• Proceedings of the Korean Vacuum Society Conference
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• 1994.06a
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• pp.92-92
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• 1994

Relative intensities of photons emitted from tilted carbon foils have been measured in the wavelength region 300800 nm by 0,6-2,4 MeV $H^{+}\;and\;He^{+}$ ion impacts, Ions were directed onto target surfaces at tilt angles with respect to the sllrface normal, Experimental results support the model that the observed continuum radiation is emitted from the exited carbon foil itself. At each incident projectile energy, the photon intensities of continuum spectra for tilted carbon foi Is were compatred to the stoppi ng powers of carbon for $H^{+}\;and\;He^{+}$ ions, It was found that the photon emission intensity for $H^{+}$ ion is linearly proportional to the stopping power, whereas that for $He^{+}$ ions is proportional to a higher power of the stopping power, and that this tendency increases wi th decreasing velocity of the projectiIes[1, 2].[1, 2].

• The Journal of Asian Finance, Economics and Business
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• v.7 no.10
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• pp.581-589
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• 2020

Foreign factors play an important role in the socio-economic development of each country, in which foreign direct investment (FDI), foreign aid and exports of goods and services are always given top priority in undeveloped countries as well as developing countries. The purpose of this study is to examine the relationship between the various factors such as FDI, foreign aid, exports and economic growth in Vietnam. The empirical method employed secondary time-series data set during the period 1997-2018 to determine the impact of FDI, foreign aid and exports on economic growth in Vietnam by using a linear approach. For this study, data is collected from the World Bank and relevant agencies in Vietnam. An empirical model is built with a correlation and regression analysis between economic growth (GDP, current) and three independent variables (FDI, aid, exports of goods and services). The results show that the relationship between FDI (net inflows), aid, exports and GDP (current) has a positive effect at a 1% significance level. Based on these findings, the article recommends that Vietnam continues to seek effective solutions to maintain high economic growth rates by attracting FDI inflows, official development assistance (ODA), and increasing exports of goods and services.

• Journal of Information Technology Applications and Management
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• v.25 no.3
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• pp.43-54
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• 2018

In recent years, international cooperation has become important not only at the humanitarian level but also at the socio-economic level. As a result, major foreign countries are increasing capital-intensive international cooperation. In this environment, Korea needs to look for differentiated international cooperation plans centered on sustainable talent cultivation and move away from capital-based international cooperation. In this study, we analyzed the case of HRD (Human Resource Development) center in Cambodia as an international cooperation model between industry-academia-college for training software (SW) workforce. The HRD Center in Cambodia is an educational institution that fosters SW talent and can be viewed as an international cooperation model that can influence the ICT industry in Cambodia as an educational platform. In fact, 190 people who have been hired so far have entered various fields. 97% of graduates have been satisfied with HRD center and 90% of them are willing to recommend the center. In particular, as highlighted in the case study, the HRD Center has had a positive effect on not only cultivating self-initiated learning-based SW talent, but also formulating positive image of Korea and Korean companies thereby facilitating entry into the global market. The HRD Center in Cambodia has developed a virtuous cycle of fostering human resources, providing education, advancing industry and building a cooperative network. Korea has transformed into a platform for international cooperation and human resource development and education by providing active support and aid. This case study will be utilized as a new model of international cooperation with SW expert training platform for Korea.

• The Journal of the Convergence on Culture Technology
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• v.9 no.4
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• pp.141-151
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• 2023

Traditional ODA to North Korea (NK) has been unsustainable and politically contentious. This study proposes the design of appropriate technology (AT) as an alternative. We identified NK residents' urgent needs and global AT instances, and classified data by Maslow's hierarchy of needs. As electricity and potable water were identified as primary needs, suitable AT cases were selected. Given NK's extreme isolation, collaborative AT practices with local residents are unfeasible. Therefore we propose a new AT adoption model customized to NK, which emphasizes community-level adoption. We proposed a solar charging station for cooperative farms, a re-design of an AT previously utilized in Africa, and tailored it to fit our proposed model. The study's significance lies in its novel AT adoption model for NK's unique social fabric and the proposition of a specific design case, thus transcending previous relevant studies exploring AT's potential for NK.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.7 no.4
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• pp.131-141
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• 2012

The miracle of Korean economic development is the benchmarking for the developing countries. Among them, the STP of Science and technology area is very important case they tring to learn from Deadeok, Korea. Ecuador and Kazakhstan have the huge natural resources and they have interested in the model of Daedeok STP. This paper study about their needs and Daedeok's capability, and effective implementing factors. This paper suggest a six one based on the Daedeok Innopolis experiences for the successful local STP. First, most important thing is human resource development strategy for the knowledge and technology transfer. Second, the construction of Engineering Center for the collaboration of industry and academy is needed. This is important to have a bargaining power to the appropriate technology transfer. Third, they need a hardware and software infrastructure to the technology commercialization. It include a incubator, manager, and complimentary asset. Fourth, they have to connect with market closely for the venture creation and growth. Fifth, the clustering is realized by the STP construction. Lastly, leadership is critical factor to the absorptive capacity.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.16 no.4
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• pp.36-53
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• 2017

The global intelligent transport systems (ITS) market is experiencing rapid growth, and domestic ITS companies' efforts to extend its business abroad are steadily increasing. However, due to the burden of costs associated with the overseas expansion and the lack of strategy for local market, domestic companies' contracts for global businesses are far short of the technology. Although the government is actively promoting Korean enterprises' participation to overseas business, it has obvious limits due to the lack of its specialized strategy. This study established a customized export model for the countries in which Korean companies want to enter, and developed a strategy to advance into the local market.

• Journal of Korea Water Resources Association
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• v.56 no.12
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• pp.981-992
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• 2023

Due to recent global climate change, the scale of flood damage is increasing as rainfall is concentrated and its intensity increases. Rain on a scale that has not been observed in the past may fall, and long-term rainy seasons that have not been recorded may occur. These damages are also concentrated in ASEAN countries, and many people in ASEAN countries are affected, along with frequent occurrences of flooding due to typhoons and torrential rains. In particular, the Bandung region which is located in the Upper Chitarum River basin in Indonesia has topographical characteristics in the form of a basin, making it very vulnerable to flooding. Accordingly, through the Official Development Assistance (ODA), a flood forecasting and warning system was established for the Upper Citarium River basin in 2017 and is currently in operation. Nevertheless, the Upper Citarium River basin is still exposed to the risk of human and property damage in the event of a flood, so efforts to reduce damage through fast and accurate flood forecasting are continuously needed. Therefore, in this study an artificial intelligence-based river flood water level forecasting model for Dayeu Kolot as a target station was developed by using 10-minute hydrological data from 4 rainfall stations and 1 water level station. Using 10-minute hydrological observation data from 6 stations from January 2017 to January 2021, learning, verification, and testing were performed for lead time such as 0.5, 1, 2, 3, 4, 5 and 6 hour and LSTM was applied as an artificial intelligence algorithm. As a result of the study, good results were shown in model fit and error for all lead times, and as a result of reviewing the prediction accuracy according to the learning dataset conditions, it is expected to be used to build an efficient artificial intelligence-based model as it secures prediction accuracy similar to that of using all observation stations even when there are few reference stations.

• Journal of the Korean earth science society
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• v.44 no.4
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• pp.318-330
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• 2023

This study aimed to verify the validity of a measurement tool for Vietnamese high school students' systems thinking abilities. Two quantitative assessment tools, the Systems Thinking Measuring Instrument (Lee et al., 2013) and the Systems Thinking Scale (Dolansky et al., 2020), were used to measure students' systems thinking after translation into Vietnamese. As a result, it was revealed that Cronbach-α for each tool (i.e., STMI and STS) was .917 and .950, respectively, indicating high reliability for both. To validate the construct validity of the translated questionnaire, exploratory factor analysis was performed using SPSS 26.0, and confirmatory factor analysis was performed using AMOS 21.0. For concurrent validity, correlation analysis using structural equation modeling was performed to validate the translated questionnaire. Exploratory factor analysis revealed that 10 items from the STMI and 12 items from the STS loaded on the intended factors and appropriate factor loading values were obtained. For confirmatory factor analysis, a structural equation model organized with 10 items from the STMI and 12 items from the STS was used. The result of this showed that the convergent validity values of the model were all appropriate, and the model fit indices were analyzed to be χ²/df of 1.892, CFI of .928, TLI of .919, SRMR of .047, and RMSEA of .063, indicating that the model consisting of the 22 items of the two questionnaires was appropriate. Analysis of the concurrent validity of the two tools indicated a high correlation coefficient (.903) and high correlation (.571-.846) among the subfactors. In conclusion, both the STMI and STS are valid quantitative measures of systems thinking, and it can be inferred that the systems thinking of Vietnamese high-school students can be quantitatively measured using the 22 items identified in our analysis. Using the tool validated in this study with other tools (e.g., qualitative assessment) can help accurately measure Vietnamese high school students' systems thinking abilities. Furthermore, these tools can be used to collect evidence and support effective education in ODA projects and volunteer programs.

• Proceedings of the Korea Water Resources Association Conference
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• 2012.05a
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• pp.122-122
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• 2012

본 연구의 목적은 한국형 녹색성장 협력 모델을 기반으로 한국의 대(對) 메콩지역 진출 방안을 모색하는 것이다. 메콩 유역은 중국의 운남성 지방, 미얀마, 라오스, 태국, 캄보디아, 베트남 등 6개국이 위치하고 있는데 이 지역은 세계 경제 침체에도 불구하고 높은 경제 성장률을 달성하고 있다. 이에 따라 세계 각국이 개발사업 선점을 위한 치열한 경쟁을 벌이고 있으며 일본, 미국, 중국이 발 빠르게 영향력을 확장하고 있다. 한국은 지난해 메콩 5개국의 외교장관을 서울로 초청하여 회담을 개최하여 메콩 지역 진출의 교두보를 마련하였으나 최근 세계 각국이 메콩 지역의 개발사업 진출을 위해 적극적으로 노력하고 있는 상황에서 선진국과 차별적인 경쟁우위를 살릴 수 있는 방안의 모색이 필요하다. 따라서 본 연구는 2008년 이명박 정부가 제시한 신성장 패러다임인 녹색성장 모델과, 물관리 정책과 사업을 접목시킨 물과 녹색성장 공적개발원조 및 무나싱해(Munasinghe)의 지속가능한 경제(Sustainomics)가설을 이론적으로 고찰하여 대(對) 메콩유역 협력 방안 모델을 설계하였다. 이 지역이 급속한 경제 성장으로 전력수요가 증가하고 있고, 환경오염에 대한 우려를 잠식시키고 국가의 에너지 안보를 위해 높은 수입 석유 의존율을 낮춰야한다는 점 등을 고려해보았을 때 메콩 유역의 수력발전이 이 지역의 녹색성장을 위한 큰 동력이 될 수 있을 것으로 사료된다. 뿐만 아니라 홍수방재 효과, 전력 수출로 인한 소득 창출은 이 지역의 사회발전으로 이어질 수 있을 것으로 기대된다. 그러므로 본 연구는 자금조달 방식, 외교적 접근, 기술적 접근, 제도적 접근 방식을 제시하여 단계적으로 대(對) 메콩유역 한국형 물과 녹생성장 ODA의 나아가야 할 방향을 모색해 보았다. 제시된 협력 모델을 기반으로 점차 한국이 메콩 유역의 수력발전산업으로 진출하고 더 나아가 이지역의 영향력을 확대하는 데 큰 도움이 될 것으로 사료된다.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.39
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• pp.16.1-16.6
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• 2017

Background: Mandibular reconstruction is performed after segmental mandibulectomy, and precise repositioning of the condylar head in the temporomandibular fossa is essential for maintaining preoperative occlusion. Methods: In cases without involvement of soft tissue around the mandibular bone, the autopolymer resin in a soft state is pressed against the lower border of the mandible and buccal and lingual sides of the 3D model on the excised side. After hardening, it is shaved with a carbide bar to make the proximal and distal parts parallel to the resected surface in order to determine the direction of mandibular resection. On the other hand, in cases that require resection of soft tissue around the mandible such as cases of a malignant tumor, right and left mandibular rami of the 3D model are connected with the autopolymer resin to keep the preoperative position between proximal and distal segments before surgical simulation. The device is made to fit the lower border of the anterior mandible and the posterior border of the mandibular ramus. The device has a U-shaped handle so that adaptation of the device will not interfere with the soft tissue to be removed and has holes to be fixed on the mandible with screws. Results: We successfully performed the planned accurate segmental mandibulectomy and the precise repositioning of the condylar head by the device. Conclusions: The present technique and device that we developed proved to be simple and useful for restoring the preoperative condylar head positioning in the temporomandibular fossa and the precise resection of the mandible.