scholarly journals Automated planning of the optimal movement trajectories of mobile mechatronic devices

2021 ◽  
Vol 102 (2) ◽  
pp. 64-77
Author(s):  
Valerii Kyrylovych ◽  
Petro Melnychuk ◽  
Lubomir Dimitrov ◽  
Ilona Kryzanivska
Keyword(s):  
Automated Planning ◽  
Practical Significance ◽  
Movement Trajectories ◽  
Software Product ◽  
Optimal Movement

The compatible work is considered and the obtained results of the known algorithms generating unobstructed trajectories of different length and smoothness are investigated. Their operation is performed within the framework of the developed software product LSTr. The use of the analyzed set of these algorithms on the set of considered sections of the generated trajectories according to the obtained results allows a differentiated approach to the use of different algorithms on different sections of trajectories, determined by the accepted criteria of length and / or smoothness. The scientific novelty of the work and its practical significance in this area of research are determined.

Calculation of Optimized Movement Trajectories for the Human Forearm

2013 ◽  
Vol 401-403 ◽  
pp. 1347-1352
Author(s):  
Li Li Yang
Keyword(s):  
Discrete Time ◽  
Linear Quadratic Regulator ◽  
Minimum Variance ◽  
Movement Trajectory ◽  
Linear Quadratic ◽  
Variance Model ◽  
Movement Trajectories ◽  
Human Forearm ◽  
Optimal Movement ◽  
Time Linear

Using the minimum variance model, optimal human forearm trajectories formation was investigated using a discrete time linear quadratic regulator. First, the continuous dynamics of the human forearm were established on the basis of the relation between muscle torque and neural control signal, and then we transferred the continuous system dynamics to discrete time notation. Finally we expressed the objective function of minimum variance model using a discrete time linear quadratic regulator and employed Riccati recursion to obtain the optimal movement trajectories of the human forearm. The results of example simulation show that the optimal movement trajectory of the forearm follows a smooth curve, and the speed curve of the hand is single peaked and bell shaped. These are in good agreement with the inherent kinematic properties of optimal movement, and therefore the method is effective for calculating the optimal movement trajectory of the human forearm.

scholarly journals Дослідження просторових моделей варіювання урожайності картоплі у Поліській та Лісостеповій зонах України

2019 ◽  
pp. 49-55
Author(s):  
А. А. Зимароєва
Keyword(s):  
Principal Components ◽  
Principal Component ◽  
Potato Yield ◽  
Practical Significance ◽  
Forest Steppe ◽  
Variation Patterns ◽  
Software Product ◽  
Specific Variation ◽  
R Programming ◽  
Potato Yields

Метою даної роботи було встановлення закономірності просторово-часової варіабельності урожайності картоплі у Поліський і Лісостеповій зонах України та визначення співвідношення факторів динаміки агроекономічної та агроеклогічної природи. Методика дослідження. Закономірності просторової неоднорідності урожайності картоплі на території 267 адміністративних районів України протягом 27 років вивчалися за допомогою аналізу головних компонент (PCA). Статистичний аналіз виконаний за допомогою програмного продукту Statistica 10, а також бібліотеки REdaS для середовища статистичних розрахунків R. Результати дослідження. Аналіз головних компонент залишків моделі часового тренду дозволив встановити три аспекти мінливості врожайності картоплі в межах дослідженої території, або головні компоненти. Разом ці три головні компоненти описують 43,1% загальної варіабельності урожайності картоплі. Змінні, які застосовані в аналізі головних компонент, є порядковими величинами – роками, тому навантаження головних компонент на них можуть бути представлені, як динамічні зміни у часі. Тому головні компоненти віддзеркалюють специфічні патерни коливальної природи варіювання врожайності картоплі у часі, які є просторово визначеними. На основі характеру варіювання нами зроблені припущення стосовно природи даних головних компонент. Наукова новизна роботи полягала у тому, що вперше було застосовано аналіз головних компонент щодо врожайності картоплі в Україні та виявлено фактори, що обумовлюють її мінливість. Практична значущість. Карти просторового варіювання головних компонент можуть бути основою для агроекологічного зонування території. This paper is aimed at establishing the regularities of the spatial-temporal variability of potato yield in Polissia and Forest-Steppe zones of Ukraine and determining the correlation between the dynamics factors of agro-economic and agro-ecological nature. Methods of research. The regularities of spatial heterogeneity of potato yield on the territory of 267 administrative districts of Ukraine for over 27 years were studied using the principal component analysis (PCA). The statistical analysis was conducted using the Statistica 10 software product, as well as REdaS library for the statistical calculations in R Programming Environment. The research results. Principal components analysis of the time trend model residues enabled to establish three aspects of potato yield variability within the studied area, or the principal components. Taken together, these three principal components explain 43.1% of the overall potato yields variability. The variables used in the PCA are the ordinal quantities – the years, so the loadings of the principal components on the variables can be represented as dynamic changes in time. Therefore, the principal components of oscillatory patterns reflect the specific variation patterns of potato yield in time, and these patterns are spatially defined. These oscillatory processes are of ecological origin. Concerning the dynamic aspect, these principal components are determined by different frequency characteristics of variation in time. Based on the character of the variation, we made the assumptions about the nature of the given principal components.  Scientific novelty. It was for the first time that the PCA was used for studying the data concerning potato yields, and the factors that determined yields variability were identified. Practical significance. Maps of the spatial variation of principal components can be the basis for agro-ecological zoning of the territory.

scholarly journals The Process of Management and Control of Feasibility Planning of Road Construction Using the Financial Information System

2020 ◽  
Vol 12 (1) ◽  
pp. 184
Author(s):  
Gulnara A. Gareeva ◽  
Diana R. Grigoreva ◽  
Ilnur I. Mahmutov
Keyword(s):  
Information System ◽  
Economic Effect ◽  
Road Construction ◽  
Economic Planning ◽  
Financial Information ◽  
Practical Significance ◽  
Task Distribution ◽  
Software Product ◽  
Effective Organization ◽  
And Control

Technical and economic planning control and effective organization of management processes in current situations are particularly significant. This is essential to automate orders and handle them effectively. Hence, the solution of tasks associated with planning, accounting, and distribution of orders is of great practical significance. The financial information system that operates at the enterprise does not allow sufficient automation of the enterprise's work and divisions. Analysis of the information system has revealed that automation of document flow and information flows of employees of the "planning and economic Department" is inadequate.Consequently, research objects are the business process - "Technical and economic planning" and the task "Distribution of orders by teams." The subsystem «Technical and economic planning» was produced, indicating the subsystem's tasks and the functions of the tasks. A connection diagram was composed of the tasks of this subsystem with the tasks of other subsystems. The task «Distribution of orders by teams» was expanded and implemented as a software product in the 1C programming environment. The chief issues of ensuring the information security of enterprises and the direction of forming a system of protection of information resources, particularly of limited access resources, are considered. The effectiveness of the implementation of the task “Distribution of orders by teams” were assessed: the annual economic effect of the implementation amounted to 2237, 03 rub.; the cost of developing a software product – 25715,40 rub.; discounted payback period is 11 months.

Specimen Preparation for Clinical Applications of X-Ray Microanalysis

1990 ◽  
Vol 48 (2) ◽  
pp. 328-329
Author(s):  
J.D. Shelburne ◽  
G.M. Roomans
Keyword(s):  
Carbon Coating ◽  
Clinical Applications ◽  
Point Of View ◽  
Practical Significance ◽  
Sweat Test ◽  
Specimen Preparation ◽  
Tissue Preparation ◽  
X Ray ◽  
Gallbladder Stones ◽  
Clinical Problems

Proper preparative procedures are a prerequisite for the validity of the results of x-ray microanalysis of biological tissue. Clinical applications of x-ray microanalysis are often concerned with diagnostic problems and the results may have profound practical significance for the patient. From this point of view it is especially important that specimen preparation for clinical applications is carried out correctly.Some clinical problems require very little tissue preparation. Hair, nails, and kidney and gallbladder stones may be examined and analyzed after carbon coating. High levels of zinc or copper in hair may be indicative of dermatological or systemic diseases. Nail clippings may be analyzed (as an alternative to the more conventional sweat test) to confirm a diagnosis of cystic fibrosis. X-ray microanalysis in combination with scanning electron microscopy has been shown to be the most reliable method for the identification of the components of kidney or gallbladder stones.A quantitatively very important clinical application of x-ray microanalysis is the identification and quantification of asbestos and other exogenous particles in lung.

Collective Efficacy and Organizational Commitment in an Italian City Hall

2009 ◽  
Vol 14 (4) ◽  
pp. 363-371 ◽  
Author(s):  
Laura Borgogni ◽  
Silvia Dello Russo ◽  
Laura Petitta ◽  
Gary P. Latham
Keyword(s):  
Organizational Commitment ◽  
Collective Efficacy ◽  
Structural Equation ◽  
Structural Equation Models ◽  
Practical Significance ◽  
City Hall ◽  
Italian City ◽  
Public Sector Managers ◽  
The Individual ◽  
Level Group

Employees (N = 170) of a City Hall in Italy were administered a questionnaire measuring collective efficacy (CE), perceptions of context (PoC), and organizational commitment (OC). Two facets of collective efficacy were identified, namely group and organizational. Structural equation models revealed that perceptions of top management display a stronger relationship with organizational collective efficacy, whereas employees’ perceptions of their colleagues and their direct superior are related to collective efficacy at the group level. Group collective efficacy had a stronger relationship with affective organizational commitment than did organizational collective efficacy. The theoretical significance of this study is in showing that CE is two-dimensional rather than unidimensional. The practical significance of this finding is that the PoC model provides a framework that public sector managers can use to increase the efficacy of the organization as a whole as well as the individual groups that compose it.

Effect of Temperature on ADP-Induced Platelet Aggregation

1973 ◽  
Vol 29 (01) ◽  
pp. 183-189
Author(s):  
C. A Praga ◽  
E. M Pogliani
Keyword(s):  
Platelet Aggregation ◽  
Incubation Period ◽  
Room Temperature ◽  
Important Variable ◽  
Practical Significance ◽  
Effect Of Temperature ◽  
Induce Platelet Aggregation ◽  
Cuvette Holder ◽  
Exact Temperature

SummaryTemperature represents a very important variable in ADP-induced platelet aggregation.When low doses of ADP ( < 1 (μM) are used to induce platelet aggregation, the length of the incubation period of PRP in the cuvette holder of the aggregometer, thermostatted at 37° C, is very critical. Samples of the same PRP previously kept at room temperature, were incubated for increasing periods of time in the cuvette of the aggregometer before adding ADP, and a significant decrease of aggregation, proportional to the length of incubation, was observed. Stirring of the PRP during the incubation period made these changes more evident.To measure the exact temperature of the PRP during incubation in the aggre- gometer, a thermocouple device was used. While the temperature of the cuvette holder was stable at 37° C, the PRP temperature itself increased exponentially, taking about ten minutes from the beginning of the incubation to reach the value of 37° C. The above results have a practical significance in the reproducibility of the platelet aggregation test in vitro and acquire particular value when the effect of inhibitors of ADP induced platelet aggregation is studied.Experiments carried out with three anti-aggregating agents (acetyl salicyclic acid, dipyridamole and metergoline) have shown that the incubation conditions which influence both the effect of the drugs on platelets and the ADP breakdown in plasma must be strictly controlled.

Information technology for career guidance of creatively gifted university students

2020 ◽  
pp. 6-15
Author(s):  
S. A. Piyavsky ◽  
S. R. Kiryukov ◽  
A. S. Kuznetsov ◽  
G. A. Kulakov
Keyword(s):  
University Students ◽  
Career Guidance ◽  
Practical Significance ◽  
Structural Description ◽  
Joint Research ◽  
Research Activities ◽  
Information And Communication ◽  
System Functioning ◽  
Gifted Youth ◽  
Leading Enterprises

The article presents a structural description of the functioning of the regional information and communication system “Student and Labor” (SAL). This system is aimed at identifying and developing creatively gifted youth in the field of science, techniques and technology and is focused on the gradual involvement of university students in real work and interaction with leading enterprises in the region. The first cycle of the SAL system functioning is described, which has a complete character and has already led to a concrete result. The bank of information about the leading enterprises of the region that took part at the initial stage of the functioning of the SAL system were formed as well as the bank of 150 themes of scientific research for student projects, which were proposed by the enterprises themselves. All projects are focused on the practical significance of research for the enterprises themselves, as well as for students, their supervisors from universities and scientific consultants from enterprises that have embarked on joint research activities, which at the first stages are mostly of informational and educational nature. The Union of Employers of the Samara Region and the Council of Rectors of Universities in the Samara region are already taking the necessary measures to implement the described cycle of the functioning of the system SAL in the current academic year.

Digital education: Using electronic resources in psychological support of the educational process

2020 ◽  
pp. 55-61
Author(s):  
Ju. A. Tikhonova
Keyword(s):  
Preschool Education ◽  
Educational Process ◽  
Psychological Support ◽  
Diagnostic Methods ◽  
Practical Application ◽  
Software Products ◽  
School Year ◽  
Psychological Service ◽  
Software Product ◽  
The City

The article discusses the development trends of the modern preschool education system in the aspect of the activity of the teacherpsychologist of the preschool educational organization. The experience of using 1C software products in the practical work of the psychological service of kindergarten 318 of the city of Perm in the aspects of psychological monitoring of children’s readiness to study at school and correctional and developmental work with preschool children is presented. The components of the child’s psychological readiness for school are described. On practical examples, diagnostic methods for determining the level of readiness of children for schooling are analyzed. The data of testing kindergarten pupils at the beginning of the 2019/2020 school year on the parameters allowing to identify urgent problems and determine the direction of the necessary correctional development work are presented. Features of the practical application of the software product 1C:Preschool Psychodiagnostics in the process of psychological support of preparing children for school are considered. Methods are described, the scope of which is aimed not only at the study of personality traits, but also at its development. The possibilities of using games of the 1C:Educational Collection in the correctional and developmental work are disclosed. The description of game collections is given, options for their use are presented.

A Fault Detection Approach Based on Sound Signal Analysis for Equipment Monitoring

2020 ◽  
pp. 129-139
Author(s):  
Weihai Sun ◽  
Lemei Han
Keyword(s):  
Fault Detection ◽  
Signal Analysis ◽  
Energy Analysis ◽  
Detection Method ◽  
Sound Signal ◽  
Practical Significance ◽  
Time Frequency ◽  
Detection Approach ◽  
Machine Fault ◽  
Learning Data

Machine fault detection has great practical significance. Compared with the detection method that requires external sensors, the detection of machine fault by sound signal does not need to destroy its structure. The current popular audio-based fault detection often needs a lot of learning data and complex learning process, and needs the support of known fault database. The fault detection method based on audio proposed in this paper only needs to ensure that the machine works normally in the first second. Through the correlation coefficient calculation, energy analysis, EMD and other methods to carry out time-frequency analysis of the subsequent collected sound signals, we can detect whether the machine has fault.

The current state of the legislative implementation of criminal law policy

2020 ◽  
pp. 111-118
Author(s):  
Oleksandr Ostrohliad
Keyword(s):  
Law Enforcement ◽  
Criminal Code ◽  
Practical Significance ◽  
New Approach ◽  
Public Discussion ◽  
Current State ◽  
Criminal Offenses ◽  
Legal Technology ◽  
Logical Semantic

Purpose. The aim of the work is to consider the novelties of the legislative work, which provide for the concept and classification of criminal offenses in accordance with the current edition of the Criminal Code of Ukraine and the draft of the new Code developed by the working group and put up for public discussion. Point out the gaps in the current legislation and the need to revise individual rules of the project in this aspect. The methodology. The methodology includes a comprehensive analysis and generalization of the available scientific and theoretical material and the formulation of appropriate conclusions and recommendations. During the research, the following methods of scientific knowledge were used: terminological, logical-semantic, system-structural, logical-normative, comparative-historical. Results In the course of the study, it was determined that despite the fact that the amendments to the Criminal Code of Ukraine came into force in July of this year, their perfection, in terms of legal technology, raises many objections. On the basis of a comparative study, it was determined that the Draft Criminal Code of Ukraine needs further revision taking into account the opinions of experts in the process of public discussion. Originality. In the course of the study, it was established that the classification of criminal offenses proposed in the new edition of the Criminal Code of Ukraine does not stand up to criticism, since other elements of the classification appear in subsequent articles, which are not covered by the existing one. The draft Code, using a qualitatively new approach to this issue, retains the elements of the previous classification and has no practical significance in law enforcement. Practical significance. The results of the study can be used in law-making activities to improve the norms of the current Criminal Code, to classify criminal offenses, as well as to further improve the draft Criminal Code of Ukraine.

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