Abstract: A receiving circuit includes: a detector configured to detect a position at which logics of first data and second data acquired by sampling received data using two clocks having mutually-different phases do not match each other as an edge; and an adjustment circuit configured to perform an adjustment causing an internal clock frequency to be close to a data frequency in the received data based on a first probability that logics of third data in a next cycle of the first data and the second data match each other and a second probability that logics of fourth data in a next cycle of the second data and the third data match each other.

Abstract: A distortion compensation apparatus including: an amplifier configured to amplify an input signal including a transmission signal and an impulse signal, the transmission signal being converted to a radio frequency signal for transmission, the impulse signal being not converted to a radio signal for transmission, a memory configured to store a plurality of distortion compensation coefficients for compensating distortion to the input signal, each of the plurality of distortion compensation coefficients being associated with an amplitude of the input signal, and a processor configured to select a distortion compensation coefficient from the plurality of distortion compensation coefficients based on an amplitude of the impulse signal included in the input signal, and update the selected distortion compensation coefficient based on the amplified impulse signal include in the amplified input signal.

Abstract: An object of the present invention is to reduce costs while maintaining safety in exhausting hydrogen sulfide gas. In exhaust facilities of a plant for manufacturing hydrogen sulfide gas, the concentrations of hydrogen sulfide gas leaking from a reaction facility, a cooling facility, and a sulfur removal facility, respectively, are measured by a measuring apparatus, and when a detected concentration is less than a predetermined concentration, a valve is controlled to exhaust hydrogen sulfide gas from a first exhaust pipe into the air, on the contrary, when a detected concentration is not less than a predetermined concentration, the valve is controlled to exhaust hydrogen sulfide gas from a second exhaust pipe to a gas treatment facility.

Abstract: A distortion compensation apparatus including: a memory configured to store a plurality of distortion compensation coefficients for compensating distortion to an input signal amplified by an amplifier, each of the plurality of distortion compensation coefficients being associated with a different combination of two addresses, and a processor configured to receive temperature information associated with a temperature of the amplifier, generate a first address based on the input signal at a first time, generate a second address based on an average of the input signal during a previous period preceding the first time, the average being calculated based on the temperature information, select a distortion compensation coefficient from the plurality of distortion compensation coefficients based on the first address and the second address, and compensate distortion to the input signal based on the selected distortion compensation coefficient.

Abstract: An object is to provide a hydrogen sulfide gas production plant that can recover discharged waste hydrogen sulfide gas and efficiently supply the gas to a process plant where processing is conducted by using hydrogen sulfide gas, and also provide a method for recovering and using the waste hydrogen sulfide gas by the hydrogen sulfide gas production plant. In the present invention, the hydrogen sulfide gas production plant is provided with a pipe that recovers the waste hydrogen sulfide gas discharged from the hydrogen sulfide gas production plant and that has one end connected to the process plant where the hydrogen sulfide gas is used, and the discharged waste hydrogen sulfide gas is recovered and the recovered waste hydrogen sulfide gas is supplied to the process plant through the pipe.

Abstract: A wireless transmission device includes an amplifier that amplifies power of a wireless transmission signal, a table that stores a plurality of distortion compensation coefficients used for compensating non-linear distortion of the amplifier, and a control unit that alternately performs reading of one distortion compensation coefficient and writing of one distortion compensation coefficient adjusted based on a feedback signal from the amplifier, by using any one port of the table at the time of update of any distortion compensation coefficient out of the plurality of distortion compensation coefficients stored in the table.

Abstract: A hydrostatic tower whose lower part communicates with a liquid phase space within a flash vessel, and whose upper part communicates with a gas phase space within the flash vessel is provided. A rising liquid level within the hydrostatic tower is detected by at least one maximum liquid level sensor provided at a position at the same level as a predetermined maximum liquid level within the liquid phase space. A dropping liquid level within the hydrostatic tower is detected by at least one minimum liquid level sensor provided at a position at the same level as a predetermined minimum liquid level within the liquid phase space.

Abstract: A radio device is configured to be capable of performing upsampling on a forward wave containing a first signal and a second signal to broaden a processing band to a transmission band, then amplifying the forward wave using an amplifier, and transmitting the amplified forward wave. In the radio device, an FW power calculator calculates the power of a first component corresponding to a part of the transmission band from among the forward wave. An Rev power calculator calculates the power of a second component corresponding to a part of the transmission band from among a reflected wave. A VSWR calculator calculates a VSWR using the power of the forward wave calculated by the FW power calculator and the power of the reflected wave calculated by the Rev power calculator.

Abstract: A distortion compensation device compensates a non-linear distortion of a power amplifier included in a wireless communication apparatus that employs the power amplifier to amplify a transmission signal and that transmits the amplified transmission signal. The distortion compensation device includes a bit adjusting unit that, when a width of a distribution of a first parameter among a plurality of calculated parameters is equal to or smaller than a predetermined level, adjusts a bit number of a first address corresponding to the first parameter to be a value obtained by decreasing a first reference bit number and adjusts a bit number of a second address corresponding to a second parameter other than the first parameter to be a value obtained by increasing a second reference bit number.

Abstract: A distortion compensation device compensates a non-linear distortion of a power amplifier included in a wireless communication apparatus that employs the power amplifier to amplify a transmission signal and that transmits the amplified transmission signal. The distortion compensation device includes a bit adjusting unit that, when a width of a distribution of a first parameter among a plurality of calculated parameters is equal to or smaller than a predetermined level, adjusts a bit number of a first address corresponding to the first parameter to be a value obtained by decreasing a first reference bit number and adjusts a bit number of a second address corresponding to a second parameter other than the first parameter to be a value obtained by increasing a second reference bit number.

Abstract: A distortion compensation apparatus includes: a storage unit that stores a distortion compensation coefficient; a distortion-compensation-coefficient selecting unit that takes a logarithm of power of an input signal and exponentiates a value obtained by taking the logarithm, and that selects a distortion compensation coefficient that is stored in the storage unit according to a value obtained by the exponentiating; a distortion-compensation processing unit that acquires the selected distortion compensation coefficient from the storage unit, and that performs distortion compensation processing on the input signal to the distortion-compensation-coefficient selecting unit using the acquired distortion compensation coefficient; an amplifier that amplifies the signal subjected to the distortion compensation processing; and a distortion-compensation-coefficient updating unit that updates the distortion compensation coefficient stored in the storage unit based on the amplified signal and the input signal to the dist

Abstract: The present invention allows low-concentration hydrogen sulfide gas to be recovered and supplied to a processing plant that uses hydrogen sulfide gas. The hydrogen sulfide gas production plant is provided with a first supply pipe that supplies hydrogen sulfide gas obtained from a sulfur recovery facility to a processing plant, and a second supply pipe that is branched at a predetermined point in the first supply pipe and supplies the hydrogen sulfide gas from the sulfur recovery facility to the processing plant. The first supply pipe has a concentration meter that is provided on the upstream side than the branch point and measures the concentration of the hydrogen sulfide gas. The first supply pipe and the second supply pipe have ON/OFF valves that are provided on the downstream side of the branch point and perform ON/OFF control of the supply to the processing plant through the supply pipe.

Abstract: A retainer is equipped with a regulation segment, which regulates the position of an O-ring placed in an insertion hole, and a prevention segment, which engages with a spool of a pipe and prevents the pipe from being removed from the insertion hole. Moreover, by moving the retainer toward the minus side in the Y direction and attaching it to an attachment segment, the retainer becomes sandwiched between an opposing wall portion and a tube segment in the X direction. Because of this, the number of parts can be reduced and the retainer that regulates the position of the O-ring can be prevented from being moved in the X direction by the pressure of fluid flowing inside the pipe connector in the X direction.

Abstract: A hydrometallurgical plant according to the invention includes: a leaching facility provided with leaching treatment tanks in a plurality of lines to perform a leaching treatment; a preliminary neutralization facility provided with neutralization treatment tanks in two stages to perform pH adjustment of leach slurry; and solid-liquid separation facility made up of a single line to perform solid-liquid separation of leach slurry which is pH-adjusted and discharged from the preliminary neutralization facility, in which the preliminary neutralization facility is provided with neutralization treatment tanks of a first stage in a plurality of lines so as to correspond to the respective leaching treatment tanks, and is configured such that leach slurries which are pH-adjusted in the neutralization treatment tanks of the first stage are merged in a neutralization treatment tank 1 of a second stage made up of a single line, and merged leach slurry is transported to the solid-liquid separation facility.

Abstract: An object of the present invention is to reduce costs while maintaining safety in exhausting hydrogen sulfide gas. In exhaust facilities of a plant for manufacturing hydrogen sulfide gas, the concentrations of hydrogen sulfide gas leaking from a reaction facility, a cooling facility, and a sulfur removal facility, respectively, are measured by a measuring apparatus, and when a detected concentration is less than a predetermined concentration, a valve is controlled to exhaust hydrogen sulfide gas from a first exhaust pipe into the air, on the contrary, when a detected concentration is not less than a predetermined concentration, the valve is controlled to exhaust hydrogen sulfide gas from a second exhaust pipe to a gas treatment facility.

Abstract: A distortion compensation apparatus including: a processor configured to generate a pre-distortion signal by compensating an input signal for a distortion based on a distortion compensation coefficient and a plurality of delayed signals obtained by delaying the input signal by a plurality of amounts of delay, and an amplifier configured to generate an amplified signal by amplifying the pre-distortion signal, wherein the processor calculates the distortion compensation coefficient based on the input signal, the pre-distortion signal, and the amplified signal, and calculates the plurality of amounts of delay based on the amplified signal.

Abstract: The present invention makes it possible that, at the time of start-up of a dezincification plant used in a dezincification step in a hydrometallurgical method for nickel, a decrease in the throughput in the dezincification plant is controlled to prevent a decrease in production volume, and moreover, an excellent cake layer is formed on a filter cloth provided to a filter device inside the dezincification plant, whereby efficient filtration is performed. When, upon start-up of the dezincification plant, a slurry containing a formed zinc sulfide is supplied to a filter for filtration and separation, an adjustment is performed in such a manner that the flow rate of the slurry is increased in stages to reach a target flow rate in a time T2 which satisfies the following relational expression (i), where T1 represents the time between starting a slurry supply and attaining the target flow rate in the case of transferring the slurry at the maximum liquid transfer capacity of a pump configured to transfer the slurry.

Abstract: A radio device is configured to be capable of performing upsampling on a forward wave containing a first signal and a second signal to broaden a processing band to a transmission band, then amplifying the forward wave using an amplifier, and transmitting the amplified forward wave. In the radio device, an FW power calculator calculates the power of a first component corresponding to a part of the transmission band from among the forward wave. An Rev power calculator calculates the power of a second component corresponding to a part of the transmission band from among a reflected wave. A VSWR calculator calculates a VSWR using the power of the forward wave calculated by the FW power calculator and the power of the reflected wave calculated by the Rev power calculator.

Abstract: A delay quantity estimation apparatus comprises a first correlation value arithmetic unit to calculate a first correlation value as a correlation value between a first input signal and a feedback signal delayed with a first delay value; a second correlation value arithmetic unit to calculate a second correlation value as a correlation value between the first input signal and a feedback signal delayed with a second delay value; and a delay quantity estimation unit to estimate a delay quantity of the feedback signal with respect to the input signal on the basis of the first difference value as a difference between the first correlation value and the second correlation value, wherein the second delay value is a value given by adding a certain value to the first delay value.

Abstract: In a distortion compensating unit, a threshold calculating unit calculates a clip threshold to be set in an adjusting unit based on an address value generated by an address generating circuit. For example, the threshold calculating unit calculates the clip threshold by identifying the maximum value of address values generated by the address generating circuit in each adjustment unit period and subtracting a certain offset value from the identified maximum value. The adjusting unit adjusts a distortion compensation coefficient based on an address value received from the address generating circuit and a magnitude relationship with the set clip threshold.