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송민정,송혁,이태강,기노갑,박현구,김선우 대한건축학회 2004 대한건축학회논문집 Vol.20 No.5
The "Sound Classification System on Floor Impact Sound Insulation Performance" is being studied in Korea. For that study, vocabularies appropriate for evaluation and reporting are needed. In this study, adequate words for evaluating floor impact sound have been extracted by reviewing the existing vocabularies and augmenting this with the results of a questionnaire prepared especially for apartment dwellers. As a result of this study, followings are suggested. 1) The heavy impact sound sources are more highly ranked than light impact ones. And the louder sound sources are the more accumulated points. 2) Highly ranked vocabularies are different for each source. 3) Floor impact sound evaluating words such as ‘Annoying’, ‘Disagreeable’, ‘Strident’, ‘Disturbed’, and ‘Dissonant’ are highly ranked. ‘Annoying’ is the word most accurately expressing the subjects' unpleasant feeling of domestic floor impact noise. 4)‘Unpleasant’, ‘Noisy’, ‘Irritating’, ‘Annoying’ are main unpleasant factors to floor impact sounds occurring in our domestic apartment houses.
Yu Jin Cho,Jae Chul Lee,Bong Gu Kang1,2,Jaeyeol An,Hyeon Suk Song1,2,Onju Son,Do-Hyun Nam,Choong Ik Cha,Kyeung Min Joo 대한해부학회 2011 Anatomy & Cell Biology Vol.44 No.2
Nitric oxide (NO) modulates the activities of various channels and receptors to participate in the regulation of neuronal intracellular Ca2+ levels. Ca2+ binding protein (CaBP) expression may also be altered by NO. Accordingly, we examined expression changes in calbindin-D28k, calretinin, and parvalbumin in the cerebral cortex and hippocampal region of neuronal NO synthase knockout(−/−) (nNOS−/−) mice using immunohistochemistry. For the first time, we demonstrate that the expression of CaBPs is specifically altered in the cerebral cortex and hippocampal region of nNOS−/− mice and that their expression changed according to neuronal type. As changes in CaBP expression can influence temporal and spatial intracellular Ca2+ levels, it appears that NO may be involved in various functions, such as modulating neuronal Ca2+ homeostasis, regulating synaptic transmission, and neuroprotection, by influencing the expression of CaBPs. Therefore, these results suggest another mechanism by which NO participates in the regulation of neuronal Ca2+ homeostasis. However, the exact mechanisms of this regulation and its functional significance require further investigation.
Effect of number of cross-linkable sites on proton conducting, pore-filling membranes
Kang, Hyeon-gu,Lee, Mi-Soon,Sim, Woo-Jong,Yang, Tae-Hyun,Shin, Kyung-Hee,Shul, Yong-Gun,Choi, Young-Woo Elsevier 2014 Journal of membrane science Vol.460 No.-
Highly cross-linked membranes were prepared using a pore-filling technique for application in polymer electrolyte fuel cells (PEFCs). The electrolyte that fills the porous substrate should have a higher ion exchange capacity (IEC) than membranes prepared by a casting method. Hence, a cross-linking agent is employed to prevent the polymer electrolyte from dissolving in water. The goal of this study is to improve the chemical, mechanical, and electrochemical stability in membranes without decreasing the IEC. We evaluated the membrane characteristics using two different types of cross-linking agents-1,3,5-triacryloylhexahydro-1,3,5-triazine (C1) with three cross-linkable sites and N,N'-ethylene bisacrylamide (C2) with two cross-linkable sites. The membranes with Cl improved the chemical and electrochemical properties without a remarkable decrease in the IEC and proton conductivity compared to the membranes created with C2. Moreover, the Cl membrane also demonstrated an improvement in the electrochemical durability during the accelerated lifetime test. (C) 2014 Elsevier B.V. All rights reserved
Kang, Jun-Gu,Cho, Yoon-Kyoung,Jo, Yong-Sun,Chae, Jeong-Byoung,Oh, Sung-Suck,Kim, Kye-Hyung,Ko, Mee-Kyung,Yi, Jongyoun,Choi, Kyoung-Seong,Yu, Do-Hyeon,Kim, Hyeon-Cheol,Park, Jinho,Park, Bae-Keun,Choi, Elsevier 2018 Ticks and tick-borne diseases Vol.9 No.5
<P><B>Abstract</B></P> <P>Severe fever with thrombocytopenia syndrome virus (SFTSV) is an emerging tick-borne pathogen in China, Japan, and the Republic of Korea (ROK). The aim of this study was to investigate the prevalence of SFTSV antigens and anti-SFTSV antibodies in black goats (<I>Capra hircus coreanae</I>) throughout the ROK. Sera were collected from 737 black goats in nine provinces in the ROK. Eighteen of 737 (2.4%) goat sera were positive for SFTSV on one-step reverse transcription nested polymerase chain reaction. The amplified 346-bp S segments of SFTSV sequences were classified into three genotypes (BG1, BG2, and BG3), and were included in the Japanese clade rather than the Chinese clade, based on phylogenetic analysis. Forty-three of 624 (6.9%) serum samples were seropositive for anti-SFTSV antibodies on enzyme-linked immunosorbent assay analysis. This study is the first to examine the molecular prevalence of SFTSV in goats and the first to perform serological detection of anti-SFTSV antibodies in livestock in the ROK. Moreover, the results indicate that SFTSV is widely distributed in goats and that additional monitoring for SFTSV is needed in livestock in the ROK.</P>