Method of local atmosphere monitoring using drone

Oleksandr Kovalov

National University of Civil Defence of Ukraine

https://orcid.org/0000-0002-4974-5201

Alexander Elizarov

National University of Civil Defence of Ukraine

https://orcid.org/0000-0003-3671-5764

Vladimir Kokhanenko

National University of Civil Defence of Ukraine

https://orcid.org/0000-0001-5555-5239

Svyatoslav Manshura

National Academy of the National Guard of Ukraine

http://orcid.org/0000-0002-9258-9320

DOI: https://doi.org/10.52363/2524-0226-2021-34-16

Keywords: Tropospheric monitoring, unmanned, aircraft, monitoring means, state of the atmosphere, determination of coordinates, measuring points

Аnnotation

Theoretical substantiation of the method of organization of tropospheric monitoring by means of unmanned aerial vehicles with means of atmospheric monitoring installed on board as an auxiliary technical element of the method of organization of atmospheric monitoring by automated stations located on the basis of base stations of mobile operators is carried out. The analysis of liquidations of consequences of resonant accidents, and also designs and characteristics of unmanned aerial vehicles used at their liquidation is carried out. Modern types and characteristics of measuring equipment that can be installed on board unmanned aerial vehicles and used in atmospheric monitoring are considered. An algorithm for tropospheric monitoring has been developed, based on the use of unmanned aerial vehicles with state monitoring devices installed on board, for the operation of which the time during which measurements should be performed, as well as the required number and coordinates of concentration measurement points have been determined. Differs from existing solutions to the problem of determining the coordinates of measurement points using genetic algorithms. Also, the developed method of local monitoring of the atmosphere with the help of unmanned aerial vehicles equipped with means of monitoring the state of the atmosphere took into account the information delay and determined the time interval during which it is possible to perform measurements. The results obtained in the work are of most interest to the rescue services, which plan to use unmanned aerial vehicles to monitor the state of the atmosphere in emergencies, accompanied by emissions of pollutants into the atmosphere.

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Development of mathematical model and methods of prevention of emergency situations of terrorist nature in railway tunnels

Anton Myroshnychenko

National University of Civil Defence of Ukraine

https://orcid.org/0000-0002-5104-0657

Roman Shevchenko

National University of Civil Defence of Ukraine

https://orcid.org/0000-0001-9634-6943

DOI: https://doi.org/10.52363/2524-0226-2021-34-14

Keywords: emergency situation, mathematical model, warning technique, railway tunnels, explosive device

Аnnotation

The paper considers the solution of the problem of increasing the efficiency of the process of prevention of terrorist emergencies in the tunnels of railway transport. Within the framework of the set scientific task the current state of the issue of formation of the mathematical apparatus of methods of counteraction to emergency situations of terrorist character in railway tunnels is analyzed. The physical field and conditions of formation of the mathematical model of prevention of emergencies of terrorist character in railway tunnels and the corresponding technique on its basis are defined. At the final stage of solving the scientific problem, the basic equations of the mathematical model of prevention. In the course of successive solution of the tasks, the existing contradictions in the physical field of model formation are identified and a clear range of functional limitations is formed. Accordingly, the control algorithm of the method should take into account the multilevel liquidation works and the corresponding preliminary procedures for calculating the parameters of the extinguishing pulse and determining the minimum possible distance of blasting, taking into account the risk of pyrotechnics by fragments and structural elements of the railway tunnel. The results obtained in the work allow to further develop a number of practical recommendations for improving the existing standard operating procedures in the case of using additional protection devices and methods of its application in order to reduce the time of localization of terrorist emergencies in railway tunnels, preventing their growth to a higher level of danger, and ensuring a sufficiently high level of individual and collective protection of SES personnel and civilians.

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4. Mauroni, A. (2019). The rise and fall of counter proliferation policy. The Nonproliferation Review, 26:1–2, 127–141. doi: 10.1080/10736700.2019.1593691
5. Skilling, L., Zapasnik, M. (2017). Addressing the Explosive Hazard Threat in Northern Syria: Risk Education on Landmines, UXO, Booby Traps, and IEDs. Journal of Conventional Weapons Destruction, 21, 2, 14. Retrieved from https://commons.lib.jmu.edu/cisr-journal/vol21/iss2/14
6. Xiao, T., Horberry, T., Cliff, D. (2015). Analysing mine emergency management needs: a cognitive work analysis approach. International Journal of Emergency Management (IJEM), 11, 3, 191–208. Retrieved from http://www.inderscience.com/offer.php?id=71705
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Protection of information of departmentary information and telecommunications network using the password system

Vitaliy Sobyna

National University of Civil Defence of Ukraine

http://orcid.org/0000-0001-6908-8037

Dmytro Taraduda

National University of Civil Defence of Ukraine

http://orcid.org/0000-0001-9167-0058

Maksym Dement

National University of Civil Defence of Ukraine

https://orcid.org/0000-0003-4975-384X

DOI: https://doi.org/10.52363/2524-0226-2021-34-15

Keywords: authentication, password, password strength, Shannon entropy, password strength policy

Аnnotation

The approach to quantitative estimation of stability of password systems taking into account power of space of passwords and length of the password is theoretically substantiated. The formalized idea of information entropy as an approach to measuring the amount of information that is unknown through random variables is determined by the randomness of a variable based on the knowledge contained in another part of the message. It is established that the greater the entropy in a given distribution of passwords, the more difficult it is to guess the password that was chosen from this distribution; passwords with higher entropy values require more expected assumptions, which makes entropy useful as a measure of password strength. Proposals for password management of the departmental information and telecommunication network of the object of critical information infrastructure are given. Studies show that much of the entropy introduced by uppercase and lowercase characters is created by users who exceed the minimum requirements of the password strength policy. Secure password creation is complicated by the trade-off between developing passwords that are both difficult to crack and use. Accordingly, the access control policy is important. Studies show that much of the entropy introduced by large and nonalphanumeric characters is created by users who exceed the minimum requirements of the password strength policy: the use of more digits than necessary, different positions of special characters. It is concluded that text passwords remain the dominant method of authentication in computer systems, despite significant improvements, including smart cards, RFID cards, USB tokens and graphic passwords, which have their advantages and are suitable for use in a particular environment or for a specific program. It is noted that there are few published empirical studies that would examine the strategies used by users under different password policies. Further research is planned in this direction.

References

1. International Organization for Standardization. (2013). International standard ISO/IEC 27001:2013. Information technology. Security techniques. Information security management systems. Retrieved from https://www.iso.org/ru/standard/54534.html
2. Weir, M., Aggarwal, S., Collins, M., Stern, H. (2010). Testing Metrics for Password Creation Policies by Attacking Large Sets of Revealed Passwords. CCS '10: Proceedings of the 17th ACM conference on Computer and communications security, 62–175. doi: 10.1145/1866307.1866327
3. Bonneau, J. (2012). Guessing human-chosen secrets (Report No. 819). University of Cambridge, Computer Laboratory. Retrieved from https://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-819.pdf
4. Nayak, A., Bansode, R. (2016). Analysis of Knowledge Based Authentication System Using Persuasive Cued Click Points. 7th International Conference on Communication, Computing and Virtualization 2016, 553–560. doi: 10.1016/j.procs.2016.03.070
5. Chiasson, S., Stobert, E., Forget, A., Biddle, R., Van Oorschot P. C. (2012). Persuasive Cued Click-Points Design, implementation, and evaluation of a knowledgebased authentication mechanism. IEEE Transactions on Dependable and Secure Computing, 9, 2, 222–235. doi: 10.1109/TDSC.2011.55
6. Bonneau, J. (2012). Statistical metrics for individual password strength. The 20th international conference on Security Protocols. https://doi.org/10.1007/978-3-642-35694-0_10
7. Khorev, P. B. (2019). User Authentication Based on Knowledge of Their Work on the Internet. Security, Architectures and Protocols. doi: 10.5772/intechopen.88620
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9. Rioul, O. (2015). Shannon's formula and Hartley's rule: A mathematical coincidence? AIP Conference Proceedings. V. 1641. I. 1. doi: 10.1063/1.4905969
10. Boguslavskaya, K. (2021). Nord Pass nazval 200 samykh populyarnikh paroley 2020 goda. Retrieved from https://vctr.media/samyye-rasprostranennyye-paroli2020-goda-52027

Analysis of operational actions of emergency rescue formations using the method of network planning

Ihor Neklonskyi

National University of Civil Defence of Ukraine

http://orcid.org/0000-0002-5561-4945

Serhii Ragimov

National University of Civil Defence of Ukraine

http://orcid.org/0000-0002-8639-3348

Maruna Novozhylova

M. Beketov National University of Urban Economy in Kharkiv

http://orcid.org/0000-0002-9977-7375

DOI: https://doi.org/10.52363/2524-0226-2021-34-13

Keywords: tactical capabilities, operational actions, network graph, critical path

Аnnotation

A network model of operational actions of emergency rescue teams in the elimination of the consequences of emergency situations in a graphical and mathematical representation has been developed. The use of the model makes it possible to plan or analyze the process of organizing operational actions of civil protection units, to manage the course of its implementation. This is relevant for the planned period of emergency response. The task of forming performers of individual works in the elimination of the consequences of emergency situations has been formulated. The essence of the task is reduced to the ability to choose from a variety of civil protection units the necessary performers and assign them to work. Moreover, upon the appointment, the entire complex of works was completed within a given deadline and with minimal costs. Formalization of the corresponding problem made it possible to bring it to the classical assignment problem, which is solved by Kuhn's method. The use of a dynamic programming algorithm made it possible to obtain an initial approximation of the solution of the problem at which the cost of performing a complex of emergency rescue operations will be minimal. To optimize the network graph of operational actions by reducing the length of the critical path, a dynamic programming method is proposed. The research results are synthesized into an algorithm. The implementation of the algorithm is to consistently clarify the assignments of performers to work. This makes it possible to determine the minimum costs for the implementation of the rescue plan within a given time frame (if such a solution exists), as well as to estimate the minimum time for carrying out emergency rescue operations for a given set of possible performers.

References

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