Selective hydrogen oxidation reaction catalysts approach to enhance the durability of PEMFC for FCEV under the condition of SU/SD and fuel starvation

Su Won Yun(윤수원),Ki Woong Park(박기웅),Tae June Kim(김태준),Byung Il Park(박병일),Gwon Goo Yeo(여권구),Hoon Hee Lee(이훈희),Bum Wook Roh(노범욱),Yong Tae Kim(김용태) 대한기계학회 2016 대한기계학회 춘추학술대회 Vol.2016 No.4

LCC 분석을 통한 도시가스와 지열 냉 난방설비의 경제성 평가

이일규(Lee, Il-Gyu),강현욱(Kang, Hyun-Wook),원유만(Won, Yoo-Man),김용수(Kim, Yong-Su) 대한건축학회 2011 大韓建築學會論文集 : 構造系 Vol.27 No.10

The purpose of this study is economic analysis of heating and cooling systems that are using gas, geothermal energy through life cycle cost analysis. The adapted research method selected the office building in Seoul region. The building is 15 stories and have total floor area of 270,000㎡. And the capacity of heating and cooling system applied in new building is 700RT to 750RT as a scale of heating and cooling system that can provide same capacity. The Adapted LCC Analysis period on 40 years. Comparing and analyzing life cycle cost about each heating and cooling system in cases, economical evaluation is estimated. The results are as follows: 1) The total life cycle cost of gas heating and cooling system is approximately 7,979million won, the total life cycle cost of geothermal heating and cooling system is approximately 8,073million won. 2) The cost of the geothermal heating and cooling system is higher than gas heating and cooling system about 1.18%. Thus, optimal plan is the gas heating and cooling system.

Prevention of medical malpractice and disputes through analysis of lawsuits related to coronary angiography and intervention

Cheol Won Hyeon,Won Lee,So Yoon Kim,Ji Yong Park,Su Hwan Shin 대한내과학회 2020 The Korean Journal of Internal Medicine Vol.35 No.3

Background/Aims: Possible fatal complications arising from coronary angiography (CAG), percutaneous coronary intervention (PCI), and coronary artery disease itself, are likely to cause medical disputes. Presenting the current status and reasons for judgments given in lawsuits related to CAG/PCI, this study aimed to identify ways to prevent unnecessary disputes and medical malpractice suits related to CAG/PCI through lawsuit analysis. Methods: A total of 13 cases (20 judgments) found in the Supreme Court of Korea’s Written Judgment Management System from 1998 to 2017 were analyzed. Results: Coronary artery injury was the most common causative complication that led to lawsuits (n = 6, 46%). Six cases (46%) were ruled in favor of the plaintiff for violation of duty of care (n = 4) and duty of explanation (n = 2), respectively. Cases that violated duty of care included two errors in intra-procedure device manipulation, one in pre-procedure diagnosis, and one in management of post-procedure complication. Lack of explanation regarding the risk of complications was pointed out in both cases that violated duty of explanation. The average awarded amount for the damages was 114,436,064 Korean won. Conclusions: Physicians need not fear unfair judgments so long as they follow standard of care because the Court consistently looked at the probability, the foreseeability, and the evidence. Therefore, maintaining standard of care is important. Besides, specific, detailed, and comprehensible explanations, including the risk of complications in addition to the necessity of procedures, are important to ensure the patient clearly understands the possible risk of adverse outcomes.

흉선종 제거후에 발생한 재생 불량성 빈혈 : 증례보고

전원선,이상철,김현정,배상병,김찬규,이남수,박노진,이규택,박성규,홍대식,박희숙,원종호 순천향의학연구소 2007 Journal of Soonchunhyang Medical Science Vol.13 No.2

Thymoma is associated with myasthenia gravis, Pure red cell aplasia, and autoimmune diseases such as autoimmune hemolytic anemia, aplastic anemia, and hypogammaglobulinemia. It's association with aplastic anemia is rare and aplastic anemia appearing after surgical removal of thymoma is especially rare. The authors hereby report a case of aplastic anemia occuring in a patient who was diagnosed with thymoma and myasthenia gravis and had the tumor surgically removed. The patient was treated with anti-thymocyte globulin, cyclosporin, and prednisolone, and showed partial remission with hematologic improvements after 12 months.

조혈모세포이식 환자에서 침습성 진균 감염에 대한 Micafungin의 예방 효과 및 안전성

김시현,이동건,최수미,권재철,박선희,최정현,유진홍,이성은,조병식,김유진,이석,김희제,민창기,조석구,김동욱,이종욱,민우성,박종원 대한감염학회 2010 감염과 화학요법 Vol.42 No.3

Background: Micafungin, a potent inhibitor of 1,3-β-D-glucan synthase, is a novel antifungal agent of the echinocandin class. In vitro study showed that micafungin was effective against Aspergillus species as well as Candida species, but clinical data on the prophylactic efficacy against invasive fungal infections (IFIs) other than candidiasis are still lacking. Materials and Methods: We identified 60 consecutive adult hematopoietic stem cell transplantation (HSCT) recipients who received at least 3 doses of micafungin during neutropenic period. Micafungin was started as an alternative in patients who were intolerant or had adverse events (AEs) to primary prophylactic antifungal agents. We retrospectively reviewed the medical records and analyzed the efficacy and safety of micafungin for prophylaxis against IFIs. Results: The patients either had autologous (n=9) or allogeneic (n=51: 1 syngeneic, 24 sibling, 26 unrelated donor) HSCT. Itraconazole oral solution (n=58) was the most frequently used first line antifungal agent for prophylaxis and was administered for median 11 days. The most frequent cause of switch to micafungin was vomiting (n=42). The duration of neutropenia and micafungin administration was median 13 and 12 days, respectively. A successful outcome was achieved in 45 (75%) patients. Empirical antifungal therapy was initiated in 13 (22%) patients. There were 2 cases (3.3%) of breakthrough fungal infections which comprised a probable invasive pulmonary aspergillosis and a possible invasive fungal sinusitis. There was no case of invasive candidiasis. A total of 53 (88%) patients experienced at least one AE regardless of causality during micafungin administration. The most frequent AEs were hypokalemia, vomiting, diarrhea, and elevated serum aspartate aminotransferase or alanine aminotransferase. Among the aforementioned AEs, only 1 case of diarrhea could be classified as a probable relation with micafungin when causality was assessed. There was no AEs that caused discontinuation of micafungin. Conclusions: Micafungin seems to be a safe and effective agent for prophylaxis of IFIs including aspergillosis as well as candidiasis in HSCT recipients. However, further large, prospective, and randomized comparative studies are warranted for aspergillosis.

Solar urticaria in Korean patients

( Sung Min Kim ),( Young Ah Cho ),( Ji Su Lee ),( Ji Youn Hong ),( Jin Hee Kim ),( Joo Ran Hong ),( Hye In Cheon ),( Yang Won Lee ),( Yong Beom Choe ),( Kyu Joong Ahn ) 대한피부과학회 2020 대한피부과학회 학술발표대회집 Vol.72 No.1

Background: Solar urticaria (SU) is an uncommon type of photodermatoses characterized by erythematous wheal with pruritus after sunlight exposure, which shows a female predominance. Only a few studies to analyze the clinical features of SU were reported in Asia. Objectives: We aimed to analyze the clinical and photobiological characteristics of SU in Korea. Methods: We retrospectively investigated the medical records of patients with SU who visited the department of dermatology, Konkuk university medical center from January 2005 to January 2020. Results: Of a total of 44 patients, 36 (81.8%) were male and 8 (18.2%) were female. The mean age at onset was 17.6 years (range, 5-47) and the mean threshold time was 19.7 minutes. Among 32 patients who underwent phototesting, the action spectrum most commonly implicated was ultraviolet (UV) A only in 12 (37.5%), and then visible light (415nm) only was responsible for SU in 8 (25.0%). Three patients (9.4%) were induced by both UVA and visible light (415nm). Even 4 patients (12.5%) were triggered by only natural sunlight. Serum immunoglobulin E levels were measured in 33 patients, and 17 (51.5%) showed values higher than normal. The treatment most widely used were oral antihistamine (43.2%), followed by phototherapy (13.6%). Conclusion: SU is a rare photodermatosis in Korea, which shows a male preponderance. In this study, UVA and visible light (415nm) were predominant action spectrum of SU.

Rocuronium의 애별투여방법이 모지내전근의 이완에 미치는 영향

최영균,김승수,이원진,조광래,이상은,김영환,임세훈,이정한,이근무,정순호,김영재,신치만 인제대학교 2009 仁濟醫學 Vol.30 No.-

Objective : There are controversies in pnmmg technique of rocuronium whether it can or can't shorten the onset time. We want to compare the effects of two different priming doses and intervals of rocuronium. Materials and Methods : After giving propofol, 50 patients were randomly assigned to 5 groups. Group I received a placebo, followed 3 min later by rocuronium 0.6 mg/kg. Priming doses and intervals of Group II, Ill, N, V were 0.06 rng/kg and 2 min, 0.12 mg/kg and 2 min, 0.06 rug/kg and 3 min, 0.12 mg/kg and 3 min, respectively. Total dose of rocuronium was 0.6mg/kg. Train of four (TOF) count or ratio and 1st twitch height of TOF (T1) were monitored with 15 secondsintervals. TOF ratio of each groups just before bolus injection, duration for TOF count to reach zero and duration for Tl to reach 95% depression after bolus injection were compared. Results : Duration for TOF count to reach zero and duration for Tl to reach 95% depression after bolus injection were decreased in priming groups compared to Group 1 (P < 0.01) In group V, significant depression of TOF ratio just before bolus injection was seen (P < 0.05). Conclusion : Priming technique with rocuronium is effective method to shorten the onset of neuromuscular block. But priming dose of rocuronium itself could cause hypoxia and aspiration in awake patients and should be used carefully. Priming dose of rocuronium 0.06 mg/kg and 2 minutes interval maybe relatively safe method.

저령차전자탕(猪苓車前子湯)의 기원(基源), 변천과정(變遷過程) 및 구조원리(構成原理)

권오원,김배수,이지원,신승원,이의주,Kwon, Oh-Won,Kim, Bae-Su,Lee, Ji-Won,Shin, Seung-Won,Lee, Eui-Ju 사상체질의학회 2016 사상체질의학회지 Vol.28 No.2

Objectives This paper investigates the origin, the progressive changes and the constructive principles of Jeoryoungchajeonja-tang(猪苓車前子湯).Methods Jeoryoungchajeonja-tang and other related prescriptions were analyzed in terms of their pathological indications, based on previous literature including 『Sanghannon(傷寒論)』, 『Keumkuaeyoryak(金匱要略)』, 『Donguibogam(東醫寶鑑)』, 『Donguisusebowon‧Sasangchobongwon(東醫壽世保元‧四象草本卷)』, 『Donguisusebowon‧Gabogubon(東醫壽世保元‧甲午舊本)』, 『Donguisusebowon‧Sinchukbon(東醫壽世保元‧辛丑本)』Results and Conclusions 1) The origin of Jeoryoungchajeonja-tang is discovered in the prescriptions for Lee-su(利水), that is, Jeoryoung-tang(猪苓湯). 2) Ohryoung-san(五苓散) introduced in 『Donguisusebowon‧Sasangchobongwon(東醫壽世保元‧四象草本卷)』progressively transformed into Shihosaryoung-san(柴胡四苓散)(『Donguisusebowon‧Gabogubon(東醫壽世保元 ‧甲午舊本)』) and ultimately into Jeoryoungchajeonja-tang(『Donguisusebowon‧Sinchukbon(東醫壽世保元‧辛丑本)』), a prescription appropriate for usage in the Mangeum symptomatology(亡陰證). 3) The Jeoryoungchajeonja-tang is composed of 10 herbs. Of these, Notopterygium incisum Ting(羌活), Aralia cordata Thunb.(獨活), Schizonepeta tenuifolia Briq.(荊芥), Saposhnikovia divaricata Schischk.(防風) make the Pyoeum(表陰) drop, and Anemarrhena asphodeloides Bge.(知母), Gypsum fibrosum(石膏) scatter the uihwa(胃火), and Poria cocos Wolf.(茯苓), Alisma canaliculatum(澤瀉), Polyporus umbellatus Fr.(猪苓), Plantago asiatica L.(車前子) facilitate urination.

노인의 영적 간호요구

최미혜,김경희,김귀옥,김기숙,김수강,김정신,김춘숙,노흥진,박지연,성혜연,오명선,이선희,이원옥,이윤영,이현수,장명재,차혜경,채정선,홍상희 중앙대학교 의과대학 간호학과 간호과학연구소 2001 중앙간호논문집 Vol.5 No.1

This study was designed to exam the aged's needs for spiritual nursing care. The purpose was to serve as a basis for the development of spiritual nursing practice. The major findings are as follows : 1. The degree of needs for spiritual nursing care as area was that needs of love and relationship mean 22.0, needs of meaning and object mean 28.2, needs of forgiving mean 13.5. Total needs for spiritual nursing care mean 63.7, which was on the upper middle level. The needs of meaning and object was rated highest. 2. Among the general characteristics of the subjects, needs of love and relatiohship wasn't significanlty different. 3. Among the general characteristics of the subjects, needs of meaning and object was significantly different according to two factors : age(F=7.260, p=0.001), religion(F=5.275, p=0.001). Higher needs of meaning and object was possessed by the older than the younger, by the one who have religion than the other. 4. Among the general characteristics of the subjects, four factors made a significantly difference to needs of forgiving : sex(t=-2.851, p=0.006), age(F=8.201, p=0.001), religion(F=6.928, p=0.000), disease(t=2.327, p=0.024). Higher needs of forgiving was possessed by man than woman, by the older than the younger, by the one who have religion than the other, by the one who have disease than the other.

WAsP과 WindSIM의 풍력자원예측성 평가

이원선,황윤석,백인수,유능수 江原大學校 産業技術硏究所 2009 産業技術硏究 Vol.29 No.B

Simulations using two well-known commercial codes, WAsP and WindSIM, were performed to predict the wind resources in complex terrains of Korea. The predictions from the codes were compared with the measured data. Cross predictions were performed for two closely located measurement sites. The results from WindSIM were found to be more accurate than those from WAsP. The predictions for wind velocity and direction in five different sites of complex terrain from WAsP and WindSIM were also compared. It was found that if the self prediction of the wind velocity and direction from WAsP is close to the measured wind data, the discrepancies between WAsP results and WindSIM results are also close.