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Processing of Presolar Grains around Post-Asymptotic Giant Branch Stars: Silicon Carbide as the Carrier of the 21 Micron Feature
(Institute of Physics, 2004)
Some proto-planetary nebulae (PPNs) exhibit an enigmatic feature in their infrared spectra at ~21 μm. This feature is not seen in the spectra of either the precursors to PPNs, the asymptotic giant branch (AGB) stars, or the successors of PPNs...
The 21 micron and 30 micron circumstellar dust features in evolved C-rich objects
(2008)
The 21micron and 30micron bands are the strongest dust emission features detected in evolved low- and intermediate-mass C-rich stars (i.e. asymptotic giant branch [AGB] stars, proto-planetary nebulae [PPN], and planetary nebulae [PN]). While the 21...
M.D. day features speakers, singers, and students, old and new
(University of Missouri. Alumni Association, 1973)
"The 1972 M.D. Day program, coinciding with the School's 100th birthday, featured six prominent alumni."--Page 15...
Astromineralogy of the 13 μm Feature in the Spectra of Oxygen-rich Asymptotic Giant Branch Stars. I. Corundum and Spinel
(American Astronomical Society, 2006)
Asymptotic giant branch (AGB) stars have several interesting infrared spectral features. Approximately half the oxygen-rich AGB stars to be investigated spectroscopically exhibit a feature at ~13 μm. The carrier of this feature has not yet been...
Feature Extraction in Images
(Institute of Electrical and Electronics Engineers, 1971-10)
The problem considered is the extraction of features from a complicated set of images. In this approach the basic concepts used in the feature extraction process are: 1)an algorithm that enumerates regions; 2)a search for large objects...
The Effect Of Stellar Pulsation Cycles On Dust Formation: A Temporal Study Of Mid-infrared Spectrum Of O-rich AGB Star, T Cep
(American Institute of Physics, 2009)
pulsation cycle. The observed spectral dust features change over the pulsation cycle of this Mira. In general, the overall apparent changes in spectral features can be attributed to changes in the dust temperature, resulting from the intrinsic pulsation...
On Silicon Carbide Grains as the Carrier of the 21 Micron Emission Feature in Post-Asymptotic Giant Branch Stars
(American Astronomical Society, 2005)
The mysterious 21 mm emission feature seen in 12 proto-planetary nebulae remains unidentified since its first detection in 1989. Over a dozen candidate materials have been proposed within the past decade, but none of them have received general...
Real-time Tracking and Pose Estimation for Industrial Objects using Geometric Features
(IEEE, 2003-09)
features, and yet it is very accurate and robust. For that reason both constraints were satisfied the algorithm runs at 60 fps (30 fps for each stereo image) an a PIII-800MHz computer, and the pose of the object is calculated within an uncertainty of 2.4 mm...
Dysmorphic features: common syndromes and sequences
(Family Physicians Inquiries Network, 2010)
This issue of eMedRef provides information to clinicians on the pathophysiology, diagnosis, and therapeutics of common syndromes and sequences fund with dysmorphic features....
The Effect of Stellar Evolution on SiC Dust Grain Sizes
(American Astronomical Society, 2005)
in the nature of the dust that is produced. Carbon-rich AGB stars are known to produce silicon carbide (SiC). Furthermore, observations of the ~11 μm SiC feature show that the spectral features change in a sequence that correlates with stellar evolution. We...
On the Anomalous Silicate Emission Features of AGNs: A Possible Interpretation Based on Porous Dust
(arXiv, 2008)
silicate emission feature can be explained in terms of porous composite dust consisting of ordinary interstellar amorphous silicate, amorphous carbon and vacuum. Porous dust is naturally expected in the dense circumnuclear region around AGNs, as a...
On Magnesium Sulfide as the Carrier of the 30 μm Emission Feature in Evolved Stars
(Institute of Physics, 2009)
A large number of carbon-rich evolved objects (asymptotic giant branch stars, protoplanetary nebulae, and planetary nebulae) in both the Milky Way galaxy and the Magellanic Clouds exhibit an enigmatic broad emission feature at ~ 30 μm. This feature...
The 10 μm Feature of M-Type Stars in the Large Magellanic Cloud and the Dust Condensation Sequence
(American Astronomical Society, 2005)
feature in the 7-14 mm region, which is seen in either emission or (self-) absorption. The shape of the feature changes with increasing mass-loss rate, M, suggesting a change in dust ˙M mineralogy as the central star evolves. At low mass-loss rates...
Automated Processing of High Resolution Satellite Imagery for Feature Extraction and Mapping of Urban Areas
(EOM Earth Observation Magazine, 2005-01)
Bird and ORBIMAGE's OrbView-3). The spatial resolution and spectral information provided by these sensors make them well-suited
for urban area applications. The high spatial resolution (0.6-1m) allows the delineation of fine-scale features in the urban environment...
Calculating the 3D-Pose of Rigid-Objects Using Active Appearance Models
(IEEE, 2004-05)
-based approach. The results show that the accuracy in pose estimation of our new appearance-based methods is better than using the geometric-based approach. Moreover, since appearance-based methods do not require customized feature extractions, the new features...
Hyperactivity and Hyperagreement in Bantu
(2011)
relations must have an unchecked uninterpretable feature. For Indo-European DPs the sole Activity feature in A-relations is Case; but I argue here that grammatical gender, a component of Bantu noun class, is uninterpretable too. Case and nominal gender...
On the Carriers of the 21 Micron Emission Feature in Post-Asymptotic Giant Branch Stars
(arXiv, 2009)
The mysterious 21micron emission feature seen in sixteen C-rich proto-planetary nebulae (PPNe) remains unidentified since its discovery in 1989. Over a dozen of materials are suggested as the carrier candidates. In this work we quantitatively...
Graduates support school featured in Life magazine
(University of Missouri. Alumni Association, 1971)
"'If you can't write for Life -- the next best thing is to be in it!' says Nancy Hochman Roucher, BJ '60, wife of Jerry Roucher, AB '60."--Page 8
Automated Estimation of Elder Activity Levels from Anonymized Video Data
(IEE, 2009-09)
Significant declines in quality of life for elders in assisted living communities are typically triggered by health events. Given the necessary information, such events can often be predicted, and thus, be avoided or reduced ...
Dysmorphic features: isolated dysmorphologies
(Family Physicians Inquiries Network, 2010)
This issue of eMedRef provides information to clinicians on the pathophysiology, diagnosis, and therapeutics of isolated dysmorphic features....