Results 11 to 20 of about 235,860 (270)

Cloud point extraction in flow-based systems

open access: yesReviews in Analytical Chemistry, 2016
Cloud point extraction is a green alternative for separation and preconcentration, whose advantages are magnified by coupling with flow analysis. This results in fast extractions, with improved precision and lower reagent consumption and waste generation.
Melchert Wanessa R., Rocha Fábio R.P.
doaj   +2 more sources

Cloud point extraction of Δ9-tetrahydrocannabinol from cannabis resin [PDF]

open access: yesAnalytical and Bioanalytical Chemistry, 2013
A cloud point extraction coupled with high performance liquid chromatography (HPLC/UV) method was developed for the determination of Δ9-tetrahydrocannabinol (THC) in micellar phase.
Ameur, Soumia   +4 more
core   +8 more sources

Cloud point extraction coupled with back extraction: a green methodology in analytical chemistry. [PDF]

open access: yesForensic Sci Res, 2019
Recently, cloud point extraction (CPE) coupled with back extraction (BE) has been suggested as a promising alternative to liquid-liquid extraction. In CPE, non-ionic surfactants in aqueous solutions form micelles and the solution becomes turbid when heated to the cloud point temperature.
Kori S.
europepmc   +5 more sources

Cloud Point Extraction of α-Amino Acids [PDF]

open access: yesSeparation Science and Technology, 2014
Cloud point extraction with a polyethoxylated alcohol (Oxo-C10E4) is used to separate five α-amino acids: alanine, valine, leucine, isoleucine, and phenylalanine (0.75 wt.% in water), and their extraction efficiencies are compared. The variables affecting phase separation and extraction (wt.% surfactant and equilibrium temperature) are optimized using ...
Ghouas, Halima   +6 more
openaire   +4 more sources

Interactive Trunk Extraction from Forest Point Cloud [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
For forest management or monitoring, it is required to constantly measure several parameters of each tree, such as height, diameter at breast height, and trunk volume.
T. Mizoguchi, Y. Kobayashi
doaj   +1 more source

Point Cloud Classification Algorithm Based on the Fusion of the Local Binary Pattern Features and Structural Features of Voxels

open access: yesRemote Sensing, 2021
Point cloud classification is a key technology for point cloud applications and point cloud feature extraction is a key step towards achieving point cloud classification.
Yong Li   +5 more
doaj   +1 more source

A microhardness indentation point cloud segmentation method based on voxel cloud connectivity segmentation

open access: yesMeasurement: Sensors, 2021
In order to accurately extract the effective area of microhardness indentation obtained by laser scanning confocal microscope, the indentation point cloud segmentation method is studied based on over-segmentation using voxel cloud connectivity ...
Shi Wei   +3 more
doaj   +1 more source

Cloud Point Extraction for Electroanalysis: Anodic Stripping Voltammetry of Cadmium. [PDF]

open access: yesAnal Chem, 2015
Cloud point extraction (CPE) is a well-established technique for the preconcentration of hydrophobic species from water without the use of organic solvents. Subsequent analysis is then typically performed via atomic absorption spectroscopy (AAS), UV-vis spectroscopy, or high performance liquid chromatography (HPLC).
Rusinek CA   +3 more
europepmc   +4 more sources

Airborne LiDAR and high resolution satellite data for rapid 3D feature extraction [PDF]

open access: yes, 2014
This work uses the canopy height model (CHM) based workflow for individual tree crown delineation and 3D feature extraction approach (Overwatch Geospatial's proprietary algorithm) for building feature delineation from high-density light detection and ...
Jawak, SD, Luis, AJ, Panditrao, SN
core   +1 more source

Algorithm for Feature Information Extraction from Scattered Point Cloud Data [PDF]

open access: yesJisuanji gongcheng, 2017
To solve the problem of low efficiency and low noise sensitivity in the process of scattered point cloud feature extraction,this paper proposes a double threshold point cloud feature information extraction algorithm.The Principal Component Analysis(PCA ...
SHI Haoliang,WU Lushen,YU Zheqi,WAN Chao
doaj   +1 more source

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