Shin Pyung Dong

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One of the strategies for migrating legacy systems to distributed object-oriented environments is wrapping. Wrapping is a method of encapsulation that provides wellknown interfaces for accessing legacy systems. The advantage of wrapping is that legacy systems become part of the new generation of applications without discarding the value of the legacy(More)
The acute effects of cigarette smoking on the pulmonary vasculature are poorly understood--both vasodilatory and vasoconstrictive effects have been described. To investigate the mechanisms involved, strips of pig intrapulmonary arteries with and without intact endothelium were exposed to an extract of cigarette smoke made by bubbling smoke through(More)
A 3-year study of spotted fever group rickettsial ecology in Inner Mongolia revealed that nearly half of the human population tested had antibodies to Rickettsia sibirica detected by complement fixation test. Infected persons, ticks and a high proportion of seropositive livestock and wild rodents were found in all five vegetation zones (desert, steppe,(More)
A method was developed for the analysis of mutagenic nitroarenes in carbon black. The procedure included extraction, pre-separation column chromatography on silica gel, and determination by high-performance liquid chromatography (HPLC) using a diode-array detector. Different solvents, such as dichloromethane, benzene, toluene, and chlorobenzene were used(More)
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