• 한국건설관리학회논문집
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• 제15권4호
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• pp.58-67
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• 2014

건설교통분야의 국가R&D사업 투자비중은 지속적으로 증가 추세이고, R&D 규모측면에서도 100억원 이상의 중대형 규모의 연구개발사업들이 많이 나타나고 있다. 그러나 국내에서는 지속적인 연구개발투자에도 불구하고 개발된 기술의 사업화가 추진되지 않는 기술 휴면화 현상이 대두되고 있고, 기술개발에 한정되어 있는 R&D사업 범위 확대를 통해 R&D성과를 사업화와 연계시킬 수 있는 방안 마련이 필요하다. 따라서 본 연구는 수익접근법을 이용한 기술가치 평가를 현재 진행 중인 연구사업에 대하여 기술가치 평가를 수행하여, 특허기술의 가치를 금액으로 산정하여 기술실시계약시 합리적이고 객관적인 기술거래 기준가격과 사업화 전략 등을 제시하였다. 해당 기술수명 기간 동안 창출 가능한 잉여현금흐름(FCF) 합계액(사업가치)은 할인율 16.34%를 반영하여 현재가치로 환산할 경우 512백만 원이 산출되었고, 해당 사업가치에 산업기술 요소법을 통해 구해진 기술기여도 44.39%를 적용한 결과 기술가치는 227백만 원으로 도출되었다. 이렇게 도출 기술가치 평가를 기반으로 기술의 사업화 및 상용화 전략수립이 필요하고, 이에 대한 사업화 요건과 마케팅 전략 등의 연구가 추후 추진될 필요가 있다.

• 한국건설관리학회논문집
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• 제23권6호
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• pp.30-42
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• 2022

OSC는 기획, 설계, 시공, 유지보수 등의 건설생산 전 과정에 걸친 공급망과 가치사슬의 한 유형으로 건설현장이 아닌 공장 등 제 3의 장소에서 제작한 후 현장으로 운반하여 설치 및 시공하므로써 최종 목적물을 생산하는 방식이다. 본 연구에서는 PC공법 및 RC공법을 적용한 공동주택 사례를 각각 1개에 대하여 공사비를 비교하였다. PC공법 적용(PC설계비 제외)의 경우 RC공법만 적용하는 경우에 비해 골조 단위물량(m³)당 골조공사비가 약 70% 내외로 증가(RC 공종 합계 기준 50%)함을 도출하였다. PC공법 적용 사례 전체 골조 공사비 중 PC비중이 90.2%로 'PC제작비'가 54.8%, 'PC조립' 28.5%, '운반'이 6.89%를 차지하여, PC제작 및 조립 부문에서 비용 절감 노력이 필요할 것으로 판단하였다. 또한, 비용과 편익을 함께 고려할 수 있는 의사결정 프레임워크 초안을 구축하였다. 편익의 경우 OSC 기술적 장점이 반영된 공사기간, 하자보수, 재해발생, 에너지효율, 소음/분진/폐기물, 온실가스 배출 지표를 제시하였다. OSC기반 PC 공동주택 도입 의사결정을 지원하기 위한 적용 효과 근거를 마련하는데 기여할 수 있을 것으로 판단된다.

• Archives of Plastic Surgery
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• 제47권5호
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• pp.428-434
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• 2020

Background Three-dimensional (3D) model printing improves visualization of anatomical structures in space compared to two-dimensional (2D) data and creates an exact model of the surgical site that can be used for reference during surgery. There is limited evidence on the effects of using 3D models in microsurgical reconstruction on improving clinical outcomes. Methods A retrospective review of patients undergoing reconstructive breast microsurgery procedures from 2017 to 2019 who received computed tomography angiography (CTA) scans only or with 3D models for preoperative surgical planning were performed. Preoperative decision-making to undergo a deep inferior epigastric perforator (DIEP) versus muscle-sparing transverse rectus abdominis myocutaneous (MS-TRAM) flap, as well as whether the decision changed during flap harvest and postoperative complications were tracked based on the preoperative imaging used. In addition, we describe three example cases showing direct application of 3D mold as an accurate model to guide intraoperative dissection in complex microsurgical reconstruction. Results Fifty-eight abdominal-based breast free-flaps performed using conventional CTA were compared with a matched cohort of 58 breast free-flaps performed with 3D model print. There was no flap loss in either group. There was a significant reduction in flap harvest time with use of 3D model (CTA vs. 3D, 117.7±14.2 minutes vs. 109.8±11.6 minutes; P=0.001). In addition, there was no change in preoperative decision on type of flap harvested in all cases in 3D print group (0%), compared with 24.1% change in conventional CTA group. Conclusions Use of 3D print model improves accuracy of preoperative planning and reduces flap harvest time with similar postoperative complications in complex microsurgical reconstruction.

• 해양환경안전학회지
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• 제28권5호
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• pp.764-772
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• 2022

해운·항만 산업분야는 전통적으로 남성 중심으로 운영되어 온 산업으로, 여성 해기사의 진출 범위가 늘어나고 있지만 여전히 여성 종사자의 비율은 낮은 수준이다. 그러나 본 산업분야의 여성들이 겪는 진로발달 상의 어려움을 설명하고 이를 개선하기 위해 개인이 속한 사회문화적 맥락이나 환경적 요인을 포괄적으로 설명할 수 있는 진로장벽 및 진로결정수준에 대한 연구가 아직 수행되지 않고 있는 실정이다. 이에 따라 본 연구는 M대학교 해사대학에 재학 중인 여학생들을 대상으로 진로장벽 요인을 도출하고, 진로장벽이 진로결정수준에 어떠한 영향을 미치는지를 조사였다. 해사대학 여학생들이 인식하는 진로장벽 요인으로 성차별(GD), 진로 미결정 및 준비 부족(IOU), 직장-가정 갈등(WFC), 개인특성 부족(LPQ), 기대보다 낮은 직업 전망(LOE)이 도출되었다. 도출된 진로장벽 요인이 진로결정수준에 어떤 영향을 미치는지를 분석한 결과, 진로 미결정 및 준비 부족(IOU)이 진로결정수준에 유의한 부의 영향을 미치는 것으로 나타났다. 성차별(GD), 직장-가정 갈등(WFC), 개인특성 부족(LPQ), 기대보다 낮은 직업 전망(LOE)은 진로결정수준에 유의한 영향을 미치지 않는 것으로 나타났다. 본 연구를 통해 도출된 결론은 진로장벽을 극복하고 진로결정수준을 향상시키기를 원하는 해사대학 여학생들을 대상으로 하는 진로지도 및 상담을 위한 중요한 자료로 활용될 수 있을 것이다.

• Korean Journal of Radiology
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• 제22권11호
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• pp.1749-1763
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• 2021

Coronary computed tomography angiography (CCTA) is routinely used for anatomical assessment of coronary artery disease (CAD). However, invasive measurement of fractional flow reserve (FFR) is the current gold standard for the diagnosis of hemodynamically significant CAD. CT-derived FFRCT and CT perfusion are two emerging techniques that can provide a functional assessment of CAD for risk stratification and clinical decision making. Several clinical studies have shown that the diagnostic performance of concomitant CCTA and functional CT assessment for detecting hemodynamically significant CAD is at least non-inferior to that of other routinely used imaging modalities. This article aims to review the current clinical evidence and recent developments in functional CT techniques.

• Journal of Information Technology Applications and Management
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• 제25권3호
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• pp.29-41
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• 2018

The purpose of constructing university information system is for improvement in diversification and throughput of information, streamlines business processes, rapid exchange of information, sharing of information, decision-making information, and securing educational facilities. Similar to business information technology system, university information system does not have a review system for sharing and overlapping investment of information. Due to the lack of project management for outsourcing and vulnerability of system suitability, system audit is absolutely needed for the university information system. This paper especially focuses on an operational phase in the audit of university information system. Additionally, we proposed operating model and checklists of the university information system based on Management Guidelines of ITIL V3 Operational and Information System. We derived the checklists of operation audit by each domain of service strategy, service design, service transition, service operation, and continual service improvement. As the result, this study appear to have more than average satisfaction the suitability results were.

• 대한기관식도과학회지
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• 제19권1호
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• pp.11-14
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• 2013

Gastro-esophageal reflux disease (GERD) is a recurrent, long-term gastrointestinal condition characterised by the abnormal reflux of stomach contents into the esophagus. Heartburn is the most dominant symptom, which can be life long and can considerably reduce quality of life. The main goals of treatment are to alleviate symptoms and prevent relapses, esophageal stricture and adenocarcinoma. This paper presents a review comparing the effectiveness of omeprazole with Nissen fundoplication surgery for the treatment of GERD. Nissen fundoplication is more effective in controlling heartburn symptoms, healing esophagitis and preventing relapses than omeprazole. Quality of life, in terms of productivity and ability to work, is difficult to assess in the omeprazole group and, as a result, a comparison of this aspect is limited. Although fundoplication is expensive in the short term, it is more cost-effective than omeprazole. Nurses need to be aware of the effectiveness of omeprazole and fundoplication to provide patients with accurate information, which assists patients in decision making regarding treatment options.

• 경영과정보연구
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• 제5권
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• pp.81-101
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• 2000

The purpose of this comparative study is to compare and evaluate venture business of electronic and communication industry by Data Envelopment Analysis(DEA). DEA is a linear programming-based technique that converts multiple input and output measures into a single comprehensive measures of productive efficiency. In this paper, the CCR model and trend analysis model are used to examine the efficiency of 18 venture business. Input variables are number of employees. raw-material costs and production capability and output variables are real production, sales revenues and net income after taxes. DEA approach broad information like as efficiency level of each Decision Making Unit(DMU), reference group of efficiency improvement and trends of efficiency shift. Finally, the correlation of input and output variables are examined to examine the relationship among variables.

• Nuclear Engineering and Technology
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• 제50권4호
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• pp.619-626
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• 2018

Most publications confirm that an ecological interface is a very efficient tool to supporting operators in recognition of complex and unusual situations and in decision-making. The present article describes the experience of implementation of an ecological interface concept for visualization of material balance in a drum separator of RBMK-type NPPs. Functional analysis of the domain area was carried out and revealed main factors and contributors to the balance. The proposed ecological display was designed to facilitate execution of the most complicated cognitive operations, such as comparison, summarizing, prediction, etc. The experimental series carried out at NPPs demonstrated considerable reduction of operators' mental load, time of reaction, and error rate.

• 대한건축학회논문집:구조계
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• 제36권2호
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• pp.175-180
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• 2020

The purpose of this study was to clarify precautions during the design and operation phases for energy reduction in a public office building. To check the operation status of the building, we measured the indoor temperature and humidity in the office space of the building installed central heating and cooling systems. And we analyzed these data and annual BEMS data. As a result, we found six problems related to decreasing system efficiency. Based on these, we presented the information to improve the efficiency of the system from the design and operation phase. Also, we present the need for a system to support the decision-making of operational managers in real-time for the energy efficiency of the building.