Results 71 to 80 of about 346 (266)

Multi-wavelength dataset of aerosol extinction profiles retrieved from GOMOS stellar occultation measurements [PDF]

Atmospheric Measurement Techniques
In this paper, we present the new multi-wavelength dataset of aerosol extinction profiles, which are retrieved from the averaged transmittance spectra by the Global Ozone Monitoring by Occultation of Stars instrument aboard the Envisat satellite ...
V. F. Sofieva, M. Szelag, J. Tamminen, D. Fussen, C. Bingen, F. Vanhellemont, N. Mateshvili, A. Rozanov, C. Pohl   +8 more
doaj   +1 more source

Using the Photostationary State of Arylazopyrazoles to Control Phase Transitions of Liquid Crystals

Advanced Functional Materials, EarlyView.
A series of new arylazopyrazole photoswitches is designed as dopants for liquid crystalline materials. Unprecedented, the distribution of photoisomers at the photostationary state upon irradiation with light of specific wavelengths (365, 460, 520 nm) is used to control the liquid crystalline phase transitions under isothermal conditions, including ...
Tobias Thiele, Kristina Hrybenko, Christoph Wölper, Michael Giese   +3 more
wiley   +1 more source

Controlling 3D Contractility via Engineered Fibrous Hydrogel Composites

Advanced Functional Materials, EarlyView.
A tunable composite contractile assembly (CCA) is developed that can permit or resist contraction without changing cell‐adhesion and density, unlike collagen whose inherent coupling of these ECM cues limits its use as a platform in contractility studies.
Karen L. Xu, Yuqi Zhang, Alysse DeFoe, Georgios Kotsaris, Brendan Stoeckl, Matthew D. Davidson, Jason A. Burdick, Robert L. Mauck   +7 more
wiley   +1 more source

Measurability of the Heliocentric Momentum Enhancement from a Kinetic Impact: The Double Asteroid Redirection Test (DART) Mission

The Planetary Science Journal
The NASA Double Asteroid Redirection Test (DART) has demonstrated the capability of successfully conducting kinetic impact-based asteroid deflection missions.
Rahil Makadia, Steven R. Chesley, Davide Farnocchia, Shantanu P. Naidu, Damya Souami, Paolo Tanga, Kleomenis Tsiganis, Masatoshi Hirabayashi, Siegfried Eggl   +8 more
doaj   +1 more source

Stellar Occultation Studies of the Solar System [PDF]

Annual Review of Astronomy and Astrophysics, 1979
Earth-based observations of stellar occultations provide extremely high spatial resolution for bodies in the outer solar system, about 10,000 times better than that of traditional imaging observations. Stellar occultation data can be used to establish the structure of atmospheres and rings of solar system bodies at high spatial resolution.
openaire   +1 more source

Engineering a Sonotherapeutic RBC Membrane‐Derived Nanoparticle Platform for the Treatment of Liver Cancer

Advanced Functional Materials, EarlyView.
Herein, an RBC membrane‐derived nanoparticle (CMN‐ICG) is engineered to efficiently deliver a sonosensitizing agent, indocyanine green (ICG), for sonotherapy of hepatocellular carcinoma (HCC). CMN‐ICG exhibits excellent cytocompatibility, significantly enhances hepatocyte uptake, and produces excessive reactive oxygen species (ROS) upon ultrasound ...
Alap Ali Zahid, Aishik Chakraborty, Wei Luo, Juhi Bora, John Joseph Kelly, John Andrew Ronald, Arghya Paul   +6 more
wiley   +1 more source

All‐Aqueous Pullulan Fibers Enabling Visible‐to‐Near‐Infrared Waveguiding with Mechanical and Thermal Resilience

Advanced Functional Materials, EarlyView.
Pullulan, a biomass‐derived polysaccharide, is transformed into transparent optical fibers using a solvent‐free borax hydrogel‐spinning method. The fibers outperform PMMA with ≈200 MPa tensile strength and 200 °C stability, while uniquely guiding visible‐to‐NIR light and enabling additive‐free humidity sensing.
Yuya Fukata, Aayush Kumar Jaiswal, Ari Hokkanen, Hannes Orelma, Tadahisa Iwata   +4 more
wiley   +1 more source

Catalog of Ultraviolet Bright Stars: Strategies for UV Occultation Measurements, Planetary Illumination Modeling, and Sky Map Analyses Using Hybrid IUE-Kurucz Spectra

The Planetary Science Journal
Ultraviolet spectroscopy is a powerful method to study planetary surface composition through reflectance measurements, atmospheric composition through stellar/solar occultations, transits of other planetary bodies, and direct imaging of airglow and ...
Michael A. Velez, Kurt D. Retherford, Vincent Hue, Joshua A. Kammer, Tracy M. Becker, G. Randall Gladstone, Michael W. Davis, Thomas K. Greathouse, Philippa M. Molyneux, Shawn M. Brooks, Ujjwal Raut, Maarten H. Versteeg   +11 more
doaj   +1 more source

Validation of NO₂ and NO from the Atmospheric Chemistry Experiment (ACE) [PDF]

Atmospheric Chemistry and Physics, 2008
Vertical profiles of NO2 and NO have been obtained from solar occultation measurements by the Atmospheric Chemistry Experiment (ACE), using an infrared Fourier Transform Spectrometer (ACE-FTS) and (for NO2) an ultraviolet-visible-near-infrared ...
M. Schneider, A. Richter, M. Ridolfi, P. Raspollini, C. Randall, J.-P. Pommereau, C. Piccolo, C. Nowlan, J. Notholt, F. Nichitiu, D. Murtagh, S. Mikuteit, S. Melo, C. A. McLinden, C. T. McElroy, G. Manney, M. López-Puertas, E. J. Llewellyn, I. Kramer, J. Kar, N. Jones, N. Huret, M. Höpfner, F. Hendrick, C. S. Haley, F. Goutail, D. W. T. Griffith, B. Funke, D. Fussen, D. G. Dufour, J. R. Drummond, J. Dodion, V. Catoire, J. P. Burrows, S. Brohede, C. Brogniez, C. D. Boone, K. Bramstedt, T. Blumenstock, G. Berthet, P. F. Bernath, R. L. Batchelor, L. K. Amekudzi, K. A. Walker, E. Dupuy, K. Strong, M. A. Wolff, T. Kerzenmacher, O. Schrems, M. Silicani, G. P. Stiller, J. Taylor, C. Tétard, M. Toohey, F. Vanhellemont, T. Warneke, J. M. Zawodny, J. Zou   +57 more
doaj  

A Warm Layer in the Nightside Mesosphere of Mars

Geophysical Research Letters, 2020
We report a new set of stellar occultation measurements for nightside temperature profiles made by the Mars Atmosphere and Volatile EvolutioN/Imaging Ultraviolet Spectrograph that provide evidence for a recurring layer of warm air between 70 and 90 km ...
Hiromu Nakagawa, Sonal K. Jain, Nicholas M. Schneider, Franck Montmessin, Roger V. Yelle, Fayu Jiang, Loic Verdier, Takeshi Kuroda, Nao Yoshida, Hitoshi Fujiwara, Takeshi Imamura, Naoki Terada, Kaori Terada, Kanako Seki, Hannes Gröller, Justin I. Deighan   +15 more
doaj   +1 more source