Abstract: A cylindrical body is produced which is composed of a fiber structure with a basis weight of 1-50 g/m2 and having a diameter of 0.5-50 mm and a bellows-shaped section, wherein the crest-to-crest spacing of the bellows-shaped section is no greater than 2 mm and the crest-to-valley depth of the bellows-shaped section is 0.01-1 mm; collagen is added to the cylindrical body to produce a composite including the cylindrical body and collagen.

Abstract: A 2,3-dihydro-1H-indene-2-yl urea derivative represented by Formula (Ia) or a pharmaceutically acceptable salt thereof:

Abstract: A hyaluronic acid compound which is a reaction product between hyaluronic acid and a phosphatidyl ethanolamine. This compound has biocompatibility and bio-safety, and can be formed into a hydrogel or molded form having a certain shape. Making use of these properties, it is used to treat a knee joint, prevent the accretion of a tissue after an operation and keep a skin wet.

Abstract: Disclosed are a polysaccharide derivative obtained by substituting some of the carboxyl groups of a carboxy polysaccharide with —NH—X—CO—Y—Z; and a hydrogel thereof. Here, X is a C1-10 hydrocarbon group, Y is a polyalkylene oxide having oxygen atoms at both ends, and Z is a C1-24 hydrocarbon group or —CO—R2, with R2 being a C1-23 hydrocarbon group. The hydrogel has excellent viscoelasticity and can be injected into a predetermined location with an injection device such as a syringe, and thus can be advantageously used as a medical gel or an adhesion barrier.

Abstract: Provided are a fuel cell system capable of shortening the wait time of an observer who confirms set points of a system interconnection protective device before starting a system interconnection operation, and a method for operating the fuel cell system.

Abstract: The invention relates to a honeycomb film made of a biodegradable polymer which has biodegradation properties as an anti-adhesion membrane for preventing adhesion after an operation, is excellent in handling properties, and exhibits a satisfactory adhesion preventive effect stably over a desired period of time, and to a production process of the same. Above all, the invention provides an anti-adhesion membrane of a honeycomb film made of polylactic acid as a biodegradable polymer and a phospholipid and a production process of the same.

Abstract: A nerve dysfunction repairing material including a hydrogel of a polysaccharide derivative that has, in a 0.5 wt % aqueous solution, a complex modulus of 1 to 1000 N/m2 and a loss factor of 0.01 to 2.0 as measured at an angular velocity of 10 rad/sec using a dynamic viscoelasticity measuring apparatus. The nerve dysfunction repairing material can be a hydrogel injectable through a syringe, has excellent retention in the body, and has a restorative effect on the function of damaged or degenerated nerves.

Abstract: A fuel cell power generation system 100 for performing power generation using hydrogen-containing gas generated from a raw material containing a hydrocarbon component and an odorizer component includes a raw material supply section 4 for controlling a flow rate of the raw material; a water supply section 3 for supplying water; an adsorptive removal section 5 for causing the raw material to pass therethrough and adsorbing the odorizer component contained in the raw material; a reformer 1 for generating the hydrogen-containing gas by a reforming reaction of the raw material which has passed the adsorptive removal section and water supplied from the water supply section; a fuel cell 8 for performing power generation using the hydrogen-containing gas as a fuel; and an operating control section for, as an accumulated flow volume of the raw material supplied to the adsorptive removal section 5 from the raw material supply section 4 increases, decreasing the flow rate of the raw material to be supplied to the adsorp

Abstract: The present invention relates to a method for regenerating a filter that traps particulate matter contained in exhaust gas of an internal combustion engine. The regeneration method includes increasing an amount of soot having a low degree of graphitization in the filter. After the amount of soot having the low degree of graphitization is increased, a temperature of the filter is increased.

Abstract: A hydrogel comprising a polysaccharide, wherein amphiphilic side chains are bonded to the carboxyl groups of a polysaccharide with carboxyl groups on side chains, an inorganic ion other than calcium ion, and water, and a method for its preparation. The gel has high viscoelasticity, can be injected into the body using an instrument such as a syringe, and is useful for various biomedical materials.

Abstract: An energy supply system comprises an energy supply device (1a) for supplying at least one of electric power and heat, and a controller (6) configured to set first maximum operation time which is an upper limit value of operation time of the energy supply device in a first specified period shorter than a guaranteed operation period of the energy supply device such that operation time of the energy supply device does not reach operation time life before the guaranteed operation period lapses, and calculate and set second maximum operation time which is an upper limit value of the operation time of the energy supply device in a second specified period shorter than the first specified period based on the set first maximum operation time such that the operation time of the energy supply device within the first specified period does not exceed the first maximum operation time.

Abstract: A cylindrical body is produced which is composed of a fiber structure with a basis weight of 1-50 g/m2 and having a diameter of 0.5-50 mm and a bellows-shaped section, wherein the crest-to-crest spacing of the bellows-shaped section is no greater than 2 mm and the crest-to-valley depth of the bellows-shaped section is 0.01-1 mm; collagen is added to the cylindrical body to produce a composite including the cylindrical body and collagen.

Abstract: The invention is a cellulose derivative wherein some of the carboxyl groups of the cellulose derivative carboxymethylcellulose are replaced with —CO—NH—X—CO—Y—Z, and a hydrogel of the same. In the formula, X is a C1-10 divalent hydrocarbon group, Y is a divalent group derived from polyalkylene oxide having oxygen atoms at both ends, and Z is a C1-24 hydrocarbon group or —CO—R4, where R4 is a C1-23 hydrocarbon group. The hydrogel has excellent viscoelasticity and can be injected into prescribed sites with injecting devices such as syringes, and it can thus be utilized as a medical gel or adhesion barrier.

Abstract: A tissue regeneration substrate comprising a film with a honeycomb structure composed primarily of a polymer compound and a phospholipid. A tissue regeneration complex comprising the tissue regeneration substrate and cells held in the tissue regeneration substrate. The substrate is particularly suitable for regeneration of cartilage tissue, and allows growth of cartilage tissue in a three-dimensional fashion.

Abstract: A cellulose derivative which has a suitable elastic modulus and viscosity when it is dissolved in water and is useful as an adhesion barrier. The cellulose derivative has a molecular weight of 5×103 to 5×106 and is composed of a repeating unit represented by the following formula (1): wherein R1, R2 and R3 are each independently selected from the group consisting of the following formulas (a), (b), (c) and (d) in predetermined amount: (X in the formula (c) is an alkali metal, and R4 and R5 in the formula (d) are each independently an alkyl group or alkenyl group having 10 to 28 carbon atoms).

Abstract: The invention provides a cellulose derivative having a repeating unit of the formula below, a composition including the cellulose derivative and a phospholipid, a method for production thereof, and an adhesion barrier including the cellulose derivative or the composition. In the formula, R1, R2, and R3 are —H, —CH2—COOH, —CH2—COOX, or —CH2CO-phosphatidylethanolamine, and X is an alkali metal or an alkali earth metal. The degree of substitution of —CH2—COOH and —CH2—COOX is 0.3 to 2.0 in total, and the degree of substitution of —CH2CO-phosphatidylethanolamine is 0.001 to 0.05.

Abstract: An internal combustion engine (1) comprises a fuel injector (9), a filter (13) which traps particulate matter in exhaust gas, and a catalyst (14) which oxidizes unburnt fuel or carbon monoxide in the exhaust gas on the upstream side of the filter (13). When regeneration of the filter (13) is required, a controller (21) determines a post-injection fuel injection timing and a post-injection fuel injection amount of the fuel injector (9) on the basis of an upstream exhaust gas temperature (Texh) and a catalyst temperature (Tcat) (S16, S17, S19, S20, S22, S23, S25, S26, S28), thereby optimizing the regeneration temperature condition of the filter (13).

Abstract: To provide a scaffold having excellent mechanical strength and cell growth capability and is suitable for use as a cell culture medium or a prosthetic material. The present invention relates to a scaffold composed of an assembly of fibers and having a 3-D structure consisting of two end faces and a side face, wherein (1) the fibers are aligned in a plane direction; (2) the fibers have a diameter of 0.05 to 50 ?m; (3) the fibers are essentially composed of a biocompatible polymer; and (4) the scaffold has an apparent density of 95 to 350 kg/m3.

Abstract: A hyaluronic acid compound which is a reaction product between hyaluronic acid and a phosphatidyl ethanolamine. This compound has biocompatibility and bio-safety, and can be formed into a hydrogel or molded form having a certain shape. Making use of these properties, it is used to treat a knee joint, prevent the accretion of a tissue after an operation and keep a skin wet.

Abstract: It is an object of the present invention to provide a cylindrical body which has an excellent elastic modulus and elastic recovery and is suitable for use as a scaffold material for revascularization. It is a further object of the present invention to provide a cylindrical body which has an outermost layer with high air permeability, is excellent in cell infiltration and is suitable for use as a scaffold material for revascularization. The cylindrical body of the present invention is a hollow cylindrical body consisting of a plurality of concentric layers and having an outer diameter of 0.5 to 50 mm and a thickness of 200 to 5,000 ?m, and each layer is made of aliphatic polyester fibers having an average fiber diameter of 0.05 to 50 ?m.