Results 71 to 80 of about 152,541 (294)

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

open access: yesAdvanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu   +2 more
wiley   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

Cold-induced changes in the protein ubiquitin. [PDF]

open access: yesPLoS ONE, 2012
Conformational changes are essential for protein-protein and protein-ligand recognition. Here we probed changes in the structure of the protein ubiquitin at low temperatures in supercooled water using NMR spectroscopy.
Min-Kyu Cho   +4 more
doaj   +1 more source

Geometric Mechanics of Curved Crease Origami

open access: yes, 2012
Folding a sheet of paper along a curve can lead to structures seen in decorative art and utilitarian packing boxes. Here we present a theory for the simplest such structure: an annular circular strip that is folded along a central circular curve to form ...
A. E. H. Love   +13 more
core   +1 more source

Mixed mode oscillations in a conceptual climate model [PDF]

open access: yes, 2014
Much work has been done on relaxation oscillations and other simple oscillators in conceptual climate models. However, the oscillatory patterns in climate data are often more complicated than what can be described by such mechanisms.
Jones, Chris K. R. T.   +3 more
core   +3 more sources

Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges

open access: yesAdvanced Functional Materials, EarlyView.
Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky   +3 more
wiley   +1 more source

[Letter], 1865, Sept. 23, C. Whiting, Jr. [to] Alan Cameron [PDF]

open access: yes
A military correspondence sent by C. Whiting (Jr.) ordering hospital lists to be turned over to Surgeon (Benoni) Carpenter as instructed. One entry: dated September 23, 1865 Handwritten; 1 folded sheet (4 p.); 25 x 40 cm.

core   +1 more source

Folded textured sheets

open access: yes, 2010
By introducing a 'local' texture to thin-walled sheets, the 'global' mechanical properties of the sheets can be favourably modified. In this paper we explore the intriguing mechanical properties of Folded Textured Sheets, by way of two examples.
SCHENK, Mark, GUEST, Simon D.
openaire   +2 more sources

Simulating Thin Sheets: Buckling, Wrinkling, Folding and Growth

open access: yesJournal of Physics: Conference Series, 2014
Numerical simulations of thin sheets undergoing large deformations are computationally challenging. Depending on the scenario, they may spontaneously buckle, wrinkle, fold, or crumple. Nature's thin tissues often experience significant anisotropic growth, which can act as the driving force for such instabilities.
Roman Vetter   +3 more
openaire   +3 more sources

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