Abstract: A power storage material is made by using a fiber material of cellulose molecules obtained from wood, plant fibers (pulp), and the like, and capable of storing electric power of direct current and alternating current, and an ultra power storage body has the power storage material. A power storage material includes a fiber mainly including a fiber derived from at least any one of wood, plant fibers (pulp), animals, algae, microorganisms, and microbial products, and having a large number of recesses and protrusions on a surface. The fiber is preferably crystallized/amorphous fibers, is preferably an amorphous fiber having an atomic vacancy, and preferably has a specific surface area of 10 m2/g or more. Preferably, the large number of recesses and protrusions have a diameter of 1 nm to 500 nm.

Abstract: Provided is a method of ultrasound diagnosis, wherein the method includes: coating a surface of a specimen with a transmission medium; and performing the ultrasound diagnosis, wherein the transmission medium has a viscosity of at least 1,000 mPa·s at 25° C. and contains a hydrocarbon compound.

Abstract: Provided is a method of ultrasound diagnosis, wherein the method includes: coating a surface of a specimen with a transmission medium; and performing the ultrasound diagnosis, wherein the transmission medium has a viscosity of at least 1,000 mPa·s at 25° C. and contains a hydrocarbon compound.

Abstract: The present invention provides a transmission medium for ultrasonic diagnosis which comprises a hydrocarbon compound, and/or an ether or ester compound each having a cyclic structure, and has a viscosity of at least 1000 mPa·s at a working temperature. The transmission medium for ultrasonic diagnosis according to the present invention is free from hygroscopicity causing rust generation in a test specimen and worsening the transmission characteristics during use, can impart adhesiveness to a solid within a short period of time, and is particularly excellent in transverse ultrasonic wave transmission, even in a non-contact state in which the test specimen is immersed.

Abstract: There are disclosed a plastic processing method of the pressure of pressureless sintered ceramic body composed of at least one aluminum-containing compound selected from the group consisting of aluminum oxide, aluminum nitride and aluminum oxynitride and at least one hard compound selected from the group consisting of carbides, nitrides and oxides of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten and silicon and mutual solid solutions thereof, the content of said at least one aluminum-containing compound is 5 to 95% by volume, comprising subjecting the ceramic body to plastic deformation at a temperature of 1300.degree. C. or higher, under a stress of 15 kg/mm.sup.2 or smaller and at a strain rate of 10.sup.-3 /sec or less in a reducing atmosphere or in vacuum, and a ceramics-made molded material comprising a composite ceramic body composed of the same as mentioned above.

Abstract: There is disclosed a sintered alloy for decoration comprising2 to 30% by weight of a binding phase comprising one or more elements selected from the group consisting of Fe, Ni, Co, Cr, Mo and W;0 to 10% by weight of a strengthening phase comprising one or more material selected from the group consisting of a metal, an alloy, a metal oxide, a metal nitride and a metal carbide;the balance of a hard phase represented by the formula:(Tia, Mb) (Nw, Cx, Oy)z(wherein M, A, b, w, x, y and z are defined in the specification); andinevitable impurities.The sintered alloy for decoration according to this invention possesses both a decorativeness suitable for decorative members as well as excellent corrosion resistance and mechanical properties.

Abstract: There is disclosed a silicon nitride body consisting essentially of(A) 0.5 to 25% by weight of at least one of oxides, nitrides and oxynitrides of rare earth elements consisting of Sc, Y and lanthanide elements;(B) 0.5 to 25% by weight of at least one of the nitrides and oxynitrides of elements consisting of Be, Mg, Ca, Sr, Ba and Ra in group IIa and/or of nitrides and oxynitrides of elements consisting of B, Al, Ga, In and Tl in group IIIb of the periodic table; and(C) a remainder including Si.sub.3 N.sub.4 and inevitable impurities.The silicon nitride sintered body of this invention has excellent wear resistance and toughness, and is suitable for an industrial production of materials for heat resistant structures.