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Kim, Heonjo,Chae, Youngjoo,Lee, Duck Hyun,Kim, Minsik,Huh, Jiyoung,Kim, Youngki,Kim, Hyunjin,Kim, Hyun Jung,Kim, Sang Ouk,Baik, Hionsuck,Choi, Kihang,Kim, Jong Seung,Yi, Gi-Ra,Lee, Kwangyeol WILEY-VCH Verlag 2010 Angewandte Chemie Vol.122 No.33
<B>Graphic Abstract</B> <P>Eine doppelte Rolle spielen Pd-Nanopartikel bei der Umwandlung von Fe-Nanopartikeln und einer P-Quelle in Fe<SUB>2</SUB>P-Nanostäbchen: als Katalysatoren, die Fe-Nanopartikel unter Bildung löslicher Vorstufen destabilisieren, und als Katalysezentren für das Wachstum von Nanostäbchen (siehe Bild). Durchmesser und Länge der Nanostäbchen lassen sich über den Durchmesser der Pd-Nanopartikel bzw. das Fe/Pd-Verhältnis einstellen. <img src='wiley_img_2010/00448249-2010-122-33-ANGE201001822-content.gif' alt='wiley_img_2010/00448249-2010-122-33-ANGE201001822-content'> </P>
Kim, Heonjo,Chae, Youngjoo,Lee, Duck Hyun,Kim, Minsik,Huh, Jiyoung,Kim, Youngki,Kim, Hyunjin,Kim, Hyun Jung,Kim, Sang Ouk,Baik, Hionsuck,Choi, Kihang,Kim, Jong Seung,Yi, Gi-Ra,Lee, Kwangyeol WILEY-VCH Verlag 2010 Angewandte Chemie Vol.49 No.33
<B>Graphic Abstract</B> <P>Playing a dual role as a catalyst that destabilizes Fe nanoparticles to form soluble precursors in situ and as a catalytic center for nanorod growth allows Pd nanoparticles to transform Fe nanoparticles and a P source into Fe<SUB>2</SUB>P nanorods (see scheme). The diameter and length of the Fe<SUB>2</SUB>P nanorods can be fine-tuned by means of the diameter of the Pd nanoparticles and the Fe/Pd ratio, respectively. <img src='wiley_img_2010/14337851-2010-49-33-ANIE201001822-content.gif' alt='wiley_img_2010/14337851-2010-49-33-ANIE201001822-content'> </P>
Highly Photosensitive J‐Aggregated Single‐Crystalline Organic Transistors
Kim, Kyung Hwan,Bae, Suk Young,Kim, Youn Sun,Hur, Jung A.,Hoang, Mai Ha,Lee, Tae Wan,Cho, Min Ju,Kim, Youngmee,Kim, Minsik,Jin, Jung‐,Il,Kim, Sung‐,Jin,Lee, Kwangyeol,Lee, Suk Joong,Choi, WILEY‐VCH Verlag 2011 Advanced Materials Vol.23 No.27
<P><B>Anthracene‐based conjugated molecules</B> are synthesized and J‐aggregations are clearly observed in a single‐crystal structure study. Single‐crystal‐based field‐effect transistors (FETs) exhibit high field‐effect mobility. They displayed dramatic photoinduced enhancement of the drain current and showed unusually high photoresponsivity under extremely low intensity light. Due to the photoinduced enhancement of excitons, single and multiple‐stage memory operations are achieved.</P>
토종 실용계의 사육밀도 및 사료 내 에너지 수준에 따른 생산성, 혈액, 면역 및 계육 품질에 미치는 영향
김광열(KwangYeol Kim),전진주(Jin-Joo Jeon),김현수(Hyunsoo Kim),손지선(Jiseon Son),김희진(Hee-Jin Kim),유아선(Are-Sun You),홍의철(Eui-Chul Hong),강보석(Boseok Kang),강환구(Hwan Ku Kang) 한국가금학회 2021 韓國家禽學會誌 Vol.48 No.2
본 연구는 토종 실용계 사육 시 사육밀도와 에너지 함량에 따른 생산성, 혈액 성분, 면역 및 계육품질에 미치는 영향에 대해 구명하고자 수행되었다. 토종닭 병아리 240수를 공시하여 4처리 4반복 반복당 15수씩 완전 임의 배치하였다. 처리구는 사육밀도 2 수준(14, 16 birds/m2)과 에너지 2 수준 [ME kcal/kg; High: starter(3,150), grower(3,200), Final(3,250); Low: starter(2,950), grower(3,000), Final(3,050)]으로 2 × 2 요인실험 설계하였다. 체중분석 결과 SD 14 처리구와 EL High 처리구에서 유의적으로 높은 것으로 나타났다. 증체량에서는 초기와 후기에서 에너지 함량에 따라 EL High 처리구가 유의적으로 높게 나타났으며, 전구간에서는 사육밀도와 에너지 함량에 따라 SD 14 처리구와 EL High 처리구가 유의적으로 높게 나타났다. 사료섭취량은 초기, 중기와 전구간에서 사육밀도에 따라 SD 14 처리구가 유의적으로 높게 나타났다. 사료 요구율은 에너지 함량에 따라 EL High 처리구가 유의적으로 낮게 나타났다. 혈액 내 생화학 조성 결과 AST에서는 사육밀도에 따라 SD 16 처리구가 높게 나타났다. 면역글로블린과 코티솔 분석결과 IgM에서 사육밀도 × 에너지 함량에 따라 유의적인 차이가 나타났으나, 코티솔에서는 유의적인 차이는 나타나지 않았다. 결론적으로 사육밀도가 높을수록 섭취경쟁으로 인하여 AST가 증가하였고, 이로 인해 생산성이 감소되었다. 그리고 에너지 함량이 높을수록 생산성이 개선되었다. 그러나 혈액, 면역 및 계육 품질의 결과는 일정하지 않았으며, 좀 더 자세한 연구가 필요할 것으로 보인다. The study determined the effects of stock density (SD) and energy level (EL) on growth performance, serum biochemistry, and meat quality in Korean native chickens. A total of 240 chickens were randomly assigned to one of the four treatments including two stock density (low, 14, and high, 16 chickens per m²) and two energy level (low, 2,950, 3,000, 3050 ME kcal/kg, and high 3,150, 3,200, 3,250 ME kcal/kg, for starter, grower, and finisher, respectively). During the whole period of the experiment, the chickens were fed ad libitum. The greater final body weight and weight gain were achieved in chickens fed high energy diet, whereas the final body weight and weight gain were significantly reduced in high-density treatment compared with the low density. Chickens in low-density groups had a higher feed intake compared with high-density treatment, however, the energy level did not affect the feed intake. An improved overall feed conversion ratio was detected in the high energy treatment. There was a significant interaction between stock density and energy level on cholesterol concentration. The concentration of aspartate transaminase in serum was increased by higher stock density. There was a significant treatment interaction on IgM levels. Moreover, the carcass rate was significantly increased in the high energy level treatment. Based on the findings, we suggest that rearing chickens in low density with high dietary energy levels could be beneficial by improving the growth performance.
Sun Kim, Youn,Young Bae, Suk,Hwan Kim, Kyung,Wan Lee, Tae,Hur, Jung A,Ha Hoang, Mai,Ju Cho, Min,Kim, Sung-Jin,Kim, Youngmee,Kim, Minsik,Lee, Kwangyeol,Joong Lee, Suk,Hoon Choi, Dong Royal Society of Chemistry 2011 Chemical communications Vol.47 No.31
<P>A new pyrene-cored π-conjugated molecule has been synthesized through Sonogashira coupling reaction. The single-crystalline microribbon-based FET exhibited the highest mobility of 0.7 cm<SUP>2</SUP> V<SUP>−1</SUP> s<SUP>−1</SUP> (<I>I</I><SUB>on</SUB>/<I>I</I><SUB>off</SUB> > 10<SUP>6</SUP>). Single-crystalline microribbons were employed to operate in an organic phototransistor (OPT) under very low light intensity (<I>I</I> = 5.6 μW cm<SUP>−2</SUP>).</P> <P>Graphic Abstract</P><P>A new pyrene-cored π-conjugated molecule shows <I>I</I><SUB>on</SUB>/<I>I</I><SUB>off</SUB> > 10<SUP>6</SUP> in an FET. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c1cc11589h'> </P>
( Kwangyeol Kim ),( Akshat Goel ),( Suhyup Lee ),( Yohan Choi ),( Byung Jo Chae ) 한국동물자원과학회(구 한국축산학회) 2015 한국축산학회지 Vol.57 No.21
The digestibility of different vegetable protein sources were investigated and the effects of supplementing canola meal (CM) as partial inclusions were studied in growing pigs, to determine the performance parameters and its economic importance. In Exp. 1, four pigs (average initial BW = 15.4 ± 0.35 kg, 5 weeks of age) fitted with simple T-cannula at terminal ileum, were fed four diets following repeated 4 × 4 Latin square design having adoption period of 7 days. Diet 1 was Nitrogen free diet containing corn starch. Diets 2, 3, and 4 were the basal diet supplemented with soybean meal (SBM), rapeseed meal (RSM), and domestic CM respectively. The AID of crude protein was decrease in RSM in comparison to SBM supplementation. The AID of Dietary indispensable amino acids (DIAA) such as Lys, Meth, Pha, and dispensable amino acid Ala, Pro, Asp were decreased (P < 0.05) in RSM supplemented diets. The SID of DIAA does not differ but the SID of Asp was higher (P < 0.05) in RSM and CM diets while SID of Pro was lower (P < 0.05) in RSM in comparison to SBM supplemented diets. In Exp. 2, 192 growing pigs (average initial BW 24.76 ± 2.55 kg) were randomly allotted to four dietary treatments with increasing levels of CM i.e. 0, 3.75, 7.50, and 11.25 % respectively. Diets were fed in meal form for 35 days. Increasing CM levels in diets had no effects (P > 0.05) on growth performance and apparent total tract digestibility (ATTD) of nutrients and energy. Total weight gain, total feed intake, and feed cost per kg weight gain were not affected by increasing levels of CM in diets but total feed cost (TFC) per pigs was linearly reduced (26.463 to 25.674; P < 0.05). Broadly, the AID, and SID of amino acid was reduced in RSM but was not effected in CM in comparison to SBM supplemented pigs. Moreover, increasing levels of CM in pigs diet had no effect on the ATTD and performance but TFC per pig was reduced. Thus CM inclusion of up to 11.25 % in diets can be used for reducing the production cost in growing pigs without any negative effect.
Kim, MinJu,Ingale, Santosh Laxman,Hosseindoust, Abdolreza,Choi, YoHan,Kim, KwangYeol,Chae, ByungJo Asian Australasian Association of Animal Productio 2021 Animal Bioscience Vol.34 No.8
Objective: This study was conducted to investigate the synergistic effect of exogenous multienzyme and phytase on growth performance, nutrients digestibility, blood metabolites, intestinal microflora, and morphology in broilers fed corn-wheat-soybean meal diets. Methods: A 2×2 factorial design was used in this study. Four dietary treatments consisted of i) basal diets (corn-wheat-soybean meal based diets without multi-enzyme and phytase), ii) basal diets with phytase (0.05%), iii) basal diets with exogenous multi-enzyme (0.05%), and iv) basal diets with exogenous multi-enzyme including phytase (0.05%). A total of 480 broiler chickens (Ross 308 - one day old) were weighed and allotted to thirty-two cages (15 birds per cage), and chicks were randomly allocated to four dietary treatments. Results: The body weight gain and feed conversion rate were improved by supplementation of exogenous multi-enzyme containing phytase during the finisher period (p<0.05). The birds fed diets with exogenous multi-enzyme containing phytase had a significantly greater digestibility of dry matter, gross energy, crude protein, calcium, and phosphorus compared with birds fed non-supplemented diets (p<0.05). The chickens fed diets with exogenous multi-enzyme containing phytase showed a higher concentration of Ca and P in the serum (p<0.05). The population of Lactobacillus spp., Escherichia coli, and Clostridium were not affected in the ileum and cecum of chickens fed enzyme-supplemented diets. The dietary supplemental exogenous multi-enzyme containing phytase showed a significant improvement in villus height, crypt depth, and villus height and crypt depth ratio, compared to basal diets or dietary supplemental phytase (p<0.05). Conclusion: The supplementation of the exogenous multi-enzyme containing phytase synergistically improved the growth performance, nutrients digestibility, and villus height of the small intestine of broiler chickens fed a corn-wheat-soybean meal based diets.
Kim, Taekhoon,Cho, Eun‐,Jin,Chae, Youngjoo,Kim, Minsik,Oh, Aram,Jin, Juhong,Lee, Eun‐,Sook,Baik, Hionsuck,Haam, Seungjoo,Suh, Jin‐,Suck,Huh, Yong‐,Min,Lee, Kwangyeol WILEY‐VCH Verlag 2011 Angewandte Chemie Vol.123 No.45
<P><B>Bildverstärkung</B>: Igelförmige MnO@Mn<SUB>3</SUB>O<SUB>4</SUB>‐Kern‐Schale‐Nanopartikel können durch anisotropes Ätzen hergestellt werden und eignen sich als pH‐aktivierbare <I>T</I><SUB>1</SUB>‐Kontrastmittel in der Kernspintomographie. Die aus der MnO‐Phase an Stellen in den Tumorzellen mit niedrigem pH‐Wert freigesetzten Manganionen erhöhen den <I>T</I><SUB>1</SUB>‐Kontrast der gesamten Tumormasse.</P>