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최병호,유봉선,박원욱,박익민 대한금속재료학회 2004 대한금속·재료학회지 Vol.42 No.8
The effects of Ca addition on the liquid oxidation behaviors of AZ91 alloys have been investigated. The oxide layers formed on the molten Ca-containing AZ91 alloys were investigated by using scanning electron microscope and Auger electron spectroscopy in order to elucidate the effect of Ca additions on the ignition and burning of the molten alloys. The thermogravimetric measurements indicated that Ca-containing AZ91 alloys have good oxidation resistance. AES depth analysis revealed that the oxide layers on the molten Ca-containing AZ91 alloys consisted of several layers; the outer layer mainly consisted of CaO and the inner layer was mainly a mixture of CaO-MgO and Al₂O₃. The formation of protective CaO in the oxide layer was directly responsible for improved oxidation resistance of the Ca-containing AZ91 alloys.
초음파탐상 PD-RR Test의 통계적 신뢰도 평가 (Ⅲ) : a Round Robin Test Reesult (Part Ⅲ)
박익근,박은수,김현묵,박윤원,강석철,최영환,이진호 한국비파괴검사학회 2003 학술대회 논문집 Vol.- No.1
국내 원전의 건전성 및 안전성 확보에 직결되는 자동 초음파검사의 신뢰도 및 검사시스템의 기량을 평가하기 위해 자동UT-PD RRT를 수행하였다. 수행된 RRT의 조건은 2001년 수동 PD-RRT에 적용된 설계변수와 동일하다. 본 연구에서는 자동 UT의 결함검출확률 및 오판확률과 결함크기측정에 대한 불확도 분석을 이용하여 자동 초음파검사의 통계적인 신뢰도를 평가하고 수동 UT PD-RRT의 결과와 비교하여 기량을 검증하고자 한다. 이러한 연구결과를 토대로 향후 각종 비파괴검사에 대한 RRT를 수행하여 기술수준을 파악하고 비파괴검사기술의 발전을 도모할 수 있을 것으로 판단된다.
편도선 절제술 중 Epinephrine 국소침윤에 의한 심정지와 급성 폐부종 1예
안익순,최준석,박천희,이철승,김원태,임경준 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.3
Hemostasis and a clear surgical field are obtained by the local infiltration of a local anesthetic mixed with epinephrine during tonsillectomy. However, epinephrine may in itself, due to its cardiovascular effect, cause arrhythmia, heart failure, Pulmonary edema, and even cardiac arrest. We describe a 22-year-old patient who developed cardiac arrest due to epinephrine infiltration during tonsillectomy. The patient was resuscitated and recovered without any sequele after intensive treatment.
근력과 파워를 위한 weight training의 light-to-heavy system과 heavy-to-light system의 효율성 비교
박원익,양점홍,최재현,김형태 釜山大學校 附設 體育科學硏究所 2004 體育科學硏究所 論文集 Vol.20 No.-
The subject of this study was 20 male students in the third grade of N high school in B metropolitan city, who were divided into two groups, light-to-heavy system(LHS) group(n=10) and heavy-to-light system(HLS) group(n=10)....
미세 골절 진달을 위한 초음파 C-scan의 활용 가능성
박원근,최민주,이원흠,이윤준,이헌주,강창익,박전홍 제주대학교 공과대학 첨단기술연구소 2001 尖端技術硏究所論文集 Vol.12 No.2
The study examines the medical potential of an ultrasonic C-scanning technique and for diagnosis of the fatigue induced micro-fractures of the bone. In general, it is not easy to detect the microfracture by a simple radiological technique. In the study, the microfractures were made on the tibia taken from pigs using a three point bending. Comparison was made between the ultrasonic C-scan images (25 MHz) and X-ray images of the bones with the micro-fractures, It was found that the micro-fractures invisible on the X-ray images were observed on the ultrasonic images. It is proposed further in-vitro and in-vivo studies making the ultrasonic C-scan technique clinically useful for the diagnosis of the fatigued induced micro-fractures of the bone which are not possible to detect by the conventional radiological method.
인문학 및 사회과학 학술지를 통해본 체제전환기 러시아 인문학·사회과학의 동향 : 1985-2000년대 초
한정숙,박원용,최우익 서울대학교러시아연구소 2002 러시아연구 Vol.12 No.2
This article is a parallel analysis to the database of seven sorts of Russian academic journals for the period of the transformation (from 1985 to the early 2000s.) The database was made by authors of this paper with the aim to offer an easy way to search the title, author and subject of writings (articles, translations, reminiscences, round table talks and dialogues) published in the fields of philosophy, history, politics, sociology and economics. This work gave us the chance to overview the study trends of humanities and social sciences in Russia by examining the changing subjects, theoretical premises and methodological approaches of the intellectuals productions published in the journals. Authors chose the above ` mentioned five academic disciplines as our study object because these are considered (so to say, as ideology-related disciplines) to have experienced the most remarkable transformation since the beginning of Gorbachev's policy of Perestroika and Glasnost. During the Soviet Period, studies and publications in these fields were under strong influence of the official ideology of the Communist Party, which always tried not to lose tight control of intellectual activities in almost all aspects. The gradual manifestation of arguments not subjected to the party line was possible since the middle of the 1980s, when Gorbachev's "reform of socialism" policy allowed critical approach to Stalinist legacy of the Soviet regime and search for alternatives to the existing economic and social (later, also political) system. Though each discipline differs in the degree and depth of change, authors of this paper are of the opinion that a remarkable process of transformation can be found in all the concerned fields especially after the collapse of the Soviet Union. The period of Perestroika was more devoted to self-criticism and search of alternative within the frame of socialist legacy. In general it was a time of a rather moderate iconoclasm. After the disintegration of the Soviet Union the genuine intellectual transformation began. All possible arguments emerged, but the construction of a new intellectual frame of reference for the Russians was not easy. In the early period of rapid system transformation, Russian scholars were rather hastily importing methodologies and perspectives of western scholars and tried to use them as tools for analysing circumstances of their own country as well as of the entire world. On the opposite side of the Westphilism one could also find a rather extreme trend of Russian nationalism (or neo-Slavophilism). It seemed that the Russian intellectuals wanted to compensate intellectual losses caused in the past by the Party control through absorbing every possible argument that stands outside of traditional Soviet intellectual horizon. This phenomenon was in itself understandable enough, but the whole sight of discourses was rather unclear and somewhat confusing too. It was a period of "search of exit in every direction". In recent years however, observers can ascertain a much stabler atmosphere among the Russian researchers in every academic discipline concerned. Authors of this paper share the view that Russian scholars and intellectuals are overcoming their once apparent extremism - whether in the direction to Westphilism or to nationalism. Open-minded to international scholarship and discussion, they are at the same time more self-confident than during the first half of the 1990s. One can hope that it would lead to intellectual works more productive and persuading for the Russians as well as for the entire world.
달리기 운동 프로그램이 시각장애인의 건강관련 체력에 미치는 영향
이명수,양점홍,홍순미,최재현,박원익,이창준 釜山大學校 附設 體育科學硏究所 2004 體育科學硏究所 論文集 Vol.20 No.-
The purpose of this study was to find out the effect of jogging(LSD ; Long Slow Distance) and walking training on health-related fitness of the blind.....
급성 조증에서 기분안정제와 리스페리돈의 병합 투여 효과 : 다기관 개방연구
김광수,배치운,윤진상,김영훈,이양현,지익성,이철,송혜경,최성구,박원명 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.2
Ohjective : The primary purpose of this study was a replication of the effectiveness and tolerability of rispehdone in the treatment of patients with acute mania in very larger cohon in naturalistic treatment setting to extend the data on the effect and tolerability of risperidone in the treatment of patients with acute mania to Asian population. Methods : A total of 909 patients with DSM-TV criteria of bipolar disorder current manic and hypomanic episode, entered this large, open, multicentre study. The Young Mania Rating Scale (YMRS), Clinical Global Impression (CGI) and Simpson-Angus Rating Scale (SARS) were measured at baseline and weeks 1, 3 and 6, for the assessment of effectiveness and extra-pyramidal symptom (EPS). Results : This study showed statistically significant reduction of scores on the YMRS and CGI-s (mean change=-23.5±11.8, p<0.0001 ; mean change=-2.7±1.5, p<0.0001, respectively) from the baseline to the endpoint (week 6). Number of patients with 50% reduction or more in the YMRS and CGI-s scores was 693 (77.8%) and 630 (70.7%) at endpoint, respec-tively. There were no statistically significant increments of scores on SARS. Risperidone was generally well tolerated. Conclusion : The present larger open study demonstrates that hsperidone add-on therapy is effective and tolerable in treat-ment of bipolar disorder, replicating results in various controlled and uncontrolled studies from Western countries.