In this study, terahertz time-domain spectroscopy (THz-TDS) was proposed to identify coffee of three different varieties and three different roasting degrees of one variety.Principal component analysis (PCA) was applied to extract features from frequency-domain spectral data, and the extracted features were used for classification prediction throug
Amino acids (AAs) have broad nutritional, therapeutic, and medical significance and thus are one of the most common active ingredients of nutritional supplements.Analytical strategies for determining AAs are high-priced and often limited to methods that require modification of AA polarity or incorporation of an aromatic moiety.The aim of this work
A number of unpublished documents relating to the former parish of San Miguel de Sagra and San Gil, located very close to the main entrance of the Alcazar of Madrid, and its subsequent demolition and relocation in 1548 Sunglasses with a new building on the southeast side of the Sacroiliac Support Palace, gives insight into an urban project long mat
In order to study the influence of the axial compression ratio and steel ratio on the Lap Timing and Race Gates shear-carrying capacity of steel-truss-reinforced beam-column joints, five shear failure interior joint specimens were designed.The effect of different coaxial pressure ratios (0.1, 0.2, and 0.3) and steel contents on the strain, ultimate