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RISS 활용도 분석
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일본/중국/유럽자료
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해외논문구매대행(E-DDS)
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RISS 인기검색어
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- 저자 : 박성훈 (검색결과 1,525 건)
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박성훈 한국공업화학회 2017 한국공업화학회 연구논문 초록집 Vol.2017 No.1
For every 9kg of biodiesel production, about 1kg of crude glycerol is generated as a byproduct. Glycerol is a good carbon source for the production of 3-hydroxypropionic acid (3-HP). Several engineered microbes such as Escherichia coli, Klebsiella pneumoniae and Pseudomonas denitrificans have been developed for the production of 3-HP by introducing an aldehyde dehydrogenase and a glycerol dehydratase. However, both the enzymes were seriously inactivated during the reaction. To minimize the inactivation of the enzymes, balanced expression of the genes was attempted by promoter engineering and unique dynamic promoters which are induced by 3-HP have been employed. The dynamic promoters could express the genes of the two enzymes continuously and maintained their activity until the end of fermentation. This talk summarizes our long efforts for the 3-HP production and discusses the potential and limitations of our work. Also, glycerol metabolisms affecting 3-HP production are discussed.
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Quorum Sensing Inhibitors from the Red Alga, Ahnfeltiopsis flabelliformis
박성훈,김연희,서영완,김정선 한국생물공학회 2007 Biotechnology and Bioprocess Engineering Vol.12 No.3
Three new acylhomoserine lactone (AHL) inhibitors have been isolated from the Korean red alga, Ahnfeltiopsis flabelliformis, via bioactivity-guided fractionation using the recombinant Agrobacterium tumefaciens liquid culture bioassay. Unlike the majority of AHL inhibitors reported to date, these compounds were α-D-galactopyranosyl-(1→2)-glycerol (floridoside) (1), bet-onicine (2), and isethionic acid (3), all of which are structurally unrelated to AHLs.
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The Occurrence of a Branchial Cleft Cyst in the Anterior Mediastinum: A Case Report
박성훈,김성훈,신현웅,조현철,손미영,공준혁 대한영상의학회 2008 대한영상의학회지 Vol.59 No.2
Branchial cleft cysts and branchial anomalies develop from the branchial cleft apparatus that persists after fetal development. The most common anatomical site for the occurrence of branchial cleft cysts is in the cervical area, generally anterior to the sternomastoid muscle in the upper or middle portion of the neck. A mediastinal branchial cleft cyst is extremely rare and few cases have been reported. We report the case of branchial cleft cyst found in the anterior mediastinum with literature review.
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1LC-8 : The fabrication of large size BiSbTe thermoelectric materials via spark plasma sintering
박성훈 한국공업화학회 2018 한국공업화학회 연구논문 초록집 Vol.2018 No.1
We prepared (Bi2Te3)x (Sb2Te3)2-x p-type thermoelectric materials via SPS(spark plasma sintering) technique and the thermoelectric properties have been investigated by using Harman method at RT. With the increase of Sb2Te3 content, the electrical resistivity and Seebeck coefficient decreased while the thermal conductivity increased. The maximum z value of the sintered thermoelectric material was 3.2 at RT. Also, p-type Bi2Te3-based ingots with 50mm in diameter were prepared by SPS technique. To verify the reliability of the ingots, thermoelectric and mechanical properties such as Seebeck distribution and density were studied. Finally, thermoelectric module with the dimension of 40mm X 40mm was fabricated by using p-type materials by SPS and n-type materials by zone melting technique. The Z value of the module was 2.7 at RT.
KCI
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