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종이크로마토그래피에서 거름종이의 다공성 및 입자 머무름과 분리능과의 상관관계
표명화,김성규 晋州敎育大學校 科學敎育硏究所 2001 科學敎育硏究 Vol.27 No.-
The Purpose of this study was to separate of qualitative analysis toward the mixture of aqueous pen using chromatography in the unit the separation of the mixture in 4th grade elementary school science. Paper chromatography is basically a type of partition chromatography between water adsorbed onto the cellulose fiber of the paper and a liquid mobile phase in a closed tank. The most common application is the ascending solvent technique and circular developing methods. The paper is hung by means of clips or string and the lower end is made to dip into the eluting solvent. The porosity, adsorption and developing velocity were to investigate of filter paper and paper chromatogiaphy was to separate of a mixture aqueous color pen from using ascending of strips and circular paper chromatography of filter paper. The results are as following: First, Adsorption and development velocity depends upon porosity and particle retention of using filter paper. Second, First of all resolving power is good using chromato-strip that water is best in single developing solvents system and water/acetone (9:1) solvents is best in mixing solvents system using chromato-strip. Third, The resolving power of chromato-strip are very good on porosity and particle retention of filter paper and chromatography papers(2.5㎛>8㎛>11㎛>l㎜>3㎜>20-25㎛). Also the resolving power of using circular paper chromatography gave the same results (2.5/㎛>8㎛>11㎛>l㎜>3㎜>20-25㎛). I want to suggest to a pillar of a paper circular paper chromatography are suited for a short and a coarseness filter paper. The use of thick paper such as filter paper (6㎛), paper chromatography (3㎜) are available in principle similar to thin layer chromatography when used in the ascending method.
Cisplatin이 1차 감작된 마우스의 IgM 용혈반 형성 세포수와 임파구 증식능에 미치는 영향
표명윤,강명옥,윤희은,주은영 숙명여자대학교 약학연구소 1996 약학논문집-숙명여자대학교 Vol.12 No.-
The effects of cisplatin on the IgM plaque forming cells and the lymphocyte proliferation in primarily sensitized mice were investigated. Cisplatin was i.p. injected with a single low does (0.825, 1.65, 3.3mg/kg, which is 5, 10, 20% of LD_50) to mice. The splenic IgM antibody plaque forming cell (PEC) was assayed after ICR mice had been treated in vivo with a combination of three different doses of Cisplatin at different time (day-2, day+2) plus SRBC(day 0). IgM PFC was significantly increased when drug was injected prior to immunization with SRBC, but it was decreased when administered after SRBC antigen. Splenocytes from mice injected with Cisplation(1.65, 3.3mg/kg) on the 2nd day before the test day were cultured with Con A and LPS. The splenocyte proliferation to Con A mitogen was slightly increased, but to LPS was significantly and markedly increased. It was found that Cisplatin at low dose showed either immunosuppression or immunostimulation, depending on the time of drug-application in relation to antigenic treatment.
홍광표,박명호,김성준 江原大學校 産業技術硏究所 1997 産業技術硏究 Vol.17 No.-
DOHC gasoline engine(4-cylinder in line type, 1600cc) is modified for the experiment to develope an alternative fuel. The modified engine is tested with the various combination of gasoline and methanol. Pollutant emissions of CO and HC are measured at the end of exhaust manifold. The concentration of CO and HC in exhaust gas is greatly reduce with the increase of coolant temperature of engine. HC concentration is reduced until methanol content reaches to thirty percent and then increased with the volumetric percentage of methanol in fuel. On the other hand, the concentration of CO is reduced as the methanol centent is increased up to 20 percent and then it becomes constant e en though the methanol content is raised. The effect of engine RPM on the HC and CO exhaust is investigated. HC concentration is reduced as the engine RPM is increased but the typical trends of variation are not found in the measured value of CO concentrations.
김진표,조명곤,권창기 龍仁大學校 武道硏究所 1999 武道硏究所誌 Vol.10 No.1
1. On this study, to evaluate the equilibrium function of the boxers. We measured the Both legs Standing Up Test in two cases, eyes open and eyes closed, for 30seconds and check the range of the displacement of moving distance of center and the prependicular component of force through the test of the equilibrium function in the condition of the board among the boxing team, Basketball team, and the ordinary adult male group using the force plate. 1) There is possibility of the low equilibrium function of boxers compared with others. One of the reasons is the repeated small head injuries which are the characteristic of Boxing Game. 2) We could find out the appreciation of the head injuries is significant in the boxing game place through the equilibrium Test. 2. We took a video of a game of an amateur boxer who was the National Entry of Japan at the Light Weight in Barcelona Olympic Games and performed the condition checks of self consciousness and the Simplicity equilibrium function for 36 days just before and after the game. We could find out following. 1) According to the analysis of Video, we could find out the fact that the winner of the game was hit by the punch which could be connected with the damage several times, and he also had the change of the headache in the condition checks of self consciousness.
조강표,정진택,정명채,김윤석 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)
Wind load is evaluated based on Standard Design Loads for Building of AIK(Architectural Institute of Korea), which was obtained from wind-tunnel experiment for an isolated building in open country, actual wind load can be different from the code because of terrain, building geometry, wind direction, separation distance between the buildings. Among them. separation distance is the most important factor. This paper presents the interference factor for sqaue section high-rise building structure, focusing on the separation distance. Interference factor was obtain from the force balance test in a wind tunnel.
조강표,홍성일,정명채 대한건축학회 2005 大韓建築學會論文集 : 構造系 Vol.21 No.3
Wind loads on buildings in realistic environments surrounded by neighboring buildings may be considerably different from those measured on isolated buildings. Wind-induced interference effects depend mainly on the geometry and arrangement of these structures, their orientation and upstream terrain conditions. The most important factor among them is the arrangement of building structures. It is examined in this study that how wind loads on a high-rise building with square section are affected by the arrangement of neighboring buildings with side ratio of 1.5 to the measured building. Wind-induced interference effects on high-rise buildings were performed by wind-tunnel tests of force balance model. Interference factor was defined as ratio of wind force on a building with interfering buildings present to wind force on an isolated building.