건축현장작업의 Human Factors 적용에 관한 연구

김상렬,박일철,박종권,박종근,이영섭 한국산업안전학회 1998 한국안전학회지 Vol.13 No.1

In current domestic constriction field, several factors influencing the safety for field workers are various due to the size and complexity of construction works involved. Among the factors, the age is the important one, because the average age of workers is getting older due to the 3D phenomena in construction fields. The safety for workers of all ages is important, but especially safety for the old, is more important. Thus, the fundamental techniques for placement of field workers with adequate safety corresponding to complexity and hard works are investigated through analyzing fatigue and heart rate of individual worker, especially for the old.

작업환경에서 의자 및 조명 조건이 근로에 미치는 영향에 관한 연구

김종석,차상은,김상렬,이승주,김정동 한국산업안전학회 1998 한국안전학회지 Vol.13 No.1

This field study was conducted to survey the effect of seating & lighting conditions on work. The results were as follows ; Discomfortable parts of body caused by unsuitable sitting postures on work were low back 52.05%, leg 15.75%, neck 14.38% and arm 9.59%. Work conditions of sitting postures were needed arm rest, back rest of seat and adjustable seat height. Effect of work efficiency by lighting conditions were statistically significant relationship between glaring state of workstation and lighting state.

장염환자에서의 Campylobacter fetus subsp . jejuni 분리율

이귀녕,정윤섭,이삼열 대한미생물학회 1982 大韓微生物學會誌 Vol.17 No.1

C. fefus subsp. Jejuni has been reported to be an important enteric pa.thogen in many parts of the world. Although the infection has been reparted in Korea, the incidence is not known. In this :study the reaults of stool culture during the period oi August 1981 to July 1982 at Yonsei Medical Center was ana.lyzed and the foliowing resuits were obtaioed. 1. C. fetus subsp. Jejuni was isolated from 0. 8/a of stool specimens. The isolation rate was lower than that of salmonella (3.3%) and shigella (7.1%). The isolation was most frequent in June and from 15-year-old patients. 2. All of the isola.tes from the patients were susceptible to chloramphenicol aod erythromycin. It was noteworthy that 4 isolates were resistant to all of the aminoglycosides, I,e., amikacin, gen- tamicin, kanamycin and tobramycin. 3. We also isolated C. fetus subsp. Jejuni iram chicken. When the susceptibility of the isolates was compared to that of tbe isolates from human the former were less susceptible to erythro- myein (34.1%) and tetracycline (38.6%).

보수 보강된 철근콘크리트 보의 휨 및 전단 거동에 관한 연구

김태봉,이재범,류택은 한국산업안전학회 1999 한국안전학회지 Vol.14 No.1

This study presents test results of RC beams strengthened by steel plates, carbon fiber sheets(CFS) and aramid fiber sheets(AFS) for increasing flexural and shear resistance. The test was performed with different parameters including the type of strengthening materials, flexural-strengthening methods and shear-strengthening methods. In case of flexural test, RC beams are initially loaded to 70% of the ultimate flexural capacity and in case of shear test loaded to 60 or 80 percent of the ultimate shear capacity and subsequently reinforced with steel plates, CFS and AFS. Experimental data on strength, steel strain, deflection, and mode of failure of the reinforced beams were obtained, and comparisons between the different shear reinforced schemes and the non-strengthened control beams were made. The test results showed that damaged RC beams strengthened by steel plates, CFS and AFS have more improved the flexural and shear capacity. For the beams with external reinforcement by steel plates, aramid fiber sheets and carbon fiber sheets increases in ultimate strength of 4 to 21, 17 to 43 and 26 to 36 percent were respectively achieved. Initial load had small effect on strength after reinforcement, but an important influence on deflection. One sheet reinforced was stronger than two sheets reinforced but less deflected than two sheets reinforced.

도시와 공장폐수의 단독처리와 혼합처리의 비교연구

최의소,주재형,권수열,이윤석 고려대학교 공학기술연구소 1985 고려대학교 생산기술연구소 생기연논문집 Vol.21 No.1

Municipal biological treatment systems are usually designed to treat domestic waste with a small fraction of industrial wastes. However, a question could be raised how to treat the wastes when the industrial fraction is increased: joint vs individual treatment systems. A laboratory activated sludge unit was operated in this study by feeding industrial, domestic and combined wastes to evaluate design constants to be required for the comparison of these two systems.

미분탄 취입량 증가에 따른 고로내 펠릿의 고온특성

이상호 대한금속재료학회(대한금속학회) 2001 대한금속·재료학회지 Vol.39 No.10

A study on the preferred physico-chemical and metallurgical properties of MgO based pellets have been undertaken under high PCR BF operation condition, assuming higher pellet ratio in a ferrous burden in order to secure a higher productivity of sinter plants. Various experimental condition simulating a high PCR operation were aimed at evaluating commercial pellets under a high production rate operation. Higher burden weight resulted in a lowering of the softening temperature, whereas an increase of hydrogen content in the reducing gas raised the softening temperature. As a result of various changes inside the furnace with increased PCR, the size-consist of all charge materials must be controlled and maintained aside from monitoring metallurgical properties of them.

역사의 대상인가 전제인가 ?

달하우스,이석원 한국음악사학회 1992 韓國音樂史學報 Vol.8 No.1

광섬유 센서를 이용한 절연유의 방전신호 및 감쇄특성 측정

김태영,김상준,남진호,서광석,이수묵 고려대학교 공학기술연구소 1999 공학논문집 Vol.37 No.1

This paper presents the preliminary results on the application of optical fiber sensor(OFS) for the measurements of discharging signal and degradation in insulation oil such as transformer and silicone oil. An OFS system using a Mach-Zehnder interferometry technique was built to detect attenuation of acoustic signal produced by discharging. Simultaneous measurements were made of electrical signal and OFS signal from discharge. It was found that the arcing signal produced by needle-sphere electrode system could be detected by OFS installed in an oil bath. With increasing OFS distance from an arcing spot, the attenuation of acoustic signal became greater. From the results of sound attenuation for various insulation oils, the linear relationship was observed between the attenuation signal and viscosity in log scale. Details of these results are discussed.

고등학교 윤리교과서에 나타난 유학의 검토

이종우(Yi JongWoo) 성신여자대학교 교육문제연구소 2008 교육연구 Vol.44 No.-

고등학교 윤리교과서에 나타난 유학에서 그 용어를 엄밀하게 써야함에도 불구하고 그렇지 못한 점이 있다. 예를 들면 유학의 인, 성리학 등이 그러하다. 유학이란 공자, 맹자, 순자 그리고 후대의 주희까지도 포함한다. 성리학도 마찬가지로 주희 뿐만 아니라 그 이전의 정호와 정이 그리고 후대의 학자인 이황과 이이의 이론까지도 포함한다. 그 내용에 있어서도 정확한 표현에서 적절하지 않은 설명이 나타나고 있다. 인을 ‘어짐’, ‘사랑’이라고 표현한 것을 비롯하여 ‘天命之謂性’을 ‘천성은 인성과 같다는 것이다.’라고 표현한 것을 그 예로 들 수 있다. 또한 이황의 理發而氣隨之와 氣發而理乘之, 이이의 氣發而理乘之는 사단칠정설임에도 불구하고 그러한 언급이 없다는 것은 정확한 표현이 아니다. 현행 고등학교 윤리교과서에서 과거의 유학을 현대의 고등학생들에게 가르치기 위하여 현재 사용하고 있는 용어로 설명하는 것은 어쩔 수 없으나 그것이 정확해야 함에도 불구하고 그렇지 못하다는 것이 문제점이라고 할 수 있다. High school ethics textbook not strict on Confucianism conception. It is example humanity〔仁〕and New Confucianism. Confucianism include Confucius and Mencius and Xunzi and Zhuxi. New Confucianism include not only theory of Zhuxi but also Cheng Hao and Cheng Yi and Yi Hwang and Yi Yi. High school ethics textbook not strict on Confucianism contents. It was write that humanity〔仁〕translate benevolence or love. It was write that god an order equal human nature translate nature of god equal nature of human. It is not strict that mutual revelation of Yi Hwang and one side revelation Yi Yi of theory principle〔理〕and vigor〔氣〕. It is theory of four virtue and seven emotion of Yi Hwang and Yi Yi. High school ethic textbook not write on theory of four virtue and seven emotion of Yi Hwang and Yi Yi. High school ethics textbook not strict on Confucianism conception and theory.

퇴계학파의 『역학계몽』 이해

이선경(Yi Suhn-gyohng) 한국양명학회 2011 陽明學 Vol.0 No.28

주희(朱熹)의 『역학계몽(易學啓蒙)』은 조선의 상수역학을 이해하기 위한 핵심적 문헌이다. 이 논문은 조선의 『역학계몽』 관련 연구들 가운데, 퇴계학파의 『역학계몽』 이해를 살펴본 것이다. 이황(李滉)의 『계몽전의(啓蒙傳疑)』는 조선의 『역학계몽』 관련 저작 가운데 최초의 본격적 연구서라 할 수 있으며, 이 저작은 특히 후대 퇴계학파의 『역학계몽』 연구에 지대한 영향을 끼친다. 본고에서는 이황이 『계몽전의』를 저술한 문제의식이 무엇이며, 『계몽전의』에서 다룬 주요 쟁점이 무엇인지를 규명하고 그것이 후대 퇴계학파의 『역학계몽』 연구에서 어떻게 수용되고 있는지를 밝힌다. 그리하여 퇴계학파 『역학계몽』 이해의 종합적 특징을 드러내는 것을 목표로 한다. 『역학계몽』에 대한 완벽한 이해를 도모하였던 이황의 태도는 후세의 연구자들에게도 일관된 모습으로 드러나며, 주석들 간의 불일치를 해소하고자 하는 연구방식 역시 동일하다. 그러나 그들의 연구는 『계몽전의』를 묵수하거나 옹호하는데 있지 않으며, 『계몽전의』를 통하여 해결되지 않은 문제들을 다시 쟁점화하고, 그에 대한 조선의 선배학자들의 견해를 검토하며 자신의 견해를 제시한다. 이렇게 『계몽전의』를 중심으로 연구사의 축적을 통해 『역학계몽』 이해의 완전성을 추구해가는 모습은 다른 학파와 구별되는 퇴계학파 『역학계몽』 연구의 특징이라 할 것이다. 『계몽전의』에 나타난 태극논의는 이황이 상수학(象數學)을 통하여서도 리(理)의 필연성과 주재력을 확보하고자 하였음을 보여주며, 이는 『계몽전의』 가상수학 저술이지만 그 안에 이학적(理學的) 관심이 내재하였음을 의미한다. 다만 후대 퇴계학파의 『역학계몽』 연구에서는 이학적 관심이 뚜렷한 경우와, 이학적 관심과는 별도로 도수적(度數的) 연구에 치중한 경우로 나뉨을 볼 수 있다. 후자의 경우 19세기 저작들에서 뚜렷이 드러나며 이는 퇴계학파 안에 내재하던 하나의 흐름이 19세기에 이르러 결실을 맺은 것으로 생각된다. Zhu Xi’s Yi Xue Qi Meng(『易學啓蒙』) is the core text in understanding the Image-Number(象數) Theory of Chosun Dynasty. Among the literature on Yi Xue Qi Meng during Chosun period, this article focuses on the work of the school of Toegye (退溪). Yi Hwang’s Qi Meng Zhuan Yi (『啓蒙傳疑』) is known as the first full-scale research work of Yi Xue Qi Meng written in Chosun period. It also had tremendous influence upon the subsequent research of Yi Xue Qi Meng in Chosun. This article has three aims: it (ⅰ) examines Yi Hwang’s motivation of writing Qi Meng Zhuan Yi, (ⅱ) spells out the main issues appearing in Qi Meng Zhuan Yi, and (ⅲ) investigates how it affects the subsequent study of Yi Xue Qi Meng performed by the followers of Toegye. As a result, this article will reveal principal characteristics of Yi Xue Qi Meng research performed by the school of Toegye. Just as Yi Hwang, his followers sought perfect understanding of Yi Xue Qi Meng while resolving the inconsistencies among the annotations of the text. In doing so, they did not merely keep to Qi Meng Zhuan Yi. Rather, they raised questions on the unresolved issues in the text, examined the predecessors’ views on them, and developed their own solutions. Their work is distinct in that they pursued the perfection in understanding Yi Xue Qi Meng by means of accumulating research on Qi Meng Zhuan Yi. The discussion of Tai-Ji (太極) in Qi Meng Zhuan Yi reveals that Yi Hwang intended to establish the necessity and predominance of Li (理) even in his theory of Image and Number (象數學), which suggests that Qi Meng Zhuan Yi embraces the subjects of Neo-Confucianism, though it is primarily a work of image-number theory. Later the analyses of Yi Xue Qi Meng diverged among the followers of Toegye: some took an interest in the theory of Li while others concentrated on the study of nature. In particular, the theoretical traits of the latter are conspicuous in their work in the 19th century, which suggests that one stream of Toegye School bore fruit in the 19th century.