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Marcin Marciniak - One of the best experts on this subject based on the ideXlab platform.

  • Electromagnetic energy flow in confined regions of evanescent waves: wavelength-scale analysis by the method of single Expression
    Optical and Quantum Electronics, 2019
    Co-Authors: H. Baghdasaryan, T. Knyazyan, A.v. Daryan, T. T. Hovhannisyan, T. Baghdasaryan, Marcin Marciniak
    Abstract:

    An Alternative Expression for the Poynting vector for monitoring electromagnetic energy flow in confined regions of evanescent waves is presented. This Expression is an intrinsic integrable function of the boundary problem solution in the method of single Expression (MSE). The peculiarity of the MSE is the fact that it does not exploit the superposition principle by representing solutions of the Helmholtz equation as a sum of counter propagating waves in the medium, but rather considers resulting wave with certain amplitude and phase by solving special set of the MSE equations with backward calculation approach. This permits to have a universal Expression for the Poynting vector appropriate both for media of a positive product of permittivity and permeability and of a negative product of these values that is relevant to the region of evanescent waves. For the boundary problem solution carried out numerically by the MSE it is possible to observe distributions of not only electric and magnetic field amplitudes, but also the Poynting vector in any confined media including regions of evanescent waves. The presented Alternative Expression for the Poynting vector in the MSE is in complete agreement with the traditional representation of the Poynting vector for the medium where it is defined.

  • Monitoring of Electromagnetic Energy Flow in a Confined Region of Evanescent Waves by an Alternative Expression for the Poynting Vector
    2019 13th European Conference on Antennas and Propagation (EuCAP), 2019
    Co-Authors: H. Baghdasaryan, T. Knyazyan, Tatevik Hovhannisyan, A.v. Daryan, Marcin Marciniak
    Abstract:

    For monitoring of energy flow an Alternative Expression for the Poynting vector is presented. This Expression is an intrinsic integrable function at the boundary problem solution by the method of single Expression (MSE). The MSE does not exploit the superposition principle, i.e. does not represent solutions of Helmholtz equation as the sum of counter - propagating waves. This permits to have an Alternative Expression for the Poynting vector applicable both in media of a positive product of permittivity and permeability and of a negative product that relevant to the region of evanescent waves as well. At the boundary problem solution by the MSE (that is carried out numerically) it is possible to observe spatial distributions in confined media not only for electric and magnetic field amplitudes, but also the Poynting vector. The Alternative Expression for the Poynting vector in the MSE is in complete agreement with the traditional representation of the Poynting vector.

  • An Alternative Expression of The Poynting Vector Operating in a Confined Region of Evanescent Waves: Natural Function in The Method of Single Expression
    2018
    Co-Authors: H. Baghdasaryan, T. Knyazyan, Tatevik Hovhannisyan, A.v. Daryan, Marcin Marciniak
    Abstract:

    An Alternative Expression of the Poynting vector is presented. This Expression is an intrinsic function at the electromagnetic wave description in the method of single Expression (MSE). The MSE does not represent solutions of the Helmholtz equation as a sum of counter-propagating waves that permits to operate with an Alternative Expression for the Poynting vector. At the boundary problems solution carried out numerically by the MSE spatial distributions of electric and magnetic field amplitudes and the Poynting vector are obtained. An Alternative Expression of the Poynting vector is applicable both in confined media of a positive product of permittivity and permeability and of a negative product, that is relevant to the region of evanescent waves. The Expression of the Poynting vector in the MSE is in complete agreement with the traditional representation of the Poynting vector.

  • General Expression of the Poynting Vector Appropriate for Evanescent Wave Region: Intrinsic Function in the Method of Single Expression
    2018 20th International Conference on Transparent Optical Networks (ICTON), 2018
    Co-Authors: H. Baghdasaryan, T. Knyazyan, Tatevik Hovhannisyan, Marcin Marciniak
    Abstract:

    An Alternative Expression for the Poynting vector valid for region of evanescent waves is presented. This Expression is the intrinsic function in the method of single Expression (MSE). The MSE does not exploit superposition principle, i.e. does not represent solutions of Helmholtz's equation as the sum of counter-propagating waves, which permits to have Alternative Expression for the Poynting vector valid both in media with a positive product of permittivity and permeability, and at a negative product (relevant to evanescent waves) as well. The boundary problem solution by the MSE permits to observe spatial distributions in a confined medium not only for electric and magnetic field amplitudes, but also for the Poynting vector. The Alternative Expression for the Poynting vector is in perfect agreement with the traditional representation for propagating waves.

  • Universal Expression for the Poynting vector applicable for evanescent waves: inherent output from the method of single Expression
    2018 12th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials), 2018
    Co-Authors: H. Baghdasaryan, T. Knyazyan, Tatevik Hovhannisyan, Marcin Marciniak
    Abstract:

    An Alternative Expression for the Poynting vector valid for evanescent waves is presented. This Expression is the natural variable in the method of single Expression (MSE). The MSE does not exploit superposition principle, i.e. not representing solutions of Helmholtz's equation as the sum of counter-propagating waves, which permits to have Alternative Expression for the Poynting vector valid both in media with a positive product of permittivity and permeability, and at a negative product (relevant to evanescent waves) as well. The boundary problem solution by the MSE permits to observe spatial distributions in a confined medium not only for electric and magnetic field amplitudes, but also for the Poynting vector. The Alternative Expression for the Poynting vector is in perfect agreement with the traditional representation for propagating waves.

Norio Niikawa - One of the best experts on this subject based on the ideXlab platform.

  • Isolation of two isoforms of the PAX3 gene transcripts and their tissue-specific Alternative Expression in human adult tissues.
    Human genetics, 1994
    Co-Authors: Kazuhiro Tsukamoto, Yusuke Nakamura, Norio Niikawa
    Abstract:

    We have isolated two isoforms of cDNA clones from the human PAX3 gene, a candidate gene responsible for Waardenburg syndrome type I (WSI) as well as a gene associated with development of alveolar rhabdomyosarcoma. The gene product is considered to be one of transcription factors, and the two cDNA clones isolated, termed PAX3A and PAX3B, were generated by Alternative splicing. The transcripts coded 215 and 206 amino acids, respectively, and shared 196 amino acids at the NH2 end. The amino acid sequence in the common region (residues 1-196) showed a 100% identity with that of exons 1-4 of the mouse Pax-3 gene. However, both of the PAX3 cDNAs lacked the DNA sequence corresponding to the paired-type homeodomain of the mouse Pax-3 gene. Analysis of gene Expression in human adult tissues by reverse transcriptase polymerase chain reaction (RT-PCR) revealed tissue-specific Expression of this gene. PAX3B was expressed in most of the tissues examined, but the PAX3A type of transcript was detected only in the cerebellum, esophagus, and skeletal muscle.

Makoto Fujie - One of the best experts on this subject based on the ideXlab platform.

  • Alternative Expression of a chitosanase gene produces two different proteins in cells infected with Chlorella virus CVK2.
    Virology, 1997
    Co-Authors: Takashi Yamada, Shingo Hiramatsu, Puttaporn Songsri, Makoto Fujie
    Abstract:

    Abstract Several Chlorella virus CVK2 proteins had chitosanase and/or chitinase activities. A gene coding for an ORF of 328 amino acids (aa) with a predicted molecular mass of 36,769 Da was cloned from the viral genome. The predicted amino acid sequence of an N′-portion (174 aa) of this gene product (vChta-1) showed 22 to 25% identity with various bacterial chitosanases. A glutathione S -transferase (GST)–vChta-1 fusion protein had strong chitosanase activity. Western blot analysis with antisera raised against the vChta-1 protein identified two proteins of 37 and 65 kDa in virus-infected Chlorella cells beginning at 240 min postinfection and continuing until cell lysis. The larger protein was packaged in the virion, while the smaller one remained in the cell lysate. Both chitosanase proteins were produced from the single gene, vChta-1, by a mechanism of Alternative gene Expression.

Mohammad Sadegh Abrishamian - One of the best experts on this subject based on the ideXlab platform.

  • Alternative Expression for the Phase Velocity of Electromagnetic Homogeneous Plane Waves
    IEEE Transactions on Microwave Theory and Techniques, 2011
    Co-Authors: Omid Zandi, Zahra Atlasbaf, Mohammad Sadegh Abrishamian
    Abstract:

    We have established a different method to analyze various electromagnetic media. An analytical investigation has been carried out into the relation between the phase velocity, momentum density vector (MDV), and Poynting vector of plane waves in linear, homogeneous, and time-invariant media. Based on it, we have derived a novel dispersion relation for homogeneous plane waves and found an interesting Expression for the phase velocity in terms of the fields' intensities and densities. We have been also able to determine the relative orientation of the wave vector with respect to the direction of the Poynting vector. In addition, the group velocity has been expressed in terms of the Poynting vector and MDV. We have applied all the results to several media and obtained valuable outcomes. It is shown that the orthogonality of phase velocity is not feasible for homogeneous plane waves.

R. Hsu - One of the best experts on this subject based on the ideXlab platform.

  • An Alternative Expression for the variance factors in using Iterated Almost Unbiased Estimation
    Journal of Geodesy, 1999
    Co-Authors: R. Hsu
    Abstract:

    An Alternative Expression has been derived for the variance factors when estimating weights according to the Iterated Almost Unbiased Estimation (IAUE) technique. A variance factor can be approximately estimated by finding the ratio of the group redundancy numbers at any two successive iterations. The numerical example of the first-order leveling network of Taiwan indicates: that stabilization of the redundancy number of an observation occurs as the variance factor associated with it converges to unity; that variance factors tend to approach unity for individual groups with large redundancy; and that for those variance factors which fail to converge to unity, the redundancy numbers decrease monotonically as the iteration proceeds.

  • APPROXIMATE ESTIMATIONS OF VARIANCE COMPONENTS IN AN ADJUSTMENT COMPUTATION
    Journal of the Chinese Institute of Engineers, 1999
    Co-Authors: R. Hsu
    Abstract:

    Abstract An Alternative Expression has been derived for the variance factors when estimating weights according to the Iterated Almost Unbiased Estimation (IAUE) technique. The variance factors are expressed in terms of the redundancy numbers of the observed quantities. A variance factor can also be approximately estimated by finding the ratio of the redundancy numbers at any two successive interations. The numerical example of the first‐order leveling network of Taiwan indicates: that stabilization of the redundancy number of an observation occurs as the variance factor associated with it converges to unity; and that for those variance factors which fail to converge, the redundancy numbers of the corresponding observations tend to decrease monotonically as the iteration proceeds.