VRE 감염증의 임상상, 미생물학적 특성 분석 및 유전적 관련성 비교 : 전국 6개 병원에서 분리된 VRE를 중심으로

정희진,박정원,엄중식,하경임,신종희,김정미,이혜수,박영희,김우주,박승철 대한감염학회 2002 감염 Vol.34 No.5

PC Beam 교량의 진동 특성에 관한 연구

유희중,윤영균 호남대학교산업기술연구소 2011 산업기술연구논문집 Vol.17 No.-

본 연구는 실제 교량(PC Beam)에서 재하시험을 통해 교량의 고유진동수를 진동모드별로 파악한 후, 수치 모델링을 통하여 유도된 동적하중에 따른 6차 모드까지의 고유진동수를 고려하여 처짐을 계산할 수 있는 산정식에 관한 것이다. 처짐 계산식은 모드중첩법에 의한 비감쇠 강제진동 이론을 이용하여 교량을 등속도로 이동하는 동적 주행하중에 의해 발생하는 처짐을 계산할 수 있도록 수치 모델링을 하였으며, 이를 검증하고 자동으로 계산할 수 있도록 하였다. 그리고 제안된 처짐 계산식을 검증하기 위하여 PC Beam 교량을 대상으로 동적재하시험을 실시하여 처짐을 측정하고 이 값을 본 연구의 처짐 계산식의 결과와 비교하였다. 이 결과, 본 연구에서 제안하는 처짐 계산식은 고유진동수를 고려하는 진동모드의 차수가 낮은 경우에 비교적 정확한 처짐을 예측하며, 주행속도에 따라서는 적용하는 진동모드 차수에 의하여 처짐 예측의 정확도가 영향을 받는 것을 확인하였다. This research bridges the actual (PC Beam) through the loading test on the bridge identified by the resonant frequency of vibration mode, and then through numerical modeling based on dynamic loads induced through the sixth mode, the resonant frequency can be calculated by considering deflection estimate is about expression. Deflection due to the calculation mode superposition theory bigamsoe forced vibration of the bridge to move the dynamic driving force constant velocity caused by the deflection to be calculated with numerical modeling was validated and it was so that it can be evaluated automatically. And, in order to validate the proposed equation of deflection against PC Beam Bridge dynamic loading test conducted to measure the deflection of the deflection of this study, these values ​​were compared with the results of calculations. As a result, the deflection equation proposed in this study to consider the natural frequency of vibration mode, a relatively low degree, predict the correct sag, depending on driving speed in order to apply the vibration mode is affected by the accuracy of predictions of deflection were to receive.

등급사의 근내지방도, 육색, 지방색 분석업무의 현황파악에 관한 연구

양희중 청주대학교 2018 産業科學硏究 Vol.35 No.2

The evaluation of quality of livestock such as meat and port are made by evaluators at Korea Institute for animal product quality evaluation (KAPE). The fairness of evaluators and the clear guidance of their work are very important. This paper is an extension to find out a methodology to evaluate the work process for the analysis of portion of fat, color of meat, and color of fat. Evaluator can get feedback about their relative severity on their evaluations.

콘크리트 보강형 사장교의 보행자가 받는 진동에 관한 연구

유희중 호남대학교 산업기술연구소 2012 녹색산업연구 Vol.18 No.2

본 연구에서는 차량 주행시 동일 구조물을 보행하는 사람이 느끼게 되는 진동영향 정도를 실험을 통하여 연구하였으며, 차량으로 인한 진동의 영향은 보강형 콘크리트 사장교를 대상으로 하였다. 대상 교량의 연장은 464m이며 2차선 사장교로서 차량하중이 교량을 주행할 때 발생되는 진동레벨을 측정하여, 교통 진동의 관리기준치와 비교해 봄으로써 사용성을 평가하고자 한다. 그러나 현재 우리나라에서는 차량의 통행으로 발생되는 교량의 진동에 대해서는 그 수준을 평가할 일괄된 방법 및 기준은 없는 실정이다. 그러므로 본 연구에서는 진동레벨 측정값을 이용하여, 교통소음 진동의 관리기준에 제시된 평가기준에 의하여, 보행자가 받는 차량의 진동에 대한 연구를 수행하였다. 그 결과 교량의 연직방향은 측정 진동레벨치가 관리기준치를 약간 상회하고 있으나, 진동에 대해 불쾌감을 느끼는 정도로써 진동 사용성이 비교적 양호한 것으로 판단되며, 또한 교량의 횡방향 및 종방향은 측정 진동레벨치가 관리기준치 이내에 있으므로, 진동을 약하게 느끼는 정도로써 진동 사용성이 양호한 것으로 판단된다. 핵심 용어 : 진동, 사장교, 진동레벨, 보행자 In this study, we reserched the degree of the vibration of which a person can feel while the person driving the same structure. We carried out the experiment about the effect of the vibration caused by vehicles on the reinforced concrete cable-stayed bridge. The length of the bridge is 464m, and the bridge is cable-stayed bridge with two-lane. Our intention is evaluating the usability, so we measured the level of vibration that occurs when driving the vehicle as a two-lane cable-stayed bridge load, as compared with the standard value of traffic vibration. However, in Korea, we don't have coherent methods and standards to measuring the degree of the vibration of the bridge caused by the passage of vehicles. Therefore, in this study, we used the vibration level measurements. And we reserched the vibration of the vehicle receives a pedestrian by using the criteria outlined in the Traffic Noise and Vibration Management ratings. As a result, the vertical direction of the bridge was estimated values measured vibration level control reference value slightly above, but enough to feel a bit of discomfort for the vibration as a relatively good vibrations usability. Thus, And the measured vibration level is shorter than the reference value which is transverse and longitudinal, so the bridge is considered good usability vibrations feel as the amount of weaken vibration. Keywords: Vibration,Cable Stayed Bridge, Vibration Level, Pedestrian

축산물 품질 평가원 등급업무의 엄격도 분석에 관한 연구

양희중 청주대학교 2016 産業科學硏究 Vol.33 No.2

The evaluation of quality of animals such as cows and pigs are made by evaluators at Korea Institute for animal product quality evaluation (KAPE). A scientific criterion determining the fairness of evaluators has been made. This paper is an extension to find out a methodology to evaluate the severity of evaluators. Evaluator can get feedback about their relative severity on their evaluations.

문학 작품 감상 교육의 연구 방안 : 시 감상 교육의 이론과 수용자의 반응을 중심으로

이희중,강성도,정성모,이창호,조성리 전주대학교 교육문제연구소 2000 敎育論叢 Vol.15 No.-

수직점프 수행시 두 발의 동시· 비동시 스텝에 따른 운동학적 특성 분석

윤희중,이연종,이경식,유실,정남주 韓國體育大學校附屬 體育科學硏究所 1997 韓國體育大學校附屬 體育科學硏究所論文集 Vol.16 No.1

The purpose of this study is to quantify the differences between synchronous and asynchronous step during vertical jump. The subjects of this study were 3 males college students. And 2 S-VHS vedio cameras were used for the data collection. The Direct Linear Transformation (DLT) method was employed to obtain 3-D position coordinates of 21 landmarks. And the following conclusions were drawn ; 1. Synchronous step was faster in approach velocity than asynchronous step. 2. Asynchronous step was smaller in knee flexion angle than synchronous step. 3. Synchronous step was faster in angular velocity at knee flexion than asynchronous step and asynchronous step was faster in angular velocity at knee extention. 4. Asynchronous step was higher in take-off height and loss height than synchronous step. 5. Synchronous step was higher in flight height top height and reach height than asynchronous step.

능동전력필터의 히스테리시스와 PWM 전류제어의 비교 분석

김희중,한병문 명지대학교 대학원 1999 대학원논문집 Vol.3 No.-

This paper describes analysis results of control system for a three-phase active power filter, which can eliminate the harmonics in the ac sides of rectifier.. The active power filter normally uses two control schemes for the output current, which are the hysteresis control and PWM control. Two control schemes are analyzed in detail and compared with each other through experimental works with a hardware prototype.

무증상 대퇴골두 무혈성 괴사의 증상발현

원중희,김용민,최의성,이호승,서중배,배병권 대한고관절학회 2001 Hip and Pelvis Vol.13 No.1

직장암환자에서 복회음병합절제술(Miles' operation) 후 발생한 지속적인 배뇨장애의 치료

박희석,김기찬,정호중 고신대학교 의학부 1998 高神大學校 醫學部 論文集 Vol.13 No.1-2

Bladder dysfunction is one of the serious postoperative complications after rectal cancer surgery. To get sufficient objective data and factors for adequate management of bladder dysfunction following rectal cancer surgery, we reviewed medical records of 122 patients who had abdominoperineal resection of rectum (Miles' operation) for rectal cancer. The incidence of bladder dysfunction in 122 rectal cancer patients was 18.9 percent (23 patients). Among 23 patients with bladder dysfunction, 10 patients were referred to our rehabilitation service and their bladder was areflexic type neurogenic bladder at referred time. In 10 patients referred to our rehabilitation service, 8 patients(80.0% got the balanced bladder and 2 patients(20.0% ) failed, and the interval between beginning of bladder training and establishment of balanced bladder in 8 patient was 13.4±6.8 days. In 13 patients did not referred to our service, only 3 patients(23.1% ) got the balanced bladder and 10 patients(76.9%) failed. To improve the life quality of the rectal cancer patients with neurogenic bladder following abdominoperineal resection of rectum, early proper rehabilitative managements including bladder training were should be given.