Results 101 to 110 of about 40,461 (205)

On the Submillimeter Opacity of Protoplanetary Disks

, 2005
Solid particles with the composition of interstellar dust and power-law size distribution dn/da propto a^{-p} for a 3 lambda and 3 < p < 4 will have submm opacity spectral index beta(lambda) = dln(kappa)/dln(nu) approx (p-3) beta_{ism}, where beta_{ism}
B. T. Draine, Dohnanyi J. W., Henning Th., Jager C., Krugel E., Preibisch Th., Stognienko R., Wiscombe W. J.   +7 more
core   +1 more source

Millimeter-sized grains in the protostellar envelopes: where do they come from?

, 2016
Grain growth during star formation affects the physical and chemical processes in the evolution of star-forming clouds. We investigate the origin of the millimeter (mm)-sized grains recently observed in Class I protostellar envelopes.
Hirashita, Hiroyuki, Li, Zhi-Yun, Wong, Yi Hang Valerie   +2 more
core   +1 more source

On the properties of discs around accreting brown dwarfs

, 2010
We present a grid of models of accreting brown dwarf systems with circumstellar discs. The calculations involve a self-consistent solution of both vertical hydrostatic and radiative equilibrium along with a sophisticated treatment of dust sublimation. We
Allen, Allers, Anders, Asplund, Barrado y Navascués, Bertout, Bessell, Bessell, Bessell, Bessell, Bouvier, Bouvier, Bouy, Bryden, Camenzind, Carpenter, Chabrier, Clarke, Cohen, Cohen, Currie, Dahm, Dullemond, Elias, Ercolano, Fukugita, Gatti, Griffin, Griffin, Gullbring, Gutermuth, Haisch, Harries, Harries, Hartmann, Hawarden, Herbst, Herczeg, Holland, Isella, Jayawardhana, Joergens, Johnson, Kama, Kennedy, Kenyon, Koenigl, Kurosawa, Kurosawa, Lada, Lada, Leggett, Lucy, Luhman, Luhman, Luhman, Martín, Mayne, Mayne, Meyer, Mohanty, Mohanty, Monin, Morrow, Muzerolle, Muzerolle, Najita, Nathan J. Mayne, Natta, Natta, Natta, Neugebauer, Noels, Pascucci, Pinte, Poglitsch, Pollack, Rice, Robitaille, Scholz, Scholz, Shakura, Shu, Siess, Siess, Simons, Skrutskie, Stephens, Tannirkulam, Tim J. Harries, Tokunaga, Tout, Walker, White, Wood, Zapatero Osorio   +95 more
core   +1 more source

A novel on-a-chip system with a 3D-bioinspired gut mucus suitable to investigate bacterial endotoxins dynamics

Materials Today Bio
The possible pathogenic impact of pro-inflammatory molecules produced by the gut microbiota is one of the hypotheses considered at the basis of the biomolecular dialogue governing the microbiota-gut-brain axis. Among these molecules, lipopolysaccharides (
L. Sardelli, M. Campanile, L. Boeri, F. Donnaloja, F. Fanizza, S. Perottoni, P. Petrini, D. Albani, C. Giordano   +8 more
doaj   +1 more source

Monomer-Isomerization Polymerization XXXIV. Active Sites for Isomerization in Monomer-Isomerization Polymerization of 2-Butene with Ziegler-Natta Catalyst [PDF]

, 1991
Kiyoshi Endo, Ryuichi Ueda, Takayuki Otsu   +2 more
openalex   +1 more source

Diamonds in HD 97048

, 2004
We present adaptive optics high angular resolution ($\sim0\farcs$1) spectroscopic observations in the 3 $\mu$m region of the Herbig Ae/Be star HD 97048. For the first time, we spatially resolve the emission in the diamond features at 3.43 and 3.53 $\mu$m
Carbillet, M., Habart, E., Natta, A., Testi, L.   +3 more
core   +5 more sources

Vibrational Properties of Doped P3HT Chains in Solution: Insight into the Doping Mechanism from Infrared IRAV and Raman RaAV Bands

Molecules
Chemical doping is a well-established technique for increasing the electrical conductivity of polyconjugated polymers, and its effectiveness can be assessed through IR spectroscopy, thanks to the rise of the so-called IRAVs (infrared activated vibrations)
Kaiyue Hu, Sara Doti, Luigi Brambilla, Mirella Del Zoppo, Chiara Castiglioni, Giuseppe Zerbi   +5 more
doaj   +1 more source

Copolymerization of Propylene and &alpha;-Olefin by Titanium-Based Ziegler-Natta Catalysts [PDF]

, 1994
Hui Chen, Jianguo Wang, Xuequan Zhang, Deren Pang, Baotong Huang   +4 more
openalex   +1 more source

Silica-Magnesium-Titanium Ziegler-Natta Catalysts. Part I: Structure of the Pre-Catalyst at a Molecular Level

, 2023
Elena Groppo, Jelena Zarupski, Piovano Alessandro, Matteo Signorile, Alessia Amodio, Luca Olivi, Coen Hendriksen, Nic Friederichs   +7 more
openalex   +1 more source

Influence of the Preparation Technique of MgCl2/TiCl4 Ziegler-Natta Catalyst on the Performance in Ethylene and Propylene Polymerization [PDF]

, 2010
Maria de Fátima Vieira Marques, Lidiane A. Almeida, Kamilla Cruz, Instituto de Macromoleculas Professora Eloisa Mano/UFRJ – Caixa Postal 68525, 21941-590 Rio de Janeiro, Kamilla Cruz, Instituto de Macromoleculas Professora Eloisa Mano/UFRJ – Caixa Postal 68525, 21941-590 Rio de Janeiro   +5 more
openalex   +1 more source