Abstract: A battery measurement device that measures a state of a secondary battery includes: a signal control section that causes an alternating-current signal to be outputted from the secondary battery or inputs an alternating-current signal to the secondary battery; a current measurement section that measures the alternating-current signal; a response signal measurement section that measures a response signal of the secondary battery responsive to the alternating-current signal; and a calculation section that calculates information regarding a complex impedance of the secondary battery based on measurement results of the alternating-current signal measured by the current measurement section and the response signal measured by the response signal measurement section.

Abstract: In a battery measurement apparatus, a current controller sets a predetermined wavenumber of each of first and second alternating signals, and determines whether an input or an output of the predetermined wavenumber of one of the first and second alternating signals to or from a rechargeable battery has completed. The current controller switches, in response to determination that the input or output of the predetermined wavenumber of one of the first and second alternating signals to or from the rechargeable battery has completed, the completed one of the first and second alternating signals to a new alternating signal having another frequency while continuing the input or output of the other of the first and second alternating signals to or from the rechargeable battery.

Abstract: A battery measurement device for measuring a state of a rechargeable battery, includes a signal control unit provided on a first electrical path connecting a positive electrode and a negative electrode of the rechargeable battery and configured to cause the rechargeable battery to output a predefined AC signal or to input a predefined AC signal to the rechargeable battery, a voltage measurement unit provided on a second electrical path connecting the positive electrode and the negative electrode of the rechargeable battery and configured to receive, via the second electrical path, voltage variations of the rechargeable battery in response to the AC signal, a calculation unit configured to calculate information on a complex impedance based on the voltage variations, and a determination unit configured to determine an abnormality and a precursory sign of an abnormality in the second electrical path based on the information on the complex impedance.

Abstract: A battery measurement apparatus connected to a battery module in which a plurality of storage batteries are combined, includes: a measurement unit that measures a battery state of at least each of the storage batteries; and a determination unit that determines whether replacement of any one of the storage batteries has occurred based on the battery state. The determination unit determines that replacement of a storage battery has occurred in the case where a parameter indicating the battery state of any one of the storage batteries that constitute the battery module is determined to be out of a predetermined range and a parameter indicating the battery state of other storage batteries or other battery modules are also determined to be out of a predetermined range.

Abstract: Disclosed is a sintered magnet which is a rare-earth magnet using a less amount of a rare-earth element but having a higher maximum energy product and a higher coercivity. The sintered magnet includes a NdFeB crystal; and an FeCo crystal adjacent to the NdFeB crystal through the medium of a grain boundary. The FeCo crystal includes a core and a periphery and has a cobalt concentration decreasing from the core to the periphery. The FeCo crystal has a difference in cobalt concentration of 2 atomic percent or more between the core and the periphery. In the NdFeB crystal, cobalt and a heavy rare-earth element are unevenly distributed and enriched in the vicinity of the grain boundary.

Abstract: Disclosed is a sintered magnet which is a rare-earth magnet using a less amount of a rare-earth element but having a higher maximum energy product and a higher coercivity. The sintered magnet includes a NdFeB crystal; and an FeCo crystal adjacent to the NdFeB crystal through the medium of a grain boundary. The FeCo crystal includes a core and a periphery and has a cobalt concentration decreasing from the core to the periphery. The FeCo crystal has a difference in cobalt concentration of 2 atomic percent or more between the core and the periphery. In the NdFeB crystal, cobalt and a heavy rare-earth element are unevenly distributed and enriched in the vicinity of the grain boundary.

Abstract: The storage case has a structure in which a sample storage case (S) contained in a storage case is cooled and held at a low temperature by a Stirling refrigerator. A detection element is disposed in a room-temperature area of the storage case. The chemical or physical property of the detection element varies when a contaminant adheres to the detection element. Entrance of a contaminant into the storage case can be checked by contactlessly checking the detection element from the outside of the storage case. The storage case includes a server for receiving the result of the check from the detection device, storing the result, and setting up connection via a communication line to at least two out of a terminal operable by the forwarder, a terminal operable by the carrier, and a terminal operable by the recipient to transmit the result to the two.

Abstract: An NMR measurement apparatus adopts a circulation flow scheme using a sample solution containing a high molecular compound representing a measuring object and a low molecular compound solution containing a low molecular compound representing a ligand. The measurement apparatus comprises a mixing filter 32 for mixing the sample solution and the low molecular compound solution, a separation filter 34 for performing separation therebetween, a flow channel 1 through which the sample solution drained out of the separation filter 34 is injected to the mixing filter 32, a flow channel 2 through which the low molecular compound solution drained out of the separation filter 34 is injected to the mixing filter 32, and a flow channel 3 through which the mixture solution drained out of the mixing filter 32 is injected to the separation filter 34 by way of a reservoir 10.

Abstract: An apparatus for nuclear magnetic resonance measurement includes a measurement portion having a magnet for applying a magnetic field to a sample, a bore within the magnet, a nuclear magnetic resonance probe disposed in the bore, and a container for retaining the sample therein; a mixing filter portion for mixing a small molecule solution with a sample solution; a separating filter portion; a small molecule concentration controlling portion; a transmitter/receiver system; a unit for carrying out circulation solution transfer; a unit for injecting the small molecule solution; a unit for controlling the small molecule concentration; a unit for injecting the sample solution; a unit for holding the sample solution in the measurement portion; a unit for discharging the sample solution; and a unit for carrying out nuclear magnetic resonance measurement of the sample solution.

Abstract: An NMR measurement apparatus adopts a circulation flow scheme using a sample solution containing a high molecular compound representing a measuring object and a low molecular compound solution containing a low molecular compound representing a ligand. The measurement apparatus comprises a mixing filter 32 for mixing the sample solution and the low molecular compound solution, a separation filter 34 for performing separation therebetween, a flow channel 1 through which the sample solution drained out of the separation filter 34 is injected to the mixing filter 32, a flow channel 2 through which the low molecular compound solution drained out of the separation filter 34 is injected to the mixing filter 32, and a flow channel 3 through which the mixture solution drained out of the mixing filter 32 is injected to the separation filter 34 by way of a reservoir 10.

Abstract: An apparatus for nuclear magnetic resonance measurement includes a measurement portion having a magnet for applying a magnetic field to a sample, a bore within the magnet, a nuclear magnetic resonance probe disposed in the bore, and a container for retaining the sample therein; a mixing filter portion for mixing a small molecule solution with a sample solution; a separating filter portion; a small molecule concentration controlling portion; a transmitter/receiver system; a unit for carrying out circulation solution transfer; a unit for injecting the small molecule solution; a unit for controlling the small molecule concentration; a unit for injecting the sample solution; a unit for holding the sample solution in the measurement portion; a unit for discharging the sample solution; and a unit for carrying out nuclear magnetic resonance measurement of the sample solution.

Abstract: The present invention makes it possible to measure a plurality of samples under a certain concentration condition of the small molecule by the circulation transfer of a small molecule solution through a small molecule concentration control portion for injecting, discharging or feeding the small molecule solution, a mixing filter portion for mixing a solution (sample) containing the large molecule sample with the small molecule solution, a container set in a nuclear magnetic resonance probe, a separating filter portion for separating the mixture into the sample and the small molecule solution, and the small molecule concentration control portion; injecting the sample from the mixing filter portion; holding the sample in a measurement portion in the container; and discharging the sample from the separating filter portion after completion of the NMR measurement.

Abstract: A sample tube is used to ensure uniformity in a static magnetic field and uniformity in electromagnetic wave irradiation for NMR measurement for continuous sample injection. The sample tube is formed of a signal detecting tube having a length lying between 80% and 100% of the length of an antenna, the signal detecting tube accommodating a sample at the position of the antenna; first and second joint tubes each having an outside diameter equal to the outside diameter of the signal detecting tube and having an inside diameter smaller than the inside diameter of the signal detecting tube; and injection and ejection supporting tubes each having an inside diameter smaller than the inside diameter of the signal detecting tube. The first and second joint tubes have magnetic susceptibility matched to or brought close to that of a sample solvent.

Abstract: Briefly, the present invention provides an apparatus and a method for performing a nuclear magnetic resonance (NMR) measurement on a sample solution containing small molecules and large molecules such as proteins, and provides an apparatus and a method for repeatedly performing the NMR measurement while stably controlling concentration conditions in a sample and changing a concentration of small molecules. A sample solution containing small molecules and large molecules is circularly transferred between a vessel equipped with a nuclear magnetic resonance probe and a control section in which injection and filtration of small molecules are performed.

Abstract: The present invention makes it possible to measure a plurality of samples under a certain concentration condition of the small molecule by the circulation transfer of a small molecule solution through a small molecule concentration control portion for injecting, discharging or feeding the small molecule solution, a mixing filter portion for mixing a solution (sample) containing the large molecule sample with the small molecule solution, a container set in a nuclear magnetic resonance probe, a separating filter portion for separating the mixture into the sample and the small molecule solution, and the small molecule concentration control portion; injecting the sample from the mixing filter portion; holding the sample in a measurement portion in the container; and discharging the sample from the separating filter portion after completion of the NMR measurement.

Abstract: Briefly, the present invention provides an apparatus and a method for performing a nuclear magnetic resonance (NMR) measurement on a sample solution containing small molecules and large molecules such as proteins, and provides an apparatus and a method for repeatedly performing the NMR measurement while stably controlling concentration conditions in a sample and changing a concentration of small molecules. A sample solution containing small molecules and large molecules is circularly transferred between a vessel equipped with a nuclear magnetic resonance probe and a control section in which injection and filtration of small molecules are performed.

Abstract: An object of the present invention is to provide a method of controlling and observing binding of sample substances in an aqueous solution. An apparatus of the present invention has a unit applying a strong magnetic field to a sample and an oscillator applying an electromagnetic wave in a THz field onto the sample. A probe and an observing unit which can bring about nuclear magnetic resonance in the sample and detect it are arranged. An electric signal is sent to a THz-ray oscillator to apply an electromagnetic wave having a resonance frequency of unpaired electron spin of the sample onto the sample. An electric characteristic of the nuclear magnetic resonance is detected to observe a binding change in the sample.

Abstract: An object of the present invention is to provide a method of controlling and observing binding of sample substances in an aqueous solution. An apparatus of the present invention has a unit applying a strong magnetic field to a sample and an oscillator applying an electromagnetic wave in a THz field onto the sample. A probe and an observing unit which can bring about nuclear magnetic resonance in the sample and detect it are arranged. An electric signal is sent to a THz-ray oscillator to apply an electromagnetic wave having a resonance frequency of unpaired electron spin of the sample onto the sample. An electric characteristic of the nuclear magnetic resonance is detected to observe a binding change in the sample.

Abstract: The number of present updating data is detected from an updating bit map of a backup target medium. When it is equal to or larger than a reference value, a whole backup is executed. When it is smaller than the reference value, a differential backup is executed. After the backup was obtained, a copy coupling is executed and a merge process to reduce the number of media is performed. By eliminating the unnecessary media among the media which are used and by executing the successive reading or parallel reading from backup destination media, a decoding process to a recovery medium can be executed in a shortest time.

Abstract: A device for switching the flow direction of a fluid includes a main body having an inlet to be connected with a fluid supply source and an exit to be connected with a fluid flow destination, each disposed on the primary side of the main body, and a first exit/inlet and a second exit/inlet to be connected with an apparatus using the fluid, each disposed on the secondary side of the main body. The device further includes a selector rotatably disposed in the main body around a rotational shaft. The selector has a plurality of flow channels or spaces each partitioned by a partition plate of a thickness smaller than the diameter of each of the ports of the main body so that the inlet and the exit can be selectively in communication with the first exit/inlet and the second exit/inlet respectively during rotation of the selector.