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Limited battery capacity is one of the most critical factors which limits the development of wireless sensor networks (WSN). In recent years, breakthrough in the field of wireless energy transmission and rechargeable batteries have provided an opportunity for the development of WSN. In tis paper, UAVs with large-capacity batteries can be used as a mobile charger to transmit energy to sensor nodes. At the same time, we proposed a route algorithm for UAVs with controllability and obstacle avoidance characteristics, which can replenish energy for seniors in WSN. Given that the sensor will run out of energy. In the case of not being charged in time, the sensor can be charged by UAVs with the help of wireless charging technology. In order to minimize the dead node in the WSN and maximize the energy efficiency in the charging process, we built a mathematical model which can realize our goal. Compared with NJNP, we prove the validity and rationality of our algorithm.

Objective: To investigate anti-oxidative protective effects and potential anti-apoptosis mechanisms of He Ying An Xin-Formula (HYAX-F). Method: VSMC were incubated by H2O2 (200 μmol/L) for 2 h as oxidative stress control group, same dosage of H2O2 was administered 2 h after treatment with HYAX-F (100 g/mL, 50 g/mL, 25 g/mL) as therapeutic group and incubated for another 24 h, cell supernant content of GSH and MDA were measured. Sub-cutaneous injection in back with D-galactose (125 mg/kg) to establish ageing rat model. Control group: D-galactose 125 mg/kg, therapeutic groups: HYAX-F 500 mg/kg+D-galactose 125 mg/kg, HYAX-F 250 mg/kg+D-galactose 125 mg/kg, HYAX-F 125 mg/kg+D-galactose 125 mg/kg, normal group and young group. The RT-PCR technique was used to measure the expression of relevant genes, such as tumor necrosis factor- alpha (TNF-α) and B-cell lymphoma-2(Bcl-2) in the tissues of brain and liver. Results: Compared with the control group, HYAX-F can significantly enhance the content of GSH (P

According to the problem of robustness and realtime performance in AGV by vision navigation, a navigation method is present in this paper, in which information fusion and mutual aid based on map is adopted. Information model of path is build and direction type of path element is defined. Turning direction for all turning points in whole route can be got by table of judgment rule. Angle of turning can be computed by position information stored in database. Different sensors information is used to control motion of AGV in straight line path and turning path. Map system is developed and can integrate with other sensors information. This method is verified by experiment.

This paper discusses fidelity of simulation in logistics systems. A method to manage fidelity is developed, and three standards according to which fidelity levels can be described are presented. To quantify the differences between different fidelity levels, a Book Retrieval Module in a Book Distribution Center Design Project is studied, three models with different fidelity levels are built, and a method to calculate the differences is given. A system of evaluation index is developed. Some suggestions about fidelity management and evaluation are given at last.