35 research outputs found

    Egg Quality Characteristics in Autochthonous Genotypes of Chickens Raised on Macedonian Rural Farms

    Get PDF
    Egg quality characteristics of three different autochthonous chicken phenotypes (phenotype having ashy-silvery-brown leghorn laced plumage color, phenotype having light brown spangled plumage color and phenotype having black or blue plumage color) were examined. These types of chickens are mainly raised as backyard rural area flocks in the villages of R. Macedonia. The data were collected through first systematic approaches in phenotypical identification and characterisation of these autochthonous genotypes realized recently. Three small flocks of old hens collected from different villages and placed in control pens were established. No data about number of eggs/hen/year is available for the established flocks. Further investigations are needed to record productive (number of egg produced) and reproductive data. The plan was that additional, yearly production records be collected from the flock produced as offspring from established flock of old hens collected from different villages and placed in control pens. Set of 90 eggs was collected (30 eggs from each plumage phenotype) and basic egg quality parameters measured. Egg size (weight) was 50.71g for brown laced plumage phenotype, 60.48g for blue plumage phenotype and 52.6 g for light brown spangled plumage phenotype. Egg shell strength was 3965, 3628 and 3924 g/cm2 for brown laced, blue and brown spangled plumage phenotype, respectively. Light brown spangled plumage phenotype had the highest value of yolk color (10.29) and Hough Units (76.63) compared to brown laced (10.08 and 75.27) and blue (9.09 and 71.65) plumage phenotype

    Generalized Chaotic Synchronizationin Coupled Ginzburg-Landau Equations

    Full text link
    Generalized synchronization is analyzed in unidirectionally coupled oscillatory systems exhibiting spatiotemporal chaotic behavior described by Ginzburg-Landau equations. Several types of coupling betweenthe systems are analyzed. The largest spatial Lyapunov exponent is proposed as a new characteristic of the state of a distributed system, and its calculation is described for a distributed oscillatory system. Partial generalized synchronization is introduced as a new type of chaotic synchronization in spatially nonuniform distributed systems. The physical mechanisms responsible for the onset of generalized chaotic synchronization in spatially distributed oscillatory systems are elucidated. It is shown that the onset of generalized chaotic synchronization is described by a modified Ginzburg-Landau equation with additional dissipation irrespective of the type of coupling. The effect of noise on the onset of a generalized synchronization regime in coupled distributed systems is analyzed.Comment: 12 page

    Inorganic Chemical Chracterization of the Bitola, Oslomej, and Berovo Coals and their Waste Products from Burning, FYROM

    Get PDF
    The coals are the main and dominant energy resource in FYROM. The mineral and inorganic chemical composition of two types of samples have been studied from the Oslomej, Bitola and Berovo lignite coals and their products generated from the Oslomej and Bitola thermo-electric power stations (TEPSs). They include low-grade coals (coals for TEPS) and solid wastes (flyashesandbottomashes).Themineralsidentifiedinthelignitesincludequartz,kaolinite,illite,K-feldspar,plagioclase,amphibole, smectite, pyrite, and others. The phase composition of waste products is represented by glass, quartz, albite, magnetite, gypsum. The concentration and behaviour of 43 elements have been also tested. All of the ash-forming elements (Si, Al, Mg, K, Ca, Fe, C, P, S, Ti, and Mn) are present in varying concentrations in the lignites and waste products. The trace elements enriched in coals (Mo, Sc, Pb, Cr, Y, Zr, Ti, Zn, and V) and waste products (Nb, Mn, Sb, Hg, Y, and Cd) normally have low over Clarke values. The data obtained is topical and pioneer for the former Yugoslav Republic of Macedonia

    Characterization of coal from the Mariovo basin, Macedonia – Insights from organic geochemical and sulphur isotopic data.

    Get PDF
    Data detailed petrographic study of coal from the Mariovo basin in Macedonia suggests circulation of fluids mobilizing metals from different origins (basement, volcanism ?) during burial. Sulphur isotopic data on organic matter and pyrite indicate dominantly marine-derive fluids and processus of bacterial reduction of sulphates

    Fluid inclusions at the plavica Au-Ag-Cu telescoped porphyry–epithermal system, former yugoslavian Republic of Macedonia (FYROM)

    No full text
    The Plavica Au-Ag-Cu porphyry and high sulfidation (HS) epithermal deposit is located at the Kratovo–Zlatovo volcanic field in Eastern Former Yugoslavian Republic of Macedonia. In this study, new fluid inclusions data provide additional evidence of the presence of a porphyry style mineralization which is associated with an overlain HS epithermal deposit. The Oligocene–Miocene magmatic rocks have a calc–alkaline to high-K calc–alkaline affinity and consist of sub-volcanic intrusions and volcanic rocks. Previous studies distinguished four alteration types: (a) Sericitic, (b) advanced argillic, (c) silicification, and (d) propylitic alteration. Fluid inclusions showed an early magmatic brine in porphyry style veins with high salinity (33–57 wt% NaCl equiv.), which coexists with a vapor rich fluid with lower salinity (14–20 wt% NaCl equiv.), at temperatures 380–500 °C, under boiling conditions. At shallower depths, the fluid inclusions demonstrate various HS–epithermal deposits which were formed by moderate to low salinity (3–14 wt% NaCl equiv.) hydrothermal fluids at lower temperatures from 200 to 300 °C. © 2019 by the authors. Licensee MDPI, Basel, Switzerland

    Bifurcations and chaos in the turbo decoding algorithm

    No full text
    Abstract. The turbo decoding algorithm is a high-dimensional dynamical system parameterized by a large number of parameters (for a practical realization the turbo decoding algorithm has more than 10 3 variables and is parameterized by more than 10 3 parameters). In this chapter we treat the turbo decoding algorithm as a dynamical system parameterized by a single parameter that closely approximates the signal-to-noise ratio (SNR). A whole range of phenomena known to occur in nonlinear systems, like the existence of multiple fixed points, oscillatory behavior, bifurcations, chaos and transient chaos are found in the turbo-decoding algorithm. We develop a simple technique to control transient chaos in turbo decoding algorithm and improve the performance of the standard turbo codes.

    On the Asymptotic Convergence Properties of Turbo Codes

    No full text
    In this paper we present an analysis of the convergence properties of turbo codes at high signal-to-noise ratio (SNR). We introduce a simple nonlinear model based on the weight enumerator of the constituent codes to describe the iterates of the bit-error-rate (BER). Then, we characterize the dynamics of the decoder on the binary-input Gaussian channel in terms of fixed points along with the associated stability analysis. 1

    Characterization of coal from the Mariovo basin, Macedonia - Insights from organic geochemical and sulphur isotopic data

    No full text
    ABSTRACT: data detailed petrographic study of coal from the Mariovo basin in Macedonia suggests circulation of fluids mobilizing metals from different origins (basement, volcanism ?) during burial. Sulphur isotopic data on organic matter and pyrite indicate dominantly marine-derive fluids and processus of bacterial reduction of sulphates
    corecore