Results 81 to 90 of about 4,031,555 (287)

Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu   +7 more
wiley   +1 more source

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

open access: yesAdvanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri   +11 more
wiley   +1 more source

Seasonal climate summary for the southern hemisphere (winter 2017): exceptionally warm days for Australia [PDF]

open access: yesJournal of Southern Hemisphere Earth Systems Science, 2019
This is a summary of the southern hemisphere atmospheric circulation patterns and meteorological indices for austral winter 2017; an account of seasonal rainfall and temperature for the Australian region is also provided. The El Niño–Southern Oscillation
Skie Tobin, David J. Martin
doaj  

РЕЖИМ ПРИЗЕМНОЙ АТМОСФЕРНОЙ ЦИРКУЛЯЦИИ В РАЙОНЕ АНТАРКТИЧЕСКОГО ПОЛУОСТРОВА

open access: yesУкраїнський антарктичний журнал, 2018
Целью работы является проведение анализа режима приземного ветра по данным Украинской антарктической станции «Академик Вернадский» и его сопоставление с состоянием атмосферной циркуляции для расширения знаний о региональном климате исследуемого региона ...
V. E. Tymofeyev   +2 more
doaj   +1 more source

Amplified Interannual Variation of the Summer Sea Ice in the Weddell Sea, Antarctic After the Late 1990s

open access: yesGeophysical Research Letters, 2023
The sea‐ice extent (SIE) in the Weddell Sea plays a crucial role in the Antarctic climate system. Many studies have examined its long‐term trend, however whether its year‐to‐year variation has changed remains unclear.
Yuanyuan Guo   +3 more
doaj   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

Southern Annular Mode Influence on Wintertime Ventilation of the Southern Ocean Detected in Atmospheric O2 and CO2 Measurements

open access: yesGeophysical Research Letters, 2020
The Southern Annular Mode (SAM) is the dominant mode of climate variability in the Southern Ocean, but only a few observational studies have linked variability in SAM to changes in ocean circulation.
Cynthia D. Nevison   +6 more
doaj   +1 more source

Contributions of External Forcings to Southern Annular Mode Trends

open access: yesJournal of Climate, 2006
Abstract An observed trend in the Southern Hemisphere annular mode (SAM) during recent decades has involved an intensification of the polar vortex. The source of this trend is a matter of scientific debate with stratospheric ozone losses, greenhouse gas increases, and natural variability all being possible contenders.
Julie M. Arblaster, Gerald A. Meehl
openaire   +1 more source

Acceleration of the Antarctic Circumpolar Current by Wind Stress along the Coast of Antarctica [PDF]

open access: yes, 2013
The influence of wind forcing on variability of the Antarctic Circumpolar Current (ACC) is investigated using a series of eddy-permitting ocean–sea ice models.
Zika, Jan D.   +5 more
core   +1 more source

Ionic Precursors Transformed Into Vinyl Acetate Synthesis Catalyst via Reaction‐Driven Restructuring

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates that a simple physical mixture of Pd and Au ionic precursors, KOAc promoter, and SiO2 support can transform into a highly active vinyl acetate synthesis catalyst through reaction‐driven restructuring. The results highlight reaction‐induced restructuring as an innovative and sustainable catalyst design strategy.
Byeong Jun Cha   +11 more
wiley   +1 more source

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