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Journal articles on the topic 'Firebas'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Novozhilov, V. "Some aspects of the mathematical modelling of fireballs." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 217, no. 2 (2003): 103–21. http://dx.doi.org/10.1243/095440803766612775.

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The development of large-scale fireballs is a typical result of explosions associated with accidental fuel releases in the oil and process industries. The two major mechanisms that lead to fireball formation are vapour cloud explosions and boiling liquid expanding vapour explosions (BLEVEs). An ability to model fireballs is extremely important from the point of view of safety and risk analysis. The present paper provides a state-of-the-art review of the computational techniques available for the mathematical modelling of fireballs. The emphasis is placed on computational fluid dynamics (CFD) m

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Hotová Svádová, Kateřina, Alice Exnerová, and Pavel Štys. "Gregariousness as a defence strategy of moderately defended prey: experiments with Pyrrhocoris apterus and avian predators." Behaviour 151, no. 11 (2014): 1617–40. http://dx.doi.org/10.1163/1568539x-00003208.

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Aggregations in insects carry out diverse functions, and gregariousness may also act as an antipredatory strategy, especially when combined with warning signalling. Despite many studies focused on the antipredatory function of gregariousness, there are still aspects needing further investigation: What aspects of predator behaviour are affected by prey gregariousness? Which of the antipredatory effects of aggregations are linked with aposematic coloration, and which will also work for non-aposematic prey? Does gregariousness of an aposematic species affect its mimetic relationships? We have stu

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3

Hughes, Stephen. "Green fireballs and ball lightning." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 467, no. 2129 (2010): 1427–48. http://dx.doi.org/10.1098/rspa.2010.0409.

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This paper presents evidence of an apparent connection between ball lightning and a green fireball. On the evening of the 16 May 2006 at least three fireballs were seen by many people in the skies of Queensland, Australia. One of the fireballs was seen passing over the Great Divide about 120 km west of Brisbane, and soon after, a luminous green ball about 30 cm in diameter was seen rolling down the slope of the Great Divide. A detailed description given by a witness indicates that the phenomenon was probably a highly luminous form of ball lightning. A hypothesis presented in this paper is that

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Gruenwald, Johannes. "On the significance of the external circuit, Langmuir and Bohm criterion for the stability of plasma fireballs." Journal of Technological and Space Plasmas 4, no. 1 (2023): 133–39. http://dx.doi.org/10.31281/jtsp.v4i1.28.

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This paper is devoted to studying the influence of the external circuit as well as the Langmuir and Bohm criterion on the stability of plasma fireballs. A simple mathematical model is suggested that describes why plasma fireballs can get unstable up to the point where they start pulsating. The predictions of this model are compared to measured experimental data. Furthermore, it is argued that the Bohm criterion in particular determines whether a stable plasma fireball can be formed. This adds to the current understanding that fireballs are preliminarily formed due to a change in the space char

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Komarov, A. A., R. R. Shangaraev, and I. R. Begishev. "Verification of the Methodology for Determining Thermal Loads during Fireballs Formation." Occupational Safety in Industry, no. 5 (May 2022): 15–21. http://dx.doi.org/10.24000/0409-2961-2022-5-15-21.

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An emergency scenario, in which a fireball is formed, is not uncommon. It happens as the result of rupture of the pressure vessel with the release of the superheated fuel. Hazard of the fireballs is significant thermal loads with a short lifetime. The existing methods of predicting the heat flow during the formation of the fireballs simplify the schematization of the process (assume the immobility of the ball), and, also, do not fully reflect the possible thermal loads. For this reason, the method for determining thermal loads was developed, considering the fireball movement. The purpose of th

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Peña-Asensio, Eloy, Josep Maria Trigo-Rodríguez, Maria Gritsevich, and Albert Rimola. "Accurate 3D fireball trajectory and orbit calculation using the 3D-firetoc automatic Python code." Monthly Notices of the Royal Astronomical Society 504, no. 4 (2021): 4829–40. http://dx.doi.org/10.1093/mnras/stab999.

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ABSTRACT The disruption of asteroids and comets produces cm-sized meteoroids that end up impacting the Earth’s atmosphere and producing bright fireballs that might have associated shock waves or, in geometrically favourable occasions excavate craters that put them into unexpected hazardous scenarios. The astrometric reduction of meteors and fireballs to infer their atmospheric trajectories and heliocentric orbits involves a complex and tedious process that generally requires many manual tasks. To streamline the process, we present a software package called SPMN 3D Fireball Trajectory and Orbit

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Dutta, Subham, and Pralay Kumar Karmakar. "A brief overview of diverse plasma fireballs and their dominant instabilities." Journal of Physics: Conference Series 2957, no. 1 (2025): 012018. https://doi.org/10.1088/1742-6596/2957/1/012018.

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Abstract The formation dynamics of plasma fireball structures along with their excitation mechanisms, associated triggered instabilities, and their relevance in diversified circumstances is briefly presented. It focusses mainly on six different instabilities, viz., sheath plasma instability (SPI), two-stream instability (TSI), Rayleigh-Taylor instability (RTI), potential relaxation instability (PRI), Kelvin-Helmholtz instability (KHI), and secondary ionization instability (SII). These instabilities are specifically discussed in the framework of plasma fireball formation in laboratory plasmas w

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LAM, C. S., and S. Y. LO. "INDUCED PRODUCTION OF BOSONS AND ITS APPLICATION TO CENTAURO EVENTS." International Journal of Modern Physics A 01, no. 02 (1986): 451–62. http://dx.doi.org/10.1142/s0217751x86000186.

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We derive formulas describing the induced production of bosons via fireball emissions. If the fireball volume is large, induced emission is unimportant and we get back to the usual independent emission model. Induced emission due to the Bose-Einstein statistical nature of bosons is however very important for small fireballs, from which we obtain greatly enhanced production rates and very unusual charge distributions. This can explain the cosmic ray Centauro events if the fireball has an energy density of the order of 1 TeV/(fm) 3. We suggest that this density may be feasible if preons do exist

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Spurný, Pavel, Jiří Borovička, and Lukáš Shrbený. "Automation of the Czech part of the European fireball network: equipment, methods and first results." Proceedings of the International Astronomical Union 2, S236 (2006): 121–30. http://dx.doi.org/10.1017/s1743921307003146.

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AbstractIn the last several years the manually operated fish-eye cameras in the Czech part of the European fireball Network (EN) have been gradually replaced with new generation cameras, the modern and sophisticated completely autonomous fireball observatories (AFO), which were recently developed in the Czech Republic. The main motivation for construction of this new observing system was to continue in regular fireball observations and to make these observations more complex and efficient. In this paper we briefly describe basic design and work of this new instrument and its deployment at the

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Chapman, Clark R. "Galileo observations of the impacts." International Astronomical Union Colloquium 156 (May 1996): 121–32. http://dx.doi.org/10.1017/s0252921100115489.

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Galileo observations in the UV, visible, and infrared uniquely characterize the luminous phenomena associated primarily with the early stages of the impacts of SL9 fragments—the bolide and fireball phases—because of the spacecraft's direct view of the impact sites. The single luminous events, typically 1 min in duration at near-IR wavelengths, are interpreted as initial bolide flashes in the stratosphere followed immediately by development of a fireball above the ammonia clouds, which subsequently rises, expands, and cools from ∼ 8000 K to ∼ 1000 K over the first minute. The brightnesses of th

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Shrbený, Lukáš, and Pavel Spurný. "September epsilon Perseids observed by the Czech Fireball Network." Astronomy & Astrophysics 629 (September 2019): A137. http://dx.doi.org/10.1051/0004-6361/201935900.

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We present 25 photographic fireballs belonging to the September epsilon Perseid (SPE, IAU #208) meteor shower observed by the Czech part of the European Fireball Network in 2013–2017. Exceptional high activity of bright photographic fireballs was observed in 2013, while a lower activity, but still higher than in other years, was observed in the period of 2015–2017. Physical properties of these SPE fireballs were studied and compared to other meteor showers. Perseids are found to be the closest analog to SPE. Corrected geocentric radiant of the 2013 outburst fireballs was determined for solar l

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Moreno-Ibáñez, Manuel, Maria Gritsevich, Josep M. Trigo-Rodríguez, and Elizabeth A. Silber. "Physically based alternative to the PE criterion for meteoroids." Monthly Notices of the Royal Astronomical Society 494, no. 1 (2020): 316–24. http://dx.doi.org/10.1093/mnras/staa646.

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ABSTRACT Meteoroids impacting the Earth atmosphere are commonly classified using the PE criterion. This criterion was introduced to support the identification of the fireball type by empirically linking its orbital origin and composition characteristics. Additionally, it is used as an indicator of the meteoroid tensile strength and its ability to penetrate the atmosphere. However, the level of classification accuracy of the PE criterion depends on the ability to constrain the value of the input data, retrieved from the fireball observation, required to derive the PE value. To overcome these un

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Shangaraev, R. R. "Approval of a computational method for determining thermal loads during accidents accompanied by fireballs." Pozharovzryvobezopasnost/Fire and Explosion Safety 31, no. 4 (2022): 16–26. http://dx.doi.org/10.22227/0869-7493.2022.31.04.16-26.

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Introduction. Large fires are quite often accompanied by the formation of fireballs (OSH), which create significant thermal loads. As a result of the fire coverage of a container containing an overheated liquid, a physical explosion occurs, which releases a significant amount of fuel forming a fireball. This phenomenon is dangerous because, with a short lifetime, it is capable of causing thermal injuries over considerable distances. The existing methods of predicting the consequences of a fireball, set out in various domestic regulatory documents and foreign literature, do not fully reflect th

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Glumac, Nick. "Absorption Spectroscopy Measurements in Optically Dense Explosive Fireballs Using a Modeless Broadband Dye Laser." Applied Spectroscopy 63, no. 9 (2009): 1075–80. http://dx.doi.org/10.1366/000370209789379268.

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A modeless broadband dye laser is applied to probe inside optically dense fireballs generated by high explosives using single-shot, high resolution absorption spectroscopy. Despite attenuation of the main beam by 98%, high signal-to-noise ratio absorption spectra of Al, Ti, and AlO are readily obtained at resolutions of 0.007 nm, and luminosity from the fireball is strongly rejected. Detection limits for atomic species are less than 200 ppb. The method offers good time resolution of chemistry within the fireball, and scaling laws suggest that this technique should be valid in explosives tests

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Zhou, Xing, Yongmei Hao, Jian Yang, Zhixiang Xing, Han Xue, and Yong Huang. "Study of the Thermal Radiation Hazard from a Combustible Gas Fireball Resulting from a High-Pressure Gas Pipeline Accident." Processes 11, no. 3 (2023): 886. http://dx.doi.org/10.3390/pr11030886.

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With the rapid development of high-pressure combustible gas pipelines, it brings convenience and also buries potential safety hazards. This paper presents an in-depth exploration of the thermal radiation hazards of fireball accidents caused by leakage and provides a reference for the prevention and control of this type of accident and on-site rescue. Based on the basic principle of fluid mechanics and the calculation model of the leakage rate, a three-dimensional pipeline model was constructed by FDS software to simulate the fireballs with different positions of low, middle and high. The simul

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Makarov, Dmitriy, Volodymyr Shentsov, Mike Kuznetsov, and Vladimir Molkov. "Hydrogen Tank Rupture in Fire in the Open Atmosphere: Hazard Distance Defined by Fireball." Hydrogen 2, no. 1 (2021): 134–46. http://dx.doi.org/10.3390/hydrogen2010008.

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The engineering correlations for assessment of hazard distance defined by a size of fireball after either liquid hydrogen spill combustion or high-pressure hydrogen tank rupture in a fire in the open atmosphere (both for stand-alone and under-vehicle tanks) are presented. The term “fireball size” is used for the maximum horizontal size of a fireball that is different from the term “fireball diameter” applied to spherical or semi-spherical shape fireballs. There are different reasons for a fireball to deviate from a spherical shape, e.g., in case of tank rupture under a vehicle, the non-instant

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Hirai, Yuji, Naoto Okuda, Naoki Saito, et al. "The Friction Properties of Firebrat Scales." Biomimetics 4, no. 1 (2019): 2. http://dx.doi.org/10.3390/biomimetics4010002.

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Friction is an important subject for sustainability due to problems that are associated with energy loss. In recent years, micro- and nanostructured surfaces have attracted much attention to reduce friction; however, suitable structures are still under consideration. Many functional surfaces are present in nature, such as the friction reduction surfaces of snake skins. In this study, we focused on firebrats, Thermobia domestica, which temporary live in narrow spaces, such as piled papers, so their body surface (integument) is frequently in contact with surrounding substrates. We speculate that

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Pilger, Christoph, Peter Gaebler, Patrick Hupe, Theresa Ott, and Esther Drolshagen. "Global Monitoring and Characterization of Infrasound Signatures by Large Fireballs." Atmosphere 11, no. 1 (2020): 83. http://dx.doi.org/10.3390/atmos11010083.

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Large meteoroids can be registered in infrasound recordings during their entry into the Earth’s atmosphere. A comprehensive study of 10 large fireball events of the years 2018 and 2019 highlights their detection and characterization using global infrasound arrays of the International Monitoring System (IMS) of the Comprehensive Nuclear-Test-Ban Treaty (CTBT). The study focuses on the observation and event analysis of the fireballs to estimate their respective location, yield, trajectory, and entry behavior. Signal characteristics are derived by applying the Progressive Multi-Channel Correlatio

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Sugara, Ria Dewi Hudayani, Ria Saparianingsih, and Azkia Fathia Lidinillah. "The Effectiveness of Using YouTube on Fireman Sam Channel To Improve Vocabulary Mastery in Teaching Listening." Scope : Journal of English Language Teaching 8, no. 1 (2023): 182. http://dx.doi.org/10.30998/scope.v8i1.16001.

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<p>This research is about the use of YouTube on the Fireman Sam channel to improve vocabulary skills in teaching listening. The objectives of this research are: 1) To identify the Firemans’ Sam channel improve vocabulary mastery in teaching listening; 2) To identify Firemans’ Sam Channel is effective in vocabulary mastery. This research method was a quasi-experimental in which the data collection used two tests, pretest and posttest, both of which were listening tests. Then the data were analyzed using t-test to find out whether there is a significant difference after being given treatme

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Devillepoix, Hadrien A. R., Juraj Tóth, Pavol Matlovič, et al. "A Meteor Spectroscopic Survey in the Nullarbor." Research Notes of the AAS 6, no. 7 (2022): 144. http://dx.doi.org/10.3847/2515-5172/ac81ce.

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Abstract We report the start of science operations of a meteor spectroscopic survey in the Nullarbor region, Western Australia. The observation program consists of well-proven observatories developed as part of the All-Sky Meteor Orbit System (AMOS) project. These comprise high-sensitivity all-sky imaging units, as well as spectroscopic instruments observing brighter meteors. They are co-located with Desert Fireball Network (DFN) instruments, which themselves provide high-resolution astrometry for fireballs. There are two goals for this program. One is to keep a constant watch on meteor activi

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Eichenhofer, Gerhard, Moritz Oberberg, Jörg Eisenlohr, Peter Awakowicz, and Johannes Grünwald. "Measurement of inverted n-hexane fireball properties with a Multipole Resonance Probe." Journal of Technological and Space Plasmas 3, no. 1 (2022): 109–17. http://dx.doi.org/10.31281/jtsp.v3i1.23.

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In this paper we present for the first time the measurement of inverted fireballs in a low-pressure Ar/n-hexane plasma by using a Multipole Resonance Probe. The basic plasma parameters such as electron density, electron temperature and Debye length as well as the particle collision frequency have been obtained for different experimental settings. These measurements show that inverted fireballs that are created in chemically active plasma offer advantageous properties regarding deposition techniques. Furthermore, the influence of the plasma parameters on grid bias and changes in neutral gas pre

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Li, Zhuo, Z. G. Dai, and T. Lu. "e±-rich GRB Fireball and Infrared Flashes." Symposium - International Astronomical Union 214 (2003): 331–32. http://dx.doi.org/10.1017/s0074180900194677.

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Gamma-ray bursts (GRBs) are believed to originate from ultra-relativistic fireballs, with initial Lorentz factor η ∼ 102 − 103. However very high energy photons may still suffer from γγ interaction. We show here that in a wide range of model parameters, the resulting pairs may dominate electrons associated with the fireball baryons. This may provide an explanation for the rarity of prompt optical detections. A rapid response to the GRB trigger at the IR band would detect such a strong flash.

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Belli, Giacomo, Emanuele Pace, and Emanuele Marchetti. "Detection and source parametrization of small-energy fireball events in Western Alps with ground-based infrasonic arrays." Geophysical Journal International 225, no. 3 (2021): 1518–29. http://dx.doi.org/10.1093/gji/ggab042.

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SUMMARY We present infrasound signals generated by four fireball events occurred in Western Alps between 2016 and 2019 and that were recorded by small aperture arrays at source-to-receiver distances &lt;300 km. Signals consist in a series of short-lived infrasonic arrivals that are closely spaced in time. Each arrival is identified as a cluster of detections with constant wave parameters (backazimuth and apparent velocity), that change however from cluster to cluster. These arrivals are likely generated by multiple infrasonic sources (fragmentations or hypersonic flow) along the entry traj

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Keay, Colin S. L. "Audible Fireballs and Geophysical Electrophonics." Publications of the Astronomical Society of Australia 11, no. 1 (1994): 12–15. http://dx.doi.org/10.1017/s1323358000019585.

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AbstractThe long-standing enigma of audible sound production simultaneous with the distant flight of large meteor fireballs is becoming increasingly well understood. Utilising Keay’s model linking the production of ELF/VLF electromagnetic radiation with turbulence in the fireball’s plasma trail, it has proved possible to adapt Ceplecha’s fireball model to include the criteria for turbulence and the consequent production of electrophonic sounds, yielding an excellent match with observations. It is becoming apparent that other geophysical phenomena also have the capacity to produce electrophonic

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Kokhirova, G. I., P. B. Babadzhanov, U. H. Khamroev, M. N. Latipov, and Sh B. Faizov. "Dynamical and physical features of Perseid meteoroids from Tajikistan fireball network observations." Monthly Notices of the Royal Astronomical Society 494, no. 1 (2020): 1018–26. http://dx.doi.org/10.1093/mnras/staa730.

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ABSTRACT We present the results of a study of the dynamical and physical properties of large-sized Perseid meteoroids based on optical observations. Photographic observations of the Perseid meteor shower were carried out during the maximum of its activity in 2007–2011 using the Tajikistan fireball network. Multistation images of 29 Perseids recorded during this period were processed. The atmospheric trajectories, velocities, radiants, orbits, photometric masses and densities of the meteoroids were determined using the astrometric and photometric reduction of fireball images. The initial masses

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Saha, A. C., M. M. Samanta, D. K. Pal, R. N. Nandy, and B. K. Bandopadhyay. "Energy distribution of pions in the nucleon–nucleus interaction at 70 GeV." Canadian Journal of Physics 65, no. 5 (1987): 527–29. http://dx.doi.org/10.1139/p87-073.

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Production of pions through the intermediate state called fireballs has been considered to study the energy distribution of pions in the fireball-rest system. Nikfi-R-type photoemulsion plates exposed to the 70-GeV proton beam of the Surpukhov Accelerator, Dubna, USSR, are used for this purpose. A graphical representation of the distribution of energies among the pions is shown. It is observed that this distribution closely resembles Planck's distribution of photons. Furthermore, this study reveals that the Maxwell–Boltzmann distribution deviates greatly from experimental observations. The ave

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Gruenwald, Johannes, Jacob Reynvaan, and Philip Geistlinger. "Letter: Influence of inhomogeneous electrode biasing on the plasma parameters of inverted H2 fireballs." Journal of Technological and Space Plasmas 1, no. 1 (2024): 1–4. http://dx.doi.org/10.31281/pvdgvf67.

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In this letter we present measurements of the influence on inhomogeneous electrode biasing on the basic plasma parameters of inverted fireballs in a hydrogen plasma. The measurements were performed in hydrogen because it is often used in many reactive plasmas, which are very important for technical or industrial applications. The dependence of the plasma parameters on voltages and currents on the electrodes are described in this work. It will be shown that the density profiles and the plasma potentials inside an inverted fireball can be shaped to a certain extend by asymmetric potentials on th

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Батенко, Тарас. "ON THE STUDY OF CAST-IRON FIREBACKS OF THE «COLD GOLDEN AGE» OF THE DUTCH REPUBLIC." КОНСЕНСУС, no. 1 (2025): 190–204. https://doi.org/10.31110/consensus/2025-01/190-204.

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The purpose of this study is to explore the historical, cultural, and economic role of cast-iron firebacks («firebacks») in the context of the development of the Dutch Republic during the Little Ice Age of the 17th century. Methodology. The study employs an interdisciplinary approach that combines historical analysis, iconographic research on firebacks, and climate reconstructions to examine the impact of climatic conditions on the development of production, art, and daily life in the Netherlands. Scientific novelty. For the first time, the study analyzes the design specifics and symbolism of

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Kurniawan, Wawan, Ifan Prihandi, and Nurullah Husufa. "PROTOTYPE FIREBASE AUTHENTICATION MENGGUNAKAN FITUR FIREBASE PADA APLIKASI ANDROID." JURNAL SATYA INFORMATIKA 4, no. 1 (2023): 71–78. http://dx.doi.org/10.59134/jsk.v4i1.406.

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Mengembangkan sistem otentikasi untuk aplikasi merupakan suatu hal yang relatif sulit. Akan tetapi, para developer tidak memiliki pilihan selain untuk melakukannya, dan harus siap dengan segala konsekuensi jika terjadi sebuah kesalahan dalam pembangunan sistem tersebut. Selain itu, belum terdapat perusahaan yang mau membayar pajak dan membangun aplikasi hanya untuk membuat sebuah sistem login yang baik. Firebase Authentication menawarkan kemudahan untuk para developer dalam membangun aplikasi yang memiliki proses masuk ke akun tanpa perlu mengerti permasalahan kompleks yang terjadi dibelakang

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Mbarki, Anas, Aziz Ettahir, and Abderraouf Guelzim. "Determination of The Thermal Lethality Distances Generated by The Radiative Flux Emitted by The Di-Tert-Butyl Peroxide (DTBP, C8H18O2) Fireball: Use of Characteristic Curves." IOP Conference Series: Earth and Environmental Science 1050, no. 1 (2022): 012018. http://dx.doi.org/10.1088/1755-1315/1050/1/012018.

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Abstract Di-tert-butyl peroxide or DTBP is a very dangerous organic peroxide, widely used as a modifier, cross-linking agent and polymerization initiator in the industry. Its widespread use pushes us to set up studies assessing the dangers of this product, since it has been at the origin of Bleve explosions producing fireballs with a very devastating power and thermal effects. The hazard studies of this product remain very minimal. Our work consists in determining the thermal effect distances of a resulting fireball during the rupture of a DTBP storage tank, based on the characteristic curves

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Shober, P. M., T. Jansen-Sturgeon, P. A. Bland, et al. "Using atmospheric impact data to model meteoroid close encounters." Monthly Notices of the Royal Astronomical Society 498, no. 4 (2020): 5240–50. http://dx.doi.org/10.1093/mnras/staa2559.

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ABSTRACT Based on telescopic observations of Jupiter-family comets (JFCs), there is predicted to be a paucity of objects at sub-kilometre sizes. However, several bright fireballs and some meteorites have been tenuously linked to the JFC population, showing metre-scale objects do exist in this region. In 2017, the Desert Fireball Network (DFN) observed a grazing fireball that redirected a meteoroid from an Apollo-type orbit to a JFC-like orbit. Using orbital data collected by the DFN, in this study, we have generated an artificial data set of close terrestrial encounters that come within 1.5 lu

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Gunadi, Roosevelt Joshua, Radius Tanone, and Yos Richard Beeh. "Penerapan Firebase Cloud Storage pada Aplikasi Mobile Android untuk Melakukan Penyimpanan Image Lahan Pertanian." Jurnal Teknologi Informasi 4, no. 2 (2020): 282–91. http://dx.doi.org/10.36294/jurti.v4i2.1668.

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Abstract - Speed in overcoming the problem of agriculture in agricultural areas is needed at this time to maintain and increase agricultural production. The use of android mobile phones and the internet is now very widespread in remote villages. Large and secure cloud storage media are needed to store large visual data. This research aims to design a mobile firebase cloud storage application for storing images or photos to firebase, which can be accessed quickly and safely. The method used is descriptive qualitative research and development methods. The results show that the mobile firebase cl

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Ceplecha, Zdeněk. "Meteoroid Properties from Photographic Records of Meteors and Fireballs." Symposium - International Astronomical Union 160 (1994): 343–56. http://dx.doi.org/10.1017/s0074180900046635.

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Statistical criteria based on the single-body theory enabled the distinction of different composition groups of meteoroids in the past. The new single-body model proposed by Pecina and Ceplecha (1983, 1984) is capable of determining the individual values of ablation coefficients, which has proved to be a better tool for separating meteoroids of different ablation properties. However, a significant fraction of fireballs exhibit a time-dependence of residuals, when the single-body model is applied to their photographic observations. This was recently explained by assuming sudden fragmentation at

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Kolte, Prof Roshan R. "UDMS: User Data Management System Using Firebase Cloud." International Journal for Research in Applied Science and Engineering Technology 9, no. 11 (2021): 1826–28. http://dx.doi.org/10.22214/ijraset.2021.39091.

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Abstract: This paper aims at the creation of User Data Management System using Cloud Firebase. Firebase is a relatively new Technology for handling large amount of unstructured data. It is very necessary to store and secure our important data media for future use in case of emergency as a backup. We use a firebase cloud to save and retrieve Pictures, Documents, Videos and PDF’s. The present paper discuss the design and development of “UDMS” that can help the user to store their important data. Keywords: Java, Android, Firebase, Firebase Storage.

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Churyumov, Klim, Rudolf Belevtsev, Emlen Sobotovich, Svitlana Spivak, and Tetyana Churyumova. "The physical-chemical properties of substance of the bright fireball EN171101 Turyi Remety." Proceedings of the International Astronomical Union 10, H16 (2012): 171. http://dx.doi.org/10.1017/s1743921314005262.

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AbstractIn 2007-2011 searches were conducted for mineralogical and geochemical studies of the soil in the region of fall down of a bright fireball EN171101 “Turyi Remety“ matter in Perechyn district of Transcarpathian. In the assumed location of the fall of a meteorite material for analysis was taken from the bottom of streams of Transcarpathian Mountains. In this matter we have been found numerous small magnetic spheres (microspherul) and fused segments, which have enough large sizes - up to 5 mm in diameter, which probably are fragments of the Turyi Remety meteoroid. One of the known signs o

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Cabeza-Lainez, Joseph M., Francisco Salguero-Andújar, and Inmaculada Rodríguez-Cunill. "Prevention of Hazards Induced by a Radiation Fireball through Computational Geometry and Parametric Design." Mathematics 10, no. 3 (2022): 387. http://dx.doi.org/10.3390/math10030387.

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Radiation fireballs are singular phenomena which involve severe thermal radiation and, consequently, they need to be duly assessed and prevented. Although the radiative heat transfer produced by a sphere is relatively well known, the shadowing measures implemented to control the fireball’s devastating effects have frequently posed a difficult analytical instance, mainly due to its specific configuration. The objective of this article is to develop a parametric algorithm that provides the exact radiative configuration factors for the most general case in which the fireball is located at any dis

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Kolarević, Siniša. "IMPLEMENTACIJA SERVERLESS APLIKACIJE ZA IOS UREĐAJE POMOĆU FIREBASE SERVISA." Zbornik radova Fakulteta tehničkih nauka u Novom Sadu 34, no. 09 (2019): 1587–89. http://dx.doi.org/10.24867/04be21kolarevic.

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U radu je opisano rešenje implementacije serverless aplikacije za iOS uređaje pomoću Firebase servisa. Prezentovane su i analizirane mogućnosti Firebase servisa kao BaaS (backend-as-a-service) usluge. Specificirana je i implementirana mobilna aplikacija za komentarisanje proizvoda identifikovanih barkodom za iOS uređaje pomoću usluga koje nudi Firebase BaaS servis.

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Mahali, Muhammad Izzuddin. "Smart Door Locks Based on Internet of Things Concept with mobile Backend as a Service." Elinvo (Electronics, Informatics, and Vocational Education) 1, no. 3 (2017): 171–81. http://dx.doi.org/10.21831/elinvo.v1i3.14260.

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Smart Door Locks System Based on Internet of Things Concept with Mobile Backend as s Service is the smart door locks development are supported by cloud computing technology as data storage. Methods of development that exist in this system is to combine technology (1) ESP8266 (2) Firebase and (3) Android Apps. Firebase is one of cloud-based services that are used to store data online. ESP8266 able to communicate with firebase well to process the read and write data directly using internet communication channels. Android application used to direct communication to the firebase for monitoring and

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Aqsa Raisnaldi, Yazid, Purwantoro Purwantoro, and E. Haodudin Nurkifli. "PROTOTYPE SISTEM KAMERA MENGGUNAKAN EPS32 DENGAN MODUL KAMERA OV2640 YANG BERINTEGRASI FIREBASE." JATI (Jurnal Mahasiswa Teknik Informatika) 8, no. 4 (2024): 7930–36. http://dx.doi.org/10.36040/jati.v8i4.10479.

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Dengan meningkatnya insiden pencurian, kebutuhan akan solusi keamanan rumah yang efisien menjadi semakin mendesak. Teknologi rumah pintar berbasis Internet of Things (IoT) menawarkan solusi melalui perangkat seperti ESP32-CAM dengan modul kamera OV2640 untuk pemantauan real-time. Studi ini berfokus pada integrasi ESP32-CAM dengan layanan backend Google Firebase untuk penyimpanan dan akses data gambar secara real-time. Sistem ini secara otomatis menangkap gambar ketika gerakan terdeteksi, menyimpannya di Firebase, dan menampilkannya melalui aplikasi web. Pengujian menunjukkan bahwa ESP32-CAM se

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Anandan, K., and K. Jegathish. "GENZIFY-Music Streaming Application." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 03 (2025): 1–9. https://doi.org/10.55041/ijsrem42497.

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The Genzify Music Streaming Application is a mobile application designed to provide seamless music playback while leveraging modern technologies such as Firebase, Hive, and Bloc for efficient state management. The app enables users to stream songs uploaded by an admin, manage playlists, and cache music for offline playback. Firebase Firestore stores metadata, Firebase Storage hosts audio files, and Hive facilitates local caching. The application integrates authentication, background playback, and a user-friendly interface. This journal outlines the development process, including project struct

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Hogan, Laura Reece. "Fireball." Spiritus: A Journal of Christian Spirituality 21, no. 2 (2021): 325. http://dx.doi.org/10.1353/scs.2021.0040.

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Potvin, Kyle. "Fireball." Ecotone 15, no. 1 (2019): 155. http://dx.doi.org/10.1353/ect.2019.0081.

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Goodchild, Clive. "Firedass." Air & Space Europe 2, no. 1 (2000): 96–100. http://dx.doi.org/10.1016/s1290-0958(00)80018-0.

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Parate, Prof Roshani. "Quick-Cart: A Cross-Platform Application." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 05 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem35128.

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This paper presents the development and implementation of "Quick-cart," a cross-platform food delivery application built using Flutter and Firebase. The application aims to provide a seamless user experience across both iOS and Android platforms, leveraging Flutter for unified code management and Firebase for real-time database management, authentication, and cloud functions. The study focuses on the design, architecture, and performance of the application, highlighting the advantages of using Flutter and Firebase in modern mobile application development. Through extensive testing and user fee

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Bernardino, Sabrina, and Luciano de Jesus Rodrigues de Barros. "FIREBASE E USO NAS APLICAÇÕES ANDROID E IOS." Revista Interface Tecnológica 21, no. 1 (2025): 279–87. https://doi.org/10.31510/infa.v21i1.1978.

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A plataforma Firebase foi desenvolvida para os desenvolvedores de backend na criação de aplicativos Android e iOS, de ínicio para aplicações mobile. Essa plataforma e ferramenta veio para facilitar os desenvolvedores, devido à sua facilidade ao usa-la e ao conjunto abrangente de recursos e serviços oferecidos. O objetivo do artigo é definir o Firebase, esclarecer seu funcionamento, demonstrar seu uso em aplicativos Android e iOS, comparar e mostrar a diferença entre o Realtime e Cloud Firestore, comparar e mostrar o a diferença entre o Firebase e o MySQL e mostrar o quanto a plataforma Firebas

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GROSS, KEVIN C., and GLEN P. PERRAM. "THE PHENOMENOLOGY OF HIGH EXPLOSIVE FIREBALLS FROM FIELDED SPECTROSCOPIC AND IMAGING SENSORS FOR EVENT CLASSIFICATION." International Journal of High Speed Electronics and Systems 18, no. 01 (2008): 19–29. http://dx.doi.org/10.1142/s0129156408005102.

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Conventional munitions emit intense radiation upon detonation which spans much of the electromagnetic spectrum. The phenomenology of time-resolved visible, near- and mid-IR spectra from these fast transient events is poorly understood. The observed spectrum is driven by many factors including the type, size and age of the chemical explosive, method of detonation, interaction with the environment, and the casing used to enclose the explosive. Midwave infrared emissions (1800–6000 cm -1, 1.67–5.56 μm) from a variety of conventional military munitions were collected with a Fourier transform spect

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Fadilah, Nur, Ali Ikhwan, and Muhamad Alda. "Pengembangan Sistem Informasi Perpustakaan Pada Dinas Perpustakaan dan Kearsipan Kota Medan Berbasis Android." J-SISKO TECH (Jurnal Teknologi Sistem Informasi dan Sistem Komputer TGD) 6, no. 2 (2023): 298. http://dx.doi.org/10.53513/jsk.v6i2.8228.

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Dinas Perpustakaan dan Kearsipan Kota Medan telah menggunakan teknologi informasi berbasis website untuk mengelola data anggota, mengelola data buku, peminjaman buku, pengembalian buku, dan pendaftaran anggota baru, tetapi website ini hanya bisa diakses oleh petugas atau admin perpustakaan sehingga semua proses sistem informasi yang ada, baik itu pendaftaran anggota baru, peminjaman buku maupun perpanjangan buku anggota harus mendatangi perpustakaan. Penelitian ini menggunakan metode Research and Development dalam menganalisa kebutuhan ataupun masalah yang bertujuan untuk mengembangkan suatu p

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Pradipkumar, V. Lokhande, S. Patil Prathmesh, D. Dhanawade Vrushabh, N. Patil Prathmesh, R. Shinde Shreyash, and K. D. Patil Prof. "Crop Diagnosis using Mobile Application (Agroconnect)." Research and Applications: Emerging Technologies 6, no. 2 (2024): 23–29. https://doi.org/10.5281/zenodo.11196637.

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<em>AgroConnect is an innovative mobile application designed to improve communication and knowledge sharing among farmers and agriculture officers. By leveraging the power of technology, AgroConnect simplifies the exchange of information crucial for crop management and agricultural productivity. Through the app, farmers can effortlessly upload photos of their crops, seeking expert feedback on potential diseases and receiving personalized recommendations for fertilizers. Utilizing Firebase services seamlessly integrated with Android Studio, AgroConnect ensures user security through secure sign-

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Wadkar, Mayuri Chandakant, and Priyanka Patangrao Patil. "Traditional Infrastructure vs. Firebase Infrastructure." International Journal of Trend in Scientific Research and Development Volume-2, Issue-4 (2018): 2050–53. http://dx.doi.org/10.31142/ijtsrd14550.

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Mayuri, Chandakant Wadkar, and Patangrao Patil Priyanka. "Traditional Infrastructure vs. Firebase Infrastructure." International Journal of Trend in Scientific Research and Development 2, no. 4 (2018): 2050–53. https://doi.org/10.31142/ijtsrd14550.

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The purpose of this study is to introduce everyone with the amazing features of Firebase that can be useful to rocket boost an Application. Traditionally to get best out of an app we need a huge, expensive, bulky methods or code to be used or implemented, long process of testing which consist of a server and large amount of complex codes, third party API's and even dedicated teams. This takes customer and developer quite far from their destiny of having an application which would be reliable, bug free and sustainable in long run. Google's Firebase Provides such an extraordinary aid to

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