A new solution is proposed to decompose a curve into arcs and straight line segments in O(n log n) time. It is a combined solution based on arc detection [1] and dominant point detection [2] to strengthen the quality of the segmentation results. Experimental results show the fastness of the proposed method.

In this study an attempt was made to investigate bio pretreatment and chemical process observe the effects in terms of absorbency, bursting strength, wash rubbing fastness, water, energy consumption. Four samples (S1, S2, S3 S4) were prepared by different processes then dyed with two reactive dyes. When compared chemically fabrics, biopretreated fabrics demonstrated improved abrasion resistance...

In the present study, five naphthalene-based azo dyes were obtained using classical azo coupling reactions. The structure of the dyes was characterized and confirmed by the UV-vis, FT-IR, 1H NMR and 13C NMR analyses. The solvatochromic behavior of the dyes was studied in a set of 10 solvents with different polarity and considerable results were obtained. The dyes were applied as disperse dyes t...

Castor oil (CAO)/poly (N-vinyl-2-pyrrolidone) (PVP) hybrid was synthesized at different reaction conditions including PVP/CAO weight ratio, temperature, and time. The results indicated that the optimum to synthesis is reacting of PVP having a molecular 40,000 Da with CAO ratio 30% temperature 150°C for 60 min. characterized via FTIR. Emulsification such in water white stable emulsion. TEM analy...

C-Phycocyanin (PC) and B-phycoerythrin (PE) are light-harvesting water-soluble phycobiliproteins from microalgae that belong mainly to the cyanobaceria rhodhophytes families. Different methods have been developed for PC PE extraction purification microalgae, offer a high potential their use as additives in sectors such food cosmetics. However, main limitations of using these dyes sensitivity en...

BACKGROUND Histoplasmosis (HP) is diagnosed by visualizing intracellular microorganisms in biopsy and/or culture. Periodic-acid Schiff (PAS) and Gomori methenamine silver (GMS) staining methods are routinely used for identification. The acid-fast property of Histoplasma was identified decades ago, but acid-fast staining has not been practiced in current surgical pathology. Awareness of the acid...

Drawing upon reflectance behavior of woodland colors involving dark brown in the UV-Vis-IR bands, two colored pigments were used to print cotton/polyester Co/PET goods. Inorganic nanoparticles of TiO2, ZnO and AL2O3 were also loaded onto the printing formulation. The reflectance profile of treated samples was studied using Jasco V-670 reflectance spectrophotometer. SEM analysis of printed fabri...

Dyeing properties of different fabric species were investigated using leaf extract Juglans regia L. For this purpose, the cotton and wool fabrics dyed brown napthaquinon colorant extracted from walnut leaves by pre-mordanting, meta-mordanting post-mordanting methods in presence copper sulfate (CuSO4.5H2O), ferrous (FeSO4.7H2O) alum (AIK(SO4)2.12H2O) at medium pH. Color codes determined with Pan...