HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES最新文献

REAL-TIME MANAGEMENT OF CRITICAL IT-SYSTEMS BASED ON NEURAL NETWORK TECHNOLOGIES 基于神经网络技术的关键 IT 系统实时管理

HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES Pub Date : 2024-04-24 DOI: 10.52928/2070-1624-2024-42-1-18-25

A. Starovoytov, V. Krasnoproshin

引用次数: 0

SOFTWARE FOR AUTOMATION OF PERSONNEL PROFESSIONAL SELECTION AND EMPLOYEE ATTESTATION OF JSC «NAFTAN» BASED ON THE MODEL OF KEY COMPETENCIES 基于关键能力模型的 JSC "纳夫坦 "人员专业选拔和雇员证明自动化软件

HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES Pub Date : 2024-04-24 DOI: 10.52928/2070-1624-2024-42-1-2-7

O. Golubeva, V. Chertkov, K. Haryst, G. Peshkova

引用次数: 0

TECHNOLOGY OF VACUUM TIGHT SEALING OF MICROBOLOMETER PACKAGE 微测辐射热计封装的真空密封技术

HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES Pub Date : 2024-04-24 DOI: 10.52928/2070-1624-2024-42-1-47-52

A. Vidritsky, V. Lanin

引用次数: 0

ELECTRON IRRADIATED PI2610 POLYIMIDE FILMS ON MONOCRYSTALLINE SILICON 单晶硅上的电子辐照 pi2610 聚酰亚胺薄膜

HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES Pub Date : 2024-04-24 DOI: 10.52928/2070-1624-2024-42-1-41-46

S. Vabishchevich, N. Vabishchevich, D. Brinkevich, V. Prosolovich, M. Shulyakovskaya, V. Kolos, O. Zubova

{"title":"ELECTRON IRRADIATED PI2610 POLYIMIDE FILMS ON MONOCRYSTALLINE SILICON","authors":"S. Vabishchevich, N. Vabishchevich, D. Brinkevich, V. Prosolovich, M. Shulyakovskaya, V. Kolos, O. Zubova","doi":"10.52928/2070-1624-2024-42-1-41-46","DOIUrl":"https://doi.org/10.52928/2070-1624-2024-42-1-41-46","url":null,"abstract":"The optical and strength properties of electron-irradiated films of a polyimide composition (polyimide PI2610) \u0000deposited on the surface of single-crystalline silicon wafers of the KDB-10 grade by centrifugation were studied. \u0000Irradiation with electrons with an energy of 5 MeV was carried out on a linear accelerator U-003 in the dose \u0000range 1·1014 – 2·1015 cm–2. It has been experimentally established that at an irradiation dose of Ф = 1∙1014 cm–2, \u0000relaxation of elastic stress fields in the polyimide film is observed, which is expressed in modification of the shape \u0000of bands with maxima at 1349 and 1700 cm–1, caused by vibrations of the C–N–Cst bond and the C=O double bond \u0000imide ring. Polyimide PI-2610 films on silicon are quite stable when irradiated with electrons. A noticeable transformation \u0000of the ATR spectrum at a dose of 2∙1015 cm–2 was observed only in the region of stretching vibrations \u0000of C–H and O–H bonds, which is due to radiation-induced processes on by-products of polyimide synthesis and \u0000residual solvents. No noticeable decrease in the intensity of absorption bands caused by vibrations of the skeleton \u0000of the aromatic ring, imide ring, single and double C–C and C–O bonds, and imide C=O bonds was observed.","PeriodicalId":386243,"journal":{"name":"HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140661575","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}

引用次数: 0

SEMI-AUTOMATIC ALGORITHM FOR CONSTRUCTING THE CONTOUR OF AREA OBJECTS ON MULTISPECTRAL SATELLITE IMAGE 在多光谱卫星图像上构建区域物体轮廓的半自动算法

HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES Pub Date : 2024-04-24 DOI: 10.52928/2070-1624-2024-42-1-8-17

A. Nedzvedz, Bu Qing, A. Belotserkovsky

引用次数: 0

COMMON-MODE AND DIFFERENTIAL CHOKES 共模和差分扼流圈

HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES Pub Date : 2024-04-24 DOI: 10.52928/2070-1624-2024-42-1-53-59

D. Dauhiala, V. Tikhanovich, K. Babamuratov

引用次数: 0

ELECTRODYNAMIC RESPONSE OF ANISOTROPIC MEDIUM OVER HYDROCARBONS TO THE INFLUENCE OF PROBING SIGNALS 碳氢化合物上各向异性介质对探测信号影响的电动响应

HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES Pub Date : 2024-04-24 DOI: 10.52928/2070-1624-2024-42-1-69-75

V. Yanushkevich

{"title":"ELECTRODYNAMIC RESPONSE OF ANISOTROPIC MEDIUM OVER HYDROCARBONS \u0000TO THE INFLUENCE OF PROBING SIGNALS","authors":"V. Yanushkevich","doi":"10.52928/2070-1624-2024-42-1-69-75","DOIUrl":"https://doi.org/10.52928/2070-1624-2024-42-1-69-75","url":null,"abstract":"A study was carried out of the electrodynamic response of an anisotropic medium over hydrocarbons under \u0000the influence of probing signals for pulsed and dual-frequency modes with a predominance of high-frequency \u0000signals. The characteristics of the geological profile above hydrocarbon deposits were studied using pulse signals \u0000depending on the carrier frequency and period of the radio pulse. For the dual-frequency signal mode, the dependences \u0000of the material and phase components of the surface impedance of the studied medium over oil and gas fields \u0000were modeled depending on the amplitude and frequency ratios. It has been established that an increase in the \u0000dielectric constant of the geological profile above the deposits leads to a decrease in resonance frequencies and \u0000the values of the absolute component of surface impedance Ż11. The revealed manifestations of anomalous effects \u0000expand information about the characteristics of the environment above deposits under the influence of pulsed \u0000electromagnetic waves and are of practical interest for exploratory geophysics. The results obtained can be used \u0000for electrical prospecting when creating equipment for detecting oil and gas fields.","PeriodicalId":386243,"journal":{"name":"HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140661891","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}

引用次数: 0

PARAMETERS OF THE PERTURBED STATE OF THE DENDRITE TIP IN DEEPLY SUPERCOOLED NICKEL AND COPPER MELTS 深度过冷镍和铜熔体中枝晶尖端扰动状态的参数

HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES Pub Date : 2024-04-24 DOI: 10.52928/2070-1624-2024-42-1-60-68

O. Shablovsky, D. Kroll

{"title":"PARAMETERS OF THE PERTURBED STATE OF THE DENDRITE TIP \u0000IN DEEPLY SUPERCOOLED NICKEL AND COPPER MELTS","authors":"O. Shablovsky, D. Kroll","doi":"10.52928/2070-1624-2024-42-1-60-68","DOIUrl":"https://doi.org/10.52928/2070-1624-2024-42-1-60-68","url":null,"abstract":"The object of study is the morphological stability of the tip of a free dendrite in a supercooled melt of a pure \u0000substance. Areas of deep supercooling are considered: for nickel DT > 166 K, for copper – DT > 180 K. A distinctive \u0000feature of the processes being studied is the presence of two propagation velocities of small disturbances \u0000(velocities of “sound”). The dependences of these rates on the supercooling of the melt were determined. The periodic \u0000and coordinate-aperiodic modes of perturbation of the growth line have been studied in detail. For these stable \u0000regimes, the possibility of observing the same speed of the disturbance wave in two processes, differing from each \u0000other in the size of the spatial inhomogeneity of the background in front of the wave and the characteristic wave \u0000attenuation times, was discovered. It is shown that aperiodic instability appears if, after the passage of the wave \u0000front, the width of the growth line inhomogeneity zone decreases. The resonant excitation mode of the dendrite tip \u0000demonstrates important differences between the properties of the nickel and copper melts. First of all, this relates \u0000to the temperature dependences of the resonant frequency and the speed of a standing wave formed in the vicinity \u0000of the vertex. Numerical calculations are presented and graphic information is presented illustrating the patterns \u0000of growth of nickel and copper dendrites.","PeriodicalId":386243,"journal":{"name":"HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140662405","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}

引用次数: 0

POLYIMIDE FILMS IMPLANTED BY MANGANESE IONS 锰离子植入聚酰亚胺薄膜

HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES Pub Date : 2024-04-24 DOI: 10.52928/2070-1624-2024-42-1-34-40

S. Vabishchevich, N. Vabishchevich, D. Brinkevich, V. Prosolovich, M. Lukashevich, A. Yushchik, A. Kharchenko

{"title":"POLYIMIDE FILMS IMPLANTED BY MANGANESE IONS","authors":"S. Vabishchevich, N. Vabishchevich, D. Brinkevich, V. Prosolovich, M. Lukashevich, A. Yushchik, A. Kharchenko","doi":"10.52928/2070-1624-2024-42-1-34-40","DOIUrl":"https://doi.org/10.52928/2070-1624-2024-42-1-34-40","url":null,"abstract":"The optical and strength properties of Kapton polyimide films implanted with manganese ions with an energy \u0000of 40 keV and a dose of 5·1016 – 1·1017 cm–2 at a current density in the ion beam of 4 μA/cm2 have been studied. It has been experimentally established that during the process of ion implantation, modification of a thin nearsurface \u0000layer of polyimide occurs not only on the implanted side, but also on the reverse side of the film. Radiationstimulated \u0000modification of the back surface of the polyimide film leads to the formation of a surface layer up to 5 μm \u0000thick with increased microhardness. This may be due to the restructuring of metastable defects formed during \u0000the film manufacturing process and the simultaneous relaxation of elastic stresses in the surface layer. During \u0000the implantation process, a decrease in the intensity of absorption bands with maxima at ~ 2870 and ~ 2750 nm \u0000is observed, due to the evaporation of residual water under high vacuum conditions and reactions of residual solvent \u0000molecules, as well as radiation-induced processes on by-products of polyimide synthesis.","PeriodicalId":386243,"journal":{"name":"HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140663160","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}

引用次数: 0

CROWD VIDEO SEQUENCES PROCESSING METHODS FOR DETERMINING THE CROWD MOTION PATTERNS 确定人群运动模式的人群视频序列处理方法

HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES Pub Date : 2024-04-24 DOI: 10.52928/2070-1624-2024-42-1-26-33

S. Sholtanyuk, Q. Bu, A. Nedzved

引用次数: 0