Results 21 to 30 of about 216,890 (260)
Modeling electrical dispersion phenomena in Earth materials
Annals of Geophysics, 2008 It is illustrated that IP phenomena in rocks can be described using conductivity dispersion models deduced as solutions to a 2nd-order linear differential equation describing the motion of a charged particle immersed in an external electrical field. Five
D. Patella
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Apparent resistivity and spectral induced polarization in the submarine environment
Anais da Academia Brasileira de Ciências, 2001 Relatively few investigations have employed electrical methods in the submarine environment, which may be promising for mineral deposits or threatened by environmental problems.
HERCULES DE SOUZA, EDSON E. S. SAMPAIO
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Mask-induced polarization [PDF]
SPIE Proceedings, 2004 The objective of this paper is to study the polarization induced by mask structures. Rigorous coupled-wave analysis (RCWA) was used to study the interaction of electromagnetic waves with mask features. RCWA allows the dependence of polarization effects of various wavelengths of radiation on grating pitch, profile, material, and thickness to be studied.
Andrew Estroff +6 more
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Quantum‐rotor‐induced polarization [PDF]
Magnetic Resonance in Chemistry, 2018 Quantum‐rotor‐induced polarization is closely related to para‐hydrogen‐induced polarization. In both cases, the hyperpolarized spin order derives from rotational interaction and the Pauli principle by which the symmetry of the rotational ground state dictates the symmetry of the associated nuclear spin state.
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Induced Polarization of Carbonates [PDF]
Journal of Geophysical Research: Solid Earth, 2021 AbstractComplex conductivity measurements of carbonate rocks are scarce despite the occurrence of these rocks at the surface of the Earth. The complex conductivity spectra of 57 carbonate samples were measured in a broad frequency range and at four salinities (NaCl).
N. Panwar +10 more
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Detection of Buried Utilities Using Electrical Resistivity Imaging (ERI) Technique [PDF]
Engineering and Technology Journal, 2015 The main objective ofthis paper is to show the ability of resistivity technique for investigating the buried utilities (their location and depth) for characterizing the surrounding subsurfacesoils.
Hussein H. Karim +2 more
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Microtubule-induced cortical cell polarity [PDF]
Genes & Development, 2007 Most cells are polarized. Embryonic and stem cells can use their polarity to generate cell diversity by asymmetric cell division, whereas differentiated cells use their polarity to execute specific functions. For example, fibroblasts form an actin-rich leading edge required for cell migration, neurons form distinctive axonal and dendritic compartments ...
Sarah E, Siegrist, Chris Q, Doe
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Frontiers in Earth Science, 2023 The identification of hydrocarbons buried on the seafloor is highly dependent on geophysical exploration capabilities. Seismic exploration has been an important tool in providing information on submarine stratigraphy before offshore drilling, but it is a
Ning Qiu +11 more
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Electromagnetically induced polarization grating [PDF]
Scientific Reports, 2018 AbstractBased on electromagnetically induced transparency (EIT), we investigate an all-optical grating structure to realize polarization-dependent multiple beam splitting in the Raman-Nath limit. To optimize the grating performance, higher excited state [e.g., nS1/2 (n ≥ 6)] of ultracold 87Rb atoms is employed to construct a five-level Ξ-Λ system ...
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Gaussian induced dipole polarization model [PDF]
Journal of Computational Chemistry, 2007 AbstractA new induced dipole polarization model based on interacting Gaussian charge densities is presented. In contrast to the original induced point dipole model, the Gaussian polarization model is capable of finite interactions at short distances. Aspects of convergence related to the Gaussian model will be explored.
Dennis, Elking +2 more
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