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김은식,Kim, Eun-Sik 대한병원협회 1984 대한병원협회지 Vol.13 No.12
초창기의 어려웠던 환경을 극복하면서 이제 점차 내실을 기하며 발전하는 우리나라 의료보험제도는 그간 의료시혜의 광대란 측면에서 복지제도의 굵직한 자취를 남겨놓은데 그 의의를 찾을 수 있겠다. 그러나 보다 많은 수혜자, 견실한 보험재정의 유지, 의료기관의 발전이란 측면에서 모두 진립시켜 나가기에는 계속적인 제도상의 연구가 뒷받침되어야 하리라 본다. 본 고는 우리나라 의료보험 제도중에서 특히 의료비지불제도에 관심을 갖고 선진외국의 의료비제도를 고찰하고 비교하므로써 우리나라 진료비 심사 및 지불제도에 관한 이해를 도모하고자 게재하는바이다
정수슬러지를 활용한 입상형 키토산비드의 인산염 흡착특성평가
김은식 ( Eun-sik Kim ),윤순도 ( Soon-do Yoon ),심왕근 ( Wang-geun Shim ),황민진 ( Min-jin Hwang ) 한국키틴키토산학회 2018 한국키틴키토산학회지 Vol.23 No.3
수계에 잔류하는 인산염 제거 및 회수용 흡착여재를 개발하기 위하여, 정수처리과정에서 발생하는 폐슬러지 기반의 입상형 키토산 비드를 제조하였다. 정수슬러지가 함유된 PDWTSGCB는 단일성분의 키토산 비드의 인산염 흡착량의 약 2.8배 향상된 96.9mg/g으로 조사되었다. 흡착평형량과 흡착속도는 각각 Freundlich 흡착등온식과 세공확산모델로 설명할 수 있었으며, 반응온도 증가에 따라 인산염에 대한 세공확산계수와 최대흡착량이 증가함을 확인하였다. Drinking water treatment sludge based adsorptive granular chitosan bead (GCB) was prepared for removal or recovery of phosphate in aqueous solution. The phosphate adsorption capacity of the chitosan granules combined with pyrolyzed drinking water treatment residuals (PDWTS-GCB) was about 2.8 times higher than that of control (GCB without PDWTS addition). In order to assess the phosphate adsorption capability of PDWTS-GCB, the adsorption equilibrium isotherm, kinetics, and regeneration performance were rigorously evaluated. The adsorption equilibrium isotherm of phosphate on the PDWTS-GCB could be represented by Fruendlich isotherm model. The pore diffusion model was employed to determine the internal diffusion coefficient and the results was in good agreement with experimental kinetic data. Adsorption equilibrium capacities and diffusion coefficients of the phosphate increased with increasing system temperature.
심혈관계 조영술시 Urografin 76 이 좌심실에 미치는 영향
김은식(Eun Sik Kim),지용광(Yong Kwang Jee),박귀동(Kwi Doug Park),조준길(Joon Kil Cho),이홍순(Hong Soon Lee),정준기(June Key Chung),이학중(Hak Choong Lee) 대한내과학회 1986 대한내과학회지 Vol.30 No.6
N/A Hemodynamic effect of Urografin 76 was observed during left ventriculography in 17 patients with various heart disease. The subject were devided into 2 groups; Group I was those with focal hypokinesia or diffuse hypokinesia with ejection fraction less than 56% and Group Ⅱ was those who had relatively normal ejection fraction and apparently no hypokinesia. In group I, initial LVEDP was 12.6±l.43mmHg and the LVEDP 2 minutes after left ventriculography was 20.8±1.68mmHg. 1n group Ⅱ initial LVEDP was 10.1±1.41mmHg and LVEDP 3 minutes after the procedure was 12.7±1.41mmHg. Initial left ventricular systolic pressure was 116.7±4. 67mmHg and the 5 minutes after left ventriculography was 128.7±6.87mmHg in group I, while the L.V. systolic pressure in group Ⅱ was 109.4±6.67mmHg initially and 121.2±9.44mmHg at 5 minutes after the procedure. Serum osmolality following the left ventriculography was also measured in 9 patients. The osmolality increased significantly from 1 to 6 minutes after the contrast injection, then it went down to initial value after 10 minutes. LVEDP was elevated following the left ventriculography using Urografin 76. The degree of increase of LVEDP was mo e ficant in the group of myocardial impairment than in the group without impairment. The increase of LVEDP seemed to depend chiefly upon the directed effect of Urografin 76 myocardium rather than the increased circulating volume. Therefore, the use of rather low dose of contrast dye is suggested for patients with myocardial impairment.
폐플라스틱과 키토산을 활용한 입상형 활성탄의 염료 흡착특성 평가
김은식 ( Eun-sik Kim ),윤순도 ( Soon-do Yoon ),김지윤 ( Ji-yoon Kim ),황민진 ( Min-jin Hwang ) 한국키틴키토산학회 2020 한국키틴키토산학회지 Vol.25 No.4
염색 폐수 처리를 위한 흡착제를 개발하기 위하여, 폐 PET 수지로부터 활성탄을 개발하였으며, 이를 활용한 입상형 키토산 비드를 제조하였다. 활성제의 함량에 따른 활성탄의 세공특성과 methylene blue (MB) 흡착 제거효율을 평가하였다. MB 수용액에 대한 ACPRs의 최대흡착량은 ACPR-15에서 694.1 mg/g으로 나타났으며, Langmuir 흡착등온식으로 설명할 수 있었다. 폐 PET 수지를 활용한 활성탄의 흡착제거 공정 효율을 극대화하기 위해, 키토산을 활용하여 입상형 비드 CB-ACPR-15를 제조하였다. 흡착반응 온도 증가에 따라 염료의 제거 효율은 저하되었으며 Sips 흡착등온식과 Gibbs 자유에너지를 통해 설명하였다. 또한, MB 수용액의 초기농도에 따라 흡착속도가 증가되는 현상을 세공확산모델을 통해 분석하였다. The activated carbons (ACPRs) derived from Polyethylene terephthalate (PET) residues was prepared using wet impregnation of potassium hydroxide. The influence of the impregnation ratio on textural properties were evaluated. The overall porosity was improved with increasing impregnation ratio. For applying adsorption-based wastewater treatment system, the chitosan granules (CB-ACPR) combined with the ACPRs were prepared. In order to estimate the methylene blue (MB) adsorption capability of the CB-ACPR, the adsorption equilibrium isotherm and kinetic studies were evaluated. The adsorption equilibrium isotherm of MB on the CB-ACPR was represented by Sips isotherm model. The pore diffusion model was employed to determine the internal diffusion coefficient and the results was in good agreement with experimental kinetic data. Adsorption equilibrium capacities and diffusion coefficients of the MB increased with initial concentration.