Pub Date : 2023-04-18DOI: 10.52928/2070-1624-2023-40-1-8-16
I. Iliushyn, М. Kozhevnikov, A. Gospod
An optimization algorithm for a robotic technological complex for laser cutting is proposed, while restrictions are imposed on the angles in the joints of the robot and restrictions that take into account the orientation of the cutting technological tool. The developed algorithm also makes it possible to minimize the scope of the robot's movements when forming the laser's trajectory. The effectiveness of the proposed approach is evidenced by the results of testing in the environment of computer simulation of robotic technological complexes on the example of a robotic manipulator FANUC M-710iC/50 with 6 degrees of freedom.
{"title":"OPTIMIZATION ALGORITHM FOR A ROBOTIZED TECHNOLOGICAL COMPLEX FOR LASER CUTTING","authors":"I. Iliushyn, М. Kozhevnikov, A. Gospod","doi":"10.52928/2070-1624-2023-40-1-8-16","DOIUrl":"https://doi.org/10.52928/2070-1624-2023-40-1-8-16","url":null,"abstract":"An optimization algorithm for a robotic technological complex for laser cutting is proposed, while restrictions \u0000are imposed on the angles in the joints of the robot and restrictions that take into account the orientation \u0000of the cutting technological tool. The developed algorithm also makes it possible to minimize the scope of the robot's \u0000movements when forming the laser's trajectory. The effectiveness of the proposed approach is evidenced by the \u0000results of testing in the environment of computer simulation of robotic technological complexes on the example \u0000of a robotic manipulator FANUC M-710iC/50 with 6 degrees of freedom.","PeriodicalId":386243,"journal":{"name":"HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117230596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-18DOI: 10.52928/2070-1624-2023-40-1-84-91
S. Sitnik, O. Skoromnik, K. Vasilevich
{"title":"TWO-DIMENSIONAL INTEGRAL TRANSFORMATIONS WITH KUMMER FUNCTION \u0000AND HYPERGEOMETRIC GAUSSIAN FUNCTION IN KERNELS AS SPECIAL CASES \u0000OF TWO-DIMENSIONAL INTEGRAL G-TRANSFORMATION","authors":"S. Sitnik, O. Skoromnik, K. Vasilevich","doi":"10.52928/2070-1624-2023-40-1-84-91","DOIUrl":"https://doi.org/10.52928/2070-1624-2023-40-1-84-91","url":null,"abstract":"","PeriodicalId":386243,"journal":{"name":"HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124682088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.52928/2070-1624-2022-39-11-16-20
T. Kapach, M. Khamichonak, T. Maladzechkina
The control unit included in the laboratory stand for modeling thermal modes of radio-electronic means is presented. The main functions performed by the control unit of the laboratory stand are given, the features of its design are described. The rationale for choosing the Arduino IDE software environment for software development is given. A selection of libraries used to organize the interaction between the Arduino board and the components of the stand was carried out. The software for the control unit of the laboratory stand has been developed and reviewed in detail.
{"title":"THE DEVELOPMENT OF THE CONTROL UNIT OF A LABORATORY STAND FOR SIMULATION THE THERMAL MODS OF RADIO-ELECTRONIC DEVICES","authors":"T. Kapach, M. Khamichonak, T. Maladzechkina","doi":"10.52928/2070-1624-2022-39-11-16-20","DOIUrl":"https://doi.org/10.52928/2070-1624-2022-39-11-16-20","url":null,"abstract":"The control unit included in the laboratory stand for modeling thermal modes of radio-electronic means is presented. The main functions performed by the control unit of the laboratory stand are given, the features of its design are described. The rationale for choosing the Arduino IDE software environment for software development is given. A selection of libraries used to organize the interaction between the Arduino board and the components \u0000of the stand was carried out. The software for the control unit of the laboratory stand has been developed and reviewed in detail.","PeriodicalId":386243,"journal":{"name":"HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115732621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.52928/2070-1624-2022-39-11-30-39
S. Rudikov, V. Tsviatkou, A. Shkadarevich
The article proposes a dynamic range compression model for infrared (IR) images based on a tone mapping matrix, the elements of which relate the brightness levels of the original image with a wide dynamic range and the brightness levels of a non-linearly transformed image with a narrow dynamic range, and also indicate, depending on the variant of formation of this matrices on: a) loss of discrimination between adjacent pixels due to compression of the dynamic range; b) the level of non-linear compression distortions; c) ambiguity of tone mapping. Based on this model, interval indicators of the quality of compression of the dynamic range of infrared images are proposed, which allow estimating the potential distinguishing power, the real loss of discrimination between adjacent pixels after transformation, the magnitude of nonlinear compression distortions, the uniformity of the use of the dynamic range, and the ambiguity of tone mapping for the selected interval of the dynamic range. The proposed indicators improve the accuracy of assessing the quality of compression of the dynamic range of IR images by expanding the system of known indicators that evaluate the contrast, entropy, statistical naturalness of the converted images, and the structural accuracy of tone mapping.
{"title":"INTERVAL QUALITY INDICATORS OF THE DYNAMIC RANGE COMPRESSION OF INFRARED IMAGES ON THE BASIS OF A TONE MAPPING MATRIX","authors":"S. Rudikov, V. Tsviatkou, A. Shkadarevich","doi":"10.52928/2070-1624-2022-39-11-30-39","DOIUrl":"https://doi.org/10.52928/2070-1624-2022-39-11-30-39","url":null,"abstract":"The article proposes a dynamic range compression model for infrared (IR) images based on a tone mapping \u0000matrix, the elements of which relate the brightness levels of the original image with a wide dynamic range and \u0000the brightness levels of a non-linearly transformed image with a narrow dynamic range, and also indicate, depending \u0000on the variant of formation of this matrices on: a) loss of discrimination between adjacent pixels due \u0000to compression of the dynamic range; b) the level of non-linear compression distortions; c) ambiguity of tone \u0000mapping. Based on this model, interval indicators of the quality of compression of the dynamic range of infrared \u0000images are proposed, which allow estimating the potential distinguishing power, the real loss of discrimination \u0000between adjacent pixels after transformation, the magnitude of nonlinear compression distortions, the uniformity \u0000of the use of the dynamic range, and the ambiguity of tone mapping for the selected interval of the dynamic range. \u0000The proposed indicators improve the accuracy of assessing the quality of compression of the dynamic range of IR \u0000images by expanding the system of known indicators that evaluate the contrast, entropy, statistical naturalness \u0000of the converted images, and the structural accuracy of tone mapping.","PeriodicalId":386243,"journal":{"name":"HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123358168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.52928/2070-1624-2022-39-11-59-64
A. Kiyko, S. Vabishchevich, N. Vabishchevich, D. Brinkevich
In this paper, the radiological and economic issues of dismantling cyclotrons of various types, the accumulation of radionuclides in the details of the cyclotron itself, and the activation of the walls of the cyclotron bunker due to the capture of secondary neutrons are considered. As a result of (n,γ)-reactions on thermal neutrons, radionuclides 152Eu, 60Co, 46Sc are formed in the concrete of the cyclotron bunker with a half-life of 2,6 to 14 years and an activity of 0,1–11 kBq/kg. The maximum of their distribution usually lies at a depth of 10–15 cm. In the details of the cyclotron and the metal infrastructure of the bunker, the main radionuclides are 54Mn, 57Co, 65Zn. The analysis of the accumulation of long-lived radionuclides is of great importance for the design of new cyclotron facilities in order to ensure radiation safety and storage of radioactive waste and, as a result, to minimize the radiation exposure of personnel during the dismantling of the cyclotron.
{"title":"RADIOLOGICAL ASPECTS OF CYCLOTRON DECOMMISSIONING","authors":"A. Kiyko, S. Vabishchevich, N. Vabishchevich, D. Brinkevich","doi":"10.52928/2070-1624-2022-39-11-59-64","DOIUrl":"https://doi.org/10.52928/2070-1624-2022-39-11-59-64","url":null,"abstract":"In this paper, the radiological and economic issues of dismantling cyclotrons of various types, the accumulation \u0000of radionuclides in the details of the cyclotron itself, and the activation of the walls of the cyclotron bunker \u0000due to the capture of secondary neutrons are considered. As a result of (n,γ)-reactions on thermal neutrons, radionuclides \u0000152Eu, 60Co, 46Sc are formed in the concrete of the cyclotron bunker with a half-life of 2,6 to 14 years \u0000and an activity of 0,1–11 kBq/kg. The maximum of their distribution usually lies at a depth of 10–15 cm. In the \u0000details of the cyclotron and the metal infrastructure of the bunker, the main radionuclides are 54Mn, 57Co, 65Zn. \u0000The analysis of the accumulation of long-lived radionuclides is of great importance for the design of new cyclotron \u0000facilities in order to ensure radiation safety and storage of radioactive waste and, as a result, to minimize the \u0000radiation exposure of personnel during the dismantling of the cyclotron.","PeriodicalId":386243,"journal":{"name":"HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114324711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.52928/2070-1624-2022-39-11-117-123
S. Sitnik, O. Skoromnik, M. Papkovich
{"title":"TWO SPECIAL CASES OF TWO-DIMENSIONAL INTEGRAL G-TRANSFORMATION \u0000IN THE WEIGHTED SPACES OF SUMMABLE FUNCTIONS","authors":"S. Sitnik, O. Skoromnik, M. Papkovich","doi":"10.52928/2070-1624-2022-39-11-117-123","DOIUrl":"https://doi.org/10.52928/2070-1624-2022-39-11-117-123","url":null,"abstract":"","PeriodicalId":386243,"journal":{"name":"HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116436333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.52928/2070-1624-2022-39-11-21-29
V. Matskevich
The paper deals with a state-of-art problem, associated with neural networks training. Training algorithm (with special parallelization procedure) implementing the annealing method is proposed. The training efficiency is demonstrated by the example of a neural network architecture focused on parallel data processing. For the color image compression problem, it is shown that the proposed algorithm significantly outperforms gradient methods in terms of efficiency. The results obtained make it possible to improve the neural networks training quality in general, and can be used to solve a wide class of applied problems.
{"title":"NEURAL NETWORKS TRAINING BASED ON RANDOM SEARCH","authors":"V. Matskevich","doi":"10.52928/2070-1624-2022-39-11-21-29","DOIUrl":"https://doi.org/10.52928/2070-1624-2022-39-11-21-29","url":null,"abstract":"The paper deals with a state-of-art problem, associated with neural networks training. Training algorithm (with special parallelization procedure) implementing the annealing method is proposed. The training efficiency is demonstrated by the example of a neural network architecture focused on parallel data processing. For the color image compression problem, it is shown that the proposed algorithm significantly outperforms gradient \u0000methods in terms of efficiency. The results obtained make it possible to improve the neural networks training quality in general, and can be used to solve a wide class of applied problems.","PeriodicalId":386243,"journal":{"name":"HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122670550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.52928/2070-1624-2022-39-11-47-52
V. Bogush, V. Rodionova, O. Tanana
The paper presents a technique for experimental study of the electrodynamic characteristics of radio-absorbing material. The results of an experimental study of the reflection coefficient and the attenuation coefficient of samples of bulk materials of electromagnetic protection based on nanocarbon in the frequency range of 8–12 GHz are presented. Recommendations are given for the practical application of the materials under study: microwave absorbers can be used inside the working cavities of units and equipment to prevent multiple reflections of microwave waves, and allow solving the problem of shielding at high frequencies by absorbing scattered radiation.
{"title":"ELECTRODYNAMIC CHARACTERISTICS OF A VOLUME \u0000RADIO-ABSORBING MATERIAL BASED ON NANOCARBON","authors":"V. Bogush, V. Rodionova, O. Tanana","doi":"10.52928/2070-1624-2022-39-11-47-52","DOIUrl":"https://doi.org/10.52928/2070-1624-2022-39-11-47-52","url":null,"abstract":"The paper presents a technique for experimental study of the electrodynamic characteristics of radio-absorbing material. The results of an experimental study of the reflection coefficient and the attenuation coefficient of samples of bulk materials of electromagnetic protection based on nanocarbon in the frequency range of 8–12 GHz are presented. Recommendations are given for the practical application of the materials under study: microwave absorbers can be used inside the working cavities of units and equipment to prevent multiple reflections of microwave waves, and allow solving the problem of shielding at high frequencies by absorbing scattered radiation.","PeriodicalId":386243,"journal":{"name":"HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131575661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.52928/2070-1624-2022-39-11-2-7
E. Mikhnionak, A. Khizniak
The article discusses the procedure for applying the methodology developed by the authors for evaluating the effectiveness of technical means as part of an integrated system of state border protection to substantiate the composition of technical means in the design of new security boundaries.
{"title":"APPLICATION OF THE METHODOLOGY FOR EVALUATING THE EFFECTIVENESS OF TECHNICAL MEANS IN THE DESIGN OF NEW SECURITY FRONTIERS","authors":"E. Mikhnionak, A. Khizniak","doi":"10.52928/2070-1624-2022-39-11-2-7","DOIUrl":"https://doi.org/10.52928/2070-1624-2022-39-11-2-7","url":null,"abstract":"The article discusses the procedure for applying the methodology developed by the authors for evaluating the effectiveness of technical means as part of an integrated system of state border protection to substantiate the composition of technical means in the design of new security boundaries.","PeriodicalId":386243,"journal":{"name":"HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130121576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.52928/2070-1624-2022-39-11-53-58
S. Vabishchevich, N. Vabishchevich, D. Brinkevich, V. Prosolovich, V. Kolos, O. Zubova
Optical and strength properties of films of a polyimide composition (polyimide PI-2610) for creating a sacrificial layer deposited on the surface of single-crystal silicon plates of the KDB-10 brand by centrifugation are investigated. It has been established that they behave like elastoplastic materials. The true microhardness of polyimide PI-2610, measured at a load of 2 g, was ~0,5 GPa. The spectra of the disturbed total internal reflection (NPVO) of polyimide PI-2610 were compared with the spectra of the NPVO of pyrrole and kapton polyimide. In the spectrum of the polyimide PI-2610, there are bands of vibrations of the 5-membered ring and valence vibrations of the C–Nst and CO–Cst groups. The most intense band in the spectrum of NPVO (as in pyrrole) is the band of deformation vibrations C-H with a maximum at 734 cm-1. The band at ~1700 cm-1, caused by valence vibrations of the C=O double bond, has two closely spaced maxima at 1706 and 1692 cm-1, which indicates two variants of the force field around the C=O bond. The presence of hydroxyl O–H groups in the spectra of polyimide PI-2610 was detected due to the presence of residual water in the polyimide structure.
{"title":"OPTICAL AND STRENGTH PROPERTIES OF SACRIFICIAL LAYERS \u0000BASED ON POLYIMIDE FILMS","authors":"S. Vabishchevich, N. Vabishchevich, D. Brinkevich, V. Prosolovich, V. Kolos, O. Zubova","doi":"10.52928/2070-1624-2022-39-11-53-58","DOIUrl":"https://doi.org/10.52928/2070-1624-2022-39-11-53-58","url":null,"abstract":"Optical and strength properties of films of a polyimide composition (polyimide PI-2610) for creating a sacrificial \u0000layer deposited on the surface of single-crystal silicon plates of the KDB-10 brand by centrifugation are \u0000investigated. It has been established that they behave like elastoplastic materials. The true microhardness of polyimide \u0000PI-2610, measured at a load of 2 g, was ~0,5 GPa. The spectra of the disturbed total internal reflection \u0000(NPVO) of polyimide PI-2610 were compared with the spectra of the NPVO of pyrrole and kapton polyimide. \u0000In the spectrum of the polyimide PI-2610, there are bands of vibrations of the 5-membered ring and valence \u0000vibrations of the C–Nst and CO–Cst groups. The most intense band in the spectrum of NPVO (as in pyrrole) is the band \u0000of deformation vibrations C-H with a maximum at 734 cm-1. The band at ~1700 cm-1, caused by valence vibrations \u0000of the C=O double bond, has two closely spaced maxima at 1706 and 1692 cm-1, which indicates two variants \u0000of the force field around the C=O bond. The presence of hydroxyl O–H groups in the spectra of polyimide \u0000PI-2610 was detected due to the presence of residual water in the polyimide structure.","PeriodicalId":386243,"journal":{"name":"HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128643181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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