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초등학생의 과외 자율 스포츠활동참가가 정서발달에 미치는 영향
정의권(Jeong Ui Gwon),김형균(Kim Hyeong Gyun) 한국사회체육학회 2003 한국사회체육학회지 Vol.20 No.1
The purpose of this study is to analyze the influence of the participation in leisure sports activities of elementary students on emotional development. To accomplish the purpose of this study, the 441 subjects were selected using the random sampling method from students who study at elementary school in Seoul, in 2002. The Survey questionaries were used to collect data. The questionaries for emotional development was emotionally handicapped scale and fear scale developed by Abrahamse(1970) and standardized in Korean language by Kang, Han-Kyung(1996). The statistical analysis methods utilized in this study for analyzing the collected data are descriptive, one-way ANOVA, analysis of covariance(ANCOVA). From the analysis of this study, the follwing conclusions were obtain: Firstly, emotional development of elementary school students are partially different by gender, grade. Secondly, emotional development are partially different by the participation in the sports activities. In detail, the participants in leisure sports activities are more emotional development than non-participants that. Thirdly, emotional development are partially different by types of the participation in leisure sports activities. In detail, the participants in the sports activities are more emotional development than non-participants on emotional development of pure, fear, avoidance, affection, sociability, aggression.
정의효(Ui-Hyo Jeong),형재필(Jae-Phil Hyung),임성용(Seong-Yong Lim),임홍우(Hong-Woo Lim),장중순(Joong-Soon Jang) 한국신뢰성학회 2014 신뢰성응용연구 Vol.14 No.3
Electrodeless lamp is famous for its long life. But its reliability is dependent not only on electrodes but also on materials and structures. To evaluate end product’s reliability, we studied high temperature durability by 60℃, 75 ℃ and 90 ℃ temperature tests, and predicted failure times by an exponential model through regression analysis. However, the test showed that temperature does not affect degradation of electrodeless lamps. Their luminous outputs degrade during the early time of the test (till 250 hours) and then converge to a saturation points. Also, ‘410nm ~ 530nm’ spectrum degrades more than other spectra.
고분자캐패시터에 대한 충방전 조건에서의 온도에 따른 정전용량감소 특성 연구
정의효(Ui-Hyo Jeong),임홍우(Hong-Woo Lim),형재필(Jae-Phil Hyung),고민지(Min-Ji Ko),정창욱(Chang-Uk Jung),조정하(Jeong-Ha Cho),장중순(Joong-Soon Jang) 한국신뢰성학회 2017 신뢰성응용연구 Vol.17 No.1
Purpose: Polymer capacitors are known to have very high reliability as compared with liquid electrolytic capacitors, but their capacity has been reported to decrease in charge and discharge at low temperature. The purpose of this study to clarify these characteristics. Methods: In order to clarify these characteristics, charging-discharging tests were carried out for 200 hours with three different capacities and at 5 different temperature from 5℃ to 100℃. Results: As a result of the test, it was confirmed that the capacity of the polymer capacitor was decreased with higher capacity and lower temperature. Conclusion: Such a failure phenomenon was caused by the shrinkage and expansion characteristics of the polymer used therein, it is presumed that this failure phenomenon is due to the complex pore structure made by etching.
일반인들의 모발손상에 대한 자가 인식과 관리방법에 대한 조사
정의성 ( Ui Seong Jeong ),김기영 ( Ki Young Kim ) 한국미용학회 2007 한국미용학회지 Vol.13 No.2
Function of hair is a protection and decoration. Damage of both functions could be induced by various factors such as chemical, physical, environmental exposure and physical aging. In this study, a self recognition of hair damage and it`s care were searched in 230 men and women. A questionnaire is divided to 3 sections that include 22 questions(general character: 8, characterization of hair: 11, recognition of scalp treatment: 7), and 197 questionnaires from 230 were used for statistical calculation by SPSS(statical package for the social science) 12.0 program and Chi-square verification. In the result, most of women are used a normal shampoo for hair cleansing, but men are used a functional shampoo. Men(80.4%) and women(49.3%) are answered that ``hair cut`` is favorite care and services in hair salon. And 10(47.2%) and 20(39.5%) age group are convinced that hair of them is damaged. And 72.3% of 10-50 age groups have regarded that ``bleaching and coloring`` were a factor of hair damage. Only 12% of 197 people had a ``experience of hair treatment and sculp care``. A obstacles factor of no experience was expansive cost and insufficient time. 73% of 197 people would be payed about 30, 000 won for one time hair treatment and sculp care. And younger people have preferred to sculp care center than old people. In conclusion, many peoples may be known a factor of hair damage(coloring or perm wave) and a necessary of hair treatment and sculp care. And it must be informed that hair salons is the most suitable place for hair and sculp care center.
정의중 ( Jeong Ui Jung ),윤정신 ( Yun Jeong Sin ),김성희 ( Kim Seong Hui ),황진석 ( Hwang Jin Seog ),김선영 ( Kim Seon Yeong ),신상훈 ( Sin Sang Hun ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.5
Parovarian cysts constitute 10% of adnexal masses. They were found in broad ligament and mostly arise from mesothelium and less commonly from paramesonephric element and rarely from mesonephric element. In most cases parovarian cysts were asymptomatic. So, they were found incidentally at surgery for other conditions. Torsion is infrequent and it is difficult to distinguish it from torsion of other adnexal masses, appendicitis, etc. Recently, we experienced a voluminous parovarian cyst undergoing torsion, 25㎝ in diameter. The case is presented with a review of literature.
Aminoalkyl-bis-phosphonic acid 유도체의 연소특성
진의(Jin, Ui),정의형(Jeong, Ui-Hyeong),안성준(An, Seong-Jun),오정규(O, Jeong-Gyu),정영진(Jeong, Yeong-Jin) 한국화재소방학회 2013 한국화재소방학회 학술대회 논문집 Vol.2013 No.춘계
새로운 알킬렌디아미노알킬-비스-포스포닉산 유도체인 3종을 합성하고, 그들의 연소특성을 측정하였다. 알킬렌디아민 및 알데히드에 아인산을 첨가하여 한 단계로 반응시켜 91.3~97.3%의 수득률을 얻었다. 연소특성은 육송에 화합물을 도포한 후 콘칼로리미터(ISO 5660-1)를 이용하여 측정하였다. Heat flux는 25kW로 고정하였다. 시험결과 착화시간은 육송에 비해 51s~83s 정도 지연되었으며 착화시간이 지연 될수록 최대 열방출율이 증가하는 경향을 나타내었다.