Results 181 to 190 of about 17,190 (226)
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2023
The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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Microstructural evolution of a heat-treated H23 tool steel
International Journal of Minerals, Metallurgy, and Materials, 2015The microstructure and the stability of carbides after heat treatments in an H23 tool steel were investigated. The heat treatments consisted of austenization at two different austenizing temperatures (1100°C and 1250°C), followed by water quenching and double-aging at 650°C, 750°C, and 800°C with air cooling between the first and second aging ...
Meilinda Nurbanasari +2 more
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The Breakdown of Carbide Network in a H23 Tool Steel by Hot Axisymmetric Compression
Advanced Materials Research, 2014The effects of hot axisymmetric compression to break down the primary carbide network of the H23 tool steels were studied. This current study only focused on one strain rate of 0.01 s-1. The samples were deformed at 3 different temperatures (1000, 1050 and 1100 °C) with solutioning temperatures 1100 and 1250 °C, respectively.
Meilinda Nurbanasari +2 more
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Alloy Digest, 1970
Abstract THERMOLD-H23 is a chromium-tungsten hot work tool and die steel characterized by high strength at elevated temperatures and good resistance to heat checking. It is recommend for extrusion dies and die casting dies. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile ...
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Abstract THERMOLD-H23 is a chromium-tungsten hot work tool and die steel characterized by high strength at elevated temperatures and good resistance to heat checking. It is recommend for extrusion dies and die casting dies. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile ...
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Grain yield response of Zea mays (hybrid AE 703) to Azotobacter chroococcum H23
Biology and Fertility of Soils, 1988Field experiments were conducted during 1985 and 1986 to examine the effect of Azotobacter chroococcum on the grain yield of maize. Application of 40 kg N ha−1 plus A. chroococcum caused a significant increase in maize yield. Azotobacter inoculation was more efficient at lower doses (40 kg N ha−1) than at high doses (80 kg N ha−1) of urea.
M. V. Martinez-Toledo +4 more
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British Journal of Dermatology
Abstract As modern fad diets and chronic illnesses have led to a re-emergence in the presentation of scurvy to dermatology services, we aimed to review the original cohort of patients that gave this condition notoriety – sailors. Scurvy is a disease process secondary to vitamin C deficiency.
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Abstract As modern fad diets and chronic illnesses have led to a re-emergence in the presentation of scurvy to dermatology services, we aimed to review the original cohort of patients that gave this condition notoriety – sailors. Scurvy is a disease process secondary to vitamin C deficiency.
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H23 Addressing carer burden and patient care: prototyping a solution with mobile and web technology
Clinical care and clinical services, 2018Background Huntington’s disease (HD) family carers face a unique and overwhelmingly high care burden. They commonly suffer physical and mental exhaustion, frustration, and financial difficulties, which results in a heavy toll on family relationships and cohesiveness.
Nicolas Lyon +3 more
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Journal of Applied Bacteriology, 1995
M.V. MARTINEZ‐TOLEDO, J. GONZALEZ‐LOPEZ, B. RODELAS, C. POZO AND V. SALMERON. 1995. Azotobacter chroococcum H23 is able to produce large amounts of poly‐β‐hydroxybutyrate (PHB) during growth in chemically‐defined medium (N‐free or with NH + 4
M.V. Martinez‐Toledo +4 more
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M.V. MARTINEZ‐TOLEDO, J. GONZALEZ‐LOPEZ, B. RODELAS, C. POZO AND V. SALMERON. 1995. Azotobacter chroococcum H23 is able to produce large amounts of poly‐β‐hydroxybutyrate (PHB) during growth in chemically‐defined medium (N‐free or with NH + 4
M.V. Martinez‐Toledo +4 more
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International Journal of Mass Spectrometry and Ion Processes, 1995
Abstract The dynamics of clustering and fragmentation reactions H i + + 2H 2 ⇌ H i +2 + + H 2 , for odd i , was studied at a nominal temperature of 10 K in a 22-pole radio-frequency ion trap in normal hydrogen and para-enriched hydrogen. Ternary association rate coefficients, k 3 , and binary fragmentation rate coefficients, k f , were ...
W. Paul +3 more
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Abstract The dynamics of clustering and fragmentation reactions H i + + 2H 2 ⇌ H i +2 + + H 2 , for odd i , was studied at a nominal temperature of 10 K in a 22-pole radio-frequency ion trap in normal hydrogen and para-enriched hydrogen. Ternary association rate coefficients, k 3 , and binary fragmentation rate coefficients, k f , were ...
W. Paul +3 more
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1991
The isolation and characterization of the complementary DNAs (cDNAs) and gene which code for an epithelial tumor antigen (H23-ETA), aberrantly expressed in human breast tumor tissue, are described here. A diversity of H23-ETA protein forms, is generated by a series of alternative splicing events that occur in regions located upstream and downstream to ...
D. H. Wreschner +15 more
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The isolation and characterization of the complementary DNAs (cDNAs) and gene which code for an epithelial tumor antigen (H23-ETA), aberrantly expressed in human breast tumor tissue, are described here. A diversity of H23-ETA protein forms, is generated by a series of alternative splicing events that occur in regions located upstream and downstream to ...
D. H. Wreschner +15 more
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