• 재활간호학회지
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• 제14권1호
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• pp.32-38
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• 2011

Purpose: The purpose of this study was to investigate the level of awareness toward disabled persons among nursing students and to identify associating factors for their awareness of disabled persons. Method: 410 nursing students completed the survey on the awareness and frequency of contacts toward disabled persons, self-efficacy, and clinical practice satisfaction. Results: The scores in awareness, contact, clinical practice satisfaction was $50.53{\pm}7.53$, $52.41{\pm}10.61$, $79.21{\pm}10.88$ and $67.04{\pm}9.47$, respectively, indicating. Awareness of disabled persons had significant positive correlations with frequency of contact (p<.001), satisfaction with nursing major (p=.045), satisfaction with clinical practice (p<.001) and self-efficacy (p=.029). Conclusion: To improve awareness of disability, we need to improve student's satisfaction with nursing major and clinical practice by modifying the curriculum. Thereby awareness toward disabled and the weak can improve naturally.

• 한국생산제조학회지
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• 제18권3호
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• pp.321-327
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• 2009

This paper studied the influences of the main design parameter-the expansion angle and the material properties of the self-expansion anterior cruciate ligament fixation device on the contact condition with the bone and the initial stability of the device. Using finite element analysis, the stress distributions of the ring part of the device and the wall of the bone tunnel were calculated. And the micro-migration of the device by the pull-out force was calculated. From the analysis results, it was found that when designing the self-expansion type anterior cruciate ligament fixation device, it is desirable to use the material having higher Young's modulus and to design the fixation device that all wedges uniformly maintain contact with bone to obtain initial stability after operation.

• Journal of Magnetics
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• 제15권3호
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• pp.132-137
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• 2010

Plasma etching of $SiO_2$ contact holes was statistically analyzed by a fractional factorial experimental design. The analysis revealed the dependence of the etch rate and DC self-bias voltage on the input factors of the magnetically enhanced reactive ion etching reactor, including gas pressure, magnetic field, and the gas flow rates of $CHF_3$, $CF_4$, and Ar. Empirical models of the DC self-bias voltage and etch rate were obtained. The DC self-bias voltage was found to be determined mainly by the operating pressure and the magnetic field, and the etch rate was related mainly to the pressure and the flow rates of Ar and $CHF_3$.

• Bulletin of the Korean Chemical Society
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• 제25권10호
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• pp.1531-1537
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• 2004

Twenty four thiol-functionalized ionic liquids based on imidazolium cation, 1-(12-mercaptododecyl)-3-alkylimidazolium salts, have been synthesized, and utilized to investigate the effects of alkyl-chain length and anion on the wettability of Au surfaces on the basis of self-assembled monolayers presenting [(CnSAMIM)X], where n = 1-6, X = Br, $BF_4$, $PF_4$ and $NTf_2$. Water wettabilities of the surfaces were measured as a water contact angle by contact angle goniometry. It was found that water wettability of the Au surfaces coated with imidazolium ions was largely dependent not only on counter anions but also on the length of alkyl chains. In the case of SAMs of N-alkylimidazolium ions having short length of N-alkyl chain (C1-$C_4$), anions played great role in determining water wettability of the surfaces.

• 대한전자공학회논문지
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• 제23권6호
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• pp.741-746
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• 1986

A novel n-p-n bipolar transistor of which emitter is self-aligned with base contact by polyilicon is developed for using in high speed and high packing density LSI circuits. The emitter of this transistor is separated less than 0.4 \ulcorner with base contact by self-aligh technology, and the emitter feature size is less than 3x5 \ulcorner\ulcorner Because the active region of this transistor is not damaged through all the process, it has excellent electric properties. Using the n-p-n transistors by 3.0\ulcorner design rules, a NTL ring oscillator has 380 ps, a CML ring oscillator has 390ps, and a I\ulcorner ring oscillator has 5.6ns of per-gate minimum propagation delay time.

• 한국가정과교육학회지
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• 제22권4호
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• pp.51-64
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• 2010

본 연구는 중학교에 재학 중인 남녀 청소년을 대상으로 성별에 따른 청소년 행동문제의 차이를 살펴보고 개인심리 요인과 가족환경 요인 및 사회환경 요인이 청소년의 행동문제와 어떠한 관련성을 가지고 있는지 파악하고자 하였다. 이러한 연구목적을 위해 기존의 연구와 관련 자료를 참고로 하여 자아존중감, 자기통제력, 부모의 양육행동, 부부갈등, 비행친구접촉, 학교생활적응 그리고 청소년의 행동문제에 관한 척도를 구성하고, 인천광역시에 있는 중학교 2학년 학생 500명을 대상으로 자료를 수집한 후 최종 483부의 설문 자료를 분석하였다. 본 연구에서 얻어진 연구결과를 요약하면 다음과 같다. 첫째, 청소년의 외현화 행동문제에서 성별에 따른 유의한 차이가 나타나지 않아, 남자 청소년과 여자 청소년은 비슷한 수준의 외현화 행동문제를 경험하는 것으로 나타났다. 내재화 행동 문제에서는 성별 차이가 나타나 여학생이 남학생보다 더 높은 수준의 내재화 행동문제를 경험하는 것으로 나타났다. 둘째, 개인심리와 가족환경 및 사회환경 요인이 청소년의 행동문제에 어떠한 영향력을 미치는지를 살펴보면, 남자 청소년과 여자 청소년 모두 자기통제력이 낮을수록 그리고 비행 친구 접촉이 많을수록 더 많은 외현화 행동문제를 경험하는 것으로 나타났다. 특히 여자 청소년은 부부갈등이 심할수록 더 많은 외현화 행동문제를 경험하였다. 또한 남자 청소년은 자기통제력이 낮을수록, 자아존중감이 낮을수록, 부부갈등이 심할수록 그리고 비행 친구 접촉이 많을수록 더 많은 내재화 행동문제를 경험하고, 여자 청소년은 자아존중감이 낮을수록, 비행 친구 접촉이 높을수록 그리고 부모의 양육행동이 적대적일수록 더 많은 내재화 행동문제를 경험하는 것으로 나타났다.

• 한국의류학회지
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• 제36권10호
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• pp.1117-1124
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• 2012

This study was a preliminary study to investigate the influence of surface morphology and characteristics on the self-cleaning of substrates. PI film was treated by $O_2$ plasma to modify the surface; in addition, AFM and Fe-SEM were employed to examine the morphological changes induced on a PI film treated by $O_2$ plasma and surface energies calculated from measured contact angles between several solutions and PI film based on the geometric mean and a Lewis acid base method. The surface roughness of PI film treated by $O_2$ plasma increased with the duration of the $O_2$ plasma on PI film due to the increased surface etching. The contact angle of film treated by $O_2$ plasma decreased with the increased treatment time in water and surfactant solution; in addition, the surface energy increased with the increased treatment times largely attributed to the increased portion on the polar surface energy of PI film. The coefficient of the correlation between surface roughness and surface polarity such as contact angle and surface energy was below 0.35; however, it was over 0.99 for the contact angle and surface energy.

• 대한기계학회논문집A
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• 제26권10호
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• pp.2044-2051
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• 2002

In this paper, the deformed shape, the contact forces and the load-displacement curves of the real hollow gasket made of silicon rubber are analyzed using a commercial finite element program MARC. In the numerical analysis, the silicon rubber is assumed to have the properties of the geometric and material nonlinearity and the incompressibility, and the hyperelastic constitutive relations of that material are represented by the generalized Mooney-Rivlin and Ogden models. The outer frictional contact between the hollow gasket and the groove of rigid container and the inner self-contact of the hollow gasket are taken into account in the course of numerical computation. Experiments are also performed to obtain the material data for numerical computation and to show the validity of the mechanical deformation of the hollow gasket, resulting in good agreements between them.

• Journal of Advanced Marine Engineering and Technology
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• 제31권2호
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• pp.190-196
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• 2007

This paper presents the 3D finite element analysis of the Contact-less Power Supply(CPS) with linear servo motor. The primary, secondary self and leakage inductances of the contact-less power supply and the capacitances of a resonant circuit are calculated by the finite element analysis using current source. The voltage source is used to do accurate analysis of the characteristics of the contact-less power supply. The CPS with the linear servo motor is proposed. The characteristics analysis of the contact-less power supply considering the linear servo motor is done.

• 한국산학기술학회논문지
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• 제22권3호
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• pp.339-351
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• 2021

본 연구에서는 초, 중, 고 학생의 부모-자녀 간 대화 빈도에 대한 인식 차이에 따른 차별적인 특징을 갖는 유형을 탐색하고, 탐색된 유형에 따라 초, 중, 고 학생의 진로개발역량과 학업적 특성에 차이가 있는지 검증하였다. 이를 위해 초·중등 진로 교육 현황조사(2018) 자료를 활용하였으며, 잠재프로파일분석 방법을 사용하였다. 분석 결과, 초, 중, 고 학생의 부모-자녀 간 대화 빈도에 대한 인식 차이는 초등학생 6개 잠재계층(자녀 학교생활 대화 상, 자녀 상-부모 학교 생활 대화 상, 자녀 하-부모 하, 자녀 상-부모 상, 자녀-부모 학교생활 대화 상, 자녀 하-부모 중), 중학생 6개 잠재계층(자녀 하-부모 하, 자녀 중-부모 중, 자녀 상-부모 하, 자녀 상-부모 중상, 자녀 하-부모 상, 자녀 최상-부모 최상), 고등학생 7개 잠재계층(자녀-부모 학교생활 대화 상, 자녀 상-부모 하, 자녀 중-부모 중, 자녀 중-부모 상, 자녀 하-부모 하, 자녀 상-부모 중상, 자녀 최상-부모 최상)이 존재하는 것으로 확인되었다. 그리고 초, 중, 고 모두 잠재계층에 따라 진로개발역량(자기이해와 사회성, 직업이해, 진로탐색, 진로설계와준비도)과 학업적 특성(자율적 학습 동기, 자기주도학습)에 차이가 있는 것으로 나타났으며, 대체로 부모-자녀 모두 대화 빈도가 높다고 인식한 집단과 부모보다 자녀가 인식한 대화 빈도 수준이 높은 집단의 진로개발역량과 학업적 특성 점수가 높은 것으로 확인되었다. 본 연구는 초, 중, 고 학생은 부모와의 대화 빈도를 부모와 다르게 인식할 수 있으며, 이와 같은 인식의 차이가 진로개발역량과 학업적 특성에 영향을 미칠 수 있음을 시사한다.