Low dose of cigarette smoke condensate induces chronic malignant transformation of immortalized human bronchial epithelial cells;

Objective To investigate the cytotoxicity,genotoxicity and its relevant mechanism of immortalized human bronchial epithelial cells(BEP-2D cells)treated by cigarette smoke condensate(CSC),and explore the chemical and biological effect during the damage of cells treated by CSC,and provide the new theoretical basis for diagnosis and treatment of lung cancer.

The automatic cigarette sorting system is a significant application of industrial control in tobacco logistics.

With the continuous development of digitization and automation in China s tobacco sales and logistics,intelligentize and informatization of tobacco logistics is paid more attention to.

According to actual advance of RFID in China tobacco logistics,this paper introduces the main problems which holdback the wide application of RFID,and described the prosperity of RFID if RFID was paid sufficient attention.

The paper discusses the only route can be chosen in reforming Yunnan tobacco management system,which is to establish the unified purchase and supply system of Yunnan tobacco materials.

0μg/mL microcystin-RR (MC-RR) to treat tobacco BY-2 suspension cells, the cell viability, contents of protein, soluble sugar, nitrate-nitrogen, and total phosphorus in cells were determineded; and the viability change condition of acid phosphatase (ACP) was detected.