Abstract Reaction of the nitrile oxides (III) (generated in situ from the nitro compounds (I)) with the aziridine (II) yields the title compounds (IV).
せん断補強筋の定着不良を生じたせん断破壊するRCはりのせん断耐力の評価法の検討を行い,既往の実験結果および,数値解析を用いてその適用性について検討を行った.その結果,検討した評価法により,斜め引張破壊するはり,せん断圧縮破壊するはりのいずれにおいても,定着不良を生じたせん断補強筋の効果を概ね評価できることが確認された.また数値解析により,定着不良領域や付着強度,供試体寸法を解析パラメータとしてせん断破壊挙動の評価を行った.その結果,せん断補強筋の定着不良の影響は,斜め引張破壊するはりでは,引張側の支点近傍において,せん断圧縮破壊するはりでは,引張側の支点近傍,および圧縮側の載荷点近傍において生じたとき,その影響が構造物全体の挙動に対して支配的であることが確認された.
: Design of concrete structures subjected to impact loads is usually based on design impact loads, which are characteristic data obtained empirically. However, concrete structures under impact loads, unlike those under static loads, exhibit highly complicated failure modes that change with time by the influence of stress waves. A 3-D layered nonlinear dynamic finite element method (FEM) was applied to evaluate the ultimate behavior and failure modes of reinforced concrete (RC) slabs subjected to soft impact loads. Immune algorithm is combined with a 3-D layered nonlinear dynamic FEM analysis for the purpose of proposing the design of RC slabs subject to soft impact loads. The results give evidence that it presents complicated failure modes, and that Immune algorithms can be applied to the design of RC slabs effectively INTRODUCTION DEVELOPMENT OF DESIGN SUPPORT SYSTEMS CONCLUSIONS REFERENCES
X-Ray structure determination of a dibromo-derivative of MS-3, a glyoxalase I inhibitor produced by a mushroom, was carried out by the heavy atom method. A total of 2713 independent reflections were measured. The crystal belongs to space group P_??_ with the lattice constants, α=13.892 (7) and c=12.686 (7) Å. The observed density indicates that four structure units of C21H22O7Br2•1/2Na•2H2O are contained in a cell. The refinement of the structural parameters was carried out to an R value of 0.077 by the block-diagonal least-squares method. The result confirmed the structure of MS-3 as that had been proposed on the basis of chemical studies.
