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Investigation on Stabilization of Food Waste for Co - digestion Treatment
Kwon,Soon Sang,Kim,Seong Jung,Huh,Jun Yong 한국산업안전학회 2001 한국안전학회지 Vol.16 No.5
As making use of the Anaerobic Digestor remaining capacity, the study evaluated the possibility of happening by working together concentration sludge in the Co-digestion and food waste. First it could remove the food waste effectively and secondly it could make good use of the sewage disposal plant and increase the methane gas emission in order to save the energy expenses, it saved a reasonable amount of many from our budget. Though the study is the fundamental research (Hydrolysis & Acid Fermentation Experiment) to improve and create a good environmental facility.
Nanoporous In-MOF with multiple one-dimensional pores
Huh, Seong,Kwon, Tae-Hwan,Park, Noejung,Kim, Sung-Jin,Kim, Youngmee Royal Society of Chemistry 2009 Chemical communications Vol.2009 No.33
<P>A topologically interesting nanoporous In-MOF, (Et<SUB>2</SUB>NH<SUB>2</SUB>)[In(2,6-NDC)<SUB>2</SUB>·2H<SUB>2</SUB>O·DEF], was prepared and its crystal structure and gas sorption properties were investigated with experiment and calculation.</P> <P>Graphic Abstract</P><P>An indium MOF, the first example of a 4-fold interpenetrated 4<SUP>3</SUP>·6<SUP>2</SUP>·8-<B>gis</B> network topology, with multi-length scale one-dimensional channels has been obtained. It has permanent porosity with a BET surface area of 891.2 m<SUP>2</SUP> g<SUP>−1</SUP> and an H<SUB>2</SUB> uptake of 1.62 wt% at 1 bar and 77 K. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=b905138d'> </P>
Kwon, Tae-Hwan,Jung, Suhyun,Kim, Hee-Jin,Park, Seongsoon,Kim, Sung-Jin,Huh, Seong WILEY-VCH Verlag 2009 European journal of inorganic chemistry Vol.2009 No.19
<P>A facile method was developed for the preparation of bimodal mesoporous siliceous materials with nanostructured pores in which a cationic organic template, n-hexadecyltrimethylammonium hydroxide, was employed as a base catalyst as well as a mesopore structure-directing agent during the slow condensation of tetraethoxysilane. It was possible to alter the pore orientations of smaller pores by adding neutral auxiliary templates such as Brij76 and P123. A series of biomodal mesoporous carbons was also obtained from the bimodal mesoporous silica materials through a nanocasting process. The resulting bimodal mesoporous carbons exhibited decent hydrogen uptake values at 77 K. The maximum hydrogen uptake was 1.33 wt.-% for the sample having the narrowest pores, while keeping a relatively large pore volume. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)</P> <B>Graphic Abstract</B> <P>A simple preparation method of various bimodal mesoporous silica and carbon materials with interesting nanostructures was developed. Their hydrogen uptake abilitieswere investigated at 77 K. The sample with small pores and a large pore volume showed enhanced hydrogen sorption ability. <img src='wiley_img/14341948-2009-2009-19-EJIC200900153-fig000.gif' alt='wiley_img/14341948-2009-2009-19-EJIC200900153-fig000'> </P>
Genetic structure and variability of the working dog inferred from microsatellite marker analysis
Kwon, Yun-Jeong,Choi, Bong-Hwan,Eo, Jungwoo,Kim, Choongrak,Jung, Yi-Deun,Lee, Ja-Rang,Choi, Yuri,Gim, Jeong-An,Lee, Dong-Hoon,Ha, Ji-Hong,Kim, Dae-Soo,Huh, Jae-Won,Kim, Tae-Hun,Seong, Hwan-Hoo,Kim, He Springer-Verlag 2014 Genes & Genomics Vol.36 No.2
Working dogs serve as military watch dogs, search dogs, rescue dogs, and guide dogs with un-come-at-able character. They are drafted by in-training examination including concentration, capacity for locomotion, boldness and earthly desires. In this study, genetic diversity and relationships among two groups of working dogs (pass and fail group in-training examination) were assessed based on 15 microsatellite markers in 25 individuals of working dogs (military watch dogs and Korean search dogs). For the 15 microsatellite markers, the values of allelic richness (A (R) ) ranged from 2.21 (pass group) to 1.60 (fail group) in military watch dogs, while A (R) ranged from 2.79 (pass group) to 2.72 (fail group) in Korean search dogs. Among 52 different alleles of military watch dogs, 22 alleles were detected in pass group only, while 8 alleles in fail group only. In case of Korean search dogs, 3 alleles were observed in pass group only, while 13 alleles in fail group only. These group-specific unique alleles reflect good biomarker for selecting working dogs (military watch dogs and Korean search dogs), indicating that those group specific microsatellite alleles could separate working dogs to be pass or fail group in out-training dog population. Taken together, this study demonstrates the feasibility of microsatellite analyses for the selection of superior working dogs objectively. Furthermore, this approach could be used for the proper selection of working dogs in combination with in-training examination.
Growth of Epitaxial MgB<sub>2</sub> Thick Films with Columnar Structures by Using HPCVD
Seong, W. K.,Huh, J. Y.,Kang, W. N.,Kim, J.-W.,Kwon, Y.-S.,Yang, N.-K.,Park, J.-G. Wiley - VCH 2007 CHEMICAL VAPOR DEPOSITION -WEINHEIM- Vol.13 No.12
<P>Epitaxial MgB<SUB>2</SUB> thick films are grown on Al<SUB>2</SUB>O<SUB>3</SUB> substrates at 600 °C by using the hybrid physical (HP)CVD technique. In order to obtain a high magnesium vapor pressure around the substrates, we use a special susceptor having a susceptor cap and achieve a very high growth rate of 0.17 &mgr;m min<SUP>–1</SUP>. Hexagonal-shaped columnar structures are observed by cross-sectional and planar-view transmission electron microscope (TEM) images. For the 1.7 &mgr;m thick film, the T<SUB>c</SUB> is observed to be 40.5 K with a J<SUB>c</SUB> of 1.5 × 10<SUP>6</SUP> A cm<SUP>–2</SUP> at 30 K. The vortex pinning mechanism by intercolumnar boundaries will be discussed.</P> <B>Graphic Abstract</B> <P>By using novel HPCVD technique with a special susceptor and a susceptor cap, epitaxial MgB<SUB>2</SUB> thick films with columnar structures are successfully fabricated at low temperatures (below 600 °C). The susceptor cap significantly enhances the local magnesium vapor pressure around the substrates so that a very high growth rate of 0.17 &mgr;m/min could be achieved. For the 1.7-&mgr;m-thick film, the T<SUB>c</SUB> was observed to be 40.5 K.</P>
UNC93B1 is essential for the plasma membrane localization and signaling of Toll-like receptor 5
Huh, Ji-Won,Shibata, Takuma,Hwang, Misun,Kwon, Eun-Hye,Jang, Min Seong,Fukui, Ryutaro,Kanno, Atsuo,Jung, Da-Jung,Jang, Myoung Ho,Miyake, Kensuke,Kim, You-Me National Academy of Sciences 2014 PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF Vol.111 No.19
<P>The proper trafficking and localization of Toll-like receptors (TLRs) are important for specific ligand recognition and efficient signal transduction. The TLRs sensing bacterial membrane components are expressed on the cell surface and recruit signaling adaptors to the plasma membrane upon stimulation. On the contrary, the nucleotide-sensing TLRs are mostly found inside cells and signal from the endolysosomes in an acidic pH-dependent manner. Trafficking of the nucleotide-sensing TLRs from the endoplasmic reticulum to the endolysosomes strictly depends on UNC93B1, and their signaling is completely abolished in the <I>3d</I> mutant mice bearing the H412R mutation of UNC93B1. In contrast, UNC93B1 was considered to have no role for the cell surface-localized TLRs and signaling via TLR1, TLR2, TLR4, and TLR6 is normal in the <I>3d</I> mice. Unexpectedly, we discovered that TLR5, a cell surface receptor for bacterial protein flagellin, also requires UNC93B1 for plasma membrane localization and signaling. TLR5 physically interacts with UNC93B1, and the cells from the <I>3d</I> or UNC93B1-deficient mice not only lack TLR5 at the plasma membrane but also fail to secret cytokines and to up-regulate costimulatory molecules upon flagellin stimulation, demonstrating the essential role of UNC93B1 in TLR5 signaling. Our study reveals that the role of UNC93B1 is not limited to the TLRs signaling from the endolysosomes and compels the further probing of the mechanisms underlying the UNC93B1-assisted differential targeting of TLRs.</P>