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Tae-Il Kim,Dong-Hyun Lim,Tai-Young Hur,Seung-Min Ha,Hyun-Jong Kim,Seong-Min Park,Ji-Hoo Park,Sang-Bum Kim,Ji-Hwan Lee,Hyun-Joo Lim,Jeong-Sung Jung,Ha-Yeon Jeong,Jay Lee,Kwang-Seok Ki,Vijayakumar Mayak 경상대학교 농업생명과학연구원 2019 농업생명과학연구 Vol.53 No.4
An experiment was carried out to assess the effect of feed selenium-lysine (Se-Lys) supplementation on milk compositions and serum biochemical indices in Saanen dairy goats in Korea. A total of twelve 36 months old Saanen lactating dairy goats (47±6.21 kg) fed the similar dry matter intake twice a day at 2% of BW (DMI) (10.9% moisture of concentrate and 19% moisture of roughage), milk yield (2.5 kg/d) and parity (2) were randomly selected and subjected for the present study, divided into two groups with six goats in each group. The goats in the control group received rice hulls (10 g/ day) only, and did not receive Se-Lys; goats in the treatment group were fed 0.06 g of Se-Lys with 10 g of rice hulls every day before feeding roughage for six weeks. The milk sample was collected every week, and its compositions were analyzed. The results of the present study showed that there is no significantly increased milk production in Se-Lys treated group goats when compared with control group goats. But, Se-Lys treatment significantly increased the milk protein content (3.98±0.16%), fat (3.72±0.27%), lactose (4.07±0.14%), total solids (12.51±0.28%) and urea (14.42±1.45 mg/dl) content as compared to the control group goats (p<0.05). The somatic cell counts (207,740±28.81 cells/ml) were significantly lower in the Se-Lys treated group than in the control group (p<0.05). Also, the results of the current study showed that supplementation of Se-Lys were significantly decreased the blood biochemical indices of IL-6 (34.34±6.04 pg/ml), TNT-α (0.56±0.22 ng/ml), MDA (5.07±1.03 ng/ml), GPx-1 (9.07±5.17 ng/ml), sCD4 (2.64±1.02 ng/ml) and sCD8 (5.08±2.08 ng/ml) level when compared with without addition of Se-Lys group dairy goats (p<0.05). On the other hand, the selenoprotein P (1,580.18±127.62 ng/ml) level was significantly higher in Se-Lys supplemented group than in the control group (p<0.05). Based on the study results, it was concluded that feed Se-Lys supplementation may improve milk yield with positively improved protein, fat, lactose, total solids, urea content, and biochemical indices without negative effects on milk production traits.
Hur, Tai-Young,Jung, Young-Hun,Kang, Seog-Jin,Choe, Chang Yong,Kim, Ui-Hyung,Ryu, Il-Sun,Son, Dong-Soo,Park, Sung-Jai,Kim, Ill-Hwa The Korean Society of Veterinary Science 2011 大韓獸醫學會誌 Vol.51 No.3
The objective of this study was to evaluate the duration of retained placenta (RP) on postpartum diseases and culling in dairy cows. Data were collected from 456 Holstein cows between 2008 and 2010. RP (${\geq}$ 24 h after parturition) and postpartum diseases were diagnosed by farm managers and a veterinarian according to standardized definitions. The overall incidence rate of RP was 14.0%, and the incidence rate of RP with fourth and higher parity was two times that of cows having offspring for the first time. The duration of RP was 2 to 15 days with a mean of 6.8 days, except for cases of fourth and higher parity which had a mean of 10.5 days. A total of 63% of cows with RP had postpartum diseases. Among the cows diagnosed with RP, 23.4% developed metritis, and of those, 35.3% developed endometritis or pyometra. A total of 25% (n = 16) cows with RP were culled within 60 days in milk (DIM) and of those culled, 75% (n = 12) had postpartum diseases. These results suggest that RP increases the risk of postpartum diseases such as metritis and mastitis and is a culling hazard up to 60 DIM.
Hur, Saebeom,Jae, Hwan Jun,Jang, Yeonggul,Min, Seung-Kee,Min, Sang-Il,Lee, Dong Yeon,Seo, Sang Gyo,Kim, Hyo-Cheol,Chung, Jin Wook,Kim, Kwang Gi,Park, Eun-Ah,Lee, Whal Radiological Society of North America 2015 Radiology Vol. No.
<P>Purpose: To demonstrate the feasibility of foot blood flow measurement by using dynamic volume perfusion computed tomographic (CT) technique with the upslope method in an animal experiment and a human study. Materials and Methods: The human study was approved by the institutional review board, and written informed consent was obtained from all patients. The animal study was approved by the research animal care and use committee. A perfusion CT experiment was first performed by using rabbits. A color-coded perfusion map was reconstructed by using in-house perfusion analysis software based on the upslope method, and the measured blood flow on the map was compared with the reference standard microsphere method by using correlation analysis. A total of 17 perfusion CT sessions were then performed (a) once in five human patients and (b) twice (before and after endovascular revascularization) in six human patients. Perfusion maps of blood flow were reconstructed and analyzed. The Wilcoxon signed rank test was used to prove significant differences in blood flow before and after treatment. Results: The animal experiment demonstrated a strong correlation (R2 = 0.965) in blood flow between perfusion CT and the microsphere method. Perfusion maps were obtained successfully in 16 human clinical sessions (94%) with the use of 32 mL of contrast medium and an effective radiation dose of 0.31 mSv (k factor for the ankle, 0.0002). The plantar dermis showed the highest blood flow among all anatomic structures of the foot, including muscle, subcutaneous tissue, tendon, and bone. After a successful revascularization procedure, the blood flow of the plantar dermis increased by 153% (P = .031). The interpretations of the color-coded perfusion map correlated well with the clinical and angiographic findings. Conclusion: Perfusion CT could be used to measure foot blood flow in both animals and humans. It can be a useful modality for the diagnosis of peripheral arterial disease by providing quantitative information on foot perfusion status. (C) RSNA, 2015</P>
Hur, Yun-Kyung,Choi, In-Sun,Cho, Jin-Hwa,Park, Eun-Joo,Choi, Jae-Kap,Choi, Byung-Ju,Jang, Il-Sung 대한약학회 2008 Archives of Pharmacal Research Vol.31 No.2
Although anticonvulsant drugs that block voltage-dependent $Na^+$ channels have been widely used for neuropathic pain, including peripheral nerve injury-induced pain, much less is known about the actions of these drugs on immature trigeminal ganglion (TG) neurons. Here we report the effects of carbamazepine (CBZ) and amitriptyline (ATL) on tetrodotoxin-resistant (TTX-R) $Na^+$ channels expressed on immature rat TG neurons. TTX-R $Na^+$ currents $(I_{Na})$ were recorded in the presence of 300 nM TTX by use of a conventional whole-cell patch clamp method. Both CBZ and ATL inhibited TTX-R $I_{Na}$ in a concentration-dependent manner, but ATL was more potent. While CBZ and ATL did not affect the overall voltage-activation relationship of TTX-R $Na^+$ channels, both drugs shifted the voltage-activation relationship to the left, indicating that they inhibited TTX-R $Na^+$ channels more efficiently at depolarized membrane potentials. ATL showed a profound use-dependent blockade of TTX-R $I_{Na}$, but CBZ had little effect. The present results suggest that both CBZ and ATL, common drugs used for treating neuropathic pain, efficiently inhibit TTX-R $Na^+$ channels expressed on immature TG neurons, and that these drugs might be useful for the treatment of trigeminal nerve injury-induced neuropathic pain, as well as the inhibition of ongoing central sensitization, even during immature periods.
Dishing and Erosion Evaluations of Tungsten CMP Slurry inthe Orbital Polishing Syste
Sang-Ho Lee,박진구,강영재,Pan-Ki Kwon,Chang-Il Kim,Chan-Kwon Oh,Soo-Myoung Kim,Myung S. Jhon,Sean Hur,Young-Jung Kim,Bong-Ho Kim 한국전기전자재료학회 2006 Transactions on Electrical and Electronic Material Vol.7 No.4
The dishing and the erosion were evaluated on the tungsten CMP process with conventional and new developed slurry. The tungsten thin film was polished by orbital polishing equipment. Commercial pattern wafer was used for the evaluation. Both slurries were pre tested on the oxide region on the wafer surface and the removal rate was not different very much. At the pattern density examination, the erosion performance was increased at all processing condition due to the reduction of thickness loss in new slurry. However, the dishing thickness was not remarkably changed at high pattern density despite of the improvement at low pattern density. At the large pad area, the reduction of dishing thickness was clearly found at new tungsten slurry.
Characterization of a Loess Module for Manufacturing Loess Red Ginseng
Il Chool Kim,Jung Hwan Yang,Sang Sun Hur 고려인삼학회 2010 Journal of Ginseng Research Vol.34 No.4
An optimized manufacturing process was developed for the production of high-quality loess red ginseng using a hybrid process in which loess (yellow earth) was incorporated into the conventional ginseng manufacturing process system. We designed conventional ginseng processing facilities and prepared the loess module by baking loess that contained 42% water at 860℃ for 8 h. The loess module showed excellent performance in deodorization and humidity control. The optimum steaming temperature at which maximum expansion of starch organisms occurred was 90 to 98℃.
3DTV Broadcasting and Distribution Systems
Hur, Namho,Hyun Lee,Gwang Soon Lee,Sang Jin Lee,Gotchev, A,Sang-Il Park IEEE 2011 IEEE transactions on broadcasting Vol.57 No.2
<P>In this paper, the authors present three-dimensional television (3DTV) broadcasting and distribution systems that are employed to deliver a pair of stereoscopic images to mobile users, as well as users at home. First, mobile 3DTV systems and services based on DMB and DVB-H are respectively introduced. Second, fixed and high-definition 3DTV systems and services based on terrestrial digital broadcasting are described along with an introduction of experimental 3DTV services in Korea. To be specific, the authors summarize 3DTV systems from the viewpoints of target services, system and user requirements, system configurations, broadcasting trials, related standards, and technical challenges.</P>