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Acts unlawful interference (New York): a) the approach of a captured aircraft to the building, Source: https://thoseconspiracyguys.com/september-11th-attacks/; b) ram by captured aircraft, Source: http://frontnews.eu/news/en/15837.
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El sistema de corredores BRT Mexibús es de los principales medios de transporte que articula la Zona Metropolitana del Valle de México (ZMVM) mediante los desplazamientos diarios de usuarios. A pesar de la importancia que representa dicho sistema en la movilidad urbana de la ZMVM no existe una metodología particular que evalúe la percepción en la c...
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... Modern transport is one of the main factors of man-made threats in modern society [1][2][3][4][5]. Thus, it is motor transport that is currently one of the main sources of noise pollution in the cities, while the main type of automobile noise is aerodynamic noise [6,7]. ...
The level of noise in modern cities is growing every year, the main source of it is motor transport, the number of which is constantly increasing. This study examines the main sources of noise from a running car, as well as methods for reducing it. The results of the study can be applied in the design of gas exchange and cooling systems of cars, in addition, they can be used in urban planning to reduce traffic noise in the cities.
Предложен метод повышения безопасности взаимодействия наземного и воздушного транспорта в аэропорту. Проведена оценка влияния предложенного метода на снижения риска аварий с участием наземного технологического автотранспорта и воздушных судов в аэропорту.
Описывается разработанный авторами интерактивный комплекс подготовки школьников к чрезвычайным ситуациям на дорогах и методика его применения. Комплекс позволяет смоделировать различные чрезвычайные ситуации на дорогах и получить навыки их решения. Игровая среда, создаваемая при обучении с применением разработанного комплекса, наиболее полно позволяет школьникам погрузиться в процесс обучения. Навыки, полученные в процессе обучения, создают у школьников набор компетенций, позволяющий им принимать правильные решения в чрезвычайных ситуациях на дорогах, что является жизненно важным для современных детей, которым практически ежедневно приходится сталкиваться с дорогами и автотранспортом.
Currently, tractors and other complex machines repaired at advanced repair enterprises perform worse than new ones and have a shorter overhaul life. Let us consider what losses in the quality of the car are not replenished even with a well-organized repair in compliance with the existing technical conditions and whether they are really recoverable. If during the repair the car was assembled entirely from new good-quality parts and the required technical conditions were observed during the assembly, then no loss of serviceability of the machine during repair could take place. This means that it is difficult to eliminate the losses associated with the use during repair, firstly, partially worn out (with acceptable wear and tear) and, secondly, restored parts. The experience of using agricultural machinery shows that by using maintenance and repair tools that do not require large investments, it is possible to significantly reduce the downtime of the machine and tractor fleet. With the introduction of new, more progressive technological processes into technology, an increase in the speed and power of technology, as well as with the tasks of automatic regulation and control of machines, machine designs have radically changed. along with the mechanical ones, the machines include hydraulic, pneumatic, electrical, electronic devices. The imbalance in the correction planes of the crankshafts assembled with a flywheel and clutch supplied to spare parts is 1.2-6.5 times and 1.3-10.7 times, respectively, higher than the allowable one. after grinding the main and connecting rod journals for repair dimensions, the imbalance of these assembly units is also 1.5-7.2 and 1.7-12.3 times greater than the permissible unbalance of the crankshafts and to develop recommendations for improving the balancing accuracy during engine repair.
Extensive data have been accumulated indicating that for the regions of the Far North, the most effective are opaque greenhouses with enclosing structures of sufficiently high resistance to heat transfer, providing for the cultivation of plants under artificial or joint (semi-opaque greenhouses) lighting. From 1 m of such structures, you can get 140 … 300 kg of vegetables per year. To maintain a certain air temperature in greenhouses, mainly two heating systems are used: water and air. Extensive data have been accumulated indicating that for the regions of the Far North, the most effective are opaque greenhouses with enclosing structures of sufficiently high resistance to heat transfer, providing for the cultivation of plants under artificial or joint (semi-opaque greenhouses) lighting. From 1 m of such facilities, you can get 140 … 300 kg of vegetables per year. When growing plants in cultivation rooms in winter and spring, it is necessary to artificially maintain climatic factors affecting the growth and development of plants. In this regard, the automatic regulation of these factors in accordance with the requirements of agricultural technology is of great importance. To automatically maintain the temperature in greenhouses, a two-position control system is used. Large-scale greenhouse production is currently developing along the path of introducing technologies for intensive cultivation of vegetable crops and the use of automated control systems for technological processes based on micro- and mini-computers. One of the important technological processes is watering and feeding plants with mineral fertilizers. The need to automate this process is associated with the laboriousness of the process of preparing solutions, accurately maintaining a given concentration of substances in them, timely supply and uniform dosing over the entire area of the greenhouse under various disturbances of the external environment.
