Zobrazeno 1 - 10
of 65
pro vyhledávání: '"шунгит"'
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 0, Iss 6, Pp 19-24 (2019)
A method for calculation and analysis of the spectral brightness of composite materials consisting of components combined in various proportions with known optical properties is described.
Externí odkaz:
https://doaj.org/article/f48ade373f82411e88ab0dc880cc50f8
MULTILAYER ELECTROMAGNETIC RADIATION SHIELDS BASED ON powdered carbon materialS and expanded perlite
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 0, Iss 3, Pp 27-32 (2019)
The technology of multilayer electromagnetic radiation shields production with use of composite materials on the basis of expanded perlite sand and powdered carbon materials of various types is proposed. The electromagnetic radiation attenuation and
Externí odkaz:
https://doaj.org/article/0a9ba85666b9483496972e478e151b92
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 0, Iss 8, Pp 31-35 (2019)
The research results of structure, chemical composition, reflection and transmission coefficients of powder shungite after heat treatment at 900 °С for 2 h are presented. According X-ray diffraction study, orthoclase was formed, modifications of ca
Externí odkaz:
https://doaj.org/article/738e6ae7eb2a402c97afa78df0bb53c9
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 0, Iss 1, Pp 91-93 (2019)
Frequency dependencies of transmission and reflection coefficients of pyramid shields with addition of bischofite and calcium chloride in the frequency range of 0,5…18 GHz are presented.
Externí odkaz:
https://doaj.org/article/9409b04937a84cf49bdfffa6838f2476
Autor:
Наталия Сергеевна Бискэ, Natalia Biske
Publikováno v:
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, Vol 0, Iss 02, Pp 96-110 (2017)
The volcanosedimentary Zaonezhskaya Formation of the Ludicovian Suprahorizon (approximately 2.0 Ga) is well-known for grate hosting accumulation and a high content of carbonaceous matter. The rocks had been intruded by numerous mafic sills and later
Externí odkaz:
https://doaj.org/article/dc8b61378650495c96bdc6e6de3f5a13
Publikováno v:
Труды БГТУ: Серия 2. Химические технологии, биотехнологии, геоэкология, Iss 2, Pp 164-169 (2017)
Целью данной статьи явилось исследование закономерностей сорбции паров изопропанола на природном и кислотно-активированном шунгите, а
Externí odkaz:
https://doaj.org/article/eb261a9dd5024a9d92387645fcc26bad
Publikováno v:
Obrazovanie i Nauka, Vol 1, Iss 8, Pp 51-65 (2016)
The aim of the investigation is to show the possibility of updating of the training program of the discipline «Chemistry» intended for training of engineers of chemical specialties of higher educational institutions on the basis of results of the l
Externí odkaz:
https://doaj.org/article/c54460b53f064b08b61e8a0c92303f7e
The paper presents the results of experimental studies of changes in the complex permittivity of natural graphene-containing shungites with different carbon content. A technique for determining the real and imaginary parts of the permittivity for con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32e7a9777f713163f311f2971a1716a4
Publikováno v:
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, Vol 0, Iss 2, Pp 89-104 (2015)
The authors suggest considering shungite carbon (shungite) as a natural carbon allotrope with a multi-level fractal structure produced by consecutive aggregation of ~1 nm thick reduced graphene oxide nanosheets. Turbostratic stacks of ~1.5 nm thick a
Externí odkaz:
https://doaj.org/article/5d9875b1c99d45bc8693d7b0f14762a3
Publikováno v:
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, Vol 0, Iss 11 (2018)
Shungite rocks of the Onega Paleoproterozoic structure are volcanogenic-sedimentary Precambrian carbon-bearing formations that vary in genesis, mineral composition, structureand carbon (shungite) content. Shungite rocks have industrially useful prope
Externí odkaz:
https://doaj.org/article/6c67fcf3b71e4acab52498c613359728