Abstract: A mining riser pipe is extended from above water toward a water bottom containing water bottom resources, and a lower portion of an insertion pipe connected to a lower portion of the mining riser pipe is inserted into the water bottom. A liquid is supplied into the insertion pipe and a rotation shaft extends axially inside both of pipes is rotated to rotate stirring blades attached to a lower portion of the rotation shaft inside the insertion pipe, thereby drilling and dissolving mud S inside the insertion pipe into a slurry form is raised to an upper portion of the insertion pipe by a stirring flow generated by the rotation of the stirring blades, and the raised mud is lifted above the water through the mining riser pipe by lifting force.

Abstract: There is provided a treatment method that is capable of reducing burden on a patient when a medical sheet is indwelled in the body of the patient. A treatment method includes an introduction of introducing a catheter, which has stored a medical sheet (e.g., a myocardial cell sheet), to a heart inside a living body, and an indwelling step of drawing the myocardial cell sheet from the catheter and indwelling the myocardial cell sheet in the heart.

Abstract: There is provided a treatment method that is capable of reducing burden on a patient when a medical sheet is indwelled in the body of the patient. A treatment method includes an introduction of introducing a catheter, which has stored a medical sheet (e.g., a myocardial cell sheet), to a heart inside a living body, and an indwelling step of drawing the myocardial cell sheet from the catheter and indwelling the myocardial cell sheet in the heart.

Abstract: A balloon catheter is disclosed, which includes an elongated shaft body, a dilatable balloon in which a distal end portion and a proximal end portion form a dilation chamber inside of the dilatable balloon by being away from each other and being individually bonded to an outer periphery of the shaft body, and a stretch regulation member that connects the outer periphery of the shaft body or an inner periphery of the balloon of the distal end portion of the balloon and the outer periphery of the shaft body or the inner periphery of the balloon of the proximal end portion of the balloon with each other inside the dilation chamber while regulating a stretch occurring between the distal end portion and the proximal end portion of the balloon during dilation of the balloon.

Abstract: A purchaser requests a supplier to manufacture a component. A management form for managing a schedule ranging from the development to delivery of the component to be procured is jointly prepared by the procurement section, production management section and inspection section of the purchaser, and is stored in a publishing server. The publishing server publishes the management form for the supplier. The supplier inputs information required by the purchaser to the published management form. The purchaser collectively manages the progress ranging from the development to the delivery of the component to be procured, using the information input by the supplier.

Abstract: A nickel-hydrogen battery is designed to have, in its battery container, electrode plates welded and connected onto a lead conductor. With the configuration, the edge of the end portion of the lead conductor welded onto the electrode plate can be formed as a combination of concave and convex portions. The stresses on the electrode plate and lead conductor are concentrated on the edge of the end portion onto which the electrode plate and lead conductor are welded and where a crack may arise. However, shaping into waveform the edge of the end portion where the lead conductor is welded onto the electrode plate makes the edge of the end portion long enough to reduce the concentration of the stresses. Furthermore, even if the crack may have arisen, the development of the crack can be reduced by making the crack development direction different from the direction of the edge of the lead conductor because the edge of the end portion of the lead conductor is shaped into waveform.