Abstract: Provided is a separation and recovery apparatus for continuously separating and recovering, from a resin mixture containing a resin containing a hydrolyzable polymer and a resin containing a nonhydrolyzable polymer, a hydrolytic component a of the hydrolyzable polymer A and the nonhydrolyzable polymer B, the apparatus including: a crushing unit that crushes the resin mixture a melting/discharging unit that melts a crushed product obtained by the crushing unit to form a fluid and discharges the fluid at a high pressure; and a hydrothermal reaction treatment unit that continuously subjects the fluid discharged from the melting/discharging unit to a hydrothermal reaction treatment, wherein, in the melting/discharging unit, the hydrolyzable polymer A is hydrolyzed, and the hydrolytic component a thereof is dissolved and transferred into water permeating a sintered alloy diaphragm, thereby separating the nonhydrolyzable polymer B.

Abstract: An oceanographic information collection system includes an anchor arranged on a sea bottom, an intermediate buoy connected to the anchor and floating in a sea, a mooring cable connected at one end to the intermediate buoy and at another end to an observation buoy. The observation buoy includes a main body whose longitudinal direction is arranged in a flowing direction of an ocean current. A specific gravity adjuster is arranged in the main body and includes an expandable and shrinkable buoyancy bag, an antenna arranged on the main body and transfers data, and an observation unit arranged in the main body and acquires prescribed oceanographic information. The observation buoy floats upward by expanding the buoyancy bag of the specific gravity adjuster, and sinks by shrinking the buoyancy bag in order to stand by in the sea. The buoy can easily float, sink and stand by in the sea.

Abstract: An oceanographic information collection system includes an anchor arranged on a sea bottom, an intermediate buoy connected to the anchor and floating in a sea, a mooring cable connected at one end to the intermediate buoy and at another end to an observation buoy. The observation buoy includes a main body whose longitudinal direction is arranged in a flowing direction of an ocean current. A specific gravity adjuster is arranged in the main body and includes an expandable and shrinkable buoyancy bag, an antenna arranged on the main body and transfers data, and an observation unit arranged in the main body and acquires prescribed oceanographic information. The observation buoy floats upward by expanding the buoyancy bag of the specific gravity adjuster, and sinks by shrinking the buoyancy bag in order to stand by in the sea. The buoy can easily float, sink and stand by in the sea.

Abstract: An information providing system includes a database having advertisement information and a bid amount of money of an advertisement stored correspondingly. Corresponding pieces of advertisement information are select from the database responding to a retrieval request from a terminal to decide an advertisement publishing order based upon the bid amount of money of each of these pieces of advertisement information. The advertisement publishing order is decided based upon a probability that is calculated from a ratio of the bid amount of money of each advertisement that becomes an object of display over a sum of bid amounts of money of advertisements that become an object of display. This allows the displaying order not to be uniquely decided with the bid amount of money.

Abstract: An information providing system includes a database having advertisement information and a bid amount of money of an advertisement stored correspondingly. Corresponding pieces of advertisement information are select from the database responding to a retrieval request from a terminal to decide an advertisement publishing order based upon the bid amount of money of each of these pieces of advertisement information. The advertisement publishing order is decided based upon a probability that is calculated from a ratio of the bid amount of money of each advertisement that becomes an object of display over a sum of bid amounts of money of advertisements that become an object of display. This allows the displaying order not to be uniquely decided with the bid amount of money.