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편측성 흉막 삼출액 환자에서 췌위변화에 의한 Oximetric SaO2 에 관한 연구
조철호(Chul Ho Cho),장준(Joon Chang),김세규(Se Kyu Kim),장재우(Jae Woo Chang),정석훈(Suk Hoon Chung),김성규(Sung Kyu Kim),이원영(Won Young Lee) 대한내과학회 1990 대한내과학회지 Vol.39 No.3
N/A The positional effect on ear oximetry was studied in 39 patients with unilateral pleural effusion, 1) The mean values of oximetric SaO2, in the supine, sitting, normal side dependent, and effusion side dependent positions were 94.7±2.4, 96.7±2.4, 94.8±2.7, and 93.2±2.6%, respectively. Oximetric SaO2, values were highest in the sitting position and lowest in the effusion side dependent position. 2) The mean values of oximetric SaO2 in the sitting and normal side dependent positions were significantly higher than those in the effusion side dependent position in small and total pleural effusion (p<0,05). 3) Larger positional differences of oximetric SaO2 were found in patients with a small pleural effusion, 4) The mean values of oximetric SaO2, after aspiration were not significantly higher than those before aspiration (p>0.05). We suggest that the patients with a small pleural effusion has a higher SaO2, in the sitting and normal side dependent positions than that in the effusion side dependent position.
Residual Stress Measurement of Micro Gold Electroplated Structure
Chang-WookBae,김용권,조철호,YoominAhn 한국정밀공학회 2002 International Journal of Precision Engineering and Vol.3 No.2
In this paper, a simple method to measure the residual stress in microstructure is presented. In order to find the residual stress in micro-machined beam, the first natural frequency of the beam that has the residual stress inside is analyzed using Rayleigh's energy method. Micro gold electroplated structure is fabricated by surface micro-machining process including electroplating. The made structure is an approximate shape of clamped-clamped beam and its 1st natural frequency is measured by resonance method. For the better estimation of the residual stress, an equivalent length of micro-fabricated beam to ideal beam is calculated by FEM. The residual stress was estimated from the equivalent length and the measured natural frequency. It was found that a tensile stress was residue in the micro beam structure.
병원산업에서의 시장 초기진입과 시장선도자의 경쟁우위 원천변화에 대한 연구
김창태 ( Chang Tae Kim ),조철호 ( Chul Ho Cho ) 경희대학교 경영연구원 2013 의료경영학연구 Vol.7 No.3
This study was designed to analyses causal relationship among hospital CRM, Relationship Quality, revisit intention and word of mouth, and intend to offer strategic implications in related to service operation. Firstly, sub-factors of hospital CRM activity was developed by exploratory and empirical research, and as a result of final validity and reliability analysis, four factors was extracted such as reservation management, complaint management, opinion conversions and after service management. Secondly, from a total effect point of view, except of reservation management, remainders (complaint management, opinion conversions, after service management) have positive effect on revisit intention and word of mouth including relationship quality (customer satisfaction and trust). The results of research show that it is important to reinforce hospital CRM activity in order to make relationship quality and raise revisit intention and word of mouth of patients. Also this study has some limitations and afterwards additional research will be asked.
김창태 ( Chang Tae Kim ),조철호 ( Chul Ho Cho ) 경희대학교 경영연구원 2013 의료경영학연구 Vol.7 No.3
This study was designed to analyses causal relationship among hospital CRM, Relationship Quality, revisit intention and word of mouth, and intend to offer strategic implications in related to service operation. Firstly, sub-factors of hospital CRM activity was developed by exploratory and empirical research, and as a result of final validity and reliability analysis, four factors was extracted such as reservation management, complaint management, opinion conversions and after service management. Secondly, from a total effect point of view, except of reservation management, remainders (complaint management, opinion conversions, after service management) have positive effect on revisit intention and word of mouth including relationship quality (customer satisfaction and trust). The results of research show that it is important to reinforce hospital CRM activity in order to make relationship quality and raise revisit intention and word of mouth of patients. Also this study has some limitations and afterwards additional research will be asked
김창태(Kim, Chang-Tae),조철호(Cho, Chul-Ho) 대한경영학회 2013 대한경영학회 학술발표대회 발표논문집 Vol.2013 No.1
본 연구에서는 병원의 외래환자들을 대상으로 병원CRM, 관계품질(고객만족, 신뢰), 재이용의도, 구전의도 간의 인과관계를 분석하여 관계품질과 성과제고를 위한 병원의 CRM 운영전략에 시사점을 제시하고자 하였다. 첫째, 병원 CRM활동의 하부요인은 탐색적 조사와 실증적 조사를 통해 개발되었으며 최종적인 타당성 및 신뢰성 분석결과 예약관리, 불평관리, 의견수렴, 사후관리의 4개 요인으로 요약되었다. 둘째, 총효과 측면에서 병원 CRM의 하부요인 중 예약관리를 제외한 의견수렴, 사후관리, 불평관리는 관계품질(고객만족, 신뢰)을 포함한 재이용의도, 구전의도에 정의 영향을 미치는 것으로 나타났으며 영향력은 일관되게 의견수렴, 사후관리, 불평관리의 순으로 동일하게 나타났다. 본 연구결과는 고객과의 관계품질을 돈독히 하고 환자들의 재이용의도와 구전의도를 제고하기 위해서는 병원CRM 활동의 강화가 중요함을 보여주고 있다. 또한 본 연구는 몇 가지 한계점을 가지며 향후 추가적인 연구가 필요함을 제시한다. This study was designed to analyses causal relationship among hospital CRM, Relationship Quality, revisit intention and word of mouth, and intend to offer strategic implications in related to service operation. Firstly, sub-factors of hospital CRM activity was developed by exploratory and empirical research, and as a result of final validity and reliability analysis, four factors was extracted such as reservation management, complaint management, opinion conversions and after service management. Secondly, from a total effect point of view, except of reservation management, remainders (complaint management, opinion conversions, after service management) have positive effect on revisit intention and word of mouth including relationship quality (customer satisfaction and trust). The results of research show that it is important to reinforce hospital CRM activity in order to make relationship quality and raise revisit intention and word of mouth of patients. Also this study has some limitations and afterwards additional research will be asked.
원저 : 폐결핵 환자의 기관지폐포세척액에서 Adenosine Deaminase 활성도에 관한 연구
천선희 ( Seon Hee Cheon ),조철호 ( Chul Ho Cho ),김병일 ( Byung Il Kim ),장상호 ( Sang Ho Jang ),장준 ( Joon Chang ),김성규 ( Sung Kyu Kim ),한지숙 ( Jee Sook Hahn ),이원영 ( Won Young Lee ),권오헌 ( Oh Hun Kwon ) 대한결핵 및 호흡기학회 1991 Tuberculosis and Respiratory Diseases Vol.38 No.1
만성폐질환에서 haemophilus influenzae 의 분리 및 약제 감수성에 관한 연구
김성규(Sung Kyu Kim),조철호(Chul Ho Cho),장상호(Sang Ho Jang),장준(Joon Chang),임명기(Myung Gi Lim),이원영(Won Young Lee),정윤섭(Jun Sop Chong) 대한내과학회 1990 대한내과학회지 Vol.39 No.3
N/A Hemophilus influenzae is being recognized with increasing frequenzy in various literature as a cause of pneumonia and of acute exacerbations of chronic lung disease indluding COPD and bronchiectasis. Currently, however, the incidence of H. influenzae ae a respiratory pathogen in adults is often underestimated in our country, In this study, the prevalence of H. iefluenzae and the antimicrobial resistance rate and efficacy of Cefaclor were assessed among a total of 155 patients with chronic lung diseases during the period from July 198S to June 1989. The following results were obtained: 1) The prevalence of H. influenzae in chronic airway diseases was 16.1% when routine media were used. With selective media, the positive rate was significantly highter (66.5%). 2) Among the 101 strains, 2% were serotype b and 90.1% were non-typable. 3) In the total 98% H. influenzae isolates studied, 18.4%, were resistant to ampicillin and none to Cefaclor and tetracycline, 4) The overall bacterialogical response of H. influenzae to Cefaclor, which is one of the two most active drugs, was found to be as follows: Eliminated 60.0%, Reduced markedly 22.9%, Persistent 11.4% and lncreased 5.7%, However, the results of Persistent and Increased could be found in selective media only. This study revealed the relatively high prevalence of H. influenzae in patients with Chronic airway diseases. The prevalence of H. influenzae was significantly higher when selective media was used for culture.