introduction: raman spectroscopy, that is a spectroscopic technique based on inelastic scattering of monochromatic light, can provide valuable information about molecular vibrations, so using this technique we can study molecular changes in a sample. material and methods: in this research, 153 raman spectra obtained from normal and dried skin samples. baseline and electrical noise were eliminat...

In this paper, we develop a procedure for selecting a supplier. Suppliers are characterized by their lead time, price and quality (random yield). Each purchased item is acceptable with a given probability and independent of the others. We assume the demands are deterministic with no set-up cost and backordering is allowed. For each supplier, an optimal ordering policy is developed. We prove the...

Due to the industrial processing of grapes, large amounts by-products are produced. The main varieties pomace, which is comprised skins, seeds and any other solid remaining after pressing process sediments. It necessary implement new effective ways minimize these residues. This problem relevant for all wine-producing countries, including Georgia. well-known fact that pomace an important source ...