단순지지된 슬래브교량의 간편방법에 의한 해석

신철호,한봉구 서울産業大學校 2005 논문집 Vol.54 No.2

The simple supported slab bridges are analyzed by the specially orthotropic laminates theory. This method, however, may be too difficult for some practising engineers. In this paper, the result of analysis for such plate by means of the beam theory with unit width is reported. By using the "correction factor", the accurate solution for the plate can be obtained by the beam theory. The result of this paper can be used for reinforced concrete slab bridges analysis by the engineers with undergraduate study in near future

二軸 對稱形 不規則 斷面 圖形에 대한 等角寫像 函數의 유도와 非熱源 熱傳導 解析에의 應用

裵信徹,李俊昊 단국대학교 1987 論文集 Vol.21 No.-

Generally it is very difficult to solve the equation of heat conduction analytically on regions with irregular configuration. So, these kinds of problems can be solved by numerical methods using computer. The representative numerical methods on heat conduction problem are F.D.M. and F.E.M. But these methods contain several important considerations such as C.P.U time and the number of segments and so on. If we know the mapping functions transforming irregular shapes into unit circle, we can overcome these difficult factors. In this paper, the mapping functions on three kinds of irregular shapes were derived and the Dirichlet problems of two dimensional heat conduction without heat source were solved by using them. Actually these conditions are very interesting in fields of unclear and heat treatment in industry. The derived mapping solutions are very simple forms containing fundamental functions such as Bessel and exponential functions. Specifically, at centers of shapes the value of zero order Bessel function of the 1st kind is 1 so that mapping solutions become only exponential functions. To verify the accuracy of this method, mapping solution on square shape was compared with exact and F.D.M solutions. The result showed that this was a good method to solve several non-analytic problems.

혼합洗劑의 洗濯性과 세탁效率에 관한 연구

장애신,최철호 全南大學校家政科學硏究所 1994 生活科學硏究 Vol.4 No.-

The purpose of this study was to determine oily soil removal from cotton, polyester, cotton/polyester knitted fabrics at a range of wash temperatures and wash cycles with commercial home laundering detergents of similar formulations. Removal of oily soil was determined by measuring the whiteness of solied and washed fabrics. The whiteness has been measured on a color difference meter. Multiple regression analysis was used to estimate the relationships between the measures of oily soil removal. The results were as follows : Oily soil removal of the soiled cotton knitted fabric was influenced by washing temperature rather than by washing time and was occurred at the low temperature of 10˚C and 27˚C without great difficulties. Synthetic oily soil was more difficult to remove from polyester than from any other fabrics. The effect of washing at 49˚C was worse than that of washing at the lower temperatures in terms of energy efficiency of laundry.

유방에서 기원된 전이성 췌장암종 1예 : A case report

김윤신,이미숙,장원재,임성철,기근홍,전호종,서재홍 조선대학교 1994 The Medical Journal of Chosun University Vol.19 No.2

Pancreas is known for the unfavorable soil to the metastatic carcinoma, and pancreatic metastasis is achieved after systemic dissemination was developed. The primary tumors of metastatic pancreatic carcinoma are breast, lung, Iymphoma, malignant melanoma, leukemia, stomach. and colon. The breast carcinoma is the commonest tumor to metastasize to pancreas and both tumors are related to estrogen receptor for tumor growth. In the present case, tumor cells had small round nucleus and showed indian file infltrating pattern and lack of cohesion, which are seen in infiltrative breast carcinoma. The patient was underwent radical mastectomy due to infiltrative ductal carcinoma three years ago. And also the tumor cells showed nuclear reactivity to immunostaining for estrogen receptor In combination of the histopathologic. immunohistochemical, and her past history, we concluded that breast carcinoma was metastasized to pancreas, and we report a case of metastatic pancreatic carcinoma from breast with review of literatures.

연속파형 Nd:YAG 레이저에 의한 인코넬 600의 용접 공정변수의 연구

배신철,유영태,송성욱,신호준,나기대 朝鮮大學校 機械技術硏究所 2004 機械技術硏究 Vol.7 No.1

The laser welding process is one of the most advanced manufacturing technologies owing to its high speed and deep penetration. Welding characteristics of Inconel 600 Alloy using a continuous wave Nd:YAG laser are experimentally investigated. The major process parameters studied in the present laser welding experiment were position of focus, laser power, travel speed. The gap and offset maintained as small as possible. Optical microscope were used to investigate the microstructures of the welded zone. The follow conclusions can be drawn the laser power and travel speed have a pronounced effect the fusion zone size and shape.

역상 미셀용액에 가용화된 acetanilide, p-diacetylbenzene 및 tetrabromo-p-quinone의 미세환경의 성질

金信局,朴哲浩,李相佐,高正秀 木浦大學校 基礎科學硏究所 1995 基礎科學硏究誌 Vol.13 No.-

Solubilization of some carbonyl compounds such as acetanilide, p-diacetylbenzene and tetrabromo-p-quinone was investigated in a variety of reversed micellar solutions by UV spectrophotometric method. In the reversed micellar solutions used cyclohexane as a solvent, the microenvironmental polarity of these carbonyl compounds decreased as DAP> DAB> DAC> DAL By adding water into the reversed micellar solution, the polarity of the site for the solibilizate became higher.

헬스클럽의 서비스 질과 고객만족 및 재 가입의사의 관계

성영호,김경식,권창기,정철규,신인숙 龍仁大學校 體育科學硏究所 2003 體育科學硏究論叢 Vol.13 No.1

This study was to analysis the relationship between service quality and consumer satisfaction, repurchase in health club. To attain the goal of the study described above paragraphs, the subject of this study were selected by cluster random sampling method. This study drew out and analyzed 310 people in total. The result of reliability check up was here below; Chronbach 'α=.82-91. To analyze materials, multiple regression and path analysis were used as statistic analysis techniques. The conclusion based on above study method and the result of material analysis are here below. First, the service quality influences on repurchase. Second, the service quality influences on consumer satisfaction. Third, the service quality does directly influences on consumer satisfaction and repurchase. Namely, consumer satisfaction is a variable connecting service quality and re-purchase.

장간막 낭종 : 1예 보고

이미숙,김윤신,이미자,김용임,임성철,전호종 조선대학교 1994 The Medical Journal of Chosun University Vol.19 No.1

Mesenteric cyst is a rare intraabodominal mass which is composed of most fibrous tissue with focal lining by flattened cells, cholestrol clefts and foam cells but lack of smooth musscle components and elements of the Iymphatic system. And, this entity is frequently misdiagnosed preoperatively as a cystic Iymphangioma. Therefore, histologic and ultrastructural evidence suggest that they are pathologically distinct. It must be distinguished from other intraabdominal and retroperitoneal cyst because outcome of surgical treatment is different. We report a case of mesenteric cyst arising in mesentery of ascending colon in a 46 year old male who had developed as a presenting symptom of periumbilical pain for 2 days before admission, with review of literatures.

X-선 발생장치 시설의 방사선 차폐 해석

문석형,최호신,권석근,육종철 대한방사선 방어학회 1987 방사선방어학회지 Vol.12 No.1

X-선 발생장치 시설에 대한 방사선 차폐해석은 두가지 측면에서 고려된다. 먼저 1차 방사선과 누설방사선에 의한 영향을 고려하여야 하며 본 연구에서는 NCRP-49 및 51에 제시된 방법을 사용하였다. 둘째, 시설의 미로 출입구에서는 산란방사선에 의한 영향이 보다 중요한데, 본연구에서는 이 영향을 평가하기 위하여 Albedo개념을 근거로 한 단순한 방법이 제시되었고, 이를 토대로 계산된 결과를 컴퓨터 코-드(MORSE-CG)의 계산치 및 실측된 결과와 비교하였다. 본 연구에서 제시된 방법에 의한 결과는 미로출입구 안쪽의 경우에 대한 해석에서는 약간의 오차를 보이고 있으나 미로출입구 문바깥에서는 비교적 잘 일치한다. 여기서 출입문바깥의 경우에 대한 해석이 방사선방어 측면에서 보다 중요하다는 관점에서 볼 때 이 방법은 의료용 또는 산업용의 X-선 및 감마선시설의 차폐설계 및 해석이 응용될 수 있을 것이라고 판단된다. Radiation shielding analysis for a 6MeV X-ray facility was carried out. The primary and leakage radiation for the facility can be evaluated based on the methodology in NCRP No. 49 and 51. The present study deals with radiation scattering analysis for the outside and inside door of the facility based on the albedo concept. The calculated dose rates were compared with the results of MORSE-CG code calculation and the measured data, resulting in a good agreement, even though there existed some deviation for the inside door. These results can be utilized to the radiation shielding design of the medical and industrial X and gamma ray facilities, and to the safety evaluation of these facilities.

수용성 미셀용액에 가용화된 Acetanilide, p-diacetylbenzene 및 tetrabromo-p-quinone의 미세환경의 성질

高正秀,金信局,朴哲浩 木浦大學校 基礎科學硏究所 1994 基礎科學硏究誌 Vol.12 No.-

Solubilization of some carbonyl compounds such as acetanilide, p-diacetylbenzene and tetrabromo-p-quinone was investigated in a variety of aqueous micellar solutions by UV spectrophotometric method. The good linear relationship was obsorved between υ(n→π*)of these carbonyl compounds and solvent polarity parameter, ??, of some pure solvents. Themicroenvironmental polarity of these carbonyl compounds depended on the ionic properties of the surfactants, and decreased as cationic > anionic > nonionic.