• 환경생물
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• 제30권2호
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• pp.77-89
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• 2012

With the advent of the genomics era powered by DNA sequencing technologies, life science is being transformed significantly and biological research and development have been accelerated. Environmental biology concerns the relationships among living organisms and their natural environment, which constitute the global biogeochemical cycle. As sustainability of the ecosystems depends on biodiversity, examining the structure and dynamics of the biotic constituents and fully grasping their genetic and metabolic capabilities are pivotal. The high-speed high-throughput next-generation sequencing can be applied to barcoding organisms either thriving or endangered and to decoding the whole genome information. Furthermore, diversity and the full gene complement of a microbial community can be elucidated and monitored through metagenomic approaches. With regard to human welfare, microbiomes of various human habitats such as gut, skin, mouth, stomach, and vagina, have been and are being scrutinized. To keep pace with the rapid increase of the sequencing capacity, various bioinformatic algorithms and software tools that even utilize supercomputers and cloud computing are being developed for processing and storage of massive data sets. Environmental genomics will be the major force in understanding the structure and function of ecosystems in nature as well as preserving, remediating, and bioprospecting them.

• Journal of the Korean Data and Information Science Society
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• 제14권3호
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• pp.553-559
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• 2003

The reliability modeling of distributed systems requires a good understanding the reliability of the components. For thousands of web users, competitiveness in web services means a successful presence on the web. Mean time between failures of a web site on SOAP12/HTTP is considered, where SOAP12 is a protocol intended for exchanging structured information in a decentralized, distrbuted environment. Data were collected from statlab.cam.ac.uk/webstat/stat.html via the internet.

• 한국정보시스템학회지:정보시스템연구
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• 제15권3호
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• pp.131-157
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• 2006

A lack of trust in the technical and institutional environments surrounding the web can hinder e-commerce adoption, because Internet social cues are minimal and trust is difficult th establish. Web vendors must act purposefully to overcome consumer perceptions of uncertainty and risk by building trust-both in their own web sites and in the broader Internet environments. Trust makes consumers comfortable by sharing personal information making purchases, and acting on web vendor advice-behaviors essential to wide-spread adoption of e-commerce. Understanding the nature and antecedents of trust is, therefore, a major issue for both Internet researchers and practitioners. Prior research on e-commerce trust has used diverse, incomplete, and inconsistent definitions of trust therefore, making it difficult to compare results across studies. This study tried to and the empirical relationships among the trust-related factors on the usage of Internet shooing mall. The model includes five high-level constructs-disposition to trust institution-based trust trusting beliefs, trusting intention and environmental factors. The results showed that the disposition to trust and the environmental factors had a significant effect on the web site trust however, their effect was not consistent Moreover, the model suggested in this study need to be extended including with the more sociological factors and results in this study required to be verified with those extended model.

• Smart Structures and Systems
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• 제15권1호
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• pp.151-167
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• 2015

Instrumentation on structural health monitoring system imposes critical issues for applying the structural monitoring system to real world structures, for which not only on the configuration and geometry, but also aesthetics on the system to be monitored should be considered. To illustrate this point, two real world structural health monitoring systems, the structural health monitoring system of Shenzhen Vanke Center and the structural health monitoring system of Shenzhen Bay Stadium in China, are presented in the paper. The instrumentation on structural health monitoring systems of real world structures is addressed by providing the description of the structure, the purpose of the structural health monitoring system implementation, as well as details of the system integration including the installations on the sensors and acquisition equipment and so on. In addition, an intelligent algorithm on stress identification using measurements from multi-region is presented in the paper. The stress identification method is deployed using the fuzzy pattern recognition and Dempster-Shafer evidence theory, where the measurements of limited strain sensors arranged on structure are the input data of the method. As results, at the critical parts of the structure, the stress distribution evaluated from the measurements has shown close correlation to the numerical simulation results on the steel roof of the Beijing National Aquatics Center in China. The research work in this paper can provide a reference for the design and implementation of both real world structural health monitoring systems and intelligent algorithm to identify stress distribution effectively.

• 환경영향평가
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• 제8권4호
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• pp.47-57
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• 1999

본 연구는 G7 과제의 일환으로서, Internet상에서 운영될 수 있는 광역적 환경 관리 시스템의 개발에 목표를 두었다. 이러한 목적을 달성하기 위해서는 아직 더 많은 연구가 수행되어야 하지만, 예비적인 개발 성과를 다음과 같이 요약할 수 있다 : 1) 통합적 환경 정보 관리 시스템, 2) web 기반의 제어 엔진, 3) 지표수환경 관리 시스템, 4) 지하수환경 관리 시스템, 5) 하수도 및 시설 관리 시스템. 본 엔진의 핵심 방법론은 다양한 편미분 방정식의 해석에 있어서 각 미분항을 서술하는 범용적 다차원 유한요소 행렬이다. GUI 지향적인 web 기반의 시스템을 구축하기 위해 공간 정보 관리 시스템(ArcView) 및 Visual Basic이 폭넓게 사용되었다. 개발된 시스템들은 환경 문제의 복합적인 관리의 필요성으로 인해 매우 집약적인 프로그램으로 구성되었다. web 기반의 엔진은 환경관련 사업의 통합적인 관리를 위한 정책 결정 도구로 제공될 수 있을 것이다.

• 경영과정보연구
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• 제32권5호
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• pp.157-174
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• 2013

국내뿐 아니라 전 세계적으로 환경문제가 이슈화 되면서 저탄소 녹색성장이라는 수식어는 정치, 경제, 사회 등 전 영역에서 자주 사용되고 있다. 저탄소 녹색성장 정책으로 환경에 대한 관심이 증대되고 있으며, 정부는 환경보호와 환경관리를 위해 환경규제강화와 친환경정책을 함께 펴고 있다. 본 연구는 녹색기업과 환경규제위반기업간의 특성차이를 실증분석 하였다. 환경의식, 재무적 능력, 기업의 구조적 특성 및 기술적 특성 등 기업의 특성과 기업의 환경친화성과의 관계를 실증분석 하였다. 가설은 환경관리 담당자들과의 인터뷰와 기존연구를 바탕으로 설정하였으며 분석결과는 다음과 같다. 첫째, 녹색기업과 환경규제위반기업간의 특성관계에서 기존연구의 결과와 달리 환경의식의 대위변수인 지배주주지분율은 유의한 결과를 얻지 못하고 기각되었으나 ISO 14001 인증여부는 유의한 결과를 보이고 있어 환경성과에 영향을 주고 있음을 확인하였다. 둘째 기업의 재무적 능력은 녹색기업과 환경규제위반기업간의 특성에서 유의한 결과를 얻지 못하고 기각되었다. 이는 환경성과와 재무능력은 관련이 없다는 것으로 재무성과가 더 좋은 기업이거나 나쁜 기업일지라도 반드시 환경성과에 영향을 주는 것이 아니라는 것을 시사하고 있다. 셋째, 기업의 구조적 특성은 녹색기업과 환경규제위반기업간의 관계에서 기존연구와 다른 결과를 보여주고 있다. 자본집약도의 지표인 유형자산비중과 수출비중은 기각되었고 종업원비중은 유의한 결과를 얻었지만 기존연구와 반대의 결과로 종업원비중이 높은 기업이 환경규제를 위반한다는 결과를 보이고 있다. 넷째, 기술적인 능력이 환경성과에 영향을 준다는 유의한 결과를 얻었는데 그 결과는 기존연구와 같다는 것을 확인하였다. 즉 연구개발투자비중이 높을수록 환경규제를 준수한다는 것으로 확인되었는데, 이는 녹색기업이 환경규제위반기업보다 연구개발투자를 많이 하고 있으며 환경기술능력을 향상시켜 환경관리를 잘 하고 있음을 확인하였다.

• Molecular & Cellular Toxicology
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• 제2권1호
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• pp.11-14
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• 2006

In this study we attempted to develop a novel genomic method to selectively isolate target functional microbial genomes from environmental samples. For this purpose, stable isotope probing (SIP) was applied in selectively isolating organic pollutant-assimilating populations. When soil microbes were fed with $^{13}C-labeled $ biphenyl, biphenyl-utilizing cells were incorporated with the heavy carbon isotope. The heavy DNA portion was successfully separated by CsCl equilibrium density gradient. And the diversity in the heavy DNA was sufficiently reduced, being suitable for the current DNA microarray techniques to detect biphenyl-utilizing populations in the soil. In addition, we proposed a new way to get more genetic information by combining this SIP method with selective metagenomic approach. The increased selective power of these new DNA isolation methods will be expected to provide a good quality of new genetic information, which, in turn, will result in development of a variety of biomarkers that may be used in assessing ecotoxicology issues including the impacts of organic hazards, and antibiotic-resistant pathogens on human and ecological systems.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권9호
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• pp.2867-2881
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• 2022

This study investigates fashion Artificial Intelligence (AI) curation services to expand sustainable consumption. We analyzed the factors that affect the AI fashion curation service experience of women in their 20s and 30s using their clothes. An online survey was conducted from March 29, 2021, to June 4, 2021, for women of the previously mentioned age groups residing in the metropolitan area. Before answering the questionnaire, they installed the "Style Bot" application on their phone, took five or more photos of their clothes according to the manual provided by the application, stored them in a virtual wardrobe on the application, and then responded to the questionnaire using the AI recommended coordinating function. The effect of the properties of fashion AI curation service application on the use of clothes was investigated. Among the attributes of the fashion AI curation service application, convenience, speed, and usefulness were found to have a positive effect on the use of clothes, and promptness had no effect. Second, regarding the impact of clothing utilization on environmental sustainability, clothing utilization was found to have a positive effect on environmental sustainability. Third, environmental sustainability was found to have a positive effect on satisfaction. Fourth, clothing utilization had a positive effect on satisfaction. Thus, fashion AI curation service would help promote service development so that clothes could be used actively through an in-depth understanding of the properties of these services. Finally, the results of this study would contribute to promoting environmental sustainability.

• Smart Structures and Systems
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• 제31권6호
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• pp.573-583
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• 2023

Although unmanned aerial vehicles have been used to overcome the limited accessibility of human-based visual inspection, unresolved issues still remain. Onsite inspectors face difficulty finding previously detected damage locations and tracking their status onsite. For example, an inspector still marks the damage location on a target structure with chalk or drawings while comparing the current status of existing damages to their previous status, as documented onsite. In this study, an augmented-reality-based structural inspection system with onsite damage information marking was developed to enhance the convenience of inspectors. The developed system detects structural damage, creates a holographic marker with damage information on the actual physical damage, and displays the marker onsite via an augmented reality headset. Because inspectors can view a marker with damage information in real time on the display, they can easily identify where the previous damage has occurred and whether the size of the damage is increasing. The performance of the developed system was validated through a field test, demonstrating that the system can enhance convenience by accelerating the inspector's essential tasks such as detecting damages, measuring their size, manually recording their information, and locating previous damages.

• Journal of the Korean Data and Information Science Society
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• 제17권2호
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• pp.581-598
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• 2006

In many epidemiological and medical studies, a number of cancer mortalities in categorical classification may be considered as having Poisson distribution with person-years at risk depending upon time. The cancer mortalities have been evaluated by additive or multiplicative models with regard to background and excess risks based on several covariances such as sex, age at the time of bombings, time at exposure, or ionizing radiation, cigarette smoking habits, duration of smoking habits, etc. An interest herein is to examine an additive, synergistic, or antagonistic relationship between radiation exposures and cigarette smoking habits for cancer mortalities. The results revealed a highly significant antagonistic in uence for cancer mortalities from all non-hematologic findings, lung and respiratory system with negative interaction between radiation exposures and cigarette smoking amounts.