Poowadol Niyomka

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Isolation of chlamydia trachomatis from the endocervix using cyclohexamide-treated McCoy cells were done in order to estimate the prevalence rate of its infection among gynecologic out patients who had symptoms and/or signs of lower genital tract infection. There were 498 patients from May 1989 to July 1990. Eighty-six per cent of these patients were 25(More)
A new design of a propulsion device is a Collective and Cyclic Pitch Propeller, CCPP. The principle o f the CCPP is similar to a helicopter main rotor. As such, the propeller operates as a combination between a propulsion device and a directional manipulator. It can generate side thrust to provide direct ional control, in addition to axial thrust variation,(More)
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