著者
松井 剛一
出版者
日本混相流学会
雑誌
混相流 (ISSN:09142843)
巻号頁・発行日
vol.14, no.1, pp.24-38, 2000-03-15 (Released:2011-02-22)
参考文献数
34
被引用文献数
1

Because “flow pattern” relates closely to design parameters of plant such as pressure drop and heat transfer coefficient, better knowledge of the flow pattern leads not only to deep understanding of the flow but also to accurate prediction of the parameters or to safe operation of plant. Therefore, “flow pattern” is an important and fundamental parameter as well as void fraction. Nevertheless the flow pattern has been judged mostly on a basis of visual observation. Therefore, it is desired to identify the flow pattern objectively and quantitatively.Here, identification of flow pattern using differential pressure fluctuations is described. Behaviors of statistical parameters are discussed in the statistical parameter spaces. And also recent flow visualization methods using fast X-ray CT and HPIV are described.
著者
小林 敬一
出版者
一般社団法人 日本教育心理学会
雑誌
教育心理学研究 (ISSN:00215015)
巻号頁・発行日
vol.43, no.3, pp.297-305, 1995-09-30 (Released:2013-02-19)
参考文献数
15

Various resources can be used to prevent from forgetting things: for example, habitual actions to use external memory devices, metamemory knowledge of external memory devices, script knowledge for planning, and others' aids. The availability of the resources is not equal for anyone, however. The purpose of the present study was to examine developmental changes in contents of the available resources and the relationships among the resources for elementary school children in their homes. The questionnaires concerning the resources were administered to seventy second graders, sixty-six fourth graders, seventy-one sixth graders, and their parents. As results, the children's knowledge increased with grades, while parental aids decreased with grades. Significant (marginally significant) correlation between children's knowledge and parental aids were found in fourth graders only. Moreover, there was a significant (marginally significant) correlation between children's habitual actions to put the room in order and children's script knowledge in fourth and sixth graders, although differences in habitual actions among graders were not significant.
著者
遠藤 康裕 坂本 雅昭
出版者
理学療法科学学会
雑誌
理学療法科学 (ISSN:13411667)
巻号頁・発行日
vol.34, no.3, pp.303-308, 2019 (Released:2019-06-25)
参考文献数
22
被引用文献数
1

〔目的〕簡易的なテストを用いて機能評価を行い,投球時痛を有する選手の身体特徴を明らかにすることを目的とした.〔対象と方法〕対象は中学生野球選手27名とし,投球時痛の有無で2群に分けた.テストは,ショルダーモビリティ,Finger Floor Distance,Heel Buttock Distance(HBD),股関節内旋,しゃがみ込み,片脚立位,フォワードベンド,フォワードベンチ,サイドベンチとした.〔結果〕疼痛群では対照群に対して,HBD,股関節内旋,フォワードベンドで有意に陽性者が多かった.〔結語〕投球時痛を有する選手では,大腿四頭筋柔軟性低下,股関節内旋可動域制限,動的立位バランスの低下を有することが示唆された.
著者
原 剛
出版者
社団法人 日本印刷学会
雑誌
日本印刷学会誌 (ISSN:09143319)
巻号頁・発行日
vol.44, no.1, pp.002-007, 2007 (Released:2010-02-15)

Although Japanese environmental regulations, and health and safety laws set tolerance levels for noise and vibration generated by printing presses, maintaining these levels in web offset presses are becoming increasingly difficult. This is particularly true in terms of noise, as today's presses tend to be larger and provide faster running speeds for the purpose of improving productivity. The most effective means for reducing noise levels is to enclose the entire web press or the printing unit and folder sections of the press in soundproofing barriers. Laying the proper foundation to support the press is essential for minimizing vibration of buildings within the printing plant. Mechanically induced problems with the press can lead to excessive noise and vibration, and daily maintenance is also necessary to protect the press equipment and alleviate these problems.
著者
児玉 閲
出版者
情報メディア学会
雑誌
情報メディア研究 (ISSN:13485857)
巻号頁・発行日
vol.17, no.1, pp.1-17, 2018-05-11 (Released:2018-05-11)
参考文献数
10

本研究では,自然科学系分野における分野間引用関係の経年変化を明らかにすることを目的とした.Journal Citation Reports 2001-2009 年 Science Edition で継続収録されている 4,463 誌を 22 分野に分類し,分野間引用数を集計した.分野間引用数は,引用元分野と被引用分野の両方の論文数で規格化した(以下,NC(Normalized Citations)と呼ぶ).NC の変化率に有意な相関があり,且つ,被引用分野へ一定の引用数がある引用元-被引用分野の組を抽出した.NC 変化率が正の値(増加傾向)が 14 組,負の値(減少傾向)が 42 組であった.減少傾向に寄与している分野は,Multidisciplinary,Molecular Biology & Genetics など,生命科学分野が多くみられたが、対象とした 4,463 誌以外への引用が増え,引用する雑誌に広がりがあることが分かった.規格化によって、分野による規模(論文数) の影響が排除されていることを確認した.
著者
才田 いずみ 稲飯 亜有美
出版者
日本語教育方法研究会
雑誌
日本語教育方法研究会誌 (ISSN:18813968)
巻号頁・発行日
vol.25, no.2, pp.76-77, 2019 (Released:2019-07-02)
参考文献数
7

It is essential for Japanese language learners to have sufficient skills to conduct casual conversations with native speakers to develop their language proficiency as well as their personal networks. The analysis of casual conversations in contact situations shows us the reaction to &quotiisashi" ―the suspended sentences or the sentence-ending ellipsis is one of the critical points for the smooth interactions and even a learner in advanced level needs practice to give proper reaction to it.
著者
畠山 理恵
出版者
日本語教育方法研究会
雑誌
日本語教育方法研究会誌 (ISSN:18813968)
巻号頁・発行日
vol.24, no.1, pp.46-47, 2017 (Released:2017-12-28)
参考文献数
2

In this paper, I will examine advanced level learners' thinking process from their talks after completion of the writing task requiring citation along with their works. The purpose is to find clues for effective teaching of citation, one of the necessary skills for academic writing. In a writing class for advanced level learners, I introduced a practice determining whether to use direct citation or indirect citation for several times during the course. The said task was given at the closing hours. First I would examine effectiveness of the practice and then present the clues for further teaching.
著者
柿本 敏克
出版者
日本社会心理学会
雑誌
社会心理学研究 (ISSN:09161503)
巻号頁・発行日
vol.11, no.2, pp.94-104, 1995-12-15 (Released:2016-12-04)

The purpose of the studies was to investigate the effects of group membership on the evaluations of ingroup and outgroup others, and to explore the potentially mediating effect of a personal trait. The "contextualism" was examined as the personal trait since this was hypothesized to concern the degree to which group membership is integrated into one's self concept-the central issue of the idea of social identity. A preliminary study examined validity and reliability of a scale to tap this individual difference with the previous (n = 3883) and new data (n = 99). In the main study, 46 subjects participated in a minimal group experiment after answering the contextualism scale. The primary dependent measures were evaluative ratings of anonymous people and their writings from ingroup and outgroup. On the whole, evaluative ingroup bias was evident. While the degree of ingroup bias was positively related to the contextualism for person evaluation, no such relation was found for writings evaluation. Mechanisms to produce ingroup bias were discussed.
著者
井上 潔 島 好範
出版者
公益社団法人 日本金属学会
雑誌
日本金属学会誌 (ISSN:00214876)
巻号頁・発行日
vol.33, no.7, pp.755-760, 1969 (Released:2008-04-04)
参考文献数
6
被引用文献数
2

The purpose of this paper is to clarify the character of spark carburization for iron, and characteristics of the spark carburized layer which is not found in other carburizing treatments, and also to investigate the effect of superposing magnetic field and high frequency current. Through microscope and by X-ray diffraction, the following conclusions have been drawn:(1) Glycerine-25% Potassium acetate is extremely excellent for the carburizing solution, and the caburized layer of 0.2∼0.5 mm can be obtained by 5∼10 min carburization.(2) As for the structure of the carburized quenching layer, the surface shows structure including carbide, residual austenite and martensite, and moreover the inner part shows a martensite structure like fine needles. This is because the surface layer contains a large amount of carbon, and from this it can be estimated that the mechanical properties, especially wear resistance, is excellent.(3) In the carburization the high frequency current has the effect of unifying diffusion. In this case, the frequency of 350 KHz is effective. The magnetic field has the effect of increasing the carburizing ability by 50∼80% on the surface in parallel with the magnetic flux.
著者
金子 秀夫 村上 毅 池内 準
出版者
公益社団法人 日本金属学会
雑誌
日本金属学会誌 (ISSN:00214876)
巻号頁・発行日
vol.32, no.10, pp.982-987, 1968 (Released:2008-04-04)
参考文献数
3
被引用文献数
1 1

The process of carburization is the oldest and has been most extensively employed in industry as a method of case hardening of steels. The progress in the carburization technique, however, has not been extremely rapid. Therefore a new method with higher rate of penetration and better quality of case is extensively craved for. To find a solution of this problem, electrodischarge carburization has been conducted by the present authors to combine electrodischarge heating and the carburizing action in a special electrolyte. This is a method of case hardening of steels in a electrolyte that contains the chemicals required to produce a case comparable with one resulting from liquid carburization. This provides a convenient method of carburization, with low distortion and with considerable high rate of penetration and uniformity of control of the case.The best carburizing conditions obtained in the present study are as follows:electrolyte: ethleneglycol saturated with sodiumchlorideapplied voltage: 150 V DCcarburizing time: 1∼5 mincase depth: 0.2∼0.3 mmhardness of the case: >Hv 850
著者
熊埜御堂 浩 塩谷 彰浩
出版者
耳鼻咽喉科展望会
雑誌
耳鼻咽喉科展望 (ISSN:03869687)
巻号頁・発行日
vol.43, no.1, pp.37-42, 2000-02-15 (Released:2011-03-18)
参考文献数
17

ネクタイによる絞頸での閉鎖性喉頭外傷2例を経験した。絞頸による喉頭外傷は, 交通事故によるハンドルでの頸部損傷や, スポーツ事故などの瞬時の強い圧力を受ける場合と同じ様に, 損傷程度として「内腔粘膜」「周囲組織」「枠組み」の状態により, 挫傷から軟骨骨折, 急性呼吸困難など様々な病態をとり得る。閉鎖性喉頭外傷には, 治療方針として一定されるものがないことから, 初期治療においての確実な病態把握と対処が極めて重要であり, 急激な呼吸障害への対応のみならず, 一見軽症と考えられるような外傷においても, 十分に慎重な経過観察と治療が行われるべきと考えられた。
著者
髙村 (赤司) 祥子
出版者
一般社団法人 日本エンドトキシン・自然免疫研究会
雑誌
エンドトキシン・自然免疫研究 (ISSN:24341177)
巻号頁・発行日
vol.22, pp.79-82, 2019 (Released:2019-11-06)
参考文献数
6

The bee venom (BV) is the secretion which is produced by a needle device for protection the bee from an enemy. However, BV has been applied to the folk medicine for various diseases because it is included many enzymes which are containing anti-inflammatory or anti-cancer action. Above all, Phospholipase A2 (PLA2) is a hydrolytic enzyme which cleaves membrane phospholipids, and in bee venom occupying up to 12%. PLA2 has been analyzed in greatest detail. This mini review sets out the latest scientific evidence concerning the therapeutic effects of PLA2 in the context of diseases and provides a detailed description of the mechanisms.
著者
呉地 正行 横田 義雄 大津 真理子
出版者
The Ornithological Society of Japan
雑誌
(ISSN:00409480)
巻号頁・発行日
vol.32, no.2-3, pp.95-108, 1983-10-25 (Released:2007-09-28)
参考文献数
6
被引用文献数
2 2

(1)日本に渡来するヒシクイ Anser fabalis の各個体群の亜種調査を行うために,ヒシクイ A. f. serrirostris とオオヒシクイ A. f. middendorfi の野外識別の可能性を検討した.(2)この2亜種は形態的相違が顕著で,生態的にも異なる点が多く,野外観察でも識別可能である.至近距離の場合は嘴の形態のみで,遠距離(約1km)の場合でも25倍の望遠鏡を用いれば,嘴峰/頭長比〓1,嘴峰/嘴高(基部)比〓2,頭•嘴部全体の形態の相違,などの形態的比較や,鳴き声の相違などの生態的比較により亜種を識別できる.(3)野外識別法により得られた結果と,同一地域で採取された標本調査の結果は,よく一致した. 例えば,宮城県下の個体群は A. f. serrirostris が,また新潟県下のものは A. f. middendorfi が大多数を占めるという結果が,両方法から得られた.
著者
河野 貴美子 王 鳳桐 段 立葉
出版者
人体科学会
雑誌
人体科学 (ISSN:09182489)
巻号頁・発行日
vol.2, no.1, pp.89-93, 1993-04-30 (Released:2018-03-01)

Electroencephalograms (EEGs) of three Chinese Qi-gong masters and three healthy and sound Japanese men as their receivers were measured simultaneously for each pair. Two of these pairs were examined under double-blind test conditions, by which the Qi-receivers, as well as all researchers, could not know the time when the Qi-gong masters emitted Qi. We have previously reported that the changes in the EEGs of Qi-gong practitioners while emitting Qi appeared as similar changes in the EEGs of their subjects. In this report no clear synchronized changes were found in the β waves. The a phase difference between the occipital and frontal regions (τm) of Qi-gong masters becomes significantly shorter during Qi-gong. Even under the double-blind test conditions, the τm of the receivers also became shorter during Qi-gong than that during the resting state. During quiet Qi-gong meditation by the practitioner, there was a small influence on his subject. The a peak-frequency of the three masters became faster during Qi-gong,and this was reflected in the receivers. The power value of the a waves tended to decrease during Qi-gong, as we have reported before. However, its changing rate was small. These results show that 'Qi' is not merely a so-called placebo, but something that can be transmitted trans-personally.
著者
安田 佳永 矢野 理香
出版者
日本看護技術学会
雑誌
日本看護技術学会誌 (ISSN:13495429)
巻号頁・発行日
vol.18, pp.1-8, 2019 (Released:2019-04-20)
参考文献数
26

本研究の目的は, 静脈穿刺における血管怒張手技の怒張効果検証のための実験設計, 測定方法, 実施後の怒張効果に焦点を当て, 血管怒張手技の有効性の研究動向を明らかにすることである. Cooper (1998) の統合的文献レビューの方法を参考に行った. 国内文献は医学中央雑誌web版, 海外文献はCINAHL web版およびPubMedを用いて, 「 (血管AND怒張) AND穿刺」, 「 (血管AND拡張) AND穿刺」, 「 (静脈AND怒張) AND穿刺」, 「 (静脈AND拡張) AND穿刺」をキーワードとし, 文献検索を行った結果, 10件の国内文献と6件の海外文献が分析対象となった. 結果, 80%以上が駆血と温罨法に関する文献だった. 血管怒張手技により, 血管断面積や血管径は大きくなり, 血管の深さは浅くなること, 穿刺成功率は増加し, 針の挿入時間は短縮されることが明らかになった. しかし, 同じ怒張手技でも研究間で実施時間や使用用具などの方法に差異があり, 怒張の程度は異なっていたため, 一概に手技の比較ができないと考えられた.
著者
川島 崇 川本 峻頌 積田 大介 下山 翔 宗政 一舟 友松 祐太 林 邦興 高木 友博
出版者
一般社団法人 人工知能学会
雑誌
人工知能学会全国大会論文集 第32回全国大会(2018)
巻号頁・発行日
pp.1E201, 2018 (Released:2018-07-30)

近年,インターネット上でユーザに対して店舗の紹介を行うサービスが増えてきている.各サービスでは同時に,ユーザの嗜好に合った店舗を表示させる分析が幅広く行われてきている.推薦の分野ではユーザのクリック情報が十分に存在する時には協調フィルタリングが高い性能を誇る.一般的にユーザ×アイテムの行列を作成した際データスパースの問題が発生するので新規ユーザに対応することが難しい.また十分にデー タが得られなかった場合,バンディットアルゴリズムなどを応用しているケースが見られる.バンディットアルゴリズムは各アームを十分に試行してそれぞれから報酬を得ることで学習を進めていくためアイテム数が多くなった場合に全てを学習するのは実質的に不可能である.新たなユーザが出てきた時に十分にデータを集める必要性は協調フィルタリングと同様の問題がある.上記の問題を解決すべく本稿では強化学習の価値関数の更新に多層ニューラルネットを用いた深層強化学習による推薦システムの提案を行う.
著者
村井 重樹
出版者
社会学研究会
雑誌
ソシオロジ (ISSN:05841380)
巻号頁・発行日
vol.52, no.3, pp.35-51,236, 2008-02-29 (Released:2015-06-06)
参考文献数
34

This paper aims to reconsider the concept of practice (pratique) in a present that is filled with uncertainty. To accomplish this, it will be useful to examine Bourdieu’s theory of practice (la théorie de la pratique) and his concept of habitus. According to Bourdieu, practice is produced by an embodied habitus, which includes practical hypotheses (hypotheses pratiques) accompanied by the past and the future, and which is engendered by social structures. Hence, habitus is the key to an understanding of practice, not only for Bourdieu, but for us as well. However, it seems that his definition of the relation between habitus and practice excessively restricts the range of practical action (practice). In fact, Bourdieu’s habitus finds its reality in an embodied past, and for this reason he is unable to sufficiently consider the significance of an uncertain present in practice. In contrast, Mead claims that “reality exists in a present” and recognizes that the uncertain present is important to our understanding of practice. According to Mead, past and future are oriented in the present, and novelty is found in it. That is, the present is also a site for the reformulation of meaning. In particular, this will be true for problematic situations which cannot be adequately illustrated using Bourdieu’s habitus. Through this examination of practice from the perspective of an uncertain present, I will try to demonstrate that habitus must be connected with the novelty of the present, and that practical hypotheses are questioned and reconstructed through the novelty that is in the present.