Pulicaria gnaphalodes has various biological activities and is used as an herbal plant in traditional medicine. The major components of the aqueous extract of this plant are flavonoids, terpenoids and phenolic compounds which could be a good candidate for dyeing of wool fibers. In this study, the aerial part of Pulicaria gnaphalodes plant was extracted and used for the colorat...

background: to evaluate the efficacy of color doppler ultrasound (cdus) in differentiating benign and malignant cervical lymph nodes by detecting differences in blood flow patterns. materials and methods: in this cross‑sectional prospective study, 25 untreated patients with clinical evidence of cervical lymphadenopathy were evaluated. cdus was performed for 80 cervical lymph nodes. the gray sca...

The brand image design of characteristic towns already becomes the way to improve awareness and promote propaganda in many towns. However, during color system construction towns, differences natural geography cultural landscape have resulted universal differentiation but constructions are very similar lack scientific basis or differences, even deviate from original intention town building. Give...

Color-based indexing is an important tool in image data-base retrieval. Compared with other features of the image, color features are less sensitive to noise and background complication. Based on the human visual system’s perception of color information, this paper presents a dependent scalar quantization approach to extract the characteristic colors of an image as color features. The character...