• The Magazine of the IEIE
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• v.36 no.3
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• pp.53-62
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• 2009

• Journal of Ginseng Research
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• v.14 no.2
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• pp.107-111
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• 1990

Ginseng root explants and calli were cultured on modified Murashine and Skoog's media supplemented with different concentrations of organic or inorganic compounds and plant growth requlators to clarify the effects of chemical compositon and plant growth regulators in the medium on the growth of ginseng calli and the production of ginseng saponin. For optimum growth of ginseng calli, the concentrations of 2, 4-D and sucrose were in the range of 1 to 5 mg/l and 1 to 3%, respectively. And it was clarified that sucrose, nitrogen, phosphate, calcium, magnesium, plant growth regulators and their concentrations influcenced the relative biosynthesis of saponin in tissue cultures of Panax ginseng.

• Journal of information and communication convergence engineering
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• v.8 no.5
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• pp.502-507
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• 2010

Event driven service (EDS) is one of such services administrating different functions of multiple service providers according to the user situation. This paper first describes the service model of EDS, a User-centric Service for multiple service provider environments over the next generation networks. The multiple provider environments stimulates the unified identifier management, namely unified identification (U-ID), to enable users to be provided network services without awareness of multiple providers. Combining these two concepts, i.e., EDS and U-ID, the designed structure of EDS with U-ID and related procedures are given. Finally, the implementation results tested on Korea Advanced Research Network (KOREN) are described.

• Information and Communications Magazine
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• v.25 no.3
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• pp.42-47
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• 2008

현재 국제적으로 본격화되고 있는 미래인터넷기술의 개념을 실증시험하고 연구, 개발에 필수적인 대규모 네트웍 기반의 미래인터넷 테스트베드 구축동향을 살펴보고 우리나라가 보유하고 있는 네트웍 테스트베드인 KOREN(Korea Advanced Research Network)을 기반으로 하는 선도적인 미래인터넷 테스트베드 구축을 위한 활동에 대하여 소개하고자한다. 서론에서는 미래인터넷기술의 연구를 추진하게 된 각국의 환경과 동기 및 현재 전략적인 추진현황에 대하여 알아보고 추진계획 및 예산 규모에 대하여 기술한다. 또한 미래인터넷테스트베드의 요구사항에 대하여도 소개한다. 본론에서는 가장 잘 정리된 미국 GENI의 미래인터넷테스트베드의 기능구조에 대하여 알아보고 우리나라가 미래인터넷기술을 본격적으로 시험하기 위하여 선도적으로 추진하고 있는 KOREN 기반의 미래인터넷테스트베드에 대하여 소개하고자 한다. 결론에서는 향 후 발전방향과 우리나라가 지향하여야 할 추진방향에 대하여 제안을 하고자 한다.

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2004.11a
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• pp.103-103
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• 2004

• Proceedings of the Zoological Society Korea Conference
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• 1999.10b
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• pp.168.1-168
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• 1999

No Abstract, See Full Text

• The Journal of Korean Institute of Communications and Information Sciences
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• v.37B no.10
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• pp.877-888
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• 2012

Network virtualization technology is a crucial research issue of Future Internet which pursues a service-oriented architecture so-called NaaS (Network as a Service) or SDN (Software Defined Network). Network virtualization is expected to play an important role in Future Internet researches as a network testbed technology which enables innovative protocols to be experimented independently on a common testbed environment. We propose a control framework in order to provide user defined topology and bandwidth services with network virtualization and to separate and manage multiple-user traffics in a small and medium scale - single domain research network. The proposed framework (VIMS; Virtual network Integrated control and Management System) supports testbed expansions without any changes of heterogeneous virtual network support equipments through accommodation of each equipment's control plane. The framework shows a feasibility through applied to KOREN and we describe the differences and further study directions for improvement the framework comparing with GENI control framework.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.11a
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• pp.1017-1018
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• 2010

• Korean Journal of Veterinary Service
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• v.14 no.1
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• pp.13-17
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• 1991

This studies were carried out to investigate the changes of blood pictures within 24hrs after birth in Korean native calves. The hematologic values were examined from 300 heads healthy Korean native calves in the area of western farm of Chungnam province. The results obtained are summarized as follows : 1. $Mean{\pm}SD$ values of serum total protein contents within 24 hrs after birth in Korean native calves were $8.42{\pm}0.92g$ / dl and 48.14{\pm}0.93g$ / dl, respectively. 2. $Meant{\pm}SD$ values of RBC count, WBC count, PCV and Hb contents within 24 hrs after birth in Koren native natives were 49.97{\pm}2.56{\times}10^3$ / mm^3$ and $9.88{\pm}2.93{\times}10^3/ mm^3, $ 439.56{\pm}15.42%$ and 441.66{\pm}7.09 %, $$ 12.79{\pm}1.59g$ / dl and 13.$63{\pm}1.87g$ / dl, respectively. 3. 4Meant{\pm}SD$ values of MCV, MCH and MCHC within 24 hrs after birth in Koren native calves were $43.41{\pm}3.09{\mu}mm^3$ and $43.88{\pm}3.31{\mu}mm^3, $ $14.05{\pm}1.22pg $and 414.36{\pm}1.6pg, $ $32.46{\pm}2.47g$ / dl and 432.96{\pm}3.17g$ / dl, respectively.

• Journal of Korean Institute of Industrial Engineers
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• v.28 no.1
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• pp.57-62
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• 2002

The semiconductor industry has continuously been looking for the ways to improve yield and to reduce manufacturing cost. The layout modification approach, one of yield enhancement techniques, is applicable to all design styles, but it does not require any additional resources in terms of silicon area. The layout modification method for yield enhancement consists of making local variations in the layout of some layers in such a way that the critical area, and consequently the sensitivity of the layer to point defects, is reduced. Chen and Koren (1995) proposed a greedy algorithm that removes defect sensitive area using via moving, but it is easy to fall into a local minimum. In this paper, we present a via moving algorithm using simulated annealing and enhance yield by diminishing defect sensitive area. As a result, we could decrease the defect sensitive area effectively compared to the greedy algorithm presented by Chen and Koren. We expect that the proposed algorithm can make significant contributions on company profit through yield enhancement.