Abstract: [Problem] To efficiently generate multiple portfolio candidates based on investment policies of each financial institution and present the portfolio candidates to a user in an easily understandable form. [Solution] A portfolio creation assistance device 100, includes: a storage unit 101 storing information on each of financial commodities; and a computation unit 104 performing a computation of an Ising model of a predetermined expression in which items of an expected return rate, a price drop risk, and a market sensitivity in a portfolio including combined predetermined ones of the financial commodities indicated by the information are combined with weights for the respective items, wherein the computation unit 104 outputs portfolios each obtained for one of patterns of the weights for the respective items as a result of the computation to a predetermined device, the portfolios each minimizing a value of the predetermined expression.

Abstract: System For Detecting A Breakage Of A Power Cable For An Elevator System Which can accurately detect the breakage of at least one copper wire in the respective power cables present between the inverter of the elevator system and a linear motor moving element and which is difficult to visually inspect.

Abstract: A tubular linear motor is provided having a secondary and a primary. The primary consists of a plurality of laminations and coils. Each lamination has a width with a plurality of notches removed therefrom, and a first end and second end, with a length extending therebetween. When the laminations are aligned, the notches collectively form channels which receive the coils. The plurality of coils are arranged in poles, each pole having a discrete number of coils corresponding to the number of phases in the current driving the linear motor, or a multiple thereof. A percentage of the coils corresponding to the phase closest to the first end of the primary, is positioned at the second end of the primary.

Abstract: An elevator brake is provided with a redundant means to release the brake to allow an elevator cab to move when a primary releasing means, such as a coil, does not release when desired. When the coil is deenergized or defective, an auxiliary coil is used to release the brake and enable the cab to move.

Abstract: A stator member of a linear motor type elevator system is mounted in the elevator hoistway so as to permit vibrational movement of the stator to occur. The stator mounts permit rotational movement of the stator and also apply a longitudinal tensioning force to the stator. The tensioning force is supplied by a spring which absorbs vibrations of the stator.

Abstract: The rope weight of a linear motor driven elevator is compensated by using a cable suspended from the bottom of a counterweight and from the bottom of an elevator car, the cable supplying electrical power to a moving member of the linear motor, the moving member functioning as a primary conductor.

Abstract: A rotary encoder engages the circumferential periphery of an elevator sheave to monitor the rotational speed of the sheave. The encoder is mounted on an adjustable mounting assembly which biases the rotor against the sheave circumference along a line passing through the axis of rotation of the sheave.

Abstract: A column vibration detection system for a linear motor driven elevator system comprises a vibration sensor installed on a column portion of a linear motor for detecting vibrations caused by seismic activity in the column portion propagated through the column portion, a first means for comparing an output signal derived from the vibration sensor with an earthquake occurrence determination signal, and a second means for controlling the linear motor of the elevator system on a basis of the occurrence or output of the first means.

Abstract: A linear motor driven elevator system comprises: a car connected to a counterweight by a rope; a linear motor comprised of a primary conductor and secondary conductor, one of which is a moving element and the other being a stator, the moving element being mounted in the car or the counterweight; and a device for stopping the car comprising, a power source connected to the primary conductor, the power source being continuously fed to the primary conductor to move the car and not being fed to the primary conductor to stop the car, and a braking device mounted on the car, the braking device being disengaged when power is fed to the primary conductor and engaged when power to the primary conductor is interrupted.