군산시의 평생교육 활성화 방안

유구식 ( Gu Sik Yoo ) 창조교육학회 2011 창조교육논총 Vol.13 No.-

According to the flow of communication based on knowledge, politics, social, economic, and culture is changing of a pace. During democracy took root through the age of authority, lifelong education of Gun- an dtizen, school, family, social, and work place is searching to study th method of vitality. Policy of lifelong Educator was analyzed. Also, perception of busines for Lifelong Educator was analyzed. This analysis is for Method of vitality related Live long Educator in Gun-san by question of studying conduct d b 324 people in Gu-san. And to replace lifelong education or Gun-san` citizen in school, horn, work place ctc, 324 employed people in relation to tub of education and general branch were conducted through the question. They arc as followings F`irst, Gun-san city Welong education and policy is needed govern officer fulfilled of consciou ness and specialty. Second, For vitality of lifelong education, educational institution is needed to extension and to develop educator of this area and to vary program of education.

국내 상급종합병원과 종합병원 간호사의 정맥주입간호실무지침의 확산정도

은영(Young Eun),구미옥(Mee Ok Gu),조용애(Young Ae Cho),정재심(Jae Shim Jeong),권정순(Jeong Soon Kwon),유정숙(Cheong Suk Yoo5),정영선(Young Sun Jeong),정인숙(In Sook Jung),김경숙(Kyeong Sug Kim),이선희(Seon Heui Lee),서현주(Hyun Ju S 한국근거기반간호학회 2015 근거와 간호 Vol.3 No.1

Purpose: This study was conducted to investigate the extent of diffusion of Intravenous infusion nursing practice guideline among nurses in advanced general hospitals and general hospitals in Korea. Methods: The subjects were 234 nurses who practice the intravenous infusion in 24 advanced general hospitals and general hospitals. Data were collected between October 5 and November 2, 2015 by mail (return rates: 97.5 %). Data were analyzed using descriptive statistics, t-test, and ANOVA with SPSS/ WIN 21. Results: The average guideline diffusion score and levels of diffusion was 3.39±0.58 (level of “use sometimes”). 44 recommendations (46%) were in level of “use always” and 50 recommendations (53%) were in “use sometimes”. Extent of diffusion were significantly different according to present status (F=2.81, p=.040) and education (F=4.35, p=.014). The facilitating factors to use the guideline were education by department of nursing service, convenient composition of guideline and barrier factors were “no time to use the guideline”, “don’t know the guideline” and “there is no guideline at ward”. Conclusion: Extent of diffusion of Intravenous infusion nursing practice guideline among nurses was moderate level. The strategies for promoting the implementation of guideline in clinical practice is needed. Further study of outcome evaluation of guideline implementation will be needed.

주정중독 환자와 정상음주자에 대한 감정상태와 자기 지각, 가정환경, 사회적 지지에 관한 비교 연구

이정식,한광수,이유상,한일우,신용구 용인정신의학연구소 1997 용인정신의학보 Vol.4 No.1

Isolation and Characterization of Dextrans Produced by Leuconostoc sp. strain JYY4 from Fermented Kimchi

Ji-Joong Gu,Yoo-Jin Ha,Sun-Kyun Yoo 한국유화학회 2015 한국응용과학기술학회지 Vol.32 No.4

Dextran is a generic term for a bacterial exopolysaccharide synthesized from sucrose and composed of chains of D-glucose units connected by α-1,6-linkages by using dextransucrases. Dextran could be used as vicosifying, stabilizing, emulsifying, gelling, bulking, dietary fiber, prebiotics, and water holding agents. We isolated new strain capable of producing dextran from Korean traditional kimchi and identified as Leuconostoc sp. strain JYY4. Batch fermentation was conducted in bioreactor with a working volume of 3 L. The media was MMY and 15% (w/v) sucrose. Mineral medium consisted of 3.0 g KH2PO4, 0.01 g FeSO4, H2O, 0.01 g MnSO4, 4H2O, 0.2 g MgSO4 7H2O, 0.01 g NaCl, 0.05 g CaCl2 per 1 liter deionized water. The pH of media was initially adjusted to 6.0. The inoculation rate was 1.0% (v/v) of the working volume. Temperature was maintained at 28oC. The agitation rate was 100 rpm. The production pattern of dextran was associated with the cell growth. After 24 hr dextran reached its highest concentration of 59.4 g/L. The sucrose was consumed completely after 40 hr. Growth reached stationery phase when sucrose became limiting, regardless of the presence of fructose or mannitol. When the specific growth rate was 0.54 hr-1, utilization averaged 5.8 g/L-hr. The yield and productivity of dextran were 80% and 2.0 g/L-hr, respectively. Dextrans produced by were separated to two different size by an alcohol fraction method. The size of high molecular weight dextran (45% alcohol, v/v), less soluble dextran, was between MW 500,000 and 2,000,000. Soluble dextran (55% alcohol, v/v) was between 70,000 and 150,000. The molecular weight average of total dextran (70% alcohol, v/v) was between 150,000 to 500,000. The enzymatic hydrolyzates of total dextran of ATCC 13146 showed branched dextrans by Penicillium dextranase contained of glucose, isomaltose, isomaltotriose, and isomaltooligosaccharides greater than DP4 (degree of polymerization) that had branch points. Compounds greater than DP4 were branched isomaltooligosaacharides. Hydrolysates by the Lipomyces dextranase produced the same composition of oligosaccharides as those by Penicillin dextranase.

Defect control for large-scale thin-film composite membrane and its bench-scale demonstration

Yoo, Myung Jin,Lee, Jun Hyeok,Yoo, Seung Yeon,Oh, Jee Yeon,Roh, Jong Min,Grasso, Giuseppe,Lee, Jung Hyun,Lee, Dahun,Oh, Woong Jin,Yeo, Jeong-gu,Cho, Young Hoon,Park, Ho Bum Elsevier 2018 Journal of membrane science Vol.566 No.-

<P><B>Abstract</B></P> <P>Since the inception of membrane-based CO<SUB>2</SUB> separation technology in the late 1970s, a large number of material studies have been performed to improve the material properties of membrane materials and tremendous progress has been made with regard to CO<SUB>2</SUB> separation to increase the trade-off between permeability and selectivity, known as the “Robeson upper bound.” In membrane science, material properties and membrane properties are related but completely different, especially in thin-film composite (TFC) membranes. Compared to the large number of material studies, few studies have been performed on membrane properties, and very few membranes have been successfully commercialized because an extremely thin selective layer is required in CO<SUB>2</SUB>/N<SUB>2</SUB> separation membranes for high CO<SUB>2</SUB> permeance; however, defects are easily generated, deteriorating gas transport properties on a large-scale. In this study, we theoretically analyzed the effect of defects on the gas transport properties of a TFC membrane and introduced a method to control defects during the preparation of large-scale membranes. This work will provide a facile and practical approach to preparing TFC membranes and will be helpful toward extending material studies to real membrane demonstrations.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Requirements for a protective layer were proposed by theoretical calculations. </LI> <LI> Effectiveness of using a protective layer was proved by experiments. </LI> <LI> Protective layer coated membrane exhibited high CO<SUB>2</SUB> permeance & CO<SUB>2</SUB>/N<SUB>2</SUB> selectivity. </LI> <LI> Plate-and-frame membrane module was successfully prepared. </LI> <LI> Membrane-based CO<SUB>2</SUB>/N<SUB>2</SUB> separation system was demonstrated in bench-scale. </LI> </UL> </P>

Development of 2D implicit particle simulation code for ohmic breakdown physics in a tokamak

Yoo, Min-Gu,Lee, Jeongwon,Kim, Young-Gi,Na, Yong-Su Elsevier 2017 Computer physics communications Vol.221 No.-

<P><B>Abstract</B></P> <P>A physical mechanism of an ohmic breakdown in a tokamak has not been clearly understood due to its complexity in physics and geometry especially for a role of space charge in the plasma. We have developed a 2D implicit particle simulation code BREAK, to study the ohmic breakdown physics under a realistic complicated situation considering the space charge and kinetic effects consistently. The ohmic breakdown phenomena span a broad range of spatio-temporal scales, from picoseconds order of the electron gyromotion to milliseconds order of the plasma transport. It is impossible to employ a typical explicit particle simulation method to see the slow plasma transport phenomena of our interest, because a time step size is restricted to be smaller than a period of the electron gyromotion in the explicit scheme. Hence, we adopt several physical and numerical models, such as a toroidally symmetric model and a direct-implicit method, to relax or remove the spatio-temporal restrictions. In addition, coalescence strategies are introduced to control the number of numerical super particles within acceptable ranges to handle the exponentially growing plasma density during the ohmic breakdown. The performance of BREAK is verified with several test cases so that BREAK is expected to be applicable to investigate the ohmic breakdown physics in the tokamak by considering 2-dimensional plasma physics in the RZ plane, self-consistently.</P>

Electrochemical Analysis of Autodisplayed Adrenodoxin (ADX) on the Outer Membrane of E. coli

Gu YOO,Ji-hong BONG,Min PARK,Min-jung KANG,Joachim JOSE,Jae-chul PYUN 한국생물공학회 2015 한국생물공학회 학술대회 Vol.2015 No.4

Comment on ‘Numerical modeling of tokamak breakdown phase driven by pure Ohmic heating under ideal conditions’

Yoo, Min-Gu,Na, Yong-Su International Atomic Energy Agency 2019 Nuclear fusion Vol.59 No.8

<P>In this comment, we point out possible critical numerical flaws of recent particle simulation studies (Jiang <I>et al</I> 2016 <I>Nucl. Fusion</I> <B>56</B> 126017; Peng <I>et al</I> 2018 <I>Nucl. Fusion</I> <B>58</B> 026007) on the electrical gas breakdown in a simple one-dimensional periodic slab geometry. We show that their observations on the effects of the ambipolar electric fields during the breakdown, such as the sudden reversal of the ion flow direction, could not be real physical phenomena but result from numerical artifacts violating the momentum conservation law. We show that an incomplete implementation of the direct-implicit scheme can cause the artificial electric fields and plasma transports resulting in fallacies in simulation results. We also discuss that their simple plasma model without considering poloidal magnetic fields seriously mislead the physical mechanism of the electrical gas breakdown because it cannot reflect important dominant plasma dynamics in the poloidal plane (Yoo <I>et al</I> 2018 <I>Nat. Commun</I>. <B>9</B> 3523).</P>

Magnetic bead based immunoassay by using E.coli cells with autodisplayed Z-domains

Gu YOO,Ju-Kyung LEE,Min PARK,Jae-Chul PYUN 한국생물공학회 2012 한국생물공학회 학술대회 Vol.2012 No.4

Isolation and Characterization of Dextrans Produced by Leuconostoc sp. strain JYY4 from Fermented Kimchi

Gu, Ji-Joong,Ha, Yoo-Jin,Yoo, Sun-Kyun The Korean Society of Applied Science and Technolo 2015 한국응용과학기술학회지 Vol.32 No.4

Dextran is a generic term for a bacterial exopolysaccharide synthesized from sucrose and composed of chains of D-glucose units connected by ${\alpha}$-1,6-linkages by using dextransucrases. Dextran could be used as vicosifying, stabilizing, emulsifying, gelling, bulking, dietary fiber, prebiotics, and water holding agents. We isolated new strain capable of producing dextran from Korean traditional kimchi and identified as Leuconostoc sp. strain JYY4. Batch fermentation was conducted in bioreactor with a working volume of 3 L. The media was MMY and 15% (w/v) sucrose. Mineral medium consisted of $3.0g\;KH_2PO_4$, $0.01g\;FeSO_4$, $H_2O$, $0.01g\;MnSO_4$, $4H_2O$, $0.2g\;MgSO_4\;7H_2O$, 0.01 g NaCl, $0.05g\;CaCl_2$ per 1 liter deionized water. The pH of media was initially adjusted to 6.0. The inoculation rate was 1.0% (v/v) of the working volume. Temperature was maintained at $28^{\circ}C$. The agitation rate was 100 rpm. The production pattern of dextran was associated with the cell growth. After 24 hr dextran reached its highest concentration of 59.4 g/L. The sucrose was consumed completely after 40 hr. Growth reached stationery phase when sucrose became limiting, regardless of the presence of fructose or mannitol. When the specific growth rate was 0.54 hr-1, utilization averaged 5.8 g/L-hr. The yield and productivity of dextran were 80% and 2.0 g/L-hr, respectively. Dextrans produced by were separated to two different size by an alcohol fraction method. The size of high molecular weight dextran (45% alcohol, v/v), less soluble dextran, was between MW 500,000 and 2,000,000. Soluble dextran (55% alcohol, v/v) was between 70,000 and 150,000. The molecular weight average of total dextran (70% alcohol, v/v) was between 150,000 to 500,000. The enzymatic hydrolyzates of total dextran of ATCC 13146 showed branched dextrans by Penicillium dextranase contained of glucose, isomaltose, isomaltotriose, and isomaltooligosaccharides greater than DP4 (degree of polymerization) that had branch points. Compounds greater than DP4 were branched isomaltooligosaacharides. Hydrolysates by the Lipomyces dextranase produced the same composition of oligosaccharides as those by Penicillin dextranase.