Results 21 to 30 of about 1,674,995 (197)

Extraction of Rhenium from Lead Sludge of Copper Production

Journal of Engineering, Volume 2023, Issue 1, 2023., 2023
The article presents the results of oxidative leaching of lead sludge from copper production in order to extract rhenium into solution. The optimum regimes for product leaching man‐made product in the presence of sodium peroxocarbonate Na2CO3·1.5H2O2 has been established: Experimental work was carried out under the following conditions: oxidant ...
Nazigul Zhumakynbai, Zhanna B. Shaimerden, Feruza A. Berdikulova, Bagzhan G. Ondiris, Aigerim G. Khamidulla, Nazira M. Seidakhmetova, Hans Kristianto   +6 more
wiley   +1 more source

The outcomes of functioning of the Unified System of Individual Dose Control of the Russian Federation citizens based on the 2019 data

Радиационная гигиена, 2020
The article presents results of the analysis of information on the doses of technogenic exposure of personnel and the population due to the normal operation of radiation facilities, exposure of the population due to natural sources and technogenically ...
A. N. Barkovsky, Ruslan R. Akhmatdinov, Rustam R. Akhmatdinov, A. M. Biblin, A. A. Bratilova, V. E. Zhuravleva, T. A. Kormanovskaya, S. I. Kuvshinnikov, A. G. Sivenkov, O. E. Tutelyan, A. G. Tsovyanov   +10 more
doaj   +1 more source

The Influence of Vermicompost and Various Concentrations of Lead on the Enzymatic Activity of Sierozem Soils of Kazakhstan

Scientifica, Volume 2023, Issue 1, 2023., 2023
The influence of vermicompost and various concentrations of lead on the activity of hydrolytic (urease and protease) and oxidative‐reducing (catalase and dehydrogenase) enzymes in the sierozem soil of Southern Kazakhstan (Turkestan region) was studied. Background unpolluted soils served as a control.
G. A. Sainova, N. A. Kaliyeva, D. Kh Yuldashbek, A. D. Akbasova, Muhammad Iqhrammullah   +4 more
wiley   +1 more source

Biofabrication of Human Skin with Its Appendages

Advanced Healthcare Materials, Volume 11, Issue 22, November 16, 2022., 2022
The successful bioengineered skin constructs should reflect the in vivo situation for the formation and growth of all skin layers containing blood vessels and appendages. Yet, there are major challenges ahead to regenerate functional skin. The skin organoids and bioeneering concepts hold promise for reconstructing appendage‐bearing skin organ ...
Motaharesadat Hosseini, Karl R. Koehler, Abbas Shafiee   +2 more
wiley   +1 more source

Production of Synthetic Wollastonite Using Gypsum Technogenic Raw Materials [PDF]

, 2020
The paper analyzes the literature in the field of synthetic wollastonite production using gypsum technogenic raw materials. Using the example of the complex processing of boric acid production wastes the possibility of obtaining synthetic wollastonite at
Kozin, A. V., S.B., Yarusova, I.Yu., Buravlev, Buravlev, I. Yu., A.A., Okhlopkova, Zhevtun, I. G., Yarusova, S. B., Gordienko, P. S., P.S, Gordienko, I.G., Zhevtun, Okhlopkova, A. A., A.V. , Kozin   +11 more
core   +1 more source

Using Community Science to Better Understand Lead Exposure Risks

GeoHealth, Volume 6, Issue 2, February 2022., 2022
Abstract Lead (Pb) is a neurotoxicant that particularly harms young children. Urban environments are often plagued with elevated Pb in soils and dusts, posing a health exposure risk from inhalation and ingestion of these contaminated media. Thus, a better understanding of where to prioritize risk screening and intervention is paramount from a public ...
Matthew Dietrich, John T. Shukle, Mark P. S. Krekeler, Leah R. Wood, Gabriel M. Filippelli   +4 more
wiley   +1 more source

Analysis of Heat Release Processes inside Storage Facilities Containing Irradiated Nuclear Graphite

Science and Technology of Nuclear Installations, Volume 2022, Issue 1, 2022., 2022
The article is dedicated to the safety assessment of mixed storage of irradiated graphite and other types of radioactive waste accumulated during the operation of uranium‐graphite reactors. The analysis of heat release processes inside storages containing irradiated nuclear graphite, representing a potential hazard due to the possible heating and ...
Alexander O. Pavliuk, Evgeniy V. Bespala, Sergey G. Kotlyarevskiy, Ivan Yu. Novoselov, Veleriy N. Kotov, Klaudio Bari   +5 more
wiley   +1 more source

Constraints on the origins of iron silicide spherules in ultrahigh‐temperature distal impact ejecta

Meteoritics &Planetary Science, Volume 56, Issue 7, Page 1369-1405, July 2021., 2021
Abstract Terrestrially occurring iron silicide spherules, described in the geological literature for 160 years as cosmogenic and approved as “extraterrestrial” minerals by IMA CNMMN in 1984, so far have escaped any serious examination by meteoriticists.
Sergei Batovrin, Boris Lipovsky, Yury Gulbin, Yury Pushkarev, Yury A. Shukolyukov, Donald Brownlee   +5 more
wiley   +1 more source

Complex Alumina‐Ferrous Coagulant for Effective Wastewater Purification from Hydrogen Sulfide

Advances in Materials Science and Engineering, Volume 2021, Issue 1, 2021., 2021
The article provides an overview of studies on the causes of the formation of hydrogen sulfide in anaerobic conditions of urban sewage systems and methods for neutralizing toxic reagent sulfur‐containing compounds. It is noted that the presence of sulfur compounds and organic components in sewage flow leads to the formation and release of hydrogen ...
Erzhan I. Kuldeyev, Aysha E. Tastanova, Igor V. Bondarenko, Saniya S. Temirova, Ruslan E. Nurlybayev, Bibigul S. Botantayeva, Fardila M. Zaihidee, Gianfranco Carotenuto   +7 more
wiley   +1 more source

A role of technogenic chemical risk factors in the development of cognitive dysfunctions in children in a zone of exposure to the non-ferrous metallurgic enterprises

Hygiene and sanitation, 2022
Introduction. Cognitive disorders in children reduce their social abilities and abilities to learn; therefore, correct diagnostics and prevention of such disorders is a pressing medical and social issue. Materials and methods. The test group was made of two hundred sixty eight 4-7 years children lived and attended preschool children facilities in a ...
Svetlana L. Valina, Olga Yu. Ustinova, Maksim A. Savinkov, Larisa V. Osheeva, Olga A. Kobyakova, Daria A. Eisfeld   +5 more
openaire   +1 more source