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Extreme Heating of Minor Ions in Imbalanced Solar-wind Turbulence
Published 2025-01-01“…Additional features include a steep transition-range electromagnetic spectrum, proton-cyclotron waves propagating in the direction of the imbalance, significantly enhanced proton-to-electron heating ratios, ion temperatures that are considerably more perpendicular with respect to magnetic field, and extreme heating of heavier species in a manner consistent with mass scalings inferred from spacecraft measurements. …”
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1403
Electrically tunable THz graphene metasurface wave retarders
Published 2023-03-01“…Anisotropic materials with chirality or birefringence can be used to manipulate the polarization states of electromagnetic waves. However, the comparatively low anisotropy of natural materials hinders the miniaturization of optical components and devices at terahertz frequencies. …”
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1404
A 3D Empirical Model of Electron Density Based on CSES Radio Occultation Measurements
Published 2022-05-01“…Abstract China Seismo‐Electromagnetic Satellite (CSES) was successfully launched in February 2018. …”
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1405
Searching for string bosenovas with gravitational wave detectors
Published 2025-01-01“…During the superradiance growth of a dark photon cloud — which occurs for dark photon masses m A ′ ~ 10 − 14 − 10 − 11 eV $$ {m}_{A^{\prime }}\sim {10}^{-14}-{10}^{-11}\textrm{eV} $$ around stellar-mass black holes ( m A ′ ~ 10 − 23 − 10 − 16 eV $$ {m}_{A^{\prime }}\sim {10}^{-23}-{10}^{-16}\textrm{eV} $$ for supermassive black holes) — the dark electromagnetic field might reach a critical field strength, when a network of dark photon strings is produced via a superheated phase transition. …”
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1406
ASYNCHRONOUS MOTOR WITH A HOLLOW PERFORATED ROTOR
Published 2018-04-01“…This provides an increase in the active component of the rotor current that is proportional to the electromagnetic torque of the motor. Correspondingly, the frontal parts of equivalent winding of the hollow rotor (through which the currents do not generate torque) would not be spread at high rotational speeds to the area of the active length of the machine.…”
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1407
Patient's head position-dependent safety analysis of birdcage coil, loop array, and dipole array for applications at 300 MHz in magnetic resonance imaging based on hydrogen nuclei:...
Published 2025-02-01“…This study employs electromagnetic (EM) simulations to quantitatively assesses variations in SAR resulting from different patient's head positions across three types of RF coils (birdcage coil, loop array coil, and dipole array coil), frequently employed as transmission/reception (Tx/Rx) coils in 7 T MRI. …”
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1408
Navigating ALICE: Advancements in Deployable Docking and Precision Detection for AUV Operations
Published 2024-12-01“…The DDS comprises a semi-submersible protective frame and a subsurface, heave-compensated docking component equipped with backlit visual markers, an electromagnetic (EM) beacon, and an EM lifting device. …”
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1409
Effects of Homeopathic Arsenicum Album, Nosode, and Gibberellic Acid Preparations on the Growth Rate of Arsenic-Impaired Duckweed (Lemna gibba L.)
Published 2010-01-01“…It may also be useful to investigate the influence of external factors (e.g., heat, electromagnetic radiation) on the effects of homeopathic preparations.…”
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1410
Research on Quantization Error Influence of Millimeter-Wave Phased Array Antenna
Published 2021-01-01“…Based on the planar rectangular antenna array-electromagnetic coupling model, we propose a method of verifying the effect of random errors on the phased array antenna. …”
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1411
X-ray pulsed light curves of highly compact neutron stars as probes of scalar–tensor theories of gravity
Published 2024-12-01“…Consequently, scalar parameters might be better constrained when uncertainties in NS radii decrease, where this could occur with the advent of next-generation gravitational wave detectors, such as the Einstein Telescope and LISA, as well as future electromagnetic missions like eXTP and ATHENA. Thus, our findings suggest that accurate X-ray data of the NS surface emission, jointly with refined theoretical models, could constrain STTs.…”
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1412
The evolving roles of geophysics in environmental assessment, monitoring, and management of landfill leachate contaminant plumes: An overview
Published 2025-06-01“…The study examined the effectiveness of geophysical methods such as resistivity, seismic, electromagnetic (EM), and magnetic, heightening their strengths and limitations. …”
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1413
Unveiling the Emission Mechanisms of Blazar PKS 1510−089. II. Jet−BLR Connection and Black Hole Mass Estimation
Published 2025-01-01“…The flat spectrum radio quasar PKS 1510−089 is one of the most active blazars across the entire electromagnetic spectrum, displaying periods of flaring activity. …”
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1414
Simulation study on converter transformer windings stress characteristics under harmonic current and temperature rise effect
Published 2025-04-01“…The research developed a two-dimensional (2D) refined simulation model integrating electromagnetic, thermal-fluid, and solid mechanics fields to analyze the temperature distribution patterns influenced by harmonic currents. …”
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1415
A strategy to reduce thermal expansion and achieve higher mechanical properties in iron alloys
Published 2025-01-01“…Abstract Iron alloys, including steels and magnetic functional materials, are widely used in capital construction, manufacturing, electromagnetic technology, etc. However, they face the long-standing challenge of high coefficient of thermal expansion (CTE), limiting the applications in high-precision fields. …”
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1416
Soft Metalens for Broadband Ultrasonic Focusing through Aberration Layers
Published 2025-01-01“…Abstract Aberration layers (AL) often present significant energy transmission barriers in microwave engineering, electromagnetic waves, and medical ultrasound. However, achieving broadband ultrasonic focusing through aberration layers like the human skull using conventional materials such as metals and elastomers has proven challenging. …”
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1417
Modeling flux linkages of an induction motor in dynamic modes. Comparison of the effectiveness of various control algorithms
Published 2019-12-01“…During one of the discussions of the materials of these studies, it is suggested that the electromagnetic flux is stabilized in asynchronous electric drives with such a connection. …”
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1418
Device and Methods for Measuring of Acoustic Anisotropy and the Residual Stress in the Main Gas Pipelines’ Metal
Published 2019-03-01“…The aim of the work is to develop methods for acoustic assessment of the stress-strain state, the elastic moduli and the properties anisotropy of pipeline material and to study these characteristics in different sections of main pipelines using a device based on contactless EMA transducers.Methods are implemented using specialized equipment (the structurescope SEMA) and non-contact electromagnetic acoustic transducers. As an object of research, we used fragments – the cuttings of gas pipelines with circumferential welds both after fabrication and removed from service with stress corrosion cracking, including ones with corrosion damage and without visible damage.The method of determining the plane stress-strain state of pipeline elements is based on the phenomenon of acoustoelasticity – the dependence of the propagation velocity of ultrasonic waves on mechanical stresses. …”
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1419
FRR: A Fast Routing Recovery mechanism minimizing network formation time in smart grids
Published 2025-03-01“…The adopted standards allow Wi-SUN FAN networks to take advantage of features such as security, frequency hopping, multi-hop packet routing, and IPv6 addressing, ensuring a wide coverage area and immunity against electromagnetic interference. Despite all the advantages, a shortcoming of Wi-SUN FAN networks is the long network formation time. …”
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Grid-Forming Inverters: A Comparative Study of Different Control Strategies in Frequency and Time Domains
Published 2024-01-01“…Subsequently, time-domain verification using the electromagnetic transient models is conducted for these case studies as well as to assess the power tracking capability of these control strategies in response to changes in power references. …”
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