Results 51 to 60 of about 1,344 (291)

First climatology of polar mesospheric clouds from GOMOS/ENVISAT stellar occultation instrument [PDF]

Atmospheric Chemistry and Physics, 2010
GOMOS (Global Ozone Monitoring by Occultation of Stars), on board the European platform ENVISAT launched in 2002, is a stellar occultation instrument combining four spectrometers and two fast photometers which measure light at 1 kHz sampling rate in the ...
K. Pérot, A. Hauchecorne, F. Montmessin, J.-L. Bertaux, L. Blanot, F. Dalaudier, D. Fussen, E. Kyrölä   +7 more
doaj  

Resolving the Cu(bdc) Conundrum: Identifying Non‐Porous Packing of Prototypical Coordination‐Network Thin Films Combining Advanced Diffraction Techniques and Computational Modelling

Advanced Functional Materials, EarlyView.
Solution‐processed Cu(bdc) forms prototypical MOF thin films for which a multitude of not fully satisfactory structural models have been suggested. Combining rotating grazing‐incidence diffraction and X‐ray reflectivity on two complementary samples with density‐functional theory, we first discard the previously suggested models and then identify a non ...
Narges Taghizade, Mario Fratschko, Robbin Steentjes, Mercedes Linares‐Moreau, Paolo Falcaro, Christof Wöll, Roland Resel, Egbert Zojer   +7 more
wiley   +1 more source

Direct comparisons of GOMOS and SAGE III NO₃ vertical profiles [PDF]

Atmospheric Measurement Techniques, 2012
In this paper, we present the first global comparisons between the two unique satellite-borne data sets of nitrogen trioxide (NO3) vertical profiles retrieved from the GOMOS (Global Ozone Monitoring by the Occultation of Stars) stellar occultations and ...
J. R. Moore, E. Kyrölä, J. Tamminen, J. Hakkarainen   +3 more
doaj   +1 more source

The colibri telescope array for KBO detection through serendipitous stellar occultations: A technical description

Frontiers in Astronomy and Space Sciences, 2022
We present the technical design, construction and testing of the Colibri telescope array at Elginfield Observatory near London, Ontario, Canada. Three 50-cm telescopes are arranged in a triangular array and are separated by 110–160 m.
Michael J. Mazur, Stanimir Metchev, Stanimir Metchev, Rachel A. Brown, Rachel A. Brown, Ridhee Gupta, Richard Bloch, Tristan Mills, Emily Pass   +8 more
doaj   +1 more source

Central flashes during stellar occultations

Astronomy & Astrophysics
Context . Central flashes may occur during stellar occultations by objects in the Solar System. Aims . Catalog diffraction effects on the flash with point-like stars, monochromatic waves, and different cases of spherical transparent ...
B. Sicardy, L. Dettwiller
openaire   +3 more sources

The Detection of Stellar Systems by Lunar Occultations [PDF]

International Astronomical Union Colloquium, 1977
AbstractA few examples of the resolution of very close multiple stars by the method of lunar occultation are described. In this way both the power and some of the limitations of this technique may be demonstrated.
openaire   +1 more source

Artery‐on‐Chip Demonstrates Mechanical and Functional Features of Healthy and Diseased Living Smooth Muscle Tissue

Advanced Functional Materials, EarlyView.
This article details the development of an artery‐on‐chip platform for in vitro arterial disease modeling and therapeutic discovery. It describes the fabrication of a fibrin biomaterial scaffold seeded with iPSC‐derived smooth muscle and endothelial cells, mimicking native artery properties. Two genetic disease models showcase the platform's ability to
Danielle Yarbrough, Roy Chen, Katerina Katsouleas, Jaron Shoemaker, Travis Brady, Tianfang Yu, Jennifer Arthur Ataam, Connor Amelung, Lakshmi Santhanam, Ioannis Karakikes, Sharon Gerecht   +10 more
wiley   +1 more source

Aerosol extinction profiles at 525 nm and 1020 nm derived from ACE imager data: comparisons with GOMOS, SAGE II, SAGE III, POAM III, and OSIRIS [PDF]

Atmospheric Chemistry and Physics, 2008
The Canadian ACE (Atmospheric Chemistry Experiment) mission is dedicated to the retrieval of a large number of atmospheric trace gas species using the solar occultation technique in the infrared and UV/visible spectral domain.
F. Vanhellemont, C. Tetard, A. Bourassa, M. Fromm, J. Dodion, D. Fussen, C. Brogniez, D. Degenstein, K. L. Gilbert, D. N. Turnbull, P. Bernath, C. Boone, K. A. Walker   +12 more
doaj  

Infusible Extracellular Matrix Biomaterial Enhances Cell‐Specific Pro‐Repair Responses Following Acute Myocardial Infarction

Advanced Healthcare Materials, EarlyView.
We measure the cell‐specific responses of administering infusible ECM (iECM) in acute myocardial infarction (MI) across multiple timepoints. Using single‐nucleus RNA sequencing and spatial transcriptomics, we measure macrophage activation, fibroblast remodeling, increased vascular development, lymphangiogenesis, cardioprotection, and neurogenesis ...
Joshua M. Mesfin, Alexander Chen, Quincy P. Lyons, Michael B. Nguyen, Maria L. Karkanitsa, Justin Yu, Van K. Ninh, Emily Gardner, Elyse G. Wong, Sriya N. Paleti, Julian Cheng, Benjamin D. Bridgelal, Kate E. Reimold, Selena Cao, Connor Uhre, Colin G. Luo, Zhenxing Fu, Kevin R. King, Karen L. Christman   +18 more
wiley   +1 more source

Constraints on the Atmospheric Composition of 2002 XV93 from JWST Spectroscopy

The Astrophysical Journal Letters
The recent detection of an atmosphere surrounding the trans-Neptunian object (TNO) 2002 XV _93 from stellar occultation measurements has challenged the longstanding view that only the largest TNOs can sustain an atmosphere.
Ian Wong, Silvia Protopapa, Emmanuel Lellouch   +2 more
doaj   +1 more source