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Choi, In-Cheol,Kim, Kyoung-Tae,Bang, In-Chul,Kwon, Mun-Gyeong,Lee, Jong-Ha,Lee, Bae-Ik,Cho, Sung-Hwoan The Korean Society of Fisheries and Aquatic Scienc 2010 Fisheries and Aquatic Sciences Vol.13 No.4
This study examined the effects of the dietary inclusion of various concentrations of red ginseng byproduct (RB) and a mixture containing red ginseng byproduct, garlic extract, yeast and filler (CR) on the growth, body composition, serum chemistry, and lysozyme activity of juvenile olive flounder (Paralichthys olivaceus). Juvenile fish (n= 630) weighing 5.0 g were randomly distributed into 21 180 L flow-through tanks (30 fish/tank). Seven experimental diets were prepared in triplicate: a control diet without additive, and diets containing 0.5, 1 and 2% concentrations of RB (RB-0.5, RB-1, RB-2) and CR (CR-0.5, CR-1, CR-2) at the expense of wheat flour. After an 8-week feeding trial, serum chemistry and lysozyme activity of fish were measured. Mean weight gain was significantly higher in fish fed the control diet than in fish fed the RB and CR diets. The dietary inclusion of RB and CR reduced feed utilization. Mean serum glucose and triglyceride (TG) levels were higher in fish fed the control diet than in fish fed the other diets. Mean glutamate pyruvate transaminase (GPT) levels of fish fed the control and RB-2 diets were higher than those of fish fed the RB-0.5, RB-1, CR-1, and CR-2 diets. Mean lysozyme activity levels of fish fed the RB-0.5 and RB-1 diets were higher than those of fish fed the control and CR diets. The results of this study indicate that red ginseng byproduct may be utilized as an immunostimulant rather than as a growth promoter for juvenile olive flounder. Dietary inclusion of 0.5% red ginseng byproduct effectively improved serum glucose, GPT, TG, and lysozyme activity of the fish in this study.
Mun, Kwang Ho,Yu, Gyeong Im,Choi, Bo Youl,Kim, Mi Kyung,Shin, Min-Ho,Shin, Dong Hoon The Korean Society for Preventive Medicine 2018 예방의학회지 Vol.51 No.5
Objectives: Several studies have investigated the effects of serum uric acid (SUA) levels on chronic kidney disease (CKD), with discrepant results. The effect of SUA levels on CKD development was studied in the Korean rural population. Methods: A total of 9695 participants aged ${\geq}40years$ were recruited from 3 rural communities in Korea between 2005 and 2009. Of those participants, 5577 who participated in the follow-up and did not have cerebrovascular disease, myocardial infarction, cancer, or CKD at baseline were studied. The participants, of whom 2133 were men and 3444 were women, were grouped into 5 categories according to their quintile of SUA levels. An estimated glomerular filtration rate of < $60mL/min/1.73m^2$ at the time of follow-up was considered to indicate newly developed CKD. The effects of SUA levels on CKD development after adjusting for potential confounders were assessed using Cox proportional hazard models. Results: Among the 5577 participants, 9.4 and 11.0% of men and women developed CKD. The hazard ratio (HR) of CKD was higher in the highest quintile of SUA levels than in the third quintile in men (adjusted HR, 1.60; 95% confidence interval [CI], 1.02 to 2.51) and women (adjusted HR, 1.56; 95% CI, 1.14 to 2.15). Furthermore, CKD development was also more common in the lowest quintile of SUA levels than in the third quintile in men (adjusted HR, 1.83; 95% CI, 1.15 to 2.90). The effect of SUA was consistent in younger, obese, and hypertensive men. Conclusions: Both high and low SUA levels were risk factors for CKD development in rural Korean men, while only high levels were a risk factor in their women counterparts.
Laser-Assisted Bonding (LAB), Its Bonding Materials, and Their Applications
Kwang-Seong Choi,Jiho Joo,Ki-seok Jang,Gwang-Mun Choi,Ho-Gyeong Yun,Seok Hwan Moon,Yong-Sung Eom 대한용접·접합학회 2020 대한용접·접합학회지 Vol.38 No.2
Laser-Assisted Bonding (LAB) and its bonding materials help to find solutions to productivity, reduced warpage during fabricating modules, and fine-pitch bonding. Fluxing and hybrid underfill materials are developed to simplify the bonding process by eliminating the conventional underfill and cleaning process. We introduce two applications exhibiting the advantages of the LAB with two materials. Fluxing underfill was applied to bond a daisy chain chip with the minimum interconnection pitch of 30㎛ within 2 seconds. Hybrid underfill was used to fabricate a silicon back-contact solar module with reduced warpage, compared with the module fabricated through the conventional reflow process.
Assessments of different types of biodegradable pots strength and its effects on plant growth
( Fawad Khan ),( Gyeong Mun Choi ),( Na Eun Kim ),( Jayanta Kumar Basak ),( Mustafa Jaihuni ),( Anil Bhujel ),( Deog Hyun Lee ),( Hyeon Tae Kim ) 한국농업기계학회 2020 한국농업기계학회 학술발표논문집 Vol.25 No.2
This work is to increase the positive footprint of paper waste products by designing ‘‘eco-effective’’ solutions according to the regenerative design framework. Reutilization of five kinds of pots(waste of newspaper) is proposed here to close the loop at the end of the product life cycle. The aim was to design, manufacture and examine the strength of biodegradable pots were evaluated after the cultivation of paper plants. It is expected that by understanding the degradation rate of the investigated products and to support plant growth, it will be possible to optimize paper pots manufacturing to assure sufficient mechanical resistance and the desired rate of degradation. Five kinds (S0, S1, S1-1, S2, and S2-1) of biodegradable pots were made from old newspaper, and chilly plants were planted in the control greenhouse. Consequently, analysis of variance was performed, and a significant increase in holding moisture content was observed in S1 (73.75±1.92 %). The plant height (15.60±0.99 cm), stem diameter (1.60±0.20 cm), leaves length (3.51±0.0.20 cm) was higher in the S1 pots. However, the regression analysis values in the case of tension (R²=0.63) and compression (R²=0.99) with moisture content was shown by S0. It was concluded that S1 positively improve the growth of plants and hold optimum moisture content.
In Cheol Choi,Kyoung Tae Kim,In Chul Bang,Mun Gyeong Kwon,Jong Ha Lee,Bae Ik Lee,Sung Hwoan Cho 한국수산과학회 2010 Fisheries and Aquatic Sciences Vol.13 No.4
This study examined the effects of the dietary inclusion of various concentrations of red ginseng byproduct (RB) and a mixture containing red ginseng byproduct, garlic extract, yeast and filler (CR) on the growth, body composition, serum chemistry, and lysozyme activity of juvenile olive flounder (Paralichthys olivaceus). Juvenile fish (n=630) weighing 5.0-g were randomly distributed into 21 180-L flow-through tanks (30 fish/tank). Seven experimental diets were prepared in triplicate: a control diet without additive, and diets containing 0.5, 1 and 2% concentrations of RB (RB-0.5, RB-1, RB-2) and CR (CR-0.5, CR-1, CR-2) at the expense of wheat flour. After an 8-week feeding trial, serum chemistry and lysozyme activity of fish were measured. Mean weight gain was significantly higher in fish fed the control diet than in fish fed the RB and CR diets. The dietary inclusion of RB and CR reduced feed utilization. Mean serum glucose and triglyceride (TG) levels were higher in fish fed the control diet than in fish fed the other diets. Mean glutamate pyruvate transaminase (GPT) levels of fish fed the control and RB-2 diets were higher than those of fish fed the RB-0.5, RB-1, CR-1, and CR-2 diets. Mean lysozyme activity levels of fish fed the RB-0.5 and RB-1 diets were higher than those of fish fed the control and CR diets. The results of this study indicate that red ginseng byproduct may be utilized as an immunostimulant rather than as a growth promoter for juvenile olive flounder. Dietary inclusion of 0.5% red ginseng byproduct effectively improved serum glucose, GPT, TG, and lysozyme activity of the fish in this study.