기업 신뢰성 제고를 위한 BSC 관점에서의 Six Sigma 추진전략에 관한 연구

김동관,정수일,Kim Dong-Kwan,Jung Soo-Il 대한안전경영과학회 2005 대한안전경영과학회지 Vol.7 No.4

Even though, the recent management innovation techniques: The 'Six-Sigma' and the 'BSC (Balanced Score Card)' are introduced to many different companies and are used very effectively, Based on the company's substantial and unique characteristics, the quality and the strategies on management are showing the reliability limits in applications in the company. Therefore, the Integrated Management System is presenting a model for stable application of the, activity in the Six-Sigma based on the theoretical notions of the BSC.

남부지역에서 주요 콩 품종의 파종기에 따른 생태적특성 및 수량 변이

김동관,최진경,박흥규,신해룡,윤성탁,이경동,임요섭 韓國作物學會 2013 한국작물학회지 Vol.58 No.1

The purpose of this study was to investigate the effects of shifts in sowing time on the ecological responses, growth and yields of major soybean cultivars in a southern region of South Korea. Experiments were carried out in Naju, Jeonnam Province (latitude 35° 04'N, longitude 126° 54'E) for three years from 2008 to 2010. The test cultivars included Saeol-kong and Tawon-kong of the summer type, Taekwangkong and Pungsannamul-kong, and Cheongja3 of the autumn type. Sowing took place on May 15 and 30, June 15 and 30, and July 15 of each year. Of the summer type soybean cultivars, Saeol-kong showed a smaller curtailment in days from sowing to flowering, days from flowering to maturity, and days from sowing to maturity according to sowing time postponement than Tawon-kong. Of the autumn type soybean cultivars, Taekwang-kong exhibited a lower photoperiodic response in reproductive growth period than Pungsannamul-kong and Cheongja3, both of which recorded higher level photoperiodic responses in vegetative growth stages and reproductive growth periods than other test cultivars, with the former exhibiting higher levels than the latter. Most of the test cultivars tended to decrease in stem length, node numbers of the main stem, and stem diameter according to postponed sowing time, but there were no significant differences in stem length and node numbers of the main stem of the Saeol-kong cultivar. Differences in sowing times did not affect the first setting pod node order of Saeol-kong and Tawon-kong summer type cultivars of internode lengths of all of the test cultivars. All of the test cultivars tended to show decreases in pod number per plant due to postponement of sowing time except for the Saeol-kong cultivar. The variation was more prominent in small grain cultivars such as Tawon-kong and Pungsannamul-kong with the latter autumn type cultivar showing especially large variation. Yields were the greatest for the Tawon-kong, Taekwang-kong, and Pungsannamul-kong cultivars sown on May 30 and Cheongja3 sown on May 30 and June 15. There were no significant differences in the yields of Saeol-kong for different sowing times from May 30 to July 15, with the yields lowest for the batch sown on May 15.

음향 센서 배열 형상 추정을 위한 가중 다항 근사화 기법

김동관,김용국,최창호 한국음향학회 2020 韓國音響學會誌 Vol.39 No.4

In modern passive sonar systems, a towed array sensor is used to minimize the effects of own ship noise and to get a higher SNR. The thin and long towed array sensor can be guided in a non-linear form according to the maneuvering of tow-ship. If this change of the array shape is not considered, the performance of beamformer may deteriorate. In order to properly beamform the elements in the array, an accurate estimate of the array shape is required. Various techniques exist for estimating the shape of the linear array. In the case of a method using a heading sensor, the estimation performance may be degraded due to the effect of heading sensor noise. As means of removing this potential error, weighted polynomial fitting technique for estimating array shape is developed here. In order to evaluate the performance of proposed method, we conducted computer simulation. From the experiments, it was confirmed that the proposed method is more robust to noise than the conventional method. 현대의 수동소나 시스템에서는 자함 소음의 영향을 최소화하고 더 높은 신호대잡음비를 얻기 위한 목적으로예인형 선배열 센서를 운용한다. 얇고 긴 예인형 선배열 센서는 예인선의 기동에 따라 비선형 형태로 유도될 수 있다. 이러한 배열 형상의 변화가 고려되지 않는다면 빔형성기의 성능이 저하될 수 있다. 따라서 예인형 선배열 센서를 이용한 빔형성 시 센서 배열에 대한 정확한 형상의 추정이 필요하다. 선배열 형상 추정에는 다양한 기법이 존재한다. 그 중방위센서를 이용한 기법의 경우, 방위센서 잡음의 영향으로 추정성능이 감소할 수 있다. 이러한 잠재적 오류를 제거하기 위해 가중 다항 근사화 기반 배열 형상 추정 기법을 제안하였다. 제안 기법의 성능 검증을 위하여 컴퓨터 시뮬레이션을 수행하였다. 그 결과 제안 기법의 성능이 기존 기법에 비해 잡음에 강인함을 확인하였다.

IT 융합기술의 기술속성에 관한 연구

김동관,백동현,진희채 한국경영정보학회 2010 한국경영정보학회 학술대회논문집 Vol.2010 No.1

IT 융합산업은 높은 부가가치 창출이 기대되나 서비스 도입과 기술 개발 시 개발성공의 위험성이 존재 한다. IT 융합서비스와 활용기술들이 각각 제시되고는 있으나 특정 서비스의 성공적인 구현을 위해서 어떤 기술이 필요한지 명확히 파악하는 것이 어려운 실정이다. 그리고 IT 융합서비스는 서비스의 구현단 계 이전에 기술이 포함하고 있는 속성과 서비스가 요구하는 속성을 고려하여 적절한 기술과 서비스의 발전방향을 모색해야 하는 분야임에도 이에 대한 고려 없이 서비스의 공급자 입장에서 IT 융합 기술이 나 서비스를 개발하려는 경향이 있다. 이러한 관점에서 본 연구는 IT 융합산업의 서비스를 구현하기 위한 활용기술의 사례를 도출하고 이를 구분된 기술속성분류체계를 이용하여 설문조사를 실시하였다. 그리고 조사된 결과를 바탕으로 IT 융합 기술들의 기술속성에 대한 수준과 특징을 알아보고 그들의 상관관계와 상보성을 분석하였다. 본 연구의 결과는 최적의 IT 융합서비스 도입과 운영을 위한 기술선택과 평가지표로 활용 될 것으로 기대되며 향후 IT 융합서비스와 활용기술을 사전에 인지하고 예측하여 투자 효율성을 극대화하거나 서비스 사업자들의 적극적인 서비스 집중화 및 기술 개발 유도를 위해 이용할 수 있을 것이다.

‘해파랑길’체험기

김동관 한국해사문제연구소 2020 (月刊)海洋韓國 Vol.2020 No.6

노랑종피 결각엽 녹두 품종 ‘삼황’

김동관,최진실,김선곤,이경동,서민정,강범규 한국육종학회 2020 한국육종학회지 Vol.52 No.2

A new mung bean cultivar, Vigna radiata (L.) R. Wilczek ‘Samhwang’, was derived from a cross between ‘Samgang’ and‘KM9901-3B-15-2-4’ obtained in 2006 and developed at the Jeollanamdo Agricultural Research and Extension Services (JARES) in 2014. ‘Samhwang’ has an erect growth habit, lobed leaflets, green hypocotyls, light yellow corolla, and a dull yellow seed surface. Its stem lengthwas 64 cm, 5 cm shorter than that of the control cultivar ‘Owool’. The 1000-seed weight was 53 g, i.e., 4 g heavier than that of ‘Owool’. ‘Samhwang’ exhibited similar field resistance to mung bean mottle virus, cercospora leaf spot, powdery mildew, and lodging when comparedwith that of the control cultivar. The sprout yield ratio and hard seed rate were the same as those of ‘Owool’. The average seed yield of‘Samhwang’ was 1.76 ton/ha, which was 14% greater than that of ‘Owool’ (Registration No. 5877).

‘해파랑길’ 체험기

김동관 한국해사문제연구소 2020 (月刊)海洋韓國 Vol.2020 No.5

‘해파랑길’ 체험기

김동관 한국해사문제연구소 2020 (月刊)海洋韓國 Vol.2020 No.4

단경 다수성 녹두 품종 ‘문평’

김동관,최진경,권오도,이경동,서민정,김현태 한국육종학회 2018 한국육종학회지 Vol.50 No.4

A mungbean cultivar “Munpyeong” (Vigna radiata (L.) Wilczek) was derived as a cross between “Keumseong” and “IT163157” at the Jeollanamdo Agricultural Research and Extension Services (JARES) in 2013. “Munpyeong” has an erect growth habit, heart leaflet, green hypocotyls, black and straight pods when matured, and a dull green seed surface. The stem length of “Munpyeong” was 60 cm, which was 6 cm shorter than that of the control cultivar “Owool.” The pod number per plant was 25, which was 3 more than that of the control cultivar. The 1000 seed weight of “Munpyeong” was 45 g, which was 4 g lighter than that of the control cultivar “Owool.” Its field resistance to mungbean mottle virus, cercospora leaf spot, and powdery mildew are similar to the control cultivar, whereas its field resistance to lodging was slightly stronger. The hard seed rate of “Munpyeong” was 3.2%, which was similar to that of the control cultivar. The sprout yield ratio was 7.54 times, which was 9% more than that of the control cultivar. The average yield of “Munpyeong” was 1.93 ton/㏊, which was 21% more than that of the control cultivar “Owool” (Cultivar registration number: 5878).

‘해파랑길’ 체험기

김동관 한국해사문제연구소 2020 (月刊)海洋韓國 Vol.2020 No.3