Search Results:　 1-19 of 19

1

Research Activities of Active Tab for Helicopter Noise Reduction [in Japanese]

KOBIKI Noboru , SAITO Shigeru , AOYAMA Takashi , YANG Choongmo , AKASAKA Takeshi , TANABE Yasutada

JAXA と川田工業株式会社が、独自のヘリコプタ騒音低減技術開発のため2002 年より実験・解析の両面から共同研究で実施しているアクティブ・タブについての研究結果について報告する。実験結果より、アクティブ・タブが約3dBの騒音制御能力を有しており、ヘリコプタ騒音低減技術として有望であることを実証した。同時に、ホバ及び前進飛行条件におけるアクティブ・タブのブレード揚力、翼端渦、騒音に対する効果を数値 …

JAXA research and development report JAXA-RR-07-038, 1-23, 2008-02

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2

AM05-01-010 Experimental study on the control of axisymmetric jet by operating tab [in Japanese]

Sakai Yasuhiko , Shirosawa Michimasa , Kubo Takashi , Nagata Koji , Kushida Takehiro

… The aim of this study is to make an active control of an axisymmetric jet by the five "operating tabs" which are arranged radiately in the just outside of the skimmer exit. … This suggests the possibility of the active control of the jet structure. …

Proceedings, ... meeting of Japan Society of Fluid Mechanics 2005, 50, 2005-09-05

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3

129 Newly-developed Compound Active Jet Noise Control Technology for Rectangular Jet Flow Noise Reduction(O.S.5 Advanced Technology for Usage of Sound and Vibration II)

KOBAYASHI Hiroshi , TANAKA Koichi , YOKOCHI Makoto , OZAKI Shunichi , SATO Takuo

… The paper describes about a compound active jet noise control (AJC) technology newly-developed for high speed jet noise reduction and about proof test results of the AJC technology performance. … The AJC technology was contrived and developed as a jet noise reduction part of the active engine noise control technology. …

VS tech : the ... International Symposium on Advanced Technology of Vibration and Sound 2005, 268-276, 2005-05-31

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4

Numerical Study on the Lateral Jet Flow of Helicopter Rotor: Part 2. Blade Vortex Interaction Noise of Rotary Wing

YANG Choongmo , AOYAMA Takashi , SAITO Shigeru , BAEK Jehyun

ブレード/渦干渉(Blade-Vortex Interaction: BVI)騒音は、先行するメイン・ロータのブレードが吐き出した翼端渦が後続ブレードの翼端付近を通過する時に起こる弱い干渉、あるいは先行ブレードの翼端渦を後続ブレードが切る時に起こる強い干渉によって、ブレードの空力荷重が急激に変動することから発生する。この騒音は、特に前進方向の下方に指向性を持ち、主にヘリコプタが着陸する際に発生する …

JAXA research and development report JAXA-RR-04-014E, 1-37, 2005-01

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5

航空機のジェット騒音低減研究の現状 [in Japanese]

KOBAYASHI Hiroshi

Aeronautical and space sciences Japan 49(571), 183-191, 2001-08-05

References (28)
6

Effect of Tabs On Impinging Heat Transfer [in Japanese]

HIWADA Munehiko , TANAKA Shintarou , TANAKA Kouzou , OYAKAWA Kenyu

… The present work experimentally investigates the effect of vortex generators, in the form of small tabs projecting normally into the flow at the nozzle exit, on the flow and heat transfer characteristics of an axisymmetric impinging air jet at the subcritical Reynolds number range, with this comes the expectation of the large eddy structure variation and the possibility of the active control. … and Nu profiles flatten in the direction of the tab setting. …

Transactions of the Japan Society of Mechanical Engineers. B 66(647), 1812-1817, 2000-07-25

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7

Heterotic Viability under the Treatment of Cycloheximide and 6-Methylpurine in Germinating Maize Kernels

MINO Masanobu , INOUE Masayoshi

… さく,実質取り込み量では無処理区と同様,hF_1が両親を凌駕した(Table4).CHXは処理濃度(0.4,1.0,2.0×10-5M)の高まりにつれ,両F_1雑種およびそれらの両親系統のいずれについても,3H-ロイシンの取り込みを順次より強く阻害した.また,その阻害率は系統間でほぼ大差なかった.しかし,CHXに対し最も感受性の高いnhF_1の実質取り込み量はOh545,W22のそれと大差なかったが,hF_1の取り込み量はいずれの濃度区においても他より多かった(Tab1e4). …

Japanese Journal of Breeding 36(3), 240-247, 1986-09-01

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8

The Formation of Distribution Pattern of Chinese Dialect Groups in Sarawak, East Malaysia

YAMASHITA Kiyomi

… In addition to the census data, materials gathered by the author through interviewing Chinese dialect groups during his field survey done in April, 1979 were used in this study, as well as literatures published by Chinese associations from each dialect groups.<BR>There are seven major dialect groups in Sarawak : Hakkas, Foochows, Hokkiens, Cantonese, Teochews, Henghuas, and Hainanese (Tab. …

Journal of Geography(Chigaku Zasshi) 91(5), 332-353, 1982

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9

Translocation and Distribution of ^<14>C-Assimilates Related to Stem Termination Habits in Soybeans [in Japanese]

YOSHIDA Koichi , GOTOH Kanji

… Further, at the stage of pod filling the translocation rate from L-12 showed about 80% in each variety, and Harosoy showed higher value than those of other varieties (Tab. … The pattern of activity was simillar between varieties, and the strongest sink was the metabolically active organs, closely located fed leaf. …

Japanese Journal of Crop Science 44(2), 185-193, 1975-06-30

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10

Recent Crustal Movement Along the Shiwa Tectonic Line of the Northern Kitakami Valley

MIYAGI Toyohiko

… These diluvial fans and alluvial fans are well developed in the west fringe of the Kitakami Valley, which suggests the intensive upheaval of the ridge side.2) Active faults and flexures are seen in the diluvial fans all along the Shiwa Tectonic Line (Fig. 2). … In Nansyo-zan area (A area), several break faults run intermittently in the N-S direction (Fig. 3a, b, 4 and 5).3) Vertical displacement of a fault is a 20m on terrace surface I, and 4-9m on terrace surface II (Tab. …

Annals of The Tohoku Geographycal Asocciation 27(4), 176-186, 1975

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11

Some Regional Aspects of Roofing Tile Manufacture and the Market Areas in Japan

KIMURA Tatsuo

… The distribution of the production, however, is uneven: Aichi, Hyôgo and Saitama prefectures account for more than 60% of the total production of the country (Tab. … The Aichi center has grown in response to the active demand in Edo (Tokyo) since the end of the eighteenth century, similarly the Awaji agglomeration based on the heavy demands from Osaka since the end of the nineteenth century. …

Japanese Journal of Human Geography 25(4), 381-411, 1973

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12

Formation and Result of Co-Operative Self-Operation of Pelagic Skipjack Pole and Tuna Long Line Fishery in Southern Kyushu

DOI Senkichi

… We can say, this is the same tendency about the associations all over Japan (Tab. … The fatal factor among them is the dullness of the self-operating deep-sea fishing brought by the irrational management of above mentioned precapitalistic loose one because of the lack of the experience.All of the five active associations of self-operating deep-sea fishing (Kushikino, Hashima, Bôdomari, Makurazaki-shi, Yamakawa-cho) is located at the areas developed by the fishing of bonito and tuna as their chief industry for a long time. …

Japanese Journal of Human Geography 17(1), 1-20, 1965

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13

Studies on the Nervous Control of the Coronary Circulation (III) : THE EFFECT OF THE STIMULATION OF THE PERIPHERAL END OF THE VAGAL NERVE UPON THE CORONARY BLOOD FLOW [in Japanese]

HASHIBA KUNITAKE

… Experimental results of all cases in the initial increase and maximal decrease in coronary blood flow, were shown in Tab. … It suggests the vagal active vasodilatation.5) From results reported in this paper, it may be concluded that ; …

The Nippon journal of angio-cardiology 21(12), 662-668, 1958-03-20

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14

Pectic Glycosidases of Aspergillus niger : Part 1. On the Formation of Depolymeric Polygalacturonase

SAITO Hiûga , MINODA Yasuji , MARUMO Hirofuto

Pectic acidのglycoside結合を加水分解する2種の酵素の生成について検討した. Galacturonogenic polygalacturonaseはC源として添加したpectinの量に対応して適応酵素的に生成されるが, depolymeric polygalacturonaseはこれと全く無関係で構成酵素的に生成される.後者が培養末期にのみ生成される現象に関しては,培養初期生成を …

Journal of the agricultural chemical society of Japan 28(10), 810-814, 1954

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15

Animal Protein Factor (APF) and vitamin B12 in Marine Products : II. Seaweeds

HASHIMOTO Yoshiro , MAEDA Yasuhiko

… Some of seaweeds were proved to be considerably rich in vitamin B12, as shown in Tab. … Especially, the Japanese common food, “Asakusanori”, contains much vitamin B12 and shows APF activity (Tab. … Table 1 may suggest the presence of another active substance (s) other than vitamin B12. …

NIPPON SUISAN GAKKAISHI 19(3), 141-144, 1953

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16

STUDIES ON THE SEROLOGICAL DIAGNOSIS OF EQUINE PARATYPHOID : ESPECIALLY ON THE PRECIPITIN REACTION WITH THE BACTERIAL POLYSACCHARIDE ANTIGEN OF SALMONELLA ABORTUS-EQUI [in Japanese]

HIRATO KATSUSHICHI , SHIMIZU KIHEIJI , SATO GIHEI , ITOH TOKIYA

… At an initail stage of infection precipitin appears a little later or simultaneously with agglutinin and complement-fixing antibody rises later than the former (Tab. … Usually the titre is low when the symptoms are slight (Tab. … The agglutinin falls gradually but does not return to the titre of pre-infection (Tab. …

Veterinary research 1(1/4), 49-59, 1953

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17

Preservative Experiment of Smoked Shark-Fillet : Part III Production of ammonia

YAMAMURA Yarokuro

… Ammonia was determined by Nesslers colorimetric method after being extracted the sample with acetic acid and the filtrate discolourized with active-carbon. … The analytical data were shown in Tab. …

NIPPON SUISAN GAKKAISHI 16(11), 513-516, 1951

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18

On the Digestion of Higher Carbohydrates by Zsuau-hi (Ctenopharyngodon idellus Cuvier & Valencienns.)

MIGITA M. , HASHIMOTO Y.

… Among the digestive enzymes in question, amylase was active, xylanase was detectable, but not alginase and cellulase. … (Tab. … I) Compared with carp, in the enzymes, length of intestine (Tab. …

NIPPON SUISAN GAKKAISHI 15(6), 259-261, 1949

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19

On the Digestion of Higher Carbohydrates by Mollusca. (Dolabella scapula and Teredo sp.)

HASHIMOTO Y. , ONOMA K.

… In the digestive system of Dolabella scapula, cellulase was detected in gastric teeth and digestive juice both in stomach and intestine, but not in salivary gland, oesophagus, mastricatory stomach, liver and intestine (Tab. … Gastric teeth in mastricatory stomach possesses also alginase, xylanase and amylase (Tab. … The liver of ship-worm (Teredo sp.) was active in cellulase, alginase and xylanase. …

NIPPON SUISAN GAKKAISHI 15(6), 253-258, 1949

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