Results 71 to 80 of about 455,376 (292)

Coupled Ferroelectric–Photoelectrochemical in Water Reduction Over BiFeO3 Thin Film Heterostructure Modulated by Rare‐Earth Doping

open access: yesAdvanced Functional Materials, EarlyView.
Gd‐doped BFO (BGFO) exhibits a ∼2‐order reduction in leakage current owing to its lowest content of oxygen vacancies. This leads to a ∼2.5‐fold increase in remnant polarization. These improvements in BGFO effectively boost charge separation and transportation, resulting in the greatest incident photon‐to‐current efficiency of 12.9 ± 0.73% and a ∼1.5 ...
Ming‐Wei Chu   +7 more
wiley   +1 more source

A Plethora of the Earth-like Planet: Ramifications of a Fuzzy World

open access: yesФилософия и космология
One primary reason for the formulation of the term Earth-like planet and the search for such planets in the galaxy is because life has arisen in such a world. Thus, this search seems justifiable as it is known here what one is looking for.
Ian von Hegner
doaj   +1 more source

A Termite‐Inspired Alternative to Cement

open access: yesAdvanced Functional Materials, EarlyView.
A termite‐inspired composite of clay, cellulose, and lignin forms a dense fibrous network with concrete‐like strength (32 MPa) and superior elasticity, processed at ambient temperature. Abstract Clay combined with organic materials is used by termites as a strong and durable construction material for their mounds with minimal environmental impact. Here,
Oren Regev   +3 more
wiley   +1 more source

Simulation and analysis of sub-{\mu}as precision astrometric data for planet-finding

open access: yes, 2010
We present a vector formulation of an interferometric observation of a star, including the effects of the barycentric motion of the observatory, the proper motions of the star, and the reflex motions of the star due to orbiting planets. We use this model
Kasdin, N. Jeremy, Savransky, Dmitry
core   +1 more source

Multi‐Ion Doping Controlled CEI Formation in Structurally‐Stable High‐Energy Monoclinic‐Phase NASICON Cathodes for Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
The graphical abstract illustrates the synthesis pathway, morphological feature, and thermodynamic feasibility of entropy‐engineered NASICON cathodes for sodium‐ion batteries. Abstract Overcoming the energy density limitations of sodium‐ion batteries (NIBs) requires innovative strategies to optimize cathode materials.
Sharad Dnyanu Pinjari   +9 more
wiley   +1 more source

REVIEW: Tackling mass media and mass ignorance

open access: yesPacific Journalism Review, 1997
Review of Dateline Earth: As if the planet mattered, by Kunda Dixit. Manila: InterPress. Former Interpress regional editor Kunda Dixit's provacatively titled book Dateline Earth: Journalism As If The Planet Mattered, provides regional journalists with
David Robie
doaj   +1 more source

Mariner II Deep Space Telecommunications [PDF]

open access: yes, 1963
Two major telecommunication activities were in process during the Venus encounter of 1962, the largest, activity involved the two-way communications and tracking of the Mariner spacecraft from the DSIF (Deep Space Instrumentation Facility) stations on ...

core   +1 more source

High‐Entropy Perovskite Nanofibers for Bifunctional Air Electrodes in Reversible Protonic Ceramic Electrochemical Cells

open access: yesAdvanced Functional Materials, EarlyView.
High‐entropy perovskite nanofibers serve as robust and active bifunctional air electrodes in reversible protonic ceramic electrochemical cells. Their compositional complexity stabilizes the lattice, enriches oxygen vacancies, and accelerates surface exchange.
Hyeonggeun Kim   +4 more
wiley   +1 more source

Multiple Twinning in Nacre and Aragonite

open access: yesAdvanced Functional Materials, EarlyView.
Electron backscatter diffraction map of a cluster of geologic aragonite, exhibiting single, double, and triple twins. The whole cluster is approximately 2 cm wide. Colors indicate crystal orientations, so that pixels where the a‐, b‐, and c‐axis is perpendicular to the image plane are green, red, and blue, respectively.
Connor A. Schmidt   +7 more
wiley   +1 more source

Mapping Agriculture on Mars

open access: yesCaliban: French Journal of English Studies, 2019
Le film de science-fiction de Ridley Scott, The Martian/Seul sur Mars (2015) joue sur plusieurs sources d'intérêt pour le spectateur. D'une part le film comporte de brillantes séquences consacrées à la technologie de la NASA telles que la récupération du
Raphaëlle Costa de Beauregard
doaj   +1 more source

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