In recent years, the mobile Internet got swift and violent development, business gradually permeate into almost every a of people's work and life, personalized recommendation system model has important application value in mobile commercial activities, this article expounds the mobile commercial personalized recommendation model, and analyzed its structure, discussed the method of using cloud computing for mobile business and the necessity of large data processing.

Electromagnetic flow meters are widely used in two-phase or multi-phase flow measurements in recent years. In this paper, simulation model is established to study the flow meter response characteristics which exist a non-conductive body (oil bubble) in the fluid by use finite element software ANSYS. We analyze different electrode size impact on the response characteristics of electromagnetic flow meter in the measurement of two-phase or multi-phase flow which includes non-conductive material in the fluid, which provides reference for design of the sensor electrode sizes, and provides a theoretical basis for error analysis measuring two-phase or multi-phase flow under different electrode sizes of electromagnetic flowmeter.