Abstract: It is aimed at providing an optical receiving apparatus and an optical receiving method, which can assuredly receive and process signal lights having different transmission rates, by a simple and single device. To this end, the signal light received by the present optical receiving apparatus is converted into an electric signal by a light receiving element and thereafter sent to an equalizing amplifier whereby the signal is amplified. The transmission rate of this received signal is detected by a transmission rate detecting part, and a band of the equalizing amplifier is optimally controlled by an equalizing band controlling part, corresponding to the detected transmission rate. In case of adopting a PLL (phase-locked loop) circuit as a clock generating circuit, there is also controlled a band of a loop filter corresponding to the transmission rate detected by the transmission rate detecting part.

Abstract: The automated solution injection-discharge system is used as an APDS system to supply and discharge a dialysate and a patient's drain. And an automated solution injection-discharge system provides free of contamination and operation mistakes, and can accurately control the injected dialysate volume and the discharged dwell solution volume even when a patient does not maintain a fixed posture while replacing the solution.

Abstract: The automated solution injection-discharge system is used as an APDS system to supply and discharge a dialysate and a patient's drain. And an automated solution injection-discharge system provides free of contamination and operation mistakes, and can accurately control the injected dialysate volume and the discharged dwell solution volume even when a patient does not maintain a fixed posture while replacing the solution.

Abstract: A measurement apparatus for an optical signal under test includes a closed-loop optical path, an optical mixer in the closed-loop optical path and a photodetector. The optical signal under test and sampling light having a wavelength different from that of the optical signal under test are circulated in the closed-loop optical path. Sum/difference frequency light is generated every time the sampling light passes through the optical mixer. The sum/difference frequency light is detected by the photodetector, which provides a signal representative of the waveform of the optical signal under test.

Abstract: According to a PLL circuit of the present invention, an output of a phase comparator is adjusted according to a space-to-mark transition-probability of an input signal so that an output of a voltage controlled oscillator has a predetermined frequency and phase. Therefore, even when a phase of a timing clock is set other than at 0, an output of the PLL circuit can be kept at the set phase, irrespective of the space-to-mark transition-probability. By using the PLL circuit as such in an optical communication apparatus and an optical communication system, a discrimination point can be kept almost fixed, and therefore, it is possible to lower an error rate.

Abstract: It is aimed at providing an optical receiving apparatus and an optical receiving method, which can assuredly receive and process signal lights having different transmission rates, by a simple and single device. To this end, the signal light received by the present optical receiving apparatus is converted into an electric signal by a light receiving element and thereafter sent to an equalizing amplifier whereby the signal is amplified. The transmission rate of this received signal is detected by a transmission rate detecting part, and a band of the equalizing amplifier is optimally controlled by an equalizing band controlling part, corresponding to the detected transmission rate. In case of adopting a PLL (phase-locked loop) circuit as a clock generating circuit, there is also controlled a band of a loop filter corresponding to the transmission rate detected by the transmission rate detecting part.

Abstract: Water is flowed down into heat transfer tubes from their inlet ports to form flowing water films. The flowing water is evaporated from the flowing water films, thereby cooling combustion air of a gas turbine that flows in the channel. Water vapor generated in the heat transfer tubes is absorbed by an absorber by using an aqueous lithium bromide solution. Water vapor contained in the aqueous solution supplied from the absorber is extracted. The extracted water vapor is condensed to water by a condenser through which cooling water flows. The obtained water is supplied to the water tank. A condensed aqueous solution from which the water vapor has been removed by the generator is supplied to the absorber.

Abstract: The present invention is to provide a method for identifying an optical line easily and accurately regardless of the optical line length. A plurality of reflecting parts is placed on the optical line, and a combination of relative positions of the reflecting parts is changed for every optical line to form an identification code, and the relative positions of the reflecting parts are detected based on reflected lights when a detecting light is inputted to the optical line, so that the optical line is identified based on a result. Concretely, when the detecting light is inputted to one end of the optical line, the light is reflected at the plurality of the reflecting parts which form the identification code and comes back the input end. A combination of the relative positions etc. of the reflecting parts is changed for every optical line.

Abstract: Water is flowed down into heat transfer tubes from their inlet ports to form flowing water films. The flowing water is evaporated from the flowing water films, thereby cooling combustion air of a gas turbine that flows in the channel. Water vapor generated in the heat transfer tubes is absorbed by an absorber by using an aqueous lithium bromide solution. Water vapor contained in the aqueous solution supplied from the absorber is extracted. The extracted water vapor is condensed to water by a condenser through which cooling water flows. The obtained water is supplied to the water tank. A condensed aqueous solution from which the water vapor has been removed by the generator is supplied to the absorber.

Abstract: A latent heat accumulation system having a transfer mechanism comprises a production tank in which water is put in direct contact with an antifreezing liquid which does not combine with the water, has a specific gravity greater than that of the water and is cooled to a preset temperature level, thus producing ice particles, a recovery section, formed at a lower part of the production tank, for recovering the antifreezing liquid descending within the production tank, an upward pipe, connected to the production tank, for guiding upward a two-phase stream of the water and ice particles within the production tank, a transfer pipe, connected to the upward pipe, for transferring the two-phase stream to a specified place, a reservoir tank for storing the two-phase stream transferred via the transfer pipe, a water circulation system for draining the water from the reservoir tank and introducing the drained water into the production tank, and an antifreezing fluid circulation system for cooling the antifreezing fluid

Abstract: The present invention is to provide a method for identifying an optical line easily and accurately regardless of the optical line length. A plurality of reflecting parts is placed on the optical line, and a combination of relative positions of the reflecting parts is changed for every optical line to form an identification code, and the relative positions of the reflecting parts are detected based on reflected lights when a detecting light is inputted to the optical line, so that the optical line is identified based on a result. Concretely, when the detecting light is inputted to one end of the optical line, the light is reflected at the plurality of the reflecting parts which form the identification code and comes back the input end. A combination of the relative positions etc. of the reflecting parts is changed for every optical line.

Abstract: A latent heat accumulation system uses latent heat for air-conditioning. The latent heat accumulation system includes a tank, supplying section, injecting section, drawing section and collecting section. The tank has a liquid storing section for storing Fluorinate (trade name) in the lower portion thereof, storing water which is cooled by ice via a boundary surface with Fluorinate in the middle portion thereof and storing the ice together with the water in the upper portion thereof. The supplying section supplies the water into the liquid storing section. The injecting section injects Fluorinate cooled to a preset temperature into the water stored in the liquid storing section. The drawing section draws out the water which is stored in the liquid storing section and cooled by the ice to the exterior of the tank as an air-conditioning heat accumulation medium. The collecting section collects a mixed fluid of the water and Fluorinate from the lower portion of the liquid storing section.