著者
Maeda Yoshitomo Ebara Masatoshi Fujimoto Ryuichi HAYASHI Takayuki INOUE Hirohiko ISHISAKI Yoshitaka MORI Hideyuki OKADA Shunsaku SUZUKI Kensuke UCHIYAMA Yasunobu SERLEMITSOS Peter J. SOONG Yang CHAN Kai-Wing OKAJIMA Takashi LEHAN John P. ITOH Kei ITOH Akiharu YOKOYAMA Yushi ITOH Yumi NAKAMURA Ryoko ISHIDA Manabu HAYAKAWA Akira INOUE Chiaki OKUMA Satoshi KUBOTA Ren SUZUKI Masaki OSAWA Takeyuki YAMASHITA Koujun KUNIEDA Hideyo TAWARA Yuzuru OGASAKA Yasushi FURUZAWA Akihiro TAMURA Keisuke SHIBATA Ryo HABA Yoshito NAITOU Masataka MISAKI Kazutami IIZUKA Ryo
出版者
一般社団法人日本物理学会
雑誌
Progress of theoretical physics. Supplement (ISSN:03759687)
巻号頁・発行日
no.169, pp.322-325, 2007-12-19

We present the in-flight performance of the X-ray telescopes (XRTs) onboard Suzaku. The imaging capability is significantly improved over the ASCA XRT, which had half-power diameters of 3'.6, to 1'.8-2'.3 for all four XRT-I modules. Contemporaneous fits of a power law to all the XIS spectra of the Crab Nebula taken at the two standard observing positions (XIS/HXD-default positions) gives a flux consistent with that obtained by Toor & Seward (1974) to within〜2%. The pre-collimator on the top of each XRT module successfully reduces the intensity of the stray light from the 20' and 50'-off directions down to the level of pre-flight expectations. We also present the thermal wobbling of the satellite. The wobbling causes the alignment error between the XRT-XIS system and the attitude and orbit control system. The wobbling of the alignment is as large as〜1arcmin. In the currently processed data, the absolute coordinate also has systematic uncertainty of up to〜1arcmin.
著者
藤原 源吉
出版者
社団法人日本材料学会
雑誌
材料 (ISSN:05145163)
巻号頁・発行日
vol.45, no.1, pp.2-8, 1996-01-15
被引用文献数
13

This article describes the findings of research for some recent transport airplane's accidents related to fatigue cracks. One is a B747SR's accident due to crack initiating at the fastener holes (to say Multiple-Site Damage). The other describes the crash of UAL's DC10-10 (N1819U), in Sioux City, Iowa, U.S.A., on July 19, 1989, which experienced a catastrophic failure of the No.2 tail-mounted engine during cruise flight. The third explains the in flight separation of the No.2 engine and engine pylon from B747-100F, shortly after departure from Anchorage International Airport, Anchorage, Alaska, on March 31, 1993. As a result of investigation for B747-100F's accident, National Transportation Safety Board made some important recommendations (One is to amend the design load requirements of Title 14 Code of Federal Regulations Part 25 to consider multiple axis loads encountered during severe turbulence) to the Federal Aviation Administration. Also, current aging airplane service data have identified that there are more cracked airplanes with increasing fleet edge, and possibly several fatigue cracks in some of the cracked airplanes. Especialy, MSD helped focus the attention of the aeronautical field on the problems of operating an aging transport airplanes. Therefore, FAA proposed to rivise the Advisory Circular No.25·571-1A (Damage tolerance and fatigue evaluation of structure) on 3/5/1986. This article describes one operator's viewpoint on the means to maintain the safety of aircraft structures in consideration of the revised structural fatigue evaluation standards.
著者
ゲイツ ジョン 長谷山 美紀 北島 秀夫
出版者
一般社団法人映像情報メディア学会
雑誌
映像情報メディア学会技術報告 (ISSN:13426893)
巻号頁・発行日
vol.24, no.10, pp.49-54, 2000-02-03

この論文は高精度に実時間で円を抽出するアルゴリズムを示す。このアルゴリズムは複雑な入力画像から完全な円と円形の円弧を抽出することができる。アルゴリズムが450MHzのペンティアムIIプロセッサでたくさんの256×256の8ビット画像を実験した。その実験の平均のフレームレートは一秒で69フレーム以上である。このアルゴリズムの高精度を照明するために実験の結果を示す。
著者
ゲイツ ジョン 長谷山 美紀 北島 秀夫
出版者
一般社団法人電子情報通信学会
雑誌
電子情報通信学会技術研究報告. CS, 通信方式 (ISSN:13426893)
巻号頁・発行日
vol.99, no.510, pp.73-78, 1999-12-16

この論文は高精度に実時間で多角形を抽出と分類するアルゴリズムを示す。このアルゴリズムは複雑な入力画像から凸形、凹形両方の多角形を抽出することできる。このアルゴリズムは三角形を五つの種類に分類することできる。四辺形を六つの種類に分類することできる。アルゴリズムが450MHzのペンティアムIIプロセッサでたくさんの256×256の8ビットを実験した。その実験の平均のフレーム率は一秒で69フレーム以上である。このアルゴリズムの高精度を証明するために実験の結果を示す。
著者
ゲイツ ジョン 長谷山 美紀 北島 秀夫
出版者
一般社団法人電子情報通信学会
雑誌
電子情報通信学会技術研究報告. EID, 電子ディスプレイ (ISSN:09135685)
巻号頁・発行日
vol.99, no.608, pp.49-54, 2000-02-03

この論文は高精度に実時間で円を抽出するアルゴリズムを示す。このアルゴリズムは複雑な入力画像から完全な円と円形の円弧を抽出することができる。アルゴリズムが450MHzのペンティアムIIプロセッサでたくさんの256×256の8ビット画像を実験した。その実験の平均のフレームレートは一秒で69フレーム以上である。このアルゴリズムの高精度を証明するために実験の結果を示す。
著者
長谷川 淳一 市橋 秀夫
出版者
社会経済史学会
雑誌
社會經濟史學 (ISSN:00380113)
巻号頁・発行日
vol.67, no.6, pp.689-704, 2002-03-25

Until the late 1980s, the British Labour Party under the leadership of Gaitskell and Wilson was perceived to have been much less successful than the Party had been under Attlee. But in recent years, with the emergence of 'New Labour', more sympathetic analyses have gained ground. This article will reassess the various interpretations through surveying both old and recent writings on the Labour Party of the 1950s and 1960s. In particular, we will look closely at the much questioned attempts by Gaitskell and Wilson to modernise the Party : the removal of Clause IV, the widening of the Party's electoral appeal, and the modernising of Britain through a 'scientific revolution'. Overall, faced by the increased affluence of the 1950s and 1960s, it became more and more difficult for the Labour Party to continue an interventionist stance. On balance, we accept the view that modernising projects were inevitable and necessary. However, Labour revisionists failed to show their own coherent version of a socialist Britain. We also find some difficulty in rehabilitating Wilson and his governments. Although he successfully united the Party traditionalists and modernisers with a new vision of a socialist society, once elected his priority was to remain in office rather than to make and implement policy.
著者
岩松 準 遠藤 和義
出版者
一般社団法人日本建築学会
雑誌
日本建築学会計画系論文集 (ISSN:13404210)
巻号頁・発行日
vol.73, no.630, pp.1767-1773, 2008-08-30

Various numbers of bidders exists in public building and/or construction works. Practically in Japan, exceedingly 10 bidders are participating in one bid. It is conceivable that number of bidders in one bid affects certain amount of influence on the competition. With using Friedman's model or Gates' model, which are known as maximum expected value models, the more the numbers of bidders increase, the more it becomes competitive, and the bidders have motive to present lower prices. Authors have tried to confirm the fact statistically with using recently released bidding results data of MLIT (the Ministry of Land, Infrastructure and Transport). In many cases, the ratios of bid price against ceiling price which are estimated by owner side engineers are confirmed decreasing as the number of bidders increases.
著者
Guan Huaping Liu Guiping
出版者
独立行政法人防災科学技術研究所
雑誌
防災科学技術研究所研究資料 (ISSN:0917057X)
巻号頁・発行日
vol.166, pp.303-314, 1995-03-31

Electromagnetic radiation observation have been conducted in China since the Tangshan earthquake in July 28, 1976. Up to now, 130 observatories have been established. The present observing frequency ranges are ultra-low frequency 0.01-20 Hz and point frequency from 10^3 to 10^4 Hz. In the past 20 years, more than 40 earthquakes with magnitude larger than 5.0 occurred in and around the observation network. By analyzing the electromagneticanomalies, it was demonstrated that the detection distance of the anomaly is related with the magnitude, the lasting time of anomalies are from several seconds to several tens days, and no electromagnetic radiation was observed coseismicaly.
著者
Terai Hidenobu Shimizu Masami Ino Hidekazu Yamaguchi Masato Uchiyama Katsuharu Oe Kotaro Nakajima Kenichi Taki Junichi Kawano Masaya Mabuchi Hiroshi
出版者
THE SOCIETY OF NUCLEAR MEDICINE INC
雑誌
Journal of Nuclear Medicine (ISSN:01)
巻号頁・発行日
vol.44, no.10, pp.1612-1617, 2003-10

Left ventricular (LV) systolic function in hypertrophic cardiomyopathy (HCM) is usually normal. Late in the disease, however, LV systolic dysfunction and dilatation are recognized. Although abnormalities in cardiac sympathetic nerve activity in patients with HCM have been demonstrated using 123I-metaiodobenzylguanidine (MIBG) myocardial scintigraphy, the changes of cardiac sympathetic nerve activity throughout the clinical course from typical to end-stage HCM are unclear. The objective of this study was to evaluate the relationship between abnormalities on 123I-MIBG myocardial scintigraphy and pathophysiologic changes in patients with HCM. Methods: We performed 123I-MIBG scintigraphy on 46 patients with HCM and 18 age-matched control subjects. The patients were categorized into 3 groups: 28 patients with normal LV systolic function (group A), 9 patients with LV systolic dysfunction (group B), and 9 patients with LV systolic dysfunction and dilatation (group C). With planar 123I-MIBG imaging, the heart-to-mediastinum ratio for early and delayed acquisitions and the washout rate were calculated. With SPECT, polar maps of the LV myocardium were divided into 20 segments. The regional uptake and washout rate were calculated from semiquantitative 20-segment bull's-eye analysis. Results: The early uptake was significantly lower in group C than in the control group (P < 0.01). The washout rate was progressively higher in group A, group B, and group C (P < 0.01). Reduced regional early uptake was found in 2.9 ± 3.4 (group A), 4.1 ± 4.7 (group B), and 7.4 ± 4.3 (group C) segments, respectively. In group C, regional early uptake was significantly reduced, predominantly in the interventricular septal wall, and regional washout rate was increased in the apex and lateral wall. Conclusion: These results suggest that cardiac sympathetic nerve abnormalities in patients with HCM may advance with development of LV systolic dysfunction and dilatation and that 123I-MIBG myocardial scintigraphy may be a useful tool for the evaluation of pathophysiologic changes in HCM.
著者
清木 徹 伊達 悦二 岡田 光正
出版者
公益社団法人日本水産学会
雑誌
日本水産学会誌 (ISSN:00215392)
巻号頁・発行日
vol.74, no.4, pp.678-687, 2008-07-15
被引用文献数
1 5

干潟及び沿岸海底の脱窒と窒素固定が環境水中でのN収支に果たす役割を調べる目的で,それらの現場速度や環境因子との関係を検討した。定期的に調査した島しょ部の干潟では両プロセスの物質収支がNソースとなっていたが,不定期測定を行った他の干潟ではNシンクのものの方が多く,干潟により両速度の相対的関係は異なっていた。一方,湾海底は全地点シンク作用を示した。また,両速度とも水温と有意な相関が認められ,脱窒速度は水温以外に水中の硝酸濃度及び底泥中のベントス現存量とも有意な相関を示した。脱窒速度とベントスとの関係は,底泥に棲息しているベントスが脱窒菌に何らかの影響を及ぼし脱窒活性を高めている事を示唆していた。
著者
中井 義勝
出版者
一般社団法人日本心身医学会
雑誌
心身医学 (ISSN:03850307)
巻号頁・発行日
vol.38, no.5, pp.325-330, 1998-06-01
被引用文献数
7

Image Marking ProcedureとVideo Distorted Techniqueを用いて摂食障害患者(115例)の身体イメージを評価し, 健常女性(66例)と比較した.Image Marking Procedureによると, 摂食障害患者はヒップと大腿部の自己像を過大評価したが, 健常女性と有意差がなかった.Video Distorted Techniqueによる体重率補正理想像認知指数が, 摂食障害患者は健常女性に比し小さかった.以上の成績から, 以下の点が示唆された.(1)身体イメージの認知は現在の体型の影響を受ける.(2)Image Marking Procedureは身体イメージの感情成分を身体の部位別に評価できる.(3)Video Distorted Techniqueは, 摂食障害患者の潜在意識にあるやせ願望の評価に有用である.