철근콘크리트 전단벽체의 형식에 따른 구조성능 평가

全燦穆,權重培,申鍾學,河基柱 慶一大學校 1996 論文集 Vol.13 No.2

In this study, nine reinforced concrete infilled frames involved bare frames were tested during vertical and cyclic loads simultaneously. This test programs were carried to investigate the horizontal strength and the crack propagation in variance with hoop reinforcement ratio. All specimens were modeling in one-third scale size. In this experimental program structural performance of reinforced concrete shear wall were focus at connection types. Based on the test results, the following conclusions are made. (1) In fully rigid frame, increasing the ratio of hoop bar 2∼3 times on the basis of its ratio of in column(p??=0.196%). The horizontal strength of specimen did not varied, but the increased ductility of specimens were showed greatly at the final failure. (2) In the boundary column menber of reinforced concrete shear wall, increasing the ratio of hoop bar in two or three times, in the fully babel type, the shear and horizontal strength of specimens were increased 1.1-1.2 times than that of fully rigid frame. And infilled shear wall specimen were increased 1.17-1.27 times than that. (3) Fully rigid babel type shear wall specimens were increased 5.7∼8.0 times, and infilled shear wall specimens were increased about 4.0∼5.6 times in comparision with the full rigid frame.

대학생의 직업윤리 결정요인에 관한 연구

전찬열 한국직업능력개발원 2008 직업능력개발연구 Vol.11 No.1

본 연구는 학생들을 대상으로 프로테스턴트 직업윤리(Protestant Work Ethic; PWE)의 대표적 척도인 Mirels & Garrett(1971)의 설문을 사용하여 PWE와 성격유형 및 공정성변수와의 관계를 구명하고 인구통계특성변수에 따른 PWE 차이를 검증하였다. PWE와 성격유형 및 공정성변수들의 관계에 대한 가설은 분배 공정성을 제외하고는 유의한 관계를 나타내는 것으로 검증되었다. 다만 성취욕구와 여가부정은 가설에서 설정한 관계의 방향과 반대로 나타났다. 인구통계특성에 따른 PWE 차이에 대한 가설은 성에서는 유의한 차이가 없고 계층, 종교, 출신고교에 따라 유의한 차이를 나타내는 것으로 검증되었다. 특히 금욕성향에서 가설이 적극적으로 지지되었다. 분석결과를 기존연구에 입각하여 논의하였고, 아울러 연구의 한계와 방향성을 제시하였다. Max Weber argued that Protestant work ethics(PWE) Played an important role in the development of capitalism in the West. Weber's thesis stimulated various research about the relationship between religion and economic attitudes. The purpose of this paper was to examine relationships and differences between PWE and related variables. A survey questionnaire was used to measure PWE values from Mirels & Garrett(1971)'s PWE scale. The sample is composed of college students. Results revealed that external locus of control, need for achievement, justice world scale showed significant relationship with PWE characteristics. And there was a considerable difference among social classes, religions, highschool backgrounds in terms of PWE characteristics. The possible reasons for the findings were discussed in the light of previous studies. Also implications, limitations and directions of study were suggested.

흰쥐 뇌줄기에 분포하는 Nitric Oxide Synthase 신경세포에 관한 면역조직화학적 연구

나준희,허영범,박찬,김정혜,유진화,안희경,이원규 대한해부학회 1999 Anatomy & Cell Biology Vol.32 No.2

비구개관낭종에 관한 X선학적 연구

전찬덕,이상래,황의환 大韓口腔顎顔面 放射線學會 1993 Imaging Science in Dentistry Vol.23 No.1

The purpose of this study was to evaluate the clinical and radiographic features of 35 cases of nasopalatine duct cyst by means of the analysis of periapical and/or occlusal radiograms in 35 persons visited the Department of Oral and Maxillofacial Radiology, School of Dentistry, Kyung Hee University and Chonbuk National University. The obtained results were as follows: 1. The incidence of nasopalatine duct cysts was higher in males(74.3%) than in females(25.7%). 2. The nasopalatine duct cysts were the most frequently occurred in the 4th decades(34.3%). The 6th and 7th decades(17.1%, 17.1%) were next in order to frequency followed by the 5th decades(14.3%), the 3rd decades(8.6%), the 2nd decades(5.7%), and 8th decades(2.9%). 3. In the signs and symptoms of nasoplatine duct cysts, 25.7% were swelling, 17.1% were swelling and tenderness, 20.0% were swelling and pain, and 37.2% were a symptom. 4. In the shape of nasopalatine duct cysts, 40.0% were round type, 48.6% were oval type, and 11.8% were heart type, In symmetry of the nasopalatine duct cysts to the median palatine surture, 85.7% were symmetry, 14.3% were asymmetry. 5. In the width of nasopalatine duct cysts, 11.4% were 6-10mm, 48.6% were 11-20mm, 25.7% were 21-30mm, and 14.3% were 31-40mm. 6. In the periphery of nasopalatine duct cysts., 82.9% were distinct, 17.1% were relatively distinct. 7. In the change of root, 51.5% were intact, 17.1% were root divergence, 20.0% were root resorption, and 11.4% were root divergence and resorption.

釜山市 主要 道路邊의 振動 및 騷音에 관한 調査硏究

全泰玉,安贊祐 동아대학교 환경문제연구소 1987 硏究報告 Vol.10 No.1

This study is concerned with the measurement and analysis on the actual conditions of vibration and noise at the main roadside in pusan. It's results excess on level of environmental vibration and noise requisite to protect public health and welfare with an adequate margin of safety. Vibration and noise pollution affect the health of human beings and its actual condition is more and more serious by high speed of various vehicles and development of industry. It will contribute to the vibration and noise control.

번식한우 최적교체전략 분석

순찬수,이준배 충북대학교 농업과학기술연구소 2000 農業科學硏究 Vol.17 No.-

The objectives of this study were to find out optimal replacement policies to maximize long-term expected profits in managing for Breeding Korean Native Cattle(BKNC). For the study, twenty farms were selected in three areas in Chungbuk province and management status, manager's actions for improving breeding cow's body condition, and transition probabilities from states to states were investigated. Also, we prescribed four states(i.e., thin, moderate, fat, non-pregnant) considering the body condition score of BKNC, and four actions as feed levels(20% augmentation, remain(NRC levels), 20% reduction in feeds intake, and culling) considering manager's decision making on the breeding ability for the BKNC. With an investigated data, we formulated a linear programming model as the dynamic control of a markov decision process. For model formulation we assumed as follows: 1) Decision and state variables can be represented discretely. 2) The state variables are defined such that future state variables are conditioned only by the present state. 3) The long-term expected profit under a given policy is stable over time, so the probabilities of transition between states can be considered to be stationary. To determine the optimal maintenance and replacement policies for the BKNC, the simplex algorithm in LP model was used. With the output results of the LP model solved by a SAS OR package, we can find the optimal maintenance and replacement policies for BKNC. The results of this study were as follows; 1) Under current management status, it was the optimal policy for BKNC that manager should increase the amount of feed for 2-year thin condition and maintain far moderato and decrease 20% of it for the fat during the four months before and after calving and replace for the non-pregnant. 2) Also, to find out the variation effects of feed cost(15% decreasing, non-variation, 15% and 30% ascending), calf price(non-variation, 50%, 100%, and 150% ascending) and BKNC's price(non-variation, 10%, 20%, and 30% ascending), we carried out the sensitivity analysis. As a results, the variation of feed cost didn't much influence on the optimal culling policy for BKNC but ethers did. Namely the culling ages of them are enlarged from three years(100% ascending of calf price and 20% of BKNC) to five years(150% ascending of calf price and 30% of BKNC). - 3) This result shows that he should enlarge the culling age to increase the long-term expected pleats eamed from the breeding management of KNC, as increasing in calf and BKNC prices. Even though the culling age increase is profitable in accordance with the ascending of calf price, he has a preference to short-term expected profits than that of long-term, so he doesn't enlarge the culling ages of them. 4) Finally, application of tutus model was confined to a specific breeding farm. But it can be applied and enlarged for breeding management for other farms though complementary process. From the results of this model, we can draw implication as follows; that is to say, if we impose on low tax rate to the long-term expected profits and on high to the short-term expected profits in the breeding enterprise, the culling age of them can be enlarged.

재순환 버퍼 RLS 알고리즘의 탭 가중치 갱신을 통한 개선된 수렴 특성

김광준,윤찬호,윤민종,나상동 조선대학교 에너지.자원신기술연구소 1999 에너지·자원신기술연구소 논문지 Vol.21 No.2

We extend the sue of the method of least square to develop a recursive algorithm for the design of adaptive transversal filters such that, given the least-square estimate of this vector of the filter at iteration n-1, we may compute the updated estimate of this vector at iteration n upon the arrival of new data. The RLS algorithm may be viewed as a special case of the Kalman filter. Indeed this special relationship between the RLS algorithm and the Kalman filter is considered. We begin the development of the RLS algorithm by reviewing some basic relations that pertain to the method of least squares. Then, by exploiting a relation in matrix algebra known as the matrix inversion lemma, we develop the RLS algorithm. An important feature of the RLS algorithm is that it utilizes information contained in the input data, extending back to the instant of time when the algorithm is initiated. The resulting rate of convergence is therefore typically an order of magnitude faster than the simple LMS algorithm. This improvement in performance, however, is achieved at the expensive of a large increase in computational complexity

트라이애슬론 세계정상급선수와 한국대표선수의 생리적 특성과 경기력 비교 분석

박찬호,김태운,박태곤,김현준 釜山大學校 附設 體育科學硏究所 2005 體育科學硏究所 論文集 Vol.21 No.1

Taiathlon is an individual sport consisting of three disciplines: Swimming, cycling and running. Triathlon has changed from a novel appearance to a very popular Olympic sport within the last fifteen years. The purpose of this study was to identify difference of world top class triathletes and Korean national triathletes.....

뇌진탕 환자에서의 거울상 실서증 1례

정주찬,지명준,이삼규,한승상 大韓再活醫學會 1999 Annals of Rehabilitation Medicine Vol.23 No.4

좌측흉수로 발현된 Boerhaave 증후군 1예

이준,변유미,조민근,조주연,원경준,김영대,박찬국,김만우,유재근,서홍주,이석기 朝鮮大學校 附設 醫學硏究所 2008 The Medical Journal of Chosun University Vol.33 No.2

구토 후 발생한 토혈을 주소로 내원한 환자에서 좌측 늑막 삼출 동반 시 식도 파열의 가능성을 고려하여 흉수 천자 및 지속적인 흉부 단순 촬영의 추적관찰이 필요하며 식도 파열이 배제된 후 환자의 생체 징후 및 토혈 양을 파악하여 내시경 검사 시기를 신중히 결정하는 것이 좋을 것으로 생각된다. 본 증례는 토혈을 주소로 내원하여 Mallory-Weiss 증후군 의심 하에 내시경을 통한 치료 시행 후 추적 관찰에 의해 진단된 Boerhaave 증후군을 경험하였기에 보고하는 바이다. Boerhaave's syndrome is a spontaneous perforation of the esophagus most commonly resulting from a sudden increase in intraesophageal pressure combined with negative intrathoracic pressure caused by straining or vomiting. Surgery should generally be performed within 24 hours because mortality approached 30 to 50 percent in which surgery was delayed. Therefore, early diagnosis and prompt surgical repair are critical for survival. We have experienced a case of Boerhaave's syndrome in a patient presenting with hematemesis with left pleural effusion without any signs or symptoms of pneumomediastinum or pneumothorax.