http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Culture supernatant proteins of Brucella canis represented potential antigenicity
Jin Ju Lee(Jin Ju Lee),So-Ra Sung(So-Ra Sung),Eun Ji Yum(Eun Ji Yum),Sung Dae Yang(Sung Dae Yang),Min Hoe Lee(Min Hoe Lee),Bang-Hun Hyen(Bang-Hun Hyen),Moon Her(Moon Her),Hee Soo Lee(Hee Soo Lee) 한국예방수의학회 2018 한국예방수의학회 학술대회자료집 Vol.2018 No.-
Sang Hun Lee(이상훈),Ki Yuol Jung(정기열),Hyen Chung Chun(전현정),Dong Hyok Gong(공동혁) 한국토양비료학회 2021 한국토양비료학회 학술발표회 초록집 Vol.2021 No.11
Subsurface drip irrigation is highly efficient irrigation system to save water compared to surface irrigation methods. Although the use of soil sensors helps farmers with irrigation scheduling by providing information about when and how much to irrigate, little information is available on soil moisture pattern by subsurface drip irrigation using different soil sensors. Therefore, irrigation scheduling using different soil sensors was evaluated to compare soil moisture wetting pattern at coarse textured soil. Subsurface drip irrigation system was installed at 40cm depth from soil surface with the dripline of 1.6L/hr effluent rate. Study soil has 6% clay content and classified with sandy loam, which was evaluated plant available water content of 10.8%. Subsurface drip irrigation were automatically initiated based on soil moisture sensor and tensiometer. In this study soil water content was fluctuated with irrigation and precipitation event. In the treatment of irrigation by soil moisture sensor, soil water content was well maintained at desired soil water content. However, the variability of soil water content by tensiometer was relatively greater compared to soil water sensor. The results of this study indicate that the irrigation rate and coverage of the irrigation system should be determined on irrigated soil and the amount of water to be applied or target point must be determined based on the irrigation system and the soil water characteristics.
Lee, Hee Joo,Park, Sung Jun,Sin, Hyen Je,Na, Yu Jeong,Kim, Cheal The Royal Society of Chemistry 2015 NEW JOURNAL OF CHEMISTRY Vol.39 No.5
<P>A new colorimetric chemosensor with an electron-withdrawing group (-NO2) 1 for the detection of CN- and F- has been simply developed. Receptor 1 showed selectively colorimetric responses to CN- in aqueous solution and F- in acetonitrile, respectively. An obvious color change of 1 from yellow to colorless was observed for CN- through a nucleophilic addition mechanism, while F- was detected through a deprotonating mechanism with a distinct color change from pale yellow to orange. The binding modes of receptor 1 with two analytes (CN- and F-) were proposed to be 1 : 1, based on the Job plot, H-1 NMR titration, and ESI-mass spectrometry analysis.</P>
Lee, Kuem-Ju,Kim, Dong-Hoon,Choi, Song-Hyen,Shin, You-Chan,Park, Sang-Ha,Moon, Bo-Hyun,Kang, Seung-Woo,Cho, Eu-Jin,Choi, Sang-Hyun,Chun, Boe-Gwun,Lee, Min-Soo,Shin, Kyung-Ho The Korean Society of Pharmacology 2007 The Korean Journal of Physiology & Pharmacology Vol.11 No.4
Recent studies suggest that alterations in glutamate receptor subunit levels in mesocorticolimbic dopamine areas could account for neural adaptations in response to psychostimulant drugs. Although many drugs of abuse induce changes in ionotropic glutamate receptor subunits in mesocorticolimbic dopamine areas, the changes of ionotropic glutamate receptor subunits by repeated nicotine treatment in these areas are not known. To answer this question, we injected male Sprague-Dawley rats twice daily with nicotine (0.4 mg/kg) or saline (1 ml/kg) for 10 days. The immunoreactivity of NR1, GluR1, and GluR2 glutamate receptor subunits was examined $16{\sim}18 h$ after the last injection of saline or nicotine. Repeated nicotine treatment significantly increased NR1 levels in the ventral tegmental area (VTA). In addition, repeated nicotine treatment showed a tendency towards an increase in GluR1 levels in the VTA as well as in striatum. However, there was no significant change in glutamate receptor subunits in other areas including nucleus accumbens (NAc). These results demonstrate that repeated nicotine treatment increases NR1 levels in VTA similarly to other drugs of abuse, suggesting that elevated glutamate receptor subunits in the VTA, but not NAc may be involved in the excitation of mesocorticolimbic dopamine neurons by nicotine.
Lee, Kyung-Woo,Lillehoj, Hyun S.,Jang, Seung-I.,Lee, Sung-Hyen The Korean Society of Poultry Science 2012 韓國家禽學會誌 Vol.39 No.1
Coccidiosis control programs such as vaccines or in-feed anticoccidials are commonly practiced in the poultry industry to improve growth performance and health of commercial broiler chickens. In this study, we assessed the effects of various coccidiosis control programs (e.g., in ovo vaccination, synthetic chemicals, and antibiotic ionophores) on immune status of broiler chickens vaccinated against infectious bronchitis virus and Newcastle disease virus (ND) and raised on an Eimeria-contaminated used litter. In general, the levels of ${\alpha}$-1-acid glycoprotein, an acute phase protein, were altered by the treatments when measured at 34 days of age. Splenocyte subpopulations and serum antibody titers against ND were altered by various coccidiosis control programs. In-ovo-vaccinated chickens exhibited highest mitogenic response when their spleen cells were stimulated with concanavalin A (Con A) at 7 days of age. It is clear from this study that the type of coccidiosis control program influenced various aspects of innate and adaptive immune parameters of broiler chickens. Further studies will be necessary to delineate the underlying relationship between the type of coccidiosis control program and host immune system and to understand the role of other external environmental factors such as gut microbiota on host-pathogen interaction in various disease control programs.
( Sang-yeop Lee ),( Won-seok Yang ),( Se-won Park ),( Gun-ho Han ),( Yong-chil Seo ),( Woo-hyen Kim ),( Young-sik Yoon ),( Won-sik Lee ) 한국폐기물자원순환학회(구 한국폐기물학회) 2019 한국폐기물자원순환학회 심포지움 Vol.2019 No.1
Solid refuse fuel (SRF) manufacturing facilities, residues are buried at a rate of 30~45% of incoming amount or some are disposed of by incineration facilities. It is known that landfill can increase the pollution load and it takes about 20% of total facility operation cost due to landfill disposal cost. In the study residue waste from SRF manufacturing plant was attempted to combust, the bottom ash generated from incineration tests was utilized aggregates to fabricate bricks to assess the applicability. The variation in bottom ash properties influences the characteristics of bricks and also it could be hazardous for environment. So, before making bricks from generated bottom ash, basic characteristic of bottom ash such as ignition loss and heavy metal leaching test must be analyzed. These bricks were manufactured by substitution of stone powder and sand. These can be used as an interlocking block for the sidewalk and open space. Finally we analyzed the basic characteristics of the bottom ash and analyzed the water absorption, bending strength, compressive strength, and dimensions of the mixed bricks. Following these results, as comparing with standard interlocking block, recycling brick satisfied with the less than 10% abosrption rate and more than 5Mpa flexural strenghth. we could assess the applicability of these bricks manufactured.
Lee, Jong-Won,Min, Hye-Young,Han, Ah-Reum,Chung, Hwa-Jin,Park, Eun-Jung,Park, Hyen Joo,Hong, Ji-Young,Seo, Eun-Kyoung,Lee, Sang Kook Pharmaceutical Society of Japan 2007 Biological & pharmaceutical bulletin Vol.30 No.8
<P>In our previous study, a novel phenylbutenoid dimer (±)-<I>trans</I>-3-(3,4-dimethoxyphenyl)-4-[(<I>E</I>)-3,4-dimethoxystyryl]cyclohex-1-ene (PSC), isolated from <I>Zingiber cassumunar</I> R<SMALL>OXB</SMALL>. (Zingiberaceae), inhibited proliferation of various human cancer cells with the IC<SUB>50</SUB> values ranging 10 to 30 μ<SMALL>M</SMALL>. Prompted by these anti-proliferative effects, we performed additional studies in A549 human lung cancer cells in order to investigate the mechanism of action. PSC arrested cell cycle progression at the G0/G1 phase in a concentration- and time-dependent manner. PSC dose-dependently induced cyclin-dependent kinase (CDK) inhibitor p21 expression, whereas the expression of cyclin D1, cyclin A, CDK4, CDK2, and proliferating cell nuclear antigen (PCNA) were decreased by treatment with PSC. These results suggest that one of the anti-proliferative mechanisms of PSC is to suppress cell cycle progression by increasing p21 expression and down-regulating cyclins and CDKs. This study characterizes additional biological activity of this novel phenylbutenoid dimer and expands its therapeutic potential for cancer as a chemotherapeutic agent derived from natural products.</P>