Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Topic List  Advanced Search  
Sample search results for: 10-micron silicate feature

Page:   2  3  4  5 
 
1 Chondrites and the Protoplanetary Disk ASP Conference Series, Vol. 341, 2005
 

Summary:  , based on the presence of an 11.2-micron shoulder within the broad 10-micron silicate-stretching mode... identified in Comet C/2001 Q4 (NEAT) via 10-micron observations (Wooden et al. 2004). The Mg-rich silicates... the structure of the 10-µm ...

  

Source: Brearley, Adrian J. - Department of Earth and Planetary Sciences, University of New Mexico

 

Collection: Geosciences

 
2 UCRL-ABS-209107 AMORPHIZATION OF FORSTERITE GRAINS DUE TO HIGH ENERGY HEAVY ION IRRADIATION
 

Summary:  features characteristic of amorphous material [2, 3]. The absence of crystalline silicates in diffuse ISM... or transmitted light is measured. For the mid-IR this spot size is 3 to 10 microns in diameter. A sychrotron... of amorphous silicates and carbona- ceous grains. ISO (Infrared ...

  

Source: Martin, Michael C. - Advanced Light Source, Lawrence Berkeley National Laboratory

 

Collection: Physics ; Materials Science

 
3 Division of Astronomy and Space Physics Dust-driven Winds of Cool Giants
 

Summary:  (> 10 micron). Molecules in the outflow contribute molecular features (electronic and vib-rot bands), e... have recently suggested photon scattering on Fe-free silicate grains as a viable mechanism but we... - free silicate grains which are highly transparent in the near IR. Including ...

  

Source: Uppsala Universitet, Department of Theoretical Physics

 

Collection: Physics

 
4 HIGH FE CONTENTS IN PRESOLAR SILICATE GRAINS: PRIMARY FEATURE OR THE RESULT OF SECONDARY
 

Summary:  HIGH FE CONTENTS IN PRESOLAR SILICATE GRAINS: PRIMARY FEATURE OR THE RESULT OF SECONDARY PROCESSING... feature. Non-equilibrium condensation in stellar outflows is expected to produce silicates with higher Fe... -93, PO Box 999, Richland, WA 99352, USA. E-mail: floss@wustl.edu. Introduction: ...

  

Source: Washington University in St. Louis, Department of Physics, Laboratory for Space Sciences

 

Collection: Physics

 
5 COCO22 Laser Heating System at GSECARSLaser Heating System at GSECARS Alexei Yu. Kuznetsov, Vitali B. Prakapenka*, Andrew J. Campbell,Alexei Yu. Kuznetsov, Vitali B. Prakapenka*, Andrew J. Campbell, Thomas S. Duffy, Guoyin Shen, Dion L. Heinz, Mark L. Riv
 

Summary:  -line CO2 (10 micron wavelength) laser heating system has been designed and constructed at GSECARS, Sector... measurements, and monitoring of the heating process. X-ray diffraction measurements of silicates in DAC at high... at Sector 13 (APS) is supported by COMPRES and GSECARS. On-line laser heating setup: key ...

  

Source: Campbell, Andrew - Department of Geology, University of Maryland at College Park

 

Collection: Geosciences

 
6 The Astrophysical Journal, 550:L213L217, 2001 April 1 2001. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary:  by the fact that the 10 mm silicate emission feature is not detected in the diffuse interstellar medium (ISM... component. Nondetection of the 10 mm silicate emission feature in the diffuse interstellar me- dium (ISM... the 10 mm silicate emission feature may be ...

  

Source: Draine, Bruce T. - Department of Astrophysical Sciences, Princeton University Observatory; Li, Aigen - Department of Physics and Astronomy, University of Missouri-Columbia

 

Collection: Physics

 
7 The Astrophysical Journal, 550:L213--L217, 2001 April 1 # 2001. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary:  by the fact that the 10 mm silicate emission feature is not detected in the diffuse interstellar medium (ISM... silicate grains as a significant grain component. Nondetection of the 10 mm silicate emission feature... grains cannot be ruled out since the 10 mm ...

  

Source: Draine, Bruce T. - Department of Astrophysical Sciences, Princeton University Observatory

 

Collection: Physics

 
8 STRUCTURE, ELEMENTAL COMPOSITION AND ISOTOPIC COMPOSITION OF PRESOLAR SILICATES IN MET 00426. R. M. Stroud1
 

Summary:  condensation process. The 10-micron region of the IR spectra of most circumstellar disks appears devoid... STRUCTURE, ELEMENTAL COMPOSITION AND ISOTOPIC COMPOSITION OF PRESOLAR SILICATES IN MET 00426. R. M... , 1 Brookings Dr., St. Louis, MO 63130. Introduction: Other than nanodiamonds, silicates are the most

  

Source: Washington University in St. Louis, Department of Physics, Laboratory for Space Sciences

 

Collection: Physics

 
9 MID-AND FAR-INFRARED SPECTROSCOPY AT THE ADVANCED LIGHT SOURCE. S. Bajt1 , J. Bradley2
 

Summary:  or transmitted light is measured. For the mid- IR this spot size is 3 to 10 microns in diameter (Fig. 2). Fig. 2... : Spot size in mid-infrared at ALS beamline 1.4.3. is 3 to 10 microns. An MCT-A detector and KBr... . Infrared spectroscopy data from the 3 x 10 micron ...

  

Source: Martin, Michael C. - Advanced Light Source, Lawrence Berkeley National Laboratory

 

Collection: Physics ; Materials Science

 
10 To appear in Proc. of ``The Universe as Seen by'', ESA SP427 A SILICATE CARBON STAR AS SEEN BY ISO \Lambda
 

Summary:  carbon star observed by ISO. The profile of the silicate dust feature in the star does not show any... changes since the IRAS LRS observation in 1983. The silicate feature is dominated by the amor­ phous... The silicate carbon stars are a group of carbon stars which show prominent ...

  

Source: Yamamura, Issei - Department of Infrared Astrophysics, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency

 

Collection: Physics

 
11 To appear in Proc. of "The Universe as Seen by", ESA SP-427 A SILICATE CARBON STAR AS SEEN BY ISO
 

Summary:  by ISO. The profile of the silicate dust feature in the star does not show any changes since the IRAS LRS... observation in 1983. The silicate feature is dominated by the amor- phous component, and crystalline silicate... are a group of carbon stars which show prominent ...

  

Source: Yamamura, Issei - Department of Infrared Astrophysics, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency

 

Collection: Physics

 
12 THE DETECTION OF CRYSTALLINE SILICATES IN ULTRALUMINOUS INFRARED GALAXIES H. W. W. Spoon,1,2
 

Summary:  and 18 m due to amor- phous silicates in a subset of this sample. These features betray the presence... vibrations of silicate bonds. Because of the width of these features, these silicates must have an amor... - phous structure. These broad amorphous silicate ...

  

Source: Spoon, Henrik - Department of Astronomy, Cornell University

 

Collection: Physics

 
13 THE ASTROPHYSICAL JOURNAL, 558:165175, 2001 September 1 ( 2001. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary:  of the 10 km silicate feature seen in the spectra of oxygen-rich circumstellar dust shells. In order... the classic narrow silicate feature at 10 km. Increasing the optical depth of the shell produces spectral... of the classic silicate feature at 10 km compared to ...

  

Source: Sloan, Gregory C. - Department of Astronomy, Cornell University

 

Collection: Physics

 
14 Mon. Not. R. Astron. Soc. 391, L49L53 (2008) doi:10.1111/j.1745-3933.2008.00553.x On the anomalous silicate emission features of active galactic nuclei
 

Summary:  silicate emission features of active galactic nuclei: a possible interpretation based on porous dust M. P... that the observed peak shift and profile broadening of the 9.7 m silicate emission feature can be explained in terms... detection of the silicate absorption ...

  

Source: Li, Aigen - Department of Physics and Astronomy, University of Missouri-Columbia

 

Collection: Physics

 
15 Mon. Not. R. Astron. Soc. 334, 840846 (2002) Modelling the astronomical silicate features I. On the spectrum
 

Summary:  Mon. Not. R. Astron. Soc. 334, 840­846 (2002) Modelling the astronomical silicate features ­ I... in modelling the silicate emission/absorption features in the literature. An equally important problem has... substantial ice mantle effects to the silicate features ...

  

Source: Li, Aigen - Department of Physics and Astronomy, University of Missouri-Columbia

 

Collection: Physics

 
16 Mon. Not. R. Astron. Soc. 382, L26L29 (2007) doi:10.1111/j.1745-3933.2007.00382.x On the crystallinity of silicate dust in the interstellar medium
 

Summary:  , in the diffuse ISM, the observed 9.7- and 18-m silicate features are broad and relatively featureless, suggest... cent on the crystallinity of interstellar silicates, based on a detailed analysis of the 9.7-m feature... features. Indeed, in this Letter we show that ignoring the ice ...

  

Source: Li, Aigen - Department of Physics and Astronomy, University of Missouri-Columbia

 

Collection: Physics

 
17 arXiv:astro-ph/0310863v130Oct2003 Astronomy & Astrophysics manuscript no. paper 30th October 2003 (DOI: will be inserted by hand later)
 

Summary:  stars like Vega, where the increased luminosity shifts the typical blowout size to about 10 micron... of the aggregate. In other words, we expect to see the small parti- cle crystalline silicate emission features... crystalline silicate dust grains exhibit characteristic ...

  

Source: Dominik, Carsten - Sterrenkundig Instituut "Anton Pannekoek", Universiteit van Amsterdam

 

Collection: Physics

 
18 HIGH ABUNDANCES OF PRESOLAR SILICATES IN ANTARCTIC MICROMETEORITES; IMPLICATIONS FOR THEIR COMETARY ORIGINS. T. Yada1,2,3
 

Summary:  HIGH ABUNDANCES OF PRESOLAR SILICATES IN ANTARCTIC MICROMETEORITES; IMPLICATIONS FOR THEIR COMETARY... ) chondrites [1, 2]. We previously reported the presence of presolar silicates in Antarctic micrometeorites... (AMMs) [3] (note a related correction below). Here, we present a revised abundance of presolar silicates

  

Source: Washington University in St. Louis, Department of Physics, Laboratory for Space Sciences

 

Collection: Physics

 
19 The Astrophysical Journal, 719:166189, 2010 August 10 doi:10.1088/0004-637X/719/1/166 C 2010. The American Astronomical Society. All rights reserved. Printed in the U.S.A.
 

Summary:  report the identification of presolar silicates (177 ppm), presolar oxides (11 ppm), and one presolar Si... nitride. The O-isotopic compositions of the presolar silicates and oxides indicate that most of the grains... , few presolar silicate grains have isotopic compositions pointing to low-metallicity, low-mass stars

  

Source: Washington University in St. Louis, Department of Physics, Laboratory for Space Sciences

 

Collection: Physics

 
20 The Astrophysical Journal, 655: L77L80, 2007 February 1 2007. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary:  to study the distribution of the strength of the 9.7 mm silicate feature. Average spectra are derived... of strong silicate absorption and the absence of PAH features in samples chosen from extreme values of IR... , especially the silicate features at 9.7 and 18 mm ...

  

Source: Spoon, Henrik - Department of Astronomy, Cornell University

 

Collection: Physics


Page:   2  3  4  5 
Page:   1  2  3  4  5 
 
21 Experimental studies of metal-silicate partitioning of Sb: implications for the terrestrial and lunar mantles.
 

Summary:  the beam over 10 x 10 micron area. Standards include both natural (kaersutite, wollastonite, chromite... 1 Experimental studies of metal-silicate partitioning of Sb: implications for the terrestrial... , temperature, pressure, and silicate and me- tallic melt compositions, on the magnitude of silmet Sb

  

Source: Campbell, Andrew - Department of Geology, University of Maryland at College Park

 

Collection: Geosciences

 
22 A study of frequency and size distribution dependence of extinction for astronomical silicate and graphite grains
 

Summary:  #12;0 0.0006 0.0012 0.0018 0.0024 0.25 0.5 0.75 1 Extinction Frequency (10/micron) Figure 2: 16 #12... ;Figure 3: 17 #12;Figure 4: 18 #12;-1 -0.5 0 0.5 1 0.25 0.5 0.75 1 Percenterror Frequency (10/micron... A study of frequency and size distribution dependence of extinction for astronomical ...

  

Source: Inter University Centre for Astronomy and Astrophysics (IUCAA), India

 

Collection: Physics

 
23 A mineralogy of extrasolar silicate dust from 10-mm spectra J. E. Bowey1,2P
 

Summary:  - resolved observations of 10-mm circumstellar features with fine structures attributed to silicate dust... classic `9.7-mm' silicate features which were subdivided into classes A (7 stars), B (11 stars), C (12... silicate bump, 15 had broad features with no bump, and ...

  

Source: Bowey, Janet - Department of Physics and Astronomy, University College London

 

Collection: Physics

 
24 Experimental studies of metal-silicate partitioning of Sb: implications for the terrestrial and lunar mantles.
 

Summary:  quenched silicate melt and metallic melt were analyzed by rastering the beam over 10 x 10 micron area. All... 1 Experimental studies of metal-silicate partitioning of Sb: implications for the terrestrial... of experiments to isolate several variables such as oxygen fugacity, tempera- ture, pressure, and ...

  

Source: Drake, Michael J. - Lunar and Planetary Laboratory, Department of Planetary Sciences, University of Arizona

 

Collection: Physics ; Geosciences

 
25 arXiv:1110.3754v1[astro-ph.SR]17Oct2011 The 2008 outburst of EX Lup -Silicate crystals in motion
 

Summary:  features between April 2008 and October 2008 also changed. In Fig. 5 it can be seen that the 10 micron... of the outburst. Six months later, however, the crystallinity in the 10 µm silicate feature complex decreased. Our... disks originates. Sharp features of ...

  

Source: Henning, Thomas - Max-Planck-Institut für Astronomie

 

Collection: Physics

 
26 CHARACTERIZATION OF PRESOLAR SILICATE AND OXIDE GRAINS USING NANOSIMS AND AUGER SPECTROSCOPY. A. N. Nguyen1
 

Summary:  CHARACTERIZATION OF PRESOLAR SILICATE AND OXIDE GRAINS USING NANOSIMS AND AUGER SPECTROSCOPY. A. N... . Introduction: Presolar silicates condensed in the outflows of red giant stars and supernovae. In studying... conditions and compositions of the stellar atmospheres during grain condensation. Presolar silicates

  

Source: Washington University in St. Louis, Department of Physics, Laboratory for Space Sciences

 

Collection: Physics

 
27 The Astrophysical Journal, 625:L75L78, 2005 June 1 2005. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary:  of silicate emission at 10 and 18 mm in five PG quasars, the first detection of these two features in galaxies... (AGNs), which predicts that an AGN torus seen pole-on should show a silicate emission feature in the mid... -infrared. The strengths of the detected silicate emission ...

  

Source: Sloan, Gregory C. - Department of Astronomy, Cornell University; Spoon, Henrik - Department of Astronomy, Cornell University

 

Collection: Physics

 
28 Katharina Lodders, Washington University Saint Louis for Zenit, April 2007
 

Summary:  to a micron in size ­ some rare examples were up to 10 microns in diameter. This was large enough... indicated that other types of red giant stars have oxide and silicate dust. Hence, presolar dust from... such stars should also be expected in the meteorites. However, a silicate or oxide from a star behaves

  

Source: Washington University in St. Louis, Department of Physics, Laboratory for Space Sciences

 

Collection: Physics

 
29 To appear in Proc. of ``The First ISO workshop on Analytical Spectroscopy with SWS, LWS, PHTS, and CAM CVF'', ESA SP419 (revised, Nov. 26, 1997)
 

Summary:  emission features. The shape of the silicate features has not changed since the IRAS Low Resolution... time (Willems and de Jong 1986), we could expect a change in shape of the silicate features... with the mass­loss rate expected for stars with silicate emission ...

  

Source: Yamamura, Issei - Department of Infrared Astrophysics, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency

 

Collection: Physics

 
30 Author's personal copy Coexisting silicate melt inclusions and H2O-bearing, CO2-rich fluid inclusions in mantle
 

Summary:  in orthopyroxene. Images of (c) and (e) were obtained from synchrotron source and MCT detector using 10×10 micron... . Images of (f) and (h) were obtained from synchrotron source and MCT detector using 10×10 micron aperture... Author's personal copy Coexisting silicate melt inclusions ...

  

Source: Bodnar, Robert J. - Department of Geosciences, Virginia Tech

 

Collection: Geosciences

 
31 Project EARTH-12-BW3: Volatile loss from planets and asteroids
 

Summary:  by the presence of molten or partially molten silicate exteriors and liquid metal cores. In the cases of Earth... , Mars and Moon, the high accretional energies and chemical compositions of the silicate mantles point... to deep molten silicate layers (magma oceans) accompanying accretion. One of the major questions

  

Source: Henderson, Gideon - Department of Earth Sciences, University of Oxford

 

Collection: Geosciences

 
32 Project EARTH-11-BW2: Volatile loss from planets and asteroids
 

Summary:  by the presence of molten or partially molten silicate exteriors and liquid metal cores. In the cases of Earth... , Mars and Moon, the high accretional energies and chemical compositions of the silicate mantles point... to deep molten silicate layers (magma oceans) accompanying accretion. One of the major questions

  

Source: Henderson, Gideon - Department of Earth Sciences, University of Oxford

 

Collection: Geosciences

 
33 ASTRONOMY & ASTROPHYSICS NOVEMBER I 2000, PAGE 437 SUPPLEMENT SERIES
 

Summary:  of a broad feature with an emerging 9.7 µm silicate bump; and four silicate AGB groups in which a "clas- sic... " 9.7 µm silicate feature gets progressively narrower. Likewise, the supergiant spectra have also been... Super, where the feature ex- tends from about 9 ...

  

Source: Speck, Angela Karen - Department of Physics and Astronomy, University of Missouri-Columbia

 

Collection: Physics

 
34 FURTHER DETECTIONS OF OH MASERS IN CARBON STARS WITH SILICATE
 

Summary:  FURTHER DETECTIONS OF OH MASERS IN CARBON STARS WITH SILICATE FEATURES M. Szymczak Toru’n Centre... The silicate emission features at about 10 and 18 #22;m are characteristic for oxygen--rich dust envelopes... still remains controversial. A stability of the silicate ...

  

Source: Szczerba, Ryszard - Department of Astrophysics, Centrum Astronomiczne im. M. Kopernika

 

Collection: Physics

 
35 ASTROMINERALOGY OF THE 13 m FEATURE IN THE SPECTRA OF OXYGEN-RICH ASYMPTOTIC GIANT BRANCH STARS. I. CORUNDUM AND SPINEL
 

Summary:  of the emerging 13 m feature from corundum and spinel grains. We have modeled various corundum, spinel, corundum-silicate... of the dust feature, which reflects a progression from a broad feature to the classic narrow 10 m silicate... -rich silicates (the narrow 10 m ...

  

Source: Speck, Angela Karen - Department of Physics and Astronomy, University of Missouri-Columbia

 

Collection: Physics

 
36 Glasstech. Ber. Glass Sci. Technol. 75 C2 (2002) 1 Linear and Nonlinear Photoionization of Silicate Glasses
 

Summary:  Glasstech. Ber. Glass Sci. Technol. 75 C2 (2002) 1 Linear and Nonlinear Photoionization of Silicate... in this direction is rather long and counts hundreds of publications dedicated to features of optical absorption... , photoinduced phenomena, and laser-induced damage of silicate glasses. The discussion will be concentrated

  

Source: Glebov, Leon - School of Optics (CREOLE), University of Central Florida

 

Collection: Materials Science ; Physics

 
37 Noble gas solubilities in silicate melts: new experimental results and a comprehensive model of the effects of liquid composition, temperature and pressure.
 

Summary:  : for a bubble 10 micron in size, which could elude optical investigations, we calculate a contribution... 1 Noble gas solubilities in silicate melts: new experimental results and a comprehensive model... in natural and synthetic silicate melts. The model expands the concept of ionic porosity in terms of ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
38 The Generation of Granitic Magmas by Intrusion of Basalt into Continental Crust
 

Summary:  for thermal relaxation of the continental crust (> 107 y). Several of the features of silicic igneous systems... ; Bacon, 1986). Petrological and geochemical features of many silicic igneous rocks are also convincingly... into continental crust, melting and generation of silicic magma ...

  

Source: Huppert, Herbert - Institute of Theoretical Geophysics, Department of Applied Mathematics and Theoretical Physics, University of Cambridge

 

Collection: Geosciences

 
39 ACAPULCOITE COMPLEXITIES: CLUES FROM TRACE ELEMENT DISTRIBUTIONS. C. Floss1
 

Summary:  , NWA 725 and Dhofar 125. These meteorites exhibit features suggesting they may be more primitive than... . Trace element (e.g., the REE, Ti, Zr and Y) distributions in the silicates and in merrillite... probably not experienced any silicate partial melting. The trace element abundances of many silicate grains

  

Source: Washington University in St. Louis, Department of Physics, Laboratory for Space Sciences

 

Collection: Physics

 
40 A&A 440, 179184 (2005) DOI: 10.1051/0004-6361:20053263
 

Summary:  determination of the (re)crystallization activation energy of an irradiated olivine-type silicate Z. Djouadi1, L... Received 19 April 2005 / Accepted 13 May 2005 Abstract. To study the evolution of silicate dust... life-cycle was developed. Using the silicate 10 µm band as an indicator, the evolution

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics


Page:   1  2  3  4  5 
Page:   1  2  3  4  5 
 
41 PERGAMON Planetary and Space Science 36 "0888# 676684 9921!9522:88:, ! see front matter 0888 Elsevier Science Ltd[ All rights reserved[
 

Summary:  of the silicate emission feature "Maas et al[\ 0869# con_rmed the existence of refractory material in comets along... spectra and the silicate features for a large set of samples are needed[ 3[ Comet Hale!Bopp "C:0884 O0... of dust properties based on the evolution of the silicate ...

  

Source: Li, Aigen - Department of Physics and Astronomy, University of Missouri-Columbia

 

Collection: Physics

 
42 Astron. Astrophys. 338, 364370 (1998) ASTROPHYSICS
 

Summary:  comets, systematic observations of the thermal emission spectra and the silicate features for a large set... that silicates are a major component of cometary dust particles since the 10 µm Si-O stretching emission feature... emission were restricted to the LP comets. No distinct 10 µm ...

  

Source: Li, Aigen - Department of Physics and Astronomy, University of Missouri-Columbia

 

Collection: Physics

 
43 PII S0016-7037(02)00863-3 Implications from concentrations and isotopic data for Pb partitioning processes in soils
 

Summary:  , organic matter, Fe-oxides, and silicates (non-labile). From an analysis of the concentrations and isotopic... is of predominantly natural origin and is primarily associated with silicates (69­81%) and Fe-oxides (11­19%). Natural... silicates. A similar treatment of the data reported for semiarid Mediterranean soils indicates

  

Source: Simon, Emmanuel - Institute of Earth Sciences, Hebrew University of Jerusalem

 

Collection: Geosciences

 
44 Journal of Colloid and Interface Science 246, 2128 (2002) doi:10.1006/jcis.2001.8054, available online at http://www.idealibrary.com on
 

Summary:  online at http://www.idealibrary.com on A Silicate Gel for Promoting Deposition of Lipid Bilayers Kathryn... for modifying a polymer surface to induce lipid bilayer formation by vesicle fusion is described. A silicate gel... ; the rough silicate surface induced adsorption of a vesicle layer. A high-frequency acoustic waveguide ...

  

Source: Gizeli, Electra - Institute of Molecular Biology and Biotechnology, Foundation of Research and Technology, Hellas

 

Collection: Biology and Medicine ; Biotechnology

 
45 Control mechanisms for the oceanic distribution of silicon isotopes Andre G. Wischmeyer,1
 

Summary:  , the HAMOCC4 is capable of reproducing the most important feature for the silicic acid supply to the system... ; revised 1 May 2003; accepted 22 May 2003; published 13 August 2003. [1] Marine diatoms take up silicic... the silicic acid concentration and its silicon isotope composition is not a simple Rayleigh ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
46 Interactions of Silicate Ions with Zinc(II) and Aluminum(III) in Alkaline Aqueous Solution
 

Summary:  Interactions of Silicate Ions with Zinc(II) and Aluminum(III) in Alkaline Aqueous Solution Michel R... 16, 2005 We present 29 Si, 27 Al, and 67 Zn NMR evidence to show that silicate ions in alkaline... , with aluminate (Al(OH)4 - ). Zincate reacts with monomeric silicate at pH 14-15 to form [(HO)O2Si-O-Zn(OH)3

  

Source: Sahai, Nita - Department of Geology and Geophysics, University of Wisconsin at Madison

 

Collection: Geosciences

 
47 A&A 489, 633650 (2008) DOI: 10.1051/0004-6361:200810121
 

Summary:  . 3. Spitzer/IRS spectrum of IM Lupi. The large features of amor- phous silicates are seen at 10... the fit of the 10 m continuum subtracted silicates feature. The thick grey line represents the observed... ). The IRS spectrum of IM Lupi clearly shows silicate emis- sion ...

  

Source: Schneider, Glenn - Department of Astronomy, University of Arizona

 

Collection: Physics

 
48 expression site, in its long set of 70-bp repeats. Boothroyd et al.1
 

Summary:  wavelengths that are characteristic of crystalline silicates. These distinct emission features are also seen... superimposed on the broad, 9.7-m band of amorphous silicates. These features are similar to those observed... features of crystalline silicates. It would ...

  

Source: Li, Aigen - Department of Physics and Astronomy, University of Missouri-Columbia

 

Collection: Physics

 
49 Preprint typeset using L A T E X style emulateapj v. 6/22/04 THE UNUSUAL SILICATE DUST AROUND HV 2310, AN EVOLVED STAR IN THE LMC
 

Summary:  shell of silicate dust with unusual spectral structure in the 10 µm feature, with an emission peak at 9... plot the spectra at all wavelengths with no smoothing. A silicate emission feature at 10 µm dominates... sample SP classify optically thin silicate emission (SE) ...

  

Source: Sloan, Gregory C. - Department of Astronomy, Cornell University

 

Collection: Physics

 
50 Preprint typeset using LATEX style emulateapj v. 6/22/04 THE UNUSUAL SILICATE DUST AROUND HV 2310, AN EVOLVED STAR IN THE LMC
 

Summary:  plot the spectra at all wavelengths with no smoothing. A silicate emission feature at 10 µm dominates... sample SP classify optically thin silicate emission (SE) features by using the ratios of the dust... amorphous alumina grains, to SE8, the classic silicate ...

  

Source: Sloan, Gregory C. - Department of Astronomy, Cornell University

 

Collection: Physics

 
51 MID-INFRARED SPECTROPOLARIMETRIC CONSTRAINTS ON THE CORE-MANTLE INTERSTELLAR DUST MODEL
 

Summary:  ), the silicate absorption/polarization features (Draine & Lee 1984; Greenberg & Li 1996; Mathis 1998... features would provide a powerful constraint on the dust morphology. The ubiquitous 9.7 lm silicate... or the 9.7 lm feature is polarized while the other is not, one can then ...

  

Source: Li, Aigen - Department of Physics and Astronomy, University of Missouri-Columbia

 

Collection: Physics

 
52 SILICATES IN ULTRALUMINOUS INFRARED GALAXIES M. M. Sirocky,1
 

Summary:  simulations of radiative transfer. Quantifying the silicate emission and absorption features that appear near... at all optical depths. With high-quality spectra, we successfully use the silicate features to constrain... high 18 m/10 m absorption ratio of the silicate ...

  

Source: Spoon, Henrik - Department of Astronomy, Cornell University

 

Collection: Physics

 
53 The Astrophysical Journal, 613:L145L148, 2004 October 1 2004. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary:  silicate feature is broad and featureless, both of which suggest that the silicate 1 National Astronomical... with amorphous silicates and sharper features arising from crystalline silicates (Waters et al. 1996... or emission features with ...

  

Source: Li, Aigen - Department of Physics and Astronomy, University of Missouri-Columbia

 

Collection: Physics

 
54 The Astrophysical Journal, 498:L83L87, 1998 May 1 1998. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary:  is characterized by the strongest 10 mm silicate feature ever observed for a comet. Equally special is the highest... poor fit to the observation. The predicted silicate feature is too broad and too shallow, while... , for a fixed porosity, the fit to the silicate ...

  

Source: Li, Aigen - Department of Physics and Astronomy, University of Missouri-Columbia

 

Collection: Physics

 
55 HYDRATED SILICATES ON EDGEWORTH-KUIPER OBJECTS PROBABLE WAYS OF FORMATION
 

Summary:  probably the spectral features may be attributed to hydrated silicates originated in the bodies. We... silicate content could facilitate detection of phyllosilicate spectral features. 1. Introduction Edgeworth... -albedo asteroids (Vilas, 1994; Howell et al., 2001). We have predicted a possibility of ...

  

Source: Busarev, Vladimir V. - Sternberg Astronomical Institute, Moscow University

 

Collection: Physics

 
56 ASP Conference Series, Vol. **VOLUME***, **YEAR OF PUBLICATION** **NAMES OF EDITORS**
 

Summary:  silicates Amorphous silicates are the most common solid-state component in AGB stars. The emission features... CN1-1 showing the pres- ence of both AIB and crystalline silicate features. 3. Aromatic and aliphatic... identified a variety of inorganic grains, including amorphous ...

  

Source: preprints/reprints & other

 

Collection: Physics

 
57 Cement & Concrete Science Conference: Leeds, 2009 Hydration of alite containing aluminium
 

Summary:  in cement is tricalcium silicate which leads during its hydration to the nucleation and growth of calcium... silicate hydrate (referred to C-S-H (CaO)x-SiO2-(H2O)y). The development of this hydrate around the cement... the tricalcium silicate in cements is alite. This name relates to all polymorphs containing various foreign ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
58 Dynamics of metal-silicate separation in a terrestrial magma Tobias Hoink, Jorg Schmalzl, and Ulrich Hansen
 

Summary:  Dynamics of metal-silicate separation in a terrestrial magma ocean Tobias Ho¨ink, Jo¨rg Schmalzl... -48149 Mu¨nster, Germany (hoeink@earth.uni-muenster.de) [1] In a terrestrial magma ocean, the metal-silicate... the separation of metal droplets from the liquid silicate, occurs on a characteristic timescale, which

  

Source: Schmalzl, Jörg - Department of Geophysics, Westfälische Wilhelms-Universität Münster

 

Collection: Geosciences

 
59 Microsymposium 34, MS012, 2001 SOME OBSERVATIONAL INDICATIONS OF THE HISTORY AND SRUCTURE OF OUR
 

Summary:  /h) silicates in the matter of the M- and S- asteroids. It seems the spectral features superimpose... reddish to red) of the small planets corresponding to these of metal iron and igneous silicate assemblages... . But observational data suggesting the presence of highly oxidized or even hydrated silicates on ...

  

Source: Busarev, Vladimir V. - Sternberg Astronomical Institute, Moscow University

 

Collection: Physics

 
60 Astron. Astrophys. 331, 291313 (1998) ASTROPHYSICS
 

Summary:  26 June 1997 / Accepted 19 September 1997 Abstract. The 10 µm silicate emission feature... successful discovery of the silicate feature by Telesco & Knacke (1991) and the subsequent con- firmations... feature char- acteristic of crystalline silicate (Knacke et ...

  

Source: Li, Aigen - Department of Physics and Astronomy, University of Missouri-Columbia

 

Collection: Physics


Page:   1  2  3  4  5 
Page:   1  2  3  4  5 
 
61 Glasstech. Ber. Glass Sci. Technol. 75 C2 (2002) 298 Photoinduced Chemical Etching of Silicate and Borosilicate Glasses
 

Summary:  Glasstech. Ber. Glass Sci. Technol. 75 C2 (2002) 298 Photoinduced Chemical Etching of Silicate... . However, those data are in a contradiction with published data on radiation defect generation in silicate... of the photoinduced etching in silicate glasses. 2. Experimental The following materials were used as samples

  

Source: Glebov, Leon - School of Optics (CREOLE), University of Central Florida

 

Collection: Materials Science ; Physics

 
62 On magma chamber evolution during slow effusive eruptions Andrew W. Woods and Herbert E. Huppert
 

Summary:  ; and (4) the eruption rate of the silicic magma, where we assume that the crystals and bubbles remain... for times of order 1­10 years if the main body of silicic magma is saturated in volatiles. In addition... at the base of an evolved and relatively cold layer of more viscous silicic magma. We examine the subsequent

  

Source: Huppert, Herbert - Institute of Theoretical Geophysics, Department of Applied Mathematics and Theoretical Physics, University of Cambridge

 

Collection: Geosciences

 
63 The Astrophysical Journal, 666: L73L76, 2007 September 10 2007. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary:  SILICATE ABSORPTION FEATURE AND INFRARED DIFFERENTIAL EXTINCTION IN DENSE CLOUDS J. E. Chiar,1 K. Ennico,2... of sight show the 9.7 mm silicate feature. Unlike in the diffuse ISM where a tight linear correlation... between the 9.7 mm silicate feature optical depth ...

  

Source: Berkeley Illinois Maryland Association (BIMA)

 

Collection: Physics

 
64 Icarus 153, 197207 (2001) doi:10.1006/icar.2001.6665, available online at http://www.idealibrary.com on
 

Summary:  1999. The 10-micron silicate seature of Comet C/1996 Q1 (Tabur). Astron. J. 118, 1423­1429. Kawakita, H... our observations were made. The spectrum exhibited a very weak silicate feature without any strong... µmemissionspectra.Ontheother hand, Hanner et al. (1994) explained the weak or ...

  

Source: Stüwe, Jogy - Sterrewacht, Universiteit Leiden

 

Collection: Physics

 
65 Meteoritics & Planetary Science 38, Nr 9, 12991317 (2003) Abstract available online at http://meteoritics.org
 

Summary:  microprobe (JEOL JXA 8800; 15 kV, 5 nA; beam diameter: 1­10 microns) at the Museum für Naturkunde in Berlin... . The clasts are embedded in a porous, 10 micron-size matrix composed mainly of calcite, feldspar, and quartz... JXA 8800; 15 kV, 5 nA; beam diameter: 10 ...

  

Source: Claeys, Philippe - Department of Geology, Vrije Universiteit Brussel

 

Collection: Geosciences

 
66 GLASSES IN TUCSON (IRUNGR): A SIMS STUDY, M. E. Varela1 , E. Zinner,2
 

Summary:  was unfortunately lost. However, the very particular feature of the silicate 28.1 FeO 0.19 0.19 0.81 0.23 0.42 MgO 1... . Introduction: Tucson is a unique ataxite iron meteorite with about 8 vol% silicates [1]. The high Si (0.8 wt... %) and the very low Ge content of the metal [2] make Tucson distinctive among the iron meteorites ...

  

Source: Washington University in St. Louis, Department of Physics, Laboratory for Space Sciences

 

Collection: Physics

 
67 First principles investigation of scaling trends of zirconium silicate interface band offsets
 

Summary:  First principles investigation of scaling trends of zirconium silicate interface band offsets... out to investigate the scaling trends of band offsets at model silicon/zirconium silicate interfaces... . Owing to the d character of zirconium silicate conduction bands, the band gap and band offset are shown

  

Source: Dutton, Robert W. - Department of Electrical Engineering, Stanford University

 

Collection: Engineering ; Computer Technologies and Information Sciences

 
68 First Performance Results for the New ContinumTM IR Microscope Michael C. Martin, Hoi-Ying Holman and Wayne R. McKinney
 

Summary:  ) and Nexus 870 FTIR bench (right). #12;10 microns in diameter) so its signal to noise ratio is only affected... at aperture sizes smaller than 10 microns. The synchrotron is observed to have a better signal to noise than... reaches 10×10 microns, and a usable signal ...

  

Source: Lawrence Berkeley National Laboratory, Advanced Light Source, Beamlines 1.4.1, 1.4.2, and 1.4.3

 

Collection: Physics

 
69 CHARACTERIZATION OF PRESOLAR SILICATE AND OXIDE GRAINS IN PRIMITIVE CARBONACEOUS CHONDRITES
 

Summary:  CHARACTERIZATION OF PRESOLAR SILICATE AND OXIDE GRAINS IN PRIMITIVE CARBONACEOUS CHONDRITES Ann N... meteorites. Eleven presolar silicates and eight presolar oxides were identified in the primitive carbonaceous... presolar silicates and five presolar oxide grains were identified in the CO3 chondrite ALHA 77307, for abun

  

Source: Washington University in St. Louis, Department of Physics, Laboratory for Space Sciences

 

Collection: Physics

 
70 American Mineralogist, Volume 88, pages 13901394, 2003 0003-004X/03/08091390$05.00 1390
 

Summary:  INTRODUCTION It is 30 years since the first models for predicting the vis- cosity (h) of silicate melts... in natural silicate melts is deciding how to partition the effects of composition across the parameters... - * E-mail: krussell@eos.ubc.ca High-temperature limits on viscosity of non-Arrhenian silicate melts J

  

Source: Russell, Kelly - Department of Earth and Ocean Sciences, University of British Columbia

 

Collection: Geosciences

 
71 The Tucson ungrouped iron meteorite and its relationship to chondrites G. KURAT1,2
 

Summary:  have occurred during the formation of Tucson silicate inclusions. This feature is also reminiscent of C... ­Tucson is an enigmatic ataxitic iron meteorite, an assemblage of reduced silicates embedded in Fe-Ni metal with dissolved... Si and Cr. Both, silicates and metal, contain a record of formation at high ...

  

Source: Washington University in St. Louis, Department of Physics, Laboratory for Space Sciences

 

Collection: Physics

 
72 Synthesis of Mesostructured Nickel Oxide with Silica Xinghua Liu,
 

Summary:  disappeared after calcination. The addition of sodium silicate in the precursor solutions produced... for the nickel silicate mesophase. TEM-EDXS showed that the Si/ Ni molar ratio in the mesophase is 0... have investigated the synthesis of mesoporous materials other than silicates such as transition metal

  

Source: Aksay, Ilhan A. - Department of Chemical Engineering, Princeton University

 

Collection: Materials Science

 
73 Ecole Doctorale 364 : Sciences Fondamentales et Appliques N attribu par la bibliothque
 

Summary:  décembre 2008 CARACTERISATION IN-SITU DES MECANISMES DE DISPERSION DE LA SILICE DANS UNE MATRICE ELASTOMERE... ...................................................................................................................... 5 II. Les mélanges à base de silice pour la bande de roulement... ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
74 Dynamics of core formation and equilibration by negative Bayerisches Geoinstitut, Universitat Bayreuth, D-95440 Bayreuth, Germany (henri.samuel@uni-bayreuth.de)
 

Summary:  -8093 Zu¨rich, Switzerland (ptackley@ethz.ch) [1] We investigate dynamically the timing and metal-silicate... axisymmetric geometry, we follow the sinking of iron-rich diapirs through a viscous silicate mantle. We carried... as for the silicate melt generation and distribution around the diapir. Using these scaling laws, we show ...

  

Source: Samuel, Henri - Bayerisches Geoinstitut, Universität Bayreuth; Tackley, Paul J. - Institut für Geophysik, Eidgenössische Technische Hochschule Zürich (ETHZ)

 

Collection: Geosciences

 
75 THE ASTROPHYSICAL JOURNAL, 502:833846, 1998 August 1 1998. The American Astronomical Society. All rights reserved. Printed in U.S.A.(
 

Summary:  Ðcant sharpening of the silicate feature near maximum light cannot be fully explained by heating and cooling... . The general narrowing of the silicate feature observed may reÑect the evolution of the preexisting dirty... environments often produce spectra evincing a feature near 9.7 km ...

  

Source: California at Berkeley, University of - Space Sciences Laboratory, Infrared Spatial Interferometer Group; Monnier, John D. - Department of Astronomy, University of Michigan

 

Collection: Physics

 
76 January 8, 2011 Infrared Emission from the Composite Grains: Effects of Inclusions
 

Summary:  for the circumstellar dust. Conclusions. The results on the composite grains clearly indicate that the silicate feature... features or the ra- tio R=Flux(18µ)/Flux(10µ) with respect to the silicate grains. It must be noted here... ) also did not find any shift in the 10µm or 18µm ...

  

Source: Inter University Centre for Astronomy and Astrophysics (IUCAA), India

 

Collection: Physics

 
77 American Mineralogist, Volume 78, pages 1320-1323, 1993 Crystal chemistry of ferromagnesian silicate spinels
 

Summary:  of ferromagnesian silicate spinels: Evidence for Mg-Si disorder ROBERT M. HAZEN, ROBERT T. DOWNS, LARRY W. FINGER... have been obtained for synthetic Fe-Mg silicate spinels, -y-(MgxFel-x)2Si04 (x = 1.00, 0.40, and 0... thus far are inconclusive regarding the question of disorder in magnesium-silicate spinel." They also

  

Source: Downs, Robert T. - Department of Geosciences, University of Arizona

 

Collection: Geosciences

 
78 Present address: Department of Geology, 245 Natural History Building, University of Illinois, 1301 W. Green Street, Urbana, Illinois 61801, U.S.A. E-mail address: jmjackso@uiuc.edu.
 

Summary:  Mineralogist Vol. 39, pp. 187-195 (2001) A RE-EVALUATION OF THE STRUCTURE OF WEEKSITE, A URANYL SILICATE... share equatorial edges to form chains, which in turn share polyhedron edges with silicate tetrahedra... . The uranyl silicate chains are linked to crankshaft-like chains of vertex-sharing silicate ...

  

Source: Jackson, Jennifer M. - Division of Geological and Planetary Sciences, California Institute of Technology

 

Collection: Geosciences

 
79 **FULL TITLE** ASP Conference Series, Vol. **VOLUME**, **YEAR OF PUBLICATION**
 

Summary:  absorption at 9.7 m (e.g, Mason et al. 2006). In the Galaxy the silicate feature is found both in diffuse... . Optical depth of the 3.4-m hydrocarbon absorption feature (Geballe et al. 2009) and the 9.7-m silicate... of CO, as well as evidence that the 3.4-m hydrocarbon absorption feature ...

  

Source: Oka, Takeshi - Department of Chemistry & Department of Astronomy and Astrophysics, University of Chicago

 

Collection: Chemistry ; Physics

 
80 ATOMIC SCALE MODELING OF SILICATE INTERFACE PROPERTIES FOR
 

Summary:  ATOMIC SCALE MODELING OF SILICATE INTERFACE PROPERTIES FOR HIGH-K GATE DIELECTRIC APPLICATIONS... as silicates (e.g. ZrSixOy). Since the quality of the Si interface will ultimately determine the feasibility... of an alternative dielectric, this work has focused on the interface properties of silicates in the context of MOS

  

Source: Dutton, Robert W. - Department of Electrical Engineering, Stanford University

 

Collection: Engineering ; Computer Technologies and Information Sciences


Page:   1  2  3  4  5 
Page:   1  2  3  4  5 
 
81 FIRST PRESOLAR SILICATE DISCOVERED IN AN ANTARCTIC MICROMETEORITE. , F. J. Stadermann1
 

Summary:  ]. The most striking feature of this presolar silicate phase is its size. It is larger than any presolar... FIRST PRESOLAR SILICATE DISCOVERED IN AN ANTARCTIC MICROMETEORITE. T. Yada1,2 , F. J. Stadermann1... matter which has become a building block of our solar system. Recently, presolar silicates have been

  

Source: Washington University in St. Louis, Department of Physics, Laboratory for Space Sciences

 

Collection: Physics

 
82 FIRST PRESOLAR SILICATE DISCOVERED IN AN ANTARCTIC MICROMETEORITE. , F. J. Stadermann1
 

Summary:  ]. The most striking feature of this presolar silicate phase is its size. It is larger than any presolar... FIRST PRESOLAR SILICATE DISCOVERED IN AN ANTARCTIC MICROMETEORITE. T. Yada1,2 , F. J. Stadermann1... matter which has become a building block of our solar system. Recently, presolar silicates have been

  

Source: Washington University in St. Louis, Department of Physics, Laboratory for Space Sciences

 

Collection: Physics

 
83 1675 The Meteoritical Society, 2009. Printed in USA. Meteoritics & Planetary Science 44, Nr 10, 16751681 (2009)
 

Summary:  by the Stardust mission, we determine that the crystalline Fe-bearing silicate fraction in this Jupiter... of pristine interstellar material, should contain only amorphous silicates since interstellar silicates... silicates to be present in comets (Hanner et al. 1994). At temperatures above ~1000 K, ...

  

Source: Lawrence Berkeley National Laboratory, Advanced Light Source, Experimental Systems Group, Applications for Beamline 10.3.2

 

Collection: Physics

 
84 Astrochemistry: Recent Successes and Current Challenges Proceedings IAU Symposium No. 231, 2005
 

Summary:  , revealing absorption features of both amorphous and crystalline silicates, aliphatic hydrocarbons, water ice... deep 10 µm silicate absorption feature. Instead of the commonly detected PAH emission features, the 5... , with IRAS 07598 displaying a weak silicate ...

  

Source: Spoon, Henrik - Department of Astronomy, Cornell University

 

Collection: Physics

 
85 Mon. Not. R. Astron. Soc. 320, 131138 (2001) Discs and the 10-mm silicate spectra of young stellar objects with non-
 

Summary:  silicate emission (e.g., Taurus-Elias 1; Hanner, Brooke & Tokunaga 1994), net silicate absorption features... (e.g., Taurus-Elias 7, HL Tau) or no silicate feature; sometimes these continua also contain a photo... emission peaks nearer (or within) the 10-mm band so that the spectrum ...

  

Source: Bowey, Janet - Department of Physics and Astronomy, University College London

 

Collection: Physics

 
86 Chemical weathering in the Hong (Red) River basin: Rates of silicate weathering and their controlling factors
 

Summary:  Chemical weathering in the Hong (Red) River basin: Rates of silicate weathering... /(Na* + K) ratios in summer suggesting more intensive silicate weathering. We quantified the input from rain... , evaporite, carbonate, and silicate reservoirs using forward and inverse models and examined the robustness

  

Source: Chamberlain, C. Page - Department of Geophysics, Stanford University

 

Collection: Geosciences

 
87 samples D1, D2, and D3. For sample D1, the onset of the simulated imaginary permeability
 

Summary:  Discovery of Ancient Silicate Stardust in a Meteorite Ann N. Nguyen* and Ernst Zinner We have discovered... nine presolar silicate grains from the carbonaceous chon- drite Acfer 094. Their anomalous oxygen... -rich silicate. One grain is enriched in 26 Mg, which is attributed to the radioactive decay of 26 Al

  

Source: Washington University in St. Louis, Department of Physics, Laboratory for Space Sciences

 

Collection: Physics

 
88 Mineral stimulation of subsurface microorganisms: release of limiting nutrients from silicates
 

Summary:  Mineral stimulation of subsurface microorganisms: release of limiting nutrients from silicates... ; accepted 11 September 2003 Abstract Microorganisms play an important role in the weathering of silicate... an important role in the microbial ecology. Silicate minerals often contain nutrients necessary for microbial

  

Source: Bennett, Philip - Department of Geological Sciences, University of Texas at Austin; Roberts, Jennifer A. - Department of Geology, University of Kansas

 

Collection: Environmental Sciences and Ecology ; Geosciences

 
89 American Mineralogist, Volume 90, pages 371381, 2005 0003-004X/05/0203371$05.00/DOI: 10.2138/am.2005.1599 371
 

Summary:  and other silica-bearing miner- als. The form of dissolved silica in brine is usually mono-silicic acid, Si... , amorphous silica is often contaminated with metals in higher salinity brines. The most common metal silicate... scales encountered in geothermal brine-handling systems are Fe and Al silicates (Manceau et al. 1995

  

Source: Lawrence Berkeley National Laboratory, Advanced Light Source, Experimental Systems Group, Applications for Beamline 10.3.2; Manceau, Alain - Laboratoire de Géophysique Interne et Tectonophysique, Observatoire de Grenoble, Université Joseph Fourier

 

Collection: Geosciences ; Physics

 
90 NanoSIMS analysis and Auger electron spectroscopy of silicate and oxide stardust from the carbonaceous chondrite Acfer 094
 

Summary:  compositions, i.e., lower their Fig. 3. FE-SE images of specific features of presolar silicates. (a) Elliptical... NanoSIMS analysis and Auger electron spectroscopy of silicate and oxide stardust from... ; available online 23 August 2009 Abstract We have detected 138 presolar silicate, 20 presolar oxide and ...

  

Source: Floss, Christine - Laboratory for Space Sciences & Department of Physics, Washington University in St. Louis; Washington University in St. Louis, Department of Physics, Laboratory for Space Sciences

 

Collection: Physics

 
91 SPECTROSCOPY WITH DARWIN: THE CASE FOR R ? 100 J. E. Bowey 1 and J. A. Yates 2
 

Summary:  ) or higher. Key words: DARWIN; MIR spectroscopy; life trac­ ers; dust properties: silicates. 1... ­20¯m spec­ troscopic features that DARWIN would detect from nearby planetary atmospheres. We digitised... ) contains a strong feature at 9.5¯m, but how can one tell if it is a bad pixel? Figure 2 has no ``noise

  

Source: Bowey, Janet - Department of Physics and Astronomy, University College London

 

Collection: Physics

 
92 doi:10.1016/S0016-7037(03)00425-3 Calculation of 29
 

Summary:  doi:10.1016/S0016-7037(03)00425-3 Calculation of 29 Si NMR shifts of silicate complexes... of ether or ester-like complexes of silicate with organic compounds has long been debated in the literature... for ab initio molecular orbital calculations of 29 Si NMR shifts and formation energies of silicate

  

Source: Sahai, Nita - Department of Geology and Geophysics, University of Wisconsin at Madison

 

Collection: Geosciences

 
93 PRESOLAR FE OXIDE FROM THE ACFER 094 CARBONACEOUS CHONDRITE.
 

Summary:  of presolar silicate grains [e.g., 1, 2]. However, little is known about the compositions of many... of Acfer 094 silicate matrix material [3] in order to investigate the elemental and isotopic compositions... of both silicate and oxide grains. We have identified presolar grains from Acfer 094 on the basis

  

Source: Washington University in St. Louis, Department of Physics, Laboratory for Space Sciences

 

Collection: Physics

 
94 -> Rise Report No. 355 Ris National Laboratory
 

Summary:  % SO? in atmospheric air. >5 LU to < LU a: o 20 10 x o UJ fraction < 10 microns ion 56-400 microns- 10... , steenstrupine and uranium-con- taining pigmentary material (altered Zr containing silicate minerals... in a few cases has the method been proposed for silicate minerals. Recovery of Be from ...

  

Source: Risø National Laboratory

 

Collection: Multidisciplinary Databases and Resources

 
95 Structure and dynamics of silicate glasses and melts I. FARNAN* AND M. T. DOVE
 

Summary:  Structure and dynamics of silicate glasses and melts I. FARNAN* AND M. T. DOVE Department of Earth... of Silicate Glasses and Melts'. The meeting was sponsored by the Mineral Physics group of the Mineralogical... (Aberystwyth), with the title `Structure and ionic transport in disordered silicates' (Greaves, 2000

  

Source: Dove, Martin - Department of Earth Sciences, University of Cambridge

 

Collection: Materials Science ; Geosciences

 
96 Floppy modes and the Boson peak in crystalline and amorphous silicates: an inelastic neutron scattering study
 

Summary:  Floppy modes and the Boson peak in crystalline and amorphous silicates: an inelastic neutron... neutron scattering study of a crystalline polymorph of SiO2 (a-quartz), and a number of silicate glasses... (pure silica, SiO2, and three glasses in the alkali silicate series (K,Li)2Si2O5). We demonstrate

  

Source: Dove, Martin - Department of Earth Sciences, University of Cambridge

 

Collection: Materials Science ; Geosciences

 
97 Submitted to 32nd Lunar and Planetary Science Conference, March 12-16,
 

Summary:  absorption band probably connected with oxidized and hydrated silicates. Similar absorption features were... , Abstract 1927. OXIDIZED AND HYDRATED SILICATES ON M- AND S- ASTEROIDS: SPECTRAL INDICATIONS. V. V. Busarev... of metal iron and ig- neous silicate assemblages [e. g., 1, 2]. But observational data ...

  

Source: Busarev, Vladimir V. - Sternberg Astronomical Institute, Moscow University

 

Collection: Physics

 
98 THE ASTROPHYSICAL JOURNAL, 530:408417, 2000 February 10 2000. The American Astronomical Society. All rights reserved. Printed in U.S.A.(
 

Summary:  .2. Absorption Feature at 10 Microns All Ðve observed sources show absorption features around 10 km (Fig. 3... OF EXTREME CARBON STARS 415 TABLE 4 FITTING PARAMETERS TO THE ABSORPTION FEATURE AROUND 10 MICRONS j 0 p... , and their carbon-rich ...

  

Source: preprints/reprints & other

 

Collection: Physics

 
99 BED-Vol. 53, 2002 Advances in Bioengineering RADIATIVE PROPERTIES OF POLAR BEAR HAIR
 

Summary:  at a diffraction limited focused spot size of less than 10 microns. Using this facility, we designed... .4.3 at the ALS. The reflection measurements were made using a gold slide. A 10 micron IR spot was focused... . In this instance, 10 microns (or 1000 wavenumbers) ...

  

Source: Martin, Michael C. - Advanced Light Source, Lawrence Berkeley National Laboratory

 

Collection: Physics ; Materials Science

 
100 MORPHOLOGICAL STRUCTURE AND CHEMICAL COMPOSITION OF COMETARY NUCLEI AND DUST
 

Summary:  a dust-to-gas ratio. The discovery of the silicate emission feature (Maas et al., 1970) confirmed... m to 14 m as well as the 10 m silicate feature in terms of the comet modeled as a porous aggregate... of the thermal emission spectra and the silicate features for a ...

  

Source: Li, Aigen - Department of Physics and Astronomy, University of Missouri-Columbia

 

Collection: Physics


Page:   1  2  3  4  5