Results 71 to 80 of about 17,147,784 (231)

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

open access: yesAdvanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim   +21 more
wiley   +1 more source

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

open access: yesAdvanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar   +13 more
wiley   +1 more source

A group of women giving a presentation involving vetinary supplies.

open access: yes, 2015
Freak freeze conditions in Peru Practical Action is working with remote indigenous Andean communities to help protect their alpacas and potato varieties to improve livelihoods and biodiversity thereby reducing vulnerability to climate change.
Practical Action Peru
core  

Antea Group Archeologie 2015/32

open access: yes, 2016
Voorliggend onderzoeksrapport betreft de verslaglegging van diverse archeologische onderzoeken die met elkaar gemeen hebben dat ze alle drie gelegen zijn in de kern van Zevenbergen. Als eerste deelgebied wordt hier de haven onderscheiden.
Koopmanschap, Dr. H.J.L.C. (Antea Group)
core   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

open access: yesAdvanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke   +3 more
wiley   +1 more source

In the foreground, a woman smiling at an alpaca. In the background, a group of people.

open access: yes, 2015
Freak freeze conditions in Peru Practical Action is working with remote indigenous Andean communities to help protect their alpacas and potato varieties to improve livelihoods and biodiversity thereby reducing vulnerability to climate change.
Practical Action Peru
core  

Embedded Ferroelectric Nanoclusters Can Drive Polarization Reversal in a Non‐Ferroelectric Polar Film via the Proximity Effect

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric nanoclusters create local internal fields in a normally non‐switchable polar film because of polarization mismatch at their interfaces. That field opposes polarization in the regions with larger polarization and reinforces polarization in the regions with smaller polarization.
Anna N. Morozovska   +5 more
wiley   +1 more source

A large group of natives posing for a photo, with the hills in the background.

open access: yes, 2015
Freak freeze conditions in Peru Practical Action is working with remote indigenous Andean communities to help protect their alpacas and potato varieties to improve livelihoods and biodiversity thereby reducing vulnerability to climate change.
Practical Action Peru
core  

Semiconducting Polymers Post‐Functionalized With Ureido‐Pyrimidinone for Robust Stretchable Transistors

open access: yesAdvanced Functional Materials, EarlyView.
The design of intrinsically robust stretchable semiconducting polymers was achieved through OTBS‐mediated post‐functionalization of PDPP2T side chains with UPy units, generating dual hydrogen‐bonding motifs comprising weaker urethane linkages and strong quadruple UPy interactions along the long alkyl side chain, which is crucial for achieving desirable
Dinda Bazliah   +7 more
wiley   +1 more source

Networks of Actors of Regional Development in Local Action Group Pošumaví [PDF]

open access: yes, 2012
The thesis deals with actors'network problems of regional development in the Local Action Group Pošumaví (LAG). The aim is to assess the functioning of networks within the Local Action Group Pošumaví focusing on the existence of networks, their activity ...
Petříková, Lenka
core  

Home - About - Disclaimer - Privacy