• 한국응급구조학회지
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• 제26권3호
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• pp.71-91
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• 2022

Purpose: This study aimed to provide baseline data for implementing advanced life-support for 119EMTs. This is done with an in-depth examination of the emergency care experiences of the 119EMTs on-site and during transportation. Methods: Interviews were conducted with twelve 119EMTs, and the data were analyzed using the phenomenological method. Results: The 34 topics had 19 sub-components and were analyzed according to seven categories: 'A work environment where you cannot focus only on emergency care on-site and during transportation', '119EMTs struggling with manpower shortage', 'Current status of education blocking the upward standardization of 119EMT', 'Implementation of professional emergency care was held back due to the limited legal scope of 119EMT', 'Medical oversight makes it difficult to implement emergency care due to low flexibility', '119EMTs who cannot choose hospital selection and find it difficult to receive help', 'An evaluation system not reflecting reality at all that only leaves high scores'. Conclusion: This study was undertaken to implement specialized emergency care for 119EMTs; not only the necessity of reviewing the expansion of the work scope of 119EMTs but also the necessity of effective 'Medical Oversight system' reorganization raised as well.

• 한국콘텐츠학회논문지
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• 제17권6호
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• pp.661-671
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• 2017

본 연구의 목적은 교육부 유치원 안전교육 7대 표준안에 대해 유아교사가 인식하는 중요도와 실행도의 차이를 비교, 분석하고 유아교육현장에서 바람직한 안전교육을 위해 우선적으로 지원할 항목과 장기적 개선이 요구되는 항목을 살펴보는데 있다. 이를 위해 유치원 교사를 대상으로 설문조사를 실시하였으며, 유치원 안전교육 표준안의 중요도와 실행도 차이를 분석하기 위해 평균, 표준편차, 대응표본 t-검정을 실시하였고, 우선적 지원과 장기적 지원 및 개선의 필요성을 분석하기 위해 '중요도와 실행도(Importance-Performance Analysis: IPA) 매트릭스' 분석방법을 실시하였다. 연구결과, 유아교사들이 인식하는 교육부 유치원 안전교육 7대 표준안의 중요도와 실행도는 모든 영역과 항목에서 차이가 있는 것으로 나타났다. 유치원 현장에서 바람직한 안전교육을 위해 우선적으로 지원되어야 할 영역과 항목은 '폭력 및 신변안전' 영역의 2개 항목, '약물 및 사이버 중독' 영역의 1개 항목으로 나타났다. 또한 장기적 개선이 요구되는 영역과 항목은 '응급처치' 영역의 6개 항목, '폭력 및 신변안전' 영역의 1개 항목', '직업안전' 영역의 3개 항목, '약물 및 사이버 중독' 영역의 3개 항목', '재난 안전' 영역의 1개 항목으로 나타났다.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2010년도 추계학술대회 초록집
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• pp.114.1-114.1
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• 2010

A highly performed Pd-based hydrogen membrane has prepared successfully on a modified porous nickel support. The porous nickel support modified by impregnation method of $Al(NO_3)_3{\cdot}9H_2O$ (Aldrich Co.) over the nickel powder showed a strong resistance to hydrogen embrittlement and thermal stability. Plasma surface modification treatment was introduced as a pre-treatment process instead of conventional HCl wet activation. Ceramic barrier was coated on the external surface of the prepared nickel supports to prevent intermetallic diffusion and to enhance the affinity between the support and membrane. Palladium and copper were deposited at thicknesses of $4\mu}m$ and $0.5{\mu}m$, respectively, on a barrier-coated support by DC sputtering process. The permeation measurement was performed in pure hydrogen at $400^{\circ}C$. The single gas permeation of our membrane was two times higher than that of the previous membrane which do not have ceramic barrier.

• 한국가족관계학회지
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• 제23권3호
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• pp.153-175
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• 2018

Objectives: The purpose of this study is to examine the effects of care burden among mothers of children with developmental disabilities on depression and the moderating effects of formal and informal social support. Method: The self-report questionnaires were administered to 200 mothers of children with developmental disabilities (aged 6~20 years) in pre-adulthood in Gyeongi-do. A hierarchical regression analysis was conducted. Result: First, There is a need to provide a mental health program that can relieve depression. Second, Individualized intervention strategies for mothers' psychological counseling and support programs for intensive case management and parenting stress management programs are needed. Third, Individual visit case management is required. In addition, it is necessary to expand the eligibility for care services and to maintain long-term programs. Conclusion: The findings suggested that there is a need to provide mothers with not only personal assistance program but also services such as mothers' psychological counseling, peer mentor program, and parenting stress management.

• Structural Engineering and Mechanics
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• 제38권2호
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• pp.171-193
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• 2011

One of the possible alternatives of simulation-based time-dependent reliability assessment of pre-stressed biconcave and biconvex cable trusses, the Monte Carlo method, is applied in this paper. The influence of an excessive deflection of cable truss (caused by creep of cables and rheologic changes) on its time-dependent serviceability is investigated. Attention is given to the definition of the basic random variables and their statistical functions (basic, mutually dependent random variables such as the pre-stressing forces of the bottom and top cable, structural geometry, the Young's modulus of elasticity of the cables, and the independent variables, such as permanent load, wind, snow and thermal actions). Then, the determination of the response of the cable truss to the loading effects, and the definition of the limiting values considering serviceability of the structure are performed. The potential of the method, using direct Monte Carlo technique for simulation-based time-dependent reliability assessment as a powerful tool, is emphasized. Results obtained by the First order reliability method (FORM) are compared with those obtained by the Monte Carlo simulation technique.

• 예술인문사회 융합 멀티미디어 논문지
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• 제7권10호
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• pp.91-101
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• 2017

예비창업자 및 스타트업을 지원하고 활성화하기 위한 국가차원의 제도적·정책적 지원이 강화되고 있다. 그러나 이들은 창업준비 과정에서 필요한 정보의 부족으로 어려움을 겪고 있는 것으로 나타났다. 예비창업자 및 스타트업이 보다 체계적이고 견실한 창업 진행 과정을 거치도록 콘텐츠나 서비스 측면에서 지원하기 위해서는, 그들의 정보요구 및 정보이용행태를 면밀히 분석할 필요가 있다. 정보이용행태 분석은 도서관 정보서비스 기관에서 학술정보 이용자의 정보요구에 맞추어 해당 정보서비스의 개선을 위해 활용하는 방법이다. 본 연구에서는 예비창업자 및 스타트업을 대상으로 정보이용행태를 분석하였다. 정보이용행태를 조사하기 위한 대표적인 기법인 집단심층면접조사를 예비창업자와 스타트업을 대상으로 실시하였으며, 콘텐츠 분석을 통해 이들의 창업 진행 과정, 창업 정보 탐색 현황, 창업 정보원 활용 수준 및 인식을 조사하였다. 이들의 정보이용행태를 반영하여 창업지원 기관 및 프로그램의 콘텐츠와 서비스를 개선할 수 있을 것으로 기대한다.

• 한국정밀공학회지
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• 제10권4호
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• pp.236-247
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• 1993

An davanced method for the automatic generation of parametric models in computer- aided design systems is required for most of two-dimensional model which is represented as a set of geometric elements, and constraining scheme formulas. The development system uses geometric constraints and support of topology parameters from feature recognition and grouping the design entities into optimal ones from pre-designed drawings. The aim of this paper is to present guidelines for the application and development of parametric design modules for the standard parts in mechanical system, the basic constitutional part of mold base, and other 2D features.

• Industrial Engineering and Management Systems
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• 제9권1호
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• pp.41-53
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• 2010

An existing risk diagnosing methodology (RDM) diagnoses corporate risk for product-innovation projects. However, it cannot evaluate and compare the risk levels of multiple alternatives in the product development stage. This paper proposes a modified risk diagnosis method to fill the gap of risk evaluation in selections of innovative product alternatives and the application of the method will be also illustrated by a case problem on alternative selections in electrical dimmer designs. With RDM as the foundation, a modified RDM (MRDM) is proposed to deal with the problem of selecting innovative project alternatives during the early stages of product development. The Bayesian network; a probabilistic graphical model, is adopted to support the risk pre-assessment stage in the MRDM. The MRDM is proposed by incorporating the risk pre-assessment stage into the foundation. By evaluating the engineering design risks in two electrical dimmer switches, an application of the MRDM in product innovation development is successfully exemplified. This paper strengthens the existing methodology for RDM in innovative product development projects to accommodate innovative alternatives. It is advantageous for companies to identify and measure the risks associated in product development so as to plan for appropriate risk mitigation strategies.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2000년도 봄 학술발표회 논문집
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• pp.101-108
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• 2000

In this study, an expert system was developed to predict the safety of tunnel and choose proper tunnel reinforcement system using fuzzy quantification theory and fuzzy inference rule based on tunnel information database. The expert system developed in this study have two main parts named pre-module and post-module. Pre-module decides tunnel information imput items based on the tunnel face mapping information which can be easily obtained in-situ site. Then, using fuzzy quantification theory II, fuzzy membership function is composed and tunnel safety level is inferred through this membership function. The comparison result between the predicted reinforcement system level and measured ones was very similar. In-situ data were obtained in three tunnel sites including subway tunnel under Han river, This system will be very helpful to make the most of in-situ data and suggest proper applicability of tunnel reinforcement system developing more resonable tunnel support method from dependance of some experienced experts for the absent of guide.

• 대한기계학회논문집A
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• 제30권3호
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• pp.349-355
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• 2006

The gas turbine components is used on high temperature conditions which under severely circumstance with start-up and stop several times. Therefore, it is used nickel-base superalloys like and GTD-111DS. Damaged buckets on the t긴ade tip during operating are repaired per 24,000 hr to three times according to repair specification of manufacture. It is applied pre-heat, HIP(hot isostatic pressing) and post-heat treatment to support welding repair on blade tip effectively. On this study, It is utilize of $WRAP^{TM}$ (welding repair advanced process) method to make tension test specimens for this study, And then, material strength and characteristic for GTD-111DS was analyzed.