Abstract: An antenna device includes: a first and a second conductive wire; a third and a fourth conductive wire which are disposed along a part of the boundary of a second area on a second plane parallel to and spaced apart from the first plane while being spaced apart from each other; a fifth and a sixth conductive wire which are disposed along a part of the boundary of a third area on a third plane parallel to and spaced apart from the second plane while being spaced apart from each other; connection parts connecting the second conductive wires.

Abstract: A plug status detection circuit, a controller, and a vehicle are provided, to detect a plug status in different standards by using one detection circuit. The plug status detection circuit includes a wake-up circuit and a sampling circuit. The wake-up circuit is configured to immediately output or delay outputting a wake-up signal based on a resistance value of a connected resistor of the plug status detection circuit when a plug is connected to a socket, where the wake-up signal is used to trigger a CPU to drive the sampling circuit. The sampling circuit is configured to inject a startup voltage under the drive of the CPU, and after the startup voltage is injected, a level of a detection point of the sampling circuit is used to indicate a plug status.

Abstract: A magnetic resonance imaging device having a field generation unit configured to provide a magnetic field in an imaging volume of the magnetic resonance imaging device. The field generation unit has at least one magnet. A surface of the field generation unit directed towards the imaging volume of the at least one magnet has a concave shape, wherein a direction of access to the imaging volume is oriented essentially perpendicular to a main direction of magnetic field lines in the imaging volume.

Abstract: The present disclosure is directed to a motor for a magnetic resonance (MR) tomography room, to a patient table for the MR room, to a MR elastography device, and to a MR tomography device. A MR tomography device for a MR elastography imaging protocol is arranged within the MR tomography room, and includes a rotational drive for supplying rotational energy to power a MR elastography transducer usable during the MR elastography imaging protocol, and a support structure. The rotational drive comprises a terminal for connecting the MR elastography transducer to the rotational drive, and a bearing means configured such that the position of the terminal relative to the support structure is adaptable along a trajectory predetermined by the bearing means. The rotational drive is mounted to the support structure via the bearing means.

Abstract: A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a developing roller, a drum unit containing the drum, a developing unit containing the roller and being movable so the roller contacts and is spaced from the drum, and a first force receiver receiving a force from a main-assembly first force applier by movement of a door from open to closed positions when mounting the cartridge and a second force receiver movable from a stand-by position by movement of the first force receiver by a force received from the first force applier. The second force receiver takes a projected position receiving a force from the second force applier to move the developing unit so the roller moves out of contact with the drum, the projected position being higher than the stand-by position.

Abstract: Various methods and systems are provided for a current trap. In one example, the current trap has a flat core made of a nonconductive material, a coiled wire having a plurality of turns winding around the flat spiral core, and one or more tuning capacitors physically attached to the flat core and electrically connected to the coiled wire to form a resonant circuit with the coiled wire.

Abstract: The present disclosure relates to a method and a system for minimizing electromagnetic interference (EMI) of magnetic resonance imaging (MRI) systems in complex electromagnetic environments. The method and system described herein provide superior MRI image quality and may reduce costs by eliminating the requirement of expensive shielding in MRI systems/hybrid MRI systems.

Abstract: A method for ascertaining at least one of a position or an orientation of an MR local coil unit for arrangement inside a main magnetic field includes providing a first 3D relative position of a reference sensor system in relation to the main magnetic field; receiving an acceleration vector from at least one acceleration sensor; retrieving a distance vector describing a fixed relative position as a function of the received acceleration vector; calculating a second 3D relative position of the at least one acceleration sensor in relation to the main magnetic field based on the first 3D relative position and the retrieved distance vector; and ascertaining the at least one of the position or the orientation of the MR local coil unit using the first 3D relative position and the second 3D relative position.

Abstract: The present disclosure relates to an MRI system and a method and device for determining a waveform of oblique scanning. Specifically, provided are a magnetic resonance imaging system, a method and device for determining a gradient waveform of oblique scanning, and a computer-readable storage medium.

Abstract: A magnetic resonance coil and a magnetic resonance imaging system using the same are provided. The magnetic resonance coil may include an antenna, an amplifier, and a protective circuit. The antenna may be configured to receive a radio frequency (RF) signal emitted from an object. The antenna may not resonate with the RF signal. The amplifier operably coupled to the antenna configured to amplify the RF signal. The protective circuit may be configured to protect the antenna and the amplifier.

Abstract: The present disclosure relates to a method for analysis of a deuterium substitution rate of a deuterium-substituted sample according to substitution positions using information of a 1H-NMR spectrum of the deuterium-substituted sample.

Abstract: In a method for avoiding artifacts during acquisition of MR data, a first measurement data set (MDS) of a target region of the examination object and at least one second MDS of the target region are acquired, and a combined MDS is created based on the acquired data sets. The first MDS does not sample a first region of k-space to be sampled according to Nyquist and corresponding to a first partial factor, and a second MDS does not sample a second region of k-space to be sampled according to Nyquist and corresponding to a second partial factor. The first and second regions of the k-space are different from each other. Advantageously, a k-space region acquired in none of the acquisitions made can be minimized by the inventive variation in the respective sampling pattern of the acquired MDS, so artifacts are reduced/avoided in MR images reconstructed from the MDS.

Abstract: A method for NMR measurements on borehole materials, e.g., sidewall cores, is based on performing a standard measurement in substantially homogeneous magnetic fields with a sensitivity volume covering an entire sample and a measurement on a fragment of the sample (local measurement), the fragment having a predetermined volume independent of the irregularities of the sample shape (e.g., irregular shaped edges). The fragment of the sample is selected using a switchable static magnetic field gradient or a localized radio-frequency magnetic field. The homogeneous and the local measurement data are processed jointly to obtain volume normalized NMR relaxation data (in porosity units), the processing also using a calibration sample data. A measurement apparatus with an automated sample transfer can be used to implement the method in order to perform high-throughput NMR relaxation measurements that do not require independent measurement of the sample volume.

Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes sequence control circuitry and processing circuitry. The sequence control circuitry performs under-sampled data acquisition whose sample points are located at an equal interval in k-space and acquires k-space frames. The processing circuitry generates a plurality of k-space frames related to a plurality of time resolutions based on the k-space frames. In each of the plurality of k-space frames, the sample points are located at an equal interval, and the interval differs for each of the plurality of k-space frames. The processing circuitry generates a time-series image based on the plurality of k-space frames.

Abstract: A probe for measuring plasma parameters by means of active plasma resonance spectroscopy comprises an external coupling, a balun, an internal coupling, and a probe head. It is provided that the couplings, the balun, and the probe head are integrated in an electrically-insulating substrate cylinder, and the substrate cylinder has a layered structure made from multiple substrate layers along its rotational axis. In this way, a probe for measuring plasma parameters is provided which enables an improved measurement of the plasma parameters, wherein the plasma is influenced as little as possible during the measurement of the plasma parameters.

Abstract: A method and system for transmitting an electromagnetic (EM) signal in a wellbore to improve an open loop system. The method comprises measuring a parameter indicative of a property of a transmitter using a sensor in the wellbore and generating an input signal for the transmitter based at least in part on the measured parameter to correct distortions exhibited by the output signal of the transmitter. The method comprises also comprises applying the input signal to the transmitter to transmit the EM signal corrected for distortions. The system comprises an antenna, a transmitter, a sensor, and a controller. The controller is configured and operable to generate an input signal for the transmitter based at least in part on the measured parameter to correct distortions exhibited by an output signal of the transmitter; and apply the input signal to the transmitter to transmit the EM signal corrected for the distortions.

Abstract: A magnetic resonance imaging device includes at least one magnetic shielding element, an electrical component and a coil arrangement including at least two coil rings. In an embodiment, the coil rings are arranged offset along a longitudinal direction of a patient receptacle and the coil arrangement is embodied to form a magnetic field in an inner volume surrounded partially by the coil rings and at least partially including the patient receptacle. Further, in an embodiment, the shielding element and the electrical component outside of the inner volume are arranged in the longitudinal direction centrally between the coil rings and the shielding element shields the electrical component from the magnetic field outside of the inner volume.

Abstract: A drum cartridge is configured to be detachably mounted on an apparatus main body in a state where a toner cartridge is mounted on the drum cartridge. A first shutter and a second shutter are configured such that: when the drum cartridge is mounted onto the apparatus main body in a state where the toner cartridge is mounted on the drum cartridge, the first shutter moves from a first closed position to a first open position and the second shutter moves from a second closed position to a second open position, and when the drum cartridge is detached from the apparatus main body in a state where the toner cartridge is mounted on the drum cartridge, the first shutter moves from the first open position to the first closed position and the second shutter moves from the second open position to the second closed position.

Abstract: In a first step, a sample formed of a polyester or decomposition products of a polyester is dissolved in a pretreatment liquid containing 1,1,1,3,3,3-hexafluoro-2-propanol and an organic base to produce a reaction product of the sample, and in a second step, the obtained reaction product is mixed into a solvent (measurement solvent) containing deuterated chloroform and deuterated 1,1,1,3,3,3-hexafluoro-2-propanol to fabricate a sample liquid. Next, in a third step, the amount of the reaction product in the sample liquid is measured through NMR aiming at hydrogen atoms to determine the amount of an acid anhydride structure in the sample.

Abstract: A new method for reconstructing a full spectrum from under-sampled magnetic resonance spectrum data by using a deep learning network. First, the exponential function is used to generate a time-domain signal of the magnetic resonance spectrum, and a zero-filling time-domain signal is obtained after the under-sampled operation is completed in the time domain. The zero-filling time-domain signal and the full spectrum corresponding to the full sampling are combined to form a training data set. Then, a data verification convolutional neural network model is established for magnetic resonance spectrum reconstruction, where the training data set is used to train neural network parameters to form a trained neural network. Finally, the under-sampled magnetic resonance time-domain signal is input to the trained data verification convolutional neural network, and the full magnetic resonance spectrum is reconstructed.