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미생물 포괄 고정화방식을 이용한 수산물 가공공장 폐수처리
정병철,장수현,김종배,김건배,최선남,이근우,정병곤 7개 국립대학교 환경연구논문집 공동발행 위원회 2005 공업기술연구 Vol.5 No.-
Feasibility of simultaneous removal of organic and nitrogen is evaluated as applying microbial entrapping method to treat fish processing wastewater. Treatability test is conducted immobilizing activated sludge from municipal sewage treatment plant to gel matrix made of cellulose triacetate. Stable operation can be possible when applying organic and nitrogen loading rate increasingly to wastewater treatment system composed of anoxic and oxic tank. Organic loading rate and nitrogen loading rate are applied 0.65-1.72kg COD/㎥/d and 0.119-0.317kg T-N/㎥/d, respectively. In case of wastewater from fish processing plant used in this study, it is evaluated that 0.3kg T- N/㎥/d is upper limit of applicable space loading rate because effluent T-N concentration is exceed 60mg/L, legal effluent dishargeable limit of T-N concentration in Korea, when space loading rate is exceed 0.3kg T-N/㎥/d. It is evaluated that nitrification of system is performed efficiently regardless fo variation of applied loading rate because removal efficiency of NH_(4)^(+)-N is relatively constant when the applied NH_(4)^(+)-N loading rate is increased gradually, while decrease of T-N removal efficiency is apparent when the applied loading rate is increased gradually. Nitrate removal efficiency in this study is varied from 98.62% to 99.51% depending on applied loading rate, while nitrification efficiency of oxic reactor is varied from 94.0% to 96.9%. It is showed that COD removal efficiency is varied from 94.2% to 96.6% and T-N removal efficiency is varied from 73.4% to 83.4% depending on loading rate applied in this study.
김철웅(Cheol Ung Kim),박재성(Jae Sung Park),조인현(In Hyun Cho),홍창선(Chang Sun Hong),김천곤(Chun Gon Kim) 한국복합재료학회 2002 Composites research Vol.15 No.1
본 연구에서는 유한요소해석을 이용하여 필라멘트 와인딩된 복합재 압력탱크의 설계방법을 정립하였다. 하중을 분담하는 금속재 라이너의 유무에 따라서 각각 설계를 수행하였다. 그리고, 반복적인 설계의 효율을 높이기 위하여 상용프로그램 ABAQUS와 연계된 유한요소해석 전처리 전용 그래픽 유저 인터페이스 프로그램을 구성하여 사용하였다. 또한, 금속재 탱크를 복합재 탱크로 대체하기 위한 초기 설계 과정을 정립하고 대체율을 정의하였으며, 주어진 요구조건에 따라 설계를 수행해 봄으로써 적합한 대체율 및 설계 모델을 제안하였다. In this study, the design method of filament wound composite pressure tanks was established by using finite element analyses. Pressure tanks were designed with and without a load sharing metallic liner. A GUI(graphic user interface) program was developed to increase the efficiency of analyses. The replacement ratio was defined in order to replace a metal pressure tank with a composite one. Finally, the best design model that is satisfied with design requirements was suggested.
Kyung-Cheol Ma,Duck-Soo, Choi,Hyo-Jeong Kim,Jin-Hee, Lee,Sang-A Oh,Sun-Gon, Kim 한국응용곤충학회 2018 한국응용곤충학회 학술대회논문집 Vol.2018 No.04
시설재배 딸기에서 작은뿌리파리의 친환경 방제법 개발을 위하여 2년간 수행하였다. 피복재로 배지를 피복하고, 고리형 점착트랩을 설치하면 효과적이었다. 피복재 종류별 작은뿌리파리 발생정도는 무피복에서 트랩 당 67.1마리로 가장 많았고, 흑백필름 등 나머지 피복재에서는 2~5마리로 낮은 밀도를 유지하였다. 피복재 종류별 딸기 생육특성에서 초장, 엽장, 엽폭은 처리간에 비슷한 경향이었으나, 화방수는 무피복에서 9.7개로 가장 적었고, 수량은 적색필름과 흑백필름 피복이 무피복에 비해 14.6~9.2% 증수하였다. 하절기 피복재 종류별 근권 온도는 흑백필름과 적색필름이 주야간 편차가 적고 안정적이었으며, 동절기에도 적색필름은 다른 피복재보다 근권 온도가 높고 안정적이었다. 점착트랩 색상별 작은뿌리파리 유살정도는 큰 차이가 없었고, 트랩 형태별에서는 고리형이 원반형보다 다소 많았고, 설치 노력이 57.1% 절감되었다.
Ocurrence and Environment-friendly Control of Eurytoma maslovskii in Japanese Apricot (Prunus mune)
Kyung-Cheol Ma,Duck-Soo, Choi,Hyo-Jeong Kim,Jin-Hee, Lee,Sang-A Oh,Sun-Gon, Kim 한국응용곤충학회 2018 한국응용곤충학회 학술대회논문집 Vol.2018 No.04
매실에서 복숭아씨살이좀벌에 대한 친환경 방제법 개발을 위해 2년 동안 수행하였다. 낙과된 매실 핵을 수거하여 보관 장소를 달리하였는데, 장마전에 수거해서 노지에 방치한 경우는 10.7%가 월동하여 모두 성충이 되었다. 수거한 매실 핵을 온실에 보관하다 10월에 노지에 방치한 경우에는 23.3%가 월동하였고, 이 중 77.1%가 성충이 되었다. 그러나 수거 당시부터 이듬해 3월까지 온실에 보관한 경우는 월동률이 42.4%로 매우 높았지만 단지 3.1%만이 우화에 성공하였다. 피해 매실 핵에서 발생한 곰팡이균 Fusarium sp., Geotrichum candidum 2종을 동정하였는데, 매실 핵이 빨리 부식된 경우에는 유충이 핵내에서 곰팡이에 감염되거나 물이 스며들어 사망하였다. 곰팡이 종류는 Fusarium sp.이 더 효과적이 었고, 피복작물로 헤어리베치를 재배하면 더욱 부식이 빨라 핵의 무게와 경도가 낮아져 유충의 월동을 제한하였다. 한편 품종별 피해과율은 옥영품종이 88%로 가장 높았고, 천매품종은 피해가 없어 단일품종보다는 여러 품종을 섞어 재배하는 것이 필요하였다.
Ocurrence of major insect pest in cut flower peony root (Paeonia lactiflora )
Kyung-Cheol Ma,Duck-Soo, Choi,Hyo-Jeong Kim,Jin-Hee, Lee,Sang-A Oh,Sun-Gon, Kim 한국응용곤충학회 2018 한국응용곤충학회 학술대회논문집 Vol.2018 No.10
최근 화훼작물로 각광받고 있는 절화용 작약은 전남이 주산지로 재배면적은 7ha이며, 전국의 70%를 차지하고 있다. 주요 재배지역은 강진, 장흥이며, 비가림재배에서 발생하는 주요해충의 발생양상을 2년간 조사하였다. 잎말이나방류는 5월 하순, 7월 하순, 9월 상순에 발생하였고, 시설재배에서 심각한 피해를 주고 있다. 잎말이나방에 대한 방제약제 5종을 선발하였는데, 사이안트라닐리프롤 유제 1,000배, 에마멕틴벤조에이트 유제 2,000배, 비펜트린 액상수화제, 에토펜프록스 유제 1,000배, 클로란트라 릴리프롤 입상수화제 1,000배 처리에서 90% 이상의 방제효과를 보였다. 목화진딧물은 3월 하순부터 발생하기 시작하였고, 화뢰가 형성되기 시작하는 4월 중하순이 방제적기였다. 대만총채벌레는 3월 하순부터 발생하기 시작하였으며, 5월 하순과 7월 상순이 발생최성기였다. 뿌리혹선충은 토경재배에서 지속적으로 발생하였지만 큰 피해는 없었다.
Kim, Sun-Tae,Kim, Sang-Gon,Hwang, Du-Hyeon,Kang, Sun-Young,Koo, Sung-Cheol,Cho, Moo-Je,Kang, Young-Kyu Plant molecular biology and biotechnology research 2004 Plant molecular biology and biotechnology research Vol.2004 No.-
Phytohormones are essential signal compounds in the regulation of stress-related and defense-related genes. However, there is no clear evidence for any effect of these signal molecules and biotic elicitors on the regulation of the SALT gene in suspension-cultured rice cells. We characterized the expression of a SALT gene following treatment with fungal elicitor, phytohormones, cycloheximide, and inhibitors of protein kinase/phosphatases. SALT expression was up-regulated following treatment with a fungal elicitor, jasmonic acid (JA), abscisic acid (ABA), and NaCl. However, salicylic acid (SA) alone or in combination with one of the other elicitors not only strongly inhibited SALT gene expression but also exhibited an antagonistic effect in suspension cells and leaves. Cycloheximide inhibited SALT accumulation in suspension cells and in leaves, but the inhibitors of protein kinase/phosphatase did not. Immunolocalization revealed that SALT protein was present in xylem parenchyma cells of vascular bundles in the major and minor leaf veins.
Lee, Cheol Whan,Ahn, Jung-Min,Park, Duk-Woo,Kang, Soo-Jin,Lee, Seung-Whan,Kim, Young-Hak,Park, Seong-Wook,Han, Seungbong,Lee, Sang-Gon,Seong, In-Whan,Rha, Seung-Woon,Jeong, Myung-Ho,Lim, Do-Sun,Yoon, American Heart Association, Inc. 2014 CIRCULATION - Vol.129 No.3
<P><B>Background—</B></P><P>The risks and benefits of long-term dual antiplatelet therapy remain unclear.</P><P><B>Methods and Results—</B></P><P>This prospective, multicenter, open-label, randomized comparison trial was conducted in 24 clinical centers in Korea. In total, 5045 patients who received drug-eluting stents and were free of major adverse cardiovascular events and major bleeding for at least 12 months after stent placement were enrolled between July 2007 and July 2011. Patients were randomized to receive aspirin alone (n=2514) or clopidogrel plus aspirin (n=2531). The primary end point was a composite of death resulting from cardiac causes, myocardial infarction, or stroke 24 months after randomization. At 24 months, the primary end point occurred in 57 aspirin-alone group patients (2.4%) and 61 dual-therapy group patients (2.6%; hazard ratio, 0.94; 95% confidence interval, 0.66–1.35; <I>P</I>=0.75). The 2 groups did not differ significantly in terms of the individual risks of death resulting from any cause, myocardial infarction, stent thrombosis, or stroke. Major bleeding occurred in 24 (1.1%) and 34 (1.4%) of the aspirin-alone group and dual-therapy group patients, respectively (hazard ratio, 0.71; 95% confidence interval, 0.42–1.20; <I>P</I>=0.20).</P><P><B>Conclusions—</B></P><P>Among patients who were on 12-month dual antiplatelet therapy without complications, an additional 24 months of dual antiplatelet therapy versus aspirin alone did not reduce the risk of the composite end point of death from cardiac causes, myocardial infarction, or stroke.</P><P><B>Clinical Trial Registration—</B></P><P>URL: http://www.clinicaltrials.gov. Unique identifier: NCT01186146.</P>
Kim, Sang Gon,Lee, Jin-Seok,Shin, Seong-Hyu,Koo, Sung Cheol,Kim, Jung Tae,Bae, Hwan Hee,Son, Beom-Young,Kim, Yul-Ho,Kim, Sun Lim,Baek, Seong-Bum,Kwon, Young-Up The Korean Society for Applied Biological Chemistr 2015 Applied Biological Chemistry (Appl Biol Chem) Vol.58 No.3
Maize (Zea mays L.) is the most important crop such as food for humans and feed for animals. Although new varieties of maize have been extensively developed in Korea, little is known about differences in the proteomes of mature kernels among maize varieties. Three Korean waxy corn cultivars (Ilmichal, Eolrukchal 1, and Heukjinjuchal) have previously been developed. The total protein content is higher in Ilmichal than in Eolrukchal 1 or Heukjinjuchal, while the starch and fatty acid contents are similar among these three Korean waxy corns. To uncover the differences in proteomic profiles among these three Korean waxy corns, we performed proteomic analysis and compared their protein compositions. We detected 37 differentially expressed protein spots and identified the proteins using MALDI-TOF mass spectrometry. Of these proteins, 37.8 % were identified as storage proteins, 18.9 % as stress-related proteins, and 18.9 % as metabolism-related proteins. Storage proteins (globulin-2) and stress-related proteins (heat shock proteins and general stress proteins) were highly expressed in Ilmichal or Heukjinjuchal. Semi-quantitative reverse transcription-polymerase chain reaction (RT-PCR) analysis of corresponding genes of five randomly selected proteins, including glyoxalase family protein (accession number, B6SGF3), globulin-2 (Q7M1Z8), heat shock protein 1 and 3 (B6TGQ2 and B6TDB5), and vicilin-like embryo storage protein (Q03865), showed that the expression levels of the tested genes were well-correlated with protein abundance, suggesting that these proteins are also differentially regulated at the transcriptional level. Taken together, these results provide a better understanding of proteomic differences among Korean waxy corn cultivars and may support further molecular breeding efforts.