중량물 운반시 잡기유형과 부하단계에 따른 생리학적 연구

윤양진,이훈식,윤길환,정미라,이재규,이중숙,서국웅 釜山大學校 附設 體育科學硏究所 1999 體育科學硏究所 論文集 Vol.15 No.-

The purpose of this study was to examine physiological changes of the body according to various weight loads and the holding during carrying object. The experiments were conducted with utilizing physiological analyses for five male and five female adults as subjects. The results were as followed. 1. Any significant difference was not shown in heart rate, ventilation and amount of oxygen uptake of male subjects in the case of no load and 5kg. And also no significant difference was shown in expiratory exchange ratio of male subjects of no load, 5kg and 10kg, but in other measure items and other stages of weight was shown. 2. Significant differences were shown in heart rate, ventilation, defluxion of carbon dioxide, oxygen uptake per body weights, respiratory exchange rate, respiration rate and all other measure items of female subjects in all stages of load. 3. In the MMH job, there was no influence on male subjects up to 5kg loads, but there was an significant difference in male subjects in load walking from 5kg. It shows that even in 5kg weight MMH work, female subject's expiratory function was influenced. 4. 10kg load was the limit weight of female subjects and 15kg was of male subjects when they walked on treadmills with 4km/h velocity for 3 minutes, holding loads in the right and vertical types.

抗히스타민劑의 吸光度比法에 의한 定量

李允中,李康春,李東宣,李振九 成均館大學校 1980 論文集 Vol.28 No.-

The absorbance ratio method was applied to the quantitative determination of antihistamines, such as chlorpheniramine maleate(CPM), carbinoxamine maleate(CBM) and diphenhydramine hydrochloride. The influences of indicator and solvent concentration on the precision and accutacy of determination were investigated. And it was found that the effects of temperature and wavelength was negligible in case of averaging conditions. The standard deviations for three antihistamines tested were within 0.13%. As the results, the determination of antihistamines could be carried out easily, rapidly and accurately by the absorbance ratio method.

성인에서 장기간 Furosemide오용과 연관된 신수질 석회화

김윤구,이윤하,이규백,장세호,김대중,오하영,김보현,김미경,조윤숙 대한신장학회 1996 대한신장학회잡지 Vol.15 No.4

현행 중등학교 과학 실험 , 실습 교육 실태 조사 및 그 운영 진단 (Ⅱ) : 고등학교 과학 실험 , 실습 교육을 중심으로

김영호,이윤종,정원우,강용희,양승영,윤성효,안병호,윤일희,권용주,임성규,오철한,기우항,전명남,김중욱 한국과학교육학회 1998 한국과학교육학회지 Vol.18 No.3

본 연구는 96년도에 실시한 우리 나라 중학교 과학 실험·실습 교육의 실태 조사 연구에 따른 계속 연구의 일환으로 고등학교 과학 실험·실습 교육의 실태를 조사하기 위한 것이다. 연구내용은 고등학교 과학 교과서의 분석, 실험·실습 실시 현황 분석, 현행 실험·실습 교육의 문제점 분석, 현행 학교 구성원들의 실험·실습 교육 운영 실태 조사 및 현행 실험·실습 교육의 개선을 위한 연구과제 도출을 주요 연구내용으로 다루었다. 연구방법은 전국의 고등학교 80개교를 대상으로 이들 학교의 학생 1,977명, 교사 165명, 학교장 80명에게 적용하였다. 본 연구에서 밝혀진 결과를 중심으로 우리 나라 고등학교 과학 실험 실습 교육의 정상화를 위한 실험 내적인 연구과제를 제시하면 다음과 같다. (1)교재 개발에 대한 연구, (2)실험 킷트 개발에 대한 연구, (3)교사교육 및 재교육 프로그램 개발에 대한 연구, (4)교실 밖 실험·실습 활동 프로그램 개발에 대한 연구, (5)과학 실험·실습 소재의 개발에 대한 연구. This study was accomplished to analysis and survey on the experimental and practical science education of high school in korea for the consecutive study of the an analysis and survey on the experimental and practical science education of middle school in korea(Lee, Yoon-Jong et al., 1997). The status of facilities, management for the experiment, practices, teaching methods in high schools have been investigated. The present status and reasonable management of the high school science education have been grasped from the questionaires. To do this 165 high school science teachers, 1977 students and 80 principals of high schools in Korea are administered questionaires of Science Education Research Institute of Kyungpook National University(1997). The results of this study are as follows : The reasonable management for experiments and practices of science education were scanty in the high school around the urban and rural school owing to the shortage of facilities and equipments, crowded class, excessive class works for teacher, excessive contents of present textbooks and insufficiency of the administrative supports etc. The current teaching method of high school science has emphasized knowledge. This fact does not satisfy the objective of learning due to lack of the teaching method. Desirable directions for the improvement of present status of high school science education were proposed in this paper.

2-Bromoacetylnaphthalene을 螢光誘導體化劑로 利用한 Alclofenac의 HPLC 分析에 관한 硏究

李允中,曺正吉,河仁植,金容熙 成均館大學校 科學技術硏究所 1990 論文集 Vol.41 No.1

A simple, rapid and high sensitive method for determination of alclofenac is described. 2-Bromoacetylnaphthalene was used as the pre-column fluorescent derivatizing reagent for high performance liquid chromatography. Alclofenac was derivatized quantitatively into fluorescent compound by reacting with 2-bromoacetylnaphthalene in the presence of 18-crown-6 ether in acetonitrile. The optimum conditions for the derivatization such as concentration of KOH, 18-crown-6 and 2-bromoacetylnaphthalene, reaction temperature and reaction time were investigated. The structure of alcolofenac derivative was confirmed from IR, NMR and mass spectra. The fluorescence properties of alclofenac derivative were examined. The derivative was separated on a reverse phase column (Lichrosorb RP-8) in isocratid elution mode using the secondary mixture of acetonitrile and water as the mobile phase. The effluent was monitored by fluorometer.(Ex. 303, Em. 418 nm). The calibration plots for the peak area versus concentration of alclofenac observed to be linear(r =0.999).

Phenethylamine 誘導體와 7-chloro-4-nitrobenzo-2-oxa-1,3-diazole의 反應硏究 및 이의 螢光分析學的 應用

李允中,柳弘一 成均館大學校 科學技術硏究所 1985 論文集 Vol.36 No.2

Fluorescent derivatives of phenethylamines such as ephedrine, pseudoephedrine, methamphetamine, phenylpropanolamine and phenylephrine were synthesized by using 7-chloro-4-nitrobenzo-2-oxa-1, 3-diazole (NBD-C1) as a fluorescent agent. The NBD derivatives were separated by employing thin layer chromatographic method, and their structure were identified from elemental analysis as well as infrared spectroscopy and NMR spectroscopy. The examination for the effects of organic solvents on the fluorescence properties of NBD derivatives revealed that the organic solvents influence the emission maximum wavelength. The sensitive spectrophotofluorometric method was used for the quantitation of NBD derivatives, whose quantitative sensitivity range was 2. 2X10 exp (-1) 5X10 exp (-2)㎍/㎖. High performance liquid chromatographic method with fluorescence detection was used for the simultaneous determination of NBD derivatives. The quantitative sensitivity was 7. 5X10 exp(-2)㎍ for phenylpropanolamine and 3X10-' ug for methamphetamine, respectively.

신경망을 이용한 단어에서 모음추출

이택준,김윤중 한밭대학교 정보통신전문대학원 2004 정보통신전문대학원 논문집 Vol.2 No.1

본 연구에서는 단어에서 모음을 추출하기 위해 시스템을 설계하고 구현하였다. 이 시스템은 음성특징 추출모듈과 신경망 모듈로 구성되어 있다. 음성특징 추출모듈에서는 음성의 특징추출에 LPC모델을 이용한다. 신경망 모듈은 학습모듈과 음성인식모듈로 구성 된다. 학습모듈은 학습 패턴을 설정하고 신경망을 구성한 후 학습을 한다. 음성인식모듈은 학습된 신경망의 정보를 이용하여 단어 안에 들어있는 모음을 추출해 난다. 구현된 모음추출 인식기의 성능을 알아보기 위해 모음(아, 어, 오, 에, 이)5개를 선택 신경망을 학습시켰다. 이 실험을 통해 음성인식모듈이 4개의 단어로부터 모음을 정상적으로 추출하는 것을 확인할 수 있었다. This study designed and implemented a system to extract of vowel from a word. The system is comprised of a voice feature extraction module and a neutral network module. The voice feature extraction module use a LPC(Linear Prediction Coefficient) model to extract a voice feature from a word. The neutral network module is comprised of a learning module and voice recognition module. The learning module sets up a learning sets up a learning pattern and builds up a neutral network to learn. Using the information of a learned neutral network, a voice recognition module extracts a vowel from a word. A neutral network was made to learn selected vowels(a, eo, o, e, i) to test the performance of a implemented vowel extraction recognition machine. Through this experiment, could confirm that speech recognition module extract of vowel from 4 words.

高速 液體 Chromatography에 의한 Propionic Acid系 誘導體의 分析硏究

李允中,金在鉉 成均館大學校 科學技術硏究所 1984 論文集 Vol.35 No.2

Propionic acid derivatives are nonsteroidal anti-inflammatory, analgesic, and antipyretic drugs which have been used in many ways for the treatment of rheumatoid arthritis and Osteoarthritis. Analytical method for these propionic acid derivatives have been variously studied with an emphasis placed on their practical application to clinical field. The author have examined the general and systematic assay method. After examining the assay method of propionic acid derivatives, Lichrosorb RP-18 as a stationary phase and methanol/water (70 : 30) mobile phase, measuring in room temperature after setting the detecter filter to 254 nm, the author came to the conclusion that it is more simple, rapid and highly sensitive than the old analytical method in the operation, and therefore makes it easier to control the quality, and by using the HPLC, it is possible to study pharmacokinetics as well. It was also possible for drug groups to be divided separately with simultaneously being analyzed.

ICT를 활용한 구성주의적 수업이 과학개념 획득과 문제해결에 미치는 효과

이춘희,정원우,김중욱,이윤종 慶北大學校 科學敎育硏究所 2004 科學敎育硏究誌 Vol.28 No.-

The purpose of this study is to examine in details the effects of the constructive instruction on the acquisition of scientific conceptions and the problem solving of Science based on ICT (Information and Communication Technology). In this study, An examination tool developed for a previous learning concept was applied to instructional model by a constructivism to students, and by grasping a previous learning concept and using ICT. An way of the improvement about acquisition of scientific conceptions and problem solving of subject was inspected, the rate of a correct answer, the decrease rate of misconception, and the achievement rate of a periodical examination were compared. The result of such enforcement was as follows; The motivational induction for learning, the interesting rate, and the rate of a correct answer in an experimental group showed highly. The result of a examination between an experimental group and a comparative group showed similarly. The rate of accomplishment also showed highly in an experimental group. Accordingly, the constructive instruction using ICT proved to be fit for seventh educational course as a student-centered course. The change of recompositional course for knowledge from a previous learning concept to a new one showed clearly.

人的資源會計의 測定과 모델

李喜均,南重憲,金潤泰 울산대학교 1986 연구논문집 Vol.17 No.1

人的資源의 原價 그리고 價値에 대한 測定은 人力計劃과 活用에 必須的이기 때문에 人的資源의 測定은 중요한 과제로 대두되었다. 人的資源會計의 모델은 經營者에게 人的資源活用에 대한 파라다임을 제공함으로써 人的資源을 效果的 혹은 效率的으로 이용하는데 도움을 줄 수 있다. 현재 人的資源會計가 널리 이용되지 않고 앞으로도 채택될 전망이 소극적이라면 그것은 다른 問題보다도 우선 測定上의 어려움이 존재하기 때문이다. 또한 人的資源의 測定方法은 여러가지가 있으나 보편적인 妥當性이 결여되어 있다. 따라서 本論文에서는 人的資源會計의 測定과 모델을 주안점으로 하여 여러가지 測定方法들과 모델을 평가하고 동시에 앞으로의 과제등을 살펴 보았다. For about recent ten years, The subject of human resource accounting has drawn great attention to many practices and studies because of the necessity of manpower planning and management, and it has been recognized that such a model will provide managers with a very good paradigm for making manpower more effectively and efficiently. But it is not long time untill we found some unnoticeable limitations and difficulties in estimation methods and applicative validity. Therefore, in this paper, It has been compared between many estimation models and suggested some issues for further studies from viewpoint of estimation models of human resource accounting.