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Kazuhiro Oki,Yusuke Kurita,Kentaro Watanabe,Ryosuke Chiba,Yoshiki Shimomura (사)한국CDE학회 2010 한국CAD/CAM학회 국제학술발표 논문집 Vol.2010 No.8
Recently, economic conditions have been worsening and the structure of industry has been changing dramatically. To cope with this condition, a highly creative service has become important topic since its creative contents are one of the effectiveness ways to differentiate a firm’s services from those of its competitors. However, there have been only few studies that directly support the creation of new service contents, e.g., a design support system for service by using information-processing technology. In this paper, we propose a design support system for service with the aim of fulfilling target customer requirements by using the knowledge of different service’s business.
Kazuhiro YOKOTA,Daiki ITOU,Toru WATANABE 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.춘계 No.-
This paper proposes a novel lightweight robot arm for astronautical development by using honeycomb structure. Honeycomb structure is one of such lightweight material and already used in astronoutical field mainly for large panels. Besides, Carbon-Fiber Reinforced Plastic (CFRP) is already known to be a lightweight and strong material. In this study, authors propose to apply honeycomb structure with CFRP to realize lightweight and compact atm. An analytical model conforming to precise dimension is built and its mechanical property is investigated theoretically. The present result is compared with previous.
Kazuhiro Sugawara,Masaki Katayose,Kota Watanabe 대한척추외과학회 2016 Asian Spine Journal Vol.10 No.5
Study Design: Cross-sectional study of healthy volunteers. Purpose: We aimed to investigate the variation in the lumbar facet joint orientation in an adult Asian population. The relationship between the facet joint orientation and muscle cross-sectional area (CSA) of multifidus and erector spinae was also clarified. Overview of Literature: Several studies have reported that lumbar pathologies, such as lumbar spondylolysis and degenerative spondylolisthesis, were related to the horizontally shaped lumbar facet joint orientation at the lower lumbar level. However, data regarding variations in the facet joint orientation in asymptomatic subjects have not been well documented. Methods: In 31 healthy male adult Asian volunteers, the facet joint orientation and CSA of multifidus and erector spinae were measured using magnetic resonance imaging at the L4–5 and L5–S1 levels. Variation in the facet joint orientation was examined using coefficients of variation (CV). Pearson’s product-moment coefficient was used to investigate the relationship between the facet joint orientation and CSA of multifidus and erector spinae. Results: Lumbar facet joint orientation had a wider range of variation at L5–S1 (CV=0.30) than at L4–5 (CV=0.18). The L4–5 facet joint orientation had a weak but significant correlation with the CSA of erector spinae (r =0.40; p=0.031). The CSA of the multifidus had no relationship with the facet joint orientation at the L4–5 (r =0.19; p =0.314) and the L5–S1 level (r =0.19; p =0.312). Conclusions: The lumbar facet joint orientation was found to have a wide variation, particularly at the L5–S1 in the Asian adult population, and the facet joint orientation had a relationship with the CSA of the erector spinae at the L4–5.
Hirohisa Watanabe,Yuichi Riku,Kazuhiro Hara,Kazuya Kawabata,Tomohiko Nakamura,Mizuki Ito,Masaaki Hirayama,Mari Yoshida,Masahisa Katsuno,Gen Sobue 대한파킨슨병및이상운동질환학회 2018 Journal Of Movement Disorders Vol.11 No.3
Multiple system atrophy (MSA) is an adult-onset, progressive neurodegenerative disorder. Patients with MSA show various phenotypes during the course of their illness, including parkinsonism, cerebellar ataxia, autonomic failure, and pyramidal signs. Patients with MSA sometimes present with isolated autonomic failure or motor symptoms/ signs. The median duration from onset to the concomitant appearance of motor and autonomic symptoms is approximately 2 years but can range up to 14 years. As the presence of both motor and autonomic symptoms is essential for the current diagnostic criteria, early diagnosis is difficult when patients present with isolated autonomic failure or motor symptoms/signs. In contrast, patients with MSA may show severe autonomic failure and die before the presentation of motor symptoms/signs, which are currently required for the diagnosis of MSA. Recent studies have also revealed that patients with MSA may show nonsupporting features of MSA such as dementia, hallucinations, and vertical gaze palsy. To establish early diagnostic criteria and clinically definitive categorization for the successful development of disease-modifying therapy or symptomatic interventions for MSA, research should focus on the isolated phase and atypical symptoms to develop specific clinical, imaging, and fluid biomarkers that satisfy the requirements for objectivity, for semi- or quantitative measurements, and for uncomplicated, worldwide availability. Several novel techniques, such as automated compartmentalization of the brain into multiple parcels for the quantification of gray and white matter volumes on an individual basis and the visualization of α-synuclein and other candidate serum and cerebrospinal fluid biomarkers, may be promising for the early and clinically definitive diagnosis of MSA.
概念ベースのオーストリア「歴史・社会・政治科」の授業構成 - 市民性育成からみた概念の機能に注目して -
草原 和博(Kazuhiro Kusahara),川口 広,美(Hiromi Kawaguchi),金鍾成(Jongsung Kim),渡邉,巧(Takumi Watanabe) 한국사회과수업학회 2020 사회과수업연구 Vol.8 No.1
要旨:本稿は,オーストリアの「歴史・社会・政治科」の「概念ベース」の授業を分析し,政治的市民性の育成からみた概念の機能を明らかにすることを目的とする。分析の結果,以下3点の機能を導くことができた。第1に,科学者が提起する概念を活かして,国家・社会のしくみを自立的に批評する機会を与えること,第2に,個々人に由来する概念を活かして,人々の判断基準の多様性を経験させること,第3に,歴史的に構築された概念を活かして,判断基準を再定義し,継承していく責任を行使させること。このように概念ベースの授業は,民主主義社会の形成者に求められる多様な経験を与えることができる。すなわち,それは,社会科学教育の範疇に留まるものではなく,市民性教育の理念とも齟齬を来さないことが明らかとなった。オーストリアにおける概念ベースの授業は,論争問題を取り上げ,主張と主張,価値観と価値観,感情と感情が直接的にぶつかるようなハードな討論学習とは性格を異にする。むしろそれを回避し,現実社会の対象化を保証しつつ,概念による解釈や概念の定義をめぐるソフトな対話を引き出している点で,注目に値する。 This paper analyzes the “concept-based” lessons of “history, social studies and political education” in Austria and aims to clarify the function of concepts in terms of the citizenship education. The results of the analysis led to the following three functions First, the concepts raised by scientists should be used to give them the opportunity to critique the workings of the state and society independently; second, the concepts derived from the individual should be used to experience the diversity of people s perspectives of judgment; and third, the historically constructed concepts should be used to exercise the responsibility of redefining and reconstructing the social norm embedded in the community. Such concept-based teaching can provide the diverse experiences required for the democratic citizen. In other words, it is not limited to the category of social science education and does not conflict with the idea of citizenship education. Concept-based teaching in Austria takes on controversial issues and is different in character from “hard deliberation”, where claims and arguments, values and values, and feelings and emotions directly collide. Rather, it is noteworthy in that it avoids it and draws out a “soft dialogue” around the interpretation by concepts and definition of concepts, while guaranteeing the objectification of the real world.
The Effect of the Aging of Red Blood Cells on Rheological Properties and Hemolysis
Jun TOMIOKA,Kazuhiro MOTOKUBO,Hisayoshi WATANABE 한국트라이볼로지학회 2002 한국트라이볼로지학회 학술대회 Vol.2002 No.10
It is well known that red blood cells (RBCs) are suffered from chronic stresses in systemic circulation. The objective of this study is to clarify the effect of the aging of RBCs on rheological properties and hemolysis. Initially, RBCs age fractionation was performed by using a high-speed centrifugation (15[min] at 1500[G]), then young and aged RBCs were suspended in plasma to adjust the hematocrit level of 40[%]. After this pretreatment, the viscosity was measured by using a capillary type and a cone-plate type viscometers, respectively, and the hemolysis test was carried out by a seesaw type shaker. Results from these experiments showed that the viscosity of the aged RBCs measured by the capillary viscometer was increased by 10[%] as compared with that of the young RBCs. Under the condition of all shear zones, the viscosity of the aged RBCs was increased in case of using the cone-plate type viscometer. And the hemolytic level was increased twice as the aging. The data obtained in this study indicated that the ability of aggregation of RBCs was increased and the deformability of RBCs' membrane got lower with the aging. Furthermore, it was exhibited that the fragility of RBCs' membrane was increased with the aging.