• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2011년도 추계 학술논문 발표대회
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• pp.47-48
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• 2011

According to Bali Roadmap, Korea is also included in nations with a duty to reduce greenhouse gas. This study aims to draw proper Si/Al ratio by analyzing flowing and strength properties as the 4-component low carbon inorganic composite to reduce the use of cement and discarded polysilicon sludge. As the result, when Si/Al ratio is 4, the highest strength was found.

• 약학회지
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• 제13권2_3호
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• pp.88-92
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• 1969

As a part of series of "Studies on Inorganic Chinese Drugs in Korea" four arsenic mineral Chinese drugs were analyzed by emission spectrographic method, and also were studied crystallographically by X-ray diffraction method. The following results were revealed: 1) Tang-shin-suk was not a Native arsenic but a Arsenolite which containing 94% of $As_{2}O_{3}$, 2) Toh-shin-suk was Crade Aluminum silicate 3) Woong-whang was a Realgar $As_{2}S_{2}$, 4) Yeh-suk was a Ca-Al-Silicate which was mixed with .alpha.-quartz contaminated by Iron compound and trace amount of Arsenic. It was not verified that the presence of Arsenopyrite FeAsS which has been believed as a main component of Yeh-suk by a Japanese author Wakimizu, nor the presence of Arsenolite which was reported by Masutomi.

• 한국작물학회지
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• 제60권2호
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• pp.253-256
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• 2015

This study was performed to investigate the growth characteristics and inorganic components of Codonopsis lanceolata regarding regional differences. The plant height of Japanese Codonopsis lanceolata was 373.6 cm, so it's revealed that it has more vigorous growth than Korean won. The flowering time of Korean Codonopsis lanceolata was 2 weeks faster than Japanese one. Total fresh weight of root was 41.0 g and 39.0 g for Korean and Japanese respectively, thus, no significance difference was found. However, regarding fresh weight, Korean one had a more fresh weight (35.4 g) of main root parts, but Japanese one had a more fresh weight (9.6 g) of the lateral root part. Each inorganic component was found more in the aboveground parts, regardless of the region and the content of K was the largest. Regarding the content of macroelements for each part of Codonopsis lanceolata, the content of Na, Mg, P, S, and Ca in Korean Codonopsis lanceolata was found the highest on the leaf, followed by stem and root. In the case of Japanese Codonopsis lanceolata, same result was found on the content of Mg and Ca, however, the highest content of Na and P was found in the stem.

• 대한치과의사협회지
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• 제55권2호
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• pp.128-138
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• 2017

Objective: The aim is to evaluate the potential of the mesiodens through the comparative inorganic analysis of 3rd molar teeth prior to clinical study. Material and methods: The extracted mesiodens and the 3rd molar teeth were prepared. The teeth are prepared as in the process of the autogenous tooth bone graft. Scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD) analysis was performed for inorganic analysis. Results: Rough and porous surfaces were observed in all materials in SEM analysis. Ca/P ratio of mesiodens was 1.55 and the 3rd molar was 1.22 in EDS analysis. XRD analysis shows that the 3 main peaks position were similar. This means that the graft materials are very similar to that of the crystallinity. Conclusions: The mesiodens and the 3rd molar teeth are very similar to the inorganic component. These results provide the reasonable rationale that mesiodens can be used as autogenous tooth bone graft in a clinic.

• 분석과학
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• 제11권3호
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• pp.213-221
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• 1998

Bromide, chloride, fluoride, nitrite, nitrate, sulfite, sulfate, perchlorate, chlorate 및 chlorite가 포함된 시료를 capillary zone electrophoresis(CZE)와 indirect UV detection 방법으로 분리하였다. 음이온류의 분리는 running buffer로 5 mM ammonium dichromate, 10 mM ammonium acetate, 20 mM diethylenetriamine, 10% methanol(pH 9.3)을 사용하였으며 전압은 cathode에 15 kV를 공급하였다. 또한 최초로 CZE에서 음이온의 정량이 가능하도록 각 이온들에 대한 regression과 detection limit를 결정하였고, 이 분석방법은 톨루엔을 흡입한 사람의 뇨, 부검 혈액, 폐수 및 폭약 등 시료에 적용하였으며, 음이온의 함량을 ion chromatograph(IC)와 비교 검토하였다.

• 디지털융복합연구
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• 제11권10호
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• pp.493-505
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• 2013

홍삼추출물이 혈액생화학성분, 대퇴골의 골밀도 및 골무기질 등에 미치는 영향을 알아보기 위하여 난소절제(OVX) 흰쥐에 홍삼추출물을 투여하였으며, 실험결과는 일원변량분산분석과 Scheffe의 사후검정을 통하여 분석하였다. 그 결과 홍삼추출물은 OVX군에 비하여 혈중 알부민, HDL Ca, P, Mg 및 estradiol, 골밀도, 대퇴골의 회분, Ca 및 P을 유의하게 증가시키고, 혈중 ALP, AST, ALT, 혈당, 총콜레스테롤, 중성지질, LDL, creatinine, osteocalcin 및 N-terminal telopeptide를 유의하게 감소시켰다(p < 0.01). 이상의 결과로부터 홍삼추출물은 난소절제로 저하된 간과 신장의 기능, 혈중 당, 지질 및 무기질, 골밀도, 골무기질 함량 및 골다공증관련 대사지표들을 정상수준으로 회복시켜 준다는 것을 알 수 있었다.

• KSBB Journal
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• 제24권1호
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• pp.75-79
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• 2009

Coenzyme $Q_{10}$ 고역가 변이주인 Agrobacterium tumefaciens KPU-11-03의 다양한 유기 질소원에 대한 coenzyme $Q_{10}$ 생산량과 coenzyme $Q_{10}$의 구성비율 등을 비교한 결과, CSP 첨가 시 coenzyme $Q_{10}$ 생산량은 212.7 mg/l, 구성비율은 94%로 다른 유기질소원에 비해 매우 높게 나타났다. 특히 Bacto tryptone, Bacto peptone, soybean meal, casamino acid 등의 유기 질소원 첨가 시에는 극히 낮은 coenzyme $Q_{10}$ 역가를 나타내어 균체내의 coenzyme $Q_{10}$의 축적은 유기 질소원의 종류 즉 아미노산의 종류 및 량과 상관성이 있음을 추정할 수 있었다. 또한 무기질소원에 대하여 실험한 결과, $(NH_4)_2SO_4$ 첨가 시에 coenzyme $Q_{10}$역가가 약 2배 증가하였고 다른 무기질소원에 사용 시에는 오히려 감소하였다. Coenzyme $Q_{10}$ 역가와 관련된 아미노산을 확인하기 위해 유기질소원으로 Bacto tryptone을 첨가한 배지에 9가지의 아미노산을 첨가하여 실혐한 결과, 방향족 아미노산인 tyrosine 첨가 시의 coenzyme $Q_{10}$ 생산량은 99.5 mg/l로 비첨가구보다 약 8.2배 증가하였으나 phenylalanine과 tryptophan등의 다른 방향족 아미노산의 첨가 시에는 coenzyme $Q_{10}$ 생산량이 오히려 감소하는 것으로 나타나 tyrosine의 첨가가 coenzyme $Q_{10}$ 역가에 매우 중요함을 확인하였다.

• 대한화학회지
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• 제55권5호
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• pp.787-793
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• 2011

An efficient three-component one-step synthesis of 2,4,5-trisubstituted imidazoles by condensation reaction of 1,2-diketones or ${\alpha}$-hydroxyketones with aromatic aldehydes and ammonium acetate using Zinc (II) [tetra (4-methylphenyl)] porphyrin as a novel and reusable catalyst under ultrasound irradiation at ambient temperature is described. In this method, ${\alpha}$-hydroxyketones as well as 1,2-diketones were converted to their corresponding 2,4,5-trisubstituted imidazoles in excellent yields.

• 한국세라믹학회지
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• 제36권5호
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• pp.459-464
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• 1999

A carbon-containing silica glass was prepared from orgaincally modified silicate(Ormosil) by heat treatment in N2 atmosphere after the ormosil was synthesized using sol-gel method. The Ormosil was fabricated from the TEOS as the inorganic component and the PDMS as the organic component. The Ormosil changed to balck-coloured glass by carbon decomposed from the PDMS when the Ormosil was heated to 450$^{\circ}C$ 20hrs. A dense silicon oxycarbide glass with 2.08 g/cm3 was obtained by heating the Ormosil at 1050$^{\circ}C$ 10hrs. The microstructure of the carbon-containing silica glass was observed by SEM and the SiOxC4-x structure was confirmed by XPS measurement. The densification of the glass was studied by measurements of specific surface area linear shrinkage and geometric density.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2006년도 하계학술대회 논문집 Vol.7
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• pp.517-518
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• 2006

In this paper, to understand the effect of forest fires on polymer insulators for transmission lines, it was observed the aging of the housing surface of the polymer insulators. And, this paper shows the way how to create the artificial field testing in order to simulate forest fire. As the results of, maximum leakage current peaks by influence of flame increased from 1[mA] to 1.4[mA], and SEM results show the inorganic component on the housing surface because the organic component matters disappeared. Therefore, the case of exposed by forest fire, polymer insulator can be used in the early stage, but an exchange needs active countermeasure to be stabilize power delivery.