Results 31 to 40 of about 543,793 (292)

Tomography of silicate dust around M-type AGB stars I. Diagnostics based on dynamical models

, 2017
The heavy mass loss observed in evolved asymptotic giant branch stars is usually attributed to a two-step process: atmospheric levitation by pulsation-induced shock waves, followed by radiative acceleration of newly formed dust grains.
Aringer, B., Bladh, S., Höfner, S., Paladini, C.   +3 more
core   +1 more source

Selective enrichment of Ti element and phase transformation of MgAl2O4 in titanium-containing electric furnace molten slag during the alkali fusion process

工程科学学报, 2015
Using potassium hydroxide as a modifier, Ti element was selectively enriched in potassium metatitanate from titanium-containing electric furnace molten slag, and magnesium aluminium spinel and forsterite were successfully converted to aluminates and ...
YANG Yang, LI Yang, GUO Min, ZHANG Mei
doaj   +1 more source

High-Resolution X-ray Spectroscopy of the Interstellar Medium

, 2010
The interstellar medium (ISM) has a multiphase structure characterized by gas, dust and molecules. The gas can be found in different charge states: neutral, low-ionized (warm) and high-ionized (hot). It is possible to probe the multiphase ISM through the
Barrus, C. Pinto, Costantini, Dame, de Vries, de Vries, den Herder, E. Costantini, Esteban, F. Verbunt, Ferrière, Friel, Gummersbach, Heger, Hiraya, in't Zand, J. S. Kaastra, Juett, Juett, Kaastra, Lodders, Lodders, Maciel, McCammon, Morrison, Paerels, Parent, Pedicelli, Rolleston, Schattenburg, Schlegel, Simpson, Strüder, Thompson, Ubertini, van Aken, Verner, Wight, Williams, Wilms, Yao, Yao   +41 more
core   +1 more source

The Large Magellanic Cloud as a laboratory for Hot Bottom Burning in massive Asymptotic Giant Branch stars [PDF]

, 2015
We use Spitzer observations of the rich population of Asymptotic Giant Branch stars in the Large Magellanic Cloud (LMC) to test models describing the internal structure and nucleosynthesis of the most massive of these stars, i.e.
Boyer, M. L., Dell'Agli, F., Di Criscienzo, M., García-Hernández, D. A., Karakas, A. I., Schneider, R., Ventura, P.   +6 more
core   +2 more sources

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Investigation of improving the thermophysical properties and corrosion resistance of RE2SiO5/RE2Si2O7 multiphase silicates by component design with RE doping

Journal of Advanced Ceramics
In this research, a novel method for regulating components in RE2SiO5/RE2Si2O7 multiphase silicates was developed, combining the benefits of a suitable thermal expansion coefficient (CTE) and outstanding corrosion resistance against calcium–magnesium ...
Zeyu Chen, Yiling Huang, Zhaoxuan Zhang, Wei Zheng, Xuemei Song, Yaran Niu, Yi Zeng   +6 more
doaj   +1 more source

Optical properties of cosmic dust analogs: A review

, 2010
Nanometer- and micrometer-sized solid particles play an important role in the evolutionary cycle of stars and interstellar matter. The optical properties of cosmic grains determine the interaction of the radiation field with the solids, thereby ...
Henning, Thomas, Mutschke, Harald
core   +1 more source

Spring and surface water quality of the Cyprus ophiolites [PDF]

, 2002
A survey of surface, spring and borehole waters associated with the ophiolite rocks of Cyprus shows five broad water types (1) Mg-HCO3, (2) Na-SO4-Cl-HCO3, (3) Na-Ca-Cl-SO4-OH-CO3, (4) Na-Cl-SO4 and (5) Ca-SO4.
Neal, C., Shand, P.
core   +2 more sources

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Rice husk ash and zeolite-siliceous rock as sources of amorphous silicon dioxide [PDF]

E3S Web of Conferences
The present article is referred to the study of amorphous analogs of silicon dioxide obtained from raw materials of plant and fossil origin available on the domestic market.
Gotlib Elena, Mishagin Kirill, Gabdulkhayev Kamil, Sokolova Alla   +3 more
doaj   +1 more source