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Now showing items 1 - 16 of 28

  • Bone-Forming Effect of a Static Magnetic Field in Rabbit Femurs

    Naito, Yoshihito   Yamada, Shuntaro   Jinno, Yohei   Arai, Kazuo   Galli, Silvia   Ichikawa, Tetsuo   Jimbo, Ryo  

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  • Evaluation of Residual Stress Distribution in Shot-Peened Steel by Synchrotron Radiation

    AKINIWA, Yoshiaki   TANAKA, Keisuke   SUZUKI, Kenji   YANASE, Etsuya   NISHIO, Koji   KUSUMI, Yukihiro   OKADO, Hideki   ARAI, Kazuo  

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  • FALSE TOOTH ATTACHMENT AND METHOD AND SPACER FOR FIXING THE SAME

    A false tooth attachment (2) having a high resiliency with respect to a pressing force due to occlusion of teeth and giving a suitable sinking motion to a false tooth at the time of occlusion of teeth, comprising a magnet member (21) adapted to be attracted by a magnetic force to a root cap buried in a dental root, and a cap (22) covering the surface of the magnet member (21) which is on the opposite side of the surface thereof attracted to the root cap, the attachment being buried in a dental plate, the magnet member (21) having in the central portion of a rear surface (21c) thereof a recess (210), in which a projection (223) of the cap (22) of a hard resin is fitted in a contacting state, the projection (223) being elastically deformed and contracted due to an occlusion pressure, so that a circumferential portion (222) integrally molded with the body (22) of the cap (22) is moved slidingly on a side circumferential surface (13) of the magnet member (21) to cause the thickness of the false tooth attachment (2) to decrease, whereby the false tooth suitably sinks at the time of occlusion of the teeth to improve the resiliency and sense of use of the false tooth.
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  • Sin2 ψ stress measurement method with maintaining probing depth

    Yanase, Etsuya   Zolotarev, Konstantin Vladlmirovich   Nishio, Kozi   Kusumi, Yukihiro   Arai, Kazuo   Nakagawa, Shigetomo  

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  • ENERGY ACQUISITION AND NUCLEOTIDE TRANSFORMATION METHOD

    [Problem] To acquire energy safely and with high efficiency, to decontaminate radioactive contaminants with high efficiency, or to generate rare metals at a low cost. [Solution] According to "trinucleon theory," in which the atomic nucleus of an element comprises protons, neutrons, and a third nucleon A0 that has linking functionality between α-vesicles, by controlling the number of third nucleon A0sconstituting the atomic nucleus of a substance, energy is acquired from a substance comprising elements having an atomic number of at least 3, and nuclide transformation or nucleosynthesis of a single or plurality of substances is carried out.
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  • HEADUP DISPLAY SYSTEM OF HIGH VISIBILITY

    A headup display system of high visibility adapted to reflect a display light from display device (12) in the vicinity of the position of front wind shield (7) and attain display for driver by the virtual image by the reflected light, which headup display system comprises masking enlarged part (2) provided by enlargement of portion of masking part (2a) covering the periphery of the front wind shield (7) so that not only is the display light from the display device (12) at portion of the front wind shield (7) corresponding to the masking enlarged part (2) reflected but also the masking enlarged part (2) functions as a background area of display.
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  • The presence of candidate tumor suppressor gene loci at chromosome 3p for oral squamous cell carcinomas

    Arai, Kazuo   Shibahara, Takahiko   Yamamoto, Nobuharu   Noma, Hiroyasu  

    We investigated the short arm of chromosome 3 (3p) for allelic imbalances, including loss of heterozygosity (LOH) and microsatellite instability (MSI) in 40 primary oral squamous cell carcinomas (SCCs) using 10 microsatellite markers and constructed a deletion map for this chromosome arm. We examined 40 primary tumor tissues, 40 corresponding normal tissues, and seven lymph node metastatic tissues. LOH at one or more loci was found in 24/40 (60%) of tumors. Deletion mapping of these tumors revealed at least three discrete, commonly deleted regions on the chromosome arm. Furthermore, we detected MSI in six of those tested cases (15%). We compared our results with the clinicopathologic features. A number of sites displaying LOH at 3p could be detected in early stage lesions, and the frequencies of LOH tended to be higher in later clinical stages. Thus, the frequent LOH was observed from early stage in pTNM classification. An unknown tumor suppressor gene in the genesis of oral squamous cell carcinoma may exist in 3p.
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  • HEAD-UP DISPLAY APPARATUS

    Provided is a head-up display apparatus that reduces troubles caused by separation of a display image in a horizontal direction. A head-up display apparatus (1) is characterized by including: a display source (2) provided inside an instrument panel (6); an opening part (7) which is provided in the instrument panel (6) and through which display light from the display source (2) is discharged; and an opening part cover (5) provided around the opening part (7), wherein at both end parts (51, 53), in the horizontal direction, of the opening part cover (5), the color or the reflectance thereof changes from the opening part sides (52a and 54a) toward the outer sides (52b and 54b).
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  • Aluminum or phosphorus co-doping effects on the fluorescence and structural properties of neodymium-doped silica glass

    Arai, Kazuo   Namikawa, Hiroshi   Kumata, Ken   Honda, Tatsutoku   Ishii, Yoshiro   Handa, Takashi  

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  • Effects of Densification on Electrical and Optical Properties of Chalcogenide Glasses

    Arai, Kazuo   Hattori, Yoshio   Namikawa, Hiroshi   Saito, Shogo  

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  • Electrical Properties of Silver Doped As-Se Glasses

    Arai, Kazuo   Kuwahata, Takao   Namikawa, Hiroshi   Saito, Shogo  

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  • Photoluminescence in Ge-S Glasses

    Arai, Kazuo   Itoh, Uichi   Namikawa, Hiroshi  

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  • BUSH

    Disclosed is a bush wherein a coupling pin (40) extending in the axial direction of an inner tube (32) is provided on the inside of the inner tube (32) in the radial direction, an expanded portion (42) which expands outward in the radial direction of the coupling pin (40) is provided on the coupling pin (40), shoulder portions (42a) are provided on both sides of the expanded portion (42) in the axial direction, a bearing (50) which guides the rotation of the coupling pin (40) relative to the inner tube (32) is provided between the inner tube (32) and the expanded portion (42), bent portions (33) which are bent inward in the radial direction of the inner tube (32) are provided on both sides of the inner tube (32) in the axial direction, and elastic members (60) are respectively incorporated in spaces between the bent portions (33) and the shoulder portions (42a).
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  • Evidence for pair generation of an\r E\r ’ center and a nonbridging oxygen-hole center in γ-ray-irradiated fluorine-doped low-OH synthetic silica glasses

    Arai, Kazuo   Imai, Hiroaki   Isoya, Junichi   Hosono, Hideo   Abe, Yoshihiro   Imagawa, Hiroshi  

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  • Effect of reduced pressure on 3C-SiC heteroepitaxial growth on Si by CVD

    Ishida, Yuuki   Takahashi, Tetsuo   Okumura, Hajime   Arai, Kazuo   Yoshida, Sadafumi  

    The difference between atmospheric pressure (AP)CVD and low pressure (LP)CVD in 3C-SiC heteroepitaxial growth on Si(001) surfaces has been investigated. It is found that the difference in the growth mode results in a difference in the secondary nucleation rate. It is suggested that the increase of the secondary nucleation rate causes 2D island growth on {111} faces, and that these 2D islands play an important role in the process of elimination of planar defects. A simulation of the homogeneous chemical reaction in the gas phase suggests that the origin of the difference in the secondary nucleation rate can be attributed to the difference in the mole fraction of atomic hydrogen.
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  • Short-Circuit Capability of SiC Buried-Gate Static Induction Transistors: Basic Mechanism and Impacts of Channel Width on Short-Circuit Performance

    Yano, Koji   Tanaka, Yasunori   Yatsuo, Tsutomu   Takatsuka, Akio   Arai, Kazuo  

    Fundamental short-circuit operations of silicon carbide static induction transistors with buried-gate structures (BGSITs) were experimentally clarified, with subsequent device simulations. The impacts of channel width and source length on short-circuit capabilities were investigated. In particular, a design concept of the channel width was proposed to improve the short-circuit energy without a serious increase in ON-resistance. The maximum short-circuit capability of the fabricated BGSITs was 18 J/cm(2) at room temperature, which shows excellent performance compared with that of conventional Si insulated-gate bipolar transistors.
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