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李良元,李炳甲 中央醫學社 1972 中央醫學 Vol.22 No.2
An experimental study of carbon monoxide concentration in air of the restaurants(total 50) and carboxyhemoglobin saturation of workers(512) who were working in the restaurants was conducted by the staffs of the Dept. of Preventive Medicine from November 1970 to December 1971. Carbon monoxide concentration in air was measured with Kitagawa CO detecting tube and carboxyhemoglobin saturation in the blood of workers was measured by The expired air analysis technique following Dr. Breysse and Gabay. Each worker was asked to inhale and exhale deeply prior to commencement of the test. They were then requested to inhale and hold their breath for approximately 20 seconds after which they were instructed to exhale "normally" then to blow the remainder of the breath into a balloon. This expired air was then immediately examined with the Kitagawa tube and carboxyhemoglobin saturation was calculated from the following regression relationship: COHb%=0.5+(CO ppm/5) The findings and results obtained were summarized below: 1. The mean CO concentration in air of restaurants of Class A, where only propane gas was used for fuel, was less than 50 ppm and the mean COHb saturation in the blood of workers was 7.5% in summer and 8.1% in winter. 2. The minimum concentration of CO in air of the hall of Class B restaurants where used gas was 96.5 ppm during summer and maximum concentration was 180.3 ppm in the kitchen during winter. And the COHb saturation was 12.5-17.1% which could initiate the slight CO poisoning. 3. In the restaurants of Class A where charcoal was used for fuel, the air contained 83.5-144.8 ppm of carbon monoxide and the COHb saturation in the blood of workers was 11. 1-15.4% which could cause slight symptoms of CO poisoning. 4. Mean concentration of CO_ in the B or C graded restaurants where charcoal was used, was 265 ppm and the COHb saturation was as high as 20% which could cause moderate CO poisoning to the workers. 5. Even in the summer, so called wine shop where coal was used for fuel contained more than 124.3 ppm of CO and in the winter it contained 221.5 ppm. Among them we could find some contained as much as 350 ppm of carbon monoxide in air. The mean COHb saturation in the blood was 21.4% which could cause moderate symptoms of CO poisoning. 6. Highly significant correlation was found between the COHb saturation and the concentration of CO in air of restaurants.
이양원 湖南大學校 情報通信硏究所 2003 정보통신연구 Vol.13 No.-
As the amount of information on the WWW is increasing at a very high speed, the role of search engines has become more necessary and important. Yet, current popular search engines have a limitation of scalability because the more information those engines gather, the more garbage hit search results are produced, thus, XML based metadata has recently been the issue of much focus. Metadata is information about information, which using a small potion of data can express the fundamental information about other information. XML enables data to be expressed better organized and well structured. Moreover, the information in those current efficiency and make them disappointed by dead links and obsolete pages. this is because the information was collected and indexed in advance before users do searching. therefore, a mechanism is required that cam search from current and up-to-date information resources dynamically in real time to avoid retrieving out of data information. In this study, a new concept search agent system for the WWW by using XML based technology is proposed. the implementation of the prototype of this proposed system, the comparison with traditional search engines, and the evaluation of the prototype system are also discussed.
이양원 호남대학교 정보통신연구소 2000 정보통신연구 Vol.10 No.-
The purpose of this paper is to develop the web-based apartment flaw-repairing petition system which can be operated under the internet environments. The developed system mainly consists of administrator, constructor and apartment resident section. The administrator can administrate all of the actions which will be occurred during the operation. Constructor must be enrolled before resident can use this system. All of the resident member must enroll before they petition the company. All of the processing is monitored and accumulated at the database to calculate the statistics and finally will be shown by the graphical results. This system which is programmed by the PERL and PHP and MySQL will be easily transformed into the similar kind of request system.
A Study of Multi-Target tracking for Radar application
이양원,Lee Yang Weon The Korea Institute of Convergence Signal Processi 2000 융합신호처리학회 논문지 (JISPS) Vol.1 No.2
This paper introduced a scheme for finding an optimal association matrix that represents the relationships between the measurements and tracks in multi-target tracking of Radar system. We considered the relationships between targets and measurements as MRF and assumed a priori of the associations as a Gibbs distribution. Based on these assumptions, it was possible to reduce the MAP estimate of the association matrix to the energy minimization problem. After then, we defined an energy function over the measurement space, that may incorporate most of the important natural constraints.
김경수,강오형,이양원 群山大學校 情報通信技術硏究所 1997 情報通信技術硏究論文集 Vol.1 No.-
In this paper, we suggests a novel approach which modifies facial images by utilizing eigenvectors without facial image analysis. Eigenvectors are often used in face recognition and expression understanding, since they exhibit good statistical characteristics of a given population. Especially we present how to employ eigenvectors to reconstruct novel facial images. For this purpose, weight vectors in an eigenspace are modeled to from weight vector database and weight vectors in this database are then applied to facial images to generate desired outputs.
朴棋鴻,李羊遠 群山大學校自然科學硏究所 1986 自然科學硏究 Vol.1 No.-
Recently, Distributed system has become the main issue in the Data Processing World. Accordingly many papers dealing with the subject are presented. This paper analyzed the general situation of University focused on Kunsan National University in order to realize Distributed System suitable for the surroundings of University. For the purpose of realizing Distributed System the hexagon method is composed and presented in consequence of the analysis.