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Search results for: FIRE DANGER
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High-resolution fire danger forecast for Poland based on the Weather Research and Forecasting Model
PublicationDue to climate change and associated longer and more frequent droughts, the risk of forest fires increases. To address this, the Institute of Meteorology and Water Management implemented a system for forecasting fire weather in Poland. The Fire Weather Index (FWI) system, developed in Canada, has been adapted to work with meteorological fields derived from the high-resolution (2.5 km) Weather Research and Forecasting (WRF) model....
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Fire-Retardant Flexible Foamed Polyurethane (PU)-Based Composites: Armed and Charmed Ground Tire Rubber (GTR) Particles
PublicationInadequate fire resistance of polymers raises questions about their advanced applications. Flexible polyurethane (PU) foams have myriad applications but inherently suffer from very high flammability. Because of the dependency of the ultimate properties (mechanical and damping performance) of PU foams on their cellular structure, reinforcement of PU with additives brings about further concerns. Though they are highly flammable and...
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Analysis of Reliability Structures for Fire Signaling Systems in the Field of Fire Safety and Hardware Requirements
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Reliability-operational analysis of fixed gas fire extinguishing equipment integrated with fire signalling systems
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FIRE RISK ASSESSMENT IN INDUSTRIAL PREMISES
PublicationChapter presents different aspects of fire risk assessment in industrial sites
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COMMON FIRE CAUSES IN INDUSTRIAL SITES
PublicationChapter presents common causes of fires in industrial places
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Intensification of fire-fighting wastewater biotreatment
PublicationDuża ilość ścieków pożarniczych powstała w trakcie akcji gaśniczej w jednej z rafinerii w północnej Polsce w 2003 roku. Bakterie wyizolowane ze ścieków pożarniczych dodano do osadu czynnego w celu zintensyfikowania procesów biologicznych. Zbadano efektywność biologicznego oczyszczania tychże ścieków, uwzględniając nitryfikację, w laboratoryjnym reaktorze z osadem czynnym. Ok. 50 % lepszy efekt redukcji ChZT oraz ok. 40 % zmniejszenie...
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Modeling of the process of selected fire signaling systems
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INDUSTRIAL FIRE SAFETY REQUIREMENTS IN PARTNER COUNTRIES
PublicationChapter contains information regardin law regulations of fire safety for constructions in countris participating in project.
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Shooting Gas Cylinders to Prevent Their Explosion in Fire
PublicationGas cylinders in general, and particularly cylinders containing acetylene, constitute a great potential danger to fire and rescue services involved in salvage operations. Experiments show that gas cylinders with acetylene, oxygen, hydrogen, CNG, LPG or CO2 may blow after short exposition to heat with very destructive effect as fragments of blown cylinder may fly even several hundred meters. In the case of acetylene the explosion...
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Fire evacuations of public places - theory and practise
PublicationPublikacja dotyczy ewakuacji pożarowych miejsc publicznych.
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Integrate-and-fire models with an almost periodic input function
PublicationWe investigate leaky integrate-and-fire models (LIF models for short) driven by Stepanov and μ-almost periodic functions. Special attention is paid to the properties of the firing map and its displacement, which give information about the spiking behavior of the considered system. We provide conditions under which such maps are well-defined and are uniformly continuous. We show that the LIF models with Stepanov almost periodic...
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On the interspike-intervals of periodically-driven integrate-and-fire models
PublicationWe analyze properties of the firing map, which iterations give information about consecutive spikes, for periodically driven linear integrate-and-fire models. By considering locally integrable (thus in general not continuous) input functions, we generalize some results of other authors. In particular, we prove theorems concerning continuous dependence of the firing map on the input in suitable function spaces. Using mathematical...
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The critical factors of landfill fire impact on air quality
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Problems of diagnosing fire alarm systems in transport facilities
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Smart city and fire detection using thermal imaging
PublicationIn this paper, we summarize the results obtained from fire experiments. The aim of the work was to develop new methods of fire detection using IR thermal imaging cameras and dedicated image processing. We conducted 4 experiments in different configurations and with the use of different objects. The conducted experiments have shown the great usefulness of infrared cameras for detecting the seeds of a fire. Even cheap low-resolution...
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Fire Protection and Materials Flammability Control by Artificial Intelligence
PublicationFire safety has become a major challenge of materials developers because of the massive production of organic materials, often combustibles, and their use for different purposes. In this sense, fire safety is critically considered in the development of engineering materials [1, 2]. The multiplicity of parameters contributing to the development of formulation of flame-retardant materials from one side and the sustainability concerns...
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Heinrich Rickert als Danziger, Deutscher und Denker
PublicationDie zalreichen deutschen Denker auf dem Gebiet heutigen Polens, wie Heinrich Rickert aus Danzig bilden der Geschichte, die Tradizion der Platze, eine Geschichte mit der man sich auseinandersetzen sollte. Diese Beitrag zeigt wie sich die polnischen Geschichte Philosophen bemuhen, die Auffassungen ausgewahlter deutscher Denker, nach Beispiel Rickerts,und das Verstandnis ihrer Ansichten im Bezug zu deren Weltanschaungen und...
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Tire camber angle influence on tire-pavement noise
PublicationTaking into account tire-pavement noise and tires classification with respect to noise emission special measurement methods are usually used. When two of them are applied (the Laboratory Drum Method (DR) and the Close-Proximity Method (CPX)) the investigator has to be sure that the position of the tire is correct. The authors of this paper thought about tire position as tire (wheel) alignment in particular tire camber angle. They...
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Secondary Thermal Deformation Characteristics of Stiffened Plate Exposed to Fire
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Selected issues of the reliability and operational assessment of a fire alarm system
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Analysis of false alarm causes in video fire detection systems
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Selected aspects of application UAVS to recognize characteristic quantities of fire.
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Teaching methodology of the diagnosing process on the example of the fire alarm system
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The innovative approach for using pavement as a fire prevention measure in tunnels
PublicationThe paper consists of two main parts: first presents study regarding the typically used pavement structures in tunnels and the second part: the first fire trials of the poroelastic SEPOR (Safe, Eco-friendly POroelastic Road Surface) mixture which was designed to be used among other uses in tunnels. In the first part of the paper different pavement materials, such as cement concrete, asphalt concrete, stone mastic asphalt and porous...
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INDFIRES PROJECT AND SITUATIONAL INDUSTRIAL FIRE REPORTS OF PARTNER COUNTRIES
PublicationChapter contains information regarding project and situational reports from all participants.
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Genetic Positioning of Fire Stations Utilizing Grid-computing Platform
PublicationA chapter presents a model for determining near-optimal locations of fire stations based on topography of a given area and location of forests, rivers, lakes and other elements of the site. The model is based on principals of genetic algorithms and utilizes the power of the grid to distribute and execute in parallel most performance-demanding computations involved in the algorithm.
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A design concept of fire protection system for an ecological floating dock
PublicationW artykule przedstawiono możliwe do wystąpienia na doku pływającym zagrożenie pożarowe oraz projekt koncepcyjny systemu zabezpieczenia przeciwpożarowego. Projekt ten obejmuje: istalację gaśniczą wodno-hydrantową i pianową do ochrony pokładu głównego oraz instalację CO2 do ochrony siłowni, rozdzielni elektrycznej i tunelu kablowego, a także instalację wykrywania i sygnalizacji pożaru.
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TIRE/ROAD NOISE AND TIRE ROLLING RESISTANCE ON PROTOTYPE PERS SURFACE
PublicationPoroelastic road surfaces are characterized by low noise of tires running on them.Road pavements of this type are promising solution to problems related to traffic noise in cities and on rural roads. Some technical problems still have to be solved, in particular regarding durability and skid resistance on wet surface. Ongoing and planned works are to contribute to create a quiet, durable and safe road surface, which will become...
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Społeczna odpowiedzialność firm
PublicationW artykule przedstawiłem fenomenalne rozróżnienie "węższego" i "szerszego" znaczenia społecznej odpowiedzialności firm. Najpierw uwypukliłem to, że fenomeny odpowiedzialności moralnej zjawiają się w świadomości indywidualnych "osób żywotnie zainteresowanych", a także są udziałem klasy "osób żywotnie zainteresowanych" działających w firmach. Wstępnie podkreśliłem, że wszystkie "osoby żywotnie zainteresowane" (zarówno określane "pierwszoplanowymi",...
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Strategia personalna firm.
PublicationW artykule zanalizowano wpływ strategii personalnej na zarządzanie przedsiębiorstwem. Przedstawiono substrategie personalne praktykowane przez polskie firmy.
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Reliability of UAVs in Fire Services Operations. Tests and Measurements of Selected Parameters
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Risks related to car fire on innovative Poroelastic Road Surfaces-PERS
PublicationTo reduce tyre/road noise, the concept of poroelastic road surfaces (PERS) was invented. PERS is a road surface material that is porous, and at the same time, it is flexible because of the substantial amount of rubber granulate content (from 20% to 85%). The rubber and stone particles are bound by polyurethane resin instead of bitumen. It was feared that in case of fire, because of the high content of rubber and polyurethane, there...
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Numerical analysis of the influence of combustible material on the temperature field during fire
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An in-depth look at the tire rubber hardness influence on tire/road noise measurements
PublicationWhen assessing the acoustic quality of a road pavement with the close-proximity (CPX) or the on-board sound intensity (OBSI) method, the rubber hardness of the reference tire substantially affects the measurement. Practical experience shows that measurement tires can get significantly harder within a single measurement season. This is why one would like to normalize measurements to a reference rubber hardness. The recently published...
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Analysis of Interspike-Intervals for the General Class of Integrate-and-Fire Models with Periodic Drive
PublicationWe study one-dimensional integrate-and-fire models of the general type x˙=F (t, x) and analyze properties of the firing map which iterations recover consecutive spike timings. We impose very week constraints for the regularity of the function F (t, x), e.g. often it suffices to assume that F is continuous. If additionally F is periodic in t, using mathematical study of the displacement sequence of an orientation preserving circle...
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Evaluation of Fire Hazard in Electrical Installations Due to Unfavorable Ambient Thermal Conditions
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Reliability and Operating Analysis of Transmission of Alarm Signals of Distributed Fire Signaling System
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Selected Issues Associated with the Operational and Power Supply Reliability of Fire Alarm Systems
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The analysis of the operational process of a complex fire alarm system used in transport facilities
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Evaluation of fire hazard in electrical installations due to unfavorable ambient thermal conditions
PublicationEvaluation of fire hazard caused by electrical installations is a difficult and important topic, and it limits the possibility of loss of life or health of people, as well as the occurrence of significant property damage. In particular, this hazard was caused by power cables and especially photovoltaic (PV) installations. The authors proved that power cables directly exposed to strong solar radiation are likely to exceed maximum...
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Fire-induced spalling of ultra-high performance concrete: A systematic critical review
PublicationUltra-high performance concrete (UHPC) is a novel concrete class characterized by a compressive strength of more than 150 MPa. One of the most significant drawbacks of employing UHPC is that is very low permeability owing to its great compactness of dense structure increases the risk of fire-induced spalling. It is challenging for fire safety and structural engineers to predict and analyze this issue due to the lack of widely accepted...
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Under the Fire of Disinformation. Attitudes Towards Fake News in the Ukrainian Frozen War
PublicationIn this article, we examine individual attitudes towards fake news in the extreme conditions of a propaganda war, taking into account the complex regional social and historical conditions. For this purpose, within the mobile boundary zone during frozen war in Ukraine, we conducted qualitative research among representatives of generations X and Z (high school teachers and students). Being accustomed to fake news turned out to be...
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Application of RCD and AFDD in low-voltage electrical installations for protection against fire
PublicationThe paper presents the principles of application of residual current devices (RCDs) in protection against fire. The permissible rated residual operating current of RCDs is discussed. Limitations in the operation of RCDs in this type of protection are indicated. A new type of a protective device against fire – arc fault detection device (AFDD) – is described.
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Five strategies for the uncertain future
PublicationThe paper focuses on strategies of architectural education the in an era of increasing mobility, emerging alternative energy solutions and prevailing tone of uncertainty concerning future development of cities. Five strategies implemented at the Faculty of Architecture, Gdańsk University of Technology have been presented.
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Fibre Optic Probes For Ophthalmology
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Optical Fibre Technology In Poland
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Fibre-Optic pH Sensor
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Optical Fibre Technology - A Digest
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Boiling crisis - danger or a must?
PublicationW artykule przedstawiono zjawisko kryzysu wrzenia w przepływie. W głównej mierze skupiono się na zjawisku dryout'u podczas przepływu pierścieniowego. W pracy przedstawiono teoretyczny model wysychania filmu cieczowego na ściance wraz z jego modyfikacją w oparciu o model dwurównaniowy zaprezentowany przez Sedlera i Mikielewicza (1981). Model ten opiera się na bilansie cieczy w rdzeniu przepływu i w filmie cieczowym, gdzie głównym...