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하수처리장 적용을 위한Semi-카플란 수차가 장착된 마이크로수력발전 시스템
채규정(Kyu Jung Chae),김동수(Dong Soo Kim),천경호(Kyung Ho Cheon),김원경(Won Kyoung Kim),김정연(Jung Yeon Kim),이철형(Chul Hyung Lee),박완순(Wan Soon Park) 大韓環境工學會 2013 대한환경공학회지 Vol.35 No.5
소수력발전은 하수처리장 에너지 자립을 위한 효과적인 대안이다. 본 연구는 유량변동이 크고 유효낙차가 낮은 중소형하수처리장(기흥레스피아) 적용을 위해 피치조절형 세미카플란(semi-kaplan) 마이크로수력발전의 적용 타당성을 평가하였다. 가변피치 semi-kaplan 수차는 유량조절을 위한 가이드베인은 생략하고 피치조절형 런너를 장착하여 기계적 결함은 줄이면서 유량변동이 큰 처리장에 특화된 기술이다. 마이크로수력발전 시스템은 설계조건(유량 0.35 m3/s, 유효낙차 4.7 m)에서 90.2%의 수차효율 달성이 가능하였고 발전용량은 13.4 kW로 산정되었다. 설비가동률 74%로 가동 시 연간 약 86.8 MWh 에너지 생산을 통해 2.1%의 에너지 자립이 가능하고 이는 연간 49톤의 CO₂ 감축효과와 맞먹는다. 경제성 평가결과 초기 건설공사비가 200,000,000원 이하인 경우에는 내부수익률은 6.1%, 순현가는 15,539,000원, 편익-비용률은 1.08, 투자회수년은 15.5년으로 경제성이 충분한 것으로 나타났다. Small scale hydropower is one of most attractive and cost-effective energy technologies for installation within sewage treatment plants. This study was conducted to evaluate the potential of a semi-kaplan micro-hydropower (MHP) system for application to sewage treatment plants with high flow fluctuations and a low head. The semi-kaplan MHP is equipped with an adjustable runner blade, and is without a guide vane, so as to reduce the incidence of mechanical problems. A MHP rating 13.4 kWp with a semi-kaplan turbine has been considered for Kiheung Respia sewage treatment plant, and this installation is estimated to generate 86.8 MWh of electricity annually, which is enough to supply electricity to over 25 households, and equivalent to an annual reduction of 49 ton CO₂. The semi-kaplan turbine showed a 90.2% energy conversion efficiency at the design flow rate of 0.35 m3/s and net head of 4.7 m, and was adaptable to a wide range of flow fluctuations. Through the MHP operation, approximately 2.1% of total electricity demand of Kiheung Respia sewage treatment plant will be achievable. Based on financial analysis, an exploiting MHP is considered economically acceptable with an internal rate of return of 6.1%, net present value of 15,539,000 Korean Won, benefit- cost ratio of 1.08, and payback year of 15.5, respectively, if initial investment cost is 200,000,000 Korean Won.
Evaluation of four rapid diagnostic tests for the diagnosis of <i>Plasmodium vivax</i> in Korea
Kim, Kyung Hee,Jang, Jin Woo,Woo, Mi Kyung,Oh, Jun Seo,Han, Eun Taek,Lee, Won Ja,An, Seong Soo A.,Lim, Chae Seung Blackwell Publishing Ltd 2011 Tropical medicine & international health Vol.16 No.11
<P><B>Summary</B></P><P><B>Objective </B> To evaluate 4 rapid malaria diagnostic kits (RDTs) in Korea: OptiMAL test, SD BIOLINE Malaria Ag P.f/Pan test, Humasis Malaria P.f/Pan antigen test and CareStart™ Malaria Pf/Pv Combo test.</P><P><B>Methods </B> Hundred malaria patients with <I>Plasmodium vivax</I> (<I>P.?vivax)</I> and 100 healthy volunteers were recruited. The results from earlier four RDTs were compared with the reference standard, the Giemsa‐stained traditional microscopic diagnosis.</P><P><B>Results </B> Compared with the reference standard, the sensitivity and specificity for <I>Plasmodium vivax</I> were 92.7 and 100% for SD BIOLINE Malaria Ag P.f/Pan; and 94.6% and 100% for OptiMAL; 95.5% and 100% for both Humasis Malaria P.f/Pan antigen test and CareStart™ Malaria Pf/Pv Combo test.</P><P><B>Conclusion </B> The performances of all four malaria RDT kits were acceptable, although Humasis Malaria P.f/Pan antigen test and CareStartTM Malaria Pf/Pv Combo test gave superior performances with ROK isolates.</P>
Won, Kyung-Jong,Park, Sung-Won,Lee, Seunghoon,Kong, Il-Keun,Chae, Jung-Il,Kim, Bokyung,Lee, Eun-Jong,Kim, Dong-Ku 한국조명·전기설비학회 2015 한국조명·전기설비학회 학술대회논문집 Vol. No.
<P>The triggering receptor expressed on myeloid cells (TREM) family, which is abundantly expressed in myeloid lineage cells, plays a pivotal role in innate and adaptive immune response. In this study, we aimed to identify a novel receptor expressed on hematopoietic stem cells (HSCs) by using <I>in silico</I> bioinformatics and to characterize the identified receptor. We thus found the TREM-like transcript (TLT)-6, a new member of TREM family. TLT-6 has a single immunoglobulin domain in the extracellular region and a long cytoplasmic region containing 2 immunoreceptor tyrosine-based inhibitory motif-like domains. TLT-6 transcript was expressed in HSCs, monocytes and macrophages. TLT-6 protein was up-regulated on the surface of bone marrow-derived and peritoneal macrophages by lipopolysaccharide stimulation. TLT-6 exerted anti-proliferative effects in macrophages. Our results demonstrate that TLT-6 may regulate the activation and proliferation of macrophages.</P>
Chae, Jun-Ho,Kurokawa, Kenji,So, Young-In,Hwang, Hyun Ok,Kim, Min-Su,Park, Ji-Won,Jo, Yong-Hun,Lee, Yong Seok,Lee, Bok Luel Elsevier 2012 DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY Vol.36 No.3
<P><B>Highlights</B></P><P>► In order to know what kinds of molecules can activate insect’s innate immunity. ► Novel antimicrobial peptide is purified after injection of bacterial components. ► This antimicrobial peptide showed bactericidal activity against Gram-negative bacteria. ► This antimicrobial peptide was induced by Toll- or Imd-pathway activating elicitors.</P> <P><B>Abstract</B></P><P>The biochemical characterization of novel antimicrobial peptides (AMPs) and the determination of ligand molecules that induce AMP production are essential for understanding the host innate immune response in insects. Here, we purified a new 14-kDa AMP, named tenecin 4, from the larval hemolymph of the beetle <I>Tenebrio molitor</I>. Tenecin 4 contains 14% glycine residues and has moderate similarities both to the C-terminal region of <I>Drosophila</I> attacin and to silk-moth gloverin proteins. Purified tenecin 4 showed bactericidal activity against Gram-negative <I>Escherichia coli</I> but not against Gram-positive <I>Bacillus subtilis</I> or the fungus <I>Candida albicans</I>. Tenecin 4 production was induced by Toll cascade-activating ligands, such as β-1,3-glucan, lysine-type peptidoglycan and active Spätzle, and by the probable Imd pathway-activating ligand monomeric <I>meso</I>-diaminopimelic acid-type peptidoglycan. Taken together, these data show that tenecin 4 is a defense protein against Gram-negative pathogens and is induced by multiple ligands in <I>Tenebrio</I> larvae.</P>
Chae, Won Soek,Kim, Sang Hyun,Cho, Sung Hwan,Lee, Joon Ho,Lee, Mi Sun The Korean Pain Society 2016 The Korean Journal of Pain Vol.29 No.4
The superficial peroneal nerve is vulnerable to damage from ankle sprain injuries and fractures as well as surgery to this region. And it is also one of the most commonly involved nerves in complex regional pain syndrome type II in the foot and ankle region. We report two cases of ultrasound-guided pulsed radiofrequency treatment of superficial peroneal nerve for reduction of allodynia in CRPS patients.