摘要:
A Co—Cr—Mo alloy fine wire has superior biocompatibility, corrosion resistance, wear resistance, processability, and flexibility. A manufacturing method and a planar body or the like formed by processing this fine wire. This is a fine wire of diameter of 200 micrometers or less comprising 26 to 31 weight % of Cr, 8 to 16 weight % of Mo, and the remainder of Co and inevitable impurities, in which the degree of roundness (minor diameter/major diameter) of lateral cross section is 0.6 or more, and the internal structure is uniform with the concentration ratio of high Mo concentration phase to low Mo concentration phase of 1.8 or less.
摘要:
The present invention provides a method for manufacturing a biomedical porous article wherein communicability between the pores in the porous article is ensured and a desired porosity can be easily obtained, the method comprising a plate-like thread cluster formation step in which a plate-like thread cluster is obtained by dispersing many metallic threads made of a biomedical metallic material along a flat surface and entangling them; a compressing step of compressing the plate-like thread cluster into a desired thickness; and a sintering step of sintering the plate-like thread cluster.
摘要:
The present invention provides a method for manufacturing a biomedical porous article wherein communicability between the pores in the porous article is ensured and a desired porosity can be easily obtained, the method comprising a plate-like thread cluster formation step in which a plate-like thread cluster is obtained by dispersing many metallic threads made of a biomedical metallic material along a flat surface and entangling them; a compressing step of compressing the plate-like thread cluster into a desired thickness; and a sintering step of sintering the plate-like thread cluster.
摘要:
A production method for a titanium alloy member includes preparing a titanium alloy material for sintering as a raw material of a sintered body; nitriding the titanium alloy material for sintering, thereby forming a nitrogen compound layer and/or a nitrogen solid solution layer in a surface layer of the titanium alloy material for sintering and yielding a nitrogen-containing titanium alloy material for sintering; mixing the titanium alloy material for sintering and the nitrogen-containing titanium alloy material for sintering, thereby yielding a titanium alloy material for sintering mixed with nitrogen-containing titanium alloy material; sintering the titanium alloy material for sintering mixed with nitrogen-containing titanium alloy material, thereby bonding the material each other and dispersing nitrogen contained in the nitrogen-containing titanium alloy material for sintering in a condition in which nitrogen is uniformly dispersed into an entire inner portion of the sintered body by solid solution.
摘要:
An alloy having an α′ martensite which is a processing starting structure is hot worked. The alloy is heated at a temperature increase rate of 50 to 800° C./sec, and strain is given at not less than 0.5 by a processing strain rate of from 0.01 to 10/sec in a case of a temperature range of 700 to 800° C., or by a processing strain rate of 0.1 to 10/sec in a case of a temperature range of 800° C. to 1000° C. By generating equiaxial crystals having average crystal particle diameters of less than 1000 nm through the above processes, a titanium alloy having high strength and high fatigue resistant property can be obtained, in which hardness is less than 400 HV, tensile strength is not less than 1200 MPa, and static strength and dynamic strength are superior.
摘要:
A motion vector detection device includes a motion estimator which detects block motion vectors (MV0) and a motion vector densifier (130). The motion vector densifier (130) further comprises a first motion vector generator (1341), a second motion vector generator (1342-134N), and a motion vector corrector (1371-137N). From each block, the first motion vector generator (1341) generates sub-blocks on a first layer, and generates a motion vector (MV1) for each sub-block on the first layer. In each layer from a second layer through an N-th layer, the second motion vector generator (1342-134N) generates a motion vector (MV7, where k=2 to N) for each sub-block in the layer. The motion vector corrector (1371-137N) corrects the motion vectors of the sub-blocks in layers subject to correction among the first through N-th layers.
摘要:
Motion blur at a pixel of interest in a video signal is corrected adaptively by detecting a motion vector of the pixel of interest, estimating the direction and magnitude of the motion blur from the motion vector, and filtering the video signal at the pixel of interest. The filtering process uses the pixel values of the pixels in a neighborhood of the pixel of interest, clipped so that they do not differ too greatly from the pixel value of the pixel of interest, and low-pass filtering coefficients selected according to the estimated direction and magnitude. The filtered value is used to calculate a gain factor for correcting the pixel value of the pixel of interest. The strength of the correction is adjusted according to the difference between the pixel value of the pixel of interest and the mean pixel value in its vicinity. The adjustment and clipping prevent overcorrection.
摘要:
An image correction method can perform adaptive correction processing to a taken image by a simple construction in a short time, and includes the steps of: computing window region local difference values for a plurality of neighboring pixels, each of the window region local difference values being a difference value between image data of a notice pixel (33a) in a difference value determination region (32) formed of a whole or a part of a screen area of an input image (31) and image data of a neighboring pixel in a window region (33) set around the notice pixel (33a), thereby determining a maximum local difference value which is a maximum value of the window region local difference values in each window region; determining a threshold value reflecting a characteristic of the input image on the basis of the maximum local difference value; producing adaptive filter coefficients for respective pixels of the input image by using the threshold value; and performing filter processing of the input image by using the adaptive filter coefficients.