• Journal of Korean Society for Atmospheric Environment
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• v.32 no.3
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• pp.248-255
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• 2016

The leaves of three plant species, such as soybean, raspberry, and kudzu, exposed to hydrogen fluoride was collected in an area surrounding an emission source where the release accident occurred. The ultrasonic-assisted extraction and analysis of fluoride by ion chromatography was carried out. The mean concentration of fluoride in the leaves of three plant species exposed to hydrogen fluoride was $5,409{\pm}1,198mg\;F/kg\;dry\;wt$ and $788{\pm}339mg\;F/kg\;dry\;wt$, respectively. The mean fluoride concentration in ambient air were estimated to be $2.36{\pm}0.65mg/m^3$ ($2.89{\pm}0.79ppm$) and $0.35{\pm}0.15mg/m^3$ ($0.43{\pm}0.19ppm$) in exposed and unexposed sites, respectively. It seems likely that the passive monitoring using plant leaves could identify with respect to plant risk by fluoride in atmosphere.

• Speech Sciences
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• v.9 no.4
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• pp.15-25
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• 2002

It's not easy to produce very high tones during singing for not only untrained ordinary people but also even trained singers. To get high singing tones from the low tones, some trained singers used to use a distinguished singing technique, Passaggio (vocal register transition). The purpose of this study is to compare several voice parameters variation between when to sing with using the passaggio technique and to sing without using it. We selected 18 male singers (tenor 8, baritone 10), who had more than 7 years of experience and were well trained in passaggio technique. Simultaneous measurements of fundamental frequency (F0), mean flow rate (MFR), intensity (I), and subglottal pressure (Psub) were performed using the phonatory function analyzer (Nagashima). For the tenor, target tones /a/ were presented: 1) easy phonation: $B_{2}$, 2) high tone without passaggio: F$#_{3}$ 3) high tone with passaggio: F$#_{3}$. For the baritone, target tones /a/ were presented: 1) easy phonation: G$#_{3}$, 2) high tone without passaggio: D$#_{3}$, 3) high tone with passaggio: D$#_{3}$. F0 of the target tones between non-passaggio group and passaggio group was almost the same in both tenor and baritone groups. Intensity of the non-passaggio and passaggio vocalization was much louder than that of easy phonation and pasaggio was louder than non-passaggio vocalization (especially statistically significant in baritone singers). MFR of the passaggio vocalization was greater than non-passaggio vocalization in both tenor and baritone group, but statistically significant only in baritone. Psub of the passaggio vocalization was greater than that of the non-passaggio vocalization in both tenor and baritone group, but statistically not significant in tenor.

• Research in Community and Public Health Nursing
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• v.14 no.1
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• pp.144-156
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• 2003

This study was conducted to investigate the relationship between the self-esteem, social support and health promoting lifestyle of the elderly in a community. The sample consisted of 147 elderly, and data were collected from September 1 to October 15, 2001. The instrument of this study was a structured questionnaire including Health Promoting Lifestyle (47 items), Social Support(18 items), Self-Esteem(10 items), Socio-demographic Characteristics. Analysis of the data was done by use of descriptive statistics, ANOVA, Pearson Correlation Coefficient. The results of this study are as follows: 1. The degrees of self-esteem of the elderly were mean score $25{\pm}2.98$ points, socio-demographic characteristics containing meaningful difference with self-esteem was not significant. 2. The degrees of social support by elderly were mean score $55.03{\pm}9.60$ points and social support according to the socio-demographic characteristics showed meaning difference in family structure $\ulcorner$with off spring$\lrcorner$ (F=8.50, p=.000), health status $\ulcorner$good$\lrcorner$ (t=2.19, p=.030), smoking $\ulcorner$below 1 packet daily$\lrcorner$ (F=4.88 p=.009). 3. The degrees of health enhancing lifestyle by elderly were mean score $113.61{\pm}20.12$ points and health enhancing lifestyle according to the socio-demographic characteristics showed meaning difference in education level $\ulcorner$middle school and above$\lrcorner$ (F=6.37 p=.002), occupation before retirement $\ulcorner$profession, technician, employee of company, education$\lrcorner$ (F=5.00, p=.003), health status $\ulcorner$good$\lrcorner$ (t=3.14, p=0.002), exercise $\ulcorner$weekly 2-3$\lrcorner$ (F=4.31, p=.006), drinking $\ulcorner$weekly 1$\lrcorner$ (F=2.74, p= .046). 4. The item mean score of personal relationship support field in health enhancing lifestyle were $2.90{\pm}.60$ points. item mean scores of exercise and nutrition were $2.26{\pm}.39$ points, item mean scores of stress managing field were $2.25{\pm}.49$ points, item mean scores of health responsible field were $2.14{\pm}.61$ points. 5. The relationship between self-esteem and health enhancing lifestyle revealed a significant correlation(r=.169. p=.041), but self-esteem and social support, showed no significant correlation, and health enhancing lifestyle and social support, revealed a significant correlation(r=.654, p=.001).

• The Korean Journal of Emergency Medical Services
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• v.7 no.1
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• pp.119-126
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• 2003

The results of analyzing the questionnaires with 119 emergency staffs working in Gwangju and Jeonnam region are as follows. 1. The whole stress score was mean 2.94 and the degree of stress from personal relationship was highest as 3.22. 2. There were significant differences in possession of qualification related to public health and medical treatment (F=3.090, p=.030) in service factors, total career of emergency staffs (F=2.979, p=.023) in working environment factors, age (F=2.835, p=.042) and sex (F=2.375, p=.019) in social position factors, possession of medical qualification (F=3.995, p=.010) and household account burden (F=2.777, p=.045) in personal relationship factors. 3. There were correlations (p=.475) between working environment factors and social position (p<0.01) and correlations (p=.508) between working environment factors and personal relationship factors (p<0.01). There was correlation (p=.415) between social position and personal relationship factors(p<0.01). More concrete research that examines whether current fire station operation system is desirable or not by comparing the degree of stress of the whole 119 emergency staffs in Korea is needed and it is considered that real allowance level should be secured to reduce their stresses and facility and guarantee system to satisfy their demands for welfare are required.

• Journal of Korean Society of Water and Wastewater
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• v.32 no.1
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• pp.19-25
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• 2018

The objectives of this study were to evaluate the removal characteristics of total nitrogen, the influence factor of denitrification and the optimum operating condition in the pigment wastewater treatment using PAC-A/O process. The operating conditions of PAC-A/O process were mean BOD volumetric loading $0.86kgBOD/m^3/day$, mean F/M ratio 0.072~0.13 kgBOD/kgMLVSS/day and mean C/N ratio 3.47, respectively. The conditions of anoxic process in the field plant test were mean pH 8.3~8.7 and mean temperature $34.1{\sim}44.0^{\circ}C$. The ORP bending point knee was eventually appeared in the ORP -107 mV and $NO_3{^-}-N$ removal efficiency was increased according to the ORP decrease. In the ORP -107 mV below condition, the removal efficiency of T-N and $NO_3{^-}-N$ was 92.3~95.0% and 98.5~99.7%. Denitrification rate was calculated to be 1.581~1.791 mg $NO_3{^-}-N/gMLSS/hr$. The experimental results showed that the ORP control in the PAC-A/O process could be an effective method for treatment of pigment wastewater.

• Journal of Animal Science and Technology
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• v.48 no.2
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• pp.247-254
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• 2006

The present study was carried out to determine the effects of feeding levels of barley grain in diets of Hanwoo on the growth performance and carcass characteristics of Hanwoo. Twenty Hanwoo bull calves (initial mean body wt. 99kg) were randomly divided to examine the effects of 5 feeding levels of barley grains(addition levels: 0, 0 and 40% for FII40; 0, 0 and 60% for FII60; 0, 20 and 40% for F2040; and 0, 20 and 60% for F2060 during the growing, early fattening and late fattening periods, respectively) on growth performance and meat quality. Body weight was not affected by the feeding level of barley grains through the whole experimental period, although the body weight of Hanwoo bulls fed FII40 diet at 24 months old of age tended to be lower(591.5kg) than that of other animals(606.2～614.6kg). However, body weight gain in the bulls of the FII60 diet was slightly increased(P<.19). The feeding levels of barley grains did not influence on fasting body weight, carcass weight, carcass rate, lean meat, retailed cut, KPH fat and bone yield. The lean meat yield(89.82%) and fat yield(20.28%) tended to increase in Hanwoo bulls fed the F2060 compared with other treatments. Feeding of the diets of FII40 resulted in the higher marbling scores as 3.75, respectively than other diets.

• Korean Journal of Veterinary Research
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• v.40 no.2
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• pp.283-290
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• 2000

The present study was carried out to investigate the blood markers of Cheju horses. The blood protein types (biochemical polymorphism) were tested from 73 Cheju native horses (CNH) and 118 Cheju racehorses(CRH) by horizontal polyacrylamide gel electrophoresis (HPAGE), isoelectric focusing (IEF) and starch gel electrophoresis (SGE). At the same time, their phenotypes and gene frequencies were studied. The biochemical polymorphism phenotypes observed with high frequency were A1B-KK(97.3%), ALB-AB(49.3%), AP-SS(100%), ES-II(30.1%), GC-FF(87.7%), HB-BIBI(49.3%), TF-F2R(41.1%), TF-EF2(8.2%), PGD-FF(97.3%), PGM-SS(50.7%), GPI-II(74.0%) in CNH, While A1B-KK(99.2%), ALB-BB(50.8%), AP-SS(99.2%), ES-II(42.4%), ES-IS(14.4%), GC-FF(95.8%), HBB-IB II(39.8%), TF-F2R(21.2%), PGD-FF(77.1%), PGD-SS(4.3%), PGM-SS(72.9%), GPI-II(90.7%) in CRH. Alleles observed with high frequency were $AlB^{K}$(0.986), $ALB^{B}$(0.616), $AP^{S}$(1.000), $ES^{I}$(0.479), $ES^{F}$(0.274), $GC^{F}$(0.938), $GPI^{I}$(0.856), $HB^{BI}$(0.685), $PGD^{F}$(0.993), $PGM^{S}$(0.753), $TF^{F2}$(0.404), $TF^{R}$(0.397) in CNH and $AlB^{K}$(0.996), $ALB^{B}$(0.720), $AP^{S}$(0.996), $ES^{I}$(0.661), $ES^{F}$(0.203), $GC^{F}$(0.979), $GPI^{I}$(0.936), $HB^{BI}$(0.534), $PGD^{F}$(0.864), $PGM^{S}$(0.852), $TF^{F2}$(0.428), $TF^{R}$(0.272) in CRH. $TF^{E}$(0.041) allele and silent gene($ES^{I{^*}}$ : 0.014) were observed in CNH. The mean heterozygosity in CNH and CRH was observed 0.2974 and 0.2864, respectively.

• Women's Health Nursing
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• v.7 no.4
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• pp.622-630
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• 2001

This study aims at examining relationships between body mass index and perceived body shape and image. Using a purposive sampling method, 404 female college students were recruited from three universities located in Busan from April 2000 to June 2000. To classify the levels of obesity, Broca's method was used. Secord & Jourard's Body Cathexis Scale(1953) modified by Kim mi ok(1997) was also used to measure body image. The collected data were analyzed with the percentages, Mean, Standard deviation, T-test, and Pearson correlation Coefficient. The results of this study were as follows. 1. 56.4 % of subjects were under weight, and 42.1% were normal for BMI. 2. 55.9% of subjects were very satisfied with their body shape and 15.1% were satisfied. 3. The mean values of perceived body shape according to the BMI were 3.0 for the overweight group, 2.65 for the normal weight group, and 2.21 for the low weight group, the mean differences among three groups were significantly satisfied (F= 21.42, P= .000). 4. The mean scores of body image according to the BMI was 160.21 for low weight group, 155.57 for the normal weight group, and 140.0 for overweight group. The mean differences among the three groups were not significantly satisfied. 5. The mean scores of body image according to perceived body shape were 17819 for the satisfaction group, 161.08 for the moderate group and 150.82 for dissatisfied group. The mean differences among the three groups were significantly satisfied (F= 35.72, P=. 000). 6. There were high positive correlations between BMI and perceived body shape(r= .317) and between perceived body shape and body image (r=- .415).

• The Journal of the Acoustical Society of Korea
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• v.30 no.4
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• pp.231-237
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• 2011

The purpose of this study is to examine the correlation between the preferred sensation type and speech sounds, especially on $F_0$ and the speech rates. Data for the sensation types and speech sounds were collected from 36 undergraduate and graduate students (17 male, 19 female). Subjects were asked to read a given text (400 syllables), describe a drawing, and give answers to some questions. We measured speakers' $F_0$ and speech rates. The results show that type V (Visual) has the correlation with the speech rates when type D (Digital) was ruled out, and type A (Auditory) has the correlation with the speech rates when type D was included. Furthermore, the analysis of the mean values of V, A, K (Visual, Auditory, Kinethetic) indicates that type V is characterized with faster speech rates and higher $F_0$ in all parts except for interview and the same is true for that of V, A, K, D (Visual, Auditory, Kinethetic, Digital) in all parts. In conclusion, this study proved that the preferred sensation type has the correlation with $F_0$ and speech rates. Based on the results of this study, $F_0$ and speech rates can be used to analyze the sensation types for individualized education as well as consultation. In addition, this study has great significance in that it lays a foundation for the study on the correlation between a preferred sensation type and speech sounds.

• Women's Health Nursing
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• v.6 no.4
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• pp.465-476
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• 2000

The purpose of this study was to investigate the relationship between climacteric symptoms and depression of middle-aged women. Data were collected from Jul. 1 to Jul. 31, 2000 by a structured questionnaire. The Subjects were 102 middle-aged women who non-hysterectomized and ranged in age from 40 to 59. The instruments were the climacteric symptoms scale developed by Neugarten and depression scale developed by Zung. The Data were analyzed by the SPSS/PC+ program using t-test, ANOVA and Pearson Correlation Coefficient. The results of the study were as follows ; 1. Mean score of climacteric symptoms was 0.72. 2. There were statistically significant differences in the score of middle-abed women's self reported climacteric symptoms according to the age(F=3.13, P<0.05), and times of pregnancy(F=3.24, P<0.05). 3. Mean score of depression scale was 49.2. About 39% of the women displayed a variety depression symptoms. 4. Women's degree of climacteric symptoms showed a positive correlation with the degree of depression(r= 0.5393, P<0.001). This study shows possible implication for nursing intervention of middle-aged women's health to prevent and relieve climacteric symptoms.