Wyniki wyszukiwania - BazTech

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Assessment of the quality of the repair process of local roads in the rural areas of the Częstochowa and Kłobuck poviats in the context of road safety

Brycht Natalia

Production Engineering Archives

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2021

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Vol. 27, Iss. 4

232--241

EN

In recent years, numerous measures to modernize local roads in rural areas have been undertaken. Unfortunately, during renovations, especially at the poviat and commune level, errors are often made as a consequence of irregularities arising at the design stage. The article presents an assessment of the quality of local road renovations carried out in the last fifteen years, in the context of maintaining operational parameters over time, using a visual method based on the term “risk”. The research was carried out for twenty-six sections of roads that were renovated or rebuilt in the Kłobuck and Częstochowa poviats. The categories of the most common errors were identified and actions were proposed to correct them and prevent new ones. Among the negative trends, the improper placement of road technical devices and the lack of appropriate marking of integral areas were distinguished. It was found that a positive aspect in the aspect of traffic safety, recently, is the widespread use of modern road marking systems and road signs, as well as greater care for proper maintenance of drainage devices. The use of modern solutions during the modernization of roads, despite co-financing from the Government Fund, is still limited by the financial deficit of local governments.

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Metoda oceny poziomu ryzyka eksploatacji sieci gazowych

Osiadacz Andrzej J., Rudzki Andrzej

Gaz, Woda i Technika Sanitarna

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2020

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Nr 3

2--8

PL

W artykule omówiono metodę oceny ryzyka eksploatacji sieci gazowych. Jakość opracowanej metody weryfikowano na rzeczywistych gazociągach. Uzyskane wyniki potwierdzają poprawność metody.

EN

The article discusses the method of risk level assessment of gas network operation. The quality of the developed method was verified on real gas pipelines. The results confirm the correctness of the method.

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A framework for network intrusion detection using network programmability and data stream clustering machine learning algorithms

de Ribamar Lima Ribeiro Admilson, Moreno Ordonez Edward David, Alves Nascimento Anderson Clayton

Annals of Computer Science and Information Systems

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2019

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Vol. 20

57--63

EN

Several operational security mechanisms have been developed to mitigate malicious activity in the Internet. However, the most these mechanisms require a signature basis and present the inability to predict new malicious activity. Other anomaly-based mechanisms are inefficient due to the possibility of an attacker simulates legitimate traffic, which causes many false alarms. Thus, to overcome that problem, in this paper we present an anomaly-based framework that uses network programmability and machine learning algorithms over continuous data stream. Our approach overcomes the main challenges that occur when develop an anomaly-based system using machine learning techniques. We have done an experimental evaluation to demonstrate the feasibility of the proposed framework. In the experiments, we use a DDoS attack as network intrusion and we show that the technique attains an Accuracy of 98.98%, a Recall of 60%, a Precision of 60% and an FPR of 0.48% for 1% DDoS attack on the real normal traffic. This shows the effectiveness of our technique.

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Bezpieczeństwo eksploatacji stacji elektroenergetycznych SN typu PF-P

Szadkowski M., Warachim A.

Energetyka

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2014

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nr 9

518--524

PL

Opisano – na przykładzie stacji typu PF-P – wybrane aspekty bezpieczeństwa, uwzględniane w czasie projektowania, budowy i eksploatacji stacji średniego napięcia. Szczególną uwagę zwrócono na zagadnienie odporności stacji na skutki zwarć łukowych.

EN

Described are, on the example of a PF-P type substation, selected security aspects taken into account during the design, construction and operation of MV substations. Particular attention is paid to the issue of a station arc fault resistance.