Critical Exponents in Percolation Model of Track Region

Numerous experiments on defect formation in insulators, metals, alloys, and amorphous semiconductors have shown that these materials are sensitive to track formation when they are bombarded by swift heavy ions (SHI). Detail understanding of the basic processes of materials modification by SHI will help to construct materials with preassigned properties. Tracks were examined like a chain of deal spherical regions; it was assumed that each incident ion creates one such chain. In this model, we assume that the track is formed randomly, but in that place of the ion path, where the energy value, which loses each ion to the unity of the way, is above some threshold value. As a result of irradiation the number of tracks will continue to grow, areas of the single tracks modified substance continue to overlap, form of modified matter becomes more complicated, creating branched structure. Based on the scaling hypothesis large-scale curve were constructed, critical exponents for this percolation model was established. Two such curves were evaluated: in the case of non-equiprobable distribution of tracks regions in depth with ratio of critical exponents ( / )s 0.68 and in the case with equiprobable distribution of tracks regions in depth, so-called model of continuous percolation with ratio of critical exponents ( / )e 0.41. Differences between critical exponents of this model and the continuous percolation model indicate that the dependence of the modified structure area on the dose and the angle related with the correlation between individual tracks. It results in next effect: angular dependence of the surface area of the branched structure has maximum value at certain «critical» angle of ions incidence. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/2491

Critical exponents in percolation model of track regions with different depth distribution

As a result of irradiation with Xe with E = 250 MeV in InP at room temperature [1] defects, similar to the "chain of pearls”, which are placed along the trajectory of the ions at depths ranging from 35 to 100 nm and from 7 to 10 microns have been identified. Such defects called tracks, and they can occur at different depths and have different shapes. Tracks were examined like a chain of deal spherical regions; it was assumed that each incident ion creates one such chain. In this model, we assume that the track is formed randomly, but in that place of the ion path, where the energy value, which loses each ion to the unity of the way, is above some threshold value. As a result of irradiation the number of tracks will continue to grow, areas of the single tracks modified substance continue to overlap, form of modificated matter becomes more complicated, creating branched structure. Percolation threshold, fraction of spanning cluster modified material for different doses and different distributions of track areas in depth were evaluated. Based on the scaling hypothesis large-scale curve were constructed, critical exponents for this percolation model were established. Calculated values of critical exponents were compared with the known values for the model of continuous percolation. Parameters of the percolation and critical exponents depend on the distribution of track areas in depth, which indicates the difference in the order parameters of the track structure obtained for different distributions in depth. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/2081

Claster model of the sensor computer visualisation

З використанням методу Делоне розроблено кластерну модель комп’ютерної візуалізації бездротової мережі сенсорів, на яких можливим є здійснення атак із подальшим їх підсиленням чи послабленням сигналу. Така модель дозволяє сформувати в конфігураційному двовимірному евклідовому просторі комп’ютера геометричну структуру у формі шестикутника, яка складається із обвідки внутрішнього шестикутника правильними трикутниками, вершинами яких є сигнальні точки, а сторонами – функціональні зв’язки між сигнальними точками.Using Delaunay method and methods of the fracture structure plotting the claster model of the computer visualization of the wireless sensor net has been developed. Such model allows constructing geometric hexagonal structure on the configuration 2D Euclid space, which consists of the regular triangle outlines, of the internal hexagonal, the vertex of which are points and the sides are the functional connection between signal points. She claster, built up in such a way, consists of 18 signal points, which are connected between each other by 36 functional connections of the same length. Signal points in the claster are connected with other points by not less than three functional connections. It allows obtaining information from each of them and visualizes the sensor operation failure. To provide visual computer interpretation of the possible attacks on the sensor, the images of which in the configuration space are signal points from different classes of their fracture, the properties of four-point com-plex are used, the possibility to find the square of its volume in particular, using Keli-Menger determinant, the elements of which are the squares of the six distances between four-point of simplex. This index for simplexes, which are expressed by the flat geometric shapes, will equal 0. Four-point triangle pyramid shaped simplex will be found by the Keli-Menger determinant, which is different from zero. Attacks on sensors cause the claster symmetry failure, which results in creation of the four-point sim-plexes in the form of three geometric shapes: simplexes, which are not connected directly which the functional connections, which define the level of the attack on the sensor in the configuration space being of the plate rhomb shape; simplexes, which have two functional connections, which change their length during the attack on the sensor, transforming into the quadrangle, the shape of which can be presented by neither a rhomb nor a quadrangle; simplexes with three functional connections, the change of length of which is caused by the attack on the sensor and are transformed into the triangle pyramid. Thus, the attack on the sensor causes: firstly geometric shape of the main part of the simplex, which fill the claster and their edges are not changed functional connections, is unchanged; secondly, transformation of two sensors with two changed functional connections into quadrangle figure of 2D configuration space; thirdly, local deflection of the configuration space to the 3D with the epicenter in the signal point, which is treated as the attacked sensor resulted from the transformation from one to three simplexes into the 3D triangle pyramid. Under such deflection of the configuration space the high of the triangle pyramid, beside the accepted in-to computer the noise signal parameters and the sensor, will define the attacked signal parameters as well. That is why local deflection of the configuration space makes it possible to find the attacked sensor, and the analytical definition of the high – to valuate the attack value on the sensor

The structure and mechanical properties of multilayer nanocrystalline TiN/ZrN coatings obtained by vacuum-arc deposition

TiN/ZrN multilayered condensates on BK-8 carbide tips substrates (62 HRC) were produced by the vacuumarc deposition technique, using Ti and Zr plasma flows in reactive nitrogen gas medium with working pressure of 6.6·10–1 Pa. The TiN/ZrN multilayered condensates consist of TiN and ZrN sublayers, which have a thickness of ~100 nm, controlled by the processing parameters of the used deposition technique. The obtained coatings have hardness of 45 GPa and Young’s modulus of 320 GPa. The obtained results show that mechanical properties of such multilayered composites are considerably improved in comparison to those for the single-component coatings, TiN and ZrN. The dependence of hardness and Young’s modulus of the composites on sublayer thickness within a range of 100 nm was determined. The investigated structure and improved mechanical properties of the TiN/ZrN multilayered condensates would be very good platform for finding their industrial application, such as hard coatings with different purposes

Ultrasonographic characteristics of morphometric and hemodynamic parameters of the liver and spleen in pediatric patients with chronic viral hepatitis B and C

Chronic HBV- and HCV-infection in pediatric patients had already became an important social and medical problem due to increasing of its prevalence, specific latent course of these infections and forming of progression process which leads to development of liver fibrosis, cirrhosis and cancer with specific influence to different indexes which shows us the decreasing of quality of life of those patients. Therefore, it is necessary to study the basic risk factors for liver fibrosis progression and ways of their diagnosis, including non-invasive ultrasound techniques, in pediatric patients with chronic HBV- and HCV-infection, as their modification may improve the influence for prognosis and clinical consequences. This article considers the changes of the main ultrasound parameters of the liver and spleen in pediatric patients with chronic HBV- and HCV-infection and ability to use US Grayscale (Y.Davoudi, 2015) for management of pediatric patients

Chronic viral hepatitis B and C in pediatric patients: possibilities of ultrasound techniques for patients’ management

Chronic viral hepatitis B and C have already become one of the medical and social problems of modern hepatology and paediatrics due to their high prevalence and ability to transform liver parenchyma and form additional complications. Nowadays, it is important to assess and examine patients by ultrasound techniques to estimate changes in morphometric, hemodynamic, and echoacoustic characteristics of the liver in patients with viral hepatitis B and C. The aim: to estimate ultrasound morphometric parameters and hemodynamic indexes, morphological deviations of the liver and spleen in pediatric patients with chronic viral hepatitis B and C by implementing of the system as Y. Davoudi diagnostic scale (2015) and analysis of echo-acoustic patterns. Materials and methods. 34 children were examined. 19 children with chronic viral hepatitis B and C formed group I, while 15 almost healthy children formed group II. All examined patients underwent collecting of anamnesis, general clinical examination, determination of the degree of liver fibrosis by non-invasive method (Fibrotest or fibroelastometry) and ultrasound examination of the abdominal cavity organs with the possibility of Doppler scanning. Differences at p<0.05 were considered statistically significant. Results. Obtained data showed that in patients of group, I index of Y. Davoudi grayscale was higher (2,6±0,26 U) compared with patients of group II (1,4±0,32 U) (p<0,01). Systolic blood flow velocities in the portal vein and the splenic vein were decreased in patients of group I (15,59±0,4 cm/s; 15,7±0,8 cm/s) compared with group II (17,68±0,8 cm/s; 17,54±0,42 cm/s) (p<0,05), resistance index in the hepatic artery was increased in patients of group I (0,78±0,02 IU) compared with patients of II group (0,68±0,04 IU) (p<0,05). Histogram indexes of the liver and liver-kidney region were higher in patients of group I (p<0,001). Сonclusions. Y.Davoudi diagnostic scale, hemodynamics parameters of the portal, splenic and hepatic vessels, echoacoustic patterns and other indexes could be prognostic factors which will indicate liver fibrosis progression in patients with chronic viral hepatitis B and C. The analysis of the obtained data showed that deviations in morphometric, echoacoustic and Doppler indexes of liver and spleen in paediatric patients with chronic viral hepatitis B and C were more clinically significant compared with almost healthy children and could be taken into account as liver fibrosis predictor

Critical exponents in percolation model of track region

Numerous experiments on defect formation in insulators, metals, alloys, and amorphous semiconductors have shown that these materials are sensitive to track formation when they are bombarded by swift heavy ions (SHI). Detail understanding of the basic processes of materials modification by SHI will help to construct materials with preassigned properties. Tracks were examined like a chain of deal spherical regions; it was assumed that each incident ion creates one such chain. In this model, we assume that the track is formed randomly, but in that place of the ion path, where the energy value, which loses each ion to the unity of the way, is above some threshold value. As a result of irradiation the number of tracks will continue to grow, areas of the single tracks modified substance continue to overlap, form of modified matter becomes more complicated, creating branched structure. Based on the scaling hypothesis large-scale curve were constructed, critical exponents for this percolation model was established. Two such curves were evaluated: in the case of non-equiprobable distribution of tracks regions in depth with ratio of critical exponents ( / )s 0.68 and in the case with equiprobable distribution of tracks regions in depth, so-called model of continuous percolation with ratio of critical exponents ( / )e 0.41. Differences between critical exponents of this model and the continuous percolation model indicate that the dependence of the modified structure area on the dose and the angle related with the correlation between individual tracks. It results in next effect: angular dependence of the surface area of the branched structure has maximum value at certain «critical» angle of ions incidence.http://jnep.sumdu.edu.ua/am2013ai201

MEASURING OF INTELLECTUAL POTENTIAL INFLUENCE ON THE ECONOMY OF UKRAINE

Methods of the techno-globalism parameters use in the analysis of the state economy are described in the article. Integrated model of the intellectual potential measurement is presented. The dynamics of the economic development macro indicators is described

КРЕДИТУВАННЯ СІЛЬСЬКОГО ГОСПОДАРСТВА УКРАЇНИ: АНАЛІЗ ДИНАМІКИ

The&nbsp;issue&nbsp;of&nbsp;bank&nbsp;crediting&nbsp;of&nbsp;agriculture&nbsp;enterprises&nbsp;in Ukraine&nbsp;is&nbsp;investigated&nbsp;in&nbsp;the&nbsp;article. The&nbsp;analysis&nbsp;of&nbsp;modern&nbsp;domestic scientists’ opinions of the mentioned&nbsp;issue is&nbsp;carried&nbsp;out. Bank&nbsp;crediting&nbsp;as&nbsp;an&nbsp;important&nbsp;financing&nbsp;source&nbsp;of&nbsp;agriculture activity is&nbsp;considered. The&nbsp;analysis&nbsp;of&nbsp;the&nbsp;structure&nbsp;of loan issuing&nbsp;to&nbsp;non–financial corporations&nbsp;in&nbsp;Ukraine&nbsp;by&nbsp;types&nbsp;of economic&nbsp;activity is carried out. The conclusion as for the fact that during&nbsp;the&nbsp;investigated&nbsp;period&nbsp;the tendency&nbsp;to&nbsp;the&nbsp;increase&nbsp;inboth&nbsp;credit size&nbsp;supplied to the agriculture&nbsp;and&nbsp;the share&nbsp;of&nbsp;these&nbsp;credits&nbsp;in&nbsp;the general&nbsp;volume&nbsp;supplied to&nbsp;non–financial corporations is drawn. The&nbsp;econometric&nbsp;analysis&nbsp;of&nbsp;credit supply dynamics&nbsp;to&nbsp;agriculture,&nbsp;hunting&nbsp;and&nbsp;fish–farming&nbsp;corporations is conducted. The&nbsp;trend&nbsp;models&nbsp;of&nbsp;linear,&nbsp;degree&nbsp;and parabolic&nbsp;types&nbsp;are&nbsp;built&nbsp;and&nbsp;the&nbsp;statistical&nbsp;estimation&nbsp;of&nbsp;the results&nbsp;is&nbsp;carried out. Given&nbsp;undertaken&nbsp;studies,&nbsp;the current&nbsp;problems&nbsp;of financing&nbsp;agriculture&nbsp;enterprises’&nbsp;activity in&nbsp;Ukraine&nbsp;taking into consideration&nbsp;bank&nbsp;crediting are&nbsp;found out. The relationship&nbsp;between&nbsp;the&nbsp;dynamics&nbsp;of&nbsp;credit share issued for&nbsp;the agriculturalenterprise development&nbsp;and&nbsp;the&nbsp;economic&nbsp;and&nbsp;political&nbsp;situation&nbsp;in&nbsp;Ukraine&nbsp;is&nbsp;indicated. The suggestions&nbsp;on the&nbsp;actuality&nbsp;and importance&nbsp;of&nbsp;issuing&nbsp;bank&nbsp;credits&nbsp;for&nbsp;financing&nbsp;the agriculture&nbsp;in&nbsp;Ukraine are offered. The&nbsp;increase&nbsp;in the share&nbsp;of&nbsp;state’sparticipation&nbsp;in financing&nbsp;the&nbsp;activity&nbsp;of&nbsp;enterprises&nbsp;of&nbsp;the&nbsp;agro–industrial&nbsp;complex of&nbsp;Ukraine,&nbsp;in&nbsp;particular&nbsp;providing&nbsp;repayment&nbsp;of&nbsp;bank credits&nbsp;is&nbsp;stressed. &nbsp;В статье исследованы вопросы предоставления банковских кредитов предприятиям сельского хозяйства Украины. Осуществлен анализ взглядов на определенную проблему с позиции современных отечественных ученых. Рассмотрено банковское кредитование как важный источник финансирования деятельности сельского хозяйства. Проведен анализ структуры предоставления кредитов нефинансовым корпорациям Украины в разрезе видов экономической деятельности. Сделан вывод о том, что в течение исследуемого периода была характерна тенденция к росту как размера кредитов, предоставленных в сельское хозяйство, так и доли этих кредитов в общем объеме кредитов, предоставленных нефинансовым корпорациям. Проведен эконометрический анализ динамики предоставления кредитов корпорациям сельского хозяйства, охоты и рыбоводства. С этой целью построены модели тренда линейного, степенного и параболического типов и рассчитана статистическая оценка полученных результатов.Исходя из проведенных исследований, выявлены имеющиеся проблемы финансирования деятельности предприятий сельского хозяйства в Украине, учитывая банковское кредитование. Указано на связь между динамикой доли кредитов, предоставленных для развития сельскохозяйственного предпринимательства и экономической и политической ситуацией в Украине. Приведены предложения по актуальности и важности предоставления банковских кредитов для финансирования сельского хозяйства в Украине и увеличение доли государственного участия в финансировании деятельности предприятий агропромышленного комплекса Украины, в частности обеспечение погашения банковских кредитов. У статті досліджено питання надання банківських кредитів підприємствам сільського господарства України. Здійснено аналіз поглядів на визначену проблему з позиції сучасних вітчизняних учених. Розглянуто банківське кредитування як важливе джерело фінансування діяльності сільського господарства.&nbsp;Проведено аналіз структури надання кредитів нефінансовим корпораціям України у розрізі видів економічної діяльності. Зроблено висновок про те, що протягом досліджуваного періоду була характерною тенденція до зростання як розміру кредитів, наданих в сільське господарство, так і частки цих кредитів у загальному обсязі кредитів, наданих нефінансовим корпораціям. Проведено економетричний аналіз динаміки надання кредитів корпораціям сільського господарства, мисливства і рибництва. З цією метою побудовано моделі тренду лінійного, степеневого і параболічного типів та розраховано статистичну оцінку отриманих результатів.&nbsp;Виходячи з проведених досліджень, виявлено наявні проблеми фінансування діяльності підприємств сільського господарства в Україні з огляду банківського кредитування.&nbsp;Вказано на зв’язок між динамікою частки кредитів, наданих для розвитку сільськогосподарського підприємництва та економічною і політичною ситуацією в Україні.&nbsp;Наведено пропозиції щодо актуальності і важливості надання банківських кредитів для фінансування сільського господарства в Україні. Наголошено на збільшенні частки державної участі у фінансуванні діяльності підприємств агропромислового комплексу України, зокрема забезпечення погашення банківських кредитів. &nbsp

Development of a concept for deploying a cyber range

Розробка концепції розгортання кіберполігону // Кваліфікаційна робота ОР «Бакалавр» // Демчишин Максим Миколайович// Тернопільський національний технічний університет імені Івана Пулюя, факультет комп’ютерно-інформаційних систем і програмної інженерії, кафедра кібербезпеки, група СБс-41 // Тернопіль, 2023Метою роботи є огляд та опис архітектури та принципів розгортання кіберполігону на базі кластеру віртуалізації, формування завдань для відпрацювання у кіберполігоні, а також розбір сучасних загроз, котрі будуть розглянуті на практиці у кіберполігоні. Об’єктом дослідження є процес розгортання кіберполігону. Предметом дослідження є розробка концепції розгортання кіберполігону. Результатами дослідження є засоби, методи, заходи що до збільшення кваліфікації студентів, фахівців, експертів та керівників в сфері інформаційних технологій, інформаційної безпеки та систем промислової автоматизації. Отримані результати можуть бути впроваджені в нормативну базу університету з метою покращення рівня його рейтингу. Проведено аналіз інфраструктури кіберполігону на базі кластеру віртуалізації за технологією Proxmox VE, функціональні можливості технології Proxmox VE. Проведена оцінка загроз інформаційній безпеці і наведені заходи по забезпечення безпеки інформаційної системи університету, а також проведена оцінка економічної складової заходів забезпечення інформаційної безпеки.The purpose of the master’s thesis is to review and describe the architecture and principles of cyber polygon deployment based on the virtualization cluster, the formation of tasks for practice in cyberpolygon, as well as analysis of current threats that will be considered in practice in cyber polygon. The object of study is the process of deploying a cyber polygon. The subject of research is the development of the concept of cyber polygon. The results of the study are tools, methods, measures to improve the skills of students, professionals, experts and managers in the field of information technology, information security and industrial automation systems. Obtained results can be incorporated into the university's regulatory framework in order to improve its rating. The analysis of the cyberpolygon infrastructure on the basis of the virtualization cluster according to Proxmox VE technology, the functionality of Proxmox VE technology is carried out. Research of assessment of threats to information security and measures to ensure the security of the information system of the university, as well as assessment of the economic component of measures to ensure information security.ВСТУП ... 7 РОЗДІЛ 1. АНАЛІЗ ВИМОГ ДО РОЗГОРТАННЯ КІБЕРПОЛІГОНУ ... 8 1.1 Аналіз принципів розгортання кіберполігону ... 8 1.2 Оцінка основних функцій кіберполігону ... 9 1.3 Основні технічні вимоги до апаратного обладнання, програмних застосунків ... 21 РОЗДІЛ 2. РОЗРОБКА КОНЦЕПЦІЇ РОЗГОРТАННЯ КІБЕРПОЛІГОНУ ... 24 2.1 Аналіз інфраструктури кіберполігону ... 24 2.2 Аналіз сучасних загроз в складових безпеки інформації ... 28 2.3 Принципи формування задач, вихідної інфраструктури до відпрацювання у кіберполігоні ... 37 2.4 Висновки до розділу 2 ... 40 РОЗДІЛ 3. РОЗГОРТАННЯ КІБЕРПОЛІГОНУ В УНІВЕРСИТЕТІ ... 41 3.1 Розгортання елементів інфраструктури кіберполігону університету ... 41 3.2 Розробка рекомендацій задач, які відпрацьовуються у кіберполігоні ... 44 4 БЕЗПЕКА ЖИТТЄДІЯЛЬНОСТІ, ОСНОВИ ОХОРОНИ ПРАЦІ ... 57 4.1 Організація служби охорони праці на підприємстві ... 57 4.2 Психофізіологічне розвантаження для працівників ... 59 ВИСНОВКИ ... 61 СПИСОК ВИКОРИСТАНИХ ДЖЕРЕЛ ... 6