• Journal of Photoscience
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• v.7 no.2
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• pp.45-46
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• 2000

The polyoxyethylene compounds were added into the photographic emulsion during the physical ripening of photo sensitive silver halide crystal in this emulsion. The polyoxyethylene compounds improved the photographic properties of the film to a great extent increasing the photo sensitivity and decreasing the fog density.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 1996.11a
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• pp.117-120
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• 1996

In this paper, It is tested by spraying the spoiled liquids on the materials to prove the process of tracking under the various environments. Our experiments ware examined by setting the materials in the spray chamber, and by spraying the distilled water(DW), the city water(CW), the underground water(UW), the artificial acid rain(AR) and the salt water(SW) in applied voltage 3-6[KV]. As the result, the time of tracking breakdown became shorter in the order of DW < CW < UW < AR < SW. XLPE was eroded and its anti-bracking property was very strong, but that of PVC sheath was week. Especially it was confirmed that spraying by AR and SW on the PVC sheath had a serious effect on the lifetime of cable by the tracking breakdown.

• Biomolecules & Therapeutics
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• v.12 no.2
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• pp.114-121
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• 2004

This study was undertaken to evaluate the general pharmacological properties of CJ-11828, an amlodipine adipate, in experimental animals and in vitro system. CJ-11828 had no effects on general behavior, motor coordination, writhing syndromes, pentetrazol-induced chemoshock and electric shock in mice at dose levels of 3,10, anti 30 mg/kg, po. But there were decrease of body temperature, prolongation of sleeping time, and inhibition of intestinal activity in mice treated with CJ-11828 at doses of 10 and 30 mg/kg, po. CJ-11828 decreased the blood pressure in coscuous fog at the dose level of 2mg/kg, po, but it was expected as a result of pharmacological activity of CJ-11828. Any effect on respiratory system was not observed in conscious rat at doses of 3,10, and 30 mg/kg, po. The slight decrease in spontaneous motor activity was observed in mice treated with CJ-11828 at high dose, 30 mg/kg. In vitro experiments, CJ-11828 had no effect on agonists-induced contraction of isolated guinea pig ileum at 0.1, 1, and 10 ${\mu}$M. Based on these results, it was concluded that CJ-11828 had no pharmacological effect ill these studies even up to the 36-fold anticipated clinical dose, 3 mg/kg.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 1999.10a
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• pp.333-344
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• 1999

Currently many studies on the unmanned gantry crane for the automated container terminal are accomplished. This is needed for the development of large scale, automation, high speed, unmanned system and information system in port facility. In order to do efficient container handling job in port yard, the automated handling system is well adapted to the job environments and all-season weather, In order to realize the automatic and unmanned system for container handling job, the required functions and main structure system are studied. The major problems of operation of the conventional gantry crane are that the vibration of gantry structure body is occurred by operation and that high-speed and precision position-velocity control and the capability to dope to the external disturbances caused by the wind, rain, fog and job environments. In this paper, the fundamental study for establishment of the concept and the dynamic modelling of the major sub system of the unmanned gantry crane is presented. These studies are useful for design and manufacturing of the new concept model of the unmanned gantry crane for efficient operation of the automated container terminal.

• Journal of Mushroom
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• v.10 no.4
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• pp.198-202
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• 2012

Recently, Pleurotus eryngii, King oyster mushroom, is main item of exportation in South Korea. For safe transportation to Europe and USA, it is necessary to elucidate suitable conditions of storage and treatment of post-harvest during long shipping period. For the selection of suitable package type, P. eryngii were stored at $0^{\circ}C$ and $4^{\circ}C$ after trimming and non-trimming package. Whole mushroom were packed with polypropylene anti-fog film about 400g. The weight loss ratio and elongation of pileus were increased with increasing storage time and temperature. There were little differences between trimming and non-trimming type in freshness at low temperature storage, $0^{\circ}C$ and $4^{\circ}C$. However, the freshness of non-trimming type P. eryngii at room temperature after low temperature storage is longer than that of trimming type. It was found that the optimum storage temperature and post-harvest treatment of P. eryngii were $4^{\circ}C$ and non-trimming type, respectively.