• Land and Housing Review
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• v.13 no.3
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• pp.115-123
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• 2022

Recently, the adoption of BIM technology in domestic civil engineering projects has continually increased both in its numbers and scope. However, the BIM model was developed and used after the 2D design was developed instead of creating the BIM model from the conceptual design phase. BIM must be used throughout every phase of design and construction to use BIM for its original purpose. However, if BIM application is applied in heavy civil projects without a step-by-step guideline, it can confuse the market and face industry resistance to using BIM. Therefore, BIM is currently being used step by step in the civil engineering field by using BIM as a conversion design. However, the BIM conversion design method, currently being performed in the Preliminary design stage, has many difficulties due to low work efficiency. This paper analyzes the existing process of converting a 2D design into a 3D BIM model while addressing the issues related to its low work efficiency. To this end, a novel approach to 2D to BIM conversion for the design development stage is proposed.

• Journal of Internet of Things and Convergence
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• v.8 no.3
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• pp.11-20
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• 2022

Corporations operate within long term strategy. The Chief Executive Officer (CEO) makes decisions and has responsibility for all executive activities which affects the corporate performance. If the CEO makes strategic choices through reasonable decision making, it could affect corporate performance and corporate's rise and fall. So the CEO's decision making is very important. As rapid change in the digital technology environment happened, through digital transition, corporations have been working on increasing corporate performance by practical and academic methods. However prior research was restricted to CEO's affect on organization, innovation or innovative activities and there is a lack of research linking CEO's characteristics to digital transition and corporate performance. As the digital age is coming, research on how CEO's characteristics affect digital transition and corporate performance is direly needed. From the case of domestic Big Data corporation RSN Co. ltd's digital transition success, understanding characteristics of CEO, digital transition and corporate performance through prior researches, and developing research model and research proposition was set. Research was performed on RSN co. ltd's case analysis, and how characteristics of CEO's matter on digital transformation and corporate performance. As a result of the proposition, when the CEO conjugates digital technology, the corporation was able to successfully complete digital transition and it also affects corporate performance. Also, this research's other point is that CEO's may have limits on thoughtful decision making. It is judged that it is necessary to try an empirical study in the future.

• Korean Journal of Plant Tissue Culture
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• v.27 no.2
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• pp.95-100
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• 2000

The cytosolic glutathione reductase (GR) gene of Brassica campestris L. was introduced into several Japonica cultivars of rice by Agrobacterium tumefaciens and a large number of transgenic plants were produced. Three-week old calli were co-cultivated with A. tumefaciens strain EHA101 carrying the plasmid pIGR1. The efficiency of transformation was differed from rice cultivars. A Japonica cultivar, 'Daeribbyeo' appeared the highest efficiency (42.5%) of transformation among the four cultivars tested. The addition of acetosyringone (50 $\mu$M) during co-cultivation was a key to successful transformation. Transgene fragments were identified by PCR amplification and further confirmed by Southern blot analysis. Mendelian inheritance of the transgenes was confirmed in T$_1$ progeny.

• Journal of Digital Convergence
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• v.15 no.12
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• pp.283-291
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• 2017

This Study analyzes the predictability of accounting information from mandatory K-IFRS adoption using the K-IFRS reconciliations information. We use the sample of 2,557 firm-year Korea listed companies belonging to non-financial corporate sector during 2010-2016. Specifically, we examine whether K-IFS reconciliation would improve or reduce the predicting power for future earnings after K-IFRS adoption. The results of empirical analyses show that reconciliation information from discretionary judgement tend to reduce the predicting power of K-IFRS based accounting earnings for future earnings. This result indicates that managers are likely to use the adjustments process to reconcile K-GAAP accounting numbers with corresponding K-IFRS as means to realize the various private utility. This study is expected to provide useful information by suggesting the need for more rigid screening schemes for the K-IFRS reconciliation process and also for adequate measures to be taken to ensure that the interests of the outside investors are properly protected.

• Design Convergence Study
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• v.17 no.4
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• pp.17-29
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• 2018

In the semi-autonomous vehicle, before reaching a fully autonomous driving stage, it is imperative for the system to issue a take-over request(TOR) that asks a driver to operate manually in a specific situation. The purpose of this study is to compare whether head-up display(HUD) is a better human-vehicle interaction than head-down display(HUD) in the event of TOR. Upon recognition of TOR in the experiment with a driving simulator, participants were prompted to switch over to manual driving after performing a secondart task, that is, playing a game, while in auto-driving mode. The results show that HUD is superior to HDD in 'ease of use' and 'satisfaction' although there is no significant difference in reaction time and subjective workload. Therefore, designing secondary tasks through HUD during autonomous driving situation improves the user experience of the TOR function. The implication of this study lies in the establishing an empirical case for setting up UX design guidelines for autonomous driving context.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.1239-1241
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• 2015

ETL(Extraction, Transformation, Loading)작업은 데이터웨어하우스 시스템 구축 및 유지관리 뿐만 아니라 차세대 정보시스템 구축의 핵심 프로세스에 해당한다. 특히 차세대 정보시스템 구축에 있어서 ETL 작업의 성능은 시스템오픈의 성패를 좌우하는 중요한 요소이다. 일반적으로 차세대시스템 구축의 데이터 전환을 위해 수행되는 ETL작업은 대용량데이터에 대한 다양한 형태의 데이터변형 과정을 수반하며 반드시 정해진 시간안에 완료되어야 한다. 또한, 수 많은 원천 집합을 추출하여 타겟시스템의 형태에 맞게 변형 및 적재하는 작업은 한정된 컴퓨팅 자원내에서 수행되어야 한다. 따라서 자원성능을 고려한 ETL작업 스케줄 최적화는 데이터전환 작업에 있어 필수적인 고려사항이 된다. 이 연구에서는 가용한 물리자원을 최대한 활용하여 ETL 프로세스의 처리능(throughput)을 최대화 하는데 초점을 맞추어, ETL프로세스를 페트리넷을 이용해 모델링하는 기법을 제시한다. 이 모델에는 ETL 프로세스가 수행될 서버의 컴퓨팅자원이 토큰화(tokenize)되어 포함된다. 이 모델을 기반으로 가용자원을 최대한 활용하면서도 자원병목이 발생하지 않는 수준으로 ETL 작업이 수행될 수 있도록 프로세스를 제어할 수 있는 방안을 제시한다.

• Current Research on Agriculture and Life Sciences
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• v.31 no.2
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• pp.124-130
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• 2013

The significance of environment change and genetic safety has been recently recognized by many genetically modified (GM) plants. This study was to evaluate the safety of drought-tolerant rice and to identify the environment variance. The GM rice of drought-tolerant rice and four check cultivars were analyzed the data on agronomic characters and principal component in large-GM crop field. There was no significant difference in agronomic characters between the drought-tolerant rice and donor plant, 'Ilmi'. Grain yield showed the standard deviation of the difference, did not significant statistically. Related to grain characters, grain appearance were similar to the drought-tolerant rice and donor plant, 'Ilmi'. In Chemical characters, brown rice of the drought-tolerant rice and a donor plant, 'Ilmi' did difference in starch and protein, however, was similar as 'Ilpum'. These results indicated that drought-tolerant rice may perform to detect genetic safety in GM plants progeny.

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.402-403
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• 2008

한전의 신배전정보시스템(NDIS)은 지리정보시스템(GIS)을 활용하여 전국에 시설되어 있는 방대한 배전설비를 데이터베이스로 구축한 후 배전계획, 배전설계, 공사관리, 준공정산, 자산취득, 유지보수 등 배전분야 전반의 업무를 수행하고 고객정보시스템과 연계하여 영업업무를 지원하는 시스템으로 저압공급방안검토, 고압계통분석, 보호협조검토, Simulation 등 배전분야에서 필요한 다양한 기술지원 기능과 경제적인 투자계획, 효율적인 유지보수 등을 위한 배전통계 및 자원정보 등 장기적 관점의 경영정보 인프라를 구축하여 배전설계에서 준공까지 업무흐름 표준화, 업무처리 절차, 방법 등을 시스템에서 자동 지원토록하여 반복적인 배전정보 관리업무의 정확도 향상을 목적으로 만들어진 시스템이다. 신배전 정보시스템의 배전설비는 모두 위치값을 가지고 있는데 지중배전설비는 위치에 대한 측량 및 탐사를 시행하여 신배전정보시스템에 DB입력하여 사용하고 있으며 이 입력 좌표체계는 한정된 일부지역에서만 사용할 수 있는 동경측지계를 사용하고 있다. 2010년 부터는 이동 경측지계를 전 세계적으로 GPS측량값을 그대로 적용할 수 있는 세계 측지계로 사용토록 측량법에 명시되어 있어 신배전정보시스템의 배전설비를 전환 프로그램을 개발하여 전환하고자 한다.

• Journal of Gifted/Talented Education
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• v.20 no.3
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• pp.967-984
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• 2010

This study purposed to examine the effects of the Feuerstein's cognitive mediated learning for gifted children on attention control and attention shift. For the study, 40 gifted students were chosen from the 3rd graders in elementary schools and divided into test and control groups using K-WISC-III and Torrance Tests of Creative Thinking. The mediated learning program that is targeted to improve the executive functions of gifted children has used the tools of Organization of Dots, Analytic Perception and Comparisons among Feuerstein's Instrumental Enrichment(FIE). According to the results of this study, a significant improvement has been observed in selective attention, self-control, sustained attention, and attention shift through cognitive mediated learning. Therefore, it has been proven that the cognitive mediated learning is effective in reducing gifted children's problematic behaviors that are caused by a lack of attention control and attention shift and improving their cognitive functions and potentials.

• Journal of Korea Port Economic Association
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• v.37 no.4
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• pp.89-102
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• 2021

The purpose of this paper is to study the impact of shipping service firm's perceived relational benefits on switching barriers and loyalty focusing on tug boat service. To achieve the purpose of the research, literature survey on existing literature, thesis, research report is performed and also reliability analysis, validity test and multiple regression analysis using SPSSWIN 18.0 is used in this research. To verify a research model and hypothesis, a questionnaire survey among employees of shipping companies and shipping agencies was executed. 76 copies of total 200 copies of questionnaires were collected and the number of questionnaire used for empirical analysis was 76 copies. The main results of the study are summarized as below. First, Hypothesis 1 "shipping service firm's perceived relational benefits has a positive impact on the switching barrier" was supported by this study. Second, Hypothesis 2 "shipping service firm's perceived relational benefits has a positive impact on the loyalty" was supported in this research. Finally, Hypothesis 3 "switching barrier has a positive impact on the customer's loyalty" was also supported. Further research can be extended by adding more questionnaires including more shipping service firms all over the nation.