• 한국결정학회지
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• 제6권2호
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• pp.98-102
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• 1995

1-Ethyl-1,4-dihydro-7-methyl-1,8-naphthyridin-4-one-3-carboxylic acid [Nalicixic Acid]의 분자 및 결정구조를 X-선 회절법으로 연구하였다. 이 결정의 분자는 C12H12N2O3, 단사정계이고 공간군은 P21/c이다. 단위포상수 a=8.910(2)Å, b=13.145(3)Å, c=9.370(3)Å 이며, β=100.06(2)°, V=1080.6Å, T=293K, Z=4이다. 구조해석에 사용한 X-선은 CuKα선(λ=1.5418Å)을 사용하였다. 분자구조는 직접법으로 풀었으며 최소자승법으로 정밀화하였다. 최종 신뢰도 R값은 [F0>4σ(F0)]인 1555개의 독립회절반점에 대해 R=0.055이었다. 이 분자는 한 개의 내부수소결합 O(17)-H(17)…O(14)를 가지고 있다 [2.525(2)Å, 144.3(10)°].

• 대한통합의학회지
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• 제7권4호
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• pp.253-263
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• 2019

Purpose : The purpose of this study was to identify the self-efficacy, major satisfaction, and degree of adjustment to college life of nursing students and the relationships among the foregoing. Methods : This study was conducted with 319 nursing students in B city from May to June 2019. The collected data were analyzed with frequency, percentage, mean and standard deviation, t-test, ANOVA, Scheffe's test, and Pearson Correlation Coefficient using the SPSS /WIN 22.0 program. Results : The self-efficacy score of nursing college students was shown to be 2.95±0.32 points, major satisfaction score was shown to be 3.83±0.55 points, and college adjustment score was shown to be 3.52±0.55 points. The degrees of adjustment to college life were significantly different according to general characteristics of nursing students as follows; grade (F=6.614, p=.000), health condition (F=13.384, p=.000), club activities (t=4.557, p=.000), happiness index (F=32.094, p=.000), part-time job (t=2.781, p=.006), and motive of major selection (F=7.300, p=.000). The adjustment to college life of nursing students showed a weak negative correlation with self-efficacy (r=-.196, p<.001) and a strong positive correlation with major satisfaction (r=.782, p<.001). Major satisfaction and self-efficacy showed a weak negative correlation (r=-.185, p<.001). Conclusion : Through the results of this study, it can be seen that repetitive studies are necessary in relation to the self-efficacy, major satisfaction, and college adjustment of nursing students, and that interest in effort for the development of programs that can improve nursing students' major satisfaction and college adjustment are necessary.

• 한국세라믹학회지
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• 제31권6호
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• pp.685-693
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• 1994

Sublimation vapour pressures and sublimation enthalpy of anhydrous bismuth trifluoride have been measured by the continuous gravimetric Cnudsen-effusion method from 639-7 to 782.8 K. Additional effusion measurements have also been made from 750.6 to 863.1 K by the torsion-effusion method. Based on a correlation of subHo298.15 and subSo298.15, a recommended P(T) equation has been obtained for BiF3(s); logP= -C/T+5.2375logT-3.205$\times$10-3+4.661$\times$104/T2+1.348 where P is in Pa, T in Kelvin, subHo298.15 in kJ mol-1 and C=( subHo298.15-13.5149)/1.9146$\times$10-2. Condensation coefficients and their temperature dependence have been derived from the effusion measurements.

• 한국산업정보학회논문지
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• 제7권1호
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• pp.75-80
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• 2002

미분시스템의 안정성에 관한 이론에서 페론 방법은 각 개념의 정의와 적분부등식을 통해서 해의 정성적 규명을 연구하는 최근에 가장 일반적 형식 중의 하나이다. 이 논문을 통해서는 특히, 두 개의 섭동 e(t,x)와 f(t,x)를 수반하는 미분 시스템의 자명해와 접근적 안정성의 여러 가지 양태를 페론 방법을 써서 조사해 보고 이들의 충분조건을 찾아 몇 가지 정리를 얻었다.

• Child Health Nursing Research
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• 제6권3호
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• pp.329-343
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• 2000

This study was conducted to measure the degree of Korean Gender Egalitarianism among the students from six different high schools(132 girls, 127 boys) in Sunchon si, Chunnam province from Dec. 7th to Dec. 15th in 1999. The survey on gender egalitarianism was done in relation to the public understanding of the subject matter, parents' hug times, and parent's communication skills. Korean gender egalitari- anism scale was standardized by Korea Woman Developmental Institutes in 1999. The data was analyzed by SAS program. Results were as follows: 1) Generally, girls are more conscious of gender egalitariannism than boys(t=-13.79, p<.001). Above all, the younger the students are, the more they feel equal(F=8.01, p<.01). In sibling cases, two sisters have the highest level of gender egalitarianism while two brothers have the lowest level of gender egalitarianism(F=9.20, p<.001). Students who come from religious families are more inclined to demonstrate gender equality(t= 2.42, p<.05). However, there is no difference in relation to the parents' ages or academic background or harmony within the family. 2) There is no difference that girls and boys generally communicate with their parents. In ages, 17 years old students communicate more than 18, 19 with parents(father F=3.97 p<.05ㆍmother F=5.31, p<.01). That is, the younger students can communicate with their mothers more often than the older ones. In sibling cases, two sisters have more openly communication to parents while two brothers have(F=2.84, p<.05). Students communicate with their parents regardless of parents' academic background. But those from the family in harmony have more open chance to communicate than those who are not in hamony(father F=21.66, p<.001ㆍmother F=13.37, p<.001). They can comm -unicate with their parents better when their fathers hug them than when they didn't get hugs(father t=-4.76, p<.001ㆍ mother t= -2.34, p<.05). They can also communicate with their patents better when their mothers hug them once or more than when they didn't get hugs(father t=-3.78, p<.001ㆍmother t=-5.64, p<.001). 3) There is no difference whether the father hugs or not, but the mother's hug is very important because students whose mothers hug them once or more have significantly more gender egalitarianism than those students whose mothers didn't do(t=-3.98, p<.001). Based upon these results, it is recommended that we reconsider the role of gender in the socialization of high school students and also include gender egalitarianism in sex education. In this context, further study should be done for the improvement of students' communication within the framework of egalitarianism based upon parents' hugs(semi-language). Continued study is especially important in regards to the mother's hug and its enhancement of the students' gender egalitarianism.

• JSTS:Journal of Semiconductor Technology and Science
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• 제4권2호
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• pp.117-123
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• 2004

A 30 nm $In_{0.7}GaAs$ High Electron Mobility Transistor (HEMT) with triple-gate has been successfully fabricated using the $SiO_2/SiN_x$ sidewall process and BCB planarization. The sidewall gate process was used to obtain finer lines, and the width of the initial line could be lessened to half by this process. To fill the Schottky metal effectively to a narrow gate line after applying the developed sidewall process, the sputtered tungsten (W) metal was utilized instead of conventional e-beam evaporated metal. To reduce the parasitic capacitance through dielectric layers and the gate metal resistance ($R_g$), the etchedback BCB with a low dielectric constant was used as the supporting layer of a wide gate head, which also offered extremely low Rg of 1.7 Ohm for a total gate width ($W_g$) of 2x100m. The fabricated 30nm $In_{0.7}GaAs$ HEMTs showed $V_{th}$of -0.4V, $G_{m,max}$ of 1.7S/mm, and $f_T$ of 421GHz. These results indicate that InGaAs nano-HEMT with excellent device performance could be successfully fabricated through a reproducible and damage-free sidewall process without the aid of state-of-the-art lithography equipment. We also believe that the developed process will be directly applicable to the fabrication of deep sub-50nm InGaAs HEMTs if the initial line length can be reduced to below 50nm order.

• 재활간호학회지
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• 제7권2호
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• pp.220-230
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• 2004

Purpose: The study has planned to find out the perceived social support of the families with pneumoconiosis patients. Method: The subjects of the study were the 300 family care givers of the pneumoconiosis patients who were hospitalized in Taeback, Donghae and Jeongsun Occupational Medical Center. The Social Support Survey Instrument developed by Park(1985) was adopted. Results: The Direct Perceived Supports showed statistically differences by the age(F=1.70 p=0.01) and the state of the disease(F=3.09 p=0.027) of the patients. The Health Situation Centered Support was different by the marietal situation(F=2.29 p=0.48) of the pneumoconiosis patients. The Indirect Perceived Supports were statistically different by sex(t=3.76 p=0.043) and relation with the patient (F=2.49 p=0.048), group joining(t=3.79 p=0.042) of the family care givers. The DPSs were statistically different by family income(F=2.25 p=0.025), family authority(F=2.81 p=0.031) and health insurance status(F=2.13 p=0.026). Recommendation: It is recommended to develop an active social support program at the pneumoconiosis care centers for the middle aged female family care givers of the pneumoconiosis patients with the support of Ministry of Labor, Ministry of Health and Welfare and other NGOs of pneumoconiosis.

• 한국광학회지
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• 제17권1호
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• pp.1-6
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• 2006

우리는 6.7 kPa의 네온 버퍼가스가 포함된 루비듐 증기셀을 이용하여 $^{87}Rb$원자 $D_1$ 전이선에서 레이저의 세기, 증기 셀의 온도, 전이 선에 따른 비선형 광자기 신호(NMOE)의 특성을 조사하였다. 비선형 광자기 신호는 레이저의 세기와 증기셀의 온도가 증가함에 따라 F=2$\to$F'=2 전이선에서는 광자기 신호의 크기와 선폭이 증가하였지만, F=2$\to$F'=1 전이선에서는 확대 없이 신호의 크기만 증가됨으로써 자장 측정 민감도가 향상되는 것을 확인하였으며, 이러한 효과를 자기부준위 사이에서의 원자결맞음 구도의 차이로 설명하였다. 관측된 최적 조건에서 자기장변화에 대한 민감도는 $70pT/\sqrt{Hz}$ 이하로 계산되었다.

• 문화기술의 융합
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• 제8권1호
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• pp.219-226
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• 2022

본 연구는 간호대학생의 전공만족도, 자기존중감, 직업가치관의 정도 및 상관관계를 확인하기 위한 서술적 조사연구로서, 간호교육을 위한 기초자료를 제공하기 위해 시도되었다. 연구대상자는 C지역 일개 대학의 간호대학생 224명을 대상으로 하였다. 자료분석은 SPSS 22.0 프로그램을 이용하여 빈도와 백분율, 평균표준편차, t-test 와 ANOVA, Pearson's Correlation Coefficients로 분석하였다. 연구결과 전공만족도는 전공결정시기(F=4.127, P=.004)에서, 자기존중감은 전공선택동기(F=7.384, P=<.001)에서, 직업가치관은 전공선택동기(F=5.023, P=<.001)와 가족 중 간호사의 유무(F=3.501, P=<.001)에서 통계적으로 유의한 차이를 보였다. 간호대학생의 전공만족도, 자기존중감, 직업가치관은 유의한 양적 상관관계가 있었다. 본 연구결과를 통하여 간호대학생들의 전공만족도, 자기존중감, 직업가치관을 향상시킬 수 있는 교육훈련 프로그램 개발이 필요함을 제언한다.

• 한국통신학회논문지
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• 제39C권2호
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• pp.122-129
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• 2014

본 연구에서는 사용자에게서 취득한 뇌파의 감정분류를 시행하였고, SVM(Support Vector Machine)과 K-means 알고리즘으로 분류실험을 하였다. 뇌파 신호는 측정 한 32개의 채널 중에서, 이전 연구에서 감정분류가 뚜렷하게 나타났던 CP6, Cz, FC2, T7, PO4, AF3, CP1, CP2, C3, F3, FC6, C4, Oz, T8, F8의 총 15개의 채널을 사용하였다. 감정유도는 DVD 시청과 IAPS(International Affective Picture System)라는 사진 자극 방법을 사용하였고, 감정분류는 SAM(Self-Assessment Manikin) 방법을 사용하여 사용자의 감정상태를 파악하였다. 취득된 사용자의 뇌파신호는 FIR filter를 사용하여 전처리를 하였고, ICA(Independence Component Analysis)를 사용하여 인공산물(eye-blink)을 제거하였다. 전처리된 데이터를 FFT를 통하여 주파수 분석을 하여 특징추출(feature extraction) 하였다. 마지막으로 분류알고리즘을 사용하여 실험을 하였는데, K-means는 70%의 결과를 도출하였고, SVM은 71.85%의 결과를 도출하여 정확도가 더 우수하였으며, 이전의 SVM을 사용했던 연구결과와 비교분석하였다.