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Journal articles on the topic 'Dangerous zones'
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1
Musina, V. R., I. V. Golovko, and S. Shermatova. "Type of crossing of coal waste dumps by geodynamical dangerous zones." Mining informational and analytical bulletin, no. 6-1 (May 20, 2020): 233–41. http://dx.doi.org/10.25018/0236-1493-2020-61-0-233-241.
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The paper develops the concept of the existence geodynamically dangerous zones in the earth’s crust. These zones affects to the safety of the state of engineering structures and mining operations. The concept of geodynamic zoning is used, according to which geodynamically dangerous zones occurs during the interaction of blocks of the earth’s crust of various hierarchical ranks. On the example of the East Donbass, the typification of the intersection of coal waste dumps with geodynamically dangerous zones is considered. The position of 34 burning and burnt out dumps located near the cities of Shakhty and Novoshakhtinsk, Rostov Region, their size R and the width of geodynamically dangerous zones r are taken in account. Based on the use of geodynamic zoning data, an analysis is made of the nature of the mutual arrangement of carbon rock dumps and the boundaries of blocks of the earth’s crust (geodynamically dangerous zones). It is found 4 types of intersection of the block boundaries and the body of the dumps. The intersection of the first type occurs when R> r and the location of the intersection site entirely under the dump. The intersection of the second type occurs when R <r and the location of the dump entirely in the geodynamically dangerous zone. The intersection of the third type occurs at any ratio of R and r, but the common area overlaps the geodynamically dangerous zone only partially (touch). In the fourth type of intersection, the set of common points R and r is empty (do not intersect). Typification can be used when choosing places for dumping and computer modeling of their thermal state.
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Li, Jin Kui, Yi Bin Wang, and Yue Bo Fan. "Rockburst Dangerous Area Dividing in Guo-Tun Deep Mine." Applied Mechanics and Materials 482 (December 2013): 238–41. http://dx.doi.org/10.4028/www.scientific.net/amm.482.238.
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With the development of deep coal resources, rockburst, as a kind of typical underground dynamic disaster, always threats the production safety. Before the mining design, it is very necessary to forecast the possibility of the rockburst. This paper takes the Guo-tun coal mine for the object, considering the specific geological conditions, to predict the possible dangerous area where rockburst would happen. Through the comprehensive research and analysis, the paper would divide the 1312 working face into some probalble dangerous zones, namely strong shock hazard zones and medium dangerous impact zones, during gateway driving and stopping.
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Shayakhmetov, S. F., A. V. Merinov, O. M. Zhurba, and A. N. Alekseenko. "Analysis of Distribution and Accumulation of Mobile Forms of Heavy Metals and Arsenic in Soils of the Urbanized Territory of Svirsk (Irkutsk Region)." Ecology and Industry of Russia 27, no. 9 (2023): 56–60. http://dx.doi.org/10.18412/1816-0395-2023-9-56-60.
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The analysis of heavy metals and arsenic contamination of soils of the urbanized territory of Svirsk (Irkutsk region) is presented. The features of distribution and concentration of mobile forms of elements – toxicants in soils of different functional zones of the city are revealed. It has been established that the main pollutants of the soils of Svirsk are As, Zn, Pb, Cr, Fe and Cd, which have high accumulation rates. Mainly high–contrast polyelement geochemical anomalies Fe–Pb–As–Zn– Cd–Mn and Cu with extremely dangerous pollution levels are formed in the soil cover of industrial zones. The soils of a private residential area are characterized by local contrasting four–element anomalies Zn–As–Cr–Mn with a dangerous and extremely dangerous degree of pollution, multi–storey residential sector – two-element low-contrast anomalies Cr–Cu with a dangerous and moderately dangerous ecological situation.
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Skrypnyk, N. "Dangerous invasive view Miscanthus sinensis." Interdepartmental Thematic Scientific Collection of Plant Protection and Quarantine, no. 64 (November 19, 2018): 198–202. http://dx.doi.org/10.36495/1606-9773.2018.64.198-202.
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Due to international trade, there is a real danger moving invasive species to Ukraine. In recent years, in search of a solution to the energy problem, the special attention of scientists is concentrated on a plant of miscanthus, which is new for Ukraine. The glory of this plant is extraordinary.
 The summary of Miscanthus sinensis are described. It is established that the species is not discerning conditions of growth, sometimes leaving decorative plantations forming large groups, along disturbed zones, displacing local vegetation. The grass is also extremely flammable, which increases the risk of fire in captured areas.
 The ways of its penetration into the territory of Ukraine are found out.
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Tarikhazer, Stara A. "The geographical prerequisites for the identification and prevention of dangerous geomorphological processes in the mountain geosystems of the Alpine-Himalayan belt (on the example of the Major Caucasus of Azerbaijan)." Journal of Geology, Geography and Geoecology 29, no. 1 (2020): 176–87. http://dx.doi.org/10.15421/112016.
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Destructive natural phenomena are a serious, sometimes unsolvable, regional and local environmental and socioeconomic problem. This paper presents the results of a comprehensive analysis of materials from long-term geomorphological studies in the mountainous areas on the example of the Major Caucasus of Azerbaijan. The dangerous geomorphological processes on the example of the Major Caucasus of Azerbaijan were investigated in detail using large-scale maps, satellite imagery and aerial photography. Geomorphological maps were drawn (map of mudflow hazard and map of landslide hazard in the Azerbaijani part of the Major Caucasus). The research determined the dangerous zones where landslides could cover 65–70% of the total area and outlined the zones and regularities of spread of various types of mudflow origination sites. The analysis of the manifestations of most active (with catastrophic consequences) destructive natural processes and the morphotectonic structure of the studied area showed that the their occurrence and maximum intensity was confined to the weakest plexuses of mountains – intersections of faults and fractures of various directions and orders. A technique for assessing the eco-geomorphological risk to prevent dangerous natural phenomena was offered. The technique is based on the detection of zones with intensive geomorphological processes, which are often not dangerous separately, but could have catastrophic consequences together. The results obtained during the assessment of the effect of natural and man-caused factors on the stability of montane ecosystems may be used to forecast dangerous natural phenomena and to research geodynamical dangerous geomorphological process not only in Azerbaijan, but also in other regions of the Alpine-Himalayan orogenic belt. The obtained results can be used to plan and perform economic activities, determine and minimize the hazards and risks of occurrence of dangerous natural phenomena, and forecast such phenomena in the future.
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Egüez Guevara, Pilar. "Dangerous Encounters, Ambiguous Frontiers." New West Indian Guide 90, no. 3-4 (2016): 225–56. http://dx.doi.org/10.1163/22134360-09003001.
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Dance balls, masquerades, and street carnivals functioned as frontier spaces of otherwise reprehensible encounters between people of different gender, race, and class. I examine dance as a dense point of contact in nineteenth-century Cuba by showing how dance served ruling elites as a disciplining instrument to enforce social and legal boundaries, and was simultaneously used by colonial subjects as a tactic of survival to navigate these barriers. Because dancing lent itself to situations of intimacy and mis-recognition, it challenged Cuban ruling elites’ efforts to police dancing bodies. Dance is offered as a useful methodological venue to illuminate the predicament of the colonial state in governing colonial subjects and bodies. I offer the case of colonial Cuba as a contribution to the study of contact zones and colonial intimacies in Latin America and the Caribbean, in a much-needed examination of the relationships between imperialism, sexuality, and the governance of dance.
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Kobylynska, Т. V. "Statistical Assessment of Air Emission of Dangerous Substances from Agricultural Activities: the Regional Aspect." Statistics of Ukraine 81, no. 2 (2018): 82–88. http://dx.doi.org/10.31767/su.2(81)2018.02.10.
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Results from a statistical assessment of emissions of dangerous substances from agricultural activities of enterprises by region and natural-economic zone of Ukraine are shown. A statistical analysis of emissions of dangerous substances from agricultural activities of enterprises is made by natural-economic zones: Steppe, Forest-Steppe, and Polissia. Ranking of regions by number of agricultural enterprises with emissions of dangerous substances and by scope of emissions is made. It is found that the largest scopes of emitted dangerous substances are generated by enterprises located in Forest-Steppe economic zone of Ukraine.
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Yilmaz, Murat, Mahmud Aydin, Mehmet Ersin, and Mehmet Ekinci. "Safe and dangerous zones for the superficial femoral artery in femoral surgery." Acta Orthopaedica Belgica 88, no. 3 (2022): 441–46. http://dx.doi.org/10.52628/88.3.9623.
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The proximity of the superficial femoral artery (SFA) to the femur exposes the SFA to risks that have serious complications. Although surgeons have used the lateral or medial approach to lessen these risks, they have not been eliminated. Therefore, this study aimed to identify dangerous and safe zones in terms of the SFA that can be used during femoral surgical procedures, using anatomical reference points. Computed tomography angiography (CTA) of 50 patients aged between 16 and 60 years obtained from the local institution’s database was examined. Radiological and clinical measurements were performed to determine the position of the SFA relative to the femur. The mean age of the patients included in this study was 38.08 ± 9.44 (16–60) years. The average ratio of the distance between the proximal and distal borders of the dangerous zone and the lateral joint spaces (LJS) to the distance between the greater trochanter (GT) and LJS was 0.5722 ± 0.053, respectively. The average ratio of the distance between the end of the dangerous zone and LJS to the distance between the GT and LJS was 0.4108 ± 0.05026. This study found that 40% and 60% of the clinically measured distance between the GT and LJS can be used to determine safe and dangerous zones during femoral surgery. Additionally, the half distance between the anterior superior iliac spine (ASIS) and medial joint space (MJS) and one-fourth of the distance between the ASIS and LJS can be used to determine safe and dangerous zones in patients whose GT are not easily palpated.
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Merkulov, V. I., and A. S. Plyashechnik. "A Method to Bypass Dangerous Zones in the Horizontal Plane." Automation and Remote Control 80, no. 1 (2019): 124–37. http://dx.doi.org/10.1134/s0005117919010119.
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Zhang, Ke Nan, and Wan Chun Chen. "Trajectory Optimization for Hypersonic Vehicle Satisfying Maneuvering Penetration." Applied Mechanics and Materials 110-116 (October 2011): 5223–31. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.5223.
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A trajectory optimization method for hypersonic vehicle in glide phase satisfying maneuvering penetration is proposed. Divide the dangerous zones that the hypersonic vehicle may encounter during glide phase into avoidable no-fly zones and avoidless no-fly zones. Take the avoidable no-fly zones as path constraints to join the trajectory optimization. To penetrate the avoidless no-fly zones, trajectory is programmed by some maneuvering policy. Direct shooting method is used to discretize the control variable to piecewise constant functions. So the optimal control problem is transferred to a nonlinear programming (NLP) problem, and solved by the serial quadratic program (SQP) method.
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Nuriev, Ramazan Aydynovich. "Building universal storm diagrams to choose optimal route for sea vessels." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2023, no. 3 (2023): 97–103. http://dx.doi.org/10.24143/2073-1574-2023-3-97-103.
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The paper considers the problem of choosing the optimal route for a sea vessel and the need to build universal storm diagrams that would show the possibility of avoiding the dangers of stormy navigation and at the same time make it possible to provide proper seaworthiness in bad weather conditions. The dangers of stormy navigation that affect the seaworthiness that a ship may encounter are described. The theoretical basis for creating this kind of diagrams is presented. A universal storm diagram was built using the Excel program, which is included in the standard Microsoft Office package. The task of choosing optimal route, taking into account the characteristics of the vessel for a particular vessel and given weather conditions, was set and solved. The characteristics of the vessel are presented. The solution was found using the constructed diagram. The zones of resonances of the main types of the ship's roll, the zone of parametric resonance, the zone of broaching and also predicted speed of the ship in waves have been calculated. The safest and, at the same time, the most efficient route for the ship under the conditions of this problem was chosen. A comparison was made of the behavior of a particular ship calculated using the proposed diagram, and the behavior of the same ship in practice. It has been established that the dangerous zones shown in the diagram coincide with the dangerous zones obtained from observation directly on the ship. The simplicity and accessibility of the proposed method for choosing the optimal combinations of course and speed when sailing in stormy weather conditions is proved. It is concluded that when implementing the proposed ideas, it is possible to achieve an increase in the level of navigation safety and an increase in the efficiency of maritime cargo transportation, while varying various optimality criteria.
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Liu, Zheng, Xingang Li, and Xiaojing Chen. "Evacuation Traffic Management under Diffusion of Toxic Gas Based on an Improved Road Risk Level Assessment Method." Complexity 2019 (March 21, 2019): 1–11. http://dx.doi.org/10.1155/2019/6768526.
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Toxic gas leakage has diffusion characteristics and thus dynamically affects surrounding zones. Most of current evacuation traffic management models set the road risk level as a static value, which is related to the distance to the hazard source, or a dynamic value, which is determined by the toxic gas concentration. However, the toxic gas propagation direction is not considered, and this may lead some evacuees driving from less dangerous regions to higher dangerous regions. To address the shortcomings of traditional evacuation traffic management models, this paper proposes an improved road risk level assessment method based on the difference of the risk levels of upstream and downstream zones of road and develops a safer evacuation traffic management model under the diffusion of toxic gas. The Cell Transmission Model (CTM) is used to depict the evacuation traffic loading process. A numerical test is carried out on Nguyen and Dupuis Network. The test results show that the improved road risk level assessment method can avoid the evacuees driving into higher risk level regions from less dangerous regions.
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BILIAIEV, M. M., V. V. BILIAIEVA, O. V. BERLOV, P. B. MASHYKHINA, and Z. M. YAKUBOVSKA. "CALCULATION OF ATMOSPHERIC AIR POLLUTION IN CASE OF CHEMICALLY DANGEROUS SUBSTANCE SPILL." Ukrainian Journal of Civil Engineering and Architecture, no. 6 (January 14, 2023): 14–20. http://dx.doi.org/10.30838/j.bpsacea.2312.271222.14.907.
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Problem statement. The task of forecasting for chemical pollution areas at the industrial site during atmospheric inversion and chemically hazardous substance evaporation from the spill zone is considered. The purpose of the work is to develop a method for calculating the intensity and shape of pollution areas in the atmosphere that are formed under inversion conditions. Methodology. The three-dimensional impurity transport equation is used to calculate the atmospheric spread of chemically hazardous substances under inversion conditions, together with the M. Berland’s approach, to determine the vertical diffusion coefficient for this adverse meteorological condition. Numerical integration of the impurity transfer equation is realised using two finite-difference schemes. Both schemes are based on the splitting method. Results. An effective calculating method of atmospheric pollution areas formed during the evaporation of a chemically hazardous substance from the spill zone is proposed. A computer code to allow quick determination of these atmospheric pollution zones under inversion conditions is developed. The results of the computational experiment are presented. Scientific novelty. A method is developed to assess the size and intensity of chemical pollution zones formed in the atmosphere during inversion and evaporation of the substance from the spill area. Practical value. Based on the developed method, a code for a computational experiment to assess atmospheric pollution zones at industrial sites during emergency spills of chemically hazardous substances is generated.
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Tregubov, Oleg D., and Konstantin K. Uyagansky. "Substantiation of the Monitoring Network of Talik Zones in Urbanized Permafrost Areas Based on GPR Profiling Data (Anadyr, Chukotka)." Urban Science 8, no. 3 (2024): 94. http://dx.doi.org/10.3390/urbansci8030094.
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Modern climatic changes have an impact on the bearing capacity of permafrost soils at the base of the foundations of buildings and structures in the urbanized territories of the Arctic and Subarctic. The activation of cryogenic processes leads to the destruction of infrastructure and to social, economic, and environmental consequences for the population. Based on the results for the geothermy of frozen and thawing soil, and on the georadar profiling of the city of Anadyr, it was concluded that the main risks of permafrost degradation are associated with the spread of hydrogenic melting zones. Maps of the soil temperature in imaginary cross-sections with depths of 3, 5, and 10 m were compiled, along with maps of the capacity of thawing soils, the permafrost aquifer, and the dangerous spread zones for exogenous cryogenic processes. The total area of talik zones with a depth of 6 m or more in the urban area was 2.34 km2, or 67% of the built-up area. The system of permafrost monitoring in the territory of Anadyr was substantiated, and is based on monitoring the boundaries of talik zones. It consists of an automated network of observations of the ground temperature in 35 wells at the boundary and in the center of 20 zones of the dangerous development of exogenous cryogenic processes, as well as 12 control GPR profiles at the intersection of linear hydrogenic taliks.
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(Jason D. Cummins, Apsáalooke), Awaachia’ookaate’, and Ethan Chang. "Safe Zones, Dangerous Leadership: Decolonial Leadership in Settler-Colonial School Contexts." Journal of School Leadership 30, no. 6 (2020): 519–40. http://dx.doi.org/10.1177/1052684620951723.
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Recent studies of Indigenous educational leadership have contributed instructive conceptual insights to decolonize public schools. Building on these theoretical insights, we investigate the organizational and policy constraints leaders face when attempting to enact decolonial strategies. Combining “safety zone theory” and Critical Policy Analysis, we examine how one Apsáalooke educational leader, Cummins negotiated and challenged institutionalized practices delimiting “safe Indian-ness.” These include: (a) transactional, policy inscribed relations between schools and Native communities; and (b) tepid district implementation of pro-Native legislation, such as policies expressing a commitment to preserving Native American cultures. We convey how Cummins made, unmade, and remade new policy meanings through local leadership practices, such as creating more humanizing Apsáalooke-defined spaces for community-school engagements and orchestrating local pressure to move district leadership to fulfill policy commitments to serve Native students. Data includes 18 interviews with Apsáalooke tribal members, education policy texts, and collaborative auto-ethnographic memos. Based on these findings, we develop the notion of dangerous leadership: a decolonial leadership praxis that challenges settler–colonial conceptions of safety and negotiates material, communal, and personal threats that such acts of subversion tend to provoke. We conclude by discussing implications for dangerous leadership amid nonideal and constantly shifting settler-colonial school contexts.
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KULYGIN, V. V., D. V. MAGRITSKII, and A. V. KLESHCHENKOV. "FLOODS AND DANGEROUS SHALLOWING AT THE DON RIVER MOUTH." Meteorologiya i Gidrologiya, no. 11 (November 2024): 47–60. https://doi.org/10.52002/0130-2906-2024-11-47-60.
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The paper presents the results of a comprehensive analysis of the situation with floods (river floods, during storm surges, and mixed-type ones) and dangerous shallowing at the Don River mouth. Cases of these hydrological hazards, their long-term variability, and connection with changing hydrometeorological conditions and large-scale water management activities are analyzed. Some of the most severe floods are described in detail; approximate boundaries of the flood zones are given. Empirical relationships between the main flood parameters and hydrological conditions are presented.
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Badr, O. A., and H. A. El-Sheikh. "Environmental Hazards due to Rupture of a Liquefied Propane Pipeline." Journal of Energy Resources Technology 118, no. 1 (1996): 9–15. http://dx.doi.org/10.1115/1.2792699.
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Accidental leakages of liquefied propane from high-pressure pipelines may occur despite the use of sophisticated safety equipment and following strict monitoring procedures. Environmental impact of steady and transient leakages were considered from toxicity and flammability viewpoints for two specific scenarios of full pipe ruptures. For each case, calculated mass flow rate, velocity, and temperature of leaking gas were utilized in an EPA-based dispersion model to predict the ground level concentration profiles in the downwind and crosswind directions. For the specific pipeline conditions considered here, the first scenario of a nonjet release (a cloud) produced steady toxic and flammable zones which were about 20 times bigger than those produced in the transient case. The second scenario of a free vertical jet resulted in the formation of a flammable vertical plume, while at ground level it did not produce flammable nor toxic zones. A parametric study of the first scenario confirmed the expected effects of both the gas release time and the atmospheric stability on the size of the dangerous zones. Within the typical range, the wind speed was found to have opposite effects for steady and transient releases. For a steady release, the dangerous zone was wider for slower winds and vice versa for a transient case. Moreover, the size of the dangerous zone was found to be an exponential function of the pipe diameter, while the effect of the initial pipe pressure was insignificant.
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Skripka, Grigory, Olga Ivlieva, Lyudmila Bespalova, Anton Filatov, and Vladislav Saprygin. "Monitoring of dangerous shore processes of Tsimlyansk Reservoir using GIS-technologies." InterCarto. InterGIS 26, no. 2 (2020): 253–63. http://dx.doi.org/10.35595/2414-9179-2020-2-26-253-263.
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In the article, the degree of displaying dangerous exogenetic geological processes (abrasion, landslide, erosion) of the Tsimlyansk Reservoir at the present stage of reforming its shores is assessed. A new original methodology for monitoring morphological and morphometrical characteristics of different shore types of the reservoir, using unmanned aerial vehicles (UAV) and Agisoft Photoscan tooling is proposed. For a number of shore sections of the Tsimlyansk reservoir, assessment of consequence for stirring up abrasion activity being expressed in stepping back the edge of shore steeps and reducing land fund is carried out. In the automated information system of water bodies state monitoring, a compulsory index is monitoring of erosion dismemberment. Methods to carry out erosion processes monitoring in water protection zones (WPZ) of water bodies using software and apparatus complex, created on the base of UAVs and GIS-technologies are developed and tested, an optimal type of digital elevation models (DEM) for assessing erosion network density is determined. Based on series of photographs carried out by UAVs by the DEMs and orthophotomaps, created using Agisoft Photoscan software, the relief erosion forms are determined. Morphometrical characteristics of the relief erosion forms are also measured, the erosion network density (K) for a number of plots in the water protection zones of the Tsimlyansk Reservoir coast is determined. In the protection zone of the Tsimlyansk Reservoir, comprehensive analysis is carried out, assessment of demographic load on the coastal area of the reservoir is conducted. Territorial zoning according to the degree of demographic load is carried out and it will allow in the future to organize planning timely measures for protecting coastal zones. The results obtained in the course of work allowed to make conclusions for the sections of the reservoir water protection zone most subject to anthropogenic activity and to propose a package of measures for its reducing.
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Pashchenko, P. S., and O. O. Karamushka. "DETERMINATION OF THE DISLOCATED ZONES, WHICH ARE POTENTIALLY DANGEROUS ON THE OCCURRENCE OF SPONTANEOUS COMBUSTION IN THE COAL LAYERS." Odesa National University Herald. Geography and Geology 26, no. 2(39) (2022): 165–74. http://dx.doi.org/10.18524/2303-9914.2021.2(39).246201.
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Problem Statement and Purpose. The structure of the fracturing coal in the zones of geological disturbances is one of factors of origin of the gas dynamic phenomena,including spontaneous combustion of coal layers. The purpose of this work is definition of the disturbance zones, which are prone tospontaneous combustion in coal layers on the basis of application of the developeddevice and methods of selection of samples coal for determination of his propensity to spontaneous combustion and determination of the disturbance zones in coal layers after structural characteristics of coal. Data & Methods. 22 samples of coal medium catagenesis and an ear of low catagenesis from two mines of the Donetsk-Makivsky geological-industrial region of Donbas and 10 samples of coal of medium catagenesis from one mine of the Central region were researched. The selection of the disturbance zones, which are prone to spontaneous combustion in coal layers, is executed on the basis of application of the developed device and methods of selection of samples coal for determination of hispropensity to spontaneous combustion and determination of the disturbance zones in coal layers after structural characteristics of coal. The method of optical research of rocks with application of microscope of MBS‑1 was used for determination of structural characteristics of coal. Results. A device for the selection of point coal samples in the mountain making and, accordingly, method of selection of samples coal for determination of his propensity to spontaneous combustion were developed for determination of his propensity tospontaneous combustion during the leadthrough of experimental researches which are related to determination of the disturbance zones as potential zones, which are prone to spontaneous combustion in coal layers. The developed methods and device was tested at the mine of the Cent al geological-industrial region of Donbas. Samples were selected by a hand device for the selectionof point samples on a depth 1146 m in an amount 10 pieces. The amount of quasi-crystals of coal in samples was analysed and selected by optical the microscope MBS‑1, that is 2,4–4,6%, that is all of samples were selected from the disturbance zone according to the method of the determination of the disturbance zones in coal layers after structural characteristics of coal. Accordingly, plicative violation wasselected on the mine of the Central geological-industrial region on the basis of comparison of results of microscopic researches of coal from the different zones of coal layers. The data, what were got as a result of application of the developed device and methods of selection of samples coal for determination of his propensity to spontaneous combustion and determination of the disturbance zones in coal layers after structuralcharacteristics of coal, can be used for the prognosis of the disturbance zones which can be related to the origin of the gas dynamic phenomena, potential zones ofspontaneous combustion of coal layers.
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Tedeschi, Christopher, and Judith Matloff. "Reporting Safely in Crisis Zones: Medical First Response for Journalists and Filmmakers." Prehospital and Disaster Medicine 38, S1 (2023): s20. http://dx.doi.org/10.1017/s1049023x2300095x.
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Introduction:Journalists work in dangerous places. In recent years, the risk of illness and injury while reporting has increased, whether in the setting of conflict, protest, extreme weather, or environmental disaster. Journalists are targeted more than ever before. Working safely in remote and dangerous settings, especially without the protection of a large organization, requires a wide range of skills related to safety and security. For several years, the Dart Center for Journalism and Trauma at Columbia University has offered brief, intensive courses focused on personal safety, self defense, cyber-security and medical skills for freelance journalists working in dangerous settings.Method:We re-conceptualized the medical first responder portion of the Dart Center's "Reporting from Crisis Zones" course to emphasize basic skills related to acute injury and illness, from trauma resuscitation (e.g, hemorrhage control) to environmental exposure and medical illness. We identified the most common medical concerns that these learners might encounter and incorporated feedback from prior courses to develop a one-day curriculum meant to address the most pressing needs of incidental first responders with minimal medical training, and whose primary mission is not providing medical care to others.Results:The resulting 8-10 hour curriculum focuses on hemorrhage control, basic airway and respiratory maneuvers and wound care, with additional focus on medical illness, indications for evacuation, and communication and prevention techniques. The re-structured curriculum was first offered in Spring 2022. Feedback from learners was positive.Conclusion:Basic first responder skills are critical for journalists working in dangerous settings, who represent a unique population of learners with specific needs and objectives. Next steps include developing a better understanding of the medical and traumatic problems truly encountered by this population in the field, assessing the long-term educational impact of the course, and developing ongoing opportunities to reinforce learning via online resources, refresher sessions, and guideline development.
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Prokopov, Albert, Vyacheslav Zhur, and Andrey Medvedev. "Application of the cartographic method of research for the detection of the dangerous zones of mining industrial territories." MATEC Web of Conferences 196 (2018): 03009. http://dx.doi.org/10.1051/matecconf/201819603009.
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The collection, analysis and processing of information on hazardous geological processes in the city of the Shakhty of the Rostov region was carried out. On the map of the city, zones of spreading loessial subsidence soils, zones of mining operations at relatively shallow depths and the territory of man-made flooding are constructed. The areas of merging of two or more dangerous factors affecting the normal operation of mining areas are identified.
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E.O., Aiyewalehinmi. "Solid Waste Management and Disposal (A Case Study of Lokoja Metropolis, Kogi State Capital)." European Journal of Advances in Engineering and Technology 6, no. 4 (2019): 19–28. https://doi.org/10.5281/zenodo.10687563.
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<strong>ABSTRACT</strong> The purpose of this study is to investigate and analyse the standard Solid Waste Management Board Service provider in Lokoja, Kogi State Capital. The study also seeks to identify daily average quantity of waste generation, and disposal in order to suggest measures for future effective planning. A comprehensive review assessment of the past and present methods adopted indicates slight differences. Although both systems are unhygienic, dangerous to human health, labour intensive, employees are not protected including Lokoja environment. In order to consolidate Solid Waste Management Board activities, Lokoja local government was divided into Seven Zones and each zone was observed for a period of two weeks to determine the quantity of wastes generated daily and the time of disposal. The total percentage of quantities of wastes obtained in each zone are: Zone1: 8%, Zone2: 24%, Zone 3: 8%, Zone 4: 18%, Zone 5: 6%, Zone 6: 14% and Zone 7: 22%.
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Егоров, Aleksandr Egorov, Савицкая, T. Savitskaya, Сверчков, and A. Sverchkov. "Educational and Research Program Module of Forecasting of Atmospheric Air Pollution by Industrial Enterprises." Safety in Technosphere 2, no. 6 (2013): 58–63. http://dx.doi.org/10.12737/2164.
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The educational and research program module of forecasting of atmospheric air pollution by industrial enterprises has been developed. Its main opportunities and a scope are shown. The module allows calculate zones of toxic influence, zones of ignition limits concentration, and also zones of random values of concentration for concrete dangerous chemical emission. The module can be used in educational process and research practice when training bachelors, masters and graduate students to system according to three-level training in the “Technosphere safety” direction. The structure of the module and procedure of carrying out calculations with its use have been described.
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Abyzov, A. A., I. Ya Berezin, Ye Ye Rikhter, and V. I. Byvaltsev. "Movement of crawler band with elastomer wideners." Traktory i sel hozmashiny 79, no. 5 (2012): 36–38. http://dx.doi.org/10.17816/0321-4443-69400.
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Results of experimental study of mover movements of a snow-marsh buggy having a crawler equipped with elastomer widener are given. The technique is described and results of tensometric tests of widener's dangerous zones load during the buggy movement are given.
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Balazova, Renata, Jiri Hlinka, Petr Gabrlik, Alessandro Santus, and Simone Ferrari. "Enhancing UAS safety through building-induced dangerous zones prediction: concept and simulations." Aviation 28, no. 4 (2024): 279–91. https://doi.org/10.3846/aviation.2024.22718.
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This study presents a comprehensive approach to operational estimation of the zones of danger for the Unmanned Aerial Systems (UASs) generated at low altitudes in presence of buildings, aimed at ensuring their safer operation. The main tasks are three. The first one is the definition of an inboard measurement methodology appropriate and feasible for UAS that allows Eddy Dissipation Rate (EDR) estimation. An inboard setup with a lightweight and low-cost anemometer operating at a 1 Hz sampling rate, immediately usable on UAS, is proposed. The second one is the definition of empirical equations to estimate the size of dangerous areas for the UAS flights around buildings through numerical simulation. The third one is the validation of the empirical formulas in a real-world case, through the numerical simulation of a group of buildings belonging to a research centre. Results show a good resemblance in the size of the danger zones, highlighting that this multi-faceted approach contributes to enhanced safety protocols for UASs operating in urban environments.
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A. Saleh, Talib. "Using Sonic Log to Predict Abnormal Pressure Zones in Selected Oil Wells (Western of Iraq)." Iraqi Journal of Chemical and Petroleum Engineering 15, no. 2 (2014): 9–14. http://dx.doi.org/10.31699/ijcpe.2014.2.2.
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Two oil wells were tested to find the abnormal pressure zones using sonic log technique. We found that well Abu-Jir-3 and Abu-Jir-5 had an abnormal pressure zones from depth 4340 to 4520 feet and 4200 to 4600 feet, respectively. The maximum difference between obtained results and the field measured results did not exceed 2.4%.In this paper, the formation pressures were expressed in terms of pressure gradient which sometimes reached up to twice the normal pressure gradient.Drilling and developing such formations were dangerous and expensive.The plotted figures showed a clear derivation from the normal trend which confirmed the existence of abnormal pressure zones.
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Feinstein, Anthony. "6 PTSD and war photo journalists." Journal of Neurology, Neurosurgery & Psychiatry 92, no. 8 (2021): A2.2—A2. http://dx.doi.org/10.1136/jnnp-2021-bnpa.6.
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War journalism is becoming increasingly dangerous. Journalists who define their careers by longevity in war zones have a lifetime prevalence of PTSD similar to frontline combat veterans. Local journalists can also confront grave danger, but unlike foreign correspondents, they work and live in dangerous places. They too have rates of PTSD and depression that well exceed that seen in the general population. Local journalists whose families are targeted are particularly vulnerable in this regard. Journalists who chose these dangerous career paths differ cognitively from their colleagues who have chosen less adventurous careers, most notably when it comes to decisions that entail risk. The ability to manage anxiety and fear in extreme situations may to a degree be modulated by epigenetic factors.
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Chaisse, Julien. "Dangerous Liaisons: The Story of Special Economic Zones, International Investment Agreements, and Investor–State Dispute Settlement." Journal of International Economic Law 24, no. 2 (2021): 443–71. http://dx.doi.org/10.1093/jiel/jgab015.
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ABSTRACT This article focuses on the interaction and relationship between Special Economic Zones (SEZs) as facets of unilateral economic law, international investment law, and the investor–state dispute settlement (ISDS) system in a four-fold manner. It initially explains the role of international investment agreements in protecting foreign investments in these zones. Then, it classifies the public or private nature of such zones and goes on to examine related claims through past case law, to determine how modern SEZs must be created to reduce host State liability. Whilst doing so, it provides important suggestions to improve the domestic and international success of SEZs by reducing costs associated with it. In this manner, this article endeavours to highlight the need for a balance in public policy between the rights of host States and foreign investors to ensure that SEZs continue to attract significant amounts of foreign investment. It also stresses on understanding transnational foreign investment rules and the implication of the previously concluded investor–ISDS proceedings so that host States can ensure better regulation of foreign direct investment in these areas.
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Didenko, P., M. Makarenko, and I. Kupenko. "Estimation of radondanger of the prydniprovska part of Pechersk district of Kyiv." Ukrainian Geologist, no. 1(41) (January 10, 2013): 90–98. http://dx.doi.org/10.53087/ug.2013.1(41).246567.
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Background and anomalous levels of volume activity of radioactive gases in soil air were defined from the data of radioecological researches conducted by means of emanation survey on the territory of Kyiv. It was found that the higher and anomalous levels of volume activity of these gases are formed by fracture zones within the limits of which dangerous conditions may be formed for the inhabitants of the houses constructed above the zones. The area of the Prydniprovska part of Pechersk district of Kyiv has been researched in detail. Based on the levels of volume activity of radon and thoron this area is divided into two parts: the eastern part is radon-thoronsafe while the central and western ones, on the contrary, are dangerous. We think that it is connected with the submeridional radon-thoronbearing zone which exists due to presence of the fracture zone of the similar direction in the bowels. 
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Gladyr, Andrey, and Vladimir Miroshnikov. "Identification method development of focal zones based on seismic monitoring results." E3S Web of Conferences 56 (2018): 02020. http://dx.doi.org/10.1051/e3sconf/20185602020.
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Method of seismic active zones control is one of approaches of prediction of dynamic mountain pressure manifestations, which is to identify and analyze formation dynamics of seismo acoustic active zones and predict impact hazard based on revealed patterns of changes in geoacoustic activity of rock massif. The key point of this control method is the zone allocation where a potentially dangerous rock destruction source is formed. In the article, we propose an automated method for damage zone identification, based on the preliminary exclusion of background radiation by nonparametric density estimation method, the seismo acoustic active zone allocation by means of probabilistic cluster analysis and damage zone parametrization by characteristic ellipsoid selection. These tasks are part of complex geomechanical monitoring system development and are solved by upgrading and subsequent integration into the interacted software of the considered seismo acoustic active zone monitoring method. Their solution will allow to fully automate predicting dangerous state process of the controlled rock mass, improving forecast quality and significantly reducing the time spent on obtaining final result.
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Ma, Xiao Feng, Jun Deng, and Xin Hua Zhang. "A New Method to Quantitatively Partition "Three Zones" of Coal Spontaneous Combustion Based on Key Parameters." Advanced Materials Research 807-809 (September 2013): 2323–27. http://dx.doi.org/10.4028/www.scientific.net/amr.807-809.2323.
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the paper determines and calculates the parameter of coal temperature distribution rule and oxidation thermal intensity in the stage of low temperature oxidation of radiating heating, builds the mathematic model with 5 key parameters which affect the coal spontaneous combustion, newly defines a probability function to descript the coal spontaneous combustion dangerous degree, then puts forward a quantitative evaluating parameters: the different value of the indicator represents different dangerous area, a fully extinguished zone, a base extinguished zone, a heat dissipation zone and a oxidation of radiating heating zone. The results have a good accordance with the actual observations value.
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Altieri, Maria, Daniel Hashimoto, Angela María Rivera, et al. "Using Artificial Intelligence to Identify Surgical Anatomy, Safe Zones of DISSection, and Dangerous Zones of DISSection during Laparoscopic Cholecystectomy." Journal of the American College of Surgeons 231, no. 4 (2020): e21-e22. http://dx.doi.org/10.1016/j.jamcollsurg.2020.08.054.
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Voloshin, V., I. Danilyuk, A. Karpenko, and B. Kovalchuk. "Development of an optimal route planning algorithm using hot zones." Communication, informatization and cybersecurity systems and technologies 1, no. 6 (2024): 68–74. https://doi.org/10.58254/viti.6.2024.04.68.
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The authors in the article address the problem of planning optimal routes in a dynamic environment using OpenStreetMap (OSM) geographic data for the territory of Ukraine. Amid conflict situations and active hostilities, there is a need to adapt classical route-finding algorithms to account for specific terrain constraints. The main aim of the research is to develop an adaptive A* algorithm that considers high-risk areas ("hot zones") which can significantly impact the efficiency and safety of the calculated route. To achieve this goal, the authors conducted an analysis of existing shortest path search algorithms using the classic A* algorithm and its heuristic function, which considers the distance between route points. The study explores a modified version of the A* algorithm that includes an additional cost factor for "hot zones." The proposed approach introduces an adaptive multiplier that restricts route planning through dangerous areas. To validate the proposed method, OSM data containing only basic road information, without military restrictions, was used. This limitation highlights the importance of additional analysis of factors such as safety and risk in route planning. The results demonstrate the effectiveness of the developed adaptive A* algorithm in constructing routes in a dynamic environment, particularly with the ability to avoid dangerous ("hot") zones. The study's conclusions confirm that adding a cost factor in "hot zones" improves route accuracy and enhances travel safety. The developed algorithm can be applied to automated route planning in scenarios where it is crucial to consider variable risk factors and specific terrain conditions.
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Jin, Dian, Jin Liu, Zhiwei Kang, Xin Ma, and Zijun Zhang. "Oryctolagus Cuniculus Algorithm and Its Application in the Inversion Method of Asteroid Spectra Reflectance Template." Applied Sciences 13, no. 20 (2023): 11188. http://dx.doi.org/10.3390/app132011188.
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To improve the global optimization ability and convergence speed of the swarm intelligence algorithm, we proposed a new swarm intelligence optimization algorithm, namely the Oryctolagus cuniculus algorithm. This includes five mechanisms: the determination of safety zones, the cave escape, the agglomeration of Oryctolagus cuniculi, the maintenance of the Oryctolagus cuniculus king, and the zone competition. Each solution is represented by each Oryctolagus cuniculus’s position (including zone number and specific location number). The grass density and safety index at the location of the Oryctolagus cuniculus represents its fitness value. The determination of safety zones implies that predators such as eagles hunt Oryctolagus cuniculi in dangerous zones, and the zone without predators is considered a safety zone. The cave escape refers to the act of Oryctolagus cuniculi using a connected cave system to flee from a dangerous zone and reach a secure zone, thereby evading potential predators. We select the Oryctolagus cuniculus with higher fitness values as the king of each zone, and the Oryctolagus cuniculi gather towards the Oryctolagus cuniculus king. This mechanism ensures that Oryctolagus cuniculus mainly searches in zones with abundant grass and quickly finds the optimal solution. In the maintenance of the Oryctolagus cuniculus king, we choose the one with higher fitness values as the Oryctolagus cuniculus king. Zone competition is induced by an increase in the number of Oryctolagus cuniculi in zones with abundant grass by ordering the fitness values of each zone, and vice versa. We apply the Oryctolagus cuniculus algorithm to the inversion method of the asteroid spectra reflectance template. The experimental results show that compared with artificial rabbit optimization, this algorithm has a faster rate of convergence and better solution, effectively screens the reflectance template, and improves the Doppler difference velocimetry accuracy. In addition, the application of the Oryctolagus cuniculus algorithm to the knapsack problem also performs effectively.
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Nuraryo, Imam. "Risk Communication and the Prevention of COVID-19 Transmission in Dangerous Zones, Jabota." Jurnal Komunikasi: Malaysian Journal of Communication 37, no. 3 (2021): 167–85. http://dx.doi.org/10.17576/jkmjc-2021-3703-10.
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Until the beginning of June 2020, the COVID-19 virus has spread to more than 215 countries, infected more than 6 million people and killed more than 300,000 people in the world. This causes public panic and misperceptions about COVID-19. Under circumstances like this, risk communication is needed to control and mitigate information about this plague to reduce the spread of this disease and manage public fear. The main objective of this study is to assess COVID-19 information searching behaviour and explore how risk communication is associated with personal hygiene habits in preventing transmission of COVID-19 in dangerous zones. This study was conducted among a community of educators in Jakarta, Bogor, and Tangerang, Indonesia. Questionnaires were distributed to 132 respondents, consisting of lecturers and teachers who are living in the red zone area. The results showed that there was no relationship between the perception of risk communication, both on personal hygiene habits and prevention of COVID-19 transmission. This can be attributed to two possibilities. Firstly, the risk communication message strategy is seen as irrelevant to people’s personal hygiene habits and prevention of COVID-19 transmission. Secondly, personal hygiene habits and prevention of COVID-19 transmission are not influenced by risk communication from the government and at media level. Keywords: Risk communication, prevention, COVID-19, transmission, dangerous zones.
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Bentang, Anggarajati, Yatini Y., and Raharjo Wiji. "Application of K-means clustering and B-value algorithms for analysis of earthquake-dangerous zones in Java Island." International Journal of Advances in Applied Sciences (IJAAS) 13, no. 4 (2024): 907–15. https://doi.org/10.11591/ijaas.v13.i4.pp907-915.
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Java Island is an island with a high earthquake vulnerability. Therefore, earthquake mitigation measures are needed to reduce the impact of earthquakes. Earthquake mitigation is done by knowing the zones with a high risk of earthquakes and high levels of rock stress. The methods used to map earthquake-prone zones are K-means clustering and B-value. The K means clustering method can provide earthquake clusters based on their characteristics and the B-value can produce rock stress conditions in the area. The results of this study are that the K-means clustering method produces 7 earthquake clusters with 5 classifications of very low, low, medium, high, and very high. In contrast, the B-value process has a high B value with a value of 1.2-1.5 in West Java and a low B-value with a value of 0.9-1.2 in the central to the eastern part of Java.
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Zapparov, M. R., M. K. Kasenov, E. S. Auelkhan, B. T. Serikov, and S. N. Nurmukhanbet. "Dangerous geological processes on Lake Kolsai and the impact of Anthropogenic load on the DGP." Engineering Journal of Satbayev University 144, no. 4 (2022): 46–51. http://dx.doi.org/10.51301/ejsu.2022.i4.07.
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This article shows research the risks of landslide processes on the territory of Lake Kolsai, as well as the influence of anthropogenic factors on dangerous geological processes. Examples of data processing from LandSat-7,8 satellites using the Google Earth Pro program and images of the territory of Lake Kolsai using unmanned aerial vehicles are shown. The main purpose of this article is to use the analysis of data from previously carried out works to assess the conditions of zones with potentially dangerous development of landslide processes, as well as to give predictive assessments of the risks of DGP in this area. The area of research is the left side of Lake Kolsai in the northern Tien Shan, in the Kolsai Gorge, in the bridge connecting the Kungei and Zailiysky Alatau ridges. At the end of the nineteenth century, a number of major earthquakes occurred in the above-mentioned area, which caused enormous damage to the environment and to the people of the coastal areas. Subsequently, after these earthquakes, dangerous zones with a potential risk of landslide processes were formed in the study area. This article deals mainly with the left side of Lake Kolsai, which changes year after year due to the strong anthropogenic load. For this article, the collected satellite images and photographs from the UAV have been processed, interpreted and the necessary data extracted. The analysis of previously carried out works is made.
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Seshagiri Rao, M. V., Jagadeesh Bommisetty, and Chennoji Vaibhavi. "Analysis of multi-storey buildings with and without floating columns by using construction sequence analysis in different seismic zones in India." Journal of Physics: Conference Series 2779, no. 1 (2024): 012028. http://dx.doi.org/10.1088/1742-6596/2779/1/012028.
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Abstract In recent times multi-storied urban constructions require no-column space due to several reasons such as space, population, and aesthetic requirements. Especially by placing floating columns at baselevel provide us column free space for parking and free movement of vehicles. These structures often have floating columns, which can be dangerous in actives seismic zones. This study examines the detrimental impacts of floating columns in multi-storey buildings using construction sequence analysis (CSA) in different seismic zones as prescribed in Indian standard code of practice. The study compares designs of multistorey structures with and without floating columns for various seismic zones and determine storey displacement, storey shear, storey drift, Response spectrum, The findings show that installing floating columns in zones 2 and 3 is allowed, when necessary, as displacement values produced are within allowable limits. However, installing floating columns in zones 4 and 5 causes displacement values to exceed allowable ranges. To develop a safe and economically advantageous floating column construction, the structure should be strengthened with special remedial features like shear wall, bracings, and dampers.
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Polozhenets, V., and L. Nemerytska. "Phomous rot is a dangerous disease of potato tubers." Karantin i zahist roslin, no. 11-12 (December 6, 2019): 28–32. http://dx.doi.org/10.36495/2312-0614.2019.11-12.28-32.
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Goal. To establish the symptoms of pathogens of fomose rot on potato varieties of different resistance, to isolate pathogens from the genus Phoma, parasitizing on tubers and stems of plants.
 Methods. Symptoms of phomotic rot were determined visually by the determinant of diseases and the method of microbiological diagnosis was used. Pathogens were isolated from stems and tubers affected by fomose rot.
 Results. On the basis of psychopathological examination, it was experimentally proved for the first time in Ukraine that fomozna potato rot is widespread in commodity and seed potato plantings. The degree of harmfulness reaches 35%. Pathogens of the genus Phoma (Ph. Solanicola Prill. Et Del Ph tuberosa Malkomcon) affect potato stems and tubers. On the stems, the first symptoms appear as spots during the flowering phase of the plants, and on tubers the gangrene appears as round, depressed and hard spots, light or dark brown in color, on the top of which pycnids form. According to the harmfulness of the pathogen, the Polesye of Ukraine is divided into three zones: 1. The zone of strong development includes the Volyn and Zhytomyr regions, where the number of affected plants with phomosis exceeds 5%, affected tubers — 8—10%; 2. The zone of moderate development, it includes the Rivne and Khmelnitsky regions, where the number of plants affected by phomosis is 2—3%, and tubers during storage of the crop — 5—7%; 3. The zone of insignificant development of the disease includes Kiev and Chernihiv regions, where the number of plants affected by gangrene is up to 2%, and tubers after storage of the crop — up to 4%.
 Conclusions. According to the results of psychopathological surveys, three zones of development of fomose rot of potatoes (severe, moderate and minor damage to phomosis) were identified and a scheme for the development cycle of the infection of the genus Phoma (Solanicola Prill. et. Del. And Ph. Tuberosa Melh.) was established. Symptoms of fomose rot appear on the stems in the form of elongated blurry spots, on which pycnids form from light brown (Eurostar) to dark brown (Riviera) color. On potato tubers, fomosis appears in the form of round, hard, sunken spots of a dark color. It is proved that during the interaction of potato plants with pathogens of the genus Phoma complex physiological, biochemical and pathological processes occur that significantly reduce productivity, quality, taste and other economically valuable traits.
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Zimina, V. A., and I. Yu Smolin. "Analysis of residual stress in multilayer high-temperature ceramics." Izvestiya vysshikh uchebnykh zavedenii. Fizika, no. 3 (2022): 146–53. http://dx.doi.org/10.17223/00213411/65/3/146.
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Based on the obtained analytical solution, the distributions of residual stress in disc-shaped samples of a composite consisting of layers of ceramics having various composition during cooling from the sintering temperature to room temperature are investigated. It is shown that it possible to control the position of the maximum stresses varying the thickness of the layers, and the presence of the diffusion zones in the interface area reduces the magnitude of dangerous stress proportionally to the thickness of these zones. It is noted that for engineering estimates, one should use the values of the physico-mechanical characteristics of the composite components corresponding to high temperature rather than average temperature.
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Lobov, Sergey A., Alexey I. Zharinov, Valeri A. Makarov, and Victor B. Kazantsev. "Spatial Memory in a Spiking Neural Network with Robot Embodiment." Sensors 21, no. 8 (2021): 2678. http://dx.doi.org/10.3390/s21082678.
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Cognitive maps and spatial memory are fundamental paradigms of brain functioning. Here, we present a spiking neural network (SNN) capable of generating an internal representation of the external environment and implementing spatial memory. The SNN initially has a non-specific architecture, which is then shaped by Hebbian-type synaptic plasticity. The network receives stimuli at specific loci, while the memory retrieval operates as a functional SNN response in the form of population bursts. The SNN function is explored through its embodiment in a robot moving in an arena with safe and dangerous zones. We propose a measure of the global network memory using the synaptic vector field approach to validate results and calculate information characteristics, including learning curves. We show that after training, the SNN can effectively control the robot’s cognitive behavior, allowing it to avoid dangerous regions in the arena. However, the learning is not perfect. The robot eventually visits dangerous areas. Such behavior, also observed in animals, enables relearning in time-evolving environments. If a dangerous zone moves into another place, the SNN remaps positive and negative areas, allowing escaping the catastrophic interference phenomenon known for some AI architectures. Thus, the robot adapts to changing world.
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Roman, Dbar, Kiriya Mikhail, and Romanova Natali. "New data on the monitoring of dangerous invasive insect species in Abkhazia." BIO Web of Conferences 35 (2021): 00012. http://dx.doi.org/10.1051/bioconf/20213500012.
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The article presents the monitoring data of the three most dangerous invasive insect species in the territory of Abkhazia: palm borer Paysandisia archon (Burmeister), boxwood moth Cydalima perspectalis (Walker), red palm weevil Rhynchophorus ferrugineus (Olivier). All of them penetrated into Abkhazia in the period from 2014 to 2016 from the Russian Federation. The penetration of invasive species is accompanied by serious ecological and economic consequences. Pest populations show resilience and expansion of forage plant infestation zones. To control pest populations, regular pesticide treatments are required for Buxus colchica boxwood stands, as well as for all types of trees used in the green architecture of Abkhazian cities.
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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 of the thermal doses deduced from the specific model of P. Blankenhagel modeling a fireball of an organic peroxide. The authors propose a new graphical method that allows to efficiently determine the hazard zones of the effects of thermal doses, and consequently, the delimitation of the safety distances in case of an accident Bleve. The adequate utilization of this method can improve the response time of first responders in disaster areas to set up safety zones and evacuate people, and at the same time improve the safety of a large number of facilities.
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Sharova, I. N., D. B. Surkhaev, L. A. Bredgauer, et al. "Field Trial of Mobile Laboratory for Epidemiologic Survey and Indication. Communication I. Field Trial of Mobile Laboratory for Epidemiologic Survey and Indication in the Territory of Saratov Region, Stavropol Region and Kabardino-Balkaria Republic." Problems of Particularly Dangerous Infections, no. 2(100) (April 20, 2009): 30–37. http://dx.doi.org/10.21055/0370-1069-2009-2(100)-30-37.
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Presented are the results of the field trial of the mobile laboratory in different landscape and climatic zones and seasons (spring, summer, autumn, winter). Determined are performance characteristics of the mobile module while carrying out indication of bacterial and viral nature germs and express-diagnostics of dangerous infectious diseases in field conditions. Communication I contains data on approbation of the mobile laboratory in spring-summer period.
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Permyakov, V. N., and M. V. Omelchuk. "SAFETY OF STORING THE LIGHT HYDROCARBONS BROAD FRACTION." Oil and Gas Studies, no. 6 (December 30, 2015): 89–92. http://dx.doi.org/10.31660/0445-0108-2015-6-89-92.
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A share of the flashed mass of the light hydrocarbons broad fraction and the evaporation rate of the remaining fluid portion at different material storage temperature and ambient temperature is estimated in the paper. It was found out that a drop of the storage temperature and ambient temperature impedes the vapor phase generation and thereby reduces the geometrical dimensions of dangerous zones by all factors of impact.
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Lovette, Bonnie. "Back-up Detection Devices: What Do We All Need to Know? Dangerous Blind Zones." Journal of Pediatric Health Care 21, no. 2 (2007): 123–28. http://dx.doi.org/10.1016/j.pedhc.2006.12.010.
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Alexeyev, V. A., M. V. Telegina, and M. V. Tsapok. "Methodological Approach to Increasing Technical Monitoring Quality within the Zones of Chemically Dangerous Objects." Theoretical and Applied Ecology, no. 4 (December 10, 2008): 92–96. https://doi.org/10.25750/1995-4301-2008-4-092-96.
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Li, Jin, Jian Hua Li, Hao Ling, and Yong Tian Zhu. "Rapid Vehicle Scheduling for Emergency Personnel Evacuation in Disaster Rescue." Advanced Materials Research 748 (August 2013): 1235–43. http://dx.doi.org/10.4028/www.scientific.net/amr.748.1235.
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T Vehicle scheduling for personnel evacuation plays a significant role in disaster rescue. However, current vehicle scheduling methods do not meet the needs of emergency response in disaster rescue. This paper proposes a rapid vehicle scheduling method to evacuate the crowd and reduce losses in an emergent situation. We construct a specific model for vehicle scheduling problem in disaster rescue firstly, and then put forward a heuristic algorithm to solve this problem. An empirical example is used to evaluate the effectiveness of the method. Scheduling and evacuation data are computed in real-time and considerations about dangerous zones of different dangerous levels are also included in this method. The characteristics of the method make it more suitable in actual emergency rescue.
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Novikova, Svetlana A. "Assessment of the impact of vehicle emissions on the geoecological state of soils and vegetation in the cities of the Irkutsk agglomeration." RUDN Journal of Ecology and Life Safety 31, no. 4 (2023): 533–43. http://dx.doi.org/10.22363/2313-2310-2023-31-4-533-543.
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The study examines the problem of the influence of vehicle emissions on the condition of soils and vegetation of roadside strips in the cities of the Irkutsk agglomeration. Sampling was carried out near intersections characterized by intense traffic flows. As a result of a mass (semi-quantitative) full spectral analysis of selected samples, the content of heavy metals in them was revealed to be higher than the maximum permissible and background concentrations. Calculations of the total pollution indicator were carried out, which made it possible to establish that the soils of roadside zones in urbanized areas of the agglomeration belong to the categories “dangerous” and “extremely dangerous”. Recommendations for improving the geoecological condition of soils and vegetation in urban areas are given.
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Bakirova, A. D., D. V. Shalyapin, E. V. Babushkin, D. L. Bakirov, and V. G. Kuznetsov. "Well drilling in weak clay-claystone rocks: challenges and remedies." Oil and Gas Studies, no. 2 (June 2, 2020): 18–25. http://dx.doi.org/10.31660/0445-0108-2020-2-18-25.
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The maintenance safety of the wellbore in clay-claystone formations is important aim for modern investigations for companies in Western Siberia as usual. There is a lot of non-productive time to do sidetrack due to weak clay rocks. The analysis was done to solve these true challenges of the sidetrack into the different production zones. There is a lot of non-productive time for the accident responses because of wellbore lose control. For example, 50 % of drilling time has non-productive time to stabilize wellbore. There are the most effective ways to prevent losing control of wellbore: control of mud density and pressure drop variation, using of inhibitors with high effectivity, applying stabilizing bath in dangerous zones.