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양대진,김지은,이규호,Yang, Dae-Jin,Kim, Ji-Eun,Lee, Kyoo-Ho 대한한방안이비인후피부과학회 2015 한방안이비인후피부과학회지 Vol.28 No.3
Objectives : This study was designed to assess the effect of Soyangin Medicines on Soyangin chronic urticaria patients by retrospective methods.Methods : We treated 37 Soyangin chronic urticaria patients who visited Haneulmaeum Korean Medicine Clinic from September 1st 2011 to June 30th 2014. We administrated the Soyangin patients with Soyangin Medicines such as Hyeongbangsabaek-san(荊防瀉白散), Yanggyeoksanwha-tang(凉膈散火湯) and so on for 3 months. We measured the effect biweekly by using Urticaria Activity Score(UAS). We analyzed the information and medical history of patients by Frequency analysis, and UAS by Repeated measures, ANOVA.Results & Conclusions : Every items of UAS were improved by Soyangin Medicines. And the improvement was statistically significant(p<0.05).
소양인(少陽人) 형방도적산(荊防導赤散)으로 치료한 지루성피부염 4례
이희경,임장우,양대진,Lee, Hee-Kyoung,Lim, Jang-Woo,Yang, Dae-Jin 대한한방안이비인후피부과학회 2016 한방안이비인후피부과학회지 Vol.29 No.3
Objectives : The purpose of this study is to report the effectiveness of Hyeongbangdojok-san on 4 seborrheic dermatitis patients who were diagnosed as Soyangin.Methods : 4 seborrheic dermatitis patients were treated by Hyeongbangdojok-san. The effect of treatment was measured by EASI score, VAS score, photographs.Results : EASI score and VAS score decreased as a result of Hyeongbangdojok-san treatment in 4 patients.Conclusions : These case-studies showed an efficient result of using Hyeongbangdojok-san in the seborrheic dermatitis of Soyangin. And an author consider that continuous clinical study will be needed in Korean medical dermatology.
Doping effects on the thermoelectric properties of Cu-intercalated Bi2Te2.7Se0.3
이규형,최순목,김상일,노종욱,양대진,신원호,박희정,이기문,황성우,이정훈,문현아,김성웅 한국물리학회 2015 Current Applied Physics Vol.15 No.3
We herein report an enhancement of the thermoelectric performance of spark plasma sintered polycrystalline n-type Bi2Te2.7Se0.3 by the intercalation of Cu and the doping of Al on Bi-sites. Through the intercalation of a small amount of Cu (0.008), the reproducibility could be significantly improved, with ZT was enhanced from 0.64 to 0.73 at 300 K due to the reduced lattice thermal conductivity benefiting from intensified point-defect phonon scattering. We also found that Al is an effective doping element for power factor enhancement and for reducing the lattice thermal conductivity of Cu-intercalated Bi2Te2.7Se0.3. With these synergetic effects, an enhanced ZT values of 0.78 at 300 K and 0.81 at 360 K were obtained in 1 at% Al-doped Cu0.008Bi2Te2.7Se0.3 (Cu0.008Bi1.98Al0.02Te2.7Se0.3).
Titanium oxide nanotubes anodized in aqueous and non-aqueous electrolytes
Seong-Je Cho,Kyu-Shik Mun,양대진,Hun-Park,Yong-Joon Park,Jong-Oh Kim,Won-Youl Choi 한양대학교 세라믹연구소 2008 Journal of Ceramic Processing Research Vol.9 No.5
Titanium oxide nanotubes having a very large surface area are very attractive for battery, gas sensor, photo catalytic applications, and as biomaterials. Titanium of 99.7% purity was anodized in 1M potassium phosphate monobasic (KH2PO4) water solution, glycerine, and ethylene glycol with 0.15M, 0.17 M, and 0.075 M NH4F. Titanium oxide nanotubes were fabricated at an anodization maximum potential of 25 V in the aqueous solution, 50 V in glycerine, and 60 V in the ethylene glycol solution. The maximum lengths of nanotubes were 3.0 μm, 14 μm, and 164 μm, respectively. The diameter and length of the titanium oxide nanotubes were compared. The diameters of nanotubes were from 100 nm to 150 nm in the aqueous and ethylene glycol solutions but on the other hand the diameter was 60 nm in glycerine. These differences come from the properties of the anodization solution such as the viscosity and ionic strength of the solutions (electric conductance) and these are key factors for titanium anodization. After anodization, annealing at 500 oC for 30 minutes was followed and the anatase phase appeared on the surface of the titanium nanotube. From electron-diffraction patterns obtained by the fast Fourier transform (FFT) of HRTEM images, the measured angle between the (011) and (101) planes was 82.2o, which was consistent with the theoretical value of the anatase structure. From results of this study, we could control the morphology of titanium oxide nanotube arrays by anodization. Titanium oxide nanotubes having a very large surface area are very attractive for battery, gas sensor, photo catalytic applications, and as biomaterials. Titanium of 99.7% purity was anodized in 1M potassium phosphate monobasic (KH2PO4) water solution, glycerine, and ethylene glycol with 0.15M, 0.17 M, and 0.075 M NH4F. Titanium oxide nanotubes were fabricated at an anodization maximum potential of 25 V in the aqueous solution, 50 V in glycerine, and 60 V in the ethylene glycol solution. The maximum lengths of nanotubes were 3.0 μm, 14 μm, and 164 μm, respectively. The diameter and length of the titanium oxide nanotubes were compared. The diameters of nanotubes were from 100 nm to 150 nm in the aqueous and ethylene glycol solutions but on the other hand the diameter was 60 nm in glycerine. These differences come from the properties of the anodization solution such as the viscosity and ionic strength of the solutions (electric conductance) and these are key factors for titanium anodization. After anodization, annealing at 500 oC for 30 minutes was followed and the anatase phase appeared on the surface of the titanium nanotube. From electron-diffraction patterns obtained by the fast Fourier transform (FFT) of HRTEM images, the measured angle between the (011) and (101) planes was 82.2o, which was consistent with the theoretical value of the anatase structure. From results of this study, we could control the morphology of titanium oxide nanotube arrays by anodization.