Kalhor-Witzel, Ronak

A structure is proposed for traversing a fluid environment and reducing the interference of the fluid flow vector at a trailing edge of the structure. The structure comprises an elongate body having a root, a wingtip, a leading edge and the trailing edge. The structure has a plurality of flexible projections positioned along the trailing edge extending from a base to a tip. The plurality of flexible projections bend to conform to a curvature of the fluid flow vector at the trailing edge and have a first resonant frequency above an oscillating force generated by the fluid flow vector.

A conveyance apparatus includes: a conveyance unit having a conveyance surface configured to convey an article; a posture changing unit provided on one side portion of the conveyance unit, configured to be switchable in advancing-retracting positions of the posture changing unit between a first state in which the posture changing unit is advanced toward an other side portion of the conveyance unit and a second state in which the posture changing unit is retracted toward the one side portion from the first state, and configured to change at least one of a position or a posture of the article being conveyed by interference with the article; a detection unit provided upstream of the posture changing unit in a conveyance direction of the article, and configured to detect at least one of a position or a posture of the article along a direction intersecting the conveyance direction; and a control unit configured to control the advancing-retracting position of the posture changing unit between the first state and the second state, wherein the control unit determines whether to cause the article and the posture changing unit to interfere with each other based on at least one of the position and the posture detected by the detection unit, and controls the advancing-retracting position of the posture changing unit according to a result of the determination.

ObjectTo provide a folding apparatus (340) and a box sealing apparatus (33) that can achieve space savings.SolutionA folding apparatus (340) includes: a transport unit (370) configured to transport a cardboard box (B); and a folding unit (380) disposed above the transport unit (370) and configured to fold a front flap (Zfaa) and a rear flap (Zfab) into the inside of an opening (O) of the cardboard box (B). The transport unit (370) stops transport of the cardboard box (B) when the cardboard box (B) is positioned below the folding unit (380). The folding unit (380) includes a first abutting portion (381) and a second abutting portion (382), a first mechanism (383) configured to drive the first abutting portion (381) and the second abutting portion (382) and make the front flap (Zfaa) and the rear flap (Zfab) stand upright from below in conjunction with an operation of the first abutting portion (381) and the second abutting portion (382), and a second mechanism (384) configured to fold the front flap (Zfaa) and the rear flap (Zfab) standing upright toward the inside of the opening (O) by moving the first abutting portion (381) and the second abutting portion (382) along a transport direction.

It is described a method of performing quantum error correction on a measurement-based quantum computer using fault complexes. A first chain complex is derived based on a first parity check matrix (PCM) and a second PCM that describe a quantum surface code. A second chain complex is derived based on a third PCM of a binary linear code. A fault complex having one or more boundary operators is generated based on a tensor product between the first and the second chain complexes. Qubits on the measurement-based quantum computer are prepared to implement a fault-tolerant graph state based on the one or more boundary operators of the fault complex. Quantum error correction can be performed based on the measurement of the prepared qubits.

An article storage system 100 includes an article storage device 1 and a central controller 110 for controlling the operation of the article storage device 1. The plurality of article storage devices 1 are arranged side by side such that boxes B can be transferred between adjacent article storage devices 1 via the box transport unit 40. A single box B is sequentially transported from one article storage device 1 to another. The central controller 110 acquires the status of the article storage devices 1 and, when an abnormality occurs in any article storage device 1, continues the operation of article storage devices 1 located upstream and/or downstream of the article storage device 1 where the abnormality has occurred in the transport direction of the box B.

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