The elemental composition of lubricating soft grease used in rail engines are studied using laser induced breakdown spectroscopy (LIBS) technique.LIBS spectra of fresh, partially used and Vitamin Topical Patches fully used grease samples are recorded using time-gated ICCD spectrometer for verification of compositional degradation of the used grease
Restricted by block size and the block generation rate, cryptocurrencies like Bitcoin were unable to significantly improve their scalability through on-chain approaches.Payment channel networks (PCN) were recognized as one of the most important methods to achieve scalability through off-chain modes.However, traditional PCN utilizing a lockable stru
The relationship between the average annual collapse probability and collapse safety margin of structures is identified to evaluate structural collapse performance quantitatively.A method is then proposed to determine the acceptable collapse margin ratio (CMR) with a certain annual collapse probability.Two methods, namely adopting steel braces and
BackgroundThailand is among the top five countries with effective COVID-19 transmission control.This study examines how news of presence of COVID-19 in Thailand, as well as varying levels of government restriction on movement, affected human mobility in a rural Thai population along the border with Myanmar.MethodsThis study makes use of Weekender B
Patients with rheumatoid arthritis (RA) have an increased risk of infections; therefore, immunization against vaccine-preventable diseases is important.Methotrexate (MTX) impairs the antibody response to pneumococcal conjugate vaccine (PCV) in patients with arthritis, and the underlying mechanism is largely unknown.Here, we investigate the potentia