전산유체해석을 이용한 자동차용 AQS 시스템의 유로구조 설계

최종필,김병희,최우석,김시동,민준원,유승을 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-

In recent years, concern among car users about air quality inside car cabins has been steadily increasing. A vehicle exhaust gases such as carbon monoxide(CO) and nitrogen oxides(NOx) entering the cabin not only reduce the quality of experience for everyone in the car, but are also harmful to the health. Therefore, an air quality sensor(AQS) system which can perform this function is issued. In this paper, the design of channel structure for automotive AQS system was studied by computational fluid dynamic analysis according to the design parameters such as the number of air inlet, membrane porosity and permeability. Form simulation results, the AQS system was developed and the performance test was conducted.

영아에서 발생한 골수섬유증 1례

최성민,이동석,권경배,김두권,김나연,원유흥,이준희,권영무 동국대학교 경주대학 1996 東國論集 Vol.15 No.-

특발성 골수섬유증은 만성 골수증식성 질환의 하나로 말초혈액도말에서 백적아구증, 부동변형적혈구 눈물방울세포 소견을 보이며, 골수 생검상 망상 섬유와 교원섬유로 구성된 섬유조직이 증가하는 골수의 섬유화 소견을 보이며, 골수외 조혈작용으로 인한 대상적 비장·간장 종대를 특징으로 하는 소아에서는 극히 드문 질환이다. 저자들은 본원에 복부종괴와 안면창백으로 입원하였던 8개월된 남아에서 임상증상, 말초혈액검사, 골수생검에서 특발성 골수섬유증으로 진단되어 Methylprednisolone 대량 정주 요법으로 치료하였으나 진단7개월만에 패혈증과 심부전으로 사망했던 1례를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Idiopathic myelofibrosis is a chronic myeloproliferative disorder characterized by anemia, leukoerythroblastosis, anisopoikilocytosis, tear-drop cell, extramedullary hematopoiesis with hepatosplenomegaly and varying degrees of myelofibrosis of bone marrow. The mean age is about 60 years, and pediatric cases are rare. We experienced a case of idiopathic myelofibrosis in a 8 months old male who was presented with pallor, huge splenomegaly, leukoerythroblastosis in peripheral blood, myelofibrosis in bone marrow biopsy. We presented a case of idiopathic myelofibrosis with brief review of the literatures.

膈下逐瘀湯과 膈下逐瘀湯合四君子湯의 抗癌 및 免疫調節作用에 關한 實驗的 硏究

崔昇勳,安圭錫,文濬典,高光錫 대한동의병리학회 1994 동의생리병리학회지 Vol.9 No.1

연구배경 : 암은 사망의 주요 원인이 되는 질환으로 매년 증가하고 있는 추세이다. 이에 mouse에 암을 유발하여, 약물치료를 시행함으로써 높은 치료효과를 거두는 한약제재를 개발하여 암의 치료에 기여하고 아울러 근본적인 예방치료에 대한 새로운 방법을 제시하고자 함. 방법 : 생쥐에 Sacroma 180을 이식하여 복강암을 유발하고 격하축어탕 및 격하축어탕합사군자탕을 투여하여 생명연장률과 B cell 및 T cell, 혈청항체가, 임파구증식반응, IL-2 생산능 및 자연살해페소의 활성도를 측정하였다. 결과 : 격하축어탕과 격하축어탕합사군자탕은 면역조절작용을 통한 항암효과가 있을 것으로 생각되며, 활혈거어제인 격하축어탕과 보기제인 사군자탕을 합방했을때, 그 효과가 증가되었다. In order to investigate the effects of Gyeokhachukeotang and Gyeokhachukeotang plus Sagunjatang on anti-tumor and immunodulatory reaction to the ICR and C57BL/6 mice which have abdominal tumor after Sarcoma-180 cells were transplanted, the extracts of herbal medicines above mentioned were orally administered to the mice for 21 days to observe the extention of survival duration of the mice, quantitation of T cells and B cells, productivitiy of interleukin-2, lymphocytes transformation, hemagglutinin titer and hemolysin titer and activity of splenic natural killer cells. The results are summarized as follows; 1. In the effect of life extention, the Gyeokhachukeotang-medicated mice group inclined to show extended duration of life, which is of no great significant difference and the mice group medicated with mixture of Gyeokhachukeotang plus Sagunjatang appeared to survive longer than the Gyeokhachukeotang-medicated mice group, which is not meaningful. 2. Considering T cell and B cell content, the Gyeokhachukeotang-medicated mice group had a meaningful increase in B cell (P<0.05) content, and the mice group medicated with the mixture of Gyeokhachukeotang plus Sagunjatang remarkably showed a significant increase in both T cell and B cell (P<0.01). 3. Considering serum antibody titer tended to increase in case of the Gyeokhachukeotang-medicated mice group, which is of no significant difference, while decreasing in case of the mice group medicated with mixture of Gyeokhachukeotang plus Sagunjatang. 4. In lymphocyte transformation marked a significant increase the Gyeokhachukeotang-medicated mice group, marked a significant (P<0.01), and remarkably showed a significant increase the mice group medicated with the mixture of Gyeokhachukeotang plus Sagunjatang (P<0.001). 5. As for the productivity of interleukin-2 and the activity of NK cells, the both tested groups inclined to show an increase or a decrese, but there is no significance.

景福宮·昌德宮·點景物 紋樣에 관한 硏究

최준형,이석래,이재근 한국정원학회 2002 한국전통조경학회지 Vol.20 No.1

The purpose of this study is to present basic materials on garden ornaments and their symbolism in traditional spaces. The subjects for this study are the Kyongbok Palace and the Changduk Palace that were the palaces of the Chosun Dynasty. The patterns of the garden ornaments in those palaces were investigated by comparison with past literature and traditional pattern collections. The findings of the research are as follows. Animal patterns were found on most of the stone statues and symbolized the expulsion of evil and the protenction of the King. They were used mainly in King’s Palace to emphasize the expulsion of evil and the protection of the King in official ceremonies. A stone mortar filled with water was used as a mirror and stonework, stone pedestals, chimneys, and stone boxes were mainly decorated with botanical patterns and used a lot in the royal villa and the living space for praying for the luck the user of the space. As shown above, there was a close correlation to space, the type of garden ornament, classification, and the symbolism of the patterns. A stepping stone used in mounting or dismounting a horse was used practically rather than ornately and there was usually no special ornament on the stone. However, on the stepping stone in the Sujung Annex, a decorated lotus pattern symbolized creation and prosperity with the purpose of calming the minds of the ministers. There were grass and flower patterns on only three sides of the stone box of Yonkyung Hall and therefore, it was considered functional and practical. The flag pedestal that measured the direction and velocity of the wind by using a flag was decorated with a wave pattern to sttongly emphasize the government. The stone mortar of Okrychun where common people enjoyed their lives and partied showed no special patterns and was located in the waterway to divert the flow of the water.

순천향대학교 천안병원에 입원한 로타바이러스 감염 위장관염 환자의 임상양상

최석주,전세윤,김승수,박경배,김용배,박준수 순천향의학연구소 2006 Journal of Soonchunhyang Medical Science Vol.12 No.1

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족관절 내과골절에서 피질골 나사못을 이용한 변형된 긴장대 고정술

최호림,도현우,김병흠,김규현,박종석,송준민 대한골절학회 2004 대한골절학회지 Vol.17 No.4

목적 : 전위된 족관절 내과골절에 대해 피질골 나사못을 이용한 변형된 긴장대 고정술을 이용한 치료결과를 분석해 보고자 하였다. 대상 및 방법 : 2001년 1월부터 2003년 1월까지 전위된 내과골절에 대해 변형된 긴장대 고정술을 시행 받고 최소 1년 이상 추시관찰 가능 하였던 24례를 대상으로 하였다. 남자 13례, 여자 11례로 평균 연령은 46세였다. 골절은 Lauge-Hansen 분류법을 사용하였으며, 결과는 Meyer와 Kumler의 평가 방법을 이용하였다. 결과 : 13례 (54%)에서 우수의 결과를 얻었고, 9례 (38%)에서 양호의 결과를 얻었으며, 운동범위의 제한이 발생한 1례에서 보통, 후외상성 관절염이 발생한 1례에서 불량의 결과를 얻었다. 결론 : 전위된 족관절 내과골절에서 피질골 나사못을 이용한 변형된 긴장대 고정술은 견고한 내고정과 조기 관절 운동이 가능한 효과적인 수술 방법이 될 수 있을 것으로 사료된다. Purpose : To evaluate the clinical results of modified tension band wire technique using cortical screw for treatment of displaced medial malleolar fractures of the ankle. Materials and Methods : From January 2001 to January 2003, 24 patients were treated by modified tension band wiring using cortical screw for medial malleolar fracture. The follow-up period was 12~35 months (average 18 months). There were 13 males and 11 females, and the mean age was 46 years. Fractures were classified by Lauge-Hansen's classification. The results were analyzed by Meyer and Kumler's criteria. Results : There were 13 cases (54%) of excellent, 9 cases (38%) of good, and one case of fair because of limitation of motion of the ankle joint and one case of poor which showed post-traumatic arthritis of the ankle. Conclusion : Modified tension band wire technique using cortical screw can be an effective operative method for the treatment of displaced medial malleolar fractures of the ankle.

넙치의 백화현상 규명에 관한 연구 : Ⅰ. 멜라닌 색소 생성에 미치는 효소와 기질의 영향 Ⅰ. Effects of Enzyme Activities and Substrates on Melanin Formation

최영준,강석중,조창환,명정구,김종현 國立統營水産專門大學 附設 水産科學硏究所 1990 수산과학연구소보고 Vol.2 No.-

멜라닌 색소의 생합성 과정에 관여하는 것으로 알려져 있는 효소 및 관련 인자와의 상관성을 검토하기 위하여 자연산 정상넙치와 양식산 백화넙치의 肉質과 表皮, 미립자 사료와 생물먹이인 Artemia 및 Rotifer에 대하여 단백질의 함량, 멜라닌 색소생성에 고나여하는 효소의 활성, 아미노산 조성 및 비타민A와 C의 함량을 비교하였다. 정상넙치表皮는 肉質에 비하여 단백질의 함량이 높았으나, 백화넙치인 경우는 대체로 비슷한 값이었다. 사료중의 단백질 함량은 미립자 사료 중 C1이 가장 높았다. catechal oxidase의 활성은 기질과 조효소 농도의 증가와 더불러 증가하였으며, 백화 유무에 관계없이 거의유사한 값으로 나타났다. 그리고 L-dopa oxidase활성도 동일한 결과였다. 정상넙치의 유리아미노산 함량은 백화개체에 비하여 높았으며, 表皮의 경우는 정상넙치가 백화너치에 비하여 7.5배 가량 높은 값을 나타내었다. 필수아미노산의 조성으로 비교했을 때, 미립자 사료는 Artemia와 Rotifer보다 우수한 단백질원이었다. 그리고 정상넙치의 함활아미노산의 함유량은 백화넙치의 6.3배에 달하였다. 비타민A는 정상 및 백화넙치의 肉質과 表皮에서 검출되지 않았으나 비타민C는 정상인 접치表皮가 백화넙치 表皮에 비해 약 7.8배였으며, 미립자 사료는 100.83mg/100ㅎ으로서 사료 중 가장 높았다. 따라서 넙치表皮의 멜라닌색소의 생성에는 기질인 방향족 아미노산과 함황아미노산이 큰 영향을 미치는 것으로 판단되었다. The albinic phenomenon of flat-fish (Paralichthys olivaceus) was investigated by measuring protein content, tyrosinase activity, amino acid composition, and contents of vitamin A and C. These materials in the flat-fish feed-stuff were also tested. The amount of skin protein was higher than that of muscle in normal flat-fish. Catechol and L-dopa oxidase activity did not differ between normal and albinic flat-fish. The free amino acid of skin in normal flat-fish was 7.5 times that in albinic one. Sulfur-containing amino acid in normal flat-fish was also 6.3 times that in albinic ones. Vitamin A was not detected in both of flat-fish. The content of vitamin C in normal flat-fish was 7.8 times that in albinic one. The contents of protein, sulfur-containing amino acid and Vitamin C in micro-encapsulated feed (one commercial feed in Japan) were the highest among the feed-stuff used in this experiment. The melanin formation of flat-fish skin was affected by substrates such as aromatic amino acid and cofactor such as sulfur amino acid.

단순 외상 환자에서 퇴원시 설명문이 환자의 이해도에 미치는 영향

장석준,정상원,최성욱,황태식,이한식 대한응급의학회 1996 대한응급의학회지 Vol.7 No.2

The many previous publications have shown the advantages of written discharge instruction over verbal discharge instruction on the basis of comparing the functional illiteracy among emergency department patients. Therefore, authors have conducted a study on the efficacy of written discharge instruction over the verbal discharge instruction of two groups: minor laceration and sprain patients. For the purpose of this study, minor laceration is defined as less than 3 ㎝ laceration on the face or head, or less than 5 ㎝ laceration on extremities. And simple sprains were limited to the extremities. A total of 416 patients who visited Yong Dong Severance Hospital Emergency Care Center were the subject of this study during the period of 2 months from Feb. 1. to Mar. 31. 1996. The study was done prospectively, and patients who entered this study were randomly selected. Simple discharge instruction were made prior to the study and patients were given or verbally told the one of two instruction sets by the emergency medicine resident. After reading or hearing the instructions, each patient was asked to answer four specific questions about them. Statistical significance was examined by t-test and p value of 0.05 or less was considered statistically significant. Mean age for verbal and written instructed group were 26.2 and 25.6 years old. There were 262 and 154 patients in verbal and written instructed group, and the mean score was 2.24±1.20 and 3.42±0.52, respectively. The type of injury was divided into laceration and sprain. Laceration group showed mean score of 2.15±1.23, 3.32±0.51, and sprain group of 2.34±1.16, 3.59±0.50 in verbal and written instruction group, respectively. For the patient younger than 13 years old, discharge instruction was given or described to a guardian. Age less than 13 years old group showed mean score of 2.75±1.11, 3.31±0.48 and more than 13 years old group of 2.10±0.19, 3.34±0.53 in verbal and written instruction group, respectively. The result showed statistical significance between verbal and written instruction group of type of injury and age difference. For the future, simplified written discharge instruction may help and improve the patient`s understanding of the proper management of injury.

사회환경교육의 교육과정 표준화 모형 및 통합프로그램 개발연구

박석순,최돈형,성효현,허명,강명희,이숙임,남상준 이화여자대학교 환경문제연구소 1998 이화환경연구 Vol.2 No.-

This paper presents the development of standardized modules and an integrated program which will be used for social environmental education. The study objectives are to develop modules which are based on various environmental topics, to relate the regional environmental topics to the educational modules and program, and to include the demand of students in the modules and program. Literature and questionary surveys, as well as, module development method were utilized as research tools. The titles of developed modules are "The Green Plant Earth," "Unexpected Resources: Save Resources and Recycle", "Water as the Mother of All Lives", "The Blue Sky with Clean Air", and "Soil as the Home of All Living and Non-living Things". It is hoped that the developed modules and program are utilized as course materials and curriculum for social environmental education in various educational institutes. The study results will be materialized as multimedia in near futher.

폴리스타이렌 아이오노머와 액정중합체 블렌드의 기계적 성질

김희석,김준섭,최재곤,박기주,윤용국,진정일 조선대학교 생산기술연구소 1997 生産技術硏究 Vol.19 No.1

The dynamic mechanical properties of thermotropic liquid crystalline polyester (LCP) blends with polystyrene (PS) and Li sulfonated polystyrene (PSSLi) were investigated. It was found that PS forms an immiscible blend with LCP. However, above the matrix T_(g) of the PS, the addition of the LCP increases the modulus of the blend significantly because the LCP acts as filler below its T_(g). In PSSLi/LCP blend system, it was also found that, in the temperature range between two T_(g)s of the ionomer, the LCP acts as filler and thus increases the modulus of the blend. However, the filler effect of the LCP on the modulus decreases rapidly with increasing temperature and disappears above the T_(g) of the LCP. Finally, it was suggested that the PSSLi may be partially miscible with the LCP via ion-dipole interactions between a Li^(+) cation of the PSSLi and a carbonyl group of the LCP.