Abstract: A cyclic ester such as lactides and the like is mixed, in an organic solvent, with an alkyl aluminum compound such as trimethyl aluminum, triethyl aluminum and the like, and then, to the resulting mixture, at least one selected from the group consisting of an organic lithium ring-opening polymerization catalyst, an organic sodium ring-opening polymerization catalyst, an organic potassium ring-opening polymerization catalyst, an organic zinc ring-opening polymerization catalyst, an organic magnesium ring-opening polymerization catalyst, an organic tin ring-opening polymerization catalyst, an organic calcium ring-opening polymerization catalyst, an organic titanium ring-opening polymerization catalyst, and an amine ring-opening polymerization catalyst to allow ring-opening polymerization of the cyclic ester, thereby a polyester is obtained.

Abstract: A control device for an internal combustion engine which includes one of the port injection fuel injection valve and the cylinder injection fuel injection valve that serves as a main fuel injection valve, the other of the fuel injection valves that serves as an auxiliary fuel injection valve arranged to be auxiliarily operated in a specified engine driving condition, and which is configured to perform a switching of an injection and a stop of the auxiliary fuel injection valve in accordance with an engine driving condition, the control device includes: the control device being configured to switch the injection and the stop of the auxiliary fuel injection valve in a state where an air-fuel ratio by an injection amount of the fuel by the main fuel injection valve is thicker than a stoichiometric air-fuel ratio.

Abstract: A wireless power transmission system includes a power transmission apparatus, a power reception apparatus, a load driving apparatus, and a power control apparatus. The power control apparatus includes a direct current power supply, a main control circuit, and a communicator. Each time an operation load to be achieved by the load driving apparatus changes, the main control circuit updates a load instruction value for the load driving apparatus and a control parameter for adjusting a voltage of first alternating current power, the control parameter being used by the power transmission apparatus to convert first direct current power into the first alternating current power. The power transmission apparatus includes an inverter circuit and a power transmission control circuit that determines the voltage of the first alternating current power on the basis of the control parameter updated by the power control apparatus and that controls the inverter circuit.

Abstract: A fuel cut during deceleration is executed at time point t1. An oxygen storage amount (rOS) which increases with this fuel cut is estimated based on an exhaust air-fuel ratio and an intake air quantity. When the oxygen storage amount (rOS) reaches a threshold value (at time point t2), a target compression ratio (tCR) is corrected to become lower than a basic target compression ratio (tCR). Although a fuel recovery is executed at time point t4, a combustion temperature is lowered because of the lowering of the mechanical compression ratio, so that a production of NOx in a combustion chamber is suppressed. Therefore, worsening of NOx is suppressed even if the oxygen storage amount (rOS) of exhaust-emission purification catalyst (4) is excessive.

Abstract: A coil structure includes a conductor band and a first insulating plate. The conductor band turns around a coil axis in such a manner that the conductor band folds at a plurality of portions which form a plurality of folded portions. The first insulating plate includes a first edge portion which abuts along at least one of the plurality of folded portions. At least part of the conductor band is wound around the first insulating plate.

Abstract: This pelletizer apparatus includes an observation unit for observing, from the outside of a housing chamber, a cut section of a synthetic resin cut by cutting teeth inside the housing chamber. The observation unit includes an optical system which sends an optical image of the cut section from the inside of the housing chamber to the outside of the housing chamber. Thus, with this pelletizer apparatus, the cut section can be visually checked clearly via the optical system.

Abstract: Provided are a communication system, a communication device, a communication method, and a recording medium which enable data to be communicated more efficiently according to the change of the degree of link congestion. This communication device performs data communication with another communication device via a wireless base station, and is provided with: a wireless information collection means for collecting wireless information relating to wireless communication of the other communication device; a congestion degree assessment means for assessing a congestion degree of a wireless link from the collected wireless information; and a schedule determination means for determining the schedule of the data communication with the other communication device on the basis of the assessed congestion degree.

Abstract: An organic compound with characteristics excelling in hole-injecting/transporting performance and having an electron blocking ability, a highly stable thin-film state, and excellent heat resistance is provided as material for an organic electroluminescent device of high efficiency and high durability, and the organic electroluminescent device of high efficiency and high durability is provided using this compound. The compound of a general formula (Chemical Formula 1) having a substituted acridan ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes and one or more organic layers sandwiched between the pair of electrodes.

Abstract: A relay apparatus in a wireless power transmission system includes a relay power reception antenna that receives power transmission alternating current power from a power transmission power transmission antenna, a relay rectifier that converts the power transmission alternating current power into relay direct current power, a relay inverter circuit that converts the relay direct current power into relay alternating current power, and a relay power transmission antenna that wirelessly transmits the relay alternating current power. When the relay apparatus has received binary relay received data, the relay apparatus reverses a sign of the binary relay received data and eliminates a difference between a first voltage of the relay direct current power and a second voltage of the relay direct current power on the basis of the reversed binary relay received data.

Abstract: A control device for a vehicle including a variable compression ratio mechanism arranged to vary an engine compression ratio of an internal combustion engine, and a torque converter which includes a lock-up mechanism, and which is disposed between the internal combustion engine and a transmission, has a controller configured to switch the engine compression ratio from a high compression ratio to a low compression ratio, and to switch the lock-up mechanism from a lock-up OFF state to a lock-up ON state. When the controller is switching the engine compression ratio from the high compression ratio to the low compression ratio, the controller starts switching the lock-up mechanism to the lock-up ON state when a current engine compression ratio is equal to or smaller than a permissible compression ratio which is between the high compression ratio and the low compression ratio.

Abstract: A relay apparatus in a wireless power transmission system includes a relay power reception antenna that receives power transmission alternating current power from a power transmission power transmission antenna, a relay rectifier that converts the power transmission alternating current power into relay direct current power, a relay inverter circuit that converts the relay direct current power into relay alternating current power, and a relay power transmission antenna that wirelessly transmits the relay alternating current power. When transmitting data to the power transmission apparatus through amplitude modulation, the relay apparatus varies amplitude of voltage of the power transmission alternating current power received by the relay power reception antenna between a first amplitude and a second amplitude and performs control for eliminating a difference between a third amplitude of the relay alternating current power and a fourth amplitude of the relay alternating current power.

Abstract: A polarizing plate having an excellent optical property and a method of manufacturing the same. The polarizing plate includes: a transparent substrate transmitting light in a used bandwidth; an absorbing layer having at least a metal-containing semiconductor layer containing a metal, the absorbing layer being arranged as a one-dimensional lattice shaped wire-grid structure having a pitch smaller than the wavelength of the light in the used bandwidth; a dielectric layer arranged as a one-dimensional lattice shaped wire-grid structure having a pitch smaller than the wavelength of light in the used bandwidth; and a reflective layer arranged as a one-dimensional lattice shaped wire-grid structure having a pitch smaller than the wavelength of light in the used bandwidth, wherein the absorbing layer, the dielectric layer and the reflective layer are layered on the transparent substrate in this or reversed order.

Abstract: Provided is a resin pelletizer device capable of monitoring cavitation. A resin pelletizer device (100) includes a die (6) including a die surface (61) in which die holes (63) are formed, rotary blades (21) that rotate on the die surface (61) in the water, thereby cutting resin extruded from the die holes (63) in the water into a pellet form, a sensor (150) that detects an elastic wave generated during the rotation of the rotary blades (21) on the die surface (61), and a determination unit (121) that monitors an output value of the sensor (150), and determines that cavitation occurs when the output value of the sensor (150) becomes less than a predetermined threshold.

Abstract: A power conversion device includes a first detection circuit that acquires input information about an AC voltage and/or an alternating current which are inputted to the power conversion device from an AC power supply, a rectifier circuit, an inverter circuit including a switch, and a control circuit that generates a pulse signal for the switch while the control circuit (A) determines, based on the input information, whether the rectifier circuit is in a state in which the rectifier circuit allows switching noise to propagate from the switch to the AC power supply and (B) changes a frequency of the pulse signal with time at least in a period in which the rectifier circuit is in the state.

Abstract: An electrodynamic apparatus includes a first arm extending in a first direction, a second arm supported by the first arm, and a first linear actuator that is provided in the first arm or the second arm and moves the second arm along the first direction with respect to the first arm. The first arm includes a first power transmission antenna. The second arm includes a first power reception antenna. The first power transmission antenna supplies electric power to the first power reception antenna wirelessly. The first power reception antenna supplies the supplied electric power to a load electrically connected to the first power reception antenna.

Abstract: An electrodynamic apparatus includes a first arm extending in a first direction, a second arm supported by the first arm, a linear actuator that moves the second arm along the first direction with respect to the first arm, a support extending in a second direction that is different from the first direction and supporting the first arm, and a rotating mechanism that rotates the support about an axis of rotation parallel to the second direction. The first arm includes a power transmission antenna. The second arm includes a power reception antenna. The power transmission antenna supplies electric power to the power reception antenna wirelessly. In rotating the support, the linear actuator moves the center of gravity of the second arm to the axis of rotation first, and then the rotating mechanism rotates the support.

Abstract: A kneader internal inspection device according to the present invention suspends and supports a photographing unit, which is arranged in an interior of a kneader and which photographs the interior, so as to be vertically movable in the interior of the kneader. Therefore, such a kneader internal inspection device is capable of easily inspecting the interior of the kneader.

Abstract: A system for detecting an abnormality of rotating machines includes two or more devices for detecting an abnormality and a computer. The respective devices include a sensor for detecting vibration of the respective rotating machines and generating signals indicative of the vibration, and a transmitting unit for transmitting the signals to the computer. The computer includes a sampler for sampling the signals with a sampling frequency and outputting, at a time at intervals of a predetermined period, a plurality of the data detected and sampled within the predetermined period, a storage for storing the data, a frequency analyzer for analyzing the frequencies of the data, a determination unit for determining whether the machines have an abnormality based on the results of the frequency analysis, and a display unit for displaying, in chronological order and in real time, the results of the frequency analysis and displaying the results of the determination.

Abstract: A rotating machine abnormality detection device and a rotating machine abnormality detection method according to the present invention are designed to detect an abnormality in a rotating machine including a rotary member rotatable about a predetermined axis, and detect an initial abnormality in the rotating machine based on first measurement data obtained by measuring a vibration in an ultrasonic wave band caused by the rotary member. A rotating machine according to the present invention includes the rotating machine abnormality detection device.

Abstract: Provided is a device for detecting a malfunction of a rotating machine, the device being able to early detect the malfunction and to have a reduced size. The device includes a detecting unit for detecting vibration of the machine, sampling a signal indicative of the vibration with a predetermined sampling frequency, and outputting, at a time at intervals of a predetermined period, a plurality of the sampled data detected within the predetermined period, a storage for storing the plurality of the sampled data, a frequency analyzer for analyzing the frequency of the plurality of the sampled data, a determination unit for performing a primary determination based on the result of the analysis, a display unit for displaying the result of the analysis in chronological order and in real time, and a communication unit for transmitting the plurality of the sampled data to an information-processing device for performing a secondary determination.