작품노트-장교리 모자 보건소

황영현,Hwang, Yeong-Hyeon 대한건축사협회 2006 建築士 Vol.2006 No.8

Production and Economic Factor Analysis for the Low Input Sustainable Agriculture(LISA) of Red Pepper

황영현,최정,김충실,김병도,Hwang, Young-Hyun,Choi, Jung,Kim, Chung-Sil,Kim, Byung-Do 한국유기농업학회 1998 韓國有機農業學會誌 Vol.7 No.1

고추 연작지에서의 녹비작물의 효과를 구명하기 위하여 자운영을 포함한 5개 녹비작물을 동계간에 재배한 결과 자운영은 월동한 개체가 정연없이 동계간에 모두 동사하였으며, 나머지 4종류 녹비작물의 건물중은 호밀> 밀> 보리> 이탈리안 라이그라스의 순이었는데, 호밀의 경우 ha당 건물중이 4.1통이었다. 녹비작물 재배는 고추의 연작장해, 특히 고추 연작지에서 가장 문제가 되는 고추 역병(Phytophthora capsis)의 발생을 경감시키는 효과가 있는 것으로 나타났으며, 果長과 果直徑이 증가하여 고품질의 고추생산이 가능하였다. 1년차로 퇴비만을 사용한 경우 고추의 생육과 수량은 화학비료를 사용한 구에 비하여 떨어지는 결과를 보였으나 퇴비 사용량이 증가할수록 그 차이가 줄어들었으며, 토양중의 유기물 함량이 높아져 퇴비의 지속적 肥效가 인정되었다. 고추영농의 경우 저투입지속농업(LISA)과 일반관행농업을 비교해 보면, 수익-비용 분석결과를 중심으로 한 주요 경제적요인과 기술적요인 양측 모두 뚜렷한 차이가 있었다. 따라서 LISA에 의한 고추영농을 발전시키려면 단순히 기술진보 뿐만 아니라 다양한 현실적 목표를 조화시킬 수 있는 LISA 고추영농에 필요한 다목표 의사결정모형을 개발할 필요가 있는 것으로 나타났다. The total amount of dry matter for the green manure crops was great wheat> rye> barley> Italian ryegrass in that order. The green manure crope were verified to have the reducing effect of injury of successive croppingin peper, mainly reducing the occurance of the most important pepper disease, Phytophthora capsisi, and enhancing the pepper quality in the fruit length and diameter. The direct seeding using current commercial pepper variety was proved as not economical one. In the first year of compost application, the growth and yield of red pepper were rather somewhat decreasing compared with those of check plot applied with organic fertilizers. compst application increased the content of organic matter in soil, which suggested compost could be applied for the sustainable purposes. In preference analysis about taking the new technique, the smaller farmer's cultivation area the more they wanted to accept the LISA farming, compared with the conventional one, could be possible to save 12% in the inorganic fertilizer expenses but wasted 412% ant 163% in both organic fertilizer and operator labor expenses, respectively. At the same time, the LISA decreased 15% in production cost but increased 225% and 139% in organic fertilizer quantity and operator labor hours. Since there was a great deal of difference in technological and economic factors from two farming methods, LISA multi-goal decision modeling is further required.

고추의 LISA 모형개발(模型開發)을 위한 기술(技術)·경제적(經濟的) 요인분석(要因分析)

황영현 ( Hwang Young-hyun ),최정 ( Choi Jung ),김충실 ( Kim Chung-sii ),김병도 ( Kim Byung-do ) 한국유기농업학회 1998 韓國有機農業學會誌 Vol.7 No.1

고추 연작지에서의 녹비작물의 효과를 구명하기 위하여 자운영을 포함한 5개 녹비작물을 동계간에 재배한 결과 자운영은 월동한 개체가 전연없이 동계간에 모두 동사하였으며 나머지 4종류 녹비작물의 건물중은 호밀〉 밀〉 보리〉 이탈리안 라이그라스의 순이었는데, 호밀의 경우 ha 당 건물중이 4.1톤이었다. 녹비작물 재배는 고추의 연작장해, 특히 고추 연작지에서 가장 문제가 되는 고추역병(Phytophthora capsisi)의 발생을 경감시키는 효과가 있는 것으로 나타났으며, 果長과 果直徑이 증가하여 고품질의 고추생산이 가능하였다. 1년차로 퇴비만을 시용한 경우 고추의 생육과 수량은 화학비료를 시용한 구에 비하여 떨어지는 결과를 보였으나 퇴비시용량이 증가할수록 그 차이가 줄어들었으며 토양중의 유기물 함량이 높아져 퇴비의 지속적 肥效가 인정되었다. 고추영농의 경우 저투입지속농업(LISA)과 일반관행농업을 비교해 보면, 수익-비용 분석결과를 중심으로 한 주요 경제적요인과 기술적요인 양측 모두 뚜렷한 차이가 있었다. 따라서 LISA에 의한 고추영농을 발전시키려면 단순히 기술진보 뿐만 아니라 다양한 현실적 목표를 조화시킬 수 있는 LISA 고추영농에 필요한 다목표 의사결정모형을 개발할 필요가 있는 것으로 나타났다. The total amount of dry matter for the green manure crops was great wheat> rye> barley> Italian ryegrass in that order. The green manure crops were verified to have the reducing effect of injury of successive cropping in pepper, mainly reducing the occurance of the most important pepper disease, Phytophthora capsisi, and enhancing the pepper quality in the fruit length and diameter. The direct Seeding using current commercial pepper variety was proved as not economical one. In the first year of compost application, the growth and yield of red pepper were rather somewhat decreasing compared with those of check plot applied with organic fertilizers. Compost application increased the content of organic matter in soil, which suggested compost could be applied for the sustainable purposes. In preference analysis about taking the new technique, the smaller farmer's cultivation area the more they wanted to accept the LISA. In the economical and technological fator analysis, the LISA farming, compared with the conventional one, could be possible to save 12% in the inorganic fertilizer expenses but wasted 412% ant 163% in both organic fertilizer and operator labor expenses, respectively. At the same time, the LISA decreased 16% in production cost but increased 225% and 139% in organic fertilizer quantity and operator labor hours. Since there was a great deal of difference in technological and economic factors from two farming methods, LISA multi-goal decision modeling is further required.

온라인 공동체 구성원이 지각하는 기능이 공동체와 오프라인 모임에 대한 태도에 미치는 영향

황영현(Hwang Yeong-Hyeon),조용현(Cho Yong-Hyun) 한국관광레저학회 2005 관광레저연구 Vol.17 No.4

우리나라 콩 관련 산업의 현황과 발전방향

황영현 ( Young Hyun Hwang ),정연신 ( Yeon Shin Jeong ),이정동 ( Jeong Dong Lee ) 한국콩연구회 2004 韓國콩硏究會誌 Vol.21 No.1

관광카드의 기능 및 지불방법 선호에 관한 탐색적 연구

황영현(Hwang Yeong-Hyeon),이광호(Lee Kwang-Ho) 한국관광레저학회 2007 관광레저연구 Vol.19 No.4

여성 독거노인의 외로움 극복과정에 대한 현상학적 연구: 코로나 상황에서 초기 독거노인을 중심으로

황영현(Yeonghyeon Hwang),엄재희(Jaehee Eom),이민경(Minkyoung Lee),양지수(Jisoo Yang) 한국노인복지학회 2023 노인복지연구 Vol.78 No.1

動物 免疫 抑制劑를 利用한 glycine屬의 種間交雜

Young Hyun Hwang(黃永鉉),Chong Suk Huh(許彰錫) 한국육종학회 1993 한국육종학회지 Vol.25 No.4

This study was carried out to investigate the possibility of the use of immunosuppressive agents(ISA) which are commonly used for the elimination of immune system during the organ or tissue transfer in the fields of human medical science for the elimination of post-fertilization barrier which is one of the main obstacles in the inter-subgeneric or inter-specific hybridization of soybeans. Some of the results obtained are summerized as follows ; Even with dried seeds in pod shell, the successful seed germination into complete plants by the conventional filter paper method was possible for the seeds of 25 days after flowering for regular seeds. But, in case of the hybrid seeds of G. max×G. tomentella, the seed development was completely ceased within 20 days after crossing. Considering the development of G. max seeds, it was inferred that the development of hybrid seeds was ceased much prior to they have normal germinability. Some varietal difference in the crossability of G. max with G. tomentella was recognized but high degree of crossability of G. max with four-types of chromosome number in G. tomentella, of which diploid chromosome number are 38, 40, 78 and 80, was possible. All ISA tested in this experiments showed a fairly good effects to prolong the days to hybrid-pod abscission up to 20 days after hybridization. Cytrabine, procarbazine(N-methylhydrazine) and mitomycine C were approved to maintain the pod-shell development up to 60 days after the cross. But the ovule development was seemed to be continued only up to 40 days after cross even with the ISA treatment. No significant dosage effects on the hybrid pod abscission was observed but the optimum dosage measured at 65 days after the cross was 4,000 ppm, 20 ppm and 100 ppm for cytarabine, mitomycine C, and procarbazine, respectively.

콩壞疽 바이러스(SMV-N) 罹病率에 있어서 品種間 差異와 播種期의 影響

Young Hyun Hwang(黃永鉉) 한국육종학회 1993 한국육종학회지 Vol.25 No.3

Epidemic necrotic soybean mosaic virus(SMV-N) was observed on the early planted soybean fields of Kyungbuk Provinical Rural Development Administration in the southern part of Korea where no record of severe SMV-N was made hitherto. Milyangkong which is successfully being cultivated without any SMV-N infection on farmer’s fields in the normal planting date of June 20 showed 88.7%, 38.9%, 25.8%, and 10.4% of SMV-N infection rates in the early planting dates of April 15, April 30, May 15, and May 30, respectively. A great deal of difference in infection rates of SMV-N among twenty tested soybean vareties as well as among three planting times, April 20, May 20, and June 20, were recognized. At the same time, high negative correlations between the infection rate of soybean mosaic virus(SMV) at flowering and that of SMV-N at maturity were also recognized at all three planting times. All American soybean varieties having indeterminated growth habits and some of Korean varieties such as Jangbaekkong, Namhaekong, Danwonking, and Eunhakong which are somewhat suceptible to SMV showed high resistance to SMV-N. Two Korean varities, Paldalkong and SS77053 were resistant to SMV and SMV-N simultaneously. Applying of the cross protection theorem is advisable in the development of soybean varieties for the upland-paddy field rotation croppings, which can be a means of avoiding the deveatating yield loss by possible epidemic SMV-N.

SiO₂ 완충층 두께에 따른 비정질 InGaZnO Pseudo-MOS Field Effect Transistor의 신뢰성 평가

이세원,황영현,조원주,Lee, Se-Won,Hwang, Yeong-Hyeon,Cho, Won-Ju 한국전기전자재료학회 2012 전기전자재료학회논문지 Vol.25 No.1

In this study, we fabricated an amorphous InGaZnO pseudo-MOS transistor (a-IGZO ${\Psi}$-MOSFET) with a stacked $Si_3N_4/SiO_2$ (NO) gate dielectric and evaluated reliability of the devices with various thicknesses of a $SiO_2$ buffer layer. The roles of a $SiO_2$ buffer layer are improving the interface states and preventing degradation caused by the injection of photo-created holes because of a small valance band offset of amorphous IGZO and $Si_3N_4$. Meanwhile, excellent electrical properties were obtained for a device with 10-nm-thick $SiO_2$ buffer layer of a NO stacked dielectric. The threshold voltage shift of a device, however, was drastically increased because of its thin $SiO_2$ buffer layer which highlighted bias and light-induced hole trapping into the $Si_3N_4$ layer. As a results, the pseudo-MOS transistor with a 20-nm-thick $SiO_2$ buffer layer exhibited improved electrical characteristics and device reliability; field effective mobility(${\mu}_{FE}$) of 12.3 $cm^2/V{\cdot}s$, subthreshold slope (SS) of 148 mV/dec, trap density ($N_t$) of $4.52{\times}1011\;cm^{-2}$, negative bias illumination stress (NBIS) ${\Delta}V_{th}$ of 1.23 V, and negative bias temperature illumination stress (NBTIS) ${\Delta}V_{th}$ of 2.06 V.