--in floods reality : notes of Virginia Woolf's Mrs. Dalloway

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Improved Search for νμ→νe Oscillation in a Long-Baseline Accelerator Experiment

journal articl

阿仁鑛山計画

東京帝国大学工科大学種別:卒業論文thesi

等長平行線分図形の場の力についての実験的研究―図形の配置条件の影響について―

1971-03本報告では、まず、一次光源で等長平行線分図形を呈示し、分割錯視配置のこの図形の両端線分以外の線分（分割線分）の数を変化させて、それが図形周囲の小光点の光覚閾値に及ぼす影響を調べた。つぎに、線分数を1，4，16本と一定方向に変化させ、それが図形から種々なる距離を以て呈示される小光点の変位量に及ぼす効果を見てみた。また、上記の3線分図形を一様に面図形とした長方形図形を用いて、横幅の変化が小光点の変位量に及ぼす影響についても検討してみた。結果は以下のごとくである。（１）分割線分数の増加に伴って、各測定位置での小光点の光覚閾値は、ほぼ一定の割合で増加していた。（２）線分数の増加に伴って、各測定位置での小光点の図形への変位量が増加しており、その増加の割合は、本実験の範囲内では、線分数の対数に比例する形になっていた。（３）長方形面図形の横幅の増加も（２）と同様な変位量の変化を示していたが、この場合には、小光点の図形への変位量の水準に差異が見られた。departmental bulletin pape

Crystal Structures of SecYEG in Lipidic Cubic Phase Elucidate a Precise Resting and a Peptide-Bound State

The bacterial SecYEG translocon functions as a conserved protein-conducting channel. Conformational transitions of SecYEG allow protein translocation across the membrane without perturbation of membrane permeability. Here, we report the crystal structures of intact SecYEG at 2.7-A resolution and of peptide-bound SecYEG at 3.6-A resolution. The higher-resolution structure revealed that the cytoplasmic loop of SecG covers the hourglass-shaped channel, which was confirmed to also occur in the membrane by disulfide bond formation analysis and molecular dynamics simulation. The cytoplasmic loop may be involved in protein translocation. In addition, the previously unknown peptide-bound crystal structure of SecYEG implies that interactions between the cytoplasmic side of SecY and signal peptides are related to lateral gate opening at the first step of protein translocation. These SecYEG structures therefore provide a number of structural insights into the Sec machinery for further study.journal articl

静圧浮動ディスク形スラスト軸受の特性

This paper is concerned with the reduction of the power loss of the thrust bearing. A thrust bearing with a disk floated by externally pressurized oil is proposed, and the static characteristics of the thrust bearing are investigated by experiments and simplified analysis in the laminar regime. As a result, the following conclusions are obtained: The power loss of the thrust bearing decreases by approximately one-half of the same-shaped hydrostatic bearing without any disk. The disk is floating nearly in the middle of the oil film. The rotational speed of the disk is about one-half of the shaft rotational speed. The floating position of the disk and the disk rotational speed do not influence the power loss very much.rights: 社団法人日本機械学会 rights: 本文データは学協会の許諾に基づきCiNiiから複製したものである relation: IsVersionOf: http://ci.nii.ac.jp/naid/110002385855/textapplication/pdfjournal articl