Results 101 to 110 of about 81,279 (338)

Numerical Study of Particle Morphology Effect on the Angle of Repose for Coarse Assemblies Using DEM

Advances in Materials Science and Engineering, 2019
The morphologies of coarse particles are usually irregular and play a dominant role in the mechanical behaviors of the particle assemblies. This paper quantitatively studies the effect of particle shape on the angle of repose, which is an important ...
Jing Chen, Rui Gao, Yangzepeng Liu
semanticscholar   +1 more source

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

Parameter Calibration Method for Discrete Element Simulation of Soil–Wheat Crop Residues in Saline–Alkali Coastal Land

Agriculture
After wheat harvesting in coastal saline–alkali land, when the straw is returned to the field and the soil is rotary tilled, the lack of reliable discrete element simulation parameter models restricts the optimization and improvement of special tillage ...
Jie Liu, Tong Lu, Shuai Zheng, Yu Tian, Miaomiao Han, Muhao Tai, Xiaoning He, Hongxiu Li, Dongwei Wang, Zhuang Zhao   +9 more
doaj   +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

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  

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

The Angle of Repose of Powder in Liquid

Journal of the Society of Materials Science, Japan, 1970
The angles of repose of spherical glass powder and α-alumina were measured in various aqueous solutions in order to examine the effect of interparticle force on the angle of repose. NaCl, Na-pirophosphate, Na-polyphosphate and Na-polyacrylate were used for this purpose.
Misao NISHINO, Masafumi ARAKAWA
openaire   +2 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

From the stress response function (back) to the sandpile `dip'

, 2005
We relate the pressure `dip' observed at the bottom of a sandpile prepared by successive avalanches to the stress profile obtained on sheared granular layers in response to a localized vertical overload.
Atman, A. P. F., Behringer, R. P., Brunet, P., Claudin, P., Clément, E., Geng, J., Reydellet, G.   +6 more
core   +2 more sources