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Hideyuki Sekine 고려대학교 민족문화연구원 2007 民族文化硏究 Vol.47 No.-
민족의 기원이나 여러 민족 간의 계통관계에 관한 연구는 "과학적 지식"이 정치적 요건이나 연구자의 개인적 성향에 영향을 받을 수 있는 속성을 지니고 있기 때문에 이론 속에 임의성을 포함하고 있다. 17세기 이래 한국인과 일본인의 계통관계에 관한 다양한 대안들이 나왔다. 일본이 한국을 합병했을 때는 한국인과 일본인 사이에 계통관계가 있다는 패러다임이 학계를 지배하였다. 그러나 제2차 세계대전 후 그것은 침략 이데올로기로서 인식되었고 대신 두 민족에게 아무 계통관계가 없다는 패러다임이 일어났다. 그러나 유전자 연구가 발전한 오늘날 한국인과 일본인이 유전적으로 동질성 이 있다는 사실이 받아들여지고 있다. 이 분야의 발달은 한국인과 일본인의 계통연구의 패러다임 전환을 촉진할 수 있는 가능성이 있다. 나아가 그것은 두 민족의 문화적 계통관계에 관한 인문학에 영향을 미칠 수 있다. 필자는 이러한 시대적 상황을 감안해서 다음과 같은 앞으로의 연구 과제를 제안하고자 한다. 첫째, 제2차 세계대전 이후 한국인과 일본인의 계통연구가 부정된 패러다임이 형성된 사회적 요인을 각 학문분야별로 분석하는 일이다. 둘째, 그동안 기존의 패러다임으로 인해 대상으로 올라갈 기회를 얻지 못했던 계통연구를 재조명하는 일이다 셋째, 이와 관련된 지적 유산을 한국과 일본의 연구자가 공유할 수 있는 체제로 정비하는 일이다. The studies on the origin of a nation or on the genealogy among nations are apt to distort the scientific knowledges about the genealogy arbitrarily because they are influenced by political conditions, individual inclinations of researchers and so on. Since 17th century, various alternative theories about the genealogy between the Koreans and Japanese have been raised. When Japan annexed Korea, the paradigm which should admit the genealogy between the Koreans and Japanese dominated the academic world. However, it broke down because it was recognized as ideology for invasion. Instead, alternative paradigm which should deny genealogy between both nations dominated the academic world after the World War II. Nevertheless, by virtue of development of genetic researches it is accepted that the Koreans and the Japanese are genetically homogeneity. The further development of this field may promote paradigm shift in the genealogy between both nations again. And also it may influence humanities about cultural genealogy between both nations. I"m going to propose the following research subjects for the future. First, we should analyze the social factors in each reach field which have the paradigm that should deny the genealogy between the Koreans and Japanese formed after World War II. Second, we should re-illuminate the past and present researches on the genealogy between two populations which have been excluded in research programs because of the present paradigm. Third, we have to construct research systems through which researchers from Korea and Japan can share the intellectual inheritance concerning the genealogy between the Koreans and Japanese.
Dynamic Trend Analysis for Ultrasonic Irradiation in Control of Suspension Polymerization Process
Hideyuki Matsumoto,Masaya Honda,Hiroyuki Mori,Chiaki Kuroda 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
A purpose of the present paper is to demonstrate applicability of the method of dynamic trend analysis, which is based on the linear approximation technique and the cumulative sum technique, for monitoring of the reactor temperature data in the suspension polymerization process. By executing ultrasonic irradiation at the moment when an extracted segment changes, development of the dynamic trend analysis is investigated from the viewpoint of control of characteristics of polymer particles. Then, relationships between the dynamic trend analysis and the process control are also discussed by considering control of temperature rise under ultrasonic irradiation, which would influence on produced polymer particles.
Hideyuki Kasano,Teruhiko Yoda,Kuniei Nogami,Jun Murakoshi,Naoki Toyama,Mamoru Sawada,Kentaro Arimura,Lu Guo 한국강구조학회 2012 International Journal of Steel Structures Vol.12 No.3
Tension and shear block failure is a limit state which occurs in the connection of tension steel members. The failure mechanism is a combination of tensile failure on one plane and shear failure on the perpendicular plane. The design strength equations for the tension and shear block failure are described in the well known design codes. However, they provide inconsistent levels of safety when they are used in different types of connections. In this paper, the authors survey the design strength equations in the various codes. Then, the pertinent strength equations for the gusset plates of steel truss bridges are selected. Moreover, the authors propose a pair of strength equations for compression and shear block failure for gusset plates subjected to compressive force. And to examine the applicability of proposed equations and to investigate the mechanical behavior of compression gusset plates, parametric analyses on the various thicknesses of gusset plates were conducted.
Hypertension Is Related to Positive Global Sagittal Alignment: A Cross-Sectional Cohort Study
Hideyuki Arima,Daisuke Togawa,Tomohiko Hasegawa,Yu Yamato,Go Yoshida,Sho Kobayashi,Tatsuya Yasuda,Tomohiro Banno,Shin Oe,Yuki Mihara,Hiroki Ushirozako,Hironobu Hoshino,Yukihiro Matsuyama 대한척추외과학회 2019 Asian Spine Journal Vol.13 No.6
Study Design: Cross-sectional cohort study. Purpose: This study aimed to investigate the relationship between hypertension and spino-pelvic sagittal alignment in middle-aged and elderly individuals. Overview of Literature: Positive global sagittal alignment is associated with poor health-related quality of life. Hypertension is associated with tissue microcirculation disorders of the skeletal muscle. We hypothesized that hypertension may be involved in positive global sagittal alignment. Methods: In this institutional review board-approved study, 655 participants (262 men and 393 women; mean age, 72.9 years; range, 50–92 years) who underwent musculoskeletal screening in Toei town, Aichi, Japan were included. Whole spine and pelvic radiographs were taken, and radiographic parameters (thoracic kyphosis, lumbar lordosis, pelvic tilt, sacral slope, pelvic incidence, and sagittal vertical axis [SVA]) were measured using an image-analysis software. Hypertension was assessed using the standard criteria. The study participants were divided into three subgroups as per age (50–64 years, 65–74 years, and ≥75 years). We examined the differences in the radiographic parameters of those with and without hypertension in each age subgroup. Results: In each age subgroup, there was no significant difference in the age and sex of those with and without hypertension. SVA was significantly shifted forward in the hypertension group than in the non-hypertension group in those aged 50–64 years old (32.4 mm vs. 16.0 mm, p=0.018) and in those aged 65–74 years old (42.7 mm vs. 30.6 mm, p=0.012). There was no significant difference between the hypertension and non-hypertension groups in terms of the alignment of the lumbar and thoracic spine in all the subgroups. In multivariate analysis, hypertension was a significant independent factor of forward-shifted SVA (standardized beta 0.093, p=0.015). Conclusions: This study showed that hypertension was associated with forward-shifted global sagittal alignment.