Abstract: There is provided a method for producing synthesis gas without CO2 emissions. In the method for producing synthesis gas by reforming a hydrocarbon gas, a reforming reaction is caused by supplying a light hydrocarbon gas containing steam and/or carbon dioxide added thereto to a catalyst-filled tube side of a shell-and-tube heat exchanger-type reformer and circulating a heating medium, such as a molten salt, heated by a heat source such as solar heat or nuclear heat in a shell side of the shell-and-tube heat exchanger-type reformer. Carbon dioxide is removed from a produced gas discharged from the tube side and is supplied to the upstream side of the tube side and recycled.

Abstract: An object is to clearly present not only the state of a controlled object but also a control process performed in a control device that controls the controlled object. Display system including a display control device that presents a calculation process performed in a control device for controlling a controlled object, that displays, on a display device, a control block diagram including a control component and a signal line and the state of the controlled object, and that changes the display format of the signal line in the displayed control block diagram according to a signal value transferred via the signal line.

Abstract: There is provided a method for producing synthesis gas without CO2 emissions. In the method for producing synthesis gas by reforming a hydrocarbon gas, a reforming reaction is caused by supplying a light hydrocarbon gas containing steam and/or carbon dioxide added thereto to a catalyst-filled tube side of a shell-and-tube heat exchanger-type reformer and circulating a heating medium, such as a molten salt, heated by a heat source such as solar heat or nuclear heat in a shell side of the shell-and-tube heat exchanger-type reformer. Carbon dioxide is removed from a produced gas discharged from the tube side and is supplied to the upstream side of the tube side and recycled.

Abstract: An object is to clearly present not only the state of a controlled object but also a control process performed in a control device that controls the controlled object. Provided is a display system (1) including a display control device (3) that presents a calculation process performed in a control device (4) for controlling a controlled object, that displays, on a display device (2), a control block diagram including a control component and a signal line and the state of the controlled object, and that changes the display format of the signal line in the displayed control block diagram according to a signal value transferred via the signal line.

Abstract: A scenario creating apparatus which creates a scenario for verifying operation of an information processing system in which a plurality of servers including a database server are connected, includes a collector that collects messages transmitted and received between the plurality of servers, when operation of the information processing system is being verified by a terminal apparatus that performs verification of operation; an association unit that associates the collected messages with each other; a sorter that sorts work models in ascending order of time at which access is made to the database server, the work models each being a group of the associated messages; and a scenario creating unit that creates the scenario on the basis of the sorted work models.

Abstract: A priority control apparatus, includes a job operation information storage unit stores, as job operation information on a per job operation basis for a plurality of job operations, a process and an object used by the process with the process mapped to the object, each job operation being executed by a plurality of processes; a delay determiner determines a first job operation that is delayed from among the plurality of job operations; and a priority controller identifies a second job operation sharing an object used in the first job operation by referencing the job operation information storage unit, identifies a process, using an object not used in the first job operation, from among the processes executing the second job operation identified, and lowers a priority at which the identified process is to be executed.

Abstract: A scenario creating apparatus which creates a scenario for verifying operation of an information processing system in which a plurality of servers including a database server are connected, includes a collector that collects messages transmitted and received between the plurality of servers, when operation of the information processing system is being verified by a terminal apparatus that performs verification of operation; an association unit that associates the collected messages with each other; a sorter that sorts work models in ascending order of time at which access is made to the database server, the work models each being a group of the associated messages; and a scenario creating unit that creates the scenario on the basis of the sorted work models.

Abstract: A noise suppression apparatus is realized by at least one linear prediction analyzing circuit. Each linear prediction analyzing circuit includes: an adaptive filter which produces a linear prediction signal based on a first speech signal on which noise is superimposed, and outputs the linear prediction signal as a second speech signal in which the noise is suppressed; a subtraction unit which obtains a difference between the linear prediction signal and the first speech signal, and outputs the difference as a prediction error; and a coefficient updating unit which updates coefficients of the adaptive filter based on the first speech signal and the prediction error so as to minimize the prediction error. The noise suppression apparatus may includes a cascade connection of a plurality of linear prediction analyzing circuits each having the above construction.

Abstract: In a compressor drive system for a natural gas liquefaction plant including a plurality of gas turbines each provided in an individual refrigeration cycle for pressurizing a different refrigerant, an electric motor is provided for each of the gas turbines so as to serve both as an auxiliary electric motor for generating a startup torque and as an AC generator, and the excess output power of the gas turbine is converted into electric power by this electric motor when the power requirement of the associated compressor is less than the power output of the gas turbine. Additionally, at least two of the gas turbines are of an identical make which is suitable for driving the compressor of one of the associated refrigeration cycles requiring a larger driving power.

Abstract: Provided is a method for liquefying natural gas which can be readily adapted to LNG plants of all sizes without requiring expensive and special heat exchangers. The liquefaction of feed gas of natural gas and recycle natural gas is carried out with a single-component refrigerant or a mixed refrigerant in a high temperature stage, and with a substantially isentropic expansion in a low temperature stage, and a non-liquefied part of the recycle gas after the expansion step is pressurized with a compressor and recycled along with a recycle stream of non-liquefied par of the feed natural gas, the liquefied part by the refrigerant exchanging heat with the non-liquefied part stream produced from the substantially isentropic expansion, in a plate-fin heat exchanger or the like. The compressor is driven by the power obtained by the substantially isentropic expansion.

Abstract: An electric generator operatively connected to a gas turbine is driven by driving the gas turbine with high pressure hydrogen released from a hydrogen storage alloy which is contained in a first zone and which is heated by indirect heat exchange with a heating medium while reabsorbing the hydrogen discharged from the gas turbine in a hydrogen storage alloy which is contained in a second zone and which is cooled by indirect heat exchange with a cooling medium. By switching the flows of the heating and cooling media alternately, an electric energy may be continuously obtained from the electric generator.