Results 61 to 70 of about 20,278 (263)

Effects of convex surface roughness on heterogeneous ice nucleation

open access: yesAIP Advances
In this work, we investigate the effects of convex surface roughness on heterogeneous ice nucleation through molecular dynamics simulations. Graphene surfaces with sawtooth structures are considered, and the ice nucleation rates are calculated by varying
Yixiang Wang   +5 more
doaj   +1 more source

Laboratory studies of immersion and deposition mode ice nucleation of ozone aged mineral dust particles [PDF]

open access: yesAtmospheric Chemistry and Physics, 2013
Ice nucleation in the atmosphere is central to the understanding the microphysical properties of mixed-phase and cirrus clouds. Ambient conditions such as temperature (T) and relative humidity (RH), as well as aerosol properties such as chemical ...
Z. A. Kanji   +4 more
doaj   +1 more source

Ice nucleation by DNA origami

open access: yesNanoscale
Addition of DNA tiles lowers the temperature of ice nucleation.
Alsalhi, SA   +3 more
openaire   +2 more sources

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

open access: yesAdvanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández   +15 more
wiley   +1 more source

Analysis of the effect of water activity on ice formation using a new thermodynamic framework [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
In this work a new thermodynamic framework is developed and used to investigate the effect of water activity on the formation of ice within supercooled droplets.
D. Barahona
doaj   +1 more source

Molecular aspects of microbial ice nucleation [PDF]

open access: yesMolecular Microbiology, 1991
SummaryCertain organisms nucleate the crystallization of ice. This requires a small volume of water to be induced, probably by lattice‐matching with a solid template, to form an‘ice embryo’—a region sharing at least some of the characteristics of macroscopic ice.
G, Warren, P, Wolber
openaire   +2 more sources

Conductive Hydrogels for Exogenous Sensing and Cell Fate Control

open access: yesAdvanced Materials, EarlyView.
We engineer electrically conductive hydrogels by combining sulfated glycosaminoglycans with semiconducting polymers. These hydrogels bind bioactive proteins, including growth factors, whose release or retention can be modulated by low‐voltage stimulation. The hydrogels are also integrated as 3D channels in organic electrochemical transistors as part of
Teuku Fawzul Akbar   +15 more
wiley   +1 more source

Electrolyte‐Induced Interfacial/Bulk Dual Regulation Enables Negligible Capacity Decay in Li‐Rich Cathodes

open access: yesAdvanced Materials, EarlyView.
This work report a n electrolyte‑induced interfacial/bulk dual regulation strategy that enables negligible capacity decay in li‑rich cathodes. ABSTRACT Lithium‐rich manganese‐based oxides (LRMO) suffer from rapid capacity decay, mainly driven by interfacial instability and bulk structural degradation associated with Jahn‐Teller (J‐T) distortion in Mn3+‐
Tianqi Yang   +17 more
wiley   +1 more source

A Comparative Study on Early‐Stage Icing Evaluation Techniques for Passive Ice Protection Systems

open access: yesAdvanced Materials Interfaces, EarlyView.
This study addresses the lack of standardized methodologies for evaluating the early‐stage icing performance of passive ice protection systems. A unified experimental protocol is proposed and applied to representative hydrophilic and hydrophobic surfaces under controlled conditions.
Lorenzo Facco   +4 more
wiley   +1 more source

Water‐Stable Paper‐Based Laser‐Induced Graphene With Asymmetric Water Adhesion and Wettability

open access: yesAdvanced Materials Interfaces, EarlyView.
Paper‐based electronics are attractive for sustainable and disposable devices, but often fail in wet environments. By introducing Parafilm into cellulose paper combined with laser conversion, two graphene surfaces with different water interactions are created.
Lingyin Meng   +3 more
wiley   +1 more source

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