Musashino Academia Musicae

Evaluation equations for ultimate shear capacity and allowable shear strength of SFRC shear walls were proposed, and their validity was examined using the results of previous experiments and analysis. It was confirmed that the experimental maximum shear capacity could be evaluated accurately and on the safe side by using an equation that accumulates the shear strength that steel fibers can bear to the shear capacity equation (truss-arch mechanism) for RC shear walls. In addition, it was confirmed that the experimental maximum capacity could be simulated using a finite element analysis model that simplified the SFRC material properties.

本研究では，既設盛土の耐震診断において弱点箇所を抽出するスクリーニングへの活用を目的として，既設盛土材料のせん断強度を概略的に設定する手法を検討した。概略診断に使用する物性値は土質ごとに検討し，粘性土は既設盛土の採取データから求めた平均値と標準偏差の差分から，砂質土は粒度特性と密度を考慮した内部摩擦角の推定値と不飽和強度特性を考慮した粘着力からせん断強度定数を設定する手法を提案した。提案手法の適用範囲を検討するため，鉄道盛土の設計に用いる円弧すべり法による安定解析を行った結果，粘性土は盛土高さ 4.5 m 程度まで，砂質土は分級された土質材料において，密度が高い場合では盛土高さ 6.0 m 程度まで L1 地震時の盛土体の安定を満足し，実際の既設盛土の耐震性能と整合する適用範囲が明らかとなった。

The intensive pursuit for quantum advantage in terms of computational complexity has further led to a modernized crucial question of when and how will quantum computers outperform classical computers. The next milestone is undoubtedly the realization of quantum acceleration in practical problems. Here we provide a clear evidence and arguments that the primary target is likely to be condensed matter physics. Our primary contributions are summarized as follows: 1) Proposal of systematic error/runtime analysis on state-of-the-art classical algorithm based on tensor networks; 2) Dedicated and high-resolution analysis on quantum resource performed at the level of executable logical instructions; 3) Clarification of quantum-classical crosspoint for ground-state simulation to be within runtime of hours using only a few hundreds of thousand physical qubits for 2d Heisenberg and 2d Fermi-Hubbard models, assuming that logical qubits are encoded via the surface code with the physical error rate of p = 10−3. To our knowledge, we argue that condensed matter problems offer the earliest platform for demonstration of practical quantum advantage that is order-of-magnitude more feasible than ever known candidates, in terms of both qubit counts and total runtime.

This study clarifies the effects and issues brought about by the local rule for parking lots in Ginza through reviewing the content of the local rule for parking lot obligation, the direction of revision currently under discussion, and the status of the development of obligatory parking lots. Furthermore, through a field survey, impact of these parking lots on street spaces in Ginza area is examined, and the future prospects for urban space formation in the event that the local rule is revised were to be presented.

Abstract Background/purpose of the study: Mac-2-binding protein glycosylation isomer (M2BPGi), a biomarker for liver fibrosis, is influenced by various etiologies. Here, we aimed to investigate clinical factors that improve the accuracy of liver cirrhosis (LC) diagnosis based on quantitative M2BPGi (M2BPGi-Qt), regardless of etiology. Methods: In total, 1,373 patients with chronic liver disease (CLD) were recruited. Weassessed the correlation between fibrosis stage and M2BPGi-Qt levels among CLD etiologies. If there was no correlation between the fibrosis stage and M2BPGi level in a specific etiology of CLD, we evaluated the clinical factors influencing the M2BPGi-Qt level in that specific etiology. Subsequently, we created an algorithm to detect LC based on M2BPGi-Qt, considering an influencing factor other than fibrosis. Results: In virus hepatitis, non-alcoholic fatty liver disease, and primary biliary cholangitis, the M2BPGi-Qt levels increased liver fibrosis progression. In autoimmune hepatitis, no significant association was observed between the fibrosis stage and M2BPGi-Qt level. However, liver inflammation positively correlated with the M2BPGi-Qt levels. Considering liver inflammation, we established an algorithm, M2BPGi-Qt, to determine the alanine aminotransferase-to-platelet ratio (MAP-R) in LC. The area under the receiver operating characteristic curve (AUC) of the MAP-R index was 0.840. The AUC of MAP-R was higher than that of the M2BPGi-Qt for detecting LC. Conclusions: New quantitative measurement system for M2BPGi reveals liver inflammation complicates liver cirrhosis diagnosis. The algorithm based on the M2BPGi-Qt level demonstrates a high accuracy for LC diagnosis.