• Molecules and Cells
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• 제39권9호
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• pp.705-713
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• 2016

The efficiency of Agrobacterium-mediated transformation in plants depends on the virulence of Agrobacterium strains, the plant tissue culture conditions, and the susceptibility of host plants. Understanding the molecular interactions between Agrobacterium and host plant cells is crucial when manipulating the susceptibility of recalcitrant crop plants and protecting orchard trees from crown gall disease. It was discovered that Arabidopsis voltage-dependent anion channel 1 (atvdac1) mutant has drastic effects on Agrobacterium-mediated tumorigenesis and growth developmental phenotypes, and that these effects are dependent on a Ws-0 genetic background. Genetic complementation of Arabidopsis vdac1 mutants and yeast porin1-deficient strain with members of the AtVDAC gene family revealed that AtVDAC1 is required for Agrobacterium-mediated transformation, and there is weak functional redundancy between AtVDAC1 and AtVDAC3, which is independent of porin activity. Furthermore, atvdac1 mutants were deficient in transient and stable transformation by Agrobacterium, suggesting that AtVDAC1 is involved in the early stages of Agrobacterium infection prior to transferred-DNA (T-DNA) integration. Transgenic plants overexpressing AtVDAC1 not only complemented the phenotypes of the atvdac1 mutant, but also showed high efficiency of transient T-DNA gene expression; however, the efficiency of stable transformation was not affected. Moreover, the effect of phytohormone treatment on competence to Agrobacterium was compromised in atvdac1 mutants. These data indicate that AtVDAC1 regulates the competence of Arabidopsis to Agrobacterium infection.

• 한국CDE학회논문집
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• 제13권2호
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• pp.89-97
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• 2008

Today's manufacturing environment is becoming a distributed manufacturing process in which a unique and specialized technological background is required in specific domains rather than having a single company execute all the manufacturing processes. This phenomenon is especially true in the automotive industry, where the sharing of product data between companies is rampant; however, this kind of interoperability causes many problems. When each company has its own method of managing product data, the sharing of product data in a distributed environment is a major problem. A data translator module or a data mapping module had to be developed for the exchange of data in heterogeneous systems of product data management (PDM); moreover, this type of module must be continually changed and improved due to the fact that PDM systems change for many reasons. In addition, the growth in corporate partnerships deepens the burden of developing and maintaining this module and creates further data exchange problems due to the increasing complexity of the system. This paper introduces a way of exchanging product data among heterogeneous PDM systems through the use of OpenPDM, which is a kind of virtual data warehouse. The implementation of a PDM integrating system is also discussed with respect to the requirement for a logical integration of product data which are physically distributed.

• Safety and Health at Work
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• 제5권2호
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• pp.97-105
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• 2014

Background: Prolonged standing has been hypothesized as a vital contributor to discomfort and muscle fatigue in the workplace. The objective of this study was to develop a decision support system that could provide systematic analysis and solutions to minimize the discomfort and muscle fatigue associated with prolonged standing. Methods: The integration of object-oriented programming and a Model Oriented Simultaneous Engineering System were used to design the architecture of the decision support system. Results: Validation of the decision support system was carried out in two manufacturing companies. The validation process showed that the decision support system produced reliable results. Conclusion: The decision support system is a reliable advisory tool for providing analysis and solutions to problems related to the discomfort and muscle fatigue associated with prolonged standing. Further testing of the decision support system is suggested before it is used commercially.

• 정보관리연구
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• 제32권2호
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• pp.26-39
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• 2001

효과적인 정보검색 도구로 활용되는 시소러스, 분류표 등의 통제어휘집들은 동일한 개념이나 의미를 표현하는데 서로 다른 어휘를 사용하고 있다. 이러한 동일 개념에 대한 용어 표현차이로 인한 정보의 검색 및 통합문제를 해결하기 위하여 미국국립의학도서관은 통합의학언어시스템(Unified Medical Language System : 이하 UMLS)을 개발하였다. UMLS 개발은 1986년부터 시작된 장기 프로젝트로서 2001년판 UMLS는 메타시소러스, 의미망, 전문가 사전의 세가지 요소로 구성되어 있다. 본고는 UMLS의 개발배경과 구성요소 및 PubMed, NLM Gateway에서의 적용사례에 대해 고찰하였다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2014년도 추계 학술논문 발표대회
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• pp.216-217
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• 2014

Science & Technology(S&T) is the most important thing to attain competitiveness in the 21st century. Our traditional S&T policies have been forcused on hardware infra structure. We should consider software of S&T to enhance effectiveness. S&T Should be had a correct understanding method of the creation for S&T culture. It implies that S&T policy should consider nonmaterial factors which include social, environmental and culture. Under this background, The purpose of this paper is to seek new S&T policy. Therefor this paper deals with how we can prepare for the future S&T policy and classify the change of S&T policy of korea. In addition, Recent construction sector integration and fusion technologies in various areas of research and planning system is being maintained by the system. Past experience of conservative management in this emerging technology-driven technology commercialization in management of technology through the convergence of various technologies and to find synergies to secure the future of construction technology because it is a need.

• 한국가정과교육학회지
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• 제14권2호
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• pp.1-14
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• 2002

The goal of the study is to find the necessary measures to facilitate a desirable Technology and Home Economics curriculum by reflecting the Perception and needs of the teachers from the perspective of the curriculum content. professionalism of the teacher realistic operations of the school . and the administration of the school system. The results obtained from the research are as follows : 1) The background knowledge and characteristics of the two curriculums are different. and in addition there is a negative perception due to the fact that it is hard to facilitate a class with just one teacher. 2) The issues that were most serious to teachers were professionalism of the teacher. qualification of the teachers. and teaching method. Also the teachers lacked in confidence in teaching and the curriculum itself. 3) In regards to qualifications of the teacher the teachers requested that teachers should have single qualification in 'Technology(or Home Economics)'or dual qualifications in both 'Technology' and 'Home Economics'. As for teaching methodology responded that from the teacher and student perspective the teaching should be divided whereas from the school's perspective the responsibility should be Put on a single teacher. 4) Teachers responded that from the perspective of the teacher, parent or student Technology and Home Economics should be separated into two subjects.

• 정보화연구
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• 제9권3호
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• pp.303-321
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• 2012

시나리오 방법론은 빠르고 복잡하게 변화화는 경영환경 하에서 기업을 지원해 주는 가장 효과적인 툴 중에 하나이다. 특히, 시나리오 방법론은 불확실한 상황에서 의사결정시 보다 효과적이다. 이 논문은 기업의 관리자들이 어떻게 시나리오 기반의 기업 전략을 수립 할 수 있는지 보여 준다. 한국의 무선 통신 서비스 시장의 가상 이동 망 사업자 (MVNO: Mobile Virtual Network Operator)의 사례를 들어 설명하였다. 또한, 시나리오 기반 관리에 대한 이론적 고찰을 하였으며, 전략적 관리 프로세스에 시나리오 방법론을 통합하는 방법론에 대해 논의하였다. 특히, 시나리오에서 상황을 결정짓는 다양한 중요 요소들과 흐름들을 새롭게 고안된 방법론을 통하여 발견하였고, 이를 통해 새로운 전략들을 도출하였다.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2007년도 하계학술대회 논문집 Vol.8
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• pp.377-377
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• 2007

A simplified integration process including packaging is presented, which enables the realization of the portable fluorescence detection system. A fluorescence detection microchip system consisting of an integrated PIN photodiode, an organic light emitting diode (OLED) as the light source, an interference filter, and a microchannel was developed. The on-chip fluorescence detector fabricated by poly(dimethylsiloxane) (PDMS)-based packaging had thin-film structure. A silicon-based integrated PIN photo diode combined with an optical filter removed the background noise, which was produced by an excitation source, on the same substrate. The active area of the finger-type PIN photo diode was extended to obtain a higher detection sensitivity of fluorescence. The sensitivity and the limit of detection (LOD S/N = 3) of the system were $0.198\;nA/{\mu}M$ and $10\;{\mu}M$, respectively.

• Current Optics and Photonics
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• 제2권2호
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• pp.119-124
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• 2018

The errors in retrieved aerosol backscattering coefficients due to different lidar ratios are analyzed quantitatively in this paper. The actual calculation shows that the inversion error of the aerosol backscattering coefficients using the Fernald backward-integration method increases with increasing inversion distance. The greater the error in the lidar ratio, the faster the error in the aerosol backscattering coefficient increases. For the same error in lidar ratio, the smaller actual aerosol backscattering coefficient will get the larger relative error of the retrieved aerosol backscattering coefficient. The errors in the lidar ratios for dust or the cirrus layer have great impact on the retrievals of backscattering coefficients. The interval between the retrieved height and the reference range is one of the important factors for the derived error in the aerosol backscattering coefficient, which is revealed quantitatively for the first time in this paper. The conclusions of this article can provide a basis for error estimation in retrieved backscattering coefficients of background aerosols, dust and cirrus layer. The errors in the lidar ratio of an aerosol layer influence the retrievals of backscattering coefficients for the aerosol layer below it.

• Journal of Acupuncture Research
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• 제36권1호
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• pp.1-11
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• 2019

Models of traditional Chinese medicine (TCM) are still difficult to grasp from the view of a Western-cultural background. For proper integration into science and clinical research, it is vital to think "out of the box" of classical sciences. Modern sciences, such as quantum physics, system theory, and information theory offer new models, that reveal TCM as a method to process information. For this purpose, we apply concepts of information theory to propose a "Chinese black box model," that allows for a non-deterministic, bottom-up approach. Considering a patient as an undeterminable complex system, the process of getting information about an individual in Chinese diagnostics is compared to the input-process-output principle of information theory and quantum physics, which is further illustrated by Wheeler's "surprise 20 questions." In TCM, an observer uses a decision-making algorithm to qualify diagnostic information by the binary polarities of "yang" (latin activity) and "yin" (latin structivity) according to the so called "8 principles" (latin 8 guiding criteria). A systematic reconstruction of ancient Chinese terms and concepts illuminates a scattered scientific method, which is specified in a medical context by Latin terminology of the sinologist Porkert [definitions of the Latin terms are presented in Porkert's appendix [1] (cf. Limitations)].