<p><span>Since the precise and accurate determination of optical properties materials is very important for development application technology, investigation biological tissues with tissue-like phantoms an research field in applications lasers medicine. In this study, after directly determining macroscopic agar Zerdine at 635 nm, including absorbance, transmittance, reflectance, ref...

A material's properties and functionalities are determined by its chemical constituents the atomic arrangement in which they crystallize. For recently discovered pigment ${\mathrm{YIn}}_{1\ensuremath{-}x}{\mathrm{Mn}}_{x}{\mathrm{O}}_{3}$, for instance, it had been surmised that bright blue color owes to an unusual, trigonal bipyramidal, oxygen coordination of manganese impurities. Here, we dem...

ABSTRACT. The solid charge transfer (CT) complexes of fluorescein (Flu) with definite acceptors (tetrafluoro para benzoquinone (Fla); 7,7,8,8-tetracyanoquinodimethane (TCNQ); 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) and iodine) were prepared. Several characteristic analytic procedures such as transmission (FT-IR), diffuse reflectance, UV-Vis absorption, cyclic voltammetry used to determine...

Trong nghiên cứu đã thực hiện chiết lá mẫu đơn ở điều kiện thích hợp để lấy dung dịch tối ưu làm tác nhân khử trong quá trình tổng vật liệu bột nano ZnO. Các phương pháp đo đặc tính của ZnO được khảo sát như: XRD, SEM, EDX, phổ UV-Vis rắn và phản xạ. Phương Kubelka-Munk sử dụng xác định độ vùng cấm (Eg) Kết quả cho thấy, các chế tạo dạng pha Wurtzite đều kết tinh thể tấm ngoại trừ với đỏ là 50 ...

Color matching of fabric blends is a key issue for the textile industry, mainly due to the rising need to create high-quality products for the fashion market. The process of mixing together differently colored fibers to match a desired color is usually performed by using some historical recipes, skillfully managed by company colorists. More often than desired, the first attempt in creating a bl...

Extending the absorption range of TiO2 nanofibers to visible light is a great improvement photocatalytic property TiO2. In this study, TiO2/WO3/C/N were prepared by electrospinning using precursors soluble in water then annealing argon. Titanium(IV) bis(ammonium lactato)dihydroxide (TiBALDH) and ammonium metatungstate (AMT) used as precursor for WO3 respectively. Different volume ratios added s...

The application of no destructive techniques in the field Cultural Heritage is becoming fundamental to understanding degradation phenomena. In this study, Transient Absorption (TA) spectroscopy was exploited explain process which causes darkening Red Vermilion, a famous pigment known also as cinnabar. optical properties involved are studied pure HgS and chlorine doped samples, before after expo...

This work is devoted to the preparation of dense Ag+ conductive ceramic solid electrolytes in Ag6PS5I‒Ag7GeS5I system and study their electrical optical properties. Using non-destructive simple method diffuse reflectance spectroscopy, value pseudogap energy Ag6+x(P1-xGex)S5I (x=0, 0.25, 0.5, 0.75, 1.0) solutions was obtained using Kubelka-Munk function with application Tauc's graphic method. As...

The Derivative Spectrophotometry usually improves resolution bands, eliminates the influence of background and provides more defined fingerprints than original spectra, hence enhancing the detectability of minor spectral features. In this work, different madder types were collected and applied for dyeing woolen yarns used in Persian carpet in conventional pre-mordanting and dyeing process with ...