Results 31 to 40 of about 23,260,852 (262)

Study on Spectral Interference in the Determination of Vanadium by ICP-OES

open access: yes, 2020
Vanadium is an important scarce resource and strategic metal, and often coexists with a variety of complex metals in the form of secondary mineral phases in nature.
Zhang Yi   +7 more
core   +1 more source

LncRNAs and Rheumatoid Arthritis: From Identifying Mechanisms to Clinical Investigation

open access: yesFrontiers in Immunology, 2022
Rheumatoid arthritis (RA) is a systemic chronic autoinflammatory disease, and the synovial hyperplasia, pannus formation, articular cartilage damage and bone matrix destruction caused by immune system abnormalities are the main features of RA. The use of
Wentao Huang   +11 more
doaj   +1 more source

Study on Rapid Recognition of Marine Microplastics Based on Raman Spectroscopy

open access: yes, 2021
Due to a large amount of use and discharge of plastics, these plastics are broken into microplastics by the environmental effect and gather in the ocean in large quantities, leading to the accumulation of a large number of microplastics in the ocean ...
Wang Qing   +3 more
core   +1 more source

Accurate Quantitative Analysis of Valuable Components in Zinc Leaching Residue Based on XRF and RBF Neural Network

open access: yes, 2022
Zinc smelting leaching slag is the solid smelting waste produced by the hydro-zinc smelting process, accounting for more than 75% of the total output of zinc smelting solid waste.
Li Qiang   +6 more
core   +1 more source

Detection of Mitral Valve Diseases by Bicoherence Analysis of Heart Sound Signals

open access: yes, 2017
The analysis of 10 normal and 51 mitral valve pathology making a total of 61 heart sound signals that were obtained with Littmann 4100 Digital Stethoscope were conducted in this study.
AKGÜN, ÖMER
core   +2 more sources

Prospects of microwave-induced thermoacoustic imaging

open access: yesJournal of Electronic Science and Technology, 2023
Microwave-induced thermoacoustic imaging (MTAI) has advantages including the large imaging depth, high imaging resolution, high imaging contrast, and fast imaging speed.
Xing-Hua Wang, Huan Qin
doaj   +1 more source

Comparison of Spectral and Molecular Analyses for Classification of Long Term Stored Wheat Samples [PDF]

open access: yes, 2016
This study aimed to determine whether NIR spectroscopy and protein band analysis can differentiate the grain samples of 15 wheat genotypes stored for different periods: Group I (91 weeks), Group II (143 weeks), Group III (194 weeks), and Group IV (246 ...
Egesel, Cem Omer, Kahriman, Fatih
core   +1 more source

Abundance and Spectral Characteristics of Molecular Weight Separated Dissolved Organic Matter Released From Biochar at Different Pyrolysis Temperatures

open access: yes, 2022
Biochar (BC) returned to soil will release amounts of dissolved organic matters (DOM), which can change soil-DOM's content and chemical properties and then have important impacts on their environmental behaviors.
Cao Tao   +6 more
core   +1 more source

xkl: A legacy software for detailed acoustic analysis of speech made modern

open access: yesSoftwareX, 2023
The determination of the fundamental properties of speech relies on a fine and precise estimation of temporal and spectral properties of speech segments.
Luca De Nardis   +3 more
doaj   +1 more source

Mineralogy and Spectra Study on Dougeng Stone from Shoushan, Fujian Province

open access: yes, 2020
This paper studied main characteristics of Dougeng stone, by means of several Spectra methods like X-ray powder diffraction (XRD) , Fourier transform infrared spectroscopy (FTIR) and Raman spectra, as well as mineralogical methods like hydrostatic ...
Xi Jia-xin, Chen Tao
core   +1 more source

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