콘크리트 보수용 폴리머 복합재료의 접착강도 특성

신영수,연규석,이윤수,지경용 강원대학교 부설 석재복합신소재 제품연구센터 1999 석재연 논문집 Vol.4 No.-

이 연구는 기존 시멘트 콘크리트 구조물의 표면층과 보수용 폴리머 모르터의 접착강도 특성을 구명키위해 폴리머 결합재의 종류, 결합재 첨가량, 모재의 표면상태를 변수로하여 실험한 것이다. 폴리머 시멘트 모르터제조에 상용된 재료는 시멘트 혼화용 폴리머로서 styrene-butadiene rubber (SBR)를 사용하였고, 폴리머 모르터의 결합재로는 에폭시 수지 (EP)와 불포와 폴리에스터 수지 (UP)를 사용하였다. 실험결과 모재가 건조상태인 경우 습윤상태보다 강도가 높게 나타나 모재의 상태가 건조한 것이 접착강도에 유리한 것으로 나타났으며, 폴리머 시멘트 모르터가 폴리머 모르터에 비해 접착강도가 낮음을 알 수 있었다. The adhesion properties of polymer mortars for cement concrete repair were evaluated with respect to polymer types, binder ratios and the surface conditions of cement concrete substrate. Styrene-butadiene rubber (SBR) was used as an additive for polymer cement mortar and epoxy resin (EP) and unsaturated polyester resin (UP) were used as binders for polymer mortars. The adhesion strength of polymer cement mortar was smaller than that of polymer mortar. The adhesion strengths to the dry surfaces of substrate were larger than those to the wet surfaces, indicating that the dryness of substrate increased the adhesion strength in repairing concrete structures.

건강보험공단 건강검진과 자비 건강검진 수검자간의 만족도 비교

신연수,박종연,정상혁,정혜영,강혜영 한국의료QA학회 2005 한국의료질향상학회지 Vol.12 No.1

Backgrouds : This study was performed to compare the satisfaction levels for health examination programs provided by between the Korea National Health Insurance Corporation (KNHIC) and private healthcare organizations in Korea. We investigated factors associated with the satisfaction level for the KNHIC health examination. Also, factors explaining for the additional receipt of private healthcare organization's examination were identified. Methods : A self-administered questionnaire survey was conducted in June 2004 with 250 beneficiaries of the KNHIC industrial workers' program and 100 beneficiaries of the KNHIC selfemployed program. A total of 297 completed the questionnaire, including 213 (85.2%) and 84 (84.0%) for each insurance program. Ten questions measuring satisfaction levels for each examination program were rated on a scale ranging from 1 (strongly unsatisfied) to 5 (strongly satisfied). Results : Among the subjects receiving both examinations, the mean satisfaction level for the KNHIC examination (3.07) was significantly lower than that for the private healthcare organization's examination (3.50) (p<0.05). The KNHIC examination showed lower satisfaction for all of the 10 items than the counterpart. In particular, the KNHIC examination had the scores of lower than 3.0 for the items reflecting post-examination management services. According to the multiple regression analysis results, the satisfaction for the KNHIC examination was positively associated with the positive attitude toward health examination(•‚=0.38, p<0.00). The logistic regression results showed that the likelihood of receiving the private healthcare organization's examination in addition to the KNHIC examination increases as the respondents were less healthier(OR=0.29, 95% CI = 0.10¢¶0.84), the satisfaction level for the KNHIC examination decreased(OR=0.46, 0.28¢¶0.75) or the attitude toward health examination was more positive (OR=2.56, 1.31¢¶5.12). Conclusion : The relatively low satisfaction level for both examination programs suggests that there's ample room for improvement of health examination services in Korea. The negative association between additional receipt of private healthcare organization's examination and satisfaction level for the KNHIC examination implies that the improvement of the satisfaction for the KNHIC examination would help to reduce the national expenditure spent on the additional examination.

저압 증발하의 열교환 특성에 관한 연구

신유식,이윤환,서종수,전영흥,정효민,정한식 경상대학교 해양산업연구소 2002 해양산업연구소보 Vol.15 No.-

The purpose of this research is to obtain the characteristics of heat transfer or heat exchange under the vacuum pressure. The general heat transfer or heat exchange can be changed with the experimental environment. In this report, the exothermic calorie and endothermic calorie were measured under the vacuum chamber. These two kinds of calories show the evaporative and condensing sides, respectively, and these calories were measured by using the parameter with flow rate.

산업공단에서의 초기강우 유출수 오염물질 특성 및 처리

신응배,윤현식,김연권,김범수 漢陽大學校 環境工學硏究所 1998 環境科學論文集 Vol.19 No.-

강우시 발생하는 우수유출수에는 초기세척효과(first-flush-effect)로 BOD, SS를 비롯한 고농도의 다양한 오염물질이 함유되어 있으며, 방류선 수체로 유입되어 주변수체의 수질에 많은 악영향을 미치게 된다. 전세계적으로 이에 대한 많은 연구와 조사가 진행중에 있으며, EPA의 조사자료에 따르면 방류선 수체의 수질오염 문제 중 약 30%가 강우유출수로부터 기인하는 것으로 추정한바도 있다. 본 연구에서는 수도권에 인접해 위치하고 있는 S산업공단을 대상으로, 강우시 공단내에서 발생하는 우수유출수에 대해 유량변화 및 수질분석을 수행하였다. S공단은 석유·화학, 기계·금속업 등이 주종을 이루고 있고 분류식하수 배제방식을 채택하고 있어, 공단내 발생되는 우수유출수는 전량 지천으로 배출되고 있다. 시료채취는 공단을 배수구역별 5개 구역으로 구획 후, 해당 배수구역에 대하여 고정모니터링 방법을 적용하여 강우유출수의 수질을 분석·평가하였다. S산업공단에서 발생되는 우수유출수에는 BOD, COD, SS, TN, d-Fe, Zn, Cu 등의 다양한 종류의 오염물질이 검출되었다. 특히, 석유·화학산업, 식품산업, 일반폐기물 야적장 등에서는 BOD, COD, SS, TN등의 일반오염물질 항목들이, 기계·금속산업, 고철 야적장 지역에서는 중금속 항목의 오염물이 고농도로 측정되었다. During the early stages of a storm, significantly higher BOD, SS and other pollutants loadings may occur. This temporary increase is the result of the so -called "first-flush-effect". First flush runoff in the storm is a typical nonpoint source of polluting adjacent water bodies by overflowing pollutants accumulated in street surface from domestic, commerical and industrial area. The quality of storm water runoff is a major concern in the world. In the National Water Quality Inventory, 1990 Report to Congress, states estimated that ∼30% of identified case of water quality impairment are attributable to storm water discharges. (U.S. EPA 1992) In this study, "S" industrial complex located near Seoul metropolitan was investigated to evaluate characteristics of storm water runoff from industrial complex. Major industries of 'S' area were petroleum-chemical industry, metal-mechanical industry, etc. Also, storm water runoff was directly discharged to small artificial channel through storm sewer lines of separated sewer system in 'S' industrial complex. The concentration of several items such as BOD, COD, SS, TN, d-fe, Zn, Cu were founded in storm water runoff from the 'S' industrial complex catchment. Especially, petroleum-chemical industry, food industry, junkyard were exposed to high rate concentration of convention of conventional pollutants, such as BOD, COD, SS, TN, in first flush runoff samples. Higher levels of heavy metals were found at metal-mechanical industry, metal storage on site.

오·폐수 처리시설용 다공질 석재 개발

신영수,이윤수,연규석,김철영 강원대학교 부설 석재복합신소재 제품연구센터 1999 석재연 논문집 Vol.4 No.-

이 연구는 오·폐수에 함유된 유기물을 제거하기 위하여 일반 시멘트 콘크리트에 비해 우수한 역학적 성질을 갖는 폴리머를 이용한 현무암 다공질 석재를 개발하고, 이에 대한 물리. 역학적 특성 및 정화성능을 실험적으로 구명한 것이다. 그 결과 다공질 소재이나 강도가 높고 적당한 단위체적중량을 갖기 때문에 설치 후 안정성을 확보할 수 있고, 정화성능은 나일론 여재에 비해 떨어지지 않으므로, 현장 설치 및 시공방법에 대한 연구가 이루어질 경우 실용화가 가능할 것으로 판단된다. The objectives of this study were to develop porous media for sewage treatment facility using basalt and to explore the possibility of replacing wall structures of sewage treatment plants improve the efficiency of sewage treatment. It was shown that the porous media developed by using basalt was not as efficient as existing media. However, it is expected that the polymer porous media can be economically applied to existing waste treatment plants and help improve sewage treatment efficiency.

전라북도 축구 저변 실태를 통해 본 발전 방향

신종순,김연수 圓光大學校 附設 體力科學硏究所 2001 體力科學硏究 Vol.24 No.-

On 2002 FIFA World Cup in Chon-Ju opportunity, this study was analyzed in order to find a future direction by analyzing the actual conditions of soccer activity based on elite players and common people in Chollabuk-do. The results are as follows: First, on distribution of elite soccer teams in Chollabuk-do, elementary school team ranks the 4th, middle school team ranks the 10th, high school team ranks the 12th and college team ranks the 9th. Except elementary school team, most of all teams mark in the lower part. Second, on distribution of elite soccer players, elementary school players and middle school players rank the 7th, high school players rank the 11th, college players rank the 13th and business team players rank the 4th. Elementary and middle school players are distributed in a middle part, high school and college players are distributed in a lower part. Third, on distribution of soccer teams of common people rank the 6th in 16 teams of all over the country, and the players rank the 7th. It is distributed in a middle part higher than elite soccer team does. The common team is activated of sports in workplace, local characteristics, public health and welfare.

예술심리치료를 위한 무용과 문학의 통합적 연구 : 춤과 글의 학제간 연구문제를 중심으로

신상성,신수연 龍仁大學校 體育科學硏究所 2008 體育科學硏究論叢 Vol.17 No.1

Psychological treatment interface between integrated expressional arts of dance and literature is a treatment program not only for clients (patients) but also for general people. This positive approach of an arttherapy should be widely applicable to an everyday situation. As a method of a physical expression, dance psychological therapy can be an effective and a practical tool for feeling free of his or her awareness. If used with other art therapy, such as play, art, and music, it is expected to be effective. With NLP mechanism, it can be more effective. One can realize him or herself through dance-action and explore an internal self-awareness through writing. Two methods are suggested. One is to let clients read find piece of literature selected by its category and contents and induce them to discuss their feelings. Second method is that clients read though books, understand the situation of the story, have great empathy with a main character, recognize a reality, and finally overcome their own problems. Through employing these methods integrative and systematically, it is possible to maximize therapeutic action.Psychological therapistsof dance and literature can explore alternatives though running more professional and variouskinds of programs continuously. However, integrative psychological therapy of dance and literature suggested in this thesis is limited to only supporting roles. It is just a theoretical suggestion, because the field of integrative psychological therapy is not yet fully developed. Therefore, it is expected to have a process of trial and error. It is, however, effective to approach these theories scientifically and professionally rather than executing without theoretical background. Furthermore, integrative psychological therapy of dance and literature can be more systematic and can study further therapeutic action with professional artists’participation, which has been run fragmentarily. There are limits in psychological consulting and repeated medical treatment. They recur even after clients completely recovered or patients suffer from ill effects.

재조합 Saccharomyces cerevisiae에서 Inulinase와 Invertase의 발현과 분비에 미치는 배양조건의 영향

남수완,신동하,김연희 동의대학교 기초과학연구소 1998 基礎科學硏究論文集 Vol.8 No.1

The effects of medium pH and culture temperature on the expression and secretion and secretion of inulinase and invertase were investigated with recombinant Saccharomyces cerevisiae cells. These cells were obtained by transformation of 2μ-based plasmids pYI10 and pYS10 which contain Kluyveromyces marxianus inulinase gene (INU1A) and S. cerevisiae invertase gene (SUC2), respectively, in the downstream of GAL1 promoter. The expression level and localization of inulinase and invertase were not affected significantly by the initial medium pH: secretion efficiencies of inulinase and invertase into the medium were about 90% and 60%, respectively, in the pH ranges of 4.0 to 6.5. However, the expression and secretion of both enzymes were strongly dependent on the culture temperature. The highest expression (7.7 units/mL) and secretion (6.7 units/mL) of inulinase were observed at 28℃ and 30℃. As a consequence of decreased localization of inulinase in the periplasmic space, the secretion efficiency increased from 68% at 20℃ to 95% at 35℃. The total expression level and secretion efficiency of invertase increased from 19 units/mL and 55% at 20℃ to 25 units/mL and 68% at 35℃, respectively. Irrespective of the culture temperature, the invertase activity in the cellular fraction (periplasmic space and cytoplasmic fractions) was kept constant at around 33∼45%.

황색포도알균에 의한 급성 화농성 천골장골관절염 1예

문수연,신준범,김경엽,김석연,문수영,문송미,이미숙 대한감염학회 2007 감염과 화학요법 Vol.39 No.5

저자들은 특별한 위험 인자 없이 심한 허리 및 왼쪽 둔부 통증으로 내원하여 황색포도알균에 의한 균혈증이 진단된 젊은 여성에서 드문 감염질환인 화농성 천골장골관절염과 엉덩근 및 엉덩허리근 농양이 발생된 예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다. Pyogenic sacroiliits is a rare disease and the diagnosis is difficult because of unawareness of the disease and nonspecific symptoms and signs mimicking septic hip, iliopsoas muscle abscess and herniation of intervertebral disk. There are some predisposing factors related to the disease like trauma, pregnancy, intravenous drug abuse and infection of other systems such as skin, genitourinary system and heart. Staphylococcus aureus is the most common causative bacteria. Here we describe a case of 27-year-old woman presented with acute onset of back and left buttock pain. Bone scintigraphy revealed increased uptake at left sacroiliac joint and computed tomography of the pelvis showed left sacroiliitis with left iliacus and iliopsoas abscess. There was no history of usual predisposing conditions. S. aureus was grown from blood cultures and the patient improved with 2 weeks of intravenous cefazolin followed by 4 weeks of oral clindamycin treatment.

연구개의 이소성 뇌조직 - 1예 보고-

최현주,이연수,김영신,이교영,강창석,심상인 대한병리학회 1998 Journal of Pathology and Translational Medicine Vol.32 No.11