Development of express-evaluation method of water biological properties

Глухова, Наталія Вікторівна

doi:10.15587/1729-4061.2014.31546

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…The work [24] shows the possibility of the gas-discharge radiation method for studying the biological properties of water. However, the disadvantage of this approach, which is For a more detailed quantitative assessment of water properties, it is proposed to use an image analysis tool based on obtaining texture features.…”

Section: Resultsmentioning

confidence: 98%

Integrated assessment of the state of sewage mine waters based on gas-discharge radiation method

et al. 2020

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The existing environmental problems resulting from the use and subsequent discharge of water by mining and metallurgical enterprises are analyzed. The relevance of developing methods for an integrated assessment of water properties is presented, which will allow the study of not only physical-chemical, but also the biological parameters of water. Experimental studies of water samples are conducted based on the method of gas-discharge radiation. The existing methods for extracting informative features of gas-discharge radiation images of liquid-phase objects are analyzed. Histograms of gas-discharge radiation images of various types of water were constructed and studied. The expediency of dividing images into separate fragments, characterized by common texture features, is shown. The analysis of texture features is carried out based on the use of the Fourier transform. Using the Fourier transform for the corresponding luminance vectors, the spectra have been obtained of the spatial distribution of the frequencies of brightness changes, which are used as texture features to identify the specific characteristics of the gas-discharge tracks formation. It has been determined that the developed method of water analysis allows assessing its biological properties, which is based on the values of the spatial frequency range. The advantage of the proposed method over the existing ones is the possibility of quantitative assessment in the form of numerical values of the covered range of spatial frequencies. The proposed method of studying the biological properties of water can be used as part of modern environmental monitoring systems.

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Section: Resultsmentioning

confidence: 98%

Integrated assessment of the state of sewage mine waters based on gas-discharge radiation method

et al. 2020

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“…To analyze the photometric parameters of gas discharge emission from water samples, the above-described standard method for constructing histograms for a single image [29] was used, but an additional statistical processing method was developed that provides the construction of an averaged histogram for a sample of images [30,31]. The expediency of developing the second method was due to the need to improve the accuracy and reliability of studying the properties of a liquid based on the gas-discharge radiation method.…”

Section: Methods For Analysis and Parameterization Of Images Of Gas D...mentioning

confidence: 99%

Research of the parameters of EVOdrop filtered water during the gas discharge conditions with electrophotographic registration

Ignatov¹,

Huether²,

Glukhova³

et al. 2023

Preprint

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Drinking water that meets quality requirements is essential for humans. The quality of drinking water is assessed by various indicators and monitored in various ways. Pollution of the hydrosphere leads to the need to use unique water treatment methods since water can absorb various pollutants as a universal solvent. The problem of providing the population with high-quality drinking water is further complicated by the shortage of fresh water. This is due to climate change of technogenic origin and other environmental problems. Environmental monitoring of water quality indicates problems associated with the excess content of several chemical elements in drinking water, which negatively affects its consumer properties. The deterioration of the quality of drinking water due to pollution of the hydrosphere necessitates the development and improvement of water treatment processes, including water filtration. Water that has undergone a water treatment process also requires a study of its parameters. An analysis of publications indicates that a comprehensive study of water quality indicators is difficult. At the present stage, it is necessary to analyze water's physical, chemical, and biological characteristics. From the point of view of the possibility of providing a comprehensive analysis of water quality indicators, the gas-discharge radiation method is promising. Black and white method (Kirlian, 1949, Antonov, Yuskesselieva, 1968, Inyushin et al., 1968, Boyer, Tiller, 1973) or color corona spectral analysis (Ignatov, 2007) is used in medicine, biology, and ecology to study biological and physical objects. Research method (Pesotskaya, Glukhova, Lapitskiy, 2013) refers to active experiments since it is based on registering a corona discharge, which occurs when an object under study is exposed to a high-frequency pulsed electric discharge. The geometric and photometric parameters of the corona gas-discharge radiation depend on the properties of the experimental object of study. Registration of the corona of gas-discharge radiation can be performed by fixing it in grayscale on X-ray film or as a color image on photographic film. The physical effects underlying the method are based on the ionization process, which ensures the formation of a sliding gas discharge formation on the dielectric surface. The discharge occurs due to the formation of ionized gas in the form of a conducting plasma. The dynamics of the formation of a gas discharge in the form of a corona, consisting of separate discharge tracks (streamers), correlates with the electromagnetic properties of a water sample. The geometric shape and surface brightness of gas discharges are determined and recorded on photographic material. The described physical effects make it possible to study the properties of an experimental object.

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Quantitative Land Suitability Mapping for Crop Cultivation

Kokhan¹,

Москаленко²,

Drozdivskyi³

2018

Komunikácie

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Developing the structure of geodatabase and knowledge base to provide quantitative mapping of land suitability for cultivation the main crops has been shown in the research. The general model and catalogs of knowledge base were designed that are structuring and formalizing information for creating thematic and complex maps and geomodels. The real world spatial problems give rise to multi-criteria decision-making based on geographical information systems (GIS). The GIS environment provides both aggregation and spatial analysis of various georeferenced data. In this paper, the two approaches of multi-criteria evaluation (MCE) are represented - overlaying with the AND operation and the lowest score assignment on one criterion. An example of multi-attribute decision analysis is done using criteria for the crop suitability assessment. A comparison of those two approaches has been made, based on results of the land-use suitability mapping for the study crops - winter wheat, sunflower and corn. The results demonstrated that at certain locations, a range of criteria values, according to the AND operations had the lower applicability and less flexibility than according to the second approach, based on the lowest score assignment on one criterion. Designed maps characterize the threshold status of the soil quality to provide yields of studied crops on certain areas. A set of land suitability maps, designed as quantitative models of integration of environmental, soil and climatic conditions, would be very effective to manage the complex decisions under the crop cultivation.

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Development of express-evaluation method of water biological properties

Cited by 4 publications

References 9 publications

Integrated assessment of the state of sewage mine waters based on gas-discharge radiation method

Integrated assessment of the state of sewage mine waters based on gas-discharge radiation method

Research of the parameters of EVOdrop filtered water during the gas discharge conditions with electrophotographic registration

Quantitative Land Suitability Mapping for Crop Cultivation

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