Search results for "Average diameter"
showing 7 items of 7 documents
Profiling Suspensions in Natural Water by a Simplified Dynamic Light Scattering Procedure and Sedimentation
2015
Abstract A coherent light scattering experiment was carried out. The samples were aqueous natural water suspensions picked from the same river. While sedimentation occurred in the samples, they were subjected to a dynamic light scattering (DLS) experiment and the time series was recorded at certain time intervals. For each recording, a program written for this purpose, performing at least square minimisation, computed the average diameter of the particles in suspension. The variation of the average diameter in time indicates the dominant type of suspensions in water.
Inverse problem for tripotential measures in the study of buried cavities
1996
This paper presents a solution to the inverse electrical problem for the interpretation of apparent resistivity anomalies due to empty buried cavities of quasi-spherical shape when tripotential measures are carried out. The anomalies of the apparent resistivities ra,rb andrg,and the composed resistivitiesrmand rt were previously calculated for a sufficient class of spherical models of resistivity anomalies. Then, for the whole class of models, some functionals of spatial distribution of the apparent and composed resistivity were identified and analyzed. They represent the average characteristics of the anomalies and, depending in a simple way on the fundamental parameters of the sources of …
Lengths, girths, and diameters of children’s fingers from 3 to 10 years of age
2010
We obtained data on the lengths, girths, and diameters of the fingers of children from 3 to 10 years of age. A total of 160 children (78 girls, 82 boys) were examined in a cross-sectional investigation. The length of each finger of the right hand of every child was measured, as were the girths of the proximal, middle, and distal phalanges, and of the proximal and distal interphalangeal joint. The average length of the thumb was 49 (35-65) mm. The index and ring fingers both averaged 69 (index, 50-88; ring, 42-96) mm in length, while the middle and little fingers averaged 72 (57-100) and 56 (40-74) mm, respectively. Average diameter, calculated from the girth measurement, was 16 (11-22) mm f…
Using Dynamic Light Scattering for Monitoring the Size of the Suspended Particles in Wastewater
2019
Abstract A coherent light scattering experiment on wastewater samples extracted from several stages of water processing within a wastewater processing plant was carried out. The samples were allowed to sediment while they were the subject of a Dynamic Light Scattering (DLS) measurement. The recorded time series were processed using an Artificial Neural Network based DLS procedure to produce the average diameter of the particles in suspension. The method, using a single physical procedure for monitoring the variation of the average diameter in time, indicates the dominant type of suspensions in water.
Nano-structured myelin: new nanovesicles for targeted delivery to white matter and microglia, from brain-to-brain
2021
Neurodegenerative diseases affect millions of people worldwide and the presence of various physiological barriers limits the accessibility to the brain and reduces the efficacy of various therapies. Moreover, new carriers having targeting properties to specific brain regions and cells are needed in order to improve therapies for the brain disorder treatment. In this study, for the first time, Myelin nanoVesicles (hereafter defined MyVes) from brain-extracted myelin were produced. The MyVes have an average diameter of 100–150 nm, negative zeta potential, spheroidal morphology, and contain lipids and the key proteins of the myelin sheath. Furthermore, they exhibit good cytocompatibility. The…
61Ni Mössbauer study of the surface hyperfine magnetic field in nickel
1988
61Ni Mossbauer measurements have been performed at 4.2 K on spherical Ni particles with an average diameter of 100 and 30 A, covered with a protective layer of SiO. Their spectra contain a surface component with a significantly reduced hyperfine magnetic field as compared with the field in the bulk. This result confirms recent theoretical predictions.
Cryobiopsy as a New Tool for Complications Diagnosis During Follow-up After Lung Transplantation: Single Institution Case Series
2020
ABSTRACT Background The first description of performing a new diagnostic procedure, cryobiopsy, in lung transplant recipients in Poland. Methods Three cases of patients after lung transplantation were analyzed in context of the procedure of cryobiopsy, which was performed in a hybrid room with a bronchoscopic video track and C-arm radiograph. Patients were subjected to complete anesthesia and intubated. Two or three sections with an average diameter of 5 mm were collected. Results The sections were large and fully diagnostic. In all 3 described cases they brought a decisive element into diagnosis. Conclusions Cryobiopsy is a useful tool in the differential diagnosis of lesions and complicat…