This paper presents an original approach to the structural design and analysis of a 3D-printed thermoplastic-core propeller blade for high-altitude UAVs.A macroscale linear isotropic numerical model for the behavior of 3D-printed parts (in Tough PLA, as well as ABS) is fed with values from tensile and bending testing on standard specimens (ISO 527-
Building confidence in COVID-19 vaccine rollout: the importance of responsible presentation and follow-on investigation of Adverse Events Following Immunization (AEFI) reports for elderly patients
Given the extreme need for vaccines to flatten the curve of COVID-19 cases and deaths worldwide, many researchers, some governments and donor agencies have initiated a good number of vaccine development projects.COVID-19 vaccines have been approved for use in mass population immunization programmes in a much shorter time than is usual for new pharm
Development of a Software Tool for Seismic Probabilistic Safety Assessment Quantification with a Sufficiently Large Number of Bins for Enhanced Accuracy
Quantification in seismic probabilistic safety assessment (PSA) includes the convolution of hazard and fragility curves.Because it is difficult to find the closed-form integration for the convolution of two curves, numerical methods are widely used in practice.In practical applications, the number of ground motion level bins in numerical methods is
Enhancement of Jahani (Firouzabad) salt dome lithological units, using principal components analysis
In this study, principal components analysis was used to investigate lithological characteristics of Jahani salt dome, Firouzabad.The spectral curves of rocks in the study area show that the evaporate rocks have the highest reflectance at specified wavelengths.The highest reflection Collections has been seen in gypsum and white salt, while minimal