• Korean Journal of Childcare and Education
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• v.9 no.2
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• pp.47-73
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• 2013

The purpose of this study is to explore the relationships that a popular three year old child has with other children and teacher. One popular child was selected among thirteen children using peer-nomination method and participated in this study. During free choice play time, the popular child's various activities and interaction patterns were observed and analyzed. The popular child in this study had a steady intimate friendship with his best friend most of the time. However, he showed a tendency to behave as he pleased and give orders to other children who he was not in a close relationship with. He did some deliberate and premeditated acts to get praise and love from his teacher. The teacher's compensations also reinforced his intentional actions.

• Journal of the Korean institute of surface engineering
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• v.20 no.1
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• pp.15-24
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• 1987

超硬合金과 高速度鋼에 TiC, TiN 그리고 $Al_2O_3$의 耐 마모 코우팅시에 사용되는 CVD와 PVD 기술을 M E Sjostrand와 A G Thelin 등이 본 논문에서 논의하였다. 또한 CVD와 PVD 의 특별한 장점과 응용영역에 대하여도 토의하였다. 수년동안 CVD 기술은 금속질화물, 금속탄화물 그리고 금속산화물 등의 耐 마모 코우팅을 생산하는데 성공적으로 사용되어 왔다. Munster와 Ruppert에서는 1950년대 초기에 TiC와 TiN의 CVD 공정을 연구했는데 이런 코우팅 재료의 높은 화학적 안정성과 더불어 高硬鋼라는 독특한 성질로 인해 그 주요 영역이 명백해졌다. 1968년에 처음으로 CVD법에 의한 보호막 코우팅의 대규모 응용이 이루어졌는데 그것은 超硬合金 절삭공구의 코우팅이었다. (그림1 참고) 이것은 硬금속산업에 있어서 가장 중요한 발전단계였다. TiC, TiN 그리고 $Al_2O_3$로 코우팅된 공구의 생산은 1970년대에 빠른 성장을 보였으며 오늘날 사용되는 절삭날의 50% 이상을 점유하고 있다. (그림2 참고) TiC와 TiN은 현재 이용되고 있는 모든 耐 마모 코우팅 중에서 독보적인 위치를 차지하고 있다. 그 이유는 생산과정이 비교적 단순하기 때문이다. 지난 5년동안 절삭공구와 總形바이트의 코우팅에 대한 PVD기술의 응용이 폭발적으로 증가했다. 증착기술인 이들 CVD와 PVD 각각은 자체의 독특한 장점이 있으므로 그 응용영역은 증착조건, 즉 기지금속의 접착성과 증착온도 그리고 증착속도등에 따라 매우 다를 것이다. PVD 공정으로 인해 고속도 공구강이 급속도로 발전되었고 더우기 PVD공정은 500$^{\circ}C$ 이하의 증착온도에서 brazed carbide 공구의 코우팅을 가능하게 하였다. 따라서 두 증착기술은 서로 상반적이라기 보다는 상호보완적인 것이라고 생각하는 편이 더 좋다.TEMPLA에 비해 CLB의 수가 15.58% 감소되었다. 높은 활성을 나타내었다. 정제된 효소의 최적온도는 40$^{\circ}C$이었으며 20~50$^{\circ}C$에서 비슷한 활성을 나타내었고, 30$^{\circ}C$에서는 60분동안 효소활성이 거의 상실되지 않았다. 정제된 효소는 ethanol과 chloroform 처리에는 안정하였으나 12mM AT 와 0.1mM $NaN_3$ 및 1mM KCN에 의해 90% 이상의 활성이 억제되었다.이에 근거하여 서울시 학생들($7{\sim}18$세)의 만성신부전증 유병률은 1백만명당 5.7명으로 추정되었다. 결론 : 서울시내 학생들 중 11세, 14세, 17세 3개 군에서 한 번 검사로 확인된 무증상 단백뇨의 유병률은 0.28%(약 2.8명/1,000명)이었고 이들중 약 5%만이 3차검사에서 신질환이 의심되었으며 이에 따른 신질환 유병률은 1만명당 1.4명이었다. $7{\sim}18$세 연령층에서 무증상으로 발생하는 사구체 신질환 중에는 IgA 신병증의 유병률이 가장 높아 1만명당 0.64명으로 추정되었고 만성신부전증의 유병률은 1백만명당 5.7명으로 추정되었다. 집단뇨 검사를 통해 확인되는 신질환은 대부분 사구체 질환이기 때문에 집단뇨검사의 의의는 좀더 연구가 필요할 것으로 생각되었다. 오히려 증상을 동반하는 경우보다 빈도가 증가한다는 사실은 집단뇨 검사에서 소변의 이상소견이 발견되어 신장 조직검사를 실시할 경우 혈청 $C_3$치의 감소 여부에 관계없이 MPGN도 진단적 고려 대상이 되어야 한다고 생각한다.신장 조직검사를 시행한 결과 진행성 경과를 취할 수 있는 막 증식성 사구체 신염과 매우 희귀한 증례인 신유전분증 등으로 진단됨으로써 지속성 단백뇨의 경우 정확 진단적 접근이 필수적임을 알 수 있다. 기립성

• The Korean Journal of Vision Science
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• v.20 no.4
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• pp.505-511
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• 2018

Purpose : This study investigated the visual functions of drivers aged over 65 year olds and drivers aged 50~65 year olds. In addition, difference of visual functions between professional drivers and normal drivers were investigated. Methods : Forty Driver aged over 65 year olds and 67 drivers aged less than 67 year olds were participated. All participants had more than 5 years of driving experiences and had no ocular pathology. Demographic data(gender, job, age, body condition) and visual functions such as contrast sensitivity(CS), stereopsis, glare recovery time and discomfort glare index were measured. Results : Constrast sensivity under photopic condition was higher with bus driver group. In addition, difference of CS at 12cpd and 18cpd were signifcantly different between normal drivers(1.57) and bus drivers(1.70) (p<0.05). There was no significant difference for glare recovery time, despite of trend of longer recovery time with age. Discomfort glare index was significantly different that normal drivers with more than 65 year olds had 3, taxi and truck driver presented almost 5 index score (p<0.05). Conclusion : Analysis of visual function of elderly drivers, it was confirmed that their visual functions decreased with age. Therefore, visual function tests such as CS, discomfort glare index and stereopsis in addition to current available test may need to be considered for drivers aged over 65.

• Journal of the Korean Society of Costume
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• v.51 no.7
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• pp.147-165
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• 2001

The objective of this study was to develop the Jeogori Pattern for 9 to 10 year-old boys To determine the measurement items for the Jeogori Pattern making, applied factor analysis, correlation analysis and regression analysis to the 37 measurement items of the 9 to 10 year-old boys classified as a standard somatotype. To understand the shape and variation of the body surface, analyzed the replica of the upper body surface that was obtained by the method of using surgical tape. Be based on the results of the above studies, designed the Jeogori Pattern. The designed pattern was evaluated by the sensory test. The drafting methods of Jeogori Pattern obtained are as follows. $\circled1$ The measurement items are Bust Girth, Center Back Waist Length, Neck Width, and Hwajang Length. $\circled2$ Jeogori Length Center Back Waist Length$\times$4/3 $\circled3$ Front Body Girth(1/2) : B/2 + 1.5cm Back Body Girth(1/2) : B/2 + 3.5cm $\circled4$ Jin-Dong : B/4 + 3cm $\circled5$ Back Godae Width(1/2) : Neck Width/2 + 1.7cm Front Godae Width(l/2) : Back Godae Width(1/2) - 2cm $\circled6$Back Godae Point is 1.5cm higher than shoulder line, and Front Godae Point is 1.5cm lower than shoulder line. $\circled7$ Back Godae Depth: 1.2cm + 1.5cm = 2.7cm The Jeogori Pattern designed by the above method Is as (fig. 8) The results of the sensory test of the new pattern are as fellows. Except for 2 items, every mark of 24 test items has over 5.0 point and a total average mark is 5.25 point. Witch is a good mark. Therefore the new pattern is valid. Especially, the parts of Git, sleeves and back face have a high mark, so the appearances of those parts are excellent.

• Journal of Convergence for Information Technology
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• v.10 no.6
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• pp.109-118
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• 2020

The purpose of this research is to investigate the effects of interaction, gender, and age on preschool children's intimate relationship with entertainment robot dog. For this purpose, two kinds of experiments were conducted for 70 preschool children in day care centers in Seoul. Experiment 1 relates to the interaction with entertainment robot dog, 34 children aged 5 years (17 experimental groups, 17 comparative groups). Experiment 2 was a study on the effects of gender and age. A total of 36 children (pre- and post-group) of 12 children aged 3, 4, and 5 years old were included. This study interviewed the number of distributions and the motivations for distribution by using the "Dividing Game(Distribution Principle)" interview. As a result, firstly the group experiencing the interaction felt more intimate with the entertainment robot dog, and the reason was emotional factor the most(Experiment 1). Second, gender had no significant effect on entertainment robot dog intimacy and age showed a reverted U-shape. The above results are meaningful in that it reveals what kind of factors affecting the intimacy between the preschooler and entertainment robot dog.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.4
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• pp.329-335
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• 2019

The purpose of this study was to examine the application of personality education elements through discussion activities in the Nuri curriculum guidebook. For this, discussion activities were analyzed according to both frequency of age and life theme. Study results were as follows. First, according to the distribution related to the target age of students, the greatest number of personality education elements were for 5 year olds, followed by those for 4 year olds and 3 year olds. Specifically, 'consideration', 'respect', 'cooperation' showed a high distribution, whereas 'filial piety' and 'sharing' showed a very low distribution. Second, according to the distribution based on life theme, it appeared that personality education element converged on particular life theme. These results are intended to provide basic data for the future direction of personality education elements through discussion activities in the Nuri curriculum guidebook.

• 건강소식
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• v.38 no.2
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• pp.14-15
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• 2014

암 경험자 130만 시대다. 우리나라 인구 45명 중 1명이 암에 걸린 적이 있거나 치료를 받고 있다는 의미다. 자연히 암에 대한 정보도 차고 넘친다. 문제는 잘못된 암 정보. 맞지 않은 정보는 자칫 암을 악화시키는 지름길이 될 수 있다는 것. 암에 대한 대표적인 오해와 진실을 가려 보자.

• Monthly Korean Chicken
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• v.3 no.5 s.23
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• pp.2-8
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• 1997

국산 닭고기 품질 세계수준 발돋움 - 수출장려금제도 육계업에도 필요 - 농림부, 살처분 가축 보상가 상한선 확정 -미국의 계육 계란의 위생대책 - 일본의 닭고기 검사제도 - 세계 계육무역량 증가할 전망 - 중국의 가금산업 신장세 - 브라질 가금 수출 증가 - 미국, FSIS 오염도 계품 감독 철저 - 종계 22만 3천여수 수입 - 태국, 브로일러 산업 확장일로

• 월간낙농육우
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• v.34 no.12
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• pp.175-188
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• 2014

인천에서 11시간 30분을 날아 독일 프랑크푸르트, 다시 그곳에서 1시간을 더 날아 도착한 파리는 이미 밤이 깊어 있었다. 13시간 가까이를 비행기에서 보낸 일행들은 7시간 젊어진 프랑스의 수도 파리에 도착했다. 오랜 비행에 지칠 만도 했지만 내일부터 있을 연수에 대한 기대 때문인지 88년생 막내부터 56년생 최고참까지 22명의 여성낙농인들은 18세 소녀들처럼 활기가 넘쳤다.

• Korean Journal of Childcare and Education
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• v.9 no.3
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• pp.253-272
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• 2013

The purpose of this study was to supplement the NURI Curriculum by investigating the practicing level of the NURI Curriculum for 5-year olds according to the demographic backgrounds of early childhood teachers. The subjects of this study were 201 early childhood teachers who work at kindergartens and child care centers located in Gyeonggi Province and were in charge of 5-year olds. The instrument used was a questionnaire measuring the practicing level of the NURI Curriculum. The results of this study were as follows. First, the practicing level of the NURI Curriculum for 5-year olds generally showed high scores. A total average of 3.24 on a 4 scale was found. In each case, educational contents have the highest score, 3.40, and educational evaluation has the lowest score, 3.03. Secondly, teachers' age, teaching career and educational background had an affect on the practicing level of the NURI Curriculum for 5-year olds, but their certificate and institution type did not. That is, the higher the teachers' age, teaching career and educational background, the higher the practicing level of the NURI Curriculum for 5-year olds.