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Far Ultraviolet Observations of the Spica Nebula and the Interaction Zone
최연주,박재우,민경욱,선광일,조영수,Choi, Yeon-Ju,Park, Jae-Woo,Lim, Tae-Ho,Min, Kyoung-Wook,Seon, Kwang-Il,Jo, Young-Soo 한국천문학회 2012 天文學會報 Vol.37 No.2
We report the results of our analysis of far ultraviolet (FUV) observations made for the broad region around the ${\alpha}$ Vir (Spica) including the interaction zone of the Loop I and the Local Bubble. We employed the datasets of the GALEX and the FIMS, which made observations at similar FUV wavelengths. First, we noted that the GALEX image was enhanced in the southern region where the interaction zone exists. We attribute this enhanced FUV emission to dust scattering of the stellar photons, mostly from the background field stars with small contributions from the central star Spica. While the region is optically thin in general, the FUV intensity did not correlate well with the dust extinction level, indicating that the local radiation field has significant fluctuations. On the other hand, the GALEX FUV intensity well with the $H{\alpha}$ intensity as well as the dust extinction level in the northern part. In fact, the neutral hydrogen column density correlated very well with the dust extinction level throughout the whole region in consideration. The relationship between the neutral hydrogen column density and the color excess was estimated to be ${\sim}7{\times}10^{21}atoms\;cm^{-2}$, which is a little higher than the previous observations made for a diffuse interstellar medium. The spectral analyses of the FIMS observations showed the enhanced C IV emission throughout the whole region, indicating that the C IV emission arises by the interaction of the hot gases with the shell boundaries. A simple model showed that a large portion of the C IV emission comes from the Loop I side of the interaction zone, compared to the Local Bubble side. The FIMS spectrum also showed indications of the molecular hydrogen fluorescence lines for the interaction zone.
김학주 ( Hak Ju Kim ),최일환 ( Il Hwan Choi ),정철 ( Chul Jung ),한가진 ( Ga Jin Han ),고석재 ( Seok Jae Ko ),김슬기 ( Seul Ki Kim ),박재우 ( Jae Woo Park ) 대한면역약침학회 2012 대한면역약침학회지 Vol.1 No.1
Objectives: The aim of this study is to investigate the contents and physioactivities of HN Yakchim. Methods: In this study, we analyzed the amount of total protein, total glucose, crude fat and crude ash of HN Yakchim. The anti-oxidative effect of HN Yakchim was analyzed by investigating 1,1-diphenyl-2-picryl hydrazyl fre radical scavenging activity. To investigate the anti-inflammatory effect of HN Yakchim, cyclooxygenase-2, tumor necrosis factor-α and interleukin-6 were measured. Results: HN Yakchim consists of 0.05% of protein, 0.27% of total glucose, 97.71% of crude fat and 0.49% of crude ash. HN Yakchim showed relatively higher anti-oxidative effect compared to butyl hydroxyanisole. HN Yakchim also showed anti-inflammatory effect by inhibiting cyclooxygenase-2, tumor necrosis factor-α and interleukin-6. Conclusions: HN Yakchim might have anti-oxidant and anti-inflammatory effect. Further investigation including exact mechanisms should be needed.
김학주 ( Hak Ju Kim ),최일환 ( Il Hwan Choi ),정철 ( Chul Jung ),한가진 ( Ga-jin Han ),고석재 ( Seok Jae Ko ),김슬기 ( Seul Ki Kim ),박재우 ( Jae Woo Park ) 대한면역약침학회 2012 대한면역약침학회지 Vol.1 No.1
Objectives: The aim of this study is to investigate the contents and physioactivities of I Yakchim. Methods: In this study, we analyzed the amount of total protein, total glucose, crude fat and crude ash of I Yakchim. The anti-oxidative effect of I Yakchim was analyzed by investigating 1,1-diphenyl-2-picryl hydrazyl free radical scavenging activity. To investigate the anti-inflammatory effect of I Yakchim, cyclooxygenase-2, tumor necrosis factor-α and interleukin-6 were measured. Results: I Yakchim consists of 0.06% of protein, 0.31% of total glucose, 97.65% of crude fat and 0.61% of crude ash. I Yakchim showed higher anti-oxidative effect compared to butyl hydroxyanisole. I Yakchim also showed anti-inflammatory effect by inhibiting cyclooxygenase-2, tumor necrosis factor-α and interleukin-6. Conclusions: I Yakchim might have anti-oxidant and anti-inflammatory effect. Further investigation including exact mechanisms should be needed.
나노영가철과 Geobacter lovleyi를 이용한 TCE 탈염소에 관한 동역학적 연구
김영주,안상우,장준원,여인환,김한석,박재우,Kim, Young-Ju,An, Sang-Woo,Jang, Jun-Won,Yeo, In-Hwan,Kim, Han-Suk,Park, Jae-Woo 한국지하수토양환경학회 2012 지하수토양환경 Vol.17 No.1
Nanoscale zero-valent iron (nZVI) has recently received much attention for remediation of soil and groundwater contaminated with trichloroethylene (TCE). But there have been many debates on the toxic or inhibitory effects of nZVI on the environment. The objective of this study was to investigate the effects of nZVI on the activity of Geobacter lovleyi and to determine the potent effect of combination of abiotic and biotic treatment of TCE dechlorination. TCE degradation efficiencies of Geobacter lovleyi along with nZVI were more increased than those when nZVI was solely used. The amount of total microbial protein was increased in the presence of nZVI and hydrogen evolved from nZVI was consumed as electron donor by Geobacter lovleyi. In addition, dechlorination of TCE to cis-DCE by Geobacter lovleyi along with nZVI in respiking of exogenous of TCE shows that the reactivity of Geobacter lovleyi was also maintained. These results suggest that the application of Geobacter lovleyi along with nZVI for the dehalorination is beneficial for the enhancement of TCE degradation rate and reactivity of Geobacter lovleyi.
신지원 ( Ji Won Shin ),이금주 ( Geum Ju Lee ),박재우 ( Joe Woo Park ) 대한영양사협회 2012 대한영양사협회 학술지 Vol.18 No.4
As a disease that reduces quality of life, functional dyspepsia (FD) is associated with foods that may worsen its symptoms or cause it. The purpose of this study was to examine the nutritional status and dietary behaviors of FD patients. We investigated food intake, food intake frequency, and dietary habits of 45 FD subjects according to the Rome III Diagnosis Criteria. Average age and body mass index (BMI) were 47.7 years and 22.6 kg/m2 (males: 23.4 kg/m2, females: 22.1 kg/m2), respectively. Average energy intake was 77% of Korean Dietary Reference Intake (KDRI), and it was less than that of the Korea National Health and Nutrition Examination Surveys (KNHANES). Other nutrient intake levels were similar to the KNHANES. Energy intake proportion of carbohydrates:protein:fat was 56:18:26, and the ratio of fat intake was higher than that of the KNHANES. Beans, laver, tomato, and yogurt were consumed very frequently. In the results of meal regularity, dietary behaviors and composition of diet were relatively good. It is likely that the patient controlled their diet by eating cautiously and by reducing alcohol drinking and smoking. Our results indicate that FD patients` nutritional status by consumption of nutrients was at a level of normal healthy people and that dietary habits were better than normal adults. However, their fat intake levels were somewhat higher than normal people. Therefore, further research is required to identify the relationship between dietary intakes and FD.