常時携帯可能な薄型ディジタルカメラなどへの応用を目指し,複眼結像系に基づく撮像システムが研究されている.我々は,複眼薄型ディジタルカメラシステムの高画質化,画像処理に要求されるハードウェアリソースの縮小を狙い,微小画素を用いた電流合成型CMOSイメージセンサを提案し,開発を行っている.本イメージセンサを利用した場合の画像再構成手法,測距原理について述べる.また,本イメージセンサを利用した薄型ディジタルカメラの高精度組み立て技術として,レーザ干渉計と,アライメントマーカのin situ撮像を併用する手法について述べる.

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The yield strength of beam-to-column joint panel of RHS, CHS are investigated as follows: 1) FEM analysis is carried out in order to investigate the influence of force and the ratio of panel height to width to the relationship between panel shear force and shear deformation angle. 2) Equations of yield strength of the panel are proposed from approximate plastic analysis. As the results, it is presented that the yield strength by proposed estimation is more accurate than the conventional one for each section.

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Plastic flow at the subsurface of two disks in rolling contact under the load is generated in experiment. But the cause of this deformation is not mechanically cleared. Here, simulation analysis using ABAQUS code is studied to clear mechanism of the plastic flow. The following results are obtained. When the contact point of two disks is on the center line of the y axis, the plastic flow is not generated. When the location of one of the disks deviates in the x direction from the y axis, the plastic flow at the subsurface can bc generated by the difference of the deviatoric stress.

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Angiography with a new method using a transbranchial selective catheterization technique was performed on 20 patients. A slim and soft catheter was used for safety reasons and decrease the stress of the patients. Selective angiography was attempted an arteries including the celiac and its branches, SMA, and renal artery. Successful results were obtained in 87% of the patients by using a guidewire with the catheter. We also performed TAE and/or infused drugs into target arteries in 5 patients. Our method was of diagnostic value and made angiography possible for outpatients without complication.

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While viewing animation, audience members actually perceive the visual attributes of each animated character differently due to the disparity in knowledge audiences maintains for each Kansei image. This study combines semisemi-structured intervi ews with the KJ Method to investigate the influence of Kansei images on the design of animation characters. A group of twenty different audiences was recruited for the study. The animation Ne Zha was adopted as a case study. In their descriptions of Kansei images, the respondents adopted an overall descriptive method to a partial one. Results were more consistent for Kansei images with eye eye-catching features and vivid colors. The interviewees’ nationalities, professional backgrounds, and experience viewing t he animation had no significant influence on their Kansei image descriptions. The results of this study provide a reference for animation character designers to transfer script texts into images. Keywords:

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The hydrogen bonding of C-H…X^- type of substituted alkanes in an aprotic solvent has been mainly studied with simple halogenated compounds, ¹⁾ and some glycosyl halides and aryl glycosides.²⁾ Recently, we have investigated the association of BHC³⁾and DDT⁴⁾ analogues with tetraalkylammonium halides, using ¹H-NMRspectroscopy, and found that specific hydrogens in the molecule such as three syn-¥ or three closely located hydrogen form a multiple hydrogen bond; the association constants of β- and δ-BHCwere much larger in their magnitude than that of the single hydrogen bond of chloroform, for example. In view of the possible correlation of such intermolecular association of BHCisomers with their translocation velocity in cockroach, ^{5, 6)} and recent advances in the mode of action of halogenated anesthetics, ⁷⁾ further studies on the effect of configuration and electronegativity of substituents on the multiple hydrogen bond were desired. This paper reports the association of myo- and epi-inositol hexatrifluoroacetates with tetrabutylammonium bromide in acetonitrile.

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cis-およびtrans-1,2-シクロヘキサンジオールをそれぞれ酸触媒の存在下,30%の過酸化水素と反応させると,cis-ジオールからは主としてコハク酸およびアセトアルデヒドが生成されるに対し,trans-ジオールからはこれちの化合物のほかに比較的多量のアジピン酸が得られた。このコハク酸およびアセトアルデヒドの生成はシクロヘキサン環の1a-3a間における水素アニオンの環内1,3-転位によるものとして説明される。

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The standardized karyotype and idiogram of the axis deer (Axis axis, Cervidae) at Khon Kaen Zoo, Thailand were established. Blood samples were taken from two male and two female axis deer. After standard whole blood T-lymphocytes were cultured at 37°C for 72 h in the presence of colchicine, metaphase spreads were performed on microscopic slides and air-dried. Conventional staining, GTG-, Ag-NOR-banding and high-resolution techniques were applied to stain the chromosome. The results showed that the diploid chromosome number of A. axis was 2n=66 and the fundamental number (NF) was 70 in both male and female. The types of autosomes observed were 2 large metacentric, 2 large submetacentric, 2 large telocentric, 6 medium telocentric and 52 small telocentric chromosomes. The X chromosome was a large telocentric chromosome, and the Y chromosome was a small telocentric chromosome. The GTG-banding and high-resolution techniques provided that the respective numbers of bands and locations of A. axis were 246 and 294, and each chromosome pair could be clearly differentiated. In addition, the subtelomeric q-arm of chromosome pair 2 and the telomeric q-arm of chromosome pair 4 showed clearly observable nucleolar organizer regions (NORs) and secondary constrictions. Our results are the first reports of GTG-, high-resolution GTG- and Ag-NOR-banding techniques on this species. The karyotype formula of A. axis is as follows:

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簡便に施行し得る右心補助システムとして, 我々は軸流ポンプを用いた右心補助システムの開発を進めている. 今回成山羊を用いた動物実験において, その操作性, 右心補助効果および短期使用の可能性を検討した. ポンプシステムの挿入は, 末梢側下大静脈に端側吻合した径14mmの人工血管を介して行ったが, 特に問題なく施行し得た. また, 急性実験において, 肺動脈狭窄下, および両心不全下における右心補助効果を認めた. さらに, 正常心成山羊3頭に本システムを挿入し, 操作性および安全性を検討した. 最長48時間の右心補助を施行したが, ピーク血漿ヘモグロビン値は60mg/dl以下であった. 剖検では右心室内膜下に軽度の出血を認めた. 本システムは簡便に使用できる短期右心補助法として有望と考える.

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フラバノンをアルコール中金属ナトリウムで還元して少量のβ-4-オキシフラバン (III) と2'-オキシカルコンをえ, LiAIH₄, NaBH₄で還元を行い, いずれも高収量でIIIをえた。またMeerwein-Ponndorfの還元では85%の収量でα-4-オキシフラバン (I) をえた。フラバノンの接触還元でIIIがえられるが, その還元の際のフラバノンの触媒への吸着状態を考察してIIIのC₂のフェニル基とC₄の水酸基はトランスの関係にあり, かつC₄の水酸基はquasiaxia1に存在し, 1のC₂のフェニル基とC₄の水酸基はシスの関係にありかつC₄の水酸基はquasi equatorialにあることを明らかにした。

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As the second part of an integrated theoretical and experimental study of earthquake-resisting performance of the reinforced concrete columns confined by square steel tube, this paper presents experimental results conducted over twelve reinforced concrete columns confined by square steel tubes having five kinds of wall thickness. The columns were tested under reversed cyclic lateral force while subjected to constant axial load to study the effect of wall thickness of the square steel tubes on the seismic performance of the columns. It is shown that the effect of wall thickness on the earthquake-resisting capacity of the confined columns depends on the applied axial load level; the higher the axial load was, the more significant the effect of wall thickness. Experimental results also indicate that strengthening the square steel tube with inner stiffeners in the potential failure regions of the column could enhance confinement effectiveness of the steel tube significantly. Even under high axial load with axial load ratio n=0.67, the column confined by strengthened square steel tube by inner stiffener with B/t ratio of 118 exhibited very stable response in a manner similar to the columns confined by much thicker square steel tube with B/t ratio of 43.

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抗癌活性白金錯体の nonleaving ligand が,その主要標的である隣接グアニン塩基(GpG)との付加物に及ぼす影響を 1H-NMR により調べた。シクロヘキサンジアミン白金(II)錯体の誘導体であるdichloro (1R,2S,3R)-3-methylcyclohexanediamineplatinum(II)(以下 Pt(RSiR-dach)Cl₂ と略す)とr(GpG)を反応させると,Pt(RSR-dach)が両グアニン塩基の N7 間を交差結合した 2 種類の 17 員環キレート,Pt(RSR-dach)(GpG-N7,N7),が生じる。この 2 種類の異性体の構造を 1H-NMR により明らかにした。さらに, nonleaving ligand である RSR-dach 部分が配位 GpG 部分に及ぼす影響およびGpG 部分が配位 RSR-dach 部分の立体配座に及ぼす影響を調べた。 2 種類の異性体の RSR-dach 部分の立体配座には違いは見られなかった。 GpG 部分については,二つのグアニン塩基を結んでいるリン酸ジエステル結合の立体配座に違いがあることが強く暗示された。抗癌活性白金錯体と GpG との付加物において, nonleaving ligand は GpG のリソ酸ジエステル結合部分の立体配座に影響を与えると考えられる。

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