Sensitivity analysis of the nonparametric criterion of aircraft flght control system sensors failures detection and isolation

Failures of the aircraft control system sensors can cause both deterioration of stability and controllability characteristics and the inability of safe automatic control. It is necessary to detect and isolate such failures to determine the time and place of their occurrence in order to disable failed sensors or to diagnose them subsequently for reconfiguration during the flight. The direct use of traditional parametric approaches for sensors health monitoring by using their mathematical models is impossible due to the lack of data about the true information input signals received by their sensitive elements. This leads to the necessity of solving the problem of modeling the aircraft flight dynamics with a high level of uncertainties, which makes it difficult to utilize the functional control methods and necessitate the use of excessive sensor hardware redundancy. Well-known nonparametric methods either require a priori knowledge base, preliminary training or long-term tuning on a large volume of real flight data or have low selective sensitivity for reliable detection of failed sensors. In this work, the original nonparametric criterion for detecting and isolating sensors failures is derived. Its sensitivity is analyzed by using a complete nonlinear mathematical model of aircraft flight dynamics with a regular flight control system. The theoretical value and the criterion sensitivity coefficients are determined. The formula for the automatic evaluation of the float criterion threshold value is given. A high convergence of the results with theoretical ones is shown. This makes it possible to use the obtained criterion not only for the instant detection and isolation of sensors failures, but also for preliminary diagnostics of their quantitative characteristics.

Optimization of the pre-starting state of athletes in rhythmic gymnastics at the initial stage of basic training

Against the background of intensifying competition in the international arena, the demands placed on female athletes in rhythmic gymnastics are growing, which requires the formation of female athletes' ability to self-control and self-regulation. The purpose of the article is to substantiate and develop an algorithm for optimizing the pre-start condition of young gymnasts at the stage of preliminary basic training. Research methods: analysis, systematization and generalization of data of scientific literature, methods of assessment of Spielberger-Khanin situational anxiety, statistical analysis. The study involved 10 gymnasts who train at the stage of basic preliminary training (8-12 years), who took part in the International Competition "Dmitrash Cup 2021". Result. It is proved that the average assessment of situational anxiety of young gymnasts in the pre-competition period is statistically significant (p <0.05) increases from 19.3 to 35.1 points. The most effective in the training process of gymnasts at the stage of initial basic training methods and techniques to combat the state of pre-start overstrain: psychological and pedagogical, hardware means of influence, methods of relaxation and mobilization and psychophysiological influences. An algorithm for optimizing the pre-start state of female athletes in rhythmic gymnastics at the initial stage of basic training, namely the establishment of the type of temperament of the athlete, the diagnosis of her pre-start state, the application of methods of regulation of pre-start states. The prospect of further research is the development of methods for optimizing the pre-start condition of athletes in rhythmic gymnastics and the formation of their skills of self-regulation in the training process at the stage of initial basic training.

THE ROLE OF NON-FORMAL AND INFORMAL EDUCATION IN THE DEVELOPMENT OF THE TERRITORIES OF SOUTHERN UKRAINE ON THE BASIS OF SMART – SPECIALIZATION

The article considers the essence and prerequisites for the formation and application of informal and non-formal education in Ukraine. The essence of formal education is revealed and distinctive features of informal and non-formal education are determined, namely: absence of age restrictions; lack of time frame; lack of preconditions for starting training (level of preliminary training, etc.); short training time (several days, several weeks); accessibility for residents of small towns; the possibility of using distance learning; the possibility of flexible formation and updating of training programs for the needs of the local community. The connection between human capital and informal and non-formal education is shown. The expediency of studying the development of territories from the standpoint of the concept of SMART-specialization is substantiated. SMART-specialization involves identifying the strengths and development of the region’s competitive advantages and determining the direction of strategic development related to the priority resources of the region. Examples of resource specialization of the territories of the South of Ukraine are given. Particular attention is paid to resources used in tourism. It is noted that territorial tourist and recreational resources are distributed very unevenly. Areas located on the coast are more attractive to tourists during the summer holidays, while areas away from the coast can offer year-round tourism products that are based on the use of such resources as: cultural, architectural, health -recreational, event-cognitive and others. The role of formal and non-formal education in the development of the territories of the South of Ukraine is determined on the basis of SMART – specialization, which is as follows: informal and non-formal education increase the level of knowledge of the population in the context of effective ecological and economic use of local resources. This means the following: first, it is necessary to study the priority of territorial resources in terms of obtaining at their expense environmental, economic and social effects; secondly, it is necessary to plan programs of informal and non-formal education in a certain territory, based on how progressive the changes will be due to the acquired knowledge about the use of local resources.

Effects of Limited Hold on Equivalence Class Formation

In an attempt to limit the opportunity to engage in mediating behavior, two groups of adult participants received preliminary training in identity matching with limited hold levels (LH) for responding of 0.7 s for the sample and 1.2 s for the comparisons. The two groups were subsequently trained to form three 5-member classes, using the same LH levels, where the A, B, D, and E stimuli were abstract stimuli, and the C stimuli were meaningful pictures. In two tests for emergent relations, the LH for Group Short was unchanged, whereas 5 s were added to the LH for the comparisons for Group Long. None of the participants in Group Short responded in accordance with stimulus equivalence in either of the two tests. In Group Long, one participant responded in accordance with stimulus equivalence in the first test, and an additional eight participants formed equivalence classes in the second test.

Specifics of teaching the academic discipline “Sea astronomy” to future boatmaster

The article presents the scientific problem solution of improving the professional training of future boatmasters of higher educational maritime institutions. The purpose of the article is to analyse and summarize the specific teaching of the academic discipline “Sea Astronomy” by future navigators. For this purpose, a number of scientific works on the research topic authored by domestic and foreign scientists are analysed. The specifics of professional training of these specialists are revealed. The content of the academic discipline “Sea Astronomy” is analysed. The specific features of teaching the discipline are also presented, which are the formation of skills in future navigators to use devices to ensure the safety of navigation; learning the basics of instruments and tools preparation in training for the flight and during the voyage; solving problems to determine the errors of the chronometer, determining the location of the ship by astronomical methods; teaching to operate small but fairly simple devices, the methods of which require high accuracy of measurements and calculations; a significant proportion of classroom hours falls on practical classes; combination in seafaring astronomy of autonomous sections of celestial mechanics, spherical trigonometry, optics, etc., which require their separation into independent topics in the discipline; combination at the end of the discipline study into a complete holistic system of all the above individual sections of science; taking into account certain recommendations by future boatmasters: implementation of preliminary training in the performance of laboratory and practical work; carrying out continuous control of measurements and calculations at each stage. The conclusions of the research and prospects for further research are formulated. Key words: future boatmasters; seafaring astronomy; specifics of the discipline; navigation; professional training.

The use of algorithmic elements to improve the quality of foreign cadets vocational training at military universities

This paper examines the use of elements of the theory of algorithms in order to improve the quality of foreign cadets education. A number of problems noted in teaching first-year cadets from Asian and African countries associates with poor knowledge of the Russian language at the time of training. Cadets have different levels of preliminary training that they have received in their countries. Algorithmic constructions help cadets to master the courses of the first year of study. The paper provides a methodological basis on scientific works of leading scientists and professors. According to the management of quality training theory, a respective approach is implemented in the organization of classes. The purpose of this work is substantiation and practical application of the proposed measures for managing the quality of foreign first-year-cadets training through graphic models based on the theory of algorithms. There are options for conducting a training session using a comprehensive teaching methodology, including systematization of knowledge, development of algorithmic thinking and the use of computer technologies. The results of conducting classes according to the proposed methodology show its effectiveness in training groups of foreign cadets.

General questions of building the stage of pre-competition training

Success in competition is ensured by long-term preparation, but direct pre-competition training (DPT) is of fundamental importance, with the help of which athletes must bring themselves to a state of high or the highest working capacity. Modern views on the essence and construction of preliminary training stage most intensively began to be formed since the 1960s. The reason for this was the appearance of such fundamental projects, such as "Periodization of sports training" by L.P. Matveva, "The current system of sports training" by N.G. Ozolina, "The coach of athletics trainer" ed. L.S. Khomenkovoi. The success in competitions is provided by long-term training, but fundamental importance has a direct pre-competition training (DPT), by which athletes should lead themselves to a state of high or the highest efficiency. If the goal of competition is only of training or control nature and athlete is not eager to achieve a high result, then DPT is not necessary before the starts. Such a combination of the process of training and participation in competitions may occur in the first competitions at the beginning of the competitive period. However, when there is a participating in high-level competitions or even more in the culminating competitions, in such an event, DPT is essential. Mistakes in the building of the phase of the DPT are often the reason not only for an unsuccessful speech in the main competition, but it is also the reason for a slowed down growth of achievements and even deterioration of them. All training of an athlete can be considered successful if he shows the best result in the crucial competition with a significant progress in his accomplishments.

Pharmacoeconomic analysis of the choice of antimicrobial drugs for the treatment of community-acquired pneumonia by physicians and final year medical students

The authors of the article conduct a pharmacoeconomic analysis of antimicrobial agents (AMA) prescriptions based on a survey of graduates of the medical faculty of a medical university and outpatient healthcare practitioners in Moscow. In addition to the pharmacoepidemiological part, the article also contains a pharmacoeconomic aspect to obtain a more complete picture, reflecting the choice of drugs not only in primary healthcare, but also among graduates of the medical faculty, who can potentially become its members without preliminary training in medical residency.The purpose of this study is to conduct a comparative pharmacoeconomic analysis of the AMA choice in the treatment of community-acquired pneumonia based on the data of a survey of general practitioners, district physicians and graduates of the medical faculty.Methodology. The 206 physicians took part in the anonymous voluntary survey.Results. 177 (85.9 %) of surveyed doctors were women and 62 (14.1 %) were men who made up Group 1. The average age of the surveyed doctors was 47.8±13.3 years, the average medical experience was 21.4±13.4 years. Group 2 consisted of 240 students, of which 178 were women (74.17 %) and 62 were men (25.83 %). The average age of the respondents in the group 2 was 24.8±3.3 years. When calculating the average cost of a treatment course of community-acquired pneumonia, depending on the structure of prescriptions, the value in Group 1 amounted to 420.82 rubles and 367.44 rubles in Group 2, while the share of costs for aminopenicillin drugs directly recommended for prescription to treat community-acquired pneumonia amounted to 8.35 and 4.97 %, respectively. Despite the current recommendations, respondents prefer to choose second-line AMAs, which are more expensive drugs. Respondents in both groups underestimate the first-line drugs that meet the current recommendations, namely aminopenicillins. Despite their low cost and ease of use in an outpatient setting, the frequency of their prescription remains low. The authors believe that more attention should be paid to the problem of rational use of antimicrobial agents. This problem can be solved through educational interventions at all levels of education, which can change the picture of drugs prescriptions in future, will allow practitioners and graduates of medical faculties to refer more often to clinical guidelines and patient treatment protocols. Comprehensive measures in this direction can not only positively affect the quality of medical care, but also reduce antibiotic resistance in the outpatient setting.

Increasing the Safety of Operation of Industrial Technical Systems from the Composite Materials by Predicting Their Life on the Basis of New Methods of Non-Destructive Control and Deep Neural Networks

The problem is considered related to increase of the operational safety of industrial facilities made of composite materials by means of an a priori assessment of the maximum service life. Two tasks are being solved: development of the new methods and means of non-destructive testing allowing to identify the defects that appear in the process of testing products with various loads and in the process of their operation; development of the new methods and means for assessing service life of the products based on the results of non-destructive testing. The first problem is being solved by the development of optical-thermographic non-destructive testing, including the technologies of ultrasonic thermotomography and electric force thermography, which determine the state of the object by dynamic temperature fields and optical control technology based on the fiber-optic sensors that measure the amount of material internal deformation under a force effect on the structure. Solution to the second problem is based on the use of neural network analysis (artificial neural networks) for assessment and prediction of the service life using the results of non-destructive testing with preliminary training of the neural network. An estimate was obtained by the experimental studies related to the error in determining the products service life, which is 12.6 %. The implementation of the proposed approach will allow to create the new technologies for predicting the service life of elements and structures made of composite materials using the results of non-destructive testing, which will provide an additional opportunity for developing practical recommendations on the confirmation or extension of the service life and improvement of safety for structures operation.

Naming of Stimuli in Equivalence Class Formation in Children

In the present study, two typically developing 4-year-old children, Pete and Joe, were trained six conditional discriminations and tested for the formation of three 3-member equivalence classes. Pete and Joe did not establish the AC relation within 600 trials and were given two conditions of preliminary training, including naming of stimuli with two different stimulus sets. Pete started with preliminary training with common naming of stimuli, followed by conditional-discrimination training and testing for emergent relations, and continued with preliminary training on individual naming of stimuli, followed by the same training and testing as described previously. Joe experienced the same conditions but in reversed order. Pete responded in accordance with equivalence in the second round in the condition with common naming. In the first round of testing in the condition with individual naming, he responded in accordance with equivalence. In the condition with individual naming, Joe did not respond in accordance with stimulus equivalence but established all of the directly trained relations during training. In the condition with common naming, he responded in accordance with equivalence in the first round of testing. The results from the experiment support earlier findings that both common and individual naming could facilitate the emergence of equivalence classes.