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이순자,고대희,최운정 서강대학 지역발전연구소 1998 지역발전연구 : 서강전문대 Vol.4 No.2
This study was made to find out the relationship between the body mass index (BMI) and food habit among 68 male and 304 female college students. A self-report questionnaire was used about the height, weight and food habit. The summary of the results are as follows : The average age of the male subjects is 20.52, female subjects is 19.64. Almost all of the subjects were in the criteria of standard weight group and low weight group. However female subjects regard themselves more obese than their actual body shape and male subjects regard themselves more thinner than their actual constitution. Almost of the subjects were lack of exercise and the correlation between BMI, regular exercise and regular eating was significant. Food habit score was within the category of Fair or Poor group. All the male and female subjects have highest score in green-yellow vegetables intake and the lowest score in seaweeds intake. Therefore nutrition education for the desirable dietary life management of college students should be carried out with respect to the correct perception of ideal body shape and actual self body shape and the adequate weight control diet.
The Simple and Rough Screening Method of Phosphorus Deficient Tolerance Rice
Woon-Ha Hwang,Dae-Wook Kim,Jae-Heok Jeong,Han-Yong Jeong,Hyen-Seok Lee,Kyung-Jin Choi,Gun-Hwi Lee,In-Jung Lee,Sung-Hwan Oh 한국작물학회 2015 Korean journal of crop science Vol.60 No.4
Even though phosphorus (P) is essential element for plant growth and development, it is not enough for crop production in soil. To breed more P deficient tolerance rice, screening and selection in rice population is needed. We tried to develop more simple and rough screening method for breeding of P deficient tolerance rice. In P deficient condition, tiller number was dramatically decreased among yield components in rice. Though this result, we confirmed tiller number could be the best marker in screening of P deficient tolerance rice. 480 rice genetic resources were cultivated in rice bed tray filled with P deficient soil for four weeks and each dry weight was measured. Among them, the 55 kinds of genetic resource were selected then cultivated in paddy field with 3 fertilizer conditions. Plant dry weight and tiller number in ripening stage were shown significant difference according to P condition. Plant dry weight and tiller number in ripening stage was highly correlated especially in P deficient condition. Furthermore, the tiller number in ripening stage and plant dry weight in rough screening were shown high degree correlation. Though these results, we might expect measuring of plant dry weight after cultivation in rice bed tray filled with P deficient soil could be a simple and effective screening method in selection of P deficient tolerance rice.
( Dae-woon Jeong ),( Won-jun Jang ),( Jae-oh Shim ),( Yeol-lim Lee ),( Kyung-won Jeon ),( Hyun-suk Na ),( Hak-min Kim ),( Hyun-seog Roh ) 한국폐기물자원순환학회(구 한국폐기물학회) 2015 한국폐기물자원순환학회 3RINCs초록집 Vol.2015 No.-
The present study focuses on the performance of metal ferrite catalysts integrated with mesoporous alumina for the high temperature water-gas shift reaction of waste-derived synthesis gas. Ni, Co, and Cu were employed as doped metals for the target reaction in this study. Pure magnetite integrated alumina for HT-WGS was also tested as a reference catalyst. Among the prepared catalysts, copper ferrite integrated with mesoporous alumina showed the highest CO conversion (69%) and 100% selectivity to CO<sub>2</sub> at a very high GHSV of 42,000 h<sup>-1</sup>. The improved performance of the catalyst is correlated with its easier reducibility. In addition, honeycomb-like mesopores Al<sub>2</sub>O<sub>3</sub> also exhibited a beneficial effect on the rapid diffusion of reactants.
Inefficient Transmissibility of NS-Truncated H3N8 Equine Influenza Virus in Dogs
( Woon Sung Na ),( Man Ki Song ),( Min Joo Yeom ),( Nanuri Park ),( Bo Kyu Kang ),( Hyoung Joon Moon ),( Dae Gwin Jeong ),( Jeong Ki Kim ),( Dae Sub Song ) 한국미생물 · 생명공학회 2015 Journal of microbiology and biotechnology Vol.25 No.3
H3N8 equine influenza virus (EIV) causes respiratory diseases in the horse population, and it has been demonstrated that EIV can transmit into dogs owing to its availability on receptors of canine respiratory epithelial cells. Recently, we isolated H3N8 EIV from an EIV-vaccinated horse that showed symptoms of respiratory disease, and which has a partially truncated nonstructural gene (NS). However, it is not clear that the NS-truncated EIV has an ability to cross the host species barrier from horses to dogs as well. Here, we experimentally infected the NS-truncated H3N8 EIV into dogs, and monitored their clinical signs and viral load in respiratory organs to determine the virus``s transmissibility.
( Dae-woon Jeong ),( Won-bi Han ),( Jae-oh Shim ),( Won-jun Jang ),( Yeol-lim Lee ),( Hyun-seog Roh ),( Jae Hoi Gu ),( Yong Taek Lim ) 한국폐기물자원순환학회(구 한국폐기물학회) 2014 한국폐기물자원순환학회 심포지움 Vol.2014 No.1
A rapid one step direct synthesis of high temperature water gas shift (WGS) catalysts, magnetite incorporated with various promoters like Co, Ni, Cu, and Zn have been shown. An amino acid glycine was used as a complexing agent as well as a fuel for the auto-combustion process. The zwitterionic nature of glycine favors the easy incorporation of the promoter metal ions. In addition, reducing atmosphere created by glycine during its burning makes it possible to prepare magnetite directly. During the high temperature WGS, the activity follows the order Cu-FAG > Ni-FAG > Zn-FAG > Co-FAG. The optimization of Cu loading is also carried out. At 12.5 mole % of Cu loading the catalytic activity reached a CO conversion value of 87% at 400℃.
Optimization of Metal Substituted Spinel Ferrite Catalysts for Waste-Derived Synthesis Gas
( Dae-woon Jeong ),( Won-jun Jang ),( Jae-oh Shim ),( Hyun-seog Roh ) 한국폐기물자원순환학회(구 한국폐기물학회) 2016 한국폐기물자원순환학회 춘계학술발표논문집 Vol.2016 No.-
The purpose of this study was to prepare directly the magnetite of spinel ferrite catalysts using glycine assisted sol-gel combustion method and to compare the catalytic activity of Ni, Co, Mn, Mg, and Zn substituted spinel ferrite catalysts for the high temperature shift reaction (HTS). Selected metal ions (Ni, Co, Mn, Mg, and Zn) were introduced into iron oxide (spinel lattice) and the resulting materials screened for catalytic performance for the HTS reaction using waste-derived synthesis gas. The active phase of spinel ferrite catalysts was directly prepared by the glycine assisted sol-gel combustion method under a reducing atmosphere. Among the synthesized catalysts, NiFe2O4 catalyst exhibited the highest CO conversion (X<sub>CO</sub> = 81%) with long term stability even at a very high gas hourly space velocity of 40,057h<sup>-1</sup>. This result was mainly due to the inverse spinel structure and easier reducibility of NiFe<sub>2</sub>O<sub>4</sub> catalyst. The properties of metal ferrite spinel have been analyzed by Brunauer-Emmett-Teller (BET) method, X-raydiffraction (XRD), and temperature programmed reduction (TPR).
( Dae-woon Jeong ),( Won-jun Jang ),( Jae-oh Shim ),( Hyun-seog Roh ) 한국폐기물자원순환학회(구 한국폐기물학회) 2016 한국폐기물자원순환학회 추계학술발표논문집 Vol.2016 No.-
The purpose of this study was to investigate the effect of the preparation method on CeO<sub>2</sub>-promoted Cu/γ -Al<sub>2</sub>O<sub>3</sub> catalysts for the high temperature shift reaction using simulated waste-derived syngas (H<sub>2</sub> + CO). To investigate the effect of preparation method on the CeO<sub>2</sub>-promoted Cu/γ-Al<sub>2</sub>O<sub>3</sub> catalyst, we compared catalytic performance over Ce/Cu/γ-Al<sub>2</sub>O<sub>3</sub>, Ce-Cu/γ-Al<sub>2</sub>O<sub>3</sub>, Cu/Ce/γ-Al<sub>2</sub>O<sub>3</sub>, and Cu/γ-Al<sub>2</sub>O<sub>3</sub> catalysts, and tried to explain the differences in catalytic performance with various characterization methods. The physico-chemical properties of the CeO<sub>2</sub>-promoted catalysts were characterized using surface spectroscopies such as BET, XRD, TPR, XPS, Raman spectroscopy, photoluminescence spectroscopy, and N<sub>2</sub>O-chemisorption. The catalyst characterizations were correlated with activity results in the high temperature shift reaction.
Investigate of CeO2-promoted Cu/γ-Al2O3 Catalysts for Waste-Derived Syngas
Dae-Woon Jeong,Won-Jun Jang,Jae-Oh Shim,Hyun-Seog Roh 한국폐기물자원순환학회 2016 한국폐기물자원순환학회 학술대회 Vol.2016 No.11
The purpose of this study was to investigate the effect of the preparation method on CeO2-promoted Cu/γ -Al2O3 catalysts for the high temperature shift reaction using simulated waste-derived syngas (H2 + CO). To investigate the effect of preparation method on the CeO2-promoted Cu/γ-Al2O3 catalyst, we compared catalytic performance over Ce/Cu/γ-Al2O3, Ce-Cu/γ-Al2O3, Cu/Ce/γ-Al2O3, and Cu/γ-Al2O3 catalysts, and tried to explain the differences in catalytic performance with various characterization methods. The physico-chemical properties of the CeO2-promoted catalysts were characterized using surface spectroscopies such as BET, XRD, TPR, XPS, Raman spectroscopy, photoluminescence spectroscopy, and N2O-chemisorption. The catalyst characterizations were correlated with activity results in the high temperature shift reaction.