著者
宮崎 征行 井町 寛之 大橋 晶良
出版者
独立行政法人海洋研究開発機構
雑誌
基盤研究(C)
巻号頁・発行日
2012-04-01

微生物が作り出すマンガン酸化物はレアメタルを吸着しやすい事が知られている。そこで、本研究ではマンガン酸化物を連続的に作り出すことができる微生物群集をバイオリアクターに集積培養することを目的とした。植種源には海底堆積物サンプルを、バイオリアクターにはdown-flow hanging sponge (DHS) リアクターを採用し、二価のマンガンを含む人工海水を基本とした培地をリアクターに供給した。その結果、DHSバイオリアクター内に独立栄養細菌とマンガン酸化菌が繁茂し、微生物が生成したと思われるマンガン酸化物の生成が確認された。
著者
中島 智章
出版者
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.66, no.543, pp.275-279, 2001
被引用文献数
1 1

At first, the appartement du Roi in the north wing of the chateau-neuf of Versailles consisted of 7 salons on which plafonds the Seven Planets' theme was painted. The virtues and the scenes in Antiquity that were arranged around the plafonds are related to Louis XIV's virtues and the functions of seven salons. The same thing can be said of the appartement de la Reine. However, the first plan is different from the executed plan. Comparing these two plans, it is probable that the Seven Planets' theme influenced the last that had 3 salon each before and after the chamber.
著者
辺見 葉子
出版者
慶應義塾大学日吉紀要刊行委員会
雑誌
慶應義塾大学日吉紀要. 英語英米文学
巻号頁・発行日
no.37, pp.93-116, 2001-03 (Released:2001-00-00)

I . Infant heroes who are exposed at their births II. Heroes and the otherworldly waters III. Heroes and `changelings' (1) The birth of Lugh (2) The birth of Finn mac Cumhaill (3) The birth of Lleu Llaw Gyffes
著者
EricS.Fukuda Hiroaki Inoue Takashi Takenaka Dahoo Kim Tsunaki Sadahisa Tetsuya Asai Masato Motomura
出版者
Information Processing Society of Japan
雑誌
Journal of Information Processing (ISSN:18826652)
巻号頁・発行日
vol.23, no.2, pp.143-152, 2015-03-15

Memcached has been widely accepted as a technology to improve the response speed of web servers by caching data on DRAMs in distributed servers. Because of its importance, the acceleration of memcached has been studied on various platforms. Among them, FPGA looks the most attractive platform to run memcached, and several research groups have tried to obtain a much higher performance than that of CPU out of it. The difficulty encountered there, however, is how to manage large-sized memory (gigabytes of DRAMs) from memcached hardware built in an FPGA. Some groups are trying to solve this problem by using an embedded CPU for memory allocation and another group is employing an SSD. Unlike other approaches that try to replace memcached itself on FPGAs, our approach augments the software memcached running on the host CPU by caching its data and some operations at the FPGA-equipped network interface card (NIC) mounted on the server. The locality of memcached data enables the FPGA NIC to have a fairly high hit rate with a smaller memory. In this paper, we describe the architecture of the proposed NIC cache, and evaluate the effectiveness with a standard key-value store (KVS) benchmarking tool. Our evaluation shows that our system is effective if the workload has temporal locality but does not handle workloads well without such a characteristic. We further propose methods to overcome this problem and evaluate them. As a result, we estimate that the latency improved by up to 3.5 times over software memcached running on a high performance CPU.Memcached has been widely accepted as a technology to improve the response speed of web servers by caching data on DRAMs in distributed servers. Because of its importance, the acceleration of memcached has been studied on various platforms. Among them, FPGA looks the most attractive platform to run memcached, and several research groups have tried to obtain a much higher performance than that of CPU out of it. The difficulty encountered there, however, is how to manage large-sized memory (gigabytes of DRAMs) from memcached hardware built in an FPGA. Some groups are trying to solve this problem by using an embedded CPU for memory allocation and another group is employing an SSD. Unlike other approaches that try to replace memcached itself on FPGAs, our approach augments the software memcached running on the host CPU by caching its data and some operations at the FPGA-equipped network interface card (NIC) mounted on the server. The locality of memcached data enables the FPGA NIC to have a fairly high hit rate with a smaller memory. In this paper, we describe the architecture of the proposed NIC cache, and evaluate the effectiveness with a standard key-value store (KVS) benchmarking tool. Our evaluation shows that our system is effective if the workload has temporal locality but does not handle workloads well without such a characteristic. We further propose methods to overcome this problem and evaluate them. As a result, we estimate that the latency improved by up to 3.5 times over software memcached running on a high performance CPU.
著者
松浦 晋也
出版者
日経BP社
雑誌
D&M日経メカニカル (ISSN:13486314)
巻号頁・発行日
no.592, pp.122-125, 2004-01

2003年11月29日午後1時33分,宇宙航空研究開発機構(JAXA)はH-Aロケット6号機を鹿児島県の種子島宇宙センターから打ち上げた(図1)。ロケット先端に搭載されていたのは情報収集衛星(IGS)の第2弾。IGSは,光を使って地表を監視する光学衛星(IGS-O)とレーダを使って夜間の監視もできるレーダ衛星(IGS-R)が1組となっている。

1 0 0 0 OA 成形図説 30巻

著者
曽槃
出版者
巻号頁・発行日
vol.[23],
著者
小島 大輔 谷口 佳菜子 城前 奈美
出版者
地理空間学会
雑誌
地理空間 = Geographical space (ISSN:18829872)
巻号頁・発行日
vol.8, no.2, pp.289-303, 2015

本稿では,唐津市呼子町における「呼子朝市」について,観光化の変遷と出店者の構成から,その存続基盤を検討することを目的とする。 「呼子朝市」は地域の変化に合わせて移動しており,また法律への対応のために組織化するなど柔軟に対応してきた。さらに,「呼子朝市」では「生活市」としての機能が低下していくなかで,「観光市」としての機能が増した。「呼子朝市」の出店者調査で,①鮮魚にイカが付加された呼子独特の出店品目構成による集客,②加工・乾物水産物販売による保存が可能な土産品の提供,③野菜販売者による賑わいの補強,④その他の販売による土産品目の多様性の創出,が把握され,いずれも「観光市」としての機能であった。ただし,この存続基盤の背景には,「生活市」としての機能が消失されず,賑わいの補強につながっていること,出店者同士の交流が出店者の出店意欲を維持させていることがある。
著者
金子 秀夫
出版者
社団法人日本鉄鋼協会
雑誌
鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)
巻号頁・発行日
vol.56, no.5, pp.622-635, 1970-04-01
被引用文献数
8
著者
畠中 史朗 杜下 淳次 樗木 晶子 野口 ゆかり 外園 栄作 小宮 陽子 東田 善治 島ノ江 信芳 中村 邦夫 田代 洋行
出版者
公益社団法人 日本放射線技術学会
雑誌
日本放射線技術学会雑誌 (ISSN:03694305)
巻号頁・発行日
vol.65, no.11, pp.1512-1518, 2009-11-25 (Released:2009-12-18)
参考文献数
12

Variation in the luminance ratio of a cathode ray tube(CRT)monitor and the ultrasonographic images at different levels of ambient light(0–150 lux)was investigated to obtain optimum ambient light in the ultrasonography suite. The maximum and minimum luminances of test patterns and ultrasonographic images were measured after three technicians independently optimized the brightness and contrast of the CRT monitor and ultrasonographic images at different levels of ambient light. Furthermore, the luminance ratio was calculated from the maximum luminance divided by the minimum luminance. When ambient light increased, it was difficult for the technicians to optimize the brightness and contrast settings of the CRT monitor to maintain a high luminance ratio at 0 lux. The luminance ratio decreased rapidly as ambient light increased up to 20 lux. However, the luminance ratio decreased gradually when ambient light was higher than 20 lux. It is necessary to take into consideration the ambient light to maintain a high luminance ratio of ultrasonographic images.
著者
若代 滋
出版者
THE SOCIETY OF PHOTOGRAPHY AND IMAGING OF JAPAN
雑誌
日本写真学会誌 (ISSN:03695662)
巻号頁・発行日
vol.75, no.3, pp.272-274, 2012

PENTAX Qは,レンズ交換が可能なデジタルカメラとしては驚くほどに小さいながらも,本格的なデジタル一眼カメラの性能に加え,様々な特徴を盛り込んだカメラである.ここでは,如何にして従来の固定概念を払拭して顧客の潜在ニーズを満足するカメラの開発を行ったかを解説する.<br>
著者
平野 元久
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.24, no.6, pp.334-339, 2003-06-10 (Released:2009-02-22)
参考文献数
8
被引用文献数
1

Superlubricity, a phenomena of vanishing friction, has been studied theoretically and experimentally. It is theoretically shown that certain unique cases exist where friction force exactly vanishes when the atomic arrangements on the contacting surfaces satisfies the condition for the appearance of superlubricity. The experiments agree with the theoretical predictions. The measurements on atomically clean surfaces show that friction forces decrease as the contacting conditions approach those for the appearance of superlubricity. Friction is not observed in the superlubricity regime in the measurements capable of resolving a friction force of 3 nN by scanning tunneling microscopy.