Failure Diagnosis Method of Photovoltaic Generator Using Support Vector Machine

Kyeong‑Hee Cho,Hyung‑Chul Jo,Eung‑sang Kim,Hyang‑A. Park,박준호 대한전기학회 2020 Journal of Electrical Engineering & Technology Vol.15 No.4

The capacity of photovoltaic (PV) generators can increase owing to the 4030 policy of the Government of South Korea.. In addition, there has been signifcant interest in developing a technology for the maintenance of PV generators owing to an increase in the number of outdated PV generators. This paper describes a failure diagnosis method that uses operational data for power generation and solar radiation of PV generators. The measured data stored since four years in an operational 50-kW PV generator that was installed in 2014, were analyzed. The proposed failure diagnosis logic uses support vector machine classifcation as a failure diagnosis method that can classify normal and failure data. The failure data were processed to be used as the fault diagnosis logic for solar power generators. A new 50-kW PV generator, which contained no fault data, was used for a case study in this paper. Fault data were generated and the operation data of the PV generators were diagnosed by applying the proposed method. In addition, the accuracy was calculated and the results were analyzed.

경정맥 신우조영술중 파열된 자궁의 악성혼합뮬러리안 종양 1예

조희정,김태희,김정식,이해혁,남계현,김희경 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

The Malignant Mixed Mullerian Tumor(MMMT) of uterus, a biphasic malignant tumor composed of both epithelial and stromal component, is rare but very aggressive and generally lethal. Most of these tumors arise spontaneously in the sixth to eighth decade of life, but certain proportions are known to be occurred in women, who had received pelvic irradiation. But, the precise role of irradiation in the genesis of uterine neoplasia remains uncertain. We experienced a case of MMMT of uterus which ruptured during intravenous pyelogram and she had received pelvic irradiation 40years ago.

유아의 정서지능과 스트레스

유경숙(Yoo Kyeong Sook),정덕희(Chung Duk Hee) 한국어린이미디어학회 2007 어린이미디어연구 Vol.6 No.2

본 연구는 유아의 정서지능과 스트레스의 관계를 알아보는데 목적이 있다. 이에 따라 성별에 따른 정서지능과 스트레스의 차이 및 정서지능과 스트레스의 관계를 살펴보았으며, 정서지능이 높은 집단과 낮은 집단 간의 유아가 스트레스에서 차이가 있는지를 알아보았다. 연구결과 성별에 따른 유아의 정서지능 및 스트레스의 일반적 경향에서 정서지능 중 자기조절능력에서 남ㆍ여 간에 유의한 차이가 발견되었으나 스트레스에서는 차이가 발견되지 않았다. 둘째, 성별에 따른 유아의 정서지능과 스트레스와의 관계를 살펴본 결과 남녀유아의 정서지능과 스트레스 간에는 부적상관관계가 있는 것으로 나타났다. 정서지능 하위요인 중에서 자기인식?표현능력, 타인인식, 타인조절/대인관계, 자기조절에서 부적상관을 나타내고 있다. 셋째, 유아의 정서수준에 따른 스트레스 수준을 분석한 결과 정서지능이 높은 집단이 낮은 집단에 비해 스트레스 수준이 낮은 것으로 밝혀졌다. The purpose of this study was to examine young children's emotional intelligence and stress. The subjects for this study were 120 young children's of 4-5years in Kyeongkido. Lee's questionnaires(1997) on Young Children's emotional intelligence and Yum Hyun Kyeong's questionnaires(1998) on young children's stress were used. The results were as follows : (1) According to sex, there were significant differences in young children's emotional . The girls higher self regulation than boys. There was no significant difference in stress. (2) There were significant negative correlations between young children's emotional intelligence and stress. (3) There were significant differences between the two(higher and lower). groups ,a comparison stress according to level of emotional intelligence in young children. The Young children who got higher emotion intelligence perceive lower stress.

코스튬플레이어들의 라이프스타일과 행동특성에 관한 연구

정혜영,정희경,서용한,오희선,이명희 한국의류산업학회 2004 한국의류산업학회지 Vol.6 No.1

Costume plays have been of interest to young people in the recent years. The much increased interest in costume plays has prompted many researchers to verify the behavior characteristics of costume players Despite the importance of the costume play, there has been no systematic study of it. The purpose of this study is to demonstrate the influence of life style on behavior characteristics of the costume player. The subjects of this study were members of the web sits(wwwcosmakercom). A total of 155 subjects responded to the questionnaires and the 143 responses were used for further data analysis. The data was analyzed by factor analysis, cluster analysis, and one-way ANOVA. These were the results of the stud: First, costume player groups are classified into three sub-dimensions: other people-oriented, show-off oriented, and exclusive ego oriented. Second, the behavior characteristics of costume player are significantly shown among those groups.

볼링후 발생한 전골간신경 증후군-증례 보고-

김혜경,이희숙,박준명,정광익,박동식 大韓再活醫學會 1998 Annals of Rehabilitation Medicine Vol.22 No.4

1920년대 盧隱 小說과 페미니즘

趙璟姬 中國語文硏究會 1998 中國語文論叢 Vol.14 No.-

麥酒麥의 (1-3,1-4)-β-glucanase 遺傳子의 構造와 發現 樣狀

유남희,윤성중,최경구,김제환,박충웅 全北大學校 基礎科學硏究所 1994 基礎科學 Vol.16 No.-

禾穀類 種子 發芽時 호분층과 ??組織의 細胞壁에 多量 含有되어 있는 (1-3, 1-4)-β-glucan을 分解하여 種子의 發芽에 必要한 加水分解酵素의 分泌 및 擴散 浸透를 돕는다. 本 硏究에서는 國內 麥酒麥의 (1-3, 1-4)-β-glucanase 遺傳子의 構造 및 發現 에 대한 基礎 情報를 얻기 위하여 生化學的 및 分子生物學的 方法을 利用하여 發芽種子 및 어린 잎에서의 酵素活性과 遺傳子의 發芽樣狀 그리고 遺傳子의 構造 等을 調査하였다. 麥酒麥 發芽種子中 (1-3, 1-4)-β-glucanase 活性은 發芽 7日째에 제일 높았다. (1-3, 1-4)-β-glucanase의 活性測定에 使用한 (1-3, 1-4)-β-glucan이 (1-4)-β-glucanase에 의해 分解될 可能性이 있으므로 (1-4)-β-glucanase의 活性도 測定하였는데 (1-4)-β-glucanase의 活性이 매우 낮게 나타나서(1-4)-β-glucanase가 (1-3, 1-4)-β-glucanase을 分解하여 (1-3, 1-4)-β-glucanse의 活性에 影響을 미쳤을 可能性이 매우 낮았다. 麥酒麥의 (1-3, 1-4)-β-glucanase 遺傳子 構造를 PCR을 利用하여 調査하였던바 國內 麥酒麥의 (1-3, 1-4)-β-glucanase 遺傳子 構造는 外國의 다른 品種들이나 귀리의 遺傳子 構造와 대단히 類似하였다. 酵素活性 測定과 귀리의 (1-3, 1-4)-β-glucanase cDNA clone을 ?識子로 利用한 보리의 mRNA 分析에 의해서 發芽傳子 및 어린 잎에서 (1-3, 1-4)-β-glucanase가 種子發芽 以外에도 生育中인 組織細胞의 伸張과 發育 및 β-glucan 再利用에 泌要한 β-glucan 代謝에 關與하고 있음을 示唆하는 結果라 생각된다. (1-3, 1-4)-β-glucans hydrolysis of cell wall (1-3, 1-4)-β-glucanas accompanies degradation of endosperm cell walls during cereal seed germination. To investigate (1-3, 1-4)-β-glucanase expression pattern in Korean malting barley, (1-3, 1-4)-β-glucanase activity, gene structure and mRNA expression patterns werre examined. (1-3, 1-4)-β-glucanase activity increased as germination proceeded and the highest enzyme activity was detected in seeds germinated for 7 days. Because (1-4)-β-glucanase have a potential to degrade (1-3, 1-4)-β-glucans, (1-4)-β-glucanase activity was also determined. (1-4)-β-glucanase activity, however, was very low minimizing possibility of (1-4)-β-glucanase action on (1-3, 1-4)-β-glucan substrate. PCR technique was employed to investigate (1-3, 1-4)-β-glucanase gene structure. The amplification product of the expected size from the targeted sites of Dusan #29 indicated that (1-3, 1-4)-β-glucanase systems were conserved in different barley varieties and even in oats. (1-3, 1-4)-β-glucanase activity and mRNAs were detected in young leaves as well as in germinating seeds. This may suggest that (1-3, 1-4)-β-glucanase are also involved in β-glucan metabolism required for cell elongation and β-glucan reutilization during leaf growth and developmetn.

옛이야기 속 인물의 옷이 삶에 미치는 상징적 의미 연구

장경희 국제뇌교육종합대학원대학교 뇌교육연구소 2021 뇌교육연구 Vol.28 No.-

In this study, the origin and function of clothes, and the meaning of the symbolism of clothes in folk tales were investigated. Clothing has played a role in protecting people and expressing psychological stability and affiliation. In the early days, they wore animal fur as it was, then gradually processed it, spun yarn, and made cloth for In fairy tales, the unconscious, clothes. meeting clothes the and enter meant integrating with persona and anima animus, division and boundary, and protection. The characters in the folk tales went down to the unconscious through an effort to recover the clothes they lost, and sometimes they took off the overlaid persona or built the necessary persona. The clothes distinguish the outside from the self and the shadows, so that the characters in the folk tales meet the anima animus become and individuation. The results of this study shows that the symbolic meaning of the clothes in the folk tales accompanies the character's psychological journey and acts as a helper so that the character can live their life well. 본 연구는 옛이야기 속에 나타난 옷의 상징성이 가지는 의미를 알아보았다. 옷은 사 람들을 보호하고, 심리적 안정감이나 소속 지위 등을 표현하는 역할을 해 왔다. 초기에 는 동물의 털가죽을 그대로 사용해 입다가 점점 가공하고 실을 잣고 옷감을 만들어 옷 을 해 입었다. 옛이야기 속에서 옷은 무의식으로 내려감, 페르소나, 아니마⦁아니무스와 의 만남과 통합, 구분과 경계, 보호를 의미하였다. 옛이야기 속 인물은 잃어버렸던 옷을 되찾는 노력을 통해 무의식으로의 내려가기도 하고, 덧씌워진 페르소나를 벗겨 내거나 필요한 페르소나를 구축하기도 하였다. 옷은 외부와 자신을 구분 짓고 그림자를 구분하 여 이야기 속의 인물이 아니마⦁아니무스를 만나 개성화 과정을 가는 것을 표현하였다. 연구 결과 옛이야기 속의 옷의 상징적 의미는 인물의 심리적 여정에 동반하여 인물이 자신의 삶을 잘 살아갈 수 있도록 조력자 같은 역할을 하고 있다는 것을 알 수 있었다.

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.

위암환자 전산화단층촬영시 경구조영제로서 물의 유용성에 관한 연구 : Usefulness of Water as an Oral Contrast Agent

정경원,김충현,박청희 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.1

Computed tomography is valuable for direct visualization of changes of gastric wall and staging of gastric tumor. Gastric distension is essential for the evaluation of gastric wall. Computed tomography of the gastric wall after sequential ingestion of normal saline to 1000cc, followed by rapid intravenous injection of contrast medium, was performed in 36 patients with known gastric tumors. Three patients were excluded due to incomplete gastric distenstion and the lesion was not detected. Thirtythree patient was analysed preoperatively; the changes of wall were analysed in all patients and CT staging is compared with that of 19 cases who underwent surgery. The results were as follows: 1. All cases are adenocarcinomas. 2. Thickening of gastric wall is detected in all cases and the ulceration within the thickened wall is detected only in five cases among the 25 cases of Borrmann type Ⅱ and Ⅲ. 3. Absence or presence of perigastric fat infiltration is correctly diagnosed in 15 cases among the 19 cases who underwent surgery 4. Lymph node metastasis, is correctly diagnosed in nine cases among the 19 cases 5. Pancreatic metastasis is correctly diagnosed in all cases who General acceptance and tolerance of water as a gastric contrast medium was good in all patients, and water made excellent negative contrast with gastric wall, and there was no side effects.