Results 11 to 20 of about 3,658 (261)

Fundamental study on the effect of grain size distribution on angle of repose [PDF]

E3S Web of Conferences
In this study, the authors developed a new sidewall velocity-controlled cylindrical angle of repose measurement apparatus that can capture images of a sand heap continuously using two orthogonal cameras in order to reduce the cost of photography.
Kajiyama Shintaro, Nakata Yukio, Nakase Hitoshi   +2 more
doaj   +1 more source

Calibration and verification of DEM parameters of wet-sticky feed raw materials

Scientific Reports, 2023
In order to improve the accuracy of the parameters needed in the discrete element method (DEM) simulation process of wet-sticky feed raw materials, the JKR contact model in DEM was used to calibrate and verify the physical parameters of wet-sticky feed ...
Fei Peng, Limei Zhang, Zhiqiang Li, Jianming Chen   +3 more
doaj   +1 more source

Calibration and Test of Contact Parameters between Chopped Cotton Stalks Using Response Surface Methodology

Agriculture, 2022
The accuracy of the material parameter settings directly affects the reliability of the results of the discrete element method simulation. It is necessary to calibrate the relevant parameters to obtain accurate discrete element simulation results when ...
Bingcheng Zhang, Xuegeng Chen, Rongqing Liang, Xinzhong Wang, Hewei Meng, Za Kan   +5 more
doaj   +1 more source

Calibration and analysis of discrete element simulation parameters of Chinese cabbage seeds.

PLoS ONE, 2022
ObjectiveTo improve the accuracy of parameters used in discrete element simulation test of Chinese cabbage seeds harvesting process.MethodsFirstly, the key physical parameters of Chinese cabbage seeds were measured. According to the results, the discrete
Shengsheng Wang, Lu Mengqing, Xingyi Liu, Jiangtao Ji, Pan Chen   +4 more
doaj   +1 more source

On-line moisture content estimation of saw dust via machine vision

Open Engineering, 2020
The effect of moisture content and feasibility of its estimation in granular material was investigated via machine vision. The test scheme consisted of saw dust samples derived from Norway spruce with moisture content adjusted to three distinct levels ...
Valta Art, Ruusunen Mika, Leiviskä Kauko   +2 more
doaj   +1 more source

Effect of Gravity on Repose Angle and Contact Forces of Particulate Pile Composed of Non-monodispersed Particles

International Journal of Aerospace Engineering, 2019
Evaluating the repose angle of granular materials under different kinds of gravitational conditions is essential for in situ resource exploration on surfaces of other Earth-like planets in the next decades.
H. Chen, Y. X. Chen, Q. S. Wei, Y. S. Shi   +3 more
doaj   +1 more source

ANALYSIS OF STATIC ANGLE OF REPOSE WITH RESPECT TO POWDER MATERIAL PROPERTIES

Acta Polytechnica, 2020
This paper investigates the Angle of Repose (AoR) of powder materials with respect to their morphological and rheological properties. Glass beads, sand, flour and semolina of different particle sizes were used as the experimental materials.
Oliver Macho, Karin Demková, Ľudmila Gabrišová, Matúš Čierny, Jitka Mužíková, Paulína Galbavá, Žofia Nižnanská, Jaroslav Blaško, Peter Peciar, Roman Fekete, Marián Peciar   +10 more
doaj   +1 more source

Intratracheal Administration of Chloroquine-Loaded Niosomes Minimize Systemic Drug Exposure

Pharmaceutics, 2021
Pulmonary administration provides a useful alternative to oral and invasive routes of administration while enhancing and prolonging the accumulation of drugs into the lungs and reducing systemic drug exposure. In this study, chloroquine, as a model drug,
Hesham A. Saafan, Kamilia M. Ibrahim, Yasmeena Thabet, Sara M. Elbeltagy, Rana A. Eissa, Ashraf H. Ghaleb, Fathy Ibrahim, Mahmoud Elsabahy, Noura G. Eissa   +8 more
doaj   +1 more source

Discrete Element Simulation Modeling Method and Parameters Calibration of Sugarcane Leaves

Agronomy, 2022
Objective The construction method of the discrete element model and the setting of simulation parameters in the strip- and blade-shaped sugarcane leaf are unclear.
Jiahui Ren, Tao Wu, Wangyujie Mo, Ke Li, Ping Hu, Fengying Xu, Qingting Liu   +6 more
doaj   +1 more source

Experimental Study of the Angle of Repose of Coral Sands

Journal of Marine Science and Engineering
The angle of repose is a fundamental parameter for assessing the stability of coral reefs. However, predictive models for this angle are currently lacking.
Zhen Yao, Jie Chen, Changbo Jiang, Zhiyuan Wu, Bin Deng, Yuannan Long, Hongtao Zou, Jinwei Zhang, Runze Bai   +8 more
doaj   +1 more source