Abstract: To provide a disposable diaper enabling reduction in re-wet amount and having an excellent speed of incorporating liquid regardless of concentration and configuration of a water-absorbing agent in an absorbent material. A water-absorbing agent having excellent Gel Capillary Absorption (GCA) and Free Gel Bed Permeability (FGBP) is obtained by crushing a crosslinked hydrogel polymer obtained in a polymerization step to have a specific weight average particle diameter while fluid retention capacity and a surface tension of a water-absorbing agent are adjusted in a specific range, drying the crushed crosslinked hydrogel polymer, and then adding a liquid permeability enhancer thereto during surface crosslinking or after surface crosslinking.

Abstract: A phosphorus compound-complexed activated carbon capable of easily realizing an electric double layer capacitor having high capacitance per unit volume and excellent durability is provided. A phosphorus compound-complexed activated carbon for an electric double layer capacitor having a phosphorus atom content of 1,000 ppm or more, and 20,000 ppm or less, a BET specific surface area of 1,600 m2/g or more, and 2,200 m2/g or less, an average pore diameter of 1.7 nm or more, and 2.1 nm or less, and a pore volume of pores having pore diameters within the range of 1.4 nm to 2.0 nm calculated by a Cranston-Inkley method of 0.25 cm3/g or more. This phosphorus compound-complexed activated carbon is produced by kneading an activated carbon and phosphoric acid at 130° C. to 170° C., conducting molding, and after executing a first heating process in which heating is conducted at 100° C. to 230° C., a second heating process in which heating is conducted at 400° C. to 600° C.

Abstract: A formed activated carbon has a Kiya crushing strength of 1 kg or more and a specific heat of 0.4 J/K·cc or more at 25° C.

Abstract: Activated carbon adapted for electric double layer capacitors is provided, which capacitors can give a large power density per unit volume and which capacitors, even when charge-and-discharge cycle is repeated under a large current or a constant voltage is continuously applied for a long time, undergo less decrease in output density.

Abstract: An activated carbon has a specific surface area of pores with a pore diameter of not less than 20 .ANG. in the pore distribution determined from the nitrogen adsorption isotherm of not less than 1,000 m.sup.2 /g, and the ratio of the specific surface area of the pores with a pore diameter of not less than 20 .ANG. to the specific surface area of the whole pores of not less than 0.45.

Abstract: A plurality of finger members disposed adjacent each other are moved by a driving mechanism in a reciprocal, sequential manner. Infusion is carried out when the finger members engage an infusion tube in a peristaltic sequence. The finger members contact each other by projections formed integrally on the upper and lower surfaces of the finger members to reduce the contact surface area. A fluid diversion guiding hole is contained in a tube-pressing portion of each finger member. The guide holes of adjacent finger members are aligned to form a continuous channel for discharging leaking infusion fluid. Bevels surround the guiding holes and are inclined toward the center of the hole. Each finger member also includes a rib that is integral with and protrudes upward from the upper surface of the finger member for blocking infusion fluid from the finger members and drive mechanism.

Abstract: A flow sensor detects drops of infusion fluid that enter the drip chamber of an infusion system and generates a drop-detection signal indicating each drop detected. A setting controller receives the drop-detection signals from the flow sensor and counts the drops detected and then determines the fluid-flow rate of infusion fluid into the drip chamber. The setting controller then sets the infusion pump so that the fluid-flow rate of the infusion pump substantially matches the fluid-flow rate of the drip chamber. A motion sensor detects drip-chamber movement and generates a motion-detection signal indicating the motion state of the drip chamber. A maintaining controller is coupled to receive the motion-detection signal from the motion sensor. The maintaining controller also stores a signal that indicates a stationary drip chamber.