Results 21 to 30 of about 239 (145)

Quantifying the Spatial Distribution of Series Resistance in Monolithic Perovskite/Silicon Tandem Solar Cells Using Voltage‐Dependent Photoluminescence Imaging

open access: yesSmall, EarlyView.
Spatially resolved series resistance in monolithic perovskite/silicon tandem solar cells is extracted using voltage‐dependent photoluminescence imaging. The method is robust against current mismatch, shunt resistance, and luminescence coupling. Even in a high‐performance 29% efficiency device, resistive losses contribute up to 1.9% absolute efficiency ...
Oliver Fischer   +18 more
wiley   +1 more source

Synergistic RU486 and olaparib therapy enhances apoptosis in endometriosis by simultaneously targeting hormonal signalling and DNA repair

open access: yesBritish Journal of Pharmacology, EarlyView.
Background and Purpose Endometriosis is a chronic, hormone‐dependent disorder characterized by ectopic implantation of endometrial tissue, often accompanied by pain and infertility. Although the progesterone receptor modulator RU486 is effective for pain relief, its impact on lesion regression is limited, possibly due to apoptosis resistance and ...
Yujie Peng   +10 more
wiley   +1 more source

Crater Observing Bioinspired Rolling Articulator (COBRA)

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 3, March 2026.
Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame   +4 more
wiley   +1 more source

Postperihelion Cometary Activity on the Outer Main-belt Asteroid 2005 XR132

open access: yesThe Planetary Science Journal
We report comet-like activity on the outer main-belt asteroid 2005 XR _132 discovered by the Lulin One-meter Telescope in early 2021 April. A series of follow-up observations were triggered to characterize the morphology and brightness variation of 2005 ...
Yu-Chi Cheng   +11 more
doaj   +1 more source

Detection of Synchronic Bands in the Dust Tail of Comet C/Hale-Bopp 1995 O1 [PDF]

open access: yesPublications of the Astronomical Society of Japan, 1997
An imaging observation of the dust tail of Comet C/Hale-Bopp 1995O1 was carried out from 1997 March 5 through 9, using a wide-field CCD imaging camera. We detected several striae of degree scale in the dust tail, which could be recognized for the whole observed period.
Jun-Ichi Watanabe   +4 more
openaire   +1 more source

Aerosol–Surface Interactions in Low‐Pressure Misty Plasma Deposition of Nanocomposite Thin Films

open access: yesPlasma Processes and Polymers, Volume 23, Issue 3, March 2026.
The Leidenfrost phenomenon helps in reducing nanoparticle agglomeration in aerosol‐assisted plasma deposition of nanocomposite thin films. Conversely, the plasma sheath could act as an electrostatic filter preventing the smallest droplets from reaching the substrate.
S. Chouteau   +6 more
wiley   +1 more source

Evidence for Fragmentation of Strongly Nonspherical Dust Particles in the Tail of Comet West 1976 VI [PDF]

open access: yesSymposium - International Astronomical Union, 1980
Following Sekanina's (1976a,b) suggestion that striae (also known as “synchronic” or pseudosynchronic bands) observed in the dust tails of several comets could be products of fragmentation of friable dust particles ejected from the nucleus, we have completed an investigation of these structures in Comet West 1976 VI (Sekanina and Farrell 1979, detailed
Z. Sekanina, J. A. Farrell
openaire   +1 more source

First Coincident Radar and Optical Observations of a Meteor Radio Afterglow

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract It has been hypothesized that Meteor Radio Afterglows (MRAs) occur due to resonant transition radiation (RTR) where suprathermal electrons emit as they pass through electron density inhomogeneities in a turbulent plasma. Meteor trails are thought to produce suprathermal electrons through anion oxidation, which can be identified through meteor ...
K. S. Obenberger   +15 more
wiley   +1 more source

Atmospheric Ion‐Neutral Coupling as a Potential Driver for Saturn's Magnetospheric Antisunward Electric Field

open access: yesGeophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Saturn's inner magnetosphere contains a weak antisunward electric field that has influenced a wide array of different aspects of the magnetospheric conditions in that region. Previously, these currents have been explained as being caused by magnetospheric drivers.
Tom S. Stallard
wiley   +1 more source

Dust Properties of the Interstellar Object 3I/ATLAS Revealed by Optical and Near-Infrared Polarimetry

open access: yesThe Astrophysical Journal Letters
We present independent polarimetric observations of the interstellar object 3I/ATLAS, including the first near-infrared polarimetric measurements. Using imaging polarimeters, we measured the degree of linear polarization from the visible R _C band (0.64 
Seungwon Choi   +19 more
doaj   +1 more source

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