Abstract: A power converter including an inverter for converting electric power output from a power supply, a first power feeding bus connected to the inverter and to the positive side of the power supply, a second power feeding bus connected to the inverter and the negative side of the power supply, and a plurality of connection circuits including a resistant member and a capacitive member which are connected in series, connected between the first power feeding bus and the second power feeding bus, and having at least two or more different impedances.

Abstract: A causal analysis device according to an embodiment includes an extractor, a counter, a calculator, and a generator. The extractor performs extraction from combination data in which an incident and one or a plurality of factors causing the incident are associated with each other in accordance with occurrence of combination data. The counter counts the number of occurrences of the incident or the number of occurrences of a combination of the plurality of factors on the basis of a combination of the incident and the factors included in the extracted combination data. The calculator calculates an index value that corresponds to the combination of the incident and the factors and changes in accordance with the number of occurrences of the combination of the incident and the factors on the basis of a result of the counting of the counter.

Abstract: The present embodiment relates to a CC-MCF capable of generating sufficient mode coupling even with bending or twisting less. The CC-MCF includes two fiber parts having cores mutually directly or indirectly connected, each fiber part having a plurality of cores in which a pair of adjacent cores has a mode-coupling coefficient of 1 (1/m) or more. Each fiber part is provided with a transition section including a fiber end face and a stationary section adjacent to the transition section. In the stationary section, the MFD of each core is substantially constant in a fiber longitudinal direction, and in the transition section, the MFD of each core is continuously expanding from the stationary section to the fiber end face.

Abstract: A body surface temperature measurement device capable of appropriately performing measurement of a body surface temperature of an animal is realized. A body surface temperature measurement device includes a temperature sensing unit including an infrared ray detection sensor and a cover that covers the infrared ray detection sensor, in which the cover closely contacts a body surface of the animal and at least a part of a contact surface of the cover, which contacts the body surface of the animal, is formed into a curved surface that bulges toward a body surface side of the animal.

Abstract: Signal processing apparatus includes: an input interface configured to receive an output signal Va(T) from a sensor; a prediction circuit configured to generate, on the basis of a relationship different depending on each of a plurality of converged values Vc, a plurality of predicted values Vb_T2 corresponding to a value of the output signal that would be obtained at a time T2 after a time T1, in a transition response period before a response time period Tr elapses where Tr denotes a response time period required for a value of the output signal Va(T) to become a converged value Vc corresponding to a value P of a parameter representing a certain property of an object to be measured, in accordance with a value Va_T1 of the output signal obtained at the time T1; and an estimation circuit configured to generate, on the basis of the value Va_T2 of the output signal obtained at the time T2 and the plurality of predicted values Vb_T2, an estimated value Pe of a parameter representing the certain property of the obj

Abstract: The present invention relates to a method and device for measuring optical nonlinearity of an optical fiber to be measured comprising a plurality of cores having mutually coupled waveguide modes. The method includes, at least, preparing a laser light source emitting laser light and a detecting unit determining an optical intensity, inputting laser light into a specific core of the optical fiber to be measured, determining the intensity of a specific wavelength component caused by optical nonlinearity among the reflective light components from the optical fiber to be measured, and determining optical nonlinearity of the optical fiber to be measured on the basis of the intensity of the specific wavelength component.

Abstract: In order to increase the chances of acquiring biological information from a haired living organism, an electrode instrument includes: a belt configured to fit the electrode instrument to a living organism; a projection projecting from the belt; and an electrically conductive cloth disposed on a surface of the projection or in a vicinity thereof to function as a part of an electrode.

Abstract: A state analysis device includes a data classification unit, an analysis unit, and a determination unit. The data classification unit is configured to classify input data for each of a plurality of verification items associated with each of a plurality of control items. The analysis unit is configured to execute analysis associated with each combination of a plurality of control items and a plurality of verification items on the basis of data classified by the data classification unit. The determination unit is configured to comprehensively determine analysis results in units of combinations of the control items and the verification items on the basis of analysis results analyzed by the analysis unit.

Abstract: There are included a first conductivity-type first drift region formed on a first main surface of a substrate, and a first conductivity-type second drift region formed on the first main surface of the substrate, the second drift region formed to be reached to a deeper position of the substrate than a position of the first drift region. There are further included a second conductivity-type well region in contact with the second drift region, a first conductivity-type source region formed to extend in a direction perpendicular to a surface of the well region, and a first conductivity-type drain region separated from the well region, the drain region formed to extend in a direction perpendicular to a surface of the first drift region. Since a flow path of electrons after passing through a channel can be widened, a resistance can be reduced.

Abstract: Provided is a method for producing a multicore optical fiber (MCF) in which variations in positions of cores relative to the outer shape of the MCF are small. The method includes: an integrating step of heating a common cladding tube and a core rods, thereby integrating the tube with the core rods to form a core-cladding composite body including a plurality of cores and a common cladding and having a noncircular cross-sectional shape; an outline detecting step of detecting the outline of the composite body; an optical fiber preform forming step of machining the outer circumferential surface of the composite body using results obtained in the outline detecting step to form the preform having a flat surface; and a drawing step of drawing one end of the preform under heating to obtain the MCF. Also provided is a MCF for which a rotation alignment operation is easily performed.

Abstract: An MCF of the present embodiment has eight or more cores. A diameter of a common cladding is not more than 126 ?m. Optical characteristics of each core are as follows: a TL at a predetermined wavelength of 1310 nm is not more than 0.4 dB/km; an MFD at the predetermined wavelength is from 8.0 ?m to 10.1 ?m; a BL in a BR of not less than 5 mm or in the BR of not less than 3 mm and, less than 5 mm is not more than 0.25 dB/turn at the predetermined wavelength; ?0 is from 1300 nm to 1324 nm; ?cc is not more than 1260 nm; an XT or XTs at the predetermined wavelength is not more than 0.001/km.

Abstract: A semiconductor capacitor includes a semiconductor substrate, an electrode group formed on the semiconductor substrate, and a plurality of insulators sandwiched between the electrode groups to form a plurality of capacitors. At least one of the plurality of capacitors is set to be different from at least one of a tolerance, which is a capability of the capacitors to withstand a prescribed voltage, and a conductance, which is an ease with which a leakage current flows in the capacitors.

Abstract: A signal processing device (100) includes a prediction circuit (20) configured to generate Vb_T2 corresponding to an output signal to be obtained at T2 after T1, in accordance with Va_T1 obtained at the time T1, in a transition response period before Tr or Td elapses, where Tr denotes a time period during which an output signal Va(T) of a sensor (80) changes from a converged value Vc1 corresponding to a parameter P1 representing a certain property of an object to be measured to a converged value Vc2 corresponding to P2, and Td denotes a time period during which Va(T) changes from Vc2 to Vc1. The prediction circuit generates the predicted value so that TrE<Tr, TdE<Td, |1?Td/Tr|>|1 ?TdE/TrE| are satisfied, where TrE denotes a time period during which the predicted value becomes a value corresponding to Vc2, and TdE denotes a time period during which the predicted value becomes a value corresponding to Vc1.

Abstract: An easy-to-fit measuring instrument is provided. A measuring instrument (10) includes: a main wearable unit (1) to be fitted either to a neck of an animal on which measurement is to be made or close to the neck; and an electrode belt (5) including an electrode (6) to be fitted, for measurement of biological information, in such a manner that the electrode is in contact with at least either one of left and right axillae of the animal, wherein the electrode belt has a first end that is connected to the main wearable unit and a second end that is to be connected to the main wearable unit in a location that is closer to a back of the animal than the first end is close to the back of the animal.

Abstract: A drive device wherein a main switching element is connected to a main current path, an input terminal of the switching element on the higher potential side and an output terminal of the switching element on the lower potential side are electrically connected to a control terminal of the main switching element, a first resistance is connected between an input terminal of the switching element on the lower potential side and a control terminal of the main switching element, a first capacitor is parallelly connected to the first resistance, and a second capacitor is connected between a connection point of the first resistance and a control terminal of the main switching element and a terminal on the higher potential side of the main switching element.

Abstract: A semiconductor device includes: a substrate; a drift region formed on a main surface of the substrate; a well region formed in a main surface of the drift region; a source region formed in the well region; a gate groove formed from the main surface of the drift region in a perpendicular direction while being in contact with the source region, the well region, and the drift region; a drain region formed in the main surface of the drift region; a gate electrode formed on a surface of the gate groove with a gate insulating film interposed therebetween; a protection region formed on a surface of the gate insulating film facing the drain region; and a connection region formed in contact with the well region and the protection region.

Abstract: An inductor includes a substrate as a base material, a core portion, a coil portion, an insulating portion formed between conductors of the coil portion, and a terminal portion connecting the core portion and the coil portion to the outside. A main direction of a magnetic field that is generated in accordance with current flowing through the coil portion extends in a planar direction of the substrate. In at least a portion of the coil portion, both width and thickness of a rectangular cross-sectional area of the coil portion are larger than the width of the insulating portion.

Abstract: Provided is a method for producing a multicore optical fiber (MCF) in which variations in positions of cores relative to the outer shape of the MCF are small. The method includes: an integrating step of heating a common cladding tube and a core rods, thereby integrating the tube with the core rods to form a core-cladding composite body including a plurality of cores and a common cladding and having a noncircular cross-sectional shape; an outline detecting step of detecting the outline of the composite body; an optical fiber preform forming step of machining the outer circumferential surface of the composite body using results obtained in the outline detecting step to form the preform having a flat surface; and a drawing step of drawing one end of the preform under heating to obtain the MCF. Also provided is a MCF for which a rotation alignment operation is easily performed.

Abstract: The present embodiment relates to a CMCF including a structure to achieve more efficient reduction in transmission loss by suppressing decrease in concentration of alkali metal due to diffusion of alkali metal. In the CMCF including a plurality of cores, a power coupling coefficient h between adjacent cores is set to 1×10?3/m or more, to maintain an optical coupling state between the adjacent cores. In addition, alkali metal contributing to reduction in transmission loss is added to each of the cores such that a stress maximum value ?_max between adjacent cores has a negative value.

Abstract: A semiconductor capacitor includes a semiconductor substrate, an electrode group formed on the semiconductor substrate, and a plurality of insulators sandwiched between the electrode groups to form a plurality of capacitors. At least one of the plurality of capacitors is set to be different from at least one of a tolerance, which is a capability of the capacitors to withstand a prescribed voltage, and a conductance, which is an ease with which a leakage current flows in the capacitors.