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23481
History and Some Aspects of the Lamb Shift
Published 2020-04-01“…Hans Bethe’s calculation of the shift showed how to deal with the divergences plaguing the existing theories and led to the understanding that interactions with the zero-point vacuum field, the lowest energy state of the quantized electromagnetic field, have measurable effects, not just resetting the zero of energy. …”
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23482
Multi-wavelength Study of Blazars Using Variability as a Tool
Published 2016-09-01“…Blazars are the best candidates for such a study, and hence a considerable amount of effort is being made to investigate variability in these sources across the electromagnetic spectrum. Here, using the Mt. Abu infrared observatory (MIRO) blazar monitoring program, we present intra-night, inter-night, and long term aspects of the variability in S5 0716+71, 3C66A, and OJ 287. …”
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23483
Detection and Characterization of Human Teeth Caries Using 2D Correlation Raman Spectroscopy
Published 2019-04-01“…Theoretical calculations provide convincing evidence that the fluctuationsare not the result of diffusion, orientation or local electromagnetic field gradients but rather are the result of subtle variations ofthe excited-state lifetime, energy and geometry of the molecule and producing a signature response for carious detection.…”
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23484
Enhancement of Electrochromic Properties of Polyaniline Induced by Copper Ions
Published 2022-05-01Get full text
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23485
Electric generator power supply source for downhole directional survey measure while drilling
Published 2018-08-01“…Synchronous generators of directional survey measure while drilling that is loaded via sole rectifier generates internal oscillations of electromagnetic torque, which cause the increasing probability of premature failure of its windings. …”
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23486
Triple-Band Notched Ultra-Wideband Microstrip MIMO Antenna with Bluetooth Band
Published 2023-05-01“…Two identical metallic frames of an octagon-shaped electromagnetic band gap structure (EBG) were placed along the main feeding line to achieve the notch characteristic with X-band satellite communication with high sharpness edges. …”
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23487
Evaluation of a Direct Lightning Strike to the 24 kV Distribution Lines in Thailand
Published 2019-08-01“…Analysis and simulations are conducted using the Alternative Transients Program/Electromagnetic Transients Program (ATP/EMTP) to find the energy absorbed by the arrester and the voltages across the insulator. …”
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23488
A Deep-Learning Approach to a Volumetric Radio Environment Map Construction for UAV-Assisted Networks
Published 2024-01-01“…This neglects the altitude-related characteristics of electromagnetic wave propagation and confines REMs to 2D formats, which limits the comprehensive and continuous visualization of propagation environment variation in spatial dimensions. …”
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23489
Analysis of the Borehole Effect in Borehole Radar Detection
Published 2020-10-01“…When the influence of the sonde is considered, the resonance disappears because the relative permittivity of the sonde is low, which makes the propagation speed of the electromagnetic wave between the antennas accelerate and lose the conditions for resonance. …”
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23490
Self-Supervised Transformers for Unsupervised SAR Complex Interference Detection Using Canny Edge Detector
Published 2024-01-01“…As the electromagnetic environment becomes increasingly complex, a synthetic aperture radar (SAR) system with wideband active transmission and reception is vulnerable to interference from devices at the same frequency. …”
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23491
Alleviative effects of Faradarmani Consciousness Field on Triticum aestivum L. under salinity stress [version 4; peer review: 2 approved]
Published 2023-06-01“…It is a novel field and is described similarly to the field of gravity, or the electromagnetic field. This field is neither matter nor energy, and therefore does not possess a quantity. …”
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23492
An Optimized Air-Core Coil Sensor with a Magnetic Flux Compensation Structure Suitable to the Helicopter TEM System
Published 2016-04-01“…The air-core coil sensor (ACS) is widely used as a transducer to measure the variation in magnetic fields of a helicopter transient electromagnetic (TEM) system. A high periodic emitting current induces the magnetic field signal of the underground medium. …”
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23493
Properties, Characteristics and Parameters of Permanent Magnet Synchronous Motors under Vector and Scalar Frequency Control
Published 2019-06-01“…Also, the simplest law of frequency control, viz. a proportional one, which, however, provides the maximum electromagnetic torque of the engine unchanged at R1 = 0 at all frequencies due to the constant magnetic flux, is applicable to a synchronous frequency controlled motor. …”
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23494
Novel theory of the human brain: information-commutation basis of architecture and principles of operation
Published 2015-02-01“…Horizontal commutation between different parts of the brain proceeds extraneurally in holograms formed by the interference and diffraction of reference and object electromagnetic waves of the information-commutation modules of the brain cortex in cerebrospinal fluid. …”
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23495
Fiber Bragg Grating Sensors for the Oil Industry
Published 2017-02-01“…Compared with piezoelectric transducers, FBG ultrasonic sensors demonstrate superior sensitivity, more compact structure, improved spatial resolution, high stability and immunity to electromagnetic interference (EMI). In the last section, we present a case study of a well-logging field to demonstrate the utility of FBG sensors in the oil and gas industry.…”
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23496
Improving performance in upper-division electricity and magnetism with explicit incentives to correct mistakes
Published 2023-07-01“…This study seeks to determine whether giving an explicit incentive to students in an upper-division first-semester electromagnetism course (EM1), in the form of partial credit for reworking unit exam problems, will improve their problem-solving skills as measured by performance on identical problems on the final exam. …”
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23497
A Variational Approach to Resistive General Relativistic Two-Temperature Plasmas
Published 2023-06-01“…The total action is a combination of four pieces: an action for a multifluid/plasma system with dissipation/resistivity and entrainment; the Maxwell action for the electromagnetic field; the Coulomb action with a minimal coupling of the four-potential to the charged fluxes; and the Einstein–Hilbert action for gravity (with the metric being minimally coupled to the other action pieces). …”
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23498
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23499
Investigation of Insulation Characteristics of GFRP Crossarm Subjected to Lightning Transient
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23500
A New Configuration Of Broadband Patch Antenna With Circular Polarization For Wireless Power Transmission
Published 2022-01-01“…The features of the proposed design are investigated and optimized using a 3D electromagnetic (EM) solver. It was found that the proposed antenna covers a broad band of 425MHz, has a 3 dB axial ratio CP bandwidth of approx. 85% of the resonant band, and a gain level of 7.4 dBi or more in the bandwidth of the resonant band. …”
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