Zobrazeno 1 - 10
of 169
pro vyhledávání: '"J. F. Young"'
Publikováno v:
Australian Journal of Earth Sciences. 61:351-362
This paper deals with the scientific assessment of the physical properties of sandstone used in the conservation of Sydney's historic heritage sandstone buildings. The local Hawkesbury Sandstone has been widely used for all manner of constructions si
Autor:
J. F. Young
Publikováno v:
Journal of Applied Chemistry. 17:241-245
The relative humidities maintained over saturated and unsaturated salt solutions and of some salt hydrate mixtures have been collated from the literature over a wide range of temperature. Results are presented for 38 saturated salt solutions, and det
Autor:
Yukie Shimada, J. F. Young
Publikováno v:
Advances in Cement Research. 13:77-81
Changes in crystal structure of ettringite on dehydration in normal atmosphere have been re-examined by means of thermogravimetry, X-ray diffraction, and 27Al nuclear magnetic resonance spectroscopy. Synthetic ettringite crystals were heated at vario
Autor:
J. F. Young, H. Matsuyama
Publikováno v:
Advances in Cement Research. 12:29-33
C-S-H samples were precipitated from aqueous solution containing Ca(NO3)2 and Na2SiO3 with an initial Ca/Si molar ratio of 1·3, when the pH value in the solution was varied by adding HNO3 or NaOH. A pH > 10·9 was required to obtain quasi-crystallin
Autor:
J. C. Chern, J. F. Young, M. Mamillan, T. C. Hansen, R. F. Warner, Heinrich Trost, L Agullo, Mario Alberto Chiorino, Folker H. Wittmann, Kristek, Franz-Josef Ulm, Stuart Reid, Ignacio Carol, Yunping Xi, Jose M. R. Catarino, Michel Auperin, B H Oh, Joong-Koo Kim, Paul Acker, H W Reinhardt, Domingo J. Carreira, P. Schwesinger, Zdenek P. Bazant, Terje Kanstad, C. Huet, F Alou, Josko Ozbolt, Bernard Espion, Tatsuya Tsubaki, Harold S. Muller, John W. Dougill, H Fagerlund, Bretislav Teply
Publikováno v:
Materials and Structures. 31:507-512
Publikováno v:
Journal of animal science. 91(3)
Intrauterine growth restriction (IUGR) occurs naturally in pigs and leads to low birth weight of piglets due to undernutrition caused by placental insufficiency. For 2 main reasons, low birth weight causes economic loss. First, low birth weight pigs
Autor:
P. H. Chapuis, M. J. Killingback, P. F. Anseline, A. McK. Bell, E. L. Bokey, J. R. Cohen, B. T. Collopy, G. C. Ctercteko, I. G. Cunningham, P. R. Douglas, A. A. Eyers, V. W. Fazio, M. Findlay, D. C. Hoffmann, I. T. Jones, M. D. Levitt, D. Z. Lubowski, A. R. McLeish, M. J. McNamara, G. L. Newstead, T. W. O'Connor, J. C. B. Penfold, P. J. Stewart, R. W. Stitz, M. Stuart, J. L. Sweeney, J. F. Young, B. P. Waxman, R. J. Woods, P. G. Yuile
Publikováno v:
Europe PubMed Central
Publikováno v:
Advances in Cement Research. 6:161-164
Slow hydration of γ-C2S in mixtures of β and γ polymorphs was observed between 17 and 40 months of curing, but did not occur in the presence of silica fume. The detection of cross-linked silicate species by nuclear magnetic resonance (Q3) is attri
Autor:
J. F. Young, G. K. Sun
Publikováno v:
Advances in Cement Research. 5:163-169
DSP (densified with small particles) cement pastes, made from white Portland cement and silica fume, were autoclaved at temperatures of up to 240°C. The hydration products were characterized using X-ray powder diffraction, 29Si nuclear magnetic reso
Publikováno v:
ChemInform. 22