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Sucralfate와 Guaiazulene이 편도적출술 후 치유 과정에 미치는 영향
정윤영,김성훈,김장묵 순천향의학연구소 1998 Journal of Soonchunhyang Medical Science Vol.4 No.1
Tonsillectomy may result in severe sore throat, otalgia, trismus and postoperative bleeding untill the inflamed and exposed muscle becomes covered with regeneratd mucosa. Sucralfate binds with the fibrous exudate of duodenal ulcers, forming a protective barrier that promotes healing. Guaiazulene inhibits histamine release and has strong antinflammatory action. Authors analyzed 90 patients who were treated with placebo, sucralfate and guaiazulene to evaluate modification of post-tonsillectomy pain and general strength return after tonsillectomy. The obtained results were as follows; 1) In trismus, fever and weight loss, there were no statistical significance. 2) Sucralfate and guaiazulene had the significant improvement of the oral intake, the sore throat and general strength retum statistically. But there was no difference between sucralfate and guaiazulene. Therefore, sucralfate and guaiazulene is a safe and well-tolerated topical agent that offers significant pain reduction and may promote healing in tonsillectomy patients.
겨울철 주택내 유기화합물 공기오염농도에 관한 측정연구 : 서울시내 96채의 주택을 대상으로 In case of 96 houses in Seoul
전정윤,박준석,손장열,池田耕一 대한건축학회 2004 대한건축학회논문집 Vol.20 No.5
Measurements on indoor organic compounds air pollution level in 96 houses were conducted. Houses which measurement carried out were collected based on the survey results about house type and constructed year in Seoul city. Indoor air organic compounds were monitored with two diffusive samplers. One was a cartridge treated with 2,4-initrophenylhydrazine for aldehydes sampling. The other was a passive charcoal tube for VOCs sampling. Two samplers were simultaneously exposed in living room during 24 hours. Aldehydes extracted with 2ml acetonitrile from the cartridge were analyzed by HPLC equipped with an UV diode array detector. VOCs were extracted with 2ml carbon disulfide from the charcoal tube by shaking and then analyzed by chromatograph and mass selective detector. The main Results were as follows; 1) Formaldehyde were detected in more than 90% of all homes, and average value of detected level was 54.92ppb. This alue is lower than ASHRAE guideline (100ppb) and WHO guideline (80ppb). 2) Toluene were detected in all homes, and EthylAcetate, 1-Butanol, ethylbenzene, p-Xylene, D-limonen were detected more than 50% of all homes. 24 hours averaged level of sum of VOCs was 179.96㎍/㎥, and this value is lower than WHO‘s TVOC(Total Volatile Organic Compounds) guideline (300㎍/㎥). 3) Mostly frequent detective level of formaldehyde was between 50-60㎍/㎥, and 84.09% of all homes showed lower level than WHO guideline. 4) Mostly frequent detective level of sum of VOCs was between 100-150㎍/㎥, and 86.46% of all homes showed lower level than WHO's TVOCs guideline.
서울시 주택내 휘발성 유기화합물 공기오염농도의 계절변화에 관한 연구
전정윤,박준석,손장열 대한건축학회 2005 대한건축학회논문집 Vol.21 No.3
For the purpose of examining about seasonal change in concentration of indoor organic compounds in Seoul, 96 houses in the winter and 49 houses in the summer were investigated. Indoor organic compounds concentration were measured and survey was performed by questionnaire. Indoor organic compounds were monitored with two diffusive samplers. One was a cartridge treated with 2,4-dinitrophenylhydrazine for aldehydes sampling. The other was a passive charcoal tube for VOCs sampling. Two samplers were simultaneously exposed in living room during 24 hours. Aldehydes extracted with 2㎖ acetonitrile from the cartridge were analyzed by HPLC equipped with an UV diode array detector. VOCs were extracted with 2㎖ carbon disulfide from the charcoal tube by shaking and then analyzed by chromatograph and mass selective detector. The main Results were as follows. (1) Both of Formaldehyde and VOCs concentration in the summer are lower than that in the winter. This is because of increasing ventilation rate according to the opening of windows in the summer. (2) Formaldehyde, toluene and ethylbenzene were indicated as the major indoor volatile organic compounds in Seoul Residence. (3) There were 10 times of deference in concentration between non-occupied new house and that of post-occupied. (4) There was no significant relation between house type and indoor concentration.
초소형 구조물의 부착 방지를 위한 새로운 자기 집합 물질에 대한 연구
김봉환,오창훈,전국진,정택동,변장웅,이윤식 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1
In order to achieve stiction-free polysilicon surfaces, we have suggested a new chemical grafting precursor and confirmed their excellent characteristics. When dichlorodimethylsilane(DDS, C_(2)H_(6)SiCl_(2)), a dialkyldichlorosilane widely used in silicon machining, have been used as a precursor, experimental results were clearly comparable to those of monoalkyltrichlorosilanes octadecyltrichlorosilane (OTS, C_(18)H_(37)SiCl_(3)) or 1H,1H,2H,2H-perfluorodecyltrichloro-silane (FDTS, C_(10)H_(4)F_(17)SiCl_(3)) in terms of stiction reduction. The polysilicon cantilevers were fabricated in the carefully controlled conditions and laser interferometer indicated that their residual stress gradient was 2 MPa/μm upward from the substrate. The SEM images of polysilicon cantilever beams with DDS coating are upward and no stiction is observed up to 2 mm in length.
Southern Blot Hybridization법을 이용한 악성 림프종의 면역유전형에 관한 연구
전호종,기근홍,김윤신,이미숙,이미자,장원재,장숙진,박영진,정춘해,정종훈,양성훈,이광민 조선대학교 1994 The Medical Journal of Chosun University Vol.19 No.2
Immunogenotyping using gene rearrangement analysis has emerged as a precise laboratory aid in the diagnosis and classification of malignant Iymphoid neoplasms. The lineage and clonality of the malignant Iymphoid neoplasms can be identified by the demonstration of rearrangements of antigen receptor genes of the immunoglobulin and T-cell receptor genes. The analysis of the gene rearrangements on the malignant Iymphoid neoplasms are also useful as a sensitive unique clonal markers to detect early recurrence in patients with malignant Iymphoid neoplasms after treatment. To analyze the sensitivity and specificity of gene rearrangements in the diagnosis of malignant Iymphoid neoplasms. 24 cases of malignat Iymphoma were examined by Southern blot hybridization using CTβ-T cell receptor β chain gene-DNA probe and JH-immunoglobulin heavy chain gene-DNA probe. The results of the immunogenotypings using Southern blot hybridization disclosed high correlation between the immunophenotyping using immunohistochemical stain with monoclonal antibodies (B-cell Iymphoma 84.2%. T-cell Iymphoma 75% ). The analysis of the gene rearrangement of the angioimmunoblastic lymphadenopathy(AILD) and unclassifiable Iymphoma using immunohistochemical stain could resolve the monoclonality and lineage . Rearranged bands to the CTβDNA probe were observed in one case out of 2 cases of AILD. One case of unclassifiable Iymphoma showed rearranged bands to the CTβ DNA probe. There were no rearrangements in reactive follicular Iymphoid hyperplasia and paracortical Iymphoid hyperplasia. In conclusion, DNA gene rearrangement study should be applied to differentiate the clonality and cell lineage in the malignant Iymphoma with indistinctive immunophenotype.
Plasmonic Solar Cells: From Rational Design to Mechanism Overview
Jang, Yoon Hee,Jang, Yu Jin,Kim, Seokhyoung,Quan, Li Na,Chung, Kyungwha,Kim, Dong Ha American Chemical Society 2016 Chemical reviews Vol.116 No.24
<P>Plasmonic effects have been proposed as a solution to overcome the limited light absorption in thin-film photovoltaic devices, and various types of plasmonic solar cells have been developed. This review provides a comprehensive overview of the state-of-the-art progress on the design and fabrication of plasmonic solar cells and their enhancement mechanism. The working principle is first addressed in terms of the combined effects of plasmon decay, scattering, near-field enhancement, and plasmonic energy transfer, including direct hot electron transfer and resonant energy transfer. Then, we summarize recent developments for various types of plasmonic solar cells based on silicon, dye-sensitized, organic photovoltaic, and other types of solar cells, including quantum dot and perovskite variants. We also address several issues regarding the limitations of plasmonic nanostructures, including their electrical, chemical, and physical stability, charge recombination, narrowband absorption, and high cost. Next, we propose a few potentially useful approaches that can improve the performance of plasmonic cells, such as the inclusion of graphene plasmonics, plasmon-upconversion coupling, and coupling between fluorescence resonance energy transfer and plasmon resonance energy transfer. This review is concluded with remarks on future prospects for plasmonic solar cell use.</P>