著者

岸本 尚子 齋藤 宏昭 野中 俊宏 齊藤 孝一郎

出版者

一般社団法人 日本建築学会

雑誌

日本建築学会技術報告集 (ISSN:13419463)

巻号頁・発行日

vol.26, no.64, pp.995-1000, 2020-10-20 (Released:2020-10-20)

参考文献数

8

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Thermal bridges at the connections between window and wall are generally not added to evaluation of heat loss from building envelopes. This report presents evaluation method for the thermal bridge around the window. Linear thermal transmittance between window and wall in typical configurations was calculated as an evaluation index. In addition, quantities of the heat loss from the thermal bridge were compared with the total heat loss amount of a house.

著者

齋藤 宏文

出版者

東京工業大学

雑誌

基盤研究(C)

巻号頁・発行日

2021-04-01

著者

齋藤宏文

雑誌

平成21年度情報処理学会関西支部支部大会講演論文集

巻号頁・発行日

vol.2009, 2009-09-29

著者

石井 英一 中川 光弘 齋藤 宏 山本 明彦

出版者

一般社団法人 日本地質学会

雑誌

地質学雑誌 (ISSN:00167630)

巻号頁・発行日

vol.114, no.7, pp.348-365, 2008-07-15 (Released:2009-03-25)

参考文献数

48

被引用文献数

9 6

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北海道中央部の十勝三股盆地周辺に分布する火砕流および火山体を対象に露頭調査,記載岩石学的分析およびK-Ar年代測定を行った結果,降下火砕堆積物の層厚変化,火砕流の層厚・溶結度・上面高度の変化,噴出年代,本質岩片の斑晶鉱物組み合わせ・ガラス組成・鉱物化学組成から,従来それぞれの地域で異なる名称で呼ばれていた4つの火砕流(無加・芽登凝灰岩,屈足火砕流,黒雲母石英安山岩質軽石流)がすべて十勝三股盆地から噴出した同一の火砕流であることが分かった.我々は十勝三股盆地を十勝三股カルデラと呼び,上記4つの火砕流を十勝三股火砕流,先行した降下火砕堆積物を十勝三股降下火砕堆積物と呼ぶことを提唱する.十勝三股カルデラは約1 Maに総噴出量130 km3以上の大規模珪長質噴火によって形成された.その噴火は大規模なプリニー式噴火で始まり,その後に火砕流が発生し,当時の基盤地形に支配されて流下した.

著者

齋藤 宏文

出版者

ロシア・東欧学会

雑誌

ロシア・東欧研究 (ISSN:13486497)

巻号頁・発行日

vol.2007, no.36, pp.72-83, 2007 (Released:2010-05-31)

参考文献数

53

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This research focuses on the process by which scientific information on Soviet genetics—particularly the Lysenko Doctrine—was accepted by Japanese academic groups in the field of biological science. Nakamura (1967) studied the Lysenko Controversy in Japan and illustrated the process whereby this debate resulted in the inevitable political conflict among Japanese biologists after the conference of the Lenin All-Union Academy of Agricultural Sciences in August 1948. In order to examine the possibility of the purely scientific debate on Soviet genetics, it is necessary to investigate the various types of literatures available in the few years immediately following Japan's defeat in World War II. In addition, there are three approaches that complement Nakamura's research. First, it is necessary to measure the ideological control given to Soviet science by the Soviet Government's scientific policies, because this control directly affected the quality of information on Soviet genetics. In particular, the discussion prepared by the editorial board of the Pod znamenem marksizma in 1939 will be highlighted as the turning point of this control. Second, Western scientific literatures were the most important channel of information transfer for Japanese biologists; in this case, it is necessary to consider the acceptance of this literature and the extent to which it influenced Japanese biologists. Third, Japanese academic groups lagged behind the West in accepting information, at least in the two years after the Japanese defeat in World War II; therefore, it is interesting to compare the acceptance times between the West and Japan. In 1946, the ideological control granted to Soviet science was at its weakest, and it was at this time that western biologists accepted the most detailed literatures and wrote numerous scientific criticisms on the Lysenko Doctrine. On the other hand, at this time, Japanese biologists were still concerned with the lack of availability of scientific literatures.

著者

齋藤 宏一

出版者

日経BP社

雑誌

日経ビジネス (ISSN:00290491)

巻号頁・発行日

no.1284, pp.179-182, 2005-03-21

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2005年2月27日、愛知県美浜町と南知多町の合併は住民投票により白紙撤回となりました。新市名の候補だった「南セントレア市」は全国的に話題となりましたが、結局、実が入ることなく終わりました。美浜町長である私は、両町の合併協議会長も務めていました。その合併協議会も3月3日に解散が決まりました。

著者

齋藤 宏文 水野 貴秀

出版者

一般社団法人 日本航空宇宙学会

雑誌

日本航空宇宙学会誌 (ISSN:00214663)

巻号頁・発行日

vol.56, no.651, pp.88-96, 2008-04-05 (Released:2019-04-22)

参考文献数

9

被引用文献数

3

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This review describes the on-orbit results and the lessons-learned of the small scientific satellite“INDEX”(Reimei) for aurora observations and demonstrations of advanced satellite technologies. INDEX is a small satellite with 72 kgmass, and is provided with three-axis attitude control capabilities for aurora observations. INDEX was launched into a nearlysun synchronous orbit on Aug. 23rd, 2005 (UT) from Baikonur, Kazakhstan by Dnepr rocket. The INDEX satellite has beenworking satisfactorily on orbit for 29 months as of January, 2008. Three axis control is achieved with an accuracy of 0.05 deg(la). INDEX indicates that even a small satellite launched as a piggy-back can successfully perform unique scientific missions.Reimei brings a dawn of advanced small satellites. This review concludes the perspective views for small satellites.

著者

梅野 徹也 鉾井 修一 齋藤 宏昭 本間 義規

出版者

日本建築学会

雑誌

日本建築学会環境系論文集 (ISSN:13480685)

巻号頁・発行日

vol.81, no.729, pp.951-959, 2016 (Released:2016-11-30)

参考文献数

17

被引用文献数

1 2

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Most exterior walls of wooden residential buildings in Japan have a vented air space between the exterior cladding and insulation. This air space is designed to dehumidify exterior walls by discharging humidity to the outside and taking outdoor air into the walls, in order to decrease the risk of condensation on exterior walls in winter. Many studies have been carried out on vented air space, and the most effective thickness for dehumidification has been determined. However, most of these studies have only investigated the performance of vented air spaces under laboratory conditions, and the characteristics of vented air spaces in the field have not been clarified. Our previous study clarified the characteristics of ventilation volume through the vented air space based on field measurements. This study continues that work by reporting on the hygro-thermal characteristics of vented air space. Temperature and humidity were measured in an experimental house built in Iwate prefecture, and the hygro-thermal characteristics of the vented air space were verified. Temperature and humidity in the vented air space were affected by the outdoor temperature and humidity during most periods of time, except when the wall was exposed to solar radiation. Indoor temperature and humidity had less of an effect on the vented air space, because the walls of the experimental house are well insulated and highly moisture proof. The temperature of the vented air space is 20 or 30 degrees higher than the outdoor temperature when exposed to the sun during the day, and the humidity of the vented air space also rises. It is thought that the rise in humidity is due to moisture desorption from the exterior cladding. The vented air space of the east wall that is exposed to the sun in the early morning tends to have high humidity for a short time because moisture desorption from exterior cladding occurs when the temperature of the wall is low. Solar radiation on the wall also produces a temperature difference between the vented air space and the outside that is one of the driving forces of ventilation in the vented air space. So ventilation volume tends to be high when the wall is exposed to the sun, and low at night time. This means that ventilation volume in the vented air space is high during moisture desorption from the exterior wall cladding and low during moisture absorption. As a result, most of the desorbed moisture from the exterior cladding is discharged well by the ventilation, and the absolute humidity in the vented air space is kept lower than that outdoors. Through long-term measurement of the hygro-thermal characteristics of the vented air space, it was shown that absolute humidity of the vented air space is lower on the average than the outdoor air due to daily variation in ventilation volume and moisture absorption by the exterior cladding. A numerical simulation was conducted and the results of the field survey were simulated. The hygro-thermal characteristics of the vented air space, moisture absorption by the exterior cladding and drying of the vented air space over the long term were generally confirmed.

著者

齋藤 宏昭 三浦 尚志 桑沢 保夫

出版者

日本建築学会

雑誌

日本建築学会環境系論文集 (ISSN:13480685)

巻号頁・発行日

vol.78, no.688, pp.461-470, 2013-06-30 (Released:2013-08-30)

参考文献数

13

被引用文献数

2 1

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This study focuses on impact of vapor proofing and airtightness on hygrothermal performance for wooden exterior walls. Partial air and moisture penetration into fibrous insulation layer of the wall were mainly addressed in terms of practical issue for the hygrothermal design. Laboratory experiments using wall assemblies with partial defects for vapor proofing such as outlet were implemented to better understand moisture distribution and air flow within the walls when pressure difference occurs between the indoor and the outdoor rooms. After a developed HAM analysis model was verified by the lab-experiments, long-term simulations were performed to clarify moisture accumulation within the wall under various climate conditions. The simulation results indicated that requirements of both the vapor proofing and the air tightness can be mitigated in mild climate regions. Additionally, the results showed that the partial defect at the top of walls causes the moisture accumulation.

著者

海老沼 拓史 楠 知通 阿部 俊雄 齋藤 宏文

出版者

一般社団法人 日本航空宇宙学会

雑誌

宇宙技術 (ISSN:13473832)

巻号頁・発行日

vol.8, pp.15-21, 2009 (Released:2009-08-05)

参考文献数

8

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This paper describes the design and development of a dedicated GPS receiver for spin stabilized launch vehicles. The receiver is built around a commercially available low cost GPS chip set and operates an enhanced firmware specifically adapted for high dynamics applications. In order to keep tracking a sufficient number of GPS signals even during the spinning motion, we use multiple GPS patch antennas and space them equally apart each other around the cylindrical launcher body. A new signal combining scheme was developed to avoid deep fading in antenna gain pattern. This technique requires phase control to keep signals received on multiple antennas in phase with each other. A dualantenna GPS receiver was developed to evaluate the proposed signal combining algorithm. The result showed that the proposed algorithm was capable of providing stable and continuous signal tracking under a high-rate spinning motion while simple RF combining through a power combiner was failed.

著者

野坂 裕一 鈴木 光次 山下 洋平 齋藤 宏明 高橋 一生

出版者

日本地球化学会

雑誌

日本地球化学会年会要旨集

巻号頁・発行日

vol.58, pp.273-273, 2011

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2010年4月および6月の親潮域において,植物プランクトンの群集組成と光合成特性と共に,透明細胞外重合体粒子(TEP)分布の特徴を調査した.4月は珪藻ブルームが発生し,表層(5m深)における植物プランクトンの光合成活性が相対的に高かったのに対し,6月は珪藻ブルームが終焉し,光合成活性も低かった.4月における表層のTEP濃度は,6月と比較して,2-3倍高かった.観測期間中,表層のTEP濃度とSi(OH)4/NO3比の間に高い相関(r = 0.94, p < 0.01, n = 6)がみられたことから,珪藻類の栄養塩取り込み活性がTEP生産を支配していたことが示唆された.

著者

齋藤 宏 井上 裕

出版者

日経BP社

雑誌

日経ビジネス (ISSN:00290491)

巻号頁・発行日

no.1324, pp.86-88, 2006-01-16

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問 2005年、産業界を席巻したM&A(企業の合併・買収)ブームの中で、楽天とTBSの統合問題がとりわけ注目されました。楽天が統合提案をいったん取り下げ、今年3月末までに改めて業務提携交渉を進めることで合意した舞台裏で、齋藤さんは仲介役を引き受けたわけですが、火中の栗を拾う心境だったのではないですか。

著者

齋藤 宏樹 横田 泰宏 山本 拓治

出版者

総合土木研究所

雑誌

基礎工 = The foundation engineering & equipment, monthly : 土木・建築基礎工事と機材の専門誌 (ISSN:02855356)

巻号頁・発行日

vol.43, no.10, pp.54-58, 2015-10

著者

佐田 登志夫 齋藤 宏暢

出版者

公益社団法人 日本薬理学会

雑誌

日本薬理学雑誌 (ISSN:00155691)

巻号頁・発行日

vol.122, no.6, pp.539-547, 2003 (Released:2003-11-20)

参考文献数

34

被引用文献数

5 12

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アゼルニジピン(カルブロック®)は高血圧治療薬として新規に開発されたジヒドロピリジン系カルシウム拮抗薬である.本剤は,L型カルシウムチャネルを抑制することにより血管を拡張させ降圧効果を示す.自然発症高血圧ラット(SHR)にアゼルニジピンを単回経口投与すると,発現が緩徐で持続性の降圧作用が認められるが,降圧に伴う反射性頻脈の程度は同じクラスの類薬に比べ軽度であった.SHRに長期投与すると,安定した降圧作用が認められ,心拍数は軽度ではあるが低下した.イヌにおける検討から,アゼルニジピンは類薬に比べ,圧受容体反射を生じにくく,陰性変時作用が強いことが示された.SHRにおいて血漿中薬物濃度と降圧作用の関係を検討したところ,降圧作用は血漿中薬物濃度の上昇に遅延して発現し,血漿中薬物濃度が低下した後も持続することが示された.また血管壁のマイクロオートラジオグラフィーから,アゼルニジピン分子は平滑筋層に徐々に移行し,そこに長時間留まることが確認された.摘出血管標本において,アゼルニジピン添加後,カルシウム拮抗作用は緩徐に発現し,栄養液中から薬物を除去した後も長時間持続することが示された.これらのデータは本剤の作用持続性にその高い血管組織親和性が関与することを示唆する.降圧作用以外に,本剤には利尿作用,抗狭心症作用,心保護作用,腎保護作用,抗動脈硬化作用が動物モデルで観察されている.臨床試験においても,高血圧患者においてアゼルニジピンは1日1回の投与により24時間安定した降圧作用示すこと,心拍数には影響を与えないもしくは軽度低下させること,カルシウム拮抗薬に特有の頭痛,顔面紅潮,立ちくらみ,動悸などの有害作用が少ないこと,血中から薬物が消失した後も降圧作用が持続することが確認されている.これらの特徴を有するアゼルニジピンは新世代のカルシウム拮抗薬として高血圧治療のために有用である.

著者

葛野 耕司 齋藤 宏昭 佐伯 智寛 水藤 聡

出版者

一般社団法人日本建築学会

雑誌

学術講演梗概集 (ISSN:18839363)

巻号頁・発行日

vol.2015, pp.217-218, 2015-09-04

著者

梅野 徹也 鉾井 修一 齋藤 宏昭 本間 義規

出版者

日本建築学会

雑誌

日本建築学会環境系論文集 (ISSN:13480685)

巻号頁・発行日

vol.78, no.694, pp.909-916, 2013-12-30 (Released:2014-07-10)

参考文献数

14

被引用文献数

2 2

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Most exterior walls of wooden residential buildings in Japan have vented air space between the exterior cladding and the insulation, which is designed to dehumidify the exterior walls by discharging humidity to the outside and taking outdoor air into the walls, with the purpose of decreasing the risk of condensation in exterior walls in winter. Several studies have been carried out on the vented air space, and the most effective thickness for dehumidification has been determined. However, most of these studies have only investigated the performance of vented air spaces under laboratory conditions, and the characteristics of vented air spaces in a field environment have not been clarified. The driving forces of the airflow in the vented air space are the buoyancy force due to the temperature difference between the outdoor air and the vented air space and the wind pressure. However, few studies have dealt with the influence of wind pressure. Since the velocity and the direction of the wind change irregularly, it is difficult to estimate the ventilation volume due to the wind. The objective of this study is to survey the ventilation volume through the vented air space and to investigate the effect of the driving force of the ventilation, which are buoyancy force and wind. Measurements have been carried out on the vented air space in an experimental wooden house that has several types of vented air spaces. The correlation between the ventilation volume and the driving force was discussed.

著者

福田 盛介 澤井 秀次郎 坂井 真一郎 齋藤 宏文 遠間 孝之 高橋 純子 鳥海 強 北出 賢二

出版者

一般社団法人 日本航空宇宙学会

雑誌

宇宙技術 (ISSN:13473832)

巻号頁・発行日

vol.8, pp.1-7, 2009 (Released:2009-02-11)

参考文献数

15

被引用文献数

1 1

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In this paper, a new standard bus system for a series of small scientific satellites in the Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA) is described. Since each mission proposed for the series has a wide variety of requirements, a lot of efforts are needed to enhance flexibility of the standard bus. Some concepts from different viewpoints are proposed. First, standardization layers concerning satellite configuration, instruments, interfaces, and design methods are defined respectively. Methods of product platform engineering, which classify specifications of the bus system into a core platform, alternative variants, and selectable variants, are also investigated in order to realize a semi-custom-made bus. Furthermore, a tradeoff between integration and modularization architecture is fully considered.

著者

齋藤 宏文 廣瀬 和之

出版者

一般社団法人 日本航空宇宙学会

雑誌

日本航空宇宙学会誌 (ISSN:00214663)

巻号頁・発行日

vol.58, no.683, pp.365-372, 2010-12-05 (Released:2019-04-19)

参考文献数

10

被引用文献数

1

著者

鈴木 徹 伊東 元 江原 皓吉 齋藤 宏

出版者

一般社団法人日本理学療法学会連合

雑誌

理学療法学 (ISSN:02893770)

巻号頁・発行日

vol.13, no.6, pp.409-413, 1986-10-10 (Released:2018-10-25)

被引用文献数

2

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健常成人22名の利き手を対象に手関節測定肢位を掌背屈および橈尺屈の組み合わせで13肢位に定めて握力を測定し,手関節肢位と握力の関係について検討した。最大握力を発揮する手関節肢位は背屈20゜前後で,橈尺屈0゜より軽度尺屈位であった。この肢位を力の頂点とし,手関節をいずれの角度に偏位しても握力は減少し,とくに掌屈位では著明な減少を示した。手関節肢位の違いによって握力差が生じるということは,握力の測定や増強訓練時において,その点に十分留意する必要性を示唆している。

著者

黒田 能克 石井 茂 高橋 大輔 木村 真一 齋藤 宏文 廣瀬 和之

出版者

一般社団法人 日本航空宇宙学会

雑誌

日本航空宇宙学会誌 (ISSN:00214663)

巻号頁・発行日

vol.59, no.688, pp.149-154, 2011

参考文献数

8

被引用文献数

1