Results 131 to 140 of about 71,298 (304)

Spin‐Dependent Generation of Surface‐Bound Radicals Toward Selective and Long‐Lasting Water Purification

open access: yesAdvanced Functional Materials, EarlyView.
This study develops a novel atomic engineering strategy to fine‐tune the spin state of α‐Fe2O3 catalysts toward a medium‐spin state, thereby modulating peroxymonosulfate activation and selectively yielding surface‐bound radicals. Compared with free radicals, surface‐bound radicals exhibit moderated oxidation potential, extended lifespan, surface ...
Shuyu Wang   +7 more
wiley   +1 more source

La clau dels temps : de la gestió del temps quotidià a un nou urbanisme del temps [PDF]

open access: yes, 2008
Des d'experiències franceses, es planteja la necessitat que el temps es converteixi en un element central de les polítiques que afecten els usos i les pràctiques de la ciutat.
Gwiazdzinski, Luc
core   +2 more sources

Tissue Engineered Human Elastic Cartilage From Primary Auricular Chondrocytes for Ear Reconstruction

open access: yesAdvanced Functional Materials, EarlyView.
Despite over three decades of research, no tissue‐engineered solution for auricular reconstruction in microtia patients has reached clinical translation. The key challenge lies in generating functional elastic cartilage ex vivo. Here, we integrate synergistic cell‐biomaterial strategies to engineer auricular grafts with mechanical and histological ...
Philipp Fisch   +13 more
wiley   +1 more source

L’expiació amorosa i la conversió en home salvatge de l’esforçat cavaller Partinobles [PDF]

open access: yes, 2015
Des de la Bíblia, passant per l’antiguitat clàssica, l’edat mitjana i l’edat moderna, la figura del salvatge ha estat una constant de la literatura i ha provocat el rebuig i l’atracció alhora de l’home de tots els temps.
Sequero García, María Ángeles
core  

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

open access: yesAdvanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner   +14 more
wiley   +1 more source

Fabrication of Pyridinic Nitrogen‐Functionalized Carbon Cloth for High‐Performance Iron‐Chromium Flow Batteries

open access: yesAdvanced Functional Materials, EarlyView.
The carbon cloth electrode with targeted pyridinic nitrogen doping, achieved via urea pyrolysis, effectively modulates the adsorption of Cr(II) species and enhances electron transfer, leading to significantly improved kinetics of the Cr(II)/Cr(III) reaction. The material demonstrates a high discharge capacity of 689.3 mAh and an energy efficiency of 72.
Jinfeng Yi   +9 more
wiley   +1 more source

Bulgarian version of TEMPS-A preliminary announcement [PDF]

open access: yesAnnals of General Psychiatry, 2008
Akiskal Hagop   +5 more
openaire   +2 more sources

Dispensing Volumetric Additive Manufacturing

open access: yesAdvanced Functional Materials, EarlyView.
Dispensing volumetric additive manufacturing (DVAM) prints 3D structures inside a photocurable resin droplet suspended from the tip of a glass pipette, enabling sequential printing without resin vats or manual part removal. Real‐time droplet profiling and ray‐tracing‐based correction compensate for optical distortion at the curved resin‐air interface ...
Hongryung Jeon   +5 more
wiley   +1 more source

Presentació

open access: yesAsparkía, 2013
Una vegada més el temps ha fet ombra a les intencions, una vegada més ens ha atrapat en el seu remolí i ens ha impedit complir els terminis... El temps -també els diners, els pressupostos, les ajudes...-.
Alicia Gil Gómez
doaj  

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