The article raises an urgent problem for large cities - the fight against the negative consequences of road transport. The importance of urban planning measures to reduce the accumulation of emissions, as well as green spaces to reduce the concentration of dust content of harmful substances in urban areas is considered. The data of CO concentration near the mainline territories in 95 studied points were analyzed.
Keywords: road transport, dust, gas-protected green areas, leaves, green spaces
The article addresses issues related to the definition of particulate matter characteristics in the air of roadside areas. Fine suspended solid particles (TPM) of different size -10 and 2.5 μm are one of the main characteristics of atmospheric air quality. When monitoring the air environment on the maintenance of the firm weighed particles two indicators are used and normalized: PM2.5, PM10 are the firm weighed particles (English Particulate Matter, PM) with an aerodynamic diameter of 2.5 microns or less; Solid suspended particles with aerodynamic diameter of 10 microns or less. Dust particles from traffic are seen as an increasingly important source of air pollution, as the vehicle fleet is increasing worldwide, hence exhaust gas emissions, as well as particles from tire abrasion and road surface wear. Studies were carried out on the dust content of the roadside territories of the city of Volgograd. The article also pays attention to air quality indices, which will be used in monitoring the air environment of urban areas.
Keywords: motor transport, dust, road dust, the firm weighed particles, PM2.5, PM10, the atmosphere, the air environment, ecology, ecology of the urbanized territories, environmental safety
An important problem of modern ecology is air pollution for most cities. Studies show that the largest danger to the human body is particles up to 10 microns in size, therefore, the content of suspended solids PM10 and PM2.5 (concentration) is controlled. The article presents the results of studies of air pollution with fine dust in the winter season
Keywords: dust, dispersed materials, suspended solids, PM2.5, PM10, atmosphere, air, ecology, ecology of urban areas, environmental safety
The questions of mathematical interpretation of results of trajectory measurements are discussed in terms of increasing the accuracy of identification of bearings of unmanned aerial vehicles during their movement in a "swarm" - a group. Variants of identification of horizontal and spatial bearings are offered. For each of the variants, criteria are proposed for identifying the belonging of the measured values to the same object in the group and the conditions for achieving them. The situation of false positives is shown. It is determined that additional identification measures are needed to eliminate false bearing triads and uncovered ambiguities, including the use of combinatorial exhaustive search algorithms. For their study, it is necessary to develop an experimental statistical model with an algorithmic description of cause-effect relationships, which is a further development of this work.
Keywords: " unmanned aerial vehicle, group of objects, bearing identification, horizontal bearing, spatial bearing, identification criteria, false notch"
The author attempts to to justify the necessary process parameters controlled aeration of grain for the purpose of drying. Applied a systematic approach. The drying process is presented in the form of interaction of the "drying agent" and "grain" layer. By using elements of information theory evaluated informative value of each of the elements in the system and the system as a whole on the basis of data on the state of the grain layer. Position aeration considered as objects with distributed parameters. It has been established that adequate process control aeration sufficient to control the parameters of drying agent inlet cereal layer.
Keywords: grain, elementary layer, active ventilation, drying, temperature, humidity, drying, agent, informative, entropy, equilibrium, bit.
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