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      • KCI등재

        딥러닝 기반의 동풍 예측 및 강수 분류

        정광희,이성준,서기성 대한전기학회 2020 전기학회논문지 Vol.69 No.9

        Understanding the characteristics of the easterly-related weather phenomena in the eastern coast in Korean Peninsula is very important to analyze abnormal atmospheric phenomena such as heavy rain, heavy snow, and hot-dry wind. As data science techniques have steadily improved, a data driven prediction models are becoming more powerful in the quantitative forecasting weather. In this paper, we apply the LSTM based deep learning method to predict the velocity of the easterly wind around the Korean peninsula. Bi-directional data shape of input data and cascaded LSTM structure are proposed. The modified LSTM based method for prediction of easterly wind is experimented in years form 2013 to 2017 for the Korean Peninsula and East Sea using ERA5 data. Experiments of precipitation classification for Gangwon and Gyeongsang area are executed in years form 2008 to 2017

      • 암환자의 건강지각과 성격 및 가족지지에 관한 연구

        정광희,최금봉 朝鮮大學校 附設 醫學硏究所 1987 The Medical Journal of Chosun University Vol.12 No.1

        This study was undertaken in order to investigate main factors that influence upon the health percept of cancer patients by analysing the relationship between their health perception, personality and the family support for them. The subject of this study were 54 cancer patients and other 54 patients who also had operations with other diseases on their second or third post operation day at the 3 general hospitals located in Kwang Ju City. The instruments used for study were health perception questionaire developed by Ware to measure health perception, health locus of control developed by Wallston and the others to measures person ality, and the scale developed by rhe researcher with utilizing the references to measure family support. Data collection was done from August 21 st to September 5th, 1986, by means of quostionare and interview. The analysis of data was done by use of frequency, X²-test, t,-test, Anova, and Pearson Correlation Coefficient through S.P.S.S program. The results of this study were as follows : 1. There were no differences in the level of health perception between cancer patient group and general surgery patient group. 2. Cancer patient group had higher level of external locus of control than general surgery patient group. 3. There were no significant differences in the level of perception of family support between cancer patient group and general surgery patient group. 4. There were no correlation between the personality and that of the health perception. 5. It was found that the more family support is the higher the degree of health perception. 6. There were significant differences in the degree of health perception between having medical insurance, the Experience of operation, and of hospitalization and having no.

      • KCI등재

        [Li,La]TiO<sub>3</sub> 코팅용액의 pH에 따른 Li[Ni<sub>0.35</sub>Co<sub>0.3</sub>Mn<sub>0.35</sub>]O<sub>2</sub> 양극의 전기화학적 특성

        정광희,김석범,박용준,Jung, Kwang-Hee,Kim, Seuk-Buom,Park, Yong-Joon 한국전기화학회 2011 한국전기화학회지 Vol.14 No.2

        [Li,La]$TiO_3$ 코팅용액의 pH를 조절하여 이에 따른 코팅된 $Li[Ni_{0.35}Co_{0.3}Mn_{0.35}]O_2$ 양극활물질의 전기화학적 특성을 관찰하였다. 산화물인 양극분말은 접촉하고 있는 용액의 pH에 따라 표면 전하를 띄게 되는데 양이온인 코팅물질을 균일하게 반응시키기 위해서는 적절한 pH 조절을 통해 양극분말 표면을 음전하 상태로 조절해 주는 것이 필요하다. SEM, TEM 분석을 통해 코팅용액의 pH에 따른 코팅층의 형상변화를 관찰하였으며 다양한 전류밀도로 충전과 방전을 실시하여 코팅용액의 pH에 따른 방전용량, 사이클 특성, 고율특성을 분석하였다. 임피던스잴 cyclic voltammogram 측정을 통해 코팅용액의 pH에 따른 코팅층의 내부저항 변화를 관찰하였으며 이것을 전기화학적 특성과 연관됨을 확인하였다. The surface of $Li[Ni_{0.35}Co_{0.3}Mn_{0.35}]O_2$ cathode was modified by $[Li,La]TiO_3$ coating using pH controlled coating solution. At low pH values (acidic solution), cathode powders, which is oxides, have a positive surface charge, whereas, they have a negative surface charge at high pH values. As a result, their charge could affect the formation of the coating layer on the surface of cathode powder. To determine the optimal pH value, the surface coating of the pristine powder was carried out at various pH values of the coating solution. The surface morphology of coated samples was characterization by SEM and TEM analyses. Impedance analysis and cyclic voltammogram presented that internal resistance of the cell was dependent upon the pH of coating solution.

      • 泗溟堂長衫에 대한 硏究

        鄭光熙 동국대학교 경주대학 1983 論文集 Vol.2 No.-

        Samyeongdang Jangsam, kept in Pyochung Temple in Milyang is a very valuable, 400-year old remain. The study of this Jangsam shows little difference when compared with the modern Jangsam except for the length of a sleeve. The Buddhist monk's robe like Jangsam was called Jigcheol in China. It was at first seperated to upper garment (Jeogori) and the skirt (chima), later on it became one. It is said, therefore, as the monk's robe during Gory대 dynasty there were Pyeonsam and Sang but during Yi dynasty there was only Jangsam. However we hardly presume how such a mode has been changed.

      • KCI등재
      • 임종환자 간호를 위한 학생들의 죽음에 대한 태도 조사

        정광희,이강오 朝鮮大學校 醫學硏究所 1982 The Medical Journal of Chosun University Vol.7 No.-

        This study was conducted to investigate the knowledge about death and the attitude toward it for the better effective education of the Dying Patient Care with the sample of 65 freshman, 50 sophomore, and 41 Junior nursing students enrolled the Department of Nursing, Chosun University. The following results were obtained. 1. In regard to religion : CHRISTIAN showed the highest rate as 38.5%, NO RELIGION as 38.5%, CATHOLIC as 14.7%, and BUDDHIST as 8.3%. 2. In regard to the belief of next world : Affirmative answer was 63.5% of the students and negative answer 36.5%. 3. In regard to the philosophy including clear conceptions about life and death : HAVE NOT IT NECESSARILY showed the highest rate as 43.6%, followed by 37.2% in HAVE IT FIRMLY, and HAVE NOT IT as 11.5%. 4. In regard to the feelings related to death : NATURAL PHENOMENON showed the highest rate as 37.8%, VANITY as 15.4%, ANXIETY as 9.6%, followed by 7.7% in ETERNAL REFUGE, and CUT OFF LIFE as 5.8%. 5. In regard to the question that have ever talked about death with others : Affirmative answer was 70% of the students, and negative answer 30%. 6. In regard to the question that have ever thought about your own death:DO IT SOMETIMES showed the highest rate as 75%, followed by 12.2% in DO IT FREQUENTLY, and DON'T IT as 10.9%. 7. In regard to the question how your own death will occur ; CAN NOT FORESEE IT showed the highest rate as 47.4%, followed by 28.8% in OLD AGE, and ACCIDENT as 6.4%. 8. In regard to the question that you want to know it when there is no hope of the recovery of your own life. : WANT TO KNOW IT showed the highest rate as 64.7%, followed by 21.2% in AS A CIRCUMSTANCES, and DON'T WANT TO KNOW IT as 14.1%. 9. In regard to the attitude when a Dying Patient wants to talk about death : HEAR IT WITH ATTENTIVE ATTIUDE showed the highest rate as 61.5%, followed by 28.2% in ENCOURAGE NOT TO GIVE UP HOPE, and EVADE AS POSSIBLE AND CHANGE TO THE ANOTHER TOPIC OF CONVERSATION as 7.1%. 10. In regard to the next important plan among the care plans of a Dying Patient : SPEND ENOUGH TIME WITH A PATIENT showed the highest rate as 43.6%, followed by 28.2% in ARRANGE TO MEET WITH A CLERGYMAN TO GIVE RELIGIOUS ASSISTANCE, and MAINTAIN THE MOST CONVENIENT PHYSICAL CONDITION as 26.3%. 11. In regard to how to do if you take care of a Dying Patient : WANT TO HELP PATIENT showed the highest rate as 76.3%, flolowed by 18.6% in WANT TO HELP PATIENT BUT DON'T KNOW WHAT TO DO CONFUSEDLY, and WANT TO EVADE AS POSSIBLE as 5.1%. 12. In regard to the question informing a Dying Patient the fact that he will die : AS A CIRCUMSTANCES showed the highest rate as 60.9%, followed by 19.9% in HAVE TO INFORM IT, and HAVE TO CONCEAL IT as 10.3%. 13. In regard to how to do when a Dying Patient himself know he is hopeless. HELP TO ADMIT DEATH AND TO ARRANGE THE REMAINING LIFE showed the highest rate as 79.5%, followed by 18.6% in DENT THE FACT AND ENCOURAGE TO HAVE NEW HOPE, and DON'T KNOW HOW TO DO as 1.9%.

      • 감호학생 교육을 위한 기초조사연구

        정광희,이강오 조선대학교 1981 The Medical Journal of Chosun University Vol.6 No.-

        On basis of October, 1980, Present time, the survey was conducted with 166 nursin students in the Department of Nursing, Medical College, Chosun University about general characters, environment before entering, the degree of adaptation and satisfaction for nursing science, the purpose of nursing education and perception for nursing, and the degree of adaptation and satisfaction for school life. I have come to conclusion as follow. 1. Among all respondents, 166 members, 22years(22%) was the most high and average age of all grades was 21. Religion was ranked with "No Religion(43%)", "Christian(29%)", "Catholic(19%)" and 64 percent of them had lived in their own houses. The region of high school of graduation was the most high in the city of Kwang Ju(77%). 2. The days of high school at the time of making choice about entering the Department of Nursing(36%), obscure perception about nursing at the time of making choice(28%), second prefrence in selective motives(33%), and parents as a counselor at the time of making choice(32%) was showed. 3. "Relatively being satisfacted" about the degree of satisfaction after entering(35%,), the service of society with the reason of satisfaction(42%), and bad social recognization with the reason of unsatisfaction(48%) w&s showed. 4. The job called for by society and utilized for domestic life in understanding of nursing(33% respectively), cultivated nurse for the purpose of nursing education(38%), the se giving others good impression with love and kindness in the students image of nursing(39%), and the responsibility in the desirable natural disposition(29%) was showed. 5. "Usually" in the degree of satisfaction about overall school life(40%), deficient educational facilities witb the reason of unsatisfaction(27%), the sense of doubt about nursing ence in the primary cause obstructing schooling(23%), "Usually" in the degree of satisfaction about faculty(48%), deficient insurance of faculty with the reason of unsatisfaction(46%), hobby life in the way of better utilization of leisure time(42%), and personal ation in the big problems being faced now(27%) was showed. 6. In the matter of the relation with other sex, "Need(73%)" "Want to acquaint with many people if the opportunity will be given"(56%) was showed. The meeting in the motive to meet opposite sex(32%) and the day of freshman in the st relation with other sex(57%) was showed. 7. The degree of physical health was mostly strong but weak partly(9%) and insomnia s showed in mental health(11%). 8. "Only before marriage(26%)", "the desire of employment for the field of clinical nursing(36.%) in the length of service desirable after graduation was showed.

      • Revisiting Cassie equation: Contact angle measurements on smooth and chemically heterogeneous surfaces

        정광희,이동욱 한국공업화학회 2018 한국공업화학회 연구논문 초록집 Vol.2018 No.0

        The Cassie equation has been used for many decades, but the limitation of the Cassie equation is still being investigated via various experimental and theoretical studies. Here we measured water contact angles for flat, chemically heterogeneous surfaces (silica surfaces with hexagonal array circular patches of 20 nm thick trichloro- (1H, 1H, 2H, 2H-perfluorooctyl) silane layers). Various patch size and spacing has been utilized to investigate the static contact angle changes due to chemical heterogeneity. We found that (i) the deviation between the measured contact angles and the Cassie equation increase with the patch diameter, (ii) the standard deviation of measured contact angles increase with the patch diameter, (iii) as the patch diameter increases, the water droplet no longer maintains truncated sphere structure and become deformed, (iv) when the ratio of the droplet base diameter and patch diameter is greater than ~0.17, contact angles deviate significantly from the Cassie equation.

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