화훼꽃말의 표준화를 위한 화훼꽃말의 종류와 유래에 관한 연구

박윤점,허북구,서춘순,송채은,정주연 韓國植物ㆍ人間ㆍ環境學會 1999 인간식물환경학회지 Vol.2 No.1

This survey was carried out to investigate kinds and origins of flower languages of common flowering plants and standardize them. A flowering plant has about 5 kinds of flower languages. Differnt literatures have different flower languages for the same flowering plant. So differnt flower languages need to have standard flower languages. Flower languages originate from shape(8.0%) > color(7.5%) > characteristics(4.4%) > mythology and legend(4.9%) > scientific name(2.3%) > flowering time(1.8%) > perfume(0.9%) > and others(1.7%). The origin of 68.5% of flower languages was found to be obscure.

시공의 불확실성에 의한 옹벽의 파괴확률

박춘수,송용선,박수용 忠南大學校 産業技術硏究所 1993 산업기술연구논문집 Vol.8 No.1

There are a lot of risk to retaining wall's safety by ground water in back fill which is taking place concentrated heavy rain in our country's climatic peculiality. So, this thesis shows to need a supplemently action to standard specification about present drainage facilities. The retaining wall's risk analysis by effecting water pressure carrys on system reliability analysis which uses failure probability.

BaTiO₃계 세라믹의 미세구조와 유전 특성에 관한 연구

박춘배,송민종 圓光大學校 1995 論文集 Vol.29 No.2

BaTiO₃계 세라믹은 페로브스카이트 구조, 높은 유전상수, 그리고 낮은 전이 온도에서 저항에 대한 낮은 온도계수를 갖는 물질이다. 이 세라믹은 소결에 의해 제조된 다결정체로서 내부 구조적으로는 결정립, 입계, 입계내에 존재하는 절연층 및 기공등으로 구성되어 있다. BaCO₃와 TiO₂를 적당한 몰 비율로 조성하여 소결온도의 변화에 따른 시편의 미세구조 변화와 주파수 변화에 따른 유전특성을 고찰하였다. 주파수 변화에 대한 복소 유전율 특성 곡선에서 쌍극자 분극이 나타났으며, 유전분산이 10[MHz]부근에서 크게 일어났다. BaTiO₃has the Perovskite Structure, high dielectric constant and a small temperature coefficient of resistance due to it's low transition temperature(T =120℃). This ceramic system was composed with insulation layer and pore within the grain and grain boundary. It was fabrication in palycrystalline at sintering temperature. BaCO₃and TiO₃was composied mol percent, was showed microstructure in variable sintering temperature and Elecronic, dielectric properties in variable frequency. Polarization in complex dieletric loss factor for the variable frequency was showed bipole polarization, dielectric dispersion is large increase above 10 mega frequency.

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.

얕은 基礎의 支持力에 대한 信賴度 解析

朴春洙,金善郁,宋容善 忠南大學校 産業技術硏究所 1989 산업기술연구논문집 Vol.4 No.1

For the comparison of the accuracy of ultimate bearing capacity equations, Terzaghi's, Meyerhof's and Hansen's equation are analyzed by Advanced First Order Second Moment(AFOSM) method. The relationships are investigated between the probability of failure and the central factor of safety. Some conclusions obtained in this study are presented as follows; 1) As a result of reliability analysis considering correction factors, it is found that Hansen's equation is more accurate than the other equations. 2) Because Terzaghi's equation underestimates the bearing capacity, it gives lower values of probability of failure than those by the other equations. 3) For a given value of the coefficient of variation the probability of failure is more sensitive to the internal friction angle in comparison with other factors such as the cohesion and load.

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.

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.

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.

鋼管多段 Grouting 工法의 Tunnel 補强效果에 關한 硏究

박진원,류체천,김송만,박춘수 충남대학교 산업기술연구소 2001 산업기술연구논문집 Vol.16 No.1

When Umbrella Arch Method is applied in construction of the first Ok-chon tunnel which have soft ground zone or fractured zone, the result as finite element analysis method, the PENTAGON-2D, is following. 1)There is little effect in bottom displacement due to side wall reinforcement, but side wall displacement decrease 50%. 2)Before reinforced by Umbrella Arch Method, rockbolt axial stress is 16 ton which exceed allowed axial stress, however after reinforced, that is about 5.5ton in up and down path, therefore rockbolt axial stress after reinforced is safe. 3)In shotcrete, compression stress decrease average 65% and shearing force and bending moment is decrease more than average 65%. hence shotcrete has great effect on ground reinforcement in side wall. 4)Umbrella Arch Method was proven as assistant method in fractured zone, but in long term stability, judging the fact that bottom displacement is slightly great, the tunnel invert is continued. Or bottom must be reinforced with reinforced with reference to field measurement data in excavation.

石灰 및 시멘트에 依한 安定處理土의 構造와 工學的 性質의 相關性에 關한 硏究

朴春洙,宋寅春 충남대학교 공업교육연구소 1984 論文集 Vol.7 No.1

Granite weathered soil(GS), Kaoline(KC), Quartz(Q) and Feldspar(F), namely, sample soils were experimented with physical and chemical way as well as lime and cement as stabilized materials in this study. Sample soils were stably treated, testing reaction and dynamics. While the for mation of generative minerals was analyzed by x-ray diffraction experiment, the variation of formation which has an effect on the revealing intensity of treated soil was tested with quantitative and qualitative analysis, thus, the above properties was studied.