摘要:
In the surface structure of an article 7 according to the present invention, a plurality of convex portions 11 are so disposed on a surface 9 as to have intervals relative to each other and a plurality of fine convex portions 21 having a diameter d and a height h smaller than those of the concave portion 11 are formed on the surface of at least the edge portion 15 of the concave portion 11. By this, when a hand touches the surface 9 of the article 7, the proper number of convex portions 21 abut on a linear object 25 constituting a fingerprint 23 of a hand's finger, to thereby allow the human being to obtain a delicate-and-soft touch feeling.
摘要:
Provided is a fiber reinforced cement based mixed material capable of securing high tensile strength and high toughness even after development of a crack. A fiber reinforced cement based mixed material contains cement, a mineral admixture, water, a chemical admixture, aggregate particles, and fibers, the aggregate particles contained in the fiber reinforced cement based mixed material in a proportion of 50 to 95% in terms of a weight ratio to the total weight of the cement and the mineral admixture, wherein a mean particle diameter of the aggregate particles is 0.2 to 0.8 mm, and at least some of the fibers is formed to be a bumpy fiber having asperities formed in the surface thereof, and a ratio (h/H) of a depth h of each of recessed portions among the asperities of the bumpy fiber to a smallest cross-sectional diameter H thereof is 0.05 to 0.8.
摘要:
Disclosed is a surface structure of an article (1) including multiple protrusions (3) on the surface. A height H of the protrusions (3) is equal to or larger than 5 μm, and equal to or smaller than 32 μm, as well as at least one of a distance P between each two neighboring protrusions (3) and a distance W between each neighboring two of recesses (5) formed between the protrusions (3) is larger than the height H of the protrusions (3).
摘要:
An initial layout of one pitch unit of a tire tread pattern is decided. A finite element model of a tire is created by developing the one pitch unit of the initial layout into a plurality of pitches in the circumferential direction of the tire to carry out a structural analysis. Evaluation indices calculated through the analysis are integrated into one pitch unit for each element associated with the indices. The elements are classified according to the magnitudes of the integrated evaluation indices to determine a plurality of classes to which elements subject to removal belong, and elements to be removed are selected from each of classes thus determined. Elements to be added are selected from among the elements which have been removed to decide a layout of the current generation. A finite element model of a tire is created by developing the layout of the current generation into a plurality of pitches to carry out a structural analysis, and convergence of an objective function is determined.
摘要:
An optical unit and image pickup apparatus capable of performing “auto focus function” and “image shake correction function” and characterized by easy assembling, compact configuration, high performance and reduced costs is provided. The optical unit and image pickup apparatus are provided with a polymer actuator to move an optical device, whereby performing auto focus function and image shake correction function can be performed. The polymer actuator is provided with electric wirings for image pickup device, thereby reducing the number of circuit board used for electric wiring of the image pickup device, with the result that an optical unit and image pickup apparatus characterized by easy assembling, compact configuration, high performance and reduced costs are provided.
摘要:
There is provided a multi-shaft rotary creel where the degree of freedom for warping can be further improved as compared with the conventional single shaft rotary creel and occurrence of tension fluctuations can be prevented. There are further provided a sample warper and a warping method where warping can be performed efficiently by installing the multi-shaft rotary creel. The multi-shaft rotary creel comprises: a base body; a main shaft rotatably mounted on the base body so as to project forward, a plurality of supporting shafts rotatably mounted on a forward projecting portion of the main shaft; and a plurality of bobbins mountable on each of the supporting shafts, which is installed opposing to a sample warper with a plurality of yarn guides, and wherein, while the main shaft or each of the supporting shafts rotates in synchronism with rotation of the yarn guides, simultaneous warping of plural yarns by the main shaft or each of the supporting shafts can be performed.
摘要:
An inclined function material is formed with an iron layer on a surface of a carbon material. This material can be used in a carbon base member and does not limit the choice of desired characteristics in a carbon base member. The process by which the carbon base member is formed also ensures the iron layer is integrated firmly with the surface of the carbon material. A suitable amount of an iron powder having a particle diameter of 5 to 15 &mgr;m is placed directly on the surface of a carbon material, which is sintered in advance under suitable conditions, and stuck to the surface uniformly and flatly. The iron powder and the carbon material are sintered at 1000° C. to 1300° C. and preferably 1050 to 1150° C. for 1 to 2 hours and preferably about 1.5 hours to form a carbon base member in which the iron layer is formed on one surface of the carbon base member.
摘要:
An electronically controlled sample warper having a yarn exchanging mechanism is provided which comprises a rotary creel supporting a plurality of bobbins around which different kinds and/or the same kind of yarns are wound and a bobbin station supporting a plurality of bobbins on which different kinds and/or the same kind of yarns are wound in a standby state. With this construction, it is possible to employ various kinds of yarns and perform yarn exchanging thereof unlimitedly, thus enabling various pattern warping to be freely performed with the reduced warping time.
摘要:
With a method for constructing a water intake pipe, a vertical shaft 10 is constructed, and a shield tunnel 12 is constructed by causing a shield driving machine to advance from the vertical shaft 10 toward a seashore by breaking the wall of the vertical shaft 10. The tunnel 12 becomes a water intake pipe after the tunnel is constructed, and is built by annularly assembling segments 14 one after another at the rear side of the shield driving machine in line with the advancement thereof. Two types of segments 14, RC segments 18 and ductile segments 20, are used. The segments 20 are provided with water intake pores clogged by clogging members. After the tunnel 12 is constructed, workmen enter the shield tunnel 12 with compressed air supplied thereinto, and remove the clogging members of the ductile segments 20. After the clogging members are removed, sea water is gradually taken into the tunnel 12 through the water intake pores 20c while lowering the compressed air pressure so that sea water does not rush into the tunnel 12.
摘要:
A camera able to record and reproduce a photographed image includes a storage medium for storing a photographed image, and a reproduction device for reproducing the photographed image. The reproduction device has a reproducing head movable between a contraction position and a withdrawal position. Another camera has a first mode where photography is executed and a photographed image is recorded to a second mode where the recorded image is printed. Another camera has a printer device for printing a photographed image recorded on a recording medium on external reproduction paper, the printer device including an opening portion facing the external reproduction paper, and a presser member positionable above the opening portion for pressing the external reproduction paper.