Results 81 to 90 of about 498 (257)

In Situ Pseudo‐Halide Diffusion Enables Buried Interface Regulation and Crystallinity Enhancement in Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
Thermally activated LiHCOO induces in situ pseudo‐halide diffusion, promoting buried interface strain release and perovskite crystallization. The monoclinic LiHCOO phase forms an open framework structure that enhances HCOO− diffusion and drives interfacial restructuring.
Chao Gao   +4 more
wiley   +1 more source

Development of Torus and Kink Instabilities in Eruptive Prominences

open access: yesThe Astrophysical Journal
Several filament eruptions with pronounced writhing of the axis of the structure are analyzed. Initially, smooth arches of eruptive filaments are transformed into large-scale helical structures with at least one complete turn due to the development of ...
Boris Filippov
doaj   +1 more source

Magnetically Boosted Water‐Splitting Performance in Metallic Glasses

open access: yesAdvanced Science, EarlyView.
A strategy for boosting water electrolysis efficiency using ultralow magnetic fields on soft‐magnetic MG wires is reported. Ni40Fe40P20 metallic glass exhibits superior overall water‐splitting performance (1.51 V @ 1000 mA cm−2) at 100 Oe, enabled by spin polarization in periodic surface magnetic domains to enhance orbital hybridization and net spin ...
Chaoqun Pei   +9 more
wiley   +1 more source

Closed‐Loop Radiative Cooling Mulch Upcycled From Agricultural Residues for Efficient Soil Heat–Water Stress Mitigation

open access: yesAdvanced Science, EarlyView.
Conventional passive radiative cooling films rely on costly feedstocks and energy‐intensive fabrication, with poor end‐of‐life compatibility in agriculture. To address this challenge, a sustainable radiative cooling mulch (SRCM) is developed from waste maize leaves via spontaneous hydrogen‐bond self‐assembly.
Hao Li   +13 more
wiley   +1 more source

The Alignment of High-resolution Solar Prominence Images Observed by the New Vacuum Solar Telescope

open access: yesThe Astrophysical Journal
High spatial resolution observation of solar prominence is an important observation subject of the New Vacuum Solar Telescope (NVST). While the current level of observation and image reconstruction technologies for solar prominences are advanced, a ...
Yunfang Cai, Yongyuan Xiang, Kaifan Ji
doaj   +1 more source

Dynamic disappearance of prominences and their geoeffectiveness [PDF]

open access: yesGeofísica Internacional, 2008
We study 14 cases of dynamic “disparition brusque” (DBd), the sudden disappearance of quiescent filaments/prominences, during two solar minima: 1985-1986 and 1994.
Z. Mouradian, L. Taliashvili, J. Páez
doaj  

Spectropolarimetry of solar prominences

open access: yes, 2009
A large set of high precision full-Stokes spectropolarimetric observations of prominences in He-D3, Halpha and Hbeta lines has been recorded with the ZIMPOL polarimeter at the Gregory-Coude Telescope in Locarno. The observational technique allows us to obtain measurements free from seeing induced spurious effects.
Ramelli, R.   +4 more
openaire   +2 more sources

Unconstrained Coordination of Pt Single Atoms on Distorted g‐C3N4 Enables Electronic Flexibility and Enhanced Microplastics Photoreforming

open access: yesAdvanced Science, EarlyView.
This study reveals Pt single atoms anchored on distorted graphitic carbon nitride, exhibiting flexible coordination and enhanced interfacial charge transfer. Combined spectroscopy and DFT reveal asymmetric Pt─N environments that promote photoreforming of microplastics into hydrogen, demonstrating a solar‐driven pathway for plastic upcycling with ...
Ting‐Han Lin   +9 more
wiley   +1 more source

Breaking the Trade‐Off of Mechanical Robustness and Energy Storage Capacity in Phase Change Materials Through a Molecular Design Strategy of Hard‐Segment‐Anchored/Side‐Chain‐Storage

open access: yesAdvanced Science, EarlyView.
To decouple mechanical robustness and energy storage capacity in phase change materials (PCMs), a series of polyurethane‐based PCMs bearing crystallizable alkyl side chains are synthesized via a hard‐segment‐anchored/side‐chain‐storage molecular design.
Huizhou Luo   +6 more
wiley   +1 more source

Three-dimensional Evolution of a Solar Filament with Multipoint Observations

open access: yesThe Astrophysical Journal
In this paper, we first devise a geometrical model, featuring a torus-like flux rope based on the shape of the 3D Coronal Rope Ejection model. The global shape of the torus is an ellipse, while the cross sections are circular along the torus.
Qingmin Zhang   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy