Results 71 to 80 of about 3,648,135 (249)

Dated radar-stratigraphy between Dome A and South Pole, East Antarctica: old ice potential and ice sheet history

open access: yesJournal of Glaciology
An array of information about the Antarctic ice sheet can be extracted from ice-sheet internal architecture imaged by airborne ice-penetrating radar surveys.
Rebecca J. Sanderson   +6 more
doaj   +1 more source

Shape-from-Shading Derived DEMs from ShadowCam Images in Permanently Shadowed Regions at the Lunar South Pole: A First Look [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The lunar south pole, particularly its permanently shadowed regions (PSRs), has been the focus of future lunar exploration. The solar altitude angle at the lunar south pole is less than ∼ 2°, resulting in the PSRs not being directly illuminated ...
R. Jia, B. Wu, P. Mahanti
doaj   +1 more source

Engineering of Crystal and Domain Structures in Epitaxial Y:HfO2 Thin Films by YSZ Substrate Miscut

open access: yesAdvanced Science, EarlyView.
We investigate how YSZ substrate miscut influences crystal structure and domain formation in epitaxial Y‐doped HfO2 thin films. Using magnetron sputtering, high‐resolution X‐ray diffraction, atomic‐resolution scanning transmission electron microscopy, and first‐principles calculations, we systematically examine the characteristics of thickness‐ and ...
Jun Young Lee   +12 more
wiley   +1 more source

Conquering the specter of Alzheimer's Disease in South Carolina [PDF]

open access: yes, 2009
On June 3, 2008 the General Assembly of South Carolina passed a concurrent resolution to form a Purple Ribbon Task Force to study the current and future impact of Alzheimer’s disease in South Carolina and to assess the resources for and the needs of ...
South Carolina Office of the Lieutenant Governor, Office on Aging
core   +1 more source

Interlayer‐Sliding‐Enabled Multiferroicity and Giant Switchable Anomalous Hall Conductivity in RuO2Zn2F2 Bilayer

open access: yesAdvanced Science, EarlyView.
Interlayer sliding in the RuO2Zn2F2 bilayer induces ferroelectricity and enables reversible valley polarization switching. The electric dipole and valley‐resolved band edges are intimately coupled, revealing sliding ferroelectricity as a powerful mechanism for electrical control of valley degrees of freedom in 2D materials.
Djamel Bezzerga   +3 more
wiley   +1 more source

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

open access: yesAdvanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

Con una brújula en la mano

open access: yesPerseitas, 2020
Viviana Restrepo
doaj   +1 more source

Single‐Atom Intercalation‐Driven Topological Ferroelectric Metal for High‐Performance Hydrogen Evolution Reaction

open access: yesAdvanced Science, EarlyView.
Single‐atom Cu intercalation enables porous AB3 monolayers to integrate ferroelectricity, metallicity, topology, and hydrogen evolution catalysis in one platform. Switchable FE polarization modulates work function and hydrogen adsorption thermodynamics, providing an electrically controllable route to activate basal‐plane HER activity in topological ...
Rongxuan Lu   +4 more
wiley   +1 more source

Millimeter-wave observations of Euclid Deep Field South using the South Pole Telescope

open access: yesAstronomy & Astrophysics
Context. The South Pole Telescope third-generation camera (SPT-3G) has observed over 10 000 square degrees of sky at 95, 150, and 220 GHz (3.3, 2.0, 1.4 mm, respectively) and will significantly overlap the ongoing 14 000 square-degree Euclid Wide Survey.
Archipley M.   +110 more
doaj   +3 more sources

Convergence of technologies, divergence of knowledge

open access: yesGEOmedia
The convergence of meridian lines at the North Pole is a fitting metaphor for the convergence of technologies involved in the first success of the Transglobal Car Expedition, which reached the North Pole after a challenging journey across the frozen ...
Fabrizio Bernardini
doaj  

Home - About - Disclaimer - Privacy