Results 121 to 130 of about 381,696 (284)

Influence of natural fibers on physical, mechanical, and fire‐resistant properties of microconcrete

Structural Concrete, EarlyView.
Abstract This study examined the influence of natural fibers on the physical, mechanical, and fire‐resistant properties of microconcrete, in comparison with conventional polypropylene fibers used in cement composites. The fibers were characterized by FTIR and TGA/DSC to assess their composition and thermal stability, and FTIR was also performed after ...
Ivanka Netinger Grubeša, Sandra Juradin, Silvija Mrakovčić, Lidija Radovanović, Milica Vasić, Huseyin Bilgin   +5 more
wiley   +1 more source

Influence of calcination temperature on the durability of metakaolin concrete and limitations of conventional testing methods

Structural Concrete, EarlyView.
Abstract Incorporating metakaolin (MK) as a partial cement replacement offers a viable pathway to reduce carbon emissions while improving concrete performance. However, its durability behavior remains inconsistent, and the applicability of durability test methods to MK‐based concrete is not well established.
Mayen J. Geu, Yan Zhuge, Xing Ma, Thong M. Pham   +3 more
wiley   +1 more source

The formation of interstellar H2 on amorphous silicate grains [PDF]

Monthly Notices of the Royal Astronomical Society, 1986
W. W. Duley, D. A. Williams
openaire   +1 more source

COOPERATIVE MARKETING IN SPECIALTY GRAINS AND IDENTITY PRESERVED GRAIN MARKETS [PDF]

Marketing of specialty and identity preserved grains has become an important strategy in the grain marketing industry and is being driven, in part, by consumer and processor demand and an interest in non-GM products.
Janzen, Edward L., Wilson, William W.
core  

Formation of Molecular Hydrogen on Amorphous Silicate Surfaces [PDF]

, 2007
Experimental results on the formation of molecular hydrogen on amorphous silicate surfaces are presented and analyzed using a rate equation model. The energy barriers for the relevant diffusion and desorption processes are obtained.
Swords, S., Li, Ling, Congiu, E., Vidali, Gianfranco   +3 more
core  

Low-temperature crystallization of silicate dust in circumstellar disks

, 1999
Silicate dust in the interstellar medium is observed to be amorphous(1), yet silicate dust in comets(2,3) and interplanetary dust particles(4) is sometimes partially crystalline.
Tielens, A.G.G.M., Malfait, K., H. van Winckel, I. Yamamura, A. G. G. M. Tielens, R. H. M. Voors, de Koter, A, Tielens, A. G. G. M., de Graauw, T., L. B. F. M. Waters, M. E. van den Ancker, de Jong, T., Voors, R.H.M., K. Malfait, Waelkens, C., Molster, FJ, Th. de Graauw, Yamamura, I., F. J. Molster, de Jong, T, Waters, L.B.F.M., de Graauw, T, T. de Jong, Waters, LBFM, van Winckel, H, van Winckel, H., van den Ancker, M.E., Voors, RHM, Molster, F.J., van den Ancker, ME, Malfait, K, de Koter, A., Waelkens, C, A. de Koter, C. Waelkens, de, Jong T., Waters, L. B. F. M., van, den Ancker M. E., 山村, 一誠, de, Koter A., Yamamura, Issei, Molster, F. J., van, Winckel H., de, Graauw Th., Voors, R. H. M.   +44 more
core   +1 more source

Development and characterization of eco‐friendly fire‐resistant 3D‐printable concrete utilizing recycled nickel slag

Structural Concrete, EarlyView.
Abstract This study investigates the utilization of industrial nickel slag waste to develop eco‐friendly fire‐resistant 3D concrete printing (3DCP). The benefits of waste nickel slag are bifold: it serves as a partial replacement, reducing carbon‐intensive cement and enhances fire resistance.
Akilesh Ramesh, Sayanthan Ramakrishnan, Hudson Walker, Allan C. Manalo, Anthony Ariyanayagam   +4 more
wiley   +1 more source

Toward Silica‐Free Compliance: A Low‐Viscosity Sample Pretreatment Methodology for Crystalline Quartz Quantification in Viscous Pastes

X-Ray Spectrometry, EarlyView.
ABSTRACT Crystalline quartz, the most common crystalline silica polymorph, is widely found in industrial products. It is of high regulatory relevance, because its fine fraction, a form of respirable crystalline silica, is classified as an occupational carcinogen, with product‐content thresholds (e.g., 0.1% (w/w) in the European Union) and stringent ...
Giacomo Siviero, Michelle Buoso, Diego Andreola, Giulia Moro   +3 more
wiley   +1 more source

The Near‐Infrared Interstellar Silicate Bands and Grain Theories

The Astrophysical Journal, 1998
With nonporous spherical grains, the interstellar 9.7 and 18 μm silicate bands are observed to be too strong to be compatible with laboratory silicates if the interstellar medium has an abundance of heavy elements that is substantially less than solar, as indicated by a number of recent observations.
openaire   +1 more source

Annealing of Silicate Dust by Nebular Shocks at 10 AU

, 2001
Silicate dust grains in the interstellar medium are known to be mostly amorphous, yet crystalline silicate grains have been observed in many long-period comets and in protoplanetary disks.
Harker, David E., DeVincenzi, D., Desch, Steven J.   +2 more
core