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치효산(治效散) 및 치효산가미방(治效散加味方)이 항(抗)알레르기 및 폐손상(肺損傷)에 미치는 영향(影響)
신원규,정규만,Shin Weon-Kyoo,Jeong Gyu-Mahn 대한한방소아과학회 1998 대한한방소아과학회지 Vol.12 No.1
Experimental studies were done to research the clinical effects of Chihyosan and Chihyosangamibang on the Anti-allergic effect and pulmonary function of $O_3$ intoxicated Rats. Anti-allergic effect experiment consisted of vascular permeability responses to intradermal histamine and serotonin, 48hrs homologous passive cutaneous anaphylaxis provoked by the IgE-like antibody against egg white albumin, and delayed type hypersensitivity responses to Picryl Chloride and SRBC. Pulmonary function of $O_3$ intoxicated Rats experiment consisted of lung TBA value, water Contents of the lung, oxygen consumption time, and arterial blood $pCO_2,\;pO_2,\;HCO_3^-$, pH level. The results obtained as follows; 1. In the effects of Chihyosan and Chihyosangamibang on vascular permeability responses to intradermal histamine, both of chihyosan and Chihyosangamibang group revealed significant effect. 2. In the effects of Chihyosan and Chihyosangamibang on vascular permeability responses to intradermal serotonin, both of chihyosan and Chihyosangamibang group revealed significant effect. 3. In the 48hrs homologous passive cutaneous anaphylaxis provoked by the IgE-like antibody against egg white albumin, Chihyosan groups revealed significant effect, but Chihyosangamibang groups revealed none significant effect. 4. In the delayed type hypersensitivity responses to Picryl Chloride, Chihyosan and Chihyosangamibang groups revealed none significant effect. 5. In the delayed type hypersensitivity responses to. SRBC, Chihyosan revealed none significant effect, but Chihyosankamibang revealed significant effect. 6. Both of Chihyosan and Chihyosangamibang groups revealed significant effect on decrease of the lung TBA value of lung. 7. Both of Chihyosan and Chihyosangamibang groups revealed significant effect on decrease of the water contents of right and left lung. 8. Both of Chihyosan and Chihyosangamibang groups revealed significant effect on decrease of oxygen consumption time. 9. In the decrease effect of arterial blood $pCO_2$ level, both of Chihyosan and Chihyosangamibang groups revealed none significant effect. 10. In the increase effect of arterial blood $pO_2$ level, both of Chihyosan and Chihyosangamibang groups revealed none significant effect. 1. In the decrease effect of arterial blood $HCO_3^-$ level, both of Chihyosan and Chihyosangamibang groups revealed significant effect. 12. In the increase of arterial blood pH level, Chihyosangamibang groups revealed none significant effect, but Chihyosan groups revealed significant effect. According to above stated results, both of Chihyosan and Chihyosangamibang are very usefully for treatment of cough, asthma, chronic obstructive pulmonary diseases and allergic pulmonary diseases.
고온 플라즈마를 이용한 붕소 함유 나노입자 제조에 관한 연구
신원규(Weon Gyu Shin) 대한기계학회 2012 大韓機械學會論文集B Vol.36 No.7
열플라즈마 시스템을 이용하여 붕소 함유 나노입자를 제조하기 위한 새로운 방법이 시도되었다. BCl₃ 와 CH₄ 전구체 기체를 열플라즈마 영역으로 분사하여 고온에서 분해시킨 후, 기체상 응핵 및 성장과정을 통하여 붕소 또는 붕소 카바이드 입자를 제조하였다. X 선 광분자 분석법을 이용하여 입자 표면의 화학적 결합 상태 및 카바이드와 관련된 B-C 결합 구조 내의 붕소와 탄소의 원자 비율을 측정 및 분석하였다. 또한 나노입자 형상 및 크기 분석을 위해 주사식 투과현미경과 전자에너지손실분광법이 이용되었다. 제조된 나노입자는 30-70 nm 내의 크기 분포를 갖고 있으며, BCl₃ 와 CH₄ 전구체 기체가 각각 20sccm, 25 sccm 사용되었을 때 B-C 결합 구조 내의 붕소와 탄소의 비는 2.13 이었다. A new method for producing boron-containing nanoparticles is described. Boron trichloride (BCl₃) and methane (CH₄) are dissociated through injection into a thermal plasma followed by a nucleation process producing boron or boron carbide nanoparticles. X-ray photoelectron spectroscopy was used to detect B-C bonds related to the carbide state and to probe the ratio of boron to carbon in the B-C bond structure. In addition, nanoparticles were characterized with scanning transmission electron microscopy and electron energy loss spectroscopy. It was found that nanoparticles were in the range 30?70 nm and a boron to carbon ratio in the B-C bond structure of up to 2 can be reached when BCl₃ of 20 sccm and CH₄ of 25 sccm were used.
Enhanced photoelectrochemical water splitting using ZnO-TiO₂ core-shell nanowires
Weon Gyu Shin(신원규),Kyuwon Jung(정규원),Jinse Park(박진세) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.4
We present synthesis methods for cotaing the vertically aligned ZnO-TiO2 nanowires (NWs) heterostructure on an Si-wafer using a chemical vapor deposition method. The well-developed ZnO-TiO2 core–shell NWs displays a higher photocurrent density/photoconversion efficiency of 0.53% compared the ZnO NWs (0.22%) because of the effective addition of photogenerated electron–hole separation originating from the ZnO NWs core and the conformal covering of a amorphous TiO2 passivation shell. In addition, we present Au nanoparticle decorated ZnO-TiO2 NWs can enhance the photoconversion photoelectrochemical water splitting efficiency up to 0.70%. The improved efficiency is due to the enhanced absorbance in the visible region. Therefore, these results suggest that the vertically aligned one-dimensional ZnO-TiO2 core–shell NWs heterostructure is a promising photoanode for solar energy conversion devices.