Abstract: The strain gauge holder 1 includes a holder body 10 on a side surface of a pipe 3, a gauge pressing member 21 for pressing a strain gauge 2 against the side surface of the pipe, and a feed mechanism for giving a pressing force to the gauge pressing member. The guide grooves 12 guide the gauge pressing members. The feed mechanism feeds the gauge pressing member in the guide groove to press the strain gauge 2 against the side surface of the pipe 3. The feed mechanism includes cylindrical portion 32a, bushing 32, and feed screw 31. Each of the feed screws 31 threadedly inserted into the bushing mounted on the holder body is threadedly inserted to feed the gauge pressing member.

Abstract: The strain gauge holder 1 includes a holder body 10 on a side surface of a pipe 3, a gauge pressing member 21 for pressing a strain gauge 2 against the side surface of the pipe, and a feed mechanism for giving a pressing force to the gauge pressing member. The guide grooves 12 guide the gauge pressing members. The feed mechanism feeds the gauge pressing member in the guide groove to press the strain gauge 2 against the side surface of the pipe 3. The feed mechanism includes cylindrical portion 32a, bushing 32, and feed screw 31. Each of the feed screws 31 threadedly inserted into the bushing mounted on the holder body is threadedly inserted to feed the gauge pressing member.

Abstract: An eddy-current flaw detection device comprises a magnetic element group of which a specified number of magnetic elements are evenly spaced in each of at least two rows around the surface of a column shaped casing that can be inserted into a conductive pipe, with one row being located at a different position from the other row by ½ the even spacing in the row direction, and switching circuits for switching the magnetic elements in the respective row at time-division. The elements of one row function as magnetic field excitation elements, the elements of the other row function as magnetic field detection elements, and the eddy-current flaw detection device performs eddy-current flaw detection of the conductive pipe by detecting magnetic field excited by magnetic field excitation element by two magnetic field detection elements located at different positions from the magnetic field excitation elements by 3/2 the even spacing.

Abstract: The invention provides a biodegradable film or sheet having water resistance and strength sufficiently. Respective components are mixed so as to form a mixture containing 0% by mass or more and 35% by mass or less of starch, 20% by mass or more and 70% by mass or less of protein, 15% by mass or more and 60% by mass or less of cellulose fibers and 1% by mass or more and 15% by mass or less of urea, then adding 10 or more and 100 or less parts by mass of water to 100 parts by mass of the mixture, kneading the mixture sufficiently with a twin-screw mixer or the like, and rolling the kneaded product under heating at about 120° C. to give a film or sheet with several tens ?m to about 300 ?m in thickness.

Abstract: The present invention provides a processed biodegradable article having excellent water resistance and rigidity, which can be used as a food container, and a biodegradable composition required to produce the processed biodegradable article comprising 15-75% by mass starch, 5-50% by mass protein, 3-50% by mass cellulose fiber, 0.5-20% by mass polyphenols such as pyrogallol and gallic acid, and 0-5% by mass sodium chloride.

Abstract: The present invention provides a processed biodegradable article having excellent water resistance and rigidity, which can be used as a food container, and a biodegradable composition required to produce the processed biodegradable article. The respective components are mixed such that the content of starch is 15% by mass or more and 75% by mass or less, the content of protein is 5% by mass or more and 50% by mass or less, the content of cellulose fiber is 3% by mass or more and 50% by mass or less, the content of polyphenols is 0.5% by mass or more and 20% by mass or less, and the content of sodium chloride is 0% by mass or more and 5% by mass or less, and then water is added in the amount of 10 parts by mass or more and 100 parts by mass or less based on 100 parts by mass of the mixture, followed by kneading the mixture using a mixer. Then, the kneaded mixture is press-molded into a predetermined shape such as a cup or a dish, and heat-treated at 120° C. or higher and 180° C.

Abstract: The invention provides a biodegradable film or sheet having water resistance and strength sufficiently. Respective components are mixed so as to form a mixture containing 0% by mass or more and 35% by mass or less of starch, 20% by mass or more and 70% by mass or less of protein, 15% by mass or more and 60% by mass or less of cellulose fibers and 1% by mass or more and 15% by mass or less of urea, then adding 10 or more and 100 or less parts by mass of water to 100 parts by mass of the mixture, kneading the mixture sufficiently with a twin-screw mixer or the like, and rolling the kneaded product under heating at about 120° C. to give a film or sheet with several tens ?m to about 300 ?m in thickness.

Abstract: A gamma-rays measurement method of radionucludes (iodine-131, cobalt-60, etc.) coexisting with radionuclides (nitrogen-13, fluorine-18, cobalt-58, etc.) each emitting a pair of annihilation gamma-rays, particularly in primary water of a nuclear reactor by the use of a gamma-ray spectrometric system which includes a primary detector for detecting the gamma-rays and the one annihilation gamma-rays as pulses, a secondary detector for detecting the other annihilation gamma-rays as pulses, and shield detector for detecting gamma-rays Compton-scattered and escaped from the primary to shield detectors as pulses. The method comprises counting the pulses of the secondary detector in anticoincidence with the pulses of the primary detector, thereby to reject the recording of the annihilation gamma-rays from the primary detector, thus minimizing the annihilation gamma-rays disturbing to the measurement, followed by determining count numbers of the gamma-rays.