JOURNAL SCIENTIFIC AND APPLIED RESEARCH
https://jsar.ftn.shu.bg/index.php/jsar
<p>The journal publishes scientific information and articles which present new and unpublished results from research in the spheres of the mathematical, physical, chemical, natural, humanitarian, social, medical, Earth, forest and agricultural sciences. Journal Scientific and Applied Research use the following types of peer review:<br />- Editorial review;<br />- Peer review;<br />- Blind peer review; <br />- Double blind peer;<br />- Open peer review.</p> <p>After their acceptance, the article is published in the refereed JOURNAL SCIENTIFIC AND APPLIED RESEARCH, which is an academic journal licensed in EBSCO, USA. <strong>There are NO publication or processing fees for the authors approved to publish their research in JSAR (Journal Scientific and Applied Research).</strong></p> <p><strong>ISSN 1314-6289 (Print)</strong></p> <p><strong>ISSN 2815-4622 (Online)</strong></p> <p> </p> <p><strong>Abstracted and Indexed in</strong>:</p> <p><strong><a href="https://www.ebsco.com/m/ee/Marketing/titleLists/a9h-journals.htm" target="_blank" rel="noopener">EBSCO, USA,</a> - <a href="https://drive.google.com/file/d/1wJSL0cBLhqmeZ9qbu1qfCr2wbh8Ol0vn/view?usp=sharing" target="_blank" rel="noopener">EBSCOHOST1</a>, <a href="https://drive.google.com/file/d/17sPNXv8ei1EKBDORzbY80MLLzMK7TiL7/view?usp=sharing" target="_blank" rel="noopener">EBSCOHOST2</a>, <a href="https://drive.google.com/file/d/10h4iVRQxGFAER1Yuvxrc9LTRMMGR76gQ/view?usp=sharing" target="_blank" rel="noopener">EBSCOHOST3</a></strong></p> <p><strong><a href="https://portal.issn.org/resource/ISSN/2815-4622" target="_blank" rel="noopener">ROAD - Directory of Open Access Scholarly Resources - The International Centre for the registration of serial publications (CIEPS), also known as the ISSN International Centre </a></strong></p> <p><strong><a href="https://search.crossref.org/?q=1314-6289" target="_blank" rel="noopener">Crossref member</a></strong></p> <p><strong><a href="https://nrs.nacid.bg/register/search" target="_blank" rel="noopener">National Centre for Information and Documentation (Bulgaria)</a></strong></p> <p><a href="https://scholar.google.com/scholar?hl=bg&as_sdt=0%2C5&q=journal+scientific+and+applied+research&btnG=" target="_blank" rel="noopener"><strong>Google Scholar</strong></a></p> <p><a href="https://www.researchgate.net/search.Search.html?query=Journal+Scientific+and+Applied+Research&type=publication" target="_blank" rel="noopener"><strong>ResearchGate</strong></a></p> <p><strong><a href="https://www.mendeley.com/search/?amp%3Bpage=1&amp%3BpublishedIn=Journal%20Scientific%20and%20Applied%20Research&amp%3Bquery=boyanov&amp%3BsortBy=relevance&page=1&query=petar%20and%20boyanov&sortBy=relevance" target="_blank" rel="noopener">Mendeley</a></strong></p>Konstantin Preslavsky University, Faculty of Technical Sciences - Shumen, Bulgariaen-USJOURNAL SCIENTIFIC AND APPLIED RESEARCH1314-6289MIGRATION SECURITY AS A COMPONENT OF CORPORATE SECURITY
https://jsar.ftn.shu.bg/index.php/jsar/article/view/416
<p>A new element has been added to the components of corporate security - migration security. The proposed new author's terms for our scientific community - "migration security" will facilitate future research in the field of the impact of migration processes on the security of regions and business organizations.</p>Tsvetelina MetodievaIliana Simeonova
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-1327116316910.46687/jsar.v27i1.416ANALYSIS OF THE OUTPUT VOLTAGE SPEKTRUM OF A PARAMETRIC MICROWAVE CONVERTER
https://jsar.ftn.shu.bg/index.php/jsar/article/view/415
<p>In this scientific paper, we have considered a method for determining the complex reflection coefficient based on spectral analysis of the output voltage of a parametric microwave converter.</p>Dragomir Vasilev
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-1327115716210.46687/jsar.v27i1.415REVEALING ANOMALIES BY NETWORK PACKET FLOODING ON BUILT FTP AND OPENSSH SERVERS IN CONTROLLED LAB ENVIRONMENT
https://jsar.ftn.shu.bg/index.php/jsar/article/view/414
<p>This scientific paper investigates the effects of network packet flooding on FTP (port 21) and SSH (port 22) protocols, aiming to reveal and document anomalies in server behavior under high-load conditions. By simulating packet flooding in a controlled lab environment, an analysis on vulnerabilities and anomalies unique to each protocol is conducted in order to the improve defensive capabilities. The results provide guidance on best practices to secure FTP and OpenSSH services against malicious traffic, such as Distributed Denial of Service (DDoS) attacks, supporting wider network security strategies.</p>Petar Boyanov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-1327113815610.46687/jsar.v27i1.414PRACTICAL APPLICATIONS OF HASH FUNCTIONS MD5, SHA-1, AND SHA-256 USING VARIOUS SOFTWARE TOOLS TO VERIFY THE INTEGRITY OF FILES
https://jsar.ftn.shu.bg/index.php/jsar/article/view/413
<p>In this scientific paper hash functions such as MD5, SHA-1, and SHA-256 are widely utilized in the field of cryptography to verify file integrity, confirming that files remain unaltered and free from corruption. The practical application of the hash functions MD5, SHA-1, AND SHA-256 through five widely used software tools: 7z, PowerShell, BullZip MD5 Calculator, HashCalc and CrypTool 1.4.40 is made. The analysis focuses on each tool's effectiveness in calculating and comparing hash values, emphasizing their strengths and weaknesses in ensuring data integrity. By investigating the functionality and applications of each tool, this scientific study provides important perspectives on the practical significance of MD5, SHA-1, and SHA-256 for maintaining the authenticity and reliability of digital files.</p>Petar Boyanov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-1327112013710.46687/jsar.v27i1.413COMMUNICATION MODULES FOR DATA TRANSMISSION IN PHOTOVOLTAIC PERFORMANCE MONITORING AND ANALYSIS SYSTEMS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/412
<p>The paper discusses the wireless communication modules used for monitoring photovoltaic systems-ZigBee, Wi-Fi, Bluetooth, GSM and LoRa. The aim is to compare the main features, advantages and disadvantages of each of these technologies. The analysis identifies the need for reliability, low power consumption and secure data transmission in the design of the systems.</p>Iliyana Ivanova
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-1327111311910.46687/jsar.v27i1.412USE OF A CHATBOT IN AUTOMATED INFORMATION SYSTEM FOR PROCESS MANAGEMENT IN EDUCATION
https://jsar.ftn.shu.bg/index.php/jsar/article/view/411
<p>This scientific paper presents a role-based aspect of chatbots in the educational field, covering certain of their advantages and disadvantages. Future trends in their development are presented. The use and implementation of chatbots in an automated information system for process management in the educational field is discussed.</p>Desislava IvanovaValentin Atanasov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-1327110511210.46687/jsar.v27i1.411AN APPROACH OF DOM RECORD MANAGEMENT COMPONENT UI CREATION
https://jsar.ftn.shu.bg/index.php/jsar/article/view/410
<p>This paper presents an approach of Document Object Model database record management component user interface (UI) creation. Mainstream of UI development approaches concentrates in few directions, omitting holistic view on the fundamental database operations. The proposed solution uses method lay on of standard clauses adopted by the ECMA Script edition sixth and above. The program logic for the UI component was built with the intention - The existing functionality of such UI component to be extended and complemented.</p>Valentin Atanasov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-132719710410.46687/jsar.v27i1.410GEOGRAPHICAL INFORMATION SYSTEMS AND THEIR APPLICATION IN VARIOUS FIELDS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/409
<p>Geographic information systems are powerful tools for collecting, analyzing and visualizing geographic data to support decision making in a variety of activities. The aim of this paper is to present the basic principles of GIS and their applications in various fields ranging from ecology and urban planning to health and security. GIS plays an important role in the modern world, enabling better understanding and management of spatial processes and phenomena.</p>Donika Dimanova
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-13271909610.46687/jsar.v27i1.409REAL-TIME GIS FOR MONITORING AND SECURITY
https://jsar.ftn.shu.bg/index.php/jsar/article/view/408
<p>Applications of geographic information systems in the security domain are diverse and cover various aspects such as crisis prevention and management, public safety, national security, critical infrastructure protection and military applications. Real-time GIS is essential for effective emergency response and management because it provides accurate information on the location and dynamics of events.</p>Donika DimanovaZdravko Y. Kuzmanov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-13271838910.46687/jsar.v27i1.408ABOUT THE GUARANTEED INTRADEPARTMENTAL RESERVE IN THE CONTEXT OF INTRALOGISTICS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/407
<p>In general, the current paper implies the conclusion that the determination of the impact of randomly occurring pauses in the work of the production unit with continuous technological process depends on the created intradepartmental guaranteed reserve.</p>Svetlozar Stoyanov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-13271778210.46687/jsar.v27i1.407ANALYSIS OF THE CHARACTERISTICS OF AUTOMOTIVE MASS AIR FLOW SENSORS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/406
<p>An analysis of the characteristics of automotive mass air flow sensors is made. A test system has been developed to study the sensors. The measurement data is processed with MATLAB using curve fitting.</p>Tihomir TrifonovHristo Hadjiivanov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-13271677610.46687/jsar.v27i1.406APPLICATION OF HEURISTIC ALGORITHMS IN LOGISTICS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/405
<p>The paper deals with algorithms for solving logistics problems. It describes types of heuristic algorithms focusing on their strengths and weaknesses. Incorporating the advantages and disadvantages of heuristic algorithms, it offers feasible solutions.</p>Andrey Bogdanov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-13271606610.46687/jsar.v27i1.405PEDAGOGICAL CHALLENGES IN TEACHING FOLKLORE TO CHILDREN IN NON-FORMAL EDUCATION: A CASE STUDY FROM BULGARIA
https://jsar.ftn.shu.bg/index.php/jsar/article/view/404
<p>This study analyzes data from a survey conducted among non-formal education teachers engaged in teaching folklore to children. It investigates effective practices and challenges these educators encounter in the transmission of folklore traditions to contemporary youth. Drawing on the collected data, the research proposes targeted strategies to enhance and optimize the teaching process, addressing the specific needs of both students and educators within this cultural and pedagogical context.</p>Stefka Budakova
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-13271375910.46687/jsar.v27i1.404GNSS TECHNOLOGY FOR RESEARCH OF DEFORMATIONS OF HYDROTECHNICAL INSTALLATIONS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/403
<p>Hydro technical installations are subject to a list of temporary and constant factors, such as Natural, Physical, Tectonic, Anthropogenic and other, which lead to their deformation and destruction. Study, exploration and forecast of deformations, can save us big. In this article has been researched the GNSS capability of obtaining the necessary data for building a model and reading or predicting deformations. GNSS has been used for monitoring structural deformation and deflection for more than a 30 years now. Detailed procedures for field data collection, data analysis and visualisation, generation of reliable analytical model, model updating and prediction for structural operational condition are also recommended.</p>Stefan Dobrev
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-13271303610.46687/jsar.v27i1.403MAP OF THE EARTH MASSES - ROLE IN THE INVESTMENT PROJECT
https://jsar.ftn.shu.bg/index.php/jsar/article/view/402
<p>Map of the earth masses shows the essence of the vertical planning project by visualizing the anticipated displacement of the land masses within the boundaries of the property. It is the official document through which the designer can determine the amount of land masses for the purpose of their valuation [5]. The article examines the role of the cartogram and modern practices regarding its creation and use in the investment process.</p>Ivan Ivanov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-13271222910.46687/jsar.v27i1.402INVESTIGATING THE CONNECTION BETWEEN INVESTMENT INTENTIONS AND LAND STATUS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/401
<p>The subject of investigating the connection between investment intentions and land status is analyzing the main procedures for preparation, approval and implementation of development plans with the objective of changing the purpose designation of agricultural land into urbanized territory. By using a project for a Detailed Development Plans – Plan for Regulation and Construction, an examination is performed of the processes related to the preparation and coordination of the plan, including the change of purpose designation of the agricultural land into land for non-agricultural uses, in accordance with the legislation.</p>Simona AtanasovaKrasimira Kirilova
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-13271122110.46687/jsar.v27i1.401CREATION OF SPECIALIZED MAPS AND REGISTERS OF OBJECTS UNDER ARTICLE 6, PARAGRAPHS 4 AND 5 OF THE LAW ON THE DEVELOPMENT OF THE BLACK SEA COAST
https://jsar.ftn.shu.bg/index.php/jsar/article/view/400
<p>The specialized maps and registers are made for the purpose of documenting the spatial position and technical characteristics of the sites under Article 6, paragraphs 4 and 5 of the Law on the Organization of the Black Sea Coast. They also provide information for the development of development schemes and general and detailed development plans, protection of the natural landscape and the sea coast from erosion, abrasion and landslide processes, protection of the cultural and historical heritage, development of investment projects, awarding of concession or renting out sea beaches and solving other tasks.</p>Mirem Niyazi-Yusuf
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-1327151110.46687/jsar.v27i1.400Content of vol. 27, 2024, Journal Scientific and Applied Research
https://jsar.ftn.shu.bg/index.php/jsar/article/view/399
<p>Content of vol. 27, 2024, Journal Scientific and Applied Research</p>Petar Boyanov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-132713410.46687/jsar.v27i1.399 International Editorial Board of vol. 27 No. 1 (2024): Journal Scientific and Applied Research
https://jsar.ftn.shu.bg/index.php/jsar/article/view/398
<p>International Editorial Board of vol. 27 No. 1 (2024): Journal Scientific and Applied Research</p>Petar Boyanov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-132024-11-132712210.46687/jsar.v27i1.398MODEL FOR ADMINISTRATIVE SECURITY MANAGEMENT IN A MUNICIPALITY
https://jsar.ftn.shu.bg/index.php/jsar/article/view/397
<p>Administrative security is critical to the effective functioning of government organisations. It is an attest component of governance and plays a key role in protecting public institutions. Bulgaria, with its distinctive geopolitical and historical context, represents a unique environment for exploring the conceptuality of administrative security and its functionality. Understanding and assessing administrative security is essential for the development and stability of the country.</p>Iliana SimeonovaTsvetelina Metodieva
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-122024-11-122719310510.46687/jsar.v26i1.397COMPARATIVE ANALYSIS OF THE EFFECTIVENESS OF INDIVIDUAL BALLISTIC PROTECTION MEANS USED IN THE RUSSO-UKRAINIAN WAR
https://jsar.ftn.shu.bg/index.php/jsar/article/view/396
<p>The present scientific paper presents a comparative analysis of the different types of individual ballistic protection devices, particularly focusing on body armor used in the high-intensity conflict between Russia and Ukraine. With the advancement of technologies and the introduction of new tactics in modern conflicts, losses of personnel significantly increased. The use of effective individual ballistic protection devices substantially reduces these losses. The report examines the following parameters to compare different types of body armor: class of ballistic protection, weight, protective area, and comfort in use. To conduct the analysis, available literary sources, military reports, and feedback from the personnel of the countries involved in the conflict were studied.</p>Miroslav DimitrovConyu Conev
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-122024-11-12271849210.46687/jsar.v26i1.396IMPLEMENTATION OF THE SYMMETRIC CRYPTOGRAPHIC ALGORITHMS RC2 AND TRIPLE DES IN ECB MODE USING CRYPTOGRAPHIC SOFTWARE PROGRAM CRYPTOOL
https://jsar.ftn.shu.bg/index.php/jsar/article/view/395
<p>This paper presents an in-depth analysis of symmetric key cryptographic algorithms, focusing on RC2 and Triple DES (ECB) as implemented in CrypTool. It is widely used educational software that demonstrates various cryptographic algorithms and methods. This paper aims to provide a foundational understanding of CrypTool, explain the functionalities of RC2 and Triple DES in Electronic Codebook (ECB) mode and evaluate their performance and security.</p>Petar Boyanov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-122024-11-12271678310.46687/jsar.v26i1.395CONCEALING TEXT AND EXECUTABLE FILES IN JPG FORMAT FILES WITH A STEGANOGRAPHIC COMMAND-LINE TOOL IN THE OPERATING SYSTEM KALI LINUX
https://jsar.ftn.shu.bg/index.php/jsar/article/view/394
<p>In this scientific paper concealing text and executable files in JPG format files with a steganographic command-line tool in the Kali Linux operating system is presented. Among the myriad of steganographic tools, Steghide has gained prominence for its robust features and ease of use. Primarily focused on embedding and extracting secret messages within image files, the software tool Steghide enables users to encode text data within JPEG and BMP image formats while maintaining data integrity and minimizing visual alterations. This paper provides an in-depth examination of Steghide’s functionality, workflow, and security considerations in the context of digital steganography. It is also discussed the algorithms underpinning Steghide’s operations, its strengths, limitations and common use cases.</p>Petar Boyanov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-122024-11-12271506610.46687/jsar.v26i1.394ABOUT WORK IN PROGRESS IN THE CONTEXT OF INTRALOGISTICS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/393
<p>The current paper attempts, briefly and in general terms, to present the need for work-in-progress for the normal flow of the production process. This ensures the rhythmicity and continuity of the flow of production. The basis for achieving these two characteristics is also the so-called reserve, which should be in sufficient quantity.</p>Svetlozar Stoyanov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-122024-11-12271404910.46687/jsar.v26i1.393THE ROLE OF INFORMATION FLOWS IN THE OPERATIONAL MANAGEMENT OF TRANSPORT
https://jsar.ftn.shu.bg/index.php/jsar/article/view/392
<p>The management of transport flows is based on transmitting, receiving and processing the information related to them by applying the principles of the system approach. In a theoretical-applied aspect, it manifests itself as an economic activity for the development and implementation of methods for collecting, storing, processing and distributing information for specific functions and operations in transport infrastructure systems.</p>Anton AntonovNikolai Nedev
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-122024-11-12271333910.46687/jsar.v26i1.392SIGNET RING WITH AN IMAGE OF A LILY FOUND AT THE SHUMEN VICINITY
https://jsar.ftn.shu.bg/index.php/jsar/article/view/391
<p>The subject of the presented work is a signet ring with an image of a heraldic lily. Only the main sealing part, filled with glass paste, in which the image is engraved, has been preserved from the object. The thin ring soldered to the tile is not preserved. The traces from the solder of the ring to the solder on the reverse side of the board are clearly visible. The latter has an elliptical shape with a scalloped outline and bud-like ornamentation above it. The central part of the object is occupied by a deep socket filled with greenish glass paste, in which the image of the heraldic lily is carved. Rings with images of lilies from the late Middle Ages are a whole group, and therefore this type of decoration can be considered one of the favorites of this period. Most of the ornaments are made entirely of metal, the more famous ones being silver and gold. The symbolic meaning of the lily is a reason for it to appear on various art monuments, such as the portraits of the founders from the church "St. Nicholas" in Stanichane (XIV century), the late medieval belts with appliqués in the shape of lilies from the territory of Bulgaria and many others . In this context, we can also place the current ring with an engraved image of a heraldic lily from the era of the Second Bulgarian Kingdom, found in the vicinity of Shumen and the Shumen Fortress, whose most active life was precisely during this period.</p>Stella DonchevaNikolay Nikolov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-122024-11-12271273210.46687/jsar.v26i1.391DETERMINATION OF AN OBVIOUS FACTUAL ERROR IN A CADASTRAL MAP
https://jsar.ftn.shu.bg/index.php/jsar/article/view/390
<p>The maps created of reinstated property after 1990 contain numerous errors. These errors have been transferred from the existing cadastral plans, comassation plans, land subdivision plan, aerial photo plans and a large-scale topographic maps created in the years 1964-1968. For the creation of maps of the reinstated property, the sources described above were used directly, without repeated aerial photography or deciphering of the objects as well as without the conduction of direct geodetic measurements [6, 8]. The presence of an obvious factual error is a relatively common phenomenon in the cadastral map. The same applies mainly to linear objects and it is quite possible to remove these errors. These errors can be corrected via separate projects for the specific errors, as well as via projects affecting a large part of land territory and even an entire land territory.</p>Mirem Niyazi-YusufKrasimira KirilovaKiril Yanchev
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-122024-11-12271192610.46687/jsar.v26i1.390ACOUSTIC WAVES – SONAR EQUATION
https://jsar.ftn.shu.bg/index.php/jsar/article/view/388
<p>The earliest methods used to directly measure water depth were the guide line (lead line) and drilling. Their simple principles of operation ensure their continued use for many centuries.</p>Evgeni Stoykov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-122024-11-12271121810.46687/jsar.v26i1.388TYPES OF INFORMATION SYSTEMS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/387
<p>The report shows ways to divide information systems into different types. Although the separation is artificial, it is important and is the basis for the formation of various GIS applications. Non-land GIS are focused on the population, housing policy, economic and political activity of the population.</p>Sabin IvanovKlaida Doychinova
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2024-11-122024-11-1227151110.46687/jsar.v26i1.387Content of vol. 26, 2024, Journal Scientific and Applied Research
https://jsar.ftn.shu.bg/index.php/jsar/article/view/386
<p>Content of vol. 26, 2024, Journal Scientific and Applied Research</p>Petar Boyanov
Copyright (c) 2024 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2024-11-112024-11-112713310.46687/jsar.v26i1.386International Editorial Board of vol. 26 No. 1 (2024): Journal Scientific and Applied Research
https://jsar.ftn.shu.bg/index.php/jsar/article/view/385
<p>International Editorial Board of vol. 26 No. 1 (2024): Journal Scientific and Applied Research</p>Petar Boyanov
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2024-11-112024-11-112712210.46687/jsar.v26i1.385COMPARATIVE ANALYSIS OF REAL-TIME LOAD TRACKING TECHNOLOGIES
https://jsar.ftn.shu.bg/index.php/jsar/article/view/384
<p>Real Time Locating Systems (RTLS) and Radio Frequency Identification (RFID) are key technologies in asset tracking and management. Although they may look similar at first glance, they have different characteristics, advantages and disadvantages that make them suitable for different applications.</p>Anton Antonov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-292023-11-29271868910.46687/jsar.v25i1.384DETERMINING THE QUANTITIES OF WASTE STREAMS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/383
<p>In this research, we examine and distinguish the waste that is landfilled at the local level, this is the process by which unwanted and unnecessary waste is disposed of. We can distinguish them by defining and evaluating them properly. There is a law that states that municipal programs for waste management are sectoral programs and are an integral part of municipal programs for environmental protection. We will also consider the objectives guaranteeing the achievement of the general objective of the Plan. We will consider the equations by which the amount of household waste generated is determined.</p>Iva Takova
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-292023-11-29271828510.46687/jsar.v25i1.383ANALYSIS OF TRAFFIC WHEN SYSTEMATIZING INFORMATION FLOWS IN LAN LOGISTICS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/382
<p>The paper presents research of the traffic when systematizing information flows in logistics. Ethernet is one of the most popular networks, especially if equal access networks are to be built and maintained. Ethernet is widely used to control machines, production lines and even entire production plants. However, working in real-time mode sometimes creates conflicts in certain actuators which are time-sensitive to the commands sent to them. Therefore, it is necessary to investigate the average delay time and time dispersion of the LAN Ethernet, to be able to meet the requirements for real-time operation in logistics.</p>Stefan Kazakov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-292023-11-29271768110.46687/jsar.v25i1.382A DISTRIBUTION SYSTEM DESIGN MODEL
https://jsar.ftn.shu.bg/index.php/jsar/article/view/381
<p>Large varieties of mathematical programming models have been developed to provide decision support to the design engineer. The paper deals with some of the problems and offers practical solutions.</p>Andrey Bogdanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-292023-11-29271707510.46687/jsar.v25i1.381A MODERN SOLUTION THAT HAS A POSITIVE IMPACT ON LOGISTICS SERVICES AND SIGNIFICANTLY REDUCES INTERSECTION FATALITIES
https://jsar.ftn.shu.bg/index.php/jsar/article/view/380
<p>Year after year, the problems on the world's roads are getting worse. According to the UN Economic Commission for Europe (ECE) 2006 Report on the 1968 Geneva Convention "Road Signs and Signals", the rules are periodically updated to take into account the growing demands for human safety, environmental protection, and the rapid development of technological progress around the world (Report IEC UN, New York and Geneva, 2007). Unfortunately, for about a hundred years now, no drastic measures have been taken against the causes of road traffic accidents around the world. Our research is focused on reducing intersection congestion, traffic accidents, and related deaths. A new road sign and traffic light were invented. According to the conclusions of domestic and foreign scientists, the invented sign and traffic light should be a great success in practice.</p>Tajimuratov Umid RuzmatovichAdilov Shukhrat KayumovichTajimuratov Ruzmat OtajanovichTajimuratov AbdusamiUmid Ugli
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-292023-11-29271596910.46687/jsar.v25i1.380STUDYING THE APPLICATION OF CAD/CAM/CAE SYSTEMS IN THE DESIGN OF COMPONENTS FOR PERSONAL BALLISTIC PROTECTION EQUIPMENT
https://jsar.ftn.shu.bg/index.php/jsar/article/view/379
<p>The article presents a study of the possibilities for applying the virtual set of tools for 3D modeling, manipulation, and testing of components that are part of individual ballistic protection equipment.</p>Stamen AntonovMariela Ivanova
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-292023-11-29271455810.46687/jsar.v25i1.379INVESTIGATING THE NETWORK TRAFFIC USING THE COMMAND-LINE PACKETS SNIFFER TCPDUMP IN KALI LINUX
https://jsar.ftn.shu.bg/index.php/jsar/article/view/378
<p>In this scientific article a comprehensive investigation of the network traffic using the command-line packets sniffer Tcpdump in kali Linux is made.</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-292023-11-29271314410.46687/jsar.v25i1.378BASIC NETWORK PENETRATION TESTING WITH THE NETWORK TOOL NETCAT IN LINUX-BASED OPERATING SYSTEMS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/377
<p>In this scientific article a basic network penetration testing with the network tool Netcat in Linux-based operating systems is presented.</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-292023-11-29271153010.46687/jsar.v25i1.377ON THE CULTURAL AND HISTORICAL HERITAGE OF SHUMEN FROM THE XIX CENTURY AND ON THE ECONOMIC AND TECHNOLOGICAL INNOVATIONS IN THE CITY
https://jsar.ftn.shu.bg/index.php/jsar/article/view/376
<p>During the period XV – XIX century, Shumen was an important administrative center in the Ottoman Empire because of its strategic location, favorable weather and its natural defenses. In the 19th century, the residents of Shumen had the opportunity to develop modern trade, crafts, to apply technological innovations in their manufacturing, to improve the economy and the everyday lives of its population.</p>Milena Georgieva
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-292023-11-2927151410.46687/jsar.v25i1.376Content of vol. 25, 2023, Journal Scientific and Applied Research
https://jsar.ftn.shu.bg/index.php/jsar/article/view/375
<p>Content of vol. 25, 2023, Journal Scientific and Applied Research</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-292023-11-292713310.46687/jsar.v25i1.375International Editorial Board of vol. 25 No. 1 (2023): Journal Scientific and Applied Research
https://jsar.ftn.shu.bg/index.php/jsar/article/view/374
<p>International Editorial Board of vol. 25 No. 1 (2023): Journal Scientific and Applied Research</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-292023-11-292712210.46687/jsar.v25i1.374A MODEL FOR EVALUATING INFORMATION SECURITY SYSTEMS IN INDUSTRIAL ENTERPRISES AND ASSESSING ITS IMPACT ON INCREASING THE COMPETITIVENESS OF ENTERPRISES
https://jsar.ftn.shu.bg/index.php/jsar/article/view/373
<p>Globalization covers all spheres of life and economy in the modern world. The innovative development of information and communication technologies is a key factor in maintaining the competitiveness of companies on local, regional and global markets, which, however, is associated with certain risks. Information systems contribute to increasing the productivity of companies by catalyzing innovation and thus organizations gain an advantage over other players in their market. This process over the last few decades has established itself as a determining factor in the global market. The innovative development strategy of companies leads to competitive recovery, expansion and consolidation of market positions. In the fight against competitors, companies are looking for new solutions to optimize business, introducing intelligent information technologies in order to reduce the probability of making incorrect management decisions that would lead to adverse consequences.</p>Zuhran KadievaKrasimira Dimitrova
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-232023-11-2327110211510.46687/jsar.v24i1.373DISCOVERING WIRELESS NETWORKS VIA MODIFIED SCRIPTS IMPLEMENTING LINEAR ALGORITHMS FOR LINUX BASED OPERATING SYSTEMS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/372
<p>In this scientific paper modified scripts, implementing linear algorithms for discovering wireless networks in Linux based operating systems are presented.</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-232023-11-232718910110.46687/jsar.v24i1.372USING MODIFIED SNIFFER SCRIPTS, IMPLEMENTING LINEAR ALGORITHMS FOR DETECTION OF NETWORK PORT SCAN ATTACKS IN LINUX BASED OPERATING SYSTEMS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/371
<p>In this scientific paper modified sniffer scripts, implementing linear algorithms for detection of network port scan attacks in Linux based operating systems are presented.</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-232023-11-23271788810.46687/jsar.v24i1.371SYSTEM FOR REAL-TIME MONITORING OF TEMPERATURE, AIR HUMIDITY AND ATMOSPHERIC PRESSURE
https://jsar.ftn.shu.bg/index.php/jsar/article/view/370
<p>In the present article, we present a system for monitoring the quality of air by measuring the temperature, air humidity and atmosphere pressure. The system uses Arduino microcontroller and BME280 for measuring and the obtained data is stored in database. The web based application provides real-time graphical representation of the data or the data for fixed period of time.</p>Krasimir KordovStanislav Vichev
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-232023-11-23271737710.46687/jsar.v24i1.370ANCIENT METALLURGY IN THE BULGARIAN LANDS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/369
<p>Ancient metallurgy is a broad concept and is associated both with mining and metalworking, and in many cases is evidence of their existence. Data on metalworking are indirect evidence of the development of mining. Metal implements, weapons, and ornaments were the most mobile material, and metal and its articles were one of the main objects of ancient barter. The development of metallurgy became one of the main drivers of economic life during different historical eras, and the territory of Bulgaria is no exception, but on the contrary, it is one of the places where this activity originated and developed for centuries.</p>Stella Doncheva
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-232023-11-23271657210.46687/jsar.v24i1.369ENGINEERING DOCUMENTATION OF ARCHAELOGICAL EXCAVATIONS OF THE SITE “EARLY (WOODEN) FORTIFICATION” IN THE INNER CITY OF PLISKA AS PART OF THE CULTURAL AND HISTORICAL HERITAGE OF THE REPUBLIC OF BULGARIA
https://jsar.ftn.shu.bg/index.php/jsar/article/view/368
<p>The current paper presents briefly and in general terms the horizontal geodesic survey done by angle measurement, as well as the engineering documentation of the results of the stage from the archaeological excavations of the site “Early (wooden) fortification“ in the Inner city of Pliska in 2019.</p>Svetlozar Stoyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-232023-11-23271526410.46687/jsar.v24i1.368HYDROGRAPHIE SOME FACTUAL AND LEGAL DIMENSIONS OF THE FENOMENON “TRAFFICING IN HUMAN BEINGS”
https://jsar.ftn.shu.bg/index.php/jsar/article/view/367
<p>The report examines some factual and legal aspects of the fenomenon of human trafficking.The factual and normative manifestations are considered as interpenetrating indivisibility. The legal essence of the crime “human trafficking” is clarified, and its main composition is analyzed. Parallels have been drawn with nearby phenomena, somethimes leading to trafficking – migration and channeling. The social aspects of the phenomenon are analyzed and a multidisciplinary approach is proposed to deal with the problem threatening migrationnational security.</p>Yana Nikolova
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-232023-11-23271435110.46687/jsar.v24i1.367A CRYPTOGRAPHY COMPETITION FOR STUDENTS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/366
<p>This article presents the processes of preparation and holding of a cryptography competition among fifth and sixth-graders. The objectives of the games are to introduce the science of cryptography to the students, to develop their logical thinking, creativity, competitive spirit and teamwork skills. By having fun, they were able to develop themselves.</p>Lyuba Petrova
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-232023-11-23271394210.46687/jsar.v24i1.366HYDROGRAPHIE ACOUSTIC SYSTEMS - MEASUREMENT PRINCIPLES
https://jsar.ftn.shu.bg/index.php/jsar/article/view/365
<p>Hydrography is an applied science that deals with the study of the bottom and shores of the world ocean (all oceans and seas), lakes, rivers and dams, i.e. all natural and artificial water bodies. Hydrographic research is the study of individual areas of the hydrosphere, including the design, implementation of hydrographic works, processing and analysis of the collected data.</p>Evgeni Stoykov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-232023-11-23271323710.46687/jsar.v24i1.365INFORMATION EXTRACTION FROM MULTISPECTRAL SATELLITE IMAGES
https://jsar.ftn.shu.bg/index.php/jsar/article/view/364
<p>The article analyzes various methods and approaches of modern remote sensing that can be used in the processing of multispectral satellite images in order to effectively extract visual information about territories for which preliminary data is not available. Attention is paid to the creation of new derivative images (synthesized and indexed) and to performing pixel-oriented computer non supervised classification. A series of experiments have been made that clearly reveal the advantages and conveniences of remote retrieval of information from multispectral satellite images in a territory for which reference objects and other data acquired in situ are not available.</p>Neli Zdravcheva
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-232023-11-23271253110.46687/jsar.v24i1.364FACADE SURVEYING USING TRADITIONAL ANGULARLINEAR MEASUREMENTS AND 2D SOFTWARE
https://jsar.ftn.shu.bg/index.php/jsar/article/view/363
<p>To solve complex urban planning and architectural-artistic tasks related to the determination of the spatial location of the existing external elements of the building, in practice it is often necessary to carry out geodetic surveying of building facades. Photographing facades is used in reconstructions of buildings or restorations of cultural monuments, preservation of cultural heritage, photographing archaeological sites, carrying out various types of research activities and analyses, designing suspended facades, cladding and joinery, preparing a working layout plan etc.</p>Ivan Ivanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-232023-11-23271172410.46687/jsar.v24i1.363ABOUT THE CHOICE OF PARAMETERS WHEN REPRESENTING THE NORMAL EARTH AS A REFERENCE FRAME IN GEODESY
https://jsar.ftn.shu.bg/index.php/jsar/article/view/362
<p>When using the Normal Earth as a reference frame, it is allowed to choose its parameters approximately, provided that there will be no difficulties in linearizing the boundary values. In many cases, however, it is convenient to find specific solutions corresponding to the selection of the Normal Earth parameters best suited to the real Earth. Thus, it is of interest to determine, as far as possible, the exact values of these parameters.</p>Krasimira KirilovaKiril Yanchev
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-232023-11-23271111610.46687/jsar.v24i1.362PROPERTY REGISTRY. CREATION AND CONTENT
https://jsar.ftn.shu.bg/index.php/jsar/article/view/361
<p>The property register is a data system for real estate on the territory of the Republic of Bulgaria and consists of the lots of individual properties. It contains the acts that recognize, transfer, amend or terminate the right of ownership or other real right to real estate. The foreclosures and mortgages of NI are included in the property register. The register shows the status of the specified circumstances after the last entry and makes it possible to follow chronologically the changes in the entered circumstances, as well as the entered acts. In the Property Register inquiries can be made about the ownership of the properties, the owners and the real rights and restrictions on them. Inquiries in the register can be made on-site at the registration offices in the country or via the Internet after payment of a fee specified in the price list and registration of the user.</p>Mirem Niyazi-Yusuf
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-232023-11-2327151010.46687/jsar.v24i1.361Content of vol. 24, 2023, Journal Scientific and Applied Research
https://jsar.ftn.shu.bg/index.php/jsar/article/view/360
<p>Content of vol. 24, 2023, Journal Scientific and Applied Research</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-232023-11-232713310.46687/jsar.v24i1.360International Editorial Board of vol. 24 No. 1 (2023): Journal Scientific and Applied Research
https://jsar.ftn.shu.bg/index.php/jsar/article/view/359
<p>International Editorial Board of vol. 24 No. 1 (2023): Journal Scientific and Applied Research</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-11-232023-11-232712210.46687/jsar.v24i1.359ALGORITHM OF OPERATIONAL RISK ASSESSMENT OF BULGARIAN POSTS PLC
https://jsar.ftn.shu.bg/index.php/jsar/article/view/358
<p>The report examines the main activities of the management technology of Bulgarian Posts and defines the organization and factors of management processes. The proposed algorithm aims to validate these interconnected relationships that make up a logistics system. An approach was adopted for mathematical modeling of operations and criteria for evaluating socio-economic indicators.</p>Anatoli StoyanovStefan KazakovVeselina Kodzheykova
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-2627110511310.46687/jsar.v23i1.358CLASSIFICATION OF INFORMATION FLOWS IN LOGISTICS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/357
<p>The report presents a traffic study of information flows in logistics in a local area network built according to the 802.3 standard. The study of network performance is according to the number of computers in communication.</p>Stefan Kazakov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-262719910410.46687/jsar.v23i1.357A COMPREHENSIVE SCANNING FOR OPEN, CLOSED AND FILTERED PORTS IN THE COMPUTER SYSTEMS AND NETWORKS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/356
<p>In this paper a comprehensive scanning for open, closed and filtered ports in the computer systems and networks is made.</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271859810.46687/jsar.v23i1.356IMPLEMENTATION OF MODIFIED NETWORK PORT SCANNER FOR WINDOWS BASED OPERATING SYSTEMS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/355
<p>In this paper a modified network port scanner for Windows based operating systems implementing a linear algorithm is developed.</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271738410.46687/jsar.v23i1.355IMPLEMENTATION OF SOFTWARE APPLICATION FOR NETWORK PORT SCANNING IN ANDROID BASED OPERATING SYSTEMS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/354
<p>In this paper implementation of software application using linear algorithm for network port scanning in android based operating systems is made.</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271607210.46687/jsar.v23i1.354IMPLEMENTATION OF MODIFIED SCRIPT FOR LINUX BASED OPERATING SYSTEMS USING A LINEAR ALGORITHM FOR NETWORK PORT SCANNING
https://jsar.ftn.shu.bg/index.php/jsar/article/view/353
<p>The Python programming language has various module libraries for network scanning of hosts. In this paper the performance and implementation of a modified script for Linux based operating systems using a linear algorithm for network port scanning is presented.</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271485910.46687/jsar.v23i1.353INACCURACIES IN AREA OBJECTS TRANSFERRED FROM THE MAP OF THE RESTORED PROPERTY TO THE CADASTRAL MAP
https://jsar.ftn.shu.bg/index.php/jsar/article/view/352
<p>The cadastral map and cadastral registers are created under conditions of maximum use of the existing map of the restored property and the current cadastral plans of the settlements. In the practice of the Geodesy, Cartography and Cadastre Agency - in the process of creating a cadastral map and cadastral registers and maintaining the already approved cadastral map and cadastral registers in an up-to-date state, discrepancies are found in the non-urbanized territory, which are transferred to the cadastral map and cadastral registers registers from the restored property map.</p>Mirem Niyazi-Yusuf
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271394710.46687/jsar.v23i1.352REMOTE SENSING OF THE STATE OF THE VEGETATION COVER OF THE TERRITORY OF THE BULGARIAN BLACK SEA
https://jsar.ftn.shu.bg/index.php/jsar/article/view/351
<p>This paper is devoted to the multispectral processing of satellite images in order to establish the actual state of the vegetation cover. As a result of conducted experiments, the vegetation on the territory of the Bulgarian Black Sea coast was studied. For this purpose, new indexed images have been generated from appropriately selected multispectral images, which visually reveal the actual state of the vegetation cover and provide objective and timely data. They could serve to manage and other decisions (in the field of ecology, forestry, agriculture, etc.), for environmental assessments and expertise, for scientific research and other projects.</p>Neli Zdravcheva
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271333810.46687/jsar.v23i1.351GEODETIC BASIS WHEN PERFORMING MARINE HYDROGRAPHIC MEASUREMENTS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/350
<p>Geodetic network is the set of permanently stabilized points on the earth's surface, the position of which is determined in a single coordinate and altitude system (X, Y and H) accepted in a given country. When creating geodetic networks, the basic principle from the "general to the private" must be respected, i.e. one must go from the "big to the small".</p>Evgeni Stoykov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271263210.46687/jsar.v23i1.350MODERN TECHNOLOGIES IN THE STUDY, PRESERVATION AND MANAGEMENT OF CULTURAL HERITAGE
https://jsar.ftn.shu.bg/index.php/jsar/article/view/349
<p>The new technologies, which will be briefly described below, provide opportunities for documenting cultural and historical structures as a whole and individual details with absolute accuracy and credibility, completely eliminating the subjective factor, speed, representativeness, usability in design.</p>Sabin Ivanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-2627152510.46687/jsar.v23i1.349Content of vol. 23, 2022, Journal Scientific and Applied Research
https://jsar.ftn.shu.bg/index.php/jsar/article/view/348
<p>Content of vol. 23, 2022, Journal Scientific and Applied Research</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-262713310.46687/jsar.v23i1.348International Editorial Board of vol. 23 No. 1 (2022): Journal Scientific and Applied Research
https://jsar.ftn.shu.bg/index.php/jsar/article/view/347
<p>International Editorial Board of vol. 23 No. 1 (2022): Journal Scientific and Applied Research</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-2627110.46687/jsar.v23i1.347ANALYSIS OF RFID SYSTEMS IN LOGISTICS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/346
<p>The application of radio frequency identification is constantly expanding. The technology is sought in industries where control over the movement of objects, intelligent automation solutions, the ability to work in harsh working conditions, trouble-free operation, speed and reliability are required. By applying RFID, it is possible to track the movement of goods in real time, speed up the process of receiving and sending goods, increase the reliability and transparency of operations, and reduce the influence of the human factor. </p>Anton Antonov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-262719910310.46687/jsar.v22i1.346OVERVIEW OF THE MODULES FOR BUILDING A WIRELESS SENSOR NETWORK
https://jsar.ftn.shu.bg/index.php/jsar/article/view/345
<p>Recent technological advances have enabled the development of low-cost, low-power and multifunctional sensor devices. These nodes are autonomous devices with integrated sensing, processing, and communication capabilities. A sensor is an electronic device that is capable of detecting environmental conditions such as temperature, sound, chemicals, or the presence of certain objects. Sensors are generally equipped with data processing and communication capabilities. The sensing circuitry measures parameters from the environment surrounding the sensor and transforms them into electric signals</p>Daniel Denev
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271939810.46687/jsar.v22i1.345TESTING AMD RYZEN MICROPROCESSOR AND ITS ENERGY EFFICIENCY
https://jsar.ftn.shu.bg/index.php/jsar/article/view/344
<p>In this paper, we show a case study of Ryzen processor energy efficiency using SPECjbb2015 as the workload. We analyze it in comparison to Phenom II, a CPU of previous generation from the same manufacturer AMD. In terms of maxi-mum transaction throughput, Ryzen performs 218% of Phenom. With the response time constraint, the relative performance of Ryzen is 288%. In the energy efficiency, Ryzen achieves 309% (at maximum throughput) and 389% (with response time constraints) of Phenom. Dynamic frequency scaling (DFS) is effective for reducing the power consumption of both processors, but the load levels at which DFS is most effective are quite different.</p>Daniel Denev
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271819210.46687/jsar.v22i1.344SYNTHESIS AND ANALYSIS OF LINEAR, DISCRETE AND TIMEINVARIANT SYSTEMS, USED IN THE FIELD OF COMMUNICATIONS, USING MATLAB AND SIGNAL PROCESSING TOOLBOX
https://jsar.ftn.shu.bg/index.php/jsar/article/view/343
<p>Synthesis and Analysis of Linear Discrete Time-Invariant Systems Applied in Communications Using MATLAB and Signal Processing Toolbox: The paper presents the main steps in the process of synthesizing and analyzing linear discrete time-invariant systems applied in the field of communications. The simulation results of the systems implementing pre-emphasis and de-emphasis and removing DC offset are given in the paper such as impulse responses, frequency responses and pole-zero plots using MATLAB and Signal Processing Toolbox.</p>Daniel DenevTsvetoslav Tsankov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271728010.46687/jsar.v22i1.343MODEL OF A TERMINAL NETWORK DEVICE BASED ON A SINGLE-CHIP MICROCONTROLLER AND ETHERNET INTERFACE
https://jsar.ftn.shu.bg/index.php/jsar/article/view/342
<p>Model of a terminal network device based on a single-chip microcontroller and Ethernet interface: In the present work, a training model of a terminal network device based on a single-chip microcontroller and Ethernet interface is built, allowing the implementation of various functional tasks:</p> <p>⎯ reading of digital and analog sensors <br>⎯ relay output control <br>⎯ visualization of information with digital – alphanumeric display</p>Daniel DenevTsvetoslav Tsankov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271667110.46687/jsar.v22i1.342COMPARATIVE ANALYSIS OF PROGRAMMABLE DEVICES WITH ANALOG AND DIGITAL INPUTS AND OUTPUTS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/341
<p>In the present article, single-board programmable devices suitable for control of automation processes are considered. A comparative analysis of specific models of the most common single-board computers, suitable for this purpose.</p>Milen Petkov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271566510.46687/jsar.v22i1.341PROTECTION AGAINST THE ELECTROMAGNETIC STRENGTH OF THE RADIO WAVES IN COMMUNICATION RADIO NETWORKS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/340
<p>In this paper presents protection methods against Electromagnetic straight of the radio waves in communication radio networks. Examples of personal protective equipment for monitoring EMF when working near transmitting devices. Personal Monitor. When an electric current flows through the human body, cells and tissues prevent the movement of charged particles. The value of the resistance depends on the type and condition of the cells, the value and frequency of the applied voltage and the duration.</p>Dragomir Vasilev
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271505510.46687/jsar.v22i1.340ANALYSIS AND MONITORING THE NETWORK TRAFFIC IN THE PROCESS OF CONNECTING TO INDUSTRIAL SIEMENS CONTROLLERS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/339
<p>In this paper analysis and monitoring of network traffic in the process of connecting to industrial Siemens controllers in the Faculty of Technical Sciences is made.</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271414910.46687/jsar.v22i1.339THE CHANGE OF IDENTITY-PROCESS FROM THE SOCIAL SYSTEM
https://jsar.ftn.shu.bg/index.php/jsar/article/view/338
<p>According to scientific experts, in the coming years humanity will be in a process of general demographic transition, after which either the population of the planet will stabilize or an era of slight, prolonged and monotonous decline will begin. The reason for all this is the anthropogenic flow, which is gradually becoming an object of state administration, and at the same time is at the center of the scientific report.</p>Tsvetelina Metodieva
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271374010.46687/jsar.v22i1.338TYPES OF MIGRATION
https://jsar.ftn.shu.bg/index.php/jsar/article/view/337
<p>Migration in Europe is not a new phenomenon. It is estimated that in 1945 there were over 40 million refugees and internally displaced persons in Europe. The military conflicts in the Middle East and North Africa over the last few years, as well as the war in Ukraine, have created a huge wave of refugees heading for the Old Continent.</p>Tsvetelina Metodieva
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271333610.46687/jsar.v22i1.337ERROR IN DETERMINING THE PERMANENT CORRECTION OF THE MEASURED DISTANCE BY A GROUND LASER SCANNER
https://jsar.ftn.shu.bg/index.php/jsar/article/view/336
<p>The subject of the research is to make a correct assessment of the error in determining the constant correction of the measured distance and to choose a model for their removal, which will allow achieving the required accuracy and high productivity with minimal material costs when performing laser measurements.</p>Kiril Yanchev
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271283210.46687/jsar.v22i1.336THE INFLUENCE OF TURBOLITY ON LASER SIGNALS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/335
<p>The subject of the research is to make a correct assessment of the vibrations and to choose a model for their elimination, which will allow achieving the required accuracy and high productivity with minimal material costs when performing laser measurements.</p>Kiril Yanchev
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271252710.46687/jsar.v22i1.335THE INFLUENCE OF AIR DENSITY ON RECEIVED LASER SIGNALS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/334
<p>The subject of the research is to make a correct assessment of the atmospheric parameters and to choose a model for their removal, achieving the required accuracy and high productivity with minimal material costs when conducting laser measurements.</p>Kiril Yanchev
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271202410.46687/jsar.v22i1.334METHOD FOR BUILDING A WORKING GEODETIC NETWORK OF REFLECTIVE MARKS FOR CONSTRUCTION NEEDS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/333
<p>The work in the implementation of construction works for large production buildings, residential complexes, airports, sports complexes, examination of deformations and many other activities that require precise geodetic measurements can be optimized during and quality through the creation and use of geodetic reflective marks. The article discusses how to stabilize and measure the working base and part of the processing theory.</p>Petyo Spasov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271151910.46687/jsar.v22i1.333MONITORING OF THE STATUS OF CULTURAL HERITAGE SITES
https://jsar.ftn.shu.bg/index.php/jsar/article/view/332
<p>The topic of cultural heritage and its preservation has always been part of the public and professional debate about the development of the regions and their future. In the territorial planning of modern settlements as the duty of specialists is the entry of history into the modern urban structure and spaces. The problems in the management of territories occupied by cultural monuments are dictated rather by the lack of a single and sustainable practice valid for all sites, which ensures security and sustainable development with a balanced protection of the interests of all those affected.</p>Sabin Ivanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271101410.46687/jsar.v22i1.332CARCINOMA GLANDULAE PAROTIS AND BLOOD GROUP AFFILIATION
https://jsar.ftn.shu.bg/index.php/jsar/article/view/331
<p>The current study included 83 patients with Ca glandulae parotis (72 men and 11 women) whose blood group affiliation to the AB0 and Rhesus factor systems was monitored. A comparison was made with a control group of healthy individuals from the modern Bulgarian population. The distribution of the blood groups in the sample was different from that of the control group (p <0.001). There was a significant increase in the prevalence of persons with blood group B (p <0.001), and a significant decrease in groups 0 (p <0.001) and A (p <0.05). In group AB, a slight increase in frequency was detected. With respect to the Rhesus factor, there was an increase in the patients with positive Rhesus factor - by 9.23% to 93.94% (p<0.05). It can be assumed that, among other risk factors, belonging to group B and having a positive Rhesus factor are one of the reasons for the appearance and development of the disease.</p>Maria BoychevaBiljana BoychevaVelislav Todorov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-262715910.46687/jsar.v22i1.331Content of vol. 22, 2022, Journal Scientific and Applied Research
https://jsar.ftn.shu.bg/index.php/jsar/article/view/330
<p>Content of vol. 22, 2022, Journal Scientific and Applied Research</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-262713410.46687/jsar.v22i1.330 International Editorial Board of vol. 22 No. 1 (2022): Journal Scientific and Applied Research
https://jsar.ftn.shu.bg/index.php/jsar/article/view/329
<p>International Editorial Board of vol. 22 No. 1 (2022): Journal Scientific and Applied Research</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-2627110.46687/jsar.v22i1.329DETERMINATION OF CRITERIA FOR THE EFFICIENCY OF AUTOMATION AND PRESENTATION OF RELATED FACTORS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/328
<p>The object of definition of the present development are the criteria for efficiency from the implementation of automated equipment, and the accompanying risk assessment factors. The presentation of the three main variants of automation and their comparison with its social and economic efficiency, aims to facilitate the selection of the appropriate configuration of technological units to meet real human needs and protect business interests.</p>Svetla Peeva
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-2627110611110.46687/jsar.v21i1.328IMPACT REPORTING THE RESULTS OF THE IMPLEMENTATION OF AUTOMATED EQUIPMENT ON THE COMPETITIVENESS OF COMPANIES
https://jsar.ftn.shu.bg/index.php/jsar/article/view/327
<p>The present study aims to show the direct and indirect impact of process automation on the degree of competitiveness of a company. The subject of comparison are the approaches in the choice of a model of technological equipment and the social and economic efficiency. The relationship between benefits and risks in making such important for business development decisions is analyzed.</p>Svetla Peeva
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-2627110010510.46687/jsar.v21i1.327ARCHEOLOGICAL DRAWINGS WHEN GRAPHIC ENGINEERING DOCUMENTING OF EXCAVATIONS AT OBJECTS WITH CULTURAL AND HISTORICAL HERITAGE
https://jsar.ftn.shu.bg/index.php/jsar/article/view/326
<p>The suggested paper tries go present in brief and in general the types of archeological drawings when graphic engineering documenting of excavations at objects with cultural and historical heritage.</p>Svetlozar Stoyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271949910.46687/jsar.v21i1.326ANALYSIS OF THE ADVANTAGES AND DISADVANTAGES OF OUTSOURCING
https://jsar.ftn.shu.bg/index.php/jsar/article/view/325
<p>With outsourcing growth expected in the years to come, it is time to learn more about this topic. Before we move forward, it’s imperative to compare the pros and cons of outsourcing. And it's also very important to understand the effect outsourcing can have on companies.</p>Yordanka Yankova –Yordanova
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271879310.46687/jsar.v21i1.325ANALYSIS OF A STEGANOGRAPHIC METHOD FOR HIDING ONE IMAGE IN ANOTHER IMAGE USING MATLAB AND IMAGE PROCESSING TOOLBOX
https://jsar.ftn.shu.bg/index.php/jsar/article/view/324
<p>Analysis of a Steganographic Method for Hiding an Image into a Cover Image Using MATLAB and Image Processing Toolbox: The paper presents an algorithm for hiding a 24-bit color image in bmp format in another 24-bit color image also in bmp format. The algorithm is based on the least-significant bit method and is implemented using MATLAB and Image Processing Toolbox. This algorithm can be applied for 100% reconstruction of the hidden image when four cover images are used.</p>Daniel Denev
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271808610.46687/jsar.v21i1.324ANALYSIS OF THE REQUIREMENTS FOR OPTICAL CABLES FOR CONSTRUCTION OF UNDERWATER TRANSMISSION SYSTEMS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/323
<p>Analysis of the requirements for underwater transmission systems using optical fibers: The purpose of this article is to explain the fundamentals of the optical fibers for underwater placement. The specific requirements for the creation of underwater transmission systems are defined by the extreme environment. A general analysis of the current optic fiber has been conducted and their main characteristics are presented</p>Daniel DenevTsvetoslav Tsankov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-262023-03-26271757910.46687/jsar.v21i1.323ELECTROMAGNETIC ENVIRONMENT IN CITIES AND RESIDENTIAL AREAS
https://jsar.ftn.shu.bg/index.php/jsar/article/view/322
<p>In this paper presents Electromagnetic Environment in cities. It noted that in the field of living hygiene, the concept of "risk" and safety of life is not sufficiently developed. This situation is preserved to this day, which creates real preconditions for the formation of unfavorable living conditions with damage to the health of the population. It was not until 1996 that the first hygiene standards for EMF levels were used when using consumer goods at home.</p>Dragomir Vasilev
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-252023-03-25271707410.46687/jsar.v21i1.322BIOLOGICAL EFFECT OF THE ELECTROMAGNETIC FIELD
https://jsar.ftn.shu.bg/index.php/jsar/article/view/321
<p>In this paper presents biological effect of the Electromagnetic field. The human body consists of cells, tissues, organs with different electrical characteristics. When an electric current flows through the human body, cells and tissues prevent the movement of charged particles. The value of the resistance depends on the type and condition of the cells, the value and frequency of the applied voltage and the duration.</p>Dragomir Vasilev
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-252023-03-25271646910.46687/jsar.v21i1.321USING VMWARE VSPHERE HYPERVISOR ESXI 6.5.0 FOR VIRTUALIZATION OF THE OPERATING SYSTEM KALI LINUX (64- BIT) FOR EDUCATIONAL PURPOSES IN THE FACULTY OF TECHNICAL SCIENCES
https://jsar.ftn.shu.bg/index.php/jsar/article/view/320
<p>In this paper using VMware vSphere hypervisor ESXi 6.5.0 for virtualization of the operating system Kali Linux (64-bit) for educational purposes in the Faculty of Technical Sciences is made.</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-252023-03-25271546310.46687/jsar.v21i1.320VIRTUALIZATION OF THE OPERATING SYSTEM MICROSOFT WINDOWS 10 (64-BIT) VIA VMWARE VSPHERE HYPERVISOR ESXI 6.5.0 FOR EDUCATIONAL PURPOSES IN THE FACULTY OF TECHNICAL SCIENCES
https://jsar.ftn.shu.bg/index.php/jsar/article/view/319
<p>In this paper virtualization of the operating system Microsoft Windows 10 (64-bit) via VMware vSphere Hypervisor ESXi 6.5.0 for educational purposes in well-equipped laboratories at the Faculty of Technical Sciences at the Konstantin Preslavsky University of Shumen is made.</p>Petar Boyanov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-252023-03-25271455310.46687/jsar.v21i1.319THE ORGANIZATION AS A SUBJECT OF STUDY
https://jsar.ftn.shu.bg/index.php/jsar/article/view/318
<p>The article examines the main internal mechanisms that build social organizations and nuances the differences between the structures in the state apparatus and the corporations.</p>Yana Nikolova
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-252023-03-25271404410.46687/jsar.v21i1.318POSSIBILITIES FOR ADAPTING SECURITY CULTURE MODEL AND ASSESSMENT TOOL FOR THE CORPORATE SECTOR
https://jsar.ftn.shu.bg/index.php/jsar/article/view/317
<p>Each organization forms a unique organizational culture in accordance with the intentions and behavior of management, social and business environment in which it operates, the characteristics of employees, the presence of subcultures, etc. The characteristics of the organizational culture that are relevant to security form the security culture in that organization. It is important to implement security culture model and assessment tools for proper management of the human factors involved in security. This article explores the possibilities to adapt the existing models of security culture and the tools for its assessment for the needs of corporate sector.</p>Vladimir Yankov
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-252023-03-25271363910.46687/jsar.v21i1.317MIGRATION AND SECURITY
https://jsar.ftn.shu.bg/index.php/jsar/article/view/316
<p>The history of mankind is inextricably linked to the migration of huge masses of people from their native places to other territories. Migration is a set of different in nature territorial displacements of the population, which lead to a change of residence. Despite the constraints posed by the COVID-19 pandemic, migrants continue to make secret journeys, fleeing war, violence and poverty.</p>Tsvetelina Metodieva
Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH
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2023-03-252023-03-25271313510.46687/jsar.v21i1.316