Abstract: In a method and apparatus for performing magnetic resonance (MR) imaging for generating multiple T1 maps of separate regions of interest of a subject along a first spatial axis, multiple MR pulse sequences are generated, each MR pulse sequence being for imaging a respective one of the separate regions of interest of the subject. In order to generate each of the plurality of MR pulse sequences, a spatially selective preparation pulse is generated exciting the region of interest of the subject and a number of imaging sequences that follow the application of the spatially selective preparation pulse are generated. MR imaging data are acquired during the generation of the multiple imaging sequences. The multiple MR pulse sequences are generated during a period not exceeding 30 seconds.

Abstract: An output performance diagnosis apparatus for a fuel cell acquires, in a case where determination is made that a representative value of impedance of the fuel cell acquired during a trip of a vehicle traveling with a fuel cell as a power source is equal to or less than an impedance threshold, during the trip in which the impedance is acquired, a current-voltage characteristic of the fuel cell based on a change of an output voltage of the fuel cell after a period in which the output voltage of the fuel cell is maintained in a range equal to or higher than a lower limit voltage and equal to or lower than a voltage threshold higher than the lower limit voltage over a predetermined period or more, and calculates maximum output electric power of the fuel cell based on the acquired current-voltage characteristic.

Abstract: A wearable magnetic sensor system includes a wearable article that spatially arranges magnetic sensor components around a user's torso to obtain magnetic sensor data used for body pose tracking. The wearable magnetic sensor system includes magnetic sensor components that sense a magnetic field generated by a magnetic transmitter. One or more wearable articles spatially arrange the magnetic sensor components at different locations on a body of the user, such as the arms and torso. The one or more wearable articles include a transmitter attachment mechanism for affixing the magnetic transmitter at, e.g., a torso of the user, and receiver attachment mechanisms for affixing the magnetic sensor components at, e.g., locations of the body other than the torso. The magnetic sensor components are spatially arranged at different locations on the user's body so as to maximize tracking accuracy and minimize interference between the magnetic sensors and the transmitter.

Abstract: An apparatus for automatically collecting gas generated in a secondary battery which is being developed as an energy source for vehicle battery cells, mobile devices, power tools, etc., and automatically injecting the gas into an analysis apparatus so that the gas can be analyzed. The automated apparatus includes a plurality of battery holders in which a plurality of secondary batteries are capable of being mounted, respectively, a battery holder tray in which the plurality of battery holders are placed, a collecting unit which moves in the direction perpendicular to the surface of a secondary battery to be analyzed among the plurality of secondary batteries; and a punching unit which moves in the direction perpendicular to the surface of the secondary battery to punch the surface of the secondary battery The battery holder tray is capable of rotating such that the surface of the secondary battery can face the collecting unit.

Abstract: A rotational angle sensor includes a stator element and a rotor element. The rotor element is mounted to rotate about a rotation axis. The stator element has a transmitter coil and a receiver coil that are arranged on a circuit board. The receiver coil substantially encloses the rotation axis in a circumferential direction and is formed by a plurality of adjacent partial windings. The partial windings are each formed from sections of two circular-arc-shaped conductor paths curved to the left and two circular-arc-shaped conductor paths curved to the right. A first conductor path curved to the right extends through a first point on a first circle, a second point on a third circle and rotated relative to the first point by a quarter of a measuring range of the sensor, and a third point on a second circle and rotated relative to the first point by half the measuring range.

Abstract: An apparatus for automatic testing of an electronic device includes a pad interface unit and measurement circuitry. The pad interface unit is configured to connect to pads of the electronic device. The measurement circuitry is configured to select a circuit path in the electronic device that passes via a digital signal pad from among the pads, which is configured to carry a digital signal, to estimate a non-binary measure indicative of an electrical resistance of the circuit path, by performing current-voltage measurements using the pad interface unit, and to determine, based on the non-binary measure, whether the digital signal pad passes or fails a test.

Abstract: The present invention comprises a friction flow loop test method and apparatus that simulates well bore hydraulic conditions during fracturing utilizing large dual tanks with a primary feed tank and a secondary receiving tank wherein friction reducer hydration is controlled in an environment matching the well bore and is unaffected by recirculation mixing.

Abstract: A difference amplifier can be used for providing an amplified representation of a sensed current through a load device. A separate signal path can be used to provide fast fault detection, without requiring use of the difference amplifier. For example, a voltage scaling circuit can be used to scale a differential input signal indicative of the load current. The scaled representation can then be compared against a specified threshold corresponding to a fault current value. In this manner, a high-speed low-voltage comparator can be used to provide detection of a fault current that otherwise exceeds an input range of the difference amplifier, where the difference amplifier is used separately for precision current monitoring. As an illustrative example, such a scheme can provide fault detection even when an input of the difference amplifier is saturated.

Abstract: A reflectometer for allowing a test of a device. The reflectometer comprises a source of pulsed radiation, a first photoconductive element configured to output a pulse in response to irradiation from the pulsed source, a second photoconductive element configured to receive a pulse, a transmission line arrangement configured to direct the pulse from the first photoconductive element to the device under test and to direct the pulse reflected from the device under test to the second photoconductive element, and a termination resistance provided for the transmission line configured to match the impedance of the transmission line.

Abstract: The invention relates to a cable for electrically linking electronic assemblies, components or peripherals of a magnetic resonance apparatus by means of a symmetrical shielded cable which shields a plurality of conductors for a useful signal with respect to influences of an electromagnetic alternating field by means of at least one shielding device. In order to suppress sheath waves, a shielding device comprises at at least one point an interruption which is bridged by an active resistance or a reactance.

Abstract: A current detection circuit to detect an electric current of the battery pack includes an insulating substrate, a first busbar and a second busbar disposed on a first surface of the insulating substrate, a shunt resistor disposed between the first busbar and the second busbar on the first surface, and electrically connected to the first busbar and the second busbar, and a hall effect sensor disposed on a second surface of the insulating substrate, wherein the second surface is opposite the first surface.

Abstract: A system reads a desired circuit parameter from a pixel circuit that includes a light emitting device, a drive device to provide a programmable drive current to the light emitting device, a programming input, and a storage device to store a programming signal. One embodiment of the extraction system turns off the drive device and supplies a predetermined voltage from an external source to the light emitting device, discharges the light emitting device until the light emitting device turns off, and then reads the voltage on the light emitting device while that device is turned off. The voltages on the light emitting devices in a plurality of pixel circuits may be read via the same external line, at different times. In-pixel, charge-based compensation schemes are also discussed, which can be used with the external parameter extraction implementations.

Abstract: A probe head comprises a plate-shaped support including respective pluralities of guide holes, a plurality of contact probes being slidingly housed in the respective pluralities of guide holes and including at least a first group of contact probes being apt to carry only one type of signal chosen between ground and power supply signals, a conductive portion realized on the support and including a plurality of the guide holes housing the contact probes of the first group, and at least one filtering capacitor having at least one capacitor plate being electrically connected to the conductive portion, the conductive portion electrically connecting the contact probes of the first group.

Abstract: The filter unit has a center frequency and comprises a first dielectric substrate, a first conducting plane, and at least one transmission arrangement. The at least one transmission arrangement comprises a shunt node which has a shunt connection to the conducting plane. The electrical length of the shunt connection defines the center frequency of the filter unit. The transmission arrangement further comprises a plurality of transmission lines connected in series between an input port and an output port, wherein each port is connectable to auxiliary systems with a system impedance. Moreover, each transmission line has a characteristic impedance and wherein the characteristic impedance of each transmission line is less than the system impedance.

Abstract: A bicycle speed sensor is provided on a bicycle. The bicycle includes a chain stay, a rear wheel, a brake disk and a positioning member. The rear wheel includes a hub and the brake disk includes a center hole disposed for the hub to pass through. The positioning member passes through the chain stay, the center hole and the hub so that the rear wheel and the brake disk are positioned on the chain stay. The bicycle speed sensor includes a signal transmitter and a signal sensor. The signal transmitter is configured to transmit a signal and disposed on the brake disk. The signal sensor receives the signal from the signal transmitter and is disposed on the chain stay. By fixedly positioning the signal transmitter and the signal sensor at the brake disk and a default position of and the chain stay respectively, displacements of sensor components is prevented to provide reliable sensing data.

Abstract: A sensing array includes a plurality of pixels, one pixel of which includes: a sensor, the sensor including a first electrode, a second electrode, and an atomic defect site configured to be excited by light of a first frequency; a light source below the sensor and configured to emit light of the first frequency toward the defect site; and a radio frequency (RF) source below the sensor and configured to provide a first voltage to the first electrode, a second voltage to the second electrode, and an RF signal to the sensor, wherein the sensor is configured to sense a magnitude of a physical parameter by generating a photocurrent corresponding to a magnitude of a physical parameter and a differential between the first and second voltages, when excited by the light of the first frequency and affected by the RF signal.

Abstract: The presented invention relates to a method for monitoring an insulation state of a first high-voltage network and an insulation state of at least one further high-voltage network of a vehicle, wherein a single insulation monitor is connected to the first high-voltage network and to the at least one further high-voltage network, and wherein, by means of the insulation monitor, a first insulation measurement, initially, is carried out, in a periodically repeated sequence, on the first high-voltage network, and, then, a further insulation measurement is carried out in each case on the at least one further high-voltage network.

Abstract: Magnetic-based electronic valve readers for determining a location and orientation of magnets coupled to implantable medical devices to determine a setting of the device (e.g., setting of a fluid flow control valve of the medical device). The electronic valve readers include an orientation sensing mechanism that is provided and configured to enable the electronic valve reader to: 1) allow for internal offset calculation of an orientation change of the electronic valve reader during a reading process; and/or 2) during the reading process, provide an indication or warning to the clinician that the orientation of the electronic valve reader has changed to an extent at or exceeding a predetermined angular acceptance threshold or window. Systems including the disclosed electronic valve readers and methods of reading a setting of the device are also disclosed.

Abstract: The present invention provides a strong magnetic force and high heat resistance for a magnetic-field forming magnet that applies a magnetic field to a test object to be inspected by an eddy current flaw detection device. A magnetic-field forming magnet for applying a magnetic field to a test object includes a first magnet and a second magnet. The first magnet has a strong magnet force and the second magnet having higher heat resistance than the first magnet is attached to a near end of the first magnet, the end near the test object.

Abstract: Power distribution network early failure detection method comprising: a waveform is decomposed into an approximation part and detail parts by wavelet transform, wherein the approximation part is referred to as an approximate shape primitive, and the detail parts are referred to as distortion primitives; the distortion primitives are divided into three primitives including harmonics, pulses and other distortions based on extreme points; characteristics of the primitives and time relationships between the primitives are extracted; probability distribution of the waveform is constructed according to the characteristics of the primitives and the time relationships between the primitives; and a judgment result of the waveform is obtained according to probability distribution of waveforms of different types.