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W-Thiocyanate Complex의 抽出에 있어서 Amberlite LA₁의 利用
朴茂淳,孫炳贊 순천향의과대학 1979 Journal of Soonchunhyang Medical Science Vol.2 No.1
Comparision studies onthe extraction of Tungsten thiocyanate complex have been carried out using several pure organic solvents and 0.1% Amberlite LA₁solvents diluted with each solvent. The latter solvents show more advantages not only on extractability but also on linearity for the spectrophotometric determination of the complex than the former cases.
항공기 날개 스파의 단면적과 위치를 설계변수로 하는 중량 최적화 연구
朴燦宇,盧政武 경상대학교 생산기술연구소 2001 工學硏究院論文集 Vol.1 No.-
In this paper, the optimization is performed to find a more efficient aircraft wing box structure. A less weight aircraft wing box while satisfying required constraints is found by adjusting the wing spar cross-section area and location. Every optimization problem is constituted by an object function, design variables and constraints. In this thesis, stress conditions at each spar are used as constraints. In the case of the spar cross-section area optimization, two cases are handled. First, the spar cross-section area is assumed same at all span and there is one design variable for a spar. Secondly, the spar cross-section area is different by span direction and there are several design variables for a spar. In the case of spar location optimization, end positions of the each spar are selected as design variables. The reasonableness and accuracy of the optimization result is verified by comparing stress distributions and deformations before and after optimization. MSC/NASTRAN is used for the finite element analysis and the optimization.
朴茂淳,孫炳贊,金演斗 순천향의과대학 1978 Journal of Soonchunhyang Medical Science Vol.1 No.1
It has been observed that Pt(IV) in Hydrochloric acid solution, when treated with Tin(II) chloride give a orange color and the color that is due to chloroplatin-ous acid, is stable reproducible and quantitative. Thus it is possible to determine platinum by use of spectrophotometer. This method saves time in determination of Pt and is applied to estimation of small amounts of Pt in its ores and alloys.
朴在贊,金武剛,金弘善,申台均 충남대학교 의과대학 지역사회의학연구소 1988 충남의대잡지 Vol.15 No.1
This paper dealt with the histological feature of the Pekin duck olfactory mucosa and the specificity of the types of mucopolysaccharides present in the secretory cells of the duck olfactory mucosa. The nasal parts of ducks (1-week-old and 10-week-old) were fixed with 10% neutral formalin, decalcified, embedded in paraffin. Serial sections were cut 5 um thick and stained with alcian blue(pH 2.5) to demonstrate acidic mucopolysaccharides and the periodic acid-Schiff reaction to identify neutral mucopolysaccharides. The results were summarized as follows. 1. The duck olfactory mucosa consisted of the olfactory epithelia which compose of the receptor neurons, supporting cells, basal cells and goblet cells, and the lamina propria which contained Bowman's glands, olfactory nerve bunbles and connective tissue cells. 2. The thickness of the olfactory mucosa was 121.5±25.67um in the 1-week-old ducks, and 202±45.82km in the 10-week-old ducks. Increased thickness of olfactory mucosa was due to the increased thickness of lamina propria. 3. Histochemical techniques of the olfactory mucosa in 10-week-old ducks demonstrated that Goblet cells, sppporting cells and Bowman's gland contained both neutral and acidic mucopolysacc harides, the neutral mucopolysaccharides staining became enhanced first in the Goblet cells and Bowman's gland, and then in supporting cells. In 1-week-old ducks, both acidic and neutral mucopolysaccharides of Goblet cells reacted strongly, but those of supporting cells and Bowman's gland reacted presumably.
이찬우,편무실,공유식,박홍수 明知大學校 産業技術硏究所 1993 産業技術硏究所論文集 Vol.12 No.-
Alkaline degreasing agent(ADA) was prepared by blending of POE(6)-2-ethylhexyl ether(PEH-6). Tetronix T-701(T-701). Na2CO3, tetrasodium pyrophosphate(TSPP). Demol N, and MJU-100A. The physical properties of ADA tested with steel specimen showed the following results. The degreasing powers of ADA-6(PEH-6 20g/Na2CO3 40g/TSPP 20g/Demol N 5g/MJU-100A 5g/water 100g mixture) for press-rust preventing oil were 97% and 98% degreasing at 4wt%, 70℃ and 90℃respectively: for quenching oil, the degreasing power of ADA-6 was 94% degreasing at 4wt% and 70℃. From these results, it was confirmed that ADA-6 exhibited a good degreasing power. Foam heights measured immediately after foaming by Rose & Miles method and Ross & Clark method at 6wt%, 60℃ were 20mm and 50mm. respectively. As the result, ADA-6 was proved a good low foaming degreasing agent.
김도현,박무인,유찬희,김규종,문원,박선자,장희경 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.2
저자들은 65세 남자 환자의 위 중부체부 대만부 전벽에 발생한 점막하 종양에 대하여 3년간 추적관찰 중 크기증가소견으로 쐐기 절재술을 시행하였으며, 조직검사 및 면역 조직 화학 검사에서 위 신경초종으로 진단한 1예를 경험하였기에 보고하는 바이다. Gastric schwannoma is a very rare gastrointestinal benign tumor, which represents only 0.2% of all gastric tumors and 4% of all benign gastric tumors. We report a case of gastric schwannoma with enlargement of size through serial endoscopic examination. Endoscopic examination showed a hard mass of 4 x 3 cm in size with normal overlying gastric mucosa on the great curvature of the mid-body of stomach. The pathological finding revealed a picture of spindle cell tumor. Immunohistochemical stain was strongly positive for S-100 protein and non-reactive for CD34, C-kit and smooth muscle actin, thus leading to the diagnosis of gastric schwannoma.
위 MALT 림프종에서 다발성 림프절 전이로 오인된 동시성 림프절 결핵 1예
김성은,김규종,김도현,송준영,문대성,장리라,유찬희,문원,박무인,박선자,김영옥 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.2
28세 남자가 내시경적 점막절제술을 통해 저등급 위MALT 림프종으로 진단되었다. 병기설정을 위해 18F-FDG PET 검사를 시행하였고 우측 쇄골상부, 우측상/하부 기관주위, AP window 부위에 강한 섭취가 관찰되어 전이성 림프절로 판단하였다. 그러나, 우측 쇄골상부 림프절에서 시행한 절제생검에서 만성육아종성염증소견이 관찰되었고 조직의 결핵 중합효소연쇄반응에서도 양성 반응을 보였다. 2개월간 항결핵제의 사용 후 시행한 추적 컴퓨터단층촬영 검사에서 림프절 크기의 감소를 보여 최종적으로 위 MALT 림프종에서 광범위 림프절 전이로 오인된 동시성 림프절 결핵으로 진단되었다. A 28-year-old man was diagnosed as gastric MALT lymphoma in diagnostic EMR (endoscopic mucosal resection). He subsequently underwent an 18F-FDG PET. 18F-FDG PET showed intense multifocal uptake in right supraclavicular, right upper and lower paratracheal, and AP window areas that was considered radiologically to represent widespread metastatic lymphadenopathy. Excisional biopsy of a supraclavicular lymph node, however, revealed chronic granulomatous lymphadenitis with a positive reaction of Tb-nested PCR. After antituberculosis treatment for 2 months, a follow-up CT scan showed complete resolution of the lesions. Intense 18F-FDG uptake could be due to an infectious process such as synchronous tuberculous lymphadenitis. Therefore, this could mimic a malignant condition such as lymphoma with extensive lymph node metastasis due to a false-positive finding, which may lead to a misdiagnosis.
Park, Jong-Hwa,Chung, Dae Sung,Lee, Dong Hoon,Kong, Hoyoul,Jung, In Hwan,Park, Moo-Jin,Cho, Nam Sung,Park, Chan Eon,Shim, Hong-Ku Royal Society of Chemistry 2010 Chemical communications Vol.46 No.11
<P>We report a new class of anthracene-thiophene-based copolymers, <B>PAT4</B>. The UV-vis absorption spectrum of <B>PAT4</B> was broad and covered the full range of the solar spectrum. The hole mobility of <B>PAT4</B> was high, up to 0.037 cm<SUP>2</SUP> V<SUP>−1</SUP> s<SUP>−1</SUP>. <B>PAT4</B>-based organic solar cells showed promising power conversion efficiencies of 1.7%.</P> <P>Graphic Abstract</P><P>A new class of anthracene-thiophene-based copolymers, <B>PAT4</B>, showed excellent UV-vis absorption behaviour covering the full range of the solar spectrum. <B>PAT4</B>-based organic solar cells showed promising efficiencies. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=b921691j'> </P>