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      • 할로겐화 탄화수소의 흡착제거기술 Ⅱ. Pressure Swing Adsorption 공정에 의한 할로겐화 탄화수소/공기 혼합물의 분리

        이태진,안희관,김윤갑,강석호 嶺南大學校 環境問題硏究所 1990 環境硏究 Vol.10 No.1

        An experimental study was performed for the bulk separation of halogenated hydrocarbons and air mixture(CF₂Cl₂/air, CH₂Cl₂/air=0.1/99.9 Vol.%) in a pressure swing adsorption (PSA) process packed with various adsorbents, The PSA process cycle comprised four stes : I pressurizaton, II adsorption, III countercurrent depressurrzation, IV purge. The order of appearance of break-through curve is MS-5A > MS-13X > W-AC > S-AC for CF₂Cl₂/Air and W-AC > S-AC > MS-13X for CH₂Cl₂/Air respectively. The separation effects for the variation of adsorption pressure were investigated. In a steady state PSA cycles, high purity air from step II and CFCs-rich gas from step IV were obtained.

      • KCI등재후보

        백혈병환자에서 Liposomal Amphotericin B로 치료된 파종성 Fusarium 감염 1예

        이지연,김성범,박대원,신성희,김용현,윤소영,엄중식,최철원,정희진,김우주,김준석,김장수,이갑노 대한감염학회 2003 감염과 화학요법 Vol.35 No.5

        Fusarium spp.는 사람에서 드물게 각막염, 조갑진균증, 상처나 화상부위감염 등을 유발하는 것으로 알려져 있으나 최근에는 면역저하자에서 기회감염의 원인균으로 증가하고 있는 추세이다. 면역저하자에서 파종성 감염이 있는 경우에 예후는 치명적이나, 증례가 많지 않고 진단방법이 제한되어 있어 조기 진단과 신속한 치료가 쉽지 않다. 그러나 특징적으로 피부병변의 동반이 흔하여 면역저하자에서는 피부 병변의 면밀한 관찰과 함께 Fusarium 감염을 조기에 의심하여 피부생검이나 배양을 하는 것이 진단에 도움이 되리라 생각된다. 파종성 Fusarium 감염의 치료로는 감염 부위의 국소적 외과적 절제와 전신적 항진균제의 사용이 필요하고 현재까지는 amphotericin B가 비교적 효율적인 항진균제로 알려져 있으나 면역저하자에서 이에 반응을 하지 않는 경우가 많다. 저자들은 급성골수성백혈병 환자에서 관해유도화학요법 시행 후 호중구감소상태에서 피부병변과 폐침윤이 발견되었고 피부의 중심부 궤양을 동반한 구진성 병변에서 배양검사를 통해 파종성 Fusarium 감염을 진단하였으며 liposomal amphotericin B (AmBisome )를 사용하여 성공적으로 치료한 예를 경험하여 보고하는 바이다. Fusarium spp., basically a superficial pathogen, is a newly emerging fungal pathogen of opportunistic infections in immunocompromised patients. At present, although Fusarium spp. are relatively resistant to amphotericin B, the combination of amphotericin B and surgical debridement appear to be optimal treatment for disseminated infection. Recently we experienced a 32-year-old neutropenic patient after induction chemotherapy for acute myelocytic leukemia presented with skin lesions and infiltrations in both lungs. We diagnosed with disseminated fusariosis by skin culture and successfully treated the patient with liposomal amphotericin B. We emphasize a high index of suspicion for skin lesions especially in immunocopromised patients.

      • 제왕절개 자궁적출수술의 임상적 고찰

        정갑인,남계현,이해혁,이순곤,이권해,김동희 순천향의학연구소 1997 Journal of Soonchunhyang Medical Science Vol.3 No.2

        Objective: This study was evaluated twenty-six cases of emergency Cesarean hysterectomy to analyse incidence, age distribution, parity, indications, complications, amount of blood transfusion and fetal morbidity. Methods and Materials : This study was carried out on twenty-six cases who underwent emergency Cesarean hysterectomy at department of obstetrics and gynecology, Soonchunhyang University Hospital from January 1987 to November 1997. Results: 1. The incidence of Cesarean hysterectomy was perfomed in 26 cases among total 19,277 deliveries(0.1%). 2. The indications of Cesarean hysterectomy were uterine atony, placenta previa, adhesive placenta and bleeding tendency. 3. There was matenal death in one case and main cause of death was massive bleeding due to disseminated intrabascular coagulopathy. 4. The complications of Cesarean hysterectomy were disseminated intravascular coagulopathy, bladder injury, postoperative infection, wound disruption and postoperative hemoperitoneum. 5. Two cases of fetal and neonatal mortality were intrauterine fetal death and neonatal death. Conclusion : The incidence of Cesarean hysterectomy was increased by increasing parity and maternal age.

      • KCI등재

        수출입 컨테이너 장치장 배정을 위한 소프트웨어의 개발

        김갑환,김홍배,홍봉희,김기영,배종욱,최진오,김두열,이영기,박영만,박강태,손행대 한국경영과학회 1995 經營 科學 Vol.12 No.3

        The Pusan Container Terminal faces a rapid increase in berthing time of container ships as well as in waiting time of external trucks, which is due to an absolute lack of yard space. This research is focused on the development of a decision support system for the planning of the container terminal yard assignment so that the yard space would be utilized most effectively. Efforts should be given to the reasonable assignment of the yard storage and the dynamic adaptation to the ever changing environment. The software introduced here is based o the know-how of the field exports and its framework takes the approach of the hierarchical decision making.

      • 도시 고형폐기물의 발생원 관리

        도갑수,이성희 동아대학교 환경문제연구소 1986 硏究報告 Vol.9 No.3

        The management of generating source was studied for effect treatment and disposal of municipal solid waste(MSW). Two house with boiler using briquette, one apartment with central heating system and Bukhan National Park were selected in this study as generating source. Generation rate, composition and properties such as moisture volatile solid(V.S), fixed solid(F.S) and lower heating value(LHV) of each materials in the MSW were measured weekly, and the collection system of MSW in Seoul city were investigated. From this experimental results, the following conclusions were obtained. 1. The annually average generation rate of MSW was 377g/cap.day in the case of apartment and 1350g/cap.day in the case of house which involved briquette ash in 75wt%. 2. As the generation rate changes in a large range in our country(the number of month within 15% above or below yearly mean were more than 33%), It is very difficult to determine the size of collection and treatment facilities. 3. It was possible to recover directly papers and plastic to 90% and 80%of them respectely from the generating source. In this case, the waste resources could be with good quality within 10% moisture content. 4. The weight proportions of garbages(vegetable, food and fruits) and plastic were 46.9 and 9.7wt% in annually average respectively, which were higher than those in other country. The moisture content and V.S. content of MSW were 45.3 and 41.4/wt% in annually average. 5. The lower heating value of MSW was measured to be 2170㎉/㎏ in wet basis after briquette separation, but to go down 800㎉/㎏ after papers and plastic recovery. 6. The equations for estimating LHV in wet basis were obtained in This equation (7) and (8), was found to be more correct than other equations. LHV = 4500Vc + 9500Vp-600W[㎉/㎏]···(7) LHV = 7260 Pi + 2950Pa + 640(P_(G)+P_(F))+4000Pc-600W[㎉/㎏]···(8) 7. The collection system containing separated collection in Seoul city was ineffective owing to the lack of landfill site and loading place of MSW. 8. It is necessary for as to take proper management system for solid waste in the National Park because visitors and generation quantity of solid waste change largely according the place and season. 9. The major collection facilities in the National Park were waste basket and incineration box, but the incineration box was too large and its collection period was irregular, so it was cause to the congestion of solid waste and bad smell. Therefore, we must set up the more waste basket which able to fine within 40∼50 m from the origination place of solid waste and induce the visitor to throw the solid waste, and remove the incineration basket to one-third of total volume for the only purpose of open burning of solid waste at elevated place.

      • KCI등재
      • KCI등재

        Due to and Based on

        Kap-Hee Lee(이갑희) 담화·인지언어학회 2004 담화와 인지 Vol.11 No.2

        Due to and Based an: A Corpus-based Study of Adverbials. Discourse and Cognition 11.2. 109-123. In standard English grammar there is rather strict differentiation between grammatical functions of some collocational phrases. In recent years, however, there has been a tendency to blur this distinction, especially in case of phrases like due to and based on. This paper attempts to investigate this tendency on the basis of six English corpora: ICE-GB, BROWN, LOB, FROWN, FLOB, and SWTTCHBOARD. The changes in the use of these two phrases will be analyzed in terms of the written and spoken form, regional variations, synchronic and diachronic perspectives. In addition, the overall results from the corpora are compared with those from high school textbooks in Korea in order to detect the tendency in Korea. Eventually the study probes into the possibility that the tendency is related to language change. Three interpretations are possible for the results, but I will argue that the analyses show the positive evidence that these phrases are in the process of decategorialization from the adjectival phrase, which is a core and intra-clausal element, toward the adverbial phrase, which is a periphery and extra-clausal element. The prediction that American spoken English is leading this tendency of adverbial function may explain why the use of these phrases with adverbial function is increasing.

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