Publications

Preparation of porous carbons from cypress using super-heated steam: III. Performance in electric double layer capacitors

ChemInform Abstract: Gualamycin (I), a Novel Acaricide Produced by Streptomyces sp. NK11687. Part 2. Structural Elucidation.

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

ChemInform Abstract: A NEW SYNTHETIC ROUTE TO 2‐OXAZOLIDONES

Abstract Beim Erhitzen der Aziridine (I) mit Kohlendioxid in Gegenwart von Jod erhält man die Oxazolidone (II).

Tritium Release Behavior from Steels Irradiated by High Energy Protons

Thermal desorption behavior of tritium has been investigated for SS316 and F82H irradiated by 580MeV proton (SINQ-target3) up to 5.0 ∼5.9 dpa and 6.3∼9.1 dpa, respectively, in order to understand tritium transport in the irradiated materials. While the tritium release has only one peak at 670 K from irradiated SS316, that has two peaks at 510 K and 670 K from irradiated F82H. Those results indicate that only one kind of trap site exists in the SS316, and at least two kinds of trap site exist in F82H. As the results of tritium transport analysis of tritium release behavior, it was found that the trap site at 670 K for SS316 and F82H could be controlled by the same trap mechanism. As to the chemical form of tritium released from the steels, 1/2 and 1/3 of tritium was release as water vapor form from SS316 and F82H, respectively. It could be attributed to the growth of surface oxide on the metal surfaces during the TDS.

Epoxyquinomicins A and B, New Antibiotics from Amycolatopsis.

STANDARDIZATION OF SESIMIC RESISTANCE DESIGN PROCEDURES AND UNIFIED VISUALIZATION OF STRUCTURE RESPONSE FOR IMPROVEMENT OF ENGINEERING ABILITY

地方自治体の防災担当者が地震被害を予測するための技術力を向上させることは地震防災促進に直接の効果がある. 技術力向上の方策として本研究は種々の耐震設計の共通化と構造物地震応答の可視化を検討した. 情報科学の手法を使ってフローチャートを再構成し, 共通の枠組みの中で土木・建築構造物の代表的な耐震設計を理解できるようにした. 応答の可視化を行うため, さまざまな解析手法を統合して実行するコンピュータシステムを検討した. 解析手法とシステムの通訳プログラムを作成することで統合を実現し, さらに, 通訳プログラムを自動作成する人工知能の検討も行った.

1P047 Modeling of Loops in Protein Structures

Improvement of tritium accountancy technology for ITER fuel cycle safety enhancement

In order to improve the safe handling and control of tritium for the ITER fuel cycle, effective in situ tritium accounting methods have been developed at the Tritium Process Laboratory in the Japan Atomic Energy Research Institute under one of the ITER-EDA R&D tasks. The remote and multilocation analysis of process gases by an application of laser Raman spectroscopy developed and tested could provide a measurement of hydrogen isotope gases with a detection limit of 0.3 kPa analytical periods of 120 s. An in situ tritium inventory measurement by application of a `self-assaying' storage bed with 25 g tritium capacity could provide a measurement with the required detection limit of less than 1% and a design proof of a bed with 100 g tritium capacity.

Numerical evaluation of the internal fracture mechanism of the single <scp>PBL</scp> shear connector considering the effects of position and strength of the transverse rebar

Abstract The perfobond (PBL) shear connector reinforced with transverse rebar effectively contributes to sufficient ductility, bearing capacity, and anti‐fatigue behavior to hybrid structures. The construction practice involves the placement of the transverse rebar at the bottom position within the concrete dowel, whereas past studies employed transverse rebar in the center of the dowel; hence, there exists a gap between literature and design practices. Furthermore, there is no specific information in the design guidelines for hybrid structures on the influence of the position of the transverse rebar. Therefore, the current research deals with the analytical investigations employing the coupled Rigid Body Spring Model (RBSM) and the nonlinear solid Finite Element Method (FEM) that encompass the internal fracture behavior of concrete with the various parameters of transverse rebar, particularly the position and strength, to recognize the failure mechanism. It was determined that the numerical model accurately captured the test shear capacity and failure modes. The internal failure process of a specimen with transverse rebar at the bottom position, identical to actual field practice, revealed that as the height of the concrete region above the rebar rises, more compressive stresses in a trapezoidal manner are being generated, leading to an enhancement of the deformation capacity. Furthermore, it was confirmed that the specimen with the transverse rebar inserted at the bottom generates the greatest axial force, which is followed by the greatest shear capacity.

Molecular surface and physicochemical property in the phosphate-binding site.

Numerical investigation on bond behavior between FRP bar and concrete using 3D RBSM with BPE bond-slip model

Experimental Study on the Effect of Different Shear Reinforcement Shapes on Shear Failure Behavior and Internal Crack Pattern of RC Beams

Various types of shear reinforcement are used for example general closed stirrup and reinforcement bar with mechanical anchor. However, most standards and specifications take only the cross-sectional area of the vertical components of the reinforcement components into account when determining their effect, such as on shear crack development and shear strength. Consequently, the full effect of different shear reinforcement shapes on the shear failure behavior of reinforced concrete (RC) beams is not clear. In this study, differences in shear failure behavior of RC beams using three types of shear reinforcement (closed stirrups, U-shaped stirrups, and rod-shaped reinforcements with mechanical anchor) were investigated by carrying out loading experiments. The three-dimensional displacement distribution on the side faces of each beam and the internal crack patterns were obtained. It was clarified that there is a clear difference in internal crack pattern and spreading deformation behavior according to shear reinforcement shape, and this influences the shear strength of the RC beam.

MODELING ON NONLINEAR CYCLIC BEHAVIOR OF REINFORCING BARS. IN: FINITE ELEMENT ANALYSIS OF REINFORCED CONCRETE STRUCTURES

This paper presents buckling analysis of the reinforcing bars performed by the finite element method using large deflection theory of layered beam elements. The buckling behavior is considered under monotonic and cyclic loading. Based on the analytical results, several indices such as the buckling stress, the residual stress and the buckling mode are used to characterize the buckling behavior. Based on these results, a stress-average strain relationship of the reinforcing bars is developed accounting for inelastic buckling. The model features a post-buckling softening branch, since the buckling behavior is considered in the form of a material property, which is an easy method to introduce the effect of buckling in the finite element method.

Dynamic Buckling Test Using Scale Model for LMFBR Structure

Breeding of winged bean variety 'Urizun' and establishment of its cultivation in Japan

Isolation, racemization and absolute configuration of siderochelin A.

3D-spirogram: A combinatory system of image analysis and computational mechanics for assessing the pulmonary function

3P001 The Changes of Database Enrichment for in silico screening by using modeling proteins