Abstract: A turbopump includes: a main shaft rotatably supported; a pump section including an impeller attached to one end of the main shaft; and a turbine section including: a disk attached to the other end of the main shaft, rotor blades provided on an outer periphery of the disk, and nozzles provided inclined to an entrance plane of a blade cascade constituted of the rotor blades, the nozzles having axisymmetric cross sections and arranged in at least two rows along a circumferential direction of the main shaft in a plane orthogonal to the main shaft.

Abstract: An inducer includes a hub and a blade which radially protrudes from the hub and is helically provided. The inducer has a thick portion in which a first distance and a second distance coincides with each other in a region outside a position at which a height ratio of the blade is 0.5 while the first distance is shorter than the second distance in a region inside the position at which the height ratio of the blade is 0.5, in which the height ratio is a ratio of a distance from a connection portion between the hub and a root portion of the blade with respect to a height of the blade which is a distance from the connection portion between the hub and the root portion of the blade to a tip portion of the blade in the radial direction of the blade.

Abstract: A turbopump includes: a main shaft rotatably supported; a pump section including an impeller attached to one end of the main shaft; and a turbine section including: a disk attached to the other end of the main shaft, rotor blades provided on an outer periphery of the disk, and nozzles provided inclined to an entrance plane of a blade cascade constituted of the rotor blades, the nozzles having axisymmetric cross sections and arranged in at least two rows along a circumferential direction of the main shaft in a plane orthogonal to the main shaft.

Abstract: An inducer includes a hub and a blade which radially protrudes from the hub and is helically provided. The inducer has a thick portion in which a first distance and a second distance coincides with each other in a region outside a position at which a height ratio of the blade is 0.5 while the first distance is shorter than the second distance in a region inside the position at which the height ratio of the blade is 0.5, in which the height ratio is a ratio of a distance from a connection portion between the hub and a root portion of the blade with respect to a height of the blade which is a distance from the connection portion between the hub and the root portion of the blade to a tip portion of the blade in the radial direction of the blade.

Abstract: A system comprises: a receiving unit for receiving information of a user; a first notifying unit for notifying the user of a first challenge in a first game apparatus a first output unit for outputting first clear information when a progress result of a game controlled by the first game apparatus becomes the first result relating to the first challenge; a second notifying unit for notifying the user of a second challenge in a second game apparatus; a second output unit for outputting second clear information when a progress result of a game controlled by the second game apparatus becomes the second result relating to the second challenge; and a processing unit for performing predetermined process for determining whether a predetermined process condition is satisfied, and for performing, when the predetermined process condition is satisfied, predetermined process that is not performed when the predetermined process condition is not satisfied.

Abstract: A game system for reliably realizing synchronization of timings at which a common event in a plurality of game machines start. The game system includes a plan management server that measures lapse of system time common in the game system and with the time measurement, updates plan information indicative of remaining time until the system time reaches a process start stage at which a process for the common event starts. Each of the game machines includes an obtaining device to obtain the plan information from the plan management server, a stage determining device to determine whether the system time has reached the process start stage or not on the basis of laps of time of the system time measured in the game machine, and a process executing device to start a process for the common event when it is determined that the system time has reached the process start stage.

Abstract: A game system for reliably realizing synchronization of timings at which a common event in a plurality of game machines start. The game system includes a plan management server that measures lapse of system time common in the game system and with the time measurement, updates plan information indicative of remaining time until the system time reaches a process start stage at which a process for the common event starts. Each of the game machines includes an obtaining device to obtain the plan information from the plan management server, a stage determining device to determine whether the system time has reached the process start stage or not on the basis of laps of time of the system time measured in the game machine, and a process executing device to start a process for the common event when it is determined that the system time has reached the process start stage.

Abstract: The present invention is to be capable of increasing an opportunity for a user to start playing a game apparatus that the user does not often play so as to allow a large number of users to know enjoyment of that game apparatus. The present game system includes two or more game apparatuses, each of which comprises a game progress control unit for controlling progress of a game of which content differs from each other.

Abstract: A first game executer is operable to execute a racing game in which a plurality of racing members compete to each other. A second game executer is operable to execute a training game for training a plurality of trained objects including a first trained object adapted to participate the racing game as one of the racing members and a second trained object which is different from the first trained object. An instruction receiver is adapted to receive a first instruction for causing the second game executer to execute the training game, from a first player associated with the first trained object. A first storage is adapted to store a gaming value owned by the first player. A second storage stores parameter data indicative of a training parameter of each of the trained objects, and adapted to be referred by the first game executer when the racing game is executed.

Abstract: A game device can execute a competition game, in which a plurality of competition candidates compete. A server device is connected with the game device through a communication network. A specific information generating means is disposed in the server device and can generate specific information for specifying at least one of the competition candidates. A transmitting means is disposed in the server device and can transmit the specific information to the game device through the communication network. A receiving means is disposed in the game device and can receive the specific information transmitted. A game proceeding means is disposed in the game device and can execute the competition game on the basis of the specific information received.

Abstract: A game system comprises an the arcade game machine (1) for playing a horse racing simulation game where each player uses a horse he or she trained by themselves, a plurality of player terminals (30) in remote locations, and a Web server (20) connected to the player terminals (30) via the Internet. The Web server manages a horse racing game site on the Internet, where horse races are run in which a number of players can participate by using their own player terminals. The player, after obtaining a password including such data as the performance data of the owned-horse he or she trained in the arcade game machine, accesses the horse racing game site via the player terminal, and can enter his or her owned-horse in the horse races by inputting the password.

Abstract: In a racing game in which a plurality of racing members, each having a member name, participate in a plurality of races taken place therein, a player name which is registered by a game player is assigned to an associated racing member as a part of the member name thereof. When a racing member to which one player name is assigned has a better race record than another racing members have. A special race having a race name is established as one of the plural races, and the one player name is assigned to the special race as a part of the race name thereof.

Abstract: A game system comprises an the arcade game machine (1) for playing a horse racing simulation game where each player uses a horse he or she trained by themselves, a plurality of player terminals (30) in remote locations, and a Web server (20) connected to the player terminals (30) via the Internet. The Web server manages a horse racing game site on the Internet, where horse races are run in which a number of players can participate by using their own player terminals. The player, after obtaining a password including such data as the performance data of the owned-horse he or she trained in the arcade game machine, accesses the horse racing game site via the player terminal, and can enter his or her owned-horse in the horse races by inputting the password.

Abstract: A circular nozzle disposed in front of a propeller of a ship has a leading edge thereof which divided an upper leading edge and a lower leading edge. The upper leading edge approaches progressively the propeller disc toward the lower part thereof, the angle of inclination of the upper leading edge and that of the lower leading edge become different, with the junction part at which the upper and lower leading edges meet being the border, and the junction is positioned in the proximity of a horizontal plane including the axis line of the propeller shaft.