Abstract: Provided is a piston ring capable of maintaining an excellent effect of preventing aluminum cohesion in a high output engine over a long period of time. At least one of the upper, lower, and side faces of the piston ring is coated with a silica-based coating in which hard nanoparticles are dispersed. The coating has a Martens hardness of 1,000 to 8,000 N/mm2. As the hard nanoparticles, carbon nanoparticles, nanodiamond particles, carbon nanotubes, or carbon nanofibers are used. To the coating, resin particles of a fluorine-based resin or a polyether-based resin may be added.

Abstract: A piston ring having a resin-based film covering at least one of the upper and lower sides, wherein the resin-based film contains a fibrous filler with a mean fiber diameter of 50 to 500 nm and an aspect ratio of 30 to 500, wherein the fibrous filler in the resin-based film to align roughly parallel to the film surface.

Abstract: Disclosed is a piston ring that, in an engine where high temperature is reached in the vicinity of the piston ring, is capable of sustaining an excellent effect of preventing aluminum cohesion over a prolonged period of time. The piston ring having a resin-based coating formed on at least one of an upper surface and a lower surface of a piston ring body, the resin-based coating including a first resin-based coating containing plate-like filler having a mean particle diameter of 2 ?m to 20 ?m and an aspect ratio of 20 to 200 and a second resin-based coating located under the first resin-based coating and containing hard particles having a mean particle diameter of 0.01 ?m to 1 ?m.

Abstract: Disclosed is a piston ring that, in an engine where high temperature is reached in the vicinity of the piston ring, is capable of sustaining an excellent effect of preventing aluminum cohesion over a prolonged period of time. The piston ring having a resin-based coating formed on at least one of an upper surface and a lower surface of a piston ring body, the resin-based coating including a first resin-based coating containing plate-like filler having a mean particle diameter of 2 ?m to 20 ?m and an aspect ratio of 20 to 200 and a second resin-based coating located under the first resin-based coating and containing hard particles having a mean particle diameter of 0.01 ?m to 1 ?m.

Abstract: [OBJECT] To provide a piston ring which, when used in a high-output engine, can sustain an excellent effect of suppressing aluminum adhesion, over a long period. [SOLUTION MEANS] Either or both the upper and lower sides of the piston ring are covered with a resin-based film containing a fibrous filler with a mean fiber diameter of 50 to 500 nm and an aspect ratio of 30 to 500. The fibrous filler content is 0.5 to 10 vol % with respect to the total resin-based film. Also, the fibrous filler used is at least one type from among carbon fibers, silica fibers and boron nitride fibers.

Abstract: Provided is a piston ring capable of maintaining an excellent effect of preventing aluminum cohesion in a high output engine over a long period of time. At least one of the upper, lower, and side faces of the piston ring is coated with a silica-based coating in which hard nanoparticles are dispersed. The coating has a Martens hardness of 1,000 to 8,000 N/mm2. As the hard nanoparticles, carbon nanoparticles, nanodiamond particles, carbon nanotubes, or carbon nanofibers are used. To the coating, resin particles of a fluorine-based resin or a polyether-based resin may be added.

Abstract: A fuel cell separator having excellent corrosion resistance, electric conductivity and durability comprising a substrate made of austenitic stainless steel, and a nitride layer formed on a surface of the substrate in contact with an oxygen electrode or a current collector on the oxygen electrode side, the nitride layer comprising a solid solution compound phase composed of an Fe4N crystal, in which part of Fe is substituted by at least Cr and Ni.

Abstract: A piston ring mounted in the ring groove of an aluminum alloy piston does not cause aluminum adhesion during the long-term use. The piston ring includes a resin film deposited on at least one of an upper face and a lower face. The resin film contains from 0.5 to 20% by volume of carbon black particles and from 3 to 30% by volume of solid lubricant particles with respect to the total volume of the resin film. The carbon black particles preferably contain one or both of graphitized carbon black particles and composite graphite black particles.

Abstract: A fuel cell separator having excellent corrosion resistance, electric conductivity and durability comprising a substrate made of austenitic stainless steel, and a nitride layer formed on a surface of the substrate in contact with an oxygen electrode or a current collector on the oxygen electrode side, the nitride layer comprising a solid solution compound phase composed of an Fe4N crystal, in which part of Fe is substituted by at least Cr and Ni.

Abstract: A method for supplying hydrogen to a fuel cell comprising (a) a medium-reducing step, which comprises reforming a liquid fuel to generate a reformed gas containing hydrogen and carbon monoxide, and supplying the reformed gas to a hydrogen-purifying unit containing a carbon monoxide-oxidizing catalyst and a hydrogen-generating medium to reduce the hydrogen-generating medium and oxidize the carbon monoxide; and (b) a medium-oxidizing step, which comprises supplying steam to a hydrogen-purifying unit containing a carbon monoxide-oxidizing catalyst and a hydrogen-generating medium, to generate hydrogen while oxidizing the hydrogen-generating medium, the medium-reducing step and the medium-oxidizing step being conducted alternately.

Abstract: The present invention provides a flame-retardant electromagnetic wave absorber that exhibits excellent formability and electromagnetic wave-absorbing properties, and can be easily assembled and constructed. The electromagnetic wave absorber comprises a wave-absorbing body and a base plate supporting the bottom thereof, wherein the wave-absorbing body is formed in a pyramid shape by fitting polygonal wave-absorbing plates into each other.

Abstract: A radio wave absorber unit includes two or more molded bodies in a pyramid or wedge shape whose radius at the tip end is from 0.5 mm to 7.5 mm and a base. A radius at the trough between adjacent molded bodies is 7.5 mm or less. A unit including molded bodies and the base is integrally formed from propylene-based conductive expanded beads. The bases of adjacent units are connected by fitting their recessed and raised portions to each other. The expanded bead size is in the range from 2 mm to 10 mm, and beads with two or more different bead diameters can be used. A hollow molded body can be formed by providing a hollow structure inside.

Abstract: A commodity developing method is provided for realizing effective and timely development of a commodity by deciphering a commodity concept using a computer and deciphering latent needs consistency of the commodity. Also, a commodity developing system, a commodity development program, and a recording medium on which the commodity development program is recorded are provided. A commodity concept arbitrarily conceived by an inputter is input to an input template, and a dictionary table is used as a reference to create a work list. After completion of the input process, commodity concepts and other contents of the work list are displayed at the input template, and the commodity concepts are checked to see whether they are appropriate and corrected if necessary. Then a compilation chart is created, and commodity concept category data is analyzed according to a predetermined analysis method.

Abstract: A radio wave absorber having a good radio wave absorption characteristic and high impact resistance is provided which is less susceptible to damages by chipping or the like during the manufacture or in use. The radio wave absorber unit includes two or more molded bodies in a pyramid or wedge shape whose radius at the tip end is from 0.5 mm to 7.5 mm and a base. A radius at the trough between adjacent molded bodies is 7.5 mm or less. A unit including molded bodies and the base is integrally formed from propylene-based conductive expanded beads. The bases of adjacent units are connected by fitting their recessed and raised portions to each other. The expanded bead size is in the range from 2 mm to 10 mm, and beads with two or more different bead diameters can be used. A hollow molded body can be formed by providing a hollow structure inside.

Abstract: A merchandise concept development method for grasping useful merchandise concepts and further potential needs adaptability of the merchandise is provided. A questionnaire survey for objective merchandise is conducted on a plurality of subjects to collect a plurality of merchandise concepts related to a current product and an ideal merchandise, which are presented based on the free ideas of the subjects. For merchandise concepts common between the subjects, a ratio between number of subjects recognizing them for the ideal merchandise and number of subjects recognizing them for current product is derived. Merchandise concepts having larger ratios are set as a target of merchandise development or merchandise sales. Targeted merchandise concepts situated at the top left side in a figure have low customer satisfaction, among explicit needs, and a value not yet recognized, and those situated on the vertical axis are for new values that do not exist as potential needs.

Abstract: A weak acid skin cleanser containing an alkali salt of N-acylamino acid and maltitolhydroxy aliphatic ether, or a hydroxy ether carboxylic acid-based anionic surfactant, or polyethylene powder, as well as water and an organic acid. Also, a weak acid skin cleanser containing an alkali salt of N-acylamino acid, a betaine-based ampholytic surfactant, water, and an organic acid. The weak acid skin cleansers mentioned above provide creamy and rich foaming, rapid rinsing, refreshing sensation during use, moist skin sensation after cleaning, and shelf stability of the base agent (separation, offensive odor, discoloration, etc.), and are free of increasing hardness over time at room temperature and below.

Abstract: A composite electromagnetic wave absorber capable of restricting the height of a pyramidal electromagnetic wave absorber and being applied to a compact anechoic chamber, wherein an upper absorber (3) is fabricated by dispersing ferrite powder in a general-purpose resin having a permittivity of not higher than 4.9.

Abstract: The present invention relates to compounds represented by the formula: wherein ring H represents an optionally substituted aromatic heterocyclic group or an optionally substituted alicyclic hydrocarbon group; X and Y independently represent a single bond, —O—, a group of the formula: —S(O)m— wherein m is 0, 1 or 2, a group of the formula: —NR8— wherein R8 represents a hydrogen atom, an alkyl group or an acyl group, —CO— or an optionally substituted methylene group; —A—B— represents —N═CH—, —CH═N—, —N═N— or —CH═CH—; R1 represents a hydrogen atom, a halogen atom, an optionally substituted alkyl group which may be bonded through a hetero atom or an acyl group; R2 and R3 independently represent a hydrogen atom, a halogen atom or an optionally substituted alkyl group; R4 represents a hydrogen atom or a halogen atom; R5 represents a hydrogen atom, an optionally subs

Abstract: A composition for external use which contains xyloglucan. It preferably further contains an ultraviolet shielding agent, a thickening polysaccharide, a thickening polysaccharide and sericin, a carboxyvinylpolymer, or an alkyl-modified carboxyvinylpolymer.

Abstract: A multi-layer lightweight texture composition containing, (i) an oil component; (ii) water; (iii) a polyol; (iv) a nonionic surfactant selected from stearic acid polyoxyethylene (degree of polymerization n=3-10) cetyl ether, stearic acid polyoxyethylene (n=4-12) stearyl ether, stearic acid polyoxyethylene (n=3-15) lauryl ether, isostearic acid polyoxyethylene (n=2-10) lauryl ether, monostearic acid glycerol, lauroylglutamic acid polyoxyethylene (n=2-5) octyldodecyl ether diester, lauroylglutamic acid dipolyoxyethylene (n=2-5) stearyl ether, polyoxyethylene (n=3-50) oleyl ether, polyoxyethylene (n=2-12) diisostearate, and sorbitan monooleate; and (v) a water-soluble salt.