Search Results - "Gevorgyan, H."

Modeling Flexible Manipulators without Inverting Their Mass Matrices by Gevorgyan, H. A.

“…In modern scientific literature, much attention is paid to optimal modeling of flexible dynamic systems. The importance of such studies is dictated by the…”
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PROBLEM ON OPTIMIZING THE MOTION OF AN ELASTIC TRACKING MANIPULATOR by Gevorgyan, H. A.

“…— Relevant problems on modeling mechanisms with elastic links imply the improvement of existing formalisms and algorithms for dynamic analysis, synthesis, and…”
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Rearrangment–Cyclization of Dialkyl(4-hydroxybut-2-ynyl)(3-phenylprop-2-enyl)ammonium Bromides in the Presence of Aqueous Alkali by Gevorgyan, H. R., Chukhajian, E. O.

“…Dialkyl(4-hydroxybut-2-ynyl)(3-phenylprop-2-enyl)ammonium bromides in the presence of catalytic amounts of aqueous alkali do not undergo intramolecular…”
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Mechanism of Intramolecular Cyclization of Quaternary Ammonium Salts Containing a β,γ-Unsaturated Fragment and Various π4 Fragments by Gevorgyan, H. R., Chukhadzhyan, E. O., Ayrapetyan, L. V.

“…The review considers the mechanism of intramolecular cyclization (intramolecular Diels–Alder reaction) of quaternary ammonium salts simultaneously containing…”
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Light-Induced Self-Oscillations and Spoiling of the Bragg Resonance Due to Nonlinear Optical Propagation in Heliconical Cholesteric Liquid Crystals by Gevorgyan, Ashot H., Simoni, Francesco

“…In a recent paper, we have reported the results of a study of the nonlinear light propagation of a beam traveling along the helix direction of a heliconical…”
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Multimode Robust Lasing in a Dye-Doped Polymer Layer Embedded in a Wedge-Shaped Cholesteric by Sarukhanyan, Tatevik M., Gharagulyan, Hermine, Rafayelyan, Mushegh S., Golik, Sergey S., Gevorgyan, Ashot H., Alaverdyan, Roman B.

“…Cholesteric liquid crystals (CLCs) with induced defects are one of the most prominent materials to realize compact, low-threshold and tunable coherent light…”
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Onset of Optical Instabilities in the Nonlinear Optical Transmission of Heliconical Cholesteric Liquid Crystals by Gevorgyan, Ashot H., Simoni, Francesco

“…We report the result of an accurate calculation of optical transmission of a light beam traveling along the helix direction of a heliconical cholesteric liquid…”
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The Determination of the Sensitivity of Refractive Index Sensors by Efimov, Ilya M., Vanyushkin, Nikolay A., Gevorgyan, Ashot H.

“…A new approach to determining the sensitivity of refractive index sensors is proposed. It has been shown that relative and absolute sensitivity show different…”
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Light Scattering by a One-Dimensional Absorbing Layer with a Continuous Refractive Index between Two Dielectrics by Vanyushkin, N. A., Gevorgyan, A. H., Golik, S. S.

“…We consider the passage of a plane electromagnetic wave through a 1D absorbing layer sandwiched between two generally different semi-infinite dielectrics. The…”
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On Peculiarities in Localization of Light in Cholesteric Liquid Crystals by Gevorgyan, A. H., Golik, S. S., Gevorgyan, T. A.

“…We have analyzed peculiarities in the localization of light in a layer of a cholesteric liquid crystal (CLC) for the normal incidence of light. It is shown…”
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Magnetically Induced Transparency in Media with Helical Dichroic Structure by Gevorgyan, Ashot H, Golik, Sergey S, Vanyushkin, Nikolay A, Efimov, Ilya M, Rafayelyan, Mushegh S, Gharagulyan, Hermine, Sarukhanyan, Tatevik M, Hautyunyan, Meruzhan Z, Matinyan, Gvidon K

“…In our paper, the magneto-optical properties of a dichroic cholesteric liquid crystal layer with large values of magneto-optical parameter g and low values of…”
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Preliminary investigations of parasite contamination of water sources in Armenia by Shcherbakov, Oleg V., Aghayan, Sargis A., Gevorgyan, Hasmik Sh, Abgaryan, Tigran A., Gevorgyan, Ruzanna H., Jiménez-Meléndez, Alejandro, Robertson, Lucy J.

“…The intestinal protozoan parasites, Cryptosporidium and Giardia, are known to have a global distribution, infecting and causing disease in a range of hosts,…”
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Design of a Highly Sensitive Detector Using a Ternary Photonic Crystal (PC) Based on Titanium Nitride Sandwiched between Si and SiO2 for the Creatinine Concentration Detection in the Blood Serum by Daher, Malek G., Trabelsi, Youssef, Panda, Abinash, Gevorgyan, Ashot H., Abohassan, Khedr M., Smirani, Lassaad K., Altahan, Baraa Riyadh, Rashed, Ahmed Nabih Zaki

“…It is very important to design a rapid and sensitive device for the creatinine concentration detection due to it being one of the most considerable benchmarks…”
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Gain and Features of Radiation of Positrons in a Crystalline Undulator with Sections by Gevorgyan, H. L., Gevorgian, L. A., Shamamian, A. H.

“…The undulator radiation of positrons channeled in a crystalline undulator with sections (CUS) is investigated theoretically taking into account the effect of…”
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Base-Catalyzed Intramolecular Cycloaddition of Dialkyl(4-hydroxybut-2-yn-1-yl)[3-(4-bromophenyl)prop-2-yn-1-yl]ammonuim Chlorides and Recyclization of the Products by Chukhajian, E. O., Gevorgyan, H. R., Shahkhatuni, K. G., Chukhajian, El. O., Panosyan, H. A.

“…Dialkyl(4-hydroxybut-2-yn-1-yl)[3-(4-bromophenyl)prop-2-yn-1-yl]ammonium chlorides in the presence of 2 equiv of potassium hydroxide at room temperature…”
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Specific properties of light localisation in the cholesteric liquid crystal layer. The effects of layer thickness by Gevorgyan, A. H.

“…We investigated the effect of the thickness of the cholesteric liquid crystal (CLC) layer on the light energy and the density of the localised light energy in…”
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Synthesis of 4-(Hydroxymethyl)dihydroisoindolium Salts and Their Intramolecular Recyclization by Chukhadzhyan, Em. O., Gevorgyan, H. R., Shahkhatuni, K. G., Chukhadzhyan, El. O., Ayrapetyan, L. V., Khachatryan, A. A.

“…The review discusses intramolecular cyclization of ammonium salts containing a 4-hydroxybut-2- yn-1-yl group in combination with various π 4 -fragments, as…”
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The peculiarities of radiation of chiral photonic crystals with isotropic defect layer by Gevorgyan, A.H., Oganesyan, K.B., Harutyunyan, E.M., Arutyunyan, S.O.

“…The peculiarities of defect modes and reflection spectra of chiral photonic crystals (CPC) with an isotropic defect for various thicknesses of the defect layer…”
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Tuning of emission wavelength in chiral photonic crystals with an anisotropic defect layer by Gevorgyan, A.H., Harutyunyan, M.Z.

“…We considered some properties of defect modes in chiral photonic crystals with an anisotropic defect layer at oblique light incidence. The problem was solved…”
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Synthesis of Potentially Bioactive 6-Bromobenzo[f]isoindolinium Bromides by Base-Catalyzed Intramolecular [4+2]-Cycloaddition by Chukhadzhian, E. O., Gevorgyan, H. R., Ayrapetyan, L. V., Chukhadzhian, El. O., Shahkhatuni, K. G., Mkrtchyan, A. S., Panosyan, G. A.

“…Intramolecular cyclization of bromides of diethyl-, dipropyl-, and penthamethylenepropargyl[3-(4-bromophenyl)prop-2-ynyl]ammonium into…”
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