distribution of compacted areas are formed. It was found that when adding amphoteric rutile oxides (RT), alumina (AL) and hematite (HM), the main factors that affect chemical resistance of filled composites include dispersion and package density of fillersβ particles. The calculated parameter a of composites, which describes package density of the filler in the polymer matrix, increases in the series of fillers HM<RT<AL. This series coincides with the series, in which resistance of filled composites in all aggressive media decreases. At an increase in package density of a filler, probability of pegridration of aggressive medium into the material decreases, which is associated with extension of the diffusion path.ΠΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΊΠ²Π°Π½ΡΠΎΠ²ΠΎ-Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΌΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ ΠΌΠ΅ΠΆΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΡΠ΅ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ Π² ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ°Ρ
Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΡΠΏΠΎΠΊΡΠΈΠ°ΠΌΠΈΠ½Π½ΠΎΠ³ΠΎ ΡΠ΅ΡΡΠ°ΡΠΎΠ³ΠΎ ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ° ΠΈ Π΄ΠΈΡΠΏΠ΅ΡΡΠ½ΡΡ
ΠΎΠΊΡΠΈΠ΄ΠΎΠ² ΡΠ°Π·Π½ΠΎΠΉ Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΏΡΠΈΡΠΎΠ΄Ρ Al2O3, Fe2O3, TiO2, Π‘Π°Π. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Ρ Π·Π°ΠΊΠΎΠ½ΠΎΠΌΠ΅ΡΠ½ΠΎΡΡΠΈ Π²Π»ΠΈΡΠ½ΠΈΡ ΠΊΠΈΡΠ»ΠΎΡΠ½ΠΎ-ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ Π½Π°ΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»Π΅ΠΉ Π½Π° ΠΌΠ΅ΠΆΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΡΠ΅ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ ΠΈ ΠΏΡΠΎΡΡΡΠ°Π½ΡΡΠ²Π΅Π½Π½ΡΡ ΠΊΠΎΠ½ΡΠΎΡΠΌΠ°ΡΠΈΡ ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠΎΠ². ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΡΡΡΡΠΊΡΡΡΠ½ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΠΈ ΡΠ²ΠΎΠΉΡΡΠ² ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΎΠ² ΠΎΡ Π΄ΠΈΡΠΏΠ΅ΡΡΠ½ΠΎΡΡΠΈ ΠΈ ΠΏΠ»ΠΎΡΠ½ΠΎΡΡΠΈ ΡΠΏΠ°ΠΊΠΎΠ²ΠΊΠΈ ΡΠ°ΡΡΠΈΡ Π½Π°ΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»Π΅ΠΉ Π² ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ½ΠΎΠΉ ΠΌΠ°ΡΡΠΈΡΠ΅ΠΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΊΠ²Π°Π½ΡΠΎΠ²ΠΎ-Ρ
ΡΠΌΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠΎΠ΄Π΅Π»ΡΠ²Π°Π½Π½Ρ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Ρ ΠΌΡΠΆΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½Ρ Π²Π·Π°ΡΠΌΠΎΠ΄ΡΡ Ρ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ°Ρ
Π½Π° ΠΎΡΠ½ΠΎΠ²Ρ Π΅ΠΏΠΎΠΊΡΠΈΠ°ΠΌΡΠ½Π½ΠΎΠ³ΠΎ ΡΡΡΡΠ°ΡΡΠΎΠ³ΠΎ ΠΏΠΎΠ»ΡΠΌΠ΅ΡΡ Ρ Π΄ΠΈΡΠΏΠ΅ΡΡΠ½ΠΈΡ
ΠΎΠΊΡΠΈΠ΄ΡΠ² ΡΡΠ·Π½ΠΎΡ Ρ
ΡΠΌΡΡΠ½ΠΎΡ ΠΏΡΠΈΡΠΎΠ΄ΠΈ Al2O3, Fe2O3, TiO2, Π‘Π°Π. ΠΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Ρ Π·Π°ΠΊΠΎΠ½ΠΎΠΌΡΡΠ½ΠΎΡΡΡ Π²ΠΏΠ»ΠΈΠ²Ρ ΠΊΠΈΡΠ»ΠΎΡΠ½ΠΎ-ΠΎΡΠ½ΠΎΠ²Π½ΠΈΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ Π½Π°ΠΏΠΎΠ²Π½ΡΠ²Π°ΡΡΠ² Π½Π° ΠΌΡΠΆΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½Ρ Π²Π·Π°ΡΠΌΠΎΠ΄ΡΡ ΡΠ° ΠΏΡΠΎΡΡΠΎΡΠΎΠ²Ρ ΠΊΠΎΠ½ΡΠΎΡΠΌΠ°ΡΡΡ ΠΏΠΎΠ»ΡΠΌΠ΅ΡΡΠ². ΠΠΈΡΠ²Π»Π΅Π½Ρ Π·Π°Π»Π΅ΠΆΠ½ΠΎΡΡΡ ΡΡΡΡΠΊΡΡΡΠ½ΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡΠ² ΡΠ° Π²Π»Π°ΡΡΠΈΠ²ΠΎΡΡΠ΅ΠΉ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΡΠ² Π²ΡΠ΄ Π΄ΠΈΡΠΏΠ΅ΡΡΠ½ΠΎΡΡΡ Ρ ΡΡΠ»ΡΠ½ΠΎΡΡΡ ΡΠΏΠ°ΠΊΠΎΠ²ΠΊΠΈ ΡΠ°ΡΡΠΈΠ½ΠΎΠΊ Π½Π°ΠΏΠΎΠ²Π½ΡΠ²Π°ΡΡΠ² Ρ ΠΏΠΎΠ»ΡΠΌΠ΅ΡΠ½ΡΠΉ ΠΌΠ°ΡΡΠΈΡ
Organizational and technological compatibility of the technological processes of second and third line maintenance of KhTZ-3522 tractors
The work is devoted to systematic substantiation of productivity, production structure and specialization of service stations of KhTZ-3522 tractors. Based on the technical and economic comparative analysis of the results of the technological processes modeling of the second and third line maintenance of KhTZ-3522 tractors, the parametrical series of production structures of service stations both mono- and polytechnological specialization, which can work effectively in a wide range of the general annual program of orders, and in the conditions of seasonal fluctuations of orders for the maintenance of these tractors, are found. The results of calculations of the indicators system for organizational and technological compatibility of technological processes of the second and third line maintenance of KhTZ-3522 tractors in the joint technological flow are presented. The dependencies of these indicators on the total annual program of orders for service stations of different productivity are analyzed. According to the results of the analysis, the polytechnological specialization of such service stations is substantiated
Organizational and technological compatibility of the technological processes of second and third line maintenance of KhTZ-3522 tractors
The work is devoted to systematic substantiation of productivity, production structure and specialization of service stations of KhTZ-3522 tractors. Based on the technical and economic comparative analysis of the results of the technological processes modeling of the second and third line maintenance of KhTZ-3522 tractors, the parametrical series of production structures of service stations both mono- and polytechnological specialization, which can work effectively in a wide range of the general annual program of orders, and in the conditions of seasonal fluctuations of orders for the maintenance of these tractors, are found. The results of calculations of the indicators system for organizational and technological compatibility of technological processes of the second and third line maintenance of KhTZ-3522 tractors in the joint technological flow are presented. The dependencies of these indicators on the total annual program of orders for service stations of different productivity are analyzed. According to the results of the analysis, the polytechnological specialization of such service stations is substantiated
Introduction of Artificial Intelligence in the Justice System
[Purpose] The purpose of this study is to determine ways to introduce artificial intelligence into the Ukrainian justice system.
[Methodology/Approach/Design] The methodological basis of the study consists of theoretical and specialised legal methods: philosophical approaches, general and special methods of modern legal science, which are to interpret the law, and also general scientific styles.
[Findings] During the study, the features of the use of artificial intelligence in the justice system were established and an analysis of international experience in the use of artificial intelligence in the justice system was conducted, which allowed identifying positive and negative aspects in the practice of other countries. In addition, problems that may hinder the development of artificial intelligence in the justice system of Ukraine and positive trends in the introduction of this innovative communication technology were identified. Based on the identified disadvantages and advantages of using artificial intelligence in justice, it was determined which systems should be implemented in the Ukrainian justice system, in particular the βjudge's companionβ system. However, it is evident that at the moment artificial intelligence cannot completely replace people
Research of the Intramolecular Interactions and Structure in Epoxyamine Composites with Dispersed Oxides
With the help of the software package HyprChem, using a method of quantum-chemical modeling, research into intermolecular interactions between epoxyamine grid and oxides of different chemical nature Al2O3, Fe2O3, TiO2, Π‘Π°Π was carried out. To take into account hydroxyl-hydrate surface layer of oxides, molecular complexes of the fragment of epoxyamine grid and hydroxides of metals Al(OH)3, Fe(OH)3, Ti(OH)4, Ca(OH)2 were used as models. As a result of modeling, it was established that Ca(OH)2 molecule forms strong intermolecular bonds and has the greatest influence on the spatial conformation of the epoxyamine fragment. It was shown that a calcium atom is oriented to Ο-electron cloud of the benzene ring with formation of donor-acceptor bond, and OH-groups form hydrogen bonds with OH-groups of the residue of a molecule of epoxy oligomer in the grid. The studied intermolecular interactions of epoxyamine grid and hydroxides of amphoteric metals Al(OH)3, Fe(OH)3, Ti(OH)4 indicate the formation of low-energy inductive and dipole-dipole (orientation) bonds. It was established that existence of amphoteric hydroxides does not cause a change of the spatial conformation of the grid's fragment. It was shown that the ability of hydroxides of metals to affect the spatial conformation of a fragment of the epoxyamine grid increases in the series: Ti(OH)3<Al(OH)3<Fe(OH)3<Ca(OH)2. The resulting series coincides with the series, in which basic properties of active Branstad centers (OH-groups) with the central elements Ti4+<Al3+<Fe3+<Ca2+ increase (acidic properties decrease). The influence of the oxide filler on the structure and spatial conformation of epoxyamine grid increases with an increase of basicity (alkalinity) of an oxide. Resistance of composites to aqueous aggressive media depends on the surface acidic-basic properties, dispersion and package density of fillers' particles in the polymer matrix. When adding strongly basic calcite oxide (CL), chemical resistance of composites decreases by 5 times. In this case, composites with non-homogeneous structure and non-uniform distribution of compacted areas are formed. It was found that when adding amphoteric rutile oxides (RT), alumina (AL) and hematite (HM), the main factors that affect chemical resistance of filled composites include dispersion and package density of fillers' particles. The calculated parameter a of composites, which describes package density of the filler in the polymer matrix, increases in the series of fillers HM<RT<AL. This series coincides with the series, in which resistance of filled composites in all aggressive media decreases. At an increase in package density of a filler, probability of pegridration of aggressive medium into the material decreases, which is associated with extension of the diffusion path