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병재배 폐톱밥을 이용한 양송이 복토재료 개발에 관한 연구
김홍규,이희덕,김용균,한규홍,문창식,김홍기 충남대학교 생물공학연구소 1999 생물공학연구지 Vol.7 No.-
애느타리 병재배후 탈병한 톱밥을 3월 중순 퇴적하여 부숙시킨 결과 퇴적기간에 따른 폐톱밥의 부숙정도는 퇴적 30일이후에 가장 컸으며 부숙 소요일수는 최소 48일이었다. 퇴적 기간에 따른 폐톱밥의 pH 및 총 질소 함량은 부숙이 진전됨에 따라 증가하는 경향이었고 총 탄소 및 C/N율은 시간이 경과함에 따라 감소하는 경향이었다. 식양토에 부숙이 완료된 톱밥을 부피 비율로 10, 30, 50%씩 첨가하여 복토 재료로 사용한 결과 30% 첨가시 식양토 단용 처리보다 A. bisporus 균사 생장이 촉진되고 초발이 소요일수가 5일 빠르며, 수량에 있어서도 28% 증수되었다. After bottle culture of Pleurotus ostreatus, sawdust was taken out from the bottle and accumulated in the middle of March, and then composted. As the result, Y value was decreased rapidly 30 days after composting, and it was decreased slowly after 30 days. It is considered that 118 days is required for composting, however, it is possible to use for casing material after at least 48 days composting. The pH and total nitrogen content of sawdust based on composting period had tendency to increase as composting was processed. Total carbon and C/N rate had tendency to decrease as time went on. Based on the rate of 10, 30 and 50%, each sawdust was added to clay loam used as casing material for culturing A. bisporrus. Among various treatments, the mycelial growth of A. bisporus was more favorable in the treatment of 30% sawdust than in the single treatment of clay loam. Based on the date necessary for primodium formation of A. bisporus, the primodium formation in the treatment of 30% sawdust was reduced to about 5 days as compared with that of any other treatments When 30% sawdust was added to clay loam used as casing material for culturing A. bisporus, the yield of its fruiting body was increased to 28%.
점유후 평가(Post-Occupancy Evaluation:POE)를 통한 대학 공공시설의 건축계획연구 : 성균관대학교 자연과학캠퍼스의 학생회관과 도서관의 조사 POE
서기영,문홍길,권종남,김병기 成均館大學校 科學技術硏究所 1991 論文集 Vol.42 No.1
The purpose of this thesis is to study the theory of Post-Occupancy Evaluation(POE) and its application to existing buildings. POE is the process of evaluationg building in a systematic and rigorous manner after they have been built and occupied for some time. POE's focus on building occupants and their needs, and thus provide insights into the consequences of past design decisions and the resulting building performance. In this study, with recognizing the importance and usefulness of POE, two buildings were evaluated according to the process of POE that are the liberary and the student center at Natural Science Campus, Sung Kwun Kwan University. The resultant lessons learned from this POE will provide a line of achieving better building utilization for two buildings and be u sed to set up criteria useful to design similar buildings in the future.
Young-Chul Kim,Hyun-Hee Chae,Sang-Heock Oh,Seung-Ho Choi2,Moon-Pyo Hong3,Gi-Heum Nam,Jae-Yoon Choi,Hyun-Sook Choi,Kyu-Song Lee 한국환경생태학회 2015 한국환경생태학회지 Vol.29 No.2
Yongneup wetland protected area, the only high moor in Korea, is a core area to conserve biodiversity. Even though the Yongneup wetland protected area is relatively small, various plant species are distributed in the Yongneup wetland protected area because it includes various habitats showing different environmental gradients. Vascular plants distributed in the Yongneup wetland protected area were identified as a total of 376 taxa that is composed of 73 families, 217 genera, 322 species, 3 subspecies, 44 varieties and 7 forms. For endangered plants designated by the Ministry of Environment, 5 species including Trientalis europaea var. arctica, Lilium dauricum, Halenia corniculata, Lychnis wilfordii and Menyanthes trifoliata were found and 34 taxa were confirmed to be distributed only in the mountainous wetland habitats. Regarding naturalized plants, a total of 11 taxa were distributed, but most of them were distributed in the areas where artificial interference has occurred. And in areas inside the wetlands that are relatively well preserved, 2 species of Bidens frondosa and Erigeron annuus were observed. In this study, the occurrence and distribution of Pseudostellaria baekdusanensis M. Kim, which was recently found in Mt. Baekdu and reported as a new species, were identified in the Yongneup wetland protected area. A wetland is a very vulnerable area to drastic environmental changes and damages to its ecosystem could cause the extinction of rare plant species which are distributed only in the wetlands. Therefore, it is mandatory that current status of the Yongneup wetland protected area is evaluated and actions to prevent rapid environmental changes are taken. Fourteen separate investigations were conducted in 2013 and another four in 2014, to evaluate current status of the Yongneup wetland protected area. These investigations have provided us the basic information for future actions of conservation and restoration.
A new species of Zabelia(Linnaeaceae) from Korea
Hong, Moon-Pyo,Kim, Young-Chul,Nam, Gi-Heum,Lee, Byoung Yoon The National Institute of Biological Resources 2012 Journal of species research Vol.1 No.1
A new species, Zabelia densipila M.-P. Hong, Y.-C. Kim & B.Y. Lee (Linnaeaceae) is described from Gangwon-do, Korea and illustrated. The new taxon resembles Z. biflora (Turcz.) Makino, but it can be distinguished by its different flowering seasons, ovaries with densely long-pilose hairs, and sequence differences in nuclear ribosomal DNA and chloroplast DNA coding regions.
Hong, Yun-Gi,Kim, Hyun-Joong,Jeon, Jong-Min,Moon, Yu-Mi,Hong, Ju-Won,Joo, Jeong-Chan,Song, Bong-Keun,Park, Kyung-Mooon,Lee, Sang-Hyun,Yang, Yung-Hun Elsevier 2018 Journal of industrial and engineering chemistry Vol.64 No.-
<P><B>Abstract</B></P> <P>Efficient extraction and purification process is still a major bottleneck for economical production of cadaverine. We examined 10 different organic solvents to determine which one might be a suitable solvent for cadaverine extraction. Methyl ethyl ketone (MEK) was a very selective solvent for cadaverine. High pH was critical factor for cadaverine extraction with high purity. Cadaverine extraction efficiency of more than 70.1% with 99% of purity was successfully achieved by applying optimized extraction condition (pH 13.5, 58°C, 200rpm incubation for 6h). Cadaverine extraction using MEK seems quite feasible and promising for the preparation of polyamide monomers for environmental process.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Hong, Yun-Gi,Moon, Yu-Mi,Hong, Ju-Won,No, So-Young,Choi, Tae-Rim,Jung, Hye-Rim,Yang, Soo-Yeon,Bhatia, Shashi Kant,Ahn, Jung-Oh,Park, Kyung-Moon,Yang, Yung-Hun Elsevier 2018 Enzyme and microbial technology Vol.118 No.-
<P><B>Abstract</B></P> <P>Glutaric acid is one of the promising C5 platform compounds in the biochemical industry. It can be produced chemically, through the ring-opening of butyrolactone followed by hydrolysis. Alternatively, glutaric acid can be produced via lysine degradation pathways by microorganisms. In microorganisms, the overexpression of enzymes involved in this pathway from <I>E. coli</I> and <I>C. glutamicum</I> has resulted in high accumulation of 5-aminovaleric acid. However, the conversion from 5-aminovaleric acid to glutaric acid has resulted in a relatively low conversion yield for unknown reasons. In this study, as a solution to improve the production of glutaric acid, we introduced <I>gabTD</I> genes from <I>B. subtilis</I> to <I>E. coli</I> for a whole cell biocatalytic approach. This approach enabled us to determine the effect of co-factors on reaction and to achieve a high conversion yield from 5-aminovaleric acid at the optimized reaction condition. Optimization of whole cell reaction by different plasmids, pH, temperature, substrate concentration, and cofactor concentration achieved full conversion with 100 mM of 5-aminovaleric acid to glutaric acid. Nicotinamide adenine dinucleotide phosphate (NAD(P)<SUP>+</SUP>) and α-ketoglutaric acid were found to be critical factors in the enhancement of conversion in selected conditions. Whole cell reaction with a higher concentration of substrates gave 141 mM of glutaric acid from 300 mM 5-aminovaleric acid, 150 mM α-ketoglutaric acid, and 60 mM NAD<SUP>+</SUP> at 30 °C, with a pH of 8.5 within 24 h (47.1% and 94.2% of conversion based on 5-aminovaleric acid and α-ketoglutaric acid, respectively). The whole cell biocatalyst was recycled 5 times with the addition of substrates; this enabled the accumulation of extra glutaric acid.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The first <I>E. coli</I> whole cell bioconversion from 5-aminovalerate to glutaric acid. </LI> <LI> Finding of critical factors for GabTD reaction. </LI> <LI> Achievement of high bioconversion rate over 90% based on α-ketoglutarate concentration. </LI> <LI> Repetitive use of whole cell biocatalyst to accumulate more glutaric acid. </LI> </UL> </P>
문홍기(Hong Gi Moon),이수원(Soowon Lee) 한국정보과학회 1999 한국정보과학회 학술발표논문집 Vol.26 No.2Ⅱ
대용량 데이터베이스의 데이터로부터 지식을 발견하는 방법으로 사용되고 있는 연관 규칙 발견은 기존에는 알려지지 않았던 지식을 찾아 이를 이용할 수 있는 형태로 제공된다. 하지만, 제공되는 형태는 단순한 데이터베이스에 포함되어 있는 정보만을 이용하여 보여주므로, 특정한 부분에만 제한적으로 활용된다. 따라서, 본 연구에서는 데이터로부터 연관 규칙을 발견하여 이를 개념 계층구조를 이용하여 일반적인 규칙으로 확장하는 방법을 제안한다. 또한, 발견된 규칙을 기반으로 전자 상거래 에이전트를 위해 어떻게 활용될 수 있는지를 제안한다.