Results 101 to 110 of about 75,511 (297)

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

open access: yesApplied 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   +5 more
doaj   +1 more source

Incipient failure in sandpile models

open access: yes, 1998
Elastoplastic and constitutive equation theories are two approaches based on very different assumptions for creating a continuum theory for the stress distributions in a static sandpile.
Nagel, S. R., Narayan, O.
core   +1 more source

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

open access: yesAdvanced 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   +8 more
wiley   +1 more source

Calibration of Snow Particle Contact Parameters for Simulation Analysis of Membrane Structure Snow Removal Robot

open access: yesApplied Sciences
To enhance the accuracy of discrete element method (DEM) simulation for the snow removal process performed by autonomous robots on membrane structures, this study calibrated the key contact parameters of snow particles used in the simulation.
Jiangtao Dong   +3 more
doaj   +1 more source

Wet Granular Materials

open access: yes, 2006
Most studies on granular physics have focused on dry granular media, with no liquids between the grains. However, in geology and many real world applications (e.g., food processing, pharmaceuticals, ceramics, civil engineering, constructions, and many ...
Albert I   +93 more
core   +3 more sources

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

open access: yesAdvanced 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   +4 more
wiley   +1 more source

Effect of the Lifting Velocity and Container Shape on Angle of Repose of Iron Ore Particles

open access: yesAdvances in Materials Science and Engineering, 2017
To investigate the impact of lifting velocity and container shape on angle of repose, the fixed-base cylinder method was performed using three types of container shape. The container shape was lifted a series of lifting velocities.
Tongqing Li   +4 more
doaj   +1 more source

Preservation of roasted and ground coffee during storage Part 1: Moisture content and repose angle

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2016
The present study evaluates the influence of the level of roasting and the grind size on the moisture content and repose angle of coffee during storage.
Paulo C. Corrêa   +5 more
doaj   +1 more source

The Angle of Repose of Powder in Liquid

open access: yesJournal 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

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

open access: yesAdvanced 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   +6 more
wiley   +1 more source

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