Results 91 to 100 of about 75,364 (297)

Decoupling Size and Electronic Effects in Doped SrTiO3 Photocatalysts Through Surface Area–Normalized CO2 Hydrogenation Rates

Advanced Functional Materials, EarlyView.
Exploring the photocatalytic reverse water–gas shift (RWGS) reaction on doped SrTiO3 nanoparticle films, reveals that normalizing catalytic rates by the catalyst's specific surface area (SSA) disentangled surface area effects from the catalyst's intrinsic material properties.
Dikshita Bhattacharyya, Baliana Shani, Isaac Holmes‐Gentle, Gerardo T Martinez, Martyn McLachlan, Nicola Seriani, Ludmilla Steier   +6 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

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

Biomimetic Iridescent Skin: Robust Prototissues Spontaneously Assembled from Photonic Protocells

Advanced Functional Materials, EarlyView.
Uniform nanoparticles are induced to form arrays (photonic crystals) in the cores of biopolymer capsules, endowing these ‘protocells’ with structural color. These protocells are then assembled into large self‐standing objects, i.e., prototissues, with robust mechanical properties as well as iridescent optical properties.
Medha Rath, Briahnah Streeter, Satyam Srivastava, Jemma Wood, William E. Bentley, Taylor J. Woehl, Srinivasa R. Raghavan   +6 more
wiley   +1 more source

Transportation of water-based slurry in an open furrow, launder or stream [PDF]

, 2004
The transport of large boulders in a furrow from a mining area to a nearby pond was considered. The furrow is filled with a mixture of water and soil particles flowing down to the pond at a very high velocity.
Charpin, J.P.F., de Hill, P., Lombe, M., Myers, T.G.   +3 more
core  

Continuous Avalanche Segregation of Granular Mixtures in Thin Rotating Drums

, 1999
We study segregation of granular mixtures in the continuous avalanche regime (for frequencies above ~ 1 rpm) in thin rotating drums using a continuum theory for surface flows of grains. The theory predicts profiles in agreement with experiments only when
A. Aradian, D. V. Khakhar, D. V. Khakhar, E. Clément, F. Cantelaube, G. Baumann, G. H. Ristow, H. A. Makse, H. A. Makse, Hernán A. Makse, J. A. Drahun, J.-P. Bouchaud, K. M. Hill, M. Nakagawa, M. Nakagawa, O. Pouliquen, O. Zik, P. Cizeau, P.-G. de Gennes, S. B. Savage, S. B. Savage, T. Boutreux, Y. Grasselli   +22 more
core   +1 more source

Numerical investigation of the angle of repose of monosized spheres

Physical Review E, 2001
This paper presents a numerical study of the angle of repose, a most important macroscopic parameter in characterizing granular materials, by means of a modified distinct element method. Emphasis is given to the effect of variables related to factors such as particle characteristics, material properties, and geometrical constraints.
Zhou, Y C, Xu, B H, Yu, Aibing, Zulli, Paul   +3 more
openaire   +4 more sources

Reevaluating the Activity of ZIF‐8 Based FeNCs for Electrochemical Ammonia Production

Advanced Functional Materials, EarlyView.
Though receiving much attention, the field of electrochemical nitrogen reduction reaction (eNRR) to ammonia is marked by doubts about whether this reaction is possible in aqueous media. This work sheds light on this question for iron single‐atom on N‐doped carbon (FeNC) catalysts—a class of well‐known catalysts that is also worth testing for the sister
Caroline Schneider, S. Esmael Balaghi, Niklas Ortlieb, Patrick Elsaesser, Sima Heidari, Christopher S. Allen, Anna Fischer   +6 more
wiley   +1 more source

Analysis of radial segregation of granular mixtures in a rotating drum

, 1999
This paper considers the segregation of a granular mixture in a rotating drum. Extending a recent kinematic model for grain transport on sandpile surfaces to the case of rotating drums, an analysis is presented for radial segregation in the rolling ...
Chakraborty, Saikat, Nott, Prabhu R., Prakash, J. Ravi   +2 more
core   +1 more source

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

Advanced Functional Materials, EarlyView.
A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding, Zhong Zhang, Zeang Zhao, Shengyu Duan, Panding Wang, Xiaogang Guo, Hongshuai Lei, Daining Fang   +7 more
wiley   +1 more source