Systems and methods are provided for analyzing magnetic hysteresis. A reversible component associated with an applied magnetic field is determined for establishing a series-distributed model. One or more hysteresis loops are generated for analyzing magnetic hysteresis of a magnetic material.

A magnetic body simulation device includes a memory; and a processor coupled to the memory and the processor configured to decide a search section for searching a rotational coefficient of each magnetization vector in a plurality of elements included in a magnetic body, in a process of calculating the each rotational coefficient in a state in which magnetic energy of the magnetic body is minimized, to determine whether or not a first condition is satisfied in which a width of the decided search section is less than or equal to a certain length, and a first rotational coefficient decided by a predetermined method is included in the search section, and to calculate, when the first condition is satisfied, a static magnetic field vector corresponding to the first rotational coefficient by linear interpolation based on static magnetic field vectors at both ends of the search section.

A system for generating medical image scanner configurations includes a scanner configuration database and a simulation component. The database stores a scanner configuration dataset corresponding to a medical image scanner. The simulation component includes a display module which is configured to present a graphical user interface (GUI) utilized by the medical image scanner, and an editing module which is configured to create a modified scanner configuration dataset based on commands received from a user via the GUI. Additionally, the simulation component includes a simulation module which is configured to (i) perform a simulation of the medical image scanner using the modified scanner configuration dataset to yield simulated results, (ii) use the display module to present the simulated results in the GUI, and (iii) in response to receiving user approval of the simulated results via the GUI, save the modified scanner configuration dataset to the database.

A magnetic field sensor includes a die and a current generator in the die. The current generator generates a driving current. A Lorentz force transducer is also formed in the die and coupled to the current generator to obtain measurements of a magnetic field based upon the Lorentz force. The magnetic field has a resonance frequency and the current generator drives the Lorentz force sensor with the driving current having a non-zero frequency different from the resonance frequency.

A system, a method and a computer program product are provided for local perturbation immunity in a vector-based sensing device. Measurement data from at least one vector-based sensing device is evaluated at a given time using a heuristic to identify an occurrence of a perturbing event, wherein the at least one vector-based sensing device includes either a magnetometer or an accelerometer, or both the magnetometer and the accelerometer. A time-shifting component is provided to reject the perturbing event for a duration of the perturbing event and use measurement data from a gyroscope to construct vector-based sensing device measurement data unaffected by the perturbing event.

A calculating method for ultimate demagnetization temperature of loudspeaker magnetic steel includes drawing a 2D or 3D geometric model view of the system; importing the performance parameter of magnetic steel and designing variables to be solved and formulas; establishing a finite element model for the system according to the imported performance parameter of magnetic steel, variables and formulas; solving and conducting a steady-state analysis of the finite element model for a coordinate (Hn, Bn), a loadline slope Pc value and an ultimate demagnetization temperature value of the operation point under 20 C. on BH curve by calculating; obtaining a demagnetization curve view with post-treatment. Thus, a value of loadline slope Pc is obtained, and the ultimate demagnetization temperature of loudspeaker magnetic steel can be obtained importing the variables and formulas into FEA simulation through the temperature coefficient of magnetic steel and by the solution and steady-state analysis using COMSOL Multiphysics software.

A vector-magnetic-property-controlling material according to the present embodiment is subjected to a scratching process in two directions that intersect on the surface of a steel material. An iron core according to the present embodiment is configured from an oriented magnetic steel material which has been subjected to a scratching process in two directions that intersect on the surface thereof.

Methods and apparatuses for processing MR signal are disclosed herein. An exemplary method comprises: when acquired K-space signals are amplified, assigning a first amplification gain to signals within a first signal region in the K space, and assigning a second amplification gain to signals within a second signal region in the K space.

An electronic device is provided. The electronic device includes a display, a camera, and a processor operatively connected to the display and the camera. The processor may display an augmented reality on the display on the basis of an image captured by the camera, may display a point on the display so as to move on the augmented reality while interworking with the movement of the electronic device, may recognize a selected spot on the augmented reality, may display a guide area on the augmented reality, the guide area including the selected spot such that the point moves within a specific area, may store sensor information including a geomagnetic value measured while the point moves within the guide area, may store radio signal intensity information measured while the point moves within the guide area, and may correct a geomagnetic value included in the sensor information.

A method of determining a NMR prediction result of a sample is provided. The method can include receiving a NMR spectrum of the sample and/or identifying a section of a ppm range in the NMR spectrum having a non-stationary peak. The method can include determining a modified data point for the NMR spectrum based on data points in the identified section. The modified data point can be determined such that the modified data point is a weighted average value of the data points in the identified section in the NMR spectrum. The method can include replacing the identified section in the NMR spectrum with the modified data point for the NMR spectrum to determine a modified NMR spectrum. The method can include determining the NMR prediction result of the sample based on the modified NMR spectrum and a calibration vector (e.g., using a partial least square (PLS) analysis).