著者
中島 晶 久保田 祥 佐々木 克彦 柳沢 祐介 岸 恭弘
出版者
一般社団法人 日本機械学会
雑誌
M&M材料力学カンファレンス
巻号頁・発行日
vol.2017, 2017

<p>The subject of this paper is to calculate the residual stress occurred during heat treatments of the large forged steel using Finite Element Method (FEM). The analysis was carried out using a cylindrical FEM model of ASTM-A-470 used in rotor shafts for power stations. First, a heat transfer analysis was performed to obtain a temperature history, which is used to calculate material properties at varied temperatures. Then, using the temperature history, structure analyses were conducted considering both the creep deformation and the transformation plasticity. The residual stresses calculated by the structure analysis were compared with the value measured by experiments. As a result, the calculated residual stresses have the same tendency as the measured residual stresses when both the creep and transformation plasticity are considered. Therefore, the importance of both the creep and transformation plasticity for the structural analysis of the heat treatment of the large forged steels was confirmed. In addition, the effect of the cooling rate to the residual stress was also discussed.</p>
著者
相沢 亮汰 石井 慶子 麓 耕二
出版者
日本実験力学会
雑誌
実験力学 (ISSN:13464930)
巻号頁・発行日
vol.19, no.4, pp.281-286, 2020-01-20 (Released:2020-01-25)
参考文献数
11

Heat transport devices using temperature-sensitive magnetic fluids are fast to start, have high heat transfer efficiency, and can be downsized. In addition, it has the advantage that it is not affected by the installation posture compared to conventional heat transport equipment. In order to apply a temperature-sensitive magnetic fluid to a heat transport device, it is necessary to clarify the heat flow characteristics of this fluid. However, since the ferromagnetic particles in the fluid are black and fine, observation with a microscope was difficult. In this study, the microcapsules contain a temperature-sensitive magnetic fluid, which enables fluorescence observation. Capsules were made by mixing a temperature-sensitive fluid, polymer, organic solvent, and fluorescent dye and dispersing in pure water mixed with a surfactant. Microcapsule aqueous solutions have been shown to have properties similar to magnetic fluids. When this solution was flowing, it was confirmed that when a magnetic field was applied, clusters were formed near the wall and a unique velocity distribution was formed. It was confirmed that as the solution temperature increased, the possibility of cluster formation decreased.
著者
Hitoshi OKAZAWA
出版者
The Japan Academy
雑誌
Proceedings of the Japan Academy, Series B (ISSN:03862208)
巻号頁・発行日
vol.93, no.6, pp.361-377, 2017-06-09 (Released:2017-06-12)
参考文献数
68
被引用文献数
2 8

The concept of neurodegenerative diseases and the therapeutics targeting these intractable diseases are changing rapidly. Protein aggregation as the top of pathological cascade is now challenged, and many alternative ideas are proposed. Early molecular pathologies before microscopic detection of diseases protein aggregates, which I propose to call “Ultra-Early Phase pathologies or phase 0 pathologies”, are the focus of research that might explain the failures of clinical trials with anti-Aβ antibodies against Alzheimer’s disease. In this review article, I summarize the critical issues that should be successfully and consistently answered by a new concept of neurodegeneration. For reevaluating old concepts and reconstructing a new concept of neurodegeneration that will replace the old ones, non-biased comprehensive approaches including proteome combined with systems biology analyses will be a powerful tool. I introduce our recent efforts in this orientation that have reached to the stage of non-clinical proof of concept applicable to clinical trials.
著者
北川 博巳 土居 聡 三星 昭宏
出版者
Japan Society of Civil Engineers
雑誌
土木計画学研究・論文集 (ISSN:09134034)
巻号頁・発行日
vol.17, pp.981-987, 2000-09-30 (Released:2010-06-04)
参考文献数
15
被引用文献数
2

本研究では, 高齢化に対応した歩行空間の一施設としてのベンチのあり方について考える. そのため, 交通困難を持つ高齢蓄・障害者を対象とした意識調査データを用いることにより, 交通困難者の歩行意識とベンチの必要性について分析する. つぎに, ベンチの実際の使用について観泪鯛査, および利用者を対象としたヒアリング調査を実施し, ベンチ利用の実態を明らかにする. さらに, これらの知見を活かした上で, ベンチ設置の規模や程度をどのように設定するか計画性を明らかにし, 今後の「歩いて暮らせるまちづくり」について考察することを目的とする.

1 0 0 0 OA 古事類苑

著者
神宮司庁 編
出版者
古事類苑刊行会
巻号頁・発行日
vol.第7冊, 1930
著者
門田 暁人 伊原 彰紀 松本 健一
出版者
日本ソフトウェア科学会
雑誌
コンピュータ ソフトウェア (ISSN:02896540)
巻号頁・発行日
vol.30, no.2, pp.2_52-2_65, 2013-04-25 (Released:2013-08-25)

ソフトウェアリポジトリマイニング(MSR)は,研究テーマの宝庫であり,大変魅力のある研究分野である.「ソフトウェアリポジトリ」という鉱山から,マイニング(宝探し)をすることで,新しい研究目的を見つけ出すことが研究の醍醐味となっている.特に,オープンソースソフトウェア(OSS)のリポジトリを対象とした研究が盛んであり,OSS開発の広がりとともにMSRの分野は発展してきた.本稿では,MSR研究の魅力,主な研究テーマ,マイニングの具体例,MSR分野の今後の発展について述べる.

1 0 0 0 OA 鋼の連続鋳造

著者
郡司 好喜
出版者
大同特殊鋼株式会社
雑誌
電気製鋼 (ISSN:00118389)
巻号頁・発行日
vol.53, no.1, pp.62-70, 1982-01-31 (Released:2009-05-25)
参考文献数
51

Recently, the advantages of the continuous casting process of steel, which include an improved product yield, energy saving, an improved working environment and an improvement of product quality, have come to be widely recognized. An outline of the history of continuous casting process is described in the paper. The paper outlines recent developments of technologies as follows:(1) Reduction of the surface defects.(2) Reduction of the internal defects.(3) Improvement of the productivity.(4) Automation.A summary of expectations for future developments of technologies with regard to productivity and product quality is also given. Finally, attention is drawn to the future developments of horizontal continuous caster and synchronized continuous caster of steel.
著者
川瀬 基弘
出版者
愛知工業大学
巻号頁・発行日
2010

identifier:http://repository.aitech.ac.jp/dspace/handle/11133/2278
著者
大場 眞理子 安藤 哲也 宮崎 隆穂 川村 則行 濱田 孝 大野 貴子 龍田 直子 苅部 正巳 近喰 ふじ子 吾郷 晋浩 小牧 元 石川 俊男
出版者
一般社団法人 日本心身医学会
雑誌
心身医学 (ISSN:03850307)
巻号頁・発行日
vol.42, no.5, pp.315-324, 2002-05-01 (Released:2017-08-01)
参考文献数
16
被引用文献数
3

家族環境からみた摂食障害の危険因子について調べるために,「先行体験」「患者からみた親の養育態度」について,患者からよく聞かれるキーワードを用いて質問表を作成し,健常対照群と比較検討した.その結果,「母親に甘えられずさびしい」がどの病型でも危険因子として抽出された.また患者群全体で「父親との接点が乏しい」も抽出され父親の役割との関連性も見直す必要性があると思われた.さらにANbpとBNにおいては,「両親間の不和」「両親の別居・離婚」といった先行体験の項目も抽出され,"むちゃ食い"が家庭内のストレス状況に対する対処行動としての意味合いをもつのではないかと考えられた.
著者
生野 照子
出版者
一般社団法人 日本心身医学会
雑誌
心身医学 (ISSN:03850307)
巻号頁・発行日
vol.29, no.3, pp.277-283, 1989-04-01 (Released:2017-08-01)

Children tend to show symptoms related to "eating." The causes for eating-related symptoms in children are often associated with the parent-child relationship. The author recently studied the parent-child relationship in connection with the eating behavior, taking intp consideration the current social background in Japan.The subjects of this study were 14 children (aged under then years) who visited our department with the chief complaint of one of various kinds of eating disorder. The psychological backgrounds of these children were analyzed. In a half of them, there had been troubles with food intake already in the early infantile period ; the addition of parent-child mental conflicts to these disturbances resulted in the onset of eating disorder. In the remaining half of the children, no eating-related symptoms had occurred in the early infantile period, but a crisis in the parent-child relationship had appeared at some occasion and eating disorder was induced as a reaction to that stress.Before the onset of eating disorder, all children had been more or less controlled by their parents (or the desires of the children had often been refused by their parents). After the onset of eating disorder, the children in turn controlled the behavior of their parents.In the familes of these children, the educational, physical and self-sufficient aspects of eating had been emphasized at the dining table, with little attention paid to the emotional exchange among family members at the dining table. Thus, the mental aspect of eating had been narrowed in these families.This state of dining table nehavior can distort the parent-child and familial relationships under the influence of the current social factors ; it makes the dining table a place where children feel heavy pressure, suffering, passive status and frustration.The questionnaire survery about anorexia nervosa also disclosed that an unsatisfactory emotional parent-child exchange is relfected in the dining table behavior. Such an ambivalent situation between parent and child produces an ambivalent parent-child relationship, resulting in ambivalent, morbid eating habits.