• Proceedings of the Korean Fiber Society Conference
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• 1998.10a
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• pp.57-60
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• 1998

전도성 고분자들은 그 도전성과 제전성에 주목을 받아 다양한 공액계에 유래하는 많은 기능이 발견되면서 가공성과 안정성이 개선된 새로운 폴리머가 출현되어 다양한 용도 전개가 실현되고 있다. 특히 전도성을 지닌 의류소재 개발을 위한 다양한 고분자들 중 최근 합성이 쉽고 가격이 싸며 우수한 전도도와 물성을 부여하는 Polyaniline에 관한 관심이 집중되고 있어 이에 관한 활발한 응용 연구가 진행되고 있다. (중략)

• 프린팅코리아
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• v.10 no.5
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• pp.114-119
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• 2011

지난 4월 9일부터 13일까지 중국 광저우 둥관현대국제전람센터에서 진행된 프린트차이나 2011전시회는 지난 1회 대회에 비해 높아진 관심을 받으면서 참가사와 관람객이 크게 늘어난 가운데 성황리에 막을 내렸다. 이번 전시회 기간 동안 각종 이벤트가 다양하게 열렸으며 주최 측은 12만 평방미터에 달하는 넓은 지역에서 각종 행사가 진행되었는데 이는 지난 전시회에 비해 50%난 증가한 것이라고 밝혔다. 또한 18개국, 1261개사에 달하는 출품사는 전 대회에 비해 20.4%가 증가한 것이며 20개국 이상에서 관람객이 찾았다. 70여개국의 바이어들이 전시장을 찾는 등 프린트차이나 2011전시회를 찾은 사람은 20만명에 달해 지난 대회에 비해 20% 증가한 수치를 보였다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.21 no.3
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• pp.731-736
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• 1996

In this paper, we propose a modified Type-II HARQ system having adaptive power to channel and analyze its performance in terms of throughput and reliability. Its performance is also compared with Typd-I and Type-II HARQ ystems and is verified using computer simulations over AWGN and frequenyc-nonselective, slowly Rayleigh fading channels.

• Journal of the Korean Society of Safety
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• v.10 no.2
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• pp.77-83
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• 1995

An electrostatic reducer of a multi-pole high DC voltage applied type and a high frequency square wave voltage applied type have been studied to eliminate effectively and safely electrostatic charge on a dummy charged material. As a fundamental experiments, measurement were made on the decay time as a function of distance between electrostatic reducer and charged body, skewed angle of electrostatic reducer installed and wind speed of generated ions(＋ or －) by electrostatic reducer with high DC voltage and high frequency square wave voltage. Based oil the results above, a appropriate installation and method were produced as a trial for factory.

• Proceedings of the KIEE Conference
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• 1995.07c
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• pp.1202-1204
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• 1995

In this paper, We investigated a charge elimination by using a needle electrode in order to prevent the electrification phenomena of insulating oil flowing by force at the internal transformer. In our experiment, We used Acryle and Teflon as the material of charge reducer and measured each of their streaming current and needle electrode current. As a result of experiment, We can explain that the current of needle electrode increase in proportion to insulation of charge reducer.

• Proceedings of the KIEE Conference
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• 1990.11a
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• pp.129-131
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• 1990

When insulating oil is flowed through a pipe, the electrostatic charge in the oil will be increased. Using inflammability oil, an electrostatic phenomena which may cause significantly problems as explosion must be circumvented by some methods. In this paper we made a new electrode which was applied AC field to the flowing oil for reducing electrostatic charge. Before we developed the new method of an electrostatic elimination, the electrification experiment was performed by using the same electrode which was supplied DC voltage to realize electrified conditions. As a result of this study, the effect of the electrostatic elimination could be observed.

• Journal of the Korean Society of Safety
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• v.29 no.6
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• pp.49-54
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• 2014

Electrostatic eliminators are essential in various areas of manufacturing industries to protect electrostatic hazards and to reduce inferior products. For ion sources used in the charge neutralizers, there are corona discharge, soft X-ray, and ultraviolet and glow discharge. Among them, corona discharge is generally used, because the corona discharge can easily and economically produce positive and negative ions including electrons in air at atmospheric pressure. But it is necessary to equip explosion-protection electrostatic eliminators wherever hazardous atmosphere. The electrostatic eliminators and their testing method of explosion-protection type have been developed in this research. The contents and scope of the research as follows; developing the type 'Ex s IIB T4' electrostatic eliminator of explosion-protection; developing the type 'Ex s d IIB T4' electrostatic eliminator of explosion-protection; developing the explosion-protection performance testing method of electrostatic eliminator for using AC power source.

• Textile Coloration and Finishing
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• v.1 no.1
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• pp.63-68
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• 1989

It has been attempted to improve the anti-static property of Nylon 6 by means of Vapor-phase polymerization of thiophene in Nylon 6/PVA blend films impregnated with aluminium chloride as an oxident. After Polymerization of thiophene for two hours in Nylon 6/PVA blend films the conductivity increased from $10^{-12}-10^{-13}S/cm\;to\;10^{-5}-10^{-7}$S/cm, and the conductivity of composite films increased with increasing the concentration of aluminium chloride, the content of PVA annd polymerization time of thiophene. Polythiophene introduced in Nylon 6/PVA blend films has been confirmed by FT-IR spectra and scanning electron micrographs.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 1995.11a
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• pp.361-364
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• 1995

The static charges are generated by streaming electrification phenomena when insulating oil flowing by force for the purpose of cooling at the internal of Ultra-high power transformer. In this thesis, their elimination method was studied. The falter represents a greet much electrification characteristics because falter has large interfaces with liquid. In this paper, the streaming-electrification phenomena of insulating oil by metal filter were measured by mesh number, oil flow rate, oil temperature and a kind of mesh and The effect of charge elimination by metal filter generated minus ion was measured.

• The Science & Technology
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• v.12 no.3 s.118
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• pp.33-40
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• 1979

한국과학기술단체총연합회와 재구한국화학기술자연합회가 공동주최하는 제6차 국내외 한국과학기술자 종합학술대회(대회장ㆍ민관식)가 오는 4월 8일부터 19일까지 12일간에 걸쳐 열린다. 개회식은 KIST 존슨강당에서 거행하고 학술발표회는 연세대 캠퍼스에서 갖기로 한 이번 종합학술대회에는 재구과학자 54명과 국내과학자 2,000여명이 참가할 예정으로 있어 매머드학술제전이 예상된다. 이번 종합학술대회는 △수학ㆍ물리학ㆍ천문학ㆍ지질학ㆍ△화학ㆍ화학공학ㆍ식품공학△금속ㆍ재료공학△기계ㆍ선박ㆍ항공공학△전자ㆍ전기공학△에너지ㆍ환경ㆍ해양ㆍ건축ㆍ토목공학△국민생활과학 등 7개분과로 나누어 총81편의 학술연구논문 발표와 강의를 갖는다. 그리고 전문분야별로 워크숍을 겸한 산업시찰과 일선지역 및 교육기관ㆍ연구기관 등의 시찰도 있을 예정이며 고급두뇌 유지를 위한 국내산업인과 재구과학기술자간의 간담회도 개최하게 된다. 한편 이번 종합학술대회의 세부계획과 대회기간 중 발표될 분과별연제 발표일정 및 연토는 다음과 같다.