Luminescent and dosimetric properties of nanostructured ceramics based on aluminum oxide

The main features of thermoluminescence (TL) of nanostructured ceramics based on anion-defective aluminum oxide have been investigated. The kinetic parameters of the TL dosimetric peak at 475 K have been determined. The possibility of using nanostructured ceramics for beta-radiation dosimetry of high doses (up to 1 kGy) with thermoluminescence of deep traps has been justified. It has been found that the light sum of the dosimetric peak decreases with an increase in the heating rate due to the temperature quenching of the luminescence. The obtained results have confirmed that the mechanism of TL quenching in anion-defective aluminum oxide is associated with the temperature dependence of the probability of the capture in deep traps, which can be caused by thermal ionization of excited states of F-centers. © 2013 Pleiades Publishing, Ltd

PARAMETERS AND INDICES OF THE COAL ASH CARBONIZATION PROCESS

In this paper, a summary table of the parameters of experiments on direct ash carbonization. The following metrics are also given: the capture capacity, which is the amount of CO2 consumed per kilogram of fly ash, and the carbonation efficiency. The table is based on a review of 9 sources.В настоящей работе приводится сводная таблица параметров проведения экспериментов по прямой карбонизации золы. Также даются следующие показатели: способность к улавливанию, которая представляет собой количество поглощаемого CO2 на килограмм летучей золы, и эффективность карбонизации. Таблица построена на основе обзора девяти зарубежных работ

Simulation of the Hydrodynamics of the Gas Flow of the NETZSCH STA 449 F3 Instrument by CFD Method

В работе представлены результаты выполнения численного моделирования участка печи прибора NETZSCH STA 449 F3 с помощью программного пакета CFD. Работа выполнялась для моделирования движения газового потока через печь термоанализатора с целью дальнейшего определения расходов газов на выходе из печи и сравнения полученных данных с экспериментальными данными.The article presents an analysis of the results of numerical simulation of the furnace section of the NETZSCH STA 449 F3 device using the CFD software package. The work was carried out in order to simulate the movement of the gas flow through the furnace of the thermal analyzer to further determine the gas flow rate at the outlet of the furnace and compare the data obtained with experimental data

REVIEW OF EXPERIMENTAL STUDIES OF DIRECT CARBONATION OF COAL ASH

The paper analyzes the literature data obtained during experiments on direct carbonation of coal ash by semi-dry and liquid methods. The following indicators were analyzed: the trapping capacity, which is the amount of CO2 sequestered per kilogram of fly ash, and carbonation efficiency. Experimental data from different authors are compared.В работе выполнен анализ данных, полученных при проведении экспериментов прямой карбонизации угольной золы полусухим и водным методами. Подвергнуты анализу следующие показатели: способность к улавливанию, которая представляет собой количество поглощаемого CO2 на килограмм летучей золы, и эффективность карбонизации. Приведено сравнение экспериментальных данных, полученных рядом авторов

THE FLOW REACTOR CALCULATION FOR THE HOT SYN-GAS DESULPHURIZATION

A flow reactor was calculated at steady state and hydrogen sulfide concentration drop along installation height depending on the total depletion of the sorbent (global conversion) is determined. Sorbent attrition was evaluated in a single pass through the reactor (local conversion). A comparison of the results with the experimental data of different authors is shown.Поточный реактор рассчитывался в стационарном режиме, определялось падение концентрации сероводорода по высоте установки в зависимости от общей истощенности сорбента (глобальная конверсия). Оценивалась истощение сорбента за один проход через реактор (локальная конверсия). Приведено сравнение расчетных данных с экспериментальными данными разных авторов

CCGT-CHP WITH A REDUCED CARBON FOOTPRINT

The issues of creating energy-efficient and environmentally friendly energy generation technologies based on fossil fuel, solid based waste is considered. A comprehensive technol-ogy has been proposed to utilize regional industrial waste together with the Thermal Power Plant CO2 emissions

Urban infant mortality and religion at the end of the nineteenth and in the early twentieth century: the case of Ekaterinburg, Russia

Modern demographers analyse regional and other infant mortality differentials as important factors behind the current life expectancy of Russian citizens. Historically, however, the Russian Empire is simply displayed as one block with high infant mortality rates. Also with respect to cultural background factors, Russia is often perceived as religiously homogeneous with the Orthodox Church dominating the country. In reality, Russia has a long history of coexisting religious traditions. This includes both provinces with a majority of Catholics, Muslims, Buddhists or shamanistic populations as well as territories characterized by religious diversity and significant minority religions. Our project studies minority religious groups in the Urals, a province by the Ural Mountains stretching into Asia. While no territory can claim to be truly representative of this mega-country, we believe that this centrally located province is well suited to show some of the Russian variety, including differential infant mortality among the followers of minority religions, which is the topic of this article. We employ church record microdata to study Catholics, Jews and Old Believers in the main metal-producing city of Ekaterinburg