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차미선(Mi Sun Cha),박균영(Kyun Young Park),강태원(Tae Won Kang) 한국화학공학회 1999 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.37 No.4
Pressure filtrations of the slurry resulted from HCl leaching of a clay have been carried out at temperatures between 25 and 60 ℃ with the pressure varied from 1 to 5 atm. The filtration rates were compared between the clay calcined at 700 ℃ for one hour before HCl leaching and the clay without the calcination. At the filtration temperature of 25 ℃, the calcination had little effect on the filtration rate. As the temperature was increased to 60 ℃, however, the calcination gave a higher filtration rate. When the filtration pressure was increased from 1 to 5 atm, the cake resistance increased from 8.1×10^(10)에서 9.3×10^(10)(m/㎏) with the calcined clay and 1.11×10^(12)에서 6.37×10^(12)(m/㎏) with the uncalcined clay, respectively. Under a filtration pressure of l atm., the water content of the cake was 1.24 g water/g dry cake with the calcined clay and 1.12 g water/g dry cake with the uncalcined clay. Irrespective of whether the clay was calcined or not, 90 to 93% of the aluminum in the mother liquor trapped in the cake could be removed by washing the cake three times with a equal volume of water.
집단미술치료가 성인지적장애인 이용시설 사회복지사의 직무스트레스와 심리적소진에 미치는 효과
차미선(Mi-Sun Cha),신지현(Ji-Hyun Shin) 한국콘텐츠학회 2016 한국콘텐츠학회논문지 Vol.16 No.11
본 연구의 목적은 집단미술치료가 성인지적장애인 이용시설 사회복지사의 직무스트레스와 심리적소진에 미치는 효과를 알아보는데 있다. 연구 대상은 A시에 위치한 성인지적장애인 이용시설 사회복지사 8명으로 연구기간은 2016년 2월 16일부터 2016년 5월 31일까지 주 1회, 70분씩 총 13회기의 집단미술치료 프로그램을 실시하였다. 치료적 효과를 알아보기 위하여 프로그램 실시 전 · 후 그리고 4주 후에 직무스트레스와 심리적소진 검사를 실시하였다. 집단 간 동질성을 알아보기 위하여 맨 휘트니 U 검정(Mann Whitney U test) 을 실시하였으며, 이후 사전 · 사후 · 추후 차이를 알아보기 위해 윌콕슨 부호 순위 검정(Wilcoxon’s signed ranks test)을 실시하였다. 연구결과 집단미술치료 프로그램은 성인지적장애인 이용시설 사회복지사의 직무스트레스와 심리적소진 감소에 효과가 있었고, 그 효과가 긍정적으로 지속되는 것으로 나타났다. 이와 같은 결과로 볼 때 집단미술치료는 성인지적장애인 이용시설 사회복지사의 직무스트레스와 심리적소진을 감소시켰으며 효과적인 발전 방향을 제시하였다. The purpose of this study is to see the effect of the art therapy in group on the work stresses and emotional burnouts of social workers for diabled facility. The subjects are the 8 members of social workers at the facility for disabled located in city A. From Feb 16, 2016 to May 31, 2016, 70 minutes per session, overall 13 therapies were given. To see the therapeutic effects, there were test of stress and burnout before, afterwards and 4 weeks later. To find out the similarities in group, Mann Whitney U test was done, and Wilcoxons signed ranks test was done to see the difference afterwards. As a result, art therapy in group was effective on the work stress and burnout of social workers in daisabled facility and the positive effect lasted. This results suggests a developed ways to reduce work stress and emotional burnout of social workers for disabled facility.
대전 대덕구 출토 복식 유물에 부착된 세균의 종류 및 섬유소분해효소 활성
이상준 ( Sang Joon Lee ),차미선 ( Mi Sun Cha ),조현혹 ( Hyun Hok Cho ),백영미 ( Young Mee Back ),권영숙 ( Young Suk Kwon ) 한국의류산업학회 2005 한국의류산업학회지 Vol.7 No.1
This study was aimed to isolation and identification of attached bacteria on the clothes excavated from Deajeon area dating on the 16th century. From the observation with colony shape, 17 bacterial strains were isolated, and then 7 bacterial strains were identified with morphological and biochemical characteristics. Streptococcus sp., Alcah eves faecalis, Gemella sp., Acinetobacter sp., Pseudomones vesicularis, Aeromonas sails. salmonicida, Moraxella spp. In observation of the bacterial strains by the sort of textile, more bacterial strains were found in silk, cotton, and cotton bats than in ramie and hemp. It is suggest that hemp has antibacterial characteristics due to the presence of lignin. In the comparison washed samples with unwashed ones, there were more kinds of bacterial strains in washed samples. In the cellulase activity tests, all isolated bacteria had low level cellulase activity.
오양효,김영부,박영민,김민정,차미선,Oh, Yang-Hyo,Kim, Yung-Bu,Park, Young-Min,Kim, Min-Jung,Cha, Mi-Sun 한국생명과학회 1998 생명과학회지 Vol.8 No.1
Staphylococuus aureus and Escherichia coli is increasingly responsible for outbreaks of nosocomial infection around the world. Because serious infections due to these organisms currently necessiate use of non-$\beta$-lactam antimicrobial therapy and because strains is ofen resistant to many antimicrobial agents, infections with this organism are difficult to treat. Isolated strains from post operaton wounds of PNU hospital patient were tested for the antimicrobial susceptibility, resistant pattern and combined action to the 6 antibiotics. The minimal inhibitory concentraction of each antibiotic anc antibiotics combining in various ratios were measured by checkerboard dilution method. the synergism was determined through calculating the fractional inhibitory concentraction index (FICI). In case of S. aureus, 15 strains was shown to be highly sensitive to streptomycin and 13 strains to cephalothin. In case of E. coli, it is excellent senstitive 16 strains, sensitive 4 strains on cefoperazone, as like S. aureus, and thus the sensitive is most to be 66%. As the result of gaining MIC from S. aureus upon agar dilution method, MIC$_{50}$ was 8$\mu$g/ml, MIC$_{90}$ was 16$\mu$g/ml and thus the streptomycine is shown to be lowest. In case of E, coli, S. MIC$_{50}$ was 4$\mu$g/ml, MIC$_{90}$ was 16$\mu$g/ml, in streptomycin and thus is shown to be lower than S. aureus. As the result of comparing the resistance aspect of combining the antibiotics on S. aureus and E. coli, the resistant strain can be known to be reduced to the large range more than each 40% than combining with only aminoglycoside-series or cephalosporine-series. As the result of combining aminoglycoside-series, streptomycin and cephalothin or cefuroxime sensitive to S. aureus and E. coli in the above mentioned results, the increase or imporovement of effect is over 73% and 80%, respectively, thus the case od combining 2 antibiotics is shown to be better in the effect. Isolated strains from operating wounds were for the antimicrobial susceptibility. In case of S. aureus 15 strains was shown to be sensitive very much on streptomycin. In case of E. coli it is excellent sensitive 16 strains. As the results of combining aminoglycosides-series, streptomycin and cephalosporine series, cephalothin and cefuroxime, the increase or improvement of effect is over 73%, thus case of combining 2 antibiotics is shown to be better in the effect.
Hexagonal Boron Nitride의 합성에 있어서 MgB<sub>6</sub> 첨가의 효과
이대진,지미정,최병현,이미재,조남희,차미선,Lee, Dae-Jin,Jee, Mi-Jung,Choi, Byung-Hyun,Lee, Mi-Jai,Cho, Nam-Hee,Cha, Mi-Sun 한국세라믹학회 2009 한국세라믹학회지 Vol.46 No.1
The h-BN powder was synthesized by amorphous $B_2O_3$ and activated carbon at $1550^{\circ}C$ in nitrogen atmosphere, whose properties were examined according to $MgB_6$ addition. Amount of $MgB_6$ addition was varied in the range of $0{\sim}$10\;wt% of the initial mixture. It was observed that $MgB_6$ addition led to an increase in the amount and the grain size of h-BN and decrease in the amount of $B_4C$ forming. When $MgB_6$ added 5 wt%, the amount and crystallinity of h-BN increased as the holding time at the synthesis temperature was prolonged. It was also confirmed that the regularity of three-dimensional ordering of h-BN increases.