• 대한의용생체공학회:의공학회지
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• 제17권4호
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• pp.507-514
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• 1996

The automated ECG diagnostic systems in hospital have a low P-wave detection capacity in case of some diseases like conduction block. The purpose of this study is to improve the P-wave detection ca- pacity using wavelet transform. The first procedure is to remove baseline drift by subtracting the median filtered signal from the original signal. The second procedure is to cancel ECG's QRS-T complex from median filtered signal to get P-wave candidate. Before we subtracted the templete from QRS-T complex, we estimated the best matching between templete and QRS-T complex to minimize the error. Then, wavelet transform was applied to confirm P-wave. In particular, haiti wavelet was used to magnify P-wave that consisted of low frequency components and to reject high frequency noise of QRS-T complex cancelled signal. Finally, p-wave was discriminated and confirmed by threshold value. By using this method, We can got the around 95.1% P-wave detection. It was compared with contextual information.

• 한국수학교육학회지시리즈B:순수및응용수학
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• 제17권3호
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• pp.257-268
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• 2010

We investigate the existence of the following Dirichlet boundary value problem $({\mid}u'\mid^{p-2}u')'\;+\;(p\;-\;1)[\alpha{\mid}u^+\mid^{p-2}u^+\;-\;\beta{\mid}u^-\mid^{p-2}u^-]$ = (p - 1)h(t), u(0) = u(T) = 0, where p > 1, $\alpha$ > 0, $\beta$ > 0 and ${\alpha}^{-\frac{1}{p}}\;+\;{\beta}^{-\frac{1}{p}}\;=\;2$, $T\;=\;{\pi}_p/{\alpha}^{\frac{1}{p}}$, ${\pi}_p\;=\; \frac{2{\pi}}{p\;sin(\pi/p)}$ and $h\;{\in}\;L^{\infty}$(0,T). The results of this paper generalize some early results obtained in [8] and [9]. Moreover, the method used in this paper is elementary and new.

• Child Health Nursing Research
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• 제10권3호
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• pp.350-360
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• 2004

Purpose: To suggest ideas that promote sexual health and useful in planning sex education programs for middle school students. Method: This study surveyed 661 middle school students from three schools in Seoul and Chunchon. Result: The average degree of sexual knowledge was 31.5, while attitude was 32.5. There were statistically significant differences in sexual knowledge in relation to: coeducational environment (t=-5.776, p=.000), grade (F=36.351, p=.000), father's age (t=-2.510, p=.012), mother's age (t=-2.146, p=.032), economical status (F=3.264, p=.039), source of sexual knowledge (F=8.484, p=.000), the degree of interest in the opposite sex (F=16.871, p=.000), sexual discussions with parents (t=3.556, p=.000), sexual discussions with teachers (t=2.847, p=.005), and sex education (t=2.148, p=.032). Likewise, stastically significant differences in sexual attitudes were linked to: coeducational environment (t=-7.646, p=.000), subject's grade (F=32.743, p=.000), parental marriage status (t=2.338, p=.020), mother's age (t=-2.048, p=.041), source of sexual knowledge (F=6.917, p=.000), the degree of interest in the opposite sex (F=15.559, p=.000), sexual discussions with parents (t=3.908, p=.000), and sexual discussions with teachers (t=2.946, p=.003). The students level of sexual knowledge and attitude was significantly correlated (r=.686, p=.000). Conclusion: This study indicates a variety of systematic sexual education programs are needed for middle school student at home and school.

• 재활간호학회지
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• 제5권1호
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• pp.49-59
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• 2002

The purpose of study was to identify relationship between body image and depression of diabetes mellitus patients. The subjects of study were 120 diabetes mellitus patients who were B hospital in Pusan. Data were collected from 15th April to 20th August, 1998. The instrument used for this study were Osgood's body image scale and Zung's depression scale. The collected data were analyzed frequency, percentage, mean, standard deviation, t-test, ANOVA, Scheffe test, Pearson's correlation coefficients. The results were as follows: 1. The mean score of body image was $68.91{\pm}18.04$, and the mean score of depression was $56.18{\pm}11.58$. 2. The score of body image according to marital status(t=-2.434, p=.016), economic status (F=6.252, p=.001), reason of different regular hospital visiting(F=3.017, p=.014), treatment method of diabetes mellitus(F=3.048, p=.013) were significantly difference. ere significantly difference. 3. The score of depression according to sex(t=2.353, p=.020), occupational status(F=4.657, p=.002), marital status(t=-2.325, p=.022), economic status(F=5.536, p=.001), regular hospital visiting(t=2.081, p=.040), reason of different regular hospital visiting(F=3.352, p=.007), treatment method of diabetes mellitus(F=3.102, p=.012), paticipation of diabetes mellitus(t=3.726, p=.000), paticipation of diabetes mellitus visiting(F=4.819, p=.003) were significantly difference. 5. Body image and depression was a significant negative correlation(r=-.679. p=.000). Conclusion: From this study, a relationship between body image and depression inpatients with diabetes mellitus was idetified. Therefore, nursing intervention are needed to promote body image and depression in patients with diabetes mellitus.

• 한국보건간호학회지
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• 제24권1호
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• pp.39-48
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• 2010

Purpose: To examine the effects of a 36-week resistance training program on body composition, fitness and blood lipid profiles in the obese elderly. Method: fourteen subjects were assigned into the resistance training group. The 12-16 exercise sessions were performed for 60min with 15-25 repetitions twice per week for 36 weeks. Data were analyzed by paired t-test with SPSS version 12.0 for Windows. Results: Significant changes were evident in weight (t=5.983, p<.001), body mass index (t=5.922, p<.001), % body fat (t=3.480, p=.004), and fat free mass (t=-2.592, p=.022). Concerning exercises, no significance was noted for back scratch (t=-1.814, p=.093), but were for 2-min step (t=-3.075, p=.009), arm curl (t=-2.223, p=.045), chair stand (t=-3.671, p=.003), chair sit and reach (t=-2.508, p=.026), and 8-ft up and go (t=5.545, p<.001). No significant changes were evident in total cholesterol (t=1.189, p=.279), and total glucose (t=0.689, p=.517), while the change in high-density lipoprotein was significant (t=3.535, p=.012). Conclusion: The 36-week resistance training program enhanced body composition and physical fitness, but not blood lipid profiles in obese elderly subjects.

• 한국방재안전학회논문집
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• 제12권2호
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• pp.25-34
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• 2019

본 연구에서는 산화구 방법으로 하수처리를 하는 공공 하수처리장을 선정하여 통계적인 방법으로 처리장의 수질 및 운영의 효율을 분석하였다. 얻어진 수질 데이터는 유입수 및 배출수의 pH, 온도, BOD, SS, T-N, ${NH_4}^+-N$ 및 T-P였다. 데이터 분석은 군집분석, 상관분석, ANOVA 분석, 클러스터 분석으로 수행되었다. 통계분석 결과, 하수 처리장의 유입 유량은 여름에 가장 높았으며 평균 유속은 $3.000m^3/s$이었다. Box plot 결과에 따르면, 하수의 COD, 총인 농도는 계절에 변화에 따라 크게 차이가 없었다. Pearson 상관관계 분석결과는 유입수에서 BOD, COD, T-N 및 T-P 간에 강한 양의 상관관계를 보였다. 계절변화에 따른 BOD와 T-N 농도는 겨울철에 가장 높았고, 계절에 따른 온도의 영향은 COD와 T-P가 가장 높았다. BOD는 수온과 음의 상관관계를 보였으나 HRT, SRT, C/N과 같은 공정인자는 양의 상관관계를 나타내었다. 유입수 온도가 높을수록 BOD 농도가 낮아지는 현상을 보였으며, 체류 시간이 단축될수록 BOD의 처리 효율이 저하되었다. T-N은 효율적인 처리를 위해 긴 체류 시간이 필요했으나 T-P는 공정인자의 변화에 따른 상관관계도에서 다소 적게 나타났다.

• 생물정신의학
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• 제7권2호
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• pp.180-185
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• 2000

Objective : The present study was designed to compare Global Field Power Measurement and conventional method in P300 determination. Method : The subjects were composed of patients(N=20) with schizophrenia by DSM-IV and normal controls(N=20). The auditory event related potential P300 was measured by "oddball paradigm". P300 components were determined by Global Field Power Measurement and conventional method at 5 electrodes(Fz, Cz, Pz, $T_3$, $T_4$). Results : P300 amplitudes of patients were smaller than those of controls across all electrodes and in both methods, but there was no differential power in P300 determination between two methods. Asymmetry of auditory event-related potential P300 was not shown between patients with schizophrenia and normal controls. Conclusion : It is implicated that it depends on clinical situations and research purposes what method of P300 determination will be more appropriate for patients with schizophernia.

• 재활간호학회지
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• 제13권1호
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• pp.62-69
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• 2010

Purpose: The purpose of this study was to evaluate the effects of an integrative weight control program including East Asian traditional medicine on the degree of obesity and body compositions. Method: Using one group pre-post test design, 63 subjects aged 19 years or older were conveniently recruited from D University hospital. The weight control program consisted of acupuncture, aerobic exercise, moderate caloric restriction, and behavioral modification for weight loss. Paired t-tests were conducted using the SPSS V18.0. Results: Body weight (t=10.44, p<.001), body fat mass (t=11.47, p<.001), percentage of body fat (t=11.49, p<.001), the degree of obesity (t=10.48, p<.001), body mass index (t=10.66, p<.001), waist circumference (t=10.25, p<.001), hip circumference (t=6.10, p<.001), and WHR (t=2.21, p=.040) decreased after administering the integrative weight control program. Conclusion: This integrative weight control program effectively reduced the obesity degree and percentage of body fat. Further study is needed to replicate our program in a larger sample with control group to validate the findings.

• 임상간호연구
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• 제14권1호
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• pp.25-32
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• 2008

Purpose: The purpose of this study was to examine quality of life with patients in 12 months after coronary artery bypass graft surgery, compared with general population. Method: A cross-sectional comparative study was designed. Study participants were 90 adults who had undergone CABG surgery (n=45) in experimental group and general population (n=45) in control group. The subjects were asked the questionnaire (SF-36, Short Form-36) regarding the quality of life. The data were analyzed by the SPSS 13.0 program including frequency, percentage, $x^2$ test, t-test and One-Way ANOVA. Results: There were no significant differences in the quality of life between two groups including physical functioning (t=-.938, p=.351), role-physical limitation (t=-.322, p=.748), bodily pain (t=-.938, p=.351), general health (t=-.1418, p=.888), vitality (t=-.816, p=.417), social functioning (t=.720, p=.474), role-emotional limitation (t=-.710, p=.479), mental health (t=-.431, p=.667). Conclusion: Even though patients in experimental group had operation experience, the quality of life examined on the time of 1 year after bypass surgery is similar in that of general population. We suggest the study change the design as examination of quality of life before and after coronary artery bypass graft surgery.

• 동서간호학연구지
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• 제18권2호
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• pp.74-80
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• 2012

Purpose: The purpose of this study is to evaluate the effects of Lavender inhalation on sleep, depression and stress of institutionalized elderly. Methods: The methods used in the study follows a non-equivalent pre- and post-test design. 39 institutionalized elderly were recruited using a convenient sampling method that assigned them to the experimental or the control group. The experimental group were then provided with essential Lavender oil, as part of the aroma inhalation intervention, to inhale before sleeping for 7 days. The collected data were analysed with SPSS 18.0 (windows program), using frequency percentage (%), a Chi-square test and an independent t-test. Results: The results were that the experimental group had significantly higher sleep status scores(t=5.195, p=.000), and lower depression scores (t=-5.479, p=.000), physical stress scores (t=-5.741, p=.000) and psychological stress scores (t=-4.233, p=.000) than those in the control group. Conclusion: This study suggests that aroma inhalation, as part of aroma therapy, be applied and comprehensively adopted as a method of nursing intervention for improvement of sleep, depression and stress for institutionalized elderly.