건강식품 바이탈 및 비지놀의 抗疲勞 效果에 관한 연구

정경수,김혜경,김희수,김계양,곽영숙,김학범 충남대학교 약학대학 의약품개발연구소 1993 藥學論文集 Vol.9 No.-

As a result of extensive research efforts on the oriental medicinal herbs, some of their interesting biological activities have been elucidated. In the present study, antifatigue effects of two natural food supplements consisting of oriental herbs, Vital and Vigilor, were investigated using the ICR mice. The mice were fed with antibiotic-free normal mouse feed containing Vital or Vigilor for 14,28, or 31 days and then subjected to forced swim tests. In a test carried out in melting-ice water, Vital and Vigilor significantly increased the exhaustion times of the 28 day-fed mice by 26.9 % (p < 0.01) and 16.2% (p < 0.05), respectively. However, in the other test performed at 15±0.5℃ using 31 day-fed mice, Vigilor failed to increase the exhaustion time significantly (at p< 0.05), while Vital showed antifatigue effect by increasing the swimming time by 29.9% (p<0.01). Neither of Vital nor Vigilor exerted antifatigue effects in a swim test carried out on day 14 after the initiation of feeding. These results suggest that Vital and Vigilor exhert antifatigue effets when administered for a sufficient period of time by enhancing the health of the host animals.

흉곽 내시경을 사용한 척추 기형 수술시 학습 곡선

김학선,최윤락,이환모,문성환,김경희,박진오,하중원,신동은 대한척추외과학회 2003 대한척추외과학회지 Vol.10 No.3

現職敎師와 敎員養成所 受講生의 敎職態度에 關한 比較硏究

金學守,李熙道 慶北大學校 師範大學 1971 敎育硏究誌 Vol.13 No.-

Teachers' attitudes about the teaching profession, their personalities, and their teaching behaviors influence their students. This study was undertaken to investigate how teachers and the attendants at teachers training courses (ATC) differed in the attitudes about the teaching profession; Why did they enter the teaching profession, or why did they choose the teaching profession? How do they think of receiving the honor due to their profession? How much do they satisfy with the teaching profession? How long will they remain in the teaching profession? How do they think of the teachers training course? and How do they think of the ideal teacher's personality? The subjects were 385 elementary school teachers, 304 secondary school teachers, 350 attendants at teachers training courses for elementary school (ATCE), and 270 attendants for secondary school. (ATCS). The main findings of present study were as follows: 1. The main differences in the reasons why to choose the teaching profession between school teachers and ATC are that the elementary school teachers emphasize the value of esteem, while ATCE emphasize the value of social service. And ATCS emphasize the value of time to spare, whereas the secondary school teachers do not. 2. The teachers perceive they do not receive the honor due to their profession both socially and economically, whereas ATC ththink teachers are treated well. But the teachers and ATC agree that teachers are treated well from their students. 3. The teachers are unsatisfying with their teaching profession and few teachers are satisfying, while ATCS are very much satisfying to choose the teaching profession. In accordance with the above results, many teachers want to leave their teaching professsion more than ATC. 4. Both the teachers and ATC think that teachers must receive regular teachers training courses as well as educational practices. 5. The elementary school teachers think of the ideal teacher as more flexible and extraverted than ATCE, whereas ATCE as more pleasant, intelligent, cheerful than the teachers. The secondary school teachers think of the ideal teacher as more rigid, intelligent and aggressive than ATCS. 6. While the teachers would much more emphasize patriotic as the ideal teacher's characteristics, both ATCE and ATCS almost ignore it.

세라믹필터 역세정에 노즐 및 디퓨저 형상이 미치는 영향

김학빈,정재화,조형희 연세대학교 산업기술연구소 2001 논문집 Vol.33 No.1

The present study has been conducted experimentally to optimize the nozzle and diffuser shapes and diameters for dust removal system. Investigation of a dust removal system has been carried out to develop hot gas clean-up technology and to study for feasibility of clean coal technology pilot plant construction. Experiments was conducted to investigate the effects of pulse nozz1e and diffuser shapes on the air entrainments and on the pressure distribution in a particulate removal system. The main experimental parameters are different nozz1e shapes, nozzle diameters and nozzle tip positions from the diffuser upper plane. Especially, two different types of diffusers with a convergent-divergent shape and a divergent shape were tested systematically. Key words : IGCC(석탄가스화 복합발전), Ceramic Candle Filter(세라믹 캔들 필터), Reverse Cleaning(역세정). Nozz1e(노즐), Diffuser(디퓨저), Entrainment Ratio(동반류비)

TKR와 TSR·TCR간 연계추진에 관한 복합운송업체의 인식분석

김경희,이학승 한국물류학회 2004 물류학회지 Vol.14 No.3

동북아지역을 관통하는 철도운송에 대한 관심이 2000년 6월 남북정상회담을 통한 9월 경의선 복원공사 착공으로 가시화되기 시작하였다. 이들 동북아지역은 러시아, 중국, 한반도, 그리고 일본 등과 서로 밀접한 관계를 맺고 있으며, 한반도는 이들 국가들의 한 가운데 위치하고 있으면서 동북아지역의 징검다리 역할을 하고 있다. 또한 동북아지역에 대한 관심이 고조되는 가운데, 이들을 연결하는 한반도종단철도(TKR)를 비롯한 대륙횡단철도인 중국횡단철도(TCR)과 시베리아횡단철도(TSR)에 대한 연구들이 활발히 진행되고 있는 실정이다. 따라서 본연구에서는 TSR과 TCR에 대한 최근 현황 및 문제점에 대해 살펴보고,TKR의 연계추진과정을 알아보고자 한다. 그리고 현재 수도권에 집중하여 영업망을 가진 복합운송업체들의 대상으로 설문조사를 통해 대륙철도운송에 대한 인식 파악과 향후 이들 업체들의 인식 개선 방안에 대해 논의하고자 한다. This paper wishes to analyze perception of forwarder about linkage-drive between Trans Korea Railway(TKR) and Trans Siberian Railway(TSR)-Trans China Railway(TCR) that is center of continent transport railroad. This study method and detailed contents are describing in paper Chapter 4 which see, and the study analysis used SPSS 10.0. The interest about railway through the Northeast Asia Area is appeared with Gyeong-wei Line restitution construction work at September through the South-North Summit-level Conference which hold in June, 2000. This Northeast Asia Area is bounded with a close relationship each other -Russia, China, Korea Peninsula, and Japan. And Korea Peninsula is located in center of these nations, so is doing the important duties in the Northeast Asia Area. Therefore This paper is analyzed the linkage-drive process of TKR after is examined the recent present statue and problem point about TSR-TCR. And I is discussed about perception improvement plan to the object of the forwarder which engaged now in Seoul. This analysis is examined with the question investigation. I could know that forwarders are not comprehend perfectly the concept about linkage-drive of continent cross-transport railway and TKR that doing now combined transportation.

대퇴 원위부 골격근내 혈관종 1예

김희상,김학준,안경희,윤동환,유승돈 경희대학교 2003 慶熙醫學 Vol.19 No.2

연속회분식 반응조를 이용한 슬러지 소화에서 포기비율과 포기빈도가 슬러지 소화에 미치는 영향

김성홍,김희준,최영균,정태학 대한상하수도학회 2003 상하수도학회지 Vol.17 No.2

Lab-scale sequencing batch experiments were carried out to investigate the effects of aeration ratio and aeration interval on nitrogen and phosphorus transformation during the sludge digestion by intermittent aeration. The highest nitrification and denitrification efficiency could be obtained when the aeration ratio was 0.25. Nitrification inhibition caused by alkalinity deficit was not observed at the aeration ratio of 0.75, however denitrification was limited at this level of aeration ratio. Biological phosphorus accumulation was possible at the aeration ratio of 0.25, however it was not observed when the aeration ratio was over 0.5. Under the same condition of aeration ratio, aeration interval played an important role in phosphorus release. Soluble phosphorus concentration of digested sludge was about 1.5㎎/L when the aeration interval was 4 hr and that was much lower than the concentration (12-18㎎/L) when the aeration interval was 20-44 hrs.

각종 경화제 처리가 백합의 줄기 경도에 미치는 영향

김상수,원재희,안수용,김학기 강릉대학교 동해안지역연구소 2000 東海岸硏究 Vol.11 No.2

This experiment was carried out to investigate the effect of hardening materials, which were silicate complex fertilizer for the basal fertilization which contained 25percent SiO2, 45percent Ca, and 2percent Mg, Calcabon wettable powder for the foliar spray which contained 95percent calcite and 5percent surfactant, and Neo-Cal for the forliar spray which contained 17percent chelate calcium, to strengthen the stem hardness on lily(Lilium spp. 'Con Amore'). Among the treatments, the growth of the treatment of basal fertilizer on silicate complex was better than that of the other treatments. On the shear test of stem hardness, the hardness on the treatment of basal fertilizer on silicate complex was higher than that on the other treatments and the control was the lowest. And on the puncture test of stem hardness, the pattern among the treatments was He same on the shear strength. Mineral contents of leaf were higher than those of stem, and the contents of Ca and Si on the treatment of basal fertilizer on silicate complex were 1.07percent and 1.25percent, respectively, and these contents were higher than those of the other treatments.

물리적 활성화에 의한 coffee char의 제조

김학희 선문대학교 첨단과학기술연구소 1999 첨단과학기술연구소 논문집 Vol.4 No.-

하이퍼-프리젠테이션 개념은 하이퍼-미디어 개념을 확장한 것으로, 동적으로 연출되고 있는 상황에서 링크개념을 설정하여 특정시점이나 지점에서 원하는 다음 정보를 보기 위해서 비순차적으로 연출할 수 있도록 하는 연출이다. 이러한 비순차적인 연출방법인 하이퍼-프리젠테이션 개념을 도입함으로써, 자유로운 멀티미디어 연출이 가능하게 되었지만, 이러한 동기화 방법에 의해서 혼합된 여러 프레젠테이션들간에는 일관성 문제가 발생할 수 있다. 본 논문에서는 하이퍼-프리젠테이션 명시 프로그램의 일관성 검증을 위해서 Petri Net을 이용한 하이퍼-프리젠테이션 명시 방법을 제시하고, 그것을 이용한 명시 프로그램의 일관성을 검증하는 방법을 제안한다. The concept of a hyperpresentation, as an extension of a hypermedia, is the presentation in which time-varying multimedia presentations are dynamically linked together and a hyperlink's context can be changed over time at any time during a continuous presentation. While this concept provides users with a flexible and powerful tool for their descriptions of the multimedia presentation, inconsistency problems in the synchronized presentations connected by hyper links can be introduced. This paper introduces a method of describing the hyperpresentation using Petri Net and proposes a methods of detecting inconsistent hyper link loop in the hyperpresentation description.

韓國産 穀物에서의 trichothecene mycotoxin 生成에 關한 硏究

김학성,민봉희 대구대학교 기초과학연구소 1988 基礎科學硏究 Vol.5 No.-

This study was carried out to investigate the trichothecene mycotoxin productivity of Fusarium tricinctum NRRL 3229. F. tricinctum was cultured on cereal grains at temperature from 10℃ to 15℃ for 4 weeks. Toxins were extracted with solvent and purified partially by column chromatography. The amounts of T-2 toxin, HT-2 toxin, diacetoxyscirpenol and T-2 tetraol were quantitated by gas-liquid chromatography. Corn and millet had the highest productivity of trochothecene mycotoxin. The highest levels of T-2 toxin and HT-2 toxin were produced on corn and maximal yield of T-2 tetraol was obtained in cultures on millet. However, no detectable amount of diacetoxyscirpenol was observed in this experiment. Metabolism of T-2 toxins showed high differences among cereal grains. T-2 toxin was metabolized easily into HT-2 toxin in corn, polished rice, glutinous rice, and sorghum and metabolized very slowly into T-2 tetraol toxin. However, T-2 toxin in unpolished rice was metabolized into HT-2 toxin and T-2 tetraol. Also, T-2 toxin was metabolized rapidly into HT-2 toxin and T-2 tetraol in barley, wheat, millet and red bean while T-2 toxin in unpolished rice was metabolized very slowly into HT-2 toxin and T-2 tetraol.