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Wyszukujesz frazę "destruction field" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
System for estimation of danger zones and safe evacuation routes in the face of bomb threat - discussion on the approach
Autorzy:
Krawczyk, T.
Tomala, R.
Powiązania:
https://bibliotekanauki.pl/articles/397809.pdf
Data publikacji:
2014
Wydawca:
Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
Tematy:
destruction field
explosives
shock wave
simulation
pole zniszczenia
materiały wybuchowe
fala uderzeniowa
symulacja
Opis:
Anti-terrorist measures taken by the police are among the most dangerous operations of the uniformed services, both in the country and beyond its borders. Trained police officers, during their duties, risk their health and lives in order to protect the citizens and their property. During an anti-terrorist operation many external factors encountered in a scene may increase assault squad’s safety and thus also affect the ultimate success of the operation. However, these factors are not always exactly known and, therefore, not taken into consideration during the planning process. One of these factors is the location of the performed action. In order to efficiently eliminate the risk, officers have to know the exact placement of a suspicious object (potential explosives) and be familiar with all features of the environment that may affect ongoing operations, such as building layout, terrain, etc. In such case, it is possible to determine safety zones and evacuation routes for the outsiders. In the absence of time, even more important factor is the planning duration. Most of the anti-terrorist operations require a swift response to the arising threat. Despite having even the most detailed information about the operation’s location, there is often no time to take full advantage of this knowledge. Therefore every second, which can be saved on action planning, might become invaluable later on. After all, the ultimate success of the operation is often dependent on its speed.
Źródło:
International Journal of Microelectronics and Computer Science; 2014, 5, 4; 155-159
2080-8755
2353-9607
Pojawia się w:
International Journal of Microelectronics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measurement of Electromagnetic Field Component Emissions as a Precursor of Emerging Hazard in Coal Mines
Autorzy:
Mydlikowski, Remigiusz
Maniak, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/308433.pdf
Data publikacji:
2019
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
coal mining
electromagnetic field
rock destruction
subsurface geophysics
Opis:
The article presents the results of research concerning electromagnetic (EM) field emitted by rocks during the process of their destruction. The paper describes a measuring stand designed for subjecting rock samples to axial crushing. During the destruction of rock samples, both components of the electromagnetic field emitted by the rock were recorded. The paper presents the results of research on hard coal samples, presenting the obtained time domain waveforms and frequency spectrum of the emitted EM field components. Further potential uses of tests concerned with EM emitted by rocks are determined. Applications registering EM field in mine environments may provide an early mine collapse warnings.
Źródło:
Journal of Telecommunications and Information Technology; 2019, 4; 30-35
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Autonomous Instrumentation for Measuring Spontaneous Electromagnetic Emissions in Mining
Autorzy:
Maniak, Krzysztof
Mydlikowski, Remigiusz
Powiązania:
https://bibliotekanauki.pl/articles/1839315.pdf
Data publikacji:
2020
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
coal mining
electromagnetic field
EM receiver
rock destruction
Opis:
This article presents the design of an innovative receiver capable of identifying electric and magnetic components of electromagnetic fields. The receiver senses and records electromagnetic disturbances generated as mine tunnels collapse. It offers excellent operating specification and the ability to sense and log magnetic and electrical component strength values in real time. The paper analyzes the data obtained with the use of a system installed in a working mine and attempts to determine hazards resulting from increased rock stress levels that, cause spontaneous EM emissions.
Źródło:
Journal of Telecommunications and Information Technology; 2020, 4; 98-103
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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