68 research outputs found
On the precipitation hardening of selective laser melted AlSi10Mg
Precipitation hardening of selective laser melted AlSi10Mg was investigated in terms of solution heat treatment and aging duration. The influence on the microstructure and hardness was established, as was the effect on the size and density of Si particles. Although the hardness changes according to the treatment duration, the maximum hardening effect falls short of the hardness of the as-built parts with their characteristic fine microstructure. This is due to the difference in strengthening mechanisms
Bio-analytical Assay Methods used in Therapeutic Drug Monitoring of Antiretroviral Drugs-A Review
Relationship between intracranial pressure and phase-contrast cine MRI-derived measures of cerebrospinal fluid parameters in communicating hydrocephalus
Background: To explore the correlation between intracranial pressure (ICP) and cerebrospinal fluid (CSF)
parameters assessed by phase-contrast cine MRI (PC-MRI).
Methods: Fifteen normal people and 80 subjects with communicating hydrocephalus who underwent PCMRI
examinations from a single center were included in this cross-sectional study. In addition to recording
patient’s age, heart rate, blood pressure and body mass index (BMI), ICP and CSF hemodynamic parameters,
such as flow velocity and aqueduct diameter, were measured for correlation analysis.
Results: The mean ICP and CSF aqueduct diameter in hydrocephalus patients were 151.05 mmH2O and
2.877 mm, respectively, and the maximum (6.938 cm/s) and mean (0.845 cm/s) CSF flow velocities were
significantly higher in these patients compared with the controls (P<0.05). After adjusting for age, heart rate,
blood pressure, and BMI, there was no significant relationship between peak velocity and ICP (P>0.05).
Furthermore, a nonlinear relationship was observed between the ICP and the average velocity of CSF, and
the ICP and aqueduct diameter. The ICP increased with the average velocity above 1.628 cm/s (P≤0.01), and
the aqueduct diameter increased more than 3.6 mm (P<0.001).
Conclusions: This study found significant correlations between ICP and average velocity and aqueduct
diameter. These findings can be useful in assisting clinicians in predicting ICP more effectively, thus
improving patient management
A semi-supervised learning based method: Laplacian support vector machine used in diabetes disease diagnosis
Preparation of Monolithic Epoxy Resin-2-methylimidazole Porous Material for Adsorption/Electrosorption of Cu(II)
On robust approximate optimal solutions for fractional semi-infinite optimization with uncertainty data
Design of Comprehensive Energy System Simulation Platform Under the Background of the Park
Growth of Vertically-Aligned GaN Nanowires by Metal Organic Chemical Vapor Deposition Utilizing Trimethygallium and Tertiarybutylhydrazine
A wireless solution for greenhouse monitoring and control system based on ZigBee technology
Syntheses, structures and photocatalytic degradation of organic dyes for two isostructural copper coordination polymers involving in situ
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