• 한국학교ㆍ지역보건교육학회지
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• 제1권2호
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• pp.141-146
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• 2000

The purpose of this study was to inform teachers or researchers relating teaching boys and girls of basic data for valid obesity education. The researcher collected 10 students(5 boys and 5 girls) and measured skinfold thickness and body-fat-percentile(% body fat) on 3 parts of the body every month during a year. The researcher checked the spring(March), summer(July), autumn(October) and winter(January) data consecutively and tried to answer the question that which season especially need the preventive education of obesity. The result as followed ; 1. The skinfold and BFP in summer were more bigger than those in winter but these differences were not significant. 2. Girls have a propensity to get higher skinfold and BFP than boys but these differences were not significant neither. Briefly speaking, in 12 months, the skinfold and BFP(compared in summer) in winter season has the highest and it showed that it was necessary to teach students to preserve their appropriate body fat through diverse activities. The researcher expects successive studies for much more students and by type of students are executed for supporting these results.

• 한국태양에너지학회 논문집
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• 제38권5호
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• pp.1-9
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• 2018

The purpose of this study is to analyze the urban heat island ultimately by analyzing long-wave radiation which is the dominant factor of night minimum temperature formation. We observed during two months with four elements which is long and short wave radiation, temperature, relative humidity. And we analyzed the correlation between the four factors of long-wave radiation, temperature, cloud form, and cloud amount during the summer two months on the night time. Observations were carried out at two sites in Daegu and nearby. The results are as follows. (1) Long-wave radiation change per $1^{\circ}C$ in summer was larger than winter. (2) Long-wave radiation amount is affected by temperature change when the amount of cloud is small. (3) Low cloud was analyzed to have more influence on long-wave radiation than high cloud.

• Journal of Biosystems Engineering
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• 제33권6호
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• pp.390-395
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• 2008

Current high oil price and the agreement on global climate change prevention have increased worldwide investment and research on renewable energy. In Korea, development of a rapeseed dryer for bio-diesel production has been started in 2007. Usually, rapeseeds are harvested in early summer, because rice cultivation is followed right after rapeseed harvesting. Early harvest and bad summer results in highly moistured rapeseed and development of artificial drying system is required to dry great amount of rapeseed that couldn't be processed by sun drying alone. The rapeseed dryer was modified from an existing circulation type grain dryer. Modification of the dryer was performed with the aid of CFD simulation. Drying test showed that drying rate of rapeseed was 1.51%/h and germination rate reduction was 4.5%p for the drying temperature of $60^{\circ}C$.

• 복식
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• 제58권10호
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• pp.37-51
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• 2008

The purpose of this study is according to four Seasonal Color system, the researcher analyzed the Korean Personal color and investigated abstract color preferences and the fashion color preferences to support the Korean color preferences and the rotor recognition trend. The study was conducted according to the following procedures: 144 women from 20s to 50s were selected as participants of the survey and the interview. The fashion color preferences and the personal body color was analyzed by the questionnaire and the interview. The data were analyzed by SPSS 12.0 program. As a way of analysis, crosstabs analysis, correlation analysis, t-test, ANOVA and regression analysis were used. As a results, in the Personal color type of Korean women, it is distributed in the order of spring, summer, winter and autumn. In addition, Light image is highly distributed in the Personal color image. People preferred summer color group in the general color preference and the cosmetic color preference and they preferred winter color type in the clothes color and the suitable color for themselves. In the color recognition, as the color interest increases, the coincidence between suitable color and favorite color increased. The recognition of suitable color, the consideration of color in purchasing and the interest of outward appearances were highly showed.

• 한국환경과학회지
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• 제23권9호
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• pp.1619-1626
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• 2014

We analyzed diurnal variations in the surface air temperature using the high density urban climate observation network in Daegu metropolitan city, the representative basin-type city in Korea, in summer, 2013. We used a total of 28 air temperature observation points data(16 thermometers and 12 AWSs). From the distribution of monthly average air temperature, air temperature at the center of Daegu was higher than the suburbs. Also, the days of daily minimum air temperature more than or equal to $25^{\circ}C$ and daily maximum air temperature more than or equal to $35^{\circ}C$ at the schools near the center of Daegu was more than those at other schools. This tendency appeared more clearly on the days of daily minimum air temperature more than or equal to $25^{\circ}C$. Also, the air temperature near the center of the city was higher than that of the suburbs in the early morning. Thus it was indicated that the air temperature was hard to decrease as the bottom of the basin. From these results, the influence of urbanization to the formation of the daily minimum temperature in Daegu was indicated.

• 한국생활과학회지
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• 제3권1호
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• pp.71-80
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• 1994

The purpose of this study was to investigate the relationship between color preference and personality traits & personal factor among secondary school girls. Personality traits were measured. with Lee et al's Personality Scale. The questioniare measuring color preference consists of items designed to assess color and clothing color(T-shirt and slacks) preference and color repugnance. These questionaire were administerd to 576 middle and high school girls in Chungbuk Province. As statistical analysis, chi-square, F-test and correlation were used. The result were; 1. The order of prefered colors were white, yellow and green, and the order of repugnated colors were gray, red and red purple. 2. Personality traits was no signifcant related to color perference and repugnance. 3. Color perference was positively related to age, residential area and type of school. Color repugnance was positively related to age, residential area, type of school and educational background of mother. 4. Yellow red, yellow and white T-shirt were prefered in spring and autumn, white and blue T-shirt were prefered in summer, and black, gray and red T-shirt were prefered in winter. White and blue slacks were prefered in spring, summer and autumn seasons, and black, gray and blue slacks were prefered in winter. 5. There was a positive relationship between color perference and T-shirt color, but was no positive relationship between color perference and slacks color.

• 한국생활과학회지
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• 제23권5호
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• pp.919-928
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• 2014

The purpose of this study was conducted to improve middle school students' satisfaction on their uniform to provide basic information for the wearing condition. on their comfortable uniform. Survey was conducted on 532 boys' and girls' middle school students in Iksan City. This study analyzed the purchasing factors and modification, fitting evaluation, and satisfaction of comfortable uniform aspect of students. It was the questionnaire consisted of 18 questions in total. The results are as follows : First, boys' middle school students preferred 'activity' among the purchasing factors. Girls' middle school students preferred 'design' and 'activity' among the purchasing factors. Second, in purchasing types, boys' students bought the type of cooperative purchasing and the type of the school uniform special shop in girls' students. Third, 51.0% of the students interviewed have experienced to modify their uniforms. Since the non fashionable design and non suitable uniform length caused the students to modify their uniform. Also students did not satisfy the color and design in their comfortable uniforms. Thus school uniform maker should make that consider movement, color, design, functional elements and changing students' aesthetic sense.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1996년도 하계학술대회 논문집 C
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• pp.1867-1869
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• 1996

In this paper, in order to obtain the statistic information for parameters of electric and magnetic field waveforms associated with lightning discharges, the electric and magnetic fields produced by lightning discharges in the summer of 1995 were measured by a hemisphere-type electric field sensor and a loop-type magnetic field sensor, which were installed at the campus of Inha University in Inchon. The signals of the electric and magnetic fields were continuously recorded by a transient digitizer having a resolution of 12 bit and a memory capacity of 5000 point. Negative lightning discharges are produced very more than positive lightning discharges in the summer of Korea. The 10 to 90 % rise time of electric and magnetic fields was 2 $2\;{\sim}\;10\;{\mu}s$. And the zero-crossing time of electric field was $15\;{\sim}\;25\;{\mu}s$, whereas that of magnetic field was $20\;{\sim}\;30\;{\mu}s$.

• 한국작물학회지
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• 제38권2호
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• pp.166-173
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• 1993

하대두는 추대두에 비하여 생육특성상 고온다습의 조건에서 성숙하는 관계로 미이라병의 종자감염이 높아 적정입모를 확보하기 위해서는 종자소독의 필요성이 요구된다. 따라서 본 시험은 입중을 달리한 하대두 계통에서 종자소독에 의한 입모율 향상이 후기생육 및 수양에 미치는 영향과 미이라병의 감염정도에 따른 종자소독제의 처리효과를 구명코자 하였다. 1. 입중을 달리한 하대두 계통에 종자소독제를 분의 처리하여 파종하면 무처리에 비하여 발아율이 향상되었고 배축장이 길었으며 약제처리의 약효는 대립종에서 높고 소립종에에서 낮은 경향이였다. 2. 종자소독제를 처리했을때 후기생육, 주당엽수, 백립중 및 수양은 무처리와 비교하여 큰 차이가 없었다. 3. 동일품종내에서 미이라병의 가시적 감염증세가 경미하면 종자소독제의 처리효과는 적었고 심할수록 약제처리에 의하여 발아율과 발아세가 현저히 향상되었는데 그 정도는 대립종에서 높았다.

• 대한인간공학회지
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• 제18권1호
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• pp.71-90
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• 1999

This study was conducted to examine the comfortability of wearing pantyhose in summer. To satisfy this purpose. 4 types of pantyhose were chosen from the market: a Mono type(M), a Wooly type(W), and two Support types(Sl, S2), were chosen. After the performances of samples were measured, these were worn by 8 healthy adult women. Under the summer field environment, psychological comfort ability was examined through the 5 steps of SD method. Physiological comfort ability was examined by measuring the body reactions(clothing pressure, skin temperature, total body weight loss, rectal temperature, pulse rates, and blood pressure), under the artificial environment($28.5{\pm}0.5^{\circ}C$, $82{\pm}3%$). The results of this examination were as follows : The order of comfortability which people felt in the field was W>M>S1>S2. The number of items which showed the highest correlation with comfort ability decreased and the correlation was lowered on the whole as time went by. There was positive high correlation between the performances of samples and comfort ability in compressibility, air permeability, water vapor permeability, while a negative high correlation in thickness, weight, compressional resiliency, strain (course) and moisture regain. The mean skin temperature was in the comfort zone, and rectal temperature, pulse rates, blood pressure were mostly in the normal range. Also it was showed that the correlation between the performance of samples and body reactions, except total body weight loss, was low.