Infrared cloud sensor at CrAO

Разнообразная инструментальная база и компромиссное расположение с точки зрения астроклимата позволяют Крымской обсерватории решать широкий спектр наблюдательных задач. Однако зимой, когда ночи самые длинные, погода часто неустойчивая и быстро меняется. В то же время для выполнения многих астрофизических исследований необходимо иметь статистику по большому количеству объектов за длительный период, что предъявляет повышенные требования к эффективности использования наблюдательного времени. Одним из современных средств, позволяющих быстрее реагировать на изменение погоды, является инфракрасный датчик облачности. В этой работе мы представляем опыт работы с датчиком MLX90614, который установлен в КрАО: характеристики устройства, особенности подключения к микрокомпьютеру Raspberry Pi, примеры программ и первые астроклиматические данные.A diverse instrument base and compromise location from the point of view of the astroclimate allows the Crimean Observatory to solve a wide range of observational problems. However, in winter, when the nights are the longest, the weather is often unstable and changes rapidly. At the same time, in order to carry out many astrophysical researches, it is necessary to have statistics on a large number of objects over a long period, which imposes higher demands on the effectiveness of using observational time. One of the modern ways to respond faster to weather changes is the infrared cloud sensor. In this work we present our experience with the MLX90614 sensor, which is installed at the CrAO, including characteristics of the device, connection to the Raspberry Pi microcomputer, sample programs and the first astroclimatic data

Dosimetry for Use in Preparedness and Response to Radiological and Nuclear Emergency

Lessons learned from responses to past radiological and nuclear emergencies have shown that more guidance is needed for assessing doses to those who were affected in emergency exposure situation. The chapter introduces system of dosimetric quantities for use in emergency preparedness and response to nuclear or radiological emergency, which includes RBE-weighted absorbed dose in tissue or organ for evaluation of the risk of severe deterministic effects, equivalent dose in tissue or organ for evaluation of the risk of stochastic effects, and effective dose for evaluation of the detriment due to undetectable stochastic effects. The chapter also provides internationally proved criteria for protection of individual in emergency exposure situation and framework of dose and risk assessment in an emergency. The special attention has been put on evaluation of available sources of dosimetric data needed for dose and risk assessment in an emergency

Sleep hygiene and its observance among USMU students

The purpose of the study is to determine the causes and analyze the possible problems that have arisen because of improper sleep management, to assess the prevalence of this problem among students of USMU aged 18 to 25 years.Цель исследования – определить причины и проанализировать возможные проблемы, возникшие в следствии неправильного ведении сна, оценить распространенность данной проблемы среди студентов УГМУ в возрасте от 18 до 25 лет

Assessing the operational efficiency of the agricultural machinery fleet at a modern agro-industrial enterprise

In the cost structure of agricultural production, fuel and lubricant costs (hereinafter referred to as FLC) account for a significant share and are subject to high price volatility, which creates substantial economic risks. The study aims to develop and test an econometric method for assessing and optimising FLC by stochastically modelling the operation costs of a heterogeneous agricultural machinery fleet. The research is based on the analysis of panel data from production reports of the Omsk Agrarian Scientific Centre for a full agricultural season. Using statistical methods, physical and operational indicators (productivity, specific fuel consumption) are integrated with simulated market price dynamics. For each machinery unit, the expected cost of cultivating one hectare and its standard deviation as a measure of risk are calculated. The paper demonstrates that different machinery models have unique economic profiles. The developed synthetic tool – the Risk – Cost matrix – allowed for an objective classification of the entire fleet, identifying highly efficient and predictable assets as well as problematic ones, which are the main source of financial risks. The proposed model is an effective tool for making differentiated managerial decisions aimed at improving the economic stability and competitiveness of agro-enterprises

Astroclimatic research at the CrAO using AZT-8 telescope images

Мы представляем описание калибровки, анализа данных, программное обеспечение и первые результаты мониторинга избранного ряда активных галактик на телескопе АЗТ-8 КрАО.We present a description of the calibration, data analysis, software and the first results of permanent monitoring of a selected number of active galaxies at the AZT-8 telescope

Commemorating the 110th anniversary of academician V.N. Boltinskiy

The conceptual issues of V.N. Boltinskiy scientific heritage are stated, his contribution to progress of tractor industry and agricultural mechanization as well as his advances in training of engineering skills for agriculture are highlighted.</jats:p

Fukushima Daiichi accident as a stress test for the national system for the protection of the public in event of severe accident at NPP

It is proposed that the circumstances of the Fukushima Daiichi nuclear accident on 11 March 2011 in Japan should be used as the framework for the stress test of the national system for the protection of public in the beyond design extension conditions at NPP. Stress tests of the public protection strategy show to what extent the national system is stable under the most unfavorable NPP conditions and give an understanding of the potential vulnerabilities and the ways to resolve them. A definition of the Fukushima stress test model has been provided, and the actions undertaken by Japanese authorities under the conditions of the Fukushima Daiichi accident have been considered as the response to this stress test. The stress test has revealed major vulnerabilities in the strategy for the protection of public in the event of an accident at an NPP, which was successfully proven many times by over a hundred exercises at different levels. The stress test showed that the principal vulnerability of protection strategy being in use in Japan in 2011 was the reliance on computer systems in the assessment of the emergency exposure for decision-making during the emergency response phase. It is proposed, that the Fukushima stress test should be used to identify the vulnerabilities in the Russian Federation's strategy for the protection of public in the event of a nuclear accident and to use the lessons learnt from the test results to perfect this strategy