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Kim, Gun-Yeob,Jeong, Hyun-Cheol,Sonn, Yeon-Kyu,Kim, Sang Yoon,Lee, Jong-Sik,Kim, Pil Joo The Korean Society for Applied Biological Chemistr 2014 Applied Biological Chemistry (Appl Biol Chem) Vol.57 No.1
Under intensive vegetable production, increased productivity is primarily considered for selecting better water management and irrigation intensity in upland soils. Soil water potential at -30 kPa (field capacity) for red pepper (Capsicum annum L.) production, which is the optimum moisture potential for plants, is recommended for Korean upland soils to maximize fruit yield; however its impact on greenhouse gas (GHG) emissions have not yet been considered. In this study, red pepper was cultivated under two soil water potentials at -30 and -50 kPa by drip irrigation control in two different textured soils (clay and sandy loams). Nitrous oxide ($N_2O$) and methane ($CH_4$) emissions were simultaneously investigated during the cultivation period. Results indicated $N_2O$ was the main GHG and contributed to approximate 97-9% of the total global warming potential (GWP), though the extent of its contribution varied depending on soil texture and soil moisture control with emitted $CH_4$ being negligible throughout the investigation period. Between the treatments, soil moisture control at -50 kPa was effective in reducing the emissions of the two GHGs and also increased red pepper productivity in both clay loam and sandy loam soils. Comparing the gross GWP per unit pepper fruit yield between the treatments, maintaining soil water potential at -50 kPa by controlled irrigation led to a 50% reduction of GWP per unit pepper fruit yield. Therefore, drip irrigation control to lower soil water potential at -50 than -30 kPa is recommended to obtain high crop yield and reduce GWP per unit red pepper fruit yield for red pepper production in Korea.
Kim, Gun-Yeob,Lee, Jong-Sik,Jeong, Hyun-Cheol,Choi, Eun-Jung,Sonn, Yeon-Kyu,Kim, Pil-Joo 한국토양비료학회 2013 한국토양비료학회지 Vol.46 No.6
The effects of water-saving irrigation on the emissions of greenhouse gases and the prokaryotic communities in rice paddy soils were investigated through a field experiment. In the Water-Saving (WS) irrigation, the water layer was kept at 2~3 cm while it was kept at 6 cm in the Continuousiy Flooding (CF) irrigation. A plot was treated with Intermittently Drainage (ID) that is drained as fine cracks on the floor were seen after transplanting. GHGs emission amounts from WS plots were reduced by 78.1% compared to that from CF plot and by 70.7% compared to that from ID plot, meaning that WS could help contribute to mitigation of the greenhouse gas accumulation in the atmosphere.
Establishment of a bone-specific col10a1:GFP transgenic zebrafish
Kim, Yong-Il,Lee, Suman,Jung, Seung-Hyun,Kim, Hyun-Taek,Choi, Jung-Hwa,Lee, Mi-Sun,You, Kwan-Hee,Yeo, Sang-Yeob,Yoo, Kyeong-Won,Kwak, SeongAe,Lee, Joon No,Park, Raekil,Choe, Seong-Kyu,Kim, Cheol-Hee Springer-Verlag 2013 Molecules and cells Vol.36 No.2
Kim, Na-Hyung,Kim, Kyu-Yeob,Kim, Jeong-Ah,Kim, Young-Ho,Kang, In-Cheol,Kim, Hyung-Min,Jeong, Hyun-Ja Kyung Hee Oriental Medicine Research Center 2010 Oriental pharmacy and experimental medicine Vol.10 No.3
Acanthopanax Koreanum stem (AK) has been used in Korea as a tonic and sedative as well as a drug with ginseng like activities. The purpose of our present study was to investigate the effects of AK extract (AKE) and Eleutheroside E, major component of AKE on an exacerbated immune function through utilization of protein-energy malnutrition (PEM) diet by using forced swimming test (FST). The immobility time were significantly decreased in the AKE or Eleutheroside E-administrated group compared with the control group on the FST (P < 0.05). The level of blood parameters were not changed significantly. PEM-induced weight loss of mice was reduced by oral administration of 500 mg/kg AKE. AKE oral administration improved the nutritional status such as the food efficiency ratio and the adrenal gland weight. AKE treatment significantly increased the production of interferon (IFN)-$\gamma$ compared with unstimulated splenocytes but not interleukin (IL)-4. Eleutheroside E also significantly increased the IFN-$\gamma$ production but not IL-2 and IL-4 in T cell line, MOLT-4 cells. These results suggest that AKE and Eleutheroside E may influence to immune-enhancing through increasing the physical endurance capacity and immune cell activation.
Maintenance Model of Agricultural Facilities Using CBR
Kim, Jae-Yeob,Lee, Yong-Kyu,Kim, Gwang-Hee The Korean Institute of Building Construction 2012 한국건축시공학회지 Vol.12 No.2
As we move from the industrial age to the information age, domestic industries are changing rapidly, and rural society is also laying the foundation to make use of information technologies. Through this kind of modernization, the size of agricultural facilities has been increasing on a significant scale. But, in reality, there are many difficulties in the maintenance of agricultural facilities in proportion to their growing number. Accordingly, this research aims to solve the fundamental problems that occur with agricultural facilities in the maintenance stage. In addition, it aims to provide information on how to maintain and manage facilities for farmers. The presentation of the maintenance information was conducted using a case-based reasoning method that solves current problems based on past cases. The tool of case-based reasoning was applied to define the establishment of the base for cases, characteristic variables and maintenance measures. The effectiveness of a CBR model was examined through the case study. The use of the case-based reasoning method is judged to be effective as a tool to support the decisions of farmers regarding maintenance. When the maintenance measures derived through the CBR model are offered to farmers, the fundamental problems of maintaining agricultural facilities will be solved, and the damage to such facilities minimized.
Effects of Acanthopanax divaricatus var. albeofructus in mice submitted to protein restriction
Kyu-Yeob Kim,박찬원,김형민,강인철,정현자 경희대학교 융합한의과학연구소 2011 Oriental Pharmacy and Experimental Medicine Vol.11 No.1
The present study was to investigate the effects of water extracts of Acanthopanax divaricatus var. albeofructus stem extract (ADE) on an exacerbated immune function through utilization of a protein-energy malnutrition (PEM) diet. ADE has been used in Korea as a tonic and sedative agents as well as a drug with ginseng like activities. However, there is no pronouncing about the immune system on the PEM feeding mice. The immobility time were significantly decreased in the ADE-administrated group as compared to the control group on the forced swimming test (P<0.05). The level of aspartate aminotransferase and lactate dehydrogenase in blood was significantly reduced in the ADE-administrated group (P<0.05). ADE also significantly decreased production of interferon-γ and interleukin (IL)-4 but not IL-2 in splenocytes (P<0.05). We used a manually antibody microarray to carry out the signaling protein microarray analysis. Unfortunately,we did not find change of protein expression. These results suggest that ADE have the anti-fatigue effect and the immune regulation effect.
Kim, Kyu-Yeob,Yang, Won-Jun,Shin, Tae-Kyun,Jeong, Hyun-Ja,Kim, Hyung-Min Institute for Advanced Research in Asian Science a 2012 The American journal of Chinese medicine Vol.40 No.4
<P>In acupuncture, adaptation to energy flows in body cycles is the key to health and therapy. From the evolution of our thinking about acupuncture, we developed the Life-Energy (Qi) oriental needle (Qi needle). It contains a rotating electromagnetic wave and has a strong affinity for the meridians. We report for the first time on the effect of acupuncture by using a Qi needle (Qi acupuncture) on rat experimental autoimmune encephalomyelitis, a model of human demyelinating multiple sclerosis. Both Qi acupuncture (QA) and general acupuncture (GA) were used on the limbs, at the shaoshang (LU11) and zhongchong (PC9) acupoints, of rats from one day post-immunization (dpi) to 12 dpi. The therapy in the QA groups significantly blocked the onset of EAE paralysis (3/13, 77%, p < 0.05) while all rats in the control EAE groups (12/15) and GA groups (11/13) showed EAE paralysis. In addition, the duration of paralysis was shortened in QA groups (1.5 0.5 days) compared with those of the vehicle (5.5 0.2 days) and GA groups (3.6 1.1 days). The numbers of inflammatory cells and CD4(+) T cells in the QA treated EAE group were significantly reduced compared with those of the EAE control and EAE with GA (p < 0.05). Collectively, the present findings suggest that QA ameliorates the paralysis in rats in an EAE model. The precise mechanism of the amelioration and human studies, however, needs further study.</P>
Kim, Na-Hyung,Kim, Kyu-Yeob,Jeong, Hyun-Ja,Kim, Hyung-Min,Hong, Seung-Heon,Um, Jae-Young John Wiley Sons, Ltd. 2010 Journal of the Science of Food and Agriculture Vol.90 No.9
<P>BACKGROUND: Chlorella vulgaris is a unicellular and microscopic algae that is currently used in a variety of forms of tablets, capsules and liquid as a biological response modifier. The aim of this study was to investigate the effects of hydrolyzed Chlorella vulgaris by malted barley for its potential reduction of the immobility time in ICR mice and on the cytokine regulation in human T cell line, Molt-4.</P><P>RESULTS: After a forced swimming test, the changes in aspects of blood biochemical parameters due to the administration of hydrolyzed Chlorella vulgaris by malted barley were examined. The effect of hydrolyzed Chlorella vulgaris by the malted barley-treated group for 14 days on the immobility time was significantly reduced in comparison with that of the control group (P < 0.01). The plasma level of blood urea nitrogen was significantly decreased in hydrolyzed Chlorella vulgaris by malted barley-treated group compared with the control group (P < 0.05). In addition, hydrolyzed Chlorella vulgaris by malted barley increased interferon-γ and interlukin-2 levels in Molt-4 cells.</P><P>CONCLUSION: These results indicate that hydrolyzed Chlorella vulgaris by malted barley is useful for immune function improvements, enhanced physical stamina, and as a candidate for an anti-fatigue or antidepressant agent. Copyright © 2010 Society of Chemical Industry</P>
Kim, Kyu-Yeob,Park, Chan-Won,Kim, Hyung-Min,Kang, In-Cheol,Jeong, Hyun-Ja 경희한의학연구센터 2011 Oriental Pharmacy and Experimental Medicine Vol.11 No.1
The present study was to investigate the effects of water extracts of $Acanthopanax$ $divaricatus$ $var.$ $albeofructus$ stem extract (ADE) on an exacerbated immune function through utilization of a protein-energy malnutrition (PEM) diet. ADE has been used in Korea as a tonic and sedative agents as well as a drug with ginseng like activities. However, there is no pronouncing about the immune system on the PEM feeding mice. The immobility time were significantly decreased in the ADE-administrated group as compared to the control group on the forced swimming test ($P$ <0.05). The level of aspartate aminotransferase and lactate dehydrogenase in blood was significantly reduced in the ADE-administrated group ($P$ <0.05). ADE also significantly decreased production of interferon- ${\gamma}$ and interleukin (IL)-4 but not IL-2 in splenocytes ($P$ <0.05). We used a manually antibody microarray to carry out the signaling protein microarray analysis. Unfortunately, we did not find change of protein expression. These results suggest that ADE have the anti-fatigue effect and the immune regulation effect.