4 research outputs found
Development of bio-based cutting fluid from roselle oil with titanium dioxide nano additive for cnc machine turning operation
The research work titled Development of Bio-Based Cutting Fluid from Roselle Oil with Titanium Dioxide Nano Additive for
CNC Machine Turning Operation was carried out in in line with the global best practices of ensuring sustainable production
during Computer Aided Manufacturing. Nano additive were collected in three different samples base oil 0 wt %, 0.5wt% and
1wt% of TiO2. Viscosity test was carried out using a viscometer with base oil, 0.5wt% and 1.0wt% having 3.19, 2.86 and
2.75m²/s respectively. Furthermore, the identification of unknown materials and confirmation of the sample materials were
analyzed using FTIR spectroscopy with the materials being identified as carboxyl, hydroxyl, alkane, amide carboxyl and amide
acid. Turning operation was carried out on a Harrison center machine with a mild steel work piece at constant depth of cut
(1.5mm), constant feed rate (0.3mm) and cutting speeds at 80, 160 and 240rev/min. tool wear, surface finish, chip thickness
and chip formation were analyzed. With an increase in Nano fluid concentration of 0.5wt% and 0.1wt% relative to base oil, a
decrease in kinematic viscosity has been observed. In comparison to base oil and 0.5wt% TiO2, Nano fluid equal to 1.0wt%
TiO2 shows enhanced results. When titanium dioxide was added instead of base oil, tool wear and surface finish are enhanced
more. The percentage increase in nanoparticles, along with the observed changes in chip thickness, shape, and formation, point
to the importance of nanoparticles at the tool/workpiece interface
Assessment of Biodiesel Potential from Jatropha Oil using Lubricity Strength, Gas Chromatograph-Mass Spectroscopy (GC-MS) and Fourier Transform Infrared Spectrophotometer (FTIR) Analyses
Assessment of Biodiesel Potential from Jatropha Oil using Lubricity Strength, Gas Chromatograph-Mass Spectroscopy (GC-MS) and Fourier Transform Infrared Spectrophotometer (FTIR) Analyses
Traumatic Enucleation and Bilateral Colles’ Fracture in a 70 Year Old Farmer
Purpose: To report a case of traumatic enucleation and Colles’ fracture in a 70-year-old male farmer following a fall from a height.
Design: A case report.
Findings: Enucleated right eye and bilateral Colles’ fracture.
Practical implications: The attending health care personnel should do a complete assessment of a patient with a history of fall from a height to avoid missing important bodily injuries. Fall from height is a cause of avoidable blindness.
Originality: Rare original case of traumatic enucleation after a fall