scholarly journals ACOUSTIC EXPRESS ANALYSIS OF QUALITATIVE AND QUANTITATIVE COMPOSITION OF SOILS DURING CONSTRUCTION WORKS

2021 ◽  
Vol 9 (4) ◽  
pp. 51-55
Author(s):  
Sergej Evtushenko ◽  
Viktoriya Lyepikhova ◽  
Nadezhda Lyashenko ◽  
Yur'evich Andrey
Keyword(s):  
Component Composition ◽  
Quantitative Composition ◽  
Soil Mixture ◽  
Qualitative And Quantitative ◽  
Emission Signal ◽  
First Approximation ◽  
Express Analysis ◽  
Main Components ◽  
Construction Works

An express analysis of the ecological state of the soil during construction works is proposed. The algorithm is considered, which is the first approximation for describing the quality of the soil mixture, serving to build a system of operational recognition of the component composition of the soil mixture and the percentage of its main components. It is based on the analysis of the forced acoustic emission signal in the frequency domain to obtain the Fourier spectrum. From the general spectrum of the signal, consisting of a set of basic and higher (timbre) harmonics, subspectrs of significant basic harmonics corresponding to certain elements of the soil mixture are distinguished. To isolate the sub-spectra, a sequence of modal harmonics is used. The composition of the set of modal harmonics determines the qualitative composition of the soil in the first approximation.

scholarly journals EFFECT OF COMPONENT COMPOSITION OF PIGMENT COMPLEX ON THE FORMATION OF COLOR OF RHUBARB AND GOOSEBERRY

2017 ◽  
Vol 6 ◽  
pp. 37-43
Author(s):  
Antonina Dubinina ◽  
Galina Selyutina ◽  
Tetiana Letuta ◽  
Tetiana Shcherbakova ◽  
Vita Afanasieva
Keyword(s):  
Raw Materials ◽  
Quantitative Characteristic ◽  
Green Light ◽  
Component Composition ◽  
Quantitative Composition ◽  
Pigment Complex ◽  
Quality Of Food ◽  
Main Components ◽  
Dark Green

The objective of present study is to determine the influence of component composition of pigment complex on the formation of color of rhubarb and gooseberry that defines consumer properties of these plant products. We report comparative study of rhubarb of the botanical varieties Monarch, Linney, Krupnochereshkovyy, Ogrski, and of gooseberry of the varieties Malachite, Pavlovsky green, Green urozhainyy, Green butylochnyy, zoned in the eastern regions of Ukraine. To determine the content of pigment complex substances of rhubarb and gooseberry, we used methodology by V.F. Gavrilenko and L.M. Khandobina. The method of the International Commission on Illumination (ICI) was applied for quantitative characteristic of color. Results of research into qualitative and quantitative composition of pigment complex of berries of gooseberry and rhubarb stalks revealed that the main components are the chlorophylls whose overall content for different varieties of rhubarb is (3.7…4.5)∙10-3 %, for berries of gooseberry is (3.5…4.7)∙10-3 %. The color characteristics of the examined samples of gooseberry and rhubarb are correlated with the quantitative content of pigments in the raw materials and make it possible to determine the dominant tone (λd, nm) − green, color purity − green with shades of blue, brightness – green, light green, dark green, which coincide with the visual estimation of color. We show expediency of the application of the ICI XYZ method to characterize the color, which considerably facilitates the estimation of color when assessing the quality of food products.

METHODS OF WATER PURIFICATION AT THE STAGE OF WATER TREATMENT FOR FEEDING BOILERS AND THEIR OWN TECHNOLOGICAL NEEDS AT THE PLANT CHPP

2021 ◽  
Vol 3 (1) ◽  
pp. 099-103
Author(s):  
M. V. Vasina ◽  
◽  
A. S. GOLYSH ◽  
K. V. TROFIMENKO ◽  
◽  
...  
Keyword(s):  
Water Treatment ◽  
Water Purification ◽  
Quantitative Composition ◽  
Source Water ◽  
Initial Water ◽  
Qualitative And Quantitative ◽  
Pre Treatment ◽  
The Cost ◽  
Selection Of

This work consists of the characteristics of production, assessment of the qualitative and quantitative composition of water, consideration of the process of water purification in the chemical shop, comparison and selection of coagulants and flocculants, and demonstration of the most affordable technology used at the CHPP which increases the efficiency of source water purification. The problem of pretreatment of the source water has always been relevant. The quality of the water used depends on the operation of boilers and turbines at the CHPP. The paper presents the average annual indicators of the quality of the source water, pre-treatment methods, and considers which reagents that do not require the cost of reconstruction of clarifiers can improve their performance. The initial water after the application of the test samples of coagulants and flocculants was studied. Conclusions are drawn about the work of clarifiers after the use of the proposed reagents.

scholarly journals Marbled beef quality grades under various ageing conditions

2018 ◽  
Vol 6 (2) ◽  
pp. 429-437 ◽  
Author(s):  
Ilya Kozyrev ◽  
Ilya Kozyrev ◽  
Tatyana Mittelshtein ◽  
Tatyana Mittelshtein ◽  
Viktoriya Pchelkina ◽  
...  
Keyword(s):  
Ph Value ◽  
Meat Consumption ◽  
Quantitative Composition ◽  
Beef Quality ◽  
Organoleptic Properties ◽  
Maturation Period ◽  
Qualitative And Quantitative ◽  
Volatile Aroma ◽  
Ageing Period

The Russian beef market is growing, which means that the problem of meat quality is getting more and more relevant. The gradually improving culture of meat consumption raises the demand for beef maturation, or ageing. The current research is the first of its kind in Russia. It features the quality of Russian marbled beef in the process of its open-air and vacuum-packed maturation. The authors studied the changes in the quality grades of dry-aged and vacuum-packed marbled beef during 4, 16 and 28-day ageing and defined the optimal maturation conditions and terms. The study included pH, colour, microstructure, organoleptic properties, the qualitative and quantitative composition of the volatile aroma-forming compounds, and the area of intramuscular fat. The samples were on-the-bone beef cuts obtained from 18-month-old Aberdeen-Angus castrated bulls that had received 200 days of grain fattening. The pH value remained stable throughout the ageing period in the dry-aged and vacuum-packed samples. Approaching the end of the test period, the change in pH reached 0.12 for the dry-aged samples and 0.21 for the vacuum-packed ones. The surface of the dry-aged samples obtained a dark red to burgundy-red dry crust after 16 and 28 days of ageing. The colour was significantly different from the colour of the samples after 4 days of ageing. The colour of the vacuum-packed samples remained unchanged throughout the maturation period. However, the microstructure of the packed beef showed a deeper and more widespread decomposition of muscle tissue on days 16 and 28. The changes in the dry-aged samples were less obvious. All in all, the process of extended ageing improved the organoleptic properties of the beef.

Analysis of Bachelor’s Theses in Personnel Management: a Methodological Approach

2021 ◽  
pp. 23-26
Author(s):  
N. Glukhenkaya ◽  
A. Aristova
Keyword(s):  
Control Systems ◽  
Personnel Management ◽  
Methodological Approach ◽  
Training And Development ◽  
Case Method ◽  
Qualitative And Quantitative ◽  
Scientific Approach ◽  
Main Components ◽  
Quality Of Research

The authors have published a number of scientific articles devoted to the quality of research of personnel management systems (HRMS) in bachelor's theses. In this article, the authors used the methodological scientific approach in the study of final qualification works (WQP) of bachelor students of the Department of Personnel Management and Psychology of the Ural Federal University (UrFU). The methodological scientific approach is based on a quantitative analysis of the application of the following components of the research methodology: theoretical sources, scientific approaches, principles and methods. In the presented work, the purpose of the study is highlighted, which consists in the qualitative and quantitative application of the main components of the methodology for the study of EMS. In the work, the authors applied research methods: the case-method of bachelor's theses, the classification method in the form of tables. One of the tables presents the concept of "research" by leading experts in the study of control systems and one of the authors of this article. The following table summarizes the results of the study. The study also revealed that most often graduates choose the direction of "staff labor motivation" and "personnel training and development" in the organization for research and improvement of the EMS. According to the results of the study of the FQP of diploma students, there are conclusions, on the basis of which the authors of the article have developed recommendations for students and teachers to improve the writing of thesis on personnel management for bachelors.

scholarly journals THE USE OF CATALYTIC NEUTRALIZATION FOR THE PURIFICATION OF EXHAUST GASES FROM MARINE POWER PLANTS IN AN AGGRESSIVE ENVIRONMENT

2020 ◽  
pp. 157-166
Author(s):  
Nina N. Gorlova
Keyword(s):  
Power Plants ◽  
Material Selection ◽  
Point Of View ◽  
Quantitative Composition ◽  
Qualitative And Quantitative ◽  
Aggressive Environment ◽  
Catalytic Material ◽  
The Cost ◽  
Selection Of

    Among the methods used, the most effective, from the point of view of the quality of cleaning from the main harmful substances, is catalytic neutralization. The effectiveness of using this method is largely determined by the properties and characteristics of the used catalytic material. Selection of the appropriate composition determines the provision of physical, physico-mechanical and corrosive properties of the used catalytic materials. In this regard, the possibilities of using steel oxide and molding clay as basic components in the charge of the material were studied. In order to reduce the cost of the treatment system, the possibility of replacing valuable expensive components with ore mills of the appropriate composition was considered.As a result of the studies, the optimal qualitative and quantitative composition of the charge of the catalytic material was determined.

scholarly journals Effect of therapeutic and prophylactic complex DLK (Dironet, Lactobifadol, Forage Keratin) on the intestinal microbiocenosis of the Blue Frost fox at toxascariosis

2021 ◽  
Vol 15 (4) ◽  
pp. 91-99
Author(s):  
A. P. Konovalov ◽  
I. I. Tsepilova ◽  
F. I. Vasilevich ◽  
S. Y. Pigina
Keyword(s):  
Intestinal Microflora ◽  
Quantitative Composition ◽  
Pathogenic Microorganisms ◽  
Experimental Animals ◽  
Qualitative And Quantitative ◽  
Breeding Herd ◽  
Lactic Bacteria ◽  
Toxascaris Leonina ◽  
Intestinal Microbiocenosis

The purpose of the research is determining the effect of the therapeutic and prophylactic complex of Dironet, Lactobifadol and fodder Keratin (DLK) on the qualitative and quantitative composition of the intestinal microflora affected by toxascariosis in the Blue Frost fox.Materials and methods. The research was carried out on the Fur Breeding Farm “Vyatka”, Slobodskoy District, the Kirov Region. The study objects were 24 female Blue Frost foxes culled from the breeding herd. To determine the quality of the skins obtained from the experimental animals, we sorted flint-dried skins.Results and discussion. After the introduction of the therapeutic and preventive complex DLK into the diet of sick animals, the positive dynamics was observed in the quantitative and qualitative composition of intestinal microorganisms. In animals of the experimental groups that were administered DLK, the number of bifidus bacteria, lactic bacteria and fecal enterococci increased; there was a significant decrease or complete absence of pathogenic and conditionally pathogenic microorganisms, fusobacteria, streptococci, clostridia, typical lactose-negative and hemolytic Escherichia, aureus and saprophytic staphylococcus, common Proteus and fungi of the Candida genus. In animals infected by Toxascaris leonina that did not receive the complex therapy, a decrease in lactic acid bacteria and an increase in the content of pathogenic and commensal microorganisms were noted. Under the output of the fur production, the infected animals showed the lowest percentage of skins in terms of quality of 7.16%, which was 0.38% less in comparison with healthy foxes, and 0.51% less in comparison with treated Blue Frost foxes.

Comparative Pharmacognostic, Physicochemical and Phytochemical Studies of Different Samples of Plumbago zeylanica L. Roots

2017 ◽  
Vol 9 (06) ◽  
Author(s):  
Neha Jain ◽  
Mohan Lal Kori
Keyword(s):  
Phytochemical Analysis ◽  
Local Market ◽  
Herbal Drugs ◽  
Disease Treatment ◽  
Organoleptic Evaluation ◽  
Plumbago Zeylanica ◽  
Qualitative And Quantitative ◽  
Crude Drugs ◽  
Phytochemical Studies

The objective of the present study is to evaluate the quality of the marketed and self collected samples of Plumbago zeylanica L. roots on the standardization parameters. This study is planned mainly to confirm changes with quality of drug. Now a day’s more demand of herbal drugs for disease treatment, lack of knowledge of proper methodology and availability are promoting the practices of adulteration and substitution. Thus, the standardization of the plant crude drugs is necessary to maintain their therapeutic efficacy. Comparative studies were carried out to evaluate the standards of P. zeylanica L. with emphasis on organoleptic evaluation, physicochemical and phytochemical analysis. Samples were procured from local market and self collected to determine the qualitative and quantitative variations. The result indicates that self collected sample showed significant results with comparison to marketed sample.

Comparative analysis of essential oil obtained from fresh and dried leaves of medicinal sage

2020 ◽  
pp. 39-53
Author(s):  
Tatyana Shcheglova
Keyword(s):  
Comparative Analysis ◽  
Essential Oil ◽  
Raw Materials ◽  
Quantitative Difference ◽  
Botanical Garden ◽  
Component Composition ◽  
Gas Chromatography Mass Spectrometry ◽  
Qualitative And Quantitative ◽  
Salvia Officinalis L ◽  
Medical University

The article presents results of the study of a comparative analysis of essential oil obtained from fresh and dried leaves of medicinal sage (Salvia officinalis L.), growing in the Botanical Garden of the First Moscow State Medical University named after Sechenov. The studies were carried out using gas chromatography– mass spectrometry. Qualitative and quantitative difference in the component composition of the essential oil obtained from fresh and dried raw materials was determined as a result of the study.

Methodical approach to the assessment of the educational migration environment of the population of the Carpathian region

2019 ◽  
pp. 37-48
Author(s):  
Lyubov Semiv
Keyword(s):  
Institutional Conditions ◽  
Carpathian Region ◽  
Research Activities ◽  
Methodical Approach ◽  
Synthetic Indicator ◽  
Industry Collaboration ◽  
Migration Potential ◽  
Educational Migration ◽  
Main Components

The role and importance of the educational migration environment in activating migration movements of the population is described. The main components of the educational migration environment of the population are identified, and their features are outlined. Indicators have been proposed and the conditions for the formation of the educational migration environment of the population have been determined. It is proved that «freedom of knowledge movement» motivates students, teachers and researchers to combine educational and research activities with future employment abroad. The processes of educational migration in the form of cross-border education and academic mobility are presented. The concept of educational migration environment is defined and five main components of its formation are described: quantitative measurement of educational migration potential; quality of the academic environment; motivational conditions; opportunities for universities and industry collaboration in research; institutional conditions in the educational sphere. The list of indicators offered by the Ukrainian statistics is provided for quantitative representation of each component of the educational migration. Based on the method of multidimensional (cluster) analysis, the regional index of formation of educational migration environment is calculated. Using this method allows to move from the assessment of educational migration environment on 28 indicators to the construction of one synthetic indicator. Application of methodical approach allows to see the place of the region by the important parameters of development of the environment of educational migration of the population, to evaluate the attractiveness, opportunities and threats of formation of this environment in the regional dimension. It is proved that the «most favorable» environment in the Carpathian region has the Lviv region (4th place in Ukraine). Other regions of the Ukrainian Carpathians occupy in the ranking the lower places: respectively Ivano-Frankivsk (15th place), Chernivtsi (21st place), Transcarpathian region (24th place).

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