• Proceedings of the KSMRM Conference
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• 2002.11a
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• pp.132-132
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• 2002

Purpose： To investigate whether or not acupuncture of GB34 produces a significant response of the modulation of somatomotor areas by functional magnetic resonance imaging (fMRI) study. The acupoint, GB34, located in the back of the knee, is known to be effective in recovering motor function after stroke.

• JSTS:Journal of Semiconductor Technology and Science
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• v.9 no.4
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• pp.198-204
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• 2009

Inductive peaking using T-coils has been widely used in broadband I/O interfaces. In this paper, we analyze technical effects and limitations of the T-coil, and discuss several methods that can overcome these restrictions and improve the practicality of the T-coil. In particular we also propose and verify a circuit topology which can further extend bandwidth beyond the limit that conventional T-coil can achieve, and transfer 20 Gb/s data without noticeable distortion.

• Annual Conference on Human and Language Technology
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• 2021.10a
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• pp.419-422
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• 2021

본 논문은 한국어와 영어 코퍼스 93GB를 활용하여 구축한 대형 사전학습기반 언어모델인 KE-T5를 소개한다. KE-T5는 한국어와 영어 어휘 64,000개를 포함하는 대규모의 언어모델로 다양한 한국어처리와 한국어와 영어를 모두 포함하는 번역 등의 복합언어 태스크에서도 높은 성능을 기대할 수 있다. KE-T5의 활용은 대규모의 언어모델을 기반으로 영어 수준의 복잡한 언어처리 태스크에 대한 연구들을 본격적으로 시작할 수 있는 기반을 마련하였다.

• Kyungpook Mathematical Journal
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• v.55 no.3
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• pp.531-540
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• 2015

If T is an unbounded hyponormal operator on an infinite dimensional complex Hilbert space H with ${\rho}(T){\neq}{\phi}$, then it is shown that T satisfies Weyl's theorem, generalized Weyl's theorem, Browder's theorem and generalized Browder's theorem. The equivalence of generalized Weyl's theorem with generalized Browder's theorem, property (gw) with property (gb) and property (w) with property (b) have also been established. It is also shown that a-Browder's theorem holds for T as well as its adjoint $T^*$.

• Korean Journal of Organic Agriculture
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• v.29 no.1
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• pp.97-109
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• 2021

Plant parasitic nematodes are causing significant damage in crop production. There is a need to develop eco-friendly nematicide that reduces the damage of nematode and has little effect on the environment and human. In this study, we have isolated a substance having nematicidal activity from Ginkgo biloba L. outer seedcoat. Studies of G. biloba L. outer seedcoat are insufficient compared to the seed and leaves due to their odor and toxicity. The dried G. biloba L. outer seedcoat was extracted with dichloromethane:methanol (1:1) and fractionated into hexane, ethyl acetate and H₂O. Four steps TLC were performed from EtOAc fraction to purely isolate GB4-3 with nematicidal activity. To compare nematicidal activity, G. biloba L. seedcoat methanol extract and purified GB4-3 were investigated in terms of treatment concentration and time. As a result, the nematicidal activity increased with concentration and time. In the place treated with 20 ㎍/mL of crude G. biloba L. seedcoat MeOH extract, strong activity appeared after 12 hours, and 46% nematicidal activity shown after 18 hours. About 69% of nematicidal activity was confirmed in the place where GB4-3 purified from outer seedcoat was treated with 20 ㎍/mL, and the possibility of development as nematicide was very high. This study could be used as a basic data for the development of a nematode preparation from G. biloba L. outer seedcoat.

• Proceedings of the KIPE Conference
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• 2016.07a
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• pp.425-426
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• 2016

본 논문에서는 중국 인증제도(CCC, CQC)의 의의와 절차 그리고 전기차 구동 모터 시스템의 인증해당여부 및 관련 규격을 분석한다. 분석한 규격은 중국 국가 규격인 GB/T 18488(Drive motor system for electric vehicles)을 해석한 결과이다.

• Electronics and Telecommunications Trends
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• v.13 no.6 s.54
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• pp.1-12
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• 1998

미래의 고도화 된 정보통신 서비스를 가능하도록 하기 위해 테라비트(Tb/s)급 광전송시스템의 구축이 예상되고 있으며, 이를 달성하기 위한 핵심기술로서 초고속 전자소자의 설계 및 제작기술의 개발이 매우 중요한 현안이다. 본 논문에서는 차세대 테라비트 광전송시스템 구현에 필요한 20-40Gb/s의 전송속도를 갖는 초고속 전자소자의 국내외 연구동향을 분석하고 앞으로의 기술 추세를 예견하였으며, 관련된 핵심 반도체 소자기술을 설명하였다.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2013.11a
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• pp.115-116
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• 2013

본 연구에서는 유기인 유도체 중 생리활성이 커서 독성이 있는 화합물의 구조를 분석하였다. 5-[(b-monoaza-15-crown-5)ethyloxy]-2iodosbenzoic acid의 IBA 촉매를 합성하여 그 반응성을 p-nitrophenyldiphenylphosphate (PNPDPP)와 Isopropyl methylphosphonofluoridate (Sarin GB), Pinacolyl methylphosphonofluoridate (Soman, GD)를 기질로 하여 연구하였다. PNPDPP 가수분해 반응에서는 긴 알킬작용기로 친유성을 증가시킨 촉매가 더 상전이 촉매로 작용함이 확인되었다.(t1/2 = 5 sec, pH = 8.07)

• Journal of Information Technology Services
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• v.16 no.4
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• pp.213-222
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• 2017

The advancement of ICT is changing every field of life. It becomes possible with the penetration of personalized devices, that is, smartphone. The boom of IoT will come when there exist diversified and personalized services. In general, we might admit that it is needed that the more privatized services than the overall serviced. Jeju Island is the only one special self-governing province in Republic of Korea and deserves to be proud of the unique culture from its long historical background. One of the very regional culture which performs by women divers, Haenyeo activity or culture, was registered as Intangible Cultural Heritage. When authors were researched Jeju Haenyeo as a worthy reserving service, we recognized that it has never considered to use any point of ICT/IoT yet. Because IoT holds the high potentiality to create any service scenario between interesting groups. We will design a few services for Haenyeo which covers their job territory or daily life, adopts up-to-date technology or method such as sensored network, smart contract and App/Web. In this paper, we intent to show the simplicity and easiness of the application of IoT not to much inconspicuous target. So, we suggest a specialized IoT service for the reservation and promotion of Haenyeo Culture. This service would be composed of sensors, IoT network and App/Web at home and office. This service can be used among interesting groups : Haenyeo, policy maker, manufacturer, service provider and culture consumer.

• Journal of Magnetics
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• v.6 no.4
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• pp.109-118
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• 2001

A computer simulation, utilizing the Landau-Lifshitz-Gilbert equation, of ultra-high- density recording on continuous longitudinal media is carried out. The two important features of this work are the use of a planar-type head, which enables a high write field of 14183 Oe ts be generated at the center of the recording medium, and the media with very high coercivities up to 13010 Oe. From a systematic investigation, it is found that the optimum write field is higher than the medium coercivity by only 3400 Oe over a wide coercivity range. This new finding allows one to write an a medium with a very high coercivity by using a planar-type head. It is demonstrated that a reasonably good bit pattern with a bit density of 605 kfci is generated on the medium with a coercivity of l1720 Oe, and, combined with a high track pitch density of 100 ktpi, a recording density of 60 Gb/in$^2$can be obtained in a single layer medium. With an improved write- head designs even a higher recording density of 75 Gb/in$^2$may be possible since comparison of the results for the bit pattern from the present head profile and the ideal Lindholm profile indicates an increase in the track pitch density of about 27%. Even at this density, the thermal stability parameter (KV/kT) at room temperature is high enough (60) to provide ample room for thermal stability.