Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Karel Stránský"'
Publikováno v:
Manufacturing Technology. 16:1106-1110
The article deals with the causes of degradation of weld joints, reducing the structural stability of joints in determining of the carbon coefficient, depending on the bandwidth, due to thermally activated happening.
Publikováno v:
Manufacturing Technology. 15:1028-1032
Publikováno v:
Key Engineering Materials. 647:205-209
The article deals with analysis of defects indicated in large forgings in the course of ultrasonic testing. The aim of the metallographic analysis of the defects was to establish whether and to what extent casting or filling powders took part in thei
Autor:
Karel Stránský, Hana Francová, Jana Dobrovská, Frantisek Kavicka, Bedřich Smetana, V. Dobrovská
Publikováno v:
Materials Science Forum. 782:67-72
The paper deals with investigation into segregation behavior of selected elements in longitudinal cut of continuous steel slab, in the breakout area. The breakout occurred after a flying change of tundish in order to begin casting of another steel gr
Publikováno v:
Key Engineering Materials. :197-200
The quality of the working rollers from ductile-cast-iron used for rolling rails is determined by the chemical and structural composition of the material of the rollers and the production technology. The requirements of the quality cannot be ensured
Autor:
Bohumil Sekanina, Milos Masarik, Karel Stránský, Josef Stetina, Jana Dobrovská, Frantisek Kavicka
Publikováno v:
Advanced Materials Research. :411-417
This paper deals with the causes of a transversal crack in a steel slab with an l300×l45 mm cross-section by means of results from two models. Samples were taken from and around the crack in order to analyze the concentration (chemical heterogeneity
Autor:
Marie Zarevúcka, Edita Kofroňová, Zdeněk Wimmer, Klára Urbanová, Irena Valterová, Karel Stránský
Publikováno v:
Lipids. 46:781-788
Human cerumen was separated by column chromatography into the following groups of compounds: hydrocarbons, squalene, wax esters and cholesterol esters, triacylglycerols, free fatty acids, free fatty alcohols, monoacylglycerols, free cholesterol, free
Autor:
Karel Stránský, Milos Masarik, Bohumil Sekanina, Tomas Mauder, Frantisek Kavicka, Josef Stetina, Jana Dobrovská
Publikováno v:
Key Engineering Materials. 465:467-470
In the secondary-cooling zone, where the slab is beginning to straighten out the breakout of the steel can occur in points of increased local chemical and temperature heterogeneity of the steel, from increased tension as a result of the bending of th
Autor:
Josef Cvačka, Oldřich Hovorka, Jiří Kindl, Edita Kofroňová, Irena Valterová, Pavel Jiroš, Karel Stránský, Soňa Vašíčková
Publikováno v:
Lipids. 43:441-450
Unusual fatty acids with 24, 26, and 28 carbon atoms were found in triacylglycerols (TAGs) isolated from fat body tissue of bumblebee Bombus pratorum. The most abundant one was (Z,Z)-9,19-hexacosadienoic acid. Its structure was determined by mass spe
Publikováno v:
Solid State Phenomena. 138:193-200
The paper presents original methodology for assessment of heterogeneity of welded joint by measurement of concentration profiles of substitution elements in three straight lines in a plane perpendicular to the weld interface. The weld joint is formed