Zobrazeno 1 - 3
of 3
pro vyhledávání: '"L. V. Akimova"'
Publikováno v:
Problems of Social Hygiene Public Health and History of Medicine. 29
According to the results of a sociological survey of 10,237 parents of schoolchildren during the period of emergency transfer of students to distance learning in the initial period of the spread of coronavirus infection, a low provision of children w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c26a8552d15c9a225c885d172344cbd7
https://doi.org/10.32687/0869-866x-2021-29-s1-588-592
https://doi.org/10.32687/0869-866x-2021-29-s1-588-592
Publikováno v:
Soviet Powder Metallurgy and Metal Ceramics. 19:617-620
An analysis of the accuracy possible in the experimental determination of the apparent densities and open, total, and closed porosities of spray-deposited coatings has demonstrated that the hydrostatic weighing method permits reliable determination o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bf16995e57f8d48a8b1a78a74fb5ac9
https://doi.org/10.1007/bf00790552
https://doi.org/10.1007/bf00790552
Publikováno v:
Soviet Powder Metallurgy and Metal Ceramics. 24:483-485
The masses of the basis m,, basis with the coating ma, and suspension thread ms are determined by ordinary weighing in air. The distilled water used as the impregnating liquid is first degassed by boiling it for 2 h. The specimen with the thread atta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cdb801ac1a7bae28b861bf6bba37ce4c
https://doi.org/10.1007/bf00802515
https://doi.org/10.1007/bf00802515