著者

広瀬 宗一 山口 晶敬

出版者

Japan Society of Civil Engineers

雑誌

土木学会論文集 (ISSN:02897806)

巻号頁・発行日

vol.1990, no.421, pp.233-242, 1990-09-20 (Released:2010-08-24)

参考文献数

5

被引用文献数

4

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To root out Minamata disease, caused by the sewage accumulated in fish and shell fish, a large-scale sediment disposal work was conducted with a special care to prevent a new pollution. The basic approach to sediment disposal was to construct a highly watertight revetment for reclaiming the inner area of the Bay and then to confine sediment, dredged from the remaining contaminated area. Before sediment disposal, boundary nets were installed to enclose the work area to prevent the mixing of contaminated and non-contaminated fish. Dredging work was successfully done by using four cutterless suction dredgers, newly developed in advance for minimizing muddiness due to dredging work. Sediment, discharged into the reclamation area, keeping it under water, was covered with a sandproof membrane, particular volcanic ash earth with light weight, and mountain soil, successively.

出版者

日経BP社

雑誌

日経コンストラクション (ISSN:09153470)

巻号頁・発行日

no.642, 2016-06-27

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アルプス山脈を南北に貫くスイスの「ゴッタルドベーストンネル」で6月1日、開通式が開催された。全体延長は57.1km。青函トンネルの53.9kmを抜いて、世界最長の鉄道トンネルとなる。今年12月11日に鉄道の定期運行が始まる予定だ。

出版者

日経BP社

雑誌

日経コミュニケーション (ISSN:09107215)

巻号頁・発行日

no.418, pp.83-85, 2004-07-15

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総務省は6月30日,UHF(ultra high frequency)帯を利用する無線IC(RFID:radio frequency identification)タグの技術的条件の審議を開始した。焦点は,隣接する携帯電話サービスへの干渉。当事者のNTTドコモの対応次第では,電波がよく飛ぶUHF帯の良さが生かされない仕様になってしまう恐れがある。

著者

高麗井市二三 作

出版者

蔦屋重三郎

巻号頁・発行日

1810

著者

(清) 錢[キン]和 [撰]

出版者

崇文書局

巻号頁・発行日

1869

著者

半田 芳浩 羽渕 知可子 日比 泰淳 安江 敬 柴田 真一 富田 靖

出版者

Western Division of Japanese Dermatological Association

雑誌

西日本皮膚科 (ISSN:03869784)

巻号頁・発行日

vol.64, no.1, pp.36-40, 2002

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64歳,男性。経過中に両耳·右前腕·両手背に6個の日光角化症,右耳·左手背に2個の有棘細胞癌,右手背·左耳·右前腕に4個のBowen病および右手背に単発の基底細胞癌を認めた症例を経験した。砒素摂取歴や職業上で染料,切削油,コールタール,農薬などの発癌物質への曝露歴はない。UVAの最少反応量,UVBの最少紅斑量の低下はなかったが,皮疹はいずれも露光部に出現しているため,日光の刺激により誘発されたと推測した。右耳の日光角化症には液体窒素療法を施行し,他の腫瘍は全て切除した。局所再発は認めていないが,現在も両手背~前腕にBowen病の初期病変もしくは日光角化症と思われる褐~紅色斑が多発しているため,慎重に経過観察している。多種の皮膚悪性腫瘍が多部位にわたり発症した例は稀と考え報告した。

著者

金井 公美子 Kumiko Kanai 洗足学園音楽大学 Senzoku Gakuen College of Music

雑誌

洗足論叢 = Memoirs by the members of Senzoku Gakuen College of Music, Senzoku Junior College of Childhood Education (ISSN:24339237)

巻号頁・発行日

no.46, pp.177-191, 2018-02-21

出版者

刊

巻号頁・発行日

vol.[33],

著者

日下部鳴鶴 書

出版者

書道研究会

巻号頁・発行日

1935

巻号頁・発行日

vol.第69冊, 1000

著者

Miyata Emi Kouno Hirohiko Kamiyama Daisuke Kamazuka Tomoyuki Mihara Mototsugu Fukuda Mitsunori Matsuta Kensaku Tsunemi Hiroshi Minamisono Tadanori Tomida Hiroshi Miyaguchi Kazuhisa

出版者

Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physics

雑誌

Japanese journal of applied physics. Pt. 1, Regular papers & short notes (ISSN:00214922)

巻号頁・発行日

vol.42, no.7, pp.4564-4570, 2003-07-15

参考文献数

18

被引用文献数

5

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We have investigated the radiation damage effects on a charge-coupled device (CCD) to be used for the Japanese X-ray mission, the monitor of all-sky X-ray image (MAXI), onboard the international space station (ISS). A temperature dependence of the dark current as a function of incremental dose is studied. We found that the protons having energy of ${>}292$ keV seriously increased the dark current of the devices. In order to improve the radiation tolerance of the devices, we have developed various device architectures to minimize the radiation damage in orbit. Among them, nitride oxide enables us to reduce the dark current significantly and therefore we adopted nitride oxide for the flight devices. We also compared the dark current of a device in operation and that out of operation during the proton irradiation. The dark current of the device in operation became twofold that out of operation, and we thus determined that devices would be turned off during the passage of the radiation belt. The temperature dependence of the dark current enables us to determine the electron trap level that generates the dark current. We fitted dark current as a function of temperature by the thoretical models and found that the dark current increase after proton irradiations is caused by, at least, two kinds of electron trap levels. The shallow trap level ($E_{\text{c}}-E_{\text{t}} < 0.2$ eV where $E_{\text{c}}$ and $E_{\text{t}}$ are the energy at the bottom of the conduction band and the energy level of electron trap) might be associated with oxygen which is dominant at the operating temprature of ${>}210$ K. On the other hand, another trap level is located roughly at the center of the silicon bandgap which might be associated with divacancies or P–V traps. We finally investigated the spatial distribution of the low-energy protons in the orbit of the ISS. Their density has a peak around $l \sim 20{{\degree}}$ and $b \sim -55{{\degree}}$ independent of the altitude. The peak value is roughly two orders of magnitude higher than that at the South Atlantic Anomaly.

出版者

文芸春秋

雑誌

週刊文春

巻号頁・発行日

vol.45, no.1, pp.57-58, 2003-01-02

著者

Jeylan W. HUSSEIN A. IKECHUKWU OKPOKO

出版者

京都大学

雑誌

African study monographs (ISSN:02851601)

巻号頁・発行日

vol.26, no.1, pp.15-58, 2005

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Every African society south of the Sahara has a long history of transmitting knowledge and human experience through the medium of oral tradition. This paper is on the function of oral traditions among the Arsi-Oromo of Ethiopia. Before the coming of Islam and Christianity, the Arsi were followers of Waaqeffannaa (belief in Sky God), the Oromo version of the African traditional religion. In the Arsiland, the Oromo traditional religion existed side by side with Islam, as the latter was mostly tolerant in the past. The indigenous Oromo religious traditions offered Islam an African feature. The cult of Sheikh Hussein of Bale is one quasi-Islamic tradition that has survived. The Arsi oral traditions are good sources about the nature of Waaqeffannaa and the cult of Sheikh Hussein. Based on the oral traditions of the Arsi and other African societies, the writer concluded that in Africa the function of oral traditions is in constant flux. In addition to replicating the past experiences of the society, African oral traditions serve also as mediums to provide self-conscious commentary on the patterns of life in their societies. Another conclusion is that the homology or dialectical unity between oral art and its social function is contextually determined.

著者

加藤千浪

出版者

写

巻号頁・発行日

vol.[4],

著者

鮎川 勝 平沢 威男 国分 征 大瀬 正美 Masaru AYUKAWA Takeo HIRASAWA Susumu KOKUBUN Masami OSE

雑誌

南極資料 (ISSN:00857289)

巻号頁・発行日

vol.52, pp.1-42, 1975-03

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The rocket launching facilities were inaugurated in 1969 and completed in 1971 at Syowa Station (60°00'S, 39° 35'E: geomagnetic lat. 69.6°S, long. 77.1°E). In the rocket range, about 500 m south-west of the main base: of Syowa, there are three buildings, namely a propellant magazine (10.4×6.Om), a radar-telemeter hut (14.4×6m) and an assembly shop (12×7.6m) connected with a turntable. A turntable (8 m in diameter) in the center of the launching platform is at the same level as the floor of the assembly shop. A rocket carriage can be moved on rails from the assembly shop onto the launching turntable. Rotation of the turntable and movement of the launcher are remote-controlled. An iron-grating box covered with a vinyl sheet is attached to the launcher for keeping the rocket warm. The box is air-conditioned. The rocket is assembled and tested in the assembly shop and transferred to the turntable. The whole launching system is capable of firing a rocket with a diameter up to 350 mm. A radar-telemeter system and the igniter and timer controlers are installed in the radar-telemeter hut. A radar-tracking system with a power of 10 kW is used to measure the azimuth angle, the elevation angle, and the direct range, as well as to record telemeter signals in two channels transmitted by PPM modulation. The receiving frequency of the telemeter system is 290 MHz and the data in 12 channels is recorded. The control system consists of an ignition controller, a timer controller, and a probe controller. These control systems were designed to be operated by a limited number of technicians. There are two types of single-stage sounding rockets, S-160JA and S-210 JA. Their specifications are as follows: [table] Butadiene solid propellant is used from the viewpoint of low temperaturecharacteristics. There is another type of rocket which will be used in the future; S-310JA type (payload 40kg, peak altitude 220km). These rockets were developed by the Institute of Space and Aeronautical Science, University of Tokyo. In order to fire the rockets at the moment when auroral activities begin to show a drastic increase at the onset of an auroral substorm, some considerations were needed in the procedure of the firings in the Antarctic severe natural environment. As a result of many considerations and trainings, the rocket could be fired within one minute after the receiving of the introduction in the rocket launching. The ground-based observations were consolidated at Syowa Station, assisting the direct measurements of physical quantities in auroras by means of the sounding rockets. The instruments to be used in the auroral observations are: all-sky camera (35mm, every 10s), auroral zenith photometer (4278 A), multicolour geomagnetic meridian scanning photometers (4278, 5577, 6300 A, H_β), high sensitive TV camera and VHP auroral radar. It was 10th February 1970 when the first launching of the sounding rocket was carried out at Syowa. Since then, four S-160JA type and nineteen S-210JA type rockets were flown during the period of the research program in 1970-1973. Objects of measurements were electron and ion densities, electric and magnetic fields, infrared and ultra-violet emissions, energetic paticles, X-rays and radiowave in aurora. Through the successful rocket flights, the significant information to reveal the physical nature of auroras was obtained. The present paper mainly reports on the progress of the research program by means of sounding rockets at Syowa Station in 1970-1973 concerning the transportation, the construction and maintenance of the launching facilities, arrangements of the rocket firing and tracking and the obtained results of the rocket flights. During the period of International Magnetospheric Study (IMS, 1976-1979), the rocket facilities will be reopened and more than twenty sounding rockets (S-310JA and S-210JA) are scheduled to be launched from Syowa Station.

著者

斉藤 雄一 堀内 三郎

出版者

一般社団法人 日本建築学会

雑誌

日本建築学会論文報告集 (ISSN:03871185)

巻号頁・発行日

vol.283, pp.150-159, 1979

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We made a research on the fire spreading speed of wooden houses in the downwind eddy behind a fire-resistant building. This report runs as follows : -(1) Eddy areas were observed carefully, and a reattachment point were obtained in connection with the aspect ratio of the building. The reattachment point is the downwind limit of the eddy. (2) Distributions of the wind velocity in the eddy were searched. Its maximum value appears in the middle point between the building front and the reattachment point. (3) The relations between V_∞ and V_i were investigated in the wind tunnel. V_∞ means the velocity of wind which blows in the sky higher than the building and is free from the influence of it. V_i is that of the inverse flow in the downwind eddy behind the building. A formula combining V_∞ and V_i was obtained. (4) The buring tests were made in following two ways A & B. A : fire spreading speed from the ignited crib to the adjacent downwind crib. B : fire spreading speed from the adjacent crib to the further adjacent crib. Each case of A & B was done with 3 scaled cribs (i.e. 1/200, 1/100, 1/80 of full scale). (5) The relationships of experimental fire spreading speed in regard to above mentioned 3 scales were obtained by the method of least square. (6) The relationships of (5) were extended to scale 1/1 (full size) by exrtrapolation. Comparing the results gotten by extrapolation wite those by an actual fire spreading speed formula (for instance, Hamada's formula) using V_i instead of V_∞, the former proved to be about 50% of the latter. (7) The fire spreading formula obtained from the above results was applied to actual fires, and the obtained values were compared with the actual values of the fire data. They proved to be approximately equal. Conclusion : The fire spreading speed of wooden houses in the downwind eddy behind a fire-resistant building are scarcely about 50% of ones by another fire spreading formula, using inverse wind velocity V_i instead of fair wind V_∞.

著者

佐野 武仁 内田 敦子 Takehito SANO Atsuko UCHIDA 昭和女子大学生活環境学科 昭和女子大学生活環境学科 Department of Human Environmental Science and Design Showa Women's University Department of Human Environmental Science and Design Showa Women's University

出版者

昭和女子大学近代文化研究所

雑誌

學苑 = GAKUEN (ISSN:13480103)

巻号頁・発行日

vol.813, pp.49-57, 2008-07-01

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There are various theories about the origin of glass. One is that glass beads were made during the time of the Old Kingdom in Egypt (27th-22nd century BC). Another suggests that glass was first manufactured around 18th-17th century BC. The truth is uncertain. Without a doubt, however, glass has been a notable feature of a great deal of architecture, most notably the Crystal Palace which was built on the grounds of the first World Exposition, held in Hyde Park, London, in 1851. It was an enormous building made from an iron frame work and glass. The theme of this paper is the continuing evolution of glass architecture. It discusses design, and plans which make full use of state-of-the-art technology to achieve energy conservation. Here, the term "glass architecture" refers to buildings whose outer walls and roofs are mainly or entirely made of glass. The distinguishing features of glass architecture can be described as follows: (1) In glass architecture, the aim is to bring more light into the building, and thereby create building with a healthy environment and outstanding occupant comfort, which prevents people from getting sick. This can be achieved by skillfully using natural conditions such as light and heat. (2) Transparent architecture allows people to see the sunny sky on clear days, and the cloudy sky when it is overcast. Sunshades are indispensable fixtures which enable adjustment of light and heat. (3) Glass architecture is the starting point for greenhouses, and the standard practice is to investigate greenhouses first when looking at design and functions such as ventilation or the heat/light environment. (4) If intelligent design and function are built in, then it is possible to construct glass architecture with outstanding occupant comfort, and low overhead thanks to energy conservation. (5) Since there are too many types of glass, and this makes things difficult to understand, a classification is used which combines the glass manufacturing process and sunshades.

著者

Fukaura Atsuyuki

出版者

九州地区国立大学間の連携に係る企画委員会リポジトリ部会

雑誌

九州地区国立大学教育系・文系研究論文集 (ISSN:18828728)

巻号頁・発行日

vol.1, no.1, 2013-10

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The Japanese minimum wage system adopts the guidelines system. Under this system all prefectures are classified into several groups, with considering the regional social and economic conditions. A standard of the rise of minimum wage width is also shown for each group, and the minimum wage of the prefecture is determined by referring the standard. Therefore, in which group each prefecture is ranked has an important economic and political implication, because it determines the regional minimum wage indirectly. In this paper, by adapting the more analytical and statistical technique than the method the current guideline depends on, we examine the validity of the current ranking system. It was shown that, under the guideline system, some prefectures are ranked more higher or lower than the real economic condition suggests. Furthermore, its influence on regional economy depends strongly on a skewness of the wage-income distribution.

著者

八文字自笑, 八文字其笑 作

出版者

八文字屋八左衛門

巻号頁・発行日

vol.[5], 1743

著者

小林 良太郎 小川 行宏 岩田 充晃 安藤 秀樹 島田 俊夫

出版者

一般社団法人情報処理学会

雑誌

情報処理学会論文誌 (ISSN:18827764)

巻号頁・発行日

vol.42, no.2, pp.349-366, 2001-02-15

参考文献数

25

被引用文献数

7

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近年のマイクロプロセッサは,スーパスカラ・アーキテクチャにより,より多くの命令レベル並列(ILP: Instruction-Level Parallelism)をプログラムより引き出し高性能化を図ってきた.しかし,この方法は,スーパスカラ・プロセッサが引き出すことのできる命令レベル並列の限界や,ハードウェアの複雑さの増加により,限界が見え始めてきた.これを解決する1つの方法は,ILPに加えスレッド・レベル並列(TLP: Thread-Level Parallelism)を利用することである.本論文では,レジスタ値の同期/通信機能を備え,複数のスレッドを並列に実行するSKYと呼ぶマルチプロセッサ・アーキテクチャを提案する.SKYは,非数値計算応用で高い性能を達成することを目的としている.このためには,細粒度のTLPを低オーバヘッドで利用することが要求され,SKYでは,命令ウィンドウ・ベースの同期/通信機構と呼ぶ機構を新たに導入した.この機構は,従来のレジスタ・ベースの同期/通信機構と異なり,受信待ちの命令に後続する命令の実行を可能にするノンブロッキング同期を実現している.これにより,TLPとILPを同時に最大限利用することを可能とする.SPECint95を用いた評価により,8命令発行の2つのスーパスカラ・プロセッサにより構成したSKYは,16命令発行のスーパスカラ・プロセッサに対して,最大46.1%,平均21.8%の高い性能を達成できることを確認した.Current microprocessors have improved performance by exploiting more amount of instruction-level parallelism (ILP) from a program through superscalar architectures.This approach, however,is reaching its limit because of the limited ILP available to superscalar processors and the growth of their hardware complexity.Another approach that solves those problems is to exploit thread-level parallelism (TLP) in addition to ILP.This paper proposes a multiprocessor architecture, called SKY,which executes multiple threads in parallel with a register-value communication and synchronization mechanism.The objective of SKY is to achieve high performance in non-numerical applications.For this purpose, it is required to exploit fine-grain TLP with low overhead.To meet this requirement,SKY introduces an instruction-window-based communication and synchronization mechanism.This mechanism allows subsequent instructions to waiting instructions for receiving registers to be executed unlike previously proposed register-based mechanisms.This capability enables fully exploiting both TLP and ILP.The evaluation results show that SKY with two eight-issue superscalar processors achieves a speedup of up to 46.1% or an average of 21.8% over a 16-issue superscalar processor.