MODELING OF MANAGEMENT OF INTELLIGENT SYSTEMS IN TRANSPORT Tkachenko, K.; Tkachenko, O.
Zbìrnik naukovih pracʹ Deržavnogo unìversitetu ìnfrastrukturi ta tehnologìj. serìâ "Transportnì sistemi ì tehnologìï",
06/2022
39
Journal Article
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The article considers topical problems of modeling control processes in intelligent systems in transport. Management of such systems also involves control and monitoring of the processes of their ...design and maintenance. The article proposes an ontological model of process control of intelligent systems in transport. The proposed ontological model is necessary for the formation of a common understanding of the essence of the subject area, which is the transport sphere (transport systems, transport enterprises, vehicles and transport infrastructure). The proposed ontological model contributes to the presentation of knowledge in a form that is convenient for their processing in the intelligent system of transport; ensuring the possibility of obtaining and accumulating new knowledge. The proposed ontological approach provides multiple use of knowledge and previously developed ontologies. The proposed approach allows the use of modern multi-agent technology, when each agent has its own ontological model. The considered ontological approach to modeling of management of intelligent systems allows to pass to automatic control of processes in these systems (in the presence of the corresponding restrictions). The developed ontological model of the subject area is planned to be expanded and supplemented with new components, imposing appropriate restrictions. The OWL software code obtained from the simulation results in Protégé can be further used within the knowledge base of the intelligent system, processing this information in various software applications, including Java applications.
Magnetotransport in mesoscopic samples with semiconductor artificial graphene has been simulated within the Landauer–Büttiker formalism. Model four-terminal systems in a high-mobility two-dimensional ...electron gas have a square shape with a side of 3–5 μm, which is filled with a short-period (120 nm) weakly disordered triangular lattice of antidots at the modulation amplitude of the electrostatic potential comparable with the Fermi energy. It has been found that the Hall resistance
in the magnetic field range of
B
= 10–50 mT has a hole plateau
, where
R
0
=
h/
2
e
2
= 12.9 kΩ, at carrier densities in the lattice below the Dirac point
n
<
n
1D
and an electron plateau
at
n
>
n
1D
. Enhanced disorder destroys the plateaus, but a carrier type (electrons or holes) holds. Long-range disorder at low magnetic fields suppresses quantized resistance plateaus much more efficiently than short-range disorder.
Quantum transport has been simulated in hexagonal semiconductor lattices of antidots with a period of 80 nm and short-range disorder. Wannier diagrams, i.e.,
DoS
(
n
,
B
) maps of the density of ...states, where
n
is the electron density and
B
is the magnetic field strength, have been calculated for several potential modulation amplitudes comparable to or much larger than the Fermi energy. Deep dips in the maps of the density of states have the form of rays with positive, zero, and negative slopes. In addition to the fan of the rays separating the first and second, as well as the second and third Landau levels, the maps include rays that are parallel to them and are shifted in
n
and
B
by integers of the characteristic electron density
n
0
and the characteristic magnetic field strength
B
0
, respectively. It has been shown that the sign and magnitude of the slope of the rays in the density of states correspond to the centers of the plateaus of quantized Hall resistances
R
xy
. The lattice is brightly manifested in the
R
xy
(
n
,
B
) maps as the replicas of the first and second plateaus in
R
xy
and as oscillations of
R
xy
between negative and positive values at a fixed magnetic field or a fixed electron density, which indicates the interchange between the hole and electron charge carriers.
MODELING OF SYSTEM FOR MONITORING OF RISKS IN THE TRANSPORT Tkachenko, K.; Tkachenko, O.; Tkachenko, O.
Zbìrnik naukovih pracʹ Deržavnogo unìversitetu ìnfrastrukturi ta tehnologìj. serìâ "Transportnì sistemi ì tehnologìï",
12/2021, Letnik:
1, Številka:
38
Journal Article
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The article deals with the actual problems of modeling the processes for monitoring risks in transport. This monitoring involves determining the state of transport objects, as well as procedures for ...minimizing the consequences of situations caused by the onset of risks. The article discusses the problems of effective creation of system for monitoring of risks in transport based on the use of appropriate models. The article proposes modeling this system based on situational-semantic model. The approach proposed would contribute to recognition of risks and generation of management decisions to eliminate their consequences. The proposed situational-semantic model allows: to predict the behavior of complex transport objects and transport infrastructure objects; take into account the possibility of emergence of new transport objects and processes for ensuring their functioning in conditions of minimizing possible risks; respond adequately to local and global factors of influence on transport objects; dynamically change the structure of the system; take into account new data to predict the development and improvement of relevant transport objects; predict the development of processes to ensure minimization of risks and the consequences of them.
Introduction
International experience convincingly shows the prevalence of mental disorders secondary to COVID-19, the pathogenesis of which includes biological and psychosocial factors, which ...characterizes this area of research as relevant and timely.
Objectives
Analysis of the structure of the most common forms of psychopathology within consequences in COVID-19.
Methods
The study involved 45 patients with depressive episodes of varying severity (F 32.0, 32.1, 32.2) and 37 ones with anxiety disorders (F 40, 41). The average age of the examined groups was 39.42 ± 5.68 and 31.54 ± 4.36 years respectively.
Clinico-psychopathological, psychodiagnostic, statistical methods were used.
Results
Significantly more patients with depressive disorders before the first clinical manifestations of the disease experienced COVID-19 in mild and moderate form (31.82% and 68.18% of individuals, respectively) (p <0.05), while patients with anxiety disorders were more affected to some stressors of the SARS-COV-2 pandemic (including threatening information background (83.78% of people), quarantine measures in the form of self-isolation (75.66% of people), uncertainty of the impact of coronavirus infection on the socio-economic situation) (62.16% of people)) (p < 0.05). It was found that the examined patients with a history of coronavirus COVID-19 are more likely to have depressive and asthenic syndromes in the clinical picture (p < 0.05), while patients with psychogenic effects of the pandemic - anxiety-phobic and somato-autonomic syndromes (p < 0,05).
Conclusions
Data on the influence of coronavirus disease COVID-19 and stressors of the SARS-CoV-2 pandemic on the formation of mental disorders of various genesis will allow to develop prevention algorithms and personalize therapeutic programs.
Disclosure
No significant relationships.
What are effects of androgen, estrogen and anti-Müllerian hormone (AMH), independent of FSH action, on the development and function of primate follicles from the preantral to small antral stage in ...vitro?
Androgen and estrogen, but not AMH, promote follicle survival and growth in vitro, in the absence of FSH. However, their growth-promoting effects are limited to the preantral to early antral stage.
FSH supports primate preantral follicle development in vitro. Androgen and estrogen augment follicle survival and growth in the presence of FSH during culture.
Nonhuman primate model; randomized, control versus treatment groups. Rhesus macaque (n = 6) secondary follicles (n = 24 per animal per treatment group) were cultured for 5 weeks.
Follicles were encapsulated in 0.25% (w/v) alginate and cultured individually in modified alpha minimum essential media with (i) FSH (1 ng/ml; control), (ii) no FSH, (iii) no FSH + estradiol (E2; 100 pg/ml)/dihydrotestosterone (DHT; 50 ng/ml) and (iv) no FSH + AMH (50 ng/ml). In a second experiment, follicles were cultured with (i) FSH (1 ng/ml), (ii) no FSH, (iii) no FSH + E2 (1 ng/ml), (iv) no FSH + DHT (50 ng/ml) and (v) no FSH + E2/DHT. Follicle survival, antrum formation and growth pattern were evaluated. Progesterone (P4), E2 and AMH concentrations in culture media were measured.
In the first experiment, FSH deprivation significantly decreased (P < 0.05) follicle survival rates in the no FSH group (16 ± 5%), compared to CTRL (66 ± 9%). E2/DHT (49 ± 5%), but not AMH (27 ± 8%), restored follicle survival rate to the CTRL level. Similarly, antrum formation rates were higher (P < 0.05) in CTRL (56 ± 6%) and E2/DHT groups (54 ± 14%), compared to no FSH (0 ± 0%) and AMH (11 ± 11%) groups. However, follicle growth rate after antrum formation and follicle diameter at week 5 was reduced (P < 0.05) in the E2/DHT group (405 ± 25 μm), compared to CTRL (522 ± 29 μm). Indeed, the proportion of fast-grow follicles at week 5 was higher in CTRL (29% ± 5), compared to E2/DHT group (10 ± 3%). No fast-grow follicles were observed in no FSH and AMH groups. AMH levels at week 3 remained similar in all groups. However, media concentrations of P4 and E2 at week 5 were lower (P < 0.05, undetectable) in no FSH, E2/DHT and AMH groups, compared to CTRL (P4 = 93 ± 10 ng/ml; E2 = 4 ± 1 ng/ml). In the second experiment, FSH depletion diminished follicle survival rate (66 ± 8% in control versus 45 ± 9% in no FSH, P = 0.034). E2 plus DHT (31.5 ± 11%) or DHT alone (69 ± 9%) restored follicle survival rate to the control (FSH) level as expected. Also, E2 plus DHT or DHT alone improved antrum formation rate. However, in the absence of FSH, E2 plus DHT or DHT alone did not support growth, in terms of follicle diameter, or steroid (P4 or E2) production after the antral stage.
This study is limited to in vitro effects of E2, DHT and AMH during the interval from the secondary to small antral stage of macaque follicular development. In addition, the primate follicle pool is heterogeneous and differs between animals; therefore, even though only secondary follicles were selected, follicle growth and developmental outcomes might differ from one animal to another.
This study provides novel information on the possible actions of estrogen and androgen during early follicular development in primates. Our results suggest that sequential exposure of preantral follicles to local factors, e.g. E2 and DHT, followed by gonadotropin once the follicle reaches the antral stage, may better mimic primate folliculogenesis in vivo.
Research reported in this publication was supported by the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Center for Translational Research on Reproduction and Infertility 5P50HD071836, and the NIH Primate Centers Program 8P510D011092. There are no conflicts of interest.
Modern winemaking in Ukraine is being significantly transformed and is actively developing. Our state has now turned to the search for its own wines and grape varieties. For international ...recognition, it is important to develop your case of wines that will be able to show the diversity of wine regions from Southern Bessarabia and the Northern Black Sea Coast to Transcarpathia. There are more and more small winemakers who are experimenting with new varieties, such as Sukholimansky white, Citronny Magaracha, Zagrei, Johanniter, Zvalgate, Solaris, Aromatny, Telti Kuruk and various muscat varieties. The organoleptic profile of such wines should express the varietal characteristics of local grape varieties and the agro-climatic features of the terroir. At the same time, the modern technology of white table wines should be built on the principles of maximum preservation of varietal aroma and minimization of its oxidation during the technological process. The article reflects the results of theoretical studies of literary sources regarding the mechanisms of oxidative processes of various nature in the process of grape processing; the market of modern preparations for stabilizing wine materials is considered. According to the goal, the influence of the use of the enzyme preparation Viazim clarif one on the process of clarifying the wort was investigated. The effect of complex antioxidant pasting of wort with the stepwise application of "Tanal W4", "Polygreen" and "Granula" bentonite on aromatic compounds and the formation of the aromatic profile of the finished product was also studied. At the last stage of research, the organoleptic profile of white wine materials of the studied grape varieties was determined. It was established that the general trend of stabilization processes in modern winemaking is transferred to the wort stage. According to the results of practical tests, in the form of trial pastes of wort, it is proposed to use the enzyme preparation "Viazim clarif one" at the stage of extracting wort; the effect of complex antioxidant pasting of wort with stepwise application of "Tanal W4", "Polygreen" and "Granula" bentonite was studied. Practical recommendations have been developed for winemakers on the application of antioxidant wort pasting for domestic grape varieties Sukholimansky white and Citronny Magaracha, which are now gaining popularity in Ukraine.
The article analyzes the formation of the readiness of undergraduates of higher agricultural education for future professional and pedagogical activities. Based on the analysis, it was found that the ...result of professional and pedagogical training of undergraduates in agricultural universities is formed readiness as an integrative professional and personal education, which is characterized by stable pedagogical orientation and provides a set of knowledge, skills, and abilities necessary for a successful professional and pedagogical activities—institutions of higher education of agrarian profile. The criterion base of the formation of educational and cognitive activity of students of institutions of higher agricultural education is determined and substantiated. Revealing the essence of professional and pedagogical training of undergraduates in agricultural universities, the criteria of their readiness to carry out professional and pedagogical activities (professional-motivational, cognitive-substantive, operational-activity, personal-reflexive) are determined. The professional-motivational criterion characterizes the set of motives, interests, and needs, which determines the orientation of undergraduates to professional and pedagogical activities in conjunction with the awareness of personal qualities to the requirements of activities and conscious motivation of personal aspirations. Cognitive-semantic criterion is the information-semantic basis of the professional and pedagogical activity of undergraduates because their mastering serves as a basis for knowledge and transformation of pedagogical reality, the actualization of the whole set of knowledge concerning solving professional and pedagogical tasks and their transformation into ways of activity—independent cognitive activity of undergraduates. Operational-activity criterion presupposes the formation of skills and experience of creative activity of future specialists, which ensures their ability to find new decision strategies and successfully organize the educational process with students. Personality-reflexive criterion determines the level of self-awareness of the master, which means a set of ideas about himself as a person and teacher-professional (professionally critical personal qualities: creativity, responsibility, communication, decision-making ability), as well as their teaching style in the context of vocational training.
Improvement of the safety of multi-floor housing Tkachenko, T; Mileikovskyi, V; Dziubenko, V ...
IOP conference series. Materials Science and Engineering,
08/2020, Letnik:
907, Številka:
1
Journal Article
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To improve the safety in common areas of multi-storey buildings (lift halls, common corridors), it is proposed to renovate interiors of the areas. Such areas usually have no permanent ventilation. ...Thus, they can accumulate pathogenic microorganisms and viruses. The effective solution for reducing the danger is phytoncides plants. For successful phytodesign, an assortment of phytoncides plants of 11 species has been developed: Aspidistra elatior, Aglaonema "Silver queen", Aglaonema "Maria", Chlorophytum comosum, Chlorophytum capense, Dracena marginata, Monstera deliciosa, Philodendron scandens, Sansevieria triaeffieria trichelifera, Zamiaculcas zamiifolia. The offered assortment completely corresponds to climatic features of premises. For the normal growth and development of plants in the absence of natural light, three options for additional effective illumination are proposed.
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