JOURNAL SCIENTIFIC AND APPLIED RESEARCH https://jsar.ftn.shu.bg/ojs-3.3.0-7/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The journal publishes scientific information and articles which present new and unpublished results from research in the spheres of the mathematical, physical, chemical, natural, humanitarian, social, medical, Earth, forest and agricultural sciences.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&amp;as_sdt=0%2C5&amp;q=journal+scientific+and+applied+research&amp;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&amp;type=publication" target="_blank" rel="noopener"><strong>ResearchGate</strong></a></p> <p><strong><a href="https://www.mendeley.com/search/?amp%3Bpage=1&amp;amp%3BpublishedIn=Journal%20Scientific%20and%20Applied%20Research&amp;amp%3Bquery=boyanov&amp;amp%3BsortBy=relevance&amp;page=1&amp;query=petar%20and%20boyanov&amp;sortBy=relevance" target="_blank" rel="noopener">Mendeley</a></strong></p> Konstantin Preslavsky University, Faculty of Technical Sciences - Shumen, Bulgaria en-US JOURNAL SCIENTIFIC AND APPLIED RESEARCH 1314-6289 BASIC NETWORK PENETRATION TESTING WITH THE NETWORK TOOL NETCAT IN LINUX-BASED OPERATING SYSTEMS https://jsar.ftn.shu.bg/ojs-3.3.0-7/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 https://creativecommons.org/licenses/by-nc/4.0 2023-11-29 2023-11-29 25 1 15 30 10.46687/jsar.v25i1.377 INVESTIGATING THE NETWORK TRAFFIC USING THE COMMAND-LINE PACKETS SNIFFER TCPDUMP IN KALI LINUX https://jsar.ftn.shu.bg/ojs-3.3.0-7/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 https://creativecommons.org/licenses/by-nc/4.0 2023-11-29 2023-11-29 25 1 31 44 10.46687/jsar.v25i1.378 STUDYING THE APPLICATION OF CAD/CAM/CAE SYSTEMS IN THE DESIGN OF COMPONENTS FOR PERSONAL BALLISTIC PROTECTION EQUIPMENT https://jsar.ftn.shu.bg/ojs-3.3.0-7/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 Antonov Mariela Ivanova Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH https://creativecommons.org/licenses/by-nc/4.0 2023-11-29 2023-11-29 25 1 45 58 10.46687/jsar.v25i1.379 COMPARATIVE ANALYSIS OF REAL-TIME LOAD TRACKING TECHNOLOGIES https://jsar.ftn.shu.bg/ojs-3.3.0-7/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 https://creativecommons.org/licenses/by-nc/4.0 2023-11-29 2023-11-29 25 1 86 89 10.46687/jsar.v25i1.384 ANALYSIS OF TRAFFIC WHEN SYSTEMATIZING INFORMATION FLOWS IN LAN LOGISTICS https://jsar.ftn.shu.bg/ojs-3.3.0-7/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 https://creativecommons.org/licenses/by-nc/4.0 2023-11-29 2023-11-29 25 1 76 81 10.46687/jsar.v25i1.382 A MODERN SOLUTION THAT HAS A POSITIVE IMPACT ON LOGISTICS SERVICES AND SIGNIFICANTLY REDUCES INTERSECTION FATALITIES https://jsar.ftn.shu.bg/ojs-3.3.0-7/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 Ruzmatovich Adilov Shukhrat Kayumovich Tajimuratov Ruzmat Otajanovich Tajimuratov Abdusami Umid Ugli Copyright (c) 2023 JOURNAL SCIENTIFIC AND APPLIED RESEARCH https://creativecommons.org/licenses/by-nc/4.0 2023-11-29 2023-11-29 25 1 59 69 10.46687/jsar.v25i1.380 DETERMINING THE QUANTITIES OF WASTE STREAMS https://jsar.ftn.shu.bg/ojs-3.3.0-7/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 https://creativecommons.org/licenses/by-nc/4.0 2023-11-29 2023-11-29 25 1 82 85 10.46687/jsar.v25i1.383 A DISTRIBUTION SYSTEM DESIGN MODEL https://jsar.ftn.shu.bg/ojs-3.3.0-7/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 https://creativecommons.org/licenses/by-nc/4.0 2023-11-29 2023-11-29 25 1 70 75 10.46687/jsar.v25i1.381 Content of vol. 25, 2023, Journal Scientific and Applied Research https://jsar.ftn.shu.bg/ojs-3.3.0-7/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 https://creativecommons.org/licenses/by-nc/4.0 2023-11-29 2023-11-29 25 1 3 3 10.46687/jsar.v25i1.375 ON 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/ojs-3.3.0-7/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 https://creativecommons.org/licenses/by-nc/4.0 2023-11-29 2023-11-29 25 1 5 14 10.46687/jsar.v25i1.376 International Editorial Board of vol. 25 No. 1 (2023): Journal Scientific and Applied Research https://jsar.ftn.shu.bg/ojs-3.3.0-7/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 https://creativecommons.org/licenses/by-nc/4.0 2023-11-29 2023-11-29 25 1 2 2 10.46687/jsar.v25i1.374