Results 51 to 60 of about 3,198,190 (296)

Determining the forsterite abundance of the dust around Asymptotic Giant Branch stars [PDF]

, 2010
Aims. We present a diagnostic tool to determine the abundance of the crystalline silicate forsterite in AGB stars surrounded by a thick shell of silicate dust.
B. L. de Vries, Decin, Dorschner, F. Kemper, Fluks, Gail, Groenewegen, Henning, Heras, J. A. D. L. Blommaert, Justtanont, Justtanont, Jäger, Jäger, Kemper, Kemper, Kemper, Kemper, Kessler-Silacci, L. B. F. M. Waters, Li, M. Min, Markwick-Kemper, Mathis, Mauron, Meeus, Min, Molster, Molster, Ordal, Riechers, Schutte, Servoin, Sloan, Sloan, Sogawa, Speck, Spoon, Suh, Sylvester, Tielens, Waelkens, Waters, Woitke, Wooden   +44 more
core   +10 more sources

HRR-Based Calibration of an FDS Model for Office Fire Simulations Using Full-Scale Wood Crib Experiments

Applied Sciences
This study deals with the simulation of office fires by combining large-scale experiments with nine wooden cribs and a carefully calibrated computer model. It shows how real fire conditions, reaching up to 800–1000 °C, could be reproduced experimentally.
Iulian-Cristian Ene, Vlad Iordache, Mihai Dima, Ion Anghel   +3 more
doaj   +1 more source

Sculpting the Sub-Saturn Occurrence Rate via Atmospheric Mass Loss

The Astrophysical Journal, 2022
Abstract The sub-Saturn (∼4–8 R ⊕) occurrence rate rises with orbital period out to at least ∼300 days. In this work we adopt and test the hypothesis that the decrease in their occurrence toward the star is a result of atmospheric mass loss, which can transform sub-Saturns into sub-Neptunes (≲4 R ...
Tim Hallatt, Eve J. Lee
openaire   +2 more sources

Frost Resistance Prediction of Concrete Based on Dynamic Multi-Stage Optimisation Algorithm

Algorithms
Concrete in cold areas is often subjected to a freeze–thaw cycle period, and a harsh environment will seriously damage the structure of concrete and shorten its life.
Xuwei Dong, Jiashuo Yuan, Jinpeng Dai
doaj   +1 more source

Continuous stellar mass-loss in N-body models of galaxies [PDF]

, 2001
We present an N-body computer code - aimed at studies of galactic dynamics - with a CPU-efficient algorithm for a continuous (i.e. time-dependent) stellar mass-loss. First, we summarize available data on stellar mass-loss and derive the long-term (20 Gyr)
B. Jungwiert, Bressan, Buta, Combes, De Jager, F. Combes, Friedli, Hasan, Heller, Hockney, Hohl, J. Palouš, Jog, Jog, Jungwiert, Junqueira, Kennicutt, Marigo, Martinet, Miller, Moore, Pfenniger, Pfenniger, Portinari, Romeo, Romeo, Salpeter, Schmidt, Schwarz, Selwood, Tinsley, Toomre   +31 more
core   +2 more sources

Two Faces of NOTCH1 in Childhood Lymphoblastic T‐Cell Neoplasia: Prognostic Divergence of Mutational and Structural Aberrations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT In pediatric patients, T‐cell lymphoblastic lymphoma (T‐LBL) survival exceeds 80%. Relapse remains associated with limited curative options. Frontline treatment is largely extrapolated from T‐cell acute lymphoblastic leukemia (T‐ALL) treatment, reflecting the ongoing debate, whether both entities represent distinct diseases or variants within ...
Marie C. Heider, Amelie Alfert, Marc Hotfilder, Birgit Burkardt, Marcel te Vrugt   +4 more
wiley   +1 more source

Fire Safety Characteristics of Pine Wood Under Low Pressure and Oxygen Enrichment

Fire
Oxygen enrichment at high altitudes indoors can be effective in meeting demand. However, the high oxygen environment inevitably brings about additional fire hazards, and the specific changes are still unclear.
Sijie Ding, Xuhong Jia, Junhao Ma, Jing Tang, Wenbing Li   +4 more
doaj   +1 more source

Effect of change factors on evaporation loss based on cold end system in natural draft counter-flow wet cooling towers

Journal of Thermal Science and Technology, 2021
The water loss caused by evaporation heat dissipation is non-negligible for a natural draft counter-flow wet cooling tower (NDWCT), which is evidently influenced by many change factors.
Wei YUAN, Fengzhong SUN, Ruqing LIU, Xuehong CHEN, Ying LI   +4 more
doaj   +1 more source

Pulsation-triggered mass loss from AGB stars: the 60-day critical period

, 2016
Low- and intermediate-mass stars eject much of their mass during the late, red giant branch (RGB) phase of evolution. The physics of their strong stellar winds is still poorly understood.
McDonald, Iain, Zijlstra, Albert
core   +1 more source

Stellar winds and mass-loss rates from Be stars [PDF]

The Astrophysical Journal, 1981
Resonance-line profiles of SiIII and SiIV lines in 22 B and Be stars have been analyzed in the derivation of mass-loss rates. Of the 19 known Be or shell stars in the sample group, all but one show evidence of winds. It is argued that for stars of spectral type B1.5 and later, SiIII and SiIV are the dominant stages of ionization, and this conclusion ...
openaire   +1 more source