Abstract: A synchronous reluctance type rotary electric machine of an embodiment has a rotor core. The rotor core includes a plurality of poles, multi-layered hollow parts having a convex shape toward a side radially inward formed for each pole in cross section, and a bridge formed between each of the hollow parts and an outer circumferential surface thereof. When a boundary between two adjacent poles is a pole boundary, a groove is formed on at least one of both sides sandwiching the pole boundary at positions other than on the pole boundary on the outer circumferential surface of the rotor core.

Abstract: According to an embodiment, a communication repeater device includes storage and a controller which detects, upon receiving a radio frame including pairs of orthogonal frequency division multiplexing symbols and cyclic prefixes from the radio base station, switching timing between uplink and downlink according to similarity between certain sections of an original radio frame and a time-shifted radio frame. The controller estimates the subsequent switching timing between the uplink and the downlink from the detected switching timing and frame information stored in the storage.

Abstract: A synchronous reluctance type rotary electric machine of an embodiment includes, a rotor core, a plurality of conductor bars, short-circuit rings, a stator core, and multiphase armature windings. The rotor core is provided to be rotatable around a rotation axis, and includes multi-layered hollow parts having a convex shape toward a side radially inward formed for each pole in cross section, and a bridge formed between each of the hollow parts and an outer circumferential surface thereof. The plurality of conductor bars are disposed in the respective hollow parts and extend in an axial direction and over approximately entire length of the rotor core. The short-circuit rings connect the plurality of conductor bars together.

Abstract: In general, according to one embodiment, an image distribution device of the embodiment includes a receiver, a compressor, a request acceptor, a determiner, and a distributor. The receiver receives data captured by an imaging device of an in-vehicle device mounted in a vehicle. The compressor compresses the captured data of after elapse of a certain time to generate compressed captured data. The request acceptor accepts a distribution request to specify a desired time from an information processing device. The determiner determines whether the desired time is a past time within a certain time from a present time. The distributor distributes, when the desired time is the past time within the certain time from a present time, the captured data to the information processing device, and distributes, when the desired time is a past time prior to the certain time, the compressed captured data to the information processing device.

Abstract: According to one embodiment, provided is a nonaqueous electrolyte battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes a spinel type lithium-manganese composite oxide and a lithium cobalt oxide, which satisfy formula (1): 0.01?B/(A+B)<0.05. The negative electrode includes a titanium-containing oxide. The nonaqueous electrolyte battery satisfies formula (2): 0.3?C/D 0.8. A is a weight ratio (wt %) of the spinel type lithium-manganese composite oxide. B is a weight ratio (wt %) of the lithium cobalt oxide. C is a pore specific surface area (m2/g) of the positive electrode. D is a pore specific surface area (m2/g) of the negative electrode.

Abstract: According to one embodiment, a transmitting device for a quantum key distribution system includes a light source, a beam splitter, an encoder, and a beam combiner. The light source is configured to generate an optical pulse. The beam splitter is configured to split the optical pulse into a signal pulse that travels through a first path and a polarization control pulse that travels through a second path, the second path being different in an optical path length from the first path. The encoder is provided at the first path and is configured to encode information with respect to the signal pulse. The beam combiner is configured to combine the signal pulse passing through the encoder and the polarization control pulse.

Abstract: According to one embodiment, a radar apparatus includes a signal processing device that has a first circuit, a second circuit and a transmitter. The first circuit is configured to determine whether or not there is a radio interference based on a radio signal received via an antenna. The second circuit is configured to, when the first circuit determines that there is the radio interference, select a predetermined pulse pattern based on an avoiding function of a wireless communication device having the avoiding function of the radio interference, the predetermined pulse pattern being separately defined from a pulse pattern of transmission processing for operating a radar. The transmitter is configured to transmit from the antenna a radio signal matching the pulse pattern selected by the second circuit.

Abstract: An electronic apparatus of an embodiment includes a movable housing, a main housing, a joint, a cable, and a seal structure. The joint includes a connection portion connected to the movable housing, and a fixed portion connected to the main housing. The cable extends from an inside of the movable housing to an inside of the main housing through an inside of the connection portion and an inside of the fixed portion. The seal structure seals between the movable housing and the connection portion, and seals between the main housing and the fixed portions.

Abstract: According to one embodiment, a rotor includes a shaft and a rotor core. A plurality of flux barriers are formed at the rotor core. The flux barrier has a plurality of bridges, and one or more barrier regions. When a width of the bridge of a first flux barrier is defined as wa, a width of the bridge of a second flux barrier is defined as wb, a value obtained by dividing a radius of a smallest circle that is tangent to a central line of the first flux barrier by an outer radius of the rotor core is defined as a, and a value obtained by dividing a radius of a smallest circle that is tangent to a central line of the second flux barrier by the outer radius of the rotor core is defined as b, and when f(x)=(1?x{circumflex over (?)}2){circumflex over (?)}(3/2) and g(x)=(1?x{circumflex over (?)}3), a relationship of f(b)/f(a)?wb/wa?g(b)/g(a) is satisfied.

Abstract: According to a train control device, generally, a train-speed position detector that detects a speed and a position of a train that includes a driving and braking control device for controlling driving and braking. A control-command calculator calculates a positional deviation of the train on the basis of a result of the detection the train-speed position detector, a train-speed estimate being an estimated value of the speed of the train after a certain length of time, a train-position estimate being an estimated value of the position of the train after the certain length of time, and a certain target deceleration pattern for stopping the train at a certain position, and selects a control command for the driving and braking control device on the basis of the calculated positional deviation.

Abstract: A transmitting station includes a common memory, a receiver, a state-change information memory, a state-change table storage, and a state-change detection controller. The common memory includes a plurality of blocks storing therein data that is periodically broadcast by scan transmission among other transmitting stations. The state-change detection controller, when receiving the data from the other transmitting station, reads out from the state-change table storage a state detection word of the block corresponding to the other transmitting station of a transmission source of the relevant received data, and detects a state change of a word that is indicated by the common memory address stored in the state-change information memory in association with a target pointer that is an address pointer of the read-out state detection word.

Abstract: Embodiment of the present disclosure discloses method and device for determining one or more characteristics of currency note. The currency evaluating device is configured to receive image of currency note and detect text from one or more predefined first regions of image. Further, language associated with detected text is identifies and one of single nationality and plurality of nationalities associated with language of currency note is obtained from data source associated with currency evaluating device. When single nationality is obtained, nationality of currency note is identified to be said single nationality. When plurality of nationalities is obtained, nationality of currency note is identified from plurality of nationalities using Optical Character Recognition (OCR). Upon identifying nationality, one or more characteristics of currency note is identified by extracting object features on image based on identified nationality.

Abstract: A semiconductor device includes a substrate: a first nitride semiconductor layer formed on the substrate; a second nitride semiconductor layer formed on the first nitride semiconductor layer and containing a gallium element; a source electrode and a drain electrode formed on the second nitride semiconductor layer and contacting the second nitride semiconductor layer; a third nitride semiconductor layer formed on the second nitride semiconductor layer and containing an indium element and an aluminum element; and a gate electrode formed on the third nitride semiconductor layer and formed between the source electrode and the drain electrode.

Abstract: An inverter control apparatus and a motor drive system includes an inverter main circuit that drives a synchronous motor; an electric-current detector that detects an electric current flowing between the inverter main circuit and the synchronous motor; a command generator that generates an electric-current command value of an output electric current that is output from the inverter main circuit to the synchronous motor, in accordance with a torque command that is supplied externally; and an electric-current controller that generates a voltage command value for the inverter main circuit so that the electric-current command value and a detected electric-current value detected in the electric-current detector are equal to each other. The command generator generates the electric-current command value so that a fundamental wave current that is equal to or greater than a threshold is supplied to the synchronous motor, in driving the inverter main circuit.

Abstract: A nonaqueous electrolyte battery according to one embodiment includes a negative electrode, a positive electrode and a nonaqueous electrolyte. The negative electrode includes a negative electrode active material-containing layer. The negative electrode active material-containing layer contains a negative electrode active material containing an orthorhombic Na-containing niobium titanium composite oxide. The positive electrode includes a positive electrode active material-containing layer. The positive electrode active material-containing layer contains a positive electrode active material. A mass C [g/m2] of the positive electrode active material per unit area of the positive electrode and a mass A [g/m2] of the negative electrode active material per unit area of the negative electrode satisfy the formula (1): 0.95?A/C?1.5.

Abstract: A train position detection apparatus is configured to detect a position of a train by receiving positioning radio waves from satellites through a reception antenna. The train position detection apparatus includes: a memory that stores therein in advance a railway design standard of a railway track on which the train travels; and one or more hardware processors that detect a position of the train by self-contained navigation based on an input signal from a self-contained navigation sensor. When a result of the train position detection based on the positioning radio waves does not satisfy the railway design standard, the one or more hardware processors correct the result of the train position detection based on the positioning radio waves with a result of the position detection by self-contained navigation.

Abstract: A device according to an embodiment including a command generator that generates a current command value; a detector that detects a current value to be outputted from an inverter to an motor; a generator that generates a gate command to the inverter, and obtains an output voltage target vector of the inverter based on the gate command; an estimator that obtains a rotary phase angle estimated value of the motor based on the detected current value and the output voltage target vector; and a polarity determination part that, with supply of a current in synchronism with a rotor frequency of the motor, performs determination of a magnet magnetic pole using a generated magnetic flux or voltage in synchronism with the generated rotor frequency or both of them, and outputs a correction value for the rotary phase angle estimated value based on a result of the determination.

Abstract: A portable electronic device includes a communication unit, a storage unit, a first processing unit, and a second processing unit. The storage unit stores registered biometric information and registered information. The first processing unit acquires biometric information of a humanbeings' biological body, and calculates a verification rate between the biometric information and the registered biometric information. When the verification rate exceeds a first authentication threshold value, the first processing unit transmits success information indicating success of authentication to an external device through the communication unit. The second processing unit acquires input information.

Abstract: According to one embodiment, a rotor includes a shaft and a rotor core fixed to the shaft. A plurality of flux barriers are formed at the rotor core. Each of the flux barriers is formed with a plurality of bridges, and one or more barrier regions that have a lower permeability than a portion other than each of the flux bathers in the rotor core between the plurality of bridges. A permanent magnet is provided in at least one of the barrier regions. A magnetizing direction of the permanent magnet is directed in a direction that intersects a longitudinal direction of the flux barrier. A value of (?0×SM×Br)/(?re×tFB×wB) is within a range between 1.2 and 3.0.

Abstract: According to one embodiment, provided is a nonaqueous electrolyte battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte. The negative electrode contains a negative electrode active material containing orthorhombic Na-containing niobium-titanium composite oxide particles represented by general formula (1) Li2+vNa2?yM1xTi6?y?zNbyM2zO14+?. In general formula (1), M1 is one or two or more elements selected from the group consisting of Cs, K, Sr, Ba, and Ca, M2 is one or two or more elements selected from the group consisting of Zr, Al, Sn, V, Ta, Mo, W, Fe, Co, and Mn, 0?v<2, 0?x<2, 0<y<2, 0?z<3, and ?0.5???0.5. The nonaqueous electrolyte contains an Na component in a range of 10 ppm by mass to 3,000 ppm by mass.