묘지 조성사업지의 비탈면 보호공법에 관한 연구(Ⅰ) : 강릉시 시범 공설묘지 조성사업을 중심으로

전근우,유남재,차두송,이명종,박완근,한상균 강원대학교 삼림과학연구소 2000 Journal of Forest Science Vol.16 No.-

강릉시 시범 공설묘지 조성사업은 경사 30˚ 의 표고차가 심한 산지를 절 · 성토하여 계단식 묘역단을 조성하는 공사로 수직고 15m이상의 대절토 및 성토부가 산재하고 있다. 특히 묘역단장후 주변 유입수 및 표면 유출수에 의한 비탈면 붕괴, 묘역단 유실 등의 피해가 발생할 경우 보수 또는 보강이 사실상 어려운 실정이며, 사회적 여론으로 확대될 가능성이 크므로 비탈면 보호에 필요한 녹화공법을 검토하였다. 구체적인 연구내용으로는 설계도면 및 현장답사를 통한 문제 비탈면 추출, 비탈면의 물리적 특성과 식생의 생육상황 파악, 비탈면 주변부의 식생조사와 유용식생 선발, 비탈면의 토양조건 분석 및 비탈면 토사의 기본물성 조사 등이며, 이를 기초로 하여 비탈면 현황 및 문제점을 파악하고, 그 대안을 제시하였다. The construction of a public cemetery in Kangnung city includes terraced graveyard with cutting or banking in mountain which has severe altitude differences with a slope of 30˚. Therefore, there are scattered cutting and banking sections with vertical height more than 15m. Especially, if the slope failure or the loss of a graveyard happens after graveyard establishment due to surface flow and inflow around, it is difficult to repair, causing serious public censure. Accordingly. revegetation works were examined that need protection of slope. The specific content of the study was the selection of slopes requiring special care through blueprint and field investigation the measurement of the physical property of slope and the situation of vegetative growth, the investigation of vegetation in slopes and the selection of vegetation, and the analysis of soil condition of slopes and the physical condition of slope sediment. On the basis of investigations some alternatives were proposed.Key words: public cemetery, slope protection works, revegetation works

임계점에 따른 다양체의 어떤 성질에 대한 소고

전동검,정완수 순천향대학교 기초과학연구소 1995 순천향자연과학연구 논문집 Vol.1 No.1

In this note we first recall the basic definition of non-degeneracy, next introduce the concepts and properties of non-degenerate critcal point an relation of structures on finite-dimensional manifold. In particular, we proved the following theorem that if M is a ι-dimensional manifold. critcal point ?? of f, index λ of mapping f : M→R, then tere exists imbedding : ??

日本의 海岸砂防에 관한 연구(II) : 沖繩縣의 海岸保安林을 중심으로;On Seaside Protection Forest in Okinawa Prefecture

全槿雨,李在善,朴完根,幸喜善福,中島勇喜,江崎次夫 江原大學校 森林科學硏究所 2004 Journal of Forest Science Vol.20 No.-

우리나라에 있어서 海岸林의 多面的 機能과 時代的 價値觀의 변화를 파악하고, 海岸砂防의 참고자료를 얻기 위해 일본의 海岸林과 海岸砂防에 대한 각종 자료를 수집·분석하고 있다. 전보(全槿雨 등, 2002)에 이어 日本 沖繩縣의 海岸防災林을 중심으로 海岸林의 槪要, 海岸保安林의 實態와 각 島嶼別 주요 海岸砂防用 樹種 및 대표적인 海岸保安林에 대하여 분석·정리하였다. Management system of coastal erosion-control forest in Japan together with coast sand dune fixation and stabilization were investigated and analyzed to introduce to Korean researchers the many-sided importance and function of coastal forest and its chage from the standpoint of social value. In this study some suggestions and ideas were proposed for establishment of coastal forest including some suggestions and idea were proposed for establishment of coastal forest including seaside protection forest characteristics and tree species for coastal dune fixation, based on the analysis of date which were collected from the seaside protection forest in Okinawa Prefecture in Japan.

예체능 심화과정 학생들의 기능 변화에 대한 연구

이완섭,김춘선,김정희 춘천교육대학교 예체능교육연구소 1996 예체능교육연구 Vol.1 No.-

캡사이신유도체를 함유하는 폴록사머 겔제제의 물리화학적 특성 : based Gel Containing Capsaicin Analog

김태완,조청일,최춘영,이범진 한국약제학회 2003 Journal of Pharmaceutical Investigation Vol.33 No.1

Physicochemical changes of poloxamer-based gel containing capsaicin analog (N-[3-(3,4-dimethylphenyl)propyl]-4-(2-aminoethoxy)-3-methoxypheny] acetamide) such as drug content, viscosity and surface tension were investigated during the storage conditions at three different temperatures (25, 40 and 60℃) over 90 days. No noticeable changes of color were observed when stored at 25 and 40℃. However, the color of white poloxamer gels turned yellow during storage at 60℃. The drug contents were unchanged during storage at 25℃ but had tendency to decrease at 40℃. The drug contents were highly decreased over 40-50% when stored at 60℃. The viscosity of a poloxamer-based gel was unchanged during storage at 25 and 40℃ but greatly increased at 60℃. The surface tension of a poloxamer-based gel was not changed at three different temperatures. The storage conditions of a poloxamer-based gel containing capsaicin analog can be considered for further clinical applications.

석탄회를 이용한 제올라이트의 합성과 중금속 흡착 특성

류완호,이원묵,홍필선,양천희,안재영,백일현,이병노 한국화학공학회 2003 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.41 No.5

석탄회를 이용, 중금속 제거용 흡착제 제조를 목적으로 NaOH를 반응물로 한 수열합성 반응으로 제올라이트를 합성하였으며, 이에 대한 성능특성 및 중금속 흡착실험을 수행하였다. SiO₂와 Al₂O₃를 주성분으로 한 석탄회를 NaOH에 의한 수열합성 반응으로 폐수 중에 포함되어 있는 중금속에 대한 제거능력이 높은 제올라이트를 합성하고자 하였다. 따라서 NaOH 농도, 시간을 변화시키면서 제올라이트를 합성하여 실험한 결과 4 M-NaOH, 4시간에서 최적의 조업조건을 얻을 수 있었다. 산에 의한 전처리 과정을 거친 합성 제올라이트는 pH 7-9.5로 중성을 나타내었다. 또한 산처리 합성 제올라이트를 이용하여 중금속인 P, Pb, Cd, Cr, Mn등의 흡착능을 비교한 결과 P, Pb, Cd 등은 비교적 흡착능이 우수하게 나타났지만 Cr과 Mn 등은 pH가 너무 높기 때문에 거의 흡착이 이루어지지 않았다. Zeolite was synthesized from coal fly ash produced by a domestic power plant and has applications in the removal of heavy metal from waste water. Zeolite was synthesized using a hydrothermal method involving an alkaline reaction with NaOH. The NaOH concentration and reaction times were varied in order to synthesize zeolite showing the maximum removal efficiency of heavy metal from waste water. The synthesis conditions were optimized at the concentration of 4M-NaOH and the reaction time of 4hn. The synthesized zeolite needed washing with HCI solution to improve the removal efficiency of P, Pb. Cd. Cr. Mn and it was maximized at pH 7-9.5 in leaching solution of synthesized zeolite.

상피성 난소암에서 항암약물요법(CT 또는 PT)과 ATP-CRA검사의 연관성

이천준,김원규 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.4

Background: The behavior of cancer can be very varied with different individual responses to chemotherapy. Individualization is crucial to the optimization of chemotherapy. The individualized chemotherapy sensitivity test has been introduced to help in the selection of the appropriate drug for each individual patient but disappointing results achieved with old chemosensitivity tests. The development of the adenosine triphosphate based chemotherapy response assay(ATP-CRA) was designed to overcome the limitations of many in vitro chemotherapy sensitivity tests. The aims of this study were to predict accurately the ATP-CRA and a patient's clinical response to chemotherapy(CT(carboplatin, paclitaxel), PT(cisplatin, paclitaxel)) in epithelial ovarian cancer and to assess the clinical efficacy of the ATP-CRA. Materials and Methods: The study was performed on 34 patients who is diagnosed initially the epithelial ovarian cancer for chemotherapy after operation at Gospel hospital of Kosin university between March 2005 and December 2007. The ATP-CRA was evaluated the chemosensitivities of nine anticancer drugs for epithelial ovarian cancer. To investigate the correlation between ATP-CRA and clinical outcomes in patients with epithelial ovarian cancer, it was compared the clinical responses with the results of CSA retrospectively. Statistical analysis was performed using the Fisher's exact test. Results: The mean chemosensitivity index(CI) tested by the ATP-CRA, were 186.4(carboplatin), 167.9(cisplatin) and 194.1(paclitaxel) respectively. The Cisplatin showed the most effective effect. The sensitivity and specificity of ATP-CRA were 96.4% and 50.0%. The positive and negative response prediction values were 90.0% and 75.0%. The accuracy rate was 88.2%. There was a significant relationship between the results of ATP-CRA and clinical responses(p=0.04). Conclusions: This study shows that ATP-CRA could be used clinically to predict chemoresponse in epithelial ovarian cancer. However, prospective randomized clinical trials in a larger patient cohort are warranted to confirm the clinical correlation of ATP-CRA.

흰쥐 간의 재생에 관한 세포화학적 연구

길영천,김완종,한상철 순천향대학교 기초과학연구소 1998 순천향자연과학연구 논문집 Vol.4 No.2

The present study was designed to evaluate the regeneration process, the localization of metallothionein(MT) and alkaline phosphatase(ALP), and the liver function during the liver regeneration of rat. The weight of control rat liver was about 4.3% of body weight. But after hepatectomy, the remaining liver weight was about 1.3% of body weight. The remaining liver seemed to begin regenerating at 24 hours after partial hepatectomy, and to complete at 7∼10days after hepatectomy. In control rat liver, metallothionein(MT) was scarcely found in the cell. But MT was found in both the cytoplasm and the nucleus of hepatocyte at 6 hours after hepatectomy, and MT reaction was found in the cytoplasm of liver at 24 hours after hepatectomy. From 5 days after hepatectomy, MT reaction became weak in the cytoplasm of hepatocytes. In control rat liver, the reaction products of alkaline phosphatase(ALP) were scarcely found in the nucleus. But in the experimental group, ALP was found at the membrane of hepatocyte contacted with the lumen. Activities of glutamate oxaloacetate transaminase(GOT) and glutamate pyruvate transaminase (GPT) of serum increased until 24 hours after hepatectomy, then returned to the normal level in about 2 days after hepatectomy. In conclusion, It is suggested that regenerating hepatocytes reveal characteristics of typical cell proliferation and carry out normal function.

인공 제올라이트를 이용한 암모니아성 질소 등온흡착특성

류완호,이원묵,박성하,양천회 한밭대학교 에너지청정기술연구소 2004 에너지청정기술논문집 Vol.4 No.1

국내 석탄화력 발전소에서 폐기되는 석탄회를 이용하여 폐수 중 암모니아성 질소 제거용 흡착제를 제조하고자 NaOH를 반응물로 한 수열합성 반응을 이용, 제올라이트를 합성하였으며 제조된 제올라이트를 실제공정에 활용하기 위하여 흡착실험 및 공정모사를 수행하였다. 또한 흡착제를 구형으로 제조하여 암모니아성 질소의 등온 흡착 공정에 이용하였으며 이 결과 Langmuir, Freundlich 및 Sips 식에 잘 일치함을 알 수 있었다. 고정층에서의 흡착 거동은 축 방향 분산흐름, 입자 내부에서의 표면확산 및 Sips 흡착 등온식을 바탕으로 한 고정층 흡착 모델의 주요 공정 변수에 대한 파과곡선을 잘 모사할 수 있음을 확인할 수 있었다. Zeolite was synthesized from coal fly ash produced by a domestic power plant and applied for the removal of ammonia from waste water. Zeolite was synthezied using a hydrothermal method involving an akaline reaction with NaOH, and adsorption experiments and simulations were performed with the pellectized zeolite. The experimental data obtained from adsorption isotherms were consistent with the Langmuir, Freundlich and Sips equation. Also, most of the correlated results for the fixed bed model based on surface diffusion and Sips adsorption isotherms equation were consistent with the experimental data.

3원호 미끄럼 베어링을 적용한 공작기계 주축계의 정적 및 동적 특성 해석시스템 개발

조재완,김석일,이군석,김춘배 韓國工作機械學會 2000 한국생산제조학회지 Vol.9 No.4

In this study, a static and dynamic characteristics analysis system for machine tool spindle systems with 3 lobe sliding bearings is developed based on Timoshenko theory, finite element method and windows programming techniques. And the characteristic values of 3 lobe sliding bearings such as eccentricity ratio, attitude angle, friction coefficient, stiffness coefficients, damping coefficients and so on, are determined by using the thermal equilibrium condition of spindle sys-tems. Since the developed system has various analysis modules related to static deformation analysis, modal analysis, fre-quency response analysis and so on, it can be utilized to perform systematically the design and evaluation processes of spindle systems with 3 lobe sliding bearings under windows GUI environment.