Zhong-ping Zhao

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This paper is focus on reverse logistics system of china Household Appliances industry, A system dynamic model has been developed to complement with prior models and is validated using data collected from a Color TV company manufacturer handling returns with volumes transacted over a period of two years. The results from the model indicate that part(More)
OBJECTIVE To investigate current epidemiological status of Taenia solium infection and cysticercosis in Shandong Province. METHODS By house to house interview in the field, fecal examination and serological tests, the prevalence data of taeniasis and cysticercosis in human and pig population, and epidemiological factors in relation to the diseases were(More)
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