Results 91 to 100 of about 52,265 (308)

Observations of a New Form of Partial Filament Eruption

The Astrophysical Journal Letters
Coronal mass ejections (CMEs) and coronal jets are two of the best-studied forms of solar eruptions, with the same underlying physics. Previous studies have presented partial eruptions producing coronal jets.
Abril Sahade, Judith T. Karpen, Spiro K. Antiochos   +2 more
doaj   +1 more source

High Light Utilization and Color Rendering in Vacuum‐Deposited Semitransparent Perovskite Solar Cells

Advanced Materials, EarlyView.
In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal, Manuel Romero, Lennart van den Hengel, Nathan Rodkey, Kassio P. S. Zanoni, Gabriel Lozano, Cristina Roldán‐Carmona, Michele Sessolo, Hernán Míguez, Henk J. Bolink   +9 more
wiley   +1 more source

Solar flux emergence : a three-dimensional numerical study

, 2008
Flux is continually emerging on the Sun, making its way from the solar interior up into the atmosphere. Emergence occurs on small-scales in the quiet Sun where magnetic fragments emerge, interact and cancel and on large-scales in active regions where ...
Murray, Michelle J.
core  

Molecular hydrogen in galaxies [PDF]

, 1987
This study aims to understand the key role played by molecular hydrogen in the evolution of galaxies, with a view to constraining its radial distribution in the Galaxy and the CO→H(_2) conversion factor α(_20).The star formation rate is shown to be ...
Wilkinson, David Adam, Wilkinson, D.A
core  

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 more
wiley   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Oxygen isotopes and sampling of the solar system

, 2020
Oxygen is the dominant element in our planetary system. It is therefore remarkable that it shows substantial isotopic diversity both in mass-dependent fractionation, because it is a light element, and in mass-independent fractionation, primarily ...
Greenwood, Richard C., Ireland, Trevor R, Greenwood, Richard C, Hicks, Leon J, Hicks, L.J., Bridges, J.C., Ireland, T.R., Avila, Janaina, Bridges, John C, Avila, J.   +9 more
core   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

Advanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine, Shashank Gupta, William Makinen, Zayvinn Lin, Krystal Delnoce, Reza Moini   +5 more
wiley   +1 more source

Solar radiation pressure augmented deorbiting from high altitude sun-synchronous orbits

, 2012
This paper discusses the use of solar radiation pressure (SRP) augmented deorbiting to passively remove small satellites from high altitude Sun-synchronous orbits. SRP-augmented deorbiting works by deploying a light-weight reflective inflatable device to
Colombo, Camilla, McInnes, Colin, Lucking, Charlotte   +2 more
core  

Temporal Evolution of the Solar Wind Bulk Velocity at Solar Minimum by Correlating the STEREO A and B PLASTIC Measurements [PDF]

, 2009
The two STEREO spacecraft with nearly identical instrumentation were launched near solar activity minimum and they separate by about 45° per year, providing a unique tool to study the temporal evolution of the solar wind.
Karrer, R., Simunac, Kristin D. C., Galvin, Antoinette B., A. Opitz, Wurz, P., Kistler, L., Bochsler, P., M. A. Lee, Wimmer-Schweingruber, R., Farrugia, C.J., Kucharek, H., Lee, M. A., Galvin, A., H. Daoudi, Farrugia, Charlie J., P. Wurz, H. Kucharek, Thompson, B., Popecki, Mark A., P. Bochsler, L. M. Kistler, Simunac, K., Lee, Martin A., Kistler, L. M., E. Möbius, Blush, L. M., Wimmer-Schweingruber, R. F., Singer, K., K. Simunac, Daoudi, H., Popecki, M., M. Popecki, Giammanco, C., B. Thompson, Lee, M., Wimmer-Schweingruber, R.F., A. B. Galvin, Opitz, A., Klecker, B., C. Giammanco, Galvin, A. B., Sigrist, M., Farrugia, C., Kistler, L.M., L. M. Blush, M. Sigrist, Blush, L., Blush, L.M., Lee, M.A., Moebius, E., Mobius, Eberhard, R. Karrer, C. J. Farrugia, Kucharek, Harald, Kistler, Lynn M., Möbius, E., Ellis, L., L. Ellis, Galvin, A.B., Farrugia, C. J., R. F. Wimmer-Schweingruber, B. Klecker, K. Singer, Ellis, Lorna   +63 more
core   +1 more source