We investigate the phase matrices of droxtals at wavelengths of 0.66 and 11 microm by using an improved geometrical-optics method. An efficient method is developed to specify the incident rays and the corresponding impinging points on the particle surface necessary to initialize the ray-tracing computations. At the 0.66-microm wavelength, the optical properties of droxtals are different from those of hexagonal ice crystals. At the 11-microm wavelength, the phase functions for droxtals are essentially featureless because of strong absorption within the particles, except for ripple structures that are caused by the phase interference of the diffracted wave.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/ao.43.002490 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A Rare Case of Pneumomediastinum, Pneumoretroperitoneum and Subcutaneous Emphysema Due to Crystal Methamphetamine Abuse.
Eur J Case Rep Intern Med
December 2024
Department of Surgery, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates.
Background: Crystal methamphetamine abuse is a growing concern due to its significant adverse effects on various organ systems.
Case Description: This report presents a rare case of pneumomediastinum, pneumoretroperitoneum and subcutaneous emphysema resulting from crystal methamphetamine abuse. The exact mechanism linking methamphetamine abuse to pneumomediastinum remains ambiguous.
An Alternative Hypothesis on Enhanced Deep Supercooling of Water: Nucleator Inhibition via Bicarbonate Adsorption.
J Phys Chem Lett
January 2025
Université Claude Bernard Lyon 1, INSA Lyon, Université Jean Monnet, CNRS, UMR 5223, Ingénierie des Matériaux Polymères, F-69621 Villeurbanne Cédex, France.
Supercooling allows for retarding water crystallization toward negative Celsius temperatures. Previous findings of CO molecules shifting into bicarbonate species upon freezing, the latter which naturally adsorb on hydrophobic interfaces, are put in perspective here to interpret earlier published data. Since it has been shown that ice nucleation is unlikely on negatively charged surfaces, I propose that bicarbonates adsorb on most solid particles present in water that act as nucleators, thus retarding freezing and enhancing supercooling.
View Article and Find Full Text PDFHow thawing and salting affects the post-cooked quality of frozen beef: New insights into the mechanism of fiber morphology evolution and water migration.
Food Res Int
January 2025
Gembloux Agro-Bio Tech, University of Liège, Gembloux B-5030, Belgium.
To get insight into the thawing and salting in recovery and protection mechanisms on quality in frozen meat after subsequent cooking. The myofiber morphological-water evolution and quality changes in beef during freezing-thawing-cooking and freezing-cooking treatments were investigated. The cooking losses of fresh-cooked, frozen-cooked, and frozen-thawed-cooked samples were 27.
View Article and Find Full Text PDFFabrication of nanocellulose-based high-mechanical and super-hydrophobic xerogels for speedy oil absorbents.
Carbohydr Polym
March 2025
Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China. Electronic address:
Cellulose-based porous materials are promising for various fields and preferred for sustainable development. However, the low mechanical properties and high hydrophilicity of cellulose-based xerogels had a direct influence on their application in oil absorption. To address the challenge, an environmentally friendly and economical method for synthesizing MTMS/C0.
View Article and Find Full Text PDFSuperelastic bamboo cellulose nanofiber based carbon aerogel with layered network microstructure for high sensitivity piezoresistive sensor.
Int J Biol Macromol
January 2025
School of Materials & Chemistry Architecture, Anhui Agricultural University, Anhui Healthy Sleep Home Furnishings Engineering Research Center, Hefei 230036, China. Electronic address:
Carbon aerogels, characterized by their high porosity and superior electrical performance, present significant potential for the development of highly sensitive pressure sensors. However, facile and cost-effective fabrication of biomass-based carbon aerogels that concurrently possess high sensitivity, high elasticity, and excellent fatigue resistance remains a formidable challenge. Herein, a piezoresistive sensor with a layered network microstructure (BCNF-rGO-CS) was successfully fabricated using bamboo nanocellulose fiber (BCNF), chitosan (CS), and graphene oxide (GO) as raw materials.
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!