DEVELOPMENT OF A WATER TEMPERATURE MAINTENANCE SYSTEM FOR RESIDENCE POOLS AT NUCLEAR POWER PLANTS

The paper presents the basic conditions for the development of a system for maintaining the water temperature in the spent fuel pool on the example of the Bilibino nuclear power plant.В работе приведены основные условия для разработки системы поддержания температуры воды в бассейне выдержки на примере Билибинской атомной электростанции

Effect of the grain size of powder targets on the spectra parametric X-ray radiation of relativistic electrons

The results of measurements of the dependence of the full width at half-maximum and the relative intensity of spectral peaks of parametric X-ray radiation (PXR) for various crystallographic planes on the grain size of a micrometer diamond powder are presente

CALCULATION OF EMERGENCY OPERATION PARAMETERS IN THE LATERAL ASYMMETRY IN THE ELECTRICAL NETWORK OF SMALL HYDROPOWER PLANTS

The results of the calculation of symmetrical components of currents and voltages, as well as the phase currents and voltages in place of asymmetric short circuits of different kinds in the electrical network SHP "Fasnalskaya". The calculation results are used in the development of pro-grams analysis of lateral asymmetry in the power grid SHP.В работе приведены результаты расчета симметричных составляющих токов и напряжений, а также фазных токов и напряжений в месте несимметричных коротких замыканий разных видов в электрической сети МГЭС «Фаснальская». Результаты расчетов использованы при разработке программы анализа поперечной несимметрии в электрической сети МГЭС

Comparative analysis of oxidative metabolism indicators at acute alcohol and acute surrogate alcohol intoxication

High level of population alcoholization is the cause of many cases of acute alcohol and alcoholic surrogate intoxication. The number of alcohol intoxication cases in Kazakhstan in 2014 amounted to 13891 (80.3 per 100 000 people), the number of fatal intoxication cases amounted to 882 (5.1 per 100 000 people). The problem of alcoholization in Russia remains urgent as well: according to the statistics of 2014,152 551 cases of acute intoxication of chemical etiology were registered, 33.9 % of cases occurred due to alcohol intoxication. Alcoholic beverages in the course of their biotransformation to acetic acid can form oxygen free radicals in particular superoxide anion as a byproduct of acetic aldehyde oxidation reaction. Studies on oxidative metabolism of ethanol intoxication are currently being conducted. At the same time, the state of oxidative metabolism during alcoholic surrogate intoxication was not practically investigated. Evaluation of oxidative metabolism depending on the severity of alcohol or its surrogate intoxication is of special interest. The aim was to compare oxidative metabolism indicators among patients with acute alcohol and alcoholic surrogate intoxication of different severity. The object of the study was blood of 62 people with diagnosed moderate or severe degrees of acute alcohol and alcoholic surrogate intoxication. Indicators of oxidative metabolism in erythrocytes and blood plasma were estimated. Significant differences were found in product concentration of protein oxidation containing bityrosine crosslinks in blood plasma under increase of alcohol intoxication degree

STUDY OF HIGHER HARMONIC COMPONENTS OF CURRENT AND VOLTAGE IN THE ELECTRIC POWER SUPPLY SYSTEM OF THE ENTERPRISE OF COLOR METALLURGY

The paper deals with a comprehensive study of the higher harmonics of current and voltage. Interphase voltages, currents in phases and total power values are calculated.В работе рассматривается комплексное исследование высших гармоник тока и напряжения. Рассчитаны межфазные напряжения, значения токов в фазах и суммарное значение мощностей

CALCULATION OF CURRENT CUTOFF OVERHEAD LINES OF 110 KV

The paper presents the calculation of the current cut-off of overhead lines of 110 kV. The paper presents the current value of the swing on the overhead lines, defined zone of protection lines, residual stress levels on tires substation Zaramagskaya HPP. Conclusions on the Use of calculated relay protection in the power system.В работе приведен расчет токовой отсечки воздушных линий напряжением 110 кВ. В работе получены значения токов качания по воздушным линиям, определены зоны защит линий, уровни остаточных напряжений на шинах подстанции Зарамагской ГЭС. Сделаны выводы по использованию рассчитанной релейной защиты в электроэнергетической системе

CALCULATION OF REMOTE PROTECTION OF OVERHEAD LINES OF 110 KV

The paper presents the calculation of the distance protection of overhead lines of 110 kV. In this work the lines of resistance and protection stage, built up by short-circuit currents. The conclusions on the use of distance protection in the power system.В работе приведен расчет дистанционной защиты воздушных линий напряжением 110 кВ. В работе определены сопротивления линий и ступени защит, отстроенные от токов короткого замыкания. Сделаны выводы по использованию дистанционной защиты в электроэнергетической системе

STUDY OF NONSINUSOIDALITY OF VOLTAGE IN THE SYSTEM OF ELECTRIC SUPPLY OF THE INDUSTRIAL ENTERPRISE

В работе приведены результаты исследования несинусоидальности напряжения в системе электроснабжения предприятия цветной металлургии. Установлено, что искажение формы напряжения происходит за счет влияния 11-й гармоники, значение коэффициента несинусоидальности напряжения которой превышает 1,5 %.The paper presents the results of a study of voltage non-sinusoidality in the power supply system of a non-ferrous metallurgy enterprise. It is established that the distortion of the voltage shape occurs due to the influence of the 11th harmonic, the value of the coefficient of non-sinusoidality of the voltage of which exceeds 1.5 %

CALCULATION OF THE INDICATORS OF THE RELIABILITY OF THE ELECTRIC POWER SYSTEM ELEMENTS OF A 110 KV

The paper discusses the main indicators of the structural reliability of the electrical network. The relative failure rate and recovery time of each air line for the entire period of operation is calculated.В работе рассматриваются основные показатели структурной надежности электрической сети. Рассчитана относительная частота отказов и время восстановления каждой воздушной линии за весь период эксплуатации

Landscape science: a Russian geographical tradition

The Russian geographical tradition of landscape science (landshaftovedenie) is analyzed with particular reference to its initiator, Lev Semenovich Berg (1876-1950). The differences between prevailing Russian and Western concepts of landscape in geography are discussed, and their common origins in German geographical thought in the late nineteenth and early twentieth centuries are delineated. It is argued that the principal differences are accounted for by a number of factors, of which Russia's own distinctive tradition in environmental science deriving from the work of V. V. Dokuchaev (1846-1903), the activities of certain key individuals (such as Berg and C. O. Sauer), and the very different social and political circumstances in different parts of the world appear to be the most significant. At the same time it is noted that neither in Russia nor in the West have geographers succeeded in specifying an agreed and unproblematic understanding of landscape, or more broadly in promoting a common geographical conception of human-environment relationships. In light of such uncertainties, the latter part of the article argues for closer international links between the variant landscape traditions in geography as an important contribution to the quest for sustainability