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A New Early-Maturing, High-Quality, Lodging-Tolerant and High-Yielding Rice Cultivar, Jungsanbyeo
Kil Lim Ryu,Jeong IL Kim,You Chun Song,Jung Kon Kim,Sang Jong Lim,Ho Yeong Kim,Hun Pal Moon,Jeom Sik Lee,Hae Chune Choi,Hee Woo Lee,Yeon Kyu Hong,Dae Sik Kim 한국육종학회 2004 한국육종학회지 Vol.36 No.5
“Jungsanbyeo” is a japonica rice cultivar developed from a cross between Sambaegbyeo and Milyang107 by Sangju Substation of National Yeongnam Agricultural Experiment station, RDA in 2000. The cultivar is early matured with heading date of July 30 ordinary
Kil, Deok-Sin,Yeom, Seung-Jin,Hong, Kwon,Roh, Jae-Sung,Sohn, Hyun-Cheol,Kim, Jin-Woong,Park, Sung-Wook The Institute of Electronics and Information Engin 2005 Journal of semiconductor technology and science Vol.5 No.2
We have proposed a characteristic method to estimate real composition when multi component oxide films are deposited by ALD. Final atomic concentration ratio was theoretically calculated from the film densities and growth rates for $HfO_2$ and $Al_2O_3$ using ALD processed HfxAhOz mms.W e have transformed initial source feeding ratio during deposition to fins] atomic ratio in $Hf_xAl_yO_z$ films through thickness factors ($R_{HFO_2}$ ami $R_{Al_2O_3}$) ami concentration factor(C) defined in our experiments. Initial source feeding ratio could be transformed into the thickness ratio by each thickness factor. Final atomic ratio was calculated from thickness ratio by concentration factor. It has been successfully confirmed that the predicted atomic ratio was in good agreement with the actual measured value by ICP-MS analysis.
Hong, Sung-Youl,Kim, Dong-Gyun,Kim, Young-Ok,Park, Jung Youn,Seo, Jung-Kil,Nam, Bo-Hye,Hong, Yong-Ki Elsevier 2018 FISH AND SHELLFISH IMMUNOLOGY Vol.81 No.-
<P><B>Abstract</B></P> <P>A 5.6 kDa antimicrobial peptide (AMP) was purified from acidified gill extract of the pen shell, <I>Atrina pectinata</I>, by cation exchange and C<SUB>18</SUB> reversed-phase high performance liquid chromatography. Comparison of the amino acid sequences and molecular weight of this peptide with those of other known AMPs revealed that it had high sequence homology with that of cgMolluscidin or hdMolluscidin; it was designated apMolluscidin. apMolluscidin comprises 59 amino acid residues containing several dibasic residue repeats and sequence repeats such as Lys-Lys and Lys-Gly. apMolluscidin exhibited potent antimicrobial activity against both Gram-positive bacteria including <I>Bacillus subtilis</I> (minimal effective concentration [MEC], 2.1 μg/mL), and Gram-negative bacteria including <I>E</I>. <I>coli</I> D31 (MEC, 0.5 μg/mL), without hemolytic activity. However, it did not show any activity against fungi such as <I>Candida albicans</I>. Secondary structure prediction suggested that it might form two helical regions and have an amphipathic structure. Full-length apMolluscidin cDNA contained 812 base pairs (bp), including a 5′-untranslated region (UTR) of 82 bp, a 3′-UTR of 547 bp, and a coding sequence of 183 bp encoding 60 amino acids (containing Met). Furthermore, qPCR analyses revealed that the mature peptide translated from <I>apMolluscidin</I> mRNA is expressed in a tissue-specific manner in locations such as the gill and siphon. These results indicate that apMolluscidin might be related to the innate immune defense system of abalone and may not act directly on the bacterial membrane. This is the first report of an AMP from the pen shell with a fully identified amino acid sequence.</P> <P><B>Highlights</B></P> <P> <UL> <LI> A novel antimicrobial peptide was purified from the pen shell, <I>Atrina pectinata</I>. </LI> <LI> This was named apMolluscidin because it showed a high sequence homology with cgMolluscidin or hdMolluscidin. </LI> <LI> We found that apMolluscidin had broad-spectrum antibacterial activity and low hemolytic activity. </LI> <LI> Full-length apMolluscidin cDNA was cloned and its mRNA expression in tissues was evaluated with qPCR. </LI> </UL> </P>
Strawberry Harvesting Robot for Bench-type Cultivation
( Kil Su Han ),( Si Chan Kim ),( Young Bum Lee ),( Sang Chul Kim ),( Dong Hyuk Im ),( Hong Ki Choi ),( Heon Hwang ) 한국농업기계학회 2012 바이오시스템공학 Vol.37 No.1
Purpose: An autonomous robot was developed for harvesting strawberries cultivated in bench-type systems. Methods: The harvest robot consisted of four main components: an autonomous vehicle, a manipulator with four degrees of freedom (DOF), an end effector with two DOFs, and a color computer vision system. Strawberry detection was performed based on 3D image and distance information obtained from a stereo CCD color camera and a laser device, respectively. Results: In this work, a Cartesian type manipulator system was designed, including an intermediate revolute axis and a double driven arm-based joint axis, so that it could generate collision-free motions during harvesting. A DC servomotor-driven end-effector, consisting of a gripper and a cutter, was designed for gripping and cutting the strawberry stem without damaging the strawberry itself. Real-time position tracking algorithms were developed to detect, recognize, trace, and approach strawberries under natural light conditions. Conclusion: The developed robot system could harvest a strawberry within 7 seconds without damage.
Hong, Yun-Kyung,Song, Jong-Wook,Lee, Sang-Kil,Lee, Young-Jeon,Rho, Gyu-Jin,Kim, Joo-Heon,Hong, Yong-Geun The Korean Society of Animal Reproduction 2011 Reproductive & developmental biology Vol.35 No.2
To explore the role of histone deactylase (HDAC) activation in an in vivo model of hypertrophy, we studied the effects of Trichostatin A (TSA). TSA subjected to thoracic aortic banding (TAB)-induced pressure stress in mice. In histological observations, TAB in treated mice showed a significant hypertrophic response, whereas the sham operation remained nearly normal structure with partially blunted hypertrophy. TSA treatment had no effect (measured as HW/BW) on sham-operated animals. TAB animals treated with vehicle manifested a robust ~50% hypertrophic response (p<0.05 vs sham). TAB mice treated with 2 mg/kg/day TSA manifested a blunted growth responses, which was significantly diminished (p<0.05) compared with vehicle-treated TAB mice. TAB mice treated with a lower dose of TSA (0.5 mg/kg/day) manifested a similar blunting of hypertrophic growth (~25% increase in heart mass). Furthermore, to determine activity duration of TSA in vitro, 1 nM TSA was added to H9c2 cells. Histone acetylation was initiated at 4 hr after treatment, and it was peak up to 18 hr, then followed by significantly reduced to 30 hr. We also analyzed the expression of p53 following TSA treatment, wherein p53 expression was elevated at 4 hr, and it was maintained to 24 hr after treatment. ERK was activated at 8 hr, and maintained till 30 hr after treatment suggesting an intracellular signaling interaction between TSA and p53 expression Taken together, it is suggested that HDAC activation is required for pressure-overload growth of the heart. Eventually, these data suggest that histone acetylation may be a novel target for therapeutic intervention in pressure-overloaded cardiac hypertrophy.