A Bayesian Description of the Loss Process

1985 ◽  
pp. 225-245 ◽  
Author(s):  
John M. Cozzolino
Keyword(s):  
Loss Process

scholarly journals Non-variable horizontal-branch stars

1997 ◽  
Vol 189 ◽  
pp. 363-368
Author(s):  
Robert T. Rood
Keyword(s):  
Mass Loss ◽  
Physical Basis ◽  
Horizontal Branch ◽  
Loss Process ◽  
Horizontal Branch Stars ◽  
Theoretical Results ◽  
Branch Morphology

For 25 years our ignorance of the physical basis of this mass loss process has been the barrier to progress in understanding horizontal branch morphology. I review some recent observational and theoretical results which may be giving us clues about the nature of the mass loss process.

Denitrification as the dominant nitrogen loss process in the Arabian Sea

Nature ◽  
2009 ◽  
Vol 461 (7260) ◽  
pp. 78-81 ◽  
Author(s):  
B. B. Ward ◽  
A. H. Devol ◽  
J. J. Rich ◽  
B. X. Chang ◽  
S. E. Bulow ◽  
...  
Keyword(s):  
Arabian Sea ◽  
Nitrogen Loss ◽  
Loss Process

Correction model for CO detection in the coal combustion loss process in mines based on GWO-SVM

2021 ◽  
pp. 104439
Author(s):  
Jun Deng ◽  
Wei-Le Chen ◽  
Ce Liang ◽  
Wei-Feng Wang ◽  
Yang Xiao ◽  
...  
Keyword(s):  
Coal Combustion ◽  
Correction Model ◽  
Loss Process ◽  
Combustion Loss ◽  
Co Detection

Keto Trim Fast : Most Powerful Review & Fast Details! v1

2022 ◽  
Author(s):  
trimfastketo not provided
Keyword(s):  
Weight Loss ◽  
Loss Process ◽  
Weight Loss Process

Ketosis has been one of the biggest weight loss buzzwords of the last decade. Ketosis is a proven weight loss process your body enters when fasting or following a keto diet.

scholarly journals Lifetime of Meteor Streams Associated with Comet Halley

1991 ◽  
Vol 126 ◽  
pp. 323-326
Author(s):  
M. Hajdukova ◽  
A. Hajduk
Keyword(s):  
Mass Loss ◽  
Structural Features ◽  
Critical Examination ◽  
Meteor Showers ◽  
Orbital Parameters ◽  
Loss Process ◽  
Meteor Streams ◽  
Flux Data ◽  
Large Particles ◽  
Comet Halley

AbstractCritical examination of the orbital parameters of particles ejected from comet Halley rejects the low age hypotheses for meteor showers associ- ated with the comet. The diffusion of the orbits of large particles is too slow for explaining the observed structural features of the stream. The mass-loss process as derived from space observations compared with the mass of the stream of particles deduced from flux data lead to comet lifetimes of the order of 105years.

scholarly journals Masers: Probing the mass loss process in PPN

1997 ◽  
Vol 180 ◽  
pp. 348-349
Author(s):  
Dieter Engels
Keyword(s):  
Mass Loss ◽  
Large Amplitude ◽  
Planetary Nebulae ◽  
Transition Process ◽  
Main Line ◽  
Agb Stars ◽  
Loss Process ◽  
Bipolar Outflow ◽  
Sky Survey ◽  
Sizeable Number

With the advent of the IRAS All-Sky Survey a sizeable number of transition objects between the AGB and the PN-phase were found - the Proto Planetary Nebulae (PPN). Oxygen-rich AGB stars often show prominent masers of SiO, H2O, and OH, which are lost during the transition process. The heavy mass loss on the AGB however does not stop abruptly and a new axisymmetric wind develops during the PPN phase. These winds both may host new masers and they can be used to study the changes of the mass loss process after that the stars have stopped their large-amplitude variations on the AGB. Several PPN are known to have OH masers, and at least in one case, HD 101584, the presence of a bipolar outflow could be proven (te Lintel Hekkert et al. 1992). Lewis (1989) found that main-line OH masers become prominent again. I will discuss here conclusions, which can be drawn from observations of H2O masers in PPN.

scholarly journals Rapid hydrolysis of tertiary isoprene nitrate efficiently removes NOx from the atmosphere

2020 ◽  
Vol 117 (52) ◽  
pp. 33011-33016
Author(s):  
Krystal T. Vasquez ◽  
John D. Crounse ◽  
Benjamin C. Schulze ◽  
Kelvin H. Bates ◽  
Alexander P. Teng ◽  
...  
Keyword(s):  
Transport Model ◽  
Deuterium Oxide ◽  
Ambient Air ◽  
Water Volume ◽  
Isomer Ratio ◽  
Atmospheric Measurements ◽  
Laboratory Findings ◽  
Loss Process ◽  
Isomer Distribution ◽  
Hydrolysis Of

The formation of a suite of isoprene-derived hydroxy nitrate (IHN) isomers during the OH-initiated oxidation of isoprene affects both the concentration and distribution of nitrogen oxide free radicals (NOx). Experiments performed in an atmospheric simulation chamber suggest that the lifetime of the most abundant isomer, 1,2-IHN, is shortened significantly by a water-mediated process (leading to nitric acid formation), while the lifetime of a similar isomer, 4,3-IHN, is not. Consistent with these chamber studies, NMR kinetic experiments constrain the 1,2-IHN hydrolysis lifetime to less than 10 s in deuterium oxide (D2O) at 298 K, whereas the 4,3-IHN isomer has been observed to hydrolyze much less efficiently. These laboratory findings are used to interpret observations of the IHN isomer distribution in ambient air. The IHN isomer ratio (1,2-IHN to 4,3-IHN) in a high NOx environment decreases rapidly in the afternoon, which is not explained using known gas-phase chemistry. When simulated with an observationally constrained model, we find that an additional loss process for the 1,2-IHN isomer with a time constant of about 6 h best explains our atmospheric measurements. Using estimates for 1,2-IHN Henry’s law constant and atmospheric liquid water volume, we show that condensed-phase hydrolysis of 1,2-IHN can account for this loss process. Simulations from a global chemistry transport model show that the hydrolysis of 1,2-IHN accounts for a substantial fraction of NOx lost (and HNO3 produced), resulting in large impacts on oxidant formation, especially over forested regions.

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