Studying the photocatalytic oxidation of hydroxybenzene in aquatic medium on the photocatalizers SnO2, ZnO, TiO2

Deineka, Dmytro; Kobziev, Oleksandr; Avina, Svitlana; Гринь, Світлана Олександрівна; Deyneka, Viktoriya; Taraduda, Dmytro; Sobina, Vitaliy

doi:10.15587/1729-4061.2018.145198

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…Water resources (surface and underground fresh water) must support the vital activity of humans, plants and animals on the planet. However, due to the negative technogenic influence (Ziarati et al, 2021;Khan et al, 2019a;Khan et al, 2019b;Deineka et al, 2018), as well as due to climatic factors (Dang et al, 2018;Liu et al, 2017), in some countries there are problems with the provision of water supply, safe for consumption.…”

Section: Introductionmentioning

confidence: 99%

Cryptosporidium and Giardia lamblia Epidemiology in Middle Eastern Countries: study of the proliferation problem in the aquatic environment

Khan

Morabet²,

Khan

et al. 2021

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The aim is to present a summarized study of the available literature on Cryptosporidium and Giardia lamblia for Middle Eastern countries, in order to identify trends in human cryptosporidiosis and childhood morbidity, and to raise awareness among residents. This is necessary in order to address the gap in preventive measures required to mitigate the overall effect attributed to associated illness and its impact in the already water stressed Middle Eastern countries. To assess seroprevalence of Cryptosporidium and Giardia lamblia in Middle Eastern countries systematic review was carried out based on online articles published from 2010-2018. PubMed, Web of Science, Google Scholar, Science Direct, Scopus, World Bank and WHO report and scientific database were explored. The current study highlights the existing subsequent epidemiology, its seroprevalence distribution, genetic diversity across Middle Eastern countries since 2009. This study therefore will provide the platform for future research work and development in comprehending Cryptosporidium and Giardia lamblia epidemiology in Middle Eastern countries. It was found that lack of awareness, personal hygiene and sanitation facilities, poverty, indiscriminate eating habits are favourable infestation conditions for Cryptosporidium and Giardia lamblia infections. The prevalence for both Cryptosporidium and Giardia lamblia, is higher in developing countries as compared to developed countries. The originality is that it is the only study of its kind in the region, as such studies are still lacking in Middle East countries as compared to other European, Asian, American continents and countries.

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Section: Introductionmentioning

confidence: 99%

Cryptosporidium and Giardia lamblia Epidemiology in Middle Eastern Countries: study of the proliferation problem in the aquatic environment

Khan

Morabet²,

Khan

et al. 2021

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Application of Virtual and Augmented Reality at Nuclear Power Plants

Popov

Iatsyshyn

Sokolov

et al. 2021

Studies in Systems, Decision and Control

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Substantiation of the choice of the cutter material and method of its hardening, working under the action of friction and cyclic loading

Sokolov

Sobyna

Vambol

et al. 2018

Archives of Materials Science and Engineering

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Purpose: The main problem with the use of rescue instruments during emergency response is the low strength of the tool’s cutting edge. The consequence of this is the low efficiency of rescue operations. The purpose of this study is to substantiate experimentally the choice of material for the tool’s cutting edge and the method of surfacing it on the cutter of a hydraulic tool, operating under the simultaneous influence of friction and cyclic loading. Design/methodology/approach: The choice of material was carried out by the way of analytical analysis with subsequent experimental verification. For this purpose, specially made samples of cutters from various grades of alloyed steel were used. With these cutters the steel rod Ø 12 mm made of St3 steel was cut; the number of cutting cycles preceding blunting or destruction of the cutting edge of the tool was counted. Analytical study of the possibility of cutter’s surface hardening by fusing the cutting edge onto it was carried out by the way of analyzing scientific research in the area of improving the technical characteristics of a mechanized hydraulic tool. Findings: It has been experimentally established that Steel 30HGT gives the greatest number of working cycles before blunting, while steels of the manufacturer (Steel 65G and Steel 12M) are destroyed in 180 and 200 working cycles, respectively. Other steels are not destroyed, but can stand fewer number of cutting cycles. To reduce the cost and increase the efficiency of rescue operations, it is proposed to perform surface hardening of the tool cutter by fusing the cutting edge made of Steel 30 HGT steel (analogs: in Germany – 30MnCrTi; in the Czech Republic – 14231). Analytical research has shown that manual arc welding as a method of welding metals is widely tested, reliably reproducible, allows for surfacing in any conditions outside the fabrication facility and is carried out with non-bulky equipment. This will increase the life of the hydraulic rescue tool. Research limitations/implications: The study was conducted for steels that meet the requirements of national standards. Practical implications: Equipping rescue workers with a mechanized tool that has been upgraded by the proposed method improves the efficiency of rescue operations in emergency situations. Originality/value: It is proposed to increase the strength and reliability of a mechanized tool for rescue operations. For the first time, an attempt to substantiate the choice of method for hardening the cutting edge of an instrument by applying reliably reproducible technologies was made.

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Studying the photocatalytic oxidation of hydroxybenzene in aquatic medium on the photocatalizers SnO2, ZnO, TiO2

Cited by 3 publications

References 17 publications

Cryptosporidium and Giardia lamblia Epidemiology in Middle Eastern Countries: study of the proliferation problem in the aquatic environment

Cryptosporidium and Giardia lamblia Epidemiology in Middle Eastern Countries: study of the proliferation problem in the aquatic environment

Application of Virtual and Augmented Reality at Nuclear Power Plants

Substantiation of the choice of the cutter material and method of its hardening, working under the action of friction and cyclic loading

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