• 기술경영경제학회:학술대회논문집
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• 기술경영경제학회 1998년도 제13회 하계학술발표회 논문집
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• pp.164-179
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• 1998

The interactive diffusion of technological knowledge across industries is reckoned as the principal determinant of the industrial competitiveness in the knowledge-based economy. The flow of technological knowledge takes place through two major channels, embodied and disembodied ones. This paper analyzes, from the dynamic perspective, the functional role and changing relationship of major Korean industries in terms of embodied and disembodied technological knowledge flow-structures during 1980s. We measure, as a proxy, the knowledge by the number of R&D researchers. The inter-industrial embodied and disembodied knowledge flows are measured by the input-output technique and the technological similarity is quantified according to the R&D researchers'academic background, respectively. Based on the comparative and correlation analysis between the two knowledge flow-structures, it is found that there exist, albeit not striking, both similarities and differences between them. However, interestingly and indicatively, we find that the two flow structures become more similar as time goes by. Some explanatory comments and policy implications are presented.

• Asian review of World Histories
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• 제4권2호
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• pp.231-256
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• 2016

This paper presents a case study of the Muslim diaspora through comparative analysis of Islamic tombstones from the Southeast Coast of China under Mongol rule. The locations of the nisbas in the Islamic tombstones are widely dispersed, covering Xinjiang, Transoxiana, Iran, Khorasan, Khwarazm, Armenia, Syria, Palestine, and Arabia. Unexpectedly, we did not find a single named location from India or Southeast Asia. It is well known that notable descendants of distinguished families traditionally produced officials, intellectuals, and wealthy merchants, and surrendered to the Mongols during the war against the Qara Khitai Khanate and the Khwarazm Empire. There were a great number of appointed officials with Muslim names in the Jianghuai (around Lower Yangtze) and Fujian regions. This is consistent with the concentration of epitaphs written in Arabic on the southeast coast of China. The frequent use of the specific tradition of the prophet Muhammad associating the death of the exile with martyrdom in Islamic tombstones in Quanzhou, Hangzhou, and Yangzhou indicates that the Muslims in these port cities eventually established an interregional or diasporic identity of Muslim foreighners whoimmigrated into the region.

• 산업경영시스템학회지
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• 제19권39호
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• pp.155-162
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• 1996

It is a common tool to use alphanumeric displays on CRT for documentation, search, and communication. So, it is very important to design ergonomic displays for enhancing user performance. This paper concerns with a method of quantifing the four VDT design parameters such as total density, local density, grouping and layout complexity. A case study to demonstrate the pocedure of quantifing parameters and a comparative analysis between the ready made and the newly designed displays are provided in this paper. Concludingly, ergonomic displays which were designed in accordance with the scientific procedure were much more better than the ready made exampled displays in both of processing time and error rate.

• 한국인터넷방송통신학회논문지
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• 제14권6호
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• pp.113-117
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• 2014

본 논문에서는 레이더 시스템에서 탐지 거리 추정에 영향을 미치는 레이더 단면적의 크기에 대한 집적 방식을 비교 분석한다. 본 논문에서는 레이더 단면적의 크기에 따라 크기가 작을 경우 스웰링 케이스 1, 클 경우에는 스웰링 케이스 3의 탐지 확률을 레이더 방정식에 적용하여 탐지 거리를 추정하였다. 모의실험을 통해서 스웰링 케이스의 차이에 따른 코히런트 집적과 비 코히런트 집적을 비교 분석하였다. 비교 분석 결과, 비 코히런트 집적 방식이 추정 거리가 가장 우수하였고 코히런트 집적 방식은 스웰링 케이스를 적용한 탐지 거리 추정에 적합하지 않음을 알 수 있었다.

• 한국국방경영분석학회지
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• 제33권2호
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• pp.61-73
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• 2007

본 연구의 목적은 미래 기술예측에 사용되는 TFDEA(Technological Forecasting with Data Envelopment Analysis)의 문제점을 살펴보고 이의 개선방향을 찾아 주력전차의 기술예측 문제에 적용해 보는 것이다. 기존의 TFDEA는 복수의 DMU(Decison Making Unit)를 효율적 DMU로 판정하는 DEA(Data Envelopment Analysis)의 특성상 실제로는 그다지 효율적이지 않은 DMU까지 포함해서 기슬예측을 수행함으로써 예측 결과의 정확도가 저하될 수 있다. 본 연구에서는 DEA의 확장된 개념을 적용하여 평가 대상 DMU에 대한 순위를 산정한 후 이를 토대로 기술 예측을 시행하는 방법을 검토해 보았다. 이를 위해 일반적인 DEA기반의 순위선정 방법 중 대표적인 Super-efficiency, Cross-efficiency, CCCA(Constrained Canonical Correlation Analysis)을 TFDEA에 결합 적용하고 이들을 비교해 보았다. 제시된 방법을 주력 전차의 미래 기술 예측 문제에 적용한 결과 CCCA를 이용한 순위선정방법이 실제 실현된 기술 수준과 비교했을 때 통계적으로 가장 작은 오차율을 보였다.

• Journal of information and communication convergence engineering
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• 제2권2호
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• pp.61-66
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• 2004

This paper presents a way to maximize transmission efficiency and reception ability through transmission diversity technology, which can be adapted to wireless multimedia Wireless LAN system. The presented method is a comparative analysis between a case where parameter a for time average is 0.3.1 with consideration of channel presumption with two types of rms delayed spread, which is 50nsec. 150nsec, for the performance analysis of STTC (Space-Time Trellis Code) adopting time-space ciphering method appropriate for MIMO channel, and performance in the case where presumed channel value from long training column section is applied to according frame in a single frame. The result showed that BER brought SNR improvement of l.0dB in $10^{-3}$ when a was 0.3 than adopting only the long training column, and showed increase of general performance improvement for the sake of time average rather than the case without.

• 한국실내디자인학회논문집
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• 제20권5호
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• pp.170-177
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• 2011

Recently, there has been increasing concern for green growth and environment-friendly construction work is being revitalized; hereupon this study is going to understand the present situation of environment -friendly features of the apartment house through the case study of environment-friendly apartment house in and outside the country, and to suggest the developmental direction of the domestic apartment house. First, this study is to look into respective environment-friendly factors by considering the theoretical background of environment-friendliness and certification of environment-friendly structures, and analyzing the cases of apartment house in and outside the country. This study selected as the survey target the apartment buildings located at 5 places which were completed after 2003 and obtained the domestic 'Green Building Certification Criteria'[hereinafter, GBCC] in metropolitan areas in domestic cases and the survey target to the apartment building at 5 places which were completed after 2003 and obtained the US 'Leadership in Energy and Environment Design' [hereinafter, LEED] in overseas cases. For comparative analysis of each case, this study evaluated each case twice using GBCC and LEED to be more objective in evaluation. As a result, it was found that domestic cases focused on nature-friendly landscaping and the use of the certified products while overseas cases focused on minimizing the environmental impact such as raising the energy reduction ratio and reducing water resources and consumption of resources. Accordingly, there seems to be a need for practical energy-reduction & resources-saving scheme in order for domestic environment-friendly apartment buildings to reach the level of the LEED certification.

• 한국유기농업학회지
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• 제21권4호
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• pp.501-522
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• 2013

This study has performed comparative analysis on benefit indicators in agricultural irrigation and drainage project cases between Korea and Japan. The irrigation and drainage project with publicity should do economic analysis of direct benefit factors as well as indirect benefit factors. However, traditional economic evaluations are used that benefit factors are lack of consistency and focused on direct benefits. Therefore, the purpose of this study was to develop indicators for the economic evaluation of irrigation and drainage projects. We conducted a case study between Korea and Japan. The resulting benefit factors was divided into direct factors and indirect factors. The direct benefit factors were increase in income, cost savings. The indirect benefit factors were protection of property due to flooding, agricultural promotion, aesthetic improvement. The implications of this study are that the indicators of economic analysis can be evaluated and easily applied. Moreover, these indicators could promote the feasibility of economic analysis.

• 대한조선학회논문집
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• 제43권4호
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• pp.484-493
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• 2006

Recently, direct load analysis using ship motion program is required to confirm structural safety for the Post-Panamax class large container carrier. However, there is no exact comparative study data for structural response between 20 and 30 wave load. So, in this paper, to compare the hull girder stress response between 20 versus 3D wave load calculation method, direct load analysis and global F.E analysis have been performed for three kinds of large container vessels using each 20 and 30 wave load calculation program. The results of 2D wave load RAO(Response Amplitude Operator) of each dominant load parameter(vertical, torsional and horizontal moment) are generally bigger than that of 30 results, especially in vertical wave bending moment. And the results of structural analysis based on the equivalent design wave method shows that there is a big difference in view of stress, but the stress distribution is very similar for each wave load case.

• 한국산업보건학회지
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• 제32권2호
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• pp.89-101
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• 2022

Objectives: By comparing and examining how important issues concerning industrial health information for workers are viewed in other advanced countries, it is intended to ascertain problems in the approach found in Korean legislation and obtain legal and policy implications. Methods: The results of a survey were introduced and analyzed through a comparative method for each case after investigating in detail what and how important issues surrounding workers' right to know industrial health information are reflected in the legislation of Germany, the U.S., the U.K., and Japan. Based on the results of this comparative analysis, theoretical and policy implications and legal policy improvement tasks were drawn to strengthen workers' right to industrial health information for each case in Korea. Results: For access to industrial health information, most of the other advanced countries clearly stipulate a right to access for current and past workers and/or their representatives. As a result, workers or their representatives do not need to use the Information Disclosure Act to access exposure records, and there is no debate over the Information Disclosure Act. In other words, industrial health information is focused on ensuring free access to workers or their representatives and is not interested in reporting it to the government. Conclusions: In order to strengthen workers' right to know about industrial health, it is most important to address the legal issues related to this right, which is considered insufficient by comparative law. This should start with a concrete and effective definition of what and how to guarantee workers' rights to industrial health, such as the right to freely access industrial health information, including for retired workers and bereaved families of deceased workers.