• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제26권2호
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• pp.71-79
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• 2020

Purpose: The purpose of this study is to derive basic data for desirable location and functions of the integrated care center. Methods: Survey, Questionaire and statistical analysis are the main research method of this study. In order to collect data related to utilization pattern and favorite functions of the senior people, researchers have visited 4 social welfare facilities located in Southern Gyeonggi Province. 403 questionaires have been gathered from 4 facilities and they have been analyzed by using Excel Program of MS. Results: First, compared to other services, healthcare services have been preferred by many older people in Social welfare Facilities. This means that integrated care centers providing healthcare services for older people rather than services for children or disabilities is desirable. Second, Integrated Care Centers had better be established within the walk distance of elderly people. If it is not easy, the introduction of shuttle bus for older people is desirable. Especially, in case of large Care Center. Implications: This study shows that small facility with community care rather than big facility is desirable for small community in the point of friendliness, convenience, economy, etc.. However it is necessary to combine welfare service and healthcare service even in small centers.

• 컴퓨터교육학회논문지
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• 제17권1호
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• pp.83-96
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• 2014

본 연구는 통합정보시스템 구축 시 어떠한 변수가 성공적인 통합정보시스템 구축에 영향을 주는가를 파악하고, 이들 변수들 간의 관계를 규명하여, 국내 대학에서 통합정보시스템을 구축하는데 있어서 필요한 성공모형과 성공변수를 규명하고자 한다. 이를 위해 본 연구와 관련된 선행연구와 관련연구를 고찰하였으며, 이를 토대로 통합정보시스템 구축을 위한 성공변수를 도출하였다. 연구방법으로는 대학 및 전문대학에 근무하고 있는 직원들을 대상으로 설문지를 이용한 조사연구방법을 적용하였으며, 성공변수들 간의 미치는 영향관계를 검증하기 위하여 회귀분석을 실시하였다. 분석 결과 조직지원요인, 사용자지원요인, 개발지원요인, 시스템 품질, 정보 품질, 서비스 품질, 사용, 순 편익이 통합정보시스템 구축을 위한 성공변수로 도출되었으며, 이들 간의 관계를 규명하여 성공모형을 제시하였다.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2013년도 제45회 하계 정기학술대회 초록집
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• pp.292.2-292.2
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• 2013

Graphene, a two-dimensional graphite material consisting of sp2-hybridized carbons. The properties of graphene such as extremely high carrier mobility, high thermal conductivity, low resistivity, large specific make it a promising materail of divices and material. Typically, poly (methyl methacrylate) (PMMA) is used when graphene transfer to other substrates. To remove PMMA on graphene, people used to dip the graphene into the acetone. However, it is known that the remove of PMMA on the graphene is difficult to completely using the acetone. Therefore, to remove the PMMA on the graphene surface, many research groups have employed various methods such as the thermal treatment, photothermal method, and other solvent. Nevertheless, a part of PMMA still remain on graphene surface. Usually, to observe the residual PMMA on graphene surface, topography of graphene surface scanned by atomic force microscopy is used. However, in that case, we can not distinguish PMMA and other particles. In this study, to confirm the residual PMMA on graphene surface, we employed novel measurement technique which is available to distinguish PMMA and other particles by means of photothermal effect.

• ETRI Journal
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• 제35권4호
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• pp.718-721
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• 2013

This letter proposes a novel calibration method for a multiport amplifier (MPA) to achieve optimum port-to-port isolation by correcting both the amplitude and phase of the calibration signals. The proposed architecture allows for the detection of the phase error and amplitude error in each RF signal path simultaneously and can enhance the calibrated resolution by controlling the analog phase shifters and attenuators. The designed $2{\times}2$ and $4{\times}4$ MPAs show isolation characteristics of 30 dB and 27 dB over a frequency range of 19.5 GHz to 22.5 GHz, respectively.

• Asian-Australasian Journal of Animal Sciences
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• 제27권3호
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• pp.303-309
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• 2014

The increasing importance of meat quality has implications for animal breeding programs. Research has revealed much about the genetic background of pigs, and many studies have revealed the importance of various genetic factors. Since meat quality is a complex trait which is affected by many factors, consideration of the overall phenotype is very useful to study meat quality. For integrating the phenotypes, we used principle component analysis (PCA). The significant SNPs refer to results of the GRAMMAR method against PC1, PC2 and PC3 of 14 meat quality traits of 181 Duroc pigs. The Genome-wide association study (GWAS) found 26 potential SNPs affecting various meat quality traits. The loci identified are located in or near 23 genes. The SNPs associated with meat quality are in or near five genes (ANK1, BMP6, SHH, PIP4K2A, and FOXN2) and have been reported previously. Twenty-five of the significant SNPs also located in meat quality-related QTL regions, these result supported the QTL effect indirectly. Each single gene typically affects multiple traits. Therefore, it is a useful approach to use integrated traits for the various traits at the same time. This innovative approach using integrated traits could be applied on other GWAS of complex-traits including meat-quality, and the results will contribute to improving meat-quality of pork.

• 한국정보통신학회논문지
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• 제17권11호
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• pp.2668-2676
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• 2013

국제민간항공기구(ICAO)는 ASBU(Aviation System Block Upgrade)를 통해서 2013년부터 20년간 항공관련 데이터 시스템의 성능을 향상시키는 프로그램을 채택하였다. 프로그램의 일부분으로써 SWIM(System Wide Information Management) 기술 개발을 통한 항공통신 데이터를 종합 관리하는 망에 대한 연구개발은 미국, 유럽 선진국들을 중심으로 진행 중이다. 이에 따라, 본 논문에서는 선진국들의 개발 동향과 대등한 기술개발을 위해 SOA(Service Oriented Architecture) 개념을 적용한 항공 데이터 서비스 아키텍처 기술개발, 항공 데이터의 종합적 관리를 위한 미래형 데이터 관리 모델 개발, 기존의 항공 데이터 시스템과 연동을 위한 어댑터 기술 개발을 통하여 사용자 중심의 항공데이터 종합 관리망 기술을 개발하는 방법에 기반한 테스트베드 구축 방안을 제안한다.

• KIEAE Journal
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• 제16권6호
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• pp.167-172
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• 2016

Purpose: The solar water heater with natural circulation has been used for several decades in the world as it is automatically operated without a pump and controller and is easy to maintain and repair. After the subsidy was offered from 2012, the solar water heater with natural circulation is becoming increasingly popular in Korea. Recently, the development of a wall-integrated solar water heater, which improves the applicability of buildings and prevents the overheating in the summer, is being developed. On the other hand, the design and performance evaluation data of solar water heaters are very inadequate, and analysis of heat and flow is required to develop a new type of solar water heater. Method: Therefore, in this study, we proposed a new simplified system analysis model that reflects heat and pressure loss from the test results of KS B ISO 9806-1 (Solar collector test method), assuming that the collector is a simple pipe system, the validity of which was verified through experiments. Result: As a result, first, the RMSE of the system circulation flow rate and the average temperature of the inlet and outlet of the collector according to the experimental results and the simulation are 0.05563 and 0.88530, respectively, which are very consistent. Secondly, the mass flow rate is increased linearly with the increase of the solar radiation, and the mass flow rate is 0.0104 ~ 0.0180kg/s in the range of $200{\sim}380W/m^2$ of solar irradiance. Compared with the test flow rate 0.0764kg / s of the test collector, it showed a level of less than 20%.

• 환경영향평가
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• 제10권3호
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• pp.235-243
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• 2001

Since the middle of 1990s, in Korea a few researches on the optimal management technologies combining numerical model and GIS for the management of water environment in drinking watershed area and reservoir such as Paldang Lake have been carried out. In this study, the integrated water environment management system was been suggested to efficiently reflect the public awareness of the environment by integrating the web based distributed data collection system, GIS, public hearing system and water quality model. As all the components of the system have been developed using the World Wide Web and all data have been collected from the relevant agencies through the Internet, the water quality model could be implemented on the web directly. In consequence, the environmental geographic information in Paldang Lake could be acquired and analyzed through the Internet. The system can rapidly respond to the public right to know on environment, so the public will willingly participate in the governmental projects on environment. To verify the usability of the developed system, it has been applied to Paldang Lake. Especially when the web based model has been used, users can easily and confidentially get the prediction results by applying the minimum number of parameters for the water quality model. This model will provide clearness and scientific bases in the process of water quality prediction for the sensitive sites where there are critical conflicts between the residents and the developers. In this study, rapid water environment management technique without spatial and time limit has been suggested, which can contribute to the efforts on the government and the public participation.

• 국제학술발표논문집
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• The 8th International Conference on Construction Engineering and Project Management
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• pp.343-352
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• 2020

Modular integrated construction (MiC) is an innovative construction method where components of a building are manufactured in an offsite factory, trucked to the job site in sections, set in place with cranes, and assembled together to form a whole building. Where circumstances merit, favorable conditions exist and implemented effectively; MiC improves project performance. However, several key factors need to converge during implementation to realize the full benefits of MiC. Thus, a thorough understanding of the factors which are critical to the success of MiC projects is imperative. Drawing on a systematic review of 47 empirical studies, this research identified 25 key success factors (KSFs) for MiC projects. Of these, the five topmost cited KSFs for MiC projects include effective working collaboration and communication among project participants; standardization, optimization, automation and benchmarking of best practices; effective supply chain management; early design freeze and completion; and efficient procurement method and contracting. The study further proposed a conceptual model of the KSFs, highlighting the interdependences of people, processes, and technology-related KSFs for the effective accomplishment of MiC projects. The set of KSFs is practically relevant as they constitute a checklist of items for management to address and deal with during the planning and execution of MiC projects. They also provide a useful basis for future empirical studies tailored towards measuring the performance and success of MiC projects. MiC project participants and stakeholders will find this research useful in reducing failure risks and achieving more desired performance outcomes. One potential impact of the study is that it may inform, guide, and improve the successful implementation of MiC projects in the construction industry. However, the rigor of the analysis and relative importance ranking of the KSFs were limited due to the absence of data.

• Nuclear Engineering and Technology
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• 제34권4호
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• pp.331-343
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• 2002

We performed an importance analysis of In-Service Testing (157) components for Ulchin Unit 3 using the integrated evaluation method for categorizing component safety significance developed in this study. The developed method is basically aimed at having a PSA expert perform an importance analysis using PSA and its related information. The importance analysis using the developed method is initiated by ranking the component importance using quantitative PSA information. The importance analysis of the IST components not modeled in the PSA is performed through the engineering judgment, based on the expertise of PSA, and the quantitative and qualitative information for the 157 components. The PSA scope for importance analysis includes not only Level 1 and 2 internal PSA but also Level 1 external and shutdown/low power operation PSA. The importance analysis results of valves show that 167 (26.55%) of the 629 IST valves are HSSCs and 462 (73.45%) are LSSCs. Those of pumps also show that 28 (70%)of the 40157 pumps are HSSCs and 12 (30%) are LSSCs.