Results 21 to 30 of about 1,779 (117)

Study on Mechanical Behavior of Jurassic Frozen Sandstone in Western China Based on NMR Porosity

Journal of Chemistry, Volume 2020, Issue 1, 2020., 2020
Study of frozen rock mechanical properties is necessary for safe application of the artificial ground freezing method in excavation of Chinese western water‐rich soft rock layers. Triaxial compression tests and NMR test for samples from the western Jurassic sandstone were performed to investigate rock mechanical properties affected by low temperature ...
Maoyan Ma, Yishun Huang, Guangyong Cao, Jian Lin, Shiliang Xu, Shaohui Wang   +5 more
wiley   +1 more source

Processing of Silicon Carbide by Laser Micro Sintering [PDF]

, 2006
Silicon carbide – a solid with covalent bonds - is conventionally synthesized via the Acheson process. Usually solid bodies of silicon carbide with definite shapes are generated from the grained material via hot isostatic pressing or liquid phase ...
Ebert, R., Exner, H., Hartwig, L., Regenfuss, P., Streek, A., Ullmann, F.   +5 more
core   +1 more source

Sequential and counter-selectable cassettes for fission yeast [PDF]

, 2016
BACKGROUND: Fission yeast is one of the most commonly used model organisms for studying genetics. For selection of desirable genotypes, antibiotic resistance cassettes are widely integrated into the genome near genes of interest.
Amelina, H, Armstrong, CA, Collopy, LC, Moiseeva, V, Pearson, SR, Tomita, K   +5 more
core   +3 more sources

No Fossil Disk in the T Tauri Multiple System V773 Tau [PDF]

, 2003
We present new multi-epoch near-infrared and optical high-angular images of the V773 Tau pre-main sequence triple system, a weak-line T Tauri (WTTS) system in which the presence of an evolved, ``fossil'' protoplanetary disk has been inferred on the basis
A. J. Weinberger, A. M. Ghez, Baraffe I., C. McCabe, Chelli A., Duquennoy A., Dutrey A., Frink S., G. Duchene, Gurtler J., Leinert C., Lestrade J.-F., Prusti T., Siess L., Strom S. E.   +14 more
core   +2 more sources

Velocity Dispersions of CNOC Clusters and the Evolution of the Cluster Abundance

, 1999
We present the results of the analysis of the internal velocity dispersions, \sigma_v, for the CNOC sample of distant galaxy clusters, based on an interlopers removal algorithm, which is different from that originally applied by Carlberg et al.
Adami C., Danese L., den Hartog R., E. Ellingson, Ebeling H., Edge A. C., Efstathiou G., Eke V. R., H. K. C. Yee, Lacey C. G., Lacey C. G., M. Girardi, Mazure A., Oukbir J., Oukbir J., Peacock J. A., Pisani A., R. G. Carlberg, S. Borgani, Sadat R., White S. D. M.   +20 more
core   +2 more sources

The ROSAT-ESO Flux-Limited X-Ray (REFLEX) Galaxy Cluster Survey III: The Power Spectrum

, 2000
We present a measure of the power spectrum on scales from 15 to 800 Mpc/h using the ROSAT-ESO Flux-Limited X-Ray(REFLEX) galaxy cluster catalogue. The REFLEX survey provides a sample of the 452 X-ray brightest southern clusters of galaxies with the ...
Abell, Avni, Bardeen, Bardelli, Bennett, Bond, Borgani, Burbles, Böhringer, Böhringer, Carroll, Collins, Collins, Dalton, Danese, Davis, de Grandi, Dekel, Dickey, Einasto, Einasto, Eke, Feldman, Guzzo, Guzzo, Hamilton, Heydon-Dumbleton, Jing, Kaiser, Kaiser, Kaiser, Katgert, Kitayama, Lahav, Liddle, Liddle, Lin, Lucey, Lumsden, Magira, Markevitch, Matarrese, Mo, Mo, Nichol, Peacock, Peacock, Peacock, Peacock, Postman, Reiprich, Retzlaff, Ripley, Scaramella, Schmidt, Schuecker, Schuecker, Schwope, Seljak, Sheth, Stark, Sugiyama, Sutherland, Tadros, Trümper, Vettolani, Viana, Vogeley, Voges, Zabludoff, Zucca   +70 more
core   +1 more source

Black Carbon and Inorganic Aerosols in Arctic Snowpack

Journal of Geophysical Research: Atmospheres, Volume 124, Issue 23, Page 13325-13356, 16 December 2019., 2019
Abstract Black carbon (BC) deposited on snow lowers its albedo, potentially contributing to warming in the Arctic. Atmospheric distributions of BC and inorganic aerosols, which contribute directly and indirectly to radiative forcing, are also greatly influenced by depositions. To quantify these effects, accurate measurement of the spatial distributions
Tatsuhiro Mori, Kumiko Goto‐Azuma, Yutaka Kondo, Yoshimi Ogawa‐Tsukagawa, Kazuhiko Miura, Motohiro Hirabayashi, Naga Oshima, Makoto Koike, Kaarle Kupiainen, Nobuhiro Moteki, Sho Ohata, P.R. Sinha, Konosuke Sugiura, Teruo Aoki, Martin Schneebeli, Konrad Steffen, Atsushi Sato, Akane Tsushima, Vladimir Makarov, Satoshi Omiya, Atsuko Sugimoto, Shinya Takano, Naoko Nagatsuka   +22 more
wiley   +1 more source

Sustained Groundwater Loss in California's Central Valley Exacerbated by Intense Drought Periods

Water Resources Research, Volume 54, Issue 7, Page 4449-4460, July 2018., 2018
Abstract The accelerated rate of decline in groundwater levels across California's Central Valley results from overdrafting and low rates of natural recharge and is exacerbated by droughts. The lack of observations with an adequate spatiotemporal resolution to constrain the evolution of groundwater resources poses severe challenges to water management ...
Chandrakanta Ojha, Manoochehr Shirzaei, Susanna Werth, Donald F. Argus, Tom G. Farr   +4 more
wiley   +1 more source

Coating and Characterization of Mock and Explosive Materials

Advances in Materials Science and Engineering, Volume 2012, Issue 1, 2012., 2012
This project develops a method of manufacturing plastic‐bonded explosives by using use precision control of agglomeration and coating of energetic powders. The energetic material coating process entails suspending either wet or dry energetic powders in a stream of inert gas and contacting the energetic powder with atomized droplets of a lacquer ...
Emily M. Hunt, Matt Jackson, J. Paulo Davim   +2 more
wiley   +1 more source

Atomistic Molecular Dynamics Simulations of Mitochondrial DNA Polymerase gamma : Novel Mechanisms of Function and Pathogenesis [PDF]

, 2017
DNA polymerase gamma (Pol gamma) is a key component of the mitochondrial DNA replisome and an important cause of neurological diseases. Despite the availability of its crystal structures, the molecular mechanism of DNA replication, the switch between ...
Euro, Liliya, Haapanen, Outi, Rog, Tomasz, Sharma, Vivek, Suomalainen, Anu, Vattulainen, Ilpo   +5 more
core   +4 more sources