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과부하 전류로 인한 케이블 소손방지를 위한 저압 배선의 설계방법
연기용,김동규,이현명,김재언 대한전기학회 2020 전기학회논문지 Vol.69 No.8
The Korea Electro-Technical Code (KEC) was enacted in March 2018 to meet international standards and develop the country's power industry, and will be implemented in January 2021. In KEC, the protection coordination between the cable and protection devices was to be in accordance with KS C IEC 60364. In this paper, I propose the design of protection coordination between cable and protection devices applying KS C IEC 60364 to draw out the problems of the design method based on the Technical Regulation in Electricity Business Act. In addition, the application method of demand factor for economical low-voltage wiring design was proposed. For the verification of the proposed design method, the design of low-voltage wiring in a certain apartment complex was modeled, and the analysis applied with the Technical Regulation in Electricity Business Act and KS C IEC 60364 was performed. Finally, it is expected that this paper is utilized as a reference for designing economical and reasonable low-voltage wiring.
구리 박막의 전기적 특성 개선을 위한 유기첨가제의 조성 제어
송유진,이연승,연기수 한밭대학교 2009 한밭대학교 논문집 Vol.7 No.1
반도체 소자의 소형화에 따라 낮은 비저항을 가진 구리가 ULSI의 금속배선으로 사용되고 있다. 구리선의 비저항은 RC delay와 집적회로의 신호전달에 영향을 미치게 된다. 본 논문에서는 전기도금된 구 리박막의 비저항에 대해 유기첨가제 조성이 미치는 영향을 조사하였다 4탐침 표면저항측정기로 비저항을 평가하였고, XRD (X-ray Diffraction), AFM (Atomic Force Microscope), FE-SEM (Field Emission Scanning Electron Microscope), XPS (X-ray Photoelectron Spectroscopy) 로 박막의 특성을 조사하였다 실험한 결과, 유기첨가제의 조성이 전기도금으로 증착된 낮은 비저항을 갖는 구리박막의 형성에 있어 중요 한 역할을 하는 것을 확인하였다
신혜숙,박혜자,박명희,연기순,김훈교,문한림,송혜향 가톨릭대학교 가톨릭대학교 간호대학 호스피스 교육연구소 1999 호스피스논집 Vol.4 No.-
The purpose of this study was to assess the changes in quality of life wish elapse of chemotherapy in head and neck cancer patients. This study was a longitudinal descriptive design. The subjects were 9 patients who had stage III and stage IV head and neck cancer and received neoadjuvant cisplatin and 5-fluorouracil chemotherapy. Linear Analogue Self Assessment Scale (LASA) of the QOL which it includes eleven items(seven physical items appetite, nausea/vomiting, physical well-being, vigor activity, energy, sleepiness, fatigue and four mental items anger, anxiety, depression & vital power) were used to assess the quality of life eleven times(once in the prechemotherapy period and from the 1st day to 10th day postchemotherapy). The means of scores at each time were analyzed by repealed measures of ANOVA and Bonferroni multiple comparison method. The results are as follows : 1. The degree of appetites decreased significantly on the period between third and sixth day compared with that of appetites on the prechemotherapy day (p<0.001). 2. The degree of physical well-being decreased significantly on the period between first and fifth day compared with that of physical well-being on the prechemotherapy day (p<0.001). 3. The degree of nausea/vomiting decreased significantly on the period between first and fourth day compared with that of appetites on the prechemotherapy day (p<0.001). 4. The degree of anger decreased significantly on the second, fourth, eighth and ninth day after chemotherapy compared with that of anger on the prechemotherapy day(p<0.001). 5. The degree of fatigue decreased significantly on the fourth day compared with that of fatigue on the prechemotherapy day(p<0.001). 6. The increment of nausea/vomiting and poor appetite started on the 2.89th day and 3.67th day after chemotherapy, respectively. 7. The increment of sleepiness started on the 2.56th day after chemotherapy. 8. The increment of depression and anxiety started on the 2.33th day and 3.33th day after chemotherapy, respectively. 9. The lowest degrees of nausea/vomiting and poor appetite were 37.00±17.9 % and 28.64±14.94 % after chemotherapy compared with those of nausea/vomiting and poor appetite on the prechemotherapy day, respectively. 10. The lowest degrees of anger and vigor activity were 48.12±28.3 % and 39.83±24.9 % after chemotherapy compared with those of anger and vigor activity on the prechemotherapy day, respectively. 11. The recovery rates of eight items of quality of life (appetite, vigor activity, energy, fatigue, anger, anxiety, depression & vital power) were shown to reach a peak on the tenth day after chemotherapy and be reached to almost 84 % compared with those of quality of life on the prechemotherapy day. 12. The recovery rates of physical well-being and sleepiness were shown to reach to 67.75 % and 95.68 % on the 10th day after chemotherapy compared with those of physical well-belong and sleepiness on the prechemotherapy day. 13. The recovery rates of seven physical items were faster than those of four mental items on the 10th day after chemotherapy. In conclusion, it is suggested that nursing care strategies to improve the quality of life in patients with chemotherapy would be established both physically and mentally, and be extended at least ten days when patients stayed their home after chemotherapy.