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민감도 분석을 적용한 제주 연안 풍력단지 설계의 경제성 분석
이경현(K. H. Lee),박재희(J. H. Park),진정운(J. W. Jin),권기린(K. R. Kwon),최경현(K. H. Choi) 한국동력기계공학회 2012 동력시스템공학회지 Vol.16 No.5
In this paper, the offshore wind farms have been designed by using WindPRO with the help of real wind data measurements at Jeju Costal area by calculating the annual energy production for exact economic evaluation. In order to achieve benefit of wind farm, the annual revenue for power generation have been calculated with SMP and REC value. And construction cost has derived from the real wind farm project case. Also O&M cost has been estimated by OMCE (Operating & Maintenance Cost Estimator) to get accurate cost of wind farm. Economic evaluation of wind farms have been performed by comparing above parameters. In addition, sensitivity analysis calculating the effect of these factors has also been carried out
유전체 박막을 이용한 다이아프램형 광섬유 Fabry - Perot 간섭계압력센서의 특성
김명규,유양욱,권대혁,이정희,김진섭,박재희,채용웅,손병기 ( M . G . Kim,Y . W . Yoo,D . H . Kwon,J . H . Lee,J . S . Kim,J . H . Park,Y . Y . Chai,B . K . Sohn ) 한국센서학회 1998 센서학회지 Vol.7 No.3
The strain characteristics of a fiber optic Fabry-Perot pressure sensor with high sensitivity using a Si₃N₄/SiO₂/Si₃N₄ (N/O/N) diaphragm is experimentally investigated. A 600 nm thick N/o/N diaphragm was fabricated by silicon anisotropic etching technology in 44 wt KOH solution. An interferometric fiber optic pressure sensor has been manufactured by using a fiber optic Fabry-Perot intereferometer and a N/O/N diaphragm. The 2 cm length fiber optic Fabry-Perot interferometers in the continuous length of single mode fiber were produced with two pieces of single mode fiber coated with TiO₂ dielectric film utilizing the fusion splicing technique. The one end of the fiber optic Fabry-Perot interferometer was bonded to a N/O/N diaphragm, and the other end was connected to an optical setup through a 3 dB coupler. For the N/O/N diaphragm sized 2 x 2 ㎟ and 8 x 8 ㎟, the pressure sensitivity was measured 0.11 rad/kPa and 1.57 rad/kPa, respectively, and both of the nonlinearities were less than 0.2%FS.
남자대학생의 정신건강, 부모양육태도, 애착이 도박중독에 미치는 영향
김혜진,박재희,유지원,이수현,이지은,임소정,장우주,지연주,최민정,김석선,박향진 이화여자대학교 간호과학대학 2016 이화간호학회지 Vol.- No.50
Objectives: The purpose of this research was to identify the effect of mental health, parenting attitude and attachment on gambling addiction severity among male college students. Methods: Subjects of the research were 292 students recruited from colleges in Seoul, Korea. The questionnaires were composed of CPGI, DASS-21, PBI, ECR-R. The data was statistically analyzed by Chi-square, ANOVA, Scheffe test and Pearson’s correlation. Results: The proportion of moderate-risk gambling and high-risk gambling group was reported 28.1%. There a statistically significant difference between gambling addiction severity groups in Anxiety(F=3.19, p<.05). Statistically significant linear relationship was found between Anxiety and gambling addiction score(r=.15, p<.05). There was statistically significant difference between gambling addiction severity groups in Caring(F=4.74, p<.01). Statistically significant linear relationship was found between Caring and gambling addiction score(r=-2.14, p<.01). There was statistically significant difference between gambling addiction severity groups in Overprotection(F=4.74, p<.01). Statistically significant linear relationship was examined between Overprotection and gambling addiction score(r=.20, p<.01). Significant difference was examined between gambling addiction severity in Attachment Anxiety(F=3.76, p<.05). Attachment Anxiety showed significant linear relationship with gambling addiction score(r=-.17, p<.01). Significant differences were examined between gambling addiction severity in Attachment avoidance (F=3.46, p<.05). Attachment avoidance showed no significant relationship with gambling addiction score(r=-.09, p=.12). Conclusions: This study showed the effect of mental health, parenting attitude and attachment on gambling addiction severity among male college students. Based on the result, it is recommend for nurses to develop intervention to prevent gambling addiction among college students by lowering anxiety, stabilizing attachment through desirable caring attitude from parents.