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PHOTOMORPHOGENIC MUTANTS OF TOMATO

  • Kendrick, Richard E.
    • Proceedings of the Botanical Society of Korea Conference
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    • 1994.09a
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    • pp.41-51
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    • 1994
  • Tomato (Lycopersicon esculentum Mill.) has been chosen as a model species for the study of hotomorphogenesis. The aurea (au) and yellow-green-2 (yg-2) mutants which are severely photochrome deficient appear to be phytochrome chromophore mutants. Mutants modified with respect to specific members of the phytochrome gene family: the far-red light-insensitive mutant (fri, for phytochrome A) and the temporarily red light-insensitive mutant (tri, for phytochrome B1) have been identified. Mutants that exhibit an exaggerated phytochrome response are putative transduction-chain mutants affecting an amplification step in phytochrome signal transduction. These mutants are being used to understand the complexities of juvenile anthocyanin in the hypocotyl during seedling de-etiolation.

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A Comparative Analysis of Technology Foresight Activities in Korea and Some OECD Countries (국내 . 외 기술포사이트 활동 비교분석)

  • 엄기용;박태웅;황호영
    • Journal of Technology Innovation
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    • v.8 no.1
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    • pp.1-30
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    • 2000
  • This paper compares technology foresight activities of Japan, Germany, Britain, France, Australia, and the Netherlands with those of Korea in terms of their motives and purposes, procedures and methods, and utilization of foresight results. From the comparison, it has been found that although the foresight programs were started from similar motives and purposes, different approaches were adopted from one another depending on the characteristics of national innovation systems, national S&T policy directions, and level of science and technology capabilities of the countries. On the basis of the lessons drawn from our study, some recommendations are made for future foresight activities in Korea: clarifying purposes of foresight activities, preparing utilization strategy at the planning stage, promoting participants' learning and methodological elaboration, and so forth. Implications for policy makers are also discussed.

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Application of Growth Models for Pigs in Practice -Review-

  • van der Peet-Schwering, C.M.C.;den Hartog, L.A.;Vos, H.J.P.M.
    • Asian-Australasian Journal of Animal Sciences
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    • v.12 no.2
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    • pp.282-286
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    • 1999
  • Growth of pigs is influenced by many factors. To assist pig producers in the evaluation of alternative feeding and management strategies growth models have been developed. In the Netherlands the Technical Model Pigfeeding (TMV) is developed. This model predicts the influence of feed intake, feed composition, genotype, sex and climate on growth, body composition, gross margin and mineral excretion of healthy growing/finishing pigs. The purpose of TMV is to support information services, feed companies, researchers and students. In addition to providing accurate predictions, a model should also be user-friendly and wishes of the user should be taken into account to stimulate application of the model in practice. In this paper, the theoretical background of TMV and a methodology to stimulate application of models in practice will be described.

The spectroscopic study of abnormal cells for the infrared femtosecond laser cell processing

  • Harink, Bjorn;Yoo, Byung-Heon;Lim, Hee-Won;Cho, Sung-Hak;Chang, Won-Seok;Kim, Jae-Gu;Whang, Kyung-Hyun
    • Proceedings of the Korean Society of Laser Processing Conference
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    • 2006.11a
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    • pp.46-47
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    • 2006
  • This study is about the spectroscopic characterization of abnormal cells in a macro to micro approach. In the first step a commercial UV-Vis apparatus is used, which is ultimately altered to the limits to decrease detection volume. In the ultimate stage an infrared femtosecond laser setup is used to measure on individual cells.

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Philosophy of Interactive e-Learning for Power Electronics and Electrical Drives: a Way from Ideas to Realization

  • Bauer, Pavol;Fedak, Viliam
    • Journal of Power Electronics
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    • v.10 no.6
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    • pp.587-594
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    • 2010
  • The paper reports about methodology at design of interactive e-learning modules that are suitable both for teaching and learning. They cover special topics of electrical engineering, starting from the fundamentals, through electrical machines, power electronics to the fields of controlled electromechanical energy conversion, like electrical drives, complex drive systems, application of drives, mechatronic systems, telemanipulation, and robotics. In the paper, the emphasis is devoted in detail to philosophy and realization of the modules from fields of Power Electronics and Electrical Drives. On several examples there are explained main principles and specialties at their development.

Microplastics in foods: the hazardous characteristics and risk on human health (식품 환경 오염 미세플라스틱의 인체 영향과 위해평가 동향)

  • Kang, Mi Seon;Kim, Hyun Jung
    • Food Science and Industry
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    • v.54 no.1
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    • pp.2-10
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    • 2021
  • Microplastics with a size of less than 5 mm have emerged as an important environmental and food safety issue, as they have been detected not only in marine but also in terrestrial ecosystem and drinking water. Although many studies have been conducted on the exposure of microplastics and the effects on human health, the lack of standardized experimental methods for microplastics has been reviewed as a major problem. In order to overcome this, European countries such as the Netherlands and Germany are conducting a project to develop detection methods for microplastics as well as to establish the risk assessment methodologies for microplastics. Being the microplastics suggested to have a substantially potential risk on human health, reliable risk assessments should be conducted considering the various sources of microplastics, chemical pollutants and biological factors. In addition, international standards and regulations should be applied.

일본(日本) 패션의 미적(美的) 특성(特性)에 관(關)한 연구(硏究) -<모드 자포니슴>을 중심(中心)으로-

  • Cho, Kyu-Hwa
    • Journal of Fashion Business
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    • v.11 no.4
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    • pp.232-246
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    • 2007
  • The purpose of this study is to investigate aesthetic characteristics and aesthetic consciousness of the style that European fashion(Paris, London, Netherlands) has accepted the since $19^{th}$ century. The mode Japonisme's development process in around $20^{th}$ century and 21st century has 6 characteristics as follows; 1. Accepting kimono as dressing gown 2. Accepting kimono as Japanese style's objet of Japanese taste 3. Accepting Japanese textile's skills, patterns, and asymmetry. 4. Accepting kimono's formative nature : flat pattern, flexibility, style etc. 5. Shocking of Japanese style's beauty 6. Accepting characters and casual wear Japanese aesthetic consciousness expressed on unconstructed design or deconstructed design that is the aesthetic characteristic of Japanese fashion is , , and the aesthetic consciousness expressed on Zen(Seon) style, cartoons of character fashion, and costume play is .

Aspects of Electrohydrodynamic Instabilities at Polymer Interfaces

  • Russell, Thomas P.;Lin, Zhiqum;Schaffer, Erik;Steiner, Ullrich
    • Fibers and Polymers
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    • v.4 no.1
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    • pp.1-7
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    • 2003
  • Electrospinning is emerging as a simple means of producing fibers with diameters ranging from 0.02 $\mu\textrm{m}$ to many microns. Electrospinning, however, relies on the force generated by an electric field on the surface of a polymer solution to either enhance instabilities in a thinning jet or to rapidly elongate a jet of polymer solution form a nozzle. In this article the fundamental physics and fluid dynamics on the subject matter are described, and tome of the relevant parameters in electrodynamic instabilities at polymer interfaces are discussed in some detail.

A Study on the Risk Assessment for Oil Immersed Transformer of Subway with FN curve (지하철 유입 변압기의 FN 선도를 이용한 위험도 평가 연구)

  • Choi, Seung Hyeok;Lee, Jong Woo
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.63 no.8
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    • pp.1152-1158
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    • 2014
  • In Modern society, various important systems is operated such as nuclear plant, chemistry industry, railway system and so on. But these systems can cause high risky accidents. Hence, these systems are required to ensure the individual and societal risk criteria. In this paper, we reviewed EU risk criteria which is already operated in UK and Netherlands, then we proposed acceptable risk criteria and estimated risk of oil immersed transformer for subway with FN curve.

A Review of Wetland Policies and Related Guidelines of Leading Nations and Korea with Emphasis on Creation of Artificial Wetlands

  • Lee, Yong-Hee;Lee, Mi-Jin
    • Ocean and Polar Research
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    • v.24 no.1
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    • pp.93-114
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    • 2002
  • Legal regimes of major countries actively involved in wetland programs including USA, Japan, Germany, Netherlands, and Denmark, show that these leading nations have developed their own legal regimes and policies for the conservation and restoration of wetlands since early 1990s. The main feature of their position is to preserve, create and restore wetlands, including tidal flats. However, this approach, so called 'mitigation' policy, is thus far, not a fully established policy but an evolving one. For Korea, there are only a few laws and policies which hint at the importance of creating coastal wetlands as a conservation measure, however, most of those systems only exist as vague provisions which lack any tangible and compulsory implementing procedures and technical guidelines. It seems that it is necessary to strengthen the legal measures for conserving coastal wetlands in Korea including specifying economic assessment methods and funding sources for the creation, restoration and rehabilitation of tidal flats to firmly establish a national wetland mitigation policy.