• 한국융합학회논문지
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• 제12권11호
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• pp.445-456
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• 2021

본 연구의 목적은 임상간호사를 대상으로 Maslow의 욕구위계이론에 근거한 5가지 욕구만족이 직무만족과 이직의도에 미치는 영향을 살펴보고, 욕구만족과 이직의도의 관계에서 직무만족의 매개효과를 확인한 융합연구이다. 연구참여자는 서울에 소재한 종합병원의 임상간호사 239명이었다. 수집한 자료는 위계적 회귀분석과 PROCESS Macro (Model 4)를 이용하여 매개효과를 분석하였다. 연구결과, 생리적 욕구와 안전 욕구는 직무만족에 유의한 영향을 미치지 않았고, 소속감 욕구, 존중 욕구 및 자아실현 욕구가 직무만족에 유의한 정적 영향을 미쳤다. 반면, 생리적 욕구와 존중 욕구가 이직의도에 유의한 부적 영향을 미쳤다. 임상간호사의 욕구만족(생리적 욕구, 안전 욕구, 소속감 욕구 및 자아실현 욕구)과 이직의도 간의 관계에서 직무만족의 매개변수가 유의하게 나타났다. 임상간호사의 5가지 욕구만족이 증가하면 직무만족을 매개로 하여 의직의도를 감소시킬 수 있으므로, 간호사의 욕구만족과 직무만족을 효과적으로 관리할 필요가 있음을 논의하였다.

• 문화기술의 융합
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• 제9권6호
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• pp.461-469
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• 2023

우리는 대학생을 대상으로 건강지각, 사회적 지지, 건강증진행위의 관계에서 자기효능감의 매개효과를 파악하고 건강증진행위를 향상시키는데 기초자료를 제공하기 위해 진행하였다. C 도에 소재 대학생 173명을 대상으로 구조화된 설문지를 이용하여 자료 수집하였다. 일반적 특성에 따른 건강증진행위는 성별(t=3.892, p<.001), 전공 만족도(F=5.867, p=.003)에 따라 통계적으로 유의한 차이가 있는 것으로 나타났다. 나이, 학년, 전공계열, 최근 3년간 입원 혹은 수술 경험, 경제활동은 통계적으로 유의한 차이가 없었다. 건강증진행위는 건강지각(r=0.439, p<.001), 사회적 지지(r=.532, p<.001), 자기효능감(r=.533, p<.001)과 양의 상관관계를 나타냈으며 통계적으로 유의하였다. 건강지각이 건강증진행위에 미치는 영향에 있어서 자기효능감이 부분 매개효과(Z=3.964, p<.001)가 있는 것으로 나타났으며 사회적 지지가 건강증진행위에 미치는 영향에 있어서 자기효능감이 부분 매개효과(Z=4.24, p<.001)가 있는 것으로 나타났다. 이에 따라 대학생의 건강지지, 사회적 지지, 자기효능감에 영향을 미치는 요인을 확인하여 건강증진행위를 향상시키는 중재 방안을 마련해야 할 것이다.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2012년도 제43회 하계 정기 학술대회 초록집
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• pp.431-431
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• 2012

A compact tokamak reactor concept as a 14 MeV neutron source is desirable from an economic viewpoint for a fusion-driven transmutation reactor. LAR (Low Aspect Ratio) tokamak allows a potential of high "see full txt" operation with high bootstrap current fractions and can be used for a compact fusion neutron source. For the optimal design of a reactor, a radial build of reactor components has to be determined by considering the plasma physics and engineering constraints which inter-relate various reactor components and are constrained to use ITER physics and technology. In a transmutation reactor, the blanket should produce enough tritium for tritium self-sufficiency and the neutron multiplication factor, keff should be less than 0.95 to maintain sub-criticality. The shield should provide sufficient protection for the superconducting toroidal field (TF) coil against radiation damage and heating effects of the fusion neutrons, fission neutrons, and secondary gammas. In this work, characteristics of transmutation reactor based on LAR tokamak is investigated by using the coupled system analysis.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 1996년도 춘계학술발표회논문집(2)
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• pp.537-542
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• 1996

In the present work the influence of various physical parameters on the two-phase flow behavior in a self-heated porous medium has been studied using a numerical model, that is, the effects of heat generation rate, of porosity, of particle size, and of system pressure on the dryout process. To analyze the effect of these parameters, the variation of both liquid volumetric fraction and liquid axial velocity is evaluated at the steady state or at the onset of a first boiled-out region. The analysis of computational results indicate that a qualitative tendency exists between the parameters such as heat generation rate, porosity, effective particle diameter and the temporal development of the liquid volumetric fraction field up to dryout. In addition to these parameters, a variation of fluid properties such as phase density, phase viscosity due to a change of system pressure can be used for gaining insight into the nature of two-phase flow behavior up to dryout.

• 전자공학회논문지D
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• 제35D권8호
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• pp.31-37
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• 1998

A new self-consistent hole mobility model that includes lattice and hole temeprature has been proposed. By including the lattice and hole temperatures as well as the effective transverse field and the interface fixed charge, the model predicted the saturation of hole drift velocity and showed the effects of coulomb scattering, surface phonon scattering, and surface roughness scattering. The calculated data by the model were compared with the reported experimental data and they were shown to agree quite well. The new model is expected to estimate the characteristics of very short channel devices in the in the hydrodynamic model simulation.

• 영어어문교육
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• 제12권4호
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• pp.117-138
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• 2006

The purpose of this study is to increase students' interest in the subject of English, which has been led by some mannerism, and to improve the students' basic scholastic ability and self-controlled problem solving, through adopting an individualized Web Based Instruction(WBI) as a concrete and practical learning method. In order to achieve this, an individualized Web Based Instruction(WBI) homepage has been developed to be applied experimentally to the field of middle school education for 8 months, and a research has been made on its effects on the students' interest in English along with the improvement of English. Two groups which showed almost the same interest were selected as a controlled group and an experimental one. Individualized Web Based Instruction was applied to the experimental group, while the controlled group was not instructed according to student ability. The controlled group was taught using CD added with the textbook. As a result of T-test, the students in the experimental group showed more improvement in communicative competence than those in the controlled group.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1997년도 춘계학술대회 논문집
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• pp.998-1002
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• 1997

This study has been performed to predict beam absorption with analysis of temperature field by using a FEM in co /sab 2/ laser hardening and to invesrigate into some effects of power density and travel speed of laser beam on the microstructure and hardness of ductile cast iron treated by laser surface hardening technique. Optical micrograph has shown that large martensite and small amount of retained austenite appear in inside hardened zone. Hardness measurement has revealed that the range of maximum hardness value is Hv=415 .+-. 10. The power density increases and the travel speed decreases, the depth of hardened zone increases due to increase of input power density.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 1997년도 추계 학술대회논문집
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• pp.120-125
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• 1997

In the present work the influence of various physical parameters on the two-phase flow behavior in a self-heated porous medium has been studied using a numerical model, that is, the effects of heat generation rate, of porosity, of particle size, and of system pressure on the dryout process. To analyze the effect of these parameters, the variation of both liquid volumetric fraction (i.e., liquid saturation) and liquid axial velocity is evaluated at the steady state or at the onset of a first boiled-out region. The analysis of computational results indicate that a qualitative tendency exists between the parameters such as heat generation rate, porosity, effective particle diameter and the temporal development of the liquid volumetric fraction field up to dryout. In addition to these parameters, a variation of fluid properties such as phase density, phase viscosity due to a change of system pressure can be used for gaining insight into the nature of two-phase flow behavior up to dryout.

• 한국생산제조학회지
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• 제26권2호
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• pp.199-204
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• 2017

In this study, analytical methods for designing a torque arm pin and elastomeric bushings of a conventional-type three-point-suspension gearbox of a wind turbine are investigated. The design loads for the torque arm were derived by considering the effects of the transmitted torque and self-weight of the gearbox. Based on the design loads, design methods for the torque arm pin and elastomeric bushings were introduced in the terms of material and size selection. Finally, a small-scale conventional-type gearbox was designed by applying the derived design methods. This study is an elementary and analytical study for the design of the torque arm pin and elastomeric bushings. It is necessary to verify and supplement the results further through extensive experimentation.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2002년도 추계학술대회 논문집
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• pp.206-209
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• 2002

The fixed abrasive pad(FAP) has been introduced in chemical mechanical polishing(CMP) field recently. In comparison with the general CMP which uses the slurry including abrasives, FAP takes advantage of planarity. resulting from decreasing pattern selectivity and defects such as dishing due to the reduction of abrasive concentration especially. This paper introduces the manufacturing technique of $Al_2$O$_3$-FAP using hydrophilic polymers with swelling characteristic in water and explains the self.texturing phenomenon. It also focuses on the chemical effects on tungsten film and the FAP is evaluated on the removal rate as a function of chemicals such as oxidizer, catalyst, and acid. The removal rate is achieved up to 1000A1min as about 70 percents of the general one. In the future. the research has a plan of the advanced FAP and chemicals in tungsten CMP considering micro-scratch, life-time, and within wafer non-uniformity.