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Na₂S 하부층을 이용한 Cu(In,Ga)Se₂ 광흡수층의 저온증착 및 Cu(In,Ga)Se₂ 박막태양전지에의 응용
신해나라(Hae Na Ra Shin),신영민(Young Min Shin),김지혜(Ji Hye Kim),윤재호(Jae Ho Yun),박병국(Byung Kook Park),안병태(Byung Tae Ahn) 한국태양광발전학회 2014 Current Photovoltaic Research Vol.2 No.1
High-efficiency in Cu(In,Ga)Se₂ (CIGS) solar cells were usually achieved on soda-lime glass substrates due to Na incorporation that reduces deep-level defects. However, this supply of sodium from sodalime glass to CIGS through Mo back electrode could be limited at low deposition temperature. Na content could be more precisely controlled by supplying Na from known amount of an outside source. For the purpose, an Na₂S layer was deposited on Mo electrode prior to CIGS film deposition and supplied to CIGS during CIGS film. With the Na₂S underlayer a more uniform component distribution was possible at 350°C and efficiency was improved compared to the cell without Na₂S layer. With more precise control of bulk and surface component profile, CIGS film can be deposited at low temperature and could be useful for flexible CIGS solar cells.
Na<sub>2</sub>S 하부층을 이용한 Cu(In,Ga)Se<sub>2</sub> 광흡수층의 저온증착 및 Cu(In,Ga)Se<sub>2</sub> 박막태양전지에의 응용
신해나라,신영민,김지혜,윤재호,박병국,안병태,Shin, Hae Na Ra,Shin, Young Min,Kim, Ji Hye,Yun, Jae Ho,Park, Byung Kook,Ahn, Byung Tae 한국태양광발전학회 2014 Current Photovoltaic Research Vol.2 No.1
High-efficiency in $Cu(In,Ga)Se_2$ (CIGS) solar cells were usually achieved on soda-lime glass substrates due to Na incorporation that reduces deep-level defects. However, this supply of sodium from sodalime glass to CIGS through Mo back electrode could be limited at low deposition temperature. Na content could be more precisely controlled by supplying Na from known amount of an outside source. For the purpose, an $Na_2S$ layer was deposited on Mo electrode prior to CIGS film deposition and supplied to CIGS during CIGS film. With the $Na_2S$ underlayer a more uniform component distribution was possible at $350^{\circ}C$ and efficiency was improved compared to the cell without $Na_2S$ layer. With more precise control of bulk and surface component profile, CIGS film can be deposited at low temperature and could be useful for flexible CIGS solar cells.
Tae‐Kyun Hong,Kym‐Na‐Ra Hwang,Jun‐Ran Kim,Young‐Joon Ahn 한국응용곤충학회 2009 한국응용곤충학회 학술대회논문집 Vol.2009 No.10
The toxicity of Kaempferia galanga rhizome materials and constituents against Meloidogyne incognita second‐stage juveniles (J2) and eggs were examined. The active principles of K. galanga rhizome were identified as the phenylpropanoids ethyl (E)‐cinnamate (EC, 1) and ethyl (E)‐p‐methoxycinnamate (EMC, 2) by spectroscopic analysis. Results were compared with those of carbofuran, fosthiazate, and metam‐sodium. In direct‐contact mortality bioassay, EC (LC50, 0.037 mg/ml) was the most toxic constituent, followed by EMC (0.041 mg/ml). EC was more effective than carbofuran (LC50, 0.092 mg/ml) but less active than fosthiazate (0.002 mg/ml). EC, egg hatch was inhibited 100, 93, and 87% at 125, 62.5, and 31.25 μg/ml, respectively. EMC caused 100, 81, and 75% inhibition of egg hatch at 125, 62.5, and 31.25 μg/ml, respectively. The inhibition of two phenylpropanoids were similar or more inhibition to that of either carbofuran or metam‐sodium but was lower than that of fosthiazate. In contact + fumigant mortality bioassay, EC and EMC treatments resulted in 86 and c 73% mortality at 0.5 and 0.125 mg/g soil, respectively. The lethality of these phenylpropanoids was almost similar to that of either carbofuran or metam‐sodium but was lower than that of fosthiazate. In vapor‐phase mortality bioassay, EC and EMC were more effective in closed container than open containers, indicating that the mode of delivery of these compounds was, in part, a result of vapor action. K. galanga rhizome‐derived materials, merit further study as potential nematicides and hatching inhibitors for the control of M. incognita populations.
인위적 근피로 유발후 단축성과 신장성 근수축 운동시 근 토크의 변화
강영석,안창영,윤성원,나윤수 서울여자대학교 자연과학연구소 1995 자연과학연구논문집 Vol.6 No.-
The purpose of this study was to investigate the change of the peak torque, average power and total work of muscle function in the fatigue during eccentric(ECC) and concentric contraction (Con). Subjects were seven (7) adults man, who were paticipated in the ECC and CON experiments. Their gastronemus muscle were measured by CYBEX(Lurnax Co.) 6000system. Muscle fatigue was induced by 50 repetitionplantar flexion at 180 /sec load speed. In pre and post test, peak, average power and total work were analized when subjects were tested plantar flexion at 180/sec load speed. the summary of this results is as following : 1. Peak torque in the ECC were significantly higher than that of the CON. 2. Average power and total work of the Eccentric contraction appeared a higher than that of the Concentric contraction significantly. As a results. peak torque, average power and total workin the ECC was significantly higher than that of the CON throughout the experiments. In this fact, Mechanical efficiency in the ECC will expect to be higher than that of the CON.
張仁鉉,安那令 대구효성가톨릭대학교 응용과학연구소 1994 응용과학연구논문집 Vol.3 No.-
Figure skating의 과학적인 훈련처방을 위한 자료제공을 목적으로 여자 Figure skating 선수 10명을 대상으로 Figure skating의 Compulsory figure, Jump, Spin, Step, Forward skating, Crossing, Free skating등 7가지 형태의 운동을 실행시간의 장·단시간에 따라 구분하였고, 운동수행을 통한 심박수의 변화에 따른 운동강도를 분석하였으며 그 결과는 다음과 같다. 1. 단시간 운동형태에서 Compulsory figure는 운동개시 55초경에 HRmax의 73.04%(Peak HR 140.10beats)강도였고, Jump는 15초경에 HRmax의 81.91%(Peak HR 158.70beats)강도였다. 또 Spin은 운동개시 15초경에 HRmax의 79.37%(Peak HR 152.60beats)강도였고 Step은 15초경에 HRmax의 76.48%(Peak HR 146.60beats)강도였다. 또한 Jump와 Spin은 안정시에 비해 유의(p<0.05)한 증가를 나타냈으며 심폐기능의 유지 증진을 위한 수준의 운동강도이다. 2. 장시간 운동형태에서 Forward skating은 운동개시 2분경에 HRmax의 96.52%(Peak HR 186.50beats)강도였고 Crossing은 2분 20초경에 HRmax의 96.86%(Peak HR 186.10beats)강도였다. Free skating은 운동개시 3분경에 HRmax의 99.48%(Peak HR 191.40beats)로 최고 높은 강도였으며, 모두 안정시에 비해 유의(p<0.05)한 증가를 나타냈고, 3-5분 이상 지속할 수 없는 최대의 운동강도이다. 10 members of women Figure skaters were objects of this research. The above players were let perform seven kind of exercises such as Compulsory figure, Jump, Spin, Step, Forward skating, Crossing and Free skating. During the performance, the player's heart rates were measured by the hour. The result of the investigation how the intensity in each kind of exercise was revealed in accordance with the measured heart rates were as following. 1. In the short duration of the exercise performance, Jump and Spin revealed 81.91%(158.70 beats) and 79.37%(152.60 beats) of HRmax respectively in 15 seconds after the begin-ning of the exercises. 2. In the long duration, Free skating showed 99.48%(191.40 beats) of HRmax in 3 minutes after the beginning, and Crossing showed 96.86%(186.10 beats) of HRmax in 2 minutes and 20 seconds after the performance.
신라검무 및 동일강도의 트레드밀 운동시 심박수, RPE 및 혈중 젖산농도 변화의 비교
오향란,안나영,김기진 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6
This study was performed the comparison of physiological function between a sword dance and treadmill running, For the positive factors of sword dance through physical activity and music component on the psycho-hysiological change. Subjects were consisted of 20-aged 16 female sword dancer of 2 groups, as skillful dancer group(n=B) and novice group(n=B), The results were as follow: In graded maximal testing, VO₂max, anaerobic threshold, and recovery capacity after maximal exercise in skillful group showed a higher than novice group. Change of heart rate during a sword dancing is almost similar level to optimal intensity in aerobic exercise program, so sword dance could be suggested an effective exercise program Physiological stimulus to cardiopulmonary function is different response as the different career of sword dance, because novice group showed a significant(p<.05) higher heart rate in sword dance than treadmill running. Blood lactate concentration showed a similar response between sword dancing and treadmill running in both 2 groups. Novice group showed a higher RPE in sword dancing than treadmill running, but skillful group showed a lower RPE in sword dancing than treadmill running. These results mean that the acquainted level of sword dance affected to the psychological response during sword dancing In these result, hypothesis of the similar blood lactate change between sword dancing and treadmill running could be accepted, but RPE is different response as the different career of sword dance.