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6 articles for “Transvers waves.”
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Acoustic Logging Methods in Fractured and Porous Formations
Abstract: Abstract Formation fractures have significant importance in the rocks’ permeability of oil and gas reservoirs. In real conditions, the opening of vertical fractures exceeds the opening of horizontal fractures and the permeability of reservoirs in conditions of horizontal wells is higher than in vertical conditions. For the sonic log longitudinal waves, unlike the transverse waves, the attenuation rate strongly depends on the wave path direction. It is shown that the …
Published in Journal of Offshore Structure and Technology · Vol. 4, Issue 2, 2017 · pp. 28–35 Read article
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Study of Elastic Properties of Copper Substituted Nickel – Zinc Nano Ferrites Through IR-Spectroscopy
Abstract: Nano crystalline Ni 0.65 Zn 0.35 Cu x Fe (2-2x/3) O 4, (x ranging from 0 – 0.05 in steps of 0.01) ferrites synthesized via hydrothermal route are characterized by FTIR spectroscopy. IR spectra of prepared ferrites demonstrated the two fingerprint absorption bands of spinels in the range of 400-600 cm-1. Lattice constant, X-ray density values obtained from XRD patterns used for evaluating the tetrahedral site and octahedral site force …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 25, Issue 2, 2023 · pp. 1–12 Read article
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Q Anisotropy in the Region of Garhwal Himalaya
Abstract: Abstract Empirical relations have been found out to describe the decay in amplitude with distance of s-waves in the region of Garhwal Himalaya. These functions results from the analysis of spectral amplitudes of three component digital records from 19 local earthquakes obtained from 12-station seismological network deployed in the Garhwal lesser Himalaya. The events lie in a magnitude range from ML 2 to ML 4.5, epicentral distance 5 to 120 …
Published in Journal of Offshore Structure and Technology · Vol. 3, Issue 3, 2016 · pp. 25–31 Read article
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Dispersion Analysis of TE Modes in 1D Magnetized Ferrite Photonic Crystals for Tunable and Switchable Band Gap Filtering Device Applications under Transverse Magnetization Configuration
Abstract: The article comprehensively explores the dispersion characteristics exhibited by TE modes within one-dimensional magnetized ferrite photonic crystals, particularly under the influence of transverse magnetization. We employed the rigorous transfer matrix method, a powerful tool for theoretical investigation, calculation, and behavior analysis of such intricate systems. Our research delves into the structural parameters that govern the behavior of these ferrite photonic crystals, explicitly focusing on the incident parallel wave vector (β) …
Published in Journal of Polymer & Composites · Vol. 11, Issue 7, 2023 · pp. 60–68 Read article
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Misalignment Studies in Laser Diode to Upside Down Tapered Microlens Tipped Circular Core Photonic Crystal Fiber Excitation
Abstract: By employing Gaussian field distributions for both the source and the fiber and also thealready derived ABCD matrix for upside down tapered microlens, we investigate theoreticallythe coupling optics involving a laser diode emitting practically interesting two differentwavelengths either 1.3 μm or 1.5 μm, and a series of circular core photonic crystal fibers withdifferent air filling ratio and lattice constant via upside down tapered microlens of twospecific taper lengths on the …
Published in Research & Reviews : Journal of Physics · Vol. 7, Issue 3, 2018 · pp. 85–101 Read article
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Comparative Study on Fatigue Analysis Methods using Turret-moored FPSO Model
Abstract: Abstract Floating structures are prone to fatigue due to high cyclic loads mainly caused by waves and changing loading conditions. Therefore, fatigue is an important criterion during design. The fatigue life is dependent upon factors such as global and local design, workmanship during construction, maintenance, corrosion protection, and trade and load history. Different approaches are applied to the fatigue strength assessment. Longitudinal stiffener end connections are also important structural elements …
Published in Journal of Offshore Structure and Technology · Vol. 3, Issue 3, 2016 · pp. 1–15 Read article