The present paper studies stress, temperature and heat dependence of creep rupture life 9Cr-1.8W-0.5Mo-VNb (Gr. 92) steel with data 4 heats reported in National Institute for Materials Science Creep Data Sheet 48B. In Gr. 92 there are four regions, H, M, L G, showing different stress life. increases increasing hardness after tempering Regions H M (high medium stress), prior austenite grain size...

Let (G) denote the minimum real root of the -polynomial of the complement of a graph G and (G) the minimum degree of G. In this paper, we give a characterization of all connected graphs G with (G)¿−4. Using these results, we establish a su5cient and necessary condition for a graph G with p vertices and (G)¿p− 3, to be chromatically unique. Many previously known results are generalized. As a byp...

The screened QED corrections to the g factor of Li-like ions are evaluated utilizing an effective potential approach. The evaluation is performed within the range of nuclear charge numbers Z = 32 – 92. The results obtained serve for improving the theoretical predictions for the g factor of heavy Li-like ions. PACS numbers: 12.20.Ds, 31.30.Jv, 31.30.Gs

BACKGROUND The results of epidemiologic studies have consistently shown associations between dietary intake or plasma carotenoid status and incidence of cancers and cardiovascular and eye diseases. OBJECTIVE The aim was to assess whether vegetable-borne carotenoids (lycopene, lutein, and beta-carotene) compete for intestinal absorption and whether this affects the plasma status of carotenoids...

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