구연 : 신장 ; 시간에 따른 잔여신기능과 복막투석적절도의 변화

신용봉,최혁준,조지형,장민화,조영준,박선희,이덕현,김용림,조동규 대한내과학회 2001 대한내과학회 추계학술대회 Vol.61 No.-

석유시론-석유산업 규제완화에 부쳐

신용봉,Sin, Yong-Bong 대한석유협회 1994 석유와 에너지 Vol.1994 No.7

제 20 차 대한신장학회 춘계학술대회 : Overnight D/P sodium 의 유용성

신용봉,김용림,박선희,이경아,조동규,(Bengt Lindholm) 대한신장학회 2000 춘계학술대회 초록집 Vol.2000 No.-

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중증의 급성신손상 환자에서 지속적 신대체요법 대체치료로서의 지속성 순화 혈액투석

신용봉 ( Yong Bong Shin ),조장희 ( Jang Hee Cho ),박자용 ( Ja Yong Park ),최지영 ( Ji Young Choi ),박선희 ( Sun Hee Park ),김찬덕 ( Chan Duck Kim ),김용림 ( Yong Lim Kim ) 대한신장학회 2011 Kidney Research and Clinical Practice Vol.30 No.5

Purpose: Although continuous renal replacement therapy (CRRT) is commonly used as a renal replacement therapy in critically ill patients with acute kidney injury, it has some disadvantages such as inconvenience, intensive labor, expensiveness and high bleeding risk. Recent studies have shown that sustained-low efficiency dialysis (SLED) can overcome these shortages of CRRT and also has the advantages of CRRT. We prospectively compared the efficiency, safety, cost and convenience between SLED and CRRT, and evaluated whether SLED could be a complementary substitute to traditional CRRT. Methods: Forty-six critically ill patients with acute kidney injury (AKI) from 2003 to 2005 were treated with SLED (n=25) and CRRT (n=21). The modality was tended to be selected randomly and based largely on availability of equipments and not on the clinical status of patients. Mann-Whitney rank-sum test, Fisher`s exact test and chi-square test were used for statistics, and data were described as median value, range from 25th to 75th. Results: The Acute Physiology and Chronic Health Evaluation (APACHE) II score at the point of ICU admission was 27 for SLED (range 17-3 25-75th percentile) and 26 for CRRT group (range 19-31) (p= NS). There were no significant differences between the two groups in mean arterial blood pressure when measured pre-dialysis (83 for SLED vs. 85 for CRRT; p=NS), mid-dialysis (90 vs. 84; p=NS) and at the end of treatment (88 vs. 80; p=NS). Incidences of hypotension also did not differ between the two groups (p=NS). Ultrafiltration volume per treatment day was similar in two treatment modalities (000 mL for SLED vs. 400 mL for CRRT; p=NS). Heparin was used to thirty-one patients (SLED: 18 patients, CRRT: 13 patients). The dosage of heparin tended to be lower in SLED (900 unit per day for SLED vs. 6,000 unit per day for in CRRT, p=0.065). Total clotting number was 4 for SLED and 11 for CRRT (p=NS). There was also no significant difference in hospital mortality between the two groups (56% for SLED vs. 42.9% for CRRT; p=NS). SLED was superior to CRRT in the aspect of cost and convenience. Conclusion: Our data suggest that SLED can be used as a useful substitute to traditional CRRT in critically ill patients with AKI.

복막투석에서 야간저류 후 투석액 대 혈장 sodium 농도비의 유용성

신용봉 ( Yong Bong Shin ),이현철 ( Hyun Chul Lee ),최혁준 ( Hyok Joon Choi ),조지형 ( Ji Hyung Cho ),장민화 ( Min Hwa Jang ),조영준 ( Yung Jun Cho ),박선희 ( Sun Hee Park ),조동규 ( Dong Kyu Cho ),김용림 ( Yong Lim Kim ) 대한내과학회 2002 대한내과학회지 Vol.63 No.6

배경: 복막투석에서 표준 복막평형검사 (standar d PET)는 인력과 시간이 많이 드는 검사이며 단지 확산에 의한 용질이동을 측정하므로 수분이동을 정확히 반영할 수 없다. 복막을 통한 sodium의 제거는 한외여과와 밀접한 연관이 있으며 최근 연구에 의하면 투석액 sodium 농도는 복막의 수분이동과 복막특성을 반영해줄 수 있다고 제시되고 있다. 저자는 야간저류 후의 투석액 sodium 검사가 표준 PET과 동일한 정보를 줄 수 있는지와 한외여과부 Background: Standard PET (peritoneal equilibration test) is time consuming and it cannot reflect the water removal accurately because it measures solute transport by diffusion only. Thus, it is important to find parameters that can be used to predict both

철도공급산업 경쟁력 평가 항목 도출 및 중요도 산정

정성봉(Sung-Bong Chung),최지호(Ji-Ho Choi),신용선(Yong-Sun Shin),장기태(Ki-Tae Chang) 한국철도학회 2013 한국철도학회 학술발표대회논문집 Vol.2013 No.11

최근 철도투자에 대한 인식이 개선됨에 따라 철도산업에 대한 관심은 날로 증가하고 있는 상황이다. 하지만, 국내 철도시장 규모는 한계가 있어 국내 철도산업의 발전을 위해서는 해외시장진출이 필수적이다. 효과적인 철도산업의 해외진출을 위해서는 국내 철도산업의 시장구조 및 기술수준을 객관적으로 파악할 필요가 있으나 아직까지 이러한 분석은 부재한 상황이다. 이에 본 연구에서는 국내 철도공급산업의 기술수준 경쟁력을 분석하기 위해 M. Porter의 다이아몬드 모델을 기반으로, 기존 산업경쟁력 사례분석 및 경제학적 지표추정 방법을 활용하여, 철도공급산업 특성에 맞는 철도공급산업 경쟁력 평가항목 을 선정하고, AHP 분석을 통해 항목간 중요도 산정을 하였다. 본 연구를 통해 국내 철도공급산업의 현 위치를 정확하게 진단할 수 있을 것으로 판단되며, 이를 통해 해외 철도시장진출 전략을 수립하는데 큰 기여를 할 것으로 기대된다. Improved awareness of recent railway investment , depending on the growing interest in the railway industry , and is the situation . However , the domestic rail market is limited to the development of the domestic rail industry into overseas markets is essential. Effective overseas expansion of the railway industry in the domestic railway industry market structure and technology level , but still have to understand the objective of this analysis is the absence . In this study, the technological level of domestic rail supply industry to analyze the competitive M. Porter"s diamond model , based on analysis of existing industry practices and economic competitiveness index estimation , utilizing railway supply industry railway supply industry, according to the characteristics and the competitive selection of assessment items , AHP analysis was to estimate the importance between items . In this study, the current position of the domestic railway supply industry can be expected to accurately diagnose , and thereby to establish the international rail market strategy is expected to be a major contribution.

호텔연회서비스의 직무만족과 업무의 효율화 방안

조춘봉(Chun Bong Cho),신용모(Yong Mo Shin) 한국외식경영학회 2000 외식경영연구 Vol.3 No.1

This study is concerning the service quality improvement of hotels banquet business operations. The purpose of the study was to examine the influence of job performance and banquet business importance on the service employees' job satisfaction and efficiency and the banquet service facilities as well as the effect of the service-offering ability and banquet service system upon job satisfaction and efficiency. It was closely related to guest satisfaction and the service quality improvement of hotel banquet business. The study results were summarized as follows: First, there were significant factors that influenced the successful accomplishment of banquet business, and its high efficiency required a professional knowledge of employees job at the banquet department of the five-star deluxe hotels in Korea. Second, the more conscious employees were of the significance of banquet business, the more efficient job satisfaction they have. Third, the facilities of banquet department and the ability of service offerings also were the valuable factors for the successful accomplishment and efficiency of banquet business. Fourth, it was found that the physical factors such as office layout and the systemized flow diagram had a significant relationship to the successful accomplishment and efficiency of banquet business. Finally, it was noteworthy that there was an indispensable relationship between the highly effective banquet business and the support for the department related to banquet business, especially sales personnel, reservation processing, banquet service team(designers, artists, engineers, cooks etc) and so on.

호텔 레스토랑의 고객선호도에 관한 연구

조춘봉,신용모 한국관광정보학회 2000 觀光情報硏究 Vol.- No.5

This study is on the on the guests preferences in choosing hotel restaurants. The recent growth of the service industry of food and beverage business, people have more chances to experience the intangible goods in regards with the food and beverage services. The hotel business will hardly avoid confronting a new phase on the occasion that, in the years 2000's, the number of domestic tourists is supposed to become doubled, marketing domination of the Chain Management Hotels will be a great deal to be reinforced. Moreover, it is presumed to be very encouraging that the enlarging number of foreign travelers and the increasing rate of using hotel restaurants by the domestic guests. So the high quality of the service is essential to the success of a hotel restaurant firm or other food and beverage service establishments. Any food and beverage service establishment such as restaurants should provide their customers with food and beverage products and good service to meet their physical and psychological expectations. The results of the study and the observed factors to raise the satisfaction degree of the guests by means of meeting and corresponding services to the guests' requests are summarized as follows: -The hotel restaurants in Korea have a fairly good reputation from their guests. -The tendency of using hotel restaurants by the repeating guests is observed very high. -The conditions of location related to transportations especially, and the enhancement of image are observed as the most important factors to make a repeat guests. -The taste and quality of food, and the hygiene and cleanness are foremost important in choosing hotel restaurants, while the space for children's play room and some special services or offerings on the occasion of memorable events such as anniversaries are counted much less important, or sometimes even ignored. As we have learned during the study, the ultimate goal of hotel restaurants is undoubtedly the maximization of profit by creating the number of repeating guests and new comers, the ideal and alluring long range management strategies should essentially be set up, and the unceasing study and effort are expected so that we can meet actively and positively at once the varying guests' needs and management surroundings.

표면 플라즈몬 현미경을 이용한 자기조립 단분자막의 이미징

표현봉,신용범,윤현철,양해식,김윤태 한국광학회 2003 한국광학회지 Vol.14 No.1

이차원 표면 플라즈몬의 공명 흡수와 포토 마스크를 이용하여 11-MUA(11-Mercaptoundecanoic acid)와 11-MUOH(11-Mercaptoundecanol) 둥으로 이루어진 자기조립 단분자막(Self-Assembled Monolayer; SAM)의 다채널 영상을 얻었다. 통상의 Photoresist를 이용한 리토그래피 대신에 Thiol bonding의 광산화를 이용하여 패터닝 과정을 줄이고, 백색광 및 대역통과 필터(λ$_{0}$=633nm)를 이용하여 입사광으로써 레이저를 사용할 때 나타나는 간섭무늬를 줄였다. 이로부터 나타나는 이차원 영상의 명암을 정량적으로 보정하면 수 나노미터(nm) 두께의 변화를 측정할 수 있다. 또한 표면 플라즈몬 공명법은 국소화된 근접장 (소산장)을 이용하는 방법으로서, 통상 많이 이용되는 형광법 등에서 나타나는 광탈색(Photobleaching)이나 소광(Quenching) 현상이 없이 시료의 처리가 간단하고, 영상 신호의 시간에 따른 변화가 극히 적으며, 실시간으로 신호의 변화를 측정할 수 있다는 장점이 있다. Multi-channel images of 11-MUA(11-Mercaptoundecanoic acid) and 11-MUOH(11-Mercaptoundecanol) self-assembled monolayers were obtained by using two-dimensional surface plasmon resonance (SPR) absorption. The patterning process was simplified by exploiting direct photo-oxidation of thiol bonding (photolysis) instead of conventional photolithography. Sharper images were resolved by using a white light source in combination with a narrow bandpass filter in the visible region, minimizing the diffraction patterns on the images. The line profile calibration of the image contrast caused by different resonance conditions at each point on the sensor surface (at a fixed incident angle) enables us to discriminate the monolayer thickness in nanometer scale. Furthermore, there is no signal degradation such as photo bleaching or quenching, which are common in the detection methods based on fluorescence.

지속성 외래 복막투석에서의 투석적절도와 영양상태와의 관계 부적절한 투석에도 좋은 영양상태를 보이는 군의 특성

조영준,신용봉,박선희,김준철,김찬덕,백미영,김용림,조동규 대한내과학회 1999 대한내과학회 추계학술대회 Vol.57 No.-