• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.235-238
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• 2002

The successful completion of a construction project requires a thorough understanding of all stages and phases of the project, and enhanced through integration of design and construction during the pre-construction stage. Constructability is a major factor in measuring the success or failure of construction project. During the pre-construction stage, lack of construction knowledge integration in the planning and design process is a major factor that leads to constructability problems during the construction stage. this study is to find out such problems based on interview and questionnaire in the structure's work of High-Rise Office Buildings. The objective of this study is to Identify Impact aspect of the structure's work of High-Rise Office Buildings.

• IE interfaces
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• v.24 no.4
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• pp.314-322
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• 2011

This study analyzes a relationship between Data Envelopment Analysis(DEA) efficiency scores and a normalization index in order to examine the validity of DEA models. A normalization index concerned in this study is 'sales per R&D project fund' which is regarded as a crucial R&D project performance evaluation index in practice. For this correlation analysis, three distinct DEA models are selected such as DEA basic model, DEA/AR-I revised model(i.e. DEA basic model with Acceptance Region Type I constraints) and Super-Efficiency(SE) model. Especially, SE model is adopted where efficient R&D projects(i.e. Decision Making Units, DMU's) with DEA efficiency score of unity from DEA basic model can be further differentiated in ranks. Considering the non-normality and outliers, two rank correlation coefficients such as Spearman's ${\rho}_s$ and Kendall's ${\tau}_B$ are investigated in addition to Pearson's ${\gamma}$. With an up-to-date empirical massive dataset of n = 482 R&D projects associated with R&D Loan Program of Korea Information Communication Promotion Fund in the year of 2011, statistically significant (+) correlations are verified between the normalization index and every model's DEA efficiency scores with all three correlation coefficients. Especially, the congruence verified in this empirical analysis can be a useful reference for enhancing the practitioner's acceptability onto DEA efficiency scores as a real-world R&D project performance evaluation index.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.10
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• pp.2201-2206
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• 2010

The shortage of fossil fuel drives researchers to find a new way to increases energy efficiency. In this paper, we propose a method to control the direction and speed of an air conditioner using a thermal image and fuzzy controlling method, which results in the increase of energy efficiency. The thermal image is first converted into a color temperature image which represents the temperature range from $24.0^{\circ}C$ to $27.0^{\circ}C$. The temperature image is divided into 5 columns and the distribution of them is used to analyze room temperature and control an air conditioner. The proposed method was applied to 300 by 400 thermal images. When the performance of the proposed method was compared to existing systems in energy efficiency, the proposed method was better than existing methods, which is clear from experimental results.

• Applied Biological Chemistry
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• v.14 no.2
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• pp.171-175
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• 1971

Gibberella fujikuroi(imperfect stage Fusarium moniforme) a soil fungi is well known as the producer of plant growth regulator Gibberellins. The present work was planned for the isolation of the active strains of Gibberella fujikuroi from the native paddy soils. Twenty two strains were isolated from the infected rice seedlings collected from four local areas. Pyongtaek, Yesan, Tangjin and Sunchon and screened through the activity test for the production of Gibberellins. The strains P-105, Y-14 and T-58 yielded higher activity than the others isolated and the referred strain IAM-8048. The strains Y-5, Y-7, T-54 and S-152, however, were less promotive or rather inhibitory in the growth of rice seedlings. Six different kinds of culture media developed by Cross, Raulin-Thom, Borrow, West, Stodola and Kurosawa respectively were compared with each other for the production of Gibberellins and the best result was obtained with Raulin-Thom's media(glucose 16% and $NH_4NO_3$ 0.24%).

• Archives of design research
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• v.16 no.2
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• pp.57-66
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• 2003

In order to develop color image, color simulation based on data processing techniques has been developed and applied to data interpretation tools or product design supporting systems. It has been a commonmethod to use image key words to search for data and provide color coordination samples that determine computer combination in computerized support systems until recently. However, this method does not reflect system designers and users taste or preference on making final choices of color coordination samples because the database was designed based on an assumption of standardized group that was established database from large scaled image evaluation research. In this study, we suggest a color coordination simulator that supports designer's final decision-making procedure on sample groups through the simulation of various color combination. The simulator allows communications with the system to explore a designer's color combination taste and preference, and provides a user for an efficient environment to judge the optimum result. The color coordination simulator was designed based upon Dual mapping model derived from a designer's thought process, and four steps of operations longrightarrowdefining color concept longrightarrowmaking color sample groupslongrightarrow simulation-determining ranking among final combination samples - will be assisting color design process.

• Archives of design research
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• v.20 no.1 s.69
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• pp.177-188
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• 2007

This study is about the design of teaching assistant robots that helps elementary school teachers while giving lectures. It focuses on finding images which fits the role of teaching assistant robots, not merely suggesting several designs of robots that are just preferred by children. For this study, the qualities that satisfy the role of teaching assistant were studied by literature reviewing. These qualities were grouped and prioritized to arrange them as role images of teaching assistant robot, through questionnaire to teachers and student teachers. Using the role images and basic adjectives as standards, children performed the image mapping with the pictures of existing robots. This allowed us to find out how children accept the external features of each robot, and which external feature has to be used in order to reveal the role images. And taking form of workshop, children expressed their own images of a teaching assistant robot, a robot's height and location in classroom was surveyed. Based on these studies', three design guidelines of teaching assistant robot have been suggested.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2001.11a
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• pp.19-35
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• 2001

우리나라에서 수행된 국책연구개발기술과 관련된 기존 연구는 주로 기술개발에 초점이 맞추어진 관계로, 개발기술의 상용화는 연구개발 결과평가요인의 하나로서 다루어졌을 뿐, 그 자체를 효율화하기 위한 체계적인 연구는 없었다고 해도 과언이 아니다. 이러한 결과로 실제 국책연구개발의 기술적인 이전이 부족하고, 여러 분야에로의 2차 확산을 통한 상용화에 대한 성공률이 상대적으로 낮은 수준에 머무르고 있다. 또한 국내에서 출원된 특허를 포함한 산업재산권의 휴면 율이 55%-65% 수준에 이르고 있다. 이와 같이 연구개발기술의 산업계로의 확산이 부족한 관계로 국제적인 기술경쟁력의 제고가 어려우며, 기술발전과 산업발전이 상호 작용하는 선 순환적 구조를 이루지 못하고 있다. 따라서 본고에서는 기술집약형 중소기업 또는 기술벤처기업을 통한 정보통신산업분야의 정부지원 연구개발 기술의 상업화를 촉진하기 위한 효율적 방안의 도출을 위하여, 일차적으로 연구개발 기술의 상용화프로세스 모형을 도출하고, 다음으로 도출된 모형의 단계별 특성에 대한 기술개발자, 기술사용기업, 지원기관간의 중요도 차이를 분석하고자 한다. 이를 위하여 기존의 기술상용화 관련문헌 분석과, 우리나라의 정보통신 분야의 상용화 특성분석을 통하여, 우리나라 기술개발특성에 맞는 6 단계의 상용화프로세스 모형, 즉 1) 연구개발 계획 및 제안서 작성, 2)연구개발의 수행, 3)개발기술의 인큐베이팅과 시작품제작, 4)테스팅, 엔지니어링 및 시험생산, 5) 공장입지 결정 및 대량생산, 6) 시장판매, 마케팅 및 확산 등을 도출하였다. 아울러 동 모형의 단계별 특성을 설문지로 작성하여, 기술사용기업(벤처기업 및 기술집약형 중소기업), 기술개발자(국책연구소, 대학, 및 일반기업), 관련기관(정부, TBI운영기관, 정책 및 지원기관)을 대상으로 설문조사를 하였다. 회수 및 사용된 142개 설문지 분석을 통하여, 일차적으로 정보통신 국책개발기술의 상용화에 관한 변수들의 중요도 순위로 본 중요도 실태를 분석하였으며, 나아가 이들 변수에 대하여 앞에서 제시한 기술사용기업-기술개발자-관련기관 즉 세 집단 간의 차이분석 즉 ANOVA 분석을 하였다. 이러한 분석을 통하여 우리나라 정보통신 국책연구개발기술의 상용화와 관련된 특성을 도출하는 동시에, 이를 촉진하기 위한 인프라조성과 관련한 중요한 특성 및 지원정책 대안을 도출하였다.

• Applied Biological Chemistry
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• v.31 no.4
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• pp.387-393
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• 1988

Changes in chemical composition, viscosity and color during fermentation of improved Kochoojang from four starch sources (wheat, barley, rice and glutinous rice) were examined. Analyses included measurements of moisture, reducing sugars, amino nitrogen, pH, total acidity, viscosity, color and sensory panel scores for viscosity, color, odor and taste. Changes in chemical composition were similar for all Kochoojang products. Decrease in viscosity was greatest during the first 10 days of fermentation. Hunter tristimulus values decreased gradually during fermentation, and total color difference after 60 days was greatest for rice flour Kochoojang. Sensory evaluation showed that the viscosity of rice flour Kochoojang was less desirable than that of the others. However, no significant differences were found in color, odor and taste of all Kochoojang products. A high negative correlation was observed between Hunter a value and visual preference.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.8
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• pp.130-139
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• 2020

The defense industry is a future-oriented industry, in which high-tech technologies are concentrated. In addition, it is a key industry for maintaining national security, and the R&D of the defense industry is very important. With the introduction of a competitive system by defense industry companies, the necessity of improving the efficiency and productivity of defense industry companies is emerging. In this study, the efficiency of the defense industry was measured using the CCR and BCC model. In addition, super efficiency was derived using the Super-SBM model. For this study, the 2019 defense industry management analysis data of the Korea Defense Industry Association (KDIA) was used, and the analysis was performed by setting the number of researchers and investments of domestic defense industry companies as the input variables and sales as the output variables. Through this study, it is expected that the defense industry's R&D efficiency will be grasped, which will help establish a policy for fostering the defense industry in the future.

• Journal of KIISE:Computer Systems and Theory
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• v.27 no.3
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• pp.255-263
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• 2000

A multistage interconnection network is a suitable class of interconnection architecture for constructing large-scale multicomputers. Broadcast and multicast communication are fundamental in supporting collective communication operations such as reduction and barrier synchronization. In this paper, we propose a new multicast technique in wormhole-switched bidirectional multistage banyan networks for constructing large-scale multicomputers. To efficiently support broadcast and multicast with simple additional hardware without deadlock, we propose a two-phase multicast algorithm which takes only two transmissions to perform a broadcast and a multicast to an arbitrary number of desired destinations. We encode a header as a cube and adopt the most upper input link first scheme with periodic priority rotation as arbitration mechanism on contented output links. We coalesce the desired destination addresses into multiple number of cubes. And then, we evaluate the performance of the proposed algorithm by simulation. The proposed two-phase multicast algorithm makes a significant improvement in terms of latency. It is noticeable that the two-phase algorithm keeps broadcast latency as efficient as the multicast latency of fanout 2^m where m is the minimum integer satisfying $2^m{\geq} {\sqrt{N}}$ ( N is a network size).