• 공학교육연구
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• 제17권2호
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• pp.11-24
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• 2014

The purpose of this study is to develop a teaching-learning model of convergence project based on team teaching. Based on development research methodology which explored a university case, the teaching-learning model was developed including three phases such as preparation, planning, and implementation & evaluation. The preparation phase has three steps as follows: to organize team teaching faculty; to develop convergence projects cooperated by industry and university; and to design instructions based on supporting convergence projects. The last step of preparation phase consists of five design activities of: (1) instructions and teaching contents; (2) communication channel among faculty members; (3) feedback system on students' performance; (4) tools to support learners' activity; and (5) evaluation system. The planning phase has two steps to analyze learners and to introduce and modify instruction and themes of convergence projects. The implementation & evaluation phase includes five steps as bellow: (1) to organize project teams and match teams with faculty members; (2) to do team building and assign duties to students of a team; (3) to provide instruction and consulting to teams; (4) to help teams to conduct projects through creative problem solving; and (5) to design mid-term/final presentation and evaluation. Lastly, the research implications and limitations were discussed for future studies.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.1015-1018
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• 2007

VE는 여러 산업분야에서 지속적으로 요구되는 개선 목표를 달성하고 제한된 건설예산을 보다 효과적으로 관리하기 위해 사용되어온 체계화된 절차를 말한다. VE의 업무절차 중 준비단계의 주요 목적은 원활한 VE수행을 위하여 관련된 집단의 협력체계 구축과 공동목표 달성을 통하여 분석단계에서 요구되는 충분한 자료를 확보하는데 있다. 그리고 사용자 및 발주자 등 프로젝트 이해당사자들의 요구를 측정하는 데는 주로 품질모델(Quality Model)이 사용되며, 이러한 품질모델은 VE활동 시 대안이 발주자의 요구에 적합한지를 확인할 수 있는 평가척도로 활용된다. 하지만, 현행 준비단계 업무는 단순히 발주자 및 사용자의 요구사항을 확인하는 수준이며, 이를 통해서 대상선정 및 기능분석 단계의 명확한 목표 및 방향제시를 해주지 못하고 있다. 이에 본 연구에서는 사례분석과 전문가 설문조사 및 면담조사를 실시하여 현행 준비단계 업무의 문제점을 분석하고, 각 주체별 요구항목을 정확히 파악하여 새로운 대상선정 모델을 제안하고자 한다.

• 한국건설관리학회논문집
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• 제9권4호
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• pp.111-119
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• 2008

VE는 대상 시설물의 가치향상을 위하여 설계내용에 대한 경제성 및 현장적용 타당성을 기능별, 대안별로 검토하는 체계화된 절차를 말한다. VE의 업무절차 중 준비단계의 주요 목적은 원활한 VE수행을 위하여 관련된 집단의 협력체계 구축과 공동목표를 달성하기 위하여 분석단계에서 요구되는 충분한 자료를 확보하는데 있다. 그리고 사용자 및 발주자 등 프로젝트 이해당사자들의 요구사항을 측정하는 데는 주로 품질모델(Quality Model)이 사용되며, 이러한 품질모델은 VE활동 시 대안이 발주자의 요구사항에 적합한지를 확인하는 평가척도로 활용된다. 하지만, 현행 준비단계 업무는 단순히 발주자 및 사용자의 요구사항을 확인하는 수준이며, 이를 통해서 대상선정 및 기능분석단계의 명확한 목표 및 방향을 제시해주지 못하고 있다. 이에 본 연구에서는 사례분석과 전문가 설문조사 및 면담조사를 실시하여 현행 준비단계 업무의 문제점을 분석하고, 각 주체별 요구항목을 정확히 반영한 새로운 대상선정 모델을 제안하고 사례를 통해 효용성을 검증하였다.

• 천문학회보
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• 제38권1호
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• pp.67.2-67.2
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• 2013

The GMT project is in its final stage of Design Development Phase in 2013, moving toward the Construction Phase planned to begin on Jan. 1st, 2014. In this contribution, we present the current status and progress of the GMT project including selection of the first generation instruments, development of primary mirror segments, site preparation, and science case revision along with plans for 2013 when the preparation of construction phase will be made.

• Nuclear Engineering and Technology
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• 제55권3호
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• pp.1118-1124
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• 2023

Experimental study on the fluidelastic instability (FEI) of a curved tube bundle in single phase downward cross flow is investigated for the design qualification and analysis input preparation of helical coiled steam generator tubing. A 6×9 normal square curved tube array with equal and different vertical/horizontal pitch-to-diameter ratio was under-tested up to 6 m/s in term of gap flow velocity to measure the critical velocity for FEI. The critical velocity for FEI was measured at the turning point from the vibration amplitude plot along the gap flow velocity. Our test results were compared with straight tube results and published data in the design guideline. The applicability of the current design guidelines to a curved tube bundle is also assessed. We found that introducing frequency difference in a curved tube array increases the critical velocity for fluidelastic instability.

• 약학회지
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• 제47권3호
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• pp.154-158
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• 2003

Lincomycin, a selective tyrosinase blocker, has been thought to be effective in the treatment of melanogenesis, ephelis, post inflammatory pigmentation, and facial discoloration. In an attempt to develop a transdermal perparation for lincomycin, this study was designed to examine the appropriate contents of various surfactants and ethanol in the cream preparation. Frans type diffusion cell was used to investigate permeation efficiency of the preparation, and lincomycin in the receptor phase was measured by HPLC. After having a 1.5 hrs of leg time, the permeability of lincomycin was rapidly increased by adding surfactants, and varied with different types of surfactants after 10 hrs, the permeability of Brij 56$^{(R)}$ preparation (501.4$\pm$45 $\mu\textrm{g}$/mι) was greater than that either of Labrasol$^{(R)}$ (263.9$\pm$33.7 $\mu\textrm{g}$/mι) or Tween$^{(R)}$20(386.2$\pm$26.7 $\mu\textrm{g}$/mι). Ethanol also increased the permeability of lincomycin.mycin.

• 천문학회보
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• 제38권2호
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• pp.81.1-81.1
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• 2013

The GMT project is moving ahead smoothly and is approaching the construction phase expected to begin around mid 2014. In this contribution, we will introduce the status of activities being made for the preparation of construction phase, including the Preliminary Design Review of sub-systems, the casting of primary mirror segments, and the GMT retreat.

• 한국농촌건축학회논문집
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• 제24권3호
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• pp.59-66
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• 2022

This study aims to find out how architectural designers applied the design process and what content is applied in the practical process of architectural design in Korea, and to improve it if there is a problem. So the study is carried out by investigating 13 architects(Including one person who wants to keep his work private) with extensive experience in architectural design. The architects were questioned on how and what content the design process was used for their representative works that had been designed. And interviews and field surveys were conducted on other matters to be improved. The survey was conducted from November 2021 to July 2022. According to the conclusion of this study, First, Most architects were applying the design process in the architectural design practice. These are caused by an impact on education, but there was also an aspect of preparation in terms of guidelines such as the Architects Association and storage rights. Second, Although the design process differed in each name and phase, it was generally carried out in the order of the start phase, the planning work phase, the basic design phase, the intermediate design phase, the implementation quarterly, and construction. Third, The step-by-step work of the design process differed slightly depending on the architect, but counseling and contract work were mainly performed at the start-up phase, and field surveys, legal investigations, and case studys were conducted at the planning phase. In the basic design phase, some contents related to architectural programming, basic drawings, images, and models were used as main work contents. In the intermediate design phase, secondary contents such as licensed books and facility facilities were the main tasks. In the implementation design phase, detailed maps and various frost facilities were finally inspected. Since then, construction and supervision have been carried out in the order of progress. Forth, As for the contents to be improved in the future, the architect's ability, the designer's knowledge of the overall architecture, the design supervision system, and the expansion of time for the initial design process were answered.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 1990년도 추계학술대회 논문집
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• pp.31-35
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• 1990

In the ($Bi_{1-x}Pb_{x}$)$_2$$Sr_2$$Ca_2$$Cu_{3.6}$$O_{y}$ (x=0∼0.5) superconductors, DTA and XRD-pattern analyses were performed to obviousely define optimal calcining and sintering temperature. And, understanding behaviors of High-Tc phase with preparation condition of superconductors, that is, calcining and sintering temperature, sintering time, and variation of Pb contents, in order to make single phase of superconductor, microstructure and its composition were analyzed with SEM, XRD, and EDAX. continuously, the cause of phase transition was define with synthetically studying mutural relation between measured electrical resistivity and current density. Also, in order to design enhancement of critical current density, Jc required for realization, samples varied with pressing condition were made, and measured its, Jc.

• 대한안전경영과학회지
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• 제16권1호
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• pp.69-77
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• 2014

The environment and requirements of modern war fields have been affected and thus changed by a variety of issues. To this end, the development of safety-critical weapon systems frequently need to meet those changes even in the operational phase. The necessity of the changes may be due to the preparation for mass-production or the request originated from the user military forces. To meet such a need can be even tougher in the development of safety-critical weapon systems since the integration of the requirements for both systems design and systems safety would make it troublesome. To handel the matter in this paper, utilization of architecture DB is proposed. Specifically, the situation in demand has first been analyzed and then a problem-solving process to accommodate the design changes has been constructed. In doing so, the concept of the aforementioned integration is particularly focused on the functional architecture, which could be a core concept of our approach to solving the problem. The result of a case study demonstrating the method studied using a computer-aided systems engineering tool is also presented.