Microanalysis of Oil Shale of the Leningrad Field

2020 ◽  
Vol 854 ◽  
pp. 188-193
Author(s):  
Svetlana N. Saltykova
Keyword(s):  
Functional Groups ◽  
Oil Shale ◽  
Raw Material ◽  
Solid Fuels ◽  
Low Grade ◽  
The World ◽  
The Usa ◽  
Near Future ◽  
Scanning Electron

The development of the fuel and energy complex entails a direct increase in energy consumption and the development of fundamentally new types of resources. In the near future, it is predicted that the role of solid fuels, including low-grade ones, will increase in the country's fuel and energy balance, which is primarily due to their large reserves. Russia ranks third after the USA and Brazil in the world for this mineral and, according to the latest estimates, potential reserves of this raw material are in the order of 700,288.85 million t. The article is devoted to the analysis of the chemical composition of oil shale of the Leningrad field. The point microanalysis of oil shale was carried out on the scanning electron microscope TESCAN, and IR spectra of various functional groups that are part of the shale were obtained and analyzed. It has been revealed that the functional groups C-C, C=O, CH2, CH3, SH are typical for the organic component of the oil shale of the Leningrad field. Carbonates, silicates and hydroxides mainly represent the mineral part with impurities represented by phosphates, sulfides and sulfates.

scholarly journals Semi-coking of oil shale of the Leningrad deposit

2021 ◽  
Vol 266 ◽  
pp. 02004
Author(s):  
I.V. Litin ◽  
M.Yu. Nazarenko ◽  
S.N. Saltykova
Keyword(s):  
Oil Shale ◽  
Chemical Properties ◽  
Solid Fuels ◽  
Low Grade ◽  
Baltic Basin ◽  
Influence Of Process Parameters ◽  
The Baltic ◽  
Physical And Chemical ◽  
Near Future

Recently, there has been a growing global interest in processing low-grade types of solid fuels, such as oil shale. In the near future, the role of solid fuels in the country's fuel and energy balance is expected to increase, primarily due to their large reserves. Based on this, this work evaluates the semi – coke obtained by semi-coking low-grade types of solid combustible fossils-oil shale of the Baltic basin (Leningrad deposit). The influence of process parameters (temperature and holding time) on the physical and chemical properties of shale semi-coke was studied experimentally. Based on the data obtained, it is concluded that the obtained samples of semi-coke from oil shale and brown coal can be used as a substitute for coke in various industries and the national economy.

scholarly journals Contribution of Cyanotoxins to the Ecotoxicological Role of Lichens

Toxins ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 321
Author(s):  
Dobri Ivanov ◽  
Galina Yaneva ◽  
Irina Potoroko ◽  
Diana G. Ivanova
Keyword(s):  
Research Methods ◽  
Raw Material ◽  
Modern Times ◽  
Effective Application ◽  
The World ◽  
The Common

The fascinating world of lichens draws the attention of the researchers because of the numerous properties of lichens used traditionally and, in modern times, as a raw material for medicines and in the perfumery industry, for food and spices, for fodder, as dyes, and for other various purposes all over the world. However, lichens being widespread symbiotic entities between fungi and photosynthetic partners may acquire toxic features due to either the fungi, algae, or cyano-procaryotes producing toxins. By this way, several common lichens acquire toxic features. In this survey, recent data about the ecology, phytogenetics, and biology of some lichens with respect to the associated toxin-producing cyanoprokaryotes in different habitats around the world are discussed. Special attention is paid to the common toxins, called microcystin and nodularin, produced mainly by the Nostoc species. The effective application of a series of modern research methods to approach the issue of lichen toxicity as contributed by the cyanophotobiont partner is emphasized.

To Make a Choice You Should Know The Option Physiological and Psychological Contribution of the Female Component in National Security and Intelligence

2021 ◽  
Vol 2 (1) ◽  
pp. 36-51
Author(s):  
Sabrina Magris
Keyword(s):  
National Security ◽  
Intelligence Community ◽  
Left Behind ◽  
The World ◽  
Two Factors ◽  
Female Component ◽  
Near Future ◽  
Ways Of Being

The paper addresses the importance of the role of women in Intelligence and National Security with the specific purpose to highlight the quality of female contribution in all different domains. The world is changing and in this change, Intelligence risks being left behind as never before. An epic evolution and change are underway that will upset ways of being and ways of thinking. All this not suddenly and all this without realizing it if not after the fact. The world is changing, women “are gain the upper hand” taking over also numerically and it is not realized that a change must happen in the field of Intelligence with a space left to women, not because they are women but because of their abilities. In all domains, from strategic to an operational one. Blindness to change that many Agencies are having. And those who are making changes often do so because they are obliged by the rules but not by evaluating the concrete capability of individuals. Two factors risk being explosive if no action is taken. The paper highlights the physiological and psychological contribution of the female component in the National Security and Intelligence work, and why diversity is scientifically important to successfully conduct operational and strategic tasks. It also describes the existing lack of models, how to enlarge the interest of young girls to join the Intelligence Community, and a look into the near future regarding the training and the recruitment processes with specific regards to women.

Exhibition 58: Modern Architecture in England, Museum of Modern Art, 1937

2013 ◽  
Vol 56 ◽  
pp. 277-298 ◽  
Author(s):  
Alan Powers
Keyword(s):  
New York ◽  
Modern Art ◽  
Modern Architecture ◽  
Museum Of Modern Art ◽  
Multiple Sequence ◽  
Sequence Of Events ◽  
The World ◽  
The Usa ◽  
New Yorkers

Exhibition 58: Modern Architecture in England, held between 10 February and 7 March 1937 at the Museum of Modern Art in New York (MoMA), was a notable event. Amidst claims that ‘England leads the world in modern architectural activity’, the exhibition ‘amazed New Yorkers’ and equally surprised English commentators. However, it has not subsequently received any extended investigation. The present purpose is to look at it as a multiple sequence of events, involving other exhibitions, associated publications and the trajectories of individuals and institutions, through which tensions came to the surface about the definition and direction of Modernism in England and elsewhere. Such an analysis throws new light on issues such as the motives for staging the exhibition, the personnel involved and associated questions relating to the role of émigré architects in Britain and the USA, some of which have been misinterpreted in recent commentaries.Hitchcock's unequivocal claim for the importance of English Modernism at this point still arouses disbelief, and raises a question whether it can be accepted at face value or requires explaining in terms of some other hidden intention.

scholarly journals World corn market: analysis, trends and prospects of its deep processing

2020 ◽  
pp. 96-111
Author(s):  
Natalia Tanklevska ◽  
Viktoriia Petrenko ◽  
Alla Karnaushenko ◽  
Kateryna Melnykova
Keyword(s):  
Raw Materials ◽  
Investment Project ◽  
World Market ◽  
Raw Material ◽  
Deep Processing ◽  
Industrial Enterprises ◽  
Grain Processing ◽  
The World ◽  
The Usa ◽  
Corn Processing

Purpose. The purpose of the article is to determine the prospects of deep processing of corn in Ukraine, taking into account the restraining factors of development, on the basis of the analysis of the state and tendencies of functioning of the world market of corn. Methodology / approach. During the research, general scientific and special research methods were used, in particular: analysis and synthesis, scientific abstraction – in determining the purpose and formulating conclusions; comparative, calculation, statistical and graphical ones – in the assessment, analysis, comparison and establishment of patterns of the current state and trends in the production of corn and its deep processing; program-target one – to substantiate the factors of intensification of deep processing of corn in Ukraine. Results. The analysis was carried out and tendencies of world corn production were determined. The shares of countries-producers and countries-consumers of corn were calculated; their dynamics of changes were analyzed. Analysis of the dynamics of prices for corn grain on the Chicago Mercantile Exchange indicates that the price of raw materials is gradually declining, so agricultural enterprises that sell corn as a raw material, lose income from its production. The structure of corn use in different directions in the world was analyzed, and the structure of its use in the USA was considered in more detail. Factors of activation of deep processing of corn were identified. In Ukraine, deep grain processing as an industry is just beginning to develop, so it is worth processing corn, based on the experience of leading countries, such as the USA and China. Estimated costs for the construction of a modern plant for deep processing of corn and income from the implementation of this investment project were calculated. Originality/scientific novelty. The scientific novelty of the study is a comprehensive analysis of the world corn market; economic substantiation of expediency of corn processing in Ukraine; improving the system of factors to intensify the development of deep processing of corn in Ukraine. Practical value / implications. The practical value of the results of the study is that they will contribute to the formation of the concept of intensifying the development of deep processing of corn in Ukraine. The main results can be used by agro-industrial enterprises during the development of deep corn processing projects.

Synthesis of NPK fertilizer from low-grade phosphate raw material

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Anar Kareeva ◽  
Uilesbek Besterekov ◽  
Perizat Abdurazova ◽  
Ulzhalgas Nazarbek ◽  
Irina Pochitalkina ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Graphical Method ◽  
Raw Materials ◽  
Xrd Analysis ◽  
Raw Material ◽  
Low Grade ◽  
Phosphate Raw Material ◽  
Npk Fertilizer ◽  
Scanning Electron ◽  
Comprehensive Study

Abstract The article presents the results of studies of the process of obtaining NPK fertilizer from low-grade phosphate raw materials with P2O5 of about 18%. Phosphate raw materials were leached with a mixture of nitric-phosphoric acids with the addition of potassium carbonate, which serves as a source of potassium in the final product. The main parameters determined were the content of the main nutrients P2O5:N:K2O, temperature and time of the leaching process. According to the graphical method, the “apparent” activation energy of the heterogeneous process is found, which is equal to 3.8 kJ/mol indicates the intradiffusion nature of the process. Methods of chemical analysis, scanning electron microscopy and XRD analysis were used for a comprehensive study of raw materials and final products.

East Asian Machinery-Building Cluster

2014 ◽  
pp. 36-44
Author(s):  
V. Sokolov
Keyword(s):  
Supply Chains ◽  
East Asian ◽  
Telecommunications Industry ◽  
South East Asia ◽  
Asian Countries ◽  
The World ◽  
The Usa ◽  
Technological Level ◽  
Machinery Building

The article considers features of the East Asian machinery-building cluster. It differs from the older machinery-building clusters in West Europe and North America primarily. The share of intermediate goods in the imports of the East Asian countries is higher than the share of such goods in their exports. This results from prevalence of the assembly manufactures in their industry. The international supply chains of the region are described as follows: manufacturing parts and components in the countries of East and South-East Asia – assembly in China – exports to USA, Europe and Japan. The changes in the structure of the international supply chains in 2007–2011 are shown in the case of telecommunications industry. It is established that the structure of the telecommunications imports of the USA has changed in favor of China. The technological level of the telecommunications equipment exported from China enhanced significantly. The share of parts and components in China’s telecommunications exports increased. Imports of telecommunications equipment from Japan to USA diminished whereas its delivery from China to Japan more than doubled. This points to reduction of the role of Japan as the supplier of telecommunications equipment in the world scale.

Cancer epidemiology and public health

2021 ◽  
pp. 17-42
Author(s):  
Paolo Boffetta ◽  
Zuo-Feng Zhang ◽  
Carlo La Vecchia
Keyword(s):  
Public Health ◽  
Risk Factors ◽  
Molecular Mechanisms ◽  
Cancer Epidemiology ◽  
Attributable Risk ◽  
World Population ◽  
The World ◽  
Near Future ◽  
Epidemiology And Public Health

Neoplasms continue to dominate globally as one of the major sources of human disease and death. There are multiple modifiable causes of cancer and understanding their attributable risk factors for each cancer is of importance. This chapter covers the role of cellular and molecular mechanisms as well as the experimental and epidemiological approaches as determinants of the main cancers. Even if major discoveries in the clinical management of cancer patients will be accomplished in the near future, the changes will mainly affect the affluent part of the world population. Promising approaches focused on prevention of the known causes, reducing its consequences, notably in resource-constrained settings are highlighted.

scholarly journals Questioning orthodoxy

2005 ◽  
Vol 17 (1) ◽  
pp. 1-1
Author(s):  
DAVID WALTON
Keyword(s):  
Energy Transfer ◽  
Climate Models ◽  
Global Climate ◽  
Global Climate Models ◽  
Anthropogenic Effects ◽  
The World ◽  
The Usa ◽  
Original Question ◽  
The Moment

Recently hearing Fred Singer from the USA lecture on what he perceives to be the uncritical ways in which global change has been attributed to anthropogenic effects reminded me of the importance we should attach to those who question our current beliefs. For Fred it was not sufficient that the IPCC had engaged many of the best scientific brains in the world to reach the existing consensus; they might all be wrong because the original question or assumption was wrong. Fred was strongly challenged by the audience of Antarctic scientists, not least because some of his quotations were selective in order to initiate discussion. And we know that there are areas of considerable weakness amongst the several proxies used to compute the rate of temperature change, that we have only poorly quantified and modelled the role of clouds, energy transfer between the oceans and atmosphere, water vapour as a greenhouse gas and that we have yet to be certain that the Global Climate Models really do have all the most significant driving variables. So the IPCC conclusions are drawn on the best available evidence with complementary patterns derived from several different approaches and constitute the best we can do at the moment.

Study of the Potentiality of Residue from Kaolin Industry as Ceramic Raw Material to Produce Porcelanate Gres

2005 ◽  
Vol 498-499 ◽  
pp. 420-424
Author(s):  
M.A.F. Ramalho ◽  
Lisiane Navarro de Lima Santana ◽  
Gelmires Araújo Neves ◽  
Hélio Lucena Lira
Keyword(s):  
Public Health ◽  
Physical And Mechanical Properties ◽  
Mechanical Tests ◽  
Raw Material ◽  
X Ray Diffraction ◽  
X Ray ◽  
The Public ◽  
The World ◽  
The Impact ◽  
Scanning Electron

The recycling of industrial residues has being intensified all over the world, mainly due to the increase of the impact to the environment, and the growing volume of solid residues that put in risk the public health and degrade the natural resources. So, the aim of this work is to study the potentiality of the residue from kaolin industry, as ceramic raw material to produce porcelanate gres. A composition was formulated, mixed and forming by pressing (from 30 MPa to 50 MPa). After, it was sinterized at temperatures of 1180°C, 1200°C, 1220°C and 1240°C. The samples were submitted to physical and mechanical tests and characterized by X-ray diffraction and scanning electron microscopy. The preliminary results from physical and mechanical properties showed that the residue can be used to produce porcelanate gres according to Brasilian Norms (NBR 13818), at temperatures of 1220°C and 1240°C.

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