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Morphology Control of Highly Sulfonated Block Copolymers by a Simple Thermal Process
Baek, Kyung-Youl,Kim, Hyun-Ji,Lee, Sang-Ho,Cho, Kie-Yong,Kim, Hyeong Tae,Hwang, Seung Sang WILEY-VCH Verlag 2010 Macromolecular Chemistry and Physics Vol.211 No.6
<P>Well-defined sulfonated block copolymers were prepared by direct thermolysis with block copolymers of n-butyl acrylate (nBA) and neopentyl styrene sulfonated (NSS), which were synthesized by Cu-based living radical polymerization (<TEX>$\overline M _{\rm w} /\overline M _{\rm n}$</TEX> <1.20). A simple thermal process for 10 min at 150 °C completely deprotected the neopentyl groups in the poly(NSS) block segment to give fully sulfonated polystyrene backbone. SAXS profile of the block copolymer with 47 wt.-% of poly(NSS) showed lamella structure, which appeared more clearly with long ranged order after sulfonation of the block copolymer.</P><P> <img src='wiley_img_2010/10221352-2010-211-6-MACP200900475-gra001.gif' alt='wiley_img_2010/10221352-2010-211-6-MACP200900475-gra001'> </P> <B>Graphic Abstract</B> <P>Well-defined lamellar structures comprising 100% sulfonated polystyrene and poly(n-butyl acrylate) were directly achieved by a simple heating procedure from neutral poly[(n-butyl acrylate)-block-(neopentyl styrene sulfonate)] in bulk and thin film states. <img src='wiley_img_2010/10221352-2010-211-6-MACP200900475-content.gif' alt='wiley_img_2010/10221352-2010-211-6-MACP200900475-content'> </P>
A New Black Soybean Cultivar, “Geomjeongsaeol” with Large Seed,Early Maturity and Lodging Tolerance
In-Youl Baek,Keum-Yong Park,Jung-Kyung Moon,Yong-Ho Kim,Sun-Lim Kim,Ja-Hwan Ku,Yeong-Ho Lee,Yong-Hwan Ryu,In-Youl Baek,Won-Young Han,Hyun-Tae Kim,Jun-Hyeon Cho,Jong-Min Ko,Doo-Chull Shin,Duck-Yong Suh 한국육종학회 2005 한국육종학회지 Vol.37 No.5
A new black seed coated soybean cultivar with yellow cotyledon, Geomjeongsaeol was developed at the YeongnamAgricultural Research Institute (YARI) in 2004. Geomjeongsaeol was selected from a cross Keunol/ Geomjeongol. The prelimi-nary, advanced, and regional yield trials for evaluation and selection of this line (Milyang 123) were carried out from 1999 tospherical seed shape, oval leaflet shape, and large seed size (31.1 grams per 100 seeds), and it was 4 days later in maturity than thecheck variety Geomjeongol. In the seed quality such a crude protein, oligo-saccharide, and anthocyanin contents, Geomjeongsaeolwas higher than check variety, and it has good adaptability for cooking with rice. It also has been identified to have resistance tosaeol was 2.34 ton per hectare in the regional yield trials (RYT) carried out for two years from 2003 to 2004 which was 26 percenthigher than the check variety Geomjeongol.
Youl-Chang Baek,Minseok Kim,Jin-Young Jeong,Young-Kyoon Oh,Sung-Dae Lee,Yoo-Kyung Lee,Sang-Yun Ji,Hyuck Choi 한국동물생명공학회(구 한국동물번식학회) 2019 Journal of Animal Reproduction and Biotechnology Vol.34 No.3
This study was performed to evaluate the effect of heat stress on the status of physiological responses, blood parameter, serum T3 and cortisol, and heat shock proteins (HSP 27, 70, and 90) of Hanwoo cattle. Six Hanwoo steers (242.8 ± 7.2 kg of BW) were housed in the climate-controlled respiration chambers. The experiment consisted of 7 days (control; 0 day) at thermoneutral (air temperature (Ta) of 15oC and relative humidity (RH) of 60%; temperature-humidity index (THI) = 64), and by 3 and 6 days (treatment groups) at heat stress (Ta of 35oC and RH of 60%; THI = 87). Body temperature of each parts (frank, rump, perineum and foot) and rectal temperature elevated in heat stress groups (3 days and 6 days) than the control group (0 day). Respiration rates increased in 3 days and 6 days (88.5 ± 0.96 bpm and 86.3 ± 0.63 bpm, respectively) from 0 days (39.5 ± 0.65 bpm). Feed intake significantly decreased in heat stress groups (3 days and 6 days, 3.7 ± 0.14 kg and 4.0 ± 0.15 kg, respectively) than the control group (0 day, 5.0 ± 0.00 kg). In addition, final BW significantly decreased in heat stress groups (3 days and 6 days, 211.8 ± 4.75 kg and 215.5 ± 3.50 kg, respectively) than the control group (0 day, 240.0 ± 25.00 kg). However, heat stress has no significant effect on blood parameter, serum T3 and cortisol. Nevertheless, heat stress increased HSPs mRNA expression in liver tissue, and serum concentration of HSPs. Despite Hanwoo cattle may have high adaptive ability to heat stress, our results suggested that heat stress directly effect on body temperature and respiration rate as well as serum and tissue HSPs. Therefore, we are recommended that HSPs could be the most appropriate indicators of Hanwoo cattle response to heat stress.
Joong Kyung Moon,Young Ho Lee,Won Young Han,In Youl Baek,Jong Min Ko,Hyun Tae Kim,Hong Tae Yun,Keum Ryong Park,Sang Ook Shin,Nam Suk Kang,Ki Won Oh,Chung Keun Lee,Hong Sik Kim 한국육종학회 2006 한국육종학회지 Vol.38 No.4
A new light green seed coat Azuki bean cultivar, "Yeonkeum" was developed at the National Institute of Crop Science(NICS) and the Yeongnam Agricultural Research Institute (YARI) in 2005. Yeonkeum was selected from the cross between Jaja-sodun and "IT12099