Packing density models could predict the bulk density and void ratio of particulate materials. The original linear packing density model (LPDM) is linearly related to each grain size fraction. However, when using the LPDM model, the predicted packing density and void ratio have large deviation compared with the experimentally measured values. The authors believe this is due to the wedging effect. Therefore, the LPDM model is modified based on wedging effect and converted into a nonlinear model. In this paper, the novel nonlinear model is extended to ternary mixtures. Then, the wedging effect parameter is fitted through the experimental data of binary mixing of quartz sand particles. The obtained wedging effect parameter is correlated to the characteristic diameter ratio between particles. The novel nonlinear model is verified via measured values and cited data from binary and ternary mixes. The results show the calculated values of the novel nonlinear model are closer to the experimental results than that of LPDM.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11836468 | PMC |
| http://dx.doi.org/10.1038/s41598-025-87856-1 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Relationship between climatic factors and the flea index of two plague hosts in Xilingol League, Inner Mongolia Autonomous Region.
Biosaf Health
August 2024
National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Centre for Disease Control and Prevention, WHO Collaborating Centre for Vector Surveillance and Management, Beijing 102206, China.
Climatic factors are closely associated with the occurrence of vector-borne diseases, and they also influence the distribution of vectors. The occurrence of plague is closely related to the population dynamics of fleas and their host animals, as well as climatic conditions. This study focused on Xilingol League, utilizing climatic and flea index data from 2012 to 2021.
View Article and Find Full Text PDFNondestructive estimation of leaf chlorophyll content in banana based on unmanned aerial vehicle hyperspectral images using image feature combination methods.
Front Plant Sci
February 2025
National Engineering Research Center for Satellite Remote Sensing Applications, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China.
Introduction: Nondestructive quantification of leaf chlorophyll content (LCC) of banana and its spatial distribution across growth stages from remotely sensed data provide an effective avenue to diagnose nutritional deficiency and guide management practices. Unmanned aerial vehicle (UAV) hyperspectral imagery can document abundant texture features (TFs) and spectral information in a field experiment due to the high spatial and spectral resolutions. However, the benefits of using the fine spatial resolution accessible from UAV data for estimating LCC for banana have not been adequately quantified.
View Article and Find Full Text PDFAssociation of pyridoxal 5'-phosphate (PLP) with lipid profiles: a population-based cohort study.
Front Nutr
February 2025
Department of Neurology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China.
Objectives: This study aims to explore the correlation between Pyridoxal 5'-Phosphate (PLP) levels and lipid profiles in adult individuals, utilizing data from the National Health and Nutrition Examination Survey (NHANES) database.
Methods: The research included individuals aged 20 years and above, extracted from the NHANES database, covering the period from 2005 to 2010. The primary objective was to scrutinize the relationship between PLP and lipid profiles.
Background: Sarcopenia, characterized by the gradual decline of muscle mass and strength, seriously affects the health and mobility of older adults. The purpose of this study is to investigate the risk factors for sarcopenia, particularly the relationship between chronic diseases and lifestyle factors in individuals aged 60 and over.
Methods: This study used data from the Longitudinal Study on Health and Retirement in China (CHARLS) collected in 2011 and 2015.
Pharmacokinetic effect of disease severity and use of extracorporeal membrane oxygenation in critically ill Asian patients receiving vancomycin.
Front Pharmacol
February 2025
James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH, United States.
Purpose: Vancomycin is an essential antibiotic for the treatment of severe gram-positive bacterial infections, including methicillin-resistant (MRSA). In critically ill patients, particularly children, attaining the appropriate dosage is crucial to avert drug resistance and ensure therapeutic efficacy. This study sought to investigate the pharmacokinetics of vancomycin in critically ill Asian pediatric patients and evaluate the influence of extracorporeal membrane oxygenation (ECMO) and disease severity on vancomycin clearance.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!