Results 71 to 80 of about 4,821 (295)

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

open access: yesAdvanced 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   +3 more
wiley   +1 more source

Channel Length Scaling Pattern for Cylindrical Surrounding Double-Gate (CSDG) MOSFET

open access: yesIEEE Access, 2020
The natural length of MOSFETs helps to describe the potential distribution in the Silicon substrate. This natural length varies in different device structures, from a single gate to multi-gate device geometry. To measure the short channel effects degree,
Maduagwu Anthony Uchechukwu   +1 more
doaj   +1 more source

Infinitesimal automorphisms and deformations of parabolic geometries

open access: yesJournal of the European Mathematical Society, 2008
We show that infinitesimal automorphisms and infinitesimal deformations of parabolic geometries can be nicely described in terms of the twisted de Rham sequence associated to a certain linear connection on the adjoint tractor bundle. For regular normal geometries, this description can be related to the underlying geometric structure using the machinery
openaire   +5 more sources

A note on the 𝑀₂₃- and 𝐹𝑖₂₃-minimal parabolic geometries

open access: yes, 1994
Characterizations of the minimal parabolic geometries for the sporadic simple groups M 23 {{\text {M}}_{23}} and Fi
Louise Walker, Peter Rowley
core   +1 more source

Remarks on Grassmannian Symmetric Spaces [PDF]

open access: yes, 2008
summary:The classical concept of affine locally symmetric spaces allows a generalization for various geometric structures on a smooth manifold. We remind the notion of symmetry for parabolic geometries and we summarize the known facts for $|1|$-graded ...
Zalabová, Lenka, Žádník, Vojtěch
core   +1 more source

Large‐Area 2D Metasurface‐Based Triboelectric E‐Skin Arrays: Contact & Proximity Tactile Mapping with Broadband Acoustic Readouts

open access: yesAdvanced Materials, EarlyView.
Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief   +12 more
wiley   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

open access: yesAdvanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández   +15 more
wiley   +1 more source

Workbench for a Parabolic Trough Solar Collector with a Tracking System

open access: yesThe Scientific World Journal, 2022
Solar energy found abundantly in nature is considered a renewable energy source. It is also of great interest as an option for energy generation and CO2 emissions reduction.
Luciano A. Fiamonzini   +2 more
doaj   +1 more source

Parabolic geometries determined by filtrations of the tangent bundle [PDF]

open access: yes, 2005
summary:Summary: Let ${\germ g}$ be a real semisimple $|k|$-graded Lie algebra such that the Lie algebra cohomology group $H^1({\germ g}_-,{\germ g})$ is contained in negative homogeneous degrees. We show that if we choose $G= \operatorname{Aut}({\germ g}
Sagerschnig, Katja
core  

On uniqueness of submaximally symmetric parabolic geometries [PDF]

open access: yes
Among (regular, normal) parabolic geometries of type (G,P), there is a locally unique maximally symmetric structure and it has symmetry dimension dim(G).
The, Dennis
core   +1 more source

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