Qingchun Meng

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The local fuzzy fractal dimension (LFFD) is proposed to extract local fractal feature of medical images. The definition of LFFD is an extension of the pixel-covering method by incorporating the fuzzy set. Multi-feature edge detection is implemented with the LFFD and the Sobel operator. The LFFD can also serve as a characteristic of motion in medical image(More)
Metformin is a first-line used agent for type II diabetes with few side effects. The antineoplastic effect of metformin was widely explored recently. Metformin may also be a prospective chemosensitizer or radiosensitizer in cancer treatment. In the present study, we firstly showed that metformin could effectively enhance the anti-proliferation effect of(More)
Research the effect of stator current of asynchronous motor on shafting torsional vibration under variable-frequency power sources, a simulation model of shafting torsional vibration detection based on MATLAB/SIMULINK is aiming at revealing response and law of stator current on shafting torsional vibration in the event of inverter power supplying, which(More)
Machine learning is a major branch of AI and a main research direction of multi-agent systems (MAS). With the emergence of various new complex systems, agent's individual ability and the system's intelligence level are urgently to be improved. Agent learning methods and agent architecture are studied in this paper and a new hybrid intelligent learning(More)
There is wide concern about polycyclic aromatic hydrocarbons (PAHs) because of their carcinogenic and mutagenic potential. The coking industry is an important source of PAHs. In this study, 36 arable soil samples, a sensitive medium from the perspective of food safety and health, were collected from one of the largest coke production bases in China. The(More)