• 한국IT서비스학회:학술대회논문집
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• 2008.05a
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• pp.199-205
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• 2008

유비쿼터스 환경의 필수 부분인 홈 네트워크는 많은 서비스들을 가지고 생활 곳곳에 파고들고 있다. 정부의 IT839정책을 기반으로 홈 네트워크의 실용화와 구체적인 정책을 형성하기 위해 활발한 연구가 진행되고 있다. 국내와 해외의 홈 네트워크 융성 정책 비교, 고객의 홈 네트워크 서비스 별 선호도를 비롯하여 최근에는 홈 네트워크 서비스의 사용의도와 관련한 연구들까지 있었다. 본 연구는 이러한 연구들을 바탕으로 홈 네트워크 사용의도에 영향을 주는 요인들을 조사하고 이 관계에 있어서 인구통계 변수인 연령과 인터넷 사용량의 조절효과를 측정해보았다. 그리고 홈 네트워크를 자동화 서비스, 안전 서비스, 엔터테인먼트 서비스 세 집단으로 나누고 각각을 따로 분석하였다. 분석 집단은 현재 운영되고 있는 홈 네트워크 서비스를 직접 사용해 본 경험이 있는 아파트 거주자이다. 분석 결과 연령이 높을수록 홈 엔터테인먼트 서비스 사용 시 서비스의 사용용 이성과 보안성이 중요하게 작용하였다. 또한 인터넷 사용량이 많은 집단은 홈 자동화 서비스의 사용 시 해당 서비스로부터 얻을 수 있는 효용, 편익을 중요시 여겼다.

• Journal of the Korean Society of Food Science and Nutrition
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• v.29 no.4
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• pp.701-711
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• 2000

To provide the baseline information for establishing community based nutritional service system in the context of health promotion, we conducted nutrition survey for 196 adults (male ; 99, female ; 97) in Kyungpook area. Individual food intake was measured by 24-hour recall method, and then diet quality was evaluated by Index of Nutritional Quality (INQ) and Mean Adequacy Ratio (MAR). Average dietary intake of Ca and Vit A of total subjects were lower than Korean Recommended Dietary Allowances (Ca; 83% of RDA, Vit A; 77% of RDA). On the whole, mean nutrients intake of male subjects were higher than that of female subjects. It also appeared that overall nutrients intake of younger women (20~29 yr) were lower than that of other age group. When we evaluated the nutrients intake of the subjects by INQ, Vit C (=2.39) showed the highest score. Ca (=0.89) and Vit A (=0.84) were revealed to be concerned nutrients in both quantity and quality. There was almost no difference in MAR between men and women (Men ; 0.88, Women ; 0.86). MAR showed significantrly positive correlation with age (p<0.05), meal frequency (p<0.001) and negative correlation with education level (p<0.01) in women, whereas no statistically significant relationship among these variables was observed in men. Age and meal frequency showed significantly positive correlation with most nutrients intakes among women. In conclusion, nutrition education strategies for sound food choice and regular meals need to be developed to improve the nutritional adequacy of female adults in the 20's.

• Proceedings of the KSLP Conference
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• 2003.11a
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• pp.239-239
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• 2003

연구목적 : 본 연구의 목적은 청각장애 아동들이 실제적으로 소리를 듣는 능력과 말소리를 이해하고 표현하는 언어 능력과 어떠한 관계가 있는가에 대해서 알아보고자 하는데 있다. 일반적으로 청각통합 능력은 청각장애 아동의 듣기 능력을 측정할 수 있는 대표적인 검사도구이며, MCDI-K는 부모가 언어능력을 평가할 수 있는 도구이다. 이 두 가지 모두 부모가 평가할 수 있는 도구이다. 따라서 본 연구에서는 청각통합 능력, 언어이해능력, 언어표현능력이 연령과 교육받은 시기와 어떠한 관계가 있는 가 알아보기 위해서 실시하였다. (중략)

• The korean journal of orthodontics
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• v.25 no.4
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• pp.465-485
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• 1995

The purpose of this study is to locate the proper position of the lower occlusal plane according to individual skeletal pattern. Cephalometric films of 234 subjects of the control group, 358 of the pretreatment group and 358 of the treated group were analyzed to study proper relationships between vertical dimension ratio(VDR) and lower occlusomandibular plane angle(LOM). The control group was divided into two subgroups by the age. The first subgroup consisted of 113 subjects of the age 14 years and under and with the mean age of 10.82 years. The other subgroup consisted of 113 subjects of the age 18 years and above with the mean age of 23.76 years. The pretreatment group was divided into three subgroups by the age. The first subgroup consisted of 274 subjects of the age 14 years and under with the mean age of 11.36 years. The second subgroup consisted of 54 subjects of the age 14 through 18 years with the mean age of 15.4 years. The last subgroup consisted of 30 subjects of the age 18 years and above with the mean age of 21.35 years. The treated group was also divided into three subgroups by the age. The first subgroup consisted of 145 subjects of the age 14 years and under with the mean age of 12.91 years. The second subgroup consisted of 166 subjects of the age 14 through 18 years with the mean age of 15.64 years. The last subgroup consisted of 47 subjects of the age 18 years and above with the mean age of 21.61 years. Cephalometric films of the sample were traced. Measurements were made to a hundredth using a program specifically prepared for this study, and the results were entered into a 486DX PC. Means and Standard deviations of all the veriables were calculated for each group. Correlation coefficients between pertinent variables were calculated. Significance tests on those coefficients, one-way ANOVA and t-tests between variables or groups were performed. On the basis of the results studied above, certain subjects were selected from the control and the treated groups to locate the proper position of the occlusal plane, and designated as the optimal occluaion group. The subjects of this optimal occlusion group had 1-3 mm overbite, 1-3 mm of overjet and less than 1.75 mm of curve of Spee. A total subjects of 187 in this group consisted 104 treated subjects and 83 control group. Regression analysis was carried out between VDR and LOM, and regression equations were tabulated for this optimal occlusion group. The results were as follows : 1. Highly significant correlations were observed between various variables useful for identifying vertical component of skeletal frame, but any one particular variable did not accurately indicate the magnitude of anterior vertical overbite. 2. Of the variables useful identifying vertical component of skeletal frame, The VDR showed the highest correlation to the LOM. 3. Of the total sample, 80 percent had overbite within the normal range, irrespective of VDR. 4. The optimal occlusion group was divided into 9 subgroups by the age and the anteroposterior skeletal pattern, and correlation coefficient and determination coefficient between VDR and LOM of each group were calculated. Correlation coefficients and determination coefficients were found to be significantly high in all groups. 5. Regression equation was induced for each of the optimal occlusion group to find proper LOM according to the VDR. 6. It was found that the mean value of the cant of occlusal plane itself is not enough for a diagnosis and a treatment plan. Rather, It is very important to locate the proper occlusal plane for an Individual skeletal pattern.

• Proceedings of the Korean Society of Radiological Science
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• 1995.10a
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• pp.131.1-131.1
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• 1995

• Water for future
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• v.54 no.10
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• pp.48-54
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• 2021

• Journal of the Korean Institute of Landscape Architecture
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• v.45 no.4
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• pp.45-53
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• 2017

Although the recent interest in and favor for natural burial has increased, there are still few who choose it as a funeral. The purpose of the study is to supply necessary information to promote the choice of natural burial. For this a survey of 430 students and residents was conducted in Daejeon. The result of the research is as follows. First, there is a significant difference in use intention of natural burial by age and religion. People under the age of 30 and Catholic believers recorded the highest score in use intention of natural burial. Second, there was a significant difference in information on natural burial by age or religion, in religion and philosophy by age, in physical environment by sex or age, and in conservation by sex or age. In general, the lower the age, the higher the positive perception of natural burial was. While females had a more positive perception of physical environment than males, males had a more positive perception of conservation than females. All sub factors of the perception of natural burial such as information on natural burial, funeral style, religion and philosophy, physical environment and conservation had a significant and positive effect on its use intention. However, ratio skew showed that religion and philosophy had the strongest effect on use intention of natural burial, followed by funeral style, physical environment, conservation, and information on natural burial.

• Journal of Preventive Medicine and Public Health
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• v.24 no.4 s.36
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• pp.496-506
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• 1991

A cross-sectional study was conducted to investigate the effect of long term noise exposure on blood pressure among steel mill workers. The workers participated in periodic medical examinations performed from August 27 to September 6 in 1990. Examined were 1,034 workers with high-level noise exposure(average $91.8{\pm}5.2dB(A)$) and 390 workers with low-level noise exposure(average $75.2{\pm}4.6dB(A)$). No significant difference was found in systolic or diastolic flood pressure between the two exposure groups. Prevalence of hypertension (${\geq}160mmHg\;systolic\;or{\geq}100mmHg\;diastolic$) was higher in a younger age group (${\leq}40$ years old) of high-level noise exposure than of low-level noise exposure. However, the difference was not statistically significant. Furthermore, in younger ages, prevalence of hypertension appeared to be higher in the hearing loss group (${\geq}25dB\;at\;1000Hz\;or{\geq}40dB$ at 4000Hz in at least one ear) than in the normal hearing group. From multiple regression analysis, hearing loss, body mass index, age, alcohol and family history of hypertension were proven to be predictors of diastolic blood Pressure (p<0.02). When regression was performed for each age group, hearing loss was a strong predictor of diastolic pressure in the younger age group (p<0.01).

• Korean Journal of Cognitive Science
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• v.24 no.4
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• pp.339-363
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• 2013

The age of acquisition effect is the phenomenon in which the words acquired early in life are processed better than the words acquired later in life. Age of acquisition and word frequency are critical factors in lexical processing. In this study we examined the age of acquisition effects in Hangul word recognition. In Experiment 1, we examined the AoA effects in word naming and lexical decision tasks. The results showed that there was an interaction between task and age of acquisition. The AoA effects appeared only in the lexical decision task. In Experiment 2, we examined the relationship between age of acquisition and word frequency in the lexical decision task. The results showed that the two variables were significant. The early-acquired words were processed better than the words acquired later, and the words with high frequency were processed better than the words with low frequency. However, there was no interaction between the two variables. In Experiment 3, we examined how phonological changes in Hangul words influence the AoA effects. The results show that the AoA effects were similar whether phonological changes occur or not. Our results are discussed in terms of several theoretical hypotheses.

• Korean Journal of Childcare and Education
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• v.8 no.4
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• pp.207-230
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• 2012

The purpose of this study was to examine which variables of interest predicted young children's adjustment to childcare centers. The variables of interest in the study include children's individual variables(gender, age, and temperament), peer competence, and relationship with teachers. The subjects were 130 preschoolers aged 2 to 3 and their mothers and teachers. SPSS 15.0 program was used to analyze the data of the study. The results showed the statistically significant differences in children's adjustment to childcare centers by gender. Also, statistically significant relationships were found between children's adjustment to childcare centers and their temperament, peer competence, and relationship with teachers. Finally, the results of regression analyses revealed that children's conflicts with teachers, closeness to teachers, and leadership in peer competence were found to be the influential predictor of children's adjustment to childcare centers. Implications for research and practice were discussed in the light of the study results.