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성명제, 한찬훈 충북대학교 건설기술연구소 2008 충북대학교 건설기술연구소 논문집 Vol.27 No.1
The present study aims to investigate the styles of traditional classrooms and to discover the acoustic characteristics of the classroom. Acoustic experiments were undertaken at the Myoung Ryun Dang at the Cheongju Hyang-gyo which have typical style of the traditional classroom of Korea. The background noise level is about 37.3dB that is unsuitable for educational spaces. It is because lots of noise is coming from the outside. Several acoustic parameters were measured at 12 points including sound pressure level (SPL), reverberation time(RT), definition(D50) and speech intelligibility(RASTⅠ). It was found that SPL is reducing rapidly in proportion with the distance away from the sound source. The average value of RT is 0.75 second when classroom was empty which means the appropriate condition for speech. The average D50 value is a 0.60 that is regarded as suitable condition. The average RASTⅠ is 0.66 which is a value of satisfactory level. The result shows that Myoung Ryun Dang has good acoustic conditions with short reverberation time and high clarity in spite of the noises.
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QRans Order : QR 코드를 이용한 다국어 간편 주문 시스템
권찬미, 이동주, 엄성용 서울여자대학교 컴퓨터과학연구소 2017 정보기술논문지 Vol.15 No.-
In this paper, we propose an automatic order system for restaurant customers, which utilizes QR code and provides multilingual menu and currency conversion. The system consists of 2 main parts : application for customers, web and application for restaurant managers/owners. The main functions of the system are described with captured screens in this paper. Customers use the smart phone application and QR code tag attached each table to make orders. The multilingual menu and various currency feature help the foreign customers to make orders easily. The orders made by customers are automatically displayed in the smart phone or tablet installed in the cashier count and kitchen. The orders can be managed using web based system. 본 논문에서는 최근 빠르게 도입되는 무인 주문 서비스를 적용하여 다양한 식당과 국내외 소비자를 대상으로 개발된 QR 코드를 이용한 <다국어 간편 주문 시스템>에 대해 설명한다. 개발된 시스템 ‘QRans Order’는 식당 고객용 스마트폰 어플리케이션과 식당 운영자용 관리자 웹 및 스마트폰 어플리케이션으로 구성되어 있다. 본 논문에서는 개발된 시스템의 주요 기능을 화면 구성과 함께 설명한다. 시스템 구현 결과, 식당 고객용 스마트폰 어플 리케이션은 테이블마다 마련된 QR 코드를 이용하기 때문에 직원을 부르지 않더라도 앉은 자리에서 간편하게 음식을 주문할 수 있다. 또한, 다국어 기능을 통해 외국인 고객들도 간편하게 메뉴를 보며 주문할 수 있으며 선택한 언어에 따라 환산된 가격 정보도 알 수 있다. 식당 운영자용 관리자 웹 및 어플리케이션에서는 주문이 들어올 때마다 즉각적으로 주문 내역을 확인할 수 있으며, 식당 정보 및 메뉴 관리, 매출 관리 등의 업무를 체계적으로 관리할 수 있다.
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成洛元,安贊祐,金賢洙 東亞大學校 大學院 1984 大學院論文集 Vol.8 No.2
This searched for conditions of the optimum absorber to eliminate the chatter vibration by the computer and its effects were confirmed experimentally. The results are as follows. 1. The amplitude ratio of workpiece according to mass ratio was obtained in the optimum absorber by computer. 2. The forced frequency ratio at maximum amplitude ratio according to mass ratio was obtained in the optimum absorber by computer. 3. By direct contact between workpiece and absorber the effects on the elimination of chatter vibration were confirmed.
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유산소성 운동이 호습순환기능 및 혈중지질에 미치는 영향
홍성찬,박병근,함용주 圓光大學校 附設 體力科學硏究所 2000 體力科學硏究 Vol.23 No.-
The Purpose of this research is to examine the effect of the jogging training duration on cardiorespiratory function and blood lipids. Total 12 woman college students were selected for the subjects of this research, divided into two groups, 6 for the control group(C.G) and the other for the experimental group(E.G : 55-60%HRmax). The subjects of experimental group had 12 weeks jogging program in the given intensity, during which the changes in cardorespiratory function and blood lipids were measured three times, at each end of 4th, 8th and 12th week. The research is concluded as follows. 1. At the end of 12th week, the response of HRrest of cardiorespiratory function was decreased to (p<.05). 2. The response of HDL-C changing in blood lipids at the 12th week was also decreased to (p<.05). From these synthesized results, I came to conclusions that exercise intensity of 55-60% HRmax and minimum 12 weeks training duration are required to change the number of heart beat and the air amount of respiration in resting. Maximum amount of oxygen intaken can be possibly obtained after 8 weeks' training duration. HDL-C and LDL-c used as guide posts for the prevention of adult deceases need 12 weeks' training duration according to 55-60% HRmax. Conspicuous changes in HRmax, T-C, TG couldn't be expected from the exercise intensity and the training duration of this research, therefore, another additional research with proper exercise intensity and training duration will be needed afterward.
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전의찬,이성기 조선대학교 환경연구소 1991 環境公害硏究 Vol.8 No.-
Recently, a number of high-rise buildings have been constructed in big cities such as Seoul. The air pollution levels at these buildings are expected to be generally different from those at the ground level. The purpose of this study is to show the vertical distribution of nitrogen dioxide(NO_(2)) in Seoul City. The concentration of NO_(2) with height were measured at the Korea Exhibition(KOEX) building(54 stories), one of the new high storied buildings. At the same time, the vertical variation of the temperature were measured and the effect of the atmospheric stability on the vertical distribution of air pollutants was analyzed. The result are as follows; 1) In the morning. the minimum concentration was found at 50m above the ground, and the maximum value at the ground level and 110m above the ground. In the afternoon, the minimum value was found at 110m above the ground, and the maximum value at 50m above the ground. At night, the minimum value was found at 50m above the ground, and the maximum value at 160m above the ground. 2) The minimum value of daily average concentration was found at 50m above the ground, and the maximum value at the ground level and 160m above the ground. 3) The daily variation of air pollution concentration turned out to have a close relationship with the atmospheric stability. The NO_(2) concentration was higher in the morning exceeding the long-term air quality standard.
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박찬모,홍성표,이정기,이준 조선대학교 에너지.자원신기술연구소 1999 에너지·자원신기술연구소 논문지 Vol.21 No.2
The programmer in the distributed environment is often faced with problems when writes a communication code. One is written the codes by hand and the other is by CORBA IDL compiler. When the programmer writes the code by hand then the speed of the program may be increased, but the human effort required to implement and maintain is greatly increased. If the code is generated using a CORBA IDL compiler then programmer effort will be reduced, but the performance of the Application program may be poor. In this paper, we suggests the way that the stub code is maintain the enough free space before marshaling the data into message buffer. This methods were increased the performance of Application program and solved the problems that optimizing of code.
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홍성찬,김용근 圓光大學校 附設 體力科學硏究所 2001 體力科學硏究 Vol.24 No.-
The purpose of this study was to investigate effect of aerobic exercise on ability of exercise performance in high school girls. The subjects of this study were 14 students in Y girls' high school(3rd grades). They were divided into two groups: 7 for an experimental group and 7 for a comparative group. The former was assigned to take a jogging for 16 weeks. The results were as follows; HR in the ability of exercise performance showed a significant decrease(F=4.52, P<.01). VO2max showed a significant increase(F=28.68, P<.001). VEmax showed a significant increase(F=3.48, p<.05). AT also showed a significant increase(F=30.57, p<.001). However no significant change was found in VE. From the above result, we can see that continuous jogging of high school girls has a significant effect on the increase in the ability of exercise performance. Jogging has just a little effect on body composition and blood component though significant difference was not found in them.
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