Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a metallic material in solid-liquid coexisting state, by which finer spheroidized grains are obtained, and also the merits such as the improvement of energy efficiency, the saving of producing cost, the improvement of mechanical properties, the simplification of casting process and the shortening of producing time are realized. SOLUTION: Electromagnetic field is impressed and after pouring molten metal into a vessel, the impression of the electromagnetic field to the vessel is completed. The molten metal poured into the vessel is cooled and the metallic material in the solid-liquid coexisting state is formed. In a process for cooling the molten metal, the temperature is wholly and uniformly lowered from the wall surface to the central part of the vessel without developing the latent heat caused by the formation of the solidified layer at the initial stage. The molten metal can rapidly be cooled to not higher than the liquidus temperature within such short time as about 1-10 sec after pouring the molten metal, and many crystal nucleus can uniformly be generated over the whole range. The metallic material having fine and uniform micro-structure can be produced. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a method for continuously synthesizing a phosphor in supercritical water and to provide a phosphor synthesis apparatus used therefor. SOLUTION: The method for synthesizing the phosphor under conditions of supercritical water comprises the step (1) of mixing and reacting a water-soluble metal salt solution containing a host and an activator to be doped into the host in amounts conforming to the stoichiometric ratio of the phosphor to be produced to convert the water-soluble metal salt solution into a hydroxide salt solution, the step (2) of mixing and reacting the hydroxide salt solution with preheated water to keep the temperature of the reaction mixture at 150 to 200°C, the step (3) of introducing the reaction mixture into the main reactor kept in a supercritical water state to synthesize particles of the phosphor to be produced, and the step (4) of recovering the synthesized phosphor particles by condensation, filtration, and drying. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a noise elimination method of an animation data which makes a movement detection easy at the same time when it reduces the number of frames used by a time domain filtering. SOLUTION: The noise rejection method of moving an animation digital data, includes a method of performing an interspace region filtering method, the time domain filtering method and this interspace region filtering method one by one. The interspace region filtering method introduces a weighting which is adapted for a noise for classifying a cotour line in a YCbCr region, This time domain filtering method introduces the time domain filtering of a movement/scene change detection base with which overall movement was compensated, a movement detection considering luminance/hue differences of the movement simultaneously by the time domain filtering, and a weighting which is adapted for the noise for the movement detection by the time domain filtering. In execution of this interspace region filtering method and the time domain filtering method, this interspace region filtering method is first executed and then this time domain filtering is performed using the execution result. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a generation device for side lobe suppression signal, and an uplink communication system, employing it in an Orthogonal Frequency Division Multiplexing connection system. SOLUTION: The uplink communication system has a signal-mapping portion for mapping a data stream as which a transmitting end is inputted in series, by QPSK or QAM signal, a serial/parallel conversion portion for translating a serial data stream supplied from the signal-mapping portion into a parallel data, a generation portion for side secondary leaf suppression signal assigning to a subcarrier of a guard band, forming an upper part and a lower part of the side secondary leaf suppression signal which are obtained from the inner product of a transmitted signal vector classified by each user and an optimul weighted vector, an IFFT section for translating a user transmitted signal, assigned to each subcarrier of predetermined accessary band and the upper part and the lower part of the side secondary suppression signal assigned to the subcarrier of the guard band, for transforming it into an inverse fast-Fourier transform, and a guard band insertion and parallel/serial translator for translating to a serial data, after inserting the guard band in data supplied from the IFFT. COPYRIGHT: (C)2005,JPO&NCIPI