著者
岡崎 紀俊 田中 和夫 三品 正明
出版者
特定非営利活動法人日本火山学会
雑誌
火山. 第2集 (ISSN:04534360)
巻号頁・発行日
vol.35, no.4, pp.375-388, 1990-12-28
被引用文献数
1

Surveys of magnetic total intensity and gravity were conducted to reveal the underground structure of Medake, one of the central cones in the cadera of Akita-Komaga-take Volcano, from which about 1.42 million m^3 of lavas flowed in the period of 1970-1971 eruption. Magnetic and gravity anomalies obtained show some characteristic features suggesting the subsurface structure. Long wave length magnetic anomalies show that Me-dake is composed of uniformly magnetized volcanic rocks, lavas and scoriae, On the other hand, short ones found at the summit of Me-dake indicate there is a body with reversal or weaker magnetization than the surroundings. The distribution of the Bouguer anomalies is characterized by a narrow area of higher values of anomalies at the summit and a trend of higher values in northwest of Me-dake and lower ones in southeast. The latter suggests the basement structure of the caldera. The former implies an exislence of more dense intrusive rocks under the ground surface. Both centers of short wave length magnetic anomaly and of the narrow area of higher value of gravity locate at the same place about 100 m northeast of the 1970 crater on the summit. Judging from the topographic features, this place is one of the old craters. To interpret magnetic and gravity anomalies, numerical analyses for demagnetization model and for more dense intrusion model with various shapes were carried out independently. Finally, magnetic anomalies can be expained by a demagnetized vertical pentagonal prism, of which size is 80 m in N-S, 150 m in E-W and 300 m in thickness and of which top is at the depth of 5-10 m. Gravity anomalies can be interpreted by a more dense vertical rectanglar prism, of which size is 30 m×110 m×300 m and the top is at 15 m deep. The zones of high ground temperature and fumaroles are found at the surroundings of the 1970 crater and the area of the higher gravity anomalies. The fumarolic area preceding the 1970 eruption was found at north of the crater. We can infer the processes of the 1970 eruption by using the interpreting subsurface model of Me-dake and the distribution of fumaroles. At the first stage of eruptive activity in 1970, magma intruded into northeast of the 1970 crater. At the second, most of magma passed through the vent conncted with the crater and flowed out. Small quantity of magma remained in the narrow part at northeast of the crater make the present magnetic and gravity anomalies and fumaroles.
著者
和知 剛 土井 宣夫 越谷 信
出版者
特定非営利活動法人日本火山学会
雑誌
火山 (ISSN:04534360)
巻号頁・発行日
vol.42, no.1, pp.17-34, 1997-03-07
被引用文献数
5

The Akita-Komagatake, located in the central part of the Ou Back-Bone Range, northeast Japan, is a Quaternary volcano with two calderas. The tephra, younger than 13,500 y.B.P., erupted from this volcano, are stratigraphically divided into thirteen formations, namely AK-13 to AK-1 in ascending order, on the basis of buried soil and loess intercalated. The tephra consists of three types of lithologies: such coarse-grained essential materials as pumice and scoria (type 1), well-sorted black to brown sandy ash (type 2), and fine-grained ash frequently including accretionary lapilli (type 3). These lithologic types are resulted from different styles of volcanic eruption: Plinian to subplinian style eruption (type 1), vulcanian to phreatoplinian style eruption (type 2) and phreatoplinian style eruption (type 3). ^<14>C measurements on humic soil or woods just below or above the tephra reveal the tendency that the explosive eruptions at the Akita-Komagatake volcano occured during three stages; 13,500 to 11,600 y.B,P., 10,000 to 7,100 y.B.P. and 4,000 to 1,000 y.B.P. In the first stage, AK-13, main part of which is called the Koiwai Pumice, and AK-12, the Yanagisawa Pumice, were erupted. During the eruption of the Koiwai Pumice, the Obonai Pyroclasitic Flow Deposits was produced. The volumes of erupted materials for the tephra including the pyroclastic flow deposit are more than 0-6 km^3, and two calderas are thought to have been formed in this stage. In the second stage, AK-11 to AK-6 were erupted. AK-9, the Arasawa Pumice (newly named in this paper), and AK-8, the Horikiri Pumice, are dominated by pumice and scoria (lithologic type 1), and their volumes of erupted materials are more than 0.1 km^3. The volumes for other tephra in this stage is more than 0.046km^3. Through the second stage to the last stage, the volumes of erupted materials tend to become smaller than 0.046km^3.
著者
諏訪 彰
出版者
特定非営利活動法人日本火山学会
雑誌
火山. 第2集 (ISSN:04534360)
巻号頁・発行日
vol.16, no.2, pp.103-106, 1971-12-01

A mixed eruption took place at Medake, biggest central cone of the composite volcano Akita-Komagatake, in 1970-71. This is the first magmatic eruption of the volcano in the historical age. All the former eruptions on record were phreatic explosions. The new lava is andesite, though older lavas of the central cones are basalts.
著者
関 稔
出版者
駒澤大学
雑誌
北海道駒澤大學研究紀要 (ISSN:02866978)
巻号頁・発行日
vol.20, pp.A1-A22, 1985-03

先回の「現在世物語」に引き続き,パンタカの「過去世物語」を紹介する。Divyavadanaにおけるかれの過去世物語としては四つ知られるが,今回はその前半の三種である。左側がDiv.からの和訳,右側が対応する『根本説一切有部毘奈耶』の叙述である。梵語からの和訳にあたっては,底本の読み,難解語・表現の解釈,訳語の選択などについての註記が欠かせないが,都合で次回にゆだねる。〔〕で若干の補足をした以外は単純な逐語訳である。また,漢訳については,新字体のある漢字はそれを使用し,訓点は補わずに引用した。これも正確な現代語訳がなされるべきであろう。ただ,適切な方法ではないかもしれないが,句点・コンマ・かぎなどを使用して,幾分文意はとりやすいようにした。
著者
Nguyen T.B. Ho T.B. Pham C. Kawasaki S.
出版者
JAIST Press
巻号頁・発行日
2007-11

Matching documents is to find similar ones of a given document from an existing document database. It is an important problem in practice as well as in research. This paper presents a method for matching document applying to identify duplicate errors in network systems. The database we used is CISCO network errors database (CNED), a collection of documents that describe error cases occurred in network systems. Each document is a complex document composed of several parts in different types: plain text, source code, dump code, debug, etc. Our experiments are carried out for CNED but the method can be extended to many other kinds of complex documents.The original publication is available at JAIST Press http://www.jaist.ac.jp/library/jaist-press/index.htmlProceedings of KSS'2007 : The Eighth International Symposium on Knowledge and Systems Sciences : November 5-7, 2007, [Ishikawa High-Tech Conference Center, Nomi, Ishikawa, JAPAN]Organized by: Japan Advanced Institute of Science and Technology
著者
大木 清香
出版者
国際基督教大学
雑誌
ジェンダー&セクシュアリティ (ISSN:18804764)
巻号頁・発行日
no.6, pp.5-23, 2011

This paper aims to discuss the works of Josef Breuer and Sigmund Freud dealing withhysteria in which the predominant analytical methods of psychoanalysis of the twentiethcentury are established. It is important to focus on the fact that this therapeutic relationship isbetween a male analyst and a female patient in discussing hysteria because the gender aspectwill be investigated here from a feminist perspective. A joint work of Breuer and Freud, Studies on Hysteria (1895), and Freud's Fragment of anAnalysis of a Case of Hysteria (1905) which is also known as Dora will be examined in thiscontext. Gender studies regard hysteria, specifically in Freud'ian psychoanalysis, as beingtypically a female condition. There was a 21 year old woman named Anna O. who underwent psychological treatment with Breuer. From this "talking cure", language became an importantmedium for analyzing the unconscious. As another example, Dora was 18 years old when shewent to Freud's clinic. A psychological model of hysteria is developed by Freud primarily fromhis masculine perspective, though many patients are female. Thus Freud interprets Dora's symptoms mainly from a male point of view and wrote about it in his Fragment of an Analysisof a Case of Hysteria. The development of an identity for the patient Dora becomes problematicin the end. It ought to be asked why the sexual distinction drives the analyst's power over thefemale patient. This paper investigates a possible reason for such differentiation in the function of "libido" and the difference forms of "expression" in language between man and woman; analyst andpatient. As a theoretical basis, Luce Irigaray's This Sex Which Is Not One (1977) will be used. Lastly, the problem of gender and hysteria discourse is discussed using the case of an Austrianauthor, Ingeborg Bachmann, who wrote a fragmented novel called The Book of Franza (1965/66). The novel shows an example of how the relationship between man and woman,analyst and patient, can be tied to power.
著者
『科学朝日』編
出版者
朝日新聞社
巻号頁・発行日
1989
著者
科学朝日編
出版者
朝日新聞社
巻号頁・発行日
1995