운동경험과 자극간 시간차가 심리적 불응기에 미치는 영향

박경규(Park Gyeong-Gyu),이강헌(Lee Kang-Hun) 한국체육과학회 2003 한국체육과학회지 Vol.12 No.2

The purpose of this study was to research the effects of the athletic experience and inter-stimulus intervals on the psychological refractory period. The subjects were 16 female athletes of a girls' middle school and 16 non-athletes who volunteered this experiment. The experimental apparatus was a multi-purpose reaction timer developed by Lee Kang-hun. The primary task(task 1) was two choice-reaction and the secondary task(task 2) was pushing a button. A 2×3{athletic experience×inter stimulus interval) two-way mixed design was used for this study. Dependent variables were RT1(the reaction time for task 1), RT2(the reaction time for task 2) and inter-reaction interval. As a result of 2-way ANOVA with repeated measure and contrast test for measurement, we gained the following conclusions. 1. RT1 has no difference between the experience of athlete and inter-stimulus intervals. 2. RT2 was shorter in athletes than in non-athletes. As the inter-stimulus intervals got longer, RT2 got shorter. 3. CRT2 was shorter in athletes than in non-athletes. 4. IRI was no difference between athletes and non-athletes, but increased as the inter-stimulus intervals got longer.

초임계 이산화탄소 내에서 메틸아세테이트와 에틸아세트에트에 대한 고압 상거동

강순만,곽철,변헌수 한국공업화학회 2003 응용화학 Vol.7 No.1

Pressure-composition isotherms was obtained for the CO_2-Methyl acetate and CO_2-Ethyl acetate system at 40, 60, 80, 100 and 120℃ and the pressure a range of 15~119 bar. The solubilities measurement for CO_2-Methyl acetate and CO_2-Ethyl acetate increased with temperature at constant pressure. The CO_2-Methyl acetate and CO_2-Ethyl acetate systems exhibit type-I phase behavior with a continuous mixture critical. The experimental results obtained in this study are modeled using the Peng-Robinson equation of state. A good fit of the data are obtained with Peng-Robinson equation of state using two adjustable mixture parameter.

그래픽조직자를 적용한 학습활동이 자기 주도적 학습에 미치는 효과

강옥이,전헌선 대구대학교 2008 敎育硏究 Vol.4 No.1

This study focused on adjusting the graphic organizer not only on Korean but also on mathematics and social studies It also focused on writing how the graphic organizer is related to the self-directed learning. The purpose of this study was to investigate the self directed learning on the learning activities applying the graphic organizer. This study sampled two 3rd grade classes in an elementary school, in Gumi, to select an experimental group and comparative group. Through the pre-test of self-directed learning, the two groups are verified as equivalent groups. Classes using the graphic organizer were performed to the experimental group, while classes based on the teacher's guide of the 7th national curriculum to the comparative group. The results of this study were as follows; First, in the pre-test result, there was no difference between the experimental group and the comparative group. However, after applying the program, it helped students' openness, effectiveness, responsibility, and passion for learning. It also developed their tendency for the future, creativity, basic learning ability and problem solving literacy. Second, teaching logs were written for qualitative data to supplement the limitation of the quantitative research. The data showed the development of students' understanding and creative thinking. Ability to think and analyze improved in the process of deciding the order of accidents or choosing the suitable graphic organizer.

감마선과 Methyl Bromide 처리가 사과의 생리화학적 품질에 미치는 영향

강호진,정헌식,조덕조,변명우,최성진,최종욱,권중호 한국식품저장유통학회 ( 구 한국농산물저장유통학회 ) 2003 한국식품저장유통학회지 Vol.10 No.3

감마선(0, 0.5, 1, 2, 3 kGy) 조사와 methyl bromide(MeBr, 26 g/㎏, 4hr) 훈증 및 이들의 처리시기가 사과의 생리화학적 품질특성에 영향을 비교하여, 검역처리를 위한 ◁그림 삽입▷ (원문을 참조하세요) 감마선 조사의 응용성을 검토하였다. 감마선과 MeBr 처리에 따른 사과의 생리화학적 품질평가에서 2kGy 이상의 감마선 조사와 MeBr 훈증은 사과의 일부 생리화학적 품질특성의 변화를 촉진시키는 것으로 나타났다. 감마선과 MeBr의 처리시기별로는 수확 직후보다는 저온(0℃)에서 40일 정도 보관 후 처리한 대체적으로 품질손상이 적은 것으로 나타났다. 따라서 1kGy 이하의 감마선 조사와 지연조사는 사과 과실의 품질을 비교적 양호한 상태로 유지할 수 있어 검역처리 기술로 활용성이 있는 것으로 생각된다. 'Fuji' apples were treated by gamma irradiation (0∼3 kGy) or methyl bromide fumigation at commercial conditions (MeBr, 25 g/㎏, 4 hr) for quarantine purpose at two different treatment timing after harvest and stored under air a 0℃ for 4 months. Associated with the treatment timing of irradiation or fumigation, after 40 days of storage at 0℃ following harvest was more adequate than immediately after harvest in keeping qualities of stored apples. However, more than 2 kGy irradiation and MeBr fumigation were detrimental to physiological and chemical qualities of the fruits. These results show that less than 1 kGy irradiation at the delayed timing has a possibility to be applied as a quarantine procedure without significant changes in the quality of apples.

부비동 내시경수술 후 비음도 변화

동헌종,김선일,권중근,윤영선,강수미,추광철 대한이비인후과학회 1999 대한이비인후과학회지 두경부외과학 Vol.42 No.7

Pbo-B₂O₃계 저융점유리에 코디어라트 Filler 첨가에 따른 특성에 관한 연구

강원호,이헌식,홍유식,이경희 明知大學校 産業技術硏究所 1989 産業技術硏究所論文集 Vol.8 No.-

On sealing glass for Joining with the ceramic substrate of which the coefficient of thermal(C.T.E) expansion is ??, the properties of sealing glass due to change the content and particle size of filler were studyed. Mother glass used PbO-B₂= 3 system glass and Ceramic filler used cordierite that have low dielectric constance and C.T.E. of ?? Optimum content of filler cordierite for matching C.T.E. withe ceramic substrate is 15 ∼ 17 wt.% and MOR in maximum at 15 wt.%. Sealing glass which prepared with coarse filler in average particle size have a good flowbility, but have a poor resistance to acid and high dielectric contance. The particle size range of cordierite in optimum properties is 270 - 400 mesh.

벤젠의 파과곡선을 이용한 물질전달계수의 측정에 관한 연구

강성원,송헌택,민병훈,서성섭 한국공업화학회 2003 응용화학 Vol.7 No.1

VOCs(voatile organic compounds) have been known as the source of pollution materials of the atmosphere. VOCs related to removal technologies such as emission adsorption, absorption and condensation are developed. Recently developing VOCs removal technologies aer bio filtration membrane separation, UV oxidation Not available VOCs removal technologies for VOCs, adsorption has been widely recognized as an effective means of controlling emissions to the atmosphere and recovering recycle materials from process exhaust streams. Experimental study was carried out for benzene adsorption in an activated carbon bed. As benzene concentration increased, breakthrough time was decreased. This results due to the pressure increasing in the bed and the higher interstitial linear gas velocity. In this experiment, mass transfer coefficient was measured by numerical simulation and cure fitting for experimental data. This dynamic adsorption data and mass transfer coefficient will be for design of adsorption process.

의료기기 QI 활동 개선방안에 대한 연구

강훈희,주라형,김종순,김서확,허수진 한국의료QA학회 1998 한국의료질향상학회지 Vol.5 No.2

Background : Medical equipments take a very important role in diagnosis and treatment of disease in modern medicine and effective maintenance of the equipments is a necessory to provide a good healthcare to the public. After developing a new QC program for effective maintenance of medical equipments and practicing it for a year, we report the results of the new program. Methods : The maintenance data of 9 equipments in 8 categories including a CT Scanner were analyzed with regard to the parts responsible for most frequent failure and cause of the failure. After learning the most frequent failure part and cause of the failure, we developed a new QC program that emphasizes preventive maintenance of the most frequent failure part. We compared the number of failure per year and active rate of each equipment before, and after the adoption of the new QC program. Results : The average number of failure per year per equipment was 20.7 before and it decreased by 43% to 11.9 after adoption of the new QC program. The average active rate of the equipments was 92.6% before and it increased by 3.2% to 95.8% after adoption of the new program. Conclusions : The practice of the new QC program appears very useful as it decreased the failure rate and increased the active rate of the equipments.

製鋼粉塵의 處理

姜憲贊,黃龍吉 東亞大學校 1980 東亞論叢 Vol.17 No.2

裝鋼粉?을 還元해서 얻은 粗酸化亞鉛을 소-다灰로 90℃에서 中和處理한 結果 다음과 같은 結論을 얻었다. 粗酸化亞鉛(Crude zinc oxide, 54%Zn, 9.3%Pb, 13%Cl₂)은 鹽基性 黃酸鉛(Lead basic sulphate0形의 Pb₄O₃SO₄·2H₂O와 Pb₃O₂SO₄만 結晶質이고, 亞鉛과 鹽素의 化合物의 結晶은 確認할 수 없었다. 中和反應 時 Soda-ash使用量은 化學量論的 理論量만 必要했다. 中和反應에 의해 生成된 沈澱物은 鹽基性 炭山亞鉛(Zinc basic carbonate:4ZnO·CO₂·4H₂O)과 鹽基性 炭山鉛(Lead basic carbonate:Pb₃(CO₃)₂(OH)₂)의 形態로 되어 있었다. 또 脫鹽處理한 化合物을 180 gr/ℓ의 H₂SO₄로 浸出한 結果, 浸出液은 130 gr/ℓ Cl₂이고 浸出殘渣는 主로 黃酸鉛(PbSO₄)으로 되어 있었다. After neutralization-treating the crude zinc oxide obtained from the reduction of steel making dusts at a temperature of 90℃, the following results were obtained. 1) The crude zinc oxide (54% Zn, 9.3% Pb, 13% Cl) was found to be crystalline consisting of Pb₄O₃SO₄·2H₂O and Pb₃O₂SO₄with type of lead basic sulphate, however, a crystal of zinc and chlorine compound was not able to be confirmed. 2) The theoretical amount determined in a stoichimetric calculation ash was only required for the reaction of neutralization. 3) The precipitate formed by neutralization reaction was comprixed of zinc basic carbonate (4ZnO·CO₂·4H₂O) and lead basic carbonate (Pb₃(CO₃)₂(OH)₂). 4) It was found by leaching dechlorinated compounds with 180g/ℓof H₂SO₄that the leached solution contained 130g/ℓof Zn and 200 mg/ℓof Cl₂and that the leaching residue consisted mainly of lead sulphate(PbSO₄)

동그라미의 時學 : 정지용론

강헌국 고려대학교 한국학연구소 1997 한국학연구 Vol.9 No.-