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- Physics 1
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481
Dynamic regimes in planetary cores: $\tau $–$\ell $ diagrams
Published 2024-05-01“…Planetary cores are the seat of rich and complex fluid dynamics, in which the effects of rotation and magnetic field combine. The equilibria governing the strength of the magnetic field produced by the dynamo effect, the organisation and amplitude of the flow, and those of the density field, remain debated despite remarkable progress made in their numerical simulation. …”
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482
Magnetic Nanoparticles of Chitosan for Targeted Delivery System of Plasmids to the Lungs
Published 2014-01-01“…We developed chitosan nanoparticles with the plasmid pCEM-Luc, which contains a promoter activated by magnetic field. Nanoparticles of 200–250 nm obtained by ionic gelation with a 99% retention rate were transfected in B16F10 cells and in vivo in the lungs of Balb/c mice by intratracheal administration. …”
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483
Research on Vibration Characteristics of a Ceramic Spindle Based on the Reverse Magnetic Effect
Published 2019-01-01“…The influence about the reverse magnetic field characteristic of the ceramic rotating shaft and dynamic stiffness of the contact ball bearing on the dynamic phenomena of the spindle is analyzed, which is verified by experiments. …”
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484
Magnetohydrodynamic Simulation of Forced Magnetic Reconnection
Published 2023-12-01“…The results show that these pulses propagate towards the current sheet, where the magnetic field changes direction, generates a perturbed magnetic field consequently, and triggers the magnetic reconnection phenomenon in an X-point in the center of the current sheet. …”
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485
Characterizing Auroral‐Zone Absorption Based on Global Kp and Regional Geomagnetic Hourly Range Indices
Published 2020-12-01“…In this paper the hourly range of the magnetic field (HR) is examined as an alternative to the 3‐hr Kp index for describing the dynamic and localized features of auroral absorption represented by the hourly range of absorption (HRA). …”
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486
An Operational Geomagnetic Baseline Derivation Method for Magnetic Observatories Located in Mid‐Latitudes
Published 2024-12-01“…Abstract Ground magnetic field measurements are an important tool to determine the strength of space weather events in the terrestrial environment on local and global scales. …”
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487
Boundary overlap in the open XXZ spin chain
Published 2025-01-01“…In this paper we compute the overlaps of the ground states for the open spin chains after a change of one of the boundary magnetic fields. It can be considered as the first step toward the study of the boundary quench problem: behaviour of an open spin chain after an abrupt change of one boundary magnetic field.…”
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488
HARMONIC ANALYSIS OF MAGNETOMOTIVE FORCE IN THE AIR GAP OF SIX-PHASE ASYNCHRONOUS MACHINES
Published 2024-09-01“…There are many publications, but few of them are dedicated to the in-depth study of the multiphase motor (m>3) and especially of the magnetic field in its air gap. The purpose of the present paper: the development of the mathematical model of the magnetomotive force in the air gap of the six-phase asynchronous machines, which determines the fundamental properties ofthe machine, the structure of the magnetic field and the torque developed, the efficiency, the error tolerance. …”
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489
IMF B y influence on fast earthward convection flows in the near-lunar magnetotail
Published 2025-02-01“…Abstract This study investigates the effects of non-zero IMF B y on the magnetotail B y and fast earthward ion convection (V ⊥ > 200 km/s, "⊥" indicates perpendicular to the magnetic field) in the near-lunar magnetotail plasma sheet using the plasma parameters and magnetic field detected by the ARTEMIS (Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon’s Interaction with the Sun) P1 satellite during the period 2011–2022. …”
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490
Magnetopause Standoff Position Changes and Geosynchronous Orbit Crossings: Models and Observations
Published 2023-06-01“…Results show that there are discrepancies between the MHD models' standoff positions of the dayside magnetopause for the same solar wind conditions on events that included (a) an increase in solar wind dynamic pressure and a step function in the Interplanetary Magnetic Field Bz component; (b) nominal solar wind conditions (values of approximated 400 km/s for solar wind speed and 5 nT for the magnetic field magnitude) with a northward IMF; and (c) compression caused by several coronal mass ejections impacting the near Earth environment. …”
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491
Differential Magnetometer Measurements of Geomagnetically Induced Currents in a Complex High Voltage Network
Published 2020-04-01“…Modeling GICs requires knowledge of the source magnetic field and the Earth's electrical conductivity structure, in order to calculate the geoelectric fields generated during magnetic storms, as well as knowledge of the topology of the HV network. …”
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492
An Efficient, Time‐Dependent High Speed Stream Model and Application to Solar Wind Forecasts
Published 2023-05-01“…We find average accuracies of 2.8 cm−3 in the number density (50% error over the full profile), 56.7 km/s in the radial velocity (10%), 2.2 nT in the absolute radial magnetic field (50%), 1.6 nT in the absolute longitudinal magnetic field (50%), and 7 × 104 K in the temperature (50%).…”
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493
Designing a Planar Fluxgate Using the PCB Technology
Published 2021-06-01“…Scientists estimate the strength of such magnetic fields as deciles of nanotesla. The key requirements for the sensors of ultra-low magnetic field are: resolution, noise level in the measurement channel, temperature stability, linearity and repeatability of the characteristics from one produced item to another. …”
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494
ICEEMDAN–VMD denoising method for enhanced magnetic memory detection signal of micro-defects
Published 2025-02-01“…The comparison indicated that the ICEEMDAN–VMD denoising method significantly enhanced the denoising effect, and the SNRs of the components of the magnetic field signal could be increased by up to 69.426%. …”
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495
ABOUT THE SOURCE OF THE KURSK MAGNETIC ANOMALY
Published 2024-11-01“…For such parameters, the distribution of relative magnetic field values at altitudes was calculated and compared with the observed ones. …”
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496
Additively-Manufactured, Magnetically Controlled, Frequency and Polarization Reconfigurable Phased Array Antenna
Published 2025-01-01“…Simultaneously, when magnetic field is applied to the phase shifters, continuous beam steering within ±25° of the boresight can be realized (±35° when fully saturating the ferrite at the phase shifters). …”
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497
Comparing Three Approaches to the Inducing Source Setting for the Ground Electromagnetic Field Modeling due to Space Weather Events
Published 2021-02-01“…In this paper, we compare results of the GEF (and ground magnetic field) simulations using three different source models. …”
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498
Research on the Application of Silver Nanowire-Based Non-Magnetic Transparent Heating Films in SERF Magnetometers
Published 2025-01-01“…Typically, as the current increases, a larger magnetic field is generated. When integrated with the heating system discussed in this paper, this characteristic can effectively mitigate low-frequency magnetic interference. …”
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499
Forecast of the Energetic Electron Environment of the Radiation Belts
Published 2022-12-01“…As the terrestrial magnetic field responds to variations in geomagnetic activity, the value of L* will vary for a specific location. …”
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500
Validating a UK Geomagnetically Induced Current Model Using Differential Magnetometer Measurements
Published 2024-02-01“…Modeling GICs requires knowledge about the source magnetic field and the electrical conductivity structure of the Earth to calculate ground electric fields during enhanced geomagnetic activity. …”
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