• Electronics and Telecommunications Trends
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• v.12 no.4 s.46
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• pp.31-38
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• 1997

OSF/1 AD는 여러 대의 워크스테이션을 연결한 클러스터링 시스템에서부터 인텔 파라곤(Paragon)과 같은 massively parallel(MPP) 시스템에 이르는 다양한 시스템 상에서 단일시스템 이미지를 효과적으로 제공하는 다중컴퓨터용 운영체제이다. 본 고에서는 OSF/1 AD 운영체제의 기본구조와 분산 시스템의 부하 분산 기능 구현의 핵심 요소인 프로세서 이전 기법의 구현 방법에 대하여 살펴보았다.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2006.12a
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• pp.63-67
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• 2006

This paper a new method which applies a genetic algorithm for determining which sectionalizing switch to poerate in order to solve the distribution system loss minimization re-configuration problem. In addition, the proposed method introduces a ultra efficient MMP tracking in a solar power generation system.

• Journal of Food Hygiene and Safety
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• v.1 no.2
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• pp.181-186
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• 1986

Organophosphorus insecticide residues were investigated in six kinds of fruits and five kinds of vegetables.The materials used in this experiment were grape, musk melon, apple, peach, plum, apricot, lettuce, green pepper, cucumber, pumpkin and tomato which were collected from June to september 1986 in Seoul. Residual pesticides investigated were Diazinon, Parathion, MEP (Fenitrothion), Malathion, EPN, MPP (Fenthion), PAP (Phenthoate) and Dimethoate and all samples were analysed by gas chromatographic technique with NPD (Nitrogen Phosphorus Detector). No sample was found to approach proposed national maximum residue limits in Korea.

• Proceedings of the KIPE Conference
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• 2010.11a
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• pp.282-283
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• 2010

본 논문은 10kW급 태양광발전용 전력변환기 개발에 관한 것이다. 개발 중인 10kW급 태양광발전용 전력변환기는 3레벨 토폴로지를 적용하였으며 무변압기형으로 설계되었다. 2개의 MPP(Maximum Power Point) trackers를 가지고 있으며 실외형으로 설계되어 설치 장소에 제약을 받지 않는다.

• Proceedings of the Korean Vacuum Society Conference
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• 1994.02a
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• pp.98-101
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• 1994

white diamond thin film, which should be compposed of almost ppure diamond, could be successfully obtained under high ppressure conditions(above 150 Torr) by means of MppECVD(microwave pplasma enhanced chemical vappor depposition, ASTeX 1.5 kW). Characteristics of the films with varing expperimental pparameters have been examined. From the expperimental results, we will discuss the surface morpphology and the growth mechanism of the films.

• Journal of IKEEE
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• v.16 no.3
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• pp.224-234
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• 2012

This paper describes an energy harvesting circuit using solar and vibration energy with MPPT(Maximum Power Point Tracking) control for micro sensor nodes. The designed circuit employs MPPT control to harvest maximum power available from a PZT vibration element and an integrated solar cell. The harvested energies are simultaneously combined and stored in a storage capacitor, and then managed and transferred into sensor node by PMU(Power Management Unit). MPPT controls are implemented using the linear relationship between the open-circuit voltage of an energy transducer and its MPP(Maximum Power Point) voltage. The proposed circuit is designed in a CMOS 0.18um technology and its functionality has been verified through extensive simulations. The designed energy harvesting circuit and integrated solar cell occupy $2.85mm^2$ and $8mm^2$ respectively.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.12
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• pp.4865-4869
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• 2014

Objective: This study evaluated the expression level of high mobility group box-B1 (HMGB-1) and matrix metalloproteinase-9 (MMP-9) in non-small cell lung cancer (NSCLC) inmorder to reveal any relation with development and prognosis. Methods: NSCLC and normal tissues were selected from 30 patients at age of 30-73, and used for RT-PCR and Western blot analyses of HMGB-1. A total of 100 paraffin embedded NSCLC tissues were also isolated from patients through surgical resection, and used for detection of HMGB-1 by immunohistochemistry. In addition, 50 samples were also applied for MMP-9 detection, and 30 normal tissues were considered as controls. Correlation analysis of HMGB-1 and MMP-9 was carried out by Pearsons correlation coefficient. Results: The average expression level of HMGB-1 in NSCLC patients was significantly higher than in normal lung tissues. In addition, patients in III-IV period exhibit significantly higher positive rate of HMGB-1 when compared with I-II period cases. Furthermore, a positive correlation with HMGB-1 was found in the expression of MPP-9. Conclusion: HMGB-1 was highly expressed in NSCLC, which may become a prognostic and predictive marker for NSCLC. Besides, MPP-9 was positively correlated with HMGB-1.

• The Journal of the Korea Contents Association
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• v.10 no.10
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• pp.140-151
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• 2010

In the era of the rapid change of broadcasting industry, Korean terrestrial TV, dominant player, face also to severe competition with the new media platforms. To survive in the traditional market and to be winner in the new market, they tend to diverse their activities. Particularly, they expand the activities to the content business. Therefore, this study focus on the diversification of 3 major free TV, KBS, MBC, SBS. As a result, Korean terrestrial TV still dominate content industry with their enormous library and their distribution networks : they conflict with the independent companies and do the contents business exclusively. There are no rooms for the independent distributor. Among 3 players, the strategies of SBS have been oriented to the business and in the field of MPP(Multiple program Provider), the performance of MBC has been remarkable.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.7 no.4
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• pp.743-748
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• 2006

We investigated the flame retardancy and the mechanical properties of Nylon6 by using melamine-based halogen-free flame retardants(melamine cyanurate:MC-100 and melamine phosphate:MP-100). We chose the UL-94 method for flame retardancy and measured the tensile strength, flexural strength, flexural modulus by using UTM and impact strength by using Izod impact tester. We also tested the effect of nano-clay on flammability and mechanical properties. We obtained the V0 grade when the concentration of flame retardant was over 5 wt%. The tensile strength and flexural strength decreased and flexural modulus increased with the concentration of both flame retardant systems. The results showed that MC-100 system was better than MPP-100 system. Because of poor dispersion, we did not obtain the synergistic effect of nano-clay.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2018.10a
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• pp.112-112
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• 2018

산마늘은 마늘과 같이 독특한 향이 있어 입맛을 돋우며 웰빙식품으로 3월 중순에서 5월초에 채취하여 생채로 쌍을 먹거나 김치, 절임으로 생산되어 판매된다. 산마늘의 부가가치 향상을 위하여 살균소독 세척과 소포장용 필름포장방법을 구명하고자 본 실험을 수행하였다. 산마늘을 살균소독 세척수(수돗물, 0.2% 구연산 침지 후 50% 에탄올 분무처리)로 2분 세척하고 원심탈수 후, 포장필름은 $30{\mu}m$ oriented polypropylene (OPP), $30{\mu}m$ OPP 필름을 기본재료로 산소투과율 $5,000cc/m^2{\cdot}day{\cdot}atm$ (OPP_5)로 조정한 필름, $30{\mu}m$ micro perforated polypropylene (MPP) 필름에 밀봉하고, $30{\mu}m$ OPP필름에 개봉 포장하여 $4^{\circ}C$에서 42일 저장하였다. 산마늘은 구연산 침지 후 에탄올 분무세척 후 세척 전 보다 일반세균수가 1.5 log CFU/g 감소되었으며 수돗물 세척 후는 0.1 log CFU/g 정도 감소하여 수돗물 보다 구연산 침지 후 에탄올 분무에 의해 균수 감소효과가 보다 컸으며 저장기간이 경과한 후에도 그러한 경향은 유지되었다. 저장 35일 후 세척수에 관계없이 OPP 개봉과 MPP 밀봉 포장에서 의해 산마늘의 황화율과 부패율이 높게 나타났으며 OPP 밀봉에서 이취 발생 지수가 OPP_5 밀봉보다 높게 나타났다. 세척 및 포장처리에 의한 종합선도의 제한요인은 황화, 이취 및 부패취 발생 지수로 이를 종합하였을 때 산마늘의 상품성 향상을 위하여 소포장 하는 경우 구연산 침지 후 에탄올 분무 방법으로 세척한 다음 원심탈수하여 OPP_5필름으로 포장하는 것이 품질 향상에 적합하였으며 40일 이상 저장이 가능한 것으로 나타났다.