Abstract: Training system including: a training machine including: a Magnet Rheological fluid (MR-fluid) load generating unit generating a load to be exerted on the trainee, by using an MR-fluid having a variable viscosity depending on a magnetic field strength; mechanical arrangements; a displacement detection sensor; a power-assisting motor; a storage unit configure to store MR-fluid load characteristic information on a relationship between a current through the MR-fluid load generating unit and the load generated by the MR-fluid load generating unit; and chain and sprocket arrangements.

Abstract: Training system including: a training machine including: a Magnet Rheological fluid (MR-fluid) load generating unit generating a load to be exerted on the trainee, by using an MR-fluid having a variable viscosity depending on a magnetic field strength; mechanical arrangements; a displacement detection sensor; a power-assisting motor; a storage unit configure to store MR-fluid load characteristic information on a relationship between a current through the MR-fluid load generating unit and the load generated by the MR-fluid load generating unit; and chain and sprocket arrangements.

Abstract: A training system for training of part of a trainee's body includes a training machine, a control device controlling the training machine, and a display unit displaying a game screen. The training machine imposes a load on the trainee, with an MR-fluid load generating unit using MR fluid, which has viscosity varying with a magnetic field strength. The load is calculated on the basis of a target load and a relationship between the current in the MR-fluid load generating unit and the load generated by the MR-fluid load generating unit. The control device produces the game screen in correspondence with the trainee's training motion detected by a displacement detection sensor, and makes the display unit display the game screen, while controlling the load in the training machine.

Abstract: A training system for training of part of a trainee's body includes a training machine, a control device controlling the training machine, and a display unit displaying a game screen. The training machine imposes a load on the trainee, with an MR-fluid load generating unit using MR fluid, which has viscosity varying with a magnetic field strength. The load is calculated on the basis of a target load and a relationship between the current in the MR-fluid load generating unit and the load generated by the MR-fluid load generating unit. The control device produces the game screen in correspondence with the trainee's training motion detected by a displacement detection sensor, and makes the display unit display the game screen, while controlling the load in the training machine.

Abstract: A process for producing an aluminum alloy semi-molten billet for use as a transporation unit, including the steps of: producing an aluminum alloy having a composition consisting essentially of, in weight %, 0.5 or less Cu, 5.0 to 10.0 Si, 0.2 to 0.7 Mg, 0.35 or less Zn, 0.55 or less Fe, 0.5 or less Mn, 0.005 to 0.5 Ti, and the balance aluminum; introducing working strain into a melt of the aluminum alloy by means of molding flask-assisted cold forging at a distortion rate of 10 to 40%, at a working introduction velocity of 10 mm or less per second, and at a temperature of 200° C. or lower; and, thereafter heat-treating such a strain introduced melt at temperatures in a range of 576 to 585° C.