2단계 물류네트워크 시뮬레이터 개발

宋省獻,嚴春植 弘益大學校 科學技術硏究所 2001 科學技術硏究論文集 Vol.12 No.-

One of the important components in designing logistics network is facility location problem. It is possible to solve the real world location problem using the mathematical model included in the package because of the growth of computer hardware technology. In this paper the package is developed to find the optimal network flows and the relevant transportation cost according to the location alternatives of distribution centers in the two stage logistics network. For the given logistics network there are two types of the distribution schema according to the service area constraint of demand points. The one is the minimum cost network flow problem that is solved by the network simplex method and another is the integer programming problem that is solved by the branch & bound method. And the package extracts the distance data that is needed in the optimal model from the geographical data of GIS. The optimal solution can be found using the package developed in this research and the result cab be displayed on GIS map. And also a numerical example is illustrated.

유산소 운동 능력의 차이가 점증최대운동부하 후 피로회복과정에 미치는 영향

송영주,권대근,성동진,황정윤,박천조,김춘우 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1

This study was conducted to investigate the effects of aerobic capacity on blood lactate changes after supramaximal progressive loaded exercise. The subjects were divided into Handball players(HB, n=6)group and Control(CT, n=6)group. All subjects exercised according to the protocol by bicycle erogometer. Blood lactate concentration was also measured during the test time. The RER values of CT group were relatively higher than that of HB group. In particular, the RER values of HR group at exercise 8 & 12min were significantly lower than that of CT group(P<0.05). The blood lactate concentration of HB group was significantly lower than that of CT group at 12min during the exercise(P<0.05). During the recovery times the blood lactate concentration of HB group were significantly lower than that of CT group. In addition, blood lactate clearance of HB group was also higher than that of CT group during the recovery time. From these results, it was suggested that lactate clearance during the supramaximal exercise may be affected by the level of endurance exercise performance.

快削黃銅 旋削時 高速度鋼工具의 Flank 磨耗에 관한 연구

송종학,배춘익 慶南專門大學 1995 論文集 Vol.23 No.1

혼함모드 균열에 대한 진전경로의 시뮬레이션 예측

송춘호,정남용 崇實大學校 生産技術硏究所 1996 論文集 Vol.26 No.1

The mixed-mode cracks are occurred in used of composite materials, bonded joints of dissimilar materials adn structures of homogeneous materials in various industry fields. In order to use safely adn economically these materials, it is very important to predict crack propagation direction adn path applying to frature mechanics. In this paper, the prediction for propagation direction and path were simulated numerically by using 2-dimensional elastic boundary element method and investigated experimentally by static test. The numerically simulated results by boundary element method were well coincide with experimental analsis results. On the base of obtained results, stress intensity factor, relationship between crack length adn angle of slant crack, and crack propagation path were discussed.

초등학교 멀리뛰기 수업에 대한 교수학습 자료개발에 관한 연구

송춘현,박민선 光州敎育大學校 初等敎育硏究所 2002 初等敎育硏究 Vol.17 No.-

This study was to develop the teaching materials for long jump class for the elementary school students. Total of 60 students in the fifth grade(male 30, female 30) were employed to test the effectiveness of teaching aids. The results obtained from this study could be summarize as follows; 1. The knowledge structure model of long jump was extracted from the knowledge structure of physical education. The core task for each stage were developed for the teaching of long jump in the elementary school students. 2. The practical lesson plan models were based on movement education model for middle-grade students and on skill learning model for higher-grade students. 3. In order to improve long jump performance, program for the strengthening of physical fitness and skill-aid exercise programs were developed. 4. The activity model of station learning strategy was developed to achieve the class objective effectively. 5. The related materials and questioning contents for the technique theory and feedback were developed to enhance the teaching ability of teachers.

복어중독에 의한 가사 상태에서 소생한 1예

송승찬,신진호,강석우,박경남,최호순,박근태,문희식,기춘석,이성희,윤병철,노우균,조균석,이민호 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.3

Tetrodotoxin is a neurotoxin produced by about 90 species of puffer fish and causes paralysis of central nervous system and peripheral nerves by blocking the movement of all monovalent cation. Ingestion of tetrodotoxin produces clinical manifestations such as paresthesias(within 10-45 min), vomiting, lightheadedness, salivation, muscle twitching, dysphagia, difficulty in speaking, convulsion and death that expressed by cardiopulmonary arrest with loss of brain stem reflex sometimes. Tetrodotoxin prevents or delays ischemia induced neuronal death by way of following 3 mechanisms. Firstly, it reduces the energy demand of the brain tissues. Secondly, it delays or even prevents anoxic depolarization. Finally, it deminishes ischemia induced cell swelling and cerebral edema. We report a case of puffer fish poisoning which presented with cardiopulmonary arrest and loss of brain stem reflex, but completely recovered by aggressive cardiopulmonary resuscitation.

피부미용을 위한 아로마테라피(Aromatherapy)의 작용원리 및 활용방법

송선영,김춘일 제주한라대학 1999 論文集 Vol.23 No.-

Aromatherapy is a treatment which recovers the balance of mind and body. This is an application to human body, using aroma oil, that is, volatile oil contained in roots, fowers, leaves, stems, shells and seeds of special herbs and cells of fruits, etc. Aroma oil promotes immunocompetence, has an effect on all internal organs, glands and functions of hormones and heightens resistance to mold. And also it stimulates the nerves and rests our mind by intensifying or relaxing muscles, so it helps remove slight symptoms of everylife rather than severe diseases. This treatise shows you the usage and principles of aromatherapy good for beautiful skin. It counteracts poisonous characters of a body through bathing, foot-bathing, spreading, drinking, inhaling, massage and wet-compressing, promotes to renew cells and then cures and improves the quality of the skin. And also the fragrance of aroma oil stimulates the central nerve linked with the sense of the smell and stabilizes the balanced state of the mind. That has a good effect on mental improvement and stress management. This aromatherapy has been known good for beautiful skin and used in massage salons for 2 to 3 years. New aromatherapy is reported on its effects and approved in medical science as enough as doctors and herb doctors make the institute authorized. Aromatherapy is accessible to causes of diseases not to be seen which are coming from irregular living habits throughout long times and normalizes and improves functions of skin. So I hope the aromatherapy becomes stable and practical skin management and popularized so as to be vital tonics and living science as well as alternative medical science.

전기-전자 기기의 과열방지용 박막형 서미스터의 PTC특성

송민종,박춘배 圓光大學校 1996 論文集 Vol.31 No.2

??을 기본 조성식으로하여 1,200[℃]에서 제조된 타게트는 1,350[℃]까지 소결 온도를 변화시켜서 BaTiO₃계 벌크형 세라믹 타게트를 제조하였다. 슬라이드 글라스, ITO(indum-thin-oxide) 글라스, 실리콘 웨이퍼, 백금판, 알루미나 세라믹 등 기판 종류를 변화시켜 295[℃]의 기판 온도에서 RF 스퍼터를 이용하여 서미스터 박막을 제조하였다. 시편의 비저항은 상온에서 ?? 정도의 반도성을 보였으며, 임계 온도 이상에서는 ?? 정도의 절연성을 보였다. 또한, 동일한 조건에서 기판의 종류에 따라 600[℃]에서 열처리한 시편의 저항 변화율은 각 기판에 따라 다르게 나타남을 알 수 있었는데, 이는 BaTiO₃계 박막 재료의 열 팽창 계수와 그에 따른 박막 두께의 변화 및 계면 현상의 차이라고 사료된다. BaTiO₃system bulk-type ceramic targets were fabricated at 1200[℃] by varying calcination temperature up to 1350[℃] based on the basic composite formula of ??. Thin films were formed on a slide glass, ITO glass, silicon wafer, platinum plate, alumina ceramics and etc, at 295[℃] by using RF sputter. Then second heat-treatment temperature was varied in the range of 400 to 1350[℃]. Measured resistivities of specimens at room and ciritical temperatures are about ?? (highly semicondutive) and ?? (insulating), respectively. Besides, it is thought that the proper composite formula could be obtained by considering the composition ratio of target based on the composite components of sputtered specimen. The resistivity variation of the thermally annealed specimen above 600[℃] depends severely on the substrate type. The variation may be due to a variation of film thickness and a difference of interfacial phenomena.

키에르케고어의 역설과 비트겐슈타인의 '새장'에 관한 고찰 : 키에르케고어의 사회성을 중심으로 with the problems concerning Kierkegaard's sociality in the center

최춘영,송은재 군산대학교 현대이념연구소 1996 現代理念硏究 Vol.11 No.-

Kierkegaard has been criticized by many commentators on account of being a thinker lacking sociality. That is to say, they think one couldn't find out the concern for society in which we live or social consciousness in Kierkegaard's thought. But is such a criticism undoubtedly right? This treatise is conceived to doubt this criticism in such a way that it could compare Kierkegaard's methodology with Wittgenstein's.

아로마 요법(Aromatherapy)을 이용한 비만관리

김춘일,송선영 제주한라대학 2000 論文集 Vol.24 No.-

Obesity, a state of excessively accumulated fat inside the body, has frequently been generated due to the imbalance between the intaking calory and the consuming calory which was caused by the increase of intaking high-calory foods and at the same time by the decrease of people's physical activities in our convenient modern lives. In America's case, a third of American people are obese and obesity has become one of major health problems. Even in our country, as our way of eating habits are getting westernized and our way of life is getting convenient, obesity is gradually in the increase and can especially cause serious geriatric diseases. Accordingly various ways of losing weight such as alimentotheraphy, exercise theraphy, medicinal theraphy, operation theraphy, and aromatheraphy have been introduced and sometimes executed without any filtering. This can not only hurt people's health but also cause serious social problems, lowering the work efficiency and reducing the productivity. Most people, however, have an inclination to a faster and simplier way of losing weight. Especially the fact that the aromatheraphy gives powerful and positive influences both to the mind and the body, is favorably received among people all around the world including Japan, Australia, and some American countries. And it has been regarded as a practical and safe beauty theraphy these modern days when many people are interested in natural ways of keeping health. Lots of diet products based on this aromatheraphy have been recently introduced in our country. In this respect, a research & analysis of the aromatheraphy which uses Pachouli of suppressing the appetite centural nerve and Juniper, Geranium, Eucalyptus of showing excellency in urinating and in dissolving fat, is essentially required. On this, I wanted to analyze the effect of aromatheraphy in obesity control and went into a clinical research using aroma oil as a single theraphy. In spite of the only six-week clinical demonstrations, I could get the result of 4.8㎏ loss in weight and of 3.1% reduction in body fat. As you can see in the above result, aromatheraphy could reduce body fat as a single theraphy, but experimental researches and variously repeated studies should be continued to confirm its popularization by embodying its functions in reducing body fat and by securing concrete and relative evidences, I think.