In this research we described the effective Hamiltonian theory and applied this theory to the calculation of current-current (Q1,2) and QCD penguin (Q3,…,6) c quark decay rates. We calculated the decay rates of semileptonic and hadronic of charm quark in the effective Hamiltonian theory. We investigated the decay rates of D meson decays according to Spectator Quark Model (SQM) for the calculati...

A combination of structural and pigmentary components is responsible for many of the colour displays of animals. Despite the ubiquity of this type of coloration, neither the relative contribution of structures and pigments to variation in such colour displays nor the relative effects of extrinsic factors on the structural and pigment-based components of such colour has been determined. Understa...

An object–based layered codec is submitted for formal testing of object scalability and improved coding efficiency at very low bit rates using class–A sequences. The codec consists of 3 layers. In layer 1, only colour parameters are transmitted. In layer 2, additionally motion parameters are transmitted. In layer 3, additionally to colour and motion parameters shape parameters are transmitted. ...

The aim of this study was to develop a computerized method for the identification and description of colour areas in melanocytic lesion images based on an approach mimicking the human perception of colours. A colour palette comprising six colour groups (black, dark brown, light brown, blue-grey, red and white) was created by selecting single colour components within melanocytic lesion images ac...

Colour parameters of European beech were measured using CIELab system. 103 logs from 87 trees in 9 sites were cut into boards to study the variations of wood colour parameters. Both site and tree effect on colour were observed. Patterns of red heartwood occurrence were defined. When excepting red heartwood there was still a highly significant effect of site and tree; differences remained after ...

Varying proportions of binary mixtures of aqueous extracts of jackfruit wood (JFW) with other natural dyes like manjistha (MJ), red sandalwood (RSW), marigold (MG), sappan wood (SW) and babool (BL) were used by the scientists at Institute of Jute Technology, Kolkata and Department of Chemical Engineering, Jadavpur University, Kolkata, India to dye bleached cotton fabric premordanted with 20% my...

Karamucki T., Gardzielewska J., Rybarczyk A., Jakubowska M., Natalczyk-Szymkowska W. (2011): Usefulness of selected methods of colour change measurement for pork quality assessment. Czech J. Food Sci., 29: 212–218. A few selected methods of the meat colour change determination were compared with regard to their usefulness in the assessment of the quality of minced pork. The study was carried ou...

The shear strength parameters—the cohesion and the internal friction angle—are important parameters in calculating of soil, which is a mechanical property reflecting resistance soil to shearing. This article embeds angle results sandy loam measured using direct test relying on drawing Mohr–Coulomb line. Beside parameters, this contains colour tested at different moisture contents, spectrophotom...

An object–based layered coder for the transmission of image sequences at very low bit rates between 8 and 64 kbit/s is presented. In layer 1, only colour parameters are transmitted, whereas in layer 2 additionally motion parameters are transmitted in order to apply motion compensated prediction. In layer 3, in addition to colour and motion parameters, shape parameters of arbitrarily shaped movi...