自動車 速度와 騷音發散레벨의 關係에 關한 硏究

金甲洙,李澤九,申判湜 嶺南大學校 環境問題硏究所 1997 環境硏究 Vol.16 No.2

요약문차량의 소음발산레벨과 속력의 관계는 도로교통소음을 예측하는데 있어서 매우 중요 하다. 따라서, 본 연구는 속도의 함수인 차량의 소음발산레벨을 대형차, 중형차, 소형차로 구 분하여 측정하였으며, 희귀분석을 통하여 소음발산레벨을 분석하였다.회귀분석의 결과로, 평균소음발산레벨 방정식은 다음과 같이 얻었다. 1) 소형차의 평균소음발산레벨은 : 27.304 + 30.20 Log(V) (R2 = 0.87) 2) 중형차에 대한 평균소음발산레벨은 : 27.716 + 34.67 Log(V) (R2 = 0.86) 3) 대형차에 대한 평균소음발산레벨은 : 31.964 + 33.34 Log(V) (R2 = 0.85) 각각의 방정식에 대한 R-square 검정결과 위치 방정식은 유의하다는 것으로 입증되었다.AbstractThe relations between vehicle's sound emission level and velocity are very important for construct of road traffic noise prediction model. Therefore, this study measured vehicle's sound emission level as functions of speed for heavy trucks, medium weight trucks, automobiles, and analyzed sound emission level through the regression analysis.As a results of the regression analysis, mean sound emission level equation is obtain as below. 1) The mean sound emission level of automoblies : 27.304 + 30.20 Log (V) (R2=O.87) 2) The mean sound emission level of medium weight trucks : 27.716 + 34.67 Log (V) (R2=O.86) 3) The mean sound emission level of heavy trucks : 31.964 + 33.34 Log (V) (R2=0.86) Estimate from the value of each R-square, the above equation can be thought to be good.

도시고속도로 접속 교차로 운영개선효과

김갑수,신판식 嶺南大學校 環境問題硏究所 1998 環境硏究 Vol.18 No.1

대부분의 대도시에서 있는 도시고속도로의 가장 중요한 기능은 이동성이다. 그러나, 대구광역시 도심에 위치한 신천고속화도로의 교통흐름은 주변 간선도로의 교통과 불완전 입체교차형태로 이루어져 있어, 그 처리 방식에 따라 병목현상을 초래하고 있다. 본 연구는 신천고속화도로와 접속되는 접속교차로의 운용방법을 각각의 대안으로 나누어 분석하였다. 대안 설정은 접속 교차로에서의 좌회전 현시 유무에 의해서 좌회전 없음 (대안 Ⅰ), 신천대로 상에 좌회전 (대안 Ⅱ), 대동로 상에 좌회전 (대안 Ⅲ)으로 나누었다. 분석은 각 대안별로 신천대로 Weaving 구간에서의 주행속도 변화, 인접교차로의 U-Turn 구간 V/C비 변화, 접속교차로의 평균정지지체시간 변화, 차량의 주행비용변화에 초점을 두고 실시하였다. 분석결과 대안 Ⅲ이 가장 좋은 효과가 있는 것으로 나타났다. The most important function of the urban expressway is a mobility in most cities. However, traffic flows of Sin-Chun Urban Expressway in Tae-gu is deeply affected by its intersection-type and traffic situation of crossing arterial roads. For instance, bottleneck in Sin-Chun Urban Expressway is affected by these two reasons. This study analyzed the effectiveness of the operational methods of intersection divided into three alternatives on the Sin-Chun Urban Expressway. The alternatives are made upon the existence of left-turn phase : left-turn prohibition by the existence and the non-existence of left-turn phase on cross street (Ⅰ), left-turn on Sin-Chun Dae-Ro (Ⅱ), and left-turn on Dae-Dong arterial road (Ⅲ), respectively. Each alternatives was analyzed according to the change of Running Speed in weaving area, the change of V/C ratio in U-Turn area, the change of Average Stopped-Time Delay in cross street and the change of vehicle operating cost. The results of the analyses showed that the third alternative was most efficient than the other alternatives.

정의적 요소를 강조한 수학과 수업 모형 개발 및 적용 효과

김판수,김민선 부산교육대학교 과학교육연구소 2001 科學敎育硏究 Vol.26 No.-

The purpose of this study was to develop an instruction model emphasized with affective elements, and to examine the effects and evaluation of this model in elementary mathematics. The research problems for this study were established as follows: First, how can the affective elements of 6th-grade textbook be classified? Second, how can the instruction model emphasized with affective elements develop? Third, would this model be effective for improving the students' attitude toward mathematics? To solve the research problems, the mathematics material of 6th-grade textbook were analyzed according to affective elements, an instruction model emphasized with affective elements was developed. To evaluate the effect of this model, 32 students of 6th grade were selected from an elementary school in Busan, Korea. Students were provided with a program for 8 weeks. This program includes activities the improving affective characteristics of mathematics, such as, mathematical attitude, interests, confidence, etc, and affective elements were evaluated from mathematics journal writing, self-evaluated on mathematics lesson. The findings of this study are as follow. The instruction model emphasized with affective elements helps to improve the students' mathematical attitude. Therefore this model would be useful for improvement of affective domain of mathematics.

스포츠마사지가 장거리 달리기의 경기력과 부상예방 및 피로회복에 미치는 효과

노판수,윤우상,박현 경희대학교 체육대학 한국체육과학연구소 2003 體育學論文集 Vol.31 No.-

In this study, 600 amateur marathoners participated in three national events were divided into two groups, sports massage applied group and non-treated group, to investigate the effect of sports massage on their performance, injury prevention and recovery. Results showed that; 1) sports massage group showed more completion numbers than non-treated group, 2) the records were better in sports massage group, 3) sports massage made the fatigue feeling period after running shorter, and 4) sports massage helped the participants sleep better at the event day night. So, it can be concluded that taking spore massage may have a certain level of benefits on the better performance, injury prevention, and recovery from fatigue. From these facts, the following suggestions are possible; 1) more specific way of sports massage needs to be developed for some specific events, 2) the scientific mechanism of how sports massage works, 3) systematically trained sports massagists are needed.

수학 학습 부진아의 인식 및 학습 실태 연구

김판수,조지영 부산교육대학교 교육대학원 2004 논문집 Vol.6 No.-

본 연구는 수학교과의 학습에 방해가 되고 있는 요인을 조사·분석함으로써 학생들의 수학 교과에 대한 부적응 상황을 진단하여 학생들의 수학 부진을 줄이고 나아가 교수-학습 개선에 도움을 주고자 하는데 목적을 둔다. 이를 위해 초등학교 5학년을 대상으로 우선 수학 학습 부진 학생들의 인식을 조사, 분석하였다. 또한 수학 학습 부진아를 지도할 때 학생들이 어려워하는 학습 내용을 사전에 파악하는 것이 학습부진을 줄일 수 있는 중요한 수단으로 보고 4학년 수학 단원 평가를 실시하여 이들이 어떤 내용을 잘 이해하지 못하는지를 분석하였다. 그 결과 수학 학습 부진 학생들은 수학 교과에 대해 부정적으로 생각하고 있었으며, 이들이 어려워하는 수학 내용은 다단계 사고를 요하는 개념, 논리적 연역적으로 추론을 요하는 개념, 문제해결이었다. 그 중에서도 특히 사고를 요하는 문제해결을 어려워하는 것으로 나타났다. This study sets out to investigate underachieved fifth graders in mathematics in terms of the understanding and learning state of mathematics and to help mathematics underachievers by providing make-up class. Thus we need to investigate the following: 1. An understanding of mathematics for underachieved students. 2. A research of the learning contents that the students have difficulties to deal with. For this study we first select 20 underachieved students(12 boys and 8 girls) in mathematics attending an elementary school located in Busan and then a questionnaire is distributed to see their understanding of mathematics. In addition, their performances are evaluated by using a checklist. The questionnaire contains total 30 items and each frequency and percentage are analyzed. The checklist contains 10 items of the contents of 4-Ga and 4-Na respectively. textbooks, The frequency and percentage are also analyzed. We have the following conclusion on mathematics underachievers. First, since they have a negative opinion of the subject, we need to increase the chances of their successful experiences so that they have their confidence and positive attitudes. Second, we should try to teach basic learning contents at the beginning of each unit thoroughly and focus on advanced learning contents gradually by intensifying and reinforcing the contents. Third, it is more desirable to give them suitable assignments they can handle rather than to force to teach advanced contents. An evaluation should be given every time after finishing a unit, and the results should be informed to students. And make-up class should be given if necessary.

大邱新川大路 Weaving 區間에서의 交通流特性에 關한 硏究

金甲洙,申判湜 嶺南大學校 工業技術硏究所 1996 工業技術硏究所論文集 Vol.24 No.1

The purpose of this study is to understand traffic characteristics of weaving sections. Therefore, this study has analyzed the characteristics of traffic flow on weaving sections on SHIN-CHUN in Tae-gu. Using the existing methods to analyze weaving sections, grasp the traffic characteristics of weaving sections, and then made a comparison and analysis between observed data and assumed data. Measuring effect on weaving sections in Highway Capacity Manual is average running speed of volumes running within weaving sections. Therefore, analyzing the variables effecting for running speed, volumes per lane, VR, and the length of weaving sections influenced running speed, but R did few influence running speed. And what influenced the traffic capacity of weaving sections is R and the number of lane rather than the length of weaving sections. It is estimated that average running speed which determine the LOS for weaving sections is almost 'C' or 'D' by observation and assumption and that the assumption between weaving speed and non-weaving speed by the methods of KHCM and HCM is very accurate with observation.

市幹線街路 交叉路에서의 交通遲滯分析에 關한 硏究 : 工事에 따른 遲滯度 比較

金甲洙,申判湜,金國煐 嶺南大學校 工業技術硏究所 1998 工業技術硏究所論文集 Vol.26 No.1

This study describes a way to evaluate effects of delay caused by constructions of various kinds, illegal parking especially occupies one lane among three lanes. The part of intersections delay ratio in urban arterial streets was analyzed by classification which was divided by road-occupation and normal state. The result of this study can be summarized as follows ; ●It was confirmed that Average Approach Delay per vehicle caused by the length of 53m occupancy of the 3rd lane which was bound for SB in Jnag-Won intersection increase 131.7, 217.7, 113.5seconds respectively in EB, SB, NB bounds. ●Level of Service in survey area Went down to level F from level E. Average Approach Speed has decreased by 16.1㎞/h, 22.8㎞/h, 15.3㎞/h respectively in EB, SB, NB bounds.

하부요관결석의 체외충격파쇄석술에 대한 임상경험

선판일,이길호,심대성,성영훈,장대수 朝鮮大學校 附設 醫學硏究所 1992 The Medical Journal of Chosun University Vol.17 No.2

During the last 33 months period between June, 1989 and March, 1992 Extracorporeal shock wave lithotripsy (ESWL) was performed 275 patients with lower ureteral stone by Northgate SD-3 Litho-triptor. Stone localization was done by ultrasonography and diazepam & fentanyl citrate was used intravenously to control pain during procedure in all patients. The success rate of treatment (rate free of calculi plus that of clinically insignificant residual fragment) was 98.1% below lO㎜ in stone size, 95.7% in ll-20㎜, 87.5% in 21-30㎜, 50% over 31㎜ and total mean success rate was 96.7%. Among the ESWL-failed 9 cases, ureterolithotomy was done in 5 cases, ureterorenoscopy in 2 cases and ston basket in 2 cases. Complications after ESWL were transient hematuria 100%, flank pain 7.3% and fever 1.8% and treated conservatively. Extracorporeal shock wave lithotripsy monotherapy with the Northgate SD-3 lithotriptor was considered to be effective and safe procedure for the initial treatment of lower ureteral stone.

동물과 사람유래 Vancomycin 내성 장구균의 항균제 감수성 비교

조윤상,이희수,김종만,류판동,박용호,유한상,이문한 한국수의공중보건학회 2003 예방수의학회지 Vol.27 No.1

It has been recently reported the possibility in the bansfer of antimicrobial resistance to other animals and humans. In particular, vancomycin resistant enterococci (VRE), which have been known as a principal antimicrobial resistant bacteria in humans, have been increased as a pathogen of nosocomial infections. And then animal VRE were suspected as an origin of human VRE. In this study, we isolated Enterococcus spp. from animals, identified by bio- chemical tests, examined for antimicrobial susceptibility, and then compared the antimicrobial susceptibility of VRE among each other as well as human VRE. Enterococcus iecium (29%) was predominant in Enterococcus species (n=122) isolated from animal feces in this study. E. hirae, E. iecalis, E. casseliflam and E. gallinarum were also isolated as rates of 24%, 21%, 16% and 7%, respectively. The resistance of enterococci to penicillin and tetracycline were 66% and 78%, respectively, and the susceptibility of them to chloramphenicol was 66%. Antimicrobial susceptibility test has shown that 91% of VRE from humans (n=11) was susceptible to chloramphenicol and all resistant to penicillin, rifampin and streptomycin. Seventy-five percentage of VRE from chickens (n = 12) was susceptible to rifampin and resistances of them to penicillin, tetracycline and sbeptomycin were 75%, 83%, and l00%, respectively. Therefore, we confirmed the difference of antimicrobial susceptibility from animals and humans, and the antimicrobial susceptibility test could be one of the simple and useful methods for the epidemiological survey of VRE.

수학과 문제해결의 조절 전략

강신포,김판수 부산교육대학교 초등교육연구소 1995 초등교육연구 Vol.6 No.-

We begin with a case in a mathematical techniques of integration investigated by Schoenfeld. The work in integration yielded two results: (1) Even in this simple and straightforward domain, students do not develop efficient control strategies, and their problem-solving performance suffers because of it; and (2) a prescriptive control strategy can result in significant improvements in students' performance(with less total study time). The work in integration results in a study for general mathematical problem solving via heuristic strategies. If bad control could dilute the effects of algorithmic strategies in integration, then it might wash out the effects of heuristic strategies altogether. As in the case of integration, a prescriptive "executive strategy" for problem solving was developed. A variety of tests indicated that students' problem-solving performance can be significantly improved by training in the use of heuristic techniques, if that training is done within the context of a prescriptive control strategy. The second part of this paper summarized relevant works in this fields. Control is a term borrowed from AI. Many researchers in AI and in IP psychology have found it useful to make a qualitative distinction between resources and control. More broadly, there is a growing literature on metacognition documenting the role that competent executive processes play in contributing to competent intellectual performance. Conversely, a lack of cooperative problem-solving experience might hamper the development of individual control strategies.