• 한국염색가공학회:학술대회논문집
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• 한국염색가공학회 2009년도 학술발표대회
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• pp.73-74
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• 2009

• Asian Pacific Journal of Cancer Prevention
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• 제14권7호
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• pp.4089-4093
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• 2013

Objective: The rhabdomysarcoma (RMS) is most common soft tissue carcinoma in children, mostly found in the head and neck with high degree of malignancy. The current study aimed to summarize clinical data and evaluate treatment outcome of cases in a single hospital. Methods: Forty-one (24 male, 17 female) children with newly diagnosed RMS in Beijing Tong Ren Hospital were enrolled between November, 2004 and May, 2011. The. Students' t and Chi tests were then performed on retrospectively reviewed clinical data, followed by survival analysis based on the Kaplan Meier method using SPSS 17.0 software. Results: Of all cases, 32 were treated by common chemotherapy, and 3 cases with stage III RMS received high-dose chemotherapy and auto-peripheral blood stem cell transplantation (APBSCT). Side-effects in the former were: I grade for 62.5% (20/32), II grade for 28.1% (9/32), III grade account for 9.275% (3/32). Side-effects of 3 cases with APBSCT: 2 were I grade, 1 was III grade. The median follow-up time of 41 RMS cases was 41 months. Four cases were lost to follow-up, 7 cases recurred, and 5 cases died of cerebral metastasis, witha total survival rate was 86.5% (32/37). CR rate was 67.6% (25/37), PR was 18.9% (7/37). Conclusion: Multidiscipline treatment including chemotherapy, radiotherapy, surgery and auto-PBSCT is highly recommended for pediatric patients with head and neck RMS.

• 한국재료학회지
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• 제25권11호
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• pp.590-597
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• 2015

In this article, poly methyl triethoxy silane was compounded with an inorganic waterproof admixture at a certain ratio to improve the performance of gypsum products; a new type of high-efficiency compound water-proofing additive was also investigated. Furthermore, the waterproof mechanism and the various properties on the hardened gypsum plaster were investigated in detail by XRD and SEM. The results show that the intenerate coefficient of gypsum plaster increased to more than 0.9; the water absorbing rate decreased to less than 10 %. Both the bending strength and the compressive strength of gypsum plaster increased by various degrees. The intenerate coefficient reached a maximum value of 0.73 and the strength of the samples showed almost no change when 5% cement alone was added. In this new type of the high-efficiency compound with waterproof additive, the optimal technological parameters for formulas were obtained to be: 5% cement, 18 % mineral powder, and 0.8% poly methyl triethoxy silane, to compound gypsum plaster. Meanwhile, the production of high performance gypsum as a building material has become possible.

• 한국초전도학회:학술대회논문집
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• 한국초전도학회 2008년도 High Temperature Superconductivity Vol.XVIII
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• pp.2-2
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• 2008

• KSTLE International Journal
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• 제4권1호
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• pp.27-30
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• 2003

The basic principles of tribo-systems and study method based on tribe-systems are introduced in the paper, Based on the viewpoint of tribe-systems, the experiment on tribology characteristics of friction lining material in multi-rope friction hoist is carried out. The research result shows: tribology characteristics of friction material are not its inherent characteristic but system characteristics of the tribo-systems, the“sliding-rope”of multi-rope friction hoist can be divided into“safety sliding-rope”and“fault sliding-rope”, study on friction material only based on characteristic of system where friction material exists possesses practical significance.

• Bulletin of the Korean Chemical Society
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• 제30권10호
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• pp.2208-2212
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• 2009

Oxidation of cycloalkenes with $O_2$ promoted by heterogeneous bis(acetylacetonato) cobalt (II) complex catalyst which can be recycled has been performed under mild conditions. It was found that $\beta$-ionone, cyclohexene, 1-methylcyclohexene, and $\alpha$-ionone were efficiently oxidized with $O_2$ in the presence of Co (II) complex and butyraldehyde at $55\;{^{\circ}C}$. A simple treatment of the resulting products led to epoxides as predominant products and a small amounts of allylic oxides, the chemoselectivity for the former being 82.1 - 90.8% with a 70.6 - 98.6% substrate conversion. On the other hand, oxidation of 1-phenylcyclohexene, 1-cyclohex-1-enylethan-1-one, $\alpha$-pinene, and $\beta$-pinene gave allylic oxides as major products.

• Bulletin of the Korean Chemical Society
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• 제30권3호
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• pp.687-690
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• 2009

A series of novel 1,3-diallyltrisulfane analogues were synthesized and assayed in vitro for antimicrobial activity against Gram positive, Gram negative bacteria and fungi. The antimicrobial activity of the 1,3-diallyltrisulfane derivatives showed, on the whole, very potent towards all the tested Gram positive, Gram negative and fungi (MIC ranging from 4 to 256 μg/mL). 1,3-Di(pent-4-enyl)trisulfane 3b and 1,3-bis(3-methylbut-2-enyl)trisulfane 3e exhibited the strongest antibacterial activity among all the compounds, and both of them were more active than 1,3-diallyltrisulfane (DATS). Results indicated the relationship of either carbon number or lipophilicity with antimicrobial activity presented “V” shape. These observations provided some predictions in order to further design 1,3-diallyltrisulfane derivatives with antimicrobial activity.

• Archives of Pharmacal Research
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• 제29권11호
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• pp.957-962
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• 2006

A novel series of 2-(m-Chlorobenzyl)-4-substituted-1, 1, 3-trioxo-2H, 4H-pyrazolo[4, 5-e][1, 2, 4] thiadiazines (7a-k) were synthesized, and evaluated for their anti-HIV replication in MT-4 cell cultures. Compound (7a) showed activity against HIV-1-induced cytopathicity, with an $EC_{50}$ value of $45.6\;{\mu}M$, but none of the compounds exhibited inhibitory activity against HIV-2.

• 한국철학논집
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• 제57호
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• pp.31-55
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• 2018

도원(道原) 류승국(柳承國: 1923~2011) 교수는 20세기 한국 동양철학계의 거장이었다. 또 '한국사상의 원형(原型) 정립'에 심혈을 기울였던 '한국철학'의 개척자였다. 학문의 뿌리는 '유학'이었지만 동양철학 전반에 걸쳐 폭넓게 연찬하였다. 류 교수는 '유교사상이 어떻게 형성되었는지'에 대하여 남다른 견해를 보였다. 그는 1970년 이전에 나온 고고학-특히 갑골학- 의 연구 성과와 종래의 문헌에서 말했던 내용을 정밀하게 비교 분석하는 작업을 다년간 수행하였다. 그 결과 "유학사상 형성의 근원을 논함에 있어 동이족과의 관계를 분리하여 생각할 수 없다"는 결론을 얻었다. 유교는 동이와의 관계 속에서 형성되었다는 것이다. 그가 동이족-인방족(人方族)에 대해 주목한 것은 '동이족과 그 문화'를 살피는 데 목적이 있었던 것이 아니다. 유교사상이 어떻게 형성되었고, 그 과정에서 동이족과 어느 정도 관련성이 있었는지를 고찰하는 데 목적이 있었다. 이것은 그가 의도했던, 의도하지 않았든 간에 '한국사상의 원형'을 탐색하는 작업과도 맞물려 있었다. 류승국 교수의 설은 당시는 물론 현재까지 학계의 통설과 다르다. 아직까지 학계에서 정면으로 논한 적이 없음은 아쉬운 일이다. 중국의 동북공정(東北工程)이 노골화한 이 시점에 류승국 교수의 학설을 진지하게 검토하는 것이 필요하다고 본다.

• Environmental Engineering Research
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• 제25권4호
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• pp.536-544
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• 2020

To address organic dye wastewater, economic and effective adsorbents are required. Here, magnetic biochar from alkali-activated rice straw (AMBC) was successfully synthesized using one-step magnetization and carbonization method. The alkaline activation caused the large specific surface area, high pore volume and abundant oxygen-containing groups of the AMBC, and the magnetization gave the AMBC a certain degree of electropositivity and fast equilibrium characteristics. These characteristics collectively contributed to a relative high adsorption capacity of 53.66 mg g^-1 for this adsorbent towards rhodamine B (RhB). In brief, RhB can spontaneously adsorb onto the heterogeneous surface of the AMBC and reach the equilibrium in 60 min. Although the initial pH, ionic strength and other substances of the solution affected the adsorption performance of the AMBC, it could be easily regenerated and reused with considerable adsorption content. Based on the results, H-bonds, π-π stacking and electrostatic interactions were speculated as the primary mechanisms for RhB adsorption onto the AMBC, which was also demonstrated by the FTIR analysis. With the advantageous features of low cost, easy separation, considerable adsorption capacity and favorable stability and reusability, the AMBC would be a potential adsorbent for removing organic dyes from wastewater.