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송재준,천지훈,서지양 木浦大學校 沿岸環境硏究所 1999 沿岸環境硏究 Vol.16 No.1
It is so difficult to know about the course of non-point source that only few people studying. This is the reason why we did not get good result in water-treatment frequently. Point and non-point source study must be balanced. This report have this intention. Summer is rain season in Korea so we have many problem in water quality. Bad quality originated from agricultural field, non-point source, that flow nutrients, agricultural chemicals, weed chemicals and etc. In this report provide the basic data of non-point source study on river of Haenam Area. Three point that we research is near Bok-pyoung, Kil-ho and Eo-seong bridge at 1999. 7. 5 ∼ 7. 12. Resulted: BOD, COD, SS, T-N, NH₃-N, NO₃-N, T-P, PO₄-P, Alkalinity decrease afterraining, dilution, much amount of water quantity made it. Agricultural section that major non-point source effluent high waste concentration at first stage, but dilution made lower at last. so it is needed that non-point source water storage for improve first stage wastewater at the lower part of a river. And continuous study about non-point source outbreak reason by waste effluent quantity data that made water quality and quantity research after division of the land useness near the river is needed, too.
宋秉夏,韓在天 홍익대학교 산업기술연구소 1998 産業技術 Vol.8 No.-
This study is to analyze the problem of dwelling unit in the operation facilities and define the typology of dwelling unit type for the purpose of providing a variety in the dwelling unit, it is classified the internal and the extenal facts as following: Internal facts : 1) Space division type; 2) Space extension type; 3) Space separation type; 4) Space changeable type External facts : 1) Unit combination type; 2) Unit utilization type; 3) Structure system As a result of this study, the ways to provide choice in the dwelling unit are suggested as the below : 1) Concentration of wet zone; 2) Stepped unit choosing system by barrier free plan; 3) Exact division unit space into the wet and the dry zone; 4) Flexible nit composing method.
중앙 넁방시스템에 대한 외기보상제어의 에너지 절약 성능에 관한 실험적 연구
김동철(Dong-Cheol Kim),송재엽(Jae一Yeob Song),안병천(Byung-Cheon Ahn) 한국지열·수열에너지학회 2011 한국지열에너지학회논문집 Vol.7 No.2
In this study, energy saving performance of outdoor temperature reset control strategy for central cooling system is researched by experiments. Outdoor temperature reset control is the control method to change indoor air set temperature according to outdoor air temperature change. The range of indoor air set temperature is represented by the comfort temperature range of indoor air temperature offered from ASHRAE and indoor air set temperature is programmed between 22°C and 27°C by outdoor air temperature 20°C and 32°C in summer. As a result of applying outdoor temperature reset control to central cooling system, the suggested control method shows better performances of energy savings than the conventional method which indoor temperature maintains constantly.
장기 이식 환자에서 Voriconazole 과 Cyclosporine 또는 Tacrolimus의 상호작용
한혜원,김재연,송영천,김승은,유성길 한국병원약사회 2009 병원약사회지 Vol.26 No.1
Abstract: In organ transplant patients, the opportunity of fungi infections such as invasive aspergillosis increase by use of immunosuppresant drugs and voriconazole is recommended as primary treatment drug. When voriconazole is administered with cyclosporine(CsA) or tacrolimus(FK506), caution about increment of blood CsA or FK506 concentrations that caused by the change of CYP3A4 activity is required but few domestic cases of interaction were reported yet, The purpose of this study was to assess the effect of voriconazole on the blood CsA or FK506 concentrations in transplant recipients and the factors of recipients that have an effect on the results. 25 transplant recipients who were administered voriconazole with CsA or FK506 from January 1 of 2006 to August 17 of 2008 in Asan Medical Center were objects (12 patients on CsA coadministration arm - 9 males, 3 females; 41~62years;2 liver, 2 kidney, 3 bone marrow, 5 heart transplant recipients, and 13 on FK506 coadministration arm - 7 males, 6 females;26~65years; 10 liver, 2 kidney, 1 heart transplant recipients). Blood CsA or FK506 concentrations before and after coadministration of voriconazole, and maximum concentration in one month from the first day of coadministration were monitored retrospectively. In most cases CsA or FK506 were administered as recommended doses regardless of coadministration of voriconazole, and blood concentration increased from 239.42±126. 77ng/ml to maximum 411.92±225. 76ng/ml in CsA coadministration arm(p=0.003), and from 7.72±2.79ng/ml to maximum 19.16±9.35ng/ml in FK506 coadministration arm(p=0.003). Gender, age, and the kind of transplant organ did not affect to the change of blood concentration in both two arms. In consequences, administration of voriconazole could affect on the blood CsA or FK506 concentration, and in cases of administra tion of voriconazole in transplant recipients treated with CsA or FK506, close monitoring and dose adjustment is needed.
Cheon, Jae Hee,Song, Ho June,Kim, Joo Sung,Park, Kyu Joo,Kim, Woo Ho,Jung, Hyun Chae,Song, In Sung KOREAN ACADEMY OF MEDICAL SCIENCE 2007 JOURNAL OF KOREAN MEDICAL SCIENCE Vol.22 No.4
<P>We report on an exceptional vascular cause of gastrointestinal hemorrhage. A 30-yr-old man was admitted because of recurrent hematochezia. Colonoscopy showed circumferential, erythematous, and nodular vascular distensions with hematocystic spots in the terminal ileum resembling varicosis and subsequent computed tomography with 3-dimensional angiographic reconstruction revealed a vascular architecture around the terminal ileum. No other potential source of bleeding was identified. The patient was treated by ileocecectomy and the final diagnosis was of an arteriovenous malformation confined to the terminal ileum. He has been followed-up without a further hemorrhagic episode.</P>
Cheon Jae Hee,Kim Hyun-Soo,Han Dong Soo,Kim Sung Kook,Shin Sung Jae,Kim Joo Sung,Ye Byong Duk,Song Geun Am,Lee YoungJa,Kim Youngdoe,Lee Yoosun,Kim Won Ho 거트앤리버 소화기연관학회협의회 2023 Gut and Liver Vol.17 No.5
Background/Aims: To date, there is no prospective study that specifically investigated the efficacy of infliximab in intestinal Behçet’s disease (BD). This study evaluated the efficacy of infliximab in patients with moderate-to-severe active intestinal BD that are refractory to conventional therapies. Methods: This phase 3, interventional, open-label, single-arm study evaluated clinical outcomes of infliximab treatment in patients with moderate-to-severe intestinal BD. The coprimary endpoints were clinical response, decrease in disease activity index for intestinal BD (DAIBD) score ≥20 from weeks 0 to 8 for the induction therapy and week 32 for the maintenance therapy. Results: A total of 33 patients entered the induction therapy and were treated with infliximab 5 mg/kg intravenously at weeks 0, 2, and 6. The mean DAIBD score changed from 90.8±40.1 at week 0 to 40.3±36.4 at week 8, with a significant mean change of 50.5±36.4 (95% confidence interval, 37.5 to 63.4; p<0.001). Thirty-one (93.9%) continued to receive 5 mg/kg infliximab every 8 weeks during the maintenance therapy. The mean change in the DAIBD score after the maintenance therapy was statistically significant (61.5±38.5; 95% confidence interval, 46.0 to 77.1; p<0.001, from weeks 0 to 32). The proportion of patients who maintained a clinical response was 92.3% at week 32. No severe adverse reactions occurred during the induction and maintenance therapies. Conclusions: This study provided evidence that infliximab 5 mg/kg induction and maintenance therapies are efficacious and well-tolerated in patients with moderate-to-severe active intestinal BD. (ClinicalTrials.gov identifier: NCT02505568)
연료온도 및 분사홀 크기에 의한 GDI 인젝터 유량 특성 연구
송재천 ( Song Jae-cheon ),정재호 ( Jung Jae-ho ),박정환 ( Park Jeong-hwan ) 한국액체미립화학회 2018 한국액체미립화학회 학술강연회 논문집 Vol.2018 No.-
This study presents an experimental investigation of the flow characteristics according to fuel temperature and spray hole size for high pressure GDI injector, equipped with multi-hole type nozzle. For this purpose, injection rate measurements were performed with four different spray hole size over operating conditions from 100 to 300bar of fuel pressure and from -30 to +80℃ of fuel temperature. The test was conducted on FIE system bench similar to the actual engine operating conditions using the solenoid type injector.(Fig.1) Fuel injection rate was analyzed by using IAV injection rate system based on the Bosch method.
소아기 엔테로바이러스 수막염의 연령별, 바이러스 혈청형별 임상양상
양재혁(Jae Hyuk Yang),송지호(Ji Ho Song),천경렬(Kyeong Ryeol Cheon),정재근(Jae Keun Chung),송은송(Eun Song Song),최영륜(Young Youn Choi),우영종(Young Jong Woo),김영옥(Young Ok Kim) 대한소아신경학회 2016 대한소아신경학회지 Vol.24 No.1
Purpose: Enterovirus is the most common cause of aseptic meningitis, and there are many different serotypes of enteroviruses that cause diverse clinical symptoms. This study compared the clinical characteristics of childhood enteroviral meningitis in different age groups and viral serotypes. Methods: Patients younger than 18 years who were diagnosed with aseptic meningitis in the Pediatric Department of Chonnam National University Hospital from January 2008 to December 2014 were enrolled. We retrospectively reviewed their clinical records. Results: Enterovirus was tested in 66.6% of 655 patients with aseptic meningitis, with the testing being more frequent in younger patients (P<0.001). Enterovirus was present in 69.7% of patients, and able to be serotyped in 52.6%. Headache and irritability were more frequent in older children, whereas respiratory and neurologic symptoms were more common in infants and early childhood (P<0.05). Marked pleocytosis in the cerebrospinal fluid (CSF) was more frequent in neonates and infants, whereas marked increases in CSF proteins were more common in adolescents (P<0.05). The most common enterovirus was coxsackievirus B1 (CB1) in neonates and enterovirus 71 (EV71) in infancy and early childhood. Compared with the mean frequencies of symptoms in enteroviral meningitis, less frequent symptoms were fever in echoviruses (Es), headache or irritability in CBs and EV71, and vomiting in CBs. Neurologic symptoms were frequent in EV71 (P<0.05). Marked CSF pleocytosis was more frequent in CBs and Es (P<0.05). Conclusion: The clinical characteristics and laboratory findings of childhood enteroviral meningitis differ with age and viral serotype. In addition, the prevalent enteroviral serotypes differ with age.
빌딩 내 중앙냉방시스템의 제어기법에 따른 제어성능 및 에너지 비교에 관한 연구
송재엽(Jae-Yeob Song),안병천(Byung-Cheon Ahn),김진(Jin Kim),백승재(Seung-Jae Baek) 대한설비공학회 2009 대한설비공학회 학술발표대회논문집 Vol.2009 No.-
In this study, performance and energy from each control method were reviewed with the simulation. The methods are classified as systems such as cooling system using fan coil unit and HVAC currently used in buildings, VAV system, and optimal control-algorithm system. The simulation analysis program is made by TRNSYS 15, based on the actual data. As a result of this study, the central cooling system with optimal control-algorithm increases electricity energy and reduces gas consumption. Taken as a whole, it uses energy less than any other existing method.