Results 101 to 110 of about 73,121 (297)

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

Advanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado, Enqi Bu, Yaning Han, Carlos López‐Cartes, Mónica Calatayud, Huiyan Pan, Xiaowei Chen   +6 more
wiley   +1 more source

Microscopic Model for Granular Stratification and Segregation

, 1998
We study segregation and stratification of mixtures of grains differing in size, shape and material properties poured in two-dimensional silos using a microscopic lattice model for surface flows of grains. The model incorporates the dissipation of energy
Alonso J. J., Bagnold R. A., Borges J. L., Brown R. L., De Gennes P.-G., De Gennes P.-G., Duran J., Edwards S. F., Grasselli Y., H. A Makse, H. J Herrmann, Herrmann H. J., Koeppe J., Rimmele M., Williamsn J. C., Wolf D. E.   +15 more
core   +2 more sources

Photothermal Macroporous Lignin Cryogels for Off‐Grid, Continuous Atmospheric Water Collection via Interlayer Heat Recovery

Advanced Functional Materials, EarlyView.
Photothermal, macroporous lignin‐based cryogels are engineered to convert sunlight into low‐grade heat. Integrated as stacked beds in a drum‐type device, a thin copper interlayer transfers waste heat between beds, enabling interlayer heat recovery and continuous solar cycling.
Jie Yan, Jiqing Lu, Tian Bai, Lin Li, Zhaoxuan Niu, Yiying Yue, Wanli Cheng, Guangping Han, Orlando J. Rojas   +8 more
wiley   +1 more source

On the relevance of numerical simulations to booming sand

, 2012
We have performed a simulation study of 3D cohesionless granular flows down an inclined chute. We find that the oscillations observed in [L.E. Silbert, Phys. Rev.
Merline Tankeo, N. W. Ashcroft, Patrick Richard, S. Luding, S. McNamara, Sean McNamara   +5 more
core   +2 more sources

A Programmable Semiconductor Containing Active Molecular Photoswitches Located in the Crystal's Volume Phase

Advanced Functional Materials, EarlyView.
A novel approach for the design of functional semiconductors is presented, which utilizes the excellent optoelectronic properties of layered hybrid perovskites and the possibility to introduce a molecular photoswitch as the organic spacer. This concept is successfully demonstrated on a coumarin‐based system with the possibility to change the bandgap ...
Oliver Treske, Yaşar Krysiak, Hans Tornatzky, Markus R. Wagner, Sebastian Polarz   +4 more
wiley   +1 more source

Combined 3D thinning and greedy algorithm to approximate realistic particles with corrected mechanical properties

, 2019
The shape of irregular particles has significant influence on micro- and macro-scopic behavior of granular systems. This paper presents a combined 3D thinning and greedy set-covering algorithm to approximate realistic particles with a clump of ...
Yuan, Fei-Liang
core   +1 more source

Coherent Control of Nitrogen Nuclear Spins via the VB−${\rm V}_B^-$‐Center in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
This study demonstrates coherent control of 15N nuclear spins coupled to VB−${\text{V}}_{\text{B}}^{-}$ centers in isotope‐enriched hexagonal boron nitride. Selective addressing via spin‐state mixing enables Rabi driving, quantum gates, and coherence times exceeding 10 μs$\umu{\rm s}$.
Adalbert Tibiássy, Charlie J. Patrickson, Thomas Poirier, James H. Edgar, Bruno Lopez‐Rodriguez, Viktor Ivády, Isaac J. Luxmoore   +6 more
wiley   +1 more source

Stability of Monomer-Dimer Piles

, 2001
We measure how strong, localized contact adhesion between grains affects the maximum static critical angle, theta_c, of a dry sand pile. By mixing dimer grains, each consisting of two spheres that have been rigidly bonded together, with simple spherical ...
Alex J. Levine, C.J. Olson, D. Ertaş, D.J. Hornbaker, Deniz Ertaş, J.B. Knight, L.E. Silbert, P. Tegzes, R. Albert, T.C. Halsey, T.G. Mason, Thomas C. Halsey, Thomas G. Mason, V. Frette   +13 more
core   +1 more source

Exciton‐Polaritons in Nanoscale Metal‐Organic Frameworks: A Platform for the Reversible Modulation of Strong Light‐Matter Coupling via the Chemical Environment

Advanced Functional Materials, EarlyView.
Strong exciton‐photon coupling is achieved by integrating porphyrin ligand‐based MOF nanoparticles in optical cavities, as evidenced by pronounced polariton branch anticrossing. The porous nature of the resonator enables precise, reversible tuning via vapor pressure, unlocking unprecedented chemical‐environment controlled dynamic polaritonic platforms ...
Beatriz de Sola‐Báez, Laura Caliò, Mauricio E. Calvo, Juan F. Galisteo‐López, Jesús Hernández‐Saz, Miriam Herrera‐Collado, Carolina Carrillo‐Carrión, Hernán Míguez   +7 more
wiley   +1 more source

Modeling and Parameter Calibration of Morchella Seed Based on Discrete Element Method

Applied Sciences
Studies on the discrete element method (DEM) parameters of Morchella seeds are limited due to their high moisture content and weak inter-particle adhesion. However, accurate DEM simulations are crucial for the design of agricultural machinery.
Min Li, Xiaowei He, Guansan Zhu, Jinxiu Liu, Kangcheng Gou, Xufeng Wang   +5 more
doaj   +1 more source