著者
K.M.
出版者
公益社団法人日本船舶海洋工学会
雑誌
造船協会雑纂 (ISSN:03861597)
巻号頁・発行日
no.207, pp.461-465, 1939-06-30
著者
Kanetada NAGAMINE Hiroyuki K. M. TANAKA Satoshi N. NAKAMURA Katsuhiko ISHIDA Misao HASHIMOTO Akihiko SHINOTAKE Masaaki NAITO Asao HATANAKA
出版者
The Japan Academy
雑誌
Proceedings of the Japan Academy, Series B (ISSN:03862208)
巻号頁・発行日
vol.81, no.7, pp.257-260, 2005 (Released:2005-11-07)
参考文献数
4
被引用文献数
15 30

By using the detection system of the near-horizontal cosmic-ray radiography originally developed for probing inner structure of volcanic mountains, a measurement was conducted to probe the inner structure and its time-dependent change of the blast furnace for iron-making. Precise determination (±5 cm) of the thickness of brick used for both base-plate and side-wall was made in 45 days; a crucial information to predict a life-time of the furnace. Also, the local density of iron-rich part was determined in ±0.2 g/cm2 in 45 days; static structure as well as time-dependent behavior can be monitored for the iron-rich part of the furnace during operation. (Communicated by Kazuhiko NISHIJIMA, M.J.A.)
著者
László Oláh Gergő Hamar Shinichi Miyamoto Hiroyuki K. M. Tanaka Dezső Varga
出版者
社団法人 物理探査学会
雑誌
物理探査 (ISSN:09127984)
巻号頁・発行日
vol.71, pp.161-168, 2018 (Released:2018-12-28)
参考文献数
42
被引用文献数
3 4

Muography is an emerging visualization technique for inspection of large-sized objects with the measurement of the absorption rate of cosmic-ray muons. Present paper introduces the first prototype of a Multi-Wire-Proportional-Camber (MWPC)-based borehole detector. The designed tracking system is based on the so-called Close Cathode Chamber (CCC) concept, which provides easily handling and robust detectors. The 18-cm-length detector is covering a sensitive area of 20 cm × 32 cm and an angular acceptance up to 60 deg with close to full tracking efficiency (99 %), reasonable position resolution of 1.8 mm and angular resolution of 10 mrad. The detector has been tested inside a shallow shaft and an underground iron pillar with concrete basement has successfully been imaged with the resolution of 15 cm within 15 days, which indicates the future industrial usage of MWPC detectors and encourages the application oriented development of this technology for borehole-based muography.
著者
Taro KUSAGAYA Hiroyuki K. M. TANAKA
出版者
日本学士院
雑誌
Proceedings of the Japan Academy, Series B (ISSN:03862208)
巻号頁・発行日
vol.91, no.9, pp.501-510, 2015-11-11 (Released:2015-11-11)
参考文献数
30
被引用文献数
21

In conventional muography observations using two detectors for muon tracking, the accidental coincidence of vertical electromagnetic showers generates identical trajectories to the muon tracks. Although muography has favorable properties, which allow direct density measurements inside a volcano, the measured density is lower than the actual value due to these fortuitous trajectories. We performed muography of Usu volcano, and confirmed that, in comparison with a use of two detectors, background noise levels were reduced by more than one order of magnitude using seven detectors for selecting linear trajectories. The resultant muographic image showed a high-density region underneath the central region of Usu volcano. This picture is consistent with the magma intrusion model proposed in previous studies. To clarify the three-dimensional location and actual size of the detected high-density body, multidirectional muographic measurements are necessary.
著者
K. M. Khalequzzaman
出版者
Institute of Tropical Agriculture, Kyushu University
雑誌
Bulletin of the Institute of Tropical Agriculture, Kyushu University (ISSN:0915499X)
巻号頁・発行日
vol.45, pp.1-8, 2022 (Released:2023-01-11)
参考文献数
18

The experiment was conducted at the field and store house of Spices Research Centre, BARI, Shibganj, Bogura, Bangladesh during 2018-20 to identify post-harvest onion bulb associated fungi in storage and to find out the effective control measures to overcome the storage loss as well as to increase shelf-life of onion bulb. The field experiment was conducted for producing bulbs of BARI Piaz-1, BARI Piaz-2, BARI Piaz-3, BARI Piaz-4 and BARI Piaz-5 which were used in store house. Six treatments viz. healthy and fresh bulb, bulb treatment with Cabriotop (0.3%), with Provax 200 WP (0.25%), with Amistar Top 325 SC (0.1%) and Autostin DF (0.2%), and control were used in store house. Aspergillus niger was the isolate of storage fungi in onion bulbs. Fungicides showed little bit effect on rotten and sprouted bulbs of all varieties on onion during the whole storage periods of control. But Autostin DF (Carbendazim) at 0.2% showed more effective among the fungicides. Summer onion varieties viz. BARI Piaz-2, BARI Piaz-3 and BARI Piaz-5 showed more than 50% rotten and sprouted bulbs at 32 DAI in storage. But winter onion varieties viz. BARI Piaz-1 and BARI Piaz-4 showed 20 - 30% rotten and sprouted bulbs at 160 DAI in storage. Among the winter varieties, BARI Piaz-4 was more stable and good compared to BARI Piaz-1. Among the summer varieties, sprouted bulbs were more than rotten bulbs, but rotten bulbs were more than sprouted bulbs in winter varieties.
著者
A. K. M. Humayun KOBER 青山 真人 塚原 直樹 杉田 昭栄
出版者
Japanese Soceity for Animal Behaviour and Management
雑誌
日本家畜管理学会誌・応用動物行動学会誌 (ISSN:18802133)
巻号頁・発行日
vol.47, no.3, pp.97-103, 2011-09-25 (Released:2017-02-06)
参考文献数
26

トラック輸送およびその際に使用する運搬用ケージのタイプが、ニワトリ(Gallus domesticus)の副腎に及ぼす生理学的および生化学的影響について検討した。2010年12月から翌年2月の間、12羽の成オスニワトリを、C1、T1およびT2の3つの実験区に分けた。C1区においては、通常飼育に用いていたのと同じ金網ケージ(95×60×70cm)にニワトリを2羽入れ、輸送を施さなかった。T1区においては、前述した通常飼育用の金網ケージをトラックの荷台に積載し、2〜3羽を同時に30分間輸送した。T2区では現場でニワトリの輸送の際に用いている小型のプラスチックケージ(68×48×20cm)に3羽を入れ、30分間輸送した。輸送終了直後の血中コルチコステロン(CORT)濃度をラジオイムノアッセイで、副腎組織中のチロシン水酸化酵素(TH)およびリン酸化THの発現量をウエスタンブロット法で測定した。その結果、ケージのタイプに関わらず、輸送をした区(T1,T2区)はC1区と比較して血中CORT濃度が有意に高く(P<0.05)、輸送がニワトリにとってストレスとなることが示唆された。T2区の血中CORT濃度はT1のそれと比較して若干高かったが、T1とT2区の間に有意差はなかった。THの発現量に対するリン酸化THの発現量の割合は、3つの実験区いずれの間にも有意差はみられなかった。これらの結果より、30分間の輸送はニワトリにとってストレスとなるが、小型ケージに収納されて輸送されることは、少なくとも冷涼な気候下で30分間であればストレスとはならないことが示唆された。
著者
ラハマン G. K. M. M. 本山 直樹
出版者
日本農薬学会
雑誌
日本農薬学会誌 (ISSN:03851559)
巻号頁・発行日
vol.25, no.4, pp.387-391, 2000
参考文献数
21

有機リン殺虫剤クロルピリホスの畑土条件下での残留性を千葉と松戸の黒ボク土を用いて土壌の滅菌処理, 温度(15, 25, 35℃)や水分(20, 30, 40%)を変えて室内実験により研究した.土壌からメタノールで抽出後, 85%リン酸処理によって残留するクロルピリホスを遊離させ, 再びメタノールで抽出した.遊離したクロルピリホスは千葉土壌で最大18%, 松戸土壌で10%検出されたが, 長期間土壌中に残留した.土壌中の半減期は千葉土壌で28日, 松戸土壌で14日であり, 温度の上昇に伴って分解は速くなった.メタノールで抽出されない残留体は千葉>松戸であり, 有機炭素含量と正の相関を示し, 土壌有機物への吸着が示唆された.両土壌とも滅菌処理によって分解速度は遅くなったが, 遊離するクロルピリホスは酸処理によってあまり差がなかった.
著者
ラハマン G. K. M. M. 本山 直樹
出版者
Pesticide Science Society of Japan
雑誌
Journal of Pesticide Science (ISSN:1348589X)
巻号頁・発行日
vol.25, no.4, pp.387-391, 2000
被引用文献数
3

有機リン殺虫剤クロルピリホスの畑土条件下での残留性を千葉と松戸の黒ボク土を用いて土壌の滅菌処理, 温度 (15, 25, 35℃) や水分 (20, 30, 40%) を変えて室内実験により研究した. 土壌からメタノールで抽出後, 85%リン酸処理によって残留するクロルピリホスを遊離させ, 再びメタノールで抽出した. 遊離したクロルピリホスは千葉土壌で最大18%, 松戸土壌で10%検出されたが, 長期間土壌中に残留した. 土壌中の半減期は千葉土壌で28日, 松戸土壌で14日であり, 温度の上昇に伴って分解は速くなった. メタノールで抽出されない残留体は千葉>松戸であり, 有機炭素含量と正の相関を示し, 土壌有機物への吸着が示唆された. 両土壌とも滅菌処理によって分解速度は遅くなったが, 遊離するクロルピリホスは酸処理によってあまり差がなかった.
著者
荒牧 憲隆 A.K.M. Badrul Alam 玉村 修司 上野 晃生 村上 拓馬 金子 勝比古
出版者
一般社団法人 資源・素材学会
雑誌
Journal of MMIJ (ISSN:18816118)
巻号頁・発行日
vol.133, no.7, pp.173-181, 2017-07-01 (Released:2017-07-28)
参考文献数
33

Peat from highly organic soil is abundant in Northern Hokkaido, Japan. In the past, peat was used in various applications in Japan, such as an artificial culture of soil, as a fertilizer for gardening, and as an energy resource. However, peat is not used by the modern energy and manufacturing sectors in Japan because it has a high moisture content and low calorific value, which lowers its value as a resource considering its material characteristics and handling difficulties. Furthermore, large amounts of peat are generated at the construction sites in this area, and they are difficult to be reused at their generation sites because peat is a very soft soil and not suitable for construction work. Recently, many Japanese research institutions have been carrying out research and development on renewable energy resources including biomass energy. In Hokkaido, there are many biogas plants for methanizing biomass derived from livestock excrement or food waste. Thus, peat which is high in organic matter could potentially be used as an energy resource. In this study, we investigated the potential of utilizing peat as an energy resource for biogenic methane production in regional cities of Northern Hokkaido, while considering both its material characteristics and resource circulation. Batch tests using a hydrogen peroxide solution were performed on peat and silty soil to estimate the quantity of low-molecular-weight organic acids and the producing potential for biogenic methane gas. The oxidative decomposition of the peat produced a high yield of low-molecular-weight organic acids that were used as substrates for methanogenic microorganisms. In addition, a novel resource circulation method was proposed for peat in order to use it as an energy resource. Moreover, the energy resources problem in Northern Hokkaido was discussed in association with geographical parameters and the construction recycling system in Japan.
著者
荒牧 憲隆 A.K.M. Badrul Alam 玉村 修司 上野 晃生 村上 拓馬 金子 勝比古
出版者
一般社団法人 資源・素材学会
雑誌
Journal of MMIJ (ISSN:18816118)
巻号頁・発行日
vol.132, no.12, pp.190-198, 2016-12-01 (Released:2016-12-16)
参考文献数
23

Recently, the possibility of realizing a subsurface bio-reactor has been realized since microbial methanogenesis has been confirmed in diverse subsurface environments such as coalbeds or petroleum reservoirs. We propose a new gasification method for use in subsurface environments, known as the Subsurface Cultivation and Gasification (SCG). SCG was devised based on the production of biogenic methane gas in subsurface environments. This approach employed hydrogen peroxide to decompose organic matter rapidly. Conversion of organic matter from source rocks into biomethane with the help of microorganisms is expected to be highly profitable. In this study, a series of batch tests using a hydrogen peroxide (H2O2) solution were performed on lignite to estimate the potential of low-molecular-weight organic acid production. The effects of several factors on the production of low-molecular-weight organic acids have been considered, such as, concentration of H2O2, temperature, liquid-solid ratio, and specific subsurface area of lignite. It was found that the quantity of low-molecular-weight organic acids depended on temperature, liquid-solid ratio, and specific subsurface area of lignite; however, there isn't a unique relationship between them and the H2O2 concentration. Moreover, the mass of lignite reduced remarkably when batch tests were performed with a high concentration of H2O2. If H2O2 is to be injected into a target seam with the SCG method, we should estimate the optimum H2O2 concentration to produce low-molecular-weight organic acids with taking into consideration the mechanical stability of the target seam as well as the subsurface environmental chemical reaction with a geological improvement.
著者
K.M.
出版者
公益社団法人日本船舶海洋工学会
雑誌
造船協会雑纂 (ISSN:03861597)
巻号頁・発行日
no.190, pp.2-3, 1938-01

1 0 0 0 航空母艦

著者
K.M.
出版者
公益社団法人 日本船舶海洋工学会
雑誌
造船協会雑纂
巻号頁・発行日
vol.195, pp.351-361, 1938