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Cheng Chen,Min Li,Chunxia Wang,Shaohai Fu,Wenjun Yan,Chuansheng Chen 한국섬유공학회 2018 Fibers and polymers Vol.19 No.6
The wool fabrics were treated by ultraviolet (UV) radiation and then dyed with Camellia sinensis (L.) O. Ktze var. waldensae (S.Y.Hu) Chang (yellow-bud tea) extract using meta-mordant dyeing method. The results indicated that the hydrophilicity of wool fabrics was improved after UV radiation treatment, which was conducive in improving color performance for the meta-mordant dyeing with yellow-bud tea extract of wool fabrics. The optimal dyeing process was that the powdered extract (5.0 % o.w.f) and the CuSO4 (2.0 % o.w.f) were added to the dyeing liquor, the pH value was adjusted to 3.5-4.0 by HCOOH, the wool fabrics treated by UV radiation for 10 min and then were dyed at a bath ratio of 1:50 under 95 oC for 70 min. By means of three-factor quadratic current rotation revolving design (TQCRRD) method, the computation results of the mathematical equations and models indicated that UV radiation was the most important factor for meta-CuSO4 dyeing with yellow-bud tea extract for wool fabrics.
Performance of fluidized bed electrode in a molten carbonate fuel cell anode
Jubing Zhang,Zhaoping Zhong,Jianmin Xiao,Zongming Fu,Jinxiao Zhao,Weiling Li,Min Yang 한국화학공학회 2011 Korean Journal of Chemical Engineering Vol.28 No.8
A fluidized bed electrode could lower concentration polarization and activation polarization because of its high mass and heat transfer coefficient. The polarization characteristics of the fluidized bed electrode are systematically investigated in a molten carbonate fuel cell anode with an O_2/CO_2/gold reference electrode. The results show that polarization performance of the anode is improved by selecting proper flow rates of H_2, O_2 and CO_2, choosing suitable nickel particle content together with appropriate O_2/CO_2 ratio, and increasing reaction temperature as well as the area of the current collector. Limiting current density of 115.56 mA·cm^(−2) is achieved under optimum performance as follows:a cylindrically curved nickel plate current collector, nickel particle content of 7.89%, the reaction temperature of 923 K,H_2 flow rate of 275 mL·min^(−1), O_2/CO_2 flow rate of 10/20 mL·min−1 and O_2/CO_2 ratio of 1 : 2.
Dipeptide-Based Solution for Peritoneal Dialysis : Investigations with a Rat Model
Park, Min Sun,Lee, Jse Won,Joo, Jae Hak,Ryu, Chang Beom,Waniewski, Jacek,Werynski, Andzrei,Fu¨rst, Peter,Bergstro¨m, Jonas,Lindholm, Bengt,Lee, Hi Bahl 대한신장학회 1995 Kidney Research and Clinical Practice Vol.14 No.2
Objectives: To investigate the potential effect of dipeptides as osmotic agents, the peritoneal fluid and solute transport characterisitcs were evaluated during peritoneal dialysis using dipeptide-based dialysis solution in rat Methods: A 4 hour single peritoneal dialysis was performed in 12 normal Sprague- Dawley rats. The dipeptide solution(DPS) contained two different di-peptides (AB and AC) containing 3 different amino acids(A, B and C). The total molar concentration of the solution was 169 mmol/l(n=6). The electrolyte concentrations were sodium 132, calcium 1.75, magnesium 0.75, chloride 102, all in mmol/I. Bicarbonate 35 mmol/l was used as a buffer in DPS. The pH of DPS was 7.4. The glucose-based dialysis solution(GBS, Dianeal 3.86% solution containing 3.86 g/1 of anhydrous glucose) was used to provide control values(n=6). Sodium hydroxide 5 mmol/l was added into GBS to achieve the pH value of 7A and therefore the initial dialysate sodium concentration was 136mmol/1. The calculated osrnolality was 439 mmol/kg in DPS and 486 mmol/kg in GBS. Infusion volume was 30 ml. Intraperitoneal dialysate volume was estimated from the dilution of volume marker, I human serum albumin(RISA), with corrections for the elimination of RISA from the peritoneal cavity(Kz, ml/min) and sample volume. The diffusive transport coefficient(Kf3p) and the sieving coefficient(S) were estimated using modified Babb-Randerson-Farrell model. Results: The intraperitoneal volume over time curve and the maximum intraperitoneal volume(V_Dmax) were lower with DPS than with GBS. The peritoneal fluid reabsorption rate estimated by the volume marker elimination rate Kz, was significantly lower with DPS than with GBS. The intraperitoneal net volume change between 180 min and 240 min (Qv$gt;w .w) was significantly lower with DPS than with GBS. During dialysis with DPS the intraperitoneal concentrations of dipepitdes(AB and AC) decreased and the three amino acids, A, B and C, derived from the two dipeptides rapidly in the peritoneal cavity. At the end of a 4hr dialysis, the plasma concentrations of the three amino acids, A, B and C, increased rapidly and reached the concentrations of 51.8, 5.6 and 1.5 times higher thand their baseline values, respectively, while dipeptides were not traced in plasma. Kpp for urea and glucose with DPS were significantly lower than those values with GBS. Conclusion: It is concluded that dipeptides can be good alternative osmotic agents that provides prolonged ultrafiltration and nutrient amino acids from dialysate. However, the use of two dipeptides containing one common amino acid sholuld be avoided to prevent unphysilologically high concentration of certain arnino acid in plama, The future study on the altered peritoneal transport charateristics for urea and glucose with DPS is needed.
SURFACTANT-ASSISTED VAPOR DIFFUSION SYNTHESIS OF CoFe 2 O 4 HOLLOW SPHERES
MIN FU,YUN ZHAO,QINGZE JIAO 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2014 NANO Vol.9 No.4
Uniform CoFe 2 O 4 hollow spheres with diameter of about 300 nm and a shell thickness of ap-proximately 60 nm were synthesized by a easy vapor di®usion method in the presence of polyvinylpyrrolidone (PVP), in combination with calcination at 550?C. The structure and morphology ofas-prepared samples were characterized by electron microscopy and X-ray di®ractometry (XRD). The hollow spheres exhibited a high saturation magnetization value of 66.4 emu/g and coercivityof 417 Oe at room temperature. A possible formation mechanism for the CoFe 2 O 4 hollow sphereswas proposed.
Hung-Chun Fu,Jen-Ruei Chen,Min-Yu Chen,Keng-Fu Hsu,Wen-Fang Cheng,An Jen Chiang,Yu-Min Ke,Yu-Chieh Chen,Yin-Yi Chang,Chia-Yen Huang,Chieh-Yi Kang,Yuan-Yee Kan,Sheng-Mou Hsiao,Ming-Shyen Yen 대한부인종양학회 2018 Journal of Gynecologic Oncology Vol.29 No.5
Objective: Choice of hysterectomy and adjuvant treatment for International Federation of Gynecology and Obstetrics (FIGO) 2009 stage II endometrioid endometrial cancer (EEC) is still controversial. Aims of this study were to evaluate survival benefits and adverse effects of different hysterectomies with or without adjuvant radiotherapy (RT), and to identify prognostic factors. Methods: The patients at 14 member hospitals of the Taiwanese Gynecologic Oncology Group from 1992 to 2013 were retrospectively investigated. Patients were divided into simple hysterectomy (SH) alone, SH with RT, radical hysterectomy (RH) alone, and RH with RT groups. Endpoints were recurrence-free survival (RFS), overall survival (OS), disease-specific survival (DSS), adverse effects and prognostic factors for survival. Results: Total of 246 patients were enrolled. The 5-year RFS, OS, DSS and recurrence rates for the entire cohort were 89.5%, 94.3%, 96.2% and 10.2%, respectively. Patients receiving RH had more adverse effects including blood loss (p<0.001), recurrent urinary tract infections (p=0.013), and leg lymphedema (p=0.038). Age over 50-year (HR=9.2; 95% confidence interval [CI], 1.2–70.9) and grade 3 histology (HR=7.28; 95% CI, 1.45–36.6) were independent predictors of OS. Grade 3 histology was an independent predictor of RFS (HR=5.13; 95% CI, 1.38–19.1) and DSS (HR=5.97; 95% CI, 1.06–58.7). Patients receiving adjuvant RT had lower locoregional recurrence (p=0.046), but no impact on survival. Conclusion: Different treatment modalities yield similar survival outcomes. Patients receiving SH with RT had lower locoregional recurrent with acceptable morbidity. Age and tumor grading remained significant predictors for survival among patients with FIGO 2009 stage II EEC.
독거 노인 공동체 주택의 시각에 의한 사생활 노출에 관한 연구 - 금천구 보린 주택 1호, 3호, 4호를 중심으로 -
이수민(Lee, Su-Min),백지민(Baek, Ji-Min),푸원제(Fu, WenJie),김동식(Kim, DongSik) 한국주거학회 2021 한국주거학회 학술대회논문집 Vol.33 No.2
As the number of elderly people living alone increases, elderly community housing is suggested as a solution. The front door is opened as a lifestyle for the elderly living alone in a studio-type safe apartment. As a result, the degree of exposure to visual privacy in elderly community housing is intended to be understood by space area. As for the facilities subject to this study, online data were analyzed with Borin Housing Nos. 1, 3, and 4 located in Geumcheon-gu, Seoul. The arrangement of residential spaces according to the corridor type was examined and the degree of exposure of private spaces according to the viewing angle was identified. As a result of dividing the survey results by area, the exposure and frequency of private spaces in Borin House No. 1 were high, and the exposure and frequency of toilets in No. 3 were high. No. 4 is a normal elevator that has a high probability of exposure to private spaces, so it was investigated that the space that can be exposed in advance was blocked by walls or furniture in the residential space. Depending on the corridor type of community housing and the location of the front door, the privacy of the elderly living alone can be protected, which is believed to help create a residential model for the elderly living alone in the future.