12 research outputs found

    Dielectric properties of marsh vegetation

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    The present work is devoted to the measurement of the dielectric properties of mosses and lichens in the frequency range from 500 MHz to 18 GHz. Subjects of this research were three species of march vegetation – moss (Dicranum polysetum Michx), groundcedar (Diphasiastrum complanatum (L.) Holub) and lichen (Cladonia stellaris). Samples of vegetation were collected in Tomsk region, Western Siberia, Russia. Complex dielectric permittivity was measured in coaxial section by Agilent Technologies vector network analyzer E8363B. Green samples was measured for some moisture contents from 100% to 3–5 % during a natural drying. The measurements were performed at room temperature, which remained within 21 ÷ 23 ° C. The frequency dependence of the dielectric constant for the three species of marsh vegetation differ markedly. Different parts of the complex permittivity dependency on moisture were fitted by line for all frequency points. Two break point were observed corresponding to the transition of water in the vegetation in various phase states. The complex permittivity spectra of water in the vegetation allow determining the most likely corresponding dielectric model of water in the vegetation by the method of hypothesis testing. It is the Debye’s model. Parameters of Debye’s model were obtained by numerical methods for all of three states of water. This enables to calculate the dielectric constant of water at any frequency range from 500 MHz to 18 GHz and to find the parameters of the dielectric model of the vegetation

    New Russian Economic Accounting for the New Economy

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    When discussing the relevance of transformation of the Russian accounting or the digital economy the authors usually explore Autonomous these two areas. Examination of their relationship helps to explain the modern trends in the development of both theory and practice of accounting, Examination of their relationship helps to explain the modern trends in the development of both theory and practice of accounting. This explains the novelty of the subject and the relevance of the study. The aim of the study was substantiation of author’s vision of the specific directions of reforming of accounting. The emergence in Russia of a new economic accounting and relevant of science, “integrated accounting” are made possible by modern digital technology and tools of data analysis, forecasting. Methodology or a system of knowledge about the organization of accounting activities, in addition to scientific approaches, use development trends of the economic theory of the XX century, which explain the emergence of the digital economy and the expansion of the boundaries of Accounting and Russian accounting. Results. Broad use of integrated accounting and its acceptance for a basis of information support of enterprise management necessary in order to meet the new needs of stakeholders, to increase the competitiveness of enterprises and the country in a digital economy. The distribution integrated record will contribute to overcoming the country’s backwardness in the field of accounting and will accelerate the development of the digital economy. Outlook. The development of integrated accounting will not be too expensive for capital investments but will require improvement in the field of training. the author proposes a number of specific changes in education and training in the field of integrated accounting

    Reactive Immunization Suppresses Advanced Glycation and Mitigates Diabetic Nephropathy

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    Agents that inhibit glycation end products by reducing the carbonyl load from glycation and glycoxidation are an emerging pharmacologic approach to treat complications of diabetes. We previously demonstrated that antibodies generated to the glycoprotein keyhole limpet hemocyanin (KLH) can cross-link with reactive carbonyl residues on protein conjugates. Here, we immunized streptozotocin-induced diabetic rats with KLH to assess the capacity of the elicited antibodies to intercept carbonyl residues on glycated proteins and to mitigate glycation-related pathology. Compared with diabetic rats immunized with adjuvant alone, KLH-immunized diabetic rats had decreased levels of glycated peptides in sera and demonstrated a reduction in albuminuria, proteinuria, deposition of glycation end products in the kidney, and histologic damage. In vitro, low molecular weight glycated peptides from rat serum reacted with anti-KLH antibodies at a faster rate than normal IgG and selectively modified the λ chains. The reaction products contained peptide sequences from type I collagen α chain, albumin, and LDL receptor–related protein. These adduction reactions were inhibited by free KLH and by reduction of glycated peptides with borohydride. In summary, these results suggest that inherent reactivity of Ig light chains provides a natural mechanism for the removal of cytotoxic glycation products. This reactivity can be augmented by glycoprotein-specific reactive immunization, a potential biopharmaceutical approach to glycation-related pathology

    Dielectric properties of marsh vegetation

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    The present work is devoted to the measurement of the dielectric properties of mosses and lichens in the frequency range from 500 MHz to 18 GHz. Subjects of this research were three species of march vegetation – moss (Dicranum polysetum Michx), groundcedar (Diphasiastrum complanatum (L.) Holub) and lichen (Cladonia stellaris). Samples of vegetation were collected in Tomsk region, Western Siberia, Russia. Complex dielectric permittivity was measured in coaxial section by Agilent Technologies vector network analyzer E8363B. Green samples was measured for some moisture contents from 100% to 3–5 % during a natural drying. The measurements were performed at room temperature, which remained within 21 ÷ 23 ° C. The frequency dependence of the dielectric constant for the three species of marsh vegetation differ markedly. Different parts of the complex permittivity dependency on moisture were fitted by line for all frequency points. Two break point were observed corresponding to the transition of water in the vegetation in various phase states. The complex permittivity spectra of water in the vegetation allow determining the most likely corresponding dielectric model of water in the vegetation by the method of hypothesis testing. It is the Debye’s model. Parameters of Debye’s model were obtained by numerical methods for all of three states of water. This enables to calculate the dielectric constant of water at any frequency range from 500 MHz to 18 GHz and to find the parameters of the dielectric model of the vegetation

    Dielectric properties of marsh vegetation in a frequency range of 0.1-18 GHz under variation of temperature and moisture

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    Dielectric characteristics of some species of marsh vegetation: lichen Cladonia stellaris (Opiz) Pouzar, moss Sphagnum, and a representative of Bryidae mosses – Dicranum polysetum are studied in the frequency range from 100 MHz to 18 GHz. At a frequency of 1.41 GHz, the influence of temperature in the range from –12 to +20°С on the behavior of dielectric characteristics of mosses, lichens, and peat is studied. The dependences of the dielectric characteristics of vegetation on the volumetric wetness are established

    Dielectric properties of marsh vegetation in a frequency range of 0.1-18 GHz under variation of temperature and moisture

    No full text
    Dielectric characteristics of some species of marsh vegetation: lichen Cladonia stellaris (Opiz) Pouzar, moss Sphagnum, and a representative of Bryidae mosses – Dicranum polysetum are studied in the frequency range from 100 MHz to 18 GHz. At a frequency of 1.41 GHz, the influence of temperature in the range from –12 to +20°С on the behavior of dielectric characteristics of mosses, lichens, and peat is studied. The dependences of the dielectric characteristics of vegetation on the volumetric wetness are established
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